Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

29 files changed, 26493 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
new file mode 100644
index 000000000..8bf94920d
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
@@ -0,0 +1,54 @@
+#
+# Copyright 2017 Advanced Micro Devices, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+#
+# Makefile for the 'dm' sub-component of DAL.
+# It provides the control and status of dm blocks.
+
+
+
+AMDGPUDM = \
+	amdgpu_dm.o \
+	amdgpu_dm_plane.o \
+	amdgpu_dm_crtc.o \
+	amdgpu_dm_irq.o \
+	amdgpu_dm_mst_types.o \
+	amdgpu_dm_color.o
+
+ifdef CONFIG_DRM_AMD_DC_FP
+AMDGPUDM += dc_fpu.o
+endif
+
+ifneq ($(CONFIG_DRM_AMD_DC),)
+AMDGPUDM += amdgpu_dm_services.o amdgpu_dm_helpers.o amdgpu_dm_pp_smu.o amdgpu_dm_psr.o amdgpu_dm_replay.o
+endif
+
+AMDGPUDM += amdgpu_dm_hdcp.o
+
+ifneq ($(CONFIG_DEBUG_FS),)
+AMDGPUDM += amdgpu_dm_crc.o amdgpu_dm_debugfs.o
+endif
+
+subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc
+
+AMDGPU_DM = $(addprefix $(AMDDALPATH)/amdgpu_dm/,$(AMDGPUDM))
+
+AMD_DISPLAY_FILES += $(AMDGPU_DM)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
new file mode 100644
index 000000000..861b5e45e
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -0,0 +1,11043 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/* The caprices of the preprocessor require that this be declared right here */
+#define CREATE_TRACE_POINTS
+
+#include "dm_services_types.h"
+#include "dc.h"
+#include "link_enc_cfg.h"
+#include "dc/inc/core_types.h"
+#include "dal_asic_id.h"
+#include "dmub/dmub_srv.h"
+#include "dc/inc/hw/dmcu.h"
+#include "dc/inc/hw/abm.h"
+#include "dc/dc_dmub_srv.h"
+#include "dc/dc_edid_parser.h"
+#include "dc/dc_stat.h"
+#include "amdgpu_dm_trace.h"
+#include "dpcd_defs.h"
+#include "link/protocols/link_dpcd.h"
+#include "link_service_types.h"
+#include "link/protocols/link_dp_capability.h"
+#include "link/protocols/link_ddc.h"
+
+#include "vid.h"
+#include "amdgpu.h"
+#include "amdgpu_display.h"
+#include "amdgpu_ucode.h"
+#include "atom.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_plane.h"
+#include "amdgpu_dm_crtc.h"
+#include "amdgpu_dm_hdcp.h"
+#include <drm/display/drm_hdcp_helper.h>
+#include "amdgpu_pm.h"
+#include "amdgpu_atombios.h"
+
+#include "amd_shared.h"
+#include "amdgpu_dm_irq.h"
+#include "dm_helpers.h"
+#include "amdgpu_dm_mst_types.h"
+#if defined(CONFIG_DEBUG_FS)
+#include "amdgpu_dm_debugfs.h"
+#endif
+#include "amdgpu_dm_psr.h"
+#include "amdgpu_dm_replay.h"
+
+#include "ivsrcid/ivsrcid_vislands30.h"
+
+#include <linux/backlight.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/pm_runtime.h>
+#include <linux/pci.h>
+#include <linux/firmware.h>
+#include <linux/component.h>
+#include <linux/dmi.h>
+
+#include <drm/display/drm_dp_mst_helper.h>
+#include <drm/display/drm_hdmi_helper.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_blend.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_vblank.h>
+#include <drm/drm_audio_component.h>
+#include <drm/drm_gem_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include <acpi/video.h>
+
+#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
+
+#include "dcn/dcn_1_0_offset.h"
+#include "dcn/dcn_1_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "soc15_common.h"
+#include "vega10_ip_offset.h"
+
+#include "gc/gc_11_0_0_offset.h"
+#include "gc/gc_11_0_0_sh_mask.h"
+
+#include "modules/inc/mod_freesync.h"
+#include "modules/power/power_helpers.h"
+
+#define FIRMWARE_RENOIR_DMUB "amdgpu/renoir_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_RENOIR_DMUB);
+#define FIRMWARE_SIENNA_CICHLID_DMUB "amdgpu/sienna_cichlid_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_SIENNA_CICHLID_DMUB);
+#define FIRMWARE_NAVY_FLOUNDER_DMUB "amdgpu/navy_flounder_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_NAVY_FLOUNDER_DMUB);
+#define FIRMWARE_GREEN_SARDINE_DMUB "amdgpu/green_sardine_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_GREEN_SARDINE_DMUB);
+#define FIRMWARE_VANGOGH_DMUB "amdgpu/vangogh_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_VANGOGH_DMUB);
+#define FIRMWARE_DIMGREY_CAVEFISH_DMUB "amdgpu/dimgrey_cavefish_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DIMGREY_CAVEFISH_DMUB);
+#define FIRMWARE_BEIGE_GOBY_DMUB "amdgpu/beige_goby_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_BEIGE_GOBY_DMUB);
+#define FIRMWARE_YELLOW_CARP_DMUB "amdgpu/yellow_carp_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_YELLOW_CARP_DMUB);
+#define FIRMWARE_DCN_314_DMUB "amdgpu/dcn_3_1_4_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN_314_DMUB);
+#define FIRMWARE_DCN_315_DMUB "amdgpu/dcn_3_1_5_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN_315_DMUB);
+#define FIRMWARE_DCN316_DMUB "amdgpu/dcn_3_1_6_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN316_DMUB);
+
+#define FIRMWARE_DCN_V3_2_0_DMCUB "amdgpu/dcn_3_2_0_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN_V3_2_0_DMCUB);
+#define FIRMWARE_DCN_V3_2_1_DMCUB "amdgpu/dcn_3_2_1_dmcub.bin"
+MODULE_FIRMWARE(FIRMWARE_DCN_V3_2_1_DMCUB);
+
+#define FIRMWARE_RAVEN_DMCU		"amdgpu/raven_dmcu.bin"
+MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU);
+
+#define FIRMWARE_NAVI12_DMCU            "amdgpu/navi12_dmcu.bin"
+MODULE_FIRMWARE(FIRMWARE_NAVI12_DMCU);
+
+/* Number of bytes in PSP header for firmware. */
+#define PSP_HEADER_BYTES 0x100
+
+/* Number of bytes in PSP footer for firmware. */
+#define PSP_FOOTER_BYTES 0x100
+
+/**
+ * DOC: overview
+ *
+ * The AMDgpu display manager, **amdgpu_dm** (or even simpler,
+ * **dm**) sits between DRM and DC. It acts as a liaison, converting DRM
+ * requests into DC requests, and DC responses into DRM responses.
+ *
+ * The root control structure is &struct amdgpu_display_manager.
+ */
+
+/* basic init/fini API */
+static int amdgpu_dm_init(struct amdgpu_device *adev);
+static void amdgpu_dm_fini(struct amdgpu_device *adev);
+static bool is_freesync_video_mode(const struct drm_display_mode *mode, struct amdgpu_dm_connector *aconnector);
+
+static enum drm_mode_subconnector get_subconnector_type(struct dc_link *link)
+{
+	switch (link->dpcd_caps.dongle_type) {
+	case DISPLAY_DONGLE_NONE:
+		return DRM_MODE_SUBCONNECTOR_Native;
+	case DISPLAY_DONGLE_DP_VGA_CONVERTER:
+		return DRM_MODE_SUBCONNECTOR_VGA;
+	case DISPLAY_DONGLE_DP_DVI_CONVERTER:
+	case DISPLAY_DONGLE_DP_DVI_DONGLE:
+		return DRM_MODE_SUBCONNECTOR_DVID;
+	case DISPLAY_DONGLE_DP_HDMI_CONVERTER:
+	case DISPLAY_DONGLE_DP_HDMI_DONGLE:
+		return DRM_MODE_SUBCONNECTOR_HDMIA;
+	case DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE:
+	default:
+		return DRM_MODE_SUBCONNECTOR_Unknown;
+	}
+}
+
+static void update_subconnector_property(struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_link *link = aconnector->dc_link;
+	struct drm_connector *connector = &aconnector->base;
+	enum drm_mode_subconnector subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
+
+	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
+		return;
+
+	if (aconnector->dc_sink)
+		subconnector = get_subconnector_type(link);
+
+	drm_object_property_set_value(&connector->base,
+			connector->dev->mode_config.dp_subconnector_property,
+			subconnector);
+}
+
+/*
+ * initializes drm_device display related structures, based on the information
+ * provided by DAL. The drm strcutures are: drm_crtc, drm_connector,
+ * drm_encoder, drm_mode_config
+ *
+ * Returns 0 on success
+ */
+static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
+/* removes and deallocates the drm structures, created by the above function */
+static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
+
+static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
+				    struct amdgpu_dm_connector *amdgpu_dm_connector,
+				    u32 link_index,
+				    struct amdgpu_encoder *amdgpu_encoder);
+static int amdgpu_dm_encoder_init(struct drm_device *dev,
+				  struct amdgpu_encoder *aencoder,
+				  uint32_t link_index);
+
+static int amdgpu_dm_connector_get_modes(struct drm_connector *connector);
+
+static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state);
+
+static int amdgpu_dm_atomic_check(struct drm_device *dev,
+				  struct drm_atomic_state *state);
+
+static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector);
+static void handle_hpd_rx_irq(void *param);
+
+static bool
+is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state,
+				 struct drm_crtc_state *new_crtc_state);
+/*
+ * dm_vblank_get_counter
+ *
+ * @brief
+ * Get counter for number of vertical blanks
+ *
+ * @param
+ * struct amdgpu_device *adev - [in] desired amdgpu device
+ * int disp_idx - [in] which CRTC to get the counter from
+ *
+ * @return
+ * Counter for vertical blanks
+ */
+static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc)
+{
+	struct amdgpu_crtc *acrtc = NULL;
+
+	if (crtc >= adev->mode_info.num_crtc)
+		return 0;
+
+	acrtc = adev->mode_info.crtcs[crtc];
+
+	if (!acrtc->dm_irq_params.stream) {
+		DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
+			  crtc);
+		return 0;
+	}
+
+	return dc_stream_get_vblank_counter(acrtc->dm_irq_params.stream);
+}
+
+static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
+				  u32 *vbl, u32 *position)
+{
+	u32 v_blank_start, v_blank_end, h_position, v_position;
+	struct amdgpu_crtc *acrtc = NULL;
+
+	if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
+		return -EINVAL;
+
+	acrtc = adev->mode_info.crtcs[crtc];
+
+	if (!acrtc->dm_irq_params.stream) {
+		DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
+			  crtc);
+		return 0;
+	}
+
+	/*
+	 * TODO rework base driver to use values directly.
+	 * for now parse it back into reg-format
+	 */
+	dc_stream_get_scanoutpos(acrtc->dm_irq_params.stream,
+				 &v_blank_start,
+				 &v_blank_end,
+				 &h_position,
+				 &v_position);
+
+	*position = v_position | (h_position << 16);
+	*vbl = v_blank_start | (v_blank_end << 16);
+
+	return 0;
+}
+
+static bool dm_is_idle(void *handle)
+{
+	/* XXX todo */
+	return true;
+}
+
+static int dm_wait_for_idle(void *handle)
+{
+	/* XXX todo */
+	return 0;
+}
+
+static bool dm_check_soft_reset(void *handle)
+{
+	return false;
+}
+
+static int dm_soft_reset(void *handle)
+{
+	/* XXX todo */
+	return 0;
+}
+
+static struct amdgpu_crtc *
+get_crtc_by_otg_inst(struct amdgpu_device *adev,
+		     int otg_inst)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_crtc *crtc;
+	struct amdgpu_crtc *amdgpu_crtc;
+
+	if (WARN_ON(otg_inst == -1))
+		return adev->mode_info.crtcs[0];
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		amdgpu_crtc = to_amdgpu_crtc(crtc);
+
+		if (amdgpu_crtc->otg_inst == otg_inst)
+			return amdgpu_crtc;
+	}
+
+	return NULL;
+}
+
+static inline bool is_dc_timing_adjust_needed(struct dm_crtc_state *old_state,
+					      struct dm_crtc_state *new_state)
+{
+	if (new_state->freesync_config.state ==  VRR_STATE_ACTIVE_FIXED)
+		return true;
+	else if (amdgpu_dm_crtc_vrr_active(old_state) != amdgpu_dm_crtc_vrr_active(new_state))
+		return true;
+	else
+		return false;
+}
+
+static inline void reverse_planes_order(struct dc_surface_update *array_of_surface_update,
+					int planes_count)
+{
+	int i, j;
+
+	for (i = 0, j = planes_count - 1; i < j; i++, j--)
+		swap(array_of_surface_update[i], array_of_surface_update[j]);
+}
+
+/**
+ * update_planes_and_stream_adapter() - Send planes to be updated in DC
+ *
+ * DC has a generic way to update planes and stream via
+ * dc_update_planes_and_stream function; however, DM might need some
+ * adjustments and preparation before calling it. This function is a wrapper
+ * for the dc_update_planes_and_stream that does any required configuration
+ * before passing control to DC.
+ *
+ * @dc: Display Core control structure
+ * @update_type: specify whether it is FULL/MEDIUM/FAST update
+ * @planes_count: planes count to update
+ * @stream: stream state
+ * @stream_update: stream update
+ * @array_of_surface_update: dc surface update pointer
+ *
+ */
+static inline bool update_planes_and_stream_adapter(struct dc *dc,
+						    int update_type,
+						    int planes_count,
+						    struct dc_stream_state *stream,
+						    struct dc_stream_update *stream_update,
+						    struct dc_surface_update *array_of_surface_update)
+{
+	reverse_planes_order(array_of_surface_update, planes_count);
+
+	/*
+	 * Previous frame finished and HW is ready for optimization.
+	 */
+	if (update_type == UPDATE_TYPE_FAST)
+		dc_post_update_surfaces_to_stream(dc);
+
+	return dc_update_planes_and_stream(dc,
+					   array_of_surface_update,
+					   planes_count,
+					   stream,
+					   stream_update);
+}
+
+/**
+ * dm_pflip_high_irq() - Handle pageflip interrupt
+ * @interrupt_params: ignored
+ *
+ * Handles the pageflip interrupt by notifying all interested parties
+ * that the pageflip has been completed.
+ */
+static void dm_pflip_high_irq(void *interrupt_params)
+{
+	struct amdgpu_crtc *amdgpu_crtc;
+	struct common_irq_params *irq_params = interrupt_params;
+	struct amdgpu_device *adev = irq_params->adev;
+	unsigned long flags;
+	struct drm_pending_vblank_event *e;
+	u32 vpos, hpos, v_blank_start, v_blank_end;
+	bool vrr_active;
+
+	amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP);
+
+	/* IRQ could occur when in initial stage */
+	/* TODO work and BO cleanup */
+	if (amdgpu_crtc == NULL) {
+		DC_LOG_PFLIP("CRTC is null, returning.\n");
+		return;
+	}
+
+	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+
+	if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED) {
+		DC_LOG_PFLIP("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p]\n",
+			     amdgpu_crtc->pflip_status,
+			     AMDGPU_FLIP_SUBMITTED,
+			     amdgpu_crtc->crtc_id,
+			     amdgpu_crtc);
+		spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+		return;
+	}
+
+	/* page flip completed. */
+	e = amdgpu_crtc->event;
+	amdgpu_crtc->event = NULL;
+
+	WARN_ON(!e);
+
+	vrr_active = amdgpu_dm_crtc_vrr_active_irq(amdgpu_crtc);
+
+	/* Fixed refresh rate, or VRR scanout position outside front-porch? */
+	if (!vrr_active ||
+	    !dc_stream_get_scanoutpos(amdgpu_crtc->dm_irq_params.stream, &v_blank_start,
+				      &v_blank_end, &hpos, &vpos) ||
+	    (vpos < v_blank_start)) {
+		/* Update to correct count and vblank timestamp if racing with
+		 * vblank irq. This also updates to the correct vblank timestamp
+		 * even in VRR mode, as scanout is past the front-porch atm.
+		 */
+		drm_crtc_accurate_vblank_count(&amdgpu_crtc->base);
+
+		/* Wake up userspace by sending the pageflip event with proper
+		 * count and timestamp of vblank of flip completion.
+		 */
+		if (e) {
+			drm_crtc_send_vblank_event(&amdgpu_crtc->base, e);
+
+			/* Event sent, so done with vblank for this flip */
+			drm_crtc_vblank_put(&amdgpu_crtc->base);
+		}
+	} else if (e) {
+		/* VRR active and inside front-porch: vblank count and
+		 * timestamp for pageflip event will only be up to date after
+		 * drm_crtc_handle_vblank() has been executed from late vblank
+		 * irq handler after start of back-porch (vline 0). We queue the
+		 * pageflip event for send-out by drm_crtc_handle_vblank() with
+		 * updated timestamp and count, once it runs after us.
+		 *
+		 * We need to open-code this instead of using the helper
+		 * drm_crtc_arm_vblank_event(), as that helper would
+		 * call drm_crtc_accurate_vblank_count(), which we must
+		 * not call in VRR mode while we are in front-porch!
+		 */
+
+		/* sequence will be replaced by real count during send-out. */
+		e->sequence = drm_crtc_vblank_count(&amdgpu_crtc->base);
+		e->pipe = amdgpu_crtc->crtc_id;
+
+		list_add_tail(&e->base.link, &adev_to_drm(adev)->vblank_event_list);
+		e = NULL;
+	}
+
+	/* Keep track of vblank of this flip for flip throttling. We use the
+	 * cooked hw counter, as that one incremented at start of this vblank
+	 * of pageflip completion, so last_flip_vblank is the forbidden count
+	 * for queueing new pageflips if vsync + VRR is enabled.
+	 */
+	amdgpu_crtc->dm_irq_params.last_flip_vblank =
+		amdgpu_get_vblank_counter_kms(&amdgpu_crtc->base);
+
+	amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
+	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+
+	DC_LOG_PFLIP("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n",
+		     amdgpu_crtc->crtc_id, amdgpu_crtc,
+		     vrr_active, (int) !e);
+}
+
+static void dm_vupdate_high_irq(void *interrupt_params)
+{
+	struct common_irq_params *irq_params = interrupt_params;
+	struct amdgpu_device *adev = irq_params->adev;
+	struct amdgpu_crtc *acrtc;
+	struct drm_device *drm_dev;
+	struct drm_vblank_crtc *vblank;
+	ktime_t frame_duration_ns, previous_timestamp;
+	unsigned long flags;
+	int vrr_active;
+
+	acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VUPDATE);
+
+	if (acrtc) {
+		vrr_active = amdgpu_dm_crtc_vrr_active_irq(acrtc);
+		drm_dev = acrtc->base.dev;
+		vblank = &drm_dev->vblank[acrtc->base.index];
+		previous_timestamp = atomic64_read(&irq_params->previous_timestamp);
+		frame_duration_ns = vblank->time - previous_timestamp;
+
+		if (frame_duration_ns > 0) {
+			trace_amdgpu_refresh_rate_track(acrtc->base.index,
+						frame_duration_ns,
+						ktime_divns(NSEC_PER_SEC, frame_duration_ns));
+			atomic64_set(&irq_params->previous_timestamp, vblank->time);
+		}
+
+		DC_LOG_VBLANK("crtc:%d, vupdate-vrr:%d\n",
+			      acrtc->crtc_id,
+			      vrr_active);
+
+		/* Core vblank handling is done here after end of front-porch in
+		 * vrr mode, as vblank timestamping will give valid results
+		 * while now done after front-porch. This will also deliver
+		 * page-flip completion events that have been queued to us
+		 * if a pageflip happened inside front-porch.
+		 */
+		if (vrr_active) {
+			amdgpu_dm_crtc_handle_vblank(acrtc);
+
+			/* BTR processing for pre-DCE12 ASICs */
+			if (acrtc->dm_irq_params.stream &&
+			    adev->family < AMDGPU_FAMILY_AI) {
+				spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+				mod_freesync_handle_v_update(
+				    adev->dm.freesync_module,
+				    acrtc->dm_irq_params.stream,
+				    &acrtc->dm_irq_params.vrr_params);
+
+				dc_stream_adjust_vmin_vmax(
+				    adev->dm.dc,
+				    acrtc->dm_irq_params.stream,
+				    &acrtc->dm_irq_params.vrr_params.adjust);
+				spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+			}
+		}
+	}
+}
+
+/**
+ * dm_crtc_high_irq() - Handles CRTC interrupt
+ * @interrupt_params: used for determining the CRTC instance
+ *
+ * Handles the CRTC/VSYNC interrupt by notfying DRM's VBLANK
+ * event handler.
+ */
+static void dm_crtc_high_irq(void *interrupt_params)
+{
+	struct common_irq_params *irq_params = interrupt_params;
+	struct amdgpu_device *adev = irq_params->adev;
+	struct amdgpu_crtc *acrtc;
+	unsigned long flags;
+	int vrr_active;
+
+	acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
+	if (!acrtc)
+		return;
+
+	vrr_active = amdgpu_dm_crtc_vrr_active_irq(acrtc);
+
+	DC_LOG_VBLANK("crtc:%d, vupdate-vrr:%d, planes:%d\n", acrtc->crtc_id,
+		      vrr_active, acrtc->dm_irq_params.active_planes);
+
+	/**
+	 * Core vblank handling at start of front-porch is only possible
+	 * in non-vrr mode, as only there vblank timestamping will give
+	 * valid results while done in front-porch. Otherwise defer it
+	 * to dm_vupdate_high_irq after end of front-porch.
+	 */
+	if (!vrr_active)
+		amdgpu_dm_crtc_handle_vblank(acrtc);
+
+	/**
+	 * Following stuff must happen at start of vblank, for crc
+	 * computation and below-the-range btr support in vrr mode.
+	 */
+	amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
+
+	/* BTR updates need to happen before VUPDATE on Vega and above. */
+	if (adev->family < AMDGPU_FAMILY_AI)
+		return;
+
+	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+
+	if (acrtc->dm_irq_params.stream &&
+	    acrtc->dm_irq_params.vrr_params.supported &&
+	    acrtc->dm_irq_params.freesync_config.state ==
+		    VRR_STATE_ACTIVE_VARIABLE) {
+		mod_freesync_handle_v_update(adev->dm.freesync_module,
+					     acrtc->dm_irq_params.stream,
+					     &acrtc->dm_irq_params.vrr_params);
+
+		dc_stream_adjust_vmin_vmax(adev->dm.dc, acrtc->dm_irq_params.stream,
+					   &acrtc->dm_irq_params.vrr_params.adjust);
+	}
+
+	/*
+	 * If there aren't any active_planes then DCH HUBP may be clock-gated.
+	 * In that case, pageflip completion interrupts won't fire and pageflip
+	 * completion events won't get delivered. Prevent this by sending
+	 * pending pageflip events from here if a flip is still pending.
+	 *
+	 * If any planes are enabled, use dm_pflip_high_irq() instead, to
+	 * avoid race conditions between flip programming and completion,
+	 * which could cause too early flip completion events.
+	 */
+	if (adev->family >= AMDGPU_FAMILY_RV &&
+	    acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED &&
+	    acrtc->dm_irq_params.active_planes == 0) {
+		if (acrtc->event) {
+			drm_crtc_send_vblank_event(&acrtc->base, acrtc->event);
+			acrtc->event = NULL;
+			drm_crtc_vblank_put(&acrtc->base);
+		}
+		acrtc->pflip_status = AMDGPU_FLIP_NONE;
+	}
+
+	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+/**
+ * dm_dcn_vertical_interrupt0_high_irq() - Handles OTG Vertical interrupt0 for
+ * DCN generation ASICs
+ * @interrupt_params: interrupt parameters
+ *
+ * Used to set crc window/read out crc value at vertical line 0 position
+ */
+static void dm_dcn_vertical_interrupt0_high_irq(void *interrupt_params)
+{
+	struct common_irq_params *irq_params = interrupt_params;
+	struct amdgpu_device *adev = irq_params->adev;
+	struct amdgpu_crtc *acrtc;
+
+	acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VLINE0);
+
+	if (!acrtc)
+		return;
+
+	amdgpu_dm_crtc_handle_crc_window_irq(&acrtc->base);
+}
+#endif /* CONFIG_DRM_AMD_SECURE_DISPLAY */
+
+/**
+ * dmub_aux_setconfig_callback - Callback for AUX or SET_CONFIG command.
+ * @adev: amdgpu_device pointer
+ * @notify: dmub notification structure
+ *
+ * Dmub AUX or SET_CONFIG command completion processing callback
+ * Copies dmub notification to DM which is to be read by AUX command.
+ * issuing thread and also signals the event to wake up the thread.
+ */
+static void dmub_aux_setconfig_callback(struct amdgpu_device *adev,
+					struct dmub_notification *notify)
+{
+	if (adev->dm.dmub_notify)
+		memcpy(adev->dm.dmub_notify, notify, sizeof(struct dmub_notification));
+	if (notify->type == DMUB_NOTIFICATION_AUX_REPLY)
+		complete(&adev->dm.dmub_aux_transfer_done);
+}
+
+/**
+ * dmub_hpd_callback - DMUB HPD interrupt processing callback.
+ * @adev: amdgpu_device pointer
+ * @notify: dmub notification structure
+ *
+ * Dmub Hpd interrupt processing callback. Gets displayindex through the
+ * ink index and calls helper to do the processing.
+ */
+static void dmub_hpd_callback(struct amdgpu_device *adev,
+			      struct dmub_notification *notify)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct amdgpu_dm_connector *hpd_aconnector = NULL;
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	struct dc_link *link;
+	u8 link_index = 0;
+	struct drm_device *dev;
+
+	if (adev == NULL)
+		return;
+
+	if (notify == NULL) {
+		DRM_ERROR("DMUB HPD callback notification was NULL");
+		return;
+	}
+
+	if (notify->link_index > adev->dm.dc->link_count) {
+		DRM_ERROR("DMUB HPD index (%u)is abnormal", notify->link_index);
+		return;
+	}
+
+	link_index = notify->link_index;
+	link = adev->dm.dc->links[link_index];
+	dev = adev->dm.ddev;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (link && aconnector->dc_link == link) {
+			if (notify->type == DMUB_NOTIFICATION_HPD)
+				DRM_INFO("DMUB HPD callback: link_index=%u\n", link_index);
+			else if (notify->type == DMUB_NOTIFICATION_HPD_IRQ)
+				DRM_INFO("DMUB HPD IRQ callback: link_index=%u\n", link_index);
+			else
+				DRM_WARN("DMUB Unknown HPD callback type %d, link_index=%u\n",
+						notify->type, link_index);
+
+			hpd_aconnector = aconnector;
+			break;
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+
+	if (hpd_aconnector) {
+		if (notify->type == DMUB_NOTIFICATION_HPD)
+			handle_hpd_irq_helper(hpd_aconnector);
+		else if (notify->type == DMUB_NOTIFICATION_HPD_IRQ)
+			handle_hpd_rx_irq(hpd_aconnector);
+	}
+}
+
+/**
+ * register_dmub_notify_callback - Sets callback for DMUB notify
+ * @adev: amdgpu_device pointer
+ * @type: Type of dmub notification
+ * @callback: Dmub interrupt callback function
+ * @dmub_int_thread_offload: offload indicator
+ *
+ * API to register a dmub callback handler for a dmub notification
+ * Also sets indicator whether callback processing to be offloaded.
+ * to dmub interrupt handling thread
+ * Return: true if successfully registered, false if there is existing registration
+ */
+static bool register_dmub_notify_callback(struct amdgpu_device *adev,
+					  enum dmub_notification_type type,
+					  dmub_notify_interrupt_callback_t callback,
+					  bool dmub_int_thread_offload)
+{
+	if (callback != NULL && type < ARRAY_SIZE(adev->dm.dmub_thread_offload)) {
+		adev->dm.dmub_callback[type] = callback;
+		adev->dm.dmub_thread_offload[type] = dmub_int_thread_offload;
+	} else
+		return false;
+
+	return true;
+}
+
+static void dm_handle_hpd_work(struct work_struct *work)
+{
+	struct dmub_hpd_work *dmub_hpd_wrk;
+
+	dmub_hpd_wrk = container_of(work, struct dmub_hpd_work, handle_hpd_work);
+
+	if (!dmub_hpd_wrk->dmub_notify) {
+		DRM_ERROR("dmub_hpd_wrk dmub_notify is NULL");
+		return;
+	}
+
+	if (dmub_hpd_wrk->dmub_notify->type < ARRAY_SIZE(dmub_hpd_wrk->adev->dm.dmub_callback)) {
+		dmub_hpd_wrk->adev->dm.dmub_callback[dmub_hpd_wrk->dmub_notify->type](dmub_hpd_wrk->adev,
+		dmub_hpd_wrk->dmub_notify);
+	}
+
+	kfree(dmub_hpd_wrk->dmub_notify);
+	kfree(dmub_hpd_wrk);
+
+}
+
+#define DMUB_TRACE_MAX_READ 64
+/**
+ * dm_dmub_outbox1_low_irq() - Handles Outbox interrupt
+ * @interrupt_params: used for determining the Outbox instance
+ *
+ * Handles the Outbox Interrupt
+ * event handler.
+ */
+static void dm_dmub_outbox1_low_irq(void *interrupt_params)
+{
+	struct dmub_notification notify;
+	struct common_irq_params *irq_params = interrupt_params;
+	struct amdgpu_device *adev = irq_params->adev;
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct dmcub_trace_buf_entry entry = { 0 };
+	u32 count = 0;
+	struct dmub_hpd_work *dmub_hpd_wrk;
+	struct dc_link *plink = NULL;
+
+	if (dc_enable_dmub_notifications(adev->dm.dc) &&
+		irq_params->irq_src == DC_IRQ_SOURCE_DMCUB_OUTBOX) {
+
+		do {
+			dc_stat_get_dmub_notification(adev->dm.dc, &notify);
+			if (notify.type >= ARRAY_SIZE(dm->dmub_thread_offload)) {
+				DRM_ERROR("DM: notify type %d invalid!", notify.type);
+				continue;
+			}
+			if (!dm->dmub_callback[notify.type]) {
+				DRM_DEBUG_DRIVER("DMUB notification skipped, no handler: type=%d\n", notify.type);
+				continue;
+			}
+			if (dm->dmub_thread_offload[notify.type] == true) {
+				dmub_hpd_wrk = kzalloc(sizeof(*dmub_hpd_wrk), GFP_ATOMIC);
+				if (!dmub_hpd_wrk) {
+					DRM_ERROR("Failed to allocate dmub_hpd_wrk");
+					return;
+				}
+				dmub_hpd_wrk->dmub_notify = kmemdup(&notify, sizeof(struct dmub_notification),
+								    GFP_ATOMIC);
+				if (!dmub_hpd_wrk->dmub_notify) {
+					kfree(dmub_hpd_wrk);
+					DRM_ERROR("Failed to allocate dmub_hpd_wrk->dmub_notify");
+					return;
+				}
+				INIT_WORK(&dmub_hpd_wrk->handle_hpd_work, dm_handle_hpd_work);
+				dmub_hpd_wrk->adev = adev;
+				if (notify.type == DMUB_NOTIFICATION_HPD) {
+					plink = adev->dm.dc->links[notify.link_index];
+					if (plink) {
+						plink->hpd_status =
+							notify.hpd_status == DP_HPD_PLUG;
+					}
+				}
+				queue_work(adev->dm.delayed_hpd_wq, &dmub_hpd_wrk->handle_hpd_work);
+			} else {
+				dm->dmub_callback[notify.type](adev, &notify);
+			}
+		} while (notify.pending_notification);
+	}
+
+
+	do {
+		if (dc_dmub_srv_get_dmub_outbox0_msg(dm->dc, &entry)) {
+			trace_amdgpu_dmub_trace_high_irq(entry.trace_code, entry.tick_count,
+							entry.param0, entry.param1);
+
+			DRM_DEBUG_DRIVER("trace_code:%u, tick_count:%u, param0:%u, param1:%u\n",
+				 entry.trace_code, entry.tick_count, entry.param0, entry.param1);
+		} else
+			break;
+
+		count++;
+
+	} while (count <= DMUB_TRACE_MAX_READ);
+
+	if (count > DMUB_TRACE_MAX_READ)
+		DRM_DEBUG_DRIVER("Warning : count > DMUB_TRACE_MAX_READ");
+}
+
+static int dm_set_clockgating_state(void *handle,
+		  enum amd_clockgating_state state)
+{
+	return 0;
+}
+
+static int dm_set_powergating_state(void *handle,
+		  enum amd_powergating_state state)
+{
+	return 0;
+}
+
+/* Prototypes of private functions */
+static int dm_early_init(void *handle);
+
+/* Allocate memory for FBC compressed data  */
+static void amdgpu_dm_fbc_init(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dm_compressor_info *compressor = &adev->dm.compressor;
+	struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector);
+	struct drm_display_mode *mode;
+	unsigned long max_size = 0;
+
+	if (adev->dm.dc->fbc_compressor == NULL)
+		return;
+
+	if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP)
+		return;
+
+	if (compressor->bo_ptr)
+		return;
+
+
+	list_for_each_entry(mode, &connector->modes, head) {
+		if (max_size < mode->htotal * mode->vtotal)
+			max_size = mode->htotal * mode->vtotal;
+	}
+
+	if (max_size) {
+		int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE,
+			    AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr,
+			    &compressor->gpu_addr, &compressor->cpu_addr);
+
+		if (r)
+			DRM_ERROR("DM: Failed to initialize FBC\n");
+		else {
+			adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr;
+			DRM_INFO("DM: FBC alloc %lu\n", max_size*4);
+		}
+
+	}
+
+}
+
+static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port,
+					  int pipe, bool *enabled,
+					  unsigned char *buf, int max_bytes)
+{
+	struct drm_device *dev = dev_get_drvdata(kdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+	struct amdgpu_dm_connector *aconnector;
+	int ret = 0;
+
+	*enabled = false;
+
+	mutex_lock(&adev->dm.audio_lock);
+
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	drm_for_each_connector_iter(connector, &conn_iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (aconnector->audio_inst != port)
+			continue;
+
+		*enabled = true;
+		ret = drm_eld_size(connector->eld);
+		memcpy(buf, connector->eld, min(max_bytes, ret));
+
+		break;
+	}
+	drm_connector_list_iter_end(&conn_iter);
+
+	mutex_unlock(&adev->dm.audio_lock);
+
+	DRM_DEBUG_KMS("Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled);
+
+	return ret;
+}
+
+static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = {
+	.get_eld = amdgpu_dm_audio_component_get_eld,
+};
+
+static int amdgpu_dm_audio_component_bind(struct device *kdev,
+				       struct device *hda_kdev, void *data)
+{
+	struct drm_device *dev = dev_get_drvdata(kdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct drm_audio_component *acomp = data;
+
+	acomp->ops = &amdgpu_dm_audio_component_ops;
+	acomp->dev = kdev;
+	adev->dm.audio_component = acomp;
+
+	return 0;
+}
+
+static void amdgpu_dm_audio_component_unbind(struct device *kdev,
+					  struct device *hda_kdev, void *data)
+{
+	struct drm_device *dev = dev_get_drvdata(kdev);
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct drm_audio_component *acomp = data;
+
+	acomp->ops = NULL;
+	acomp->dev = NULL;
+	adev->dm.audio_component = NULL;
+}
+
+static const struct component_ops amdgpu_dm_audio_component_bind_ops = {
+	.bind	= amdgpu_dm_audio_component_bind,
+	.unbind	= amdgpu_dm_audio_component_unbind,
+};
+
+static int amdgpu_dm_audio_init(struct amdgpu_device *adev)
+{
+	int i, ret;
+
+	if (!amdgpu_audio)
+		return 0;
+
+	adev->mode_info.audio.enabled = true;
+
+	adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count;
+
+	for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
+		adev->mode_info.audio.pin[i].channels = -1;
+		adev->mode_info.audio.pin[i].rate = -1;
+		adev->mode_info.audio.pin[i].bits_per_sample = -1;
+		adev->mode_info.audio.pin[i].status_bits = 0;
+		adev->mode_info.audio.pin[i].category_code = 0;
+		adev->mode_info.audio.pin[i].connected = false;
+		adev->mode_info.audio.pin[i].id =
+			adev->dm.dc->res_pool->audios[i]->inst;
+		adev->mode_info.audio.pin[i].offset = 0;
+	}
+
+	ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops);
+	if (ret < 0)
+		return ret;
+
+	adev->dm.audio_registered = true;
+
+	return 0;
+}
+
+static void amdgpu_dm_audio_fini(struct amdgpu_device *adev)
+{
+	if (!amdgpu_audio)
+		return;
+
+	if (!adev->mode_info.audio.enabled)
+		return;
+
+	if (adev->dm.audio_registered) {
+		component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops);
+		adev->dm.audio_registered = false;
+	}
+
+	/* TODO: Disable audio? */
+
+	adev->mode_info.audio.enabled = false;
+}
+
+static  void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin)
+{
+	struct drm_audio_component *acomp = adev->dm.audio_component;
+
+	if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) {
+		DRM_DEBUG_KMS("Notify ELD: %d\n", pin);
+
+		acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
+						 pin, -1);
+	}
+}
+
+static int dm_dmub_hw_init(struct amdgpu_device *adev)
+{
+	const struct dmcub_firmware_header_v1_0 *hdr;
+	struct dmub_srv *dmub_srv = adev->dm.dmub_srv;
+	struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info;
+	const struct firmware *dmub_fw = adev->dm.dmub_fw;
+	struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;
+	struct abm *abm = adev->dm.dc->res_pool->abm;
+	struct dmub_srv_hw_params hw_params;
+	enum dmub_status status;
+	const unsigned char *fw_inst_const, *fw_bss_data;
+	u32 i, fw_inst_const_size, fw_bss_data_size;
+	bool has_hw_support;
+
+	if (!dmub_srv)
+		/* DMUB isn't supported on the ASIC. */
+		return 0;
+
+	if (!fb_info) {
+		DRM_ERROR("No framebuffer info for DMUB service.\n");
+		return -EINVAL;
+	}
+
+	if (!dmub_fw) {
+		/* Firmware required for DMUB support. */
+		DRM_ERROR("No firmware provided for DMUB.\n");
+		return -EINVAL;
+	}
+
+	status = dmub_srv_has_hw_support(dmub_srv, &has_hw_support);
+	if (status != DMUB_STATUS_OK) {
+		DRM_ERROR("Error checking HW support for DMUB: %d\n", status);
+		return -EINVAL;
+	}
+
+	if (!has_hw_support) {
+		DRM_INFO("DMUB unsupported on ASIC\n");
+		return 0;
+	}
+
+	/* Reset DMCUB if it was previously running - before we overwrite its memory. */
+	status = dmub_srv_hw_reset(dmub_srv);
+	if (status != DMUB_STATUS_OK)
+		DRM_WARN("Error resetting DMUB HW: %d\n", status);
+
+	hdr = (const struct dmcub_firmware_header_v1_0 *)dmub_fw->data;
+
+	fw_inst_const = dmub_fw->data +
+			le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
+			PSP_HEADER_BYTES;
+
+	fw_bss_data = dmub_fw->data +
+		      le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
+		      le32_to_cpu(hdr->inst_const_bytes);
+
+	/* Copy firmware and bios info into FB memory. */
+	fw_inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
+			     PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
+
+	fw_bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
+
+	/* if adev->firmware.load_type == AMDGPU_FW_LOAD_PSP,
+	 * amdgpu_ucode_init_single_fw will load dmub firmware
+	 * fw_inst_const part to cw0; otherwise, the firmware back door load
+	 * will be done by dm_dmub_hw_init
+	 */
+	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
+		memcpy(fb_info->fb[DMUB_WINDOW_0_INST_CONST].cpu_addr, fw_inst_const,
+				fw_inst_const_size);
+	}
+
+	if (fw_bss_data_size)
+		memcpy(fb_info->fb[DMUB_WINDOW_2_BSS_DATA].cpu_addr,
+		       fw_bss_data, fw_bss_data_size);
+
+	/* Copy firmware bios info into FB memory. */
+	memcpy(fb_info->fb[DMUB_WINDOW_3_VBIOS].cpu_addr, adev->bios,
+	       adev->bios_size);
+
+	/* Reset regions that need to be reset. */
+	memset(fb_info->fb[DMUB_WINDOW_4_MAILBOX].cpu_addr, 0,
+	fb_info->fb[DMUB_WINDOW_4_MAILBOX].size);
+
+	memset(fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr, 0,
+	       fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size);
+
+	memset(fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr, 0,
+	       fb_info->fb[DMUB_WINDOW_6_FW_STATE].size);
+
+	/* Initialize hardware. */
+	memset(&hw_params, 0, sizeof(hw_params));
+	hw_params.fb_base = adev->gmc.fb_start;
+	hw_params.fb_offset = adev->vm_manager.vram_base_offset;
+
+	/* backdoor load firmware and trigger dmub running */
+	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
+		hw_params.load_inst_const = true;
+
+	if (dmcu)
+		hw_params.psp_version = dmcu->psp_version;
+
+	for (i = 0; i < fb_info->num_fb; ++i)
+		hw_params.fb[i] = &fb_info->fb[i];
+
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(3, 1, 3):
+	case IP_VERSION(3, 1, 4):
+		hw_params.dpia_supported = true;
+		hw_params.disable_dpia = adev->dm.dc->debug.dpia_debug.bits.disable_dpia;
+		break;
+	default:
+		break;
+	}
+
+	status = dmub_srv_hw_init(dmub_srv, &hw_params);
+	if (status != DMUB_STATUS_OK) {
+		DRM_ERROR("Error initializing DMUB HW: %d\n", status);
+		return -EINVAL;
+	}
+
+	/* Wait for firmware load to finish. */
+	status = dmub_srv_wait_for_auto_load(dmub_srv, 100000);
+	if (status != DMUB_STATUS_OK)
+		DRM_WARN("Wait for DMUB auto-load failed: %d\n", status);
+
+	/* Init DMCU and ABM if available. */
+	if (dmcu && abm) {
+		dmcu->funcs->dmcu_init(dmcu);
+		abm->dmcu_is_running = dmcu->funcs->is_dmcu_initialized(dmcu);
+	}
+
+	if (!adev->dm.dc->ctx->dmub_srv)
+		adev->dm.dc->ctx->dmub_srv = dc_dmub_srv_create(adev->dm.dc, dmub_srv);
+	if (!adev->dm.dc->ctx->dmub_srv) {
+		DRM_ERROR("Couldn't allocate DC DMUB server!\n");
+		return -ENOMEM;
+	}
+
+	DRM_INFO("DMUB hardware initialized: version=0x%08X\n",
+		 adev->dm.dmcub_fw_version);
+
+	return 0;
+}
+
+static void dm_dmub_hw_resume(struct amdgpu_device *adev)
+{
+	struct dmub_srv *dmub_srv = adev->dm.dmub_srv;
+	enum dmub_status status;
+	bool init;
+
+	if (!dmub_srv) {
+		/* DMUB isn't supported on the ASIC. */
+		return;
+	}
+
+	status = dmub_srv_is_hw_init(dmub_srv, &init);
+	if (status != DMUB_STATUS_OK)
+		DRM_WARN("DMUB hardware init check failed: %d\n", status);
+
+	if (status == DMUB_STATUS_OK && init) {
+		/* Wait for firmware load to finish. */
+		status = dmub_srv_wait_for_auto_load(dmub_srv, 100000);
+		if (status != DMUB_STATUS_OK)
+			DRM_WARN("Wait for DMUB auto-load failed: %d\n", status);
+	} else {
+		/* Perform the full hardware initialization. */
+		dm_dmub_hw_init(adev);
+	}
+}
+
+static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_addr_space_config *pa_config)
+{
+	u64 pt_base;
+	u32 logical_addr_low;
+	u32 logical_addr_high;
+	u32 agp_base, agp_bot, agp_top;
+	PHYSICAL_ADDRESS_LOC page_table_start, page_table_end, page_table_base;
+
+	memset(pa_config, 0, sizeof(*pa_config));
+
+	agp_base = 0;
+	agp_bot = adev->gmc.agp_start >> 24;
+	agp_top = adev->gmc.agp_end >> 24;
+
+	/* AGP aperture is disabled */
+	if (agp_bot == agp_top) {
+		logical_addr_low = adev->gmc.fb_start >> 18;
+		if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+			/*
+			 * Raven2 has a HW issue that it is unable to use the vram which
+			 * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
+			 * workaround that increase system aperture high address (add 1)
+			 * to get rid of the VM fault and hardware hang.
+			 */
+			logical_addr_high = (adev->gmc.fb_end >> 18) + 0x1;
+		else
+			logical_addr_high = adev->gmc.fb_end >> 18;
+	} else {
+		logical_addr_low = min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18;
+		if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+			/*
+			 * Raven2 has a HW issue that it is unable to use the vram which
+			 * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
+			 * workaround that increase system aperture high address (add 1)
+			 * to get rid of the VM fault and hardware hang.
+			 */
+			logical_addr_high = max((adev->gmc.fb_end >> 18) + 0x1, adev->gmc.agp_end >> 18);
+		else
+			logical_addr_high = max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18;
+	}
+
+	pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
+
+	page_table_start.high_part = upper_32_bits(adev->gmc.gart_start >>
+						   AMDGPU_GPU_PAGE_SHIFT);
+	page_table_start.low_part = lower_32_bits(adev->gmc.gart_start >>
+						  AMDGPU_GPU_PAGE_SHIFT);
+	page_table_end.high_part = upper_32_bits(adev->gmc.gart_end >>
+						 AMDGPU_GPU_PAGE_SHIFT);
+	page_table_end.low_part = lower_32_bits(adev->gmc.gart_end >>
+						AMDGPU_GPU_PAGE_SHIFT);
+	page_table_base.high_part = upper_32_bits(pt_base);
+	page_table_base.low_part = lower_32_bits(pt_base);
+
+	pa_config->system_aperture.start_addr = (uint64_t)logical_addr_low << 18;
+	pa_config->system_aperture.end_addr = (uint64_t)logical_addr_high << 18;
+
+	pa_config->system_aperture.agp_base = (uint64_t)agp_base << 24;
+	pa_config->system_aperture.agp_bot = (uint64_t)agp_bot << 24;
+	pa_config->system_aperture.agp_top = (uint64_t)agp_top << 24;
+
+	pa_config->system_aperture.fb_base = adev->gmc.fb_start;
+	pa_config->system_aperture.fb_offset = adev->vm_manager.vram_base_offset;
+	pa_config->system_aperture.fb_top = adev->gmc.fb_end;
+
+	pa_config->gart_config.page_table_start_addr = page_table_start.quad_part << 12;
+	pa_config->gart_config.page_table_end_addr = page_table_end.quad_part << 12;
+	pa_config->gart_config.page_table_base_addr = page_table_base.quad_part;
+
+	pa_config->is_hvm_enabled = adev->mode_info.gpu_vm_support;
+
+}
+
+static void force_connector_state(
+	struct amdgpu_dm_connector *aconnector,
+	enum drm_connector_force force_state)
+{
+	struct drm_connector *connector = &aconnector->base;
+
+	mutex_lock(&connector->dev->mode_config.mutex);
+	aconnector->base.force = force_state;
+	mutex_unlock(&connector->dev->mode_config.mutex);
+
+	mutex_lock(&aconnector->hpd_lock);
+	drm_kms_helper_connector_hotplug_event(connector);
+	mutex_unlock(&aconnector->hpd_lock);
+}
+
+static void dm_handle_hpd_rx_offload_work(struct work_struct *work)
+{
+	struct hpd_rx_irq_offload_work *offload_work;
+	struct amdgpu_dm_connector *aconnector;
+	struct dc_link *dc_link;
+	struct amdgpu_device *adev;
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	unsigned long flags;
+	union test_response test_response;
+
+	memset(&test_response, 0, sizeof(test_response));
+
+	offload_work = container_of(work, struct hpd_rx_irq_offload_work, work);
+	aconnector = offload_work->offload_wq->aconnector;
+
+	if (!aconnector) {
+		DRM_ERROR("Can't retrieve aconnector in hpd_rx_irq_offload_work");
+		goto skip;
+	}
+
+	adev = drm_to_adev(aconnector->base.dev);
+	dc_link = aconnector->dc_link;
+
+	mutex_lock(&aconnector->hpd_lock);
+	if (!dc_link_detect_connection_type(dc_link, &new_connection_type))
+		DRM_ERROR("KMS: Failed to detect connector\n");
+	mutex_unlock(&aconnector->hpd_lock);
+
+	if (new_connection_type == dc_connection_none)
+		goto skip;
+
+	if (amdgpu_in_reset(adev))
+		goto skip;
+
+	if (offload_work->data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY ||
+		offload_work->data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY) {
+		dm_handle_mst_sideband_msg_ready_event(&aconnector->mst_mgr, DOWN_OR_UP_MSG_RDY_EVENT);
+		spin_lock_irqsave(&offload_work->offload_wq->offload_lock, flags);
+		offload_work->offload_wq->is_handling_mst_msg_rdy_event = false;
+		spin_unlock_irqrestore(&offload_work->offload_wq->offload_lock, flags);
+		goto skip;
+	}
+
+	mutex_lock(&adev->dm.dc_lock);
+	if (offload_work->data.bytes.device_service_irq.bits.AUTOMATED_TEST) {
+		dc_link_dp_handle_automated_test(dc_link);
+
+		if (aconnector->timing_changed) {
+			/* force connector disconnect and reconnect */
+			force_connector_state(aconnector, DRM_FORCE_OFF);
+			msleep(100);
+			force_connector_state(aconnector, DRM_FORCE_UNSPECIFIED);
+		}
+
+		test_response.bits.ACK = 1;
+
+		core_link_write_dpcd(
+		dc_link,
+		DP_TEST_RESPONSE,
+		&test_response.raw,
+		sizeof(test_response));
+	} else if ((dc_link->connector_signal != SIGNAL_TYPE_EDP) &&
+			dc_link_check_link_loss_status(dc_link, &offload_work->data) &&
+			dc_link_dp_allow_hpd_rx_irq(dc_link)) {
+		/* offload_work->data is from handle_hpd_rx_irq->
+		 * schedule_hpd_rx_offload_work.this is defer handle
+		 * for hpd short pulse. upon here, link status may be
+		 * changed, need get latest link status from dpcd
+		 * registers. if link status is good, skip run link
+		 * training again.
+		 */
+		union hpd_irq_data irq_data;
+
+		memset(&irq_data, 0, sizeof(irq_data));
+
+		/* before dc_link_dp_handle_link_loss, allow new link lost handle
+		 * request be added to work queue if link lost at end of dc_link_
+		 * dp_handle_link_loss
+		 */
+		spin_lock_irqsave(&offload_work->offload_wq->offload_lock, flags);
+		offload_work->offload_wq->is_handling_link_loss = false;
+		spin_unlock_irqrestore(&offload_work->offload_wq->offload_lock, flags);
+
+		if ((dc_link_dp_read_hpd_rx_irq_data(dc_link, &irq_data) == DC_OK) &&
+			dc_link_check_link_loss_status(dc_link, &irq_data))
+			dc_link_dp_handle_link_loss(dc_link);
+	}
+	mutex_unlock(&adev->dm.dc_lock);
+
+skip:
+	kfree(offload_work);
+
+}
+
+static struct hpd_rx_irq_offload_work_queue *hpd_rx_irq_create_workqueue(struct dc *dc)
+{
+	int max_caps = dc->caps.max_links;
+	int i = 0;
+	struct hpd_rx_irq_offload_work_queue *hpd_rx_offload_wq = NULL;
+
+	hpd_rx_offload_wq = kcalloc(max_caps, sizeof(*hpd_rx_offload_wq), GFP_KERNEL);
+
+	if (!hpd_rx_offload_wq)
+		return NULL;
+
+
+	for (i = 0; i < max_caps; i++) {
+		hpd_rx_offload_wq[i].wq =
+				    create_singlethread_workqueue("amdgpu_dm_hpd_rx_offload_wq");
+
+		if (hpd_rx_offload_wq[i].wq == NULL) {
+			DRM_ERROR("create amdgpu_dm_hpd_rx_offload_wq fail!");
+			goto out_err;
+		}
+
+		spin_lock_init(&hpd_rx_offload_wq[i].offload_lock);
+	}
+
+	return hpd_rx_offload_wq;
+
+out_err:
+	for (i = 0; i < max_caps; i++) {
+		if (hpd_rx_offload_wq[i].wq)
+			destroy_workqueue(hpd_rx_offload_wq[i].wq);
+	}
+	kfree(hpd_rx_offload_wq);
+	return NULL;
+}
+
+struct amdgpu_stutter_quirk {
+	u16 chip_vendor;
+	u16 chip_device;
+	u16 subsys_vendor;
+	u16 subsys_device;
+	u8 revision;
+};
+
+static const struct amdgpu_stutter_quirk amdgpu_stutter_quirk_list[] = {
+	/* https://bugzilla.kernel.org/show_bug.cgi?id=214417 */
+	{ 0x1002, 0x15dd, 0x1002, 0x15dd, 0xc8 },
+	{ 0, 0, 0, 0, 0 },
+};
+
+static bool dm_should_disable_stutter(struct pci_dev *pdev)
+{
+	const struct amdgpu_stutter_quirk *p = amdgpu_stutter_quirk_list;
+
+	while (p && p->chip_device != 0) {
+		if (pdev->vendor == p->chip_vendor &&
+		    pdev->device == p->chip_device &&
+		    pdev->subsystem_vendor == p->subsys_vendor &&
+		    pdev->subsystem_device == p->subsys_device &&
+		    pdev->revision == p->revision) {
+			return true;
+		}
+		++p;
+	}
+	return false;
+}
+
+static const struct dmi_system_id hpd_disconnect_quirk_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3660"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3260"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3460"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower Plus 7010"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower 7010"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF Plus 7010"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF 7010"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro Plus 7010"),
+		},
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro 7010"),
+		},
+	},
+	{}
+	/* TODO: refactor this from a fixed table to a dynamic option */
+};
+
+static void retrieve_dmi_info(struct amdgpu_display_manager *dm)
+{
+	const struct dmi_system_id *dmi_id;
+
+	dm->aux_hpd_discon_quirk = false;
+
+	dmi_id = dmi_first_match(hpd_disconnect_quirk_table);
+	if (dmi_id) {
+		dm->aux_hpd_discon_quirk = true;
+		DRM_INFO("aux_hpd_discon_quirk attached\n");
+	}
+}
+
+static int amdgpu_dm_init(struct amdgpu_device *adev)
+{
+	struct dc_init_data init_data;
+	struct dc_callback_init init_params;
+	int r;
+
+	adev->dm.ddev = adev_to_drm(adev);
+	adev->dm.adev = adev;
+
+	/* Zero all the fields */
+	memset(&init_data, 0, sizeof(init_data));
+	memset(&init_params, 0, sizeof(init_params));
+
+	mutex_init(&adev->dm.dpia_aux_lock);
+	mutex_init(&adev->dm.dc_lock);
+	mutex_init(&adev->dm.audio_lock);
+
+	if (amdgpu_dm_irq_init(adev)) {
+		DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
+		goto error;
+	}
+
+	init_data.asic_id.chip_family = adev->family;
+
+	init_data.asic_id.pci_revision_id = adev->pdev->revision;
+	init_data.asic_id.hw_internal_rev = adev->external_rev_id;
+	init_data.asic_id.chip_id = adev->pdev->device;
+
+	init_data.asic_id.vram_width = adev->gmc.vram_width;
+	/* TODO: initialize init_data.asic_id.vram_type here!!!! */
+	init_data.asic_id.atombios_base_address =
+		adev->mode_info.atom_context->bios;
+
+	init_data.driver = adev;
+
+	adev->dm.cgs_device = amdgpu_cgs_create_device(adev);
+
+	if (!adev->dm.cgs_device) {
+		DRM_ERROR("amdgpu: failed to create cgs device.\n");
+		goto error;
+	}
+
+	init_data.cgs_device = adev->dm.cgs_device;
+
+	init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
+
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(2, 1, 0):
+		switch (adev->dm.dmcub_fw_version) {
+		case 0: /* development */
+		case 0x1: /* linux-firmware.git hash 6d9f399 */
+		case 0x01000000: /* linux-firmware.git hash 9a0b0f4 */
+			init_data.flags.disable_dmcu = false;
+			break;
+		default:
+			init_data.flags.disable_dmcu = true;
+		}
+		break;
+	case IP_VERSION(2, 0, 3):
+		init_data.flags.disable_dmcu = true;
+		break;
+	default:
+		break;
+	}
+
+	switch (adev->asic_type) {
+	case CHIP_CARRIZO:
+	case CHIP_STONEY:
+		init_data.flags.gpu_vm_support = true;
+		break;
+	default:
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(1, 0, 0):
+		case IP_VERSION(1, 0, 1):
+			/* enable S/G on PCO and RV2 */
+			if ((adev->apu_flags & AMD_APU_IS_RAVEN2) ||
+			    (adev->apu_flags & AMD_APU_IS_PICASSO))
+				init_data.flags.gpu_vm_support = true;
+			break;
+		case IP_VERSION(2, 1, 0):
+		case IP_VERSION(3, 0, 1):
+		case IP_VERSION(3, 1, 2):
+		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+			init_data.flags.gpu_vm_support = true;
+			break;
+		default:
+			break;
+		}
+		break;
+	}
+	if (init_data.flags.gpu_vm_support &&
+	    (amdgpu_sg_display == 0))
+		init_data.flags.gpu_vm_support = false;
+
+	if (init_data.flags.gpu_vm_support)
+		adev->mode_info.gpu_vm_support = true;
+
+	if (amdgpu_dc_feature_mask & DC_FBC_MASK)
+		init_data.flags.fbc_support = true;
+
+	if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK)
+		init_data.flags.multi_mon_pp_mclk_switch = true;
+
+	if (amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK)
+		init_data.flags.disable_fractional_pwm = true;
+
+	if (amdgpu_dc_feature_mask & DC_EDP_NO_POWER_SEQUENCING)
+		init_data.flags.edp_no_power_sequencing = true;
+
+	if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP1_4A)
+		init_data.flags.allow_lttpr_non_transparent_mode.bits.DP1_4A = true;
+	if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP2_0)
+		init_data.flags.allow_lttpr_non_transparent_mode.bits.DP2_0 = true;
+
+	init_data.flags.seamless_boot_edp_requested = false;
+
+	if (check_seamless_boot_capability(adev)) {
+		init_data.flags.seamless_boot_edp_requested = true;
+		init_data.flags.allow_seamless_boot_optimization = true;
+		DRM_INFO("Seamless boot condition check passed\n");
+	}
+
+	init_data.flags.enable_mipi_converter_optimization = true;
+
+	init_data.dcn_reg_offsets = adev->reg_offset[DCE_HWIP][0];
+	init_data.nbio_reg_offsets = adev->reg_offset[NBIO_HWIP][0];
+
+	INIT_LIST_HEAD(&adev->dm.da_list);
+
+	retrieve_dmi_info(&adev->dm);
+
+	/* Display Core create. */
+	adev->dm.dc = dc_create(&init_data);
+
+	if (adev->dm.dc) {
+		DRM_INFO("Display Core v%s initialized on %s\n", DC_VER,
+			 dce_version_to_string(adev->dm.dc->ctx->dce_version));
+	} else {
+		DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER);
+		goto error;
+	}
+
+	if (amdgpu_dc_debug_mask & DC_DISABLE_PIPE_SPLIT) {
+		adev->dm.dc->debug.force_single_disp_pipe_split = false;
+		adev->dm.dc->debug.pipe_split_policy = MPC_SPLIT_AVOID;
+	}
+
+	if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY)
+		adev->dm.dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true;
+	if (dm_should_disable_stutter(adev->pdev))
+		adev->dm.dc->debug.disable_stutter = true;
+
+	if (amdgpu_dc_debug_mask & DC_DISABLE_STUTTER)
+		adev->dm.dc->debug.disable_stutter = true;
+
+	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC)
+		adev->dm.dc->debug.disable_dsc = true;
+
+	if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING)
+		adev->dm.dc->debug.disable_clock_gate = true;
+
+	if (amdgpu_dc_debug_mask & DC_FORCE_SUBVP_MCLK_SWITCH)
+		adev->dm.dc->debug.force_subvp_mclk_switch = true;
+
+	adev->dm.dc->debug.visual_confirm = amdgpu_dc_visual_confirm;
+
+	/* TODO: Remove after DP2 receiver gets proper support of Cable ID feature */
+	adev->dm.dc->debug.ignore_cable_id = true;
+
+	/* TODO: There is a new drm mst change where the freedom of
+	 * vc_next_start_slot update is revoked/moved into drm, instead of in
+	 * driver. This forces us to make sure to get vc_next_start_slot updated
+	 * in drm function each time without considering if mst_state is active
+	 * or not. Otherwise, next time hotplug will give wrong start_slot
+	 * number. We are implementing a temporary solution to even notify drm
+	 * mst deallocation when link is no longer of MST type when uncommitting
+	 * the stream so we will have more time to work on a proper solution.
+	 * Ideally when dm_helpers_dp_mst_stop_top_mgr message is triggered, we
+	 * should notify drm to do a complete "reset" of its states and stop
+	 * calling further drm mst functions when link is no longer of an MST
+	 * type. This could happen when we unplug an MST hubs/displays. When
+	 * uncommit stream comes later after unplug, we should just reset
+	 * hardware states only.
+	 */
+	adev->dm.dc->debug.temp_mst_deallocation_sequence = true;
+
+	if (adev->dm.dc->caps.dp_hdmi21_pcon_support)
+		DRM_INFO("DP-HDMI FRL PCON supported\n");
+
+	r = dm_dmub_hw_init(adev);
+	if (r) {
+		DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
+		goto error;
+	}
+
+	dc_hardware_init(adev->dm.dc);
+
+	adev->dm.hpd_rx_offload_wq = hpd_rx_irq_create_workqueue(adev->dm.dc);
+	if (!adev->dm.hpd_rx_offload_wq) {
+		DRM_ERROR("amdgpu: failed to create hpd rx offload workqueue.\n");
+		goto error;
+	}
+
+	if ((adev->flags & AMD_IS_APU) && (adev->asic_type >= CHIP_CARRIZO)) {
+		struct dc_phy_addr_space_config pa_config;
+
+		mmhub_read_system_context(adev, &pa_config);
+
+		// Call the DC init_memory func
+		dc_setup_system_context(adev->dm.dc, &pa_config);
+	}
+
+	adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
+	if (!adev->dm.freesync_module) {
+		DRM_ERROR(
+		"amdgpu: failed to initialize freesync_module.\n");
+	} else
+		DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n",
+				adev->dm.freesync_module);
+
+	amdgpu_dm_init_color_mod();
+
+	if (adev->dm.dc->caps.max_links > 0) {
+		adev->dm.vblank_control_workqueue =
+			create_singlethread_workqueue("dm_vblank_control_workqueue");
+		if (!adev->dm.vblank_control_workqueue)
+			DRM_ERROR("amdgpu: failed to initialize vblank_workqueue.\n");
+	}
+
+	if (adev->dm.dc->caps.max_links > 0 && adev->family >= AMDGPU_FAMILY_RV) {
+		adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc);
+
+		if (!adev->dm.hdcp_workqueue)
+			DRM_ERROR("amdgpu: failed to initialize hdcp_workqueue.\n");
+		else
+			DRM_DEBUG_DRIVER("amdgpu: hdcp_workqueue init done %p.\n", adev->dm.hdcp_workqueue);
+
+		dc_init_callbacks(adev->dm.dc, &init_params);
+	}
+	if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
+		init_completion(&adev->dm.dmub_aux_transfer_done);
+		adev->dm.dmub_notify = kzalloc(sizeof(struct dmub_notification), GFP_KERNEL);
+		if (!adev->dm.dmub_notify) {
+			DRM_INFO("amdgpu: fail to allocate adev->dm.dmub_notify");
+			goto error;
+		}
+
+		adev->dm.delayed_hpd_wq = create_singlethread_workqueue("amdgpu_dm_hpd_wq");
+		if (!adev->dm.delayed_hpd_wq) {
+			DRM_ERROR("amdgpu: failed to create hpd offload workqueue.\n");
+			goto error;
+		}
+
+		amdgpu_dm_outbox_init(adev);
+		if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_AUX_REPLY,
+			dmub_aux_setconfig_callback, false)) {
+			DRM_ERROR("amdgpu: fail to register dmub aux callback");
+			goto error;
+		}
+		if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_HPD, dmub_hpd_callback, true)) {
+			DRM_ERROR("amdgpu: fail to register dmub hpd callback");
+			goto error;
+		}
+		if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_HPD_IRQ, dmub_hpd_callback, true)) {
+			DRM_ERROR("amdgpu: fail to register dmub hpd callback");
+			goto error;
+		}
+	}
+
+	/* Enable outbox notification only after IRQ handlers are registered and DMUB is alive.
+	 * It is expected that DMUB will resend any pending notifications at this point, for
+	 * example HPD from DPIA.
+	 */
+	if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
+		dc_enable_dmub_outbox(adev->dm.dc);
+
+		/* DPIA trace goes to dmesg logs only if outbox is enabled */
+		if (amdgpu_dc_debug_mask & DC_ENABLE_DPIA_TRACE)
+			dc_dmub_srv_enable_dpia_trace(adev->dm.dc);
+	}
+
+	if (amdgpu_dm_initialize_drm_device(adev)) {
+		DRM_ERROR(
+		"amdgpu: failed to initialize sw for display support.\n");
+		goto error;
+	}
+
+	/* create fake encoders for MST */
+	dm_dp_create_fake_mst_encoders(adev);
+
+	/* TODO: Add_display_info? */
+
+	/* TODO use dynamic cursor width */
+	adev_to_drm(adev)->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
+	adev_to_drm(adev)->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
+
+	if (drm_vblank_init(adev_to_drm(adev), adev->dm.display_indexes_num)) {
+		DRM_ERROR(
+		"amdgpu: failed to initialize sw for display support.\n");
+		goto error;
+	}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	adev->dm.secure_display_ctxs = amdgpu_dm_crtc_secure_display_create_contexts(adev);
+	if (!adev->dm.secure_display_ctxs)
+		DRM_ERROR("amdgpu: failed to initialize secure display contexts.\n");
+#endif
+
+	DRM_DEBUG_DRIVER("KMS initialized.\n");
+
+	return 0;
+error:
+	amdgpu_dm_fini(adev);
+
+	return -EINVAL;
+}
+
+static int amdgpu_dm_early_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	amdgpu_dm_audio_fini(adev);
+
+	return 0;
+}
+
+static void amdgpu_dm_fini(struct amdgpu_device *adev)
+{
+	int i;
+
+	if (adev->dm.vblank_control_workqueue) {
+		destroy_workqueue(adev->dm.vblank_control_workqueue);
+		adev->dm.vblank_control_workqueue = NULL;
+	}
+
+	amdgpu_dm_destroy_drm_device(&adev->dm);
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	if (adev->dm.secure_display_ctxs) {
+		for (i = 0; i < adev->mode_info.num_crtc; i++) {
+			if (adev->dm.secure_display_ctxs[i].crtc) {
+				flush_work(&adev->dm.secure_display_ctxs[i].notify_ta_work);
+				flush_work(&adev->dm.secure_display_ctxs[i].forward_roi_work);
+			}
+		}
+		kfree(adev->dm.secure_display_ctxs);
+		adev->dm.secure_display_ctxs = NULL;
+	}
+#endif
+	if (adev->dm.hdcp_workqueue) {
+		hdcp_destroy(&adev->dev->kobj, adev->dm.hdcp_workqueue);
+		adev->dm.hdcp_workqueue = NULL;
+	}
+
+	if (adev->dm.dc)
+		dc_deinit_callbacks(adev->dm.dc);
+
+	if (adev->dm.dc)
+		dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv);
+
+	if (dc_enable_dmub_notifications(adev->dm.dc)) {
+		kfree(adev->dm.dmub_notify);
+		adev->dm.dmub_notify = NULL;
+		destroy_workqueue(adev->dm.delayed_hpd_wq);
+		adev->dm.delayed_hpd_wq = NULL;
+	}
+
+	if (adev->dm.dmub_bo)
+		amdgpu_bo_free_kernel(&adev->dm.dmub_bo,
+				      &adev->dm.dmub_bo_gpu_addr,
+				      &adev->dm.dmub_bo_cpu_addr);
+
+	if (adev->dm.hpd_rx_offload_wq) {
+		for (i = 0; i < adev->dm.dc->caps.max_links; i++) {
+			if (adev->dm.hpd_rx_offload_wq[i].wq) {
+				destroy_workqueue(adev->dm.hpd_rx_offload_wq[i].wq);
+				adev->dm.hpd_rx_offload_wq[i].wq = NULL;
+			}
+		}
+
+		kfree(adev->dm.hpd_rx_offload_wq);
+		adev->dm.hpd_rx_offload_wq = NULL;
+	}
+
+	/* DC Destroy TODO: Replace destroy DAL */
+	if (adev->dm.dc)
+		dc_destroy(&adev->dm.dc);
+	/*
+	 * TODO: pageflip, vlank interrupt
+	 *
+	 * amdgpu_dm_irq_fini(adev);
+	 */
+
+	if (adev->dm.cgs_device) {
+		amdgpu_cgs_destroy_device(adev->dm.cgs_device);
+		adev->dm.cgs_device = NULL;
+	}
+	if (adev->dm.freesync_module) {
+		mod_freesync_destroy(adev->dm.freesync_module);
+		adev->dm.freesync_module = NULL;
+	}
+
+	mutex_destroy(&adev->dm.audio_lock);
+	mutex_destroy(&adev->dm.dc_lock);
+	mutex_destroy(&adev->dm.dpia_aux_lock);
+}
+
+static int load_dmcu_fw(struct amdgpu_device *adev)
+{
+	const char *fw_name_dmcu = NULL;
+	int r;
+	const struct dmcu_firmware_header_v1_0 *hdr;
+
+	switch (adev->asic_type) {
+#if defined(CONFIG_DRM_AMD_DC_SI)
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_VERDE:
+	case CHIP_OLAND:
+#endif
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+	case CHIP_KAVERI:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+	case CHIP_TONGA:
+	case CHIP_FIJI:
+	case CHIP_CARRIZO:
+	case CHIP_STONEY:
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS10:
+	case CHIP_POLARIS12:
+	case CHIP_VEGAM:
+	case CHIP_VEGA10:
+	case CHIP_VEGA12:
+	case CHIP_VEGA20:
+		return 0;
+	case CHIP_NAVI12:
+		fw_name_dmcu = FIRMWARE_NAVI12_DMCU;
+		break;
+	case CHIP_RAVEN:
+		if (ASICREV_IS_PICASSO(adev->external_rev_id))
+			fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
+		else if (ASICREV_IS_RAVEN2(adev->external_rev_id))
+			fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
+		else
+			return 0;
+		break;
+	default:
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(2, 0, 2):
+		case IP_VERSION(2, 0, 3):
+		case IP_VERSION(2, 0, 0):
+		case IP_VERSION(2, 1, 0):
+		case IP_VERSION(3, 0, 0):
+		case IP_VERSION(3, 0, 2):
+		case IP_VERSION(3, 0, 3):
+		case IP_VERSION(3, 0, 1):
+		case IP_VERSION(3, 1, 2):
+		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			return 0;
+		default:
+			break;
+		}
+		DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
+		return -EINVAL;
+	}
+
+	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
+		DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n");
+		return 0;
+	}
+
+	r = amdgpu_ucode_request(adev, &adev->dm.fw_dmcu, fw_name_dmcu);
+	if (r == -ENODEV) {
+		/* DMCU firmware is not necessary, so don't raise a fuss if it's missing */
+		DRM_DEBUG_KMS("dm: DMCU firmware not found\n");
+		adev->dm.fw_dmcu = NULL;
+		return 0;
+	}
+	if (r) {
+		dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n",
+			fw_name_dmcu);
+		amdgpu_ucode_release(&adev->dm.fw_dmcu);
+		return r;
+	}
+
+	hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data;
+	adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM;
+	adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu;
+	adev->firmware.fw_size +=
+		ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
+
+	adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV;
+	adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu;
+	adev->firmware.fw_size +=
+		ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
+
+	adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version);
+
+	DRM_DEBUG_KMS("PSP loading DMCU firmware\n");
+
+	return 0;
+}
+
+static uint32_t amdgpu_dm_dmub_reg_read(void *ctx, uint32_t address)
+{
+	struct amdgpu_device *adev = ctx;
+
+	return dm_read_reg(adev->dm.dc->ctx, address);
+}
+
+static void amdgpu_dm_dmub_reg_write(void *ctx, uint32_t address,
+				     uint32_t value)
+{
+	struct amdgpu_device *adev = ctx;
+
+	return dm_write_reg(adev->dm.dc->ctx, address, value);
+}
+
+static int dm_dmub_sw_init(struct amdgpu_device *adev)
+{
+	struct dmub_srv_create_params create_params;
+	struct dmub_srv_region_params region_params;
+	struct dmub_srv_region_info region_info;
+	struct dmub_srv_memory_params memory_params;
+	struct dmub_srv_fb_info *fb_info;
+	struct dmub_srv *dmub_srv;
+	const struct dmcub_firmware_header_v1_0 *hdr;
+	enum dmub_asic dmub_asic;
+	enum dmub_status status;
+	int r;
+
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(2, 1, 0):
+		dmub_asic = DMUB_ASIC_DCN21;
+		break;
+	case IP_VERSION(3, 0, 0):
+		dmub_asic = DMUB_ASIC_DCN30;
+		break;
+	case IP_VERSION(3, 0, 1):
+		dmub_asic = DMUB_ASIC_DCN301;
+		break;
+	case IP_VERSION(3, 0, 2):
+		dmub_asic = DMUB_ASIC_DCN302;
+		break;
+	case IP_VERSION(3, 0, 3):
+		dmub_asic = DMUB_ASIC_DCN303;
+		break;
+	case IP_VERSION(3, 1, 2):
+	case IP_VERSION(3, 1, 3):
+		dmub_asic = (adev->external_rev_id == YELLOW_CARP_B0) ? DMUB_ASIC_DCN31B : DMUB_ASIC_DCN31;
+		break;
+	case IP_VERSION(3, 1, 4):
+		dmub_asic = DMUB_ASIC_DCN314;
+		break;
+	case IP_VERSION(3, 1, 5):
+		dmub_asic = DMUB_ASIC_DCN315;
+		break;
+	case IP_VERSION(3, 1, 6):
+		dmub_asic = DMUB_ASIC_DCN316;
+		break;
+	case IP_VERSION(3, 2, 0):
+		dmub_asic = DMUB_ASIC_DCN32;
+		break;
+	case IP_VERSION(3, 2, 1):
+		dmub_asic = DMUB_ASIC_DCN321;
+		break;
+	default:
+		/* ASIC doesn't support DMUB. */
+		return 0;
+	}
+
+	hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data;
+	adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version);
+
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].ucode_id =
+			AMDGPU_UCODE_ID_DMCUB;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].fw =
+			adev->dm.dmub_fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(hdr->inst_const_bytes), PAGE_SIZE);
+
+		DRM_INFO("Loading DMUB firmware via PSP: version=0x%08X\n",
+			 adev->dm.dmcub_fw_version);
+	}
+
+
+	adev->dm.dmub_srv = kzalloc(sizeof(*adev->dm.dmub_srv), GFP_KERNEL);
+	dmub_srv = adev->dm.dmub_srv;
+
+	if (!dmub_srv) {
+		DRM_ERROR("Failed to allocate DMUB service!\n");
+		return -ENOMEM;
+	}
+
+	memset(&create_params, 0, sizeof(create_params));
+	create_params.user_ctx = adev;
+	create_params.funcs.reg_read = amdgpu_dm_dmub_reg_read;
+	create_params.funcs.reg_write = amdgpu_dm_dmub_reg_write;
+	create_params.asic = dmub_asic;
+
+	/* Create the DMUB service. */
+	status = dmub_srv_create(dmub_srv, &create_params);
+	if (status != DMUB_STATUS_OK) {
+		DRM_ERROR("Error creating DMUB service: %d\n", status);
+		return -EINVAL;
+	}
+
+	/* Calculate the size of all the regions for the DMUB service. */
+	memset(&region_params, 0, sizeof(region_params));
+
+	region_params.inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
+					PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
+	region_params.bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
+	region_params.vbios_size = adev->bios_size;
+	region_params.fw_bss_data = region_params.bss_data_size ?
+		adev->dm.dmub_fw->data +
+		le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
+		le32_to_cpu(hdr->inst_const_bytes) : NULL;
+	region_params.fw_inst_const =
+		adev->dm.dmub_fw->data +
+		le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
+		PSP_HEADER_BYTES;
+	region_params.is_mailbox_in_inbox = false;
+
+	status = dmub_srv_calc_region_info(dmub_srv, &region_params,
+					   &region_info);
+
+	if (status != DMUB_STATUS_OK) {
+		DRM_ERROR("Error calculating DMUB region info: %d\n", status);
+		return -EINVAL;
+	}
+
+	/*
+	 * Allocate a framebuffer based on the total size of all the regions.
+	 * TODO: Move this into GART.
+	 */
+	r = amdgpu_bo_create_kernel(adev, region_info.fb_size, PAGE_SIZE,
+				    AMDGPU_GEM_DOMAIN_VRAM |
+				    AMDGPU_GEM_DOMAIN_GTT,
+				    &adev->dm.dmub_bo,
+				    &adev->dm.dmub_bo_gpu_addr,
+				    &adev->dm.dmub_bo_cpu_addr);
+	if (r)
+		return r;
+
+	/* Rebase the regions on the framebuffer address. */
+	memset(&memory_params, 0, sizeof(memory_params));
+	memory_params.cpu_fb_addr = adev->dm.dmub_bo_cpu_addr;
+	memory_params.gpu_fb_addr = adev->dm.dmub_bo_gpu_addr;
+	memory_params.region_info = &region_info;
+
+	adev->dm.dmub_fb_info =
+		kzalloc(sizeof(*adev->dm.dmub_fb_info), GFP_KERNEL);
+	fb_info = adev->dm.dmub_fb_info;
+
+	if (!fb_info) {
+		DRM_ERROR(
+			"Failed to allocate framebuffer info for DMUB service!\n");
+		return -ENOMEM;
+	}
+
+	status = dmub_srv_calc_mem_info(dmub_srv, &memory_params, fb_info);
+	if (status != DMUB_STATUS_OK) {
+		DRM_ERROR("Error calculating DMUB FB info: %d\n", status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int dm_sw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int r;
+
+	r = dm_dmub_sw_init(adev);
+	if (r)
+		return r;
+
+	return load_dmcu_fw(adev);
+}
+
+static int dm_sw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	kfree(adev->dm.dmub_fb_info);
+	adev->dm.dmub_fb_info = NULL;
+
+	if (adev->dm.dmub_srv) {
+		dmub_srv_destroy(adev->dm.dmub_srv);
+		adev->dm.dmub_srv = NULL;
+	}
+
+	amdgpu_ucode_release(&adev->dm.dmub_fw);
+	amdgpu_ucode_release(&adev->dm.fw_dmcu);
+
+	return 0;
+}
+
+static int detect_mst_link_for_all_connectors(struct drm_device *dev)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	int ret = 0;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (aconnector->dc_link->type == dc_connection_mst_branch &&
+		    aconnector->mst_mgr.aux) {
+			DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n",
+					 aconnector,
+					 aconnector->base.base.id);
+
+			ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
+			if (ret < 0) {
+				DRM_ERROR("DM_MST: Failed to start MST\n");
+				aconnector->dc_link->type =
+					dc_connection_single;
+				ret = dm_helpers_dp_mst_stop_top_mgr(aconnector->dc_link->ctx,
+								     aconnector->dc_link);
+				break;
+			}
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+
+	return ret;
+}
+
+static int dm_late_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	struct dmcu_iram_parameters params;
+	unsigned int linear_lut[16];
+	int i;
+	struct dmcu *dmcu = NULL;
+
+	dmcu = adev->dm.dc->res_pool->dmcu;
+
+	for (i = 0; i < 16; i++)
+		linear_lut[i] = 0xFFFF * i / 15;
+
+	params.set = 0;
+	params.backlight_ramping_override = false;
+	params.backlight_ramping_start = 0xCCCC;
+	params.backlight_ramping_reduction = 0xCCCCCCCC;
+	params.backlight_lut_array_size = 16;
+	params.backlight_lut_array = linear_lut;
+
+	/* Min backlight level after ABM reduction,  Don't allow below 1%
+	 * 0xFFFF x 0.01 = 0x28F
+	 */
+	params.min_abm_backlight = 0x28F;
+	/* In the case where abm is implemented on dmcub,
+	 * dmcu object will be null.
+	 * ABM 2.4 and up are implemented on dmcub.
+	 */
+	if (dmcu) {
+		if (!dmcu_load_iram(dmcu, params))
+			return -EINVAL;
+	} else if (adev->dm.dc->ctx->dmub_srv) {
+		struct dc_link *edp_links[MAX_NUM_EDP];
+		int edp_num;
+
+		dc_get_edp_links(adev->dm.dc, edp_links, &edp_num);
+		for (i = 0; i < edp_num; i++) {
+			if (!dmub_init_abm_config(adev->dm.dc->res_pool, params, i))
+				return -EINVAL;
+		}
+	}
+
+	return detect_mst_link_for_all_connectors(adev_to_drm(adev));
+}
+
+static void resume_mst_branch_status(struct drm_dp_mst_topology_mgr *mgr)
+{
+	int ret;
+	u8 guid[16];
+	u64 tmp64;
+
+	mutex_lock(&mgr->lock);
+	if (!mgr->mst_primary)
+		goto out_fail;
+
+	if (drm_dp_read_dpcd_caps(mgr->aux, mgr->dpcd) < 0) {
+		drm_dbg_kms(mgr->dev, "dpcd read failed - undocked during suspend?\n");
+		goto out_fail;
+	}
+
+	ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL,
+				 DP_MST_EN |
+				 DP_UP_REQ_EN |
+				 DP_UPSTREAM_IS_SRC);
+	if (ret < 0) {
+		drm_dbg_kms(mgr->dev, "mst write failed - undocked during suspend?\n");
+		goto out_fail;
+	}
+
+	/* Some hubs forget their guids after they resume */
+	ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, guid, 16);
+	if (ret != 16) {
+		drm_dbg_kms(mgr->dev, "dpcd read failed - undocked during suspend?\n");
+		goto out_fail;
+	}
+
+	if (memchr_inv(guid, 0, 16) == NULL) {
+		tmp64 = get_jiffies_64();
+		memcpy(&guid[0], &tmp64, sizeof(u64));
+		memcpy(&guid[8], &tmp64, sizeof(u64));
+
+		ret = drm_dp_dpcd_write(mgr->aux, DP_GUID, guid, 16);
+
+		if (ret != 16) {
+			drm_dbg_kms(mgr->dev, "check mstb guid failed - undocked during suspend?\n");
+			goto out_fail;
+		}
+	}
+
+	memcpy(mgr->mst_primary->guid, guid, 16);
+
+out_fail:
+	mutex_unlock(&mgr->lock);
+}
+
+static void s3_handle_mst(struct drm_device *dev, bool suspend)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	struct drm_dp_mst_topology_mgr *mgr;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (aconnector->dc_link->type != dc_connection_mst_branch ||
+		    aconnector->mst_root)
+			continue;
+
+		mgr = &aconnector->mst_mgr;
+
+		if (suspend) {
+			drm_dp_mst_topology_mgr_suspend(mgr);
+		} else {
+			/* if extended timeout is supported in hardware,
+			 * default to LTTPR timeout (3.2ms) first as a W/A for DP link layer
+			 * CTS 4.2.1.1 regression introduced by CTS specs requirement update.
+			 */
+			try_to_configure_aux_timeout(aconnector->dc_link->ddc, LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD);
+			if (!dp_is_lttpr_present(aconnector->dc_link))
+				try_to_configure_aux_timeout(aconnector->dc_link->ddc, LINK_AUX_DEFAULT_TIMEOUT_PERIOD);
+
+			/* TODO: move resume_mst_branch_status() into drm mst resume again
+			 * once topology probing work is pulled out from mst resume into mst
+			 * resume 2nd step. mst resume 2nd step should be called after old
+			 * state getting restored (i.e. drm_atomic_helper_resume()).
+			 */
+			resume_mst_branch_status(mgr);
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+}
+
+static int amdgpu_dm_smu_write_watermarks_table(struct amdgpu_device *adev)
+{
+	int ret = 0;
+
+	/* This interface is for dGPU Navi1x.Linux dc-pplib interface depends
+	 * on window driver dc implementation.
+	 * For Navi1x, clock settings of dcn watermarks are fixed. the settings
+	 * should be passed to smu during boot up and resume from s3.
+	 * boot up: dc calculate dcn watermark clock settings within dc_create,
+	 * dcn20_resource_construct
+	 * then call pplib functions below to pass the settings to smu:
+	 * smu_set_watermarks_for_clock_ranges
+	 * smu_set_watermarks_table
+	 * navi10_set_watermarks_table
+	 * smu_write_watermarks_table
+	 *
+	 * For Renoir, clock settings of dcn watermark are also fixed values.
+	 * dc has implemented different flow for window driver:
+	 * dc_hardware_init / dc_set_power_state
+	 * dcn10_init_hw
+	 * notify_wm_ranges
+	 * set_wm_ranges
+	 * -- Linux
+	 * smu_set_watermarks_for_clock_ranges
+	 * renoir_set_watermarks_table
+	 * smu_write_watermarks_table
+	 *
+	 * For Linux,
+	 * dc_hardware_init -> amdgpu_dm_init
+	 * dc_set_power_state --> dm_resume
+	 *
+	 * therefore, this function apply to navi10/12/14 but not Renoir
+	 * *
+	 */
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(2, 0, 2):
+	case IP_VERSION(2, 0, 0):
+		break;
+	default:
+		return 0;
+	}
+
+	ret = amdgpu_dpm_write_watermarks_table(adev);
+	if (ret) {
+		DRM_ERROR("Failed to update WMTABLE!\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * dm_hw_init() - Initialize DC device
+ * @handle: The base driver device containing the amdgpu_dm device.
+ *
+ * Initialize the &struct amdgpu_display_manager device. This involves calling
+ * the initializers of each DM component, then populating the struct with them.
+ *
+ * Although the function implies hardware initialization, both hardware and
+ * software are initialized here. Splitting them out to their relevant init
+ * hooks is a future TODO item.
+ *
+ * Some notable things that are initialized here:
+ *
+ * - Display Core, both software and hardware
+ * - DC modules that we need (freesync and color management)
+ * - DRM software states
+ * - Interrupt sources and handlers
+ * - Vblank support
+ * - Debug FS entries, if enabled
+ */
+static int dm_hw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	/* Create DAL display manager */
+	amdgpu_dm_init(adev);
+	amdgpu_dm_hpd_init(adev);
+
+	return 0;
+}
+
+/**
+ * dm_hw_fini() - Teardown DC device
+ * @handle: The base driver device containing the amdgpu_dm device.
+ *
+ * Teardown components within &struct amdgpu_display_manager that require
+ * cleanup. This involves cleaning up the DRM device, DC, and any modules that
+ * were loaded. Also flush IRQ workqueues and disable them.
+ */
+static int dm_hw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	amdgpu_dm_hpd_fini(adev);
+
+	amdgpu_dm_irq_fini(adev);
+	amdgpu_dm_fini(adev);
+	return 0;
+}
+
+
+static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev,
+				 struct dc_state *state, bool enable)
+{
+	enum dc_irq_source irq_source;
+	struct amdgpu_crtc *acrtc;
+	int rc = -EBUSY;
+	int i = 0;
+
+	for (i = 0; i < state->stream_count; i++) {
+		acrtc = get_crtc_by_otg_inst(
+				adev, state->stream_status[i].primary_otg_inst);
+
+		if (acrtc && state->stream_status[i].plane_count != 0) {
+			irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst;
+			rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
+			if (rc)
+				DRM_WARN("Failed to %s pflip interrupts\n",
+					 enable ? "enable" : "disable");
+
+			if (enable) {
+				if (amdgpu_dm_crtc_vrr_active(to_dm_crtc_state(acrtc->base.state)))
+					rc = amdgpu_dm_crtc_set_vupdate_irq(&acrtc->base, true);
+			} else
+				rc = amdgpu_dm_crtc_set_vupdate_irq(&acrtc->base, false);
+
+			if (rc)
+				DRM_WARN("Failed to %sable vupdate interrupt\n", enable ? "en" : "dis");
+
+			irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
+			/* During gpu-reset we disable and then enable vblank irq, so
+			 * don't use amdgpu_irq_get/put() to avoid refcount change.
+			 */
+			if (!dc_interrupt_set(adev->dm.dc, irq_source, enable))
+				DRM_WARN("Failed to %sable vblank interrupt\n", enable ? "en" : "dis");
+		}
+	}
+
+}
+
+static enum dc_status amdgpu_dm_commit_zero_streams(struct dc *dc)
+{
+	struct dc_state *context = NULL;
+	enum dc_status res = DC_ERROR_UNEXPECTED;
+	int i;
+	struct dc_stream_state *del_streams[MAX_PIPES];
+	int del_streams_count = 0;
+
+	memset(del_streams, 0, sizeof(del_streams));
+
+	context = dc_create_state(dc);
+	if (context == NULL)
+		goto context_alloc_fail;
+
+	dc_resource_state_copy_construct_current(dc, context);
+
+	/* First remove from context all streams */
+	for (i = 0; i < context->stream_count; i++) {
+		struct dc_stream_state *stream = context->streams[i];
+
+		del_streams[del_streams_count++] = stream;
+	}
+
+	/* Remove all planes for removed streams and then remove the streams */
+	for (i = 0; i < del_streams_count; i++) {
+		if (!dc_rem_all_planes_for_stream(dc, del_streams[i], context)) {
+			res = DC_FAIL_DETACH_SURFACES;
+			goto fail;
+		}
+
+		res = dc_remove_stream_from_ctx(dc, context, del_streams[i]);
+		if (res != DC_OK)
+			goto fail;
+	}
+
+	res = dc_commit_streams(dc, context->streams, context->stream_count);
+
+fail:
+	dc_release_state(context);
+
+context_alloc_fail:
+	return res;
+}
+
+static void hpd_rx_irq_work_suspend(struct amdgpu_display_manager *dm)
+{
+	int i;
+
+	if (dm->hpd_rx_offload_wq) {
+		for (i = 0; i < dm->dc->caps.max_links; i++)
+			flush_workqueue(dm->hpd_rx_offload_wq[i].wq);
+	}
+}
+
+static int dm_suspend(void *handle)
+{
+	struct amdgpu_device *adev = handle;
+	struct amdgpu_display_manager *dm = &adev->dm;
+	int ret = 0;
+
+	if (amdgpu_in_reset(adev)) {
+		mutex_lock(&dm->dc_lock);
+
+		dc_allow_idle_optimizations(adev->dm.dc, false);
+
+		dm->cached_dc_state = dc_copy_state(dm->dc->current_state);
+
+		dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false);
+
+		amdgpu_dm_commit_zero_streams(dm->dc);
+
+		amdgpu_dm_irq_suspend(adev);
+
+		hpd_rx_irq_work_suspend(dm);
+
+		return ret;
+	}
+
+	WARN_ON(adev->dm.cached_state);
+	adev->dm.cached_state = drm_atomic_helper_suspend(adev_to_drm(adev));
+
+	s3_handle_mst(adev_to_drm(adev), true);
+
+	amdgpu_dm_irq_suspend(adev);
+
+	hpd_rx_irq_work_suspend(dm);
+
+	dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
+
+	return 0;
+}
+
+struct amdgpu_dm_connector *
+amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
+					     struct drm_crtc *crtc)
+{
+	u32 i;
+	struct drm_connector_state *new_con_state;
+	struct drm_connector *connector;
+	struct drm_crtc *crtc_from_state;
+
+	for_each_new_connector_in_state(state, connector, new_con_state, i) {
+		crtc_from_state = new_con_state->crtc;
+
+		if (crtc_from_state == crtc)
+			return to_amdgpu_dm_connector(connector);
+	}
+
+	return NULL;
+}
+
+static void emulated_link_detect(struct dc_link *link)
+{
+	struct dc_sink_init_data sink_init_data = { 0 };
+	struct display_sink_capability sink_caps = { 0 };
+	enum dc_edid_status edid_status;
+	struct dc_context *dc_ctx = link->ctx;
+	struct dc_sink *sink = NULL;
+	struct dc_sink *prev_sink = NULL;
+
+	link->type = dc_connection_none;
+	prev_sink = link->local_sink;
+
+	if (prev_sink)
+		dc_sink_release(prev_sink);
+
+	switch (link->connector_signal) {
+	case SIGNAL_TYPE_HDMI_TYPE_A: {
+		sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
+		sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A;
+		break;
+	}
+
+	case SIGNAL_TYPE_DVI_SINGLE_LINK: {
+		sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
+		sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
+		break;
+	}
+
+	case SIGNAL_TYPE_DVI_DUAL_LINK: {
+		sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
+		sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+		break;
+	}
+
+	case SIGNAL_TYPE_LVDS: {
+		sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
+		sink_caps.signal = SIGNAL_TYPE_LVDS;
+		break;
+	}
+
+	case SIGNAL_TYPE_EDP: {
+		sink_caps.transaction_type =
+			DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
+		sink_caps.signal = SIGNAL_TYPE_EDP;
+		break;
+	}
+
+	case SIGNAL_TYPE_DISPLAY_PORT: {
+		sink_caps.transaction_type =
+			DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
+		sink_caps.signal = SIGNAL_TYPE_VIRTUAL;
+		break;
+	}
+
+	default:
+		DC_ERROR("Invalid connector type! signal:%d\n",
+			link->connector_signal);
+		return;
+	}
+
+	sink_init_data.link = link;
+	sink_init_data.sink_signal = sink_caps.signal;
+
+	sink = dc_sink_create(&sink_init_data);
+	if (!sink) {
+		DC_ERROR("Failed to create sink!\n");
+		return;
+	}
+
+	/* dc_sink_create returns a new reference */
+	link->local_sink = sink;
+
+	edid_status = dm_helpers_read_local_edid(
+			link->ctx,
+			link,
+			sink);
+
+	if (edid_status != EDID_OK)
+		DC_ERROR("Failed to read EDID");
+
+}
+
+static void dm_gpureset_commit_state(struct dc_state *dc_state,
+				     struct amdgpu_display_manager *dm)
+{
+	struct {
+		struct dc_surface_update surface_updates[MAX_SURFACES];
+		struct dc_plane_info plane_infos[MAX_SURFACES];
+		struct dc_scaling_info scaling_infos[MAX_SURFACES];
+		struct dc_flip_addrs flip_addrs[MAX_SURFACES];
+		struct dc_stream_update stream_update;
+	} *bundle;
+	int k, m;
+
+	bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
+
+	if (!bundle) {
+		dm_error("Failed to allocate update bundle\n");
+		goto cleanup;
+	}
+
+	for (k = 0; k < dc_state->stream_count; k++) {
+		bundle->stream_update.stream = dc_state->streams[k];
+
+		for (m = 0; m < dc_state->stream_status->plane_count; m++) {
+			bundle->surface_updates[m].surface =
+				dc_state->stream_status->plane_states[m];
+			bundle->surface_updates[m].surface->force_full_update =
+				true;
+		}
+
+		update_planes_and_stream_adapter(dm->dc,
+					 UPDATE_TYPE_FULL,
+					 dc_state->stream_status->plane_count,
+					 dc_state->streams[k],
+					 &bundle->stream_update,
+					 bundle->surface_updates);
+	}
+
+cleanup:
+	kfree(bundle);
+}
+
+static int dm_resume(void *handle)
+{
+	struct amdgpu_device *adev = handle;
+	struct drm_device *ddev = adev_to_drm(adev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *new_crtc_state;
+	struct dm_crtc_state *dm_new_crtc_state;
+	struct drm_plane *plane;
+	struct drm_plane_state *new_plane_state;
+	struct dm_plane_state *dm_new_plane_state;
+	struct dm_atomic_state *dm_state = to_dm_atomic_state(dm->atomic_obj.state);
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	struct dc_state *dc_state;
+	int i, r, j, ret;
+	bool need_hotplug = false;
+
+	if (amdgpu_in_reset(adev)) {
+		dc_state = dm->cached_dc_state;
+
+		/*
+		 * The dc->current_state is backed up into dm->cached_dc_state
+		 * before we commit 0 streams.
+		 *
+		 * DC will clear link encoder assignments on the real state
+		 * but the changes won't propagate over to the copy we made
+		 * before the 0 streams commit.
+		 *
+		 * DC expects that link encoder assignments are *not* valid
+		 * when committing a state, so as a workaround we can copy
+		 * off of the current state.
+		 *
+		 * We lose the previous assignments, but we had already
+		 * commit 0 streams anyway.
+		 */
+		link_enc_cfg_copy(adev->dm.dc->current_state, dc_state);
+
+		r = dm_dmub_hw_init(adev);
+		if (r)
+			DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
+
+		dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
+		dc_resume(dm->dc);
+
+		amdgpu_dm_irq_resume_early(adev);
+
+		for (i = 0; i < dc_state->stream_count; i++) {
+			dc_state->streams[i]->mode_changed = true;
+			for (j = 0; j < dc_state->stream_status[i].plane_count; j++) {
+				dc_state->stream_status[i].plane_states[j]->update_flags.raw
+					= 0xffffffff;
+			}
+		}
+
+		if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
+			amdgpu_dm_outbox_init(adev);
+			dc_enable_dmub_outbox(adev->dm.dc);
+		}
+
+		WARN_ON(!dc_commit_streams(dm->dc, dc_state->streams, dc_state->stream_count));
+
+		dm_gpureset_commit_state(dm->cached_dc_state, dm);
+
+		dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, true);
+
+		dc_release_state(dm->cached_dc_state);
+		dm->cached_dc_state = NULL;
+
+		amdgpu_dm_irq_resume_late(adev);
+
+		mutex_unlock(&dm->dc_lock);
+
+		return 0;
+	}
+	/* Recreate dc_state - DC invalidates it when setting power state to S3. */
+	dc_release_state(dm_state->context);
+	dm_state->context = dc_create_state(dm->dc);
+	/* TODO: Remove dc_state->dccg, use dc->dccg directly. */
+	dc_resource_state_construct(dm->dc, dm_state->context);
+
+	/* Before powering on DC we need to re-initialize DMUB. */
+	dm_dmub_hw_resume(adev);
+
+	/* Re-enable outbox interrupts for DPIA. */
+	if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
+		amdgpu_dm_outbox_init(adev);
+		dc_enable_dmub_outbox(adev->dm.dc);
+	}
+
+	/* power on hardware */
+	dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
+
+	/* program HPD filter */
+	dc_resume(dm->dc);
+
+	/*
+	 * early enable HPD Rx IRQ, should be done before set mode as short
+	 * pulse interrupts are used for MST
+	 */
+	amdgpu_dm_irq_resume_early(adev);
+
+	/* On resume we need to rewrite the MSTM control bits to enable MST*/
+	s3_handle_mst(ddev, false);
+
+	/* Do detection*/
+	drm_connector_list_iter_begin(ddev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		if (!aconnector->dc_link)
+			continue;
+
+		/*
+		 * this is the case when traversing through already created end sink
+		 * MST connectors, should be skipped
+		 */
+		if (aconnector && aconnector->mst_root)
+			continue;
+
+		mutex_lock(&aconnector->hpd_lock);
+		if (!dc_link_detect_connection_type(aconnector->dc_link, &new_connection_type))
+			DRM_ERROR("KMS: Failed to detect connector\n");
+
+		if (aconnector->base.force && new_connection_type == dc_connection_none) {
+			emulated_link_detect(aconnector->dc_link);
+		} else {
+			mutex_lock(&dm->dc_lock);
+			dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
+			mutex_unlock(&dm->dc_lock);
+		}
+
+		if (aconnector->fake_enable && aconnector->dc_link->local_sink)
+			aconnector->fake_enable = false;
+
+		if (aconnector->dc_sink)
+			dc_sink_release(aconnector->dc_sink);
+		aconnector->dc_sink = NULL;
+		amdgpu_dm_update_connector_after_detect(aconnector);
+		mutex_unlock(&aconnector->hpd_lock);
+	}
+	drm_connector_list_iter_end(&iter);
+
+	/* Force mode set in atomic commit */
+	for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i)
+		new_crtc_state->active_changed = true;
+
+	/*
+	 * atomic_check is expected to create the dc states. We need to release
+	 * them here, since they were duplicated as part of the suspend
+	 * procedure.
+	 */
+	for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) {
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+		if (dm_new_crtc_state->stream) {
+			WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1);
+			dc_stream_release(dm_new_crtc_state->stream);
+			dm_new_crtc_state->stream = NULL;
+		}
+	}
+
+	for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) {
+		dm_new_plane_state = to_dm_plane_state(new_plane_state);
+		if (dm_new_plane_state->dc_state) {
+			WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1);
+			dc_plane_state_release(dm_new_plane_state->dc_state);
+			dm_new_plane_state->dc_state = NULL;
+		}
+	}
+
+	drm_atomic_helper_resume(ddev, dm->cached_state);
+
+	dm->cached_state = NULL;
+
+	/* Do mst topology probing after resuming cached state*/
+	drm_connector_list_iter_begin(ddev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (aconnector->dc_link->type != dc_connection_mst_branch ||
+		    aconnector->mst_root)
+			continue;
+
+		ret = drm_dp_mst_topology_mgr_resume(&aconnector->mst_mgr, true);
+
+		if (ret < 0) {
+			dm_helpers_dp_mst_stop_top_mgr(aconnector->dc_link->ctx,
+					aconnector->dc_link);
+			need_hotplug = true;
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+
+	if (need_hotplug)
+		drm_kms_helper_hotplug_event(ddev);
+
+	amdgpu_dm_irq_resume_late(adev);
+
+	amdgpu_dm_smu_write_watermarks_table(adev);
+
+	return 0;
+}
+
+/**
+ * DOC: DM Lifecycle
+ *
+ * DM (and consequently DC) is registered in the amdgpu base driver as a IP
+ * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to
+ * the base driver's device list to be initialized and torn down accordingly.
+ *
+ * The functions to do so are provided as hooks in &struct amd_ip_funcs.
+ */
+
+static const struct amd_ip_funcs amdgpu_dm_funcs = {
+	.name = "dm",
+	.early_init = dm_early_init,
+	.late_init = dm_late_init,
+	.sw_init = dm_sw_init,
+	.sw_fini = dm_sw_fini,
+	.early_fini = amdgpu_dm_early_fini,
+	.hw_init = dm_hw_init,
+	.hw_fini = dm_hw_fini,
+	.suspend = dm_suspend,
+	.resume = dm_resume,
+	.is_idle = dm_is_idle,
+	.wait_for_idle = dm_wait_for_idle,
+	.check_soft_reset = dm_check_soft_reset,
+	.soft_reset = dm_soft_reset,
+	.set_clockgating_state = dm_set_clockgating_state,
+	.set_powergating_state = dm_set_powergating_state,
+};
+
+const struct amdgpu_ip_block_version dm_ip_block = {
+	.type = AMD_IP_BLOCK_TYPE_DCE,
+	.major = 1,
+	.minor = 0,
+	.rev = 0,
+	.funcs = &amdgpu_dm_funcs,
+};
+
+
+/**
+ * DOC: atomic
+ *
+ * *WIP*
+ */
+
+static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = {
+	.fb_create = amdgpu_display_user_framebuffer_create,
+	.get_format_info = amdgpu_dm_plane_get_format_info,
+	.atomic_check = amdgpu_dm_atomic_check,
+	.atomic_commit = drm_atomic_helper_commit,
+};
+
+static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
+	.atomic_commit_tail = amdgpu_dm_atomic_commit_tail,
+	.atomic_commit_setup = drm_dp_mst_atomic_setup_commit,
+};
+
+static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
+{
+	struct amdgpu_dm_backlight_caps *caps;
+	struct drm_connector *conn_base;
+	struct amdgpu_device *adev;
+	struct drm_luminance_range_info *luminance_range;
+
+	if (aconnector->bl_idx == -1 ||
+	    aconnector->dc_link->connector_signal != SIGNAL_TYPE_EDP)
+		return;
+
+	conn_base = &aconnector->base;
+	adev = drm_to_adev(conn_base->dev);
+
+	caps = &adev->dm.backlight_caps[aconnector->bl_idx];
+	caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps;
+	caps->aux_support = false;
+
+	if (caps->ext_caps->bits.oled == 1
+	    /*
+	     * ||
+	     * caps->ext_caps->bits.sdr_aux_backlight_control == 1 ||
+	     * caps->ext_caps->bits.hdr_aux_backlight_control == 1
+	     */)
+		caps->aux_support = true;
+
+	if (amdgpu_backlight == 0)
+		caps->aux_support = false;
+	else if (amdgpu_backlight == 1)
+		caps->aux_support = true;
+
+	luminance_range = &conn_base->display_info.luminance_range;
+
+	if (luminance_range->max_luminance) {
+		caps->aux_min_input_signal = luminance_range->min_luminance;
+		caps->aux_max_input_signal = luminance_range->max_luminance;
+	} else {
+		caps->aux_min_input_signal = 0;
+		caps->aux_max_input_signal = 512;
+	}
+}
+
+void amdgpu_dm_update_connector_after_detect(
+		struct amdgpu_dm_connector *aconnector)
+{
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct dc_sink *sink;
+
+	/* MST handled by drm_mst framework */
+	if (aconnector->mst_mgr.mst_state == true)
+		return;
+
+	sink = aconnector->dc_link->local_sink;
+	if (sink)
+		dc_sink_retain(sink);
+
+	/*
+	 * Edid mgmt connector gets first update only in mode_valid hook and then
+	 * the connector sink is set to either fake or physical sink depends on link status.
+	 * Skip if already done during boot.
+	 */
+	if (aconnector->base.force != DRM_FORCE_UNSPECIFIED
+			&& aconnector->dc_em_sink) {
+
+		/*
+		 * For S3 resume with headless use eml_sink to fake stream
+		 * because on resume connector->sink is set to NULL
+		 */
+		mutex_lock(&dev->mode_config.mutex);
+
+		if (sink) {
+			if (aconnector->dc_sink) {
+				amdgpu_dm_update_freesync_caps(connector, NULL);
+				/*
+				 * retain and release below are used to
+				 * bump up refcount for sink because the link doesn't point
+				 * to it anymore after disconnect, so on next crtc to connector
+				 * reshuffle by UMD we will get into unwanted dc_sink release
+				 */
+				dc_sink_release(aconnector->dc_sink);
+			}
+			aconnector->dc_sink = sink;
+			dc_sink_retain(aconnector->dc_sink);
+			amdgpu_dm_update_freesync_caps(connector,
+					aconnector->edid);
+		} else {
+			amdgpu_dm_update_freesync_caps(connector, NULL);
+			if (!aconnector->dc_sink) {
+				aconnector->dc_sink = aconnector->dc_em_sink;
+				dc_sink_retain(aconnector->dc_sink);
+			}
+		}
+
+		mutex_unlock(&dev->mode_config.mutex);
+
+		if (sink)
+			dc_sink_release(sink);
+		return;
+	}
+
+	/*
+	 * TODO: temporary guard to look for proper fix
+	 * if this sink is MST sink, we should not do anything
+	 */
+	if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
+		dc_sink_release(sink);
+		return;
+	}
+
+	if (aconnector->dc_sink == sink) {
+		/*
+		 * We got a DP short pulse (Link Loss, DP CTS, etc...).
+		 * Do nothing!!
+		 */
+		DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n",
+				aconnector->connector_id);
+		if (sink)
+			dc_sink_release(sink);
+		return;
+	}
+
+	DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n",
+		aconnector->connector_id, aconnector->dc_sink, sink);
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	/*
+	 * 1. Update status of the drm connector
+	 * 2. Send an event and let userspace tell us what to do
+	 */
+	if (sink) {
+		/*
+		 * TODO: check if we still need the S3 mode update workaround.
+		 * If yes, put it here.
+		 */
+		if (aconnector->dc_sink) {
+			amdgpu_dm_update_freesync_caps(connector, NULL);
+			dc_sink_release(aconnector->dc_sink);
+		}
+
+		aconnector->dc_sink = sink;
+		dc_sink_retain(aconnector->dc_sink);
+		if (sink->dc_edid.length == 0) {
+			aconnector->edid = NULL;
+			if (aconnector->dc_link->aux_mode) {
+				drm_dp_cec_unset_edid(
+					&aconnector->dm_dp_aux.aux);
+			}
+		} else {
+			aconnector->edid =
+				(struct edid *)sink->dc_edid.raw_edid;
+
+			if (aconnector->dc_link->aux_mode)
+				drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
+						    aconnector->edid);
+		}
+
+		if (!aconnector->timing_requested) {
+			aconnector->timing_requested =
+				kzalloc(sizeof(struct dc_crtc_timing), GFP_KERNEL);
+			if (!aconnector->timing_requested)
+				dm_error("failed to create aconnector->requested_timing\n");
+		}
+
+		drm_connector_update_edid_property(connector, aconnector->edid);
+		amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
+		update_connector_ext_caps(aconnector);
+	} else {
+		drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
+		amdgpu_dm_update_freesync_caps(connector, NULL);
+		drm_connector_update_edid_property(connector, NULL);
+		aconnector->num_modes = 0;
+		dc_sink_release(aconnector->dc_sink);
+		aconnector->dc_sink = NULL;
+		aconnector->edid = NULL;
+		kfree(aconnector->timing_requested);
+		aconnector->timing_requested = NULL;
+		/* Set CP to DESIRED if it was ENABLED, so we can re-enable it again on hotplug */
+		if (connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
+			connector->state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+	}
+
+	mutex_unlock(&dev->mode_config.mutex);
+
+	update_subconnector_property(aconnector);
+
+	if (sink)
+		dc_sink_release(sink);
+}
+
+static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
+{
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
+	bool ret = false;
+
+	if (adev->dm.disable_hpd_irq)
+		return;
+
+	/*
+	 * In case of failure or MST no need to update connector status or notify the OS
+	 * since (for MST case) MST does this in its own context.
+	 */
+	mutex_lock(&aconnector->hpd_lock);
+
+	if (adev->dm.hdcp_workqueue) {
+		hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
+		dm_con_state->update_hdcp = true;
+	}
+	if (aconnector->fake_enable)
+		aconnector->fake_enable = false;
+
+	aconnector->timing_changed = false;
+
+	if (!dc_link_detect_connection_type(aconnector->dc_link, &new_connection_type))
+		DRM_ERROR("KMS: Failed to detect connector\n");
+
+	if (aconnector->base.force && new_connection_type == dc_connection_none) {
+		emulated_link_detect(aconnector->dc_link);
+
+		drm_modeset_lock_all(dev);
+		dm_restore_drm_connector_state(dev, connector);
+		drm_modeset_unlock_all(dev);
+
+		if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
+			drm_kms_helper_connector_hotplug_event(connector);
+	} else {
+		mutex_lock(&adev->dm.dc_lock);
+		ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
+		mutex_unlock(&adev->dm.dc_lock);
+		if (ret) {
+			amdgpu_dm_update_connector_after_detect(aconnector);
+
+			drm_modeset_lock_all(dev);
+			dm_restore_drm_connector_state(dev, connector);
+			drm_modeset_unlock_all(dev);
+
+			if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
+				drm_kms_helper_connector_hotplug_event(connector);
+		}
+	}
+	mutex_unlock(&aconnector->hpd_lock);
+
+}
+
+static void handle_hpd_irq(void *param)
+{
+	struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
+
+	handle_hpd_irq_helper(aconnector);
+
+}
+
+static void schedule_hpd_rx_offload_work(struct hpd_rx_irq_offload_work_queue *offload_wq,
+							union hpd_irq_data hpd_irq_data)
+{
+	struct hpd_rx_irq_offload_work *offload_work =
+				kzalloc(sizeof(*offload_work), GFP_KERNEL);
+
+	if (!offload_work) {
+		DRM_ERROR("Failed to allocate hpd_rx_irq_offload_work.\n");
+		return;
+	}
+
+	INIT_WORK(&offload_work->work, dm_handle_hpd_rx_offload_work);
+	offload_work->data = hpd_irq_data;
+	offload_work->offload_wq = offload_wq;
+
+	queue_work(offload_wq->wq, &offload_work->work);
+	DRM_DEBUG_KMS("queue work to handle hpd_rx offload work");
+}
+
+static void handle_hpd_rx_irq(void *param)
+{
+	struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct dc_link *dc_link = aconnector->dc_link;
+	bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
+	bool result = false;
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	union hpd_irq_data hpd_irq_data;
+	bool link_loss = false;
+	bool has_left_work = false;
+	int idx = dc_link->link_index;
+	struct hpd_rx_irq_offload_work_queue *offload_wq = &adev->dm.hpd_rx_offload_wq[idx];
+
+	memset(&hpd_irq_data, 0, sizeof(hpd_irq_data));
+
+	if (adev->dm.disable_hpd_irq)
+		return;
+
+	/*
+	 * TODO:Temporary add mutex to protect hpd interrupt not have a gpio
+	 * conflict, after implement i2c helper, this mutex should be
+	 * retired.
+	 */
+	mutex_lock(&aconnector->hpd_lock);
+
+	result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data,
+						&link_loss, true, &has_left_work);
+
+	if (!has_left_work)
+		goto out;
+
+	if (hpd_irq_data.bytes.device_service_irq.bits.AUTOMATED_TEST) {
+		schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
+		goto out;
+	}
+
+	if (dc_link_dp_allow_hpd_rx_irq(dc_link)) {
+		if (hpd_irq_data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY ||
+			hpd_irq_data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY) {
+			bool skip = false;
+
+			/*
+			 * DOWN_REP_MSG_RDY is also handled by polling method
+			 * mgr->cbs->poll_hpd_irq()
+			 */
+			spin_lock(&offload_wq->offload_lock);
+			skip = offload_wq->is_handling_mst_msg_rdy_event;
+
+			if (!skip)
+				offload_wq->is_handling_mst_msg_rdy_event = true;
+
+			spin_unlock(&offload_wq->offload_lock);
+
+			if (!skip)
+				schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
+
+			goto out;
+		}
+
+		if (link_loss) {
+			bool skip = false;
+
+			spin_lock(&offload_wq->offload_lock);
+			skip = offload_wq->is_handling_link_loss;
+
+			if (!skip)
+				offload_wq->is_handling_link_loss = true;
+
+			spin_unlock(&offload_wq->offload_lock);
+
+			if (!skip)
+				schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
+
+			goto out;
+		}
+	}
+
+out:
+	if (result && !is_mst_root_connector) {
+		/* Downstream Port status changed. */
+		if (!dc_link_detect_connection_type(dc_link, &new_connection_type))
+			DRM_ERROR("KMS: Failed to detect connector\n");
+
+		if (aconnector->base.force && new_connection_type == dc_connection_none) {
+			emulated_link_detect(dc_link);
+
+			if (aconnector->fake_enable)
+				aconnector->fake_enable = false;
+
+			amdgpu_dm_update_connector_after_detect(aconnector);
+
+
+			drm_modeset_lock_all(dev);
+			dm_restore_drm_connector_state(dev, connector);
+			drm_modeset_unlock_all(dev);
+
+			drm_kms_helper_connector_hotplug_event(connector);
+		} else {
+			bool ret = false;
+
+			mutex_lock(&adev->dm.dc_lock);
+			ret = dc_link_detect(dc_link, DETECT_REASON_HPDRX);
+			mutex_unlock(&adev->dm.dc_lock);
+
+			if (ret) {
+				if (aconnector->fake_enable)
+					aconnector->fake_enable = false;
+
+				amdgpu_dm_update_connector_after_detect(aconnector);
+
+				drm_modeset_lock_all(dev);
+				dm_restore_drm_connector_state(dev, connector);
+				drm_modeset_unlock_all(dev);
+
+				drm_kms_helper_connector_hotplug_event(connector);
+			}
+		}
+	}
+	if (hpd_irq_data.bytes.device_service_irq.bits.CP_IRQ) {
+		if (adev->dm.hdcp_workqueue)
+			hdcp_handle_cpirq(adev->dm.hdcp_workqueue,  aconnector->base.index);
+	}
+
+	if (dc_link->type != dc_connection_mst_branch)
+		drm_dp_cec_irq(&aconnector->dm_dp_aux.aux);
+
+	mutex_unlock(&aconnector->hpd_lock);
+}
+
+static void register_hpd_handlers(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector *connector;
+	struct amdgpu_dm_connector *aconnector;
+	const struct dc_link *dc_link;
+	struct dc_interrupt_params int_params = {0};
+
+	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+	list_for_each_entry(connector,
+			&dev->mode_config.connector_list, head)	{
+
+		aconnector = to_amdgpu_dm_connector(connector);
+		dc_link = aconnector->dc_link;
+
+		if (dc_link->irq_source_hpd != DC_IRQ_SOURCE_INVALID) {
+			int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
+			int_params.irq_source = dc_link->irq_source_hpd;
+
+			amdgpu_dm_irq_register_interrupt(adev, &int_params,
+					handle_hpd_irq,
+					(void *) aconnector);
+		}
+
+		if (dc_link->irq_source_hpd_rx != DC_IRQ_SOURCE_INVALID) {
+
+			/* Also register for DP short pulse (hpd_rx). */
+			int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
+			int_params.irq_source =	dc_link->irq_source_hpd_rx;
+
+			amdgpu_dm_irq_register_interrupt(adev, &int_params,
+					handle_hpd_rx_irq,
+					(void *) aconnector);
+		}
+
+		if (adev->dm.hpd_rx_offload_wq)
+			adev->dm.hpd_rx_offload_wq[connector->index].aconnector =
+				aconnector;
+	}
+}
+
+#if defined(CONFIG_DRM_AMD_DC_SI)
+/* Register IRQ sources and initialize IRQ callbacks */
+static int dce60_register_irq_handlers(struct amdgpu_device *adev)
+{
+	struct dc *dc = adev->dm.dc;
+	struct common_irq_params *c_irq_params;
+	struct dc_interrupt_params int_params = {0};
+	int r;
+	int i;
+	unsigned int client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
+
+	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+	/*
+	 * Actions of amdgpu_irq_add_id():
+	 * 1. Register a set() function with base driver.
+	 *    Base driver will call set() function to enable/disable an
+	 *    interrupt in DC hardware.
+	 * 2. Register amdgpu_dm_irq_handler().
+	 *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
+	 *    coming from DC hardware.
+	 *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
+	 *    for acknowledging and handling.
+	 */
+
+	/* Use VBLANK interrupt */
+	for (i = 0; i < adev->mode_info.num_crtc; i++) {
+		r = amdgpu_irq_add_id(adev, client_id, i + 1, &adev->crtc_irq);
+		if (r) {
+			DRM_ERROR("Failed to add crtc irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i + 1, 0);
+
+		c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_crtc_high_irq, c_irq_params);
+	}
+
+	/* Use GRPH_PFLIP interrupt */
+	for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
+			i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
+		r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
+		if (r) {
+			DRM_ERROR("Failed to add page flip irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_pflip_high_irq, c_irq_params);
+
+	}
+
+	/* HPD */
+	r = amdgpu_irq_add_id(adev, client_id,
+			VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
+	if (r) {
+		DRM_ERROR("Failed to add hpd irq id!\n");
+		return r;
+	}
+
+	register_hpd_handlers(adev);
+
+	return 0;
+}
+#endif
+
+/* Register IRQ sources and initialize IRQ callbacks */
+static int dce110_register_irq_handlers(struct amdgpu_device *adev)
+{
+	struct dc *dc = adev->dm.dc;
+	struct common_irq_params *c_irq_params;
+	struct dc_interrupt_params int_params = {0};
+	int r;
+	int i;
+	unsigned int client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
+
+	if (adev->family >= AMDGPU_FAMILY_AI)
+		client_id = SOC15_IH_CLIENTID_DCE;
+
+	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+	/*
+	 * Actions of amdgpu_irq_add_id():
+	 * 1. Register a set() function with base driver.
+	 *    Base driver will call set() function to enable/disable an
+	 *    interrupt in DC hardware.
+	 * 2. Register amdgpu_dm_irq_handler().
+	 *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
+	 *    coming from DC hardware.
+	 *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
+	 *    for acknowledging and handling.
+	 */
+
+	/* Use VBLANK interrupt */
+	for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
+		r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq);
+		if (r) {
+			DRM_ERROR("Failed to add crtc irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_crtc_high_irq, c_irq_params);
+	}
+
+	/* Use VUPDATE interrupt */
+	for (i = VISLANDS30_IV_SRCID_D1_V_UPDATE_INT; i <= VISLANDS30_IV_SRCID_D6_V_UPDATE_INT; i += 2) {
+		r = amdgpu_irq_add_id(adev, client_id, i, &adev->vupdate_irq);
+		if (r) {
+			DRM_ERROR("Failed to add vupdate irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_vupdate_high_irq, c_irq_params);
+	}
+
+	/* Use GRPH_PFLIP interrupt */
+	for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
+			i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
+		r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
+		if (r) {
+			DRM_ERROR("Failed to add page flip irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_pflip_high_irq, c_irq_params);
+
+	}
+
+	/* HPD */
+	r = amdgpu_irq_add_id(adev, client_id,
+			VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
+	if (r) {
+		DRM_ERROR("Failed to add hpd irq id!\n");
+		return r;
+	}
+
+	register_hpd_handlers(adev);
+
+	return 0;
+}
+
+/* Register IRQ sources and initialize IRQ callbacks */
+static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
+{
+	struct dc *dc = adev->dm.dc;
+	struct common_irq_params *c_irq_params;
+	struct dc_interrupt_params int_params = {0};
+	int r;
+	int i;
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	static const unsigned int vrtl_int_srcid[] = {
+		DCN_1_0__SRCID__OTG1_VERTICAL_INTERRUPT0_CONTROL,
+		DCN_1_0__SRCID__OTG2_VERTICAL_INTERRUPT0_CONTROL,
+		DCN_1_0__SRCID__OTG3_VERTICAL_INTERRUPT0_CONTROL,
+		DCN_1_0__SRCID__OTG4_VERTICAL_INTERRUPT0_CONTROL,
+		DCN_1_0__SRCID__OTG5_VERTICAL_INTERRUPT0_CONTROL,
+		DCN_1_0__SRCID__OTG6_VERTICAL_INTERRUPT0_CONTROL
+	};
+#endif
+
+	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+	/*
+	 * Actions of amdgpu_irq_add_id():
+	 * 1. Register a set() function with base driver.
+	 *    Base driver will call set() function to enable/disable an
+	 *    interrupt in DC hardware.
+	 * 2. Register amdgpu_dm_irq_handler().
+	 *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
+	 *    coming from DC hardware.
+	 *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
+	 *    for acknowledging and handling.
+	 */
+
+	/* Use VSTARTUP interrupt */
+	for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP;
+			i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1;
+			i++) {
+		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq);
+
+		if (r) {
+			DRM_ERROR("Failed to add crtc irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(
+			adev, &int_params, dm_crtc_high_irq, c_irq_params);
+	}
+
+	/* Use otg vertical line interrupt */
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	for (i = 0; i <= adev->mode_info.num_crtc - 1; i++) {
+		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE,
+				vrtl_int_srcid[i], &adev->vline0_irq);
+
+		if (r) {
+			DRM_ERROR("Failed to add vline0 irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, vrtl_int_srcid[i], 0);
+
+		if (int_params.irq_source == DC_IRQ_SOURCE_INVALID) {
+			DRM_ERROR("Failed to register vline0 irq %d!\n", vrtl_int_srcid[i]);
+			break;
+		}
+
+		c_irq_params = &adev->dm.vline0_params[int_params.irq_source
+					- DC_IRQ_SOURCE_DC1_VLINE0];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_dcn_vertical_interrupt0_high_irq, c_irq_params);
+	}
+#endif
+
+	/* Use VUPDATE_NO_LOCK interrupt on DCN, which seems to correspond to
+	 * the regular VUPDATE interrupt on DCE. We want DC_IRQ_SOURCE_VUPDATEx
+	 * to trigger at end of each vblank, regardless of state of the lock,
+	 * matching DCE behaviour.
+	 */
+	for (i = DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT;
+	     i <= DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT + adev->mode_info.num_crtc - 1;
+	     i++) {
+		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->vupdate_irq);
+
+		if (r) {
+			DRM_ERROR("Failed to add vupdate irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_vupdate_high_irq, c_irq_params);
+	}
+
+	/* Use GRPH_PFLIP interrupt */
+	for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
+			i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + dc->caps.max_otg_num - 1;
+			i++) {
+		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
+		if (r) {
+			DRM_ERROR("Failed to add page flip irq id!\n");
+			return r;
+		}
+
+		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+		int_params.irq_source =
+			dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_pflip_high_irq, c_irq_params);
+
+	}
+
+	/* HPD */
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT,
+			&adev->hpd_irq);
+	if (r) {
+		DRM_ERROR("Failed to add hpd irq id!\n");
+		return r;
+	}
+
+	register_hpd_handlers(adev);
+
+	return 0;
+}
+/* Register Outbox IRQ sources and initialize IRQ callbacks */
+static int register_outbox_irq_handlers(struct amdgpu_device *adev)
+{
+	struct dc *dc = adev->dm.dc;
+	struct common_irq_params *c_irq_params;
+	struct dc_interrupt_params int_params = {0};
+	int r, i;
+
+	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT,
+			&adev->dmub_outbox_irq);
+	if (r) {
+		DRM_ERROR("Failed to add outbox irq id!\n");
+		return r;
+	}
+
+	if (dc->ctx->dmub_srv) {
+		i = DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT;
+		int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
+		int_params.irq_source =
+		dc_interrupt_to_irq_source(dc, i, 0);
+
+		c_irq_params = &adev->dm.dmub_outbox_params[0];
+
+		c_irq_params->adev = adev;
+		c_irq_params->irq_src = int_params.irq_source;
+
+		amdgpu_dm_irq_register_interrupt(adev, &int_params,
+				dm_dmub_outbox1_low_irq, c_irq_params);
+	}
+
+	return 0;
+}
+
+/*
+ * Acquires the lock for the atomic state object and returns
+ * the new atomic state.
+ *
+ * This should only be called during atomic check.
+ */
+int dm_atomic_get_state(struct drm_atomic_state *state,
+			struct dm_atomic_state **dm_state)
+{
+	struct drm_device *dev = state->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct drm_private_state *priv_state;
+
+	if (*dm_state)
+		return 0;
+
+	priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj);
+	if (IS_ERR(priv_state))
+		return PTR_ERR(priv_state);
+
+	*dm_state = to_dm_atomic_state(priv_state);
+
+	return 0;
+}
+
+static struct dm_atomic_state *
+dm_atomic_get_new_state(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct drm_private_obj *obj;
+	struct drm_private_state *new_obj_state;
+	int i;
+
+	for_each_new_private_obj_in_state(state, obj, new_obj_state, i) {
+		if (obj->funcs == dm->atomic_obj.funcs)
+			return to_dm_atomic_state(new_obj_state);
+	}
+
+	return NULL;
+}
+
+static struct drm_private_state *
+dm_atomic_duplicate_state(struct drm_private_obj *obj)
+{
+	struct dm_atomic_state *old_state, *new_state;
+
+	new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);
+	if (!new_state)
+		return NULL;
+
+	__drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base);
+
+	old_state = to_dm_atomic_state(obj->state);
+
+	if (old_state && old_state->context)
+		new_state->context = dc_copy_state(old_state->context);
+
+	if (!new_state->context) {
+		kfree(new_state);
+		return NULL;
+	}
+
+	return &new_state->base;
+}
+
+static void dm_atomic_destroy_state(struct drm_private_obj *obj,
+				    struct drm_private_state *state)
+{
+	struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+
+	if (dm_state && dm_state->context)
+		dc_release_state(dm_state->context);
+
+	kfree(dm_state);
+}
+
+static struct drm_private_state_funcs dm_atomic_state_funcs = {
+	.atomic_duplicate_state = dm_atomic_duplicate_state,
+	.atomic_destroy_state = dm_atomic_destroy_state,
+};
+
+static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
+{
+	struct dm_atomic_state *state;
+	int r;
+
+	adev->mode_info.mode_config_initialized = true;
+
+	adev_to_drm(adev)->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs;
+	adev_to_drm(adev)->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs;
+
+	adev_to_drm(adev)->mode_config.max_width = 16384;
+	adev_to_drm(adev)->mode_config.max_height = 16384;
+
+	adev_to_drm(adev)->mode_config.preferred_depth = 24;
+	if (adev->asic_type == CHIP_HAWAII)
+		/* disable prefer shadow for now due to hibernation issues */
+		adev_to_drm(adev)->mode_config.prefer_shadow = 0;
+	else
+		adev_to_drm(adev)->mode_config.prefer_shadow = 1;
+	/* indicates support for immediate flip */
+	adev_to_drm(adev)->mode_config.async_page_flip = true;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	state->context = dc_create_state(adev->dm.dc);
+	if (!state->context) {
+		kfree(state);
+		return -ENOMEM;
+	}
+
+	dc_resource_state_copy_construct_current(adev->dm.dc, state->context);
+
+	drm_atomic_private_obj_init(adev_to_drm(adev),
+				    &adev->dm.atomic_obj,
+				    &state->base,
+				    &dm_atomic_state_funcs);
+
+	r = amdgpu_display_modeset_create_props(adev);
+	if (r) {
+		dc_release_state(state->context);
+		kfree(state);
+		return r;
+	}
+
+	r = amdgpu_dm_audio_init(adev);
+	if (r) {
+		dc_release_state(state->context);
+		kfree(state);
+		return r;
+	}
+
+	return 0;
+}
+
+#define AMDGPU_DM_DEFAULT_MIN_BACKLIGHT 12
+#define AMDGPU_DM_DEFAULT_MAX_BACKLIGHT 255
+#define AUX_BL_DEFAULT_TRANSITION_TIME_MS 50
+
+static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm,
+					    int bl_idx)
+{
+#if defined(CONFIG_ACPI)
+	struct amdgpu_dm_backlight_caps caps;
+
+	memset(&caps, 0, sizeof(caps));
+
+	if (dm->backlight_caps[bl_idx].caps_valid)
+		return;
+
+	amdgpu_acpi_get_backlight_caps(&caps);
+	if (caps.caps_valid) {
+		dm->backlight_caps[bl_idx].caps_valid = true;
+		if (caps.aux_support)
+			return;
+		dm->backlight_caps[bl_idx].min_input_signal = caps.min_input_signal;
+		dm->backlight_caps[bl_idx].max_input_signal = caps.max_input_signal;
+	} else {
+		dm->backlight_caps[bl_idx].min_input_signal =
+				AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
+		dm->backlight_caps[bl_idx].max_input_signal =
+				AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
+	}
+#else
+	if (dm->backlight_caps[bl_idx].aux_support)
+		return;
+
+	dm->backlight_caps[bl_idx].min_input_signal = AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
+	dm->backlight_caps[bl_idx].max_input_signal = AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
+#endif
+}
+
+static int get_brightness_range(const struct amdgpu_dm_backlight_caps *caps,
+				unsigned int *min, unsigned int *max)
+{
+	if (!caps)
+		return 0;
+
+	if (caps->aux_support) {
+		// Firmware limits are in nits, DC API wants millinits.
+		*max = 1000 * caps->aux_max_input_signal;
+		*min = 1000 * caps->aux_min_input_signal;
+	} else {
+		// Firmware limits are 8-bit, PWM control is 16-bit.
+		*max = 0x101 * caps->max_input_signal;
+		*min = 0x101 * caps->min_input_signal;
+	}
+	return 1;
+}
+
+static u32 convert_brightness_from_user(const struct amdgpu_dm_backlight_caps *caps,
+					uint32_t brightness)
+{
+	unsigned int min, max;
+
+	if (!get_brightness_range(caps, &min, &max))
+		return brightness;
+
+	// Rescale 0..255 to min..max
+	return min + DIV_ROUND_CLOSEST((max - min) * brightness,
+				       AMDGPU_MAX_BL_LEVEL);
+}
+
+static u32 convert_brightness_to_user(const struct amdgpu_dm_backlight_caps *caps,
+				      uint32_t brightness)
+{
+	unsigned int min, max;
+
+	if (!get_brightness_range(caps, &min, &max))
+		return brightness;
+
+	if (brightness < min)
+		return 0;
+	// Rescale min..max to 0..255
+	return DIV_ROUND_CLOSEST(AMDGPU_MAX_BL_LEVEL * (brightness - min),
+				 max - min);
+}
+
+static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
+					 int bl_idx,
+					 u32 user_brightness)
+{
+	struct amdgpu_dm_backlight_caps caps;
+	struct dc_link *link;
+	u32 brightness;
+	bool rc;
+
+	amdgpu_dm_update_backlight_caps(dm, bl_idx);
+	caps = dm->backlight_caps[bl_idx];
+
+	dm->brightness[bl_idx] = user_brightness;
+	/* update scratch register */
+	if (bl_idx == 0)
+		amdgpu_atombios_scratch_regs_set_backlight_level(dm->adev, dm->brightness[bl_idx]);
+	brightness = convert_brightness_from_user(&caps, dm->brightness[bl_idx]);
+	link = (struct dc_link *)dm->backlight_link[bl_idx];
+
+	/* Change brightness based on AUX property */
+	if (caps.aux_support) {
+		rc = dc_link_set_backlight_level_nits(link, true, brightness,
+						      AUX_BL_DEFAULT_TRANSITION_TIME_MS);
+		if (!rc)
+			DRM_DEBUG("DM: Failed to update backlight via AUX on eDP[%d]\n", bl_idx);
+	} else {
+		rc = dc_link_set_backlight_level(link, brightness, 0);
+		if (!rc)
+			DRM_DEBUG("DM: Failed to update backlight on eDP[%d]\n", bl_idx);
+	}
+
+	if (rc)
+		dm->actual_brightness[bl_idx] = user_brightness;
+}
+
+static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
+{
+	struct amdgpu_display_manager *dm = bl_get_data(bd);
+	int i;
+
+	for (i = 0; i < dm->num_of_edps; i++) {
+		if (bd == dm->backlight_dev[i])
+			break;
+	}
+	if (i >= AMDGPU_DM_MAX_NUM_EDP)
+		i = 0;
+	amdgpu_dm_backlight_set_level(dm, i, bd->props.brightness);
+
+	return 0;
+}
+
+static u32 amdgpu_dm_backlight_get_level(struct amdgpu_display_manager *dm,
+					 int bl_idx)
+{
+	int ret;
+	struct amdgpu_dm_backlight_caps caps;
+	struct dc_link *link = (struct dc_link *)dm->backlight_link[bl_idx];
+
+	amdgpu_dm_update_backlight_caps(dm, bl_idx);
+	caps = dm->backlight_caps[bl_idx];
+
+	if (caps.aux_support) {
+		u32 avg, peak;
+		bool rc;
+
+		rc = dc_link_get_backlight_level_nits(link, &avg, &peak);
+		if (!rc)
+			return dm->brightness[bl_idx];
+		return convert_brightness_to_user(&caps, avg);
+	}
+
+	ret = dc_link_get_backlight_level(link);
+
+	if (ret == DC_ERROR_UNEXPECTED)
+		return dm->brightness[bl_idx];
+
+	return convert_brightness_to_user(&caps, ret);
+}
+
+static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
+{
+	struct amdgpu_display_manager *dm = bl_get_data(bd);
+	int i;
+
+	for (i = 0; i < dm->num_of_edps; i++) {
+		if (bd == dm->backlight_dev[i])
+			break;
+	}
+	if (i >= AMDGPU_DM_MAX_NUM_EDP)
+		i = 0;
+	return amdgpu_dm_backlight_get_level(dm, i);
+}
+
+static const struct backlight_ops amdgpu_dm_backlight_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.get_brightness = amdgpu_dm_backlight_get_brightness,
+	.update_status	= amdgpu_dm_backlight_update_status,
+};
+
+static void
+amdgpu_dm_register_backlight_device(struct amdgpu_dm_connector *aconnector)
+{
+	struct drm_device *drm = aconnector->base.dev;
+	struct amdgpu_display_manager *dm = &drm_to_adev(drm)->dm;
+	struct backlight_properties props = { 0 };
+	char bl_name[16];
+
+	if (aconnector->bl_idx == -1)
+		return;
+
+	if (!acpi_video_backlight_use_native()) {
+		drm_info(drm, "Skipping amdgpu DM backlight registration\n");
+		/* Try registering an ACPI video backlight device instead. */
+		acpi_video_register_backlight();
+		return;
+	}
+
+	props.max_brightness = AMDGPU_MAX_BL_LEVEL;
+	props.brightness = AMDGPU_MAX_BL_LEVEL;
+	props.type = BACKLIGHT_RAW;
+
+	snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d",
+		 drm->primary->index + aconnector->bl_idx);
+
+	dm->backlight_dev[aconnector->bl_idx] =
+		backlight_device_register(bl_name, aconnector->base.kdev, dm,
+					  &amdgpu_dm_backlight_ops, &props);
+
+	if (IS_ERR(dm->backlight_dev[aconnector->bl_idx])) {
+		DRM_ERROR("DM: Backlight registration failed!\n");
+		dm->backlight_dev[aconnector->bl_idx] = NULL;
+	} else
+		DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
+}
+
+static int initialize_plane(struct amdgpu_display_manager *dm,
+			    struct amdgpu_mode_info *mode_info, int plane_id,
+			    enum drm_plane_type plane_type,
+			    const struct dc_plane_cap *plane_cap)
+{
+	struct drm_plane *plane;
+	unsigned long possible_crtcs;
+	int ret = 0;
+
+	plane = kzalloc(sizeof(struct drm_plane), GFP_KERNEL);
+	if (!plane) {
+		DRM_ERROR("KMS: Failed to allocate plane\n");
+		return -ENOMEM;
+	}
+	plane->type = plane_type;
+
+	/*
+	 * HACK: IGT tests expect that the primary plane for a CRTC
+	 * can only have one possible CRTC. Only expose support for
+	 * any CRTC if they're not going to be used as a primary plane
+	 * for a CRTC - like overlay or underlay planes.
+	 */
+	possible_crtcs = 1 << plane_id;
+	if (plane_id >= dm->dc->caps.max_streams)
+		possible_crtcs = 0xff;
+
+	ret = amdgpu_dm_plane_init(dm, plane, possible_crtcs, plane_cap);
+
+	if (ret) {
+		DRM_ERROR("KMS: Failed to initialize plane\n");
+		kfree(plane);
+		return ret;
+	}
+
+	if (mode_info)
+		mode_info->planes[plane_id] = plane;
+
+	return ret;
+}
+
+
+static void setup_backlight_device(struct amdgpu_display_manager *dm,
+				   struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_link *link = aconnector->dc_link;
+	int bl_idx = dm->num_of_edps;
+
+	if (!(link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) ||
+	    link->type == dc_connection_none)
+		return;
+
+	if (dm->num_of_edps >= AMDGPU_DM_MAX_NUM_EDP) {
+		drm_warn(adev_to_drm(dm->adev), "Too much eDP connections, skipping backlight setup for additional eDPs\n");
+		return;
+	}
+
+	aconnector->bl_idx = bl_idx;
+
+	amdgpu_dm_update_backlight_caps(dm, bl_idx);
+	dm->brightness[bl_idx] = AMDGPU_MAX_BL_LEVEL;
+	dm->backlight_link[bl_idx] = link;
+	dm->num_of_edps++;
+
+	update_connector_ext_caps(aconnector);
+}
+
+static void amdgpu_set_panel_orientation(struct drm_connector *connector);
+
+/*
+ * In this architecture, the association
+ * connector -> encoder -> crtc
+ * id not really requried. The crtc and connector will hold the
+ * display_index as an abstraction to use with DAL component
+ *
+ * Returns 0 on success
+ */
+static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
+{
+	struct amdgpu_display_manager *dm = &adev->dm;
+	s32 i;
+	struct amdgpu_dm_connector *aconnector = NULL;
+	struct amdgpu_encoder *aencoder = NULL;
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	u32 link_cnt;
+	s32 primary_planes;
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	const struct dc_plane_cap *plane;
+	bool psr_feature_enabled = false;
+	bool replay_feature_enabled = false;
+	int max_overlay = dm->dc->caps.max_slave_planes;
+
+	dm->display_indexes_num = dm->dc->caps.max_streams;
+	/* Update the actual used number of crtc */
+	adev->mode_info.num_crtc = adev->dm.display_indexes_num;
+
+	amdgpu_dm_set_irq_funcs(adev);
+
+	link_cnt = dm->dc->caps.max_links;
+	if (amdgpu_dm_mode_config_init(dm->adev)) {
+		DRM_ERROR("DM: Failed to initialize mode config\n");
+		return -EINVAL;
+	}
+
+	/* There is one primary plane per CRTC */
+	primary_planes = dm->dc->caps.max_streams;
+	ASSERT(primary_planes <= AMDGPU_MAX_PLANES);
+
+	/*
+	 * Initialize primary planes, implicit planes for legacy IOCTLS.
+	 * Order is reversed to match iteration order in atomic check.
+	 */
+	for (i = (primary_planes - 1); i >= 0; i--) {
+		plane = &dm->dc->caps.planes[i];
+
+		if (initialize_plane(dm, mode_info, i,
+				     DRM_PLANE_TYPE_PRIMARY, plane)) {
+			DRM_ERROR("KMS: Failed to initialize primary plane\n");
+			goto fail;
+		}
+	}
+
+	/*
+	 * Initialize overlay planes, index starting after primary planes.
+	 * These planes have a higher DRM index than the primary planes since
+	 * they should be considered as having a higher z-order.
+	 * Order is reversed to match iteration order in atomic check.
+	 *
+	 * Only support DCN for now, and only expose one so we don't encourage
+	 * userspace to use up all the pipes.
+	 */
+	for (i = 0; i < dm->dc->caps.max_planes; ++i) {
+		struct dc_plane_cap *plane = &dm->dc->caps.planes[i];
+
+		/* Do not create overlay if MPO disabled */
+		if (amdgpu_dc_debug_mask & DC_DISABLE_MPO)
+			break;
+
+		if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL)
+			continue;
+
+		if (!plane->pixel_format_support.argb8888)
+			continue;
+
+		if (max_overlay-- == 0)
+			break;
+
+		if (initialize_plane(dm, NULL, primary_planes + i,
+				     DRM_PLANE_TYPE_OVERLAY, plane)) {
+			DRM_ERROR("KMS: Failed to initialize overlay plane\n");
+			goto fail;
+		}
+	}
+
+	for (i = 0; i < dm->dc->caps.max_streams; i++)
+		if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) {
+			DRM_ERROR("KMS: Failed to initialize crtc\n");
+			goto fail;
+		}
+
+	/* Use Outbox interrupt */
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(3, 0, 0):
+	case IP_VERSION(3, 1, 2):
+	case IP_VERSION(3, 1, 3):
+	case IP_VERSION(3, 1, 4):
+	case IP_VERSION(3, 1, 5):
+	case IP_VERSION(3, 1, 6):
+	case IP_VERSION(3, 2, 0):
+	case IP_VERSION(3, 2, 1):
+	case IP_VERSION(2, 1, 0):
+		if (register_outbox_irq_handlers(dm->adev)) {
+			DRM_ERROR("DM: Failed to initialize IRQ\n");
+			goto fail;
+		}
+		break;
+	default:
+		DRM_DEBUG_KMS("Unsupported DCN IP version for outbox: 0x%X\n",
+			      adev->ip_versions[DCE_HWIP][0]);
+	}
+
+	/* Determine whether to enable PSR support by default. */
+	if (!(amdgpu_dc_debug_mask & DC_DISABLE_PSR)) {
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(3, 1, 2):
+		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			psr_feature_enabled = true;
+			break;
+		default:
+			psr_feature_enabled = amdgpu_dc_feature_mask & DC_PSR_MASK;
+			break;
+		}
+	}
+
+	if (!(amdgpu_dc_debug_mask & DC_DISABLE_REPLAY)) {
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			replay_feature_enabled = true;
+			break;
+		default:
+			replay_feature_enabled = amdgpu_dc_feature_mask & DC_REPLAY_MASK;
+			break;
+		}
+	}
+	/* loops over all connectors on the board */
+	for (i = 0; i < link_cnt; i++) {
+		struct dc_link *link = NULL;
+
+		if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
+			DRM_ERROR(
+				"KMS: Cannot support more than %d display indexes\n",
+					AMDGPU_DM_MAX_DISPLAY_INDEX);
+			continue;
+		}
+
+		aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
+		if (!aconnector)
+			goto fail;
+
+		aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL);
+		if (!aencoder)
+			goto fail;
+
+		if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) {
+			DRM_ERROR("KMS: Failed to initialize encoder\n");
+			goto fail;
+		}
+
+		if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) {
+			DRM_ERROR("KMS: Failed to initialize connector\n");
+			goto fail;
+		}
+
+		link = dc_get_link_at_index(dm->dc, i);
+
+		if (!dc_link_detect_connection_type(link, &new_connection_type))
+			DRM_ERROR("KMS: Failed to detect connector\n");
+
+		if (aconnector->base.force && new_connection_type == dc_connection_none) {
+			emulated_link_detect(link);
+			amdgpu_dm_update_connector_after_detect(aconnector);
+		} else {
+			bool ret = false;
+
+			mutex_lock(&dm->dc_lock);
+			ret = dc_link_detect(link, DETECT_REASON_BOOT);
+			mutex_unlock(&dm->dc_lock);
+
+			if (ret) {
+				amdgpu_dm_update_connector_after_detect(aconnector);
+				setup_backlight_device(dm, aconnector);
+
+				/*
+				 * Disable psr if replay can be enabled
+				 */
+				if (replay_feature_enabled && amdgpu_dm_setup_replay(link, aconnector))
+					psr_feature_enabled = false;
+
+				if (psr_feature_enabled)
+					amdgpu_dm_set_psr_caps(link);
+
+				/* TODO: Fix vblank control helpers to delay PSR entry to allow this when
+				 * PSR is also supported.
+				 */
+				if (link->psr_settings.psr_feature_enabled)
+					adev_to_drm(adev)->vblank_disable_immediate = false;
+			}
+		}
+		amdgpu_set_panel_orientation(&aconnector->base);
+	}
+
+	/* Software is initialized. Now we can register interrupt handlers. */
+	switch (adev->asic_type) {
+#if defined(CONFIG_DRM_AMD_DC_SI)
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_VERDE:
+	case CHIP_OLAND:
+		if (dce60_register_irq_handlers(dm->adev)) {
+			DRM_ERROR("DM: Failed to initialize IRQ\n");
+			goto fail;
+		}
+		break;
+#endif
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+	case CHIP_KAVERI:
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+	case CHIP_TONGA:
+	case CHIP_FIJI:
+	case CHIP_CARRIZO:
+	case CHIP_STONEY:
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS10:
+	case CHIP_POLARIS12:
+	case CHIP_VEGAM:
+	case CHIP_VEGA10:
+	case CHIP_VEGA12:
+	case CHIP_VEGA20:
+		if (dce110_register_irq_handlers(dm->adev)) {
+			DRM_ERROR("DM: Failed to initialize IRQ\n");
+			goto fail;
+		}
+		break;
+	default:
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(1, 0, 0):
+		case IP_VERSION(1, 0, 1):
+		case IP_VERSION(2, 0, 2):
+		case IP_VERSION(2, 0, 3):
+		case IP_VERSION(2, 0, 0):
+		case IP_VERSION(2, 1, 0):
+		case IP_VERSION(3, 0, 0):
+		case IP_VERSION(3, 0, 2):
+		case IP_VERSION(3, 0, 3):
+		case IP_VERSION(3, 0, 1):
+		case IP_VERSION(3, 1, 2):
+		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			if (dcn10_register_irq_handlers(dm->adev)) {
+				DRM_ERROR("DM: Failed to initialize IRQ\n");
+				goto fail;
+			}
+			break;
+		default:
+			DRM_ERROR("Unsupported DCE IP versions: 0x%X\n",
+					adev->ip_versions[DCE_HWIP][0]);
+			goto fail;
+		}
+		break;
+	}
+
+	return 0;
+fail:
+	kfree(aencoder);
+	kfree(aconnector);
+
+	return -EINVAL;
+}
+
+static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
+{
+	drm_atomic_private_obj_fini(&dm->atomic_obj);
+}
+
+/******************************************************************************
+ * amdgpu_display_funcs functions
+ *****************************************************************************/
+
+/*
+ * dm_bandwidth_update - program display watermarks
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Calculate and program the display watermarks and line buffer allocation.
+ */
+static void dm_bandwidth_update(struct amdgpu_device *adev)
+{
+	/* TODO: implement later */
+}
+
+static const struct amdgpu_display_funcs dm_display_funcs = {
+	.bandwidth_update = dm_bandwidth_update, /* called unconditionally */
+	.vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */
+	.backlight_set_level = NULL, /* never called for DC */
+	.backlight_get_level = NULL, /* never called for DC */
+	.hpd_sense = NULL,/* called unconditionally */
+	.hpd_set_polarity = NULL, /* called unconditionally */
+	.hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */
+	.page_flip_get_scanoutpos =
+		dm_crtc_get_scanoutpos,/* called unconditionally */
+	.add_encoder = NULL, /* VBIOS parsing. DAL does it. */
+	.add_connector = NULL, /* VBIOS parsing. DAL does it. */
+};
+
+#if defined(CONFIG_DEBUG_KERNEL_DC)
+
+static ssize_t s3_debug_store(struct device *device,
+			      struct device_attribute *attr,
+			      const char *buf,
+			      size_t count)
+{
+	int ret;
+	int s3_state;
+	struct drm_device *drm_dev = dev_get_drvdata(device);
+	struct amdgpu_device *adev = drm_to_adev(drm_dev);
+
+	ret = kstrtoint(buf, 0, &s3_state);
+
+	if (ret == 0) {
+		if (s3_state) {
+			dm_resume(adev);
+			drm_kms_helper_hotplug_event(adev_to_drm(adev));
+		} else
+			dm_suspend(adev);
+	}
+
+	return ret == 0 ? count : 0;
+}
+
+DEVICE_ATTR_WO(s3_debug);
+
+#endif
+
+static int dm_init_microcode(struct amdgpu_device *adev)
+{
+	char *fw_name_dmub;
+	int r;
+
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(2, 1, 0):
+		fw_name_dmub = FIRMWARE_RENOIR_DMUB;
+		if (ASICREV_IS_GREEN_SARDINE(adev->external_rev_id))
+			fw_name_dmub = FIRMWARE_GREEN_SARDINE_DMUB;
+		break;
+	case IP_VERSION(3, 0, 0):
+		if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 3, 0))
+			fw_name_dmub = FIRMWARE_SIENNA_CICHLID_DMUB;
+		else
+			fw_name_dmub = FIRMWARE_NAVY_FLOUNDER_DMUB;
+		break;
+	case IP_VERSION(3, 0, 1):
+		fw_name_dmub = FIRMWARE_VANGOGH_DMUB;
+		break;
+	case IP_VERSION(3, 0, 2):
+		fw_name_dmub = FIRMWARE_DIMGREY_CAVEFISH_DMUB;
+		break;
+	case IP_VERSION(3, 0, 3):
+		fw_name_dmub = FIRMWARE_BEIGE_GOBY_DMUB;
+		break;
+	case IP_VERSION(3, 1, 2):
+	case IP_VERSION(3, 1, 3):
+		fw_name_dmub = FIRMWARE_YELLOW_CARP_DMUB;
+		break;
+	case IP_VERSION(3, 1, 4):
+		fw_name_dmub = FIRMWARE_DCN_314_DMUB;
+		break;
+	case IP_VERSION(3, 1, 5):
+		fw_name_dmub = FIRMWARE_DCN_315_DMUB;
+		break;
+	case IP_VERSION(3, 1, 6):
+		fw_name_dmub = FIRMWARE_DCN316_DMUB;
+		break;
+	case IP_VERSION(3, 2, 0):
+		fw_name_dmub = FIRMWARE_DCN_V3_2_0_DMCUB;
+		break;
+	case IP_VERSION(3, 2, 1):
+		fw_name_dmub = FIRMWARE_DCN_V3_2_1_DMCUB;
+		break;
+	default:
+		/* ASIC doesn't support DMUB. */
+		return 0;
+	}
+	r = amdgpu_ucode_request(adev, &adev->dm.dmub_fw, fw_name_dmub);
+	if (r)
+		DRM_ERROR("DMUB firmware loading failed: %d\n", r);
+	return r;
+}
+
+static int dm_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	struct atom_context *ctx = mode_info->atom_context;
+	int index = GetIndexIntoMasterTable(DATA, Object_Header);
+	u16 data_offset;
+
+	/* if there is no object header, skip DM */
+	if (!amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
+		adev->harvest_ip_mask |= AMD_HARVEST_IP_DMU_MASK;
+		dev_info(adev->dev, "No object header, skipping DM\n");
+		return -ENOENT;
+	}
+
+	switch (adev->asic_type) {
+#if defined(CONFIG_DRM_AMD_DC_SI)
+	case CHIP_TAHITI:
+	case CHIP_PITCAIRN:
+	case CHIP_VERDE:
+		adev->mode_info.num_crtc = 6;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 6;
+		break;
+	case CHIP_OLAND:
+		adev->mode_info.num_crtc = 2;
+		adev->mode_info.num_hpd = 2;
+		adev->mode_info.num_dig = 2;
+		break;
+#endif
+	case CHIP_BONAIRE:
+	case CHIP_HAWAII:
+		adev->mode_info.num_crtc = 6;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 6;
+		break;
+	case CHIP_KAVERI:
+		adev->mode_info.num_crtc = 4;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 7;
+		break;
+	case CHIP_KABINI:
+	case CHIP_MULLINS:
+		adev->mode_info.num_crtc = 2;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 6;
+		break;
+	case CHIP_FIJI:
+	case CHIP_TONGA:
+		adev->mode_info.num_crtc = 6;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 7;
+		break;
+	case CHIP_CARRIZO:
+		adev->mode_info.num_crtc = 3;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 9;
+		break;
+	case CHIP_STONEY:
+		adev->mode_info.num_crtc = 2;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 9;
+		break;
+	case CHIP_POLARIS11:
+	case CHIP_POLARIS12:
+		adev->mode_info.num_crtc = 5;
+		adev->mode_info.num_hpd = 5;
+		adev->mode_info.num_dig = 5;
+		break;
+	case CHIP_POLARIS10:
+	case CHIP_VEGAM:
+		adev->mode_info.num_crtc = 6;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 6;
+		break;
+	case CHIP_VEGA10:
+	case CHIP_VEGA12:
+	case CHIP_VEGA20:
+		adev->mode_info.num_crtc = 6;
+		adev->mode_info.num_hpd = 6;
+		adev->mode_info.num_dig = 6;
+		break;
+	default:
+
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(2, 0, 2):
+		case IP_VERSION(3, 0, 0):
+			adev->mode_info.num_crtc = 6;
+			adev->mode_info.num_hpd = 6;
+			adev->mode_info.num_dig = 6;
+			break;
+		case IP_VERSION(2, 0, 0):
+		case IP_VERSION(3, 0, 2):
+			adev->mode_info.num_crtc = 5;
+			adev->mode_info.num_hpd = 5;
+			adev->mode_info.num_dig = 5;
+			break;
+		case IP_VERSION(2, 0, 3):
+		case IP_VERSION(3, 0, 3):
+			adev->mode_info.num_crtc = 2;
+			adev->mode_info.num_hpd = 2;
+			adev->mode_info.num_dig = 2;
+			break;
+		case IP_VERSION(1, 0, 0):
+		case IP_VERSION(1, 0, 1):
+		case IP_VERSION(3, 0, 1):
+		case IP_VERSION(2, 1, 0):
+		case IP_VERSION(3, 1, 2):
+		case IP_VERSION(3, 1, 3):
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			adev->mode_info.num_crtc = 4;
+			adev->mode_info.num_hpd = 4;
+			adev->mode_info.num_dig = 4;
+			break;
+		default:
+			DRM_ERROR("Unsupported DCE IP versions: 0x%x\n",
+					adev->ip_versions[DCE_HWIP][0]);
+			return -EINVAL;
+		}
+		break;
+	}
+
+	if (adev->mode_info.funcs == NULL)
+		adev->mode_info.funcs = &dm_display_funcs;
+
+	/*
+	 * Note: Do NOT change adev->audio_endpt_rreg and
+	 * adev->audio_endpt_wreg because they are initialised in
+	 * amdgpu_device_init()
+	 */
+#if defined(CONFIG_DEBUG_KERNEL_DC)
+	device_create_file(
+		adev_to_drm(adev)->dev,
+		&dev_attr_s3_debug);
+#endif
+	adev->dc_enabled = true;
+
+	return dm_init_microcode(adev);
+}
+
+static bool modereset_required(struct drm_crtc_state *crtc_state)
+{
+	return !crtc_state->active && drm_atomic_crtc_needs_modeset(crtc_state);
+}
+
+static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+	kfree(encoder);
+}
+
+static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
+	.destroy = amdgpu_dm_encoder_destroy,
+};
+
+static int
+fill_plane_color_attributes(const struct drm_plane_state *plane_state,
+			    const enum surface_pixel_format format,
+			    enum dc_color_space *color_space)
+{
+	bool full_range;
+
+	*color_space = COLOR_SPACE_SRGB;
+
+	/* DRM color properties only affect non-RGB formats. */
+	if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
+		return 0;
+
+	full_range = (plane_state->color_range == DRM_COLOR_YCBCR_FULL_RANGE);
+
+	switch (plane_state->color_encoding) {
+	case DRM_COLOR_YCBCR_BT601:
+		if (full_range)
+			*color_space = COLOR_SPACE_YCBCR601;
+		else
+			*color_space = COLOR_SPACE_YCBCR601_LIMITED;
+		break;
+
+	case DRM_COLOR_YCBCR_BT709:
+		if (full_range)
+			*color_space = COLOR_SPACE_YCBCR709;
+		else
+			*color_space = COLOR_SPACE_YCBCR709_LIMITED;
+		break;
+
+	case DRM_COLOR_YCBCR_BT2020:
+		if (full_range)
+			*color_space = COLOR_SPACE_2020_YCBCR;
+		else
+			return -EINVAL;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+fill_dc_plane_info_and_addr(struct amdgpu_device *adev,
+			    const struct drm_plane_state *plane_state,
+			    const u64 tiling_flags,
+			    struct dc_plane_info *plane_info,
+			    struct dc_plane_address *address,
+			    bool tmz_surface,
+			    bool force_disable_dcc)
+{
+	const struct drm_framebuffer *fb = plane_state->fb;
+	const struct amdgpu_framebuffer *afb =
+		to_amdgpu_framebuffer(plane_state->fb);
+	int ret;
+
+	memset(plane_info, 0, sizeof(*plane_info));
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_C8:
+		plane_info->format =
+			SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS;
+		break;
+	case DRM_FORMAT_RGB565:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565;
+		break;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
+		break;
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_ARGB2101010:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010;
+		break;
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_ABGR2101010:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010;
+		break;
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888;
+		break;
+	case DRM_FORMAT_NV21:
+		plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr;
+		break;
+	case DRM_FORMAT_NV12:
+		plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb;
+		break;
+	case DRM_FORMAT_P010:
+		plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_10bpc_YCrCb;
+		break;
+	case DRM_FORMAT_XRGB16161616F:
+	case DRM_FORMAT_ARGB16161616F:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F;
+		break;
+	case DRM_FORMAT_XBGR16161616F:
+	case DRM_FORMAT_ABGR16161616F:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F;
+		break;
+	case DRM_FORMAT_XRGB16161616:
+	case DRM_FORMAT_ARGB16161616:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616;
+		break;
+	case DRM_FORMAT_XBGR16161616:
+	case DRM_FORMAT_ABGR16161616:
+		plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616;
+		break;
+	default:
+		DRM_ERROR(
+			"Unsupported screen format %p4cc\n",
+			&fb->format->format);
+		return -EINVAL;
+	}
+
+	switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) {
+	case DRM_MODE_ROTATE_0:
+		plane_info->rotation = ROTATION_ANGLE_0;
+		break;
+	case DRM_MODE_ROTATE_90:
+		plane_info->rotation = ROTATION_ANGLE_90;
+		break;
+	case DRM_MODE_ROTATE_180:
+		plane_info->rotation = ROTATION_ANGLE_180;
+		break;
+	case DRM_MODE_ROTATE_270:
+		plane_info->rotation = ROTATION_ANGLE_270;
+		break;
+	default:
+		plane_info->rotation = ROTATION_ANGLE_0;
+		break;
+	}
+
+
+	plane_info->visible = true;
+	plane_info->stereo_format = PLANE_STEREO_FORMAT_NONE;
+
+	plane_info->layer_index = plane_state->normalized_zpos;
+
+	ret = fill_plane_color_attributes(plane_state, plane_info->format,
+					  &plane_info->color_space);
+	if (ret)
+		return ret;
+
+	ret = amdgpu_dm_plane_fill_plane_buffer_attributes(adev, afb, plane_info->format,
+					   plane_info->rotation, tiling_flags,
+					   &plane_info->tiling_info,
+					   &plane_info->plane_size,
+					   &plane_info->dcc, address,
+					   tmz_surface, force_disable_dcc);
+	if (ret)
+		return ret;
+
+	amdgpu_dm_plane_fill_blending_from_plane_state(
+		plane_state, &plane_info->per_pixel_alpha, &plane_info->pre_multiplied_alpha,
+		&plane_info->global_alpha, &plane_info->global_alpha_value);
+
+	return 0;
+}
+
+static int fill_dc_plane_attributes(struct amdgpu_device *adev,
+				    struct dc_plane_state *dc_plane_state,
+				    struct drm_plane_state *plane_state,
+				    struct drm_crtc_state *crtc_state)
+{
+	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
+	struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)plane_state->fb;
+	struct dc_scaling_info scaling_info;
+	struct dc_plane_info plane_info;
+	int ret;
+	bool force_disable_dcc = false;
+
+	ret = amdgpu_dm_plane_fill_dc_scaling_info(adev, plane_state, &scaling_info);
+	if (ret)
+		return ret;
+
+	dc_plane_state->src_rect = scaling_info.src_rect;
+	dc_plane_state->dst_rect = scaling_info.dst_rect;
+	dc_plane_state->clip_rect = scaling_info.clip_rect;
+	dc_plane_state->scaling_quality = scaling_info.scaling_quality;
+
+	force_disable_dcc = adev->asic_type == CHIP_RAVEN && adev->in_suspend;
+	ret = fill_dc_plane_info_and_addr(adev, plane_state,
+					  afb->tiling_flags,
+					  &plane_info,
+					  &dc_plane_state->address,
+					  afb->tmz_surface,
+					  force_disable_dcc);
+	if (ret)
+		return ret;
+
+	dc_plane_state->format = plane_info.format;
+	dc_plane_state->color_space = plane_info.color_space;
+	dc_plane_state->format = plane_info.format;
+	dc_plane_state->plane_size = plane_info.plane_size;
+	dc_plane_state->rotation = plane_info.rotation;
+	dc_plane_state->horizontal_mirror = plane_info.horizontal_mirror;
+	dc_plane_state->stereo_format = plane_info.stereo_format;
+	dc_plane_state->tiling_info = plane_info.tiling_info;
+	dc_plane_state->visible = plane_info.visible;
+	dc_plane_state->per_pixel_alpha = plane_info.per_pixel_alpha;
+	dc_plane_state->pre_multiplied_alpha = plane_info.pre_multiplied_alpha;
+	dc_plane_state->global_alpha = plane_info.global_alpha;
+	dc_plane_state->global_alpha_value = plane_info.global_alpha_value;
+	dc_plane_state->dcc = plane_info.dcc;
+	dc_plane_state->layer_index = plane_info.layer_index;
+	dc_plane_state->flip_int_enabled = true;
+
+	/*
+	 * Always set input transfer function, since plane state is refreshed
+	 * every time.
+	 */
+	ret = amdgpu_dm_update_plane_color_mgmt(dm_crtc_state, dc_plane_state);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static inline void fill_dc_dirty_rect(struct drm_plane *plane,
+				      struct rect *dirty_rect, int32_t x,
+				      s32 y, s32 width, s32 height,
+				      int *i, bool ffu)
+{
+	WARN_ON(*i >= DC_MAX_DIRTY_RECTS);
+
+	dirty_rect->x = x;
+	dirty_rect->y = y;
+	dirty_rect->width = width;
+	dirty_rect->height = height;
+
+	if (ffu)
+		drm_dbg(plane->dev,
+			"[PLANE:%d] PSR FFU dirty rect size (%d, %d)\n",
+			plane->base.id, width, height);
+	else
+		drm_dbg(plane->dev,
+			"[PLANE:%d] PSR SU dirty rect at (%d, %d) size (%d, %d)",
+			plane->base.id, x, y, width, height);
+
+	(*i)++;
+}
+
+/**
+ * fill_dc_dirty_rects() - Fill DC dirty regions for PSR selective updates
+ *
+ * @plane: DRM plane containing dirty regions that need to be flushed to the eDP
+ *         remote fb
+ * @old_plane_state: Old state of @plane
+ * @new_plane_state: New state of @plane
+ * @crtc_state: New state of CRTC connected to the @plane
+ * @flip_addrs: DC flip tracking struct, which also tracts dirty rects
+ * @dirty_regions_changed: dirty regions changed
+ *
+ * For PSR SU, DC informs the DMUB uController of dirty rectangle regions
+ * (referred to as "damage clips" in DRM nomenclature) that require updating on
+ * the eDP remote buffer. The responsibility of specifying the dirty regions is
+ * amdgpu_dm's.
+ *
+ * A damage-aware DRM client should fill the FB_DAMAGE_CLIPS property on the
+ * plane with regions that require flushing to the eDP remote buffer. In
+ * addition, certain use cases - such as cursor and multi-plane overlay (MPO) -
+ * implicitly provide damage clips without any client support via the plane
+ * bounds.
+ */
+static void fill_dc_dirty_rects(struct drm_plane *plane,
+				struct drm_plane_state *old_plane_state,
+				struct drm_plane_state *new_plane_state,
+				struct drm_crtc_state *crtc_state,
+				struct dc_flip_addrs *flip_addrs,
+				bool *dirty_regions_changed)
+{
+	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
+	struct rect *dirty_rects = flip_addrs->dirty_rects;
+	u32 num_clips;
+	struct drm_mode_rect *clips;
+	bool bb_changed;
+	bool fb_changed;
+	u32 i = 0;
+	*dirty_regions_changed = false;
+
+	/*
+	 * Cursor plane has it's own dirty rect update interface. See
+	 * dcn10_dmub_update_cursor_data and dmub_cmd_update_cursor_info_data
+	 */
+	if (plane->type == DRM_PLANE_TYPE_CURSOR)
+		return;
+
+	if (new_plane_state->rotation != DRM_MODE_ROTATE_0)
+		goto ffu;
+
+	num_clips = drm_plane_get_damage_clips_count(new_plane_state);
+	clips = drm_plane_get_damage_clips(new_plane_state);
+
+	if (!dm_crtc_state->mpo_requested) {
+		if (!num_clips || num_clips > DC_MAX_DIRTY_RECTS)
+			goto ffu;
+
+		for (; flip_addrs->dirty_rect_count < num_clips; clips++)
+			fill_dc_dirty_rect(new_plane_state->plane,
+					   &dirty_rects[flip_addrs->dirty_rect_count],
+					   clips->x1, clips->y1,
+					   clips->x2 - clips->x1, clips->y2 - clips->y1,
+					   &flip_addrs->dirty_rect_count,
+					   false);
+		return;
+	}
+
+	/*
+	 * MPO is requested. Add entire plane bounding box to dirty rects if
+	 * flipped to or damaged.
+	 *
+	 * If plane is moved or resized, also add old bounding box to dirty
+	 * rects.
+	 */
+	fb_changed = old_plane_state->fb->base.id !=
+		     new_plane_state->fb->base.id;
+	bb_changed = (old_plane_state->crtc_x != new_plane_state->crtc_x ||
+		      old_plane_state->crtc_y != new_plane_state->crtc_y ||
+		      old_plane_state->crtc_w != new_plane_state->crtc_w ||
+		      old_plane_state->crtc_h != new_plane_state->crtc_h);
+
+	drm_dbg(plane->dev,
+		"[PLANE:%d] PSR bb_changed:%d fb_changed:%d num_clips:%d\n",
+		new_plane_state->plane->base.id,
+		bb_changed, fb_changed, num_clips);
+
+	*dirty_regions_changed = bb_changed;
+
+	if ((num_clips + (bb_changed ? 2 : 0)) > DC_MAX_DIRTY_RECTS)
+		goto ffu;
+
+	if (bb_changed) {
+		fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
+				   new_plane_state->crtc_x,
+				   new_plane_state->crtc_y,
+				   new_plane_state->crtc_w,
+				   new_plane_state->crtc_h, &i, false);
+
+		/* Add old plane bounding-box if plane is moved or resized */
+		fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
+				   old_plane_state->crtc_x,
+				   old_plane_state->crtc_y,
+				   old_plane_state->crtc_w,
+				   old_plane_state->crtc_h, &i, false);
+	}
+
+	if (num_clips) {
+		for (; i < num_clips; clips++)
+			fill_dc_dirty_rect(new_plane_state->plane,
+					   &dirty_rects[i], clips->x1,
+					   clips->y1, clips->x2 - clips->x1,
+					   clips->y2 - clips->y1, &i, false);
+	} else if (fb_changed && !bb_changed) {
+		fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
+				   new_plane_state->crtc_x,
+				   new_plane_state->crtc_y,
+				   new_plane_state->crtc_w,
+				   new_plane_state->crtc_h, &i, false);
+	}
+
+	flip_addrs->dirty_rect_count = i;
+	return;
+
+ffu:
+	fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[0], 0, 0,
+			   dm_crtc_state->base.mode.crtc_hdisplay,
+			   dm_crtc_state->base.mode.crtc_vdisplay,
+			   &flip_addrs->dirty_rect_count, true);
+}
+
+static void update_stream_scaling_settings(const struct drm_display_mode *mode,
+					   const struct dm_connector_state *dm_state,
+					   struct dc_stream_state *stream)
+{
+	enum amdgpu_rmx_type rmx_type;
+
+	struct rect src = { 0 }; /* viewport in composition space*/
+	struct rect dst = { 0 }; /* stream addressable area */
+
+	/* no mode. nothing to be done */
+	if (!mode)
+		return;
+
+	/* Full screen scaling by default */
+	src.width = mode->hdisplay;
+	src.height = mode->vdisplay;
+	dst.width = stream->timing.h_addressable;
+	dst.height = stream->timing.v_addressable;
+
+	if (dm_state) {
+		rmx_type = dm_state->scaling;
+		if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
+			if (src.width * dst.height <
+					src.height * dst.width) {
+				/* height needs less upscaling/more downscaling */
+				dst.width = src.width *
+						dst.height / src.height;
+			} else {
+				/* width needs less upscaling/more downscaling */
+				dst.height = src.height *
+						dst.width / src.width;
+			}
+		} else if (rmx_type == RMX_CENTER) {
+			dst = src;
+		}
+
+		dst.x = (stream->timing.h_addressable - dst.width) / 2;
+		dst.y = (stream->timing.v_addressable - dst.height) / 2;
+
+		if (dm_state->underscan_enable) {
+			dst.x += dm_state->underscan_hborder / 2;
+			dst.y += dm_state->underscan_vborder / 2;
+			dst.width -= dm_state->underscan_hborder;
+			dst.height -= dm_state->underscan_vborder;
+		}
+	}
+
+	stream->src = src;
+	stream->dst = dst;
+
+	DRM_DEBUG_KMS("Destination Rectangle x:%d  y:%d  width:%d  height:%d\n",
+		      dst.x, dst.y, dst.width, dst.height);
+
+}
+
+static enum dc_color_depth
+convert_color_depth_from_display_info(const struct drm_connector *connector,
+				      bool is_y420, int requested_bpc)
+{
+	u8 bpc;
+
+	if (is_y420) {
+		bpc = 8;
+
+		/* Cap display bpc based on HDMI 2.0 HF-VSDB */
+		if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48)
+			bpc = 16;
+		else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36)
+			bpc = 12;
+		else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30)
+			bpc = 10;
+	} else {
+		bpc = (uint8_t)connector->display_info.bpc;
+		/* Assume 8 bpc by default if no bpc is specified. */
+		bpc = bpc ? bpc : 8;
+	}
+
+	if (requested_bpc > 0) {
+		/*
+		 * Cap display bpc based on the user requested value.
+		 *
+		 * The value for state->max_bpc may not correctly updated
+		 * depending on when the connector gets added to the state
+		 * or if this was called outside of atomic check, so it
+		 * can't be used directly.
+		 */
+		bpc = min_t(u8, bpc, requested_bpc);
+
+		/* Round down to the nearest even number. */
+		bpc = bpc - (bpc & 1);
+	}
+
+	switch (bpc) {
+	case 0:
+		/*
+		 * Temporary Work around, DRM doesn't parse color depth for
+		 * EDID revision before 1.4
+		 * TODO: Fix edid parsing
+		 */
+		return COLOR_DEPTH_888;
+	case 6:
+		return COLOR_DEPTH_666;
+	case 8:
+		return COLOR_DEPTH_888;
+	case 10:
+		return COLOR_DEPTH_101010;
+	case 12:
+		return COLOR_DEPTH_121212;
+	case 14:
+		return COLOR_DEPTH_141414;
+	case 16:
+		return COLOR_DEPTH_161616;
+	default:
+		return COLOR_DEPTH_UNDEFINED;
+	}
+}
+
+static enum dc_aspect_ratio
+get_aspect_ratio(const struct drm_display_mode *mode_in)
+{
+	/* 1-1 mapping, since both enums follow the HDMI spec. */
+	return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio;
+}
+
+static enum dc_color_space
+get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing,
+		       const struct drm_connector_state *connector_state)
+{
+	enum dc_color_space color_space = COLOR_SPACE_SRGB;
+
+	switch (connector_state->colorspace) {
+	case DRM_MODE_COLORIMETRY_BT601_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR601_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR601;
+		break;
+	case DRM_MODE_COLORIMETRY_BT709_YCC:
+		if (dc_crtc_timing->flags.Y_ONLY)
+			color_space = COLOR_SPACE_YCBCR709_LIMITED;
+		else
+			color_space = COLOR_SPACE_YCBCR709;
+		break;
+	case DRM_MODE_COLORIMETRY_OPRGB:
+		color_space = COLOR_SPACE_ADOBERGB;
+		break;
+	case DRM_MODE_COLORIMETRY_BT2020_RGB:
+	case DRM_MODE_COLORIMETRY_BT2020_YCC:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)
+			color_space = COLOR_SPACE_2020_RGB_FULLRANGE;
+		else
+			color_space = COLOR_SPACE_2020_YCBCR;
+		break;
+	case DRM_MODE_COLORIMETRY_DEFAULT: // ITU601
+	default:
+		if (dc_crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB) {
+			color_space = COLOR_SPACE_SRGB;
+		/*
+		 * 27030khz is the separation point between HDTV and SDTV
+		 * according to HDMI spec, we use YCbCr709 and YCbCr601
+		 * respectively
+		 */
+		} else if (dc_crtc_timing->pix_clk_100hz > 270300) {
+			if (dc_crtc_timing->flags.Y_ONLY)
+				color_space =
+					COLOR_SPACE_YCBCR709_LIMITED;
+			else
+				color_space = COLOR_SPACE_YCBCR709;
+		} else {
+			if (dc_crtc_timing->flags.Y_ONLY)
+				color_space =
+					COLOR_SPACE_YCBCR601_LIMITED;
+			else
+				color_space = COLOR_SPACE_YCBCR601;
+		}
+		break;
+	}
+
+	return color_space;
+}
+
+static bool adjust_colour_depth_from_display_info(
+	struct dc_crtc_timing *timing_out,
+	const struct drm_display_info *info)
+{
+	enum dc_color_depth depth = timing_out->display_color_depth;
+	int normalized_clk;
+
+	do {
+		normalized_clk = timing_out->pix_clk_100hz / 10;
+		/* YCbCr 4:2:0 requires additional adjustment of 1/2 */
+		if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+			normalized_clk /= 2;
+		/* Adjusting pix clock following on HDMI spec based on colour depth */
+		switch (depth) {
+		case COLOR_DEPTH_888:
+			break;
+		case COLOR_DEPTH_101010:
+			normalized_clk = (normalized_clk * 30) / 24;
+			break;
+		case COLOR_DEPTH_121212:
+			normalized_clk = (normalized_clk * 36) / 24;
+			break;
+		case COLOR_DEPTH_161616:
+			normalized_clk = (normalized_clk * 48) / 24;
+			break;
+		default:
+			/* The above depths are the only ones valid for HDMI. */
+			return false;
+		}
+		if (normalized_clk <= info->max_tmds_clock) {
+			timing_out->display_color_depth = depth;
+			return true;
+		}
+	} while (--depth > COLOR_DEPTH_666);
+	return false;
+}
+
+static void fill_stream_properties_from_drm_display_mode(
+	struct dc_stream_state *stream,
+	const struct drm_display_mode *mode_in,
+	const struct drm_connector *connector,
+	const struct drm_connector_state *connector_state,
+	const struct dc_stream_state *old_stream,
+	int requested_bpc)
+{
+	struct dc_crtc_timing *timing_out = &stream->timing;
+	const struct drm_display_info *info = &connector->display_info;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct hdmi_vendor_infoframe hv_frame;
+	struct hdmi_avi_infoframe avi_frame;
+
+	memset(&hv_frame, 0, sizeof(hv_frame));
+	memset(&avi_frame, 0, sizeof(avi_frame));
+
+	timing_out->h_border_left = 0;
+	timing_out->h_border_right = 0;
+	timing_out->v_border_top = 0;
+	timing_out->v_border_bottom = 0;
+	/* TODO: un-hardcode */
+	if (drm_mode_is_420_only(info, mode_in)
+			&& stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
+		timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
+	else if (drm_mode_is_420_also(info, mode_in)
+			&& aconnector->force_yuv420_output)
+		timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
+	else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR444)
+			&& stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
+		timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
+	else
+		timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
+
+	timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
+	timing_out->display_color_depth = convert_color_depth_from_display_info(
+		connector,
+		(timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420),
+		requested_bpc);
+	timing_out->scan_type = SCANNING_TYPE_NODATA;
+	timing_out->hdmi_vic = 0;
+
+	if (old_stream) {
+		timing_out->vic = old_stream->timing.vic;
+		timing_out->flags.HSYNC_POSITIVE_POLARITY = old_stream->timing.flags.HSYNC_POSITIVE_POLARITY;
+		timing_out->flags.VSYNC_POSITIVE_POLARITY = old_stream->timing.flags.VSYNC_POSITIVE_POLARITY;
+	} else {
+		timing_out->vic = drm_match_cea_mode(mode_in);
+		if (mode_in->flags & DRM_MODE_FLAG_PHSYNC)
+			timing_out->flags.HSYNC_POSITIVE_POLARITY = 1;
+		if (mode_in->flags & DRM_MODE_FLAG_PVSYNC)
+			timing_out->flags.VSYNC_POSITIVE_POLARITY = 1;
+	}
+
+	if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
+		drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, (struct drm_connector *)connector, mode_in);
+		timing_out->vic = avi_frame.video_code;
+		drm_hdmi_vendor_infoframe_from_display_mode(&hv_frame, (struct drm_connector *)connector, mode_in);
+		timing_out->hdmi_vic = hv_frame.vic;
+	}
+
+	if (is_freesync_video_mode(mode_in, aconnector)) {
+		timing_out->h_addressable = mode_in->hdisplay;
+		timing_out->h_total = mode_in->htotal;
+		timing_out->h_sync_width = mode_in->hsync_end - mode_in->hsync_start;
+		timing_out->h_front_porch = mode_in->hsync_start - mode_in->hdisplay;
+		timing_out->v_total = mode_in->vtotal;
+		timing_out->v_addressable = mode_in->vdisplay;
+		timing_out->v_front_porch = mode_in->vsync_start - mode_in->vdisplay;
+		timing_out->v_sync_width = mode_in->vsync_end - mode_in->vsync_start;
+		timing_out->pix_clk_100hz = mode_in->clock * 10;
+	} else {
+		timing_out->h_addressable = mode_in->crtc_hdisplay;
+		timing_out->h_total = mode_in->crtc_htotal;
+		timing_out->h_sync_width = mode_in->crtc_hsync_end - mode_in->crtc_hsync_start;
+		timing_out->h_front_porch = mode_in->crtc_hsync_start - mode_in->crtc_hdisplay;
+		timing_out->v_total = mode_in->crtc_vtotal;
+		timing_out->v_addressable = mode_in->crtc_vdisplay;
+		timing_out->v_front_porch = mode_in->crtc_vsync_start - mode_in->crtc_vdisplay;
+		timing_out->v_sync_width = mode_in->crtc_vsync_end - mode_in->crtc_vsync_start;
+		timing_out->pix_clk_100hz = mode_in->crtc_clock * 10;
+	}
+
+	timing_out->aspect_ratio = get_aspect_ratio(mode_in);
+
+	stream->out_transfer_func->type = TF_TYPE_PREDEFINED;
+	stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB;
+	if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
+		if (!adjust_colour_depth_from_display_info(timing_out, info) &&
+		    drm_mode_is_420_also(info, mode_in) &&
+		    timing_out->pixel_encoding != PIXEL_ENCODING_YCBCR420) {
+			timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
+			adjust_colour_depth_from_display_info(timing_out, info);
+		}
+	}
+
+	stream->output_color_space = get_output_color_space(timing_out, connector_state);
+}
+
+static void fill_audio_info(struct audio_info *audio_info,
+			    const struct drm_connector *drm_connector,
+			    const struct dc_sink *dc_sink)
+{
+	int i = 0;
+	int cea_revision = 0;
+	const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
+
+	audio_info->manufacture_id = edid_caps->manufacturer_id;
+	audio_info->product_id = edid_caps->product_id;
+
+	cea_revision = drm_connector->display_info.cea_rev;
+
+	strscpy(audio_info->display_name,
+		edid_caps->display_name,
+		AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
+
+	if (cea_revision >= 3) {
+		audio_info->mode_count = edid_caps->audio_mode_count;
+
+		for (i = 0; i < audio_info->mode_count; ++i) {
+			audio_info->modes[i].format_code =
+					(enum audio_format_code)
+					(edid_caps->audio_modes[i].format_code);
+			audio_info->modes[i].channel_count =
+					edid_caps->audio_modes[i].channel_count;
+			audio_info->modes[i].sample_rates.all =
+					edid_caps->audio_modes[i].sample_rate;
+			audio_info->modes[i].sample_size =
+					edid_caps->audio_modes[i].sample_size;
+		}
+	}
+
+	audio_info->flags.all = edid_caps->speaker_flags;
+
+	/* TODO: We only check for the progressive mode, check for interlace mode too */
+	if (drm_connector->latency_present[0]) {
+		audio_info->video_latency = drm_connector->video_latency[0];
+		audio_info->audio_latency = drm_connector->audio_latency[0];
+	}
+
+	/* TODO: For DP, video and audio latency should be calculated from DPCD caps */
+
+}
+
+static void
+copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
+				      struct drm_display_mode *dst_mode)
+{
+	dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay;
+	dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay;
+	dst_mode->crtc_clock = src_mode->crtc_clock;
+	dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start;
+	dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end;
+	dst_mode->crtc_hsync_start =  src_mode->crtc_hsync_start;
+	dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end;
+	dst_mode->crtc_htotal = src_mode->crtc_htotal;
+	dst_mode->crtc_hskew = src_mode->crtc_hskew;
+	dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start;
+	dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end;
+	dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start;
+	dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end;
+	dst_mode->crtc_vtotal = src_mode->crtc_vtotal;
+}
+
+static void
+decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode,
+					const struct drm_display_mode *native_mode,
+					bool scale_enabled)
+{
+	if (scale_enabled) {
+		copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
+	} else if (native_mode->clock == drm_mode->clock &&
+			native_mode->htotal == drm_mode->htotal &&
+			native_mode->vtotal == drm_mode->vtotal) {
+		copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
+	} else {
+		/* no scaling nor amdgpu inserted, no need to patch */
+	}
+}
+
+static struct dc_sink *
+create_fake_sink(struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_sink_init_data sink_init_data = { 0 };
+	struct dc_sink *sink = NULL;
+
+	sink_init_data.link = aconnector->dc_link;
+	sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
+
+	sink = dc_sink_create(&sink_init_data);
+	if (!sink) {
+		DRM_ERROR("Failed to create sink!\n");
+		return NULL;
+	}
+	sink->sink_signal = SIGNAL_TYPE_VIRTUAL;
+
+	return sink;
+}
+
+static void set_multisync_trigger_params(
+		struct dc_stream_state *stream)
+{
+	struct dc_stream_state *master = NULL;
+
+	if (stream->triggered_crtc_reset.enabled) {
+		master = stream->triggered_crtc_reset.event_source;
+		stream->triggered_crtc_reset.event =
+			master->timing.flags.VSYNC_POSITIVE_POLARITY ?
+			CRTC_EVENT_VSYNC_RISING : CRTC_EVENT_VSYNC_FALLING;
+		stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_PIXEL;
+	}
+}
+
+static void set_master_stream(struct dc_stream_state *stream_set[],
+			      int stream_count)
+{
+	int j, highest_rfr = 0, master_stream = 0;
+
+	for (j = 0;  j < stream_count; j++) {
+		if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) {
+			int refresh_rate = 0;
+
+			refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/
+				(stream_set[j]->timing.h_total*stream_set[j]->timing.v_total);
+			if (refresh_rate > highest_rfr) {
+				highest_rfr = refresh_rate;
+				master_stream = j;
+			}
+		}
+	}
+	for (j = 0;  j < stream_count; j++) {
+		if (stream_set[j])
+			stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream];
+	}
+}
+
+static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context)
+{
+	int i = 0;
+	struct dc_stream_state *stream;
+
+	if (context->stream_count < 2)
+		return;
+	for (i = 0; i < context->stream_count ; i++) {
+		if (!context->streams[i])
+			continue;
+		/*
+		 * TODO: add a function to read AMD VSDB bits and set
+		 * crtc_sync_master.multi_sync_enabled flag
+		 * For now it's set to false
+		 */
+	}
+
+	set_master_stream(context->streams, context->stream_count);
+
+	for (i = 0; i < context->stream_count ; i++) {
+		stream = context->streams[i];
+
+		if (!stream)
+			continue;
+
+		set_multisync_trigger_params(stream);
+	}
+}
+
+/**
+ * DOC: FreeSync Video
+ *
+ * When a userspace application wants to play a video, the content follows a
+ * standard format definition that usually specifies the FPS for that format.
+ * The below list illustrates some video format and the expected FPS,
+ * respectively:
+ *
+ * - TV/NTSC (23.976 FPS)
+ * - Cinema (24 FPS)
+ * - TV/PAL (25 FPS)
+ * - TV/NTSC (29.97 FPS)
+ * - TV/NTSC (30 FPS)
+ * - Cinema HFR (48 FPS)
+ * - TV/PAL (50 FPS)
+ * - Commonly used (60 FPS)
+ * - Multiples of 24 (48,72,96 FPS)
+ *
+ * The list of standards video format is not huge and can be added to the
+ * connector modeset list beforehand. With that, userspace can leverage
+ * FreeSync to extends the front porch in order to attain the target refresh
+ * rate. Such a switch will happen seamlessly, without screen blanking or
+ * reprogramming of the output in any other way. If the userspace requests a
+ * modesetting change compatible with FreeSync modes that only differ in the
+ * refresh rate, DC will skip the full update and avoid blink during the
+ * transition. For example, the video player can change the modesetting from
+ * 60Hz to 30Hz for playing TV/NTSC content when it goes full screen without
+ * causing any display blink. This same concept can be applied to a mode
+ * setting change.
+ */
+static struct drm_display_mode *
+get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector,
+		bool use_probed_modes)
+{
+	struct drm_display_mode *m, *m_pref = NULL;
+	u16 current_refresh, highest_refresh;
+	struct list_head *list_head = use_probed_modes ?
+		&aconnector->base.probed_modes :
+		&aconnector->base.modes;
+
+	if (aconnector->freesync_vid_base.clock != 0)
+		return &aconnector->freesync_vid_base;
+
+	/* Find the preferred mode */
+	list_for_each_entry(m, list_head, head) {
+		if (m->type & DRM_MODE_TYPE_PREFERRED) {
+			m_pref = m;
+			break;
+		}
+	}
+
+	if (!m_pref) {
+		/* Probably an EDID with no preferred mode. Fallback to first entry */
+		m_pref = list_first_entry_or_null(
+				&aconnector->base.modes, struct drm_display_mode, head);
+		if (!m_pref) {
+			DRM_DEBUG_DRIVER("No preferred mode found in EDID\n");
+			return NULL;
+		}
+	}
+
+	highest_refresh = drm_mode_vrefresh(m_pref);
+
+	/*
+	 * Find the mode with highest refresh rate with same resolution.
+	 * For some monitors, preferred mode is not the mode with highest
+	 * supported refresh rate.
+	 */
+	list_for_each_entry(m, list_head, head) {
+		current_refresh  = drm_mode_vrefresh(m);
+
+		if (m->hdisplay == m_pref->hdisplay &&
+		    m->vdisplay == m_pref->vdisplay &&
+		    highest_refresh < current_refresh) {
+			highest_refresh = current_refresh;
+			m_pref = m;
+		}
+	}
+
+	drm_mode_copy(&aconnector->freesync_vid_base, m_pref);
+	return m_pref;
+}
+
+static bool is_freesync_video_mode(const struct drm_display_mode *mode,
+		struct amdgpu_dm_connector *aconnector)
+{
+	struct drm_display_mode *high_mode;
+	int timing_diff;
+
+	high_mode = get_highest_refresh_rate_mode(aconnector, false);
+	if (!high_mode || !mode)
+		return false;
+
+	timing_diff = high_mode->vtotal - mode->vtotal;
+
+	if (high_mode->clock == 0 || high_mode->clock != mode->clock ||
+	    high_mode->hdisplay != mode->hdisplay ||
+	    high_mode->vdisplay != mode->vdisplay ||
+	    high_mode->hsync_start != mode->hsync_start ||
+	    high_mode->hsync_end != mode->hsync_end ||
+	    high_mode->htotal != mode->htotal ||
+	    high_mode->hskew != mode->hskew ||
+	    high_mode->vscan != mode->vscan ||
+	    high_mode->vsync_start - mode->vsync_start != timing_diff ||
+	    high_mode->vsync_end - mode->vsync_end != timing_diff)
+		return false;
+	else
+		return true;
+}
+
+static void update_dsc_caps(struct amdgpu_dm_connector *aconnector,
+			    struct dc_sink *sink, struct dc_stream_state *stream,
+			    struct dsc_dec_dpcd_caps *dsc_caps)
+{
+	stream->timing.flags.DSC = 0;
+	dsc_caps->is_dsc_supported = false;
+
+	if (aconnector->dc_link && (sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT ||
+	    sink->sink_signal == SIGNAL_TYPE_EDP)) {
+		if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE ||
+			sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER)
+			dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
+				aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw,
+				aconnector->dc_link->dpcd_caps.dsc_caps.dsc_branch_decoder_caps.raw,
+				dsc_caps);
+	}
+}
+
+
+static void apply_dsc_policy_for_edp(struct amdgpu_dm_connector *aconnector,
+				    struct dc_sink *sink, struct dc_stream_state *stream,
+				    struct dsc_dec_dpcd_caps *dsc_caps,
+				    uint32_t max_dsc_target_bpp_limit_override)
+{
+	const struct dc_link_settings *verified_link_cap = NULL;
+	u32 link_bw_in_kbps;
+	u32 edp_min_bpp_x16, edp_max_bpp_x16;
+	struct dc *dc = sink->ctx->dc;
+	struct dc_dsc_bw_range bw_range = {0};
+	struct dc_dsc_config dsc_cfg = {0};
+	struct dc_dsc_config_options dsc_options = {0};
+
+	dc_dsc_get_default_config_option(dc, &dsc_options);
+	dsc_options.max_target_bpp_limit_override_x16 = max_dsc_target_bpp_limit_override * 16;
+
+	verified_link_cap = dc_link_get_link_cap(stream->link);
+	link_bw_in_kbps = dc_link_bandwidth_kbps(stream->link, verified_link_cap);
+	edp_min_bpp_x16 = 8 * 16;
+	edp_max_bpp_x16 = 8 * 16;
+
+	if (edp_max_bpp_x16 > dsc_caps->edp_max_bits_per_pixel)
+		edp_max_bpp_x16 = dsc_caps->edp_max_bits_per_pixel;
+
+	if (edp_max_bpp_x16 < edp_min_bpp_x16)
+		edp_min_bpp_x16 = edp_max_bpp_x16;
+
+	if (dc_dsc_compute_bandwidth_range(dc->res_pool->dscs[0],
+				dc->debug.dsc_min_slice_height_override,
+				edp_min_bpp_x16, edp_max_bpp_x16,
+				dsc_caps,
+				&stream->timing,
+				dc_link_get_highest_encoding_format(aconnector->dc_link),
+				&bw_range)) {
+
+		if (bw_range.max_kbps < link_bw_in_kbps) {
+			if (dc_dsc_compute_config(dc->res_pool->dscs[0],
+					dsc_caps,
+					&dsc_options,
+					0,
+					&stream->timing,
+					dc_link_get_highest_encoding_format(aconnector->dc_link),
+					&dsc_cfg)) {
+				stream->timing.dsc_cfg = dsc_cfg;
+				stream->timing.flags.DSC = 1;
+				stream->timing.dsc_cfg.bits_per_pixel = edp_max_bpp_x16;
+			}
+			return;
+		}
+	}
+
+	if (dc_dsc_compute_config(dc->res_pool->dscs[0],
+				dsc_caps,
+				&dsc_options,
+				link_bw_in_kbps,
+				&stream->timing,
+				dc_link_get_highest_encoding_format(aconnector->dc_link),
+				&dsc_cfg)) {
+		stream->timing.dsc_cfg = dsc_cfg;
+		stream->timing.flags.DSC = 1;
+	}
+}
+
+
+static void apply_dsc_policy_for_stream(struct amdgpu_dm_connector *aconnector,
+					struct dc_sink *sink, struct dc_stream_state *stream,
+					struct dsc_dec_dpcd_caps *dsc_caps)
+{
+	struct drm_connector *drm_connector = &aconnector->base;
+	u32 link_bandwidth_kbps;
+	struct dc *dc = sink->ctx->dc;
+	u32 max_supported_bw_in_kbps, timing_bw_in_kbps;
+	u32 dsc_max_supported_bw_in_kbps;
+	u32 max_dsc_target_bpp_limit_override =
+		drm_connector->display_info.max_dsc_bpp;
+	struct dc_dsc_config_options dsc_options = {0};
+
+	dc_dsc_get_default_config_option(dc, &dsc_options);
+	dsc_options.max_target_bpp_limit_override_x16 = max_dsc_target_bpp_limit_override * 16;
+
+	link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
+							dc_link_get_link_cap(aconnector->dc_link));
+
+	/* Set DSC policy according to dsc_clock_en */
+	dc_dsc_policy_set_enable_dsc_when_not_needed(
+		aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE);
+
+	if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_EDP &&
+	    !aconnector->dc_link->panel_config.dsc.disable_dsc_edp &&
+	    dc->caps.edp_dsc_support && aconnector->dsc_settings.dsc_force_enable != DSC_CLK_FORCE_DISABLE) {
+
+		apply_dsc_policy_for_edp(aconnector, sink, stream, dsc_caps, max_dsc_target_bpp_limit_override);
+
+	} else if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
+		if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE) {
+			if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
+						dsc_caps,
+						&dsc_options,
+						link_bandwidth_kbps,
+						&stream->timing,
+						dc_link_get_highest_encoding_format(aconnector->dc_link),
+						&stream->timing.dsc_cfg)) {
+				stream->timing.flags.DSC = 1;
+				DRM_DEBUG_DRIVER("%s: [%s] DSC is selected from SST RX\n", __func__, drm_connector->name);
+			}
+		} else if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER) {
+			timing_bw_in_kbps = dc_bandwidth_in_kbps_from_timing(&stream->timing,
+					dc_link_get_highest_encoding_format(aconnector->dc_link));
+			max_supported_bw_in_kbps = link_bandwidth_kbps;
+			dsc_max_supported_bw_in_kbps = link_bandwidth_kbps;
+
+			if (timing_bw_in_kbps > max_supported_bw_in_kbps &&
+					max_supported_bw_in_kbps > 0 &&
+					dsc_max_supported_bw_in_kbps > 0)
+				if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
+						dsc_caps,
+						&dsc_options,
+						dsc_max_supported_bw_in_kbps,
+						&stream->timing,
+						dc_link_get_highest_encoding_format(aconnector->dc_link),
+						&stream->timing.dsc_cfg)) {
+					stream->timing.flags.DSC = 1;
+					DRM_DEBUG_DRIVER("%s: [%s] DSC is selected from DP-HDMI PCON\n",
+									 __func__, drm_connector->name);
+				}
+		}
+	}
+
+	/* Overwrite the stream flag if DSC is enabled through debugfs */
+	if (aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE)
+		stream->timing.flags.DSC = 1;
+
+	if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_num_slices_h)
+		stream->timing.dsc_cfg.num_slices_h = aconnector->dsc_settings.dsc_num_slices_h;
+
+	if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_num_slices_v)
+		stream->timing.dsc_cfg.num_slices_v = aconnector->dsc_settings.dsc_num_slices_v;
+
+	if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_bits_per_pixel)
+		stream->timing.dsc_cfg.bits_per_pixel = aconnector->dsc_settings.dsc_bits_per_pixel;
+}
+
+static struct dc_stream_state *
+create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+		       const struct drm_display_mode *drm_mode,
+		       const struct dm_connector_state *dm_state,
+		       const struct dc_stream_state *old_stream,
+		       int requested_bpc)
+{
+	struct drm_display_mode *preferred_mode = NULL;
+	struct drm_connector *drm_connector;
+	const struct drm_connector_state *con_state = &dm_state->base;
+	struct dc_stream_state *stream = NULL;
+	struct drm_display_mode mode;
+	struct drm_display_mode saved_mode;
+	struct drm_display_mode *freesync_mode = NULL;
+	bool native_mode_found = false;
+	bool recalculate_timing = false;
+	bool scale = dm_state->scaling != RMX_OFF;
+	int mode_refresh;
+	int preferred_refresh = 0;
+	enum color_transfer_func tf = TRANSFER_FUNC_UNKNOWN;
+	struct dsc_dec_dpcd_caps dsc_caps;
+
+	struct dc_sink *sink = NULL;
+
+	drm_mode_init(&mode, drm_mode);
+	memset(&saved_mode, 0, sizeof(saved_mode));
+
+	if (aconnector == NULL) {
+		DRM_ERROR("aconnector is NULL!\n");
+		return stream;
+	}
+
+	drm_connector = &aconnector->base;
+
+	if (!aconnector->dc_sink) {
+		sink = create_fake_sink(aconnector);
+		if (!sink)
+			return stream;
+	} else {
+		sink = aconnector->dc_sink;
+		dc_sink_retain(sink);
+	}
+
+	stream = dc_create_stream_for_sink(sink);
+
+	if (stream == NULL) {
+		DRM_ERROR("Failed to create stream for sink!\n");
+		goto finish;
+	}
+
+	stream->dm_stream_context = aconnector;
+
+	stream->timing.flags.LTE_340MCSC_SCRAMBLE =
+		drm_connector->display_info.hdmi.scdc.scrambling.low_rates;
+
+	list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
+		/* Search for preferred mode */
+		if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) {
+			native_mode_found = true;
+			break;
+		}
+	}
+	if (!native_mode_found)
+		preferred_mode = list_first_entry_or_null(
+				&aconnector->base.modes,
+				struct drm_display_mode,
+				head);
+
+	mode_refresh = drm_mode_vrefresh(&mode);
+
+	if (preferred_mode == NULL) {
+		/*
+		 * This may not be an error, the use case is when we have no
+		 * usermode calls to reset and set mode upon hotplug. In this
+		 * case, we call set mode ourselves to restore the previous mode
+		 * and the modelist may not be filled in time.
+		 */
+		DRM_DEBUG_DRIVER("No preferred mode found\n");
+	} else {
+		recalculate_timing = is_freesync_video_mode(&mode, aconnector);
+		if (recalculate_timing) {
+			freesync_mode = get_highest_refresh_rate_mode(aconnector, false);
+			drm_mode_copy(&saved_mode, &mode);
+			drm_mode_copy(&mode, freesync_mode);
+		} else {
+			decide_crtc_timing_for_drm_display_mode(
+					&mode, preferred_mode, scale);
+
+			preferred_refresh = drm_mode_vrefresh(preferred_mode);
+		}
+	}
+
+	if (recalculate_timing)
+		drm_mode_set_crtcinfo(&saved_mode, 0);
+
+	/*
+	 * If scaling is enabled and refresh rate didn't change
+	 * we copy the vic and polarities of the old timings
+	 */
+	if (!scale || mode_refresh != preferred_refresh)
+		fill_stream_properties_from_drm_display_mode(
+			stream, &mode, &aconnector->base, con_state, NULL,
+			requested_bpc);
+	else
+		fill_stream_properties_from_drm_display_mode(
+			stream, &mode, &aconnector->base, con_state, old_stream,
+			requested_bpc);
+
+	if (aconnector->timing_changed) {
+		DC_LOG_DEBUG("%s: overriding timing for automated test, bpc %d, changing to %d\n",
+				__func__,
+				stream->timing.display_color_depth,
+				aconnector->timing_requested->display_color_depth);
+		stream->timing = *aconnector->timing_requested;
+	}
+
+	/* SST DSC determination policy */
+	update_dsc_caps(aconnector, sink, stream, &dsc_caps);
+	if (aconnector->dsc_settings.dsc_force_enable != DSC_CLK_FORCE_DISABLE && dsc_caps.is_dsc_supported)
+		apply_dsc_policy_for_stream(aconnector, sink, stream, &dsc_caps);
+
+	update_stream_scaling_settings(&mode, dm_state, stream);
+
+	fill_audio_info(
+		&stream->audio_info,
+		drm_connector,
+		sink);
+
+	update_stream_signal(stream, sink);
+
+	if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
+		mod_build_hf_vsif_infopacket(stream, &stream->vsp_infopacket);
+	else if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT ||
+			 stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
+			 stream->signal == SIGNAL_TYPE_EDP) {
+		//
+		// should decide stream support vsc sdp colorimetry capability
+		// before building vsc info packet
+		//
+		stream->use_vsc_sdp_for_colorimetry = false;
+		if (aconnector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
+			stream->use_vsc_sdp_for_colorimetry =
+				aconnector->dc_sink->is_vsc_sdp_colorimetry_supported;
+		} else {
+			if (stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED)
+				stream->use_vsc_sdp_for_colorimetry = true;
+		}
+		if (stream->out_transfer_func->tf == TRANSFER_FUNCTION_GAMMA22)
+			tf = TRANSFER_FUNC_GAMMA_22;
+		mod_build_vsc_infopacket(stream, &stream->vsc_infopacket, stream->output_color_space, tf);
+
+		if (stream->link->psr_settings.psr_feature_enabled)
+			aconnector->psr_skip_count = AMDGPU_DM_PSR_ENTRY_DELAY;
+	}
+finish:
+	dc_sink_release(sink);
+
+	return stream;
+}
+
+static enum drm_connector_status
+amdgpu_dm_connector_detect(struct drm_connector *connector, bool force)
+{
+	bool connected;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+	/*
+	 * Notes:
+	 * 1. This interface is NOT called in context of HPD irq.
+	 * 2. This interface *is called* in context of user-mode ioctl. Which
+	 * makes it a bad place for *any* MST-related activity.
+	 */
+
+	if (aconnector->base.force == DRM_FORCE_UNSPECIFIED &&
+	    !aconnector->fake_enable)
+		connected = (aconnector->dc_sink != NULL);
+	else
+		connected = (aconnector->base.force == DRM_FORCE_ON ||
+				aconnector->base.force == DRM_FORCE_ON_DIGITAL);
+
+	update_subconnector_property(aconnector);
+
+	return (connected ? connector_status_connected :
+			connector_status_disconnected);
+}
+
+int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
+					    struct drm_connector_state *connector_state,
+					    struct drm_property *property,
+					    uint64_t val)
+{
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dm_connector_state *dm_old_state =
+		to_dm_connector_state(connector->state);
+	struct dm_connector_state *dm_new_state =
+		to_dm_connector_state(connector_state);
+
+	int ret = -EINVAL;
+
+	if (property == dev->mode_config.scaling_mode_property) {
+		enum amdgpu_rmx_type rmx_type;
+
+		switch (val) {
+		case DRM_MODE_SCALE_CENTER:
+			rmx_type = RMX_CENTER;
+			break;
+		case DRM_MODE_SCALE_ASPECT:
+			rmx_type = RMX_ASPECT;
+			break;
+		case DRM_MODE_SCALE_FULLSCREEN:
+			rmx_type = RMX_FULL;
+			break;
+		case DRM_MODE_SCALE_NONE:
+		default:
+			rmx_type = RMX_OFF;
+			break;
+		}
+
+		if (dm_old_state->scaling == rmx_type)
+			return 0;
+
+		dm_new_state->scaling = rmx_type;
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_hborder_property) {
+		dm_new_state->underscan_hborder = val;
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_vborder_property) {
+		dm_new_state->underscan_vborder = val;
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_property) {
+		dm_new_state->underscan_enable = val;
+		ret = 0;
+	} else if (property == adev->mode_info.abm_level_property) {
+		dm_new_state->abm_level = val ?: ABM_LEVEL_IMMEDIATE_DISABLE;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
+					    const struct drm_connector_state *state,
+					    struct drm_property *property,
+					    uint64_t *val)
+{
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dm_connector_state *dm_state =
+		to_dm_connector_state(state);
+	int ret = -EINVAL;
+
+	if (property == dev->mode_config.scaling_mode_property) {
+		switch (dm_state->scaling) {
+		case RMX_CENTER:
+			*val = DRM_MODE_SCALE_CENTER;
+			break;
+		case RMX_ASPECT:
+			*val = DRM_MODE_SCALE_ASPECT;
+			break;
+		case RMX_FULL:
+			*val = DRM_MODE_SCALE_FULLSCREEN;
+			break;
+		case RMX_OFF:
+		default:
+			*val = DRM_MODE_SCALE_NONE;
+			break;
+		}
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_hborder_property) {
+		*val = dm_state->underscan_hborder;
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_vborder_property) {
+		*val = dm_state->underscan_vborder;
+		ret = 0;
+	} else if (property == adev->mode_info.underscan_property) {
+		*val = dm_state->underscan_enable;
+		ret = 0;
+	} else if (property == adev->mode_info.abm_level_property) {
+		*val = (dm_state->abm_level != ABM_LEVEL_IMMEDIATE_DISABLE) ?
+			dm_state->abm_level : 0;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+static void amdgpu_dm_connector_unregister(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector);
+
+	drm_dp_aux_unregister(&amdgpu_dm_connector->dm_dp_aux.aux);
+}
+
+static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct amdgpu_device *adev = drm_to_adev(connector->dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+
+	/*
+	 * Call only if mst_mgr was initialized before since it's not done
+	 * for all connector types.
+	 */
+	if (aconnector->mst_mgr.dev)
+		drm_dp_mst_topology_mgr_destroy(&aconnector->mst_mgr);
+
+	if (aconnector->bl_idx != -1) {
+		backlight_device_unregister(dm->backlight_dev[aconnector->bl_idx]);
+		dm->backlight_dev[aconnector->bl_idx] = NULL;
+	}
+
+	if (aconnector->dc_em_sink)
+		dc_sink_release(aconnector->dc_em_sink);
+	aconnector->dc_em_sink = NULL;
+	if (aconnector->dc_sink)
+		dc_sink_release(aconnector->dc_sink);
+	aconnector->dc_sink = NULL;
+
+	drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux);
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+	if (aconnector->i2c) {
+		i2c_del_adapter(&aconnector->i2c->base);
+		kfree(aconnector->i2c);
+	}
+	kfree(aconnector->dm_dp_aux.aux.name);
+
+	kfree(connector);
+}
+
+void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
+{
+	struct dm_connector_state *state =
+		to_dm_connector_state(connector->state);
+
+	if (connector->state)
+		__drm_atomic_helper_connector_destroy_state(connector->state);
+
+	kfree(state);
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+
+	if (state) {
+		state->scaling = RMX_OFF;
+		state->underscan_enable = false;
+		state->underscan_hborder = 0;
+		state->underscan_vborder = 0;
+		state->base.max_requested_bpc = 8;
+		state->vcpi_slots = 0;
+		state->pbn = 0;
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+			state->abm_level = amdgpu_dm_abm_level ?:
+				ABM_LEVEL_IMMEDIATE_DISABLE;
+
+		__drm_atomic_helper_connector_reset(connector, &state->base);
+	}
+}
+
+struct drm_connector_state *
+amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
+{
+	struct dm_connector_state *state =
+		to_dm_connector_state(connector->state);
+
+	struct dm_connector_state *new_state =
+			kmemdup(state, sizeof(*state), GFP_KERNEL);
+
+	if (!new_state)
+		return NULL;
+
+	__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
+
+	new_state->freesync_capable = state->freesync_capable;
+	new_state->abm_level = state->abm_level;
+	new_state->scaling = state->scaling;
+	new_state->underscan_enable = state->underscan_enable;
+	new_state->underscan_hborder = state->underscan_hborder;
+	new_state->underscan_vborder = state->underscan_vborder;
+	new_state->vcpi_slots = state->vcpi_slots;
+	new_state->pbn = state->pbn;
+	return &new_state->base;
+}
+
+static int
+amdgpu_dm_connector_late_register(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+		to_amdgpu_dm_connector(connector);
+	int r;
+
+	amdgpu_dm_register_backlight_device(amdgpu_dm_connector);
+
+	if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
+	    (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
+		amdgpu_dm_connector->dm_dp_aux.aux.dev = connector->kdev;
+		r = drm_dp_aux_register(&amdgpu_dm_connector->dm_dp_aux.aux);
+		if (r)
+			return r;
+	}
+
+#if defined(CONFIG_DEBUG_FS)
+	connector_debugfs_init(amdgpu_dm_connector);
+#endif
+
+	return 0;
+}
+
+static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dc_link *dc_link = aconnector->dc_link;
+	struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
+	struct edid *edid;
+
+	if (!connector->edid_override)
+		return;
+
+	drm_edid_override_connector_update(&aconnector->base);
+	edid = aconnector->base.edid_blob_ptr->data;
+	aconnector->edid = edid;
+
+	/* Update emulated (virtual) sink's EDID */
+	if (dc_em_sink && dc_link) {
+		memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps));
+		memmove(dc_em_sink->dc_edid.raw_edid, edid, (edid->extensions + 1) * EDID_LENGTH);
+		dm_helpers_parse_edid_caps(
+			dc_link,
+			&dc_em_sink->dc_edid,
+			&dc_em_sink->edid_caps);
+	}
+}
+
+static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
+	.reset = amdgpu_dm_connector_funcs_reset,
+	.detect = amdgpu_dm_connector_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = amdgpu_dm_connector_destroy,
+	.atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+	.atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+	.atomic_get_property = amdgpu_dm_connector_atomic_get_property,
+	.late_register = amdgpu_dm_connector_late_register,
+	.early_unregister = amdgpu_dm_connector_unregister,
+	.force = amdgpu_dm_connector_funcs_force
+};
+
+static int get_modes(struct drm_connector *connector)
+{
+	return amdgpu_dm_connector_get_modes(connector);
+}
+
+static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_sink_init_data init_params = {
+			.link = aconnector->dc_link,
+			.sink_signal = SIGNAL_TYPE_VIRTUAL
+	};
+	struct edid *edid;
+
+	if (!aconnector->base.edid_blob_ptr) {
+		/* if connector->edid_override valid, pass
+		 * it to edid_override to edid_blob_ptr
+		 */
+
+		drm_edid_override_connector_update(&aconnector->base);
+
+		if (!aconnector->base.edid_blob_ptr) {
+			DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
+					aconnector->base.name);
+
+			aconnector->base.force = DRM_FORCE_OFF;
+			return;
+		}
+	}
+
+	edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
+
+	aconnector->edid = edid;
+
+	aconnector->dc_em_sink = dc_link_add_remote_sink(
+		aconnector->dc_link,
+		(uint8_t *)edid,
+		(edid->extensions + 1) * EDID_LENGTH,
+		&init_params);
+
+	if (aconnector->base.force == DRM_FORCE_ON) {
+		aconnector->dc_sink = aconnector->dc_link->local_sink ?
+		aconnector->dc_link->local_sink :
+		aconnector->dc_em_sink;
+		dc_sink_retain(aconnector->dc_sink);
+	}
+}
+
+static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_link *link = (struct dc_link *)aconnector->dc_link;
+
+	/*
+	 * In case of headless boot with force on for DP managed connector
+	 * Those settings have to be != 0 to get initial modeset
+	 */
+	if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) {
+		link->verified_link_cap.lane_count = LANE_COUNT_FOUR;
+		link->verified_link_cap.link_rate = LINK_RATE_HIGH2;
+	}
+
+	create_eml_sink(aconnector);
+}
+
+static enum dc_status dm_validate_stream_and_context(struct dc *dc,
+						struct dc_stream_state *stream)
+{
+	enum dc_status dc_result = DC_ERROR_UNEXPECTED;
+	struct dc_plane_state *dc_plane_state = NULL;
+	struct dc_state *dc_state = NULL;
+
+	if (!stream)
+		goto cleanup;
+
+	dc_plane_state = dc_create_plane_state(dc);
+	if (!dc_plane_state)
+		goto cleanup;
+
+	dc_state = dc_create_state(dc);
+	if (!dc_state)
+		goto cleanup;
+
+	/* populate stream to plane */
+	dc_plane_state->src_rect.height  = stream->src.height;
+	dc_plane_state->src_rect.width   = stream->src.width;
+	dc_plane_state->dst_rect.height  = stream->src.height;
+	dc_plane_state->dst_rect.width   = stream->src.width;
+	dc_plane_state->clip_rect.height = stream->src.height;
+	dc_plane_state->clip_rect.width  = stream->src.width;
+	dc_plane_state->plane_size.surface_pitch = ((stream->src.width + 255) / 256) * 256;
+	dc_plane_state->plane_size.surface_size.height = stream->src.height;
+	dc_plane_state->plane_size.surface_size.width  = stream->src.width;
+	dc_plane_state->plane_size.chroma_size.height  = stream->src.height;
+	dc_plane_state->plane_size.chroma_size.width   = stream->src.width;
+	dc_plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
+	dc_plane_state->tiling_info.gfx9.swizzle = DC_SW_UNKNOWN;
+	dc_plane_state->rotation = ROTATION_ANGLE_0;
+	dc_plane_state->is_tiling_rotated = false;
+	dc_plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_LINEAR_GENERAL;
+
+	dc_result = dc_validate_stream(dc, stream);
+	if (dc_result == DC_OK)
+		dc_result = dc_validate_plane(dc, dc_plane_state);
+
+	if (dc_result == DC_OK)
+		dc_result = dc_add_stream_to_ctx(dc, dc_state, stream);
+
+	if (dc_result == DC_OK && !dc_add_plane_to_context(
+						dc,
+						stream,
+						dc_plane_state,
+						dc_state))
+		dc_result = DC_FAIL_ATTACH_SURFACES;
+
+	if (dc_result == DC_OK)
+		dc_result = dc_validate_global_state(dc, dc_state, true);
+
+cleanup:
+	if (dc_state)
+		dc_release_state(dc_state);
+
+	if (dc_plane_state)
+		dc_plane_state_release(dc_plane_state);
+
+	return dc_result;
+}
+
+struct dc_stream_state *
+create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+				const struct drm_display_mode *drm_mode,
+				const struct dm_connector_state *dm_state,
+				const struct dc_stream_state *old_stream)
+{
+	struct drm_connector *connector = &aconnector->base;
+	struct amdgpu_device *adev = drm_to_adev(connector->dev);
+	struct dc_stream_state *stream;
+	const struct drm_connector_state *drm_state = dm_state ? &dm_state->base : NULL;
+	int requested_bpc = drm_state ? drm_state->max_requested_bpc : 8;
+	enum dc_status dc_result = DC_OK;
+
+	do {
+		stream = create_stream_for_sink(aconnector, drm_mode,
+						dm_state, old_stream,
+						requested_bpc);
+		if (stream == NULL) {
+			DRM_ERROR("Failed to create stream for sink!\n");
+			break;
+		}
+
+		dc_result = dc_validate_stream(adev->dm.dc, stream);
+		if (dc_result == DC_OK && stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
+			dc_result = dm_dp_mst_is_port_support_mode(aconnector, stream);
+
+		if (dc_result == DC_OK)
+			dc_result = dm_validate_stream_and_context(adev->dm.dc, stream);
+
+		if (dc_result != DC_OK) {
+			DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d (%s)\n",
+				      drm_mode->hdisplay,
+				      drm_mode->vdisplay,
+				      drm_mode->clock,
+				      dc_result,
+				      dc_status_to_str(dc_result));
+
+			dc_stream_release(stream);
+			stream = NULL;
+			requested_bpc -= 2; /* lower bpc to retry validation */
+		}
+
+	} while (stream == NULL && requested_bpc >= 6);
+
+	if (dc_result == DC_FAIL_ENC_VALIDATE && !aconnector->force_yuv420_output) {
+		DRM_DEBUG_KMS("Retry forcing YCbCr420 encoding\n");
+
+		aconnector->force_yuv420_output = true;
+		stream = create_validate_stream_for_sink(aconnector, drm_mode,
+						dm_state, old_stream);
+		aconnector->force_yuv420_output = false;
+	}
+
+	return stream;
+}
+
+enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
+				   struct drm_display_mode *mode)
+{
+	int result = MODE_ERROR;
+	struct dc_sink *dc_sink;
+	/* TODO: Unhardcode stream count */
+	struct dc_stream_state *stream;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+	if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
+			(mode->flags & DRM_MODE_FLAG_DBLSCAN))
+		return result;
+
+	/*
+	 * Only run this the first time mode_valid is called to initilialize
+	 * EDID mgmt
+	 */
+	if (aconnector->base.force != DRM_FORCE_UNSPECIFIED &&
+		!aconnector->dc_em_sink)
+		handle_edid_mgmt(aconnector);
+
+	dc_sink = to_amdgpu_dm_connector(connector)->dc_sink;
+
+	if (dc_sink == NULL && aconnector->base.force != DRM_FORCE_ON_DIGITAL &&
+				aconnector->base.force != DRM_FORCE_ON) {
+		DRM_ERROR("dc_sink is NULL!\n");
+		goto fail;
+	}
+
+	drm_mode_set_crtcinfo(mode, 0);
+
+	stream = create_validate_stream_for_sink(aconnector, mode,
+						 to_dm_connector_state(connector->state),
+						 NULL);
+	if (stream) {
+		dc_stream_release(stream);
+		result = MODE_OK;
+	}
+
+fail:
+	/* TODO: error handling*/
+	return result;
+}
+
+static int fill_hdr_info_packet(const struct drm_connector_state *state,
+				struct dc_info_packet *out)
+{
+	struct hdmi_drm_infoframe frame;
+	unsigned char buf[30]; /* 26 + 4 */
+	ssize_t len;
+	int ret, i;
+
+	memset(out, 0, sizeof(*out));
+
+	if (!state->hdr_output_metadata)
+		return 0;
+
+	ret = drm_hdmi_infoframe_set_hdr_metadata(&frame, state);
+	if (ret)
+		return ret;
+
+	len = hdmi_drm_infoframe_pack_only(&frame, buf, sizeof(buf));
+	if (len < 0)
+		return (int)len;
+
+	/* Static metadata is a fixed 26 bytes + 4 byte header. */
+	if (len != 30)
+		return -EINVAL;
+
+	/* Prepare the infopacket for DC. */
+	switch (state->connector->connector_type) {
+	case DRM_MODE_CONNECTOR_HDMIA:
+		out->hb0 = 0x87; /* type */
+		out->hb1 = 0x01; /* version */
+		out->hb2 = 0x1A; /* length */
+		out->sb[0] = buf[3]; /* checksum */
+		i = 1;
+		break;
+
+	case DRM_MODE_CONNECTOR_DisplayPort:
+	case DRM_MODE_CONNECTOR_eDP:
+		out->hb0 = 0x00; /* sdp id, zero */
+		out->hb1 = 0x87; /* type */
+		out->hb2 = 0x1D; /* payload len - 1 */
+		out->hb3 = (0x13 << 2); /* sdp version */
+		out->sb[0] = 0x01; /* version */
+		out->sb[1] = 0x1A; /* length */
+		i = 2;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	memcpy(&out->sb[i], &buf[4], 26);
+	out->valid = true;
+
+	print_hex_dump(KERN_DEBUG, "HDR SB:", DUMP_PREFIX_NONE, 16, 1, out->sb,
+		       sizeof(out->sb), false);
+
+	return 0;
+}
+
+static int
+amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
+				 struct drm_atomic_state *state)
+{
+	struct drm_connector_state *new_con_state =
+		drm_atomic_get_new_connector_state(state, conn);
+	struct drm_connector_state *old_con_state =
+		drm_atomic_get_old_connector_state(state, conn);
+	struct drm_crtc *crtc = new_con_state->crtc;
+	struct drm_crtc_state *new_crtc_state;
+	struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(conn);
+	int ret;
+
+	trace_amdgpu_dm_connector_atomic_check(new_con_state);
+
+	if (conn->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+		ret = drm_dp_mst_root_conn_atomic_check(new_con_state, &aconn->mst_mgr);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!crtc)
+		return 0;
+
+	if (new_con_state->colorspace != old_con_state->colorspace) {
+		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(new_crtc_state))
+			return PTR_ERR(new_crtc_state);
+
+		new_crtc_state->mode_changed = true;
+	}
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
+		struct dc_info_packet hdr_infopacket;
+
+		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
+		if (ret)
+			return ret;
+
+		new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(new_crtc_state))
+			return PTR_ERR(new_crtc_state);
+
+		/*
+		 * DC considers the stream backends changed if the
+		 * static metadata changes. Forcing the modeset also
+		 * gives a simple way for userspace to switch from
+		 * 8bpc to 10bpc when setting the metadata to enter
+		 * or exit HDR.
+		 *
+		 * Changing the static metadata after it's been
+		 * set is permissible, however. So only force a
+		 * modeset if we're entering or exiting HDR.
+		 */
+		new_crtc_state->mode_changed = new_crtc_state->mode_changed ||
+			!old_con_state->hdr_output_metadata ||
+			!new_con_state->hdr_output_metadata;
+	}
+
+	return 0;
+}
+
+static const struct drm_connector_helper_funcs
+amdgpu_dm_connector_helper_funcs = {
+	/*
+	 * If hotplugging a second bigger display in FB Con mode, bigger resolution
+	 * modes will be filtered by drm_mode_validate_size(), and those modes
+	 * are missing after user start lightdm. So we need to renew modes list.
+	 * in get_modes call back, not just return the modes count
+	 */
+	.get_modes = get_modes,
+	.mode_valid = amdgpu_dm_connector_mode_valid,
+	.atomic_check = amdgpu_dm_connector_atomic_check,
+};
+
+static void dm_encoder_helper_disable(struct drm_encoder *encoder)
+{
+
+}
+
+int convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_depth)
+{
+	switch (display_color_depth) {
+	case COLOR_DEPTH_666:
+		return 6;
+	case COLOR_DEPTH_888:
+		return 8;
+	case COLOR_DEPTH_101010:
+		return 10;
+	case COLOR_DEPTH_121212:
+		return 12;
+	case COLOR_DEPTH_141414:
+		return 14;
+	case COLOR_DEPTH_161616:
+		return 16;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
+					  struct drm_crtc_state *crtc_state,
+					  struct drm_connector_state *conn_state)
+{
+	struct drm_atomic_state *state = crtc_state->state;
+	struct drm_connector *connector = conn_state->connector;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dm_connector_state *dm_new_connector_state = to_dm_connector_state(conn_state);
+	const struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+	struct drm_dp_mst_port *mst_port;
+	struct drm_dp_mst_topology_state *mst_state;
+	enum dc_color_depth color_depth;
+	int clock, bpp = 0;
+	bool is_y420 = false;
+
+	if (!aconnector->mst_output_port)
+		return 0;
+
+	mst_port = aconnector->mst_output_port;
+	mst_mgr = &aconnector->mst_root->mst_mgr;
+
+	if (!crtc_state->connectors_changed && !crtc_state->mode_changed)
+		return 0;
+
+	mst_state = drm_atomic_get_mst_topology_state(state, mst_mgr);
+	if (IS_ERR(mst_state))
+		return PTR_ERR(mst_state);
+
+	mst_state->pbn_div = dm_mst_get_pbn_divider(aconnector->mst_root->dc_link);
+
+	if (!state->duplicated) {
+		int max_bpc = conn_state->max_requested_bpc;
+
+		is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) &&
+			  aconnector->force_yuv420_output;
+		color_depth = convert_color_depth_from_display_info(connector,
+								    is_y420,
+								    max_bpc);
+		bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
+		clock = adjusted_mode->clock;
+		dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp << 4);
+	}
+
+	dm_new_connector_state->vcpi_slots =
+		drm_dp_atomic_find_time_slots(state, mst_mgr, mst_port,
+					      dm_new_connector_state->pbn);
+	if (dm_new_connector_state->vcpi_slots < 0) {
+		DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots);
+		return dm_new_connector_state->vcpi_slots;
+	}
+	return 0;
+}
+
+const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
+	.disable = dm_encoder_helper_disable,
+	.atomic_check = dm_encoder_helper_atomic_check
+};
+
+static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
+					    struct dc_state *dc_state,
+					    struct dsc_mst_fairness_vars *vars)
+{
+	struct dc_stream_state *stream = NULL;
+	struct drm_connector *connector;
+	struct drm_connector_state *new_con_state;
+	struct amdgpu_dm_connector *aconnector;
+	struct dm_connector_state *dm_conn_state;
+	int i, j, ret;
+	int vcpi, pbn_div, pbn, slot_num = 0;
+
+	for_each_new_connector_in_state(state, connector, new_con_state, i) {
+
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		if (!aconnector->mst_output_port)
+			continue;
+
+		if (!new_con_state || !new_con_state->crtc)
+			continue;
+
+		dm_conn_state = to_dm_connector_state(new_con_state);
+
+		for (j = 0; j < dc_state->stream_count; j++) {
+			stream = dc_state->streams[j];
+			if (!stream)
+				continue;
+
+			if ((struct amdgpu_dm_connector *)stream->dm_stream_context == aconnector)
+				break;
+
+			stream = NULL;
+		}
+
+		if (!stream)
+			continue;
+
+		pbn_div = dm_mst_get_pbn_divider(stream->link);
+		/* pbn is calculated by compute_mst_dsc_configs_for_state*/
+		for (j = 0; j < dc_state->stream_count; j++) {
+			if (vars[j].aconnector == aconnector) {
+				pbn = vars[j].pbn;
+				break;
+			}
+		}
+
+		if (j == dc_state->stream_count)
+			continue;
+
+		slot_num = DIV_ROUND_UP(pbn, pbn_div);
+
+		if (stream->timing.flags.DSC != 1) {
+			dm_conn_state->pbn = pbn;
+			dm_conn_state->vcpi_slots = slot_num;
+
+			ret = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port,
+							   dm_conn_state->pbn, false);
+			if (ret < 0)
+				return ret;
+
+			continue;
+		}
+
+		vcpi = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port, pbn, true);
+		if (vcpi < 0)
+			return vcpi;
+
+		dm_conn_state->pbn = pbn;
+		dm_conn_state->vcpi_slots = vcpi;
+	}
+	return 0;
+}
+
+static int to_drm_connector_type(enum signal_type st)
+{
+	switch (st) {
+	case SIGNAL_TYPE_HDMI_TYPE_A:
+		return DRM_MODE_CONNECTOR_HDMIA;
+	case SIGNAL_TYPE_EDP:
+		return DRM_MODE_CONNECTOR_eDP;
+	case SIGNAL_TYPE_LVDS:
+		return DRM_MODE_CONNECTOR_LVDS;
+	case SIGNAL_TYPE_RGB:
+		return DRM_MODE_CONNECTOR_VGA;
+	case SIGNAL_TYPE_DISPLAY_PORT:
+	case SIGNAL_TYPE_DISPLAY_PORT_MST:
+		return DRM_MODE_CONNECTOR_DisplayPort;
+	case SIGNAL_TYPE_DVI_DUAL_LINK:
+	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+		return DRM_MODE_CONNECTOR_DVID;
+	case SIGNAL_TYPE_VIRTUAL:
+		return DRM_MODE_CONNECTOR_VIRTUAL;
+
+	default:
+		return DRM_MODE_CONNECTOR_Unknown;
+	}
+}
+
+static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector)
+{
+	struct drm_encoder *encoder;
+
+	/* There is only one encoder per connector */
+	drm_connector_for_each_possible_encoder(connector, encoder)
+		return encoder;
+
+	return NULL;
+}
+
+static void amdgpu_dm_get_native_mode(struct drm_connector *connector)
+{
+	struct drm_encoder *encoder;
+	struct amdgpu_encoder *amdgpu_encoder;
+
+	encoder = amdgpu_dm_connector_to_encoder(connector);
+
+	if (encoder == NULL)
+		return;
+
+	amdgpu_encoder = to_amdgpu_encoder(encoder);
+
+	amdgpu_encoder->native_mode.clock = 0;
+
+	if (!list_empty(&connector->probed_modes)) {
+		struct drm_display_mode *preferred_mode = NULL;
+
+		list_for_each_entry(preferred_mode,
+				    &connector->probed_modes,
+				    head) {
+			if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED)
+				amdgpu_encoder->native_mode = *preferred_mode;
+
+			break;
+		}
+
+	}
+}
+
+static struct drm_display_mode *
+amdgpu_dm_create_common_mode(struct drm_encoder *encoder,
+			     char *name,
+			     int hdisplay, int vdisplay)
+{
+	struct drm_device *dev = encoder->dev;
+	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
+	struct drm_display_mode *mode = NULL;
+	struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
+
+	mode = drm_mode_duplicate(dev, native_mode);
+
+	if (mode == NULL)
+		return NULL;
+
+	mode->hdisplay = hdisplay;
+	mode->vdisplay = vdisplay;
+	mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+	strscpy(mode->name, name, DRM_DISPLAY_MODE_LEN);
+
+	return mode;
+
+}
+
+static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
+						 struct drm_connector *connector)
+{
+	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
+	struct drm_display_mode *mode = NULL;
+	struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+				to_amdgpu_dm_connector(connector);
+	int i;
+	int n;
+	struct mode_size {
+		char name[DRM_DISPLAY_MODE_LEN];
+		int w;
+		int h;
+	} common_modes[] = {
+		{  "640x480",  640,  480},
+		{  "800x600",  800,  600},
+		{ "1024x768", 1024,  768},
+		{ "1280x720", 1280,  720},
+		{ "1280x800", 1280,  800},
+		{"1280x1024", 1280, 1024},
+		{ "1440x900", 1440,  900},
+		{"1680x1050", 1680, 1050},
+		{"1600x1200", 1600, 1200},
+		{"1920x1080", 1920, 1080},
+		{"1920x1200", 1920, 1200}
+	};
+
+	n = ARRAY_SIZE(common_modes);
+
+	for (i = 0; i < n; i++) {
+		struct drm_display_mode *curmode = NULL;
+		bool mode_existed = false;
+
+		if (common_modes[i].w > native_mode->hdisplay ||
+		    common_modes[i].h > native_mode->vdisplay ||
+		   (common_modes[i].w == native_mode->hdisplay &&
+		    common_modes[i].h == native_mode->vdisplay))
+			continue;
+
+		list_for_each_entry(curmode, &connector->probed_modes, head) {
+			if (common_modes[i].w == curmode->hdisplay &&
+			    common_modes[i].h == curmode->vdisplay) {
+				mode_existed = true;
+				break;
+			}
+		}
+
+		if (mode_existed)
+			continue;
+
+		mode = amdgpu_dm_create_common_mode(encoder,
+				common_modes[i].name, common_modes[i].w,
+				common_modes[i].h);
+		if (!mode)
+			continue;
+
+		drm_mode_probed_add(connector, mode);
+		amdgpu_dm_connector->num_modes++;
+	}
+}
+
+static void amdgpu_set_panel_orientation(struct drm_connector *connector)
+{
+	struct drm_encoder *encoder;
+	struct amdgpu_encoder *amdgpu_encoder;
+	const struct drm_display_mode *native_mode;
+
+	if (connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
+	    connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
+		return;
+
+	mutex_lock(&connector->dev->mode_config.mutex);
+	amdgpu_dm_connector_get_modes(connector);
+	mutex_unlock(&connector->dev->mode_config.mutex);
+
+	encoder = amdgpu_dm_connector_to_encoder(connector);
+	if (!encoder)
+		return;
+
+	amdgpu_encoder = to_amdgpu_encoder(encoder);
+
+	native_mode = &amdgpu_encoder->native_mode;
+	if (native_mode->hdisplay == 0 || native_mode->vdisplay == 0)
+		return;
+
+	drm_connector_set_panel_orientation_with_quirk(connector,
+						       DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
+						       native_mode->hdisplay,
+						       native_mode->vdisplay);
+}
+
+static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
+					      struct edid *edid)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+			to_amdgpu_dm_connector(connector);
+
+	if (edid) {
+		/* empty probed_modes */
+		INIT_LIST_HEAD(&connector->probed_modes);
+		amdgpu_dm_connector->num_modes =
+				drm_add_edid_modes(connector, edid);
+
+		/* sorting the probed modes before calling function
+		 * amdgpu_dm_get_native_mode() since EDID can have
+		 * more than one preferred mode. The modes that are
+		 * later in the probed mode list could be of higher
+		 * and preferred resolution. For example, 3840x2160
+		 * resolution in base EDID preferred timing and 4096x2160
+		 * preferred resolution in DID extension block later.
+		 */
+		drm_mode_sort(&connector->probed_modes);
+		amdgpu_dm_get_native_mode(connector);
+
+		/* Freesync capabilities are reset by calling
+		 * drm_add_edid_modes() and need to be
+		 * restored here.
+		 */
+		amdgpu_dm_update_freesync_caps(connector, edid);
+	} else {
+		amdgpu_dm_connector->num_modes = 0;
+	}
+}
+
+static bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector,
+			      struct drm_display_mode *mode)
+{
+	struct drm_display_mode *m;
+
+	list_for_each_entry(m, &aconnector->base.probed_modes, head) {
+		if (drm_mode_equal(m, mode))
+			return true;
+	}
+
+	return false;
+}
+
+static uint add_fs_modes(struct amdgpu_dm_connector *aconnector)
+{
+	const struct drm_display_mode *m;
+	struct drm_display_mode *new_mode;
+	uint i;
+	u32 new_modes_count = 0;
+
+	/* Standard FPS values
+	 *
+	 * 23.976       - TV/NTSC
+	 * 24           - Cinema
+	 * 25           - TV/PAL
+	 * 29.97        - TV/NTSC
+	 * 30           - TV/NTSC
+	 * 48           - Cinema HFR
+	 * 50           - TV/PAL
+	 * 60           - Commonly used
+	 * 48,72,96,120 - Multiples of 24
+	 */
+	static const u32 common_rates[] = {
+		23976, 24000, 25000, 29970, 30000,
+		48000, 50000, 60000, 72000, 96000, 120000
+	};
+
+	/*
+	 * Find mode with highest refresh rate with the same resolution
+	 * as the preferred mode. Some monitors report a preferred mode
+	 * with lower resolution than the highest refresh rate supported.
+	 */
+
+	m = get_highest_refresh_rate_mode(aconnector, true);
+	if (!m)
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(common_rates); i++) {
+		u64 target_vtotal, target_vtotal_diff;
+		u64 num, den;
+
+		if (drm_mode_vrefresh(m) * 1000 < common_rates[i])
+			continue;
+
+		if (common_rates[i] < aconnector->min_vfreq * 1000 ||
+		    common_rates[i] > aconnector->max_vfreq * 1000)
+			continue;
+
+		num = (unsigned long long)m->clock * 1000 * 1000;
+		den = common_rates[i] * (unsigned long long)m->htotal;
+		target_vtotal = div_u64(num, den);
+		target_vtotal_diff = target_vtotal - m->vtotal;
+
+		/* Check for illegal modes */
+		if (m->vsync_start + target_vtotal_diff < m->vdisplay ||
+		    m->vsync_end + target_vtotal_diff < m->vsync_start ||
+		    m->vtotal + target_vtotal_diff < m->vsync_end)
+			continue;
+
+		new_mode = drm_mode_duplicate(aconnector->base.dev, m);
+		if (!new_mode)
+			goto out;
+
+		new_mode->vtotal += (u16)target_vtotal_diff;
+		new_mode->vsync_start += (u16)target_vtotal_diff;
+		new_mode->vsync_end += (u16)target_vtotal_diff;
+		new_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+		new_mode->type |= DRM_MODE_TYPE_DRIVER;
+
+		if (!is_duplicate_mode(aconnector, new_mode)) {
+			drm_mode_probed_add(&aconnector->base, new_mode);
+			new_modes_count += 1;
+		} else
+			drm_mode_destroy(aconnector->base.dev, new_mode);
+	}
+ out:
+	return new_modes_count;
+}
+
+static void amdgpu_dm_connector_add_freesync_modes(struct drm_connector *connector,
+						   struct edid *edid)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+		to_amdgpu_dm_connector(connector);
+
+	if (!edid)
+		return;
+
+	if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
+		amdgpu_dm_connector->num_modes +=
+			add_fs_modes(amdgpu_dm_connector);
+}
+
+static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+			to_amdgpu_dm_connector(connector);
+	struct drm_encoder *encoder;
+	struct edid *edid = amdgpu_dm_connector->edid;
+	struct dc_link_settings *verified_link_cap =
+			&amdgpu_dm_connector->dc_link->verified_link_cap;
+	const struct dc *dc = amdgpu_dm_connector->dc_link->dc;
+
+	encoder = amdgpu_dm_connector_to_encoder(connector);
+
+	if (!drm_edid_is_valid(edid)) {
+		amdgpu_dm_connector->num_modes =
+				drm_add_modes_noedid(connector, 640, 480);
+		if (dc->link_srv->dp_get_encoding_format(verified_link_cap) == DP_128b_132b_ENCODING)
+			amdgpu_dm_connector->num_modes +=
+				drm_add_modes_noedid(connector, 1920, 1080);
+	} else {
+		amdgpu_dm_connector_ddc_get_modes(connector, edid);
+		amdgpu_dm_connector_add_common_modes(encoder, connector);
+		amdgpu_dm_connector_add_freesync_modes(connector, edid);
+	}
+	amdgpu_dm_fbc_init(connector);
+
+	return amdgpu_dm_connector->num_modes;
+}
+
+static const u32 supported_colorspaces =
+	BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |
+	BIT(DRM_MODE_COLORIMETRY_OPRGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
+	BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
+
+void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
+				     struct amdgpu_dm_connector *aconnector,
+				     int connector_type,
+				     struct dc_link *link,
+				     int link_index)
+{
+	struct amdgpu_device *adev = drm_to_adev(dm->ddev);
+
+	/*
+	 * Some of the properties below require access to state, like bpc.
+	 * Allocate some default initial connector state with our reset helper.
+	 */
+	if (aconnector->base.funcs->reset)
+		aconnector->base.funcs->reset(&aconnector->base);
+
+	aconnector->connector_id = link_index;
+	aconnector->bl_idx = -1;
+	aconnector->dc_link = link;
+	aconnector->base.interlace_allowed = false;
+	aconnector->base.doublescan_allowed = false;
+	aconnector->base.stereo_allowed = false;
+	aconnector->base.dpms = DRM_MODE_DPMS_OFF;
+	aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */
+	aconnector->audio_inst = -1;
+	aconnector->pack_sdp_v1_3 = false;
+	aconnector->as_type = ADAPTIVE_SYNC_TYPE_NONE;
+	memset(&aconnector->vsdb_info, 0, sizeof(aconnector->vsdb_info));
+	mutex_init(&aconnector->hpd_lock);
+	mutex_init(&aconnector->handle_mst_msg_ready);
+
+	/*
+	 * configure support HPD hot plug connector_>polled default value is 0
+	 * which means HPD hot plug not supported
+	 */
+	switch (connector_type) {
+	case DRM_MODE_CONNECTOR_HDMIA:
+		aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+		aconnector->base.ycbcr_420_allowed =
+			link->link_enc->features.hdmi_ycbcr420_supported ? true : false;
+		break;
+	case DRM_MODE_CONNECTOR_DisplayPort:
+		aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+		link->link_enc = link_enc_cfg_get_link_enc(link);
+		ASSERT(link->link_enc);
+		if (link->link_enc)
+			aconnector->base.ycbcr_420_allowed =
+			link->link_enc->features.dp_ycbcr420_supported ? true : false;
+		break;
+	case DRM_MODE_CONNECTOR_DVID:
+		aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+		break;
+	default:
+		break;
+	}
+
+	drm_object_attach_property(&aconnector->base.base,
+				dm->ddev->mode_config.scaling_mode_property,
+				DRM_MODE_SCALE_NONE);
+
+	drm_object_attach_property(&aconnector->base.base,
+				adev->mode_info.underscan_property,
+				UNDERSCAN_OFF);
+	drm_object_attach_property(&aconnector->base.base,
+				adev->mode_info.underscan_hborder_property,
+				0);
+	drm_object_attach_property(&aconnector->base.base,
+				adev->mode_info.underscan_vborder_property,
+				0);
+
+	if (!aconnector->mst_root)
+		drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
+
+	aconnector->base.state->max_bpc = 16;
+	aconnector->base.state->max_requested_bpc = aconnector->base.state->max_bpc;
+
+	if (connector_type == DRM_MODE_CONNECTOR_eDP &&
+	    (dc_is_dmcu_initialized(adev->dm.dc) || adev->dm.dc->ctx->dmub_srv)) {
+		drm_object_attach_property(&aconnector->base.base,
+				adev->mode_info.abm_level_property, 0);
+	}
+
+	if (connector_type == DRM_MODE_CONNECTOR_HDMIA) {
+		if (!drm_mode_create_hdmi_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	} else if ((connector_type == DRM_MODE_CONNECTOR_DisplayPort && !aconnector->mst_root) ||
+		   connector_type == DRM_MODE_CONNECTOR_eDP) {
+		if (!drm_mode_create_dp_colorspace_property(&aconnector->base, supported_colorspaces))
+			drm_connector_attach_colorspace_property(&aconnector->base);
+	}
+
+	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	    connector_type == DRM_MODE_CONNECTOR_eDP) {
+		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
+
+		if (!aconnector->mst_root)
+			drm_connector_attach_vrr_capable_property(&aconnector->base);
+
+		if (adev->dm.hdcp_workqueue)
+			drm_connector_attach_content_protection_property(&aconnector->base, true);
+	}
+}
+
+static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
+			      struct i2c_msg *msgs, int num)
+{
+	struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap);
+	struct ddc_service *ddc_service = i2c->ddc_service;
+	struct i2c_command cmd;
+	int i;
+	int result = -EIO;
+
+	if (!ddc_service->ddc_pin || !ddc_service->ddc_pin->hw_info.hw_supported)
+		return result;
+
+	cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL);
+
+	if (!cmd.payloads)
+		return result;
+
+	cmd.number_of_payloads = num;
+	cmd.engine = I2C_COMMAND_ENGINE_DEFAULT;
+	cmd.speed = 100;
+
+	for (i = 0; i < num; i++) {
+		cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
+		cmd.payloads[i].address = msgs[i].addr;
+		cmd.payloads[i].length = msgs[i].len;
+		cmd.payloads[i].data = msgs[i].buf;
+	}
+
+	if (dc_submit_i2c(
+			ddc_service->ctx->dc,
+			ddc_service->link->link_index,
+			&cmd))
+		result = num;
+
+	kfree(cmd.payloads);
+	return result;
+}
+
+static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm amdgpu_dm_i2c_algo = {
+	.master_xfer = amdgpu_dm_i2c_xfer,
+	.functionality = amdgpu_dm_i2c_func,
+};
+
+static struct amdgpu_i2c_adapter *
+create_i2c(struct ddc_service *ddc_service,
+	   int link_index,
+	   int *res)
+{
+	struct amdgpu_device *adev = ddc_service->ctx->driver_context;
+	struct amdgpu_i2c_adapter *i2c;
+
+	i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL);
+	if (!i2c)
+		return NULL;
+	i2c->base.owner = THIS_MODULE;
+	i2c->base.class = I2C_CLASS_DDC;
+	i2c->base.dev.parent = &adev->pdev->dev;
+	i2c->base.algo = &amdgpu_dm_i2c_algo;
+	snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
+	i2c_set_adapdata(&i2c->base, i2c);
+	i2c->ddc_service = ddc_service;
+
+	return i2c;
+}
+
+
+/*
+ * Note: this function assumes that dc_link_detect() was called for the
+ * dc_link which will be represented by this aconnector.
+ */
+static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
+				    struct amdgpu_dm_connector *aconnector,
+				    u32 link_index,
+				    struct amdgpu_encoder *aencoder)
+{
+	int res = 0;
+	int connector_type;
+	struct dc *dc = dm->dc;
+	struct dc_link *link = dc_get_link_at_index(dc, link_index);
+	struct amdgpu_i2c_adapter *i2c;
+
+	link->priv = aconnector;
+
+
+	i2c = create_i2c(link->ddc, link->link_index, &res);
+	if (!i2c) {
+		DRM_ERROR("Failed to create i2c adapter data\n");
+		return -ENOMEM;
+	}
+
+	aconnector->i2c = i2c;
+	res = i2c_add_adapter(&i2c->base);
+
+	if (res) {
+		DRM_ERROR("Failed to register hw i2c %d\n", link->link_index);
+		goto out_free;
+	}
+
+	connector_type = to_drm_connector_type(link->connector_signal);
+
+	res = drm_connector_init_with_ddc(
+			dm->ddev,
+			&aconnector->base,
+			&amdgpu_dm_connector_funcs,
+			connector_type,
+			&i2c->base);
+
+	if (res) {
+		DRM_ERROR("connector_init failed\n");
+		aconnector->connector_id = -1;
+		goto out_free;
+	}
+
+	drm_connector_helper_add(
+			&aconnector->base,
+			&amdgpu_dm_connector_helper_funcs);
+
+	amdgpu_dm_connector_init_helper(
+		dm,
+		aconnector,
+		connector_type,
+		link,
+		link_index);
+
+	drm_connector_attach_encoder(
+		&aconnector->base, &aencoder->base);
+
+	if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
+		|| connector_type == DRM_MODE_CONNECTOR_eDP)
+		amdgpu_dm_initialize_dp_connector(dm, aconnector, link->link_index);
+
+out_free:
+	if (res) {
+		kfree(i2c);
+		aconnector->i2c = NULL;
+	}
+	return res;
+}
+
+int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev)
+{
+	switch (adev->mode_info.num_crtc) {
+	case 1:
+		return 0x1;
+	case 2:
+		return 0x3;
+	case 3:
+		return 0x7;
+	case 4:
+		return 0xf;
+	case 5:
+		return 0x1f;
+	case 6:
+	default:
+		return 0x3f;
+	}
+}
+
+static int amdgpu_dm_encoder_init(struct drm_device *dev,
+				  struct amdgpu_encoder *aencoder,
+				  uint32_t link_index)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	int res = drm_encoder_init(dev,
+				   &aencoder->base,
+				   &amdgpu_dm_encoder_funcs,
+				   DRM_MODE_ENCODER_TMDS,
+				   NULL);
+
+	aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
+
+	if (!res)
+		aencoder->encoder_id = link_index;
+	else
+		aencoder->encoder_id = -1;
+
+	drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs);
+
+	return res;
+}
+
+static void manage_dm_interrupts(struct amdgpu_device *adev,
+				 struct amdgpu_crtc *acrtc,
+				 bool enable)
+{
+	/*
+	 * We have no guarantee that the frontend index maps to the same
+	 * backend index - some even map to more than one.
+	 *
+	 * TODO: Use a different interrupt or check DC itself for the mapping.
+	 */
+	int irq_type =
+		amdgpu_display_crtc_idx_to_irq_type(
+			adev,
+			acrtc->crtc_id);
+
+	if (enable) {
+		drm_crtc_vblank_on(&acrtc->base);
+		amdgpu_irq_get(
+			adev,
+			&adev->pageflip_irq,
+			irq_type);
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+		amdgpu_irq_get(
+			adev,
+			&adev->vline0_irq,
+			irq_type);
+#endif
+	} else {
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+		amdgpu_irq_put(
+			adev,
+			&adev->vline0_irq,
+			irq_type);
+#endif
+		amdgpu_irq_put(
+			adev,
+			&adev->pageflip_irq,
+			irq_type);
+		drm_crtc_vblank_off(&acrtc->base);
+	}
+}
+
+static void dm_update_pflip_irq_state(struct amdgpu_device *adev,
+				      struct amdgpu_crtc *acrtc)
+{
+	int irq_type =
+		amdgpu_display_crtc_idx_to_irq_type(adev, acrtc->crtc_id);
+
+	/**
+	 * This reads the current state for the IRQ and force reapplies
+	 * the setting to hardware.
+	 */
+	amdgpu_irq_update(adev, &adev->pageflip_irq, irq_type);
+}
+
+static bool
+is_scaling_state_different(const struct dm_connector_state *dm_state,
+			   const struct dm_connector_state *old_dm_state)
+{
+	if (dm_state->scaling != old_dm_state->scaling)
+		return true;
+	if (!dm_state->underscan_enable && old_dm_state->underscan_enable) {
+		if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0)
+			return true;
+	} else  if (dm_state->underscan_enable && !old_dm_state->underscan_enable) {
+		if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0)
+			return true;
+	} else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder ||
+		   dm_state->underscan_vborder != old_dm_state->underscan_vborder)
+		return true;
+	return false;
+}
+
+static bool is_content_protection_different(struct drm_crtc_state *new_crtc_state,
+					    struct drm_crtc_state *old_crtc_state,
+					    struct drm_connector_state *new_conn_state,
+					    struct drm_connector_state *old_conn_state,
+					    const struct drm_connector *connector,
+					    struct hdcp_workqueue *hdcp_w)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
+
+	pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
+		connector->index, connector->status, connector->dpms);
+	pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
+		old_conn_state->content_protection, new_conn_state->content_protection);
+
+	if (old_crtc_state)
+		pr_debug("[HDCP_DM] old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+		old_crtc_state->enable,
+		old_crtc_state->active,
+		old_crtc_state->mode_changed,
+		old_crtc_state->active_changed,
+		old_crtc_state->connectors_changed);
+
+	if (new_crtc_state)
+		pr_debug("[HDCP_DM] NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+		new_crtc_state->enable,
+		new_crtc_state->active,
+		new_crtc_state->mode_changed,
+		new_crtc_state->active_changed,
+		new_crtc_state->connectors_changed);
+
+	/* hdcp content type change */
+	if (old_conn_state->hdcp_content_type != new_conn_state->hdcp_content_type &&
+	    new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
+		new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+		pr_debug("[HDCP_DM] Type0/1 change %s :true\n", __func__);
+		return true;
+	}
+
+	/* CP is being re enabled, ignore this */
+	if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED &&
+	    new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+		if (new_crtc_state && new_crtc_state->mode_changed) {
+			new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+			pr_debug("[HDCP_DM] ENABLED->DESIRED & mode_changed %s :true\n", __func__);
+			return true;
+		}
+		new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED;
+		pr_debug("[HDCP_DM] ENABLED -> DESIRED %s :false\n", __func__);
+		return false;
+	}
+
+	/* S3 resume case, since old state will always be 0 (UNDESIRED) and the restored state will be ENABLED
+	 *
+	 * Handles:	UNDESIRED -> ENABLED
+	 */
+	if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED &&
+	    new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
+		new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+
+	/* Stream removed and re-enabled
+	 *
+	 * Can sometimes overlap with the HPD case,
+	 * thus set update_hdcp to false to avoid
+	 * setting HDCP multiple times.
+	 *
+	 * Handles:	DESIRED -> DESIRED (Special case)
+	 */
+	if (!(old_conn_state->crtc && old_conn_state->crtc->enabled) &&
+		new_conn_state->crtc && new_conn_state->crtc->enabled &&
+		connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+		dm_con_state->update_hdcp = false;
+		pr_debug("[HDCP_DM] DESIRED->DESIRED (Stream removed and re-enabled) %s :true\n",
+			__func__);
+		return true;
+	}
+
+	/* Hot-plug, headless s3, dpms
+	 *
+	 * Only start HDCP if the display is connected/enabled.
+	 * update_hdcp flag will be set to false until the next
+	 * HPD comes in.
+	 *
+	 * Handles:	DESIRED -> DESIRED (Special case)
+	 */
+	if (dm_con_state->update_hdcp &&
+	new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED &&
+	connector->dpms == DRM_MODE_DPMS_ON && aconnector->dc_sink != NULL) {
+		dm_con_state->update_hdcp = false;
+		pr_debug("[HDCP_DM] DESIRED->DESIRED (Hot-plug, headless s3, dpms) %s :true\n",
+			__func__);
+		return true;
+	}
+
+	if (old_conn_state->content_protection == new_conn_state->content_protection) {
+		if (new_conn_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+			if (new_crtc_state && new_crtc_state->mode_changed) {
+				pr_debug("[HDCP_DM] DESIRED->DESIRED or ENABLE->ENABLE mode_change %s :true\n",
+					__func__);
+				return true;
+			}
+			pr_debug("[HDCP_DM] DESIRED->DESIRED & ENABLE->ENABLE %s :false\n",
+				__func__);
+			return false;
+		}
+
+		pr_debug("[HDCP_DM] UNDESIRED->UNDESIRED %s :false\n", __func__);
+		return false;
+	}
+
+	if (new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_ENABLED) {
+		pr_debug("[HDCP_DM] UNDESIRED->DESIRED or DESIRED->UNDESIRED or ENABLED->UNDESIRED %s :true\n",
+			__func__);
+		return true;
+	}
+
+	pr_debug("[HDCP_DM] DESIRED->ENABLED %s :false\n", __func__);
+	return false;
+}
+
+static void remove_stream(struct amdgpu_device *adev,
+			  struct amdgpu_crtc *acrtc,
+			  struct dc_stream_state *stream)
+{
+	/* this is the update mode case */
+
+	acrtc->otg_inst = -1;
+	acrtc->enabled = false;
+}
+
+static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
+{
+
+	assert_spin_locked(&acrtc->base.dev->event_lock);
+	WARN_ON(acrtc->event);
+
+	acrtc->event = acrtc->base.state->event;
+
+	/* Set the flip status */
+	acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
+
+	/* Mark this event as consumed */
+	acrtc->base.state->event = NULL;
+
+	DC_LOG_PFLIP("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
+		     acrtc->crtc_id);
+}
+
+static void update_freesync_state_on_stream(
+	struct amdgpu_display_manager *dm,
+	struct dm_crtc_state *new_crtc_state,
+	struct dc_stream_state *new_stream,
+	struct dc_plane_state *surface,
+	u32 flip_timestamp_in_us)
+{
+	struct mod_vrr_params vrr_params;
+	struct dc_info_packet vrr_infopacket = {0};
+	struct amdgpu_device *adev = dm->adev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_crtc_state->base.crtc);
+	unsigned long flags;
+	bool pack_sdp_v1_3 = false;
+	struct amdgpu_dm_connector *aconn;
+	enum vrr_packet_type packet_type = PACKET_TYPE_VRR;
+
+	if (!new_stream)
+		return;
+
+	/*
+	 * TODO: Determine why min/max totals and vrefresh can be 0 here.
+	 * For now it's sufficient to just guard against these conditions.
+	 */
+
+	if (!new_stream->timing.h_total || !new_stream->timing.v_total)
+		return;
+
+	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+	vrr_params = acrtc->dm_irq_params.vrr_params;
+
+	if (surface) {
+		mod_freesync_handle_preflip(
+			dm->freesync_module,
+			surface,
+			new_stream,
+			flip_timestamp_in_us,
+			&vrr_params);
+
+		if (adev->family < AMDGPU_FAMILY_AI &&
+		    amdgpu_dm_crtc_vrr_active(new_crtc_state)) {
+			mod_freesync_handle_v_update(dm->freesync_module,
+						     new_stream, &vrr_params);
+
+			/* Need to call this before the frame ends. */
+			dc_stream_adjust_vmin_vmax(dm->dc,
+						   new_crtc_state->stream,
+						   &vrr_params.adjust);
+		}
+	}
+
+	aconn = (struct amdgpu_dm_connector *)new_stream->dm_stream_context;
+
+	if (aconn && (aconn->as_type == FREESYNC_TYPE_PCON_IN_WHITELIST || aconn->vsdb_info.replay_mode)) {
+		pack_sdp_v1_3 = aconn->pack_sdp_v1_3;
+
+		if (aconn->vsdb_info.amd_vsdb_version == 1)
+			packet_type = PACKET_TYPE_FS_V1;
+		else if (aconn->vsdb_info.amd_vsdb_version == 2)
+			packet_type = PACKET_TYPE_FS_V2;
+		else if (aconn->vsdb_info.amd_vsdb_version == 3)
+			packet_type = PACKET_TYPE_FS_V3;
+
+		mod_build_adaptive_sync_infopacket(new_stream, aconn->as_type, NULL,
+					&new_stream->adaptive_sync_infopacket);
+	}
+
+	mod_freesync_build_vrr_infopacket(
+		dm->freesync_module,
+		new_stream,
+		&vrr_params,
+		packet_type,
+		TRANSFER_FUNC_UNKNOWN,
+		&vrr_infopacket,
+		pack_sdp_v1_3);
+
+	new_crtc_state->freesync_vrr_info_changed |=
+		(memcmp(&new_crtc_state->vrr_infopacket,
+			&vrr_infopacket,
+			sizeof(vrr_infopacket)) != 0);
+
+	acrtc->dm_irq_params.vrr_params = vrr_params;
+	new_crtc_state->vrr_infopacket = vrr_infopacket;
+
+	new_stream->vrr_infopacket = vrr_infopacket;
+	new_stream->allow_freesync = mod_freesync_get_freesync_enabled(&vrr_params);
+
+	if (new_crtc_state->freesync_vrr_info_changed)
+		DRM_DEBUG_KMS("VRR packet update: crtc=%u enabled=%d state=%d",
+			      new_crtc_state->base.crtc->base.id,
+			      (int)new_crtc_state->base.vrr_enabled,
+			      (int)vrr_params.state);
+
+	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+}
+
+static void update_stream_irq_parameters(
+	struct amdgpu_display_manager *dm,
+	struct dm_crtc_state *new_crtc_state)
+{
+	struct dc_stream_state *new_stream = new_crtc_state->stream;
+	struct mod_vrr_params vrr_params;
+	struct mod_freesync_config config = new_crtc_state->freesync_config;
+	struct amdgpu_device *adev = dm->adev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_crtc_state->base.crtc);
+	unsigned long flags;
+
+	if (!new_stream)
+		return;
+
+	/*
+	 * TODO: Determine why min/max totals and vrefresh can be 0 here.
+	 * For now it's sufficient to just guard against these conditions.
+	 */
+	if (!new_stream->timing.h_total || !new_stream->timing.v_total)
+		return;
+
+	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+	vrr_params = acrtc->dm_irq_params.vrr_params;
+
+	if (new_crtc_state->vrr_supported &&
+	    config.min_refresh_in_uhz &&
+	    config.max_refresh_in_uhz) {
+		/*
+		 * if freesync compatible mode was set, config.state will be set
+		 * in atomic check
+		 */
+		if (config.state == VRR_STATE_ACTIVE_FIXED && config.fixed_refresh_in_uhz &&
+		    (!drm_atomic_crtc_needs_modeset(&new_crtc_state->base) ||
+		     new_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED)) {
+			vrr_params.max_refresh_in_uhz = config.max_refresh_in_uhz;
+			vrr_params.min_refresh_in_uhz = config.min_refresh_in_uhz;
+			vrr_params.fixed_refresh_in_uhz = config.fixed_refresh_in_uhz;
+			vrr_params.state = VRR_STATE_ACTIVE_FIXED;
+		} else {
+			config.state = new_crtc_state->base.vrr_enabled ?
+						     VRR_STATE_ACTIVE_VARIABLE :
+						     VRR_STATE_INACTIVE;
+		}
+	} else {
+		config.state = VRR_STATE_UNSUPPORTED;
+	}
+
+	mod_freesync_build_vrr_params(dm->freesync_module,
+				      new_stream,
+				      &config, &vrr_params);
+
+	new_crtc_state->freesync_config = config;
+	/* Copy state for access from DM IRQ handler */
+	acrtc->dm_irq_params.freesync_config = config;
+	acrtc->dm_irq_params.active_planes = new_crtc_state->active_planes;
+	acrtc->dm_irq_params.vrr_params = vrr_params;
+	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+}
+
+static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
+					    struct dm_crtc_state *new_state)
+{
+	bool old_vrr_active = amdgpu_dm_crtc_vrr_active(old_state);
+	bool new_vrr_active = amdgpu_dm_crtc_vrr_active(new_state);
+
+	if (!old_vrr_active && new_vrr_active) {
+		/* Transition VRR inactive -> active:
+		 * While VRR is active, we must not disable vblank irq, as a
+		 * reenable after disable would compute bogus vblank/pflip
+		 * timestamps if it likely happened inside display front-porch.
+		 *
+		 * We also need vupdate irq for the actual core vblank handling
+		 * at end of vblank.
+		 */
+		WARN_ON(amdgpu_dm_crtc_set_vupdate_irq(new_state->base.crtc, true) != 0);
+		WARN_ON(drm_crtc_vblank_get(new_state->base.crtc) != 0);
+		DRM_DEBUG_DRIVER("%s: crtc=%u VRR off->on: Get vblank ref\n",
+				 __func__, new_state->base.crtc->base.id);
+	} else if (old_vrr_active && !new_vrr_active) {
+		/* Transition VRR active -> inactive:
+		 * Allow vblank irq disable again for fixed refresh rate.
+		 */
+		WARN_ON(amdgpu_dm_crtc_set_vupdate_irq(new_state->base.crtc, false) != 0);
+		drm_crtc_vblank_put(new_state->base.crtc);
+		DRM_DEBUG_DRIVER("%s: crtc=%u VRR on->off: Drop vblank ref\n",
+				 __func__, new_state->base.crtc->base.id);
+	}
+}
+
+static void amdgpu_dm_commit_cursors(struct drm_atomic_state *state)
+{
+	struct drm_plane *plane;
+	struct drm_plane_state *old_plane_state;
+	int i;
+
+	/*
+	 * TODO: Make this per-stream so we don't issue redundant updates for
+	 * commits with multiple streams.
+	 */
+	for_each_old_plane_in_state(state, plane, old_plane_state, i)
+		if (plane->type == DRM_PLANE_TYPE_CURSOR)
+			amdgpu_dm_plane_handle_cursor_update(plane, old_plane_state);
+}
+
+static inline uint32_t get_mem_type(struct drm_framebuffer *fb)
+{
+	struct amdgpu_bo *abo = gem_to_amdgpu_bo(fb->obj[0]);
+
+	return abo->tbo.resource ? abo->tbo.resource->mem_type : 0;
+}
+
+static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
+				    struct drm_device *dev,
+				    struct amdgpu_display_manager *dm,
+				    struct drm_crtc *pcrtc,
+				    bool wait_for_vblank)
+{
+	u32 i;
+	u64 timestamp_ns = ktime_get_ns();
+	struct drm_plane *plane;
+	struct drm_plane_state *old_plane_state, *new_plane_state;
+	struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
+	struct drm_crtc_state *new_pcrtc_state =
+			drm_atomic_get_new_crtc_state(state, pcrtc);
+	struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
+	struct dm_crtc_state *dm_old_crtc_state =
+			to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
+	int planes_count = 0, vpos, hpos;
+	unsigned long flags;
+	u32 target_vblank, last_flip_vblank;
+	bool vrr_active = amdgpu_dm_crtc_vrr_active(acrtc_state);
+	bool cursor_update = false;
+	bool pflip_present = false;
+	bool dirty_rects_changed = false;
+	struct {
+		struct dc_surface_update surface_updates[MAX_SURFACES];
+		struct dc_plane_info plane_infos[MAX_SURFACES];
+		struct dc_scaling_info scaling_infos[MAX_SURFACES];
+		struct dc_flip_addrs flip_addrs[MAX_SURFACES];
+		struct dc_stream_update stream_update;
+	} *bundle;
+
+	bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
+
+	if (!bundle) {
+		dm_error("Failed to allocate update bundle\n");
+		goto cleanup;
+	}
+
+	/*
+	 * Disable the cursor first if we're disabling all the planes.
+	 * It'll remain on the screen after the planes are re-enabled
+	 * if we don't.
+	 */
+	if (acrtc_state->active_planes == 0)
+		amdgpu_dm_commit_cursors(state);
+
+	/* update planes when needed */
+	for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+		struct drm_crtc *crtc = new_plane_state->crtc;
+		struct drm_crtc_state *new_crtc_state;
+		struct drm_framebuffer *fb = new_plane_state->fb;
+		struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)fb;
+		bool plane_needs_flip;
+		struct dc_plane_state *dc_plane;
+		struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
+
+		/* Cursor plane is handled after stream updates */
+		if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+			if ((fb && crtc == pcrtc) ||
+			    (old_plane_state->fb && old_plane_state->crtc == pcrtc))
+				cursor_update = true;
+
+			continue;
+		}
+
+		if (!fb || !crtc || pcrtc != crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+		if (!new_crtc_state->active)
+			continue;
+
+		dc_plane = dm_new_plane_state->dc_state;
+		if (!dc_plane)
+			continue;
+
+		bundle->surface_updates[planes_count].surface = dc_plane;
+		if (new_pcrtc_state->color_mgmt_changed) {
+			bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
+			bundle->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func;
+			bundle->surface_updates[planes_count].gamut_remap_matrix = &dc_plane->gamut_remap_matrix;
+		}
+
+		amdgpu_dm_plane_fill_dc_scaling_info(dm->adev, new_plane_state,
+				     &bundle->scaling_infos[planes_count]);
+
+		bundle->surface_updates[planes_count].scaling_info =
+			&bundle->scaling_infos[planes_count];
+
+		plane_needs_flip = old_plane_state->fb && new_plane_state->fb;
+
+		pflip_present = pflip_present || plane_needs_flip;
+
+		if (!plane_needs_flip) {
+			planes_count += 1;
+			continue;
+		}
+
+		fill_dc_plane_info_and_addr(
+			dm->adev, new_plane_state,
+			afb->tiling_flags,
+			&bundle->plane_infos[planes_count],
+			&bundle->flip_addrs[planes_count].address,
+			afb->tmz_surface, false);
+
+		drm_dbg_state(state->dev, "plane: id=%d dcc_en=%d\n",
+				 new_plane_state->plane->index,
+				 bundle->plane_infos[planes_count].dcc.enable);
+
+		bundle->surface_updates[planes_count].plane_info =
+			&bundle->plane_infos[planes_count];
+
+		if (acrtc_state->stream->link->psr_settings.psr_feature_enabled ||
+		    acrtc_state->stream->link->replay_settings.replay_feature_enabled) {
+			fill_dc_dirty_rects(plane, old_plane_state,
+					    new_plane_state, new_crtc_state,
+					    &bundle->flip_addrs[planes_count],
+					    &dirty_rects_changed);
+
+			/*
+			 * If the dirty regions changed, PSR-SU need to be disabled temporarily
+			 * and enabled it again after dirty regions are stable to avoid video glitch.
+			 * PSR-SU will be enabled in vblank_control_worker() if user pause the video
+			 * during the PSR-SU was disabled.
+			 */
+			if (acrtc_state->stream->link->psr_settings.psr_version >= DC_PSR_VERSION_SU_1 &&
+			    acrtc_attach->dm_irq_params.allow_psr_entry &&
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+			    !amdgpu_dm_crc_window_is_activated(acrtc_state->base.crtc) &&
+#endif
+			    dirty_rects_changed) {
+				mutex_lock(&dm->dc_lock);
+				acrtc_state->stream->link->psr_settings.psr_dirty_rects_change_timestamp_ns =
+				timestamp_ns;
+				if (acrtc_state->stream->link->psr_settings.psr_allow_active)
+					amdgpu_dm_psr_disable(acrtc_state->stream);
+				mutex_unlock(&dm->dc_lock);
+			}
+		}
+
+		/*
+		 * Only allow immediate flips for fast updates that don't
+		 * change memory domain, FB pitch, DCC state, rotation or
+		 * mirroring.
+		 *
+		 * dm_crtc_helper_atomic_check() only accepts async flips with
+		 * fast updates.
+		 */
+		if (crtc->state->async_flip &&
+		    (acrtc_state->update_type != UPDATE_TYPE_FAST ||
+		     get_mem_type(old_plane_state->fb) != get_mem_type(fb)))
+			drm_warn_once(state->dev,
+				      "[PLANE:%d:%s] async flip with non-fast update\n",
+				      plane->base.id, plane->name);
+
+		bundle->flip_addrs[planes_count].flip_immediate =
+			crtc->state->async_flip &&
+			acrtc_state->update_type == UPDATE_TYPE_FAST &&
+			get_mem_type(old_plane_state->fb) == get_mem_type(fb);
+
+		timestamp_ns = ktime_get_ns();
+		bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000);
+		bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count];
+		bundle->surface_updates[planes_count].surface = dc_plane;
+
+		if (!bundle->surface_updates[planes_count].surface) {
+			DRM_ERROR("No surface for CRTC: id=%d\n",
+					acrtc_attach->crtc_id);
+			continue;
+		}
+
+		if (plane == pcrtc->primary)
+			update_freesync_state_on_stream(
+				dm,
+				acrtc_state,
+				acrtc_state->stream,
+				dc_plane,
+				bundle->flip_addrs[planes_count].flip_timestamp_in_us);
+
+		drm_dbg_state(state->dev, "%s Flipping to hi: 0x%x, low: 0x%x\n",
+				 __func__,
+				 bundle->flip_addrs[planes_count].address.grph.addr.high_part,
+				 bundle->flip_addrs[planes_count].address.grph.addr.low_part);
+
+		planes_count += 1;
+
+	}
+
+	if (pflip_present) {
+		if (!vrr_active) {
+			/* Use old throttling in non-vrr fixed refresh rate mode
+			 * to keep flip scheduling based on target vblank counts
+			 * working in a backwards compatible way, e.g., for
+			 * clients using the GLX_OML_sync_control extension or
+			 * DRI3/Present extension with defined target_msc.
+			 */
+			last_flip_vblank = amdgpu_get_vblank_counter_kms(pcrtc);
+		} else {
+			/* For variable refresh rate mode only:
+			 * Get vblank of last completed flip to avoid > 1 vrr
+			 * flips per video frame by use of throttling, but allow
+			 * flip programming anywhere in the possibly large
+			 * variable vrr vblank interval for fine-grained flip
+			 * timing control and more opportunity to avoid stutter
+			 * on late submission of flips.
+			 */
+			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+			last_flip_vblank = acrtc_attach->dm_irq_params.last_flip_vblank;
+			spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+		}
+
+		target_vblank = last_flip_vblank + wait_for_vblank;
+
+		/*
+		 * Wait until we're out of the vertical blank period before the one
+		 * targeted by the flip
+		 */
+		while ((acrtc_attach->enabled &&
+			(amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id,
+							    0, &vpos, &hpos, NULL,
+							    NULL, &pcrtc->hwmode)
+			 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
+			(DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
+			(int)(target_vblank -
+			  amdgpu_get_vblank_counter_kms(pcrtc)) > 0)) {
+			usleep_range(1000, 1100);
+		}
+
+		/**
+		 * Prepare the flip event for the pageflip interrupt to handle.
+		 *
+		 * This only works in the case where we've already turned on the
+		 * appropriate hardware blocks (eg. HUBP) so in the transition case
+		 * from 0 -> n planes we have to skip a hardware generated event
+		 * and rely on sending it from software.
+		 */
+		if (acrtc_attach->base.state->event &&
+		    acrtc_state->active_planes > 0) {
+			drm_crtc_vblank_get(pcrtc);
+
+			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+
+			WARN_ON(acrtc_attach->pflip_status != AMDGPU_FLIP_NONE);
+			prepare_flip_isr(acrtc_attach);
+
+			spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+		}
+
+		if (acrtc_state->stream) {
+			if (acrtc_state->freesync_vrr_info_changed)
+				bundle->stream_update.vrr_infopacket =
+					&acrtc_state->stream->vrr_infopacket;
+		}
+	} else if (cursor_update && acrtc_state->active_planes > 0 &&
+		   acrtc_attach->base.state->event) {
+		drm_crtc_vblank_get(pcrtc);
+
+		spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+
+		acrtc_attach->event = acrtc_attach->base.state->event;
+		acrtc_attach->base.state->event = NULL;
+
+		spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+	}
+
+	/* Update the planes if changed or disable if we don't have any. */
+	if ((planes_count || acrtc_state->active_planes == 0) &&
+		acrtc_state->stream) {
+		/*
+		 * If PSR or idle optimizations are enabled then flush out
+		 * any pending work before hardware programming.
+		 */
+		if (dm->vblank_control_workqueue)
+			flush_workqueue(dm->vblank_control_workqueue);
+
+		bundle->stream_update.stream = acrtc_state->stream;
+		if (new_pcrtc_state->mode_changed) {
+			bundle->stream_update.src = acrtc_state->stream->src;
+			bundle->stream_update.dst = acrtc_state->stream->dst;
+		}
+
+		if (new_pcrtc_state->color_mgmt_changed) {
+			/*
+			 * TODO: This isn't fully correct since we've actually
+			 * already modified the stream in place.
+			 */
+			bundle->stream_update.gamut_remap =
+				&acrtc_state->stream->gamut_remap_matrix;
+			bundle->stream_update.output_csc_transform =
+				&acrtc_state->stream->csc_color_matrix;
+			bundle->stream_update.out_transfer_func =
+				acrtc_state->stream->out_transfer_func;
+		}
+
+		acrtc_state->stream->abm_level = acrtc_state->abm_level;
+		if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
+			bundle->stream_update.abm_level = &acrtc_state->abm_level;
+
+		mutex_lock(&dm->dc_lock);
+		if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
+				acrtc_state->stream->link->psr_settings.psr_allow_active)
+			amdgpu_dm_psr_disable(acrtc_state->stream);
+		mutex_unlock(&dm->dc_lock);
+
+		/*
+		 * If FreeSync state on the stream has changed then we need to
+		 * re-adjust the min/max bounds now that DC doesn't handle this
+		 * as part of commit.
+		 */
+		if (is_dc_timing_adjust_needed(dm_old_crtc_state, acrtc_state)) {
+			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+			dc_stream_adjust_vmin_vmax(
+				dm->dc, acrtc_state->stream,
+				&acrtc_attach->dm_irq_params.vrr_params.adjust);
+			spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+		}
+		mutex_lock(&dm->dc_lock);
+		update_planes_and_stream_adapter(dm->dc,
+					 acrtc_state->update_type,
+					 planes_count,
+					 acrtc_state->stream,
+					 &bundle->stream_update,
+					 bundle->surface_updates);
+
+		/**
+		 * Enable or disable the interrupts on the backend.
+		 *
+		 * Most pipes are put into power gating when unused.
+		 *
+		 * When power gating is enabled on a pipe we lose the
+		 * interrupt enablement state when power gating is disabled.
+		 *
+		 * So we need to update the IRQ control state in hardware
+		 * whenever the pipe turns on (since it could be previously
+		 * power gated) or off (since some pipes can't be power gated
+		 * on some ASICs).
+		 */
+		if (dm_old_crtc_state->active_planes != acrtc_state->active_planes)
+			dm_update_pflip_irq_state(drm_to_adev(dev),
+						  acrtc_attach);
+
+		if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
+				acrtc_state->stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED &&
+				!acrtc_state->stream->link->psr_settings.psr_feature_enabled)
+			amdgpu_dm_link_setup_psr(acrtc_state->stream);
+
+		/* Decrement skip count when PSR is enabled and we're doing fast updates. */
+		if (acrtc_state->update_type == UPDATE_TYPE_FAST &&
+		    acrtc_state->stream->link->psr_settings.psr_feature_enabled) {
+			struct amdgpu_dm_connector *aconn =
+				(struct amdgpu_dm_connector *)acrtc_state->stream->dm_stream_context;
+
+			if (aconn->psr_skip_count > 0)
+				aconn->psr_skip_count--;
+
+			/* Allow PSR when skip count is 0. */
+			acrtc_attach->dm_irq_params.allow_psr_entry = !aconn->psr_skip_count;
+
+			/*
+			 * If sink supports PSR SU, there is no need to rely on
+			 * a vblank event disable request to enable PSR. PSR SU
+			 * can be enabled immediately once OS demonstrates an
+			 * adequate number of fast atomic commits to notify KMD
+			 * of update events. See `vblank_control_worker()`.
+			 */
+			if (acrtc_state->stream->link->psr_settings.psr_version >= DC_PSR_VERSION_SU_1 &&
+			    acrtc_attach->dm_irq_params.allow_psr_entry &&
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+			    !amdgpu_dm_crc_window_is_activated(acrtc_state->base.crtc) &&
+#endif
+			    !acrtc_state->stream->link->psr_settings.psr_allow_active &&
+			    (timestamp_ns -
+			    acrtc_state->stream->link->psr_settings.psr_dirty_rects_change_timestamp_ns) >
+			    500000000)
+				amdgpu_dm_psr_enable(acrtc_state->stream);
+		} else {
+			acrtc_attach->dm_irq_params.allow_psr_entry = false;
+		}
+
+		mutex_unlock(&dm->dc_lock);
+	}
+
+	/*
+	 * Update cursor state *after* programming all the planes.
+	 * This avoids redundant programming in the case where we're going
+	 * to be disabling a single plane - those pipes are being disabled.
+	 */
+	if (acrtc_state->active_planes)
+		amdgpu_dm_commit_cursors(state);
+
+cleanup:
+	kfree(bundle);
+}
+
+static void amdgpu_dm_commit_audio(struct drm_device *dev,
+				   struct drm_atomic_state *state)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct drm_connector_state *old_con_state, *new_con_state;
+	struct drm_crtc_state *new_crtc_state;
+	struct dm_crtc_state *new_dm_crtc_state;
+	const struct dc_stream_status *status;
+	int i, inst;
+
+	/* Notify device removals. */
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		if (old_con_state->crtc != new_con_state->crtc) {
+			/* CRTC changes require notification. */
+			goto notify;
+		}
+
+		if (!new_con_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(
+			state, new_con_state->crtc);
+
+		if (!new_crtc_state)
+			continue;
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+			continue;
+
+notify:
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		mutex_lock(&adev->dm.audio_lock);
+		inst = aconnector->audio_inst;
+		aconnector->audio_inst = -1;
+		mutex_unlock(&adev->dm.audio_lock);
+
+		amdgpu_dm_audio_eld_notify(adev, inst);
+	}
+
+	/* Notify audio device additions. */
+	for_each_new_connector_in_state(state, connector, new_con_state, i) {
+		if (!new_con_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(
+			state, new_con_state->crtc);
+
+		if (!new_crtc_state)
+			continue;
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+			continue;
+
+		new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
+		if (!new_dm_crtc_state->stream)
+			continue;
+
+		status = dc_stream_get_status(new_dm_crtc_state->stream);
+		if (!status)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		mutex_lock(&adev->dm.audio_lock);
+		inst = status->audio_inst;
+		aconnector->audio_inst = inst;
+		mutex_unlock(&adev->dm.audio_lock);
+
+		amdgpu_dm_audio_eld_notify(adev, inst);
+	}
+}
+
+/*
+ * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC
+ * @crtc_state: the DRM CRTC state
+ * @stream_state: the DC stream state.
+ *
+ * Copy the mirrored transient state flags from DRM, to DC. It is used to bring
+ * a dc_stream_state's flags in sync with a drm_crtc_state's flags.
+ */
+static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state,
+						struct dc_stream_state *stream_state)
+{
+	stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state);
+}
+
+static void amdgpu_dm_commit_streams(struct drm_atomic_state *state,
+					struct dc_state *dc_state)
+{
+	struct drm_device *dev = state->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+	bool mode_set_reset_required = false;
+	u32 i;
+
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
+				      new_crtc_state, i) {
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		if (old_crtc_state->active &&
+		    (!new_crtc_state->active ||
+		     drm_atomic_crtc_needs_modeset(new_crtc_state))) {
+			manage_dm_interrupts(adev, acrtc, false);
+			dc_stream_release(dm_old_crtc_state->stream);
+		}
+	}
+
+	drm_atomic_helper_calc_timestamping_constants(state);
+
+	/* update changed items */
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		drm_dbg_state(state->dev,
+			"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n",
+			acrtc->crtc_id,
+			new_crtc_state->enable,
+			new_crtc_state->active,
+			new_crtc_state->planes_changed,
+			new_crtc_state->mode_changed,
+			new_crtc_state->active_changed,
+			new_crtc_state->connectors_changed);
+
+		/* Disable cursor if disabling crtc */
+		if (old_crtc_state->active && !new_crtc_state->active) {
+			struct dc_cursor_position position;
+
+			memset(&position, 0, sizeof(position));
+			mutex_lock(&dm->dc_lock);
+			dc_stream_set_cursor_position(dm_old_crtc_state->stream, &position);
+			mutex_unlock(&dm->dc_lock);
+		}
+
+		/* Copy all transient state flags into dc state */
+		if (dm_new_crtc_state->stream) {
+			amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base,
+							    dm_new_crtc_state->stream);
+		}
+
+		/* handles headless hotplug case, updating new_state and
+		 * aconnector as needed
+		 */
+
+		if (amdgpu_dm_crtc_modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
+
+			DRM_DEBUG_ATOMIC("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
+
+			if (!dm_new_crtc_state->stream) {
+				/*
+				 * this could happen because of issues with
+				 * userspace notifications delivery.
+				 * In this case userspace tries to set mode on
+				 * display which is disconnected in fact.
+				 * dc_sink is NULL in this case on aconnector.
+				 * We expect reset mode will come soon.
+				 *
+				 * This can also happen when unplug is done
+				 * during resume sequence ended
+				 *
+				 * In this case, we want to pretend we still
+				 * have a sink to keep the pipe running so that
+				 * hw state is consistent with the sw state
+				 */
+				DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
+						__func__, acrtc->base.base.id);
+				continue;
+			}
+
+			if (dm_old_crtc_state->stream)
+				remove_stream(adev, acrtc, dm_old_crtc_state->stream);
+
+			pm_runtime_get_noresume(dev->dev);
+
+			acrtc->enabled = true;
+			acrtc->hw_mode = new_crtc_state->mode;
+			crtc->hwmode = new_crtc_state->mode;
+			mode_set_reset_required = true;
+		} else if (modereset_required(new_crtc_state)) {
+			DRM_DEBUG_ATOMIC("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
+			/* i.e. reset mode */
+			if (dm_old_crtc_state->stream)
+				remove_stream(adev, acrtc, dm_old_crtc_state->stream);
+
+			mode_set_reset_required = true;
+		}
+	} /* for_each_crtc_in_state() */
+
+	/* if there mode set or reset, disable eDP PSR */
+	if (mode_set_reset_required) {
+		if (dm->vblank_control_workqueue)
+			flush_workqueue(dm->vblank_control_workqueue);
+
+		amdgpu_dm_psr_disable_all(dm);
+	}
+
+	dm_enable_per_frame_crtc_master_sync(dc_state);
+	mutex_lock(&dm->dc_lock);
+	WARN_ON(!dc_commit_streams(dm->dc, dc_state->streams, dc_state->stream_count));
+
+	/* Allow idle optimization when vblank count is 0 for display off */
+	if (dm->active_vblank_irq_count == 0)
+		dc_allow_idle_optimizations(dm->dc, true);
+	mutex_unlock(&dm->dc_lock);
+
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+		if (dm_new_crtc_state->stream != NULL) {
+			const struct dc_stream_status *status =
+					dc_stream_get_status(dm_new_crtc_state->stream);
+
+			if (!status)
+				status = dc_stream_get_status_from_state(dc_state,
+									 dm_new_crtc_state->stream);
+			if (!status)
+				DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc);
+			else
+				acrtc->otg_inst = status->primary_otg_inst;
+		}
+	}
+}
+
+/**
+ * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation.
+ * @state: The atomic state to commit
+ *
+ * This will tell DC to commit the constructed DC state from atomic_check,
+ * programming the hardware. Any failures here implies a hardware failure, since
+ * atomic check should have filtered anything non-kosher.
+ */
+static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct dm_atomic_state *dm_state;
+	struct dc_state *dc_state = NULL;
+	u32 i, j;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	unsigned long flags;
+	bool wait_for_vblank = true;
+	struct drm_connector *connector;
+	struct drm_connector_state *old_con_state, *new_con_state;
+	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+	int crtc_disable_count = 0;
+
+	trace_amdgpu_dm_atomic_commit_tail_begin(state);
+
+	drm_atomic_helper_update_legacy_modeset_state(dev, state);
+	drm_dp_mst_atomic_wait_for_dependencies(state);
+
+	dm_state = dm_atomic_get_new_state(state);
+	if (dm_state && dm_state->context) {
+		dc_state = dm_state->context;
+		amdgpu_dm_commit_streams(state, dc_state);
+	}
+
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+		struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+		if (!adev->dm.hdcp_workqueue)
+			continue;
+
+		pr_debug("[HDCP_DM] -------------- i : %x ----------\n", i);
+
+		if (!connector)
+			continue;
+
+		pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
+			connector->index, connector->status, connector->dpms);
+		pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
+			old_con_state->content_protection, new_con_state->content_protection);
+
+		if (aconnector->dc_sink) {
+			if (aconnector->dc_sink->sink_signal != SIGNAL_TYPE_VIRTUAL &&
+				aconnector->dc_sink->sink_signal != SIGNAL_TYPE_NONE) {
+				pr_debug("[HDCP_DM] pipe_ctx dispname=%s\n",
+				aconnector->dc_sink->edid_caps.display_name);
+			}
+		}
+
+		new_crtc_state = NULL;
+		old_crtc_state = NULL;
+
+		if (acrtc) {
+			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
+		}
+
+		if (old_crtc_state)
+			pr_debug("old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+			old_crtc_state->enable,
+			old_crtc_state->active,
+			old_crtc_state->mode_changed,
+			old_crtc_state->active_changed,
+			old_crtc_state->connectors_changed);
+
+		if (new_crtc_state)
+			pr_debug("NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+			new_crtc_state->enable,
+			new_crtc_state->active,
+			new_crtc_state->mode_changed,
+			new_crtc_state->active_changed,
+			new_crtc_state->connectors_changed);
+	}
+
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+		struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+		if (!adev->dm.hdcp_workqueue)
+			continue;
+
+		new_crtc_state = NULL;
+		old_crtc_state = NULL;
+
+		if (acrtc) {
+			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
+		}
+
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+		if (dm_new_crtc_state && dm_new_crtc_state->stream == NULL &&
+		    connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
+			hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
+			new_con_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+			dm_new_con_state->update_hdcp = true;
+			continue;
+		}
+
+		if (is_content_protection_different(new_crtc_state, old_crtc_state, new_con_state,
+											old_con_state, connector, adev->dm.hdcp_workqueue)) {
+			/* when display is unplugged from mst hub, connctor will
+			 * be destroyed within dm_dp_mst_connector_destroy. connector
+			 * hdcp perperties, like type, undesired, desired, enabled,
+			 * will be lost. So, save hdcp properties into hdcp_work within
+			 * amdgpu_dm_atomic_commit_tail. if the same display is
+			 * plugged back with same display index, its hdcp properties
+			 * will be retrieved from hdcp_work within dm_dp_mst_get_modes
+			 */
+
+			bool enable_encryption = false;
+
+			if (new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED)
+				enable_encryption = true;
+
+			if (aconnector->dc_link && aconnector->dc_sink &&
+				aconnector->dc_link->type == dc_connection_mst_branch) {
+				struct hdcp_workqueue *hdcp_work = adev->dm.hdcp_workqueue;
+				struct hdcp_workqueue *hdcp_w =
+					&hdcp_work[aconnector->dc_link->link_index];
+
+				hdcp_w->hdcp_content_type[connector->index] =
+					new_con_state->hdcp_content_type;
+				hdcp_w->content_protection[connector->index] =
+					new_con_state->content_protection;
+			}
+
+			if (new_crtc_state && new_crtc_state->mode_changed &&
+				new_con_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED)
+				enable_encryption = true;
+
+			DRM_INFO("[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption);
+
+			hdcp_update_display(
+				adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector,
+				new_con_state->hdcp_content_type, enable_encryption);
+		}
+	}
+
+	/* Handle connector state changes */
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+		struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+		struct dc_surface_update *dummy_updates;
+		struct dc_stream_update stream_update;
+		struct dc_info_packet hdr_packet;
+		struct dc_stream_status *status = NULL;
+		bool abm_changed, hdr_changed, scaling_changed;
+
+		memset(&stream_update, 0, sizeof(stream_update));
+
+		if (acrtc) {
+			new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+			old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
+		}
+
+		/* Skip any modesets/resets */
+		if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
+			continue;
+
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		scaling_changed = is_scaling_state_different(dm_new_con_state,
+							     dm_old_con_state);
+
+		abm_changed = dm_new_crtc_state->abm_level !=
+			      dm_old_crtc_state->abm_level;
+
+		hdr_changed =
+			!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state);
+
+		if (!scaling_changed && !abm_changed && !hdr_changed)
+			continue;
+
+		stream_update.stream = dm_new_crtc_state->stream;
+		if (scaling_changed) {
+			update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
+					dm_new_con_state, dm_new_crtc_state->stream);
+
+			stream_update.src = dm_new_crtc_state->stream->src;
+			stream_update.dst = dm_new_crtc_state->stream->dst;
+		}
+
+		if (abm_changed) {
+			dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level;
+
+			stream_update.abm_level = &dm_new_crtc_state->abm_level;
+		}
+
+		if (hdr_changed) {
+			fill_hdr_info_packet(new_con_state, &hdr_packet);
+			stream_update.hdr_static_metadata = &hdr_packet;
+		}
+
+		status = dc_stream_get_status(dm_new_crtc_state->stream);
+
+		if (WARN_ON(!status))
+			continue;
+
+		WARN_ON(!status->plane_count);
+
+		/*
+		 * TODO: DC refuses to perform stream updates without a dc_surface_update.
+		 * Here we create an empty update on each plane.
+		 * To fix this, DC should permit updating only stream properties.
+		 */
+		dummy_updates = kzalloc(sizeof(struct dc_surface_update) * MAX_SURFACES, GFP_ATOMIC);
+		for (j = 0; j < status->plane_count; j++)
+			dummy_updates[j].surface = status->plane_states[0];
+
+
+		mutex_lock(&dm->dc_lock);
+		dc_update_planes_and_stream(dm->dc,
+					    dummy_updates,
+					    status->plane_count,
+					    dm_new_crtc_state->stream,
+					    &stream_update);
+		mutex_unlock(&dm->dc_lock);
+		kfree(dummy_updates);
+	}
+
+	/**
+	 * Enable interrupts for CRTCs that are newly enabled or went through
+	 * a modeset. It was intentionally deferred until after the front end
+	 * state was modified to wait until the OTG was on and so the IRQ
+	 * handlers didn't access stale or invalid state.
+	 */
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+#ifdef CONFIG_DEBUG_FS
+		enum amdgpu_dm_pipe_crc_source cur_crc_src;
+#endif
+		/* Count number of newly disabled CRTCs for dropping PM refs later. */
+		if (old_crtc_state->active && !new_crtc_state->active)
+			crtc_disable_count++;
+
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		/* For freesync config update on crtc state and params for irq */
+		update_stream_irq_parameters(dm, dm_new_crtc_state);
+
+#ifdef CONFIG_DEBUG_FS
+		spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+		cur_crc_src = acrtc->dm_irq_params.crc_src;
+		spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+#endif
+
+		if (new_crtc_state->active &&
+		    (!old_crtc_state->active ||
+		     drm_atomic_crtc_needs_modeset(new_crtc_state))) {
+			dc_stream_retain(dm_new_crtc_state->stream);
+			acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
+			manage_dm_interrupts(adev, acrtc, true);
+		}
+		/* Handle vrr on->off / off->on transitions */
+		amdgpu_dm_handle_vrr_transition(dm_old_crtc_state, dm_new_crtc_state);
+
+#ifdef CONFIG_DEBUG_FS
+		if (new_crtc_state->active &&
+		    (!old_crtc_state->active ||
+		     drm_atomic_crtc_needs_modeset(new_crtc_state))) {
+			/**
+			 * Frontend may have changed so reapply the CRC capture
+			 * settings for the stream.
+			 */
+			if (amdgpu_dm_is_valid_crc_source(cur_crc_src)) {
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+				if (amdgpu_dm_crc_window_is_activated(crtc)) {
+					spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+					acrtc->dm_irq_params.window_param.update_win = true;
+
+					/**
+					 * It takes 2 frames for HW to stably generate CRC when
+					 * resuming from suspend, so we set skip_frame_cnt 2.
+					 */
+					acrtc->dm_irq_params.window_param.skip_frame_cnt = 2;
+					spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+				}
+#endif
+				if (amdgpu_dm_crtc_configure_crc_source(
+					crtc, dm_new_crtc_state, cur_crc_src))
+					DRM_DEBUG_DRIVER("Failed to configure crc source");
+			}
+		}
+#endif
+	}
+
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, j)
+		if (new_crtc_state->async_flip)
+			wait_for_vblank = false;
+
+	/* update planes when needed per crtc*/
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) {
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+		if (dm_new_crtc_state->stream)
+			amdgpu_dm_commit_planes(state, dev, dm, crtc, wait_for_vblank);
+	}
+
+	/* Update audio instances for each connector. */
+	amdgpu_dm_commit_audio(dev, state);
+
+	/* restore the backlight level */
+	for (i = 0; i < dm->num_of_edps; i++) {
+		if (dm->backlight_dev[i] &&
+		    (dm->actual_brightness[i] != dm->brightness[i]))
+			amdgpu_dm_backlight_set_level(dm, i, dm->brightness[i]);
+	}
+
+	/*
+	 * send vblank event on all events not handled in flip and
+	 * mark consumed event for drm_atomic_helper_commit_hw_done
+	 */
+	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+
+		if (new_crtc_state->event)
+			drm_send_event_locked(dev, &new_crtc_state->event->base);
+
+		new_crtc_state->event = NULL;
+	}
+	spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
+
+	/* Signal HW programming completion */
+	drm_atomic_helper_commit_hw_done(state);
+
+	if (wait_for_vblank)
+		drm_atomic_helper_wait_for_flip_done(dev, state);
+
+	drm_atomic_helper_cleanup_planes(dev, state);
+
+	/* Don't free the memory if we are hitting this as part of suspend.
+	 * This way we don't free any memory during suspend; see
+	 * amdgpu_bo_free_kernel().  The memory will be freed in the first
+	 * non-suspend modeset or when the driver is torn down.
+	 */
+	if (!adev->in_suspend) {
+		/* return the stolen vga memory back to VRAM */
+		if (!adev->mman.keep_stolen_vga_memory)
+			amdgpu_bo_free_kernel(&adev->mman.stolen_vga_memory, NULL, NULL);
+		amdgpu_bo_free_kernel(&adev->mman.stolen_extended_memory, NULL, NULL);
+	}
+
+	/*
+	 * Finally, drop a runtime PM reference for each newly disabled CRTC,
+	 * so we can put the GPU into runtime suspend if we're not driving any
+	 * displays anymore
+	 */
+	for (i = 0; i < crtc_disable_count; i++)
+		pm_runtime_put_autosuspend(dev->dev);
+	pm_runtime_mark_last_busy(dev->dev);
+}
+
+static int dm_force_atomic_commit(struct drm_connector *connector)
+{
+	int ret = 0;
+	struct drm_device *ddev = connector->dev;
+	struct drm_atomic_state *state = drm_atomic_state_alloc(ddev);
+	struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
+	struct drm_plane *plane = disconnected_acrtc->base.primary;
+	struct drm_connector_state *conn_state;
+	struct drm_crtc_state *crtc_state;
+	struct drm_plane_state *plane_state;
+
+	if (!state)
+		return -ENOMEM;
+
+	state->acquire_ctx = ddev->mode_config.acquire_ctx;
+
+	/* Construct an atomic state to restore previous display setting */
+
+	/*
+	 * Attach connectors to drm_atomic_state
+	 */
+	conn_state = drm_atomic_get_connector_state(state, connector);
+
+	ret = PTR_ERR_OR_ZERO(conn_state);
+	if (ret)
+		goto out;
+
+	/* Attach crtc to drm_atomic_state*/
+	crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base);
+
+	ret = PTR_ERR_OR_ZERO(crtc_state);
+	if (ret)
+		goto out;
+
+	/* force a restore */
+	crtc_state->mode_changed = true;
+
+	/* Attach plane to drm_atomic_state */
+	plane_state = drm_atomic_get_plane_state(state, plane);
+
+	ret = PTR_ERR_OR_ZERO(plane_state);
+	if (ret)
+		goto out;
+
+	/* Call commit internally with the state we just constructed */
+	ret = drm_atomic_commit(state);
+
+out:
+	drm_atomic_state_put(state);
+	if (ret)
+		DRM_ERROR("Restoring old state failed with %i\n", ret);
+
+	return ret;
+}
+
+/*
+ * This function handles all cases when set mode does not come upon hotplug.
+ * This includes when a display is unplugged then plugged back into the
+ * same port and when running without usermode desktop manager supprot
+ */
+void dm_restore_drm_connector_state(struct drm_device *dev,
+				    struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct amdgpu_crtc *disconnected_acrtc;
+	struct dm_crtc_state *acrtc_state;
+
+	if (!aconnector->dc_sink || !connector->state || !connector->encoder)
+		return;
+
+	disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
+	if (!disconnected_acrtc)
+		return;
+
+	acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state);
+	if (!acrtc_state->stream)
+		return;
+
+	/*
+	 * If the previous sink is not released and different from the current,
+	 * we deduce we are in a state where we can not rely on usermode call
+	 * to turn on the display, so we do it here
+	 */
+	if (acrtc_state->stream->sink != aconnector->dc_sink)
+		dm_force_atomic_commit(&aconnector->base);
+}
+
+/*
+ * Grabs all modesetting locks to serialize against any blocking commits,
+ * Waits for completion of all non blocking commits.
+ */
+static int do_aquire_global_lock(struct drm_device *dev,
+				 struct drm_atomic_state *state)
+{
+	struct drm_crtc *crtc;
+	struct drm_crtc_commit *commit;
+	long ret;
+
+	/*
+	 * Adding all modeset locks to aquire_ctx will
+	 * ensure that when the framework release it the
+	 * extra locks we are locking here will get released to
+	 */
+	ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
+	if (ret)
+		return ret;
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		spin_lock(&crtc->commit_lock);
+		commit = list_first_entry_or_null(&crtc->commit_list,
+				struct drm_crtc_commit, commit_entry);
+		if (commit)
+			drm_crtc_commit_get(commit);
+		spin_unlock(&crtc->commit_lock);
+
+		if (!commit)
+			continue;
+
+		/*
+		 * Make sure all pending HW programming completed and
+		 * page flips done
+		 */
+		ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ);
+
+		if (ret > 0)
+			ret = wait_for_completion_interruptible_timeout(
+					&commit->flip_done, 10*HZ);
+
+		if (ret == 0)
+			DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done timed out\n",
+				  crtc->base.id, crtc->name);
+
+		drm_crtc_commit_put(commit);
+	}
+
+	return ret < 0 ? ret : 0;
+}
+
+static void get_freesync_config_for_crtc(
+	struct dm_crtc_state *new_crtc_state,
+	struct dm_connector_state *new_con_state)
+{
+	struct mod_freesync_config config = {0};
+	struct amdgpu_dm_connector *aconnector =
+			to_amdgpu_dm_connector(new_con_state->base.connector);
+	struct drm_display_mode *mode = &new_crtc_state->base.mode;
+	int vrefresh = drm_mode_vrefresh(mode);
+	bool fs_vid_mode = false;
+
+	new_crtc_state->vrr_supported = new_con_state->freesync_capable &&
+					vrefresh >= aconnector->min_vfreq &&
+					vrefresh <= aconnector->max_vfreq;
+
+	if (new_crtc_state->vrr_supported) {
+		new_crtc_state->stream->ignore_msa_timing_param = true;
+		fs_vid_mode = new_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED;
+
+		config.min_refresh_in_uhz = aconnector->min_vfreq * 1000000;
+		config.max_refresh_in_uhz = aconnector->max_vfreq * 1000000;
+		config.vsif_supported = true;
+		config.btr = true;
+
+		if (fs_vid_mode) {
+			config.state = VRR_STATE_ACTIVE_FIXED;
+			config.fixed_refresh_in_uhz = new_crtc_state->freesync_config.fixed_refresh_in_uhz;
+			goto out;
+		} else if (new_crtc_state->base.vrr_enabled) {
+			config.state = VRR_STATE_ACTIVE_VARIABLE;
+		} else {
+			config.state = VRR_STATE_INACTIVE;
+		}
+	}
+out:
+	new_crtc_state->freesync_config = config;
+}
+
+static void reset_freesync_config_for_crtc(
+	struct dm_crtc_state *new_crtc_state)
+{
+	new_crtc_state->vrr_supported = false;
+
+	memset(&new_crtc_state->vrr_infopacket, 0,
+	       sizeof(new_crtc_state->vrr_infopacket));
+}
+
+static bool
+is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state,
+				 struct drm_crtc_state *new_crtc_state)
+{
+	const struct drm_display_mode *old_mode, *new_mode;
+
+	if (!old_crtc_state || !new_crtc_state)
+		return false;
+
+	old_mode = &old_crtc_state->mode;
+	new_mode = &new_crtc_state->mode;
+
+	if (old_mode->clock       == new_mode->clock &&
+	    old_mode->hdisplay    == new_mode->hdisplay &&
+	    old_mode->vdisplay    == new_mode->vdisplay &&
+	    old_mode->htotal      == new_mode->htotal &&
+	    old_mode->vtotal      != new_mode->vtotal &&
+	    old_mode->hsync_start == new_mode->hsync_start &&
+	    old_mode->vsync_start != new_mode->vsync_start &&
+	    old_mode->hsync_end   == new_mode->hsync_end &&
+	    old_mode->vsync_end   != new_mode->vsync_end &&
+	    old_mode->hskew       == new_mode->hskew &&
+	    old_mode->vscan       == new_mode->vscan &&
+	    (old_mode->vsync_end - old_mode->vsync_start) ==
+	    (new_mode->vsync_end - new_mode->vsync_start))
+		return true;
+
+	return false;
+}
+
+static void set_freesync_fixed_config(struct dm_crtc_state *dm_new_crtc_state)
+{
+	u64 num, den, res;
+	struct drm_crtc_state *new_crtc_state = &dm_new_crtc_state->base;
+
+	dm_new_crtc_state->freesync_config.state = VRR_STATE_ACTIVE_FIXED;
+
+	num = (unsigned long long)new_crtc_state->mode.clock * 1000 * 1000000;
+	den = (unsigned long long)new_crtc_state->mode.htotal *
+	      (unsigned long long)new_crtc_state->mode.vtotal;
+
+	res = div_u64(num, den);
+	dm_new_crtc_state->freesync_config.fixed_refresh_in_uhz = res;
+}
+
+static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
+			 struct drm_atomic_state *state,
+			 struct drm_crtc *crtc,
+			 struct drm_crtc_state *old_crtc_state,
+			 struct drm_crtc_state *new_crtc_state,
+			 bool enable,
+			 bool *lock_and_validation_needed)
+{
+	struct dm_atomic_state *dm_state = NULL;
+	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+	struct dc_stream_state *new_stream;
+	int ret = 0;
+
+	/*
+	 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set
+	 * update changed items
+	 */
+	struct amdgpu_crtc *acrtc = NULL;
+	struct amdgpu_dm_connector *aconnector = NULL;
+	struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL;
+	struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL;
+
+	new_stream = NULL;
+
+	dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+	dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+	acrtc = to_amdgpu_crtc(crtc);
+	aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
+
+	/* TODO This hack should go away */
+	if (aconnector && enable) {
+		/* Make sure fake sink is created in plug-in scenario */
+		drm_new_conn_state = drm_atomic_get_new_connector_state(state,
+							    &aconnector->base);
+		drm_old_conn_state = drm_atomic_get_old_connector_state(state,
+							    &aconnector->base);
+
+		if (IS_ERR(drm_new_conn_state)) {
+			ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
+			goto fail;
+		}
+
+		dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
+		dm_old_conn_state = to_dm_connector_state(drm_old_conn_state);
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+			goto skip_modeset;
+
+		new_stream = create_validate_stream_for_sink(aconnector,
+							     &new_crtc_state->mode,
+							     dm_new_conn_state,
+							     dm_old_crtc_state->stream);
+
+		/*
+		 * we can have no stream on ACTION_SET if a display
+		 * was disconnected during S3, in this case it is not an
+		 * error, the OS will be updated after detection, and
+		 * will do the right thing on next atomic commit
+		 */
+
+		if (!new_stream) {
+			DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
+					__func__, acrtc->base.base.id);
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		/*
+		 * TODO: Check VSDB bits to decide whether this should
+		 * be enabled or not.
+		 */
+		new_stream->triggered_crtc_reset.enabled =
+			dm->force_timing_sync;
+
+		dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
+
+		ret = fill_hdr_info_packet(drm_new_conn_state,
+					   &new_stream->hdr_static_metadata);
+		if (ret)
+			goto fail;
+
+		/*
+		 * If we already removed the old stream from the context
+		 * (and set the new stream to NULL) then we can't reuse
+		 * the old stream even if the stream and scaling are unchanged.
+		 * We'll hit the BUG_ON and black screen.
+		 *
+		 * TODO: Refactor this function to allow this check to work
+		 * in all conditions.
+		 */
+		if (dm_new_crtc_state->stream &&
+		    is_timing_unchanged_for_freesync(new_crtc_state, old_crtc_state))
+			goto skip_modeset;
+
+		if (dm_new_crtc_state->stream &&
+		    dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
+		    dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) {
+			new_crtc_state->mode_changed = false;
+			DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d",
+					 new_crtc_state->mode_changed);
+		}
+	}
+
+	/* mode_changed flag may get updated above, need to check again */
+	if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+		goto skip_modeset;
+
+	drm_dbg_state(state->dev,
+		"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n",
+		acrtc->crtc_id,
+		new_crtc_state->enable,
+		new_crtc_state->active,
+		new_crtc_state->planes_changed,
+		new_crtc_state->mode_changed,
+		new_crtc_state->active_changed,
+		new_crtc_state->connectors_changed);
+
+	/* Remove stream for any changed/disabled CRTC */
+	if (!enable) {
+
+		if (!dm_old_crtc_state->stream)
+			goto skip_modeset;
+
+		/* Unset freesync video if it was active before */
+		if (dm_old_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED) {
+			dm_new_crtc_state->freesync_config.state = VRR_STATE_INACTIVE;
+			dm_new_crtc_state->freesync_config.fixed_refresh_in_uhz = 0;
+		}
+
+		/* Now check if we should set freesync video mode */
+		if (dm_new_crtc_state->stream &&
+		    dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
+		    dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream) &&
+		    is_timing_unchanged_for_freesync(new_crtc_state,
+						     old_crtc_state)) {
+			new_crtc_state->mode_changed = false;
+			DRM_DEBUG_DRIVER(
+				"Mode change not required for front porch change, setting mode_changed to %d",
+				new_crtc_state->mode_changed);
+
+			set_freesync_fixed_config(dm_new_crtc_state);
+
+			goto skip_modeset;
+		} else if (aconnector &&
+			   is_freesync_video_mode(&new_crtc_state->mode,
+						  aconnector)) {
+			struct drm_display_mode *high_mode;
+
+			high_mode = get_highest_refresh_rate_mode(aconnector, false);
+			if (!drm_mode_equal(&new_crtc_state->mode, high_mode))
+				set_freesync_fixed_config(dm_new_crtc_state);
+		}
+
+		ret = dm_atomic_get_state(state, &dm_state);
+		if (ret)
+			goto fail;
+
+		DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n",
+				crtc->base.id);
+
+		/* i.e. reset mode */
+		if (dc_remove_stream_from_ctx(
+				dm->dc,
+				dm_state->context,
+				dm_old_crtc_state->stream) != DC_OK) {
+			ret = -EINVAL;
+			goto fail;
+		}
+
+		dc_stream_release(dm_old_crtc_state->stream);
+		dm_new_crtc_state->stream = NULL;
+
+		reset_freesync_config_for_crtc(dm_new_crtc_state);
+
+		*lock_and_validation_needed = true;
+
+	} else {/* Add stream for any updated/enabled CRTC */
+		/*
+		 * Quick fix to prevent NULL pointer on new_stream when
+		 * added MST connectors not found in existing crtc_state in the chained mode
+		 * TODO: need to dig out the root cause of that
+		 */
+		if (!aconnector)
+			goto skip_modeset;
+
+		if (modereset_required(new_crtc_state))
+			goto skip_modeset;
+
+		if (amdgpu_dm_crtc_modeset_required(new_crtc_state, new_stream,
+				     dm_old_crtc_state->stream)) {
+
+			WARN_ON(dm_new_crtc_state->stream);
+
+			ret = dm_atomic_get_state(state, &dm_state);
+			if (ret)
+				goto fail;
+
+			dm_new_crtc_state->stream = new_stream;
+
+			dc_stream_retain(new_stream);
+
+			DRM_DEBUG_ATOMIC("Enabling DRM crtc: %d\n",
+					 crtc->base.id);
+
+			if (dc_add_stream_to_ctx(
+					dm->dc,
+					dm_state->context,
+					dm_new_crtc_state->stream) != DC_OK) {
+				ret = -EINVAL;
+				goto fail;
+			}
+
+			*lock_and_validation_needed = true;
+		}
+	}
+
+skip_modeset:
+	/* Release extra reference */
+	if (new_stream)
+		dc_stream_release(new_stream);
+
+	/*
+	 * We want to do dc stream updates that do not require a
+	 * full modeset below.
+	 */
+	if (!(enable && aconnector && new_crtc_state->active))
+		return 0;
+	/*
+	 * Given above conditions, the dc state cannot be NULL because:
+	 * 1. We're in the process of enabling CRTCs (just been added
+	 *    to the dc context, or already is on the context)
+	 * 2. Has a valid connector attached, and
+	 * 3. Is currently active and enabled.
+	 * => The dc stream state currently exists.
+	 */
+	BUG_ON(dm_new_crtc_state->stream == NULL);
+
+	/* Scaling or underscan settings */
+	if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state) ||
+				drm_atomic_crtc_needs_modeset(new_crtc_state))
+		update_stream_scaling_settings(
+			&new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);
+
+	/* ABM settings */
+	dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
+
+	/*
+	 * Color management settings. We also update color properties
+	 * when a modeset is needed, to ensure it gets reprogrammed.
+	 */
+	if (dm_new_crtc_state->base.color_mgmt_changed ||
+	    drm_atomic_crtc_needs_modeset(new_crtc_state)) {
+		ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state);
+		if (ret)
+			goto fail;
+	}
+
+	/* Update Freesync settings. */
+	get_freesync_config_for_crtc(dm_new_crtc_state,
+				     dm_new_conn_state);
+
+	return ret;
+
+fail:
+	if (new_stream)
+		dc_stream_release(new_stream);
+	return ret;
+}
+
+static bool should_reset_plane(struct drm_atomic_state *state,
+			       struct drm_plane *plane,
+			       struct drm_plane_state *old_plane_state,
+			       struct drm_plane_state *new_plane_state)
+{
+	struct drm_plane *other;
+	struct drm_plane_state *old_other_state, *new_other_state;
+	struct drm_crtc_state *new_crtc_state;
+	struct amdgpu_device *adev = drm_to_adev(plane->dev);
+	int i;
+
+	/*
+	 * TODO: Remove this hack for all asics once it proves that the
+	 * fast updates works fine on DCN3.2+.
+	 */
+	if (adev->ip_versions[DCE_HWIP][0] < IP_VERSION(3, 2, 0) && state->allow_modeset)
+		return true;
+
+	/* Exit early if we know that we're adding or removing the plane. */
+	if (old_plane_state->crtc != new_plane_state->crtc)
+		return true;
+
+	/* old crtc == new_crtc == NULL, plane not in context. */
+	if (!new_plane_state->crtc)
+		return false;
+
+	new_crtc_state =
+		drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
+
+	if (!new_crtc_state)
+		return true;
+
+	/* CRTC Degamma changes currently require us to recreate planes. */
+	if (new_crtc_state->color_mgmt_changed)
+		return true;
+
+	if (drm_atomic_crtc_needs_modeset(new_crtc_state))
+		return true;
+
+	/*
+	 * If there are any new primary or overlay planes being added or
+	 * removed then the z-order can potentially change. To ensure
+	 * correct z-order and pipe acquisition the current DC architecture
+	 * requires us to remove and recreate all existing planes.
+	 *
+	 * TODO: Come up with a more elegant solution for this.
+	 */
+	for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) {
+		struct amdgpu_framebuffer *old_afb, *new_afb;
+
+		if (other->type == DRM_PLANE_TYPE_CURSOR)
+			continue;
+
+		if (old_other_state->crtc != new_plane_state->crtc &&
+		    new_other_state->crtc != new_plane_state->crtc)
+			continue;
+
+		if (old_other_state->crtc != new_other_state->crtc)
+			return true;
+
+		/* Src/dst size and scaling updates. */
+		if (old_other_state->src_w != new_other_state->src_w ||
+		    old_other_state->src_h != new_other_state->src_h ||
+		    old_other_state->crtc_w != new_other_state->crtc_w ||
+		    old_other_state->crtc_h != new_other_state->crtc_h)
+			return true;
+
+		/* Rotation / mirroring updates. */
+		if (old_other_state->rotation != new_other_state->rotation)
+			return true;
+
+		/* Blending updates. */
+		if (old_other_state->pixel_blend_mode !=
+		    new_other_state->pixel_blend_mode)
+			return true;
+
+		/* Alpha updates. */
+		if (old_other_state->alpha != new_other_state->alpha)
+			return true;
+
+		/* Colorspace changes. */
+		if (old_other_state->color_range != new_other_state->color_range ||
+		    old_other_state->color_encoding != new_other_state->color_encoding)
+			return true;
+
+		/* Framebuffer checks fall at the end. */
+		if (!old_other_state->fb || !new_other_state->fb)
+			continue;
+
+		/* Pixel format changes can require bandwidth updates. */
+		if (old_other_state->fb->format != new_other_state->fb->format)
+			return true;
+
+		old_afb = (struct amdgpu_framebuffer *)old_other_state->fb;
+		new_afb = (struct amdgpu_framebuffer *)new_other_state->fb;
+
+		/* Tiling and DCC changes also require bandwidth updates. */
+		if (old_afb->tiling_flags != new_afb->tiling_flags ||
+		    old_afb->base.modifier != new_afb->base.modifier)
+			return true;
+	}
+
+	return false;
+}
+
+static int dm_check_cursor_fb(struct amdgpu_crtc *new_acrtc,
+			      struct drm_plane_state *new_plane_state,
+			      struct drm_framebuffer *fb)
+{
+	struct amdgpu_device *adev = drm_to_adev(new_acrtc->base.dev);
+	struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb);
+	unsigned int pitch;
+	bool linear;
+
+	if (fb->width > new_acrtc->max_cursor_width ||
+	    fb->height > new_acrtc->max_cursor_height) {
+		DRM_DEBUG_ATOMIC("Bad cursor FB size %dx%d\n",
+				 new_plane_state->fb->width,
+				 new_plane_state->fb->height);
+		return -EINVAL;
+	}
+	if (new_plane_state->src_w != fb->width << 16 ||
+	    new_plane_state->src_h != fb->height << 16) {
+		DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
+		return -EINVAL;
+	}
+
+	/* Pitch in pixels */
+	pitch = fb->pitches[0] / fb->format->cpp[0];
+
+	if (fb->width != pitch) {
+		DRM_DEBUG_ATOMIC("Cursor FB width %d doesn't match pitch %d",
+				 fb->width, pitch);
+		return -EINVAL;
+	}
+
+	switch (pitch) {
+	case 64:
+	case 128:
+	case 256:
+		/* FB pitch is supported by cursor plane */
+		break;
+	default:
+		DRM_DEBUG_ATOMIC("Bad cursor FB pitch %d px\n", pitch);
+		return -EINVAL;
+	}
+
+	/* Core DRM takes care of checking FB modifiers, so we only need to
+	 * check tiling flags when the FB doesn't have a modifier.
+	 */
+	if (!(fb->flags & DRM_MODE_FB_MODIFIERS)) {
+		if (adev->family < AMDGPU_FAMILY_AI) {
+			linear = AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_2D_TILED_THIN1 &&
+				 AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_1D_TILED_THIN1 &&
+				 AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE) == 0;
+		} else {
+			linear = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0;
+		}
+		if (!linear) {
+			DRM_DEBUG_ATOMIC("Cursor FB not linear");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int dm_update_plane_state(struct dc *dc,
+				 struct drm_atomic_state *state,
+				 struct drm_plane *plane,
+				 struct drm_plane_state *old_plane_state,
+				 struct drm_plane_state *new_plane_state,
+				 bool enable,
+				 bool *lock_and_validation_needed,
+				 bool *is_top_most_overlay)
+{
+
+	struct dm_atomic_state *dm_state = NULL;
+	struct drm_crtc *new_plane_crtc, *old_plane_crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
+	struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
+	struct amdgpu_crtc *new_acrtc;
+	bool needs_reset;
+	int ret = 0;
+
+
+	new_plane_crtc = new_plane_state->crtc;
+	old_plane_crtc = old_plane_state->crtc;
+	dm_new_plane_state = to_dm_plane_state(new_plane_state);
+	dm_old_plane_state = to_dm_plane_state(old_plane_state);
+
+	if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+		if (!enable || !new_plane_crtc ||
+			drm_atomic_plane_disabling(plane->state, new_plane_state))
+			return 0;
+
+		new_acrtc = to_amdgpu_crtc(new_plane_crtc);
+
+		if (new_plane_state->src_x != 0 || new_plane_state->src_y != 0) {
+			DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
+			return -EINVAL;
+		}
+
+		if (new_plane_state->fb) {
+			ret = dm_check_cursor_fb(new_acrtc, new_plane_state,
+						 new_plane_state->fb);
+			if (ret)
+				return ret;
+		}
+
+		return 0;
+	}
+
+	needs_reset = should_reset_plane(state, plane, old_plane_state,
+					 new_plane_state);
+
+	/* Remove any changed/removed planes */
+	if (!enable) {
+		if (!needs_reset)
+			return 0;
+
+		if (!old_plane_crtc)
+			return 0;
+
+		old_crtc_state = drm_atomic_get_old_crtc_state(
+				state, old_plane_crtc);
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		if (!dm_old_crtc_state->stream)
+			return 0;
+
+		DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n",
+				plane->base.id, old_plane_crtc->base.id);
+
+		ret = dm_atomic_get_state(state, &dm_state);
+		if (ret)
+			return ret;
+
+		if (!dc_remove_plane_from_context(
+				dc,
+				dm_old_crtc_state->stream,
+				dm_old_plane_state->dc_state,
+				dm_state->context)) {
+
+			return -EINVAL;
+		}
+
+		if (dm_old_plane_state->dc_state)
+			dc_plane_state_release(dm_old_plane_state->dc_state);
+
+		dm_new_plane_state->dc_state = NULL;
+
+		*lock_and_validation_needed = true;
+
+	} else { /* Add new planes */
+		struct dc_plane_state *dc_new_plane_state;
+
+		if (drm_atomic_plane_disabling(plane->state, new_plane_state))
+			return 0;
+
+		if (!new_plane_crtc)
+			return 0;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc);
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+		if (!dm_new_crtc_state->stream)
+			return 0;
+
+		if (!needs_reset)
+			return 0;
+
+		ret = amdgpu_dm_plane_helper_check_state(new_plane_state, new_crtc_state);
+		if (ret)
+			return ret;
+
+		WARN_ON(dm_new_plane_state->dc_state);
+
+		dc_new_plane_state = dc_create_plane_state(dc);
+		if (!dc_new_plane_state)
+			return -ENOMEM;
+
+		/* Block top most plane from being a video plane */
+		if (plane->type == DRM_PLANE_TYPE_OVERLAY) {
+			if (is_video_format(new_plane_state->fb->format->format) && *is_top_most_overlay)
+				return -EINVAL;
+
+			*is_top_most_overlay = false;
+		}
+
+		DRM_DEBUG_ATOMIC("Enabling DRM plane: %d on DRM crtc %d\n",
+				 plane->base.id, new_plane_crtc->base.id);
+
+		ret = fill_dc_plane_attributes(
+			drm_to_adev(new_plane_crtc->dev),
+			dc_new_plane_state,
+			new_plane_state,
+			new_crtc_state);
+		if (ret) {
+			dc_plane_state_release(dc_new_plane_state);
+			return ret;
+		}
+
+		ret = dm_atomic_get_state(state, &dm_state);
+		if (ret) {
+			dc_plane_state_release(dc_new_plane_state);
+			return ret;
+		}
+
+		/*
+		 * Any atomic check errors that occur after this will
+		 * not need a release. The plane state will be attached
+		 * to the stream, and therefore part of the atomic
+		 * state. It'll be released when the atomic state is
+		 * cleaned.
+		 */
+		if (!dc_add_plane_to_context(
+				dc,
+				dm_new_crtc_state->stream,
+				dc_new_plane_state,
+				dm_state->context)) {
+
+			dc_plane_state_release(dc_new_plane_state);
+			return -EINVAL;
+		}
+
+		dm_new_plane_state->dc_state = dc_new_plane_state;
+
+		dm_new_crtc_state->mpo_requested |= (plane->type == DRM_PLANE_TYPE_OVERLAY);
+
+		/* Tell DC to do a full surface update every time there
+		 * is a plane change. Inefficient, but works for now.
+		 */
+		dm_new_plane_state->dc_state->update_flags.bits.full_update = 1;
+
+		*lock_and_validation_needed = true;
+	}
+
+
+	return ret;
+}
+
+static void dm_get_oriented_plane_size(struct drm_plane_state *plane_state,
+				       int *src_w, int *src_h)
+{
+	switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) {
+	case DRM_MODE_ROTATE_90:
+	case DRM_MODE_ROTATE_270:
+		*src_w = plane_state->src_h >> 16;
+		*src_h = plane_state->src_w >> 16;
+		break;
+	case DRM_MODE_ROTATE_0:
+	case DRM_MODE_ROTATE_180:
+	default:
+		*src_w = plane_state->src_w >> 16;
+		*src_h = plane_state->src_h >> 16;
+		break;
+	}
+}
+
+static void
+dm_get_plane_scale(struct drm_plane_state *plane_state,
+		   int *out_plane_scale_w, int *out_plane_scale_h)
+{
+	int plane_src_w, plane_src_h;
+
+	dm_get_oriented_plane_size(plane_state, &plane_src_w, &plane_src_h);
+	*out_plane_scale_w = plane_state->crtc_w * 1000 / plane_src_w;
+	*out_plane_scale_h = plane_state->crtc_h * 1000 / plane_src_h;
+}
+
+static int dm_check_crtc_cursor(struct drm_atomic_state *state,
+				struct drm_crtc *crtc,
+				struct drm_crtc_state *new_crtc_state)
+{
+	struct drm_plane *cursor = crtc->cursor, *plane, *underlying;
+	struct drm_plane_state *old_plane_state, *new_plane_state;
+	struct drm_plane_state *new_cursor_state, *new_underlying_state;
+	int i;
+	int cursor_scale_w, cursor_scale_h, underlying_scale_w, underlying_scale_h;
+	bool any_relevant_change = false;
+
+	/* On DCE and DCN there is no dedicated hardware cursor plane. We get a
+	 * cursor per pipe but it's going to inherit the scaling and
+	 * positioning from the underlying pipe. Check the cursor plane's
+	 * blending properties match the underlying planes'.
+	 */
+
+	/* If no plane was enabled or changed scaling, no need to check again */
+	for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+		int new_scale_w, new_scale_h, old_scale_w, old_scale_h;
+
+		if (!new_plane_state || !new_plane_state->fb || new_plane_state->crtc != crtc)
+			continue;
+
+		if (!old_plane_state || !old_plane_state->fb || old_plane_state->crtc != crtc) {
+			any_relevant_change = true;
+			break;
+		}
+
+		if (new_plane_state->fb == old_plane_state->fb &&
+		    new_plane_state->crtc_w == old_plane_state->crtc_w &&
+		    new_plane_state->crtc_h == old_plane_state->crtc_h)
+			continue;
+
+		dm_get_plane_scale(new_plane_state, &new_scale_w, &new_scale_h);
+		dm_get_plane_scale(old_plane_state, &old_scale_w, &old_scale_h);
+
+		if (new_scale_w != old_scale_w || new_scale_h != old_scale_h) {
+			any_relevant_change = true;
+			break;
+		}
+	}
+
+	if (!any_relevant_change)
+		return 0;
+
+	new_cursor_state = drm_atomic_get_plane_state(state, cursor);
+	if (IS_ERR(new_cursor_state))
+		return PTR_ERR(new_cursor_state);
+
+	if (!new_cursor_state->fb)
+		return 0;
+
+	dm_get_plane_scale(new_cursor_state, &cursor_scale_w, &cursor_scale_h);
+
+	/* Need to check all enabled planes, even if this commit doesn't change
+	 * their state
+	 */
+	i = drm_atomic_add_affected_planes(state, crtc);
+	if (i)
+		return i;
+
+	for_each_new_plane_in_state_reverse(state, underlying, new_underlying_state, i) {
+		/* Narrow down to non-cursor planes on the same CRTC as the cursor */
+		if (new_underlying_state->crtc != crtc || underlying == crtc->cursor)
+			continue;
+
+		/* Ignore disabled planes */
+		if (!new_underlying_state->fb)
+			continue;
+
+		dm_get_plane_scale(new_underlying_state,
+				   &underlying_scale_w, &underlying_scale_h);
+
+		if (cursor_scale_w != underlying_scale_w ||
+		    cursor_scale_h != underlying_scale_h) {
+			drm_dbg_atomic(crtc->dev,
+				       "Cursor [PLANE:%d:%s] scaling doesn't match underlying [PLANE:%d:%s]\n",
+				       cursor->base.id, cursor->name, underlying->base.id, underlying->name);
+			return -EINVAL;
+		}
+
+		/* If this plane covers the whole CRTC, no need to check planes underneath */
+		if (new_underlying_state->crtc_x <= 0 &&
+		    new_underlying_state->crtc_y <= 0 &&
+		    new_underlying_state->crtc_x + new_underlying_state->crtc_w >= new_crtc_state->mode.hdisplay &&
+		    new_underlying_state->crtc_y + new_underlying_state->crtc_h >= new_crtc_state->mode.vdisplay)
+			break;
+	}
+
+	return 0;
+}
+
+static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
+{
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state, *old_conn_state;
+	struct amdgpu_dm_connector *aconnector = NULL;
+	int i;
+
+	for_each_oldnew_connector_in_state(state, connector, old_conn_state, conn_state, i) {
+		if (!conn_state->crtc)
+			conn_state = old_conn_state;
+
+		if (conn_state->crtc != crtc)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+		if (!aconnector->mst_output_port || !aconnector->mst_root)
+			aconnector = NULL;
+		else
+			break;
+	}
+
+	if (!aconnector)
+		return 0;
+
+	return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_root->mst_mgr);
+}
+
+/**
+ * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
+ *
+ * @dev: The DRM device
+ * @state: The atomic state to commit
+ *
+ * Validate that the given atomic state is programmable by DC into hardware.
+ * This involves constructing a &struct dc_state reflecting the new hardware
+ * state we wish to commit, then querying DC to see if it is programmable. It's
+ * important not to modify the existing DC state. Otherwise, atomic_check
+ * may unexpectedly commit hardware changes.
+ *
+ * When validating the DC state, it's important that the right locks are
+ * acquired. For full updates case which removes/adds/updates streams on one
+ * CRTC while flipping on another CRTC, acquiring global lock will guarantee
+ * that any such full update commit will wait for completion of any outstanding
+ * flip using DRMs synchronization events.
+ *
+ * Note that DM adds the affected connectors for all CRTCs in state, when that
+ * might not seem necessary. This is because DC stream creation requires the
+ * DC sink, which is tied to the DRM connector state. Cleaning this up should
+ * be possible but non-trivial - a possible TODO item.
+ *
+ * Return: -Error code if validation failed.
+ */
+static int amdgpu_dm_atomic_check(struct drm_device *dev,
+				  struct drm_atomic_state *state)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dm_atomic_state *dm_state = NULL;
+	struct dc *dc = adev->dm.dc;
+	struct drm_connector *connector;
+	struct drm_connector_state *old_con_state, *new_con_state;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	struct drm_plane *plane;
+	struct drm_plane_state *old_plane_state, *new_plane_state;
+	enum dc_status status;
+	int ret, i;
+	bool lock_and_validation_needed = false;
+	bool is_top_most_overlay = true;
+	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+	struct drm_dp_mst_topology_mgr *mgr;
+	struct drm_dp_mst_topology_state *mst_state;
+	struct dsc_mst_fairness_vars vars[MAX_PIPES];
+
+	trace_amdgpu_dm_atomic_check_begin(state);
+
+	ret = drm_atomic_helper_check_modeset(dev, state);
+	if (ret) {
+		DRM_DEBUG_DRIVER("drm_atomic_helper_check_modeset() failed\n");
+		goto fail;
+	}
+
+	/* Check connector changes */
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
+		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+
+		/* Skip connectors that are disabled or part of modeset already. */
+		if (!new_con_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_crtc_state(state, new_con_state->crtc);
+		if (IS_ERR(new_crtc_state)) {
+			DRM_DEBUG_DRIVER("drm_atomic_get_crtc_state() failed\n");
+			ret = PTR_ERR(new_crtc_state);
+			goto fail;
+		}
+
+		if (dm_old_con_state->abm_level != dm_new_con_state->abm_level ||
+		    dm_old_con_state->scaling != dm_new_con_state->scaling)
+			new_crtc_state->connectors_changed = true;
+	}
+
+	if (dc_resource_is_dsc_encoding_supported(dc)) {
+		for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+			if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
+				ret = add_affected_mst_dsc_crtcs(state, crtc);
+				if (ret) {
+					DRM_DEBUG_DRIVER("add_affected_mst_dsc_crtcs() failed\n");
+					goto fail;
+				}
+			}
+		}
+	}
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+		if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
+		    !new_crtc_state->color_mgmt_changed &&
+		    old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled &&
+			dm_old_crtc_state->dsc_force_changed == false)
+			continue;
+
+		ret = amdgpu_dm_verify_lut_sizes(new_crtc_state);
+		if (ret) {
+			DRM_DEBUG_DRIVER("amdgpu_dm_verify_lut_sizes() failed\n");
+			goto fail;
+		}
+
+		if (!new_crtc_state->enable)
+			continue;
+
+		ret = drm_atomic_add_affected_connectors(state, crtc);
+		if (ret) {
+			DRM_DEBUG_DRIVER("drm_atomic_add_affected_connectors() failed\n");
+			goto fail;
+		}
+
+		ret = drm_atomic_add_affected_planes(state, crtc);
+		if (ret) {
+			DRM_DEBUG_DRIVER("drm_atomic_add_affected_planes() failed\n");
+			goto fail;
+		}
+
+		if (dm_old_crtc_state->dsc_force_changed)
+			new_crtc_state->mode_changed = true;
+	}
+
+	/*
+	 * Add all primary and overlay planes on the CRTC to the state
+	 * whenever a plane is enabled to maintain correct z-ordering
+	 * and to enable fast surface updates.
+	 */
+	drm_for_each_crtc(crtc, dev) {
+		bool modified = false;
+
+		for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+			if (plane->type == DRM_PLANE_TYPE_CURSOR)
+				continue;
+
+			if (new_plane_state->crtc == crtc ||
+			    old_plane_state->crtc == crtc) {
+				modified = true;
+				break;
+			}
+		}
+
+		if (!modified)
+			continue;
+
+		drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
+			if (plane->type == DRM_PLANE_TYPE_CURSOR)
+				continue;
+
+			new_plane_state =
+				drm_atomic_get_plane_state(state, plane);
+
+			if (IS_ERR(new_plane_state)) {
+				ret = PTR_ERR(new_plane_state);
+				DRM_DEBUG_DRIVER("new_plane_state is BAD\n");
+				goto fail;
+			}
+		}
+	}
+
+	/*
+	 * DC consults the zpos (layer_index in DC terminology) to determine the
+	 * hw plane on which to enable the hw cursor (see
+	 * `dcn10_can_pipe_disable_cursor`). By now, all modified planes are in
+	 * atomic state, so call drm helper to normalize zpos.
+	 */
+	ret = drm_atomic_normalize_zpos(dev, state);
+	if (ret) {
+		drm_dbg(dev, "drm_atomic_normalize_zpos() failed\n");
+		goto fail;
+	}
+
+	/* Remove exiting planes if they are modified */
+	for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
+		if (old_plane_state->fb && new_plane_state->fb &&
+		    get_mem_type(old_plane_state->fb) !=
+		    get_mem_type(new_plane_state->fb))
+			lock_and_validation_needed = true;
+
+		ret = dm_update_plane_state(dc, state, plane,
+					    old_plane_state,
+					    new_plane_state,
+					    false,
+					    &lock_and_validation_needed,
+					    &is_top_most_overlay);
+		if (ret) {
+			DRM_DEBUG_DRIVER("dm_update_plane_state() failed\n");
+			goto fail;
+		}
+	}
+
+	/* Disable all crtcs which require disable */
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		ret = dm_update_crtc_state(&adev->dm, state, crtc,
+					   old_crtc_state,
+					   new_crtc_state,
+					   false,
+					   &lock_and_validation_needed);
+		if (ret) {
+			DRM_DEBUG_DRIVER("DISABLE: dm_update_crtc_state() failed\n");
+			goto fail;
+		}
+	}
+
+	/* Enable all crtcs which require enable */
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		ret = dm_update_crtc_state(&adev->dm, state, crtc,
+					   old_crtc_state,
+					   new_crtc_state,
+					   true,
+					   &lock_and_validation_needed);
+		if (ret) {
+			DRM_DEBUG_DRIVER("ENABLE: dm_update_crtc_state() failed\n");
+			goto fail;
+		}
+	}
+
+	/* Add new/modified planes */
+	for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
+		ret = dm_update_plane_state(dc, state, plane,
+					    old_plane_state,
+					    new_plane_state,
+					    true,
+					    &lock_and_validation_needed,
+					    &is_top_most_overlay);
+		if (ret) {
+			DRM_DEBUG_DRIVER("dm_update_plane_state() failed\n");
+			goto fail;
+		}
+	}
+
+	if (dc_resource_is_dsc_encoding_supported(dc)) {
+		ret = pre_validate_dsc(state, &dm_state, vars);
+		if (ret != 0)
+			goto fail;
+	}
+
+	/* Run this here since we want to validate the streams we created */
+	ret = drm_atomic_helper_check_planes(dev, state);
+	if (ret) {
+		DRM_DEBUG_DRIVER("drm_atomic_helper_check_planes() failed\n");
+		goto fail;
+	}
+
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+		if (dm_new_crtc_state->mpo_requested)
+			DRM_DEBUG_DRIVER("MPO enablement requested on crtc:[%p]\n", crtc);
+	}
+
+	/* Check cursor planes scaling */
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		ret = dm_check_crtc_cursor(state, crtc, new_crtc_state);
+		if (ret) {
+			DRM_DEBUG_DRIVER("dm_check_crtc_cursor() failed\n");
+			goto fail;
+		}
+	}
+
+	if (state->legacy_cursor_update) {
+		/*
+		 * This is a fast cursor update coming from the plane update
+		 * helper, check if it can be done asynchronously for better
+		 * performance.
+		 */
+		state->async_update =
+			!drm_atomic_helper_async_check(dev, state);
+
+		/*
+		 * Skip the remaining global validation if this is an async
+		 * update. Cursor updates can be done without affecting
+		 * state or bandwidth calcs and this avoids the performance
+		 * penalty of locking the private state object and
+		 * allocating a new dc_state.
+		 */
+		if (state->async_update)
+			return 0;
+	}
+
+	/* Check scaling and underscan changes*/
+	/* TODO Removed scaling changes validation due to inability to commit
+	 * new stream into context w\o causing full reset. Need to
+	 * decide how to handle.
+	 */
+	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+		struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
+		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+
+		/* Skip any modesets/resets */
+		if (!acrtc || drm_atomic_crtc_needs_modeset(
+				drm_atomic_get_new_crtc_state(state, &acrtc->base)))
+			continue;
+
+		/* Skip any thing not scale or underscan changes */
+		if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
+			continue;
+
+		lock_and_validation_needed = true;
+	}
+
+	/* set the slot info for each mst_state based on the link encoding format */
+	for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
+		struct amdgpu_dm_connector *aconnector;
+		struct drm_connector *connector;
+		struct drm_connector_list_iter iter;
+		u8 link_coding_cap;
+
+		drm_connector_list_iter_begin(dev, &iter);
+		drm_for_each_connector_iter(connector, &iter) {
+			if (connector->index == mst_state->mgr->conn_base_id) {
+				aconnector = to_amdgpu_dm_connector(connector);
+				link_coding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
+				drm_dp_mst_update_slots(mst_state, link_coding_cap);
+
+				break;
+			}
+		}
+		drm_connector_list_iter_end(&iter);
+	}
+
+	/**
+	 * Streams and planes are reset when there are changes that affect
+	 * bandwidth. Anything that affects bandwidth needs to go through
+	 * DC global validation to ensure that the configuration can be applied
+	 * to hardware.
+	 *
+	 * We have to currently stall out here in atomic_check for outstanding
+	 * commits to finish in this case because our IRQ handlers reference
+	 * DRM state directly - we can end up disabling interrupts too early
+	 * if we don't.
+	 *
+	 * TODO: Remove this stall and drop DM state private objects.
+	 */
+	if (lock_and_validation_needed) {
+		ret = dm_atomic_get_state(state, &dm_state);
+		if (ret) {
+			DRM_DEBUG_DRIVER("dm_atomic_get_state() failed\n");
+			goto fail;
+		}
+
+		ret = do_aquire_global_lock(dev, state);
+		if (ret) {
+			DRM_DEBUG_DRIVER("do_aquire_global_lock() failed\n");
+			goto fail;
+		}
+
+		ret = compute_mst_dsc_configs_for_state(state, dm_state->context, vars);
+		if (ret) {
+			DRM_DEBUG_DRIVER("compute_mst_dsc_configs_for_state() failed\n");
+			ret = -EINVAL;
+			goto fail;
+		}
+
+		ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context, vars);
+		if (ret) {
+			DRM_DEBUG_DRIVER("dm_update_mst_vcpi_slots_for_dsc() failed\n");
+			goto fail;
+		}
+
+		/*
+		 * Perform validation of MST topology in the state:
+		 * We need to perform MST atomic check before calling
+		 * dc_validate_global_state(), or there is a chance
+		 * to get stuck in an infinite loop and hang eventually.
+		 */
+		ret = drm_dp_mst_atomic_check(state);
+		if (ret) {
+			DRM_DEBUG_DRIVER("drm_dp_mst_atomic_check() failed\n");
+			goto fail;
+		}
+		status = dc_validate_global_state(dc, dm_state->context, true);
+		if (status != DC_OK) {
+			DRM_DEBUG_DRIVER("DC global validation failure: %s (%d)",
+				       dc_status_to_str(status), status);
+			ret = -EINVAL;
+			goto fail;
+		}
+	} else {
+		/*
+		 * The commit is a fast update. Fast updates shouldn't change
+		 * the DC context, affect global validation, and can have their
+		 * commit work done in parallel with other commits not touching
+		 * the same resource. If we have a new DC context as part of
+		 * the DM atomic state from validation we need to free it and
+		 * retain the existing one instead.
+		 *
+		 * Furthermore, since the DM atomic state only contains the DC
+		 * context and can safely be annulled, we can free the state
+		 * and clear the associated private object now to free
+		 * some memory and avoid a possible use-after-free later.
+		 */
+
+		for (i = 0; i < state->num_private_objs; i++) {
+			struct drm_private_obj *obj = state->private_objs[i].ptr;
+
+			if (obj->funcs == adev->dm.atomic_obj.funcs) {
+				int j = state->num_private_objs-1;
+
+				dm_atomic_destroy_state(obj,
+						state->private_objs[i].state);
+
+				/* If i is not at the end of the array then the
+				 * last element needs to be moved to where i was
+				 * before the array can safely be truncated.
+				 */
+				if (i != j)
+					state->private_objs[i] =
+						state->private_objs[j];
+
+				state->private_objs[j].ptr = NULL;
+				state->private_objs[j].state = NULL;
+				state->private_objs[j].old_state = NULL;
+				state->private_objs[j].new_state = NULL;
+
+				state->num_private_objs = j;
+				break;
+			}
+		}
+	}
+
+	/* Store the overall update type for use later in atomic check. */
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		struct dm_crtc_state *dm_new_crtc_state =
+			to_dm_crtc_state(new_crtc_state);
+
+		/*
+		 * Only allow async flips for fast updates that don't change
+		 * the FB pitch, the DCC state, rotation, etc.
+		 */
+		if (new_crtc_state->async_flip && lock_and_validation_needed) {
+			drm_dbg_atomic(crtc->dev,
+				       "[CRTC:%d:%s] async flips are only supported for fast updates\n",
+				       crtc->base.id, crtc->name);
+			ret = -EINVAL;
+			goto fail;
+		}
+
+		dm_new_crtc_state->update_type = lock_and_validation_needed ?
+			UPDATE_TYPE_FULL : UPDATE_TYPE_FAST;
+	}
+
+	/* Must be success */
+	WARN_ON(ret);
+
+	trace_amdgpu_dm_atomic_check_finish(state, ret);
+
+	return ret;
+
+fail:
+	if (ret == -EDEADLK)
+		DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n");
+	else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
+		DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
+	else
+		DRM_DEBUG_DRIVER("Atomic check failed with err: %d\n", ret);
+
+	trace_amdgpu_dm_atomic_check_finish(state, ret);
+
+	return ret;
+}
+
+static bool is_dp_capable_without_timing_msa(struct dc *dc,
+					     struct amdgpu_dm_connector *amdgpu_dm_connector)
+{
+	u8 dpcd_data;
+	bool capable = false;
+
+	if (amdgpu_dm_connector->dc_link &&
+		dm_helpers_dp_read_dpcd(
+				NULL,
+				amdgpu_dm_connector->dc_link,
+				DP_DOWN_STREAM_PORT_COUNT,
+				&dpcd_data,
+				sizeof(dpcd_data))) {
+		capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false;
+	}
+
+	return capable;
+}
+
+static bool dm_edid_parser_send_cea(struct amdgpu_display_manager *dm,
+		unsigned int offset,
+		unsigned int total_length,
+		u8 *data,
+		unsigned int length,
+		struct amdgpu_hdmi_vsdb_info *vsdb)
+{
+	bool res;
+	union dmub_rb_cmd cmd;
+	struct dmub_cmd_send_edid_cea *input;
+	struct dmub_cmd_edid_cea_output *output;
+
+	if (length > DMUB_EDID_CEA_DATA_CHUNK_BYTES)
+		return false;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	input = &cmd.edid_cea.data.input;
+
+	cmd.edid_cea.header.type = DMUB_CMD__EDID_CEA;
+	cmd.edid_cea.header.sub_type = 0;
+	cmd.edid_cea.header.payload_bytes =
+		sizeof(cmd.edid_cea) - sizeof(cmd.edid_cea.header);
+	input->offset = offset;
+	input->length = length;
+	input->cea_total_length = total_length;
+	memcpy(input->payload, data, length);
+
+	res = dm_execute_dmub_cmd(dm->dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY);
+	if (!res) {
+		DRM_ERROR("EDID CEA parser failed\n");
+		return false;
+	}
+
+	output = &cmd.edid_cea.data.output;
+
+	if (output->type == DMUB_CMD__EDID_CEA_ACK) {
+		if (!output->ack.success) {
+			DRM_ERROR("EDID CEA ack failed at offset %d\n",
+					output->ack.offset);
+		}
+	} else if (output->type == DMUB_CMD__EDID_CEA_AMD_VSDB) {
+		if (!output->amd_vsdb.vsdb_found)
+			return false;
+
+		vsdb->freesync_supported = output->amd_vsdb.freesync_supported;
+		vsdb->amd_vsdb_version = output->amd_vsdb.amd_vsdb_version;
+		vsdb->min_refresh_rate_hz = output->amd_vsdb.min_frame_rate;
+		vsdb->max_refresh_rate_hz = output->amd_vsdb.max_frame_rate;
+	} else {
+		DRM_WARN("Unknown EDID CEA parser results\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool parse_edid_cea_dmcu(struct amdgpu_display_manager *dm,
+		u8 *edid_ext, int len,
+		struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+	int i;
+
+	/* send extension block to DMCU for parsing */
+	for (i = 0; i < len; i += 8) {
+		bool res;
+		int offset;
+
+		/* send 8 bytes a time */
+		if (!dc_edid_parser_send_cea(dm->dc, i, len, &edid_ext[i], 8))
+			return false;
+
+		if (i+8 == len) {
+			/* EDID block sent completed, expect result */
+			int version, min_rate, max_rate;
+
+			res = dc_edid_parser_recv_amd_vsdb(dm->dc, &version, &min_rate, &max_rate);
+			if (res) {
+				/* amd vsdb found */
+				vsdb_info->freesync_supported = 1;
+				vsdb_info->amd_vsdb_version = version;
+				vsdb_info->min_refresh_rate_hz = min_rate;
+				vsdb_info->max_refresh_rate_hz = max_rate;
+				return true;
+			}
+			/* not amd vsdb */
+			return false;
+		}
+
+		/* check for ack*/
+		res = dc_edid_parser_recv_cea_ack(dm->dc, &offset);
+		if (!res)
+			return false;
+	}
+
+	return false;
+}
+
+static bool parse_edid_cea_dmub(struct amdgpu_display_manager *dm,
+		u8 *edid_ext, int len,
+		struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+	int i;
+
+	/* send extension block to DMCU for parsing */
+	for (i = 0; i < len; i += 8) {
+		/* send 8 bytes a time */
+		if (!dm_edid_parser_send_cea(dm, i, len, &edid_ext[i], 8, vsdb_info))
+			return false;
+	}
+
+	return vsdb_info->freesync_supported;
+}
+
+static bool parse_edid_cea(struct amdgpu_dm_connector *aconnector,
+		u8 *edid_ext, int len,
+		struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+	struct amdgpu_device *adev = drm_to_adev(aconnector->base.dev);
+	bool ret;
+
+	mutex_lock(&adev->dm.dc_lock);
+	if (adev->dm.dmub_srv)
+		ret = parse_edid_cea_dmub(&adev->dm, edid_ext, len, vsdb_info);
+	else
+		ret = parse_edid_cea_dmcu(&adev->dm, edid_ext, len, vsdb_info);
+	mutex_unlock(&adev->dm.dc_lock);
+	return ret;
+}
+
+static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector,
+			  struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+	u8 *edid_ext = NULL;
+	int i;
+	int j = 0;
+
+	if (edid == NULL || edid->extensions == 0)
+		return -ENODEV;
+
+	/* Find DisplayID extension */
+	for (i = 0; i < edid->extensions; i++) {
+		edid_ext = (void *)(edid + (i + 1));
+		if (edid_ext[0] == DISPLAYID_EXT)
+			break;
+	}
+
+	while (j < EDID_LENGTH) {
+		struct amd_vsdb_block *amd_vsdb = (struct amd_vsdb_block *)&edid_ext[j];
+		unsigned int ieeeId = (amd_vsdb->ieee_id[2] << 16) | (amd_vsdb->ieee_id[1] << 8) | (amd_vsdb->ieee_id[0]);
+
+		if (ieeeId == HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_IEEE_REGISTRATION_ID &&
+				amd_vsdb->version == HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3) {
+			vsdb_info->replay_mode = (amd_vsdb->feature_caps & AMD_VSDB_VERSION_3_FEATURECAP_REPLAYMODE) ? true : false;
+			vsdb_info->amd_vsdb_version = HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3;
+			DRM_DEBUG_KMS("Panel supports Replay Mode: %d\n", vsdb_info->replay_mode);
+
+			return true;
+		}
+		j++;
+	}
+
+	return false;
+}
+
+static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
+		struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+	u8 *edid_ext = NULL;
+	int i;
+	bool valid_vsdb_found = false;
+
+	/*----- drm_find_cea_extension() -----*/
+	/* No EDID or EDID extensions */
+	if (edid == NULL || edid->extensions == 0)
+		return -ENODEV;
+
+	/* Find CEA extension */
+	for (i = 0; i < edid->extensions; i++) {
+		edid_ext = (uint8_t *)edid + EDID_LENGTH * (i + 1);
+		if (edid_ext[0] == CEA_EXT)
+			break;
+	}
+
+	if (i == edid->extensions)
+		return -ENODEV;
+
+	/*----- cea_db_offsets() -----*/
+	if (edid_ext[0] != CEA_EXT)
+		return -ENODEV;
+
+	valid_vsdb_found = parse_edid_cea(aconnector, edid_ext, EDID_LENGTH, vsdb_info);
+
+	return valid_vsdb_found ? i : -ENODEV;
+}
+
+/**
+ * amdgpu_dm_update_freesync_caps - Update Freesync capabilities
+ *
+ * @connector: Connector to query.
+ * @edid: EDID from monitor
+ *
+ * Amdgpu supports Freesync in DP and HDMI displays, and it is required to keep
+ * track of some of the display information in the internal data struct used by
+ * amdgpu_dm. This function checks which type of connector we need to set the
+ * FreeSync parameters.
+ */
+void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
+				    struct edid *edid)
+{
+	int i = 0;
+	struct detailed_timing *timing;
+	struct detailed_non_pixel *data;
+	struct detailed_data_monitor_range *range;
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+			to_amdgpu_dm_connector(connector);
+	struct dm_connector_state *dm_con_state = NULL;
+	struct dc_sink *sink;
+
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_hdmi_vsdb_info vsdb_info = {0};
+	bool freesync_capable = false;
+	enum adaptive_sync_type as_type = ADAPTIVE_SYNC_TYPE_NONE;
+
+	if (!connector->state) {
+		DRM_ERROR("%s - Connector has no state", __func__);
+		goto update;
+	}
+
+	sink = amdgpu_dm_connector->dc_sink ?
+		amdgpu_dm_connector->dc_sink :
+		amdgpu_dm_connector->dc_em_sink;
+
+	if (!edid || !sink) {
+		dm_con_state = to_dm_connector_state(connector->state);
+
+		amdgpu_dm_connector->min_vfreq = 0;
+		amdgpu_dm_connector->max_vfreq = 0;
+		amdgpu_dm_connector->pixel_clock_mhz = 0;
+		connector->display_info.monitor_range.min_vfreq = 0;
+		connector->display_info.monitor_range.max_vfreq = 0;
+		freesync_capable = false;
+
+		goto update;
+	}
+
+	dm_con_state = to_dm_connector_state(connector->state);
+
+	if (!adev->dm.freesync_module)
+		goto update;
+
+	if (sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT
+		|| sink->sink_signal == SIGNAL_TYPE_EDP) {
+		bool edid_check_required = false;
+
+		if (edid) {
+			edid_check_required = is_dp_capable_without_timing_msa(
+						adev->dm.dc,
+						amdgpu_dm_connector);
+		}
+
+		if (edid_check_required == true && (edid->version > 1 ||
+		   (edid->version == 1 && edid->revision > 1))) {
+			for (i = 0; i < 4; i++) {
+
+				timing	= &edid->detailed_timings[i];
+				data	= &timing->data.other_data;
+				range	= &data->data.range;
+				/*
+				 * Check if monitor has continuous frequency mode
+				 */
+				if (data->type != EDID_DETAIL_MONITOR_RANGE)
+					continue;
+				/*
+				 * Check for flag range limits only. If flag == 1 then
+				 * no additional timing information provided.
+				 * Default GTF, GTF Secondary curve and CVT are not
+				 * supported
+				 */
+				if (range->flags != 1)
+					continue;
+
+				amdgpu_dm_connector->min_vfreq = range->min_vfreq;
+				amdgpu_dm_connector->max_vfreq = range->max_vfreq;
+				amdgpu_dm_connector->pixel_clock_mhz =
+					range->pixel_clock_mhz * 10;
+
+				connector->display_info.monitor_range.min_vfreq = range->min_vfreq;
+				connector->display_info.monitor_range.max_vfreq = range->max_vfreq;
+
+				break;
+			}
+
+			if (amdgpu_dm_connector->max_vfreq -
+			    amdgpu_dm_connector->min_vfreq > 10) {
+
+				freesync_capable = true;
+			}
+		}
+		parse_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
+
+		if (vsdb_info.replay_mode) {
+			amdgpu_dm_connector->vsdb_info.replay_mode = vsdb_info.replay_mode;
+			amdgpu_dm_connector->vsdb_info.amd_vsdb_version = vsdb_info.amd_vsdb_version;
+			amdgpu_dm_connector->as_type = ADAPTIVE_SYNC_TYPE_EDP;
+		}
+
+	} else if (edid && sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) {
+		i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
+		if (i >= 0 && vsdb_info.freesync_supported) {
+			timing  = &edid->detailed_timings[i];
+			data    = &timing->data.other_data;
+
+			amdgpu_dm_connector->min_vfreq = vsdb_info.min_refresh_rate_hz;
+			amdgpu_dm_connector->max_vfreq = vsdb_info.max_refresh_rate_hz;
+			if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
+				freesync_capable = true;
+
+			connector->display_info.monitor_range.min_vfreq = vsdb_info.min_refresh_rate_hz;
+			connector->display_info.monitor_range.max_vfreq = vsdb_info.max_refresh_rate_hz;
+		}
+	}
+
+	as_type = dm_get_adaptive_sync_support_type(amdgpu_dm_connector->dc_link);
+
+	if (as_type == FREESYNC_TYPE_PCON_IN_WHITELIST) {
+		i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
+		if (i >= 0 && vsdb_info.freesync_supported && vsdb_info.amd_vsdb_version > 0) {
+
+			amdgpu_dm_connector->pack_sdp_v1_3 = true;
+			amdgpu_dm_connector->as_type = as_type;
+			amdgpu_dm_connector->vsdb_info = vsdb_info;
+
+			amdgpu_dm_connector->min_vfreq = vsdb_info.min_refresh_rate_hz;
+			amdgpu_dm_connector->max_vfreq = vsdb_info.max_refresh_rate_hz;
+			if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
+				freesync_capable = true;
+
+			connector->display_info.monitor_range.min_vfreq = vsdb_info.min_refresh_rate_hz;
+			connector->display_info.monitor_range.max_vfreq = vsdb_info.max_refresh_rate_hz;
+		}
+	}
+
+update:
+	if (dm_con_state)
+		dm_con_state->freesync_capable = freesync_capable;
+
+	if (connector->vrr_capable_property)
+		drm_connector_set_vrr_capable_property(connector,
+						       freesync_capable);
+}
+
+void amdgpu_dm_trigger_timing_sync(struct drm_device *dev)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dc *dc = adev->dm.dc;
+	int i;
+
+	mutex_lock(&adev->dm.dc_lock);
+	if (dc->current_state) {
+		for (i = 0; i < dc->current_state->stream_count; ++i)
+			dc->current_state->streams[i]
+				->triggered_crtc_reset.enabled =
+				adev->dm.force_timing_sync;
+
+		dm_enable_per_frame_crtc_master_sync(dc->current_state);
+		dc_trigger_sync(dc, dc->current_state);
+	}
+	mutex_unlock(&adev->dm.dc_lock);
+}
+
+void dm_write_reg_func(const struct dc_context *ctx, uint32_t address,
+		       u32 value, const char *func_name)
+{
+#ifdef DM_CHECK_ADDR_0
+	if (address == 0) {
+		DC_ERR("invalid register write. address = 0");
+		return;
+	}
+#endif
+	cgs_write_register(ctx->cgs_device, address, value);
+	trace_amdgpu_dc_wreg(&ctx->perf_trace->write_count, address, value);
+}
+
+uint32_t dm_read_reg_func(const struct dc_context *ctx, uint32_t address,
+			  const char *func_name)
+{
+	u32 value;
+#ifdef DM_CHECK_ADDR_0
+	if (address == 0) {
+		DC_ERR("invalid register read; address = 0\n");
+		return 0;
+	}
+#endif
+
+	if (ctx->dmub_srv &&
+	    ctx->dmub_srv->reg_helper_offload.gather_in_progress &&
+	    !ctx->dmub_srv->reg_helper_offload.should_burst_write) {
+		ASSERT(false);
+		return 0;
+	}
+
+	value = cgs_read_register(ctx->cgs_device, address);
+
+	trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value);
+
+	return value;
+}
+
+int amdgpu_dm_process_dmub_aux_transfer_sync(
+		struct dc_context *ctx,
+		unsigned int link_index,
+		struct aux_payload *payload,
+		enum aux_return_code_type *operation_result)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct dmub_notification *p_notify = adev->dm.dmub_notify;
+	int ret = -1;
+
+	mutex_lock(&adev->dm.dpia_aux_lock);
+	if (!dc_process_dmub_aux_transfer_async(ctx->dc, link_index, payload)) {
+		*operation_result = AUX_RET_ERROR_ENGINE_ACQUIRE;
+		goto out;
+	}
+
+	if (!wait_for_completion_timeout(&adev->dm.dmub_aux_transfer_done, 10 * HZ)) {
+		DRM_ERROR("wait_for_completion_timeout timeout!");
+		*operation_result = AUX_RET_ERROR_TIMEOUT;
+		goto out;
+	}
+
+	if (p_notify->result != AUX_RET_SUCCESS) {
+		/*
+		 * Transient states before tunneling is enabled could
+		 * lead to this error. We can ignore this for now.
+		 */
+		if (p_notify->result != AUX_RET_ERROR_PROTOCOL_ERROR) {
+			DRM_WARN("DPIA AUX failed on 0x%x(%d), error %d\n",
+					payload->address, payload->length,
+					p_notify->result);
+		}
+		*operation_result = AUX_RET_ERROR_INVALID_REPLY;
+		goto out;
+	}
+
+
+	payload->reply[0] = adev->dm.dmub_notify->aux_reply.command;
+	if (!payload->write && p_notify->aux_reply.length &&
+			(payload->reply[0] == AUX_TRANSACTION_REPLY_AUX_ACK)) {
+
+		if (payload->length != p_notify->aux_reply.length) {
+			DRM_WARN("invalid read length %d from DPIA AUX 0x%x(%d)!\n",
+				p_notify->aux_reply.length,
+					payload->address, payload->length);
+			*operation_result = AUX_RET_ERROR_INVALID_REPLY;
+			goto out;
+		}
+
+		memcpy(payload->data, p_notify->aux_reply.data,
+				p_notify->aux_reply.length);
+	}
+
+	/* success */
+	ret = p_notify->aux_reply.length;
+	*operation_result = p_notify->result;
+out:
+	reinit_completion(&adev->dm.dmub_aux_transfer_done);
+	mutex_unlock(&adev->dm.dpia_aux_lock);
+	return ret;
+}
+
+int amdgpu_dm_process_dmub_set_config_sync(
+		struct dc_context *ctx,
+		unsigned int link_index,
+		struct set_config_cmd_payload *payload,
+		enum set_config_status *operation_result)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	bool is_cmd_complete;
+	int ret;
+
+	mutex_lock(&adev->dm.dpia_aux_lock);
+	is_cmd_complete = dc_process_dmub_set_config_async(ctx->dc,
+			link_index, payload, adev->dm.dmub_notify);
+
+	if (is_cmd_complete || wait_for_completion_timeout(&adev->dm.dmub_aux_transfer_done, 10 * HZ)) {
+		ret = 0;
+		*operation_result = adev->dm.dmub_notify->sc_status;
+	} else {
+		DRM_ERROR("wait_for_completion_timeout timeout!");
+		ret = -1;
+		*operation_result = SET_CONFIG_UNKNOWN_ERROR;
+	}
+
+	if (!is_cmd_complete)
+		reinit_completion(&adev->dm.dmub_aux_transfer_done);
+	mutex_unlock(&adev->dm.dpia_aux_lock);
+	return ret;
+}
+
+/*
+ * Check whether seamless boot is supported.
+ *
+ * So far we only support seamless boot on CHIP_VANGOGH.
+ * If everything goes well, we may consider expanding
+ * seamless boot to other ASICs.
+ */
+bool check_seamless_boot_capability(struct amdgpu_device *adev)
+{
+	switch (adev->ip_versions[DCE_HWIP][0]) {
+	case IP_VERSION(3, 0, 1):
+		if (!adev->mman.keep_stolen_vga_memory)
+			return true;
+		break;
+	default:
+		break;
+	}
+
+	return false;
+}
+
+bool dm_execute_dmub_cmd(const struct dc_context *ctx, union dmub_rb_cmd *cmd, enum dm_dmub_wait_type wait_type)
+{
+	return dc_dmub_srv_cmd_run(ctx->dmub_srv, cmd, wait_type);
+}
+
+bool dm_execute_dmub_cmd_list(const struct dc_context *ctx, unsigned int count, union dmub_rb_cmd *cmd, enum dm_dmub_wait_type wait_type)
+{
+	return dc_dmub_srv_cmd_run_list(ctx->dmub_srv, count, cmd, wait_type);
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
new file mode 100644
index 000000000..9e4cc5eed
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -0,0 +1,844 @@
+/*
+ * Copyright (C) 2015-2020 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __AMDGPU_DM_H__
+#define __AMDGPU_DM_H__
+
+#include <drm/display/drm_dp_mst_helper.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_plane.h>
+#include "link_service_types.h"
+
+/*
+ * This file contains the definition for amdgpu_display_manager
+ * and its API for amdgpu driver's use.
+ * This component provides all the display related functionality
+ * and this is the only component that calls DAL API.
+ * The API contained here intended for amdgpu driver use.
+ * The API that is called directly from KMS framework is located
+ * in amdgpu_dm_kms.h file
+ */
+
+#define AMDGPU_DM_MAX_DISPLAY_INDEX 31
+
+#define AMDGPU_DM_MAX_CRTC 6
+
+#define AMDGPU_DM_MAX_NUM_EDP 2
+
+#define AMDGPU_DMUB_NOTIFICATION_MAX 5
+
+#define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_IEEE_REGISTRATION_ID 0x00001A
+#define AMD_VSDB_VERSION_3_FEATURECAP_REPLAYMODE 0x40
+#define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3 0x3
+/*
+#include "include/amdgpu_dal_power_if.h"
+#include "amdgpu_dm_irq.h"
+*/
+
+#include "irq_types.h"
+#include "signal_types.h"
+#include "amdgpu_dm_crc.h"
+#include "mod_info_packet.h"
+struct aux_payload;
+struct set_config_cmd_payload;
+enum aux_return_code_type;
+enum set_config_status;
+
+/* Forward declarations */
+struct amdgpu_device;
+struct amdgpu_crtc;
+struct drm_device;
+struct dc;
+struct amdgpu_bo;
+struct dmub_srv;
+struct dc_plane_state;
+struct dmub_notification;
+
+struct amd_vsdb_block {
+	unsigned char ieee_id[3];
+	unsigned char version;
+	unsigned char feature_caps;
+};
+
+struct common_irq_params {
+	struct amdgpu_device *adev;
+	enum dc_irq_source irq_src;
+	atomic64_t previous_timestamp;
+};
+
+/**
+ * struct dm_compressor_info - Buffer info used by frame buffer compression
+ * @cpu_addr: MMIO cpu addr
+ * @bo_ptr: Pointer to the buffer object
+ * @gpu_addr: MMIO gpu addr
+ */
+struct dm_compressor_info {
+	void *cpu_addr;
+	struct amdgpu_bo *bo_ptr;
+	uint64_t gpu_addr;
+};
+
+typedef void (*dmub_notify_interrupt_callback_t)(struct amdgpu_device *adev, struct dmub_notification *notify);
+
+/**
+ * struct dmub_hpd_work - Handle time consuming work in low priority outbox IRQ
+ *
+ * @handle_hpd_work: Work to be executed in a separate thread to handle hpd_low_irq
+ * @dmub_notify:  notification for callback function
+ * @adev: amdgpu_device pointer
+ */
+struct dmub_hpd_work {
+	struct work_struct handle_hpd_work;
+	struct dmub_notification *dmub_notify;
+	struct amdgpu_device *adev;
+};
+
+/**
+ * struct vblank_control_work - Work data for vblank control
+ * @work: Kernel work data for the work event
+ * @dm: amdgpu display manager device
+ * @acrtc: amdgpu CRTC instance for which the event has occurred
+ * @stream: DC stream for which the event has occurred
+ * @enable: true if enabling vblank
+ */
+struct vblank_control_work {
+	struct work_struct work;
+	struct amdgpu_display_manager *dm;
+	struct amdgpu_crtc *acrtc;
+	struct dc_stream_state *stream;
+	bool enable;
+};
+
+/**
+ * struct amdgpu_dm_backlight_caps - Information about backlight
+ *
+ * Describe the backlight support for ACPI or eDP AUX.
+ */
+struct amdgpu_dm_backlight_caps {
+	/**
+	 * @ext_caps: Keep the data struct with all the information about the
+	 * display support for HDR.
+	 */
+	union dpcd_sink_ext_caps *ext_caps;
+	/**
+	 * @aux_min_input_signal: Min brightness value supported by the display
+	 */
+	u32 aux_min_input_signal;
+	/**
+	 * @aux_max_input_signal: Max brightness value supported by the display
+	 * in nits.
+	 */
+	u32 aux_max_input_signal;
+	/**
+	 * @min_input_signal: minimum possible input in range 0-255.
+	 */
+	int min_input_signal;
+	/**
+	 * @max_input_signal: maximum possible input in range 0-255.
+	 */
+	int max_input_signal;
+	/**
+	 * @caps_valid: true if these values are from the ACPI interface.
+	 */
+	bool caps_valid;
+	/**
+	 * @aux_support: Describes if the display supports AUX backlight.
+	 */
+	bool aux_support;
+};
+
+/**
+ * struct dal_allocation - Tracks mapped FB memory for SMU communication
+ * @list: list of dal allocations
+ * @bo: GPU buffer object
+ * @cpu_ptr: CPU virtual address of the GPU buffer object
+ * @gpu_addr: GPU virtual address of the GPU buffer object
+ */
+struct dal_allocation {
+	struct list_head list;
+	struct amdgpu_bo *bo;
+	void *cpu_ptr;
+	u64 gpu_addr;
+};
+
+/**
+ * struct hpd_rx_irq_offload_work_queue - Work queue to handle hpd_rx_irq
+ * offload work
+ */
+struct hpd_rx_irq_offload_work_queue {
+	/**
+	 * @wq: workqueue structure to queue offload work.
+	 */
+	struct workqueue_struct *wq;
+	/**
+	 * @offload_lock: To protect fields of offload work queue.
+	 */
+	spinlock_t offload_lock;
+	/**
+	 * @is_handling_link_loss: Used to prevent inserting link loss event when
+	 * we're handling link loss
+	 */
+	bool is_handling_link_loss;
+	/**
+	 * @is_handling_mst_msg_rdy_event: Used to prevent inserting mst message
+	 * ready event when we're already handling mst message ready event
+	 */
+	bool is_handling_mst_msg_rdy_event;
+	/**
+	 * @aconnector: The aconnector that this work queue is attached to
+	 */
+	struct amdgpu_dm_connector *aconnector;
+};
+
+/**
+ * struct hpd_rx_irq_offload_work - hpd_rx_irq offload work structure
+ */
+struct hpd_rx_irq_offload_work {
+	/**
+	 * @work: offload work
+	 */
+	struct work_struct work;
+	/**
+	 * @data: reference irq data which is used while handling offload work
+	 */
+	union hpd_irq_data data;
+	/**
+	 * @offload_wq: offload work queue that this work is queued to
+	 */
+	struct hpd_rx_irq_offload_work_queue *offload_wq;
+};
+
+/**
+ * struct amdgpu_display_manager - Central amdgpu display manager device
+ *
+ * @dc: Display Core control structure
+ * @adev: AMDGPU base driver structure
+ * @ddev: DRM base driver structure
+ * @display_indexes_num: Max number of display streams supported
+ * @irq_handler_list_table_lock: Synchronizes access to IRQ tables
+ * @backlight_dev: Backlight control device
+ * @backlight_link: Link on which to control backlight
+ * @backlight_caps: Capabilities of the backlight device
+ * @freesync_module: Module handling freesync calculations
+ * @hdcp_workqueue: AMDGPU content protection queue
+ * @fw_dmcu: Reference to DMCU firmware
+ * @dmcu_fw_version: Version of the DMCU firmware
+ * @soc_bounding_box: SOC bounding box values provided by gpu_info FW
+ * @cached_state: Caches device atomic state for suspend/resume
+ * @cached_dc_state: Cached state of content streams
+ * @compressor: Frame buffer compression buffer. See &struct dm_compressor_info
+ * @force_timing_sync: set via debugfs. When set, indicates that all connected
+ *		       displays will be forced to synchronize.
+ * @dmcub_trace_event_en: enable dmcub trace events
+ * @dmub_outbox_params: DMUB Outbox parameters
+ * @num_of_edps: number of backlight eDPs
+ * @disable_hpd_irq: disables all HPD and HPD RX interrupt handling in the
+ *		     driver when true
+ * @dmub_aux_transfer_done: struct completion used to indicate when DMUB
+ * 			    transfers are done
+ * @delayed_hpd_wq: work queue used to delay DMUB HPD work
+ */
+struct amdgpu_display_manager {
+
+	struct dc *dc;
+
+	/**
+	 * @dmub_srv:
+	 *
+	 * DMUB service, used for controlling the DMUB on hardware
+	 * that supports it. The pointer to the dmub_srv will be
+	 * NULL on hardware that does not support it.
+	 */
+	struct dmub_srv *dmub_srv;
+
+	/**
+	 * @dmub_notify:
+	 *
+	 * Notification from DMUB.
+	 */
+
+	struct dmub_notification *dmub_notify;
+
+	/**
+	 * @dmub_callback:
+	 *
+	 * Callback functions to handle notification from DMUB.
+	 */
+
+	dmub_notify_interrupt_callback_t dmub_callback[AMDGPU_DMUB_NOTIFICATION_MAX];
+
+	/**
+	 * @dmub_thread_offload:
+	 *
+	 * Flag to indicate if callback is offload.
+	 */
+
+	bool dmub_thread_offload[AMDGPU_DMUB_NOTIFICATION_MAX];
+
+	/**
+	 * @dmub_fb_info:
+	 *
+	 * Framebuffer regions for the DMUB.
+	 */
+	struct dmub_srv_fb_info *dmub_fb_info;
+
+	/**
+	 * @dmub_fw:
+	 *
+	 * DMUB firmware, required on hardware that has DMUB support.
+	 */
+	const struct firmware *dmub_fw;
+
+	/**
+	 * @dmub_bo:
+	 *
+	 * Buffer object for the DMUB.
+	 */
+	struct amdgpu_bo *dmub_bo;
+
+	/**
+	 * @dmub_bo_gpu_addr:
+	 *
+	 * GPU virtual address for the DMUB buffer object.
+	 */
+	u64 dmub_bo_gpu_addr;
+
+	/**
+	 * @dmub_bo_cpu_addr:
+	 *
+	 * CPU address for the DMUB buffer object.
+	 */
+	void *dmub_bo_cpu_addr;
+
+	/**
+	 * @dmcub_fw_version:
+	 *
+	 * DMCUB firmware version.
+	 */
+	uint32_t dmcub_fw_version;
+
+	/**
+	 * @cgs_device:
+	 *
+	 * The Common Graphics Services device. It provides an interface for
+	 * accessing registers.
+	 */
+	struct cgs_device *cgs_device;
+
+	struct amdgpu_device *adev;
+	struct drm_device *ddev;
+	u16 display_indexes_num;
+
+	/**
+	 * @atomic_obj:
+	 *
+	 * In combination with &dm_atomic_state it helps manage
+	 * global atomic state that doesn't map cleanly into existing
+	 * drm resources, like &dc_context.
+	 */
+	struct drm_private_obj atomic_obj;
+
+	/**
+	 * @dc_lock:
+	 *
+	 * Guards access to DC functions that can issue register write
+	 * sequences.
+	 */
+	struct mutex dc_lock;
+
+	/**
+	 * @audio_lock:
+	 *
+	 * Guards access to audio instance changes.
+	 */
+	struct mutex audio_lock;
+
+	/**
+	 * @audio_component:
+	 *
+	 * Used to notify ELD changes to sound driver.
+	 */
+	struct drm_audio_component *audio_component;
+
+	/**
+	 * @audio_registered:
+	 *
+	 * True if the audio component has been registered
+	 * successfully, false otherwise.
+	 */
+	bool audio_registered;
+
+	/**
+	 * @irq_handler_list_low_tab:
+	 *
+	 * Low priority IRQ handler table.
+	 *
+	 * It is a n*m table consisting of n IRQ sources, and m handlers per IRQ
+	 * source. Low priority IRQ handlers are deferred to a workqueue to be
+	 * processed. Hence, they can sleep.
+	 *
+	 * Note that handlers are called in the same order as they were
+	 * registered (FIFO).
+	 */
+	struct list_head irq_handler_list_low_tab[DAL_IRQ_SOURCES_NUMBER];
+
+	/**
+	 * @irq_handler_list_high_tab:
+	 *
+	 * High priority IRQ handler table.
+	 *
+	 * It is a n*m table, same as &irq_handler_list_low_tab. However,
+	 * handlers in this table are not deferred and are called immediately.
+	 */
+	struct list_head irq_handler_list_high_tab[DAL_IRQ_SOURCES_NUMBER];
+
+	/**
+	 * @pflip_params:
+	 *
+	 * Page flip IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
+	struct common_irq_params
+	pflip_params[DC_IRQ_SOURCE_PFLIP_LAST - DC_IRQ_SOURCE_PFLIP_FIRST + 1];
+
+	/**
+	 * @vblank_params:
+	 *
+	 * Vertical blanking IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
+	struct common_irq_params
+	vblank_params[DC_IRQ_SOURCE_VBLANK6 - DC_IRQ_SOURCE_VBLANK1 + 1];
+
+	/**
+	 * @vline0_params:
+	 *
+	 * OTG vertical interrupt0 IRQ parameters, passed to registered
+	 * handlers when triggered.
+	 */
+	struct common_irq_params
+	vline0_params[DC_IRQ_SOURCE_DC6_VLINE0 - DC_IRQ_SOURCE_DC1_VLINE0 + 1];
+
+	/**
+	 * @vupdate_params:
+	 *
+	 * Vertical update IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
+	struct common_irq_params
+	vupdate_params[DC_IRQ_SOURCE_VUPDATE6 - DC_IRQ_SOURCE_VUPDATE1 + 1];
+
+	/**
+	 * @dmub_trace_params:
+	 *
+	 * DMUB trace event IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
+	struct common_irq_params
+	dmub_trace_params[1];
+
+	struct common_irq_params
+	dmub_outbox_params[1];
+
+	spinlock_t irq_handler_list_table_lock;
+
+	struct backlight_device *backlight_dev[AMDGPU_DM_MAX_NUM_EDP];
+
+	const struct dc_link *backlight_link[AMDGPU_DM_MAX_NUM_EDP];
+
+	uint8_t num_of_edps;
+
+	struct amdgpu_dm_backlight_caps backlight_caps[AMDGPU_DM_MAX_NUM_EDP];
+
+	struct mod_freesync *freesync_module;
+	struct hdcp_workqueue *hdcp_workqueue;
+
+	/**
+	 * @vblank_control_workqueue:
+	 *
+	 * Deferred work for vblank control events.
+	 */
+	struct workqueue_struct *vblank_control_workqueue;
+
+	struct drm_atomic_state *cached_state;
+	struct dc_state *cached_dc_state;
+
+	struct dm_compressor_info compressor;
+
+	const struct firmware *fw_dmcu;
+	uint32_t dmcu_fw_version;
+	/**
+	 * @soc_bounding_box:
+	 *
+	 * gpu_info FW provided soc bounding box struct or 0 if not
+	 * available in FW
+	 */
+	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
+
+	/**
+	 * @active_vblank_irq_count:
+	 *
+	 * number of currently active vblank irqs
+	 */
+	uint32_t active_vblank_irq_count;
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	/**
+	 * @secure_display_ctxs:
+	 *
+	 * Store the ROI information and the work_struct to command dmub and psp for
+	 * all crtcs.
+	 */
+	struct secure_display_context *secure_display_ctxs;
+#endif
+	/**
+	 * @hpd_rx_offload_wq:
+	 *
+	 * Work queue to offload works of hpd_rx_irq
+	 */
+	struct hpd_rx_irq_offload_work_queue *hpd_rx_offload_wq;
+	/**
+	 * @mst_encoders:
+	 *
+	 * fake encoders used for DP MST.
+	 */
+	struct amdgpu_encoder mst_encoders[AMDGPU_DM_MAX_CRTC];
+	bool force_timing_sync;
+	bool disable_hpd_irq;
+	bool dmcub_trace_event_en;
+	/**
+	 * @da_list:
+	 *
+	 * DAL fb memory allocation list, for communication with SMU.
+	 */
+	struct list_head da_list;
+	struct completion dmub_aux_transfer_done;
+	struct workqueue_struct *delayed_hpd_wq;
+
+	/**
+	 * @brightness:
+	 *
+	 * cached backlight values.
+	 */
+	u32 brightness[AMDGPU_DM_MAX_NUM_EDP];
+	/**
+	 * @actual_brightness:
+	 *
+	 * last successfully applied backlight values.
+	 */
+	u32 actual_brightness[AMDGPU_DM_MAX_NUM_EDP];
+
+	/**
+	 * @aux_hpd_discon_quirk:
+	 *
+	 * quirk for hpd discon while aux is on-going.
+	 * occurred on certain intel platform
+	 */
+	bool aux_hpd_discon_quirk;
+
+	/**
+	 * @dpia_aux_lock:
+	 *
+	 * Guards access to DPIA AUX
+	 */
+	struct mutex dpia_aux_lock;
+};
+
+enum dsc_clock_force_state {
+	DSC_CLK_FORCE_DEFAULT = 0,
+	DSC_CLK_FORCE_ENABLE,
+	DSC_CLK_FORCE_DISABLE,
+};
+
+struct dsc_preferred_settings {
+	enum dsc_clock_force_state dsc_force_enable;
+	uint32_t dsc_num_slices_v;
+	uint32_t dsc_num_slices_h;
+	uint32_t dsc_bits_per_pixel;
+	bool dsc_force_disable_passthrough;
+};
+
+enum mst_progress_status {
+	MST_STATUS_DEFAULT = 0,
+	MST_PROBE = BIT(0),
+	MST_REMOTE_EDID = BIT(1),
+	MST_ALLOCATE_NEW_PAYLOAD = BIT(2),
+	MST_CLEAR_ALLOCATED_PAYLOAD = BIT(3),
+};
+
+/**
+ * struct amdgpu_hdmi_vsdb_info - Keep track of the VSDB info
+ *
+ * AMDGPU supports FreeSync over HDMI by using the VSDB section, and this
+ * struct is useful to keep track of the display-specific information about
+ * FreeSync.
+ */
+struct amdgpu_hdmi_vsdb_info {
+	/**
+	 * @amd_vsdb_version: Vendor Specific Data Block Version, should be
+	 * used to determine which Vendor Specific InfoFrame (VSIF) to send.
+	 */
+	unsigned int amd_vsdb_version;
+
+	/**
+	 * @freesync_supported: FreeSync Supported.
+	 */
+	bool freesync_supported;
+
+	/**
+	 * @min_refresh_rate_hz: FreeSync Minimum Refresh Rate in Hz.
+	 */
+	unsigned int min_refresh_rate_hz;
+
+	/**
+	 * @max_refresh_rate_hz: FreeSync Maximum Refresh Rate in Hz
+	 */
+	unsigned int max_refresh_rate_hz;
+
+	/**
+	 * @replay_mode: Replay supported
+	 */
+	bool replay_mode;
+};
+
+struct amdgpu_dm_connector {
+
+	struct drm_connector base;
+	uint32_t connector_id;
+	int bl_idx;
+
+	/* we need to mind the EDID between detect
+	   and get modes due to analog/digital/tvencoder */
+	struct edid *edid;
+
+	/* shared with amdgpu */
+	struct amdgpu_hpd hpd;
+
+	/* number of modes generated from EDID at 'dc_sink' */
+	int num_modes;
+
+	/* The 'old' sink - before an HPD.
+	 * The 'current' sink is in dc_link->sink. */
+	struct dc_sink *dc_sink;
+	struct dc_link *dc_link;
+
+	/**
+	 * @dc_em_sink: Reference to the emulated (virtual) sink.
+	 */
+	struct dc_sink *dc_em_sink;
+
+	/* DM only */
+	struct drm_dp_mst_topology_mgr mst_mgr;
+	struct amdgpu_dm_dp_aux dm_dp_aux;
+	struct drm_dp_mst_port *mst_output_port;
+	struct amdgpu_dm_connector *mst_root;
+	struct drm_dp_aux *dsc_aux;
+	struct mutex handle_mst_msg_ready;
+
+	/* TODO see if we can merge with ddc_bus or make a dm_connector */
+	struct amdgpu_i2c_adapter *i2c;
+
+	/* Monitor range limits */
+	/**
+	 * @min_vfreq: Minimal frequency supported by the display in Hz. This
+	 * value is set to zero when there is no FreeSync support.
+	 */
+	int min_vfreq;
+
+	/**
+	 * @max_vfreq: Maximum frequency supported by the display in Hz. This
+	 * value is set to zero when there is no FreeSync support.
+	 */
+	int max_vfreq ;
+	int pixel_clock_mhz;
+
+	/* Audio instance - protected by audio_lock. */
+	int audio_inst;
+
+	struct mutex hpd_lock;
+
+	bool fake_enable;
+	bool force_yuv420_output;
+	struct dsc_preferred_settings dsc_settings;
+	union dp_downstream_port_present mst_downstream_port_present;
+	/* Cached display modes */
+	struct drm_display_mode freesync_vid_base;
+
+	int psr_skip_count;
+
+	/* Record progress status of mst*/
+	uint8_t mst_status;
+
+	/* Automated testing */
+	bool timing_changed;
+	struct dc_crtc_timing *timing_requested;
+
+	/* Adaptive Sync */
+	bool pack_sdp_v1_3;
+	enum adaptive_sync_type as_type;
+	struct amdgpu_hdmi_vsdb_info vsdb_info;
+};
+
+static inline void amdgpu_dm_set_mst_status(uint8_t *status,
+		uint8_t flags, bool set)
+{
+	if (set)
+		*status |= flags;
+	else
+		*status &= ~flags;
+}
+
+#define to_amdgpu_dm_connector(x) container_of(x, struct amdgpu_dm_connector, base)
+
+extern const struct amdgpu_ip_block_version dm_ip_block;
+
+struct dm_plane_state {
+	struct drm_plane_state base;
+	struct dc_plane_state *dc_state;
+};
+
+struct dm_crtc_state {
+	struct drm_crtc_state base;
+	struct dc_stream_state *stream;
+
+	bool cm_has_degamma;
+	bool cm_is_degamma_srgb;
+
+	bool mpo_requested;
+
+	int update_type;
+	int active_planes;
+
+	int crc_skip_count;
+
+	bool freesync_vrr_info_changed;
+
+	bool dsc_force_changed;
+	bool vrr_supported;
+	struct mod_freesync_config freesync_config;
+	struct dc_info_packet vrr_infopacket;
+
+	int abm_level;
+};
+
+#define to_dm_crtc_state(x) container_of(x, struct dm_crtc_state, base)
+
+struct dm_atomic_state {
+	struct drm_private_state base;
+
+	struct dc_state *context;
+};
+
+#define to_dm_atomic_state(x) container_of(x, struct dm_atomic_state, base)
+
+struct dm_connector_state {
+	struct drm_connector_state base;
+
+	enum amdgpu_rmx_type scaling;
+	uint8_t underscan_vborder;
+	uint8_t underscan_hborder;
+	bool underscan_enable;
+	bool freesync_capable;
+	bool update_hdcp;
+	uint8_t abm_level;
+	int vcpi_slots;
+	uint64_t pbn;
+};
+
+#define to_dm_connector_state(x)\
+	container_of((x), struct dm_connector_state, base)
+
+void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector);
+struct drm_connector_state *
+amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector);
+int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
+					    struct drm_connector_state *state,
+					    struct drm_property *property,
+					    uint64_t val);
+
+int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
+					    const struct drm_connector_state *state,
+					    struct drm_property *property,
+					    uint64_t *val);
+
+int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev);
+
+void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
+				     struct amdgpu_dm_connector *aconnector,
+				     int connector_type,
+				     struct dc_link *link,
+				     int link_index);
+
+enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
+				   struct drm_display_mode *mode);
+
+void dm_restore_drm_connector_state(struct drm_device *dev,
+				    struct drm_connector *connector);
+
+void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
+					struct edid *edid);
+
+void amdgpu_dm_trigger_timing_sync(struct drm_device *dev);
+
+#define MAX_COLOR_LUT_ENTRIES 4096
+/* Legacy gamm LUT users such as X doesn't like large LUT sizes */
+#define MAX_COLOR_LEGACY_LUT_ENTRIES 256
+
+void amdgpu_dm_init_color_mod(void);
+int amdgpu_dm_verify_lut_sizes(const struct drm_crtc_state *crtc_state);
+int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc);
+int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
+				      struct dc_plane_state *dc_plane_state);
+
+void amdgpu_dm_update_connector_after_detect(
+		struct amdgpu_dm_connector *aconnector);
+
+extern const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs;
+
+int amdgpu_dm_process_dmub_aux_transfer_sync(struct dc_context *ctx, unsigned int link_index,
+					struct aux_payload *payload, enum aux_return_code_type *operation_result);
+
+int amdgpu_dm_process_dmub_set_config_sync(struct dc_context *ctx, unsigned int link_index,
+					struct set_config_cmd_payload *payload, enum set_config_status *operation_result);
+
+bool check_seamless_boot_capability(struct amdgpu_device *adev);
+
+struct dc_stream_state *
+	create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+					const struct drm_display_mode *drm_mode,
+					const struct dm_connector_state *dm_state,
+					const struct dc_stream_state *old_stream);
+
+int dm_atomic_get_state(struct drm_atomic_state *state,
+			struct dm_atomic_state **dm_state);
+
+struct amdgpu_dm_connector *
+amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
+					     struct drm_crtc *crtc);
+
+int convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_depth);
+#endif /* __AMDGPU_DM_H__ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
new file mode 100644
index 000000000..a4cb23d05
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -0,0 +1,590 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "amdgpu.h"
+#include "amdgpu_mode.h"
+#include "amdgpu_dm.h"
+#include "dc.h"
+#include "modules/color/color_gamma.h"
+#include "basics/conversion.h"
+
+/**
+ * DOC: overview
+ *
+ * The DC interface to HW gives us the following color management blocks
+ * per pipe (surface):
+ *
+ * - Input gamma LUT (de-normalized)
+ * - Input CSC (normalized)
+ * - Surface degamma LUT (normalized)
+ * - Surface CSC (normalized)
+ * - Surface regamma LUT (normalized)
+ * - Output CSC (normalized)
+ *
+ * But these aren't a direct mapping to DRM color properties. The current DRM
+ * interface exposes CRTC degamma, CRTC CTM and CRTC regamma while our hardware
+ * is essentially giving:
+ *
+ * Plane CTM -> Plane degamma -> Plane CTM -> Plane regamma -> Plane CTM
+ *
+ * The input gamma LUT block isn't really applicable here since it operates
+ * on the actual input data itself rather than the HW fp representation. The
+ * input and output CSC blocks are technically available to use as part of
+ * the DC interface but are typically used internally by DC for conversions
+ * between color spaces. These could be blended together with user
+ * adjustments in the future but for now these should remain untouched.
+ *
+ * The pipe blending also happens after these blocks so we don't actually
+ * support any CRTC props with correct blending with multiple planes - but we
+ * can still support CRTC color management properties in DM in most single
+ * plane cases correctly with clever management of the DC interface in DM.
+ *
+ * As per DRM documentation, blocks should be in hardware bypass when their
+ * respective property is set to NULL. A linear DGM/RGM LUT should also
+ * considered as putting the respective block into bypass mode.
+ *
+ * This means that the following
+ * configuration is assumed to be the default:
+ *
+ * Plane DGM Bypass -> Plane CTM Bypass -> Plane RGM Bypass -> ...
+ * CRTC DGM Bypass -> CRTC CTM Bypass -> CRTC RGM Bypass
+ */
+
+#define MAX_DRM_LUT_VALUE 0xFFFF
+
+/**
+ * amdgpu_dm_init_color_mod - Initialize the color module.
+ *
+ * We're not using the full color module, only certain components.
+ * Only call setup functions for components that we need.
+ */
+void amdgpu_dm_init_color_mod(void)
+{
+	setup_x_points_distribution();
+}
+
+/**
+ * __extract_blob_lut - Extracts the DRM lut and lut size from a blob.
+ * @blob: DRM color mgmt property blob
+ * @size: lut size
+ *
+ * Returns:
+ * DRM LUT or NULL
+ */
+static const struct drm_color_lut *
+__extract_blob_lut(const struct drm_property_blob *blob, uint32_t *size)
+{
+	*size = blob ? drm_color_lut_size(blob) : 0;
+	return blob ? (struct drm_color_lut *)blob->data : NULL;
+}
+
+/**
+ * __is_lut_linear - check if the given lut is a linear mapping of values
+ * @lut: given lut to check values
+ * @size: lut size
+ *
+ * It is considered linear if the lut represents:
+ * f(a) = (0xFF00/MAX_COLOR_LUT_ENTRIES-1)a; for integer a in [0,
+ * MAX_COLOR_LUT_ENTRIES)
+ *
+ * Returns:
+ * True if the given lut is a linear mapping of values, i.e. it acts like a
+ * bypass LUT. Otherwise, false.
+ */
+static bool __is_lut_linear(const struct drm_color_lut *lut, uint32_t size)
+{
+	int i;
+	uint32_t expected;
+	int delta;
+
+	for (i = 0; i < size; i++) {
+		/* All color values should equal */
+		if ((lut[i].red != lut[i].green) || (lut[i].green != lut[i].blue))
+			return false;
+
+		expected = i * MAX_DRM_LUT_VALUE / (size-1);
+
+		/* Allow a +/-1 error. */
+		delta = lut[i].red - expected;
+		if (delta < -1 || 1 < delta)
+			return false;
+	}
+	return true;
+}
+
+/**
+ * __drm_lut_to_dc_gamma - convert the drm_color_lut to dc_gamma.
+ * @lut: DRM lookup table for color conversion
+ * @gamma: DC gamma to set entries
+ * @is_legacy: legacy or atomic gamma
+ *
+ * The conversion depends on the size of the lut - whether or not it's legacy.
+ */
+static void __drm_lut_to_dc_gamma(const struct drm_color_lut *lut,
+				  struct dc_gamma *gamma, bool is_legacy)
+{
+	uint32_t r, g, b;
+	int i;
+
+	if (is_legacy) {
+		for (i = 0; i < MAX_COLOR_LEGACY_LUT_ENTRIES; i++) {
+			r = drm_color_lut_extract(lut[i].red, 16);
+			g = drm_color_lut_extract(lut[i].green, 16);
+			b = drm_color_lut_extract(lut[i].blue, 16);
+
+			gamma->entries.red[i] = dc_fixpt_from_int(r);
+			gamma->entries.green[i] = dc_fixpt_from_int(g);
+			gamma->entries.blue[i] = dc_fixpt_from_int(b);
+		}
+		return;
+	}
+
+	/* else */
+	for (i = 0; i < MAX_COLOR_LUT_ENTRIES; i++) {
+		r = drm_color_lut_extract(lut[i].red, 16);
+		g = drm_color_lut_extract(lut[i].green, 16);
+		b = drm_color_lut_extract(lut[i].blue, 16);
+
+		gamma->entries.red[i] = dc_fixpt_from_fraction(r, MAX_DRM_LUT_VALUE);
+		gamma->entries.green[i] = dc_fixpt_from_fraction(g, MAX_DRM_LUT_VALUE);
+		gamma->entries.blue[i] = dc_fixpt_from_fraction(b, MAX_DRM_LUT_VALUE);
+	}
+}
+
+/**
+ * __drm_ctm_to_dc_matrix - converts a DRM CTM to a DC CSC float matrix
+ * @ctm: DRM color transformation matrix
+ * @matrix: DC CSC float matrix
+ *
+ * The matrix needs to be a 3x4 (12 entry) matrix.
+ */
+static void __drm_ctm_to_dc_matrix(const struct drm_color_ctm *ctm,
+				   struct fixed31_32 *matrix)
+{
+	int64_t val;
+	int i;
+
+	/*
+	 * DRM gives a 3x3 matrix, but DC wants 3x4. Assuming we're operating
+	 * with homogeneous coordinates, augment the matrix with 0's.
+	 *
+	 * The format provided is S31.32, using signed-magnitude representation.
+	 * Our fixed31_32 is also S31.32, but is using 2's complement. We have
+	 * to convert from signed-magnitude to 2's complement.
+	 */
+	for (i = 0; i < 12; i++) {
+		/* Skip 4th element */
+		if (i % 4 == 3) {
+			matrix[i] = dc_fixpt_zero;
+			continue;
+		}
+
+		/* gamut_remap_matrix[i] = ctm[i - floor(i/4)] */
+		val = ctm->matrix[i - (i / 4)];
+		/* If negative, convert to 2's complement. */
+		if (val & (1ULL << 63))
+			val = -(val & ~(1ULL << 63));
+
+		matrix[i].value = val;
+	}
+}
+
+/**
+ * __set_legacy_tf - Calculates the legacy transfer function
+ * @func: transfer function
+ * @lut: lookup table that defines the color space
+ * @lut_size: size of respective lut
+ * @has_rom: if ROM can be used for hardcoded curve
+ *
+ * Only for sRGB input space
+ *
+ * Returns:
+ * 0 in case of success, -ENOMEM if fails
+ */
+static int __set_legacy_tf(struct dc_transfer_func *func,
+			   const struct drm_color_lut *lut, uint32_t lut_size,
+			   bool has_rom)
+{
+	struct dc_gamma *gamma = NULL;
+	struct calculate_buffer cal_buffer = {0};
+	bool res;
+
+	ASSERT(lut && lut_size == MAX_COLOR_LEGACY_LUT_ENTRIES);
+
+	cal_buffer.buffer_index = -1;
+
+	gamma = dc_create_gamma();
+	if (!gamma)
+		return -ENOMEM;
+
+	gamma->type = GAMMA_RGB_256;
+	gamma->num_entries = lut_size;
+	__drm_lut_to_dc_gamma(lut, gamma, true);
+
+	res = mod_color_calculate_regamma_params(func, gamma, true, has_rom,
+						 NULL, &cal_buffer);
+
+	dc_gamma_release(&gamma);
+
+	return res ? 0 : -ENOMEM;
+}
+
+/**
+ * __set_output_tf - calculates the output transfer function based on expected input space.
+ * @func: transfer function
+ * @lut: lookup table that defines the color space
+ * @lut_size: size of respective lut
+ * @has_rom: if ROM can be used for hardcoded curve
+ *
+ * Returns:
+ * 0 in case of success. -ENOMEM if fails.
+ */
+static int __set_output_tf(struct dc_transfer_func *func,
+			   const struct drm_color_lut *lut, uint32_t lut_size,
+			   bool has_rom)
+{
+	struct dc_gamma *gamma = NULL;
+	struct calculate_buffer cal_buffer = {0};
+	bool res;
+
+	ASSERT(lut && lut_size == MAX_COLOR_LUT_ENTRIES);
+
+	cal_buffer.buffer_index = -1;
+
+	gamma = dc_create_gamma();
+	if (!gamma)
+		return -ENOMEM;
+
+	gamma->num_entries = lut_size;
+	__drm_lut_to_dc_gamma(lut, gamma, false);
+
+	if (func->tf == TRANSFER_FUNCTION_LINEAR) {
+		/*
+		 * Color module doesn't like calculating regamma params
+		 * on top of a linear input. But degamma params can be used
+		 * instead to simulate this.
+		 */
+		gamma->type = GAMMA_CUSTOM;
+		res = mod_color_calculate_degamma_params(NULL, func,
+							gamma, true);
+	} else {
+		/*
+		 * Assume sRGB. The actual mapping will depend on whether the
+		 * input was legacy or not.
+		 */
+		gamma->type = GAMMA_CS_TFM_1D;
+		res = mod_color_calculate_regamma_params(func, gamma, false,
+							 has_rom, NULL, &cal_buffer);
+	}
+
+	dc_gamma_release(&gamma);
+
+	return res ? 0 : -ENOMEM;
+}
+
+/**
+ * __set_input_tf - calculates the input transfer function based on expected
+ * input space.
+ * @func: transfer function
+ * @lut: lookup table that defines the color space
+ * @lut_size: size of respective lut.
+ *
+ * Returns:
+ * 0 in case of success. -ENOMEM if fails.
+ */
+static int __set_input_tf(struct dc_transfer_func *func,
+			  const struct drm_color_lut *lut, uint32_t lut_size)
+{
+	struct dc_gamma *gamma = NULL;
+	bool res;
+
+	gamma = dc_create_gamma();
+	if (!gamma)
+		return -ENOMEM;
+
+	gamma->type = GAMMA_CUSTOM;
+	gamma->num_entries = lut_size;
+
+	__drm_lut_to_dc_gamma(lut, gamma, false);
+
+	res = mod_color_calculate_degamma_params(NULL, func, gamma, true);
+	dc_gamma_release(&gamma);
+
+	return res ? 0 : -ENOMEM;
+}
+
+/**
+ * amdgpu_dm_verify_lut_sizes - verifies if DRM luts match the hw supported sizes
+ * @crtc_state: the DRM CRTC state
+ *
+ * Verifies that the Degamma and Gamma LUTs attached to the &crtc_state
+ * are of the expected size.
+ *
+ * Returns:
+ * 0 on success. -EINVAL if any lut sizes are invalid.
+ */
+int amdgpu_dm_verify_lut_sizes(const struct drm_crtc_state *crtc_state)
+{
+	const struct drm_color_lut *lut = NULL;
+	uint32_t size = 0;
+
+	lut = __extract_blob_lut(crtc_state->degamma_lut, &size);
+	if (lut && size != MAX_COLOR_LUT_ENTRIES) {
+		DRM_DEBUG_DRIVER(
+			"Invalid Degamma LUT size. Should be %u but got %u.\n",
+			MAX_COLOR_LUT_ENTRIES, size);
+		return -EINVAL;
+	}
+
+	lut = __extract_blob_lut(crtc_state->gamma_lut, &size);
+	if (lut && size != MAX_COLOR_LUT_ENTRIES &&
+	    size != MAX_COLOR_LEGACY_LUT_ENTRIES) {
+		DRM_DEBUG_DRIVER(
+			"Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n",
+			MAX_COLOR_LUT_ENTRIES, MAX_COLOR_LEGACY_LUT_ENTRIES,
+			size);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_dm_update_crtc_color_mgmt: Maps DRM color management to DC stream.
+ * @crtc: amdgpu_dm crtc state
+ *
+ * With no plane level color management properties we're free to use any
+ * of the HW blocks as long as the CRTC CTM always comes before the
+ * CRTC RGM and after the CRTC DGM.
+ *
+ * - The CRTC RGM block will be placed in the RGM LUT block if it is non-linear.
+ * - The CRTC DGM block will be placed in the DGM LUT block if it is non-linear.
+ * - The CRTC CTM will be placed in the gamut remap block if it is non-linear.
+ *
+ * The RGM block is typically more fully featured and accurate across
+ * all ASICs - DCE can't support a custom non-linear CRTC DGM.
+ *
+ * For supporting both plane level color management and CRTC level color
+ * management at once we have to either restrict the usage of CRTC properties
+ * or blend adjustments together.
+ *
+ * Returns:
+ * 0 on success. Error code if setup fails.
+ */
+int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc)
+{
+	struct dc_stream_state *stream = crtc->stream;
+	struct amdgpu_device *adev = drm_to_adev(crtc->base.state->dev);
+	bool has_rom = adev->asic_type <= CHIP_RAVEN;
+	struct drm_color_ctm *ctm = NULL;
+	const struct drm_color_lut *degamma_lut, *regamma_lut;
+	uint32_t degamma_size, regamma_size;
+	bool has_regamma, has_degamma;
+	bool is_legacy;
+	int r;
+
+	r = amdgpu_dm_verify_lut_sizes(&crtc->base);
+	if (r)
+		return r;
+
+	degamma_lut = __extract_blob_lut(crtc->base.degamma_lut, &degamma_size);
+	regamma_lut = __extract_blob_lut(crtc->base.gamma_lut, &regamma_size);
+
+	has_degamma =
+		degamma_lut && !__is_lut_linear(degamma_lut, degamma_size);
+
+	has_regamma =
+		regamma_lut && !__is_lut_linear(regamma_lut, regamma_size);
+
+	is_legacy = regamma_size == MAX_COLOR_LEGACY_LUT_ENTRIES;
+
+	/* Reset all adjustments. */
+	crtc->cm_has_degamma = false;
+	crtc->cm_is_degamma_srgb = false;
+
+	/* Setup regamma and degamma. */
+	if (is_legacy) {
+		/*
+		 * Legacy regamma forces us to use the sRGB RGM as a base.
+		 * This also means we can't use linear DGM since DGM needs
+		 * to use sRGB as a base as well, resulting in incorrect CRTC
+		 * DGM and CRTC CTM.
+		 *
+		 * TODO: Just map this to the standard regamma interface
+		 * instead since this isn't really right. One of the cases
+		 * where this setup currently fails is trying to do an
+		 * inverse color ramp in legacy userspace.
+		 */
+		crtc->cm_is_degamma_srgb = true;
+		stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS;
+		stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB;
+
+		r = __set_legacy_tf(stream->out_transfer_func, regamma_lut,
+				    regamma_size, has_rom);
+		if (r)
+			return r;
+	} else if (has_regamma) {
+		/* If atomic regamma, CRTC RGM goes into RGM LUT. */
+		stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS;
+		stream->out_transfer_func->tf = TRANSFER_FUNCTION_LINEAR;
+
+		r = __set_output_tf(stream->out_transfer_func, regamma_lut,
+				    regamma_size, has_rom);
+		if (r)
+			return r;
+	} else {
+		/*
+		 * No CRTC RGM means we can just put the block into bypass
+		 * since we don't have any plane level adjustments using it.
+		 */
+		stream->out_transfer_func->type = TF_TYPE_BYPASS;
+		stream->out_transfer_func->tf = TRANSFER_FUNCTION_LINEAR;
+	}
+
+	/*
+	 * CRTC DGM goes into DGM LUT. It would be nice to place it
+	 * into the RGM since it's a more featured block but we'd
+	 * have to place the CTM in the OCSC in that case.
+	 */
+	crtc->cm_has_degamma = has_degamma;
+
+	/* Setup CRTC CTM. */
+	if (crtc->base.ctm) {
+		ctm = (struct drm_color_ctm *)crtc->base.ctm->data;
+
+		/*
+		 * Gamut remapping must be used for gamma correction
+		 * since it comes before the regamma correction.
+		 *
+		 * OCSC could be used for gamma correction, but we'd need to
+		 * blend the adjustments together with the required output
+		 * conversion matrix - so just use the gamut remap block
+		 * for now.
+		 */
+		__drm_ctm_to_dc_matrix(ctm, stream->gamut_remap_matrix.matrix);
+
+		stream->gamut_remap_matrix.enable_remap = true;
+		stream->csc_color_matrix.enable_adjustment = false;
+	} else {
+		/* Bypass CTM. */
+		stream->gamut_remap_matrix.enable_remap = false;
+		stream->csc_color_matrix.enable_adjustment = false;
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_dm_update_plane_color_mgmt: Maps DRM color management to DC plane.
+ * @crtc: amdgpu_dm crtc state
+ * @dc_plane_state: target DC surface
+ *
+ * Update the underlying dc_stream_state's input transfer function (ITF) in
+ * preparation for hardware commit. The transfer function used depends on
+ * the preparation done on the stream for color management.
+ *
+ * Returns:
+ * 0 on success. -ENOMEM if mem allocation fails.
+ */
+int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
+				      struct dc_plane_state *dc_plane_state)
+{
+	const struct drm_color_lut *degamma_lut;
+	enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB;
+	uint32_t degamma_size;
+	int r;
+
+	/* Get the correct base transfer function for implicit degamma. */
+	switch (dc_plane_state->format) {
+	case SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr:
+	case SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb:
+		/* DC doesn't have a transfer function for BT601 specifically. */
+		tf = TRANSFER_FUNCTION_BT709;
+		break;
+	default:
+		break;
+	}
+
+	if (crtc->cm_has_degamma) {
+		degamma_lut = __extract_blob_lut(crtc->base.degamma_lut,
+						 &degamma_size);
+		ASSERT(degamma_size == MAX_COLOR_LUT_ENTRIES);
+
+		dc_plane_state->in_transfer_func->type =
+			TF_TYPE_DISTRIBUTED_POINTS;
+
+		/*
+		 * This case isn't fully correct, but also fairly
+		 * uncommon. This is userspace trying to use a
+		 * legacy gamma LUT + atomic degamma LUT
+		 * at the same time.
+		 *
+		 * Legacy gamma requires the input to be in linear
+		 * space, so that means we need to apply an sRGB
+		 * degamma. But color module also doesn't support
+		 * a user ramp in this case so the degamma will
+		 * be lost.
+		 *
+		 * Even if we did support it, it's still not right:
+		 *
+		 * Input -> CRTC DGM -> sRGB DGM -> CRTC CTM ->
+		 * sRGB RGM -> CRTC RGM -> Output
+		 *
+		 * The CSC will be done in the wrong space since
+		 * we're applying an sRGB DGM on top of the CRTC
+		 * DGM.
+		 *
+		 * TODO: Don't use the legacy gamma interface and just
+		 * map these to the atomic one instead.
+		 */
+		if (crtc->cm_is_degamma_srgb)
+			dc_plane_state->in_transfer_func->tf = tf;
+		else
+			dc_plane_state->in_transfer_func->tf =
+				TRANSFER_FUNCTION_LINEAR;
+
+		r = __set_input_tf(dc_plane_state->in_transfer_func,
+				   degamma_lut, degamma_size);
+		if (r)
+			return r;
+	} else if (crtc->cm_is_degamma_srgb) {
+		/*
+		 * For legacy gamma support we need the regamma input
+		 * in linear space. Assume that the input is sRGB.
+		 */
+		dc_plane_state->in_transfer_func->type = TF_TYPE_PREDEFINED;
+		dc_plane_state->in_transfer_func->tf = tf;
+
+		if (tf != TRANSFER_FUNCTION_SRGB &&
+		    !mod_color_calculate_degamma_params(NULL,
+			    dc_plane_state->in_transfer_func, NULL, false))
+			return -ENOMEM;
+	} else {
+		/* ...Otherwise we can just bypass the DGM block. */
+		dc_plane_state->in_transfer_func->type = TF_TYPE_BYPASS;
+		dc_plane_state->in_transfer_func->tf = TRANSFER_FUNCTION_LINEAR;
+	}
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
new file mode 100644
index 000000000..52ecfa746
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -0,0 +1,555 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_vblank.h>
+
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "dc.h"
+#include "amdgpu_securedisplay.h"
+
+static const char *const pipe_crc_sources[] = {
+	"none",
+	"crtc",
+	"crtc dither",
+	"dprx",
+	"dprx dither",
+	"auto",
+};
+
+static enum amdgpu_dm_pipe_crc_source dm_parse_crc_source(const char *source)
+{
+	if (!source || !strcmp(source, "none"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_NONE;
+	if (!strcmp(source, "auto") || !strcmp(source, "crtc"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_CRTC;
+	if (!strcmp(source, "dprx"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_DPRX;
+	if (!strcmp(source, "crtc dither"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER;
+	if (!strcmp(source, "dprx dither"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER;
+
+	return AMDGPU_DM_PIPE_CRC_SOURCE_INVALID;
+}
+
+static bool dm_is_crc_source_crtc(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER);
+}
+
+static bool dm_is_crc_source_dprx(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER);
+}
+
+static bool dm_need_crc_dither(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_NONE);
+}
+
+const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc,
+						  size_t *count)
+{
+	*count = ARRAY_SIZE(pipe_crc_sources);
+	return pipe_crc_sources;
+}
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+static void amdgpu_dm_set_crc_window_default(struct drm_crtc *crtc, struct dc_stream_state *stream)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_display_manager *dm = &drm_to_adev(drm_dev)->dm;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	bool was_activated;
+
+	spin_lock_irq(&drm_dev->event_lock);
+	was_activated = acrtc->dm_irq_params.window_param.activated;
+	acrtc->dm_irq_params.window_param.x_start = 0;
+	acrtc->dm_irq_params.window_param.y_start = 0;
+	acrtc->dm_irq_params.window_param.x_end = 0;
+	acrtc->dm_irq_params.window_param.y_end = 0;
+	acrtc->dm_irq_params.window_param.activated = false;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	acrtc->dm_irq_params.window_param.skip_frame_cnt = 0;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	/* Disable secure_display if it was enabled */
+	if (was_activated) {
+		/* stop ROI update on this crtc */
+		flush_work(&dm->secure_display_ctxs[crtc->index].notify_ta_work);
+		flush_work(&dm->secure_display_ctxs[crtc->index].forward_roi_work);
+		dc_stream_forward_crc_window(stream, NULL, true);
+	}
+}
+
+static void amdgpu_dm_crtc_notify_ta_to_read(struct work_struct *work)
+{
+	struct secure_display_context *secure_display_ctx;
+	struct psp_context *psp;
+	struct ta_securedisplay_cmd *securedisplay_cmd;
+	struct drm_crtc *crtc;
+	struct dc_stream_state *stream;
+	uint8_t phy_inst;
+	int ret;
+
+	secure_display_ctx = container_of(work, struct secure_display_context, notify_ta_work);
+	crtc = secure_display_ctx->crtc;
+
+	if (!crtc)
+		return;
+
+	psp = &drm_to_adev(crtc->dev)->psp;
+
+	if (!psp->securedisplay_context.context.initialized) {
+		DRM_DEBUG_DRIVER("Secure Display fails to notify PSP TA\n");
+		return;
+	}
+
+	stream = to_amdgpu_crtc(crtc)->dm_irq_params.stream;
+	phy_inst = stream->link->link_enc_hw_inst;
+
+	/* need lock for multiple crtcs to use the command buffer */
+	mutex_lock(&psp->securedisplay_context.mutex);
+
+	psp_prep_securedisplay_cmd_buf(psp, &securedisplay_cmd,
+						TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC);
+
+	securedisplay_cmd->securedisplay_in_message.send_roi_crc.phy_id = phy_inst;
+
+	/* PSP TA is expected to finish data transmission over I2C within current frame,
+	 * even there are up to 4 crtcs request to send in this frame.
+	 */
+	ret = psp_securedisplay_invoke(psp, TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC);
+
+	if (!ret) {
+		if (securedisplay_cmd->status != TA_SECUREDISPLAY_STATUS__SUCCESS)
+			psp_securedisplay_parse_resp_status(psp, securedisplay_cmd->status);
+	}
+
+	mutex_unlock(&psp->securedisplay_context.mutex);
+}
+
+static void
+amdgpu_dm_forward_crc_window(struct work_struct *work)
+{
+	struct secure_display_context *secure_display_ctx;
+	struct amdgpu_display_manager *dm;
+	struct drm_crtc *crtc;
+	struct dc_stream_state *stream;
+
+	secure_display_ctx = container_of(work, struct secure_display_context, forward_roi_work);
+	crtc = secure_display_ctx->crtc;
+
+	if (!crtc)
+		return;
+
+	dm = &drm_to_adev(crtc->dev)->dm;
+	stream = to_amdgpu_crtc(crtc)->dm_irq_params.stream;
+
+	mutex_lock(&dm->dc_lock);
+	dc_stream_forward_crc_window(stream, &secure_display_ctx->rect, false);
+	mutex_unlock(&dm->dc_lock);
+}
+
+bool amdgpu_dm_crc_window_is_activated(struct drm_crtc *crtc)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	bool ret = false;
+
+	spin_lock_irq(&drm_dev->event_lock);
+	ret = acrtc->dm_irq_params.window_param.activated;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return ret;
+}
+#endif
+
+int
+amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc, const char *src_name,
+				 size_t *values_cnt)
+{
+	enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name);
+
+	if (source < 0) {
+		DRM_DEBUG_DRIVER("Unknown CRC source %s for CRTC%d\n",
+				 src_name, crtc->index);
+		return -EINVAL;
+	}
+
+	*values_cnt = 3;
+	return 0;
+}
+
+int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
+					struct dm_crtc_state *dm_crtc_state,
+					enum amdgpu_dm_pipe_crc_source source)
+{
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+	struct dc_stream_state *stream_state = dm_crtc_state->stream;
+	bool enable = amdgpu_dm_is_valid_crc_source(source);
+	int ret = 0;
+
+	/* Configuration will be deferred to stream enable. */
+	if (!stream_state)
+		return -EINVAL;
+
+	mutex_lock(&adev->dm.dc_lock);
+
+	/* Enable or disable CRTC CRC generation */
+	if (dm_is_crc_source_crtc(source) || source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE) {
+		if (!dc_stream_configure_crc(stream_state->ctx->dc,
+					     stream_state, NULL, enable, enable)) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	}
+
+	/* Configure dithering */
+	if (!dm_need_crc_dither(source)) {
+		dc_stream_set_dither_option(stream_state, DITHER_OPTION_TRUN8);
+		dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state,
+					    DYN_EXPANSION_DISABLE);
+	} else {
+		dc_stream_set_dither_option(stream_state,
+					    DITHER_OPTION_DEFAULT);
+		dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state,
+					    DYN_EXPANSION_AUTO);
+	}
+
+unlock:
+	mutex_unlock(&adev->dm.dc_lock);
+
+	return ret;
+}
+
+int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name)
+{
+	enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name);
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct drm_crtc_commit *commit;
+	struct dm_crtc_state *crtc_state;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	struct drm_dp_aux *aux = NULL;
+	bool enable = false;
+	bool enabled = false;
+	int ret = 0;
+
+	if (source < 0) {
+		DRM_DEBUG_DRIVER("Unknown CRC source %s for CRTC%d\n",
+				 src_name, crtc->index);
+		return -EINVAL;
+	}
+
+	ret = drm_modeset_lock(&crtc->mutex, NULL);
+	if (ret)
+		return ret;
+
+	spin_lock(&crtc->commit_lock);
+	commit = list_first_entry_or_null(&crtc->commit_list,
+					  struct drm_crtc_commit, commit_entry);
+	if (commit)
+		drm_crtc_commit_get(commit);
+	spin_unlock(&crtc->commit_lock);
+
+	if (commit) {
+		/*
+		 * Need to wait for all outstanding programming to complete
+		 * in commit tail since it can modify CRC related fields and
+		 * hardware state. Since we're holding the CRTC lock we're
+		 * guaranteed that no other commit work can be queued off
+		 * before we modify the state below.
+		 */
+		ret = wait_for_completion_interruptible_timeout(
+			&commit->hw_done, 10 * HZ);
+		if (ret)
+			goto cleanup;
+	}
+
+	enable = amdgpu_dm_is_valid_crc_source(source);
+	crtc_state = to_dm_crtc_state(crtc->state);
+	spin_lock_irq(&drm_dev->event_lock);
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	/*
+	 * USER REQ SRC | CURRENT SRC | BEHAVIOR
+	 * -----------------------------
+	 * None         | None        | Do nothing
+	 * None         | CRTC        | Disable CRTC CRC, set default to dither
+	 * None         | DPRX        | Disable DPRX CRC, need 'aux', set default to dither
+	 * None         | CRTC DITHER | Disable CRTC CRC
+	 * None         | DPRX DITHER | Disable DPRX CRC, need 'aux'
+	 * CRTC         | XXXX        | Enable CRTC CRC, no dither
+	 * DPRX         | XXXX        | Enable DPRX CRC, need 'aux', no dither
+	 * CRTC DITHER  | XXXX        | Enable CRTC CRC, set dither
+	 * DPRX DITHER  | XXXX        | Enable DPRX CRC, need 'aux', set dither
+	 */
+	if (dm_is_crc_source_dprx(source) ||
+	    (source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE &&
+	     dm_is_crc_source_dprx(cur_crc_src))) {
+		struct amdgpu_dm_connector *aconn = NULL;
+		struct drm_connector *connector;
+		struct drm_connector_list_iter conn_iter;
+
+		drm_connector_list_iter_begin(crtc->dev, &conn_iter);
+		drm_for_each_connector_iter(connector, &conn_iter) {
+			if (!connector->state || connector->state->crtc != crtc)
+				continue;
+
+			aconn = to_amdgpu_dm_connector(connector);
+			break;
+		}
+		drm_connector_list_iter_end(&conn_iter);
+
+		if (!aconn) {
+			DRM_DEBUG_DRIVER("No amd connector matching CRTC-%d\n", crtc->index);
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+		aux = (aconn->mst_output_port) ? &aconn->mst_output_port->aux : &aconn->dm_dp_aux.aux;
+
+		if (!aux) {
+			DRM_DEBUG_DRIVER("No dp aux for amd connector\n");
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+		if ((aconn->base.connector_type != DRM_MODE_CONNECTOR_DisplayPort) &&
+				(aconn->base.connector_type != DRM_MODE_CONNECTOR_eDP)) {
+			DRM_DEBUG_DRIVER("No DP connector available for CRC source\n");
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+	}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	/* Reset secure_display when we change crc source from debugfs */
+	amdgpu_dm_set_crc_window_default(crtc, crtc_state->stream);
+#endif
+
+	if (amdgpu_dm_crtc_configure_crc_source(crtc, crtc_state, source)) {
+		ret = -EINVAL;
+		goto cleanup;
+	}
+
+	/*
+	 * Reading the CRC requires the vblank interrupt handler to be
+	 * enabled. Keep a reference until CRC capture stops.
+	 */
+	enabled = amdgpu_dm_is_valid_crc_source(cur_crc_src);
+	if (!enabled && enable) {
+		ret = drm_crtc_vblank_get(crtc);
+		if (ret)
+			goto cleanup;
+
+		if (dm_is_crc_source_dprx(source)) {
+			if (drm_dp_start_crc(aux, crtc)) {
+				DRM_DEBUG_DRIVER("dp start crc failed\n");
+				ret = -EINVAL;
+				goto cleanup;
+			}
+		}
+	} else if (enabled && !enable) {
+		drm_crtc_vblank_put(crtc);
+		if (dm_is_crc_source_dprx(source)) {
+			if (drm_dp_stop_crc(aux)) {
+				DRM_DEBUG_DRIVER("dp stop crc failed\n");
+				ret = -EINVAL;
+				goto cleanup;
+			}
+		}
+	}
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.crc_src = source;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	/* Reset crc_skipped on dm state */
+	crtc_state->crc_skip_count = 0;
+
+cleanup:
+	if (commit)
+		drm_crtc_commit_put(commit);
+
+	drm_modeset_unlock(&crtc->mutex);
+
+	return ret;
+}
+
+/**
+ * amdgpu_dm_crtc_handle_crc_irq: Report to DRM the CRC on given CRTC.
+ * @crtc: DRM CRTC object.
+ *
+ * This function should be called at the end of a vblank, when the fb has been
+ * fully processed through the pipe.
+ */
+void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc)
+{
+	struct dm_crtc_state *crtc_state;
+	struct dc_stream_state *stream_state;
+	struct drm_device *drm_dev = NULL;
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct amdgpu_crtc *acrtc = NULL;
+	uint32_t crcs[3];
+	unsigned long flags;
+
+	if (crtc == NULL)
+		return;
+
+	crtc_state = to_dm_crtc_state(crtc->state);
+	stream_state = crtc_state->stream;
+	acrtc = to_amdgpu_crtc(crtc);
+	drm_dev = crtc->dev;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+	/* Early return if CRC capture is not enabled. */
+	if (!amdgpu_dm_is_valid_crc_source(cur_crc_src))
+		return;
+
+	/*
+	 * Since flipping and crc enablement happen asynchronously, we - more
+	 * often than not - will be returning an 'uncooked' crc on first frame.
+	 * Probably because hw isn't ready yet. For added security, skip the
+	 * first two CRC values.
+	 */
+	if (crtc_state->crc_skip_count < 2) {
+		crtc_state->crc_skip_count += 1;
+		return;
+	}
+
+	if (dm_is_crc_source_crtc(cur_crc_src)) {
+		if (!dc_stream_get_crc(stream_state->ctx->dc, stream_state,
+				       &crcs[0], &crcs[1], &crcs[2]))
+			return;
+
+		drm_crtc_add_crc_entry(crtc, true,
+				       drm_crtc_accurate_vblank_count(crtc), crcs);
+	}
+}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc)
+{
+	struct drm_device *drm_dev = NULL;
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct amdgpu_crtc *acrtc = NULL;
+	struct amdgpu_device *adev = NULL;
+	struct secure_display_context *secure_display_ctx = NULL;
+	unsigned long flags1;
+
+	if (crtc == NULL)
+		return;
+
+	acrtc = to_amdgpu_crtc(crtc);
+	adev = drm_to_adev(crtc->dev);
+	drm_dev = crtc->dev;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags1);
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+
+	/* Early return if CRC capture is not enabled. */
+	if (!amdgpu_dm_is_valid_crc_source(cur_crc_src) ||
+		!dm_is_crc_source_crtc(cur_crc_src))
+		goto cleanup;
+
+	if (!acrtc->dm_irq_params.window_param.activated)
+		goto cleanup;
+
+	if (acrtc->dm_irq_params.window_param.skip_frame_cnt) {
+		acrtc->dm_irq_params.window_param.skip_frame_cnt -= 1;
+		goto cleanup;
+	}
+
+	secure_display_ctx = &adev->dm.secure_display_ctxs[acrtc->crtc_id];
+	if (WARN_ON(secure_display_ctx->crtc != crtc)) {
+		/* We have set the crtc when creating secure_display_context,
+		 * don't expect it to be changed here.
+		 */
+		secure_display_ctx->crtc = crtc;
+	}
+
+	if (acrtc->dm_irq_params.window_param.update_win) {
+		/* prepare work for dmub to update ROI */
+		secure_display_ctx->rect.x = acrtc->dm_irq_params.window_param.x_start;
+		secure_display_ctx->rect.y = acrtc->dm_irq_params.window_param.y_start;
+		secure_display_ctx->rect.width = acrtc->dm_irq_params.window_param.x_end -
+								acrtc->dm_irq_params.window_param.x_start;
+		secure_display_ctx->rect.height = acrtc->dm_irq_params.window_param.y_end -
+								acrtc->dm_irq_params.window_param.y_start;
+		schedule_work(&secure_display_ctx->forward_roi_work);
+
+		acrtc->dm_irq_params.window_param.update_win = false;
+
+		/* Statically skip 1 frame, because we may need to wait below things
+		 * before sending ROI to dmub:
+		 * 1. We defer the work by using system workqueue.
+		 * 2. We may need to wait for dc_lock before accessing dmub.
+		 */
+		acrtc->dm_irq_params.window_param.skip_frame_cnt = 1;
+
+	} else {
+		/* prepare work for psp to read ROI/CRC and send to I2C */
+		schedule_work(&secure_display_ctx->notify_ta_work);
+	}
+
+cleanup:
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags1);
+}
+
+struct secure_display_context *
+amdgpu_dm_crtc_secure_display_create_contexts(struct amdgpu_device *adev)
+{
+	struct secure_display_context *secure_display_ctxs = NULL;
+	int i;
+
+	secure_display_ctxs = kcalloc(adev->mode_info.num_crtc,
+				      sizeof(struct secure_display_context),
+				      GFP_KERNEL);
+
+	if (!secure_display_ctxs)
+		return NULL;
+
+	for (i = 0; i < adev->mode_info.num_crtc; i++) {
+		INIT_WORK(&secure_display_ctxs[i].forward_roi_work, amdgpu_dm_forward_crc_window);
+		INIT_WORK(&secure_display_ctxs[i].notify_ta_work, amdgpu_dm_crtc_notify_ta_to_read);
+		secure_display_ctxs[i].crtc = &adev->mode_info.crtcs[i]->base;
+	}
+
+	return secure_display_ctxs;
+}
+#endif
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
new file mode 100644
index 000000000..748e80ef4
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_
+#define AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_
+
+struct drm_crtc;
+struct dm_crtc_state;
+
+enum amdgpu_dm_pipe_crc_source {
+	AMDGPU_DM_PIPE_CRC_SOURCE_NONE = 0,
+	AMDGPU_DM_PIPE_CRC_SOURCE_CRTC,
+	AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER,
+	AMDGPU_DM_PIPE_CRC_SOURCE_DPRX,
+	AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER,
+	AMDGPU_DM_PIPE_CRC_SOURCE_MAX,
+	AMDGPU_DM_PIPE_CRC_SOURCE_INVALID = -1,
+};
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+struct crc_window_param {
+	uint16_t x_start;
+	uint16_t y_start;
+	uint16_t x_end;
+	uint16_t y_end;
+	/* CRC window is activated or not*/
+	bool activated;
+	/* Update crc window during vertical blank or not */
+	bool update_win;
+	/* skip reading/writing for few frames */
+	int skip_frame_cnt;
+};
+
+struct secure_display_context {
+	/* work to notify PSP TA*/
+	struct work_struct notify_ta_work;
+
+	/* work to forward ROI to dmcu/dmub */
+	struct work_struct forward_roi_work;
+
+	struct drm_crtc *crtc;
+
+	/* Region of Interest (ROI) */
+	struct rect rect;
+};
+#endif
+
+static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source source)
+{
+	return (source > AMDGPU_DM_PIPE_CRC_SOURCE_NONE) &&
+	       (source < AMDGPU_DM_PIPE_CRC_SOURCE_MAX);
+}
+
+/* amdgpu_dm_crc.c */
+#ifdef CONFIG_DEBUG_FS
+int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
+					struct dm_crtc_state *dm_crtc_state,
+					enum amdgpu_dm_pipe_crc_source source);
+int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name);
+int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc,
+				     const char *src_name,
+				     size_t *values_cnt);
+const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc,
+						  size_t *count);
+void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc);
+#else
+#define amdgpu_dm_crtc_set_crc_source NULL
+#define amdgpu_dm_crtc_verify_crc_source NULL
+#define amdgpu_dm_crtc_get_crc_sources NULL
+#define amdgpu_dm_crtc_handle_crc_irq(x)
+#endif
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+bool amdgpu_dm_crc_window_is_activated(struct drm_crtc *crtc);
+void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc);
+struct secure_display_context *amdgpu_dm_crtc_secure_display_create_contexts(
+						struct amdgpu_device *adev);
+#else
+#define amdgpu_dm_crc_window_is_activated(x)
+#define amdgpu_dm_crtc_handle_crc_window_irq(x)
+#define amdgpu_dm_crtc_secure_display_create_contexts(x)
+#endif
+
+#endif /* AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
new file mode 100644
index 000000000..97b7a0b8a
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -0,0 +1,499 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include <drm/drm_vblank.h>
+#include <drm/drm_atomic_helper.h>
+
+#include "dc.h"
+#include "amdgpu.h"
+#include "amdgpu_dm_psr.h"
+#include "amdgpu_dm_replay.h"
+#include "amdgpu_dm_crtc.h"
+#include "amdgpu_dm_plane.h"
+#include "amdgpu_dm_trace.h"
+#include "amdgpu_dm_debugfs.h"
+
+void amdgpu_dm_crtc_handle_vblank(struct amdgpu_crtc *acrtc)
+{
+	struct drm_crtc *crtc = &acrtc->base;
+	struct drm_device *dev = crtc->dev;
+	unsigned long flags;
+
+	drm_crtc_handle_vblank(crtc);
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+
+	/* Send completion event for cursor-only commits */
+	if (acrtc->event && acrtc->pflip_status != AMDGPU_FLIP_SUBMITTED) {
+		drm_crtc_send_vblank_event(crtc, acrtc->event);
+		drm_crtc_vblank_put(crtc);
+		acrtc->event = NULL;
+	}
+
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+bool amdgpu_dm_crtc_modeset_required(struct drm_crtc_state *crtc_state,
+			     struct dc_stream_state *new_stream,
+			     struct dc_stream_state *old_stream)
+{
+	return crtc_state->active && drm_atomic_crtc_needs_modeset(crtc_state);
+}
+
+bool amdgpu_dm_crtc_vrr_active_irq(struct amdgpu_crtc *acrtc)
+
+{
+	return acrtc->dm_irq_params.freesync_config.state ==
+		       VRR_STATE_ACTIVE_VARIABLE ||
+	       acrtc->dm_irq_params.freesync_config.state ==
+		       VRR_STATE_ACTIVE_FIXED;
+}
+
+int amdgpu_dm_crtc_set_vupdate_irq(struct drm_crtc *crtc, bool enable)
+{
+	enum dc_irq_source irq_source;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+	int rc;
+
+	if (acrtc->otg_inst == -1)
+		return 0;
+
+	irq_source = IRQ_TYPE_VUPDATE + acrtc->otg_inst;
+
+	rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
+
+	DRM_DEBUG_VBL("crtc %d - vupdate irq %sabling: r=%d\n",
+		      acrtc->crtc_id, enable ? "en" : "dis", rc);
+	return rc;
+}
+
+bool amdgpu_dm_crtc_vrr_active(struct dm_crtc_state *dm_state)
+{
+	return dm_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE ||
+	       dm_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED;
+}
+
+static void vblank_control_worker(struct work_struct *work)
+{
+	struct vblank_control_work *vblank_work =
+		container_of(work, struct vblank_control_work, work);
+	struct amdgpu_display_manager *dm = vblank_work->dm;
+
+	mutex_lock(&dm->dc_lock);
+
+	if (vblank_work->enable)
+		dm->active_vblank_irq_count++;
+	else if (dm->active_vblank_irq_count)
+		dm->active_vblank_irq_count--;
+
+	dc_allow_idle_optimizations(dm->dc, dm->active_vblank_irq_count == 0);
+
+	DRM_DEBUG_KMS("Allow idle optimizations (MALL): %d\n", dm->active_vblank_irq_count == 0);
+
+	/*
+	 * Control PSR based on vblank requirements from OS
+	 *
+	 * If panel supports PSR SU, there's no need to disable PSR when OS is
+	 * submitting fast atomic commits (we infer this by whether the OS
+	 * requests vblank events). Fast atomic commits will simply trigger a
+	 * full-frame-update (FFU); a specific case of selective-update (SU)
+	 * where the SU region is the full hactive*vactive region. See
+	 * fill_dc_dirty_rects().
+	 */
+	if (vblank_work->stream && vblank_work->stream->link) {
+		/*
+		 * Prioritize replay, instead of psr
+		 */
+		if (vblank_work->stream->link->replay_settings.replay_feature_enabled)
+			amdgpu_dm_replay_enable(vblank_work->stream, false);
+		else if (vblank_work->enable) {
+			if (vblank_work->stream->link->psr_settings.psr_version < DC_PSR_VERSION_SU_1 &&
+			    vblank_work->stream->link->psr_settings.psr_allow_active)
+				amdgpu_dm_psr_disable(vblank_work->stream);
+		} else if (vblank_work->stream->link->psr_settings.psr_feature_enabled &&
+			   !vblank_work->stream->link->psr_settings.psr_allow_active &&
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+			   !amdgpu_dm_crc_window_is_activated(&vblank_work->acrtc->base) &&
+#endif
+			   vblank_work->stream->link->panel_config.psr.disallow_replay &&
+			   vblank_work->acrtc->dm_irq_params.allow_psr_entry) {
+			amdgpu_dm_psr_enable(vblank_work->stream);
+		}
+	}
+
+	mutex_unlock(&dm->dc_lock);
+
+	dc_stream_release(vblank_work->stream);
+
+	kfree(vblank_work);
+}
+
+static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
+{
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+	struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
+	struct amdgpu_display_manager *dm = &adev->dm;
+	struct vblank_control_work *work;
+	int rc = 0;
+
+	if (acrtc->otg_inst == -1)
+		goto skip;
+
+	if (enable) {
+		/* vblank irq on -> Only need vupdate irq in vrr mode */
+		if (amdgpu_dm_crtc_vrr_active(acrtc_state))
+			rc = amdgpu_dm_crtc_set_vupdate_irq(crtc, true);
+	} else {
+		/* vblank irq off -> vupdate irq off */
+		rc = amdgpu_dm_crtc_set_vupdate_irq(crtc, false);
+	}
+
+	if (rc)
+		return rc;
+
+	rc = (enable)
+		? amdgpu_irq_get(adev, &adev->crtc_irq, acrtc->crtc_id)
+		: amdgpu_irq_put(adev, &adev->crtc_irq, acrtc->crtc_id);
+
+	if (rc)
+		return rc;
+
+skip:
+	if (amdgpu_in_reset(adev))
+		return 0;
+
+	if (dm->vblank_control_workqueue) {
+		work = kzalloc(sizeof(*work), GFP_ATOMIC);
+		if (!work)
+			return -ENOMEM;
+
+		INIT_WORK(&work->work, vblank_control_worker);
+		work->dm = dm;
+		work->acrtc = acrtc;
+		work->enable = enable;
+
+		if (acrtc_state->stream) {
+			dc_stream_retain(acrtc_state->stream);
+			work->stream = acrtc_state->stream;
+		}
+
+		queue_work(dm->vblank_control_workqueue, &work->work);
+	}
+
+	return 0;
+}
+
+int amdgpu_dm_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+	return dm_set_vblank(crtc, true);
+}
+
+void amdgpu_dm_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+	dm_set_vblank(crtc, false);
+}
+
+static void dm_crtc_destroy_state(struct drm_crtc *crtc,
+				  struct drm_crtc_state *state)
+{
+	struct dm_crtc_state *cur = to_dm_crtc_state(state);
+
+	/* TODO Destroy dc_stream objects are stream object is flattened */
+	if (cur->stream)
+		dc_stream_release(cur->stream);
+
+
+	__drm_atomic_helper_crtc_destroy_state(state);
+
+
+	kfree(state);
+}
+
+static struct drm_crtc_state *dm_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+	struct dm_crtc_state *state, *cur;
+
+	cur = to_dm_crtc_state(crtc->state);
+
+	if (WARN_ON(!crtc->state))
+		return NULL;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
+
+	if (cur->stream) {
+		state->stream = cur->stream;
+		dc_stream_retain(state->stream);
+	}
+
+	state->active_planes = cur->active_planes;
+	state->vrr_infopacket = cur->vrr_infopacket;
+	state->abm_level = cur->abm_level;
+	state->vrr_supported = cur->vrr_supported;
+	state->freesync_config = cur->freesync_config;
+	state->cm_has_degamma = cur->cm_has_degamma;
+	state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb;
+	state->crc_skip_count = cur->crc_skip_count;
+	state->mpo_requested = cur->mpo_requested;
+	/* TODO Duplicate dc_stream after objects are stream object is flattened */
+
+	return &state->base;
+}
+
+static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc)
+{
+	drm_crtc_cleanup(crtc);
+	kfree(crtc);
+}
+
+static void dm_crtc_reset_state(struct drm_crtc *crtc)
+{
+	struct dm_crtc_state *state;
+
+	if (crtc->state)
+		dm_crtc_destroy_state(crtc, crtc->state);
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (WARN_ON(!state))
+		return;
+
+	__drm_atomic_helper_crtc_reset(crtc, &state->base);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int amdgpu_dm_crtc_late_register(struct drm_crtc *crtc)
+{
+	crtc_debugfs_init(crtc);
+
+	return 0;
+}
+#endif
+
+/* Implemented only the options currently available for the driver */
+static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
+	.reset = dm_crtc_reset_state,
+	.destroy = amdgpu_dm_crtc_destroy,
+	.set_config = drm_atomic_helper_set_config,
+	.page_flip = drm_atomic_helper_page_flip,
+	.atomic_duplicate_state = dm_crtc_duplicate_state,
+	.atomic_destroy_state = dm_crtc_destroy_state,
+	.set_crc_source = amdgpu_dm_crtc_set_crc_source,
+	.verify_crc_source = amdgpu_dm_crtc_verify_crc_source,
+	.get_crc_sources = amdgpu_dm_crtc_get_crc_sources,
+	.get_vblank_counter = amdgpu_get_vblank_counter_kms,
+	.enable_vblank = amdgpu_dm_crtc_enable_vblank,
+	.disable_vblank = amdgpu_dm_crtc_disable_vblank,
+	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
+#if defined(CONFIG_DEBUG_FS)
+	.late_register = amdgpu_dm_crtc_late_register,
+#endif
+};
+
+static void dm_crtc_helper_disable(struct drm_crtc *crtc)
+{
+}
+
+static int count_crtc_active_planes(struct drm_crtc_state *new_crtc_state)
+{
+	struct drm_atomic_state *state = new_crtc_state->state;
+	struct drm_plane *plane;
+	int num_active = 0;
+
+	drm_for_each_plane_mask(plane, state->dev, new_crtc_state->plane_mask) {
+		struct drm_plane_state *new_plane_state;
+
+		/* Cursor planes are "fake". */
+		if (plane->type == DRM_PLANE_TYPE_CURSOR)
+			continue;
+
+		new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+
+		if (!new_plane_state) {
+			/*
+			 * The plane is enable on the CRTC and hasn't changed
+			 * state. This means that it previously passed
+			 * validation and is therefore enabled.
+			 */
+			num_active += 1;
+			continue;
+		}
+
+		/* We need a framebuffer to be considered enabled. */
+		num_active += (new_plane_state->fb != NULL);
+	}
+
+	return num_active;
+}
+
+static void dm_update_crtc_active_planes(struct drm_crtc *crtc,
+					 struct drm_crtc_state *new_crtc_state)
+{
+	struct dm_crtc_state *dm_new_crtc_state =
+		to_dm_crtc_state(new_crtc_state);
+
+	dm_new_crtc_state->active_planes = 0;
+
+	if (!dm_new_crtc_state->stream)
+		return;
+
+	dm_new_crtc_state->active_planes =
+		count_crtc_active_planes(new_crtc_state);
+}
+
+static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc,
+				      const struct drm_display_mode *mode,
+				      struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
+				      struct drm_atomic_state *state)
+{
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+										crtc);
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+	struct dc *dc = adev->dm.dc;
+	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
+	int ret = -EINVAL;
+
+	trace_amdgpu_dm_crtc_atomic_check(crtc_state);
+
+	dm_update_crtc_active_planes(crtc, crtc_state);
+
+	if (WARN_ON(unlikely(!dm_crtc_state->stream &&
+			amdgpu_dm_crtc_modeset_required(crtc_state, NULL, dm_crtc_state->stream)))) {
+		return ret;
+	}
+
+	/*
+	 * We require the primary plane to be enabled whenever the CRTC is, otherwise
+	 * drm_mode_cursor_universal may end up trying to enable the cursor plane while all other
+	 * planes are disabled, which is not supported by the hardware. And there is legacy
+	 * userspace which stops using the HW cursor altogether in response to the resulting EINVAL.
+	 */
+	if (crtc_state->enable &&
+		!(crtc_state->plane_mask & drm_plane_mask(crtc->primary))) {
+		DRM_DEBUG_ATOMIC("Can't enable a CRTC without enabling the primary plane\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Only allow async flips for fast updates that don't change the FB
+	 * pitch, the DCC state, rotation, etc.
+	 */
+	if (crtc_state->async_flip &&
+	    dm_crtc_state->update_type != UPDATE_TYPE_FAST) {
+		drm_dbg_atomic(crtc->dev,
+			       "[CRTC:%d:%s] async flips are only supported for fast updates\n",
+			       crtc->base.id, crtc->name);
+		return -EINVAL;
+	}
+
+	/* In some use cases, like reset, no stream is attached */
+	if (!dm_crtc_state->stream)
+		return 0;
+
+	if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK)
+		return 0;
+
+	DRM_DEBUG_ATOMIC("Failed DC stream validation\n");
+	return ret;
+}
+
+static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = {
+	.disable = dm_crtc_helper_disable,
+	.atomic_check = dm_crtc_helper_atomic_check,
+	.mode_fixup = dm_crtc_helper_mode_fixup,
+	.get_scanout_position = amdgpu_crtc_get_scanout_position,
+};
+
+int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
+			       struct drm_plane *plane,
+			       uint32_t crtc_index)
+{
+	struct amdgpu_crtc *acrtc = NULL;
+	struct drm_plane *cursor_plane;
+	bool is_dcn;
+	int res = -ENOMEM;
+
+	cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL);
+	if (!cursor_plane)
+		goto fail;
+
+	cursor_plane->type = DRM_PLANE_TYPE_CURSOR;
+	res = amdgpu_dm_plane_init(dm, cursor_plane, 0, NULL);
+
+	acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL);
+	if (!acrtc)
+		goto fail;
+
+	res = drm_crtc_init_with_planes(
+			dm->ddev,
+			&acrtc->base,
+			plane,
+			cursor_plane,
+			&amdgpu_dm_crtc_funcs, NULL);
+
+	if (res)
+		goto fail;
+
+	drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs);
+
+	/* Create (reset) the plane state */
+	if (acrtc->base.funcs->reset)
+		acrtc->base.funcs->reset(&acrtc->base);
+
+	acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size;
+	acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size;
+
+	acrtc->crtc_id = crtc_index;
+	acrtc->base.enabled = false;
+	acrtc->otg_inst = -1;
+
+	dm->adev->mode_info.crtcs[crtc_index] = acrtc;
+
+	/* Don't enable DRM CRTC degamma property for DCE since it doesn't
+	 * support programmable degamma anywhere.
+	 */
+	is_dcn = dm->adev->dm.dc->caps.color.dpp.dcn_arch;
+	drm_crtc_enable_color_mgmt(&acrtc->base, is_dcn ? MAX_COLOR_LUT_ENTRIES : 0,
+				   true, MAX_COLOR_LUT_ENTRIES);
+
+	drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES);
+
+	return 0;
+
+fail:
+	kfree(acrtc);
+	kfree(cursor_plane);
+	return res;
+}
+
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h
new file mode 100644
index 000000000..17e948753
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __AMDGPU_DM_CRTC_H__
+#define __AMDGPU_DM_CRTC_H__
+
+void amdgpu_dm_crtc_handle_vblank(struct amdgpu_crtc *acrtc);
+
+bool amdgpu_dm_crtc_modeset_required(struct drm_crtc_state *crtc_state,
+		      struct dc_stream_state *new_stream,
+		      struct dc_stream_state *old_stream);
+
+int amdgpu_dm_crtc_set_vupdate_irq(struct drm_crtc *crtc, bool enable);
+
+bool amdgpu_dm_crtc_vrr_active_irq(struct amdgpu_crtc *acrtc);
+
+bool amdgpu_dm_crtc_vrr_active(struct dm_crtc_state *dm_state);
+
+int amdgpu_dm_crtc_enable_vblank(struct drm_crtc *crtc);
+
+void amdgpu_dm_crtc_disable_vblank(struct drm_crtc *crtc);
+
+int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
+			struct drm_plane *plane,
+			uint32_t link_index);
+
+#endif
+
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
new file mode 100644
index 000000000..7c21e21bc
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -0,0 +1,3835 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <linux/string_helpers.h>
+#include <linux/uaccess.h>
+
+#include "dc.h"
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_debugfs.h"
+#include "dm_helpers.h"
+#include "dmub/dmub_srv.h"
+#include "resource.h"
+#include "dsc.h"
+#include "link_hwss.h"
+#include "dc/dc_dmub_srv.h"
+#include "link/protocols/link_dp_capability.h"
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+#include "amdgpu_dm_psr.h"
+#endif
+
+struct dmub_debugfs_trace_header {
+	uint32_t entry_count;
+	uint32_t reserved[3];
+};
+
+struct dmub_debugfs_trace_entry {
+	uint32_t trace_code;
+	uint32_t tick_count;
+	uint32_t param0;
+	uint32_t param1;
+};
+
+static const char *const mst_progress_status[] = {
+	"probe",
+	"remote_edid",
+	"allocate_new_payload",
+	"clear_allocated_payload",
+};
+
+/* parse_write_buffer_into_params - Helper function to parse debugfs write buffer into an array
+ *
+ * Function takes in attributes passed to debugfs write entry
+ * and writes into param array.
+ * The user passes max_param_num to identify maximum number of
+ * parameters that could be parsed.
+ *
+ */
+static int parse_write_buffer_into_params(char *wr_buf, uint32_t wr_buf_size,
+					  long *param, const char __user *buf,
+					  int max_param_num,
+					  uint8_t *param_nums)
+{
+	char *wr_buf_ptr = NULL;
+	uint32_t wr_buf_count = 0;
+	int r;
+	char *sub_str = NULL;
+	const char delimiter[3] = {' ', '\n', '\0'};
+	uint8_t param_index = 0;
+
+	*param_nums = 0;
+
+	wr_buf_ptr = wr_buf;
+
+	/* r is bytes not be copied */
+	if (copy_from_user(wr_buf_ptr, buf, wr_buf_size)) {
+		DRM_DEBUG_DRIVER("user data could not be read successfully\n");
+		return -EFAULT;
+	}
+
+	/* check number of parameters. isspace could not differ space and \n */
+	while ((*wr_buf_ptr != 0xa) && (wr_buf_count < wr_buf_size)) {
+		/* skip space*/
+		while (isspace(*wr_buf_ptr) && (wr_buf_count < wr_buf_size)) {
+			wr_buf_ptr++;
+			wr_buf_count++;
+			}
+
+		if (wr_buf_count == wr_buf_size)
+			break;
+
+		/* skip non-space*/
+		while ((!isspace(*wr_buf_ptr)) && (wr_buf_count < wr_buf_size)) {
+			wr_buf_ptr++;
+			wr_buf_count++;
+		}
+
+		(*param_nums)++;
+
+		if (wr_buf_count == wr_buf_size)
+			break;
+	}
+
+	if (*param_nums > max_param_num)
+		*param_nums = max_param_num;
+
+	wr_buf_ptr = wr_buf; /* reset buf pointer */
+	wr_buf_count = 0; /* number of char already checked */
+
+	while (isspace(*wr_buf_ptr) && (wr_buf_count < wr_buf_size)) {
+		wr_buf_ptr++;
+		wr_buf_count++;
+	}
+
+	while (param_index < *param_nums) {
+		/* after strsep, wr_buf_ptr will be moved to after space */
+		sub_str = strsep(&wr_buf_ptr, delimiter);
+
+		r = kstrtol(sub_str, 16, &(param[param_index]));
+
+		if (r)
+			DRM_DEBUG_DRIVER("string to int convert error code: %d\n", r);
+
+		param_index++;
+	}
+
+	return 0;
+}
+
+/* function description
+ * get/ set DP configuration: lane_count, link_rate, spread_spectrum
+ *
+ * valid lane count value: 1, 2, 4
+ * valid link rate value:
+ * 06h = 1.62Gbps per lane
+ * 0Ah = 2.7Gbps per lane
+ * 0Ch = 3.24Gbps per lane
+ * 14h = 5.4Gbps per lane
+ * 1Eh = 8.1Gbps per lane
+ *
+ * debugfs is located at /sys/kernel/debug/dri/0/DP-x/link_settings
+ *
+ * --- to get dp configuration
+ *
+ * cat /sys/kernel/debug/dri/0/DP-x/link_settings
+ *
+ * It will list current, verified, reported, preferred dp configuration.
+ * current -- for current video mode
+ * verified --- maximum configuration which pass link training
+ * reported --- DP rx report caps (DPCD register offset 0, 1 2)
+ * preferred --- user force settings
+ *
+ * --- set (or force) dp configuration
+ *
+ * echo <lane_count>  <link_rate> > link_settings
+ *
+ * for example, to force to  2 lane, 2.7GHz,
+ * echo 4 0xa > /sys/kernel/debug/dri/0/DP-x/link_settings
+ *
+ * spread_spectrum could not be changed dynamically.
+ *
+ * in case invalid lane count, link rate are force, no hw programming will be
+ * done. please check link settings after force operation to see if HW get
+ * programming.
+ *
+ * cat /sys/kernel/debug/dri/0/DP-x/link_settings
+ *
+ * check current and preferred settings.
+ *
+ */
+static ssize_t dp_link_settings_read(struct file *f, char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	const uint32_t rd_buf_size = 100;
+	uint32_t result = 0;
+	uint8_t str_len = 0;
+	int r;
+
+	if (*pos & 3 || size & 3)
+		return -EINVAL;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+	if (!rd_buf)
+		return 0;
+
+	rd_buf_ptr = rd_buf;
+
+	str_len = strlen("Current:  %d  0x%x  %d  ");
+	snprintf(rd_buf_ptr, str_len, "Current:  %d  0x%x  %d  ",
+			link->cur_link_settings.lane_count,
+			link->cur_link_settings.link_rate,
+			link->cur_link_settings.link_spread);
+	rd_buf_ptr += str_len;
+
+	str_len = strlen("Verified:  %d  0x%x  %d  ");
+	snprintf(rd_buf_ptr, str_len, "Verified:  %d  0x%x  %d  ",
+			link->verified_link_cap.lane_count,
+			link->verified_link_cap.link_rate,
+			link->verified_link_cap.link_spread);
+	rd_buf_ptr += str_len;
+
+	str_len = strlen("Reported:  %d  0x%x  %d  ");
+	snprintf(rd_buf_ptr, str_len, "Reported:  %d  0x%x  %d  ",
+			link->reported_link_cap.lane_count,
+			link->reported_link_cap.link_rate,
+			link->reported_link_cap.link_spread);
+	rd_buf_ptr += str_len;
+
+	str_len = strlen("Preferred:  %d  0x%x  %d  ");
+	snprintf(rd_buf_ptr, str_len, "Preferred:  %d  0x%x  %d\n",
+			link->preferred_link_setting.lane_count,
+			link->preferred_link_setting.link_rate,
+			link->preferred_link_setting.link_spread);
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	struct amdgpu_device *adev = drm_to_adev(connector->base.dev);
+	struct dc *dc = (struct dc *)link->dc;
+	struct dc_link_settings prefer_link_settings;
+	char *wr_buf = NULL;
+	const uint32_t wr_buf_size = 40;
+	/* 0: lane_count; 1: link_rate */
+	int max_param_num = 2;
+	uint8_t param_nums = 0;
+	long param[2];
+	bool valid_input = true;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+	if (!wr_buf)
+		return -ENOSPC;
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		return -EINVAL;
+	}
+
+	switch (param[0]) {
+	case LANE_COUNT_ONE:
+	case LANE_COUNT_TWO:
+	case LANE_COUNT_FOUR:
+		break;
+	default:
+		valid_input = false;
+		break;
+	}
+
+	switch (param[1]) {
+	case LINK_RATE_LOW:
+	case LINK_RATE_HIGH:
+	case LINK_RATE_RBR2:
+	case LINK_RATE_HIGH2:
+	case LINK_RATE_HIGH3:
+	case LINK_RATE_UHBR10:
+	case LINK_RATE_UHBR13_5:
+	case LINK_RATE_UHBR20:
+		break;
+	default:
+		valid_input = false;
+		break;
+	}
+
+	if (!valid_input) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("Invalid Input value No HW will be programmed\n");
+		mutex_lock(&adev->dm.dc_lock);
+		dc_link_set_preferred_training_settings(dc, NULL, NULL, link, false);
+		mutex_unlock(&adev->dm.dc_lock);
+		return size;
+	}
+
+	/* save user force lane_count, link_rate to preferred settings
+	 * spread spectrum will not be changed
+	 */
+	prefer_link_settings.link_spread = link->cur_link_settings.link_spread;
+	prefer_link_settings.use_link_rate_set = false;
+	prefer_link_settings.lane_count = param[0];
+	prefer_link_settings.link_rate = param[1];
+
+	mutex_lock(&adev->dm.dc_lock);
+	dc_link_set_preferred_training_settings(dc, &prefer_link_settings, NULL, link, false);
+	mutex_unlock(&adev->dm.dc_lock);
+
+	kfree(wr_buf);
+	return size;
+}
+
+static bool dp_mst_is_end_device(struct amdgpu_dm_connector *aconnector)
+{
+	bool is_end_device = false;
+	struct drm_dp_mst_topology_mgr *mgr = NULL;
+	struct drm_dp_mst_port *port = NULL;
+
+	if (aconnector->mst_root && aconnector->mst_root->mst_mgr.mst_state) {
+		mgr = &aconnector->mst_root->mst_mgr;
+		port = aconnector->mst_output_port;
+
+		drm_modeset_lock(&mgr->base.lock, NULL);
+		if (port->pdt == DP_PEER_DEVICE_SST_SINK ||
+			port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV)
+			is_end_device = true;
+		drm_modeset_unlock(&mgr->base.lock);
+	}
+
+	return is_end_device;
+}
+
+/* Change MST link setting
+ *
+ * valid lane count value: 1, 2, 4
+ * valid link rate value:
+ * 06h = 1.62Gbps per lane
+ * 0Ah = 2.7Gbps per lane
+ * 0Ch = 3.24Gbps per lane
+ * 14h = 5.4Gbps per lane
+ * 1Eh = 8.1Gbps per lane
+ * 3E8h = 10.0Gbps per lane
+ * 546h = 13.5Gbps per lane
+ * 7D0h = 20.0Gbps per lane
+ *
+ * debugfs is located at /sys/kernel/debug/dri/0/DP-x/mst_link_settings
+ *
+ * for example, to force to  2 lane, 10.0GHz,
+ * echo 2 0x3e8 > /sys/kernel/debug/dri/0/DP-x/mst_link_settings
+ *
+ * Valid input will trigger hotplug event to get new link setting applied
+ * Invalid input will trigger training setting reset
+ *
+ * The usage can be referred to link_settings entry
+ *
+ */
+static ssize_t dp_mst_link_setting(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct dc_link *link = aconnector->dc_link;
+	struct amdgpu_device *adev = drm_to_adev(aconnector->base.dev);
+	struct dc *dc = (struct dc *)link->dc;
+	struct dc_link_settings prefer_link_settings;
+	char *wr_buf = NULL;
+	const uint32_t wr_buf_size = 40;
+	/* 0: lane_count; 1: link_rate */
+	int max_param_num = 2;
+	uint8_t param_nums = 0;
+	long param[2];
+	bool valid_input = true;
+
+	if (!dp_mst_is_end_device(aconnector))
+		return -EINVAL;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+	if (!wr_buf)
+		return -ENOSPC;
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		return -EINVAL;
+	}
+
+	switch (param[0]) {
+	case LANE_COUNT_ONE:
+	case LANE_COUNT_TWO:
+	case LANE_COUNT_FOUR:
+		break;
+	default:
+		valid_input = false;
+		break;
+	}
+
+	switch (param[1]) {
+	case LINK_RATE_LOW:
+	case LINK_RATE_HIGH:
+	case LINK_RATE_RBR2:
+	case LINK_RATE_HIGH2:
+	case LINK_RATE_HIGH3:
+	case LINK_RATE_UHBR10:
+	case LINK_RATE_UHBR13_5:
+	case LINK_RATE_UHBR20:
+		break;
+	default:
+		valid_input = false;
+		break;
+	}
+
+	if (!valid_input) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("Invalid Input value No HW will be programmed\n");
+		mutex_lock(&adev->dm.dc_lock);
+		dc_link_set_preferred_training_settings(dc, NULL, NULL, link, false);
+		mutex_unlock(&adev->dm.dc_lock);
+		return -EINVAL;
+	}
+
+	/* save user force lane_count, link_rate to preferred settings
+	 * spread spectrum will not be changed
+	 */
+	prefer_link_settings.link_spread = link->cur_link_settings.link_spread;
+	prefer_link_settings.use_link_rate_set = false;
+	prefer_link_settings.lane_count = param[0];
+	prefer_link_settings.link_rate = param[1];
+
+	/* skip immediate retrain, and train to new link setting after hotplug event triggered */
+	mutex_lock(&adev->dm.dc_lock);
+	dc_link_set_preferred_training_settings(dc, &prefer_link_settings, NULL, link, true);
+	mutex_unlock(&adev->dm.dc_lock);
+
+	mutex_lock(&aconnector->base.dev->mode_config.mutex);
+	aconnector->base.force = DRM_FORCE_OFF;
+	mutex_unlock(&aconnector->base.dev->mode_config.mutex);
+	drm_kms_helper_hotplug_event(aconnector->base.dev);
+
+	msleep(100);
+
+	mutex_lock(&aconnector->base.dev->mode_config.mutex);
+	aconnector->base.force = DRM_FORCE_UNSPECIFIED;
+	mutex_unlock(&aconnector->base.dev->mode_config.mutex);
+	drm_kms_helper_hotplug_event(aconnector->base.dev);
+
+	kfree(wr_buf);
+	return size;
+}
+
+/* function: get current DP PHY settings: voltage swing, pre-emphasis,
+ * post-cursor2 (defined by VESA DP specification)
+ *
+ * valid values
+ * voltage swing: 0,1,2,3
+ * pre-emphasis : 0,1,2,3
+ * post cursor2 : 0,1,2,3
+ *
+ *
+ * how to use this debugfs
+ *
+ * debugfs is located at /sys/kernel/debug/dri/0/DP-x
+ *
+ * there will be directories, like DP-1, DP-2,DP-3, etc. for DP display
+ *
+ * To figure out which DP-x is the display for DP to be check,
+ * cd DP-x
+ * ls -ll
+ * There should be debugfs file, like link_settings, phy_settings.
+ * cat link_settings
+ * from lane_count, link_rate to figure which DP-x is for display to be worked
+ * on
+ *
+ * To get current DP PHY settings,
+ * cat phy_settings
+ *
+ * To change DP PHY settings,
+ * echo <voltage_swing> <pre-emphasis> <post_cursor2> > phy_settings
+ * for examle, to change voltage swing to 2, pre-emphasis to 3, post_cursor2 to
+ * 0,
+ * echo 2 3 0 > phy_settings
+ *
+ * To check if change be applied, get current phy settings by
+ * cat phy_settings
+ *
+ * In case invalid values are set by user, like
+ * echo 1 4 0 > phy_settings
+ *
+ * HW will NOT be programmed by these settings.
+ * cat phy_settings will show the previous valid settings.
+ */
+static ssize_t dp_phy_settings_read(struct file *f, char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	char *rd_buf = NULL;
+	const uint32_t rd_buf_size = 20;
+	uint32_t result = 0;
+	int r;
+
+	if (*pos & 3 || size & 3)
+		return -EINVAL;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+	if (!rd_buf)
+		return -EINVAL;
+
+	snprintf(rd_buf, rd_buf_size, "  %d  %d  %d\n",
+			link->cur_lane_setting[0].VOLTAGE_SWING,
+			link->cur_lane_setting[0].PRE_EMPHASIS,
+			link->cur_lane_setting[0].POST_CURSOR2);
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user((*(rd_buf + result)), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+static int dp_lttpr_status_show(struct seq_file *m, void *unused)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector =
+		to_amdgpu_dm_connector(connector);
+	struct dc_lttpr_caps caps = aconnector->dc_link->dpcd_caps.lttpr_caps;
+
+	if (connector->status != connector_status_connected)
+		return -ENODEV;
+
+	seq_printf(m, "phy repeater count: %u (raw: 0x%x)\n",
+		   dp_parse_lttpr_repeater_count(caps.phy_repeater_cnt),
+		   caps.phy_repeater_cnt);
+
+	seq_puts(m, "phy repeater mode: ");
+
+	switch (caps.mode) {
+	case DP_PHY_REPEATER_MODE_TRANSPARENT:
+		seq_puts(m, "transparent");
+		break;
+	case DP_PHY_REPEATER_MODE_NON_TRANSPARENT:
+		seq_puts(m, "non-transparent");
+		break;
+	case 0x00:
+		seq_puts(m, "non lttpr");
+		break;
+	default:
+		seq_printf(m, "read error (raw: 0x%x)", caps.mode);
+		break;
+	}
+
+	seq_puts(m, "\n");
+	return 0;
+}
+
+static ssize_t dp_phy_settings_write(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	struct dc *dc = (struct dc *)link->dc;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 40;
+	long param[3];
+	bool use_prefer_link_setting;
+	struct link_training_settings link_lane_settings;
+	int max_param_num = 3;
+	uint8_t param_nums = 0;
+	int r = 0;
+
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+	if (!wr_buf)
+		return -ENOSPC;
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		return -EINVAL;
+	}
+
+	if ((param[0] > VOLTAGE_SWING_MAX_LEVEL) ||
+			(param[1] > PRE_EMPHASIS_MAX_LEVEL) ||
+			(param[2] > POST_CURSOR2_MAX_LEVEL)) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("Invalid Input No HW will be programmed\n");
+		return size;
+	}
+
+	/* get link settings: lane count, link rate */
+	use_prefer_link_setting =
+		((link->preferred_link_setting.link_rate != LINK_RATE_UNKNOWN) &&
+		(link->test_pattern_enabled));
+
+	memset(&link_lane_settings, 0, sizeof(link_lane_settings));
+
+	if (use_prefer_link_setting) {
+		link_lane_settings.link_settings.lane_count =
+				link->preferred_link_setting.lane_count;
+		link_lane_settings.link_settings.link_rate =
+				link->preferred_link_setting.link_rate;
+		link_lane_settings.link_settings.link_spread =
+				link->preferred_link_setting.link_spread;
+	} else {
+		link_lane_settings.link_settings.lane_count =
+				link->cur_link_settings.lane_count;
+		link_lane_settings.link_settings.link_rate =
+				link->cur_link_settings.link_rate;
+		link_lane_settings.link_settings.link_spread =
+				link->cur_link_settings.link_spread;
+	}
+
+	/* apply phy settings from user */
+	for (r = 0; r < link_lane_settings.link_settings.lane_count; r++) {
+		link_lane_settings.hw_lane_settings[r].VOLTAGE_SWING =
+				(enum dc_voltage_swing) (param[0]);
+		link_lane_settings.hw_lane_settings[r].PRE_EMPHASIS =
+				(enum dc_pre_emphasis) (param[1]);
+		link_lane_settings.hw_lane_settings[r].POST_CURSOR2 =
+				(enum dc_post_cursor2) (param[2]);
+	}
+
+	/* program ASIC registers and DPCD registers */
+	dc_link_set_drive_settings(dc, &link_lane_settings, link);
+
+	kfree(wr_buf);
+	return size;
+}
+
+/* function description
+ *
+ * set PHY layer or Link layer test pattern
+ * PHY test pattern is used for PHY SI check.
+ * Link layer test will not affect PHY SI.
+ *
+ * Reset Test Pattern:
+ * 0 = DP_TEST_PATTERN_VIDEO_MODE
+ *
+ * PHY test pattern supported:
+ * 1 = DP_TEST_PATTERN_D102
+ * 2 = DP_TEST_PATTERN_SYMBOL_ERROR
+ * 3 = DP_TEST_PATTERN_PRBS7
+ * 4 = DP_TEST_PATTERN_80BIT_CUSTOM
+ * 5 = DP_TEST_PATTERN_CP2520_1
+ * 6 = DP_TEST_PATTERN_CP2520_2 = DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE
+ * 7 = DP_TEST_PATTERN_CP2520_3
+ *
+ * DP PHY Link Training Patterns
+ * 8 = DP_TEST_PATTERN_TRAINING_PATTERN1
+ * 9 = DP_TEST_PATTERN_TRAINING_PATTERN2
+ * a = DP_TEST_PATTERN_TRAINING_PATTERN3
+ * b = DP_TEST_PATTERN_TRAINING_PATTERN4
+ *
+ * DP Link Layer Test pattern
+ * c = DP_TEST_PATTERN_COLOR_SQUARES
+ * d = DP_TEST_PATTERN_COLOR_SQUARES_CEA
+ * e = DP_TEST_PATTERN_VERTICAL_BARS
+ * f = DP_TEST_PATTERN_HORIZONTAL_BARS
+ * 10= DP_TEST_PATTERN_COLOR_RAMP
+ *
+ * debugfs phy_test_pattern is located at /syskernel/debug/dri/0/DP-x
+ *
+ * --- set test pattern
+ * echo <test pattern #> > test_pattern
+ *
+ * If test pattern # is not supported, NO HW programming will be done.
+ * for DP_TEST_PATTERN_80BIT_CUSTOM, it needs extra 10 bytes of data
+ * for the user pattern. input 10 bytes data are separated by space
+ *
+ * echo 0x4 0x11 0x22 0x33 0x44 0x55 0x66 0x77 0x88 0x99 0xaa > test_pattern
+ *
+ * --- reset test pattern
+ * echo 0 > test_pattern
+ *
+ * --- HPD detection is disabled when set PHY test pattern
+ *
+ * when PHY test pattern (pattern # within [1,7]) is set, HPD pin of HW ASIC
+ * is disable. User could unplug DP display from DP connected and plug scope to
+ * check test pattern PHY SI.
+ * If there is need unplug scope and plug DP display back, do steps below:
+ * echo 0 > phy_test_pattern
+ * unplug scope
+ * plug DP display.
+ *
+ * "echo 0 > phy_test_pattern" will re-enable HPD pin again so that video sw
+ * driver could detect "unplug scope" and "plug DP display"
+ */
+static ssize_t dp_phy_test_pattern_debugfs_write(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 100;
+	long param[11] = {0x0};
+	int max_param_num = 11;
+	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_UNSUPPORTED;
+	bool disable_hpd = false;
+	bool valid_test_pattern = false;
+	uint8_t param_nums = 0;
+	/* init with default 80bit custom pattern */
+	uint8_t custom_pattern[10] = {
+			0x1f, 0x7c, 0xf0, 0xc1, 0x07,
+			0x1f, 0x7c, 0xf0, 0xc1, 0x07
+			};
+	struct dc_link_settings prefer_link_settings = {LANE_COUNT_UNKNOWN,
+			LINK_RATE_UNKNOWN, LINK_SPREAD_DISABLED};
+	struct dc_link_settings cur_link_settings = {LANE_COUNT_UNKNOWN,
+			LINK_RATE_UNKNOWN, LINK_SPREAD_DISABLED};
+	struct link_training_settings link_training_settings;
+	int i;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+	if (!wr_buf)
+		return -ENOSPC;
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		return -EINVAL;
+	}
+
+
+	test_pattern = param[0];
+
+	switch (test_pattern) {
+	case DP_TEST_PATTERN_VIDEO_MODE:
+	case DP_TEST_PATTERN_COLOR_SQUARES:
+	case DP_TEST_PATTERN_COLOR_SQUARES_CEA:
+	case DP_TEST_PATTERN_VERTICAL_BARS:
+	case DP_TEST_PATTERN_HORIZONTAL_BARS:
+	case DP_TEST_PATTERN_COLOR_RAMP:
+		valid_test_pattern = true;
+		break;
+
+	case DP_TEST_PATTERN_D102:
+	case DP_TEST_PATTERN_SYMBOL_ERROR:
+	case DP_TEST_PATTERN_PRBS7:
+	case DP_TEST_PATTERN_80BIT_CUSTOM:
+	case DP_TEST_PATTERN_HBR2_COMPLIANCE_EYE:
+	case DP_TEST_PATTERN_TRAINING_PATTERN4:
+		disable_hpd = true;
+		valid_test_pattern = true;
+		break;
+
+	default:
+		valid_test_pattern = false;
+		test_pattern = DP_TEST_PATTERN_UNSUPPORTED;
+		break;
+	}
+
+	if (!valid_test_pattern) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("Invalid Test Pattern Parameters\n");
+		return size;
+	}
+
+	if (test_pattern == DP_TEST_PATTERN_80BIT_CUSTOM) {
+		for (i = 0; i < 10; i++) {
+			if ((uint8_t) param[i + 1] != 0x0)
+				break;
+		}
+
+		if (i < 10) {
+			/* not use default value */
+			for (i = 0; i < 10; i++)
+				custom_pattern[i] = (uint8_t) param[i + 1];
+		}
+	}
+
+	/* Usage: set DP physical test pattern using debugfs with normal DP
+	 * panel. Then plug out DP panel and connect a scope to measure
+	 * For normal video mode and test pattern generated from CRCT,
+	 * they are visibile to user. So do not disable HPD.
+	 * Video Mode is also set to clear the test pattern, so enable HPD
+	 * because it might have been disabled after a test pattern was set.
+	 * AUX depends on HPD * sequence dependent, do not move!
+	 */
+	if (!disable_hpd)
+		dc_link_enable_hpd(link);
+
+	prefer_link_settings.lane_count = link->verified_link_cap.lane_count;
+	prefer_link_settings.link_rate = link->verified_link_cap.link_rate;
+	prefer_link_settings.link_spread = link->verified_link_cap.link_spread;
+
+	cur_link_settings.lane_count = link->cur_link_settings.lane_count;
+	cur_link_settings.link_rate = link->cur_link_settings.link_rate;
+	cur_link_settings.link_spread = link->cur_link_settings.link_spread;
+
+	link_training_settings.link_settings = cur_link_settings;
+
+
+	if (test_pattern != DP_TEST_PATTERN_VIDEO_MODE) {
+		if (prefer_link_settings.lane_count != LANE_COUNT_UNKNOWN &&
+			prefer_link_settings.link_rate !=  LINK_RATE_UNKNOWN &&
+			(prefer_link_settings.lane_count != cur_link_settings.lane_count ||
+			prefer_link_settings.link_rate != cur_link_settings.link_rate))
+			link_training_settings.link_settings = prefer_link_settings;
+	}
+
+	for (i = 0; i < (unsigned int)(link_training_settings.link_settings.lane_count); i++)
+		link_training_settings.hw_lane_settings[i] = link->cur_lane_setting[i];
+
+	dc_link_dp_set_test_pattern(
+		link,
+		test_pattern,
+		DP_TEST_PATTERN_COLOR_SPACE_RGB,
+		&link_training_settings,
+		custom_pattern,
+		10);
+
+	/* Usage: Set DP physical test pattern using AMDDP with normal DP panel
+	 * Then plug out DP panel and connect a scope to measure DP PHY signal.
+	 * Need disable interrupt to avoid SW driver disable DP output. This is
+	 * done after the test pattern is set.
+	 */
+	if (valid_test_pattern && disable_hpd)
+		dc_link_disable_hpd(link);
+
+	kfree(wr_buf);
+
+	return size;
+}
+
+/*
+ * Returns the DMCUB tracebuffer contents.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_tracebuffer
+ */
+static int dmub_tracebuffer_show(struct seq_file *m, void *data)
+{
+	struct amdgpu_device *adev = m->private;
+	struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info;
+	struct dmub_debugfs_trace_entry *entries;
+	uint8_t *tbuf_base;
+	uint32_t tbuf_size, max_entries, num_entries, i;
+
+	if (!fb_info)
+		return 0;
+
+	tbuf_base = (uint8_t *)fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr;
+	if (!tbuf_base)
+		return 0;
+
+	tbuf_size = fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size;
+	max_entries = (tbuf_size - sizeof(struct dmub_debugfs_trace_header)) /
+		      sizeof(struct dmub_debugfs_trace_entry);
+
+	num_entries =
+		((struct dmub_debugfs_trace_header *)tbuf_base)->entry_count;
+
+	num_entries = min(num_entries, max_entries);
+
+	entries = (struct dmub_debugfs_trace_entry
+			   *)(tbuf_base +
+			      sizeof(struct dmub_debugfs_trace_header));
+
+	for (i = 0; i < num_entries; ++i) {
+		struct dmub_debugfs_trace_entry *entry = &entries[i];
+
+		seq_printf(m,
+			   "trace_code=%u tick_count=%u param0=%u param1=%u\n",
+			   entry->trace_code, entry->tick_count, entry->param0,
+			   entry->param1);
+	}
+
+	return 0;
+}
+
+/*
+ * Returns the DMCUB firmware state contents.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dmub_fw_state
+ */
+static int dmub_fw_state_show(struct seq_file *m, void *data)
+{
+	struct amdgpu_device *adev = m->private;
+	struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info;
+	uint8_t *state_base;
+	uint32_t state_size;
+
+	if (!fb_info)
+		return 0;
+
+	state_base = (uint8_t *)fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr;
+	if (!state_base)
+		return 0;
+
+	state_size = fb_info->fb[DMUB_WINDOW_6_FW_STATE].size;
+
+	return seq_write(m, state_base, state_size);
+}
+
+/* psr_capability_show() - show eDP panel PSR capability
+ *
+ * The read function: sink_psr_capability_show
+ * Shows if sink has PSR capability or not.
+ * If yes - the PSR version is appended
+ *
+ *	cat /sys/kernel/debug/dri/0/eDP-X/psr_capability
+ *
+ * Expected output:
+ * "Sink support: no\n" - if panel doesn't support PSR
+ * "Sink support: yes [0x01]\n" - if panel supports PSR1
+ * "Driver support: no\n" - if driver doesn't support PSR
+ * "Driver support: yes [0x01]\n" - if driver supports PSR1
+ */
+static int psr_capability_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dc_link *link = aconnector->dc_link;
+
+	if (!link)
+		return -ENODEV;
+
+	if (link->type == dc_connection_none)
+		return -ENODEV;
+
+	if (!(link->connector_signal & SIGNAL_TYPE_EDP))
+		return -ENODEV;
+
+	seq_printf(m, "Sink support: %s", str_yes_no(link->dpcd_caps.psr_info.psr_version != 0));
+	if (link->dpcd_caps.psr_info.psr_version)
+		seq_printf(m, " [0x%02x]", link->dpcd_caps.psr_info.psr_version);
+	seq_puts(m, "\n");
+
+	seq_printf(m, "Driver support: %s", str_yes_no(link->psr_settings.psr_feature_enabled));
+	if (link->psr_settings.psr_version)
+		seq_printf(m, " [0x%02x]", link->psr_settings.psr_version);
+	seq_puts(m, "\n");
+
+	return 0;
+}
+
+/*
+ * Returns the current bpc for the crtc.
+ * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_bpc
+ */
+static int amdgpu_current_bpc_show(struct seq_file *m, void *data)
+{
+	struct drm_crtc *crtc = m->private;
+	struct drm_device *dev = crtc->dev;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	int res = -ENODEV;
+	unsigned int bpc;
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	switch (dm_crtc_state->stream->timing.display_color_depth) {
+	case COLOR_DEPTH_666:
+		bpc = 6;
+		break;
+	case COLOR_DEPTH_888:
+		bpc = 8;
+		break;
+	case COLOR_DEPTH_101010:
+		bpc = 10;
+		break;
+	case COLOR_DEPTH_121212:
+		bpc = 12;
+		break;
+	case COLOR_DEPTH_161616:
+		bpc = 16;
+		break;
+	default:
+		goto unlock;
+	}
+
+	seq_printf(m, "Current: %u\n", bpc);
+	res = 0;
+
+unlock:
+	drm_modeset_unlock(&crtc->mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return res;
+}
+DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
+
+/*
+ * Returns the current colorspace for the crtc.
+ * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_colorspace
+ */
+static int amdgpu_current_colorspace_show(struct seq_file *m, void *data)
+{
+	struct drm_crtc *crtc = m->private;
+	struct drm_device *dev = crtc->dev;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	int res = -ENODEV;
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	switch (dm_crtc_state->stream->output_color_space) {
+	case COLOR_SPACE_SRGB:
+		seq_puts(m, "sRGB");
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
+		seq_puts(m, "BT601_YCC");
+		break;
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
+		seq_puts(m, "BT709_YCC");
+		break;
+	case COLOR_SPACE_ADOBERGB:
+		seq_puts(m, "opRGB");
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+		seq_puts(m, "BT2020_RGB");
+		break;
+	case COLOR_SPACE_2020_YCBCR:
+		seq_puts(m, "BT2020_YCC");
+		break;
+	default:
+		goto unlock;
+	}
+	res = 0;
+
+unlock:
+	drm_modeset_unlock(&crtc->mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return res;
+}
+DEFINE_SHOW_ATTRIBUTE(amdgpu_current_colorspace);
+
+
+/*
+ * Example usage:
+ * Disable dsc passthrough, i.e.,: have dsc decoding at converver, not external RX
+ *   echo 1 /sys/kernel/debug/dri/0/DP-1/dsc_disable_passthrough
+ * Enable dsc passthrough, i.e.,: have dsc passthrough to external RX
+ *   echo 0 /sys/kernel/debug/dri/0/DP-1/dsc_disable_passthrough
+ */
+static ssize_t dp_dsc_passthrough_set(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	long param;
+	uint8_t param_nums = 0;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   &param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	aconnector->dsc_settings.dsc_force_disable_passthrough = param;
+
+	kfree(wr_buf);
+	return 0;
+}
+
+/*
+ * Returns the HDCP capability of the Display (1.4 for now).
+ *
+ * NOTE* Not all HDMI displays report their HDCP caps even when they are capable.
+ * Since its rare for a display to not be HDCP 1.4 capable, we set HDMI as always capable.
+ *
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/hdcp_sink_capability
+ *		or cat /sys/kernel/debug/dri/0/HDMI-A-1/hdcp_sink_capability
+ */
+static int hdcp_sink_capability_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	bool hdcp_cap, hdcp2_cap;
+
+	if (connector->status != connector_status_connected)
+		return -ENODEV;
+
+	seq_printf(m, "%s:%d HDCP version: ", connector->name, connector->base.id);
+
+	hdcp_cap = dc_link_is_hdcp14(aconnector->dc_link, aconnector->dc_sink->sink_signal);
+	hdcp2_cap = dc_link_is_hdcp22(aconnector->dc_link, aconnector->dc_sink->sink_signal);
+
+
+	if (hdcp_cap)
+		seq_printf(m, "%s ", "HDCP1.4");
+	if (hdcp2_cap)
+		seq_printf(m, "%s ", "HDCP2.2");
+
+	if (!hdcp_cap && !hdcp2_cap)
+		seq_printf(m, "%s ", "None");
+
+	seq_puts(m, "\n");
+
+	return 0;
+}
+
+/*
+ * Returns whether the connected display is internal and not hotpluggable.
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/internal_display
+ */
+static int internal_display_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dc_link *link = aconnector->dc_link;
+
+	seq_printf(m, "Internal: %u\n", link->is_internal_display);
+
+	return 0;
+}
+
+/* function description
+ *
+ * generic SDP message access for testing
+ *
+ * debugfs sdp_message is located at /syskernel/debug/dri/0/DP-x
+ *
+ * SDP header
+ * Hb0 : Secondary-Data Packet ID
+ * Hb1 : Secondary-Data Packet type
+ * Hb2 : Secondary-Data-packet-specific header, Byte 0
+ * Hb3 : Secondary-Data-packet-specific header, Byte 1
+ *
+ * for using custom sdp message: input 4 bytes SDP header and 32 bytes raw data
+ */
+static ssize_t dp_sdp_message_debugfs_write(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	int r;
+	uint8_t data[36];
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dm_crtc_state *acrtc_state;
+	uint32_t write_size = 36;
+
+	if (connector->base.status != connector_status_connected)
+		return -ENODEV;
+
+	if (size == 0)
+		return 0;
+
+	acrtc_state = to_dm_crtc_state(connector->base.state->crtc->state);
+
+	r = copy_from_user(data, buf, write_size);
+
+	write_size -= r;
+
+	dc_stream_send_dp_sdp(acrtc_state->stream, data, write_size);
+
+	return write_size;
+}
+
+/* function: Read link's DSC & FEC capabilities
+ *
+ *
+ * Access it with the following command (you need to specify
+ * connector like DP-1):
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dp_dsc_fec_support
+ *
+ */
+static int dp_dsc_fec_support_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct drm_modeset_acquire_ctx ctx;
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	int ret = 0;
+	bool try_again = false;
+	bool is_fec_supported = false;
+	bool is_dsc_supported = false;
+	struct dpcd_caps dpcd_caps;
+
+	drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
+	do {
+		try_again = false;
+		ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);
+		if (ret) {
+			if (ret == -EDEADLK) {
+				ret = drm_modeset_backoff(&ctx);
+				if (!ret) {
+					try_again = true;
+					continue;
+				}
+			}
+			break;
+		}
+		if (connector->status != connector_status_connected) {
+			ret = -ENODEV;
+			break;
+		}
+		dpcd_caps = aconnector->dc_link->dpcd_caps;
+		if (aconnector->mst_output_port) {
+			/* aconnector sets dsc_aux during get_modes call
+			 * if MST connector has it means it can either
+			 * enable DSC on the sink device or on MST branch
+			 * its connected to.
+			 */
+			if (aconnector->dsc_aux) {
+				is_fec_supported = true;
+				is_dsc_supported = true;
+			}
+		} else {
+			is_fec_supported = dpcd_caps.fec_cap.raw & 0x1;
+			is_dsc_supported = dpcd_caps.dsc_caps.dsc_basic_caps.raw[0] & 0x1;
+		}
+	} while (try_again);
+
+	drm_modeset_drop_locks(&ctx);
+	drm_modeset_acquire_fini(&ctx);
+
+	seq_printf(m, "FEC_Sink_Support: %s\n", str_yes_no(is_fec_supported));
+	seq_printf(m, "DSC_Sink_Support: %s\n", str_yes_no(is_dsc_supported));
+
+	return ret;
+}
+
+/* function: Trigger virtual HPD redetection on connector
+ *
+ * This function will perform link rediscovery, link disable
+ * and enable, and dm connector state update.
+ *
+ * Retrigger HPD on an existing connector by echoing 1 into
+ * its respectful "trigger_hotplug" debugfs entry:
+ *
+ *	echo 1 > /sys/kernel/debug/dri/0/DP-X/trigger_hotplug
+ *
+ * This function can perform HPD unplug:
+ *
+ *	echo 0 > /sys/kernel/debug/dri/0/DP-X/trigger_hotplug
+ *
+ */
+static ssize_t trigger_hotplug(struct file *f, const char __user *buf,
+							size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct dc_link *link = NULL;
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	enum dc_connection_type new_connection_type = dc_connection_none;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	long param[1] = {0};
+	uint8_t param_nums = 0;
+	bool ret = false;
+
+	if (!aconnector || !aconnector->dc_link)
+		return -EINVAL;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+						(long *)param, buf,
+						max_param_num,
+						&param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	kfree(wr_buf);
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&aconnector->hpd_lock);
+
+	/* Don't support for mst end device*/
+	if (aconnector->mst_root) {
+		mutex_unlock(&aconnector->hpd_lock);
+		return -EINVAL;
+	}
+
+	if (param[0] == 1) {
+
+		if (!dc_link_detect_connection_type(aconnector->dc_link, &new_connection_type) &&
+			new_connection_type != dc_connection_none)
+			goto unlock;
+
+		mutex_lock(&adev->dm.dc_lock);
+		ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
+		mutex_unlock(&adev->dm.dc_lock);
+
+		if (!ret)
+			goto unlock;
+
+		amdgpu_dm_update_connector_after_detect(aconnector);
+
+		drm_modeset_lock_all(dev);
+		dm_restore_drm_connector_state(dev, connector);
+		drm_modeset_unlock_all(dev);
+
+		drm_kms_helper_connector_hotplug_event(connector);
+	} else if (param[0] == 0) {
+		if (!aconnector->dc_link)
+			goto unlock;
+
+		link = aconnector->dc_link;
+
+		if (link->local_sink) {
+			dc_sink_release(link->local_sink);
+			link->local_sink = NULL;
+		}
+
+		link->dpcd_sink_count = 0;
+		link->type = dc_connection_none;
+		link->dongle_max_pix_clk = 0;
+
+		amdgpu_dm_update_connector_after_detect(aconnector);
+
+		/* If the aconnector is the root node in mst topology */
+		if (aconnector->mst_mgr.mst_state == true)
+			dc_link_reset_cur_dp_mst_topology(link);
+
+		drm_modeset_lock_all(dev);
+		dm_restore_drm_connector_state(dev, connector);
+		drm_modeset_unlock_all(dev);
+
+		drm_kms_helper_connector_hotplug_event(connector);
+	}
+
+unlock:
+	mutex_unlock(&aconnector->hpd_lock);
+
+	return size;
+}
+
+/* function: read DSC status on the connector
+ *
+ * The read function: dp_dsc_clock_en_read
+ * returns current status of DSC clock on the connector.
+ * The return is a boolean flag: 1 or 0.
+ *
+ * Access it with the following command (you need to specify
+ * connector like DP-1):
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_clock_en
+ *
+ * Expected output:
+ * 1 - means that DSC is currently enabled
+ * 0 - means that DSC is disabled
+ */
+static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 10;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_clock_en);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: write force DSC on the connector
+ *
+ * The write function: dp_dsc_clock_en_write
+ * enables to force DSC on the connector.
+ * User can write to either force enable or force disable DSC
+ * on the next modeset or set it to driver default
+ *
+ * Accepted inputs:
+ * 0 - default DSC enablement policy
+ * 1 - force enable DSC on the connector
+ * 2 - force disable DSC on the connector (might cause fail in atomic_check)
+ *
+ * Writing DSC settings is done with the following command:
+ * - To force enable DSC (you need to specify
+ * connector like DP-1):
+ *
+ *	echo 0x1 > /sys/kernel/debug/dri/0/DP-X/dsc_clock_en
+ *
+ * - To return to default state set the flag to zero and
+ * let driver deal with DSC automatically
+ * (you need to specify connector like DP-1):
+ *
+ *	echo 0x0 > /sys/kernel/debug/dri/0/DP-X/dsc_clock_en
+ *
+ */
+static ssize_t dp_dsc_clock_en_write(struct file *f, const char __user *buf,
+				     size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct drm_crtc *crtc = NULL;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	struct pipe_ctx *pipe_ctx;
+	int i;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	long param[1] = {0};
+	uint8_t param_nums = 0;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					    (long *)param, buf,
+					    max_param_num,
+					    &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	if (!pipe_ctx->stream)
+		goto done;
+
+	// Get CRTC state
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	crtc = connector->state->crtc;
+	if (crtc == NULL)
+		goto unlock;
+
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	if (param[0] == 1)
+		aconnector->dsc_settings.dsc_force_enable = DSC_CLK_FORCE_ENABLE;
+	else if (param[0] == 2)
+		aconnector->dsc_settings.dsc_force_enable = DSC_CLK_FORCE_DISABLE;
+	else
+		aconnector->dsc_settings.dsc_force_enable = DSC_CLK_FORCE_DEFAULT;
+
+	dm_crtc_state->dsc_force_changed = true;
+
+unlock:
+	if (crtc)
+		drm_modeset_unlock(&crtc->mutex);
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+done:
+	kfree(wr_buf);
+	return size;
+}
+
+/* function: read DSC slice width parameter on the connector
+ *
+ * The read function: dp_dsc_slice_width_read
+ * returns dsc slice width used in the current configuration
+ * The return is an integer: 0 or other positive number
+ *
+ * Access the status with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_slice_width
+ *
+ * 0 - means that DSC is disabled
+ *
+ * Any other number more than zero represents the
+ * slice width currently used by DSC in pixels
+ *
+ */
+static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_slice_width);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: write DSC slice width parameter
+ *
+ * The write function: dp_dsc_slice_width_write
+ * overwrites automatically generated DSC configuration
+ * of slice width.
+ *
+ * The user has to write the slice width divisible by the
+ * picture width.
+ *
+ * Also the user has to write width in hexidecimal
+ * rather than in decimal.
+ *
+ * Writing DSC settings is done with the following command:
+ * - To force overwrite slice width: (example sets to 1920 pixels)
+ *
+ *	echo 0x780 > /sys/kernel/debug/dri/0/DP-X/dsc_slice_width
+ *
+ *  - To stop overwriting and let driver find the optimal size,
+ * set the width to zero:
+ *
+ *	echo 0x0 > /sys/kernel/debug/dri/0/DP-X/dsc_slice_width
+ *
+ */
+static ssize_t dp_dsc_slice_width_write(struct file *f, const char __user *buf,
+				     size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct pipe_ctx *pipe_ctx;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct drm_crtc *crtc = NULL;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	int i;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	long param[1] = {0};
+	uint8_t param_nums = 0;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					    (long *)param, buf,
+					    max_param_num,
+					    &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	if (!pipe_ctx->stream)
+		goto done;
+
+	// Safely get CRTC state
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	crtc = connector->state->crtc;
+	if (crtc == NULL)
+		goto unlock;
+
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	if (param[0] > 0)
+		aconnector->dsc_settings.dsc_num_slices_h = DIV_ROUND_UP(
+					pipe_ctx->stream->timing.h_addressable,
+					param[0]);
+	else
+		aconnector->dsc_settings.dsc_num_slices_h = 0;
+
+	dm_crtc_state->dsc_force_changed = true;
+
+unlock:
+	if (crtc)
+		drm_modeset_unlock(&crtc->mutex);
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+done:
+	kfree(wr_buf);
+	return size;
+}
+
+/* function: read DSC slice height parameter on the connector
+ *
+ * The read function: dp_dsc_slice_height_read
+ * returns dsc slice height used in the current configuration
+ * The return is an integer: 0 or other positive number
+ *
+ * Access the status with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_slice_height
+ *
+ * 0 - means that DSC is disabled
+ *
+ * Any other number more than zero represents the
+ * slice height currently used by DSC in pixels
+ *
+ */
+static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_slice_height);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: write DSC slice height parameter
+ *
+ * The write function: dp_dsc_slice_height_write
+ * overwrites automatically generated DSC configuration
+ * of slice height.
+ *
+ * The user has to write the slice height divisible by the
+ * picture height.
+ *
+ * Also the user has to write height in hexidecimal
+ * rather than in decimal.
+ *
+ * Writing DSC settings is done with the following command:
+ * - To force overwrite slice height (example sets to 128 pixels):
+ *
+ *	echo 0x80 > /sys/kernel/debug/dri/0/DP-X/dsc_slice_height
+ *
+ *  - To stop overwriting and let driver find the optimal size,
+ * set the height to zero:
+ *
+ *	echo 0x0 > /sys/kernel/debug/dri/0/DP-X/dsc_slice_height
+ *
+ */
+static ssize_t dp_dsc_slice_height_write(struct file *f, const char __user *buf,
+				     size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct drm_crtc *crtc = NULL;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	struct pipe_ctx *pipe_ctx;
+	int i;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	uint8_t param_nums = 0;
+	long param[1] = {0};
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					    (long *)param, buf,
+					    max_param_num,
+					    &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	if (!pipe_ctx->stream)
+		goto done;
+
+	// Get CRTC state
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	crtc = connector->state->crtc;
+	if (crtc == NULL)
+		goto unlock;
+
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	if (param[0] > 0)
+		aconnector->dsc_settings.dsc_num_slices_v = DIV_ROUND_UP(
+					pipe_ctx->stream->timing.v_addressable,
+					param[0]);
+	else
+		aconnector->dsc_settings.dsc_num_slices_v = 0;
+
+	dm_crtc_state->dsc_force_changed = true;
+
+unlock:
+	if (crtc)
+		drm_modeset_unlock(&crtc->mutex);
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+done:
+	kfree(wr_buf);
+	return size;
+}
+
+/* function: read DSC target rate on the connector in bits per pixel
+ *
+ * The read function: dp_dsc_bits_per_pixel_read
+ * returns target rate of compression in bits per pixel
+ * The return is an integer: 0 or other positive integer
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_bits_per_pixel
+ *
+ *  0 - means that DSC is disabled
+ */
+static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_bits_per_pixel);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: write DSC target rate in bits per pixel
+ *
+ * The write function: dp_dsc_bits_per_pixel_write
+ * overwrites automatically generated DSC configuration
+ * of DSC target bit rate.
+ *
+ * Also the user has to write bpp in hexidecimal
+ * rather than in decimal.
+ *
+ * Writing DSC settings is done with the following command:
+ * - To force overwrite rate (example sets to 256 bpp x 1/16):
+ *
+ *	echo 0x100 > /sys/kernel/debug/dri/0/DP-X/dsc_bits_per_pixel
+ *
+ *  - To stop overwriting and let driver find the optimal rate,
+ * set the rate to zero:
+ *
+ *	echo 0x0 > /sys/kernel/debug/dri/0/DP-X/dsc_bits_per_pixel
+ *
+ */
+static ssize_t dp_dsc_bits_per_pixel_write(struct file *f, const char __user *buf,
+				     size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct drm_crtc *crtc = NULL;
+	struct dm_crtc_state *dm_crtc_state = NULL;
+	struct pipe_ctx *pipe_ctx;
+	int i;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	uint8_t param_nums = 0;
+	long param[1] = {0};
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					    (long *)param, buf,
+					    max_param_num,
+					    &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	if (!pipe_ctx->stream)
+		goto done;
+
+	// Get CRTC state
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	crtc = connector->state->crtc;
+	if (crtc == NULL)
+		goto unlock;
+
+	drm_modeset_lock(&crtc->mutex, NULL);
+	if (crtc->state == NULL)
+		goto unlock;
+
+	dm_crtc_state = to_dm_crtc_state(crtc->state);
+	if (dm_crtc_state->stream == NULL)
+		goto unlock;
+
+	aconnector->dsc_settings.dsc_bits_per_pixel = param[0];
+
+	dm_crtc_state->dsc_force_changed = true;
+
+unlock:
+	if (crtc)
+		drm_modeset_unlock(&crtc->mutex);
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+done:
+	kfree(wr_buf);
+	return size;
+}
+
+/* function: read DSC picture width parameter on the connector
+ *
+ * The read function: dp_dsc_pic_width_read
+ * returns dsc picture width used in the current configuration
+ * It is the same as h_addressable of the current
+ * display's timing
+ * The return is an integer: 0 or other positive integer
+ * If 0 then DSC is disabled.
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_pic_width
+ *
+ * 0 - means that DSC is disabled
+ */
+static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_pic_width);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_pic_height);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: read DSC chunk size parameter on the connector
+ *
+ * The read function: dp_dsc_chunk_size_read
+ * returns dsc chunk size set in the current configuration
+ * The value is calculated automatically by DSC code
+ * and depends on slice parameters and bpp target rate
+ * The return is an integer: 0 or other positive integer
+ * If 0 then DSC is disabled.
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_chunk_size
+ *
+ * 0 - means that DSC is disabled
+ */
+static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_chunk_size);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+/* function: read DSC slice bpg offset on the connector
+ *
+ * The read function: dp_dsc_slice_bpg_offset_read
+ * returns dsc bpg slice offset set in the current configuration
+ * The value is calculated automatically by DSC code
+ * and depends on slice parameters and bpp target rate
+ * The return is an integer: 0 or other positive integer
+ * If 0 then DSC is disabled.
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/dsc_slice_bpg_offset
+ *
+ * 0 - means that DSC is disabled
+ */
+static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf,
+				    size_t size, loff_t *pos)
+{
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct display_stream_compressor *dsc;
+	struct dcn_dsc_state dsc_state = {0};
+	const uint32_t rd_buf_size = 100;
+	struct pipe_ctx *pipe_ctx;
+	ssize_t result = 0;
+	int i, r, str_len = 30;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	rd_buf_ptr = rd_buf;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		pipe_ctx = &aconnector->dc_link->dc->current_state->res_ctx.pipe_ctx[i];
+		if (pipe_ctx->stream &&
+		    pipe_ctx->stream->link == aconnector->dc_link)
+			break;
+	}
+
+	dsc = pipe_ctx->stream_res.dsc;
+	if (dsc)
+		dsc->funcs->dsc_read_state(dsc, &dsc_state);
+
+	snprintf(rd_buf_ptr, str_len,
+		"%d\n",
+		dsc_state.dsc_slice_bpg_offset);
+	rd_buf_ptr += str_len;
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+
+/*
+ * function description: Read max_requested_bpc property from the connector
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/max_bpc
+ *
+ */
+static ssize_t dp_max_bpc_read(struct file *f, char __user *buf,
+		size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct dm_connector_state *state;
+	ssize_t result = 0;
+	char *rd_buf = NULL;
+	char *rd_buf_ptr = NULL;
+	const uint32_t rd_buf_size = 10;
+	int r;
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!rd_buf)
+		return -ENOMEM;
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	state = to_dm_connector_state(connector->state);
+
+	rd_buf_ptr = rd_buf;
+	snprintf(rd_buf_ptr, rd_buf_size,
+		"%u\n",
+		state->base.max_requested_bpc);
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			result = r; /* r = -EFAULT */
+			goto unlock;
+		}
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+unlock:
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+	kfree(rd_buf);
+	return result;
+}
+
+
+/*
+ * function description: Set max_requested_bpc property on the connector
+ *
+ * This function will not force the input BPC on connector, it will only
+ * change the max value. This is equivalent to setting max_bpc through
+ * xrandr.
+ *
+ * The BPC value written must be >= 6 and <= 16. Values outside of this
+ * range will result in errors.
+ *
+ * BPC values:
+ *	0x6 - 6 BPC
+ *	0x8 - 8 BPC
+ *	0xa - 10 BPC
+ *	0xc - 12 BPC
+ *	0x10 - 16 BPC
+ *
+ * Write the max_bpc in the following way:
+ *
+ * echo 0x6 > /sys/kernel/debug/dri/0/DP-X/max_bpc
+ *
+ */
+static ssize_t dp_max_bpc_write(struct file *f, const char __user *buf,
+				     size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *aconnector = file_inode(f)->i_private;
+	struct drm_connector *connector = &aconnector->base;
+	struct dm_connector_state *state;
+	struct drm_device *dev = connector->dev;
+	char *wr_buf = NULL;
+	uint32_t wr_buf_size = 42;
+	int max_param_num = 1;
+	long param[1] = {0};
+	uint8_t param_nums = 0;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+
+	if (!wr_buf) {
+		DRM_DEBUG_DRIVER("no memory to allocate write buffer\n");
+		return -ENOSPC;
+	}
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		DRM_DEBUG_DRIVER("user data not be read\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param[0] < 6 || param[0] > 16) {
+		DRM_DEBUG_DRIVER("bad max_bpc value\n");
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+	if (connector->state == NULL)
+		goto unlock;
+
+	state = to_dm_connector_state(connector->state);
+	state->base.max_requested_bpc = param[0];
+unlock:
+	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	mutex_unlock(&dev->mode_config.mutex);
+
+	kfree(wr_buf);
+	return size;
+}
+
+/*
+ * Backlight at this moment.  Read only.
+ * As written to display, taking ABM and backlight lut into account.
+ * Ranges from 0x0 to 0x10000 (= 100% PWM)
+ *
+ * Example usage: cat /sys/kernel/debug/dri/0/eDP-1/current_backlight
+ */
+static int current_backlight_show(struct seq_file *m, void *unused)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(m->private);
+	struct dc_link *link = aconnector->dc_link;
+	unsigned int backlight;
+
+	backlight = dc_link_get_backlight_level(link);
+	seq_printf(m, "0x%x\n", backlight);
+
+	return 0;
+}
+
+/*
+ * Backlight value that is being approached.  Read only.
+ * As written to display, taking ABM and backlight lut into account.
+ * Ranges from 0x0 to 0x10000 (= 100% PWM)
+ *
+ * Example usage: cat /sys/kernel/debug/dri/0/eDP-1/target_backlight
+ */
+static int target_backlight_show(struct seq_file *m, void *unused)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(m->private);
+	struct dc_link *link = aconnector->dc_link;
+	unsigned int backlight;
+
+	backlight = dc_link_get_target_backlight_pwm(link);
+	seq_printf(m, "0x%x\n", backlight);
+
+	return 0;
+}
+
+/*
+ * function description: Determine if the connector is mst connector
+ *
+ * This function helps to determine whether a connector is a mst connector.
+ * - "root" stands for the root connector of the topology
+ * - "branch" stands for branch device of the topology
+ * - "end" stands for leaf node connector of the topology
+ * - "no" stands for the connector is not a device of a mst topology
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/is_mst_connector
+ *
+ */
+static int dp_is_mst_connector_show(struct seq_file *m, void *unused)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct drm_dp_mst_topology_mgr *mgr = NULL;
+	struct drm_dp_mst_port *port = NULL;
+	char *role = NULL;
+
+	mutex_lock(&aconnector->hpd_lock);
+
+	if (aconnector->mst_mgr.mst_state) {
+		role = "root";
+	} else if (aconnector->mst_root &&
+		aconnector->mst_root->mst_mgr.mst_state) {
+
+		role = "end";
+
+		mgr = &aconnector->mst_root->mst_mgr;
+		port = aconnector->mst_output_port;
+
+		drm_modeset_lock(&mgr->base.lock, NULL);
+		if (port->pdt == DP_PEER_DEVICE_MST_BRANCHING &&
+			port->mcs)
+			role = "branch";
+		drm_modeset_unlock(&mgr->base.lock);
+
+	} else {
+		role = "no";
+	}
+
+	seq_printf(m, "%s\n", role);
+
+	mutex_unlock(&aconnector->hpd_lock);
+
+	return 0;
+}
+
+/*
+ * function description: Read out the mst progress status
+ *
+ * This function helps to determine the mst progress status of
+ * a mst connector.
+ *
+ * Access it with the following command:
+ *
+ *	cat /sys/kernel/debug/dri/0/DP-X/mst_progress_status
+ *
+ */
+static int dp_mst_progress_status_show(struct seq_file *m, void *unused)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct amdgpu_device *adev = drm_to_adev(connector->dev);
+	int i;
+
+	mutex_lock(&aconnector->hpd_lock);
+	mutex_lock(&adev->dm.dc_lock);
+
+	if (aconnector->mst_status == MST_STATUS_DEFAULT) {
+		seq_puts(m, "disabled\n");
+	} else {
+		for (i = 0; i < sizeof(mst_progress_status)/sizeof(char *); i++)
+			seq_printf(m, "%s:%s\n",
+				mst_progress_status[i],
+				aconnector->mst_status & BIT(i) ? "done" : "not_done");
+	}
+
+	mutex_unlock(&adev->dm.dc_lock);
+	mutex_unlock(&aconnector->hpd_lock);
+
+	return 0;
+}
+
+/*
+ * Reports whether the connected display is a USB4 DPIA tunneled display
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-8/is_dpia_link
+ */
+static int is_dpia_link_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct dc_link *link = aconnector->dc_link;
+
+	if (connector->status != connector_status_connected)
+		return -ENODEV;
+
+	seq_printf(m, "%s\n", (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) ? "yes" :
+				(link->ep_type == DISPLAY_ENDPOINT_PHY) ? "no" : "unknown");
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(dp_dsc_fec_support);
+DEFINE_SHOW_ATTRIBUTE(dmub_fw_state);
+DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer);
+DEFINE_SHOW_ATTRIBUTE(dp_lttpr_status);
+DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability);
+DEFINE_SHOW_ATTRIBUTE(internal_display);
+DEFINE_SHOW_ATTRIBUTE(psr_capability);
+DEFINE_SHOW_ATTRIBUTE(dp_is_mst_connector);
+DEFINE_SHOW_ATTRIBUTE(dp_mst_progress_status);
+DEFINE_SHOW_ATTRIBUTE(is_dpia_link);
+
+static const struct file_operations dp_dsc_clock_en_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_clock_en_read,
+	.write = dp_dsc_clock_en_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_slice_width_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_slice_width_read,
+	.write = dp_dsc_slice_width_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_slice_height_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_slice_height_read,
+	.write = dp_dsc_slice_height_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_bits_per_pixel_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_bits_per_pixel_read,
+	.write = dp_dsc_bits_per_pixel_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_pic_width_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_pic_width_read,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_pic_height_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_pic_height_read,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_chunk_size_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_chunk_size_read,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_slice_bpg_offset_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_dsc_slice_bpg_offset_read,
+	.llseek = default_llseek
+};
+
+static const struct file_operations trigger_hotplug_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.write = trigger_hotplug,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_link_settings_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_link_settings_read,
+	.write = dp_link_settings_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_phy_settings_debugfs_fop = {
+	.owner = THIS_MODULE,
+	.read = dp_phy_settings_read,
+	.write = dp_phy_settings_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_phy_test_pattern_fops = {
+	.owner = THIS_MODULE,
+	.write = dp_phy_test_pattern_debugfs_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations sdp_message_fops = {
+	.owner = THIS_MODULE,
+	.write = dp_sdp_message_debugfs_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_max_bpc_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.read = dp_max_bpc_read,
+	.write = dp_max_bpc_write,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_dsc_disable_passthrough_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.write = dp_dsc_passthrough_set,
+	.llseek = default_llseek
+};
+
+static const struct file_operations dp_mst_link_settings_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.write = dp_mst_link_setting,
+	.llseek = default_llseek
+};
+
+static const struct {
+	char *name;
+	const struct file_operations *fops;
+} dp_debugfs_entries[] = {
+		{"link_settings", &dp_link_settings_debugfs_fops},
+		{"phy_settings", &dp_phy_settings_debugfs_fop},
+		{"lttpr_status", &dp_lttpr_status_fops},
+		{"test_pattern", &dp_phy_test_pattern_fops},
+		{"hdcp_sink_capability", &hdcp_sink_capability_fops},
+		{"sdp_message", &sdp_message_fops},
+		{"dsc_clock_en", &dp_dsc_clock_en_debugfs_fops},
+		{"dsc_slice_width", &dp_dsc_slice_width_debugfs_fops},
+		{"dsc_slice_height", &dp_dsc_slice_height_debugfs_fops},
+		{"dsc_bits_per_pixel", &dp_dsc_bits_per_pixel_debugfs_fops},
+		{"dsc_pic_width", &dp_dsc_pic_width_debugfs_fops},
+		{"dsc_pic_height", &dp_dsc_pic_height_debugfs_fops},
+		{"dsc_chunk_size", &dp_dsc_chunk_size_debugfs_fops},
+		{"dsc_slice_bpg", &dp_dsc_slice_bpg_offset_debugfs_fops},
+		{"dp_dsc_fec_support", &dp_dsc_fec_support_fops},
+		{"max_bpc", &dp_max_bpc_debugfs_fops},
+		{"dsc_disable_passthrough", &dp_dsc_disable_passthrough_debugfs_fops},
+		{"is_mst_connector", &dp_is_mst_connector_fops},
+		{"mst_progress_status", &dp_mst_progress_status_fops},
+		{"is_dpia_link", &is_dpia_link_fops},
+		{"mst_link_settings", &dp_mst_link_settings_debugfs_fops}
+};
+
+static const struct {
+	char *name;
+	const struct file_operations *fops;
+} hdmi_debugfs_entries[] = {
+		{"hdcp_sink_capability", &hdcp_sink_capability_fops}
+};
+
+/*
+ * Force YUV420 output if available from the given mode
+ */
+static int force_yuv420_output_set(void *data, u64 val)
+{
+	struct amdgpu_dm_connector *connector = data;
+
+	connector->force_yuv420_output = (bool)val;
+
+	return 0;
+}
+
+/*
+ * Check if YUV420 is forced when available from the given mode
+ */
+static int force_yuv420_output_get(void *data, u64 *val)
+{
+	struct amdgpu_dm_connector *connector = data;
+
+	*val = connector->force_yuv420_output;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(force_yuv420_output_fops, force_yuv420_output_get,
+			 force_yuv420_output_set, "%llu\n");
+
+/*
+ *  Read PSR state
+ */
+static int psr_get(void *data, u64 *val)
+{
+	struct amdgpu_dm_connector *connector = data;
+	struct dc_link *link = connector->dc_link;
+	enum dc_psr_state state = PSR_STATE0;
+
+	dc_link_get_psr_state(link, &state);
+
+	*val = state;
+
+	return 0;
+}
+
+/*
+ *  Read PSR state residency
+ */
+static int psr_read_residency(void *data, u64 *val)
+{
+	struct amdgpu_dm_connector *connector = data;
+	struct dc_link *link = connector->dc_link;
+	u32 residency;
+
+	link->dc->link_srv->edp_get_psr_residency(link, &residency);
+
+	*val = (u64)residency;
+
+	return 0;
+}
+
+/* read allow_edp_hotplug_detection */
+static int allow_edp_hotplug_detection_get(void *data, u64 *val)
+{
+	struct amdgpu_dm_connector *aconnector = data;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	*val = adev->dm.dc->config.allow_edp_hotplug_detection;
+
+	return 0;
+}
+
+/* set allow_edp_hotplug_detection */
+static int allow_edp_hotplug_detection_set(void *data, u64 val)
+{
+	struct amdgpu_dm_connector *aconnector = data;
+	struct drm_connector *connector = &aconnector->base;
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	adev->dm.dc->config.allow_edp_hotplug_detection = (uint32_t) val;
+
+	return 0;
+}
+
+/*
+ * Set dmcub trace event IRQ enable or disable.
+ * Usage to enable dmcub trace event IRQ: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dmcub_trace_event_en
+ * Usage to disable dmcub trace event IRQ: echo 0 > /sys/kernel/debug/dri/0/amdgpu_dm_dmcub_trace_event_en
+ */
+static int dmcub_trace_event_state_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	if (val == 1 || val == 0) {
+		dc_dmub_trace_event_control(adev->dm.dc, val);
+		adev->dm.dmcub_trace_event_en = (bool)val;
+	} else
+		return 0;
+
+	return 0;
+}
+
+/*
+ * The interface doesn't need get function, so it will return the
+ * value of zero
+ * Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dmcub_trace_event_en
+ */
+static int dmcub_trace_event_state_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.dmcub_trace_event_en;
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(dmcub_trace_event_state_fops, dmcub_trace_event_state_get,
+			 dmcub_trace_event_state_set, "%llu\n");
+
+DEFINE_DEBUGFS_ATTRIBUTE(psr_fops, psr_get, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(psr_residency_fops, psr_read_residency, NULL,
+			 "%llu\n");
+
+DEFINE_DEBUGFS_ATTRIBUTE(allow_edp_hotplug_detection_fops,
+			allow_edp_hotplug_detection_get,
+			allow_edp_hotplug_detection_set, "%llu\n");
+
+DEFINE_SHOW_ATTRIBUTE(current_backlight);
+DEFINE_SHOW_ATTRIBUTE(target_backlight);
+
+static const struct {
+	char *name;
+	const struct file_operations *fops;
+} connector_debugfs_entries[] = {
+		{"force_yuv420_output", &force_yuv420_output_fops},
+		{"trigger_hotplug", &trigger_hotplug_debugfs_fops},
+		{"internal_display", &internal_display_fops}
+};
+
+/*
+ * Returns supported customized link rates by this eDP panel.
+ * Example usage: cat /sys/kernel/debug/dri/0/eDP-x/ilr_setting
+ */
+static int edp_ilr_show(struct seq_file *m, void *unused)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(m->private);
+	struct dc_link *link = aconnector->dc_link;
+	uint8_t supported_link_rates[16];
+	uint32_t link_rate_in_khz;
+	uint32_t entry = 0;
+	uint8_t dpcd_rev;
+
+	memset(supported_link_rates, 0, sizeof(supported_link_rates));
+	dm_helpers_dp_read_dpcd(link->ctx, link, DP_SUPPORTED_LINK_RATES,
+		supported_link_rates, sizeof(supported_link_rates));
+
+	dpcd_rev = link->dpcd_caps.dpcd_rev.raw;
+
+	if (dpcd_rev >= DP_DPCD_REV_13 &&
+		(supported_link_rates[entry+1] != 0 || supported_link_rates[entry] != 0)) {
+
+		for (entry = 0; entry < 16; entry += 2) {
+			link_rate_in_khz = (supported_link_rates[entry+1] * 0x100 +
+										supported_link_rates[entry]) * 200;
+			seq_printf(m, "[%d] %d kHz\n", entry/2, link_rate_in_khz);
+		}
+	} else {
+		seq_puts(m, "ILR is not supported by this eDP panel.\n");
+	}
+
+	return 0;
+}
+
+/*
+ * Set supported customized link rate to eDP panel.
+ *
+ * echo <lane_count>  <link_rate option> > ilr_setting
+ *
+ * for example, supported ILR : [0] 1620000 kHz [1] 2160000 kHz [2] 2430000 kHz ...
+ * echo 4 1 > /sys/kernel/debug/dri/0/eDP-x/ilr_setting
+ * to set 4 lanes and 2.16 GHz
+ */
+static ssize_t edp_ilr_write(struct file *f, const char __user *buf,
+				 size_t size, loff_t *pos)
+{
+	struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
+	struct dc_link *link = connector->dc_link;
+	struct amdgpu_device *adev = drm_to_adev(connector->base.dev);
+	struct dc *dc = (struct dc *)link->dc;
+	struct dc_link_settings prefer_link_settings;
+	char *wr_buf = NULL;
+	const uint32_t wr_buf_size = 40;
+	/* 0: lane_count; 1: link_rate */
+	int max_param_num = 2;
+	uint8_t param_nums = 0;
+	long param[2];
+	bool valid_input = true;
+
+	if (size == 0)
+		return -EINVAL;
+
+	wr_buf = kcalloc(wr_buf_size, sizeof(char), GFP_KERNEL);
+	if (!wr_buf)
+		return -ENOMEM;
+
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
+					   (long *)param, buf,
+					   max_param_num,
+					   &param_nums)) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	if (param_nums <= 0) {
+		kfree(wr_buf);
+		return -EINVAL;
+	}
+
+	switch (param[0]) {
+	case LANE_COUNT_ONE:
+	case LANE_COUNT_TWO:
+	case LANE_COUNT_FOUR:
+		break;
+	default:
+		valid_input = false;
+		break;
+	}
+
+	if (param[1] >= link->dpcd_caps.edp_supported_link_rates_count)
+		valid_input = false;
+
+	if (!valid_input) {
+		kfree(wr_buf);
+		DRM_DEBUG_DRIVER("Invalid Input value. No HW will be programmed\n");
+		prefer_link_settings.use_link_rate_set = false;
+		mutex_lock(&adev->dm.dc_lock);
+		dc_link_set_preferred_training_settings(dc, NULL, NULL, link, false);
+		mutex_unlock(&adev->dm.dc_lock);
+		return size;
+	}
+
+	/* save user force lane_count, link_rate to preferred settings
+	 * spread spectrum will not be changed
+	 */
+	prefer_link_settings.link_spread = link->cur_link_settings.link_spread;
+	prefer_link_settings.lane_count = param[0];
+	prefer_link_settings.use_link_rate_set = true;
+	prefer_link_settings.link_rate_set = param[1];
+	prefer_link_settings.link_rate = link->dpcd_caps.edp_supported_link_rates[param[1]];
+
+	mutex_lock(&adev->dm.dc_lock);
+	dc_link_set_preferred_training_settings(dc, &prefer_link_settings,
+						NULL, link, false);
+	mutex_unlock(&adev->dm.dc_lock);
+
+	kfree(wr_buf);
+	return size;
+}
+
+static int edp_ilr_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, edp_ilr_show, inode->i_private);
+}
+
+static const struct file_operations edp_ilr_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = edp_ilr_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.write = edp_ilr_write
+};
+
+void connector_debugfs_init(struct amdgpu_dm_connector *connector)
+{
+	int i;
+	struct dentry *dir = connector->base.debugfs_entry;
+
+	if (connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	    connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) {
+		for (i = 0; i < ARRAY_SIZE(dp_debugfs_entries); i++) {
+			debugfs_create_file(dp_debugfs_entries[i].name,
+					    0644, dir, connector,
+					    dp_debugfs_entries[i].fops);
+		}
+	}
+	if (connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) {
+		debugfs_create_file_unsafe("psr_capability", 0444, dir, connector, &psr_capability_fops);
+		debugfs_create_file_unsafe("psr_state", 0444, dir, connector, &psr_fops);
+		debugfs_create_file_unsafe("psr_residency", 0444, dir,
+					   connector, &psr_residency_fops);
+		debugfs_create_file("amdgpu_current_backlight_pwm", 0444, dir, connector,
+				    &current_backlight_fops);
+		debugfs_create_file("amdgpu_target_backlight_pwm", 0444, dir, connector,
+				    &target_backlight_fops);
+		debugfs_create_file("ilr_setting", 0644, dir, connector,
+					&edp_ilr_debugfs_fops);
+		debugfs_create_file("allow_edp_hotplug_detection", 0644, dir, connector,
+					&allow_edp_hotplug_detection_fops);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(connector_debugfs_entries); i++) {
+		debugfs_create_file(connector_debugfs_entries[i].name,
+				    0644, dir, connector,
+				    connector_debugfs_entries[i].fops);
+	}
+
+	if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA) {
+		for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_entries); i++) {
+			debugfs_create_file(hdmi_debugfs_entries[i].name,
+					    0644, dir, connector,
+					    hdmi_debugfs_entries[i].fops);
+		}
+	}
+}
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+/*
+ * Set crc window coordinate x start
+ */
+static int crc_win_x_start_set(void *data, u64 val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.window_param.x_start = (uint16_t) val;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+/*
+ * Get crc window coordinate x start
+ */
+static int crc_win_x_start_get(void *data, u64 *val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	*val = acrtc->dm_irq_params.window_param.x_start;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(crc_win_x_start_fops, crc_win_x_start_get,
+			 crc_win_x_start_set, "%llu\n");
+
+
+/*
+ * Set crc window coordinate y start
+ */
+static int crc_win_y_start_set(void *data, u64 val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.window_param.y_start = (uint16_t) val;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+/*
+ * Get crc window coordinate y start
+ */
+static int crc_win_y_start_get(void *data, u64 *val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	*val = acrtc->dm_irq_params.window_param.y_start;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(crc_win_y_start_fops, crc_win_y_start_get,
+			 crc_win_y_start_set, "%llu\n");
+
+/*
+ * Set crc window coordinate x end
+ */
+static int crc_win_x_end_set(void *data, u64 val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.window_param.x_end = (uint16_t) val;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+/*
+ * Get crc window coordinate x end
+ */
+static int crc_win_x_end_get(void *data, u64 *val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	*val = acrtc->dm_irq_params.window_param.x_end;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(crc_win_x_end_fops, crc_win_x_end_get,
+			 crc_win_x_end_set, "%llu\n");
+
+/*
+ * Set crc window coordinate y end
+ */
+static int crc_win_y_end_set(void *data, u64 val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.window_param.y_end = (uint16_t) val;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+/*
+ * Get crc window coordinate y end
+ */
+static int crc_win_y_end_get(void *data, u64 *val)
+{
+	struct drm_crtc *crtc = data;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	*val = acrtc->dm_irq_params.window_param.y_end;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(crc_win_y_end_fops, crc_win_y_end_get,
+			 crc_win_y_end_set, "%llu\n");
+/*
+ * Trigger to commit crc window
+ */
+static int crc_win_update_set(void *data, u64 val)
+{
+	struct drm_crtc *crtc = data;
+	struct amdgpu_crtc *acrtc;
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+
+	if (val) {
+		acrtc = to_amdgpu_crtc(crtc);
+		mutex_lock(&adev->dm.dc_lock);
+		/* PSR may write to OTG CRC window control register,
+		 * so close it before starting secure_display.
+		 */
+		amdgpu_dm_psr_disable(acrtc->dm_irq_params.stream);
+
+		spin_lock_irq(&adev_to_drm(adev)->event_lock);
+
+		acrtc->dm_irq_params.window_param.activated = true;
+		acrtc->dm_irq_params.window_param.update_win = true;
+		acrtc->dm_irq_params.window_param.skip_frame_cnt = 0;
+
+		spin_unlock_irq(&adev_to_drm(adev)->event_lock);
+		mutex_unlock(&adev->dm.dc_lock);
+	}
+
+	return 0;
+}
+
+/*
+ * Get crc window update flag
+ */
+static int crc_win_update_get(void *data, u64 *val)
+{
+	*val = 0;
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(crc_win_update_fops, crc_win_update_get,
+			 crc_win_update_set, "%llu\n");
+#endif
+void crtc_debugfs_init(struct drm_crtc *crtc)
+{
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+	struct dentry *dir = debugfs_lookup("crc", crtc->debugfs_entry);
+
+	if (!dir)
+		return;
+
+	debugfs_create_file_unsafe("crc_win_x_start", 0644, dir, crtc,
+				   &crc_win_x_start_fops);
+	debugfs_create_file_unsafe("crc_win_y_start", 0644, dir, crtc,
+				   &crc_win_y_start_fops);
+	debugfs_create_file_unsafe("crc_win_x_end", 0644, dir, crtc,
+				   &crc_win_x_end_fops);
+	debugfs_create_file_unsafe("crc_win_y_end", 0644, dir, crtc,
+				   &crc_win_y_end_fops);
+	debugfs_create_file_unsafe("crc_win_update", 0644, dir, crtc,
+				   &crc_win_update_fops);
+	dput(dir);
+#endif
+	debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
+			    crtc, &amdgpu_current_bpc_fops);
+	debugfs_create_file("amdgpu_current_colorspace", 0644, crtc->debugfs_entry,
+			    crtc, &amdgpu_current_colorspace_fops);
+}
+
+/*
+ * Writes DTN log state to the user supplied buffer.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log
+ */
+static ssize_t dtn_log_read(
+	struct file *f,
+	char __user *buf,
+	size_t size,
+	loff_t *pos)
+{
+	struct amdgpu_device *adev = file_inode(f)->i_private;
+	struct dc *dc = adev->dm.dc;
+	struct dc_log_buffer_ctx log_ctx = { 0 };
+	ssize_t result = 0;
+
+	if (!buf || !size)
+		return -EINVAL;
+
+	if (!dc->hwss.log_hw_state)
+		return 0;
+
+	dc->hwss.log_hw_state(dc, &log_ctx);
+
+	if (*pos < log_ctx.pos) {
+		size_t to_copy = log_ctx.pos - *pos;
+
+		to_copy = min(to_copy, size);
+
+		if (!copy_to_user(buf, log_ctx.buf + *pos, to_copy)) {
+			*pos += to_copy;
+			result = to_copy;
+		}
+	}
+
+	kfree(log_ctx.buf);
+
+	return result;
+}
+
+/*
+ * Writes DTN log state to dmesg when triggered via a write.
+ * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log
+ */
+static ssize_t dtn_log_write(
+	struct file *f,
+	const char __user *buf,
+	size_t size,
+	loff_t *pos)
+{
+	struct amdgpu_device *adev = file_inode(f)->i_private;
+	struct dc *dc = adev->dm.dc;
+
+	/* Write triggers log output via dmesg. */
+	if (size == 0)
+		return 0;
+
+	if (dc->hwss.log_hw_state)
+		dc->hwss.log_hw_state(dc, NULL);
+
+	return size;
+}
+
+static int mst_topo_show(struct seq_file *m, void *unused)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+	struct amdgpu_dm_connector *aconnector;
+
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	drm_for_each_connector_iter(connector, &conn_iter) {
+		if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
+			continue;
+
+		aconnector = to_amdgpu_dm_connector(connector);
+
+		/* Ensure we're only dumping the topology of a root mst node */
+		if (!aconnector->mst_mgr.mst_state)
+			continue;
+
+		seq_printf(m, "\nMST topology for connector %d\n", aconnector->connector_id);
+		drm_dp_mst_dump_topology(m, &aconnector->mst_mgr);
+	}
+	drm_connector_list_iter_end(&conn_iter);
+
+	return 0;
+}
+
+/*
+ * Sets trigger hpd for MST topologies.
+ * All connected connectors will be rediscovered and re started as needed if val of 1 is sent.
+ * All topologies will be disconnected if val of 0 is set .
+ * Usage to enable topologies: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_trigger_hpd_mst
+ * Usage to disable topologies: echo 0 > /sys/kernel/debug/dri/0/amdgpu_dm_trigger_hpd_mst
+ */
+static int trigger_hpd_mst_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector_list_iter iter;
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	struct dc_link *link = NULL;
+
+	if (val == 1) {
+		drm_connector_list_iter_begin(dev, &iter);
+		drm_for_each_connector_iter(connector, &iter) {
+			aconnector = to_amdgpu_dm_connector(connector);
+			if (aconnector->dc_link->type == dc_connection_mst_branch &&
+			    aconnector->mst_mgr.aux) {
+				mutex_lock(&adev->dm.dc_lock);
+				dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
+				mutex_unlock(&adev->dm.dc_lock);
+
+				drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
+			}
+		}
+	} else if (val == 0) {
+		drm_connector_list_iter_begin(dev, &iter);
+		drm_for_each_connector_iter(connector, &iter) {
+			aconnector = to_amdgpu_dm_connector(connector);
+			if (!aconnector->dc_link)
+				continue;
+
+			if (!aconnector->mst_root)
+				continue;
+
+			link = aconnector->dc_link;
+			dc_link_dp_receiver_power_ctrl(link, false);
+			drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_root->mst_mgr, false);
+			link->mst_stream_alloc_table.stream_count = 0;
+			memset(link->mst_stream_alloc_table.stream_allocations, 0,
+					sizeof(link->mst_stream_alloc_table.stream_allocations));
+		}
+	} else {
+		return 0;
+	}
+	drm_kms_helper_hotplug_event(dev);
+
+	return 0;
+}
+
+/*
+ * The interface doesn't need get function, so it will return the
+ * value of zero
+ * Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_trigger_hpd_mst
+ */
+static int trigger_hpd_mst_get(void *data, u64 *val)
+{
+	*val = 0;
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(trigger_hpd_mst_ops, trigger_hpd_mst_get,
+			 trigger_hpd_mst_set, "%llu\n");
+
+
+/*
+ * Sets the force_timing_sync debug option from the given string.
+ * All connected displays will be force synchronized immediately.
+ * Usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_force_timing_sync
+ */
+static int force_timing_sync_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.force_timing_sync = (bool)val;
+
+	amdgpu_dm_trigger_timing_sync(adev_to_drm(adev));
+
+	return 0;
+}
+
+/*
+ * Gets the force_timing_sync debug option value into the given buffer.
+ * Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_force_timing_sync
+ */
+static int force_timing_sync_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.force_timing_sync;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(force_timing_sync_ops, force_timing_sync_get,
+			 force_timing_sync_set, "%llu\n");
+
+
+/*
+ * Disables all HPD and HPD RX interrupt handling in the
+ * driver when set to 1. Default is 0.
+ */
+static int disable_hpd_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.disable_hpd_irq = (bool)val;
+
+	return 0;
+}
+
+
+/*
+ * Returns 1 if HPD and HPRX interrupt handling is disabled,
+ * 0 otherwise.
+ */
+static int disable_hpd_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.disable_hpd_irq;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(disable_hpd_ops, disable_hpd_get,
+			 disable_hpd_set, "%llu\n");
+
+/*
+ * Temporary w/a to force sst sequence in M42D DP2 mst receiver
+ * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dp_set_mst_en_for_sst
+ */
+static int dp_force_sst_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.dc->debug.set_mst_en_for_sst = val;
+
+	return 0;
+}
+
+static int dp_force_sst_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.dc->debug.set_mst_en_for_sst;
+
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(dp_set_mst_en_for_sst_ops, dp_force_sst_get,
+			 dp_force_sst_set, "%llu\n");
+
+/*
+ * Force DP2 sequence without VESA certified cable.
+ * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dp_ignore_cable_id
+ */
+static int dp_ignore_cable_id_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.dc->debug.ignore_cable_id = val;
+
+	return 0;
+}
+
+static int dp_ignore_cable_id_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.dc->debug.ignore_cable_id;
+
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(dp_ignore_cable_id_ops, dp_ignore_cable_id_get,
+			 dp_ignore_cable_id_set, "%llu\n");
+
+/*
+ * Sets the DC visual confirm debug option from the given string.
+ * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_visual_confirm
+ */
+static int visual_confirm_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	adev->dm.dc->debug.visual_confirm = (enum visual_confirm)val;
+
+	return 0;
+}
+
+/*
+ * Reads the DC visual confirm debug option value into the given buffer.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_visual_confirm
+ */
+static int visual_confirm_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.dc->debug.visual_confirm;
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mst_topo);
+DEFINE_DEBUGFS_ATTRIBUTE(visual_confirm_fops, visual_confirm_get,
+			 visual_confirm_set, "%llu\n");
+
+
+/*
+ * Sets the DC skip_detection_link_training debug option from the given string.
+ * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_skip_detection_link_training
+ */
+static int skip_detection_link_training_set(void *data, u64 val)
+{
+	struct amdgpu_device *adev = data;
+
+	if (val == 0)
+		adev->dm.dc->debug.skip_detection_link_training = false;
+	else
+		adev->dm.dc->debug.skip_detection_link_training = true;
+
+	return 0;
+}
+
+/*
+ * Reads the DC skip_detection_link_training debug option value into the given buffer.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_skip_detection_link_training
+ */
+static int skip_detection_link_training_get(void *data, u64 *val)
+{
+	struct amdgpu_device *adev = data;
+
+	*val = adev->dm.dc->debug.skip_detection_link_training;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(skip_detection_link_training_fops,
+			 skip_detection_link_training_get,
+			 skip_detection_link_training_set, "%llu\n");
+
+/*
+ * Dumps the DCC_EN bit for each pipe.
+ * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dcc_en
+ */
+static ssize_t dcc_en_bits_read(
+	struct file *f,
+	char __user *buf,
+	size_t size,
+	loff_t *pos)
+{
+	struct amdgpu_device *adev = file_inode(f)->i_private;
+	struct dc *dc = adev->dm.dc;
+	char *rd_buf = NULL;
+	const uint32_t rd_buf_size = 32;
+	uint32_t result = 0;
+	int offset = 0;
+	int num_pipes = dc->res_pool->pipe_count;
+	int *dcc_en_bits;
+	int i, r;
+
+	dcc_en_bits = kcalloc(num_pipes, sizeof(int), GFP_KERNEL);
+	if (!dcc_en_bits)
+		return -ENOMEM;
+
+	if (!dc->hwss.get_dcc_en_bits) {
+		kfree(dcc_en_bits);
+		return 0;
+	}
+
+	dc->hwss.get_dcc_en_bits(dc, dcc_en_bits);
+
+	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
+	if (!rd_buf) {
+		kfree(dcc_en_bits);
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < num_pipes; i++)
+		offset += snprintf(rd_buf + offset, rd_buf_size - offset,
+				   "%d  ", dcc_en_bits[i]);
+	rd_buf[strlen(rd_buf)] = '\n';
+
+	kfree(dcc_en_bits);
+
+	while (size) {
+		if (*pos >= rd_buf_size)
+			break;
+		r = put_user(*(rd_buf + result), buf);
+		if (r) {
+			kfree(rd_buf);
+			return r; /* r = -EFAULT */
+		}
+		buf += 1;
+		size -= 1;
+		*pos += 1;
+		result += 1;
+	}
+
+	kfree(rd_buf);
+	return result;
+}
+
+void dtn_debugfs_init(struct amdgpu_device *adev)
+{
+	static const struct file_operations dtn_log_fops = {
+		.owner = THIS_MODULE,
+		.read = dtn_log_read,
+		.write = dtn_log_write,
+		.llseek = default_llseek
+	};
+	static const struct file_operations dcc_en_bits_fops = {
+		.owner = THIS_MODULE,
+		.read = dcc_en_bits_read,
+		.llseek = default_llseek
+	};
+
+	struct drm_minor *minor = adev_to_drm(adev)->primary;
+	struct dentry *root = minor->debugfs_root;
+
+	debugfs_create_file("amdgpu_mst_topology", 0444, root,
+			    adev, &mst_topo_fops);
+	debugfs_create_file("amdgpu_dm_dtn_log", 0644, root, adev,
+			    &dtn_log_fops);
+	debugfs_create_file("amdgpu_dm_dp_set_mst_en_for_sst", 0644, root, adev,
+				&dp_set_mst_en_for_sst_ops);
+	debugfs_create_file("amdgpu_dm_dp_ignore_cable_id", 0644, root, adev,
+				&dp_ignore_cable_id_ops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_visual_confirm", 0644, root, adev,
+				   &visual_confirm_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_skip_detection_link_training", 0644, root, adev,
+				   &skip_detection_link_training_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_dmub_tracebuffer", 0644, root,
+				   adev, &dmub_tracebuffer_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_dmub_fw_state", 0644, root,
+				   adev, &dmub_fw_state_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_force_timing_sync", 0644, root,
+				   adev, &force_timing_sync_ops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_dmcub_trace_event_en", 0644, root,
+				   adev, &dmcub_trace_event_state_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_trigger_hpd_mst", 0644, root,
+				   adev, &trigger_hpd_mst_ops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_dcc_en", 0644, root, adev,
+				   &dcc_en_bits_fops);
+
+	debugfs_create_file_unsafe("amdgpu_dm_disable_hpd", 0644, root, adev,
+				   &disable_hpd_ops);
+
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.h
new file mode 100644
index 000000000..071200473
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __AMDGPU_DM_DEBUGFS_H__
+#define __AMDGPU_DM_DEBUGFS_H__
+
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+
+void connector_debugfs_init(struct amdgpu_dm_connector *connector);
+void dtn_debugfs_init(struct amdgpu_device *adev);
+void crtc_debugfs_init(struct drm_crtc *crtc);
+
+#endif
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
new file mode 100644
index 000000000..20cfc5be2
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -0,0 +1,779 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "amdgpu_dm_hdcp.h"
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "dm_helpers.h"
+#include <drm/display/drm_hdcp_helper.h>
+#include "hdcp_psp.h"
+
+/*
+ * If the SRM version being loaded is less than or equal to the
+ * currently loaded SRM, psp will return 0xFFFF as the version
+ */
+#define PSP_SRM_VERSION_MAX 0xFFFF
+
+static bool
+lp_write_i2c(void *handle, uint32_t address, const uint8_t *data, uint32_t size)
+{
+	struct dc_link *link = handle;
+	struct i2c_payload i2c_payloads[] = {{true, address, size, (void *)data} };
+	struct i2c_command cmd = {i2c_payloads, 1, I2C_COMMAND_ENGINE_HW,
+				  link->dc->caps.i2c_speed_in_khz};
+
+	return dm_helpers_submit_i2c(link->ctx, link, &cmd);
+}
+
+static bool
+lp_read_i2c(void *handle, uint32_t address, uint8_t offset, uint8_t *data, uint32_t size)
+{
+	struct dc_link *link = handle;
+
+	struct i2c_payload i2c_payloads[] = {{true, address, 1, &offset},
+					     {false, address, size, data} };
+	struct i2c_command cmd = {i2c_payloads, 2, I2C_COMMAND_ENGINE_HW,
+				  link->dc->caps.i2c_speed_in_khz};
+
+	return dm_helpers_submit_i2c(link->ctx, link, &cmd);
+}
+
+static bool
+lp_write_dpcd(void *handle, uint32_t address, const uint8_t *data, uint32_t size)
+{
+	struct dc_link *link = handle;
+
+	return dm_helpers_dp_write_dpcd(link->ctx, link, address, data, size);
+}
+
+static bool
+lp_read_dpcd(void *handle, uint32_t address, uint8_t *data, uint32_t size)
+{
+	struct dc_link *link = handle;
+
+	return dm_helpers_dp_read_dpcd(link->ctx, link, address, data, size);
+}
+
+static uint8_t *psp_get_srm(struct psp_context *psp, uint32_t *srm_version, uint32_t *srm_size)
+{
+	struct ta_hdcp_shared_memory *hdcp_cmd;
+
+	if (!psp->hdcp_context.context.initialized) {
+		DRM_WARN("Failed to get hdcp srm. HDCP TA is not initialized.");
+		return NULL;
+	}
+
+	hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.context.mem_context.shared_buf;
+	memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
+
+	hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP_GET_SRM;
+	psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
+
+	if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS)
+		return NULL;
+
+	*srm_version = hdcp_cmd->out_msg.hdcp_get_srm.srm_version;
+	*srm_size = hdcp_cmd->out_msg.hdcp_get_srm.srm_buf_size;
+
+	return hdcp_cmd->out_msg.hdcp_get_srm.srm_buf;
+}
+
+static int psp_set_srm(struct psp_context *psp,
+		       u8 *srm, uint32_t srm_size, uint32_t *srm_version)
+{
+	struct ta_hdcp_shared_memory *hdcp_cmd;
+
+	if (!psp->hdcp_context.context.initialized) {
+		DRM_WARN("Failed to get hdcp srm. HDCP TA is not initialized.");
+		return -EINVAL;
+	}
+
+	hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.context.mem_context.shared_buf;
+	memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
+
+	memcpy(hdcp_cmd->in_msg.hdcp_set_srm.srm_buf, srm, srm_size);
+	hdcp_cmd->in_msg.hdcp_set_srm.srm_buf_size = srm_size;
+	hdcp_cmd->cmd_id = TA_HDCP_COMMAND__HDCP_SET_SRM;
+
+	psp_hdcp_invoke(psp, hdcp_cmd->cmd_id);
+
+	if (hdcp_cmd->hdcp_status != TA_HDCP_STATUS__SUCCESS ||
+	    hdcp_cmd->out_msg.hdcp_set_srm.valid_signature != 1 ||
+	    hdcp_cmd->out_msg.hdcp_set_srm.srm_version == PSP_SRM_VERSION_MAX)
+		return -EINVAL;
+
+	*srm_version = hdcp_cmd->out_msg.hdcp_set_srm.srm_version;
+	return 0;
+}
+
+static void process_output(struct hdcp_workqueue *hdcp_work)
+{
+	struct mod_hdcp_output output = hdcp_work->output;
+
+	if (output.callback_stop)
+		cancel_delayed_work(&hdcp_work->callback_dwork);
+
+	if (output.callback_needed)
+		schedule_delayed_work(&hdcp_work->callback_dwork,
+				      msecs_to_jiffies(output.callback_delay));
+
+	if (output.watchdog_timer_stop)
+		cancel_delayed_work(&hdcp_work->watchdog_timer_dwork);
+
+	if (output.watchdog_timer_needed)
+		schedule_delayed_work(&hdcp_work->watchdog_timer_dwork,
+				      msecs_to_jiffies(output.watchdog_timer_delay));
+
+	schedule_delayed_work(&hdcp_work->property_validate_dwork, msecs_to_jiffies(0));
+}
+
+static void link_lock(struct hdcp_workqueue *work, bool lock)
+{
+	int i = 0;
+
+	for (i = 0; i < work->max_link; i++) {
+		if (lock)
+			mutex_lock(&work[i].mutex);
+		else
+			mutex_unlock(&work[i].mutex);
+	}
+}
+
+void hdcp_update_display(struct hdcp_workqueue *hdcp_work,
+			 unsigned int link_index,
+			 struct amdgpu_dm_connector *aconnector,
+			 u8 content_type,
+			 bool enable_encryption)
+{
+	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+	struct mod_hdcp_link_adjustment link_adjust;
+	struct mod_hdcp_display_adjustment display_adjust;
+	unsigned int conn_index = aconnector->base.index;
+
+	mutex_lock(&hdcp_w->mutex);
+	hdcp_w->aconnector[conn_index] = aconnector;
+
+	memset(&link_adjust, 0, sizeof(link_adjust));
+	memset(&display_adjust, 0, sizeof(display_adjust));
+
+	if (enable_encryption) {
+		/* Explicitly set the saved SRM as sysfs call will be after we already enabled hdcp
+		 * (s3 resume case)
+		 */
+		if (hdcp_work->srm_size > 0)
+			psp_set_srm(hdcp_work->hdcp.config.psp.handle, hdcp_work->srm,
+				    hdcp_work->srm_size,
+				    &hdcp_work->srm_version);
+
+		display_adjust.disable = MOD_HDCP_DISPLAY_NOT_DISABLE;
+
+		link_adjust.auth_delay = 2;
+
+		if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) {
+			link_adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0;
+		} else if (content_type == DRM_MODE_HDCP_CONTENT_TYPE1) {
+			link_adjust.hdcp1.disable = 1;
+			link_adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_1;
+		}
+
+		schedule_delayed_work(&hdcp_w->property_validate_dwork,
+				      msecs_to_jiffies(DRM_HDCP_CHECK_PERIOD_MS));
+	} else {
+		display_adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION;
+		hdcp_w->encryption_status[conn_index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+		cancel_delayed_work(&hdcp_w->property_validate_dwork);
+	}
+
+	mod_hdcp_update_display(&hdcp_w->hdcp, conn_index, &link_adjust, &display_adjust, &hdcp_w->output);
+
+	process_output(hdcp_w);
+	mutex_unlock(&hdcp_w->mutex);
+}
+
+static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work,
+				unsigned int link_index,
+			 struct amdgpu_dm_connector *aconnector)
+{
+	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+	struct drm_connector_state *conn_state = aconnector->base.state;
+	unsigned int conn_index = aconnector->base.index;
+
+	mutex_lock(&hdcp_w->mutex);
+	hdcp_w->aconnector[conn_index] = aconnector;
+
+	/* the removal of display will invoke auth reset -> hdcp destroy and
+	 * we'd expect the Content Protection (CP) property changed back to
+	 * DESIRED if at the time ENABLED. CP property change should occur
+	 * before the element removed from linked list.
+	 */
+	if (conn_state && conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
+		conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+
+		DRM_DEBUG_DRIVER("[HDCP_DM] display %d, CP 2 -> 1, type %u, DPMS %u\n",
+				 aconnector->base.index, conn_state->hdcp_content_type,
+				 aconnector->base.dpms);
+	}
+
+	mod_hdcp_remove_display(&hdcp_w->hdcp, aconnector->base.index, &hdcp_w->output);
+
+	process_output(hdcp_w);
+	mutex_unlock(&hdcp_w->mutex);
+}
+
+void hdcp_reset_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index)
+{
+	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+	unsigned int conn_index;
+
+	mutex_lock(&hdcp_w->mutex);
+
+	mod_hdcp_reset_connection(&hdcp_w->hdcp,  &hdcp_w->output);
+
+	cancel_delayed_work(&hdcp_w->property_validate_dwork);
+
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX; conn_index++) {
+		hdcp_w->encryption_status[conn_index] =
+			MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+	}
+
+	process_output(hdcp_w);
+
+	mutex_unlock(&hdcp_w->mutex);
+}
+
+void hdcp_handle_cpirq(struct hdcp_workqueue *hdcp_work, unsigned int link_index)
+{
+	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+
+	schedule_work(&hdcp_w->cpirq_work);
+}
+
+static void event_callback(struct work_struct *work)
+{
+	struct hdcp_workqueue *hdcp_work;
+
+	hdcp_work = container_of(to_delayed_work(work), struct hdcp_workqueue,
+				 callback_dwork);
+
+	mutex_lock(&hdcp_work->mutex);
+
+	cancel_delayed_work(&hdcp_work->callback_dwork);
+
+	mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CALLBACK,
+			       &hdcp_work->output);
+
+	process_output(hdcp_work);
+
+	mutex_unlock(&hdcp_work->mutex);
+}
+
+static void event_property_update(struct work_struct *work)
+{
+	struct hdcp_workqueue *hdcp_work = container_of(work, struct hdcp_workqueue,
+							property_update_work);
+	struct amdgpu_dm_connector *aconnector = NULL;
+	struct drm_device *dev;
+	long ret;
+	unsigned int conn_index;
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
+
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX; conn_index++) {
+		aconnector = hdcp_work->aconnector[conn_index];
+
+		if (!aconnector)
+			continue;
+
+		connector = &aconnector->base;
+
+		/* check if display connected */
+		if (connector->status != connector_status_connected)
+			continue;
+
+		conn_state = aconnector->base.state;
+
+		if (!conn_state)
+			continue;
+
+		dev = connector->dev;
+
+		if (!dev)
+			continue;
+
+		drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+		mutex_lock(&hdcp_work->mutex);
+
+		if (conn_state->commit) {
+			ret = wait_for_completion_interruptible_timeout(&conn_state->commit->hw_done,
+									10 * HZ);
+			if (ret == 0) {
+				DRM_ERROR("HDCP state unknown! Setting it to DESIRED\n");
+				hdcp_work->encryption_status[conn_index] =
+					MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+			}
+		}
+		if (hdcp_work->encryption_status[conn_index] !=
+			MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
+			if (conn_state->hdcp_content_type ==
+				DRM_MODE_HDCP_CONTENT_TYPE0 &&
+				hdcp_work->encryption_status[conn_index] <=
+				MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON) {
+				DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_ENABLED\n");
+				drm_hdcp_update_content_protection(connector,
+								   DRM_MODE_CONTENT_PROTECTION_ENABLED);
+			} else if (conn_state->hdcp_content_type ==
+					DRM_MODE_HDCP_CONTENT_TYPE1 &&
+					hdcp_work->encryption_status[conn_index] ==
+					MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON) {
+				drm_hdcp_update_content_protection(connector,
+								   DRM_MODE_CONTENT_PROTECTION_ENABLED);
+			}
+		} else {
+			DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_DESIRED\n");
+			drm_hdcp_update_content_protection(connector,
+							   DRM_MODE_CONTENT_PROTECTION_DESIRED);
+		}
+		mutex_unlock(&hdcp_work->mutex);
+		drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	}
+}
+
+static void event_property_validate(struct work_struct *work)
+{
+	struct hdcp_workqueue *hdcp_work =
+		container_of(to_delayed_work(work), struct hdcp_workqueue, property_validate_dwork);
+	struct mod_hdcp_display_query query;
+	struct amdgpu_dm_connector *aconnector;
+	unsigned int conn_index;
+
+	mutex_lock(&hdcp_work->mutex);
+
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX;
+	     conn_index++) {
+		aconnector = hdcp_work->aconnector[conn_index];
+
+		if (!aconnector)
+			continue;
+
+		/* check if display connected */
+		if (aconnector->base.status != connector_status_connected)
+			continue;
+
+		if (!aconnector->base.state)
+			continue;
+
+		query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+		mod_hdcp_query_display(&hdcp_work->hdcp, aconnector->base.index,
+				       &query);
+
+		DRM_DEBUG_DRIVER("[HDCP_DM] disp %d, connector->CP %u, (query, work): (%d, %d)\n",
+				 aconnector->base.index,
+			aconnector->base.state->content_protection,
+			query.encryption_status,
+			hdcp_work->encryption_status[conn_index]);
+
+		if (query.encryption_status !=
+		    hdcp_work->encryption_status[conn_index]) {
+			DRM_DEBUG_DRIVER("[HDCP_DM] encryption_status change from %x to %x\n",
+					 hdcp_work->encryption_status[conn_index],
+					 query.encryption_status);
+
+			hdcp_work->encryption_status[conn_index] =
+				query.encryption_status;
+
+			DRM_DEBUG_DRIVER("[HDCP_DM] trigger property_update_work\n");
+
+			schedule_work(&hdcp_work->property_update_work);
+		}
+	}
+
+	mutex_unlock(&hdcp_work->mutex);
+}
+
+static void event_watchdog_timer(struct work_struct *work)
+{
+	struct hdcp_workqueue *hdcp_work;
+
+	hdcp_work = container_of(to_delayed_work(work),
+				 struct hdcp_workqueue,
+				      watchdog_timer_dwork);
+
+	mutex_lock(&hdcp_work->mutex);
+
+	cancel_delayed_work(&hdcp_work->watchdog_timer_dwork);
+
+	mod_hdcp_process_event(&hdcp_work->hdcp,
+			       MOD_HDCP_EVENT_WATCHDOG_TIMEOUT,
+			       &hdcp_work->output);
+
+	process_output(hdcp_work);
+
+	mutex_unlock(&hdcp_work->mutex);
+}
+
+static void event_cpirq(struct work_struct *work)
+{
+	struct hdcp_workqueue *hdcp_work;
+
+	hdcp_work = container_of(work, struct hdcp_workqueue, cpirq_work);
+
+	mutex_lock(&hdcp_work->mutex);
+
+	mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CPIRQ, &hdcp_work->output);
+
+	process_output(hdcp_work);
+
+	mutex_unlock(&hdcp_work->mutex);
+}
+
+void hdcp_destroy(struct kobject *kobj, struct hdcp_workqueue *hdcp_work)
+{
+	int i = 0;
+
+	for (i = 0; i < hdcp_work->max_link; i++) {
+		cancel_delayed_work_sync(&hdcp_work[i].callback_dwork);
+		cancel_delayed_work_sync(&hdcp_work[i].watchdog_timer_dwork);
+	}
+
+	sysfs_remove_bin_file(kobj, &hdcp_work[0].attr);
+	kfree(hdcp_work->srm);
+	kfree(hdcp_work->srm_temp);
+	kfree(hdcp_work);
+}
+
+static bool enable_assr(void *handle, struct dc_link *link)
+{
+	struct hdcp_workqueue *hdcp_work = handle;
+	struct mod_hdcp hdcp = hdcp_work->hdcp;
+	struct psp_context *psp = hdcp.config.psp.handle;
+	struct ta_dtm_shared_memory *dtm_cmd;
+	bool res = true;
+
+	if (!psp->dtm_context.context.initialized) {
+		DRM_INFO("Failed to enable ASSR, DTM TA is not initialized.");
+		return false;
+	}
+
+	dtm_cmd = (struct ta_dtm_shared_memory *)psp->dtm_context.context.mem_context.shared_buf;
+
+	mutex_lock(&psp->dtm_context.mutex);
+	memset(dtm_cmd, 0, sizeof(struct ta_dtm_shared_memory));
+
+	dtm_cmd->cmd_id = TA_DTM_COMMAND__TOPOLOGY_ASSR_ENABLE;
+	dtm_cmd->dtm_in_message.topology_assr_enable.display_topology_dig_be_index =
+		link->link_enc_hw_inst;
+	dtm_cmd->dtm_status = TA_DTM_STATUS__GENERIC_FAILURE;
+
+	psp_dtm_invoke(psp, dtm_cmd->cmd_id);
+
+	if (dtm_cmd->dtm_status != TA_DTM_STATUS__SUCCESS) {
+		DRM_INFO("Failed to enable ASSR");
+		res = false;
+	}
+
+	mutex_unlock(&psp->dtm_context.mutex);
+
+	return res;
+}
+
+static void update_config(void *handle, struct cp_psp_stream_config *config)
+{
+	struct hdcp_workqueue *hdcp_work = handle;
+	struct amdgpu_dm_connector *aconnector = config->dm_stream_ctx;
+	int link_index = aconnector->dc_link->link_index;
+	struct mod_hdcp_display *display = &hdcp_work[link_index].display;
+	struct mod_hdcp_link *link = &hdcp_work[link_index].link;
+	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+	struct dc_sink *sink = NULL;
+	bool link_is_hdcp14 = false;
+
+	if (config->dpms_off) {
+		hdcp_remove_display(hdcp_work, link_index, aconnector);
+		return;
+	}
+
+	memset(display, 0, sizeof(*display));
+	memset(link, 0, sizeof(*link));
+
+	display->index = aconnector->base.index;
+	display->state = MOD_HDCP_DISPLAY_ACTIVE;
+
+	if (aconnector->dc_sink)
+		sink = aconnector->dc_sink;
+	else if (aconnector->dc_em_sink)
+		sink = aconnector->dc_em_sink;
+
+	if (sink)
+		link->mode = mod_hdcp_signal_type_to_operation_mode(sink->sink_signal);
+
+	display->controller = CONTROLLER_ID_D0 + config->otg_inst;
+	display->dig_fe = config->dig_fe;
+	link->dig_be = config->dig_be;
+	link->ddc_line = aconnector->dc_link->ddc_hw_inst + 1;
+	display->stream_enc_idx = config->stream_enc_idx;
+	link->link_enc_idx = config->link_enc_idx;
+	link->dio_output_id = config->dio_output_idx;
+	link->phy_idx = config->phy_idx;
+
+	if (sink)
+		link_is_hdcp14 = dc_link_is_hdcp14(aconnector->dc_link, sink->sink_signal);
+	link->hdcp_supported_informational = link_is_hdcp14;
+	link->dp.rev = aconnector->dc_link->dpcd_caps.dpcd_rev.raw;
+	link->dp.assr_enabled = config->assr_enabled;
+	link->dp.mst_enabled = config->mst_enabled;
+	link->dp.dp2_enabled = config->dp2_enabled;
+	link->dp.usb4_enabled = config->usb4_enabled;
+	display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION;
+	link->adjust.auth_delay = 2;
+	link->adjust.hdcp1.disable = 0;
+	hdcp_w->encryption_status[display->index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+
+	DRM_DEBUG_DRIVER("[HDCP_DM] display %d, CP %d, type %d\n", aconnector->base.index,
+			 (!!aconnector->base.state) ?
+			 aconnector->base.state->content_protection : -1,
+			 (!!aconnector->base.state) ?
+			 aconnector->base.state->hdcp_content_type : -1);
+
+	mutex_lock(&hdcp_w->mutex);
+
+	mod_hdcp_add_display(&hdcp_w->hdcp, link, display, &hdcp_w->output);
+
+	process_output(hdcp_w);
+	mutex_unlock(&hdcp_w->mutex);
+
+}
+
+/**
+ * DOC: Add sysfs interface for set/get srm
+ *
+ * NOTE: From the usermodes prospective you only need to call write *ONCE*, the kernel
+ *      will automatically call once or twice depending on the size
+ *
+ * call: "cat file > /sys/class/drm/card0/device/hdcp_srm" from usermode no matter what the size is
+ *
+ * The kernel can only send PAGE_SIZE at once and since MAX_SRM_FILE(5120) > PAGE_SIZE(4096),
+ * srm_data_write can be called multiple times.
+ *
+ * sysfs interface doesn't tell us the size we will get so we are sending partial SRMs to psp and on
+ * the last call we will send the full SRM. PSP will fail on every call before the last.
+ *
+ * This means we don't know if the SRM is good until the last call. And because of this
+ * limitation we cannot throw errors early as it will stop the kernel from writing to sysfs
+ *
+ * Example 1:
+ *	Good SRM size = 5096
+ *	first call to write 4096 -> PSP fails
+ *	Second call to write 1000 -> PSP Pass -> SRM is set
+ *
+ * Example 2:
+ *	Bad SRM size = 4096
+ *	first call to write 4096 -> PSP fails (This is the same as above, but we don't know if this
+ *	is the last call)
+ *
+ * Solution?:
+ *	1: Parse the SRM? -> It is signed so we don't know the EOF
+ *	2: We can have another sysfs that passes the size before calling set. -> simpler solution
+ *	below
+ *
+ * Easy Solution:
+ * Always call get after Set to verify if set was successful.
+ * +----------------------+
+ * |   Why it works:      |
+ * +----------------------+
+ * PSP will only update its srm if its older than the one we are trying to load.
+ * Always do set first than get.
+ *	-if we try to "1. SET" a older version PSP will reject it and we can "2. GET" the newer
+ *	version and save it
+ *
+ *	-if we try to "1. SET" a newer version PSP will accept it and we can "2. GET" the
+ *	same(newer) version back and save it
+ *
+ *	-if we try to "1. SET" a newer version and PSP rejects it. That means the format is
+ *	incorrect/corrupted and we should correct our SRM by getting it from PSP
+ */
+static ssize_t srm_data_write(struct file *filp, struct kobject *kobj,
+			      struct bin_attribute *bin_attr, char *buffer,
+			      loff_t pos, size_t count)
+{
+	struct hdcp_workqueue *work;
+	u32 srm_version = 0;
+
+	work = container_of(bin_attr, struct hdcp_workqueue, attr);
+	link_lock(work, true);
+
+	memcpy(work->srm_temp + pos, buffer, count);
+
+	if (!psp_set_srm(work->hdcp.config.psp.handle, work->srm_temp, pos + count, &srm_version)) {
+		DRM_DEBUG_DRIVER("HDCP SRM SET version 0x%X", srm_version);
+		memcpy(work->srm, work->srm_temp, pos + count);
+		work->srm_size = pos + count;
+		work->srm_version = srm_version;
+	}
+
+	link_lock(work, false);
+
+	return count;
+}
+
+static ssize_t srm_data_read(struct file *filp, struct kobject *kobj,
+			     struct bin_attribute *bin_attr, char *buffer,
+			     loff_t pos, size_t count)
+{
+	struct hdcp_workqueue *work;
+	u8 *srm = NULL;
+	u32 srm_version;
+	u32 srm_size;
+	size_t ret = count;
+
+	work = container_of(bin_attr, struct hdcp_workqueue, attr);
+
+	link_lock(work, true);
+
+	srm = psp_get_srm(work->hdcp.config.psp.handle, &srm_version, &srm_size);
+
+	if (!srm) {
+		ret = -EINVAL;
+		goto ret;
+	}
+
+	if (pos >= srm_size)
+		ret = 0;
+
+	if (srm_size - pos < count) {
+		memcpy(buffer, srm + pos, srm_size - pos);
+		ret = srm_size - pos;
+		goto ret;
+	}
+
+	memcpy(buffer, srm + pos, count);
+
+ret:
+	link_lock(work, false);
+	return ret;
+}
+
+/* From the hdcp spec (5.Renewability) SRM needs to be stored in a non-volatile memory.
+ *
+ * For example,
+ *	if Application "A" sets the SRM (ver 2) and we reboot/suspend and later when Application "B"
+ *	needs to use HDCP, the version in PSP should be SRM(ver 2). So SRM should be persistent
+ *	across boot/reboots/suspend/resume/shutdown
+ *
+ * Currently when the system goes down (suspend/shutdown) the SRM is cleared from PSP. For HDCP
+ * we need to make the SRM persistent.
+ *
+ * -PSP owns the checking of SRM but doesn't have the ability to store it in a non-volatile memory.
+ * -The kernel cannot write to the file systems.
+ * -So we need usermode to do this for us, which is why an interface for usermode is needed
+ *
+ *
+ *
+ * Usermode can read/write to/from PSP using the sysfs interface
+ * For example:
+ *	to save SRM from PSP to storage : cat /sys/class/drm/card0/device/hdcp_srm > srmfile
+ *	to load from storage to PSP: cat srmfile > /sys/class/drm/card0/device/hdcp_srm
+ */
+static const struct bin_attribute data_attr = {
+	.attr = {.name = "hdcp_srm", .mode = 0664},
+	.size = PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, /* Limit SRM size */
+	.write = srm_data_write,
+	.read = srm_data_read,
+};
+
+struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev,
+					     struct cp_psp *cp_psp, struct dc *dc)
+{
+	int max_caps = dc->caps.max_links;
+	struct hdcp_workqueue *hdcp_work;
+	int i = 0;
+
+	hdcp_work = kcalloc(max_caps, sizeof(*hdcp_work), GFP_KERNEL);
+	if (ZERO_OR_NULL_PTR(hdcp_work))
+		return NULL;
+
+	hdcp_work->srm = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE,
+				 sizeof(*hdcp_work->srm), GFP_KERNEL);
+
+	if (!hdcp_work->srm)
+		goto fail_alloc_context;
+
+	hdcp_work->srm_temp = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE,
+				      sizeof(*hdcp_work->srm_temp), GFP_KERNEL);
+
+	if (!hdcp_work->srm_temp)
+		goto fail_alloc_context;
+
+	hdcp_work->max_link = max_caps;
+
+	for (i = 0; i < max_caps; i++) {
+		mutex_init(&hdcp_work[i].mutex);
+
+		INIT_WORK(&hdcp_work[i].cpirq_work, event_cpirq);
+		INIT_WORK(&hdcp_work[i].property_update_work, event_property_update);
+		INIT_DELAYED_WORK(&hdcp_work[i].callback_dwork, event_callback);
+		INIT_DELAYED_WORK(&hdcp_work[i].watchdog_timer_dwork, event_watchdog_timer);
+		INIT_DELAYED_WORK(&hdcp_work[i].property_validate_dwork, event_property_validate);
+
+		hdcp_work[i].hdcp.config.psp.handle = &adev->psp;
+		if (dc->ctx->dce_version == DCN_VERSION_3_1 ||
+		    dc->ctx->dce_version == DCN_VERSION_3_14 ||
+		    dc->ctx->dce_version == DCN_VERSION_3_15 ||
+		    dc->ctx->dce_version == DCN_VERSION_3_16)
+			hdcp_work[i].hdcp.config.psp.caps.dtm_v3_supported = 1;
+		hdcp_work[i].hdcp.config.ddc.handle = dc_get_link_at_index(dc, i);
+		hdcp_work[i].hdcp.config.ddc.funcs.write_i2c = lp_write_i2c;
+		hdcp_work[i].hdcp.config.ddc.funcs.read_i2c = lp_read_i2c;
+		hdcp_work[i].hdcp.config.ddc.funcs.write_dpcd = lp_write_dpcd;
+		hdcp_work[i].hdcp.config.ddc.funcs.read_dpcd = lp_read_dpcd;
+
+		memset(hdcp_work[i].aconnector, 0,
+		       sizeof(struct amdgpu_dm_connector *) *
+			       AMDGPU_DM_MAX_DISPLAY_INDEX);
+		memset(hdcp_work[i].encryption_status, 0,
+		       sizeof(enum mod_hdcp_encryption_status) *
+			       AMDGPU_DM_MAX_DISPLAY_INDEX);
+	}
+
+	cp_psp->funcs.update_stream_config = update_config;
+	cp_psp->funcs.enable_assr = enable_assr;
+	cp_psp->handle = hdcp_work;
+
+	/* File created at /sys/class/drm/card0/device/hdcp_srm*/
+	hdcp_work[0].attr = data_attr;
+	sysfs_bin_attr_init(&hdcp_work[0].attr);
+
+	if (sysfs_create_bin_file(&adev->dev->kobj, &hdcp_work[0].attr))
+		DRM_WARN("Failed to create device file hdcp_srm");
+
+	return hdcp_work;
+
+fail_alloc_context:
+	kfree(hdcp_work->srm);
+	kfree(hdcp_work->srm_temp);
+	kfree(hdcp_work);
+
+	return NULL;
+}
+
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h
new file mode 100644
index 000000000..69b445b01
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef AMDGPU_DM_AMDGPU_DM_HDCP_H_
+#define AMDGPU_DM_AMDGPU_DM_HDCP_H_
+
+#include "mod_hdcp.h"
+#include "hdcp.h"
+#include "dc.h"
+#include "dm_cp_psp.h"
+#include "amdgpu.h"
+
+struct mod_hdcp;
+struct mod_hdcp_link;
+struct mod_hdcp_display;
+struct cp_psp;
+
+struct hdcp_workqueue {
+	struct work_struct cpirq_work;
+	struct work_struct property_update_work;
+	struct delayed_work callback_dwork;
+	struct delayed_work watchdog_timer_dwork;
+	struct delayed_work property_validate_dwork;
+	struct amdgpu_dm_connector *aconnector[AMDGPU_DM_MAX_DISPLAY_INDEX];
+	struct mutex mutex;
+
+	struct mod_hdcp hdcp;
+	struct mod_hdcp_output output;
+	struct mod_hdcp_display display;
+	struct mod_hdcp_link link;
+
+	enum mod_hdcp_encryption_status encryption_status[AMDGPU_DM_MAX_DISPLAY_INDEX];
+	/* when display is unplugged from mst hub, connctor will be
+	 * destroyed within dm_dp_mst_connector_destroy. connector
+	 * hdcp perperties, like type, undesired, desired, enabled,
+	 * will be lost. So, save hdcp properties into hdcp_work within
+	 * amdgpu_dm_atomic_commit_tail. if the same display is
+	 * plugged back with same display index, its hdcp properties
+	 * will be retrieved from hdcp_work within dm_dp_mst_get_modes
+	 */
+	/* un-desired, desired, enabled */
+	unsigned int content_protection[AMDGPU_DM_MAX_DISPLAY_INDEX];
+	/* hdcp1.x, hdcp2.x */
+	unsigned int hdcp_content_type[AMDGPU_DM_MAX_DISPLAY_INDEX];
+
+	uint8_t max_link;
+
+	uint8_t *srm;
+	uint8_t *srm_temp;
+	uint32_t srm_version;
+	uint32_t srm_size;
+	struct bin_attribute attr;
+};
+
+void hdcp_update_display(struct hdcp_workqueue *hdcp_work,
+			 unsigned int link_index,
+			 struct amdgpu_dm_connector *aconnector,
+			 uint8_t content_type,
+			 bool enable_encryption);
+
+void hdcp_reset_display(struct hdcp_workqueue *work, unsigned int link_index);
+void hdcp_handle_cpirq(struct hdcp_workqueue *work, unsigned int link_index);
+void hdcp_destroy(struct kobject *kobj, struct hdcp_workqueue *work);
+
+struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, struct cp_psp *cp_psp, struct dc *dc);
+
+#endif /* AMDGPU_DM_AMDGPU_DM_HDCP_H_ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
new file mode 100644
index 000000000..cf0834ae5
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -0,0 +1,1279 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <linux/string.h>
+#include <linux/acpi.h>
+#include <linux/i2c.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/amdgpu_drm.h>
+#include <drm/drm_edid.h>
+
+#include "dm_services.h"
+#include "amdgpu.h"
+#include "dc.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_irq.h"
+#include "amdgpu_dm_mst_types.h"
+#include "dpcd_defs.h"
+#include "dc/inc/core_types.h"
+
+#include "dm_helpers.h"
+#include "ddc_service_types.h"
+
+static u32 edid_extract_panel_id(struct edid *edid)
+{
+	return (u32)edid->mfg_id[0] << 24   |
+	       (u32)edid->mfg_id[1] << 16   |
+	       (u32)EDID_PRODUCT_ID(edid);
+}
+
+static void apply_edid_quirks(struct edid *edid, struct dc_edid_caps *edid_caps)
+{
+	uint32_t panel_id = edid_extract_panel_id(edid);
+
+	switch (panel_id) {
+	/* Workaround for some monitors which does not work well with FAMS */
+	case drm_edid_encode_panel_id('S', 'A', 'M', 0x0E5E):
+	case drm_edid_encode_panel_id('S', 'A', 'M', 0x7053):
+	case drm_edid_encode_panel_id('S', 'A', 'M', 0x71AC):
+		DRM_DEBUG_DRIVER("Disabling FAMS on monitor with panel id %X\n", panel_id);
+		edid_caps->panel_patch.disable_fams = true;
+		break;
+	/* Workaround for some monitors that do not clear DPCD 0x317 if FreeSync is unsupported */
+	case drm_edid_encode_panel_id('A', 'U', 'O', 0xA7AB):
+	case drm_edid_encode_panel_id('A', 'U', 'O', 0xE69B):
+		DRM_DEBUG_DRIVER("Clearing DPCD 0x317 on monitor with panel id %X\n", panel_id);
+		edid_caps->panel_patch.remove_sink_ext_caps = true;
+		break;
+	default:
+		return;
+	}
+}
+
+/**
+ * dm_helpers_parse_edid_caps() - Parse edid caps
+ *
+ * @link: current detected link
+ * @edid:	[in] pointer to edid
+ * @edid_caps:	[in] pointer to edid caps
+ *
+ * Return: void
+ */
+enum dc_edid_status dm_helpers_parse_edid_caps(
+		struct dc_link *link,
+		const struct dc_edid *edid,
+		struct dc_edid_caps *edid_caps)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	struct drm_connector *connector = &aconnector->base;
+	struct edid *edid_buf = edid ? (struct edid *) edid->raw_edid : NULL;
+	struct cea_sad *sads;
+	int sad_count = -1;
+	int sadb_count = -1;
+	int i = 0;
+	uint8_t *sadb = NULL;
+
+	enum dc_edid_status result = EDID_OK;
+
+	if (!edid_caps || !edid)
+		return EDID_BAD_INPUT;
+
+	if (!drm_edid_is_valid(edid_buf))
+		result = EDID_BAD_CHECKSUM;
+
+	edid_caps->manufacturer_id = (uint16_t) edid_buf->mfg_id[0] |
+					((uint16_t) edid_buf->mfg_id[1])<<8;
+	edid_caps->product_id = (uint16_t) edid_buf->prod_code[0] |
+					((uint16_t) edid_buf->prod_code[1])<<8;
+	edid_caps->serial_number = edid_buf->serial;
+	edid_caps->manufacture_week = edid_buf->mfg_week;
+	edid_caps->manufacture_year = edid_buf->mfg_year;
+
+	drm_edid_get_monitor_name(edid_buf,
+				  edid_caps->display_name,
+				  AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
+
+	edid_caps->edid_hdmi = connector->display_info.is_hdmi;
+
+	sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads);
+	if (sad_count <= 0)
+		return result;
+
+	edid_caps->audio_mode_count = min(sad_count, DC_MAX_AUDIO_DESC_COUNT);
+	for (i = 0; i < edid_caps->audio_mode_count; ++i) {
+		struct cea_sad *sad = &sads[i];
+
+		edid_caps->audio_modes[i].format_code = sad->format;
+		edid_caps->audio_modes[i].channel_count = sad->channels + 1;
+		edid_caps->audio_modes[i].sample_rate = sad->freq;
+		edid_caps->audio_modes[i].sample_size = sad->byte2;
+	}
+
+	sadb_count = drm_edid_to_speaker_allocation((struct edid *) edid->raw_edid, &sadb);
+
+	if (sadb_count < 0) {
+		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sadb_count);
+		sadb_count = 0;
+	}
+
+	if (sadb_count)
+		edid_caps->speaker_flags = sadb[0];
+	else
+		edid_caps->speaker_flags = DEFAULT_SPEAKER_LOCATION;
+
+	apply_edid_quirks(edid_buf, edid_caps);
+
+	kfree(sads);
+	kfree(sadb);
+
+	return result;
+}
+
+static void
+fill_dc_mst_payload_table_from_drm(struct dc_link *link,
+				   bool enable,
+				   struct drm_dp_mst_atomic_payload *target_payload,
+				   struct dc_dp_mst_stream_allocation_table *table)
+{
+	struct dc_dp_mst_stream_allocation_table new_table = { 0 };
+	struct dc_dp_mst_stream_allocation *sa;
+	struct link_mst_stream_allocation_table copy_of_link_table =
+										link->mst_stream_alloc_table;
+
+	int i;
+	int current_hw_table_stream_cnt = copy_of_link_table.stream_count;
+	struct link_mst_stream_allocation *dc_alloc;
+
+	/* TODO: refactor to set link->mst_stream_alloc_table directly if possible.*/
+	if (enable) {
+		dc_alloc =
+		&copy_of_link_table.stream_allocations[current_hw_table_stream_cnt];
+		dc_alloc->vcp_id = target_payload->vcpi;
+		dc_alloc->slot_count = target_payload->time_slots;
+	} else {
+		for (i = 0; i < copy_of_link_table.stream_count; i++) {
+			dc_alloc =
+			&copy_of_link_table.stream_allocations[i];
+
+			if (dc_alloc->vcp_id == target_payload->vcpi) {
+				dc_alloc->vcp_id = 0;
+				dc_alloc->slot_count = 0;
+				break;
+			}
+		}
+		ASSERT(i != copy_of_link_table.stream_count);
+	}
+
+	/* Fill payload info*/
+	for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
+		dc_alloc =
+			&copy_of_link_table.stream_allocations[i];
+		if (dc_alloc->vcp_id > 0 && dc_alloc->slot_count > 0) {
+			sa = &new_table.stream_allocations[new_table.stream_count];
+			sa->slot_count = dc_alloc->slot_count;
+			sa->vcp_id = dc_alloc->vcp_id;
+			new_table.stream_count++;
+		}
+	}
+
+	/* Overwrite the old table */
+	*table = new_table;
+}
+
+void dm_helpers_dp_update_branch_info(
+	struct dc_context *ctx,
+	const struct dc_link *link)
+{}
+
+static void dm_helpers_construct_old_payload(
+			struct dc_link *link,
+			int pbn_per_slot,
+			struct drm_dp_mst_atomic_payload *new_payload,
+			struct drm_dp_mst_atomic_payload *old_payload)
+{
+	struct link_mst_stream_allocation_table current_link_table =
+									link->mst_stream_alloc_table;
+	struct link_mst_stream_allocation *dc_alloc;
+	int i;
+
+	*old_payload = *new_payload;
+
+	/* Set correct time_slots/PBN of old payload.
+	 * other fields (delete & dsc_enabled) in
+	 * struct drm_dp_mst_atomic_payload are don't care fields
+	 * while calling drm_dp_remove_payload()
+	 */
+	for (i = 0; i < current_link_table.stream_count; i++) {
+		dc_alloc =
+			&current_link_table.stream_allocations[i];
+
+		if (dc_alloc->vcp_id == new_payload->vcpi) {
+			old_payload->time_slots = dc_alloc->slot_count;
+			old_payload->pbn = dc_alloc->slot_count * pbn_per_slot;
+			break;
+		}
+	}
+
+	/* make sure there is an old payload*/
+	ASSERT(i != current_link_table.stream_count);
+
+}
+
+/*
+ * Writes payload allocation table in immediate downstream device.
+ */
+bool dm_helpers_dp_mst_write_payload_allocation_table(
+		struct dc_context *ctx,
+		const struct dc_stream_state *stream,
+		struct dc_dp_mst_stream_allocation_table *proposed_table,
+		bool enable)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_state *mst_state;
+	struct drm_dp_mst_atomic_payload *target_payload, *new_payload, old_payload;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+
+	aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+	/* Accessing the connector state is required for vcpi_slots allocation
+	 * and directly relies on behaviour in commit check
+	 * that blocks before commit guaranteeing that the state
+	 * is not gonna be swapped while still in use in commit tail
+	 */
+
+	if (!aconnector || !aconnector->mst_root)
+		return false;
+
+	mst_mgr = &aconnector->mst_root->mst_mgr;
+	mst_state = to_drm_dp_mst_topology_state(mst_mgr->base.state);
+
+	/* It's OK for this to fail */
+	new_payload = drm_atomic_get_mst_payload_state(mst_state, aconnector->mst_output_port);
+
+	if (enable) {
+		target_payload = new_payload;
+
+		drm_dp_add_payload_part1(mst_mgr, mst_state, new_payload);
+	} else {
+		/* construct old payload by VCPI*/
+		dm_helpers_construct_old_payload(stream->link, mst_state->pbn_div,
+						new_payload, &old_payload);
+		target_payload = &old_payload;
+
+		drm_dp_remove_payload(mst_mgr, mst_state, &old_payload, new_payload);
+	}
+
+	/* mst_mgr->->payloads are VC payload notify MST branch using DPCD or
+	 * AUX message. The sequence is slot 1-63 allocated sequence for each
+	 * stream. AMD ASIC stream slot allocation should follow the same
+	 * sequence. copy DRM MST allocation to dc
+	 */
+	fill_dc_mst_payload_table_from_drm(stream->link, enable, target_payload, proposed_table);
+
+	return true;
+}
+
+/*
+ * poll pending down reply
+ */
+void dm_helpers_dp_mst_poll_pending_down_reply(
+	struct dc_context *ctx,
+	const struct dc_link *link)
+{}
+
+/*
+ * Clear payload allocation table before enable MST DP link.
+ */
+void dm_helpers_dp_mst_clear_payload_allocation_table(
+	struct dc_context *ctx,
+	const struct dc_link *link)
+{}
+
+/*
+ * Polls for ACT (allocation change trigger) handled and sends
+ * ALLOCATE_PAYLOAD message.
+ */
+enum act_return_status dm_helpers_dp_mst_poll_for_allocation_change_trigger(
+		struct dc_context *ctx,
+		const struct dc_stream_state *stream)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+	int ret;
+
+	aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+	if (!aconnector || !aconnector->mst_root)
+		return ACT_FAILED;
+
+	mst_mgr = &aconnector->mst_root->mst_mgr;
+
+	if (!mst_mgr->mst_state)
+		return ACT_FAILED;
+
+	ret = drm_dp_check_act_status(mst_mgr);
+
+	if (ret)
+		return ACT_FAILED;
+
+	return ACT_SUCCESS;
+}
+
+bool dm_helpers_dp_mst_send_payload_allocation(
+		struct dc_context *ctx,
+		const struct dc_stream_state *stream,
+		bool enable)
+{
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_state *mst_state;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+	struct drm_dp_mst_atomic_payload *payload;
+	enum mst_progress_status set_flag = MST_ALLOCATE_NEW_PAYLOAD;
+	enum mst_progress_status clr_flag = MST_CLEAR_ALLOCATED_PAYLOAD;
+	int ret = 0;
+
+	aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+	if (!aconnector || !aconnector->mst_root)
+		return false;
+
+	mst_mgr = &aconnector->mst_root->mst_mgr;
+	mst_state = to_drm_dp_mst_topology_state(mst_mgr->base.state);
+
+	payload = drm_atomic_get_mst_payload_state(mst_state, aconnector->mst_output_port);
+
+	if (!enable) {
+		set_flag = MST_CLEAR_ALLOCATED_PAYLOAD;
+		clr_flag = MST_ALLOCATE_NEW_PAYLOAD;
+	}
+
+	if (enable)
+		ret = drm_dp_add_payload_part2(mst_mgr, mst_state->base.state, payload);
+
+	if (ret) {
+		amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			set_flag, false);
+	} else {
+		amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			set_flag, true);
+		amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			clr_flag, false);
+	}
+
+	return true;
+}
+
+void dm_dtn_log_begin(struct dc_context *ctx,
+	struct dc_log_buffer_ctx *log_ctx)
+{
+	static const char msg[] = "[dtn begin]\n";
+
+	if (!log_ctx) {
+		pr_info("%s", msg);
+		return;
+	}
+
+	dm_dtn_log_append_v(ctx, log_ctx, "%s", msg);
+}
+
+__printf(3, 4)
+void dm_dtn_log_append_v(struct dc_context *ctx,
+	struct dc_log_buffer_ctx *log_ctx,
+	const char *msg, ...)
+{
+	va_list args;
+	size_t total;
+	int n;
+
+	if (!log_ctx) {
+		/* No context, redirect to dmesg. */
+		struct va_format vaf;
+
+		vaf.fmt = msg;
+		vaf.va = &args;
+
+		va_start(args, msg);
+		pr_info("%pV", &vaf);
+		va_end(args);
+
+		return;
+	}
+
+	/* Measure the output. */
+	va_start(args, msg);
+	n = vsnprintf(NULL, 0, msg, args);
+	va_end(args);
+
+	if (n <= 0)
+		return;
+
+	/* Reallocate the string buffer as needed. */
+	total = log_ctx->pos + n + 1;
+
+	if (total > log_ctx->size) {
+		char *buf = kvcalloc(total, sizeof(char), GFP_KERNEL);
+
+		if (buf) {
+			memcpy(buf, log_ctx->buf, log_ctx->pos);
+			kfree(log_ctx->buf);
+
+			log_ctx->buf = buf;
+			log_ctx->size = total;
+		}
+	}
+
+	if (!log_ctx->buf)
+		return;
+
+	/* Write the formatted string to the log buffer. */
+	va_start(args, msg);
+	n = vscnprintf(
+		log_ctx->buf + log_ctx->pos,
+		log_ctx->size - log_ctx->pos,
+		msg,
+		args);
+	va_end(args);
+
+	if (n > 0)
+		log_ctx->pos += n;
+}
+
+void dm_dtn_log_end(struct dc_context *ctx,
+	struct dc_log_buffer_ctx *log_ctx)
+{
+	static const char msg[] = "[dtn end]\n";
+
+	if (!log_ctx) {
+		pr_info("%s", msg);
+		return;
+	}
+
+	dm_dtn_log_append_v(ctx, log_ctx, "%s", msg);
+}
+
+bool dm_helpers_dp_mst_start_top_mgr(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		bool boot)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	int ret;
+
+	if (!aconnector) {
+		DRM_ERROR("Failed to find connector for link!");
+		return false;
+	}
+
+	if (boot) {
+		DRM_INFO("DM_MST: Differing MST start on aconnector: %p [id: %d]\n",
+					aconnector, aconnector->base.base.id);
+		return true;
+	}
+
+	DRM_INFO("DM_MST: starting TM on aconnector: %p [id: %d]\n",
+			aconnector, aconnector->base.base.id);
+
+	ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
+	if (ret < 0) {
+		DRM_ERROR("DM_MST: Failed to set the device into MST mode!");
+		return false;
+	}
+
+	DRM_INFO("DM_MST: DP%x, %d-lane link detected\n", aconnector->mst_mgr.dpcd[0],
+		aconnector->mst_mgr.dpcd[2] & DP_MAX_LANE_COUNT_MASK);
+
+	return true;
+}
+
+bool dm_helpers_dp_mst_stop_top_mgr(
+		struct dc_context *ctx,
+		struct dc_link *link)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+
+	if (!aconnector) {
+		DRM_ERROR("Failed to find connector for link!");
+		return false;
+	}
+
+	DRM_INFO("DM_MST: stopping TM on aconnector: %p [id: %d]\n",
+			aconnector, aconnector->base.base.id);
+
+	if (aconnector->mst_mgr.mst_state == true) {
+		drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, false);
+		link->cur_link_settings.lane_count = 0;
+	}
+
+	return false;
+}
+
+bool dm_helpers_dp_read_dpcd(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		uint32_t address,
+		uint8_t *data,
+		uint32_t size)
+{
+
+	struct amdgpu_dm_connector *aconnector = link->priv;
+
+	if (!aconnector) {
+		DC_LOG_DC("Failed to find connector for link!\n");
+		return false;
+	}
+
+	return drm_dp_dpcd_read(&aconnector->dm_dp_aux.aux, address, data,
+				size) == size;
+}
+
+bool dm_helpers_dp_write_dpcd(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		uint32_t address,
+		const uint8_t *data,
+		uint32_t size)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+
+	if (!aconnector) {
+		DRM_ERROR("Failed to find connector for link!");
+		return false;
+	}
+
+	return drm_dp_dpcd_write(&aconnector->dm_dp_aux.aux,
+			address, (uint8_t *)data, size) > 0;
+}
+
+bool dm_helpers_submit_i2c(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		struct i2c_command *cmd)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	struct i2c_msg *msgs;
+	int i = 0;
+	int num = cmd->number_of_payloads;
+	bool result;
+
+	if (!aconnector) {
+		DRM_ERROR("Failed to find connector for link!");
+		return false;
+	}
+
+	msgs = kcalloc(num, sizeof(struct i2c_msg), GFP_KERNEL);
+
+	if (!msgs)
+		return false;
+
+	for (i = 0; i < num; i++) {
+		msgs[i].flags = cmd->payloads[i].write ? 0 : I2C_M_RD;
+		msgs[i].addr = cmd->payloads[i].address;
+		msgs[i].len = cmd->payloads[i].length;
+		msgs[i].buf = cmd->payloads[i].data;
+	}
+
+	result = i2c_transfer(&aconnector->i2c->base, msgs, num) == num;
+
+	kfree(msgs);
+
+	return result;
+}
+
+static bool execute_synaptics_rc_command(struct drm_dp_aux *aux,
+		bool is_write_cmd,
+		unsigned char cmd,
+		unsigned int length,
+		unsigned int offset,
+		unsigned char *data)
+{
+	bool success = false;
+	unsigned char rc_data[16] = {0};
+	unsigned char rc_offset[4] = {0};
+	unsigned char rc_length[2] = {0};
+	unsigned char rc_cmd = 0;
+	unsigned char rc_result = 0xFF;
+	unsigned char i = 0;
+	int ret;
+
+	if (is_write_cmd) {
+		// write rc data
+		memmove(rc_data, data, length);
+		ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_DATA, rc_data, sizeof(rc_data));
+	}
+
+	// write rc offset
+	rc_offset[0] = (unsigned char) offset & 0xFF;
+	rc_offset[1] = (unsigned char) (offset >> 8) & 0xFF;
+	rc_offset[2] = (unsigned char) (offset >> 16) & 0xFF;
+	rc_offset[3] = (unsigned char) (offset >> 24) & 0xFF;
+	ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_OFFSET, rc_offset, sizeof(rc_offset));
+
+	// write rc length
+	rc_length[0] = (unsigned char) length & 0xFF;
+	rc_length[1] = (unsigned char) (length >> 8) & 0xFF;
+	ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_LENGTH, rc_length, sizeof(rc_length));
+
+	// write rc cmd
+	rc_cmd = cmd | 0x80;
+	ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));
+
+	if (ret < 0) {
+		DRM_ERROR("%s: write cmd ..., err = %d\n",  __func__, ret);
+		return false;
+	}
+
+	// poll until active is 0
+	for (i = 0; i < 10; i++) {
+		drm_dp_dpcd_read(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));
+		if (rc_cmd == cmd)
+			// active is 0
+			break;
+		msleep(10);
+	}
+
+	// read rc result
+	drm_dp_dpcd_read(aux, SYNAPTICS_RC_RESULT, &rc_result, sizeof(rc_result));
+	success = (rc_result == 0);
+
+	if (success && !is_write_cmd) {
+		// read rc data
+		drm_dp_dpcd_read(aux, SYNAPTICS_RC_DATA, data, length);
+	}
+
+	DC_LOG_DC("%s: success = %d\n", __func__, success);
+
+	return success;
+}
+
+static void apply_synaptics_fifo_reset_wa(struct drm_dp_aux *aux)
+{
+	unsigned char data[16] = {0};
+
+	DC_LOG_DC("Start %s\n", __func__);
+
+	// Step 2
+	data[0] = 'P';
+	data[1] = 'R';
+	data[2] = 'I';
+	data[3] = 'U';
+	data[4] = 'S';
+
+	if (!execute_synaptics_rc_command(aux, true, 0x01, 5, 0, data))
+		return;
+
+	// Step 3 and 4
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220998, data))
+		return;
+
+	data[0] &= (~(1 << 1)); // set bit 1 to 0
+	if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220998, data))
+		return;
+
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220D98, data))
+		return;
+
+	data[0] &= (~(1 << 1)); // set bit 1 to 0
+	if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220D98, data))
+		return;
+
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x221198, data))
+		return;
+
+	data[0] &= (~(1 << 1)); // set bit 1 to 0
+	if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x221198, data))
+		return;
+
+	// Step 3 and 5
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220998, data))
+		return;
+
+	data[0] |= (1 << 1); // set bit 1 to 1
+	if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220998, data))
+		return;
+
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220D98, data))
+		return;
+
+	data[0] |= (1 << 1); // set bit 1 to 1
+
+	if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x221198, data))
+		return;
+
+	data[0] |= (1 << 1); // set bit 1 to 1
+	if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x221198, data))
+		return;
+
+	// Step 6
+	if (!execute_synaptics_rc_command(aux, true, 0x02, 0, 0, NULL))
+		return;
+
+	DC_LOG_DC("Done %s\n", __func__);
+}
+
+/* MST Dock */
+static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
+
+static uint8_t write_dsc_enable_synaptics_non_virtual_dpcd_mst(
+		struct drm_dp_aux *aux,
+		const struct dc_stream_state *stream,
+		bool enable)
+{
+	uint8_t ret = 0;
+
+	DC_LOG_DC("Configure DSC to non-virtual dpcd synaptics\n");
+
+	if (enable) {
+		/* When DSC is enabled on previous boot and reboot with the hub,
+		 * there is a chance that Synaptics hub gets stuck during reboot sequence.
+		 * Applying a workaround to reset Synaptics SDP fifo before enabling the first stream
+		 */
+		if (!stream->link->link_status.link_active &&
+			memcmp(stream->link->dpcd_caps.branch_dev_name,
+				(int8_t *)SYNAPTICS_DEVICE_ID, 4) == 0)
+			apply_synaptics_fifo_reset_wa(aux);
+
+		ret = drm_dp_dpcd_write(aux, DP_DSC_ENABLE, &enable, 1);
+		DRM_INFO("Send DSC enable to synaptics\n");
+
+	} else {
+		/* Synaptics hub not support virtual dpcd,
+		 * external monitor occur garbage while disable DSC,
+		 * Disable DSC only when entire link status turn to false,
+		 */
+		if (!stream->link->link_status.link_active) {
+			ret = drm_dp_dpcd_write(aux, DP_DSC_ENABLE, &enable, 1);
+			DRM_INFO("Send DSC disable to synaptics\n");
+		}
+	}
+
+	return ret;
+}
+
+bool dm_helpers_dp_write_dsc_enable(
+		struct dc_context *ctx,
+		const struct dc_stream_state *stream,
+		bool enable)
+{
+	static const uint8_t DSC_DISABLE;
+	static const uint8_t DSC_DECODING = 0x01;
+	static const uint8_t DSC_PASSTHROUGH = 0x02;
+
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_port *port;
+	uint8_t enable_dsc = enable ? DSC_DECODING : DSC_DISABLE;
+	uint8_t enable_passthrough = enable ? DSC_PASSTHROUGH : DSC_DISABLE;
+	uint8_t ret = 0;
+
+	if (!stream)
+		return false;
+
+	if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
+		aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+		if (!aconnector->dsc_aux)
+			return false;
+
+		// apply w/a to synaptics
+		if (needs_dsc_aux_workaround(aconnector->dc_link) &&
+		    (aconnector->mst_downstream_port_present.byte & 0x7) != 0x3)
+			return write_dsc_enable_synaptics_non_virtual_dpcd_mst(
+				aconnector->dsc_aux, stream, enable_dsc);
+
+		port = aconnector->mst_output_port;
+
+		if (enable) {
+			if (port->passthrough_aux) {
+				ret = drm_dp_dpcd_write(port->passthrough_aux,
+							DP_DSC_ENABLE,
+							&enable_passthrough, 1);
+				DC_LOG_DC("Sent DSC pass-through enable to virtual dpcd port, ret = %u\n",
+					  ret);
+			}
+
+			ret = drm_dp_dpcd_write(aconnector->dsc_aux,
+						DP_DSC_ENABLE, &enable_dsc, 1);
+			DC_LOG_DC("Sent DSC decoding enable to %s port, ret = %u\n",
+				  (port->passthrough_aux) ? "remote RX" :
+				  "virtual dpcd",
+				  ret);
+		} else {
+			ret = drm_dp_dpcd_write(aconnector->dsc_aux,
+						DP_DSC_ENABLE, &enable_dsc, 1);
+			DC_LOG_DC("Sent DSC decoding disable to %s port, ret = %u\n",
+				  (port->passthrough_aux) ? "remote RX" :
+				  "virtual dpcd",
+				  ret);
+
+			if (port->passthrough_aux) {
+				ret = drm_dp_dpcd_write(port->passthrough_aux,
+							DP_DSC_ENABLE,
+							&enable_passthrough, 1);
+				DC_LOG_DC("Sent DSC pass-through disable to virtual dpcd port, ret = %u\n",
+					  ret);
+			}
+		}
+	}
+
+	if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT || stream->signal == SIGNAL_TYPE_EDP) {
+		if (stream->sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE) {
+			ret = dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
+			DC_LOG_DC("Send DSC %s to SST RX\n", enable_dsc ? "enable" : "disable");
+		} else if (stream->sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER) {
+			ret = dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
+			DC_LOG_DC("Send DSC %s to DP-HDMI PCON\n", enable_dsc ? "enable" : "disable");
+		}
+	}
+
+	return ret;
+}
+
+bool dm_helpers_is_dp_sink_present(struct dc_link *link)
+{
+	bool dp_sink_present;
+	struct amdgpu_dm_connector *aconnector = link->priv;
+
+	if (!aconnector) {
+		BUG_ON("Failed to find connector for link!");
+		return true;
+	}
+
+	mutex_lock(&aconnector->dm_dp_aux.aux.hw_mutex);
+	dp_sink_present = dc_link_is_dp_sink_present(link);
+	mutex_unlock(&aconnector->dm_dp_aux.aux.hw_mutex);
+	return dp_sink_present;
+}
+
+enum dc_edid_status dm_helpers_read_local_edid(
+		struct dc_context *ctx,
+		struct dc_link *link,
+		struct dc_sink *sink)
+{
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	struct drm_connector *connector = &aconnector->base;
+	struct i2c_adapter *ddc;
+	int retry = 3;
+	enum dc_edid_status edid_status;
+	struct edid *edid;
+
+	if (link->aux_mode)
+		ddc = &aconnector->dm_dp_aux.aux.ddc;
+	else
+		ddc = &aconnector->i2c->base;
+
+	/* some dongles read edid incorrectly the first time,
+	 * do check sum and retry to make sure read correct edid.
+	 */
+	do {
+
+		edid = drm_get_edid(&aconnector->base, ddc);
+
+		/* DP Compliance Test 4.2.2.6 */
+		if (link->aux_mode && connector->edid_corrupt)
+			drm_dp_send_real_edid_checksum(&aconnector->dm_dp_aux.aux, connector->real_edid_checksum);
+
+		if (!edid && connector->edid_corrupt) {
+			connector->edid_corrupt = false;
+			return EDID_BAD_CHECKSUM;
+		}
+
+		if (!edid)
+			return EDID_NO_RESPONSE;
+
+		sink->dc_edid.length = EDID_LENGTH * (edid->extensions + 1);
+		memmove(sink->dc_edid.raw_edid, (uint8_t *)edid, sink->dc_edid.length);
+
+		/* We don't need the original edid anymore */
+		kfree(edid);
+
+		edid_status = dm_helpers_parse_edid_caps(
+						link,
+						&sink->dc_edid,
+						&sink->edid_caps);
+
+	} while (edid_status == EDID_BAD_CHECKSUM && --retry > 0);
+
+	if (edid_status != EDID_OK)
+		DRM_ERROR("EDID err: %d, on connector: %s",
+				edid_status,
+				aconnector->base.name);
+	if (link->aux_mode) {
+		union test_request test_request = {0};
+		union test_response test_response = {0};
+
+		dm_helpers_dp_read_dpcd(ctx,
+					link,
+					DP_TEST_REQUEST,
+					&test_request.raw,
+					sizeof(union test_request));
+
+		if (!test_request.bits.EDID_READ)
+			return edid_status;
+
+		test_response.bits.EDID_CHECKSUM_WRITE = 1;
+
+		dm_helpers_dp_write_dpcd(ctx,
+					link,
+					DP_TEST_EDID_CHECKSUM,
+					&sink->dc_edid.raw_edid[sink->dc_edid.length-1],
+					1);
+
+		dm_helpers_dp_write_dpcd(ctx,
+					link,
+					DP_TEST_RESPONSE,
+					&test_response.raw,
+					sizeof(test_response));
+
+	}
+
+	return edid_status;
+}
+int dm_helper_dmub_aux_transfer_sync(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		struct aux_payload *payload,
+		enum aux_return_code_type *operation_result)
+{
+	if (!link->hpd_status) {
+		*operation_result = AUX_RET_ERROR_HPD_DISCON;
+		return -1;
+	}
+
+	return amdgpu_dm_process_dmub_aux_transfer_sync(ctx, link->link_index, payload,
+			operation_result);
+}
+
+int dm_helpers_dmub_set_config_sync(struct dc_context *ctx,
+		const struct dc_link *link,
+		struct set_config_cmd_payload *payload,
+		enum set_config_status *operation_result)
+{
+	return amdgpu_dm_process_dmub_set_config_sync(ctx, link->link_index, payload,
+			operation_result);
+}
+
+void dm_set_dcn_clocks(struct dc_context *ctx, struct dc_clocks *clks)
+{
+	/* TODO: something */
+}
+
+void dm_helpers_smu_timeout(struct dc_context *ctx, unsigned int msg_id, unsigned int param, unsigned int timeout_us)
+{
+	// TODO:
+	//amdgpu_device_gpu_recover(dc_context->driver-context, NULL);
+}
+
+void dm_helpers_init_panel_settings(
+	struct dc_context *ctx,
+	struct dc_panel_config *panel_config,
+	struct dc_sink *sink)
+{
+	// Extra Panel Power Sequence
+	panel_config->pps.extra_t3_ms = sink->edid_caps.panel_patch.extra_t3_ms;
+	panel_config->pps.extra_t7_ms = sink->edid_caps.panel_patch.extra_t7_ms;
+	panel_config->pps.extra_delay_backlight_off = sink->edid_caps.panel_patch.extra_delay_backlight_off;
+	panel_config->pps.extra_post_t7_ms = 0;
+	panel_config->pps.extra_pre_t11_ms = 0;
+	panel_config->pps.extra_t12_ms = sink->edid_caps.panel_patch.extra_t12_ms;
+	panel_config->pps.extra_post_OUI_ms = 0;
+	// Feature DSC
+	panel_config->dsc.disable_dsc_edp = false;
+	panel_config->dsc.force_dsc_edp_policy = 0;
+}
+
+void dm_helpers_override_panel_settings(
+	struct dc_context *ctx,
+	struct dc_panel_config *panel_config)
+{
+	// Feature DSC
+	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC)
+		panel_config->dsc.disable_dsc_edp = true;
+}
+
+void *dm_helpers_allocate_gpu_mem(
+		struct dc_context *ctx,
+		enum dc_gpu_mem_alloc_type type,
+		size_t size,
+		long long *addr)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct dal_allocation *da;
+	u32 domain = (type == DC_MEM_ALLOC_TYPE_GART) ?
+		AMDGPU_GEM_DOMAIN_GTT : AMDGPU_GEM_DOMAIN_VRAM;
+	int ret;
+
+	da = kzalloc(sizeof(struct dal_allocation), GFP_KERNEL);
+	if (!da)
+		return NULL;
+
+	ret = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
+				      domain, &da->bo,
+				      &da->gpu_addr, &da->cpu_ptr);
+
+	*addr = da->gpu_addr;
+
+	if (ret) {
+		kfree(da);
+		return NULL;
+	}
+
+	/* add da to list in dm */
+	list_add(&da->list, &adev->dm.da_list);
+
+	return da->cpu_ptr;
+}
+
+void dm_helpers_free_gpu_mem(
+		struct dc_context *ctx,
+		enum dc_gpu_mem_alloc_type type,
+		void *pvMem)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct dal_allocation *da;
+
+	/* walk the da list in DM */
+	list_for_each_entry(da, &adev->dm.da_list, list) {
+		if (pvMem == da->cpu_ptr) {
+			amdgpu_bo_free_kernel(&da->bo, &da->gpu_addr, &da->cpu_ptr);
+			list_del(&da->list);
+			kfree(da);
+			break;
+		}
+	}
+}
+
+bool dm_helpers_dmub_outbox_interrupt_control(struct dc_context *ctx, bool enable)
+{
+	enum dc_irq_source irq_source;
+	bool ret;
+
+	irq_source = DC_IRQ_SOURCE_DMCUB_OUTBOX;
+
+	ret = dc_interrupt_set(ctx->dc, irq_source, enable);
+
+	DRM_DEBUG_DRIVER("Dmub trace irq %sabling: r=%d\n",
+			 enable ? "en" : "dis", ret);
+	return ret;
+}
+
+void dm_helpers_mst_enable_stream_features(const struct dc_stream_state *stream)
+{
+	/* TODO: virtual DPCD */
+	struct dc_link *link = stream->link;
+	union down_spread_ctrl old_downspread;
+	union down_spread_ctrl new_downspread;
+
+	if (link->aux_access_disabled)
+		return;
+
+	if (!dm_helpers_dp_read_dpcd(link->ctx, link, DP_DOWNSPREAD_CTRL,
+				     &old_downspread.raw,
+				     sizeof(old_downspread)))
+		return;
+
+	new_downspread.raw = old_downspread.raw;
+	new_downspread.bits.IGNORE_MSA_TIMING_PARAM =
+		(stream->ignore_msa_timing_param) ? 1 : 0;
+
+	if (new_downspread.raw != old_downspread.raw)
+		dm_helpers_dp_write_dpcd(link->ctx, link, DP_DOWNSPREAD_CTRL,
+					 &new_downspread.raw,
+					 sizeof(new_downspread));
+}
+
+bool dm_helpers_dp_handle_test_pattern_request(
+		struct dc_context *ctx,
+		const struct dc_link *link,
+		union link_test_pattern dpcd_test_pattern,
+		union test_misc dpcd_test_params)
+{
+	enum dp_test_pattern test_pattern;
+	enum dp_test_pattern_color_space test_pattern_color_space =
+			DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED;
+	enum dc_color_depth requestColorDepth = COLOR_DEPTH_UNDEFINED;
+	enum dc_pixel_encoding requestPixelEncoding = PIXEL_ENCODING_UNDEFINED;
+	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
+	struct pipe_ctx *pipe_ctx = NULL;
+	struct amdgpu_dm_connector *aconnector = link->priv;
+	int i;
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		if (pipes[i].stream == NULL)
+			continue;
+
+		if (pipes[i].stream->link == link && !pipes[i].top_pipe &&
+			!pipes[i].prev_odm_pipe) {
+			pipe_ctx = &pipes[i];
+			break;
+		}
+	}
+
+	if (pipe_ctx == NULL)
+		return false;
+
+	switch (dpcd_test_pattern.bits.PATTERN) {
+	case LINK_TEST_PATTERN_COLOR_RAMP:
+		test_pattern = DP_TEST_PATTERN_COLOR_RAMP;
+	break;
+	case LINK_TEST_PATTERN_VERTICAL_BARS:
+		test_pattern = DP_TEST_PATTERN_VERTICAL_BARS;
+	break; /* black and white */
+	case LINK_TEST_PATTERN_COLOR_SQUARES:
+		test_pattern = (dpcd_test_params.bits.DYN_RANGE ==
+				TEST_DYN_RANGE_VESA ?
+				DP_TEST_PATTERN_COLOR_SQUARES :
+				DP_TEST_PATTERN_COLOR_SQUARES_CEA);
+	break;
+	default:
+		test_pattern = DP_TEST_PATTERN_VIDEO_MODE;
+	break;
+	}
+
+	if (dpcd_test_params.bits.CLR_FORMAT == 0)
+		test_pattern_color_space = DP_TEST_PATTERN_COLOR_SPACE_RGB;
+	else
+		test_pattern_color_space = dpcd_test_params.bits.YCBCR_COEFS ?
+				DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
+				DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
+
+	switch (dpcd_test_params.bits.BPC) {
+	case 0: // 6 bits
+		requestColorDepth = COLOR_DEPTH_666;
+		break;
+	case 1: // 8 bits
+		requestColorDepth = COLOR_DEPTH_888;
+		break;
+	case 2: // 10 bits
+		requestColorDepth = COLOR_DEPTH_101010;
+		break;
+	case 3: // 12 bits
+		requestColorDepth = COLOR_DEPTH_121212;
+		break;
+	default:
+		break;
+	}
+
+	switch (dpcd_test_params.bits.CLR_FORMAT) {
+	case 0:
+		requestPixelEncoding = PIXEL_ENCODING_RGB;
+		break;
+	case 1:
+		requestPixelEncoding = PIXEL_ENCODING_YCBCR422;
+		break;
+	case 2:
+		requestPixelEncoding = PIXEL_ENCODING_YCBCR444;
+		break;
+	default:
+		requestPixelEncoding = PIXEL_ENCODING_RGB;
+		break;
+	}
+
+	if ((requestColorDepth != COLOR_DEPTH_UNDEFINED
+		&& pipe_ctx->stream->timing.display_color_depth != requestColorDepth)
+		|| (requestPixelEncoding != PIXEL_ENCODING_UNDEFINED
+		&& pipe_ctx->stream->timing.pixel_encoding != requestPixelEncoding)) {
+		DC_LOG_DEBUG("%s: original bpc %d pix encoding %d, changing to %d  %d\n",
+				__func__,
+				pipe_ctx->stream->timing.display_color_depth,
+				pipe_ctx->stream->timing.pixel_encoding,
+				requestColorDepth,
+				requestPixelEncoding);
+		pipe_ctx->stream->timing.display_color_depth = requestColorDepth;
+		pipe_ctx->stream->timing.pixel_encoding = requestPixelEncoding;
+
+		dc_link_update_dsc_config(pipe_ctx);
+
+		aconnector->timing_changed = true;
+		/* store current timing */
+		if (aconnector->timing_requested)
+			*aconnector->timing_requested = pipe_ctx->stream->timing;
+		else
+			DC_LOG_ERROR("%s: timing storage failed\n", __func__);
+
+	}
+
+	dc_link_dp_set_test_pattern(
+		(struct dc_link *) link,
+		test_pattern,
+		test_pattern_color_space,
+		NULL,
+		NULL,
+		0);
+
+	return false;
+}
+
+void dm_set_phyd32clk(struct dc_context *ctx, int freq_khz)
+{
+       // TODO
+}
+
+void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable)
+{
+	/* TODO: add periodic detection implementation */
+}
+
+void dm_helpers_dp_mst_update_branch_bandwidth(
+		struct dc_context *ctx,
+		struct dc_link *link)
+{
+	// TODO
+}
+
+static bool dm_is_freesync_pcon_whitelist(const uint32_t branch_dev_id)
+{
+	bool ret_val = false;
+
+	switch (branch_dev_id) {
+	case DP_BRANCH_DEVICE_ID_0060AD:
+	case DP_BRANCH_DEVICE_ID_00E04C:
+	case DP_BRANCH_DEVICE_ID_90CC24:
+		ret_val = true;
+		break;
+	default:
+		break;
+	}
+
+	return ret_val;
+}
+
+enum adaptive_sync_type dm_get_adaptive_sync_support_type(struct dc_link *link)
+{
+	struct dpcd_caps *dpcd_caps = &link->dpcd_caps;
+	enum adaptive_sync_type as_type = ADAPTIVE_SYNC_TYPE_NONE;
+
+	switch (dpcd_caps->dongle_type) {
+	case DISPLAY_DONGLE_DP_HDMI_CONVERTER:
+		if (dpcd_caps->adaptive_sync_caps.dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT == true &&
+			dpcd_caps->allow_invalid_MSA_timing_param == true &&
+			dm_is_freesync_pcon_whitelist(dpcd_caps->branch_dev_id))
+			as_type = FREESYNC_TYPE_PCON_IN_WHITELIST;
+		break;
+	default:
+		break;
+	}
+
+	return as_type;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
new file mode 100644
index 000000000..51467f132
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
@@ -0,0 +1,950 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services_types.h"
+#include "dc.h"
+
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_irq.h"
+
+/**
+ * DOC: overview
+ *
+ * DM provides another layer of IRQ management on top of what the base driver
+ * already provides. This is something that could be cleaned up, and is a
+ * future TODO item.
+ *
+ * The base driver provides IRQ source registration with DRM, handler
+ * registration into the base driver's IRQ table, and a handler callback
+ * amdgpu_irq_handler(), with which DRM calls on interrupts. This generic
+ * handler looks up the IRQ table, and calls the respective
+ * &amdgpu_irq_src_funcs.process hookups.
+ *
+ * What DM provides on top are two IRQ tables specifically for top-half and
+ * bottom-half IRQ handling, with the bottom-half implementing workqueues:
+ *
+ * - &amdgpu_display_manager.irq_handler_list_high_tab
+ * - &amdgpu_display_manager.irq_handler_list_low_tab
+ *
+ * They override the base driver's IRQ table, and the effect can be seen
+ * in the hooks that DM provides for &amdgpu_irq_src_funcs.process. They
+ * are all set to the DM generic handler amdgpu_dm_irq_handler(), which looks up
+ * DM's IRQ tables. However, in order for base driver to recognize this hook, DM
+ * still needs to register the IRQ with the base driver. See
+ * dce110_register_irq_handlers() and dcn10_register_irq_handlers().
+ *
+ * To expose DC's hardware interrupt toggle to the base driver, DM implements
+ * &amdgpu_irq_src_funcs.set hooks. Base driver calls it through
+ * amdgpu_irq_update() to enable or disable the interrupt.
+ */
+
+/******************************************************************************
+ * Private declarations.
+ *****************************************************************************/
+
+/**
+ * struct amdgpu_dm_irq_handler_data - Data for DM interrupt handlers.
+ *
+ * @list: Linked list entry referencing the next/previous handler
+ * @handler: Handler function
+ * @handler_arg: Argument passed to the handler when triggered
+ * @dm: DM which this handler belongs to
+ * @irq_source: DC interrupt source that this handler is registered for
+ * @work: work struct
+ */
+struct amdgpu_dm_irq_handler_data {
+	struct list_head list;
+	interrupt_handler handler;
+	void *handler_arg;
+
+	struct amdgpu_display_manager *dm;
+	/* DAL irq source which registered for this interrupt. */
+	enum dc_irq_source irq_source;
+	struct work_struct work;
+};
+
+#define DM_IRQ_TABLE_LOCK(adev, flags) \
+	spin_lock_irqsave(&adev->dm.irq_handler_list_table_lock, flags)
+
+#define DM_IRQ_TABLE_UNLOCK(adev, flags) \
+	spin_unlock_irqrestore(&adev->dm.irq_handler_list_table_lock, flags)
+
+/******************************************************************************
+ * Private functions.
+ *****************************************************************************/
+
+static void init_handler_common_data(struct amdgpu_dm_irq_handler_data *hcd,
+				     void (*ih)(void *),
+				     void *args,
+				     struct amdgpu_display_manager *dm)
+{
+	hcd->handler = ih;
+	hcd->handler_arg = args;
+	hcd->dm = dm;
+}
+
+/**
+ * dm_irq_work_func() - Handle an IRQ outside of the interrupt handler proper.
+ *
+ * @work: work struct
+ */
+static void dm_irq_work_func(struct work_struct *work)
+{
+	struct amdgpu_dm_irq_handler_data *handler_data =
+		container_of(work, struct amdgpu_dm_irq_handler_data, work);
+
+	handler_data->handler(handler_data->handler_arg);
+
+	/* Call a DAL subcomponent which registered for interrupt notification
+	 * at INTERRUPT_LOW_IRQ_CONTEXT.
+	 * (The most common use is HPD interrupt)
+	 */
+}
+
+/*
+ * Remove a handler and return a pointer to handler list from which the
+ * handler was removed.
+ */
+static struct list_head *remove_irq_handler(struct amdgpu_device *adev,
+					    void *ih,
+					    const struct dc_interrupt_params *int_params)
+{
+	struct list_head *hnd_list;
+	struct list_head *entry, *tmp;
+	struct amdgpu_dm_irq_handler_data *handler;
+	unsigned long irq_table_flags;
+	bool handler_removed = false;
+	enum dc_irq_source irq_source;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	irq_source = int_params->irq_source;
+
+	switch (int_params->int_context) {
+	case INTERRUPT_HIGH_IRQ_CONTEXT:
+		hnd_list = &adev->dm.irq_handler_list_high_tab[irq_source];
+		break;
+	case INTERRUPT_LOW_IRQ_CONTEXT:
+	default:
+		hnd_list = &adev->dm.irq_handler_list_low_tab[irq_source];
+		break;
+	}
+
+	list_for_each_safe(entry, tmp, hnd_list) {
+
+		handler = list_entry(entry, struct amdgpu_dm_irq_handler_data,
+				     list);
+
+		if (handler == NULL)
+			continue;
+
+		if (ih == handler->handler) {
+			/* Found our handler. Remove it from the list. */
+			list_del(&handler->list);
+			handler_removed = true;
+			break;
+		}
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+
+	if (handler_removed == false) {
+		/* Not necessarily an error - caller may not
+		 * know the context.
+		 */
+		return NULL;
+	}
+
+	kfree(handler);
+
+	DRM_DEBUG_KMS(
+	"DM_IRQ: removed irq handler: %p for: dal_src=%d, irq context=%d\n",
+		ih, int_params->irq_source, int_params->int_context);
+
+	return hnd_list;
+}
+
+/**
+ * unregister_all_irq_handlers() - Cleans up handlers from the DM IRQ table
+ * @adev: The base driver device containing the DM device
+ *
+ * Go through low and high context IRQ tables and deallocate handlers.
+ */
+static void unregister_all_irq_handlers(struct amdgpu_device *adev)
+{
+	struct list_head *hnd_list_low;
+	struct list_head *hnd_list_high;
+	struct list_head *entry, *tmp;
+	struct amdgpu_dm_irq_handler_data *handler;
+	unsigned long irq_table_flags;
+	int i;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	for (i = 0; i < DAL_IRQ_SOURCES_NUMBER; i++) {
+		hnd_list_low = &adev->dm.irq_handler_list_low_tab[i];
+		hnd_list_high = &adev->dm.irq_handler_list_high_tab[i];
+
+		list_for_each_safe(entry, tmp, hnd_list_low) {
+
+			handler = list_entry(entry, struct amdgpu_dm_irq_handler_data,
+					     list);
+
+			if (handler == NULL || handler->handler == NULL)
+				continue;
+
+			list_del(&handler->list);
+			kfree(handler);
+		}
+
+		list_for_each_safe(entry, tmp, hnd_list_high) {
+
+			handler = list_entry(entry, struct amdgpu_dm_irq_handler_data,
+					     list);
+
+			if (handler == NULL || handler->handler == NULL)
+				continue;
+
+			list_del(&handler->list);
+			kfree(handler);
+		}
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+}
+
+static bool
+validate_irq_registration_params(struct dc_interrupt_params *int_params,
+				 void (*ih)(void *))
+{
+	if (NULL == int_params || NULL == ih) {
+		DRM_ERROR("DM_IRQ: invalid input!\n");
+		return false;
+	}
+
+	if (int_params->int_context >= INTERRUPT_CONTEXT_NUMBER) {
+		DRM_ERROR("DM_IRQ: invalid context: %d!\n",
+				int_params->int_context);
+		return false;
+	}
+
+	if (!DAL_VALID_IRQ_SRC_NUM(int_params->irq_source)) {
+		DRM_ERROR("DM_IRQ: invalid irq_source: %d!\n",
+				int_params->irq_source);
+		return false;
+	}
+
+	return true;
+}
+
+static bool validate_irq_unregistration_params(enum dc_irq_source irq_source,
+					       irq_handler_idx handler_idx)
+{
+	if (handler_idx == DAL_INVALID_IRQ_HANDLER_IDX) {
+		DRM_ERROR("DM_IRQ: invalid handler_idx==NULL!\n");
+		return false;
+	}
+
+	if (!DAL_VALID_IRQ_SRC_NUM(irq_source)) {
+		DRM_ERROR("DM_IRQ: invalid irq_source:%d!\n", irq_source);
+		return false;
+	}
+
+	return true;
+}
+/******************************************************************************
+ * Public functions.
+ *
+ * Note: caller is responsible for input validation.
+ *****************************************************************************/
+
+/**
+ * amdgpu_dm_irq_register_interrupt() - Register a handler within DM.
+ * @adev: The base driver device containing the DM device.
+ * @int_params: Interrupt parameters containing the source, and handler context
+ * @ih: Function pointer to the interrupt handler to register
+ * @handler_args: Arguments passed to the handler when the interrupt occurs
+ *
+ * Register an interrupt handler for the given IRQ source, under the given
+ * context. The context can either be high or low. High context handlers are
+ * executed directly within ISR context, while low context is executed within a
+ * workqueue, thereby allowing operations that sleep.
+ *
+ * Registered handlers are called in a FIFO manner, i.e. the most recently
+ * registered handler will be called first.
+ *
+ * Return: Handler data &struct amdgpu_dm_irq_handler_data containing the IRQ
+ *         source, handler function, and args
+ */
+void *amdgpu_dm_irq_register_interrupt(struct amdgpu_device *adev,
+				       struct dc_interrupt_params *int_params,
+				       void (*ih)(void *),
+				       void *handler_args)
+{
+	struct list_head *hnd_list;
+	struct amdgpu_dm_irq_handler_data *handler_data;
+	unsigned long irq_table_flags;
+	enum dc_irq_source irq_source;
+
+	if (false == validate_irq_registration_params(int_params, ih))
+		return DAL_INVALID_IRQ_HANDLER_IDX;
+
+	handler_data = kzalloc(sizeof(*handler_data), GFP_KERNEL);
+	if (!handler_data) {
+		DRM_ERROR("DM_IRQ: failed to allocate irq handler!\n");
+		return DAL_INVALID_IRQ_HANDLER_IDX;
+	}
+
+	init_handler_common_data(handler_data, ih, handler_args, &adev->dm);
+
+	irq_source = int_params->irq_source;
+
+	handler_data->irq_source = irq_source;
+
+	/* Lock the list, add the handler. */
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	switch (int_params->int_context) {
+	case INTERRUPT_HIGH_IRQ_CONTEXT:
+		hnd_list = &adev->dm.irq_handler_list_high_tab[irq_source];
+		break;
+	case INTERRUPT_LOW_IRQ_CONTEXT:
+	default:
+		hnd_list = &adev->dm.irq_handler_list_low_tab[irq_source];
+		INIT_WORK(&handler_data->work, dm_irq_work_func);
+		break;
+	}
+
+	list_add_tail(&handler_data->list, hnd_list);
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+
+	/* This pointer will be stored by code which requested interrupt
+	 * registration.
+	 * The same pointer will be needed in order to unregister the
+	 * interrupt.
+	 */
+
+	DRM_DEBUG_KMS(
+		"DM_IRQ: added irq handler: %p for: dal_src=%d, irq context=%d\n",
+		handler_data,
+		irq_source,
+		int_params->int_context);
+
+	return handler_data;
+}
+
+/**
+ * amdgpu_dm_irq_unregister_interrupt() - Remove a handler from the DM IRQ table
+ * @adev: The base driver device containing the DM device
+ * @irq_source: IRQ source to remove the given handler from
+ * @ih: Function pointer to the interrupt handler to unregister
+ *
+ * Go through both low and high context IRQ tables, and find the given handler
+ * for the given irq source. If found, remove it. Otherwise, do nothing.
+ */
+void amdgpu_dm_irq_unregister_interrupt(struct amdgpu_device *adev,
+					enum dc_irq_source irq_source,
+					void *ih)
+{
+	struct list_head *handler_list;
+	struct dc_interrupt_params int_params;
+	int i;
+
+	if (false == validate_irq_unregistration_params(irq_source, ih))
+		return;
+
+	memset(&int_params, 0, sizeof(int_params));
+
+	int_params.irq_source = irq_source;
+
+	for (i = 0; i < INTERRUPT_CONTEXT_NUMBER; i++) {
+
+		int_params.int_context = i;
+
+		handler_list = remove_irq_handler(adev, ih, &int_params);
+
+		if (handler_list != NULL)
+			break;
+	}
+
+	if (handler_list == NULL) {
+		/* If we got here, it means we searched all irq contexts
+		 * for this irq source, but the handler was not found.
+		 */
+		DRM_ERROR(
+		"DM_IRQ: failed to find irq handler:%p for irq_source:%d!\n",
+			ih, irq_source);
+	}
+}
+
+/**
+ * amdgpu_dm_irq_init() - Initialize DM IRQ management
+ * @adev:  The base driver device containing the DM device
+ *
+ * Initialize DM's high and low context IRQ tables.
+ *
+ * The N by M table contains N IRQ sources, with M
+ * &struct amdgpu_dm_irq_handler_data hooked together in a linked list. The
+ * list_heads are initialized here. When an interrupt n is triggered, all m
+ * handlers are called in sequence, FIFO according to registration order.
+ *
+ * The low context table requires special steps to initialize, since handlers
+ * will be deferred to a workqueue. See &struct irq_list_head.
+ */
+int amdgpu_dm_irq_init(struct amdgpu_device *adev)
+{
+	int src;
+	struct list_head *lh;
+
+	DRM_DEBUG_KMS("DM_IRQ\n");
+
+	spin_lock_init(&adev->dm.irq_handler_list_table_lock);
+
+	for (src = 0; src < DAL_IRQ_SOURCES_NUMBER; src++) {
+		/* low context handler list init */
+		lh = &adev->dm.irq_handler_list_low_tab[src];
+		INIT_LIST_HEAD(lh);
+		/* high context handler init */
+		INIT_LIST_HEAD(&adev->dm.irq_handler_list_high_tab[src]);
+	}
+
+	return 0;
+}
+
+/**
+ * amdgpu_dm_irq_fini() - Tear down DM IRQ management
+ * @adev: The base driver device containing the DM device
+ *
+ * Flush all work within the low context IRQ table.
+ */
+void amdgpu_dm_irq_fini(struct amdgpu_device *adev)
+{
+	int src;
+	struct list_head *lh;
+	struct list_head *entry, *tmp;
+	struct amdgpu_dm_irq_handler_data *handler;
+	unsigned long irq_table_flags;
+
+	DRM_DEBUG_KMS("DM_IRQ: releasing resources.\n");
+	for (src = 0; src < DAL_IRQ_SOURCES_NUMBER; src++) {
+		DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+		/* The handler was removed from the table,
+		 * it means it is safe to flush all the 'work'
+		 * (because no code can schedule a new one).
+		 */
+		lh = &adev->dm.irq_handler_list_low_tab[src];
+		DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+
+		if (!list_empty(lh)) {
+			list_for_each_safe(entry, tmp, lh) {
+				handler = list_entry(
+					entry,
+					struct amdgpu_dm_irq_handler_data,
+					list);
+				flush_work(&handler->work);
+			}
+		}
+	}
+	/* Deallocate handlers from the table. */
+	unregister_all_irq_handlers(adev);
+}
+
+int amdgpu_dm_irq_suspend(struct amdgpu_device *adev)
+{
+	int src;
+	struct list_head *hnd_list_h;
+	struct list_head *hnd_list_l;
+	unsigned long irq_table_flags;
+	struct list_head *entry, *tmp;
+	struct amdgpu_dm_irq_handler_data *handler;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	DRM_DEBUG_KMS("DM_IRQ: suspend\n");
+
+	/**
+	 * Disable HW interrupt  for HPD and HPDRX only since FLIP and VBLANK
+	 * will be disabled from manage_dm_interrupts on disable CRTC.
+	 */
+	for (src = DC_IRQ_SOURCE_HPD1; src <= DC_IRQ_SOURCE_HPD6RX; src++) {
+		hnd_list_l = &adev->dm.irq_handler_list_low_tab[src];
+		hnd_list_h = &adev->dm.irq_handler_list_high_tab[src];
+		if (!list_empty(hnd_list_l) || !list_empty(hnd_list_h))
+			dc_interrupt_set(adev->dm.dc, src, false);
+
+		DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+
+		if (!list_empty(hnd_list_l)) {
+			list_for_each_safe(entry, tmp, hnd_list_l) {
+				handler = list_entry(
+					entry,
+					struct amdgpu_dm_irq_handler_data,
+					list);
+				flush_work(&handler->work);
+			}
+		}
+		DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+	return 0;
+}
+
+int amdgpu_dm_irq_resume_early(struct amdgpu_device *adev)
+{
+	int src;
+	struct list_head *hnd_list_h, *hnd_list_l;
+	unsigned long irq_table_flags;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	DRM_DEBUG_KMS("DM_IRQ: early resume\n");
+
+	/* re-enable short pulse interrupts HW interrupt */
+	for (src = DC_IRQ_SOURCE_HPD1RX; src <= DC_IRQ_SOURCE_HPD6RX; src++) {
+		hnd_list_l = &adev->dm.irq_handler_list_low_tab[src];
+		hnd_list_h = &adev->dm.irq_handler_list_high_tab[src];
+		if (!list_empty(hnd_list_l) || !list_empty(hnd_list_h))
+			dc_interrupt_set(adev->dm.dc, src, true);
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+
+	return 0;
+}
+
+int amdgpu_dm_irq_resume_late(struct amdgpu_device *adev)
+{
+	int src;
+	struct list_head *hnd_list_h, *hnd_list_l;
+	unsigned long irq_table_flags;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	DRM_DEBUG_KMS("DM_IRQ: resume\n");
+
+	/**
+	 * Renable HW interrupt  for HPD and only since FLIP and VBLANK
+	 * will be enabled from manage_dm_interrupts on enable CRTC.
+	 */
+	for (src = DC_IRQ_SOURCE_HPD1; src <= DC_IRQ_SOURCE_HPD6; src++) {
+		hnd_list_l = &adev->dm.irq_handler_list_low_tab[src];
+		hnd_list_h = &adev->dm.irq_handler_list_high_tab[src];
+		if (!list_empty(hnd_list_l) || !list_empty(hnd_list_h))
+			dc_interrupt_set(adev->dm.dc, src, true);
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+	return 0;
+}
+
+/*
+ * amdgpu_dm_irq_schedule_work - schedule all work items registered for the
+ * "irq_source".
+ */
+static void amdgpu_dm_irq_schedule_work(struct amdgpu_device *adev,
+					enum dc_irq_source irq_source)
+{
+	struct  list_head *handler_list = &adev->dm.irq_handler_list_low_tab[irq_source];
+	struct  amdgpu_dm_irq_handler_data *handler_data;
+	bool    work_queued = false;
+
+	if (list_empty(handler_list))
+		return;
+
+	list_for_each_entry(handler_data, handler_list, list) {
+		if (queue_work(system_highpri_wq, &handler_data->work)) {
+			work_queued = true;
+			break;
+		}
+	}
+
+	if (!work_queued) {
+		struct  amdgpu_dm_irq_handler_data *handler_data_add;
+		/*get the amdgpu_dm_irq_handler_data of first item pointed by handler_list*/
+		handler_data = container_of(handler_list->next, struct amdgpu_dm_irq_handler_data, list);
+
+		/*allocate a new amdgpu_dm_irq_handler_data*/
+		handler_data_add = kzalloc(sizeof(*handler_data), GFP_ATOMIC);
+		if (!handler_data_add) {
+			DRM_ERROR("DM_IRQ: failed to allocate irq handler!\n");
+			return;
+		}
+
+		/*copy new amdgpu_dm_irq_handler_data members from handler_data*/
+		handler_data_add->handler       = handler_data->handler;
+		handler_data_add->handler_arg   = handler_data->handler_arg;
+		handler_data_add->dm            = handler_data->dm;
+		handler_data_add->irq_source    = irq_source;
+
+		list_add_tail(&handler_data_add->list, handler_list);
+
+		INIT_WORK(&handler_data_add->work, dm_irq_work_func);
+
+		if (queue_work(system_highpri_wq, &handler_data_add->work))
+			DRM_DEBUG("Queued work for handling interrupt from "
+				  "display for IRQ source %d\n",
+				  irq_source);
+		else
+			DRM_ERROR("Failed to queue work for handling interrupt "
+				  "from display for IRQ source %d\n",
+				  irq_source);
+	}
+}
+
+/*
+ * amdgpu_dm_irq_immediate_work
+ * Callback high irq work immediately, don't send to work queue
+ */
+static void amdgpu_dm_irq_immediate_work(struct amdgpu_device *adev,
+					 enum dc_irq_source irq_source)
+{
+	struct amdgpu_dm_irq_handler_data *handler_data;
+	unsigned long irq_table_flags;
+
+	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
+
+	list_for_each_entry(handler_data,
+			    &adev->dm.irq_handler_list_high_tab[irq_source],
+			    list) {
+		/* Call a subcomponent which registered for immediate
+		 * interrupt notification
+		 */
+		handler_data->handler(handler_data->handler_arg);
+	}
+
+	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
+}
+
+/**
+ * amdgpu_dm_irq_handler - Generic DM IRQ handler
+ * @adev: amdgpu base driver device containing the DM device
+ * @source: Unused
+ * @entry: Data about the triggered interrupt
+ *
+ * Calls all registered high irq work immediately, and schedules work for low
+ * irq. The DM IRQ table is used to find the corresponding handlers.
+ */
+static int amdgpu_dm_irq_handler(struct amdgpu_device *adev,
+				 struct amdgpu_irq_src *source,
+				 struct amdgpu_iv_entry *entry)
+{
+
+	enum dc_irq_source src =
+		dc_interrupt_to_irq_source(
+			adev->dm.dc,
+			entry->src_id,
+			entry->src_data[0]);
+
+	dc_interrupt_ack(adev->dm.dc, src);
+
+	/* Call high irq work immediately */
+	amdgpu_dm_irq_immediate_work(adev, src);
+	/*Schedule low_irq work */
+	amdgpu_dm_irq_schedule_work(adev, src);
+
+	return 0;
+}
+
+static enum dc_irq_source amdgpu_dm_hpd_to_dal_irq_source(unsigned int type)
+{
+	switch (type) {
+	case AMDGPU_HPD_1:
+		return DC_IRQ_SOURCE_HPD1;
+	case AMDGPU_HPD_2:
+		return DC_IRQ_SOURCE_HPD2;
+	case AMDGPU_HPD_3:
+		return DC_IRQ_SOURCE_HPD3;
+	case AMDGPU_HPD_4:
+		return DC_IRQ_SOURCE_HPD4;
+	case AMDGPU_HPD_5:
+		return DC_IRQ_SOURCE_HPD5;
+	case AMDGPU_HPD_6:
+		return DC_IRQ_SOURCE_HPD6;
+	default:
+		return DC_IRQ_SOURCE_INVALID;
+	}
+}
+
+static int amdgpu_dm_set_hpd_irq_state(struct amdgpu_device *adev,
+				       struct amdgpu_irq_src *source,
+				       unsigned int type,
+				       enum amdgpu_interrupt_state state)
+{
+	enum dc_irq_source src = amdgpu_dm_hpd_to_dal_irq_source(type);
+	bool st = (state == AMDGPU_IRQ_STATE_ENABLE);
+
+	dc_interrupt_set(adev->dm.dc, src, st);
+	return 0;
+}
+
+static inline int dm_irq_state(struct amdgpu_device *adev,
+			       struct amdgpu_irq_src *source,
+			       unsigned int crtc_id,
+			       enum amdgpu_interrupt_state state,
+			       const enum irq_type dal_irq_type,
+			       const char *func)
+{
+	bool st;
+	enum dc_irq_source irq_source;
+
+	struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc_id];
+
+	if (!acrtc) {
+		DRM_ERROR(
+			"%s: crtc is NULL at id :%d\n",
+			func,
+			crtc_id);
+		return 0;
+	}
+
+	if (acrtc->otg_inst == -1)
+		return 0;
+
+	irq_source = dal_irq_type + acrtc->otg_inst;
+
+	st = (state == AMDGPU_IRQ_STATE_ENABLE);
+
+	dc_interrupt_set(adev->dm.dc, irq_source, st);
+	return 0;
+}
+
+static int amdgpu_dm_set_pflip_irq_state(struct amdgpu_device *adev,
+					 struct amdgpu_irq_src *source,
+					 unsigned int crtc_id,
+					 enum amdgpu_interrupt_state state)
+{
+	return dm_irq_state(
+		adev,
+		source,
+		crtc_id,
+		state,
+		IRQ_TYPE_PFLIP,
+		__func__);
+}
+
+static int amdgpu_dm_set_crtc_irq_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned int crtc_id,
+					enum amdgpu_interrupt_state state)
+{
+	return dm_irq_state(
+		adev,
+		source,
+		crtc_id,
+		state,
+		IRQ_TYPE_VBLANK,
+		__func__);
+}
+
+static int amdgpu_dm_set_vline0_irq_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned int crtc_id,
+					enum amdgpu_interrupt_state state)
+{
+	return dm_irq_state(
+		adev,
+		source,
+		crtc_id,
+		state,
+		IRQ_TYPE_VLINE0,
+		__func__);
+}
+
+static int amdgpu_dm_set_dmub_outbox_irq_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned int crtc_id,
+					enum amdgpu_interrupt_state state)
+{
+	enum dc_irq_source irq_source = DC_IRQ_SOURCE_DMCUB_OUTBOX;
+	bool st = (state == AMDGPU_IRQ_STATE_ENABLE);
+
+	dc_interrupt_set(adev->dm.dc, irq_source, st);
+	return 0;
+}
+
+static int amdgpu_dm_set_vupdate_irq_state(struct amdgpu_device *adev,
+					   struct amdgpu_irq_src *source,
+					   unsigned int crtc_id,
+					   enum amdgpu_interrupt_state state)
+{
+	return dm_irq_state(
+		adev,
+		source,
+		crtc_id,
+		state,
+		IRQ_TYPE_VUPDATE,
+		__func__);
+}
+
+static int amdgpu_dm_set_dmub_trace_irq_state(struct amdgpu_device *adev,
+					   struct amdgpu_irq_src *source,
+					   unsigned int type,
+					   enum amdgpu_interrupt_state state)
+{
+	enum dc_irq_source irq_source = DC_IRQ_SOURCE_DMCUB_OUTBOX0;
+	bool st = (state == AMDGPU_IRQ_STATE_ENABLE);
+
+	dc_interrupt_set(adev->dm.dc, irq_source, st);
+	return 0;
+}
+
+static const struct amdgpu_irq_src_funcs dm_crtc_irq_funcs = {
+	.set = amdgpu_dm_set_crtc_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_vline0_irq_funcs = {
+	.set = amdgpu_dm_set_vline0_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_dmub_outbox_irq_funcs = {
+	.set = amdgpu_dm_set_dmub_outbox_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_vupdate_irq_funcs = {
+	.set = amdgpu_dm_set_vupdate_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_dmub_trace_irq_funcs = {
+	.set = amdgpu_dm_set_dmub_trace_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_pageflip_irq_funcs = {
+	.set = amdgpu_dm_set_pflip_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+static const struct amdgpu_irq_src_funcs dm_hpd_irq_funcs = {
+	.set = amdgpu_dm_set_hpd_irq_state,
+	.process = amdgpu_dm_irq_handler,
+};
+
+void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev)
+{
+	adev->crtc_irq.num_types = adev->mode_info.num_crtc;
+	adev->crtc_irq.funcs = &dm_crtc_irq_funcs;
+
+	adev->vline0_irq.num_types = adev->mode_info.num_crtc;
+	adev->vline0_irq.funcs = &dm_vline0_irq_funcs;
+
+	adev->dmub_outbox_irq.num_types = 1;
+	adev->dmub_outbox_irq.funcs = &dm_dmub_outbox_irq_funcs;
+
+	adev->vupdate_irq.num_types = adev->mode_info.num_crtc;
+	adev->vupdate_irq.funcs = &dm_vupdate_irq_funcs;
+
+	adev->dmub_trace_irq.num_types = 1;
+	adev->dmub_trace_irq.funcs = &dm_dmub_trace_irq_funcs;
+
+	adev->pageflip_irq.num_types = adev->mode_info.num_crtc;
+	adev->pageflip_irq.funcs = &dm_pageflip_irq_funcs;
+
+	adev->hpd_irq.num_types = adev->mode_info.num_hpd;
+	adev->hpd_irq.funcs = &dm_hpd_irq_funcs;
+}
+void amdgpu_dm_outbox_init(struct amdgpu_device *adev)
+{
+	dc_interrupt_set(adev->dm.dc,
+		DC_IRQ_SOURCE_DMCUB_OUTBOX,
+		true);
+}
+
+/**
+ * amdgpu_dm_hpd_init - hpd setup callback.
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Setup the hpd pins used by the card (evergreen+).
+ * Enable the pin, set the polarity, and enable the hpd interrupts.
+ */
+void amdgpu_dm_hpd_init(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		struct amdgpu_dm_connector *amdgpu_dm_connector =
+				to_amdgpu_dm_connector(connector);
+
+		const struct dc_link *dc_link = amdgpu_dm_connector->dc_link;
+
+		if (dc_link->irq_source_hpd != DC_IRQ_SOURCE_INVALID) {
+			dc_interrupt_set(adev->dm.dc,
+					dc_link->irq_source_hpd,
+					true);
+		}
+
+		if (dc_link->irq_source_hpd_rx != DC_IRQ_SOURCE_INVALID) {
+			dc_interrupt_set(adev->dm.dc,
+					dc_link->irq_source_hpd_rx,
+					true);
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+}
+
+/**
+ * amdgpu_dm_hpd_fini - hpd tear down callback.
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Tear down the hpd pins used by the card (evergreen+).
+ * Disable the hpd interrupts.
+ */
+void amdgpu_dm_hpd_fini(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter) {
+		struct amdgpu_dm_connector *amdgpu_dm_connector =
+				to_amdgpu_dm_connector(connector);
+		const struct dc_link *dc_link = amdgpu_dm_connector->dc_link;
+
+		if (dc_link->irq_source_hpd != DC_IRQ_SOURCE_INVALID) {
+			dc_interrupt_set(adev->dm.dc,
+					dc_link->irq_source_hpd,
+					false);
+		}
+
+		if (dc_link->irq_source_hpd_rx != DC_IRQ_SOURCE_INVALID) {
+			dc_interrupt_set(adev->dm.dc,
+					dc_link->irq_source_hpd_rx,
+					false);
+		}
+	}
+	drm_connector_list_iter_end(&iter);
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h
new file mode 100644
index 000000000..2349238a6
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __AMDGPU_DM_IRQ_H__
+#define __AMDGPU_DM_IRQ_H__
+
+#include "irq_types.h" /* DAL irq definitions */
+
+/*
+ * Display Manager IRQ-related interfaces (for use by DAL).
+ */
+
+/**
+ * amdgpu_dm_irq_init - Initialize internal structures of 'amdgpu_dm_irq'.
+ *
+ * This function should be called exactly once - during DM initialization.
+ *
+ * Returns:
+ *	0 - success
+ *	non-zero - error
+ */
+int amdgpu_dm_irq_init(struct amdgpu_device *adev);
+
+/**
+ * amdgpu_dm_irq_fini - deallocate internal structures of 'amdgpu_dm_irq'.
+ *
+ * This function should be called exactly once - during DM destruction.
+ *
+ */
+void amdgpu_dm_irq_fini(struct amdgpu_device *adev);
+
+/**
+ * amdgpu_dm_irq_register_interrupt - register irq handler for Display block.
+ *
+ * @adev: AMD DRM device
+ * @int_params: parameters for the irq
+ * @ih: pointer to the irq hander function
+ * @handler_args: arguments which will be passed to ih
+ *
+ * Returns:
+ * 	IRQ Handler Index on success.
+ * 	NULL on failure.
+ *
+ * Cannot be called from an interrupt handler.
+ */
+void *amdgpu_dm_irq_register_interrupt(struct amdgpu_device *adev,
+				       struct dc_interrupt_params *int_params,
+				       void (*ih)(void *),
+				       void *handler_args);
+
+/**
+ * amdgpu_dm_irq_unregister_interrupt - unregister handler which was registered
+ *	by amdgpu_dm_irq_register_interrupt().
+ *
+ * @adev: AMD DRM device.
+ * @ih_index: irq handler index which was returned by
+ *	amdgpu_dm_irq_register_interrupt
+ */
+void amdgpu_dm_irq_unregister_interrupt(struct amdgpu_device *adev,
+					enum dc_irq_source irq_source,
+					void *ih_index);
+
+void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev);
+
+void amdgpu_dm_outbox_init(struct amdgpu_device *adev);
+void amdgpu_dm_hpd_init(struct amdgpu_device *adev);
+void amdgpu_dm_hpd_fini(struct amdgpu_device *adev);
+
+/**
+ * amdgpu_dm_irq_suspend - disable ASIC interrupt during suspend.
+ *
+ */
+int amdgpu_dm_irq_suspend(struct amdgpu_device *adev);
+
+/**
+ * amdgpu_dm_irq_resume_early - enable HPDRX ASIC interrupts during resume.
+ * amdgpu_dm_irq_resume - enable ASIC interrupt during resume.
+ *
+ */
+int amdgpu_dm_irq_resume_early(struct amdgpu_device *adev);
+int amdgpu_dm_irq_resume_late(struct amdgpu_device *adev);
+
+#endif /* __AMDGPU_DM_IRQ_H__ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq_params.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq_params.h
new file mode 100644
index 000000000..5c9303241
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq_params.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __AMDGPU_DM_IRQ_PARAMS_H__
+#define __AMDGPU_DM_IRQ_PARAMS_H__
+
+#include "amdgpu_dm_crc.h"
+
+struct dm_irq_params {
+	u32 last_flip_vblank;
+	struct mod_vrr_params vrr_params;
+	struct dc_stream_state *stream;
+	int active_planes;
+	bool allow_psr_entry;
+	struct mod_freesync_config freesync_config;
+
+#ifdef CONFIG_DEBUG_FS
+	enum amdgpu_dm_pipe_crc_source crc_src;
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+	struct crc_window_param window_param;
+#endif
+#endif
+};
+
+#endif /* __AMDGPU_DM_IRQ_PARAMS_H__ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
new file mode 100644
index 000000000..10dd4cd6f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -0,0 +1,1665 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <drm/display/drm_dp_helper.h>
+#include <drm/display/drm_dp_mst_helper.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include "dm_services.h"
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_mst_types.h"
+#include "amdgpu_dm_hdcp.h"
+
+#include "dc.h"
+#include "dm_helpers.h"
+
+#include "ddc_service_types.h"
+#include "dpcd_defs.h"
+
+#include "dmub_cmd.h"
+#if defined(CONFIG_DEBUG_FS)
+#include "amdgpu_dm_debugfs.h"
+#endif
+
+#include "dc/dcn20/dcn20_resource.h"
+
+#define PEAK_FACTOR_X1000 1006
+
+static ssize_t dm_dp_aux_transfer(struct drm_dp_aux *aux,
+				  struct drm_dp_aux_msg *msg)
+{
+	ssize_t result = 0;
+	struct aux_payload payload;
+	enum aux_return_code_type operation_result;
+	struct amdgpu_device *adev;
+	struct ddc_service *ddc;
+
+	if (WARN_ON(msg->size > 16))
+		return -E2BIG;
+
+	payload.address = msg->address;
+	payload.data = msg->buffer;
+	payload.length = msg->size;
+	payload.reply = &msg->reply;
+	payload.i2c_over_aux = (msg->request & DP_AUX_NATIVE_WRITE) == 0;
+	payload.write = (msg->request & DP_AUX_I2C_READ) == 0;
+	payload.mot = (msg->request & DP_AUX_I2C_MOT) != 0;
+	payload.write_status_update =
+			(msg->request & DP_AUX_I2C_WRITE_STATUS_UPDATE) != 0;
+	payload.defer_delay = 0;
+
+	result = dc_link_aux_transfer_raw(TO_DM_AUX(aux)->ddc_service, &payload,
+				      &operation_result);
+
+	/*
+	 * w/a on certain intel platform where hpd is unexpected to pull low during
+	 * 1st sideband message transaction by return AUX_RET_ERROR_HPD_DISCON
+	 * aux transaction is succuess in such case, therefore bypass the error
+	 */
+	ddc = TO_DM_AUX(aux)->ddc_service;
+	adev = ddc->ctx->driver_context;
+	if (adev->dm.aux_hpd_discon_quirk) {
+		if (msg->address == DP_SIDEBAND_MSG_DOWN_REQ_BASE &&
+			operation_result == AUX_RET_ERROR_HPD_DISCON) {
+			result = 0;
+			operation_result = AUX_RET_SUCCESS;
+		}
+	}
+
+	if (payload.write && result >= 0)
+		result = msg->size;
+
+	if (result < 0)
+		switch (operation_result) {
+		case AUX_RET_SUCCESS:
+			break;
+		case AUX_RET_ERROR_HPD_DISCON:
+		case AUX_RET_ERROR_UNKNOWN:
+		case AUX_RET_ERROR_INVALID_OPERATION:
+		case AUX_RET_ERROR_PROTOCOL_ERROR:
+			result = -EIO;
+			break;
+		case AUX_RET_ERROR_INVALID_REPLY:
+		case AUX_RET_ERROR_ENGINE_ACQUIRE:
+			result = -EBUSY;
+			break;
+		case AUX_RET_ERROR_TIMEOUT:
+			result = -ETIMEDOUT;
+			break;
+		}
+
+	return result;
+}
+
+static void
+dm_dp_mst_connector_destroy(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector =
+		to_amdgpu_dm_connector(connector);
+
+	if (aconnector->dc_sink) {
+		dc_link_remove_remote_sink(aconnector->dc_link,
+					   aconnector->dc_sink);
+		dc_sink_release(aconnector->dc_sink);
+	}
+
+	kfree(aconnector->edid);
+
+	drm_connector_cleanup(connector);
+	drm_dp_mst_put_port_malloc(aconnector->mst_output_port);
+	kfree(aconnector);
+}
+
+static int
+amdgpu_dm_mst_connector_late_register(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *amdgpu_dm_connector =
+		to_amdgpu_dm_connector(connector);
+	int r;
+
+	r = drm_dp_mst_connector_late_register(connector,
+					       amdgpu_dm_connector->mst_output_port);
+	if (r < 0)
+		return r;
+
+#if defined(CONFIG_DEBUG_FS)
+	connector_debugfs_init(amdgpu_dm_connector);
+#endif
+
+	return 0;
+}
+
+static void
+amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector =
+		to_amdgpu_dm_connector(connector);
+	struct drm_dp_mst_port *port = aconnector->mst_output_port;
+	struct amdgpu_dm_connector *root = aconnector->mst_root;
+	struct dc_link *dc_link = aconnector->dc_link;
+	struct dc_sink *dc_sink = aconnector->dc_sink;
+
+	drm_dp_mst_connector_early_unregister(connector, port);
+
+	/*
+	 * Release dc_sink for connector which its attached port is
+	 * no longer in the mst topology
+	 */
+	drm_modeset_lock(&root->mst_mgr.base.lock, NULL);
+	if (dc_sink) {
+		if (dc_link->sink_count)
+			dc_link_remove_remote_sink(dc_link, dc_sink);
+
+		DC_LOG_MST("DM_MST: remove remote sink 0x%p, %d remaining\n",
+			dc_sink, dc_link->sink_count);
+
+		dc_sink_release(dc_sink);
+		aconnector->dc_sink = NULL;
+		aconnector->edid = NULL;
+	}
+
+	aconnector->mst_status = MST_STATUS_DEFAULT;
+	drm_modeset_unlock(&root->mst_mgr.base.lock);
+}
+
+static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = dm_dp_mst_connector_destroy,
+	.reset = amdgpu_dm_connector_funcs_reset,
+	.atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+	.atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+	.atomic_get_property = amdgpu_dm_connector_atomic_get_property,
+	.late_register = amdgpu_dm_mst_connector_late_register,
+	.early_unregister = amdgpu_dm_mst_connector_early_unregister,
+};
+
+bool needs_dsc_aux_workaround(struct dc_link *link)
+{
+	if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_90CC24 &&
+	    (link->dpcd_caps.dpcd_rev.raw == DPCD_REV_14 || link->dpcd_caps.dpcd_rev.raw == DPCD_REV_12) &&
+	    link->dpcd_caps.sink_count.bits.SINK_COUNT >= 2)
+		return true;
+
+	return false;
+}
+
+static bool is_synaptics_cascaded_panamera(struct dc_link *link, struct drm_dp_mst_port *port)
+{
+	u8 branch_vendor_data[4] = { 0 }; // Vendor data 0x50C ~ 0x50F
+
+	if (drm_dp_dpcd_read(port->mgr->aux, DP_BRANCH_VENDOR_SPECIFIC_START, &branch_vendor_data, 4) == 4) {
+		if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_90CC24 &&
+				IS_SYNAPTICS_CASCADED_PANAMERA(link->dpcd_caps.branch_dev_name, branch_vendor_data)) {
+			DRM_INFO("Synaptics Cascaded MST hub\n");
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnector)
+{
+	struct dc_sink *dc_sink = aconnector->dc_sink;
+	struct drm_dp_mst_port *port = aconnector->mst_output_port;
+	u8 dsc_caps[16] = { 0 };
+	u8 dsc_branch_dec_caps_raw[3] = { 0 };	// DSC branch decoder caps 0xA0 ~ 0xA2
+	u8 *dsc_branch_dec_caps = NULL;
+
+	aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port);
+
+	/*
+	 * drm_dp_mst_dsc_aux_for_port() will return NULL for certain configs
+	 * because it only check the dsc/fec caps of the "port variable" and not the dock
+	 *
+	 * This case will return NULL: DSC capabe MST dock connected to a non fec/dsc capable display
+	 *
+	 * Workaround: explicitly check the use case above and use the mst dock's aux as dsc_aux
+	 *
+	 */
+	if (!aconnector->dsc_aux && !port->parent->port_parent &&
+	    needs_dsc_aux_workaround(aconnector->dc_link))
+		aconnector->dsc_aux = &aconnector->mst_root->dm_dp_aux.aux;
+
+	/* synaptics cascaded MST hub case */
+	if (!aconnector->dsc_aux && is_synaptics_cascaded_panamera(aconnector->dc_link, port))
+		aconnector->dsc_aux = port->mgr->aux;
+
+	if (!aconnector->dsc_aux)
+		return false;
+
+	if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DSC_SUPPORT, dsc_caps, 16) < 0)
+		return false;
+
+	if (drm_dp_dpcd_read(aconnector->dsc_aux,
+			DP_DSC_BRANCH_OVERALL_THROUGHPUT_0, dsc_branch_dec_caps_raw, 3) == 3)
+		dsc_branch_dec_caps = dsc_branch_dec_caps_raw;
+
+	if (!dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
+				  dsc_caps, dsc_branch_dec_caps,
+				  &dc_sink->dsc_caps.dsc_dec_caps))
+		return false;
+
+	return true;
+}
+
+static bool retrieve_downstream_port_device(struct amdgpu_dm_connector *aconnector)
+{
+	union dp_downstream_port_present ds_port_present;
+
+	if (!aconnector->dsc_aux)
+		return false;
+
+	if (drm_dp_dpcd_read(aconnector->dsc_aux, DP_DOWNSTREAMPORT_PRESENT, &ds_port_present, 1) < 0) {
+		DRM_INFO("Failed to read downstream_port_present 0x05 from DFP of branch device\n");
+		return false;
+	}
+
+	aconnector->mst_downstream_port_present = ds_port_present;
+	DRM_INFO("Downstream port present %d, type %d\n",
+			ds_port_present.fields.PORT_PRESENT, ds_port_present.fields.PORT_TYPE);
+
+	return true;
+}
+
+static int dm_dp_mst_get_modes(struct drm_connector *connector)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	int ret = 0;
+
+	if (!aconnector)
+		return drm_add_edid_modes(connector, NULL);
+
+	if (!aconnector->edid) {
+		struct edid *edid;
+
+		edid = drm_dp_mst_get_edid(connector, &aconnector->mst_root->mst_mgr, aconnector->mst_output_port);
+
+		if (!edid) {
+			amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			MST_REMOTE_EDID, false);
+
+			drm_connector_update_edid_property(
+				&aconnector->base,
+				NULL);
+
+			DRM_DEBUG_KMS("Can't get EDID of %s. Add default remote sink.", connector->name);
+			if (!aconnector->dc_sink) {
+				struct dc_sink *dc_sink;
+				struct dc_sink_init_data init_params = {
+					.link = aconnector->dc_link,
+					.sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST };
+
+				dc_sink = dc_link_add_remote_sink(
+					aconnector->dc_link,
+					NULL,
+					0,
+					&init_params);
+
+				if (!dc_sink) {
+					DRM_ERROR("Unable to add a remote sink\n");
+					return 0;
+				}
+
+				DC_LOG_MST("DM_MST: add remote sink 0x%p, %d remaining\n",
+					dc_sink, aconnector->dc_link->sink_count);
+
+				dc_sink->priv = aconnector;
+				aconnector->dc_sink = dc_sink;
+			}
+
+			return ret;
+		}
+
+		aconnector->edid = edid;
+		amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			MST_REMOTE_EDID, true);
+	}
+
+	if (aconnector->dc_sink && aconnector->dc_sink->sink_signal == SIGNAL_TYPE_VIRTUAL) {
+		dc_sink_release(aconnector->dc_sink);
+		aconnector->dc_sink = NULL;
+	}
+
+	if (!aconnector->dc_sink) {
+		struct dc_sink *dc_sink;
+		struct dc_sink_init_data init_params = {
+				.link = aconnector->dc_link,
+				.sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST };
+		dc_sink = dc_link_add_remote_sink(
+			aconnector->dc_link,
+			(uint8_t *)aconnector->edid,
+			(aconnector->edid->extensions + 1) * EDID_LENGTH,
+			&init_params);
+
+		if (!dc_sink) {
+			DRM_ERROR("Unable to add a remote sink\n");
+			return 0;
+		}
+
+		DC_LOG_MST("DM_MST: add remote sink 0x%p, %d remaining\n",
+			dc_sink, aconnector->dc_link->sink_count);
+
+		dc_sink->priv = aconnector;
+		/* dc_link_add_remote_sink returns a new reference */
+		aconnector->dc_sink = dc_sink;
+
+		/* when display is unplugged from mst hub, connctor will be
+		 * destroyed within dm_dp_mst_connector_destroy. connector
+		 * hdcp perperties, like type, undesired, desired, enabled,
+		 * will be lost. So, save hdcp properties into hdcp_work within
+		 * amdgpu_dm_atomic_commit_tail. if the same display is
+		 * plugged back with same display index, its hdcp properties
+		 * will be retrieved from hdcp_work within dm_dp_mst_get_modes
+		 */
+		if (aconnector->dc_sink && connector->state) {
+			struct drm_device *dev = connector->dev;
+			struct amdgpu_device *adev = drm_to_adev(dev);
+
+			if (adev->dm.hdcp_workqueue) {
+				struct hdcp_workqueue *hdcp_work = adev->dm.hdcp_workqueue;
+				struct hdcp_workqueue *hdcp_w =
+					&hdcp_work[aconnector->dc_link->link_index];
+
+				connector->state->hdcp_content_type =
+				hdcp_w->hdcp_content_type[connector->index];
+				connector->state->content_protection =
+				hdcp_w->content_protection[connector->index];
+			}
+		}
+
+		if (aconnector->dc_sink) {
+			amdgpu_dm_update_freesync_caps(
+					connector, aconnector->edid);
+
+			if (!validate_dsc_caps_on_connector(aconnector))
+				memset(&aconnector->dc_sink->dsc_caps,
+				       0, sizeof(aconnector->dc_sink->dsc_caps));
+
+			if (!retrieve_downstream_port_device(aconnector))
+				memset(&aconnector->mst_downstream_port_present,
+					0, sizeof(aconnector->mst_downstream_port_present));
+		}
+	}
+
+	drm_connector_update_edid_property(
+					&aconnector->base, aconnector->edid);
+
+	ret = drm_add_edid_modes(connector, aconnector->edid);
+
+	return ret;
+}
+
+static struct drm_encoder *
+dm_mst_atomic_best_encoder(struct drm_connector *connector,
+			   struct drm_atomic_state *state)
+{
+	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state,
+											 connector);
+	struct drm_device *dev = connector->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(connector_state->crtc);
+
+	return &adev->dm.mst_encoders[acrtc->crtc_id].base;
+}
+
+static int
+dm_dp_mst_detect(struct drm_connector *connector,
+		 struct drm_modeset_acquire_ctx *ctx, bool force)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct amdgpu_dm_connector *master = aconnector->mst_root;
+	struct drm_dp_mst_port *port = aconnector->mst_output_port;
+	int connection_status;
+
+	if (drm_connector_is_unregistered(connector))
+		return connector_status_disconnected;
+
+	connection_status = drm_dp_mst_detect_port(connector, ctx, &master->mst_mgr,
+							aconnector->mst_output_port);
+
+	if (port->pdt != DP_PEER_DEVICE_NONE && !port->dpcd_rev) {
+		uint8_t dpcd_rev;
+		int ret;
+
+		ret = drm_dp_dpcd_readb(&port->aux, DP_DP13_DPCD_REV, &dpcd_rev);
+
+		if (ret == 1) {
+			port->dpcd_rev = dpcd_rev;
+
+			/* Could be DP1.2 DP Rx case*/
+			if (!dpcd_rev) {
+				ret = drm_dp_dpcd_readb(&port->aux, DP_DPCD_REV, &dpcd_rev);
+
+				if (ret == 1)
+					port->dpcd_rev = dpcd_rev;
+			}
+
+			if (!dpcd_rev)
+				DRM_DEBUG_KMS("Can't decide DPCD revision number!");
+		}
+
+		/*
+		 * Could be legacy sink, logical port etc on DP1.2.
+		 * Will get Nack under these cases when issue remote
+		 * DPCD read.
+		 */
+		if (ret != 1)
+			DRM_DEBUG_KMS("Can't access DPCD");
+	} else if (port->pdt == DP_PEER_DEVICE_NONE) {
+		port->dpcd_rev = 0;
+	}
+
+	/*
+	 * Release dc_sink for connector which unplug event is notified by CSN msg
+	 */
+	if (connection_status == connector_status_disconnected && aconnector->dc_sink) {
+		if (aconnector->dc_link->sink_count)
+			dc_link_remove_remote_sink(aconnector->dc_link, aconnector->dc_sink);
+
+		DC_LOG_MST("DM_MST: remove remote sink 0x%p, %d remaining\n",
+			aconnector->dc_link, aconnector->dc_link->sink_count);
+
+		dc_sink_release(aconnector->dc_sink);
+		aconnector->dc_sink = NULL;
+		aconnector->edid = NULL;
+
+		amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			MST_REMOTE_EDID | MST_ALLOCATE_NEW_PAYLOAD | MST_CLEAR_ALLOCATED_PAYLOAD,
+			false);
+	}
+
+	return connection_status;
+}
+
+static int dm_dp_mst_atomic_check(struct drm_connector *connector,
+				  struct drm_atomic_state *state)
+{
+	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+	struct drm_dp_mst_topology_mgr *mst_mgr = &aconnector->mst_root->mst_mgr;
+	struct drm_dp_mst_port *mst_port = aconnector->mst_output_port;
+
+	return drm_dp_atomic_release_time_slots(state, mst_mgr, mst_port);
+}
+
+static const struct drm_connector_helper_funcs dm_dp_mst_connector_helper_funcs = {
+	.get_modes = dm_dp_mst_get_modes,
+	.mode_valid = amdgpu_dm_connector_mode_valid,
+	.atomic_best_encoder = dm_mst_atomic_best_encoder,
+	.detect_ctx = dm_dp_mst_detect,
+	.atomic_check = dm_dp_mst_atomic_check,
+};
+
+static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
+	.destroy = amdgpu_dm_encoder_destroy,
+};
+
+void
+dm_dp_create_fake_mst_encoders(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	int i;
+
+	for (i = 0; i < adev->dm.display_indexes_num; i++) {
+		struct amdgpu_encoder *amdgpu_encoder = &adev->dm.mst_encoders[i];
+		struct drm_encoder *encoder = &amdgpu_encoder->base;
+
+		encoder->possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
+
+		drm_encoder_init(
+			dev,
+			&amdgpu_encoder->base,
+			&amdgpu_dm_encoder_funcs,
+			DRM_MODE_ENCODER_DPMST,
+			NULL);
+
+		drm_encoder_helper_add(encoder, &amdgpu_dm_encoder_helper_funcs);
+	}
+}
+
+static struct drm_connector *
+dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
+			struct drm_dp_mst_port *port,
+			const char *pathprop)
+{
+	struct amdgpu_dm_connector *master = container_of(mgr, struct amdgpu_dm_connector, mst_mgr);
+	struct drm_device *dev = master->base.dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_connector *connector;
+	int i;
+
+	aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
+	if (!aconnector)
+		return NULL;
+
+	connector = &aconnector->base;
+	aconnector->mst_output_port = port;
+	aconnector->mst_root = master;
+	amdgpu_dm_set_mst_status(&aconnector->mst_status,
+			MST_PROBE, true);
+
+	if (drm_connector_init(
+		dev,
+		connector,
+		&dm_dp_mst_connector_funcs,
+		DRM_MODE_CONNECTOR_DisplayPort)) {
+		kfree(aconnector);
+		return NULL;
+	}
+	drm_connector_helper_add(connector, &dm_dp_mst_connector_helper_funcs);
+
+	amdgpu_dm_connector_init_helper(
+		&adev->dm,
+		aconnector,
+		DRM_MODE_CONNECTOR_DisplayPort,
+		master->dc_link,
+		master->connector_id);
+
+	for (i = 0; i < adev->dm.display_indexes_num; i++) {
+		drm_connector_attach_encoder(&aconnector->base,
+					     &adev->dm.mst_encoders[i].base);
+	}
+
+	connector->max_bpc_property = master->base.max_bpc_property;
+	if (connector->max_bpc_property)
+		drm_connector_attach_max_bpc_property(connector, 8, 16);
+
+	connector->vrr_capable_property = master->base.vrr_capable_property;
+	if (connector->vrr_capable_property)
+		drm_connector_attach_vrr_capable_property(connector);
+
+	drm_object_attach_property(
+		&connector->base,
+		dev->mode_config.path_property,
+		0);
+	drm_object_attach_property(
+		&connector->base,
+		dev->mode_config.tile_property,
+		0);
+
+	drm_connector_set_path_property(connector, pathprop);
+
+	/*
+	 * Initialize connector state before adding the connectror to drm and
+	 * framebuffer lists
+	 */
+	amdgpu_dm_connector_funcs_reset(connector);
+
+	drm_dp_mst_get_port_malloc(port);
+
+	return connector;
+}
+
+void dm_handle_mst_sideband_msg_ready_event(
+	struct drm_dp_mst_topology_mgr *mgr,
+	enum mst_msg_ready_type msg_rdy_type)
+{
+	uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
+	uint8_t dret;
+	bool new_irq_handled = false;
+	int dpcd_addr;
+	uint8_t dpcd_bytes_to_read;
+	const uint8_t max_process_count = 30;
+	uint8_t process_count = 0;
+	u8 retry;
+	struct amdgpu_dm_connector *aconnector =
+			container_of(mgr, struct amdgpu_dm_connector, mst_mgr);
+
+
+	const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
+
+	if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
+		dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
+		/* DPCD 0x200 - 0x201 for downstream IRQ */
+		dpcd_addr = DP_SINK_COUNT;
+	} else {
+		dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
+		/* DPCD 0x2002 - 0x2005 for downstream IRQ */
+		dpcd_addr = DP_SINK_COUNT_ESI;
+	}
+
+	mutex_lock(&aconnector->handle_mst_msg_ready);
+
+	while (process_count < max_process_count) {
+		u8 ack[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = {};
+
+		process_count++;
+
+		dret = drm_dp_dpcd_read(
+			&aconnector->dm_dp_aux.aux,
+			dpcd_addr,
+			esi,
+			dpcd_bytes_to_read);
+
+		if (dret != dpcd_bytes_to_read) {
+			DRM_DEBUG_KMS("DPCD read and acked number is not as expected!");
+			break;
+		}
+
+		DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
+
+		switch (msg_rdy_type) {
+		case DOWN_REP_MSG_RDY_EVENT:
+			/* Only handle DOWN_REP_MSG_RDY case*/
+			esi[1] &= DP_DOWN_REP_MSG_RDY;
+			break;
+		case UP_REQ_MSG_RDY_EVENT:
+			/* Only handle UP_REQ_MSG_RDY case*/
+			esi[1] &= DP_UP_REQ_MSG_RDY;
+			break;
+		default:
+			/* Handle both cases*/
+			esi[1] &= (DP_DOWN_REP_MSG_RDY | DP_UP_REQ_MSG_RDY);
+			break;
+		}
+
+		if (!esi[1])
+			break;
+
+		/* handle MST irq */
+		if (aconnector->mst_mgr.mst_state)
+			drm_dp_mst_hpd_irq_handle_event(&aconnector->mst_mgr,
+						 esi,
+						 ack,
+						 &new_irq_handled);
+
+		if (new_irq_handled) {
+			/* ACK at DPCD to notify down stream */
+			for (retry = 0; retry < 3; retry++) {
+				ssize_t wret;
+
+				wret = drm_dp_dpcd_writeb(&aconnector->dm_dp_aux.aux,
+							  dpcd_addr + 1,
+							  ack[1]);
+				if (wret == 1)
+					break;
+			}
+
+			if (retry == 3) {
+				DRM_ERROR("Failed to ack MST event.\n");
+				break;
+			}
+
+			drm_dp_mst_hpd_irq_send_new_request(&aconnector->mst_mgr);
+
+			new_irq_handled = false;
+		} else {
+			break;
+		}
+	}
+
+	mutex_unlock(&aconnector->handle_mst_msg_ready);
+
+	if (process_count == max_process_count)
+		DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
+}
+
+static void dm_handle_mst_down_rep_msg_ready(struct drm_dp_mst_topology_mgr *mgr)
+{
+	dm_handle_mst_sideband_msg_ready_event(mgr, DOWN_REP_MSG_RDY_EVENT);
+}
+
+static const struct drm_dp_mst_topology_cbs dm_mst_cbs = {
+	.add_connector = dm_dp_add_mst_connector,
+	.poll_hpd_irq = dm_handle_mst_down_rep_msg_ready,
+};
+
+void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
+				       struct amdgpu_dm_connector *aconnector,
+				       int link_index)
+{
+	struct dc_link_settings max_link_enc_cap = {0};
+
+	aconnector->dm_dp_aux.aux.name =
+		kasprintf(GFP_KERNEL, "AMDGPU DM aux hw bus %d",
+			  link_index);
+	aconnector->dm_dp_aux.aux.transfer = dm_dp_aux_transfer;
+	aconnector->dm_dp_aux.aux.drm_dev = dm->ddev;
+	aconnector->dm_dp_aux.ddc_service = aconnector->dc_link->ddc;
+
+	drm_dp_aux_init(&aconnector->dm_dp_aux.aux);
+	drm_dp_cec_register_connector(&aconnector->dm_dp_aux.aux,
+				      &aconnector->base);
+
+	if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
+		return;
+
+	dc_link_dp_get_max_link_enc_cap(aconnector->dc_link, &max_link_enc_cap);
+	aconnector->mst_mgr.cbs = &dm_mst_cbs;
+	drm_dp_mst_topology_mgr_init(&aconnector->mst_mgr, adev_to_drm(dm->adev),
+				     &aconnector->dm_dp_aux.aux, 16, 4, aconnector->connector_id);
+
+	drm_connector_attach_dp_subconnector_property(&aconnector->base);
+}
+
+int dm_mst_get_pbn_divider(struct dc_link *link)
+{
+	if (!link)
+		return 0;
+
+	return dc_link_bandwidth_kbps(link,
+			dc_link_get_link_cap(link)) / (8 * 1000 * 54);
+}
+
+struct dsc_mst_fairness_params {
+	struct dc_crtc_timing *timing;
+	struct dc_sink *sink;
+	struct dc_dsc_bw_range bw_range;
+	bool compression_possible;
+	struct drm_dp_mst_port *port;
+	enum dsc_clock_force_state clock_force_enable;
+	uint32_t num_slices_h;
+	uint32_t num_slices_v;
+	uint32_t bpp_overwrite;
+	struct amdgpu_dm_connector *aconnector;
+};
+
+static uint16_t get_fec_overhead_multiplier(struct dc_link *dc_link)
+{
+	u8 link_coding_cap;
+	uint16_t fec_overhead_multiplier_x1000 = PBN_FEC_OVERHEAD_MULTIPLIER_8B_10B;
+
+	link_coding_cap = dc_link_dp_mst_decide_link_encoding_format(dc_link);
+	if (link_coding_cap == DP_128b_132b_ENCODING)
+		fec_overhead_multiplier_x1000 = PBN_FEC_OVERHEAD_MULTIPLIER_128B_132B;
+
+	return fec_overhead_multiplier_x1000;
+}
+
+static int kbps_to_peak_pbn(int kbps, uint16_t fec_overhead_multiplier_x1000)
+{
+	u64 peak_kbps = kbps;
+
+	peak_kbps *= 1006;
+	peak_kbps *= fec_overhead_multiplier_x1000;
+	peak_kbps = div_u64(peak_kbps, 1000 * 1000);
+	return (int) DIV64_U64_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000));
+}
+
+static void set_dsc_configs_from_fairness_vars(struct dsc_mst_fairness_params *params,
+		struct dsc_mst_fairness_vars *vars,
+		int count,
+		int k)
+{
+	struct drm_connector *drm_connector;
+	int i;
+	struct dc_dsc_config_options dsc_options = {0};
+
+	for (i = 0; i < count; i++) {
+		drm_connector = &params[i].aconnector->base;
+
+		dc_dsc_get_default_config_option(params[i].sink->ctx->dc, &dsc_options);
+		dsc_options.max_target_bpp_limit_override_x16 = drm_connector->display_info.max_dsc_bpp * 16;
+
+		memset(&params[i].timing->dsc_cfg, 0, sizeof(params[i].timing->dsc_cfg));
+		if (vars[i + k].dsc_enabled && dc_dsc_compute_config(
+					params[i].sink->ctx->dc->res_pool->dscs[0],
+					&params[i].sink->dsc_caps.dsc_dec_caps,
+					&dsc_options,
+					0,
+					params[i].timing,
+					dc_link_get_highest_encoding_format(params[i].aconnector->dc_link),
+					&params[i].timing->dsc_cfg)) {
+			params[i].timing->flags.DSC = 1;
+
+			if (params[i].bpp_overwrite)
+				params[i].timing->dsc_cfg.bits_per_pixel = params[i].bpp_overwrite;
+			else
+				params[i].timing->dsc_cfg.bits_per_pixel = vars[i + k].bpp_x16;
+
+			if (params[i].num_slices_h)
+				params[i].timing->dsc_cfg.num_slices_h = params[i].num_slices_h;
+
+			if (params[i].num_slices_v)
+				params[i].timing->dsc_cfg.num_slices_v = params[i].num_slices_v;
+		} else {
+			params[i].timing->flags.DSC = 0;
+		}
+		params[i].timing->dsc_cfg.mst_pbn = vars[i + k].pbn;
+	}
+
+	for (i = 0; i < count; i++) {
+		if (params[i].sink) {
+			if (params[i].sink->sink_signal != SIGNAL_TYPE_VIRTUAL &&
+				params[i].sink->sink_signal != SIGNAL_TYPE_NONE)
+				DRM_DEBUG_DRIVER("%s i=%d dispname=%s\n", __func__, i,
+					params[i].sink->edid_caps.display_name);
+		}
+
+		DRM_DEBUG_DRIVER("dsc=%d bits_per_pixel=%d pbn=%d\n",
+			params[i].timing->flags.DSC,
+			params[i].timing->dsc_cfg.bits_per_pixel,
+			vars[i + k].pbn);
+	}
+}
+
+static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
+{
+	struct dc_dsc_config dsc_config;
+	u64 kbps;
+
+	struct drm_connector *drm_connector = &param.aconnector->base;
+	struct dc_dsc_config_options dsc_options = {0};
+
+	dc_dsc_get_default_config_option(param.sink->ctx->dc, &dsc_options);
+	dsc_options.max_target_bpp_limit_override_x16 = drm_connector->display_info.max_dsc_bpp * 16;
+
+	kbps = div_u64((u64)pbn * 994 * 8 * 54, 64);
+	dc_dsc_compute_config(
+			param.sink->ctx->dc->res_pool->dscs[0],
+			&param.sink->dsc_caps.dsc_dec_caps,
+			&dsc_options,
+			(int) kbps, param.timing,
+			dc_link_get_highest_encoding_format(param.aconnector->dc_link),
+			&dsc_config);
+
+	return dsc_config.bits_per_pixel;
+}
+
+static int increase_dsc_bpp(struct drm_atomic_state *state,
+			    struct drm_dp_mst_topology_state *mst_state,
+			    struct dc_link *dc_link,
+			    struct dsc_mst_fairness_params *params,
+			    struct dsc_mst_fairness_vars *vars,
+			    int count,
+			    int k)
+{
+	int i;
+	bool bpp_increased[MAX_PIPES];
+	int initial_slack[MAX_PIPES];
+	int min_initial_slack;
+	int next_index;
+	int remaining_to_increase = 0;
+	int link_timeslots_used;
+	int fair_pbn_alloc;
+	int ret = 0;
+	uint16_t fec_overhead_multiplier_x1000 = get_fec_overhead_multiplier(dc_link);
+
+	for (i = 0; i < count; i++) {
+		if (vars[i + k].dsc_enabled) {
+			initial_slack[i] =
+			kbps_to_peak_pbn(params[i].bw_range.max_kbps, fec_overhead_multiplier_x1000) - vars[i + k].pbn;
+			bpp_increased[i] = false;
+			remaining_to_increase += 1;
+		} else {
+			initial_slack[i] = 0;
+			bpp_increased[i] = true;
+		}
+	}
+
+	while (remaining_to_increase) {
+		next_index = -1;
+		min_initial_slack = -1;
+		for (i = 0; i < count; i++) {
+			if (!bpp_increased[i]) {
+				if (min_initial_slack == -1 || min_initial_slack > initial_slack[i]) {
+					min_initial_slack = initial_slack[i];
+					next_index = i;
+				}
+			}
+		}
+
+		if (next_index == -1)
+			break;
+
+		link_timeslots_used = 0;
+
+		for (i = 0; i < count; i++)
+			link_timeslots_used += DIV_ROUND_UP(vars[i + k].pbn, mst_state->pbn_div);
+
+		fair_pbn_alloc =
+			(63 - link_timeslots_used) / remaining_to_increase * mst_state->pbn_div;
+
+		if (initial_slack[next_index] > fair_pbn_alloc) {
+			vars[next_index].pbn += fair_pbn_alloc;
+			ret = drm_dp_atomic_find_time_slots(state,
+							    params[next_index].port->mgr,
+							    params[next_index].port,
+							    vars[next_index].pbn);
+			if (ret < 0)
+				return ret;
+
+			ret = drm_dp_mst_atomic_check(state);
+			if (ret == 0) {
+				vars[next_index].bpp_x16 = bpp_x16_from_pbn(params[next_index], vars[next_index].pbn);
+			} else {
+				vars[next_index].pbn -= fair_pbn_alloc;
+				ret = drm_dp_atomic_find_time_slots(state,
+								    params[next_index].port->mgr,
+								    params[next_index].port,
+								    vars[next_index].pbn);
+				if (ret < 0)
+					return ret;
+			}
+		} else {
+			vars[next_index].pbn += initial_slack[next_index];
+			ret = drm_dp_atomic_find_time_slots(state,
+							    params[next_index].port->mgr,
+							    params[next_index].port,
+							    vars[next_index].pbn);
+			if (ret < 0)
+				return ret;
+
+			ret = drm_dp_mst_atomic_check(state);
+			if (ret == 0) {
+				vars[next_index].bpp_x16 = params[next_index].bw_range.max_target_bpp_x16;
+			} else {
+				vars[next_index].pbn -= initial_slack[next_index];
+				ret = drm_dp_atomic_find_time_slots(state,
+								    params[next_index].port->mgr,
+								    params[next_index].port,
+								    vars[next_index].pbn);
+				if (ret < 0)
+					return ret;
+			}
+		}
+
+		bpp_increased[next_index] = true;
+		remaining_to_increase--;
+	}
+	return 0;
+}
+
+static int try_disable_dsc(struct drm_atomic_state *state,
+			   struct dc_link *dc_link,
+			   struct dsc_mst_fairness_params *params,
+			   struct dsc_mst_fairness_vars *vars,
+			   int count,
+			   int k)
+{
+	int i;
+	bool tried[MAX_PIPES];
+	int kbps_increase[MAX_PIPES];
+	int max_kbps_increase;
+	int next_index;
+	int remaining_to_try = 0;
+	int ret;
+	uint16_t fec_overhead_multiplier_x1000 = get_fec_overhead_multiplier(dc_link);
+
+	for (i = 0; i < count; i++) {
+		if (vars[i + k].dsc_enabled
+				&& vars[i + k].bpp_x16 == params[i].bw_range.max_target_bpp_x16
+				&& params[i].clock_force_enable == DSC_CLK_FORCE_DEFAULT) {
+			kbps_increase[i] = params[i].bw_range.stream_kbps - params[i].bw_range.max_kbps;
+			tried[i] = false;
+			remaining_to_try += 1;
+		} else {
+			kbps_increase[i] = 0;
+			tried[i] = true;
+		}
+	}
+
+	while (remaining_to_try) {
+		next_index = -1;
+		max_kbps_increase = -1;
+		for (i = 0; i < count; i++) {
+			if (!tried[i]) {
+				if (max_kbps_increase == -1 || max_kbps_increase < kbps_increase[i]) {
+					max_kbps_increase = kbps_increase[i];
+					next_index = i;
+				}
+			}
+		}
+
+		if (next_index == -1)
+			break;
+
+		vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.stream_kbps, fec_overhead_multiplier_x1000);
+		ret = drm_dp_atomic_find_time_slots(state,
+						    params[next_index].port->mgr,
+						    params[next_index].port,
+						    vars[next_index].pbn);
+		if (ret < 0)
+			return ret;
+
+		ret = drm_dp_mst_atomic_check(state);
+		if (ret == 0) {
+			vars[next_index].dsc_enabled = false;
+			vars[next_index].bpp_x16 = 0;
+		} else {
+			vars[next_index].pbn = kbps_to_peak_pbn(params[next_index].bw_range.max_kbps, fec_overhead_multiplier_x1000);
+			ret = drm_dp_atomic_find_time_slots(state,
+							    params[next_index].port->mgr,
+							    params[next_index].port,
+							    vars[next_index].pbn);
+			if (ret < 0)
+				return ret;
+		}
+
+		tried[next_index] = true;
+		remaining_to_try--;
+	}
+	return 0;
+}
+
+static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state,
+					    struct dc_state *dc_state,
+					    struct dc_link *dc_link,
+					    struct dsc_mst_fairness_vars *vars,
+					    struct drm_dp_mst_topology_mgr *mgr,
+					    int *link_vars_start_index)
+{
+	struct dc_stream_state *stream;
+	struct dsc_mst_fairness_params params[MAX_PIPES];
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_state *mst_state = drm_atomic_get_mst_topology_state(state, mgr);
+	int count = 0;
+	int i, k, ret;
+	bool debugfs_overwrite = false;
+	uint16_t fec_overhead_multiplier_x1000 = get_fec_overhead_multiplier(dc_link);
+
+	memset(params, 0, sizeof(params));
+
+	if (IS_ERR(mst_state))
+		return PTR_ERR(mst_state);
+
+	/* Set up params */
+	for (i = 0; i < dc_state->stream_count; i++) {
+		struct dc_dsc_policy dsc_policy = {0};
+
+		stream = dc_state->streams[i];
+
+		if (stream->link != dc_link)
+			continue;
+
+		aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+		if (!aconnector)
+			continue;
+
+		if (!aconnector->mst_output_port)
+			continue;
+
+		stream->timing.flags.DSC = 0;
+
+		params[count].timing = &stream->timing;
+		params[count].sink = stream->sink;
+		params[count].aconnector = aconnector;
+		params[count].port = aconnector->mst_output_port;
+		params[count].clock_force_enable = aconnector->dsc_settings.dsc_force_enable;
+		if (params[count].clock_force_enable == DSC_CLK_FORCE_ENABLE)
+			debugfs_overwrite = true;
+		params[count].num_slices_h = aconnector->dsc_settings.dsc_num_slices_h;
+		params[count].num_slices_v = aconnector->dsc_settings.dsc_num_slices_v;
+		params[count].bpp_overwrite = aconnector->dsc_settings.dsc_bits_per_pixel;
+		params[count].compression_possible = stream->sink->dsc_caps.dsc_dec_caps.is_dsc_supported;
+		dc_dsc_get_policy_for_timing(params[count].timing, 0, &dsc_policy);
+		if (!dc_dsc_compute_bandwidth_range(
+				stream->sink->ctx->dc->res_pool->dscs[0],
+				stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
+				dsc_policy.min_target_bpp * 16,
+				dsc_policy.max_target_bpp * 16,
+				&stream->sink->dsc_caps.dsc_dec_caps,
+				&stream->timing,
+				dc_link_get_highest_encoding_format(dc_link),
+				&params[count].bw_range))
+			params[count].bw_range.stream_kbps = dc_bandwidth_in_kbps_from_timing(&stream->timing,
+					dc_link_get_highest_encoding_format(dc_link));
+
+		count++;
+	}
+
+	if (count == 0) {
+		ASSERT(0);
+		return 0;
+	}
+
+	/* k is start index of vars for current phy link used by mst hub */
+	k = *link_vars_start_index;
+	/* set vars start index for next mst hub phy link */
+	*link_vars_start_index += count;
+
+	/* Try no compression */
+	for (i = 0; i < count; i++) {
+		vars[i + k].aconnector = params[i].aconnector;
+		vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps, fec_overhead_multiplier_x1000);
+		vars[i + k].dsc_enabled = false;
+		vars[i + k].bpp_x16 = 0;
+		ret = drm_dp_atomic_find_time_slots(state, params[i].port->mgr, params[i].port,
+						    vars[i + k].pbn);
+		if (ret < 0)
+			return ret;
+	}
+	ret = drm_dp_mst_atomic_check(state);
+	if (ret == 0 && !debugfs_overwrite) {
+		set_dsc_configs_from_fairness_vars(params, vars, count, k);
+		return 0;
+	} else if (ret != -ENOSPC) {
+		return ret;
+	}
+
+	/* Try max compression */
+	for (i = 0; i < count; i++) {
+		if (params[i].compression_possible && params[i].clock_force_enable != DSC_CLK_FORCE_DISABLE) {
+			vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.min_kbps, fec_overhead_multiplier_x1000);
+			vars[i + k].dsc_enabled = true;
+			vars[i + k].bpp_x16 = params[i].bw_range.min_target_bpp_x16;
+			ret = drm_dp_atomic_find_time_slots(state, params[i].port->mgr,
+							    params[i].port, vars[i + k].pbn);
+			if (ret < 0)
+				return ret;
+		} else {
+			vars[i + k].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps, fec_overhead_multiplier_x1000);
+			vars[i + k].dsc_enabled = false;
+			vars[i + k].bpp_x16 = 0;
+			ret = drm_dp_atomic_find_time_slots(state, params[i].port->mgr,
+							    params[i].port, vars[i + k].pbn);
+			if (ret < 0)
+				return ret;
+		}
+	}
+	ret = drm_dp_mst_atomic_check(state);
+	if (ret != 0)
+		return ret;
+
+	/* Optimize degree of compression */
+	ret = increase_dsc_bpp(state, mst_state, dc_link, params, vars, count, k);
+	if (ret < 0)
+		return ret;
+
+	ret = try_disable_dsc(state, dc_link, params, vars, count, k);
+	if (ret < 0)
+		return ret;
+
+	set_dsc_configs_from_fairness_vars(params, vars, count, k);
+
+	return 0;
+}
+
+static bool is_dsc_need_re_compute(
+	struct drm_atomic_state *state,
+	struct dc_state *dc_state,
+	struct dc_link *dc_link)
+{
+	int i, j;
+	bool is_dsc_need_re_compute = false;
+	struct amdgpu_dm_connector *stream_on_link[MAX_PIPES];
+	int new_stream_on_link_num = 0;
+	struct amdgpu_dm_connector *aconnector;
+	struct dc_stream_state *stream;
+	const struct dc *dc = dc_link->dc;
+
+	/* only check phy used by dsc mst branch */
+	if (dc_link->type != dc_connection_mst_branch)
+		return false;
+
+	if (!(dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT ||
+		dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_PASSTHROUGH_SUPPORT))
+		return false;
+
+	for (i = 0; i < MAX_PIPES; i++)
+		stream_on_link[i] = NULL;
+
+	/* check if there is mode change in new request */
+	for (i = 0; i < dc_state->stream_count; i++) {
+		struct drm_crtc_state *new_crtc_state;
+		struct drm_connector_state *new_conn_state;
+
+		stream = dc_state->streams[i];
+		if (!stream)
+			continue;
+
+		/* check if stream using the same link for mst */
+		if (stream->link != dc_link)
+			continue;
+
+		aconnector = (struct amdgpu_dm_connector *) stream->dm_stream_context;
+		if (!aconnector)
+			continue;
+
+		stream_on_link[new_stream_on_link_num] = aconnector;
+		new_stream_on_link_num++;
+
+		new_conn_state = drm_atomic_get_new_connector_state(state, &aconnector->base);
+		if (!new_conn_state)
+			continue;
+
+		if (IS_ERR(new_conn_state))
+			continue;
+
+		if (!new_conn_state->crtc)
+			continue;
+
+		new_crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
+		if (!new_crtc_state)
+			continue;
+
+		if (IS_ERR(new_crtc_state))
+			continue;
+
+		if (new_crtc_state->enable && new_crtc_state->active) {
+			if (new_crtc_state->mode_changed || new_crtc_state->active_changed ||
+				new_crtc_state->connectors_changed)
+				return true;
+		}
+	}
+
+	/* check current_state if there stream on link but it is not in
+	 * new request state
+	 */
+	for (i = 0; i < dc->current_state->stream_count; i++) {
+		stream = dc->current_state->streams[i];
+		/* only check stream on the mst hub */
+		if (stream->link != dc_link)
+			continue;
+
+		aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+		if (!aconnector)
+			continue;
+
+		for (j = 0; j < new_stream_on_link_num; j++) {
+			if (stream_on_link[j]) {
+				if (aconnector == stream_on_link[j])
+					break;
+			}
+		}
+
+		if (j == new_stream_on_link_num) {
+			/* not in new state */
+			is_dsc_need_re_compute = true;
+			break;
+		}
+	}
+
+	return is_dsc_need_re_compute;
+}
+
+int compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+				      struct dc_state *dc_state,
+				      struct dsc_mst_fairness_vars *vars)
+{
+	int i, j;
+	struct dc_stream_state *stream;
+	bool computed_streams[MAX_PIPES];
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+	struct resource_pool *res_pool;
+	int link_vars_start_index = 0;
+	int ret = 0;
+
+	for (i = 0; i < dc_state->stream_count; i++)
+		computed_streams[i] = false;
+
+	for (i = 0; i < dc_state->stream_count; i++) {
+		stream = dc_state->streams[i];
+		res_pool = stream->ctx->dc->res_pool;
+
+		if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
+			continue;
+
+		aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+		if (!aconnector || !aconnector->dc_sink || !aconnector->mst_output_port)
+			continue;
+
+		if (!aconnector->dc_sink->dsc_caps.dsc_dec_caps.is_dsc_supported)
+			continue;
+
+		if (computed_streams[i])
+			continue;
+
+		if (res_pool->funcs->remove_stream_from_ctx &&
+		    res_pool->funcs->remove_stream_from_ctx(stream->ctx->dc, dc_state, stream) != DC_OK)
+			return -EINVAL;
+
+		if (!is_dsc_need_re_compute(state, dc_state, stream->link))
+			continue;
+
+		mst_mgr = aconnector->mst_output_port->mgr;
+		ret = compute_mst_dsc_configs_for_link(state, dc_state, stream->link, vars, mst_mgr,
+						       &link_vars_start_index);
+		if (ret != 0)
+			return ret;
+
+		for (j = 0; j < dc_state->stream_count; j++) {
+			if (dc_state->streams[j]->link == stream->link)
+				computed_streams[j] = true;
+		}
+	}
+
+	for (i = 0; i < dc_state->stream_count; i++) {
+		stream = dc_state->streams[i];
+
+		if (stream->timing.flags.DSC == 1)
+			if (dc_stream_add_dsc_to_resource(stream->ctx->dc, dc_state, stream) != DC_OK)
+				return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int pre_compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+						 struct dc_state *dc_state,
+						 struct dsc_mst_fairness_vars *vars)
+{
+	int i, j;
+	struct dc_stream_state *stream;
+	bool computed_streams[MAX_PIPES];
+	struct amdgpu_dm_connector *aconnector;
+	struct drm_dp_mst_topology_mgr *mst_mgr;
+	int link_vars_start_index = 0;
+	int ret = 0;
+
+	for (i = 0; i < dc_state->stream_count; i++)
+		computed_streams[i] = false;
+
+	for (i = 0; i < dc_state->stream_count; i++) {
+		stream = dc_state->streams[i];
+
+		if (stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST)
+			continue;
+
+		aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+
+		if (!aconnector || !aconnector->dc_sink || !aconnector->mst_output_port)
+			continue;
+
+		if (!aconnector->dc_sink->dsc_caps.dsc_dec_caps.is_dsc_supported)
+			continue;
+
+		if (computed_streams[i])
+			continue;
+
+		if (!is_dsc_need_re_compute(state, dc_state, stream->link))
+			continue;
+
+		mst_mgr = aconnector->mst_output_port->mgr;
+		ret = compute_mst_dsc_configs_for_link(state, dc_state, stream->link, vars, mst_mgr,
+						       &link_vars_start_index);
+		if (ret != 0)
+			return ret;
+
+		for (j = 0; j < dc_state->stream_count; j++) {
+			if (dc_state->streams[j]->link == stream->link)
+				computed_streams[j] = true;
+		}
+	}
+
+	return ret;
+}
+
+static int find_crtc_index_in_state_by_stream(struct drm_atomic_state *state,
+					      struct dc_stream_state *stream)
+{
+	int i;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *new_state, *old_state;
+
+	for_each_oldnew_crtc_in_state(state, crtc, old_state, new_state, i) {
+		struct dm_crtc_state *dm_state = to_dm_crtc_state(new_state);
+
+		if (dm_state->stream == stream)
+			return i;
+	}
+	return -1;
+}
+
+static bool is_link_to_dschub(struct dc_link *dc_link)
+{
+	union dpcd_dsc_basic_capabilities *dsc_caps =
+			&dc_link->dpcd_caps.dsc_caps.dsc_basic_caps;
+
+	/* only check phy used by dsc mst branch */
+	if (dc_link->type != dc_connection_mst_branch)
+		return false;
+
+	if (!(dsc_caps->fields.dsc_support.DSC_SUPPORT ||
+	      dsc_caps->fields.dsc_support.DSC_PASSTHROUGH_SUPPORT))
+		return false;
+	return true;
+}
+
+static bool is_dsc_precompute_needed(struct drm_atomic_state *state)
+{
+	int i;
+	struct drm_crtc *crtc;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+	bool ret = false;
+
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+		if (!amdgpu_dm_find_first_crtc_matching_connector(state, crtc)) {
+			ret =  false;
+			break;
+		}
+		if (dm_crtc_state->stream && dm_crtc_state->stream->link)
+			if (is_link_to_dschub(dm_crtc_state->stream->link))
+				ret = true;
+	}
+	return ret;
+}
+
+int pre_validate_dsc(struct drm_atomic_state *state,
+		     struct dm_atomic_state **dm_state_ptr,
+		     struct dsc_mst_fairness_vars *vars)
+{
+	int i;
+	struct dm_atomic_state *dm_state;
+	struct dc_state *local_dc_state = NULL;
+	int ret = 0;
+
+	if (!is_dsc_precompute_needed(state)) {
+		DRM_INFO_ONCE("DSC precompute is not needed.\n");
+		return 0;
+	}
+	ret = dm_atomic_get_state(state, dm_state_ptr);
+	if (ret != 0) {
+		DRM_INFO_ONCE("dm_atomic_get_state() failed\n");
+		return ret;
+	}
+	dm_state = *dm_state_ptr;
+
+	/*
+	 * create local vailable for dc_state. copy content of streams of dm_state->context
+	 * to local variable. make sure stream pointer of local variable not the same as stream
+	 * from dm_state->context.
+	 */
+
+	local_dc_state = kmemdup(dm_state->context, sizeof(struct dc_state), GFP_KERNEL);
+	if (!local_dc_state)
+		return -ENOMEM;
+
+	for (i = 0; i < local_dc_state->stream_count; i++) {
+		struct dc_stream_state *stream = dm_state->context->streams[i];
+		int ind = find_crtc_index_in_state_by_stream(state, stream);
+
+		if (ind >= 0) {
+			struct amdgpu_dm_connector *aconnector;
+			struct drm_connector_state *drm_new_conn_state;
+			struct dm_connector_state *dm_new_conn_state;
+			struct dm_crtc_state *dm_old_crtc_state;
+
+			aconnector =
+				amdgpu_dm_find_first_crtc_matching_connector(state,
+									     state->crtcs[ind].ptr);
+			drm_new_conn_state =
+				drm_atomic_get_new_connector_state(state,
+								   &aconnector->base);
+			dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
+			dm_old_crtc_state = to_dm_crtc_state(state->crtcs[ind].old_state);
+
+			local_dc_state->streams[i] =
+				create_validate_stream_for_sink(aconnector,
+								&state->crtcs[ind].new_state->mode,
+								dm_new_conn_state,
+								dm_old_crtc_state->stream);
+			if (local_dc_state->streams[i] == NULL) {
+				ret = -EINVAL;
+				break;
+			}
+		}
+	}
+
+	if (ret != 0)
+		goto clean_exit;
+
+	ret = pre_compute_mst_dsc_configs_for_state(state, local_dc_state, vars);
+	if (ret != 0) {
+		DRM_INFO_ONCE("pre_compute_mst_dsc_configs_for_state() failed\n");
+		ret = -EINVAL;
+		goto clean_exit;
+	}
+
+	/*
+	 * compare local_streams -> timing  with dm_state->context,
+	 * if the same set crtc_state->mode-change = 0;
+	 */
+	for (i = 0; i < local_dc_state->stream_count; i++) {
+		struct dc_stream_state *stream = dm_state->context->streams[i];
+
+		if (local_dc_state->streams[i] &&
+		    dc_is_timing_changed(stream, local_dc_state->streams[i])) {
+			DRM_INFO_ONCE("crtc[%d] needs mode_changed\n", i);
+		} else {
+			int ind = find_crtc_index_in_state_by_stream(state, stream);
+
+			if (ind >= 0)
+				state->crtcs[ind].new_state->mode_changed = 0;
+		}
+	}
+clean_exit:
+	for (i = 0; i < local_dc_state->stream_count; i++) {
+		struct dc_stream_state *stream = dm_state->context->streams[i];
+
+		if (local_dc_state->streams[i] != stream)
+			dc_stream_release(local_dc_state->streams[i]);
+	}
+
+	kfree(local_dc_state);
+
+	return ret;
+}
+
+static unsigned int kbps_from_pbn(unsigned int pbn)
+{
+	unsigned int kbps = pbn;
+
+	kbps *= (1000000 / PEAK_FACTOR_X1000);
+	kbps *= 8;
+	kbps *= 54;
+	kbps /= 64;
+
+	return kbps;
+}
+
+static bool is_dsc_common_config_possible(struct dc_stream_state *stream,
+					  struct dc_dsc_bw_range *bw_range)
+{
+	struct dc_dsc_policy dsc_policy = {0};
+
+	dc_dsc_get_policy_for_timing(&stream->timing, 0, &dsc_policy);
+	dc_dsc_compute_bandwidth_range(stream->sink->ctx->dc->res_pool->dscs[0],
+				       stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
+				       dsc_policy.min_target_bpp * 16,
+				       dsc_policy.max_target_bpp * 16,
+				       &stream->sink->dsc_caps.dsc_dec_caps,
+				       &stream->timing, dc_link_get_highest_encoding_format(stream->link), bw_range);
+
+	return bw_range->max_target_bpp_x16 && bw_range->min_target_bpp_x16;
+}
+
+enum dc_status dm_dp_mst_is_port_support_mode(
+	struct amdgpu_dm_connector *aconnector,
+	struct dc_stream_state *stream)
+{
+	int bpp, pbn, branch_max_throughput_mps = 0;
+	struct dc_link_settings cur_link_settings;
+	unsigned int end_to_end_bw_in_kbps = 0;
+	unsigned int upper_link_bw_in_kbps = 0, down_link_bw_in_kbps = 0;
+	unsigned int max_compressed_bw_in_kbps = 0;
+	struct dc_dsc_bw_range bw_range = {0};
+	uint16_t full_pbn = aconnector->mst_output_port->full_pbn;
+
+	/*
+	 * Consider the case with the depth of the mst topology tree is equal or less than 2
+	 * A. When dsc bitstream can be transmitted along the entire path
+	 *    1. dsc is possible between source and branch/leaf device (common dsc params is possible), AND
+	 *    2. dsc passthrough supported at MST branch, or
+	 *    3. dsc decoding supported at leaf MST device
+	 *    Use maximum dsc compression as bw constraint
+	 * B. When dsc bitstream cannot be transmitted along the entire path
+	 *    Use native bw as bw constraint
+	 */
+	if (is_dsc_common_config_possible(stream, &bw_range) &&
+	   (aconnector->mst_output_port->passthrough_aux ||
+	    aconnector->dsc_aux == &aconnector->mst_output_port->aux)) {
+		cur_link_settings = stream->link->verified_link_cap;
+
+		upper_link_bw_in_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
+							       &cur_link_settings);
+		down_link_bw_in_kbps = kbps_from_pbn(full_pbn);
+
+		/* pick the bottleneck */
+		end_to_end_bw_in_kbps = min(upper_link_bw_in_kbps,
+					    down_link_bw_in_kbps);
+
+		/*
+		 * use the maximum dsc compression bandwidth as the required
+		 * bandwidth for the mode
+		 */
+		max_compressed_bw_in_kbps = bw_range.min_kbps;
+
+		if (end_to_end_bw_in_kbps < max_compressed_bw_in_kbps) {
+			DRM_DEBUG_DRIVER("Mode does not fit into DSC pass-through bandwidth validation\n");
+			return DC_FAIL_BANDWIDTH_VALIDATE;
+		}
+	} else {
+		/* check if mode could be supported within full_pbn */
+		bpp = convert_dc_color_depth_into_bpc(stream->timing.display_color_depth) * 3;
+		pbn = drm_dp_calc_pbn_mode(stream->timing.pix_clk_100hz / 10, bpp << 4);
+		if (pbn > full_pbn)
+			return DC_FAIL_BANDWIDTH_VALIDATE;
+	}
+
+	/* check is mst dsc output bandwidth branch_overall_throughput_0_mps */
+	switch (stream->timing.pixel_encoding) {
+	case PIXEL_ENCODING_RGB:
+	case PIXEL_ENCODING_YCBCR444:
+		branch_max_throughput_mps =
+			aconnector->dc_sink->dsc_caps.dsc_dec_caps.branch_overall_throughput_0_mps;
+		break;
+	case PIXEL_ENCODING_YCBCR422:
+	case PIXEL_ENCODING_YCBCR420:
+		branch_max_throughput_mps =
+			aconnector->dc_sink->dsc_caps.dsc_dec_caps.branch_overall_throughput_1_mps;
+		break;
+	default:
+		break;
+	}
+
+	if (branch_max_throughput_mps != 0 &&
+		((stream->timing.pix_clk_100hz / 10) >  branch_max_throughput_mps * 1000))
+		return DC_FAIL_BANDWIDTH_VALIDATE;
+
+	return DC_OK;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
new file mode 100644
index 000000000..37c820ab0
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_AMDGPU_DM_MST_TYPES_H__
+#define __DAL_AMDGPU_DM_MST_TYPES_H__
+
+#define DP_BRANCH_DEVICE_ID_90CC24 0x90CC24
+
+#define SYNAPTICS_RC_COMMAND       0x4B2
+#define SYNAPTICS_RC_RESULT        0x4B3
+#define SYNAPTICS_RC_LENGTH        0x4B8
+#define SYNAPTICS_RC_OFFSET        0x4BC
+#define SYNAPTICS_RC_DATA          0x4C0
+
+#define DP_BRANCH_VENDOR_SPECIFIC_START 0x50C
+
+/**
+ * Panamera MST Hub detection
+ * Offset DPCD 050Eh == 0x5A indicates cascaded MST hub case
+ * Check from beginning of branch device vendor specific field (050Ch)
+ */
+#define IS_SYNAPTICS_PANAMERA(branchDevName) (((int)branchDevName[4] & 0xF0) == 0x50 ? 1 : 0)
+#define BRANCH_HW_REVISION_PANAMERA_A2 0x10
+#define SYNAPTICS_CASCADED_HUB_ID  0x5A
+#define IS_SYNAPTICS_CASCADED_PANAMERA(devName, data) ((IS_SYNAPTICS_PANAMERA(devName) && ((int)data[2] == SYNAPTICS_CASCADED_HUB_ID)) ? 1 : 0)
+
+#define PBN_FEC_OVERHEAD_MULTIPLIER_8B_10B	1031
+#define PBN_FEC_OVERHEAD_MULTIPLIER_128B_132B	1000
+
+enum mst_msg_ready_type {
+	NONE_MSG_RDY_EVENT = 0,
+	DOWN_REP_MSG_RDY_EVENT = 1,
+	UP_REQ_MSG_RDY_EVENT = 2,
+	DOWN_OR_UP_MSG_RDY_EVENT = 3
+};
+
+struct amdgpu_display_manager;
+struct amdgpu_dm_connector;
+
+int dm_mst_get_pbn_divider(struct dc_link *link);
+
+void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
+				       struct amdgpu_dm_connector *aconnector,
+				       int link_index);
+
+void
+dm_dp_create_fake_mst_encoders(struct amdgpu_device *adev);
+
+void dm_handle_mst_sideband_msg_ready_event(
+	struct drm_dp_mst_topology_mgr *mgr,
+	enum mst_msg_ready_type msg_rdy_type);
+
+struct dsc_mst_fairness_vars {
+	int pbn;
+	bool dsc_enabled;
+	int bpp_x16;
+	struct amdgpu_dm_connector *aconnector;
+};
+
+int compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
+				      struct dc_state *dc_state,
+				      struct dsc_mst_fairness_vars *vars);
+
+bool needs_dsc_aux_workaround(struct dc_link *link);
+
+int pre_validate_dsc(struct drm_atomic_state *state,
+		     struct dm_atomic_state **dm_state_ptr,
+		     struct dsc_mst_fairness_vars *vars);
+
+enum dc_status dm_dp_mst_is_port_support_mode(
+	struct amdgpu_dm_connector *aconnector,
+	struct dc_stream_state *stream);
+
+#endif
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
new file mode 100644
index 000000000..cc74dd69a
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -0,0 +1,1534 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_blend.h>
+#include <drm/drm_gem_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+#include <drm/drm_fourcc.h>
+
+#include "amdgpu.h"
+#include "dal_asic_id.h"
+#include "amdgpu_display.h"
+#include "amdgpu_dm_trace.h"
+#include "amdgpu_dm_plane.h"
+#include "gc/gc_11_0_0_offset.h"
+#include "gc/gc_11_0_0_sh_mask.h"
+
+/*
+ * TODO: these are currently initialized to rgb formats only.
+ * For future use cases we should either initialize them dynamically based on
+ * plane capabilities, or initialize this array to all formats, so internal drm
+ * check will succeed, and let DC implement proper check
+ */
+static const uint32_t rgb_formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_RGBA8888,
+	DRM_FORMAT_XRGB2101010,
+	DRM_FORMAT_XBGR2101010,
+	DRM_FORMAT_ARGB2101010,
+	DRM_FORMAT_ABGR2101010,
+	DRM_FORMAT_XRGB16161616,
+	DRM_FORMAT_XBGR16161616,
+	DRM_FORMAT_ARGB16161616,
+	DRM_FORMAT_ABGR16161616,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_RGB565,
+};
+
+static const uint32_t overlay_formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_RGBA8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_NV21,
+	DRM_FORMAT_NV12,
+	DRM_FORMAT_P010
+};
+
+static const uint32_t video_formats[] = {
+	DRM_FORMAT_NV21,
+	DRM_FORMAT_NV12,
+	DRM_FORMAT_P010
+};
+
+static const u32 cursor_formats[] = {
+	DRM_FORMAT_ARGB8888
+};
+
+enum dm_micro_swizzle {
+	MICRO_SWIZZLE_Z = 0,
+	MICRO_SWIZZLE_S = 1,
+	MICRO_SWIZZLE_D = 2,
+	MICRO_SWIZZLE_R = 3
+};
+
+const struct drm_format_info *amdgpu_dm_plane_get_format_info(const struct drm_mode_fb_cmd2 *cmd)
+{
+	return amdgpu_lookup_format_info(cmd->pixel_format, cmd->modifier[0]);
+}
+
+void amdgpu_dm_plane_fill_blending_from_plane_state(const struct drm_plane_state *plane_state,
+			       bool *per_pixel_alpha, bool *pre_multiplied_alpha,
+			       bool *global_alpha, int *global_alpha_value)
+{
+	*per_pixel_alpha = false;
+	*pre_multiplied_alpha = true;
+	*global_alpha = false;
+	*global_alpha_value = 0xff;
+
+	if (plane_state->plane->type != DRM_PLANE_TYPE_OVERLAY)
+		return;
+
+	if (plane_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI ||
+		plane_state->pixel_blend_mode == DRM_MODE_BLEND_COVERAGE) {
+		static const uint32_t alpha_formats[] = {
+			DRM_FORMAT_ARGB8888,
+			DRM_FORMAT_RGBA8888,
+			DRM_FORMAT_ABGR8888,
+			DRM_FORMAT_ARGB2101010,
+			DRM_FORMAT_ABGR2101010,
+			DRM_FORMAT_ARGB16161616,
+			DRM_FORMAT_ABGR16161616,
+			DRM_FORMAT_ARGB16161616F,
+		};
+		uint32_t format = plane_state->fb->format->format;
+		unsigned int i;
+
+		for (i = 0; i < ARRAY_SIZE(alpha_formats); ++i) {
+			if (format == alpha_formats[i]) {
+				*per_pixel_alpha = true;
+				break;
+			}
+		}
+
+		if (*per_pixel_alpha && plane_state->pixel_blend_mode == DRM_MODE_BLEND_COVERAGE)
+			*pre_multiplied_alpha = false;
+	}
+
+	if (plane_state->alpha < 0xffff) {
+		*global_alpha = true;
+		*global_alpha_value = plane_state->alpha >> 8;
+	}
+}
+
+static void add_modifier(uint64_t **mods, uint64_t *size, uint64_t *cap, uint64_t mod)
+{
+	if (!*mods)
+		return;
+
+	if (*cap - *size < 1) {
+		uint64_t new_cap = *cap * 2;
+		uint64_t *new_mods = kmalloc(new_cap * sizeof(uint64_t), GFP_KERNEL);
+
+		if (!new_mods) {
+			kfree(*mods);
+			*mods = NULL;
+			return;
+		}
+
+		memcpy(new_mods, *mods, sizeof(uint64_t) * *size);
+		kfree(*mods);
+		*mods = new_mods;
+		*cap = new_cap;
+	}
+
+	(*mods)[*size] = mod;
+	*size += 1;
+}
+
+static bool modifier_has_dcc(uint64_t modifier)
+{
+	return IS_AMD_FMT_MOD(modifier) && AMD_FMT_MOD_GET(DCC, modifier);
+}
+
+static unsigned int modifier_gfx9_swizzle_mode(uint64_t modifier)
+{
+	if (modifier == DRM_FORMAT_MOD_LINEAR)
+		return 0;
+
+	return AMD_FMT_MOD_GET(TILE, modifier);
+}
+
+static void fill_gfx8_tiling_info_from_flags(union dc_tiling_info *tiling_info,
+				 uint64_t tiling_flags)
+{
+	/* Fill GFX8 params */
+	if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) {
+		unsigned int bankw, bankh, mtaspect, tile_split, num_banks;
+
+		bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH);
+		bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT);
+		mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT);
+		tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT);
+		num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS);
+
+		/* XXX fix me for VI */
+		tiling_info->gfx8.num_banks = num_banks;
+		tiling_info->gfx8.array_mode =
+				DC_ARRAY_2D_TILED_THIN1;
+		tiling_info->gfx8.tile_split = tile_split;
+		tiling_info->gfx8.bank_width = bankw;
+		tiling_info->gfx8.bank_height = bankh;
+		tiling_info->gfx8.tile_aspect = mtaspect;
+		tiling_info->gfx8.tile_mode =
+				DC_ADDR_SURF_MICRO_TILING_DISPLAY;
+	} else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE)
+			== DC_ARRAY_1D_TILED_THIN1) {
+		tiling_info->gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1;
+	}
+
+	tiling_info->gfx8.pipe_config =
+			AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG);
+}
+
+static void fill_gfx9_tiling_info_from_device(const struct amdgpu_device *adev,
+				  union dc_tiling_info *tiling_info)
+{
+	/* Fill GFX9 params */
+	tiling_info->gfx9.num_pipes =
+		adev->gfx.config.gb_addr_config_fields.num_pipes;
+	tiling_info->gfx9.num_banks =
+		adev->gfx.config.gb_addr_config_fields.num_banks;
+	tiling_info->gfx9.pipe_interleave =
+		adev->gfx.config.gb_addr_config_fields.pipe_interleave_size;
+	tiling_info->gfx9.num_shader_engines =
+		adev->gfx.config.gb_addr_config_fields.num_se;
+	tiling_info->gfx9.max_compressed_frags =
+		adev->gfx.config.gb_addr_config_fields.max_compress_frags;
+	tiling_info->gfx9.num_rb_per_se =
+		adev->gfx.config.gb_addr_config_fields.num_rb_per_se;
+	tiling_info->gfx9.shaderEnable = 1;
+	if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0))
+		tiling_info->gfx9.num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs;
+}
+
+static void fill_gfx9_tiling_info_from_modifier(const struct amdgpu_device *adev,
+				    union dc_tiling_info *tiling_info,
+				    uint64_t modifier)
+{
+	unsigned int mod_bank_xor_bits = AMD_FMT_MOD_GET(BANK_XOR_BITS, modifier);
+	unsigned int mod_pipe_xor_bits = AMD_FMT_MOD_GET(PIPE_XOR_BITS, modifier);
+	unsigned int pkrs_log2 = AMD_FMT_MOD_GET(PACKERS, modifier);
+	unsigned int pipes_log2;
+
+	pipes_log2 = min(5u, mod_pipe_xor_bits);
+
+	fill_gfx9_tiling_info_from_device(adev, tiling_info);
+
+	if (!IS_AMD_FMT_MOD(modifier))
+		return;
+
+	tiling_info->gfx9.num_pipes = 1u << pipes_log2;
+	tiling_info->gfx9.num_shader_engines = 1u << (mod_pipe_xor_bits - pipes_log2);
+
+	if (adev->family >= AMDGPU_FAMILY_NV) {
+		tiling_info->gfx9.num_pkrs = 1u << pkrs_log2;
+	} else {
+		tiling_info->gfx9.num_banks = 1u << mod_bank_xor_bits;
+
+		/* for DCC we know it isn't rb aligned, so rb_per_se doesn't matter. */
+	}
+}
+
+static int validate_dcc(struct amdgpu_device *adev,
+	     const enum surface_pixel_format format,
+	     const enum dc_rotation_angle rotation,
+	     const union dc_tiling_info *tiling_info,
+	     const struct dc_plane_dcc_param *dcc,
+	     const struct dc_plane_address *address,
+	     const struct plane_size *plane_size)
+{
+	struct dc *dc = adev->dm.dc;
+	struct dc_dcc_surface_param input;
+	struct dc_surface_dcc_cap output;
+
+	memset(&input, 0, sizeof(input));
+	memset(&output, 0, sizeof(output));
+
+	if (!dcc->enable)
+		return 0;
+
+	if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN ||
+	    !dc->cap_funcs.get_dcc_compression_cap)
+		return -EINVAL;
+
+	input.format = format;
+	input.surface_size.width = plane_size->surface_size.width;
+	input.surface_size.height = plane_size->surface_size.height;
+	input.swizzle_mode = tiling_info->gfx9.swizzle;
+
+	if (rotation == ROTATION_ANGLE_0 || rotation == ROTATION_ANGLE_180)
+		input.scan = SCAN_DIRECTION_HORIZONTAL;
+	else if (rotation == ROTATION_ANGLE_90 || rotation == ROTATION_ANGLE_270)
+		input.scan = SCAN_DIRECTION_VERTICAL;
+
+	if (!dc->cap_funcs.get_dcc_compression_cap(dc, &input, &output))
+		return -EINVAL;
+
+	if (!output.capable)
+		return -EINVAL;
+
+	if (dcc->independent_64b_blks == 0 &&
+	    output.grph.rgb.independent_64b_blks != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int fill_gfx9_plane_attributes_from_modifiers(struct amdgpu_device *adev,
+					  const struct amdgpu_framebuffer *afb,
+					  const enum surface_pixel_format format,
+					  const enum dc_rotation_angle rotation,
+					  const struct plane_size *plane_size,
+					  union dc_tiling_info *tiling_info,
+					  struct dc_plane_dcc_param *dcc,
+					  struct dc_plane_address *address,
+					  const bool force_disable_dcc)
+{
+	const uint64_t modifier = afb->base.modifier;
+	int ret = 0;
+
+	fill_gfx9_tiling_info_from_modifier(adev, tiling_info, modifier);
+	tiling_info->gfx9.swizzle = modifier_gfx9_swizzle_mode(modifier);
+
+	if (modifier_has_dcc(modifier) && !force_disable_dcc) {
+		uint64_t dcc_address = afb->address + afb->base.offsets[1];
+		bool independent_64b_blks = AMD_FMT_MOD_GET(DCC_INDEPENDENT_64B, modifier);
+		bool independent_128b_blks = AMD_FMT_MOD_GET(DCC_INDEPENDENT_128B, modifier);
+
+		dcc->enable = 1;
+		dcc->meta_pitch = afb->base.pitches[1];
+		dcc->independent_64b_blks = independent_64b_blks;
+		if (AMD_FMT_MOD_GET(TILE_VERSION, modifier) >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) {
+			if (independent_64b_blks && independent_128b_blks)
+				dcc->dcc_ind_blk = hubp_ind_block_64b_no_128bcl;
+			else if (independent_128b_blks)
+				dcc->dcc_ind_blk = hubp_ind_block_128b;
+			else if (independent_64b_blks && !independent_128b_blks)
+				dcc->dcc_ind_blk = hubp_ind_block_64b;
+			else
+				dcc->dcc_ind_blk = hubp_ind_block_unconstrained;
+		} else {
+			if (independent_64b_blks)
+				dcc->dcc_ind_blk = hubp_ind_block_64b;
+			else
+				dcc->dcc_ind_blk = hubp_ind_block_unconstrained;
+		}
+
+		address->grph.meta_addr.low_part = lower_32_bits(dcc_address);
+		address->grph.meta_addr.high_part = upper_32_bits(dcc_address);
+	}
+
+	ret = validate_dcc(adev, format, rotation, tiling_info, dcc, address, plane_size);
+	if (ret)
+		drm_dbg_kms(adev_to_drm(adev), "validate_dcc: returned error: %d\n", ret);
+
+	return ret;
+}
+
+static void add_gfx10_1_modifiers(const struct amdgpu_device *adev,
+		      uint64_t **mods, uint64_t *size, uint64_t *capacity)
+{
+	int pipe_xor_bits = ilog2(adev->gfx.config.gb_addr_config_fields.num_pipes);
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_RETILE, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits));
+
+
+	/* Only supported for 64bpp, will be filtered in dm_plane_format_mod_supported */
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_D) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+}
+
+static void add_gfx9_modifiers(const struct amdgpu_device *adev,
+		   uint64_t **mods, uint64_t *size, uint64_t *capacity)
+{
+	int pipes = ilog2(adev->gfx.config.gb_addr_config_fields.num_pipes);
+	int pipe_xor_bits = min(8, pipes +
+				ilog2(adev->gfx.config.gb_addr_config_fields.num_se));
+	int bank_xor_bits = min(8 - pipe_xor_bits,
+				ilog2(adev->gfx.config.gb_addr_config_fields.num_banks));
+	int rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) +
+		 ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se);
+
+
+	if (adev->family == AMDGPU_FAMILY_RV) {
+		/* Raven2 and later */
+		bool has_constant_encode = adev->asic_type > CHIP_RAVEN || adev->external_rev_id >= 0x81;
+
+		/*
+		 * No _D DCC swizzles yet because we only allow 32bpp, which
+		 * doesn't support _D on DCN
+		 */
+
+		if (has_constant_encode) {
+			add_modifier(mods, size, capacity, AMD_FMT_MOD |
+				    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+				    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+				    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+				    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
+				    AMD_FMT_MOD_SET(DCC, 1) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+				    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B) |
+				    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1));
+		}
+
+		add_modifier(mods, size, capacity, AMD_FMT_MOD |
+			    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+			    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+			    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+			    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
+			    AMD_FMT_MOD_SET(DCC, 1) |
+			    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+			    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B) |
+			    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 0));
+
+		if (has_constant_encode) {
+			add_modifier(mods, size, capacity, AMD_FMT_MOD |
+				    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+				    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+				    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+				    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
+				    AMD_FMT_MOD_SET(DCC, 1) |
+				    AMD_FMT_MOD_SET(DCC_RETILE, 1) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+				    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B) |
+
+				    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+				    AMD_FMT_MOD_SET(RB, rb) |
+				    AMD_FMT_MOD_SET(PIPE, pipes));
+		}
+
+		add_modifier(mods, size, capacity, AMD_FMT_MOD |
+			    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+			    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+			    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+			    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
+			    AMD_FMT_MOD_SET(DCC, 1) |
+			    AMD_FMT_MOD_SET(DCC_RETILE, 1) |
+			    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+			    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B) |
+			    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 0) |
+			    AMD_FMT_MOD_SET(RB, rb) |
+			    AMD_FMT_MOD_SET(PIPE, pipes));
+	}
+
+	/*
+	 * Only supported for 64bpp on Raven, will be filtered on format in
+	 * dm_plane_format_mod_supported.
+	 */
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_D_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits));
+
+	if (adev->family == AMDGPU_FAMILY_RV) {
+		add_modifier(mods, size, capacity, AMD_FMT_MOD |
+			    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+			    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9) |
+			    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+			    AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits));
+	}
+
+	/*
+	 * Only supported for 64bpp on Raven, will be filtered on format in
+	 * dm_plane_format_mod_supported.
+	 */
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_D) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+
+	if (adev->family == AMDGPU_FAMILY_RV) {
+		add_modifier(mods, size, capacity, AMD_FMT_MOD |
+			    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S) |
+			    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+	}
+}
+
+static void add_gfx10_3_modifiers(const struct amdgpu_device *adev,
+		      uint64_t **mods, uint64_t *size, uint64_t *capacity)
+{
+	int pipe_xor_bits = ilog2(adev->gfx.config.gb_addr_config_fields.num_pipes);
+	int pkrs = ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs);
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_128B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_RETILE, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs) |
+		    AMD_FMT_MOD_SET(DCC, 1) |
+		    AMD_FMT_MOD_SET(DCC_RETILE, 1) |
+		    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, 1) |
+		    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+		    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_128B));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_R_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S_X) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS) |
+		    AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+		    AMD_FMT_MOD_SET(PACKERS, pkrs));
+
+	/* Only supported for 64bpp, will be filtered in dm_plane_format_mod_supported */
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_D) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+		    AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_S) |
+		    AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX9));
+}
+
+static void add_gfx11_modifiers(struct amdgpu_device *adev,
+		      uint64_t **mods, uint64_t *size, uint64_t *capacity)
+{
+	int num_pipes = 0;
+	int pipe_xor_bits = 0;
+	int num_pkrs = 0;
+	int pkrs = 0;
+	u32 gb_addr_config;
+	u8 i = 0;
+	unsigned int swizzle_r_x;
+	uint64_t modifier_r_x;
+	uint64_t modifier_dcc_best;
+	uint64_t modifier_dcc_4k;
+
+	/* TODO: GFX11 IP HW init hasnt finish and we get zero if we read from
+	 * adev->gfx.config.gb_addr_config_fields.num_{pkrs,pipes}
+	 */
+	gb_addr_config = RREG32_SOC15(GC, 0, regGB_ADDR_CONFIG);
+	ASSERT(gb_addr_config != 0);
+
+	num_pkrs = 1 << REG_GET_FIELD(gb_addr_config, GB_ADDR_CONFIG, NUM_PKRS);
+	pkrs = ilog2(num_pkrs);
+	num_pipes = 1 << REG_GET_FIELD(gb_addr_config, GB_ADDR_CONFIG, NUM_PIPES);
+	pipe_xor_bits = ilog2(num_pipes);
+
+	for (i = 0; i < 2; i++) {
+		/* Insert the best one first. */
+		/* R_X swizzle modes are the best for rendering and DCC requires them. */
+		if (num_pipes > 16)
+			swizzle_r_x = !i ? AMD_FMT_MOD_TILE_GFX11_256K_R_X : AMD_FMT_MOD_TILE_GFX9_64K_R_X;
+		else
+			swizzle_r_x = !i ? AMD_FMT_MOD_TILE_GFX9_64K_R_X : AMD_FMT_MOD_TILE_GFX11_256K_R_X;
+
+		modifier_r_x = AMD_FMT_MOD |
+			       AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX11) |
+			       AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+			       AMD_FMT_MOD_SET(TILE, swizzle_r_x) |
+			       AMD_FMT_MOD_SET(PACKERS, pkrs);
+
+		/* DCC_CONSTANT_ENCODE is not set because it can't vary with gfx11 (it's implied to be 1). */
+		modifier_dcc_best = modifier_r_x | AMD_FMT_MOD_SET(DCC, 1) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 0) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+				    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_128B);
+
+		/* DCC settings for 4K and greater resolutions. (required by display hw) */
+		modifier_dcc_4k = modifier_r_x | AMD_FMT_MOD_SET(DCC, 1) |
+				  AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, 1) |
+				  AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, 1) |
+				  AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, AMD_FMT_MOD_DCC_BLOCK_64B);
+
+		add_modifier(mods, size, capacity, modifier_dcc_best);
+		add_modifier(mods, size, capacity, modifier_dcc_4k);
+
+		add_modifier(mods, size, capacity, modifier_dcc_best | AMD_FMT_MOD_SET(DCC_RETILE, 1));
+		add_modifier(mods, size, capacity, modifier_dcc_4k | AMD_FMT_MOD_SET(DCC_RETILE, 1));
+
+		add_modifier(mods, size, capacity, modifier_r_x);
+	}
+
+	add_modifier(mods, size, capacity, AMD_FMT_MOD |
+			AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX11) |
+			AMD_FMT_MOD_SET(TILE, AMD_FMT_MOD_TILE_GFX9_64K_D));
+}
+
+static int get_plane_modifiers(struct amdgpu_device *adev, unsigned int plane_type, uint64_t **mods)
+{
+	uint64_t size = 0, capacity = 128;
+	*mods = NULL;
+
+	/* We have not hooked up any pre-GFX9 modifiers. */
+	if (adev->family < AMDGPU_FAMILY_AI)
+		return 0;
+
+	*mods = kmalloc(capacity * sizeof(uint64_t), GFP_KERNEL);
+
+	if (plane_type == DRM_PLANE_TYPE_CURSOR) {
+		add_modifier(mods, &size, &capacity, DRM_FORMAT_MOD_LINEAR);
+		add_modifier(mods, &size, &capacity, DRM_FORMAT_MOD_INVALID);
+		return *mods ? 0 : -ENOMEM;
+	}
+
+	switch (adev->family) {
+	case AMDGPU_FAMILY_AI:
+	case AMDGPU_FAMILY_RV:
+		add_gfx9_modifiers(adev, mods, &size, &capacity);
+		break;
+	case AMDGPU_FAMILY_NV:
+	case AMDGPU_FAMILY_VGH:
+	case AMDGPU_FAMILY_YC:
+	case AMDGPU_FAMILY_GC_10_3_6:
+	case AMDGPU_FAMILY_GC_10_3_7:
+		if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0))
+			add_gfx10_3_modifiers(adev, mods, &size, &capacity);
+		else
+			add_gfx10_1_modifiers(adev, mods, &size, &capacity);
+		break;
+	case AMDGPU_FAMILY_GC_11_0_0:
+	case AMDGPU_FAMILY_GC_11_0_1:
+		add_gfx11_modifiers(adev, mods, &size, &capacity);
+		break;
+	}
+
+	add_modifier(mods, &size, &capacity, DRM_FORMAT_MOD_LINEAR);
+
+	/* INVALID marks the end of the list. */
+	add_modifier(mods, &size, &capacity, DRM_FORMAT_MOD_INVALID);
+
+	if (!*mods)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int get_plane_formats(const struct drm_plane *plane,
+			     const struct dc_plane_cap *plane_cap,
+			     uint32_t *formats, int max_formats)
+{
+	int i, num_formats = 0;
+
+	/*
+	 * TODO: Query support for each group of formats directly from
+	 * DC plane caps. This will require adding more formats to the
+	 * caps list.
+	 */
+
+	if (plane->type == DRM_PLANE_TYPE_PRIMARY ||
+		(plane_cap && plane_cap->type == DC_PLANE_TYPE_DCN_UNIVERSAL && plane->type != DRM_PLANE_TYPE_CURSOR)) {
+		for (i = 0; i < ARRAY_SIZE(rgb_formats); ++i) {
+			if (num_formats >= max_formats)
+				break;
+
+			formats[num_formats++] = rgb_formats[i];
+		}
+
+		if (plane_cap && plane_cap->pixel_format_support.nv12)
+			formats[num_formats++] = DRM_FORMAT_NV12;
+		if (plane_cap && plane_cap->pixel_format_support.p010)
+			formats[num_formats++] = DRM_FORMAT_P010;
+		if (plane_cap && plane_cap->pixel_format_support.fp16) {
+			formats[num_formats++] = DRM_FORMAT_XRGB16161616F;
+			formats[num_formats++] = DRM_FORMAT_ARGB16161616F;
+			formats[num_formats++] = DRM_FORMAT_XBGR16161616F;
+			formats[num_formats++] = DRM_FORMAT_ABGR16161616F;
+		}
+	} else {
+		switch (plane->type) {
+		case DRM_PLANE_TYPE_OVERLAY:
+			for (i = 0; i < ARRAY_SIZE(overlay_formats); ++i) {
+				if (num_formats >= max_formats)
+					break;
+
+				formats[num_formats++] = overlay_formats[i];
+			}
+			break;
+
+		case DRM_PLANE_TYPE_CURSOR:
+			for (i = 0; i < ARRAY_SIZE(cursor_formats); ++i) {
+				if (num_formats >= max_formats)
+					break;
+
+				formats[num_formats++] = cursor_formats[i];
+			}
+			break;
+
+		default:
+			break;
+		}
+	}
+
+	return num_formats;
+}
+
+int amdgpu_dm_plane_fill_plane_buffer_attributes(struct amdgpu_device *adev,
+			     const struct amdgpu_framebuffer *afb,
+			     const enum surface_pixel_format format,
+			     const enum dc_rotation_angle rotation,
+			     const uint64_t tiling_flags,
+			     union dc_tiling_info *tiling_info,
+			     struct plane_size *plane_size,
+			     struct dc_plane_dcc_param *dcc,
+			     struct dc_plane_address *address,
+			     bool tmz_surface,
+			     bool force_disable_dcc)
+{
+	const struct drm_framebuffer *fb = &afb->base;
+	int ret;
+
+	memset(tiling_info, 0, sizeof(*tiling_info));
+	memset(plane_size, 0, sizeof(*plane_size));
+	memset(dcc, 0, sizeof(*dcc));
+	memset(address, 0, sizeof(*address));
+
+	address->tmz_surface = tmz_surface;
+
+	if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
+		uint64_t addr = afb->address + fb->offsets[0];
+
+		plane_size->surface_size.x = 0;
+		plane_size->surface_size.y = 0;
+		plane_size->surface_size.width = fb->width;
+		plane_size->surface_size.height = fb->height;
+		plane_size->surface_pitch =
+			fb->pitches[0] / fb->format->cpp[0];
+
+		address->type = PLN_ADDR_TYPE_GRAPHICS;
+		address->grph.addr.low_part = lower_32_bits(addr);
+		address->grph.addr.high_part = upper_32_bits(addr);
+	} else if (format < SURFACE_PIXEL_FORMAT_INVALID) {
+		uint64_t luma_addr = afb->address + fb->offsets[0];
+		uint64_t chroma_addr = afb->address + fb->offsets[1];
+
+		plane_size->surface_size.x = 0;
+		plane_size->surface_size.y = 0;
+		plane_size->surface_size.width = fb->width;
+		plane_size->surface_size.height = fb->height;
+		plane_size->surface_pitch =
+			fb->pitches[0] / fb->format->cpp[0];
+
+		plane_size->chroma_size.x = 0;
+		plane_size->chroma_size.y = 0;
+		/* TODO: set these based on surface format */
+		plane_size->chroma_size.width = fb->width / 2;
+		plane_size->chroma_size.height = fb->height / 2;
+
+		plane_size->chroma_pitch =
+			fb->pitches[1] / fb->format->cpp[1];
+
+		address->type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
+		address->video_progressive.luma_addr.low_part =
+			lower_32_bits(luma_addr);
+		address->video_progressive.luma_addr.high_part =
+			upper_32_bits(luma_addr);
+		address->video_progressive.chroma_addr.low_part =
+			lower_32_bits(chroma_addr);
+		address->video_progressive.chroma_addr.high_part =
+			upper_32_bits(chroma_addr);
+	}
+
+	if (adev->family >= AMDGPU_FAMILY_AI) {
+		ret = fill_gfx9_plane_attributes_from_modifiers(adev, afb, format,
+								rotation, plane_size,
+								tiling_info, dcc,
+								address,
+								force_disable_dcc);
+		if (ret)
+			return ret;
+	} else {
+		fill_gfx8_tiling_info_from_flags(tiling_info, tiling_flags);
+	}
+
+	return 0;
+}
+
+static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
+				      struct drm_plane_state *new_state)
+{
+	struct amdgpu_framebuffer *afb;
+	struct drm_gem_object *obj;
+	struct amdgpu_device *adev;
+	struct amdgpu_bo *rbo;
+	struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old;
+	uint32_t domain;
+	int r;
+
+	if (!new_state->fb) {
+		DRM_DEBUG_KMS("No FB bound\n");
+		return 0;
+	}
+
+	afb = to_amdgpu_framebuffer(new_state->fb);
+	obj = new_state->fb->obj[0];
+	rbo = gem_to_amdgpu_bo(obj);
+	adev = amdgpu_ttm_adev(rbo->tbo.bdev);
+
+	r = amdgpu_bo_reserve(rbo, true);
+	if (r) {
+		dev_err(adev->dev, "fail to reserve bo (%d)\n", r);
+		return r;
+	}
+
+	r = dma_resv_reserve_fences(rbo->tbo.base.resv, 1);
+	if (r) {
+		dev_err(adev->dev, "reserving fence slot failed (%d)\n", r);
+		goto error_unlock;
+	}
+
+	if (plane->type != DRM_PLANE_TYPE_CURSOR)
+		domain = amdgpu_display_supported_domains(adev, rbo->flags);
+	else
+		domain = AMDGPU_GEM_DOMAIN_VRAM;
+
+	r = amdgpu_bo_pin(rbo, domain);
+	if (unlikely(r != 0)) {
+		if (r != -ERESTARTSYS)
+			DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
+		goto error_unlock;
+	}
+
+	r = amdgpu_ttm_alloc_gart(&rbo->tbo);
+	if (unlikely(r != 0)) {
+		DRM_ERROR("%p bind failed\n", rbo);
+		goto error_unpin;
+	}
+
+	r = drm_gem_plane_helper_prepare_fb(plane, new_state);
+	if (unlikely(r != 0))
+		goto error_unpin;
+
+	amdgpu_bo_unreserve(rbo);
+
+	afb->address = amdgpu_bo_gpu_offset(rbo);
+
+	amdgpu_bo_ref(rbo);
+
+	/**
+	 * We don't do surface updates on planes that have been newly created,
+	 * but we also don't have the afb->address during atomic check.
+	 *
+	 * Fill in buffer attributes depending on the address here, but only on
+	 * newly created planes since they're not being used by DC yet and this
+	 * won't modify global state.
+	 */
+	dm_plane_state_old = to_dm_plane_state(plane->state);
+	dm_plane_state_new = to_dm_plane_state(new_state);
+
+	if (dm_plane_state_new->dc_state &&
+	    dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) {
+		struct dc_plane_state *plane_state =
+			dm_plane_state_new->dc_state;
+		bool force_disable_dcc = !plane_state->dcc.enable;
+
+		amdgpu_dm_plane_fill_plane_buffer_attributes(
+			adev, afb, plane_state->format, plane_state->rotation,
+			afb->tiling_flags,
+			&plane_state->tiling_info, &plane_state->plane_size,
+			&plane_state->dcc, &plane_state->address,
+			afb->tmz_surface, force_disable_dcc);
+	}
+
+	return 0;
+
+error_unpin:
+	amdgpu_bo_unpin(rbo);
+
+error_unlock:
+	amdgpu_bo_unreserve(rbo);
+	return r;
+}
+
+static void dm_plane_helper_cleanup_fb(struct drm_plane *plane,
+				       struct drm_plane_state *old_state)
+{
+	struct amdgpu_bo *rbo;
+	int r;
+
+	if (!old_state->fb)
+		return;
+
+	rbo = gem_to_amdgpu_bo(old_state->fb->obj[0]);
+	r = amdgpu_bo_reserve(rbo, false);
+	if (unlikely(r)) {
+		DRM_ERROR("failed to reserve rbo before unpin\n");
+		return;
+	}
+
+	amdgpu_bo_unpin(rbo);
+	amdgpu_bo_unreserve(rbo);
+	amdgpu_bo_unref(&rbo);
+}
+
+static void get_min_max_dc_plane_scaling(struct drm_device *dev,
+					 struct drm_framebuffer *fb,
+					 int *min_downscale, int *max_upscale)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct dc *dc = adev->dm.dc;
+	/* Caps for all supported planes are the same on DCE and DCN 1 - 3 */
+	struct dc_plane_cap *plane_cap = &dc->caps.planes[0];
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_P010:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+		*max_upscale = plane_cap->max_upscale_factor.nv12;
+		*min_downscale = plane_cap->max_downscale_factor.nv12;
+		break;
+
+	case DRM_FORMAT_XRGB16161616F:
+	case DRM_FORMAT_ARGB16161616F:
+	case DRM_FORMAT_XBGR16161616F:
+	case DRM_FORMAT_ABGR16161616F:
+		*max_upscale = plane_cap->max_upscale_factor.fp16;
+		*min_downscale = plane_cap->max_downscale_factor.fp16;
+		break;
+
+	default:
+		*max_upscale = plane_cap->max_upscale_factor.argb8888;
+		*min_downscale = plane_cap->max_downscale_factor.argb8888;
+		break;
+	}
+
+	/*
+	 * A factor of 1 in the plane_cap means to not allow scaling, ie. use a
+	 * scaling factor of 1.0 == 1000 units.
+	 */
+	if (*max_upscale == 1)
+		*max_upscale = 1000;
+
+	if (*min_downscale == 1)
+		*min_downscale = 1000;
+}
+
+int amdgpu_dm_plane_helper_check_state(struct drm_plane_state *state,
+				       struct drm_crtc_state *new_crtc_state)
+{
+	struct drm_framebuffer *fb = state->fb;
+	int min_downscale, max_upscale;
+	int min_scale = 0;
+	int max_scale = INT_MAX;
+
+	/* Plane enabled? Validate viewport and get scaling factors from plane caps. */
+	if (fb && state->crtc) {
+		/* Validate viewport to cover the case when only the position changes */
+		if (state->plane->type != DRM_PLANE_TYPE_CURSOR) {
+			int viewport_width = state->crtc_w;
+			int viewport_height = state->crtc_h;
+
+			if (state->crtc_x < 0)
+				viewport_width += state->crtc_x;
+			else if (state->crtc_x + state->crtc_w > new_crtc_state->mode.crtc_hdisplay)
+				viewport_width = new_crtc_state->mode.crtc_hdisplay - state->crtc_x;
+
+			if (state->crtc_y < 0)
+				viewport_height += state->crtc_y;
+			else if (state->crtc_y + state->crtc_h > new_crtc_state->mode.crtc_vdisplay)
+				viewport_height = new_crtc_state->mode.crtc_vdisplay - state->crtc_y;
+
+			if (viewport_width < 0 || viewport_height < 0) {
+				DRM_DEBUG_ATOMIC("Plane completely outside of screen\n");
+				return -EINVAL;
+			} else if (viewport_width < MIN_VIEWPORT_SIZE*2) { /* x2 for width is because of pipe-split. */
+				DRM_DEBUG_ATOMIC("Viewport width %d smaller than %d\n", viewport_width, MIN_VIEWPORT_SIZE*2);
+				return -EINVAL;
+			} else if (viewport_height < MIN_VIEWPORT_SIZE) {
+				DRM_DEBUG_ATOMIC("Viewport height %d smaller than %d\n", viewport_height, MIN_VIEWPORT_SIZE);
+				return -EINVAL;
+			}
+
+		}
+
+		/* Get min/max allowed scaling factors from plane caps. */
+		get_min_max_dc_plane_scaling(state->crtc->dev, fb,
+					     &min_downscale, &max_upscale);
+		/*
+		 * Convert to drm convention: 16.16 fixed point, instead of dc's
+		 * 1.0 == 1000. Also drm scaling is src/dst instead of dc's
+		 * dst/src, so min_scale = 1.0 / max_upscale, etc.
+		 */
+		min_scale = (1000 << 16) / max_upscale;
+		max_scale = (1000 << 16) / min_downscale;
+	}
+
+	return drm_atomic_helper_check_plane_state(
+		state, new_crtc_state, min_scale, max_scale, true, true);
+}
+
+int amdgpu_dm_plane_fill_dc_scaling_info(struct amdgpu_device *adev,
+				const struct drm_plane_state *state,
+				struct dc_scaling_info *scaling_info)
+{
+	int scale_w, scale_h, min_downscale, max_upscale;
+
+	memset(scaling_info, 0, sizeof(*scaling_info));
+
+	/* Source is fixed 16.16 but we ignore mantissa for now... */
+	scaling_info->src_rect.x = state->src_x >> 16;
+	scaling_info->src_rect.y = state->src_y >> 16;
+
+	/*
+	 * For reasons we don't (yet) fully understand a non-zero
+	 * src_y coordinate into an NV12 buffer can cause a
+	 * system hang on DCN1x.
+	 * To avoid hangs (and maybe be overly cautious)
+	 * let's reject both non-zero src_x and src_y.
+	 *
+	 * We currently know of only one use-case to reproduce a
+	 * scenario with non-zero src_x and src_y for NV12, which
+	 * is to gesture the YouTube Android app into full screen
+	 * on ChromeOS.
+	 */
+	if (((adev->ip_versions[DCE_HWIP][0] == IP_VERSION(1, 0, 0)) ||
+	    (adev->ip_versions[DCE_HWIP][0] == IP_VERSION(1, 0, 1))) &&
+	    (state->fb && state->fb->format->format == DRM_FORMAT_NV12 &&
+	    (scaling_info->src_rect.x != 0 || scaling_info->src_rect.y != 0)))
+		return -EINVAL;
+
+	scaling_info->src_rect.width = state->src_w >> 16;
+	if (scaling_info->src_rect.width == 0)
+		return -EINVAL;
+
+	scaling_info->src_rect.height = state->src_h >> 16;
+	if (scaling_info->src_rect.height == 0)
+		return -EINVAL;
+
+	scaling_info->dst_rect.x = state->crtc_x;
+	scaling_info->dst_rect.y = state->crtc_y;
+
+	if (state->crtc_w == 0)
+		return -EINVAL;
+
+	scaling_info->dst_rect.width = state->crtc_w;
+
+	if (state->crtc_h == 0)
+		return -EINVAL;
+
+	scaling_info->dst_rect.height = state->crtc_h;
+
+	/* DRM doesn't specify clipping on destination output. */
+	scaling_info->clip_rect = scaling_info->dst_rect;
+
+	/* Validate scaling per-format with DC plane caps */
+	if (state->plane && state->plane->dev && state->fb) {
+		get_min_max_dc_plane_scaling(state->plane->dev, state->fb,
+					     &min_downscale, &max_upscale);
+	} else {
+		min_downscale = 250;
+		max_upscale = 16000;
+	}
+
+	scale_w = scaling_info->dst_rect.width * 1000 /
+		  scaling_info->src_rect.width;
+
+	if (scale_w < min_downscale || scale_w > max_upscale)
+		return -EINVAL;
+
+	scale_h = scaling_info->dst_rect.height * 1000 /
+		  scaling_info->src_rect.height;
+
+	if (scale_h < min_downscale || scale_h > max_upscale)
+		return -EINVAL;
+
+	/*
+	 * The "scaling_quality" can be ignored for now, quality = 0 has DC
+	 * assume reasonable defaults based on the format.
+	 */
+
+	return 0;
+}
+
+static int dm_plane_atomic_check(struct drm_plane *plane,
+				 struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+										 plane);
+	struct amdgpu_device *adev = drm_to_adev(plane->dev);
+	struct dc *dc = adev->dm.dc;
+	struct dm_plane_state *dm_plane_state;
+	struct dc_scaling_info scaling_info;
+	struct drm_crtc_state *new_crtc_state;
+	int ret;
+
+	trace_amdgpu_dm_plane_atomic_check(new_plane_state);
+
+	dm_plane_state = to_dm_plane_state(new_plane_state);
+
+	if (!dm_plane_state->dc_state)
+		return 0;
+
+	new_crtc_state =
+		drm_atomic_get_new_crtc_state(state,
+					      new_plane_state->crtc);
+	if (!new_crtc_state)
+		return -EINVAL;
+
+	ret = amdgpu_dm_plane_helper_check_state(new_plane_state, new_crtc_state);
+	if (ret)
+		return ret;
+
+	ret = amdgpu_dm_plane_fill_dc_scaling_info(adev, new_plane_state, &scaling_info);
+	if (ret)
+		return ret;
+
+	if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK)
+		return 0;
+
+	return -EINVAL;
+}
+
+static int dm_plane_atomic_async_check(struct drm_plane *plane,
+				       struct drm_atomic_state *state)
+{
+	/* Only support async updates on cursor planes. */
+	if (plane->type != DRM_PLANE_TYPE_CURSOR)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc,
+			       struct dc_cursor_position *position)
+{
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+	int x, y;
+	int xorigin = 0, yorigin = 0;
+
+	if (!crtc || !plane->state->fb)
+		return 0;
+
+	if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) ||
+	    (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) {
+		DRM_ERROR("%s: bad cursor width or height %d x %d\n",
+			  __func__,
+			  plane->state->crtc_w,
+			  plane->state->crtc_h);
+		return -EINVAL;
+	}
+
+	x = plane->state->crtc_x;
+	y = plane->state->crtc_y;
+
+	if (x <= -amdgpu_crtc->max_cursor_width ||
+	    y <= -amdgpu_crtc->max_cursor_height)
+		return 0;
+
+	if (x < 0) {
+		xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1);
+		x = 0;
+	}
+	if (y < 0) {
+		yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1);
+		y = 0;
+	}
+	position->enable = true;
+	position->translate_by_source = true;
+	position->x = x;
+	position->y = y;
+	position->x_hotspot = xorigin;
+	position->y_hotspot = yorigin;
+
+	return 0;
+}
+
+void amdgpu_dm_plane_handle_cursor_update(struct drm_plane *plane,
+				 struct drm_plane_state *old_plane_state)
+{
+	struct amdgpu_device *adev = drm_to_adev(plane->dev);
+	struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb);
+	struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc;
+	struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL;
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+	uint64_t address = afb ? afb->address : 0;
+	struct dc_cursor_position position = {0};
+	struct dc_cursor_attributes attributes;
+	int ret;
+
+	if (!plane->state->fb && !old_plane_state->fb)
+		return;
+
+	DC_LOG_CURSOR("%s: crtc_id=%d with size %d to %d\n",
+		      __func__,
+		      amdgpu_crtc->crtc_id,
+		      plane->state->crtc_w,
+		      plane->state->crtc_h);
+
+	ret = get_cursor_position(plane, crtc, &position);
+	if (ret)
+		return;
+
+	if (!position.enable) {
+		/* turn off cursor */
+		if (crtc_state && crtc_state->stream) {
+			mutex_lock(&adev->dm.dc_lock);
+			dc_stream_set_cursor_position(crtc_state->stream,
+						      &position);
+			mutex_unlock(&adev->dm.dc_lock);
+		}
+		return;
+	}
+
+	amdgpu_crtc->cursor_width = plane->state->crtc_w;
+	amdgpu_crtc->cursor_height = plane->state->crtc_h;
+
+	memset(&attributes, 0, sizeof(attributes));
+	attributes.address.high_part = upper_32_bits(address);
+	attributes.address.low_part  = lower_32_bits(address);
+	attributes.width             = plane->state->crtc_w;
+	attributes.height            = plane->state->crtc_h;
+	attributes.color_format      = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA;
+	attributes.rotation_angle    = 0;
+	attributes.attribute_flags.value = 0;
+
+	/* Enable cursor degamma ROM on DCN3+ for implicit sRGB degamma in DRM
+	 * legacy gamma setup.
+	 */
+	if (crtc_state->cm_is_degamma_srgb &&
+	    adev->dm.dc->caps.color.dpp.gamma_corr)
+		attributes.attribute_flags.bits.ENABLE_CURSOR_DEGAMMA = 1;
+
+	attributes.pitch = afb->base.pitches[0] / afb->base.format->cpp[0];
+
+	if (crtc_state->stream) {
+		mutex_lock(&adev->dm.dc_lock);
+		if (!dc_stream_set_cursor_attributes(crtc_state->stream,
+							 &attributes))
+			DRM_ERROR("DC failed to set cursor attributes\n");
+
+		if (!dc_stream_set_cursor_position(crtc_state->stream,
+						   &position))
+			DRM_ERROR("DC failed to set cursor position\n");
+		mutex_unlock(&adev->dm.dc_lock);
+	}
+}
+
+static void dm_plane_atomic_async_update(struct drm_plane *plane,
+					 struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+									   plane);
+	struct drm_plane_state *old_state =
+		drm_atomic_get_old_plane_state(state, plane);
+
+	trace_amdgpu_dm_atomic_update_cursor(new_state);
+
+	swap(plane->state->fb, new_state->fb);
+
+	plane->state->src_x = new_state->src_x;
+	plane->state->src_y = new_state->src_y;
+	plane->state->src_w = new_state->src_w;
+	plane->state->src_h = new_state->src_h;
+	plane->state->crtc_x = new_state->crtc_x;
+	plane->state->crtc_y = new_state->crtc_y;
+	plane->state->crtc_w = new_state->crtc_w;
+	plane->state->crtc_h = new_state->crtc_h;
+
+	amdgpu_dm_plane_handle_cursor_update(plane, old_state);
+}
+
+static const struct drm_plane_helper_funcs dm_plane_helper_funcs = {
+	.prepare_fb = dm_plane_helper_prepare_fb,
+	.cleanup_fb = dm_plane_helper_cleanup_fb,
+	.atomic_check = dm_plane_atomic_check,
+	.atomic_async_check = dm_plane_atomic_async_check,
+	.atomic_async_update = dm_plane_atomic_async_update
+};
+
+static void dm_drm_plane_reset(struct drm_plane *plane)
+{
+	struct dm_plane_state *amdgpu_state = NULL;
+
+	if (plane->state)
+		plane->funcs->atomic_destroy_state(plane, plane->state);
+
+	amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL);
+	WARN_ON(amdgpu_state == NULL);
+
+	if (amdgpu_state)
+		__drm_atomic_helper_plane_reset(plane, &amdgpu_state->base);
+}
+
+static struct drm_plane_state *
+dm_drm_plane_duplicate_state(struct drm_plane *plane)
+{
+	struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
+
+	old_dm_plane_state = to_dm_plane_state(plane->state);
+	dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL);
+	if (!dm_plane_state)
+		return NULL;
+
+	__drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base);
+
+	if (old_dm_plane_state->dc_state) {
+		dm_plane_state->dc_state = old_dm_plane_state->dc_state;
+		dc_plane_state_retain(dm_plane_state->dc_state);
+	}
+
+	return &dm_plane_state->base;
+}
+
+static bool dm_plane_format_mod_supported(struct drm_plane *plane,
+					  uint32_t format,
+					  uint64_t modifier)
+{
+	struct amdgpu_device *adev = drm_to_adev(plane->dev);
+	const struct drm_format_info *info = drm_format_info(format);
+	int i;
+
+	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
+
+	if (!info)
+		return false;
+
+	/*
+	 * We always have to allow these modifiers:
+	 * 1. Core DRM checks for LINEAR support if userspace does not provide modifiers.
+	 * 2. Not passing any modifiers is the same as explicitly passing INVALID.
+	 */
+	if (modifier == DRM_FORMAT_MOD_LINEAR ||
+	    modifier == DRM_FORMAT_MOD_INVALID) {
+		return true;
+	}
+
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
+	}
+	if (i == plane->modifier_count)
+		return false;
+
+	/*
+	 * For D swizzle the canonical modifier depends on the bpp, so check
+	 * it here.
+	 */
+	if (AMD_FMT_MOD_GET(TILE_VERSION, modifier) == AMD_FMT_MOD_TILE_VER_GFX9 &&
+	    adev->family >= AMDGPU_FAMILY_NV) {
+		if (microtile == MICRO_SWIZZLE_D && info->cpp[0] == 4)
+			return false;
+	}
+
+	if (adev->family >= AMDGPU_FAMILY_RV && microtile == MICRO_SWIZZLE_D &&
+	    info->cpp[0] < 8)
+		return false;
+
+	if (modifier_has_dcc(modifier)) {
+		/* Per radeonsi comments 16/64 bpp are more complicated. */
+		if (info->cpp[0] != 4)
+			return false;
+		/* We support multi-planar formats, but not when combined with
+		 * additional DCC metadata planes.
+		 */
+		if (info->num_planes > 1)
+			return false;
+	}
+
+	return true;
+}
+
+static void dm_drm_plane_destroy_state(struct drm_plane *plane,
+				struct drm_plane_state *state)
+{
+	struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
+
+	if (dm_plane_state->dc_state)
+		dc_plane_state_release(dm_plane_state->dc_state);
+
+	drm_atomic_helper_plane_destroy_state(plane, state);
+}
+
+static const struct drm_plane_funcs dm_plane_funcs = {
+	.update_plane	= drm_atomic_helper_update_plane,
+	.disable_plane	= drm_atomic_helper_disable_plane,
+	.destroy	= drm_plane_helper_destroy,
+	.reset = dm_drm_plane_reset,
+	.atomic_duplicate_state = dm_drm_plane_duplicate_state,
+	.atomic_destroy_state = dm_drm_plane_destroy_state,
+	.format_mod_supported = dm_plane_format_mod_supported,
+};
+
+int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
+				struct drm_plane *plane,
+				unsigned long possible_crtcs,
+				const struct dc_plane_cap *plane_cap)
+{
+	uint32_t formats[32];
+	int num_formats;
+	int res = -EPERM;
+	unsigned int supported_rotations;
+	uint64_t *modifiers = NULL;
+
+	num_formats = get_plane_formats(plane, plane_cap, formats,
+					ARRAY_SIZE(formats));
+
+	res = get_plane_modifiers(dm->adev, plane->type, &modifiers);
+	if (res)
+		return res;
+
+	if (modifiers == NULL)
+		adev_to_drm(dm->adev)->mode_config.fb_modifiers_not_supported = true;
+
+	res = drm_universal_plane_init(adev_to_drm(dm->adev), plane, possible_crtcs,
+				       &dm_plane_funcs, formats, num_formats,
+				       modifiers, plane->type, NULL);
+	kfree(modifiers);
+	if (res)
+		return res;
+
+	if (plane->type == DRM_PLANE_TYPE_OVERLAY &&
+	    plane_cap && plane_cap->per_pixel_alpha) {
+		unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) |
+					  BIT(DRM_MODE_BLEND_PREMULTI) |
+					  BIT(DRM_MODE_BLEND_COVERAGE);
+
+		drm_plane_create_alpha_property(plane);
+		drm_plane_create_blend_mode_property(plane, blend_caps);
+	}
+
+	if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
+		drm_plane_create_zpos_immutable_property(plane, 0);
+	} else if (plane->type == DRM_PLANE_TYPE_OVERLAY) {
+		unsigned int zpos = 1 + drm_plane_index(plane);
+		drm_plane_create_zpos_property(plane, zpos, 1, 254);
+	} else if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+		drm_plane_create_zpos_immutable_property(plane, 255);
+	}
+
+	if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
+	    plane_cap &&
+	    (plane_cap->pixel_format_support.nv12 ||
+	     plane_cap->pixel_format_support.p010)) {
+		/* This only affects YUV formats. */
+		drm_plane_create_color_properties(
+			plane,
+			BIT(DRM_COLOR_YCBCR_BT601) |
+			BIT(DRM_COLOR_YCBCR_BT709) |
+			BIT(DRM_COLOR_YCBCR_BT2020),
+			BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
+			BIT(DRM_COLOR_YCBCR_FULL_RANGE),
+			DRM_COLOR_YCBCR_BT709, DRM_COLOR_YCBCR_LIMITED_RANGE);
+	}
+
+	supported_rotations =
+		DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
+		DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270;
+
+	if (dm->adev->asic_type >= CHIP_BONAIRE &&
+	    plane->type != DRM_PLANE_TYPE_CURSOR)
+		drm_plane_create_rotation_property(plane, DRM_MODE_ROTATE_0,
+						   supported_rotations);
+
+	if (dm->adev->ip_versions[DCE_HWIP][0] > IP_VERSION(3, 0, 1) &&
+	    plane->type != DRM_PLANE_TYPE_CURSOR)
+		drm_plane_enable_fb_damage_clips(plane);
+
+	drm_plane_helper_add(plane, &dm_plane_helper_funcs);
+
+	/* Create (reset) the plane state */
+	if (plane->funcs->reset)
+		plane->funcs->reset(plane);
+
+	return 0;
+}
+
+bool is_video_format(uint32_t format)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(video_formats); i++)
+		if (format == video_formats[i])
+			return true;
+
+	return false;
+}
+
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
new file mode 100644
index 000000000..930f1572f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __AMDGPU_DM_PLANE_H__
+#define __AMDGPU_DM_PLANE_H__
+
+#include "dc.h"
+
+void amdgpu_dm_plane_handle_cursor_update(struct drm_plane *plane,
+			  struct drm_plane_state *old_plane_state);
+
+int amdgpu_dm_plane_fill_dc_scaling_info(struct amdgpu_device *adev,
+			 const struct drm_plane_state *state,
+			 struct dc_scaling_info *scaling_info);
+
+int amdgpu_dm_plane_helper_check_state(struct drm_plane_state *state,
+				struct drm_crtc_state *new_crtc_state);
+
+int amdgpu_dm_plane_fill_plane_buffer_attributes(struct amdgpu_device *adev,
+				 const struct amdgpu_framebuffer *afb,
+				 const enum surface_pixel_format format,
+				 const enum dc_rotation_angle rotation,
+				 const uint64_t tiling_flags,
+				 union dc_tiling_info *tiling_info,
+				 struct plane_size *plane_size,
+				 struct dc_plane_dcc_param *dcc,
+				 struct dc_plane_address *address,
+				 bool tmz_surface,
+				 bool force_disable_dcc);
+
+int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
+			 struct drm_plane *plane,
+			 unsigned long possible_crtcs,
+			 const struct dc_plane_cap *plane_cap);
+
+const struct drm_format_info *amdgpu_dm_plane_get_format_info(const struct drm_mode_fb_cmd2 *cmd);
+
+void amdgpu_dm_plane_fill_blending_from_plane_state(const struct drm_plane_state *plane_state,
+				    bool *per_pixel_alpha, bool *pre_multiplied_alpha,
+				    bool *global_alpha, int *global_alpha_value);
+
+bool is_video_format(uint32_t format);
+#endif
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
new file mode 100644
index 000000000..848c5b4bb
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
@@ -0,0 +1,806 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ */
+#include <linux/string.h>
+#include <linux/acpi.h>
+
+#include <drm/drm_probe_helper.h>
+#include <drm/amdgpu_drm.h>
+#include "dm_services.h"
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_irq.h"
+#include "amdgpu_pm.h"
+#include "dm_pp_smu.h"
+
+bool dm_pp_apply_display_requirements(
+		const struct dc_context *ctx,
+		const struct dm_pp_display_configuration *pp_display_cfg)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	int i;
+
+	if (adev->pm.dpm_enabled) {
+
+		memset(&adev->pm.pm_display_cfg, 0,
+				sizeof(adev->pm.pm_display_cfg));
+
+		adev->pm.pm_display_cfg.cpu_cc6_disable =
+			pp_display_cfg->cpu_cc6_disable;
+
+		adev->pm.pm_display_cfg.cpu_pstate_disable =
+			pp_display_cfg->cpu_pstate_disable;
+
+		adev->pm.pm_display_cfg.cpu_pstate_separation_time =
+			pp_display_cfg->cpu_pstate_separation_time;
+
+		adev->pm.pm_display_cfg.nb_pstate_switch_disable =
+			pp_display_cfg->nb_pstate_switch_disable;
+
+		adev->pm.pm_display_cfg.num_display =
+				pp_display_cfg->display_count;
+		adev->pm.pm_display_cfg.num_path_including_non_display =
+				pp_display_cfg->display_count;
+
+		adev->pm.pm_display_cfg.min_core_set_clock =
+				pp_display_cfg->min_engine_clock_khz/10;
+		adev->pm.pm_display_cfg.min_core_set_clock_in_sr =
+				pp_display_cfg->min_engine_clock_deep_sleep_khz/10;
+		adev->pm.pm_display_cfg.min_mem_set_clock =
+				pp_display_cfg->min_memory_clock_khz/10;
+
+		adev->pm.pm_display_cfg.min_dcef_deep_sleep_set_clk =
+				pp_display_cfg->min_engine_clock_deep_sleep_khz/10;
+		adev->pm.pm_display_cfg.min_dcef_set_clk =
+				pp_display_cfg->min_dcfclock_khz/10;
+
+		adev->pm.pm_display_cfg.multi_monitor_in_sync =
+				pp_display_cfg->all_displays_in_sync;
+		adev->pm.pm_display_cfg.min_vblank_time =
+				pp_display_cfg->avail_mclk_switch_time_us;
+
+		adev->pm.pm_display_cfg.display_clk =
+				pp_display_cfg->disp_clk_khz/10;
+
+		adev->pm.pm_display_cfg.dce_tolerable_mclk_in_active_latency =
+				pp_display_cfg->avail_mclk_switch_time_in_disp_active_us;
+
+		adev->pm.pm_display_cfg.crtc_index = pp_display_cfg->crtc_index;
+		adev->pm.pm_display_cfg.line_time_in_us =
+				pp_display_cfg->line_time_in_us;
+
+		adev->pm.pm_display_cfg.vrefresh = pp_display_cfg->disp_configs[0].v_refresh;
+		adev->pm.pm_display_cfg.crossfire_display_index = -1;
+		adev->pm.pm_display_cfg.min_bus_bandwidth = 0;
+
+		for (i = 0; i < pp_display_cfg->display_count; i++) {
+			const struct dm_pp_single_disp_config *dc_cfg =
+						&pp_display_cfg->disp_configs[i];
+			adev->pm.pm_display_cfg.displays[i].controller_id = dc_cfg->pipe_idx + 1;
+		}
+
+		amdgpu_dpm_display_configuration_change(adev, &adev->pm.pm_display_cfg);
+
+		amdgpu_dpm_compute_clocks(adev);
+	}
+
+	return true;
+}
+
+static void get_default_clock_levels(
+		enum dm_pp_clock_type clk_type,
+		struct dm_pp_clock_levels *clks)
+{
+	uint32_t disp_clks_in_khz[6] = {
+			300000, 400000, 496560, 626090, 685720, 757900 };
+	uint32_t sclks_in_khz[6] = {
+			300000, 360000, 423530, 514290, 626090, 720000 };
+	uint32_t mclks_in_khz[2] = { 333000, 800000 };
+
+	switch (clk_type) {
+	case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
+		clks->num_levels = 6;
+		memmove(clks->clocks_in_khz, disp_clks_in_khz,
+				sizeof(disp_clks_in_khz));
+		break;
+	case DM_PP_CLOCK_TYPE_ENGINE_CLK:
+		clks->num_levels = 6;
+		memmove(clks->clocks_in_khz, sclks_in_khz,
+				sizeof(sclks_in_khz));
+		break;
+	case DM_PP_CLOCK_TYPE_MEMORY_CLK:
+		clks->num_levels = 2;
+		memmove(clks->clocks_in_khz, mclks_in_khz,
+				sizeof(mclks_in_khz));
+		break;
+	default:
+		clks->num_levels = 0;
+		break;
+	}
+}
+
+static enum amd_pp_clock_type dc_to_pp_clock_type(
+		enum dm_pp_clock_type dm_pp_clk_type)
+{
+	enum amd_pp_clock_type amd_pp_clk_type = 0;
+
+	switch (dm_pp_clk_type) {
+	case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
+		amd_pp_clk_type = amd_pp_disp_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_ENGINE_CLK:
+		amd_pp_clk_type = amd_pp_sys_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_MEMORY_CLK:
+		amd_pp_clk_type = amd_pp_mem_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_DCEFCLK:
+		amd_pp_clk_type  = amd_pp_dcef_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_DCFCLK:
+		amd_pp_clk_type = amd_pp_dcf_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_PIXELCLK:
+		amd_pp_clk_type = amd_pp_pixel_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_FCLK:
+		amd_pp_clk_type = amd_pp_f_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_DISPLAYPHYCLK:
+		amd_pp_clk_type = amd_pp_phy_clock;
+		break;
+	case DM_PP_CLOCK_TYPE_DPPCLK:
+		amd_pp_clk_type = amd_pp_dpp_clock;
+		break;
+	default:
+		DRM_ERROR("DM_PPLIB: invalid clock type: %d!\n",
+				dm_pp_clk_type);
+		break;
+	}
+
+	return amd_pp_clk_type;
+}
+
+static enum dm_pp_clocks_state pp_to_dc_powerlevel_state(
+			enum PP_DAL_POWERLEVEL max_clocks_state)
+{
+	switch (max_clocks_state) {
+	case PP_DAL_POWERLEVEL_0:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_0;
+	case PP_DAL_POWERLEVEL_1:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_1;
+	case PP_DAL_POWERLEVEL_2:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_2;
+	case PP_DAL_POWERLEVEL_3:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_3;
+	case PP_DAL_POWERLEVEL_4:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_4;
+	case PP_DAL_POWERLEVEL_5:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_5;
+	case PP_DAL_POWERLEVEL_6:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_6;
+	case PP_DAL_POWERLEVEL_7:
+		return DM_PP_CLOCKS_DPM_STATE_LEVEL_7;
+	default:
+		DRM_ERROR("DM_PPLIB: invalid powerlevel state: %d!\n",
+				max_clocks_state);
+		return DM_PP_CLOCKS_STATE_INVALID;
+	}
+}
+
+static void pp_to_dc_clock_levels(
+		const struct amd_pp_clocks *pp_clks,
+		struct dm_pp_clock_levels *dc_clks,
+		enum dm_pp_clock_type dc_clk_type)
+{
+	uint32_t i;
+
+	if (pp_clks->count > DM_PP_MAX_CLOCK_LEVELS) {
+		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
+				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
+				pp_clks->count,
+				DM_PP_MAX_CLOCK_LEVELS);
+
+		dc_clks->num_levels = DM_PP_MAX_CLOCK_LEVELS;
+	} else
+		dc_clks->num_levels = pp_clks->count;
+
+	DRM_INFO("DM_PPLIB: values for %s clock\n",
+			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
+
+	for (i = 0; i < dc_clks->num_levels; i++) {
+		DRM_INFO("DM_PPLIB:\t %d\n", pp_clks->clock[i]);
+		dc_clks->clocks_in_khz[i] = pp_clks->clock[i];
+	}
+}
+
+static void pp_to_dc_clock_levels_with_latency(
+		const struct pp_clock_levels_with_latency *pp_clks,
+		struct dm_pp_clock_levels_with_latency *clk_level_info,
+		enum dm_pp_clock_type dc_clk_type)
+{
+	uint32_t i;
+
+	if (pp_clks->num_levels > DM_PP_MAX_CLOCK_LEVELS) {
+		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
+				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
+				pp_clks->num_levels,
+				DM_PP_MAX_CLOCK_LEVELS);
+
+		clk_level_info->num_levels = DM_PP_MAX_CLOCK_LEVELS;
+	} else
+		clk_level_info->num_levels = pp_clks->num_levels;
+
+	DRM_DEBUG("DM_PPLIB: values for %s clock\n",
+			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
+
+	for (i = 0; i < clk_level_info->num_levels; i++) {
+		DRM_DEBUG("DM_PPLIB:\t %d in kHz\n", pp_clks->data[i].clocks_in_khz);
+		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
+		clk_level_info->data[i].latency_in_us = pp_clks->data[i].latency_in_us;
+	}
+}
+
+static void pp_to_dc_clock_levels_with_voltage(
+		const struct pp_clock_levels_with_voltage *pp_clks,
+		struct dm_pp_clock_levels_with_voltage *clk_level_info,
+		enum dm_pp_clock_type dc_clk_type)
+{
+	uint32_t i;
+
+	if (pp_clks->num_levels > DM_PP_MAX_CLOCK_LEVELS) {
+		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
+				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
+				pp_clks->num_levels,
+				DM_PP_MAX_CLOCK_LEVELS);
+
+		clk_level_info->num_levels = DM_PP_MAX_CLOCK_LEVELS;
+	} else
+		clk_level_info->num_levels = pp_clks->num_levels;
+
+	DRM_INFO("DM_PPLIB: values for %s clock\n",
+			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
+
+	for (i = 0; i < clk_level_info->num_levels; i++) {
+		DRM_INFO("DM_PPLIB:\t %d in kHz, %d in mV\n", pp_clks->data[i].clocks_in_khz,
+			 pp_clks->data[i].voltage_in_mv);
+		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
+		clk_level_info->data[i].voltage_in_mv = pp_clks->data[i].voltage_in_mv;
+	}
+}
+
+bool dm_pp_get_clock_levels_by_type(
+		const struct dc_context *ctx,
+		enum dm_pp_clock_type clk_type,
+		struct dm_pp_clock_levels *dc_clks)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct amd_pp_clocks pp_clks = { 0 };
+	struct amd_pp_simple_clock_info validation_clks = { 0 };
+	uint32_t i;
+
+	if (amdgpu_dpm_get_clock_by_type(adev,
+		dc_to_pp_clock_type(clk_type), &pp_clks)) {
+		/* Error in pplib. Provide default values. */
+		get_default_clock_levels(clk_type, dc_clks);
+		return true;
+	}
+
+	pp_to_dc_clock_levels(&pp_clks, dc_clks, clk_type);
+
+	if (amdgpu_dpm_get_display_mode_validation_clks(adev, &validation_clks)) {
+		/* Error in pplib. Provide default values. */
+		DRM_INFO("DM_PPLIB: Warning: using default validation clocks!\n");
+		validation_clks.engine_max_clock = 72000;
+		validation_clks.memory_max_clock = 80000;
+		validation_clks.level = 0;
+	}
+
+	DRM_INFO("DM_PPLIB: Validation clocks:\n");
+	DRM_INFO("DM_PPLIB:    engine_max_clock: %d\n",
+			validation_clks.engine_max_clock);
+	DRM_INFO("DM_PPLIB:    memory_max_clock: %d\n",
+			validation_clks.memory_max_clock);
+	DRM_INFO("DM_PPLIB:    level           : %d\n",
+			validation_clks.level);
+
+	/* Translate 10 kHz to kHz. */
+	validation_clks.engine_max_clock *= 10;
+	validation_clks.memory_max_clock *= 10;
+
+	/* Determine the highest non-boosted level from the Validation Clocks */
+	if (clk_type == DM_PP_CLOCK_TYPE_ENGINE_CLK) {
+		for (i = 0; i < dc_clks->num_levels; i++) {
+			if (dc_clks->clocks_in_khz[i] > validation_clks.engine_max_clock) {
+				/* This clock is higher the validation clock.
+				 * Than means the previous one is the highest
+				 * non-boosted one.
+				 */
+				DRM_INFO("DM_PPLIB: reducing engine clock level from %d to %d\n",
+						dc_clks->num_levels, i);
+				dc_clks->num_levels = i > 0 ? i : 1;
+				break;
+			}
+		}
+	} else if (clk_type == DM_PP_CLOCK_TYPE_MEMORY_CLK) {
+		for (i = 0; i < dc_clks->num_levels; i++) {
+			if (dc_clks->clocks_in_khz[i] > validation_clks.memory_max_clock) {
+				DRM_INFO("DM_PPLIB: reducing memory clock level from %d to %d\n",
+						dc_clks->num_levels, i);
+				dc_clks->num_levels = i > 0 ? i : 1;
+				break;
+			}
+		}
+	}
+
+	return true;
+}
+
+bool dm_pp_get_clock_levels_by_type_with_latency(
+	const struct dc_context *ctx,
+	enum dm_pp_clock_type clk_type,
+	struct dm_pp_clock_levels_with_latency *clk_level_info)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_clock_levels_with_latency pp_clks = { 0 };
+	int ret;
+
+	ret = amdgpu_dpm_get_clock_by_type_with_latency(adev,
+					dc_to_pp_clock_type(clk_type),
+					&pp_clks);
+	if (ret)
+		return false;
+
+	pp_to_dc_clock_levels_with_latency(&pp_clks, clk_level_info, clk_type);
+
+	return true;
+}
+
+bool dm_pp_get_clock_levels_by_type_with_voltage(
+	const struct dc_context *ctx,
+	enum dm_pp_clock_type clk_type,
+	struct dm_pp_clock_levels_with_voltage *clk_level_info)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_clock_levels_with_voltage pp_clk_info = {0};
+	int ret;
+
+	ret = amdgpu_dpm_get_clock_by_type_with_voltage(adev,
+					dc_to_pp_clock_type(clk_type),
+					&pp_clk_info);
+	if (ret)
+		return false;
+
+	pp_to_dc_clock_levels_with_voltage(&pp_clk_info, clk_level_info, clk_type);
+
+	return true;
+}
+
+bool dm_pp_notify_wm_clock_changes(
+	const struct dc_context *ctx,
+	struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	/*
+	 * Limit this watermark setting for Polaris for now
+	 * TODO: expand this to other ASICs
+	 */
+	if ((adev->asic_type >= CHIP_POLARIS10) &&
+	    (adev->asic_type <= CHIP_VEGAM) &&
+	    !amdgpu_dpm_set_watermarks_for_clocks_ranges(adev,
+							 (void *)wm_with_clock_ranges))
+		return true;
+
+	return false;
+}
+
+bool dm_pp_apply_power_level_change_request(
+	const struct dc_context *ctx,
+	struct dm_pp_power_level_change_request *level_change_req)
+{
+	/* TODO: to be implemented */
+	return false;
+}
+
+bool dm_pp_apply_clock_for_voltage_request(
+	const struct dc_context *ctx,
+	struct dm_pp_clock_for_voltage_req *clock_for_voltage_req)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_display_clock_request pp_clock_request = {0};
+	int ret = 0;
+
+	pp_clock_request.clock_type = dc_to_pp_clock_type(clock_for_voltage_req->clk_type);
+	pp_clock_request.clock_freq_in_khz = clock_for_voltage_req->clocks_in_khz;
+
+	if (!pp_clock_request.clock_type)
+		return false;
+
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &pp_clock_request);
+	if (ret && (ret != -EOPNOTSUPP))
+		return false;
+
+	return true;
+}
+
+bool dm_pp_get_static_clocks(
+	const struct dc_context *ctx,
+	struct dm_pp_static_clock_info *static_clk_info)
+{
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct amd_pp_clock_info pp_clk_info = {0};
+
+	if (amdgpu_dpm_get_current_clocks(adev, &pp_clk_info))
+		return false;
+
+	static_clk_info->max_clocks_state = pp_to_dc_powerlevel_state(pp_clk_info.max_clocks_state);
+	static_clk_info->max_mclk_khz = pp_clk_info.max_memory_clock * 10;
+	static_clk_info->max_sclk_khz = pp_clk_info.max_engine_clock * 10;
+
+	return true;
+}
+
+static void pp_rv_set_wm_ranges(struct pp_smu *pp,
+		struct pp_smu_wm_range_sets *ranges)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct dm_pp_wm_sets_with_clock_ranges_soc15 wm_with_clock_ranges;
+	struct dm_pp_clock_range_for_dmif_wm_set_soc15 *wm_dce_clocks = wm_with_clock_ranges.wm_dmif_clocks_ranges;
+	struct dm_pp_clock_range_for_mcif_wm_set_soc15 *wm_soc_clocks = wm_with_clock_ranges.wm_mcif_clocks_ranges;
+	int32_t i;
+
+	wm_with_clock_ranges.num_wm_dmif_sets = ranges->num_reader_wm_sets;
+	wm_with_clock_ranges.num_wm_mcif_sets = ranges->num_writer_wm_sets;
+
+	for (i = 0; i < wm_with_clock_ranges.num_wm_dmif_sets; i++) {
+		if (ranges->reader_wm_sets[i].wm_inst > 3)
+			wm_dce_clocks[i].wm_set_id = WM_SET_A;
+		else
+			wm_dce_clocks[i].wm_set_id =
+					ranges->reader_wm_sets[i].wm_inst;
+		wm_dce_clocks[i].wm_max_dcfclk_clk_in_khz =
+				ranges->reader_wm_sets[i].max_drain_clk_mhz * 1000;
+		wm_dce_clocks[i].wm_min_dcfclk_clk_in_khz =
+				ranges->reader_wm_sets[i].min_drain_clk_mhz * 1000;
+		wm_dce_clocks[i].wm_max_mem_clk_in_khz =
+				ranges->reader_wm_sets[i].max_fill_clk_mhz * 1000;
+		wm_dce_clocks[i].wm_min_mem_clk_in_khz =
+				ranges->reader_wm_sets[i].min_fill_clk_mhz * 1000;
+	}
+
+	for (i = 0; i < wm_with_clock_ranges.num_wm_mcif_sets; i++) {
+		if (ranges->writer_wm_sets[i].wm_inst > 3)
+			wm_soc_clocks[i].wm_set_id = WM_SET_A;
+		else
+			wm_soc_clocks[i].wm_set_id =
+					ranges->writer_wm_sets[i].wm_inst;
+		wm_soc_clocks[i].wm_max_socclk_clk_in_khz =
+				ranges->writer_wm_sets[i].max_fill_clk_mhz * 1000;
+		wm_soc_clocks[i].wm_min_socclk_clk_in_khz =
+				ranges->writer_wm_sets[i].min_fill_clk_mhz * 1000;
+		wm_soc_clocks[i].wm_max_mem_clk_in_khz =
+				ranges->writer_wm_sets[i].max_drain_clk_mhz * 1000;
+		wm_soc_clocks[i].wm_min_mem_clk_in_khz =
+				ranges->writer_wm_sets[i].min_drain_clk_mhz * 1000;
+	}
+
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev,
+						    &wm_with_clock_ranges);
+}
+
+static void pp_rv_set_pme_wa_enable(struct pp_smu *pp)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_notify_smu_enable_pwe(adev);
+}
+
+static void pp_rv_set_active_display_count(struct pp_smu *pp, int count)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_active_display_count(adev, count);
+}
+
+static void pp_rv_set_min_deep_sleep_dcfclk(struct pp_smu *pp, int clock)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_min_deep_sleep_dcefclk(adev, clock);
+}
+
+static void pp_rv_set_hard_min_dcefclk_by_freq(struct pp_smu *pp, int clock)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_hard_min_dcefclk_by_freq(adev, clock);
+}
+
+static void pp_rv_set_hard_min_fclk_by_freq(struct pp_smu *pp, int mhz)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_hard_min_fclk_by_freq(adev, mhz);
+}
+
+static enum pp_smu_status pp_nv_set_wm_ranges(struct pp_smu *pp,
+		struct pp_smu_wm_range_sets *ranges)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev, ranges);
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_set_display_count(struct pp_smu *pp, int count)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	int ret = 0;
+
+	ret = amdgpu_dpm_set_active_display_count(adev, count);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		/* 0: successful or smu.ppt_funcs->set_display_count = NULL;  1: fail */
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status
+pp_nv_set_min_deep_sleep_dcfclk(struct pp_smu *pp, int mhz)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	int ret = 0;
+
+	/* 0: successful or smu.ppt_funcs->set_deep_sleep_dcefclk = NULL;1: fail */
+	ret = amdgpu_dpm_set_min_deep_sleep_dcefclk(adev, mhz);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_set_hard_min_dcefclk_by_freq(
+		struct pp_smu *pp, int mhz)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_display_clock_request clock_req;
+	int ret = 0;
+
+	clock_req.clock_type = amd_pp_dcef_clock;
+	clock_req.clock_freq_in_khz = mhz * 1000;
+
+	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
+	 * 1: fail
+	 */
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status
+pp_nv_set_hard_min_uclk_by_freq(struct pp_smu *pp, int mhz)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_display_clock_request clock_req;
+	int ret = 0;
+
+	clock_req.clock_type = amd_pp_mem_clock;
+	clock_req.clock_freq_in_khz = mhz * 1000;
+
+	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
+	 * 1: fail
+	 */
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_set_pstate_handshake_support(
+	struct pp_smu *pp, bool pstate_handshake_supported)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	if (amdgpu_dpm_display_disable_memory_clock_switch(adev,
+							  !pstate_handshake_supported))
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_set_voltage_by_freq(struct pp_smu *pp,
+		enum pp_smu_nv_clock_id clock_id, int mhz)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	struct pp_display_clock_request clock_req;
+	int ret = 0;
+
+	switch (clock_id) {
+	case PP_SMU_NV_DISPCLK:
+		clock_req.clock_type = amd_pp_disp_clock;
+		break;
+	case PP_SMU_NV_PHYCLK:
+		clock_req.clock_type = amd_pp_phy_clock;
+		break;
+	case PP_SMU_NV_PIXELCLK:
+		clock_req.clock_type = amd_pp_pixel_clock;
+		break;
+	default:
+		break;
+	}
+	clock_req.clock_freq_in_khz = mhz * 1000;
+
+	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
+	 * 1: fail
+	 */
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_get_maximum_sustainable_clocks(
+		struct pp_smu *pp, struct pp_smu_nv_clock_table *max_clocks)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	int ret = 0;
+
+	ret = amdgpu_dpm_get_max_sustainable_clocks_by_dc(adev,
+							  max_clocks);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_nv_get_uclk_dpm_states(struct pp_smu *pp,
+		unsigned int *clock_values_in_khz, unsigned int *num_states)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	int ret = 0;
+
+	ret = amdgpu_dpm_get_uclk_dpm_states(adev,
+					     clock_values_in_khz,
+					    num_states);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_rn_get_dpm_clock_table(
+		struct pp_smu *pp, struct dpm_clocks *clock_table)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+	int ret = 0;
+
+	ret = amdgpu_dpm_get_dpm_clock_table(adev, clock_table);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
+
+	return PP_SMU_RESULT_OK;
+}
+
+static enum pp_smu_status pp_rn_set_wm_ranges(struct pp_smu *pp,
+		struct pp_smu_wm_range_sets *ranges)
+{
+	const struct dc_context *ctx = pp->dm;
+	struct amdgpu_device *adev = ctx->driver_context;
+
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev, ranges);
+
+	return PP_SMU_RESULT_OK;
+}
+
+void dm_pp_get_funcs(
+		struct dc_context *ctx,
+		struct pp_smu_funcs *funcs)
+{
+	switch (ctx->dce_version) {
+	case DCN_VERSION_1_0:
+	case DCN_VERSION_1_01:
+		funcs->ctx.ver = PP_SMU_VER_RV;
+		funcs->rv_funcs.pp_smu.dm = ctx;
+		funcs->rv_funcs.set_wm_ranges = pp_rv_set_wm_ranges;
+		funcs->rv_funcs.set_pme_wa_enable = pp_rv_set_pme_wa_enable;
+		funcs->rv_funcs.set_display_count =
+				pp_rv_set_active_display_count;
+		funcs->rv_funcs.set_min_deep_sleep_dcfclk =
+				pp_rv_set_min_deep_sleep_dcfclk;
+		funcs->rv_funcs.set_hard_min_dcfclk_by_freq =
+				pp_rv_set_hard_min_dcefclk_by_freq;
+		funcs->rv_funcs.set_hard_min_fclk_by_freq =
+				pp_rv_set_hard_min_fclk_by_freq;
+		break;
+	case DCN_VERSION_2_0:
+		funcs->ctx.ver = PP_SMU_VER_NV;
+		funcs->nv_funcs.pp_smu.dm = ctx;
+		funcs->nv_funcs.set_display_count = pp_nv_set_display_count;
+		funcs->nv_funcs.set_hard_min_dcfclk_by_freq =
+				pp_nv_set_hard_min_dcefclk_by_freq;
+		funcs->nv_funcs.set_min_deep_sleep_dcfclk =
+				pp_nv_set_min_deep_sleep_dcfclk;
+		funcs->nv_funcs.set_voltage_by_freq =
+				pp_nv_set_voltage_by_freq;
+		funcs->nv_funcs.set_wm_ranges = pp_nv_set_wm_ranges;
+
+		/* todo set_pme_wa_enable cause 4k@6ohz display not light up */
+		funcs->nv_funcs.set_pme_wa_enable = NULL;
+		/* todo debug waring message */
+		funcs->nv_funcs.set_hard_min_uclk_by_freq = pp_nv_set_hard_min_uclk_by_freq;
+		/* todo  compare data with window driver*/
+		funcs->nv_funcs.get_maximum_sustainable_clocks = pp_nv_get_maximum_sustainable_clocks;
+		/*todo  compare data with window driver */
+		funcs->nv_funcs.get_uclk_dpm_states = pp_nv_get_uclk_dpm_states;
+		funcs->nv_funcs.set_pstate_handshake_support = pp_nv_set_pstate_handshake_support;
+		break;
+
+	case DCN_VERSION_2_1:
+		funcs->ctx.ver = PP_SMU_VER_RN;
+		funcs->rn_funcs.pp_smu.dm = ctx;
+		funcs->rn_funcs.set_wm_ranges = pp_rn_set_wm_ranges;
+		funcs->rn_funcs.get_dpm_clock_table = pp_rn_get_dpm_clock_table;
+		break;
+	default:
+		DRM_ERROR("smu version is not supported !\n");
+		break;
+	}
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
new file mode 100644
index 000000000..08ce3bb8f
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "amdgpu_dm_psr.h"
+#include "dc_dmub_srv.h"
+#include "dc.h"
+#include "dm_helpers.h"
+#include "amdgpu_dm.h"
+#include "modules/power/power_helpers.h"
+
+static bool link_supports_psrsu(struct dc_link *link)
+{
+	struct dc *dc = link->ctx->dc;
+
+	if (!dc->caps.dmcub_support)
+		return false;
+
+	if (dc->ctx->dce_version < DCN_VERSION_3_1)
+		return false;
+
+	if (!is_psr_su_specific_panel(link))
+		return false;
+
+	if (!link->dpcd_caps.alpm_caps.bits.AUX_WAKE_ALPM_CAP ||
+	    !link->dpcd_caps.psr_info.psr_dpcd_caps.bits.Y_COORDINATE_REQUIRED)
+		return false;
+
+	if (link->dpcd_caps.psr_info.psr_dpcd_caps.bits.SU_GRANULARITY_REQUIRED &&
+	    !link->dpcd_caps.psr_info.psr2_su_y_granularity_cap)
+		return false;
+
+	return dc_dmub_check_min_version(dc->ctx->dmub_srv->dmub);
+}
+
+/*
+ * amdgpu_dm_set_psr_caps() - set link psr capabilities
+ * @link: link
+ *
+ */
+void amdgpu_dm_set_psr_caps(struct dc_link *link)
+{
+	if (!(link->connector_signal & SIGNAL_TYPE_EDP)) {
+		link->psr_settings.psr_feature_enabled = false;
+		return;
+	}
+
+	if (link->type == dc_connection_none) {
+		link->psr_settings.psr_feature_enabled = false;
+		return;
+	}
+
+	if (link->dpcd_caps.psr_info.psr_version == 0) {
+		link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED;
+		link->psr_settings.psr_feature_enabled = false;
+
+	} else {
+		if (link_supports_psrsu(link))
+			link->psr_settings.psr_version = DC_PSR_VERSION_SU_1;
+		else
+			link->psr_settings.psr_version = DC_PSR_VERSION_1;
+
+		link->psr_settings.psr_feature_enabled = true;
+	}
+
+	DRM_INFO("PSR support %d, DC PSR ver %d, sink PSR ver %d DPCD caps 0x%x su_y_granularity %d\n",
+		link->psr_settings.psr_feature_enabled,
+		link->psr_settings.psr_version,
+		link->dpcd_caps.psr_info.psr_version,
+		link->dpcd_caps.psr_info.psr_dpcd_caps.raw,
+		link->dpcd_caps.psr_info.psr2_su_y_granularity_cap);
+
+}
+
+/*
+ * amdgpu_dm_link_setup_psr() - configure psr link
+ * @stream: stream state
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream)
+{
+	struct dc_link *link = NULL;
+	struct psr_config psr_config = {0};
+	struct psr_context psr_context = {0};
+	struct dc *dc = NULL;
+	bool ret = false;
+
+	if (stream == NULL)
+		return false;
+
+	link = stream->link;
+	dc = link->ctx->dc;
+
+	if (link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED) {
+		mod_power_calc_psr_configs(&psr_config, link, stream);
+
+		/* linux DM specific updating for psr config fields */
+		psr_config.allow_smu_optimizations =
+			(amdgpu_dc_feature_mask & DC_PSR_ALLOW_SMU_OPT) &&
+			mod_power_only_edp(dc->current_state, stream);
+		psr_config.allow_multi_disp_optimizations =
+			(amdgpu_dc_feature_mask & DC_PSR_ALLOW_MULTI_DISP_OPT);
+
+		if (!psr_su_set_dsc_slice_height(dc, link, stream, &psr_config))
+			return false;
+
+		ret = dc_link_setup_psr(link, stream, &psr_config, &psr_context);
+
+	}
+	DRM_DEBUG_DRIVER("PSR link: %d\n",	link->psr_settings.psr_feature_enabled);
+
+	return ret;
+}
+
+/*
+ * amdgpu_dm_psr_enable() - enable psr f/w
+ * @stream: stream state
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
+{
+	struct dc_link *link = stream->link;
+	unsigned int vsync_rate_hz = 0;
+	struct dc_static_screen_params params = {0};
+	/* Calculate number of static frames before generating interrupt to
+	 * enter PSR.
+	 */
+	// Init fail safe of 2 frames static
+	unsigned int num_frames_static = 2;
+	unsigned int power_opt = 0;
+	bool psr_enable = true;
+
+	DRM_DEBUG_DRIVER("Enabling psr...\n");
+
+	vsync_rate_hz = div64_u64(div64_u64((
+			stream->timing.pix_clk_100hz * 100),
+			stream->timing.v_total),
+			stream->timing.h_total);
+
+	/* Round up
+	 * Calculate number of frames such that at least 30 ms of time has
+	 * passed.
+	 */
+	if (vsync_rate_hz != 0) {
+		unsigned int frame_time_microsec = 1000000 / vsync_rate_hz;
+
+		num_frames_static = (30000 / frame_time_microsec) + 1;
+	}
+
+	params.triggers.cursor_update = true;
+	params.triggers.overlay_update = true;
+	params.triggers.surface_update = true;
+	params.num_frames = num_frames_static;
+
+	dc_stream_set_static_screen_params(link->ctx->dc,
+					   &stream, 1,
+					   &params);
+
+	/*
+	 * Only enable static-screen optimizations for PSR1. For PSR SU, this
+	 * causes vstartup interrupt issues, used by amdgpu_dm to send vblank
+	 * events.
+	 */
+	if (link->psr_settings.psr_version < DC_PSR_VERSION_SU_1)
+		power_opt |= psr_power_opt_z10_static_screen;
+
+	return dc_link_set_psr_allow_active(link, &psr_enable, false, false, &power_opt);
+}
+
+/*
+ * amdgpu_dm_psr_disable() - disable psr f/w
+ * @stream:  stream state
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_psr_disable(struct dc_stream_state *stream)
+{
+	unsigned int power_opt = 0;
+	bool psr_enable = false;
+
+	DRM_DEBUG_DRIVER("Disabling psr...\n");
+
+	return dc_link_set_psr_allow_active(stream->link, &psr_enable, true, false, &power_opt);
+}
+
+/*
+ * amdgpu_dm_psr_disable() - disable psr f/w
+ * if psr is enabled on any stream
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_psr_disable_all(struct amdgpu_display_manager *dm)
+{
+	DRM_DEBUG_DRIVER("Disabling psr if psr is enabled on any stream\n");
+	return dc_set_psr_allow_active(dm->dc, false);
+}
+
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h
new file mode 100644
index 000000000..6806b3c9c
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef AMDGPU_DM_AMDGPU_DM_PSR_H_
+#define AMDGPU_DM_AMDGPU_DM_PSR_H_
+
+#include "amdgpu.h"
+
+/* the number of pageflips before enabling psr */
+#define AMDGPU_DM_PSR_ENTRY_DELAY 5
+
+void amdgpu_dm_set_psr_caps(struct dc_link *link);
+bool amdgpu_dm_psr_enable(struct dc_stream_state *stream);
+bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream);
+bool amdgpu_dm_psr_disable(struct dc_stream_state *stream);
+bool amdgpu_dm_psr_disable_all(struct amdgpu_display_manager *dm);
+
+#endif /* AMDGPU_DM_AMDGPU_DM_PSR_H_ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
new file mode 100644
index 000000000..32d3086c4
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "amdgpu_dm_replay.h"
+#include "dc.h"
+#include "dm_helpers.h"
+#include "amdgpu_dm.h"
+#include "modules/power/power_helpers.h"
+#include "dmub/inc/dmub_cmd.h"
+#include "dc/inc/link.h"
+
+/*
+ * link_supports_replay() - check if the link supports replay
+ * @link: link
+ * @aconnector: aconnector
+ *
+ */
+static bool link_supports_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
+{
+	struct dm_connector_state *state = to_dm_connector_state(aconnector->base.state);
+	struct dpcd_caps *dpcd_caps = &link->dpcd_caps;
+	struct adaptive_sync_caps *as_caps = &link->dpcd_caps.adaptive_sync_caps;
+
+	if (!state->freesync_capable)
+		return false;
+
+	if (!aconnector->vsdb_info.replay_mode)
+		return false;
+
+	// Check the eDP version
+	if (dpcd_caps->edp_rev < EDP_REVISION_13)
+		return false;
+
+	if (!dpcd_caps->alpm_caps.bits.AUX_WAKE_ALPM_CAP)
+		return false;
+
+	// Check adaptive sync support cap
+	if (!as_caps->dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT)
+		return false;
+
+	return true;
+}
+
+/*
+ * amdgpu_dm_setup_replay() - setup replay configuration
+ * @link: link
+ * @aconnector: aconnector
+ *
+ */
+bool amdgpu_dm_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector)
+{
+	struct replay_config pr_config;
+	union replay_debug_flags *debug_flags = NULL;
+
+	// For eDP, if Replay is supported, return true to skip checks
+	if (link->replay_settings.config.replay_supported)
+		return true;
+
+	if (!dc_is_embedded_signal(link->connector_signal))
+		return false;
+
+	if (link->panel_config.psr.disallow_replay)
+		return false;
+
+	if (!link_supports_replay(link, aconnector))
+		return false;
+
+	// Mark Replay is supported in link and update related attributes
+	pr_config.replay_supported = true;
+	pr_config.replay_power_opt_supported = 0;
+	pr_config.replay_enable_option |= pr_enable_option_static_screen;
+	pr_config.replay_timing_sync_supported = aconnector->max_vfreq >= 2 * aconnector->min_vfreq ? true : false;
+
+	if (!pr_config.replay_timing_sync_supported)
+		pr_config.replay_enable_option &= ~pr_enable_option_general_ui;
+
+	debug_flags = (union replay_debug_flags *)&pr_config.debug_flags;
+	debug_flags->u32All = 0;
+	debug_flags->bitfields.visual_confirm =
+		link->ctx->dc->debug.visual_confirm == VISUAL_CONFIRM_REPLAY ? true : false;
+
+	link->replay_settings.replay_feature_enabled = true;
+
+	init_replay_config(link, &pr_config);
+
+	return true;
+}
+
+
+/*
+ * amdgpu_dm_replay_enable() - enable replay f/w
+ * @stream: stream state
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait)
+{
+	uint64_t state;
+	unsigned int retry_count;
+	bool replay_active = true;
+	const unsigned int max_retry = 1000;
+	bool force_static = true;
+	struct dc_link *link = NULL;
+
+
+	if (stream == NULL)
+		return false;
+
+	link = stream->link;
+
+	if (link == NULL)
+		return false;
+
+	link->dc->link_srv->edp_setup_replay(link, stream);
+
+	link->dc->link_srv->edp_set_replay_allow_active(link, NULL, false, false, NULL);
+
+	link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, false, true, NULL);
+
+	if (wait == true) {
+
+		for (retry_count = 0; retry_count <= max_retry; retry_count++) {
+			dc_link_get_replay_state(link, &state);
+			if (replay_active) {
+				if (state != REPLAY_STATE_0 &&
+					(!force_static || state == REPLAY_STATE_3))
+					break;
+			} else {
+				if (state == REPLAY_STATE_0)
+					break;
+			}
+			udelay(500);
+		}
+
+		/* assert if max retry hit */
+		if (retry_count >= max_retry)
+			ASSERT(0);
+	} else {
+		/* To-do: Add trace log */
+	}
+
+	return true;
+}
+
+/*
+ * amdgpu_dm_replay_disable() - disable replay f/w
+ * @stream:  stream state
+ *
+ * Return: true if success
+ */
+bool amdgpu_dm_replay_disable(struct dc_stream_state *stream)
+{
+
+	if (stream->link) {
+		DRM_DEBUG_DRIVER("Disabling replay...\n");
+		stream->link->dc->link_srv->edp_set_replay_allow_active(stream->link, NULL, false, false, NULL);
+		return true;
+	}
+
+	return false;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h
new file mode 100644
index 000000000..01cba3cd6
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef AMDGPU_DM_AMDGPU_DM_REPLAY_H_
+#define AMDGPU_DM_AMDGPU_DM_REPLAY_H_
+
+#include "amdgpu.h"
+
+enum replay_enable_option {
+	pr_enable_option_static_screen = 0x1,
+	pr_enable_option_mpo_video = 0x2,
+	pr_enable_option_full_screen_video = 0x4,
+	pr_enable_option_general_ui = 0x8,
+	pr_enable_option_static_screen_coasting = 0x10000,
+	pr_enable_option_mpo_video_coasting = 0x20000,
+	pr_enable_option_full_screen_video_coasting = 0x40000,
+};
+
+
+bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool enable);
+bool amdgpu_dm_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector);
+bool amdgpu_dm_replay_disable(struct dc_stream_state *stream);
+
+#endif /* AMDGPU_DM_AMDGPU_DM_REPLAY_H_ */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
new file mode 100644
index 000000000..d9e33c6bc
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <linux/string.h>
+#include <linux/acpi.h>
+
+#include <drm/drm_probe_helper.h>
+#include <drm/amdgpu_drm.h>
+#include "dm_services.h"
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_dm_irq.h"
+#include "amdgpu_pm.h"
+#include "amdgpu_dm_trace.h"
+
+	unsigned long long
+	dm_get_elapse_time_in_ns(struct dc_context *ctx,
+				 unsigned long long current_time_stamp,
+				 unsigned long long last_time_stamp)
+{
+	return current_time_stamp - last_time_stamp;
+}
+
+void dm_perf_trace_timestamp(const char *func_name, unsigned int line, struct dc_context *ctx)
+{
+	trace_amdgpu_dc_performance(ctx->perf_trace->read_count,
+				    ctx->perf_trace->write_count,
+				    &ctx->perf_trace->last_entry_read,
+				    &ctx->perf_trace->last_entry_write,
+				    func_name, line);
+}
+
+/**** power component interfaces ****/
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
new file mode 100644
index 000000000..0f580ea37
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
@@ -0,0 +1,734 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM amdgpu_dm
+
+#if !defined(_AMDGPU_DM_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _AMDGPU_DM_TRACE_H_
+
+#include <linux/tracepoint.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_plane.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_encoder.h>
+#include <drm/drm_atomic.h>
+#include "dcn10/dcn10_optc.h"
+
+#include "dc/inc/core_types.h"
+
+DECLARE_EVENT_CLASS(amdgpu_dc_reg_template,
+		    TP_PROTO(unsigned long *count, uint32_t reg, uint32_t value),
+		    TP_ARGS(count, reg, value),
+
+		    TP_STRUCT__entry(
+				     __field(uint32_t, reg)
+				     __field(uint32_t, value)
+		    ),
+
+		    TP_fast_assign(
+				   __entry->reg = reg;
+				   __entry->value = value;
+				   *count = *count + 1;
+		    ),
+
+		    TP_printk("reg=0x%08lx, value=0x%08lx",
+			      (unsigned long)__entry->reg,
+			      (unsigned long)__entry->value)
+);
+
+DEFINE_EVENT(amdgpu_dc_reg_template, amdgpu_dc_rreg,
+	     TP_PROTO(unsigned long *count, uint32_t reg, uint32_t value),
+	     TP_ARGS(count, reg, value));
+
+DEFINE_EVENT(amdgpu_dc_reg_template, amdgpu_dc_wreg,
+	     TP_PROTO(unsigned long *count, uint32_t reg, uint32_t value),
+	     TP_ARGS(count, reg, value));
+
+TRACE_EVENT(amdgpu_dc_performance,
+	TP_PROTO(unsigned long read_count, unsigned long write_count,
+		unsigned long *last_read, unsigned long *last_write,
+		const char *func, unsigned int line),
+	TP_ARGS(read_count, write_count, last_read, last_write, func, line),
+	TP_STRUCT__entry(
+			__field(uint32_t, reads)
+			__field(uint32_t, writes)
+			__field(uint32_t, read_delta)
+			__field(uint32_t, write_delta)
+			__string(func, func)
+			__field(uint32_t, line)
+			),
+	TP_fast_assign(
+			__entry->reads = read_count;
+			__entry->writes = write_count;
+			__entry->read_delta = read_count - *last_read;
+			__entry->write_delta = write_count - *last_write;
+			__assign_str(func, func);
+			__entry->line = line;
+			*last_read = read_count;
+			*last_write = write_count;
+			),
+	TP_printk("%s:%d reads=%08ld (%08ld total), writes=%08ld (%08ld total)",
+			__get_str(func), __entry->line,
+			(unsigned long)__entry->read_delta,
+			(unsigned long)__entry->reads,
+			(unsigned long)__entry->write_delta,
+			(unsigned long)__entry->writes)
+);
+
+TRACE_EVENT(amdgpu_dm_connector_atomic_check,
+	    TP_PROTO(const struct drm_connector_state *state),
+	    TP_ARGS(state),
+
+	    TP_STRUCT__entry(
+			     __field(uint32_t, conn_id)
+			     __field(const struct drm_connector_state *, conn_state)
+			     __field(const struct drm_atomic_state *, state)
+			     __field(const struct drm_crtc_commit *, commit)
+			     __field(uint32_t, crtc_id)
+			     __field(uint32_t, best_encoder_id)
+			     __field(enum drm_link_status, link_status)
+			     __field(bool, self_refresh_aware)
+			     __field(enum hdmi_picture_aspect, picture_aspect_ratio)
+			     __field(unsigned int, content_type)
+			     __field(unsigned int, hdcp_content_type)
+			     __field(unsigned int, content_protection)
+			     __field(unsigned int, scaling_mode)
+			     __field(u32, colorspace)
+			     __field(u8, max_requested_bpc)
+			     __field(u8, max_bpc)
+	    ),
+
+	    TP_fast_assign(
+			   __entry->conn_id = state->connector->base.id;
+			   __entry->conn_state = state;
+			   __entry->state = state->state;
+			   __entry->commit = state->commit;
+			   __entry->crtc_id = state->crtc ? state->crtc->base.id : 0;
+			   __entry->best_encoder_id = state->best_encoder ?
+						      state->best_encoder->base.id : 0;
+			   __entry->link_status = state->link_status;
+			   __entry->self_refresh_aware = state->self_refresh_aware;
+			   __entry->picture_aspect_ratio = state->picture_aspect_ratio;
+			   __entry->content_type = state->content_type;
+			   __entry->hdcp_content_type = state->hdcp_content_type;
+			   __entry->content_protection = state->content_protection;
+			   __entry->scaling_mode = state->scaling_mode;
+			   __entry->colorspace = state->colorspace;
+			   __entry->max_requested_bpc = state->max_requested_bpc;
+			   __entry->max_bpc = state->max_bpc;
+	    ),
+
+	    TP_printk("conn_id=%u conn_state=%p state=%p commit=%p crtc_id=%u "
+		      "best_encoder_id=%u link_status=%d self_refresh_aware=%d "
+		      "picture_aspect_ratio=%d content_type=%u "
+		      "hdcp_content_type=%u content_protection=%u scaling_mode=%u "
+		      "colorspace=%u max_requested_bpc=%u max_bpc=%u",
+		      __entry->conn_id, __entry->conn_state, __entry->state,
+		      __entry->commit, __entry->crtc_id, __entry->best_encoder_id,
+		      __entry->link_status, __entry->self_refresh_aware,
+		      __entry->picture_aspect_ratio, __entry->content_type,
+		      __entry->hdcp_content_type, __entry->content_protection,
+		      __entry->scaling_mode, __entry->colorspace,
+		      __entry->max_requested_bpc, __entry->max_bpc)
+);
+
+TRACE_EVENT(amdgpu_dm_crtc_atomic_check,
+	    TP_PROTO(const struct drm_crtc_state *state),
+	    TP_ARGS(state),
+
+	    TP_STRUCT__entry(
+			     __field(const struct drm_atomic_state *, state)
+			     __field(const struct drm_crtc_state *, crtc_state)
+			     __field(const struct drm_crtc_commit *, commit)
+			     __field(uint32_t, crtc_id)
+			     __field(bool, enable)
+			     __field(bool, active)
+			     __field(bool, planes_changed)
+			     __field(bool, mode_changed)
+			     __field(bool, active_changed)
+			     __field(bool, connectors_changed)
+			     __field(bool, zpos_changed)
+			     __field(bool, color_mgmt_changed)
+			     __field(bool, no_vblank)
+			     __field(bool, async_flip)
+			     __field(bool, vrr_enabled)
+			     __field(bool, self_refresh_active)
+			     __field(u32, plane_mask)
+			     __field(u32, connector_mask)
+			     __field(u32, encoder_mask)
+	    ),
+
+	    TP_fast_assign(
+			   __entry->state = state->state;
+			   __entry->crtc_state = state;
+			   __entry->crtc_id = state->crtc->base.id;
+			   __entry->commit = state->commit;
+			   __entry->enable = state->enable;
+			   __entry->active = state->active;
+			   __entry->planes_changed = state->planes_changed;
+			   __entry->mode_changed = state->mode_changed;
+			   __entry->active_changed = state->active_changed;
+			   __entry->connectors_changed = state->connectors_changed;
+			   __entry->zpos_changed = state->zpos_changed;
+			   __entry->color_mgmt_changed = state->color_mgmt_changed;
+			   __entry->no_vblank = state->no_vblank;
+			   __entry->async_flip = state->async_flip;
+			   __entry->vrr_enabled = state->vrr_enabled;
+			   __entry->self_refresh_active = state->self_refresh_active;
+			   __entry->plane_mask = state->plane_mask;
+			   __entry->connector_mask = state->connector_mask;
+			   __entry->encoder_mask = state->encoder_mask;
+	    ),
+
+	    TP_printk("crtc_id=%u crtc_state=%p state=%p commit=%p changed("
+		      "planes=%d mode=%d active=%d conn=%d zpos=%d color_mgmt=%d) "
+		      "state(enable=%d active=%d async_flip=%d vrr_enabled=%d "
+		      "self_refresh_active=%d no_vblank=%d) mask(plane=%x conn=%x "
+		      "enc=%x)",
+		      __entry->crtc_id, __entry->crtc_state, __entry->state,
+		      __entry->commit, __entry->planes_changed,
+		      __entry->mode_changed, __entry->active_changed,
+		      __entry->connectors_changed, __entry->zpos_changed,
+		      __entry->color_mgmt_changed, __entry->enable, __entry->active,
+		      __entry->async_flip, __entry->vrr_enabled,
+		      __entry->self_refresh_active, __entry->no_vblank,
+		      __entry->plane_mask, __entry->connector_mask,
+		      __entry->encoder_mask)
+);
+
+DECLARE_EVENT_CLASS(amdgpu_dm_plane_state_template,
+	    TP_PROTO(const struct drm_plane_state *state),
+	    TP_ARGS(state),
+	    TP_STRUCT__entry(
+			     __field(uint32_t, plane_id)
+			     __field(enum drm_plane_type, plane_type)
+			     __field(const struct drm_plane_state *, plane_state)
+			     __field(const struct drm_atomic_state *, state)
+			     __field(uint32_t, crtc_id)
+			     __field(uint32_t, fb_id)
+			     __field(uint32_t, fb_format)
+			     __field(uint8_t, fb_planes)
+			     __field(uint64_t, fb_modifier)
+			     __field(const struct dma_fence *, fence)
+			     __field(int32_t, crtc_x)
+			     __field(int32_t, crtc_y)
+			     __field(uint32_t, crtc_w)
+			     __field(uint32_t, crtc_h)
+			     __field(uint32_t, src_x)
+			     __field(uint32_t, src_y)
+			     __field(uint32_t, src_w)
+			     __field(uint32_t, src_h)
+			     __field(u32, alpha)
+			     __field(uint32_t, pixel_blend_mode)
+			     __field(unsigned int, rotation)
+			     __field(unsigned int, zpos)
+			     __field(unsigned int, normalized_zpos)
+			     __field(enum drm_color_encoding, color_encoding)
+			     __field(enum drm_color_range, color_range)
+			     __field(bool, visible)
+	    ),
+
+	    TP_fast_assign(
+			   __entry->plane_id = state->plane->base.id;
+			   __entry->plane_type = state->plane->type;
+			   __entry->plane_state = state;
+			   __entry->state = state->state;
+			   __entry->crtc_id = state->crtc ? state->crtc->base.id : 0;
+			   __entry->fb_id = state->fb ? state->fb->base.id : 0;
+			   __entry->fb_format = state->fb ? state->fb->format->format : 0;
+			   __entry->fb_planes = state->fb ? state->fb->format->num_planes : 0;
+			   __entry->fb_modifier = state->fb ? state->fb->modifier : 0;
+			   __entry->fence = state->fence;
+			   __entry->crtc_x = state->crtc_x;
+			   __entry->crtc_y = state->crtc_y;
+			   __entry->crtc_w = state->crtc_w;
+			   __entry->crtc_h = state->crtc_h;
+			   __entry->src_x = state->src_x >> 16;
+			   __entry->src_y = state->src_y >> 16;
+			   __entry->src_w = state->src_w >> 16;
+			   __entry->src_h = state->src_h >> 16;
+			   __entry->alpha = state->alpha;
+			   __entry->pixel_blend_mode = state->pixel_blend_mode;
+			   __entry->rotation = state->rotation;
+			   __entry->zpos = state->zpos;
+			   __entry->normalized_zpos = state->normalized_zpos;
+			   __entry->color_encoding = state->color_encoding;
+			   __entry->color_range = state->color_range;
+			   __entry->visible = state->visible;
+	    ),
+
+	    TP_printk("plane_id=%u plane_type=%d plane_state=%p state=%p "
+		      "crtc_id=%u fb(id=%u fmt=%c%c%c%c planes=%u mod=%llu) "
+		      "fence=%p crtc_x=%d crtc_y=%d crtc_w=%u crtc_h=%u "
+		      "src_x=%u src_y=%u src_w=%u src_h=%u alpha=%u "
+		      "pixel_blend_mode=%u rotation=%u zpos=%u "
+		      "normalized_zpos=%u color_encoding=%d color_range=%d "
+		      "visible=%d",
+		      __entry->plane_id, __entry->plane_type, __entry->plane_state,
+		      __entry->state, __entry->crtc_id, __entry->fb_id,
+		      (__entry->fb_format & 0xff) ? (__entry->fb_format & 0xff) : 'N',
+		      ((__entry->fb_format >> 8) & 0xff) ? ((__entry->fb_format >> 8) & 0xff) : 'O',
+		      ((__entry->fb_format >> 16) & 0xff) ? ((__entry->fb_format >> 16) & 0xff) : 'N',
+		      ((__entry->fb_format >> 24) & 0x7f) ? ((__entry->fb_format >> 24) & 0x7f) : 'E',
+		      __entry->fb_planes,
+		      __entry->fb_modifier, __entry->fence, __entry->crtc_x,
+		      __entry->crtc_y, __entry->crtc_w, __entry->crtc_h,
+		      __entry->src_x, __entry->src_y, __entry->src_w, __entry->src_h,
+		      __entry->alpha, __entry->pixel_blend_mode, __entry->rotation,
+		      __entry->zpos, __entry->normalized_zpos,
+		      __entry->color_encoding, __entry->color_range,
+		      __entry->visible)
+);
+
+DEFINE_EVENT(amdgpu_dm_plane_state_template, amdgpu_dm_plane_atomic_check,
+	     TP_PROTO(const struct drm_plane_state *state),
+	     TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_plane_state_template, amdgpu_dm_atomic_update_cursor,
+	     TP_PROTO(const struct drm_plane_state *state),
+	     TP_ARGS(state));
+
+TRACE_EVENT(amdgpu_dm_atomic_state_template,
+	    TP_PROTO(const struct drm_atomic_state *state),
+	    TP_ARGS(state),
+
+	    TP_STRUCT__entry(
+			     __field(const struct drm_atomic_state *, state)
+			     __field(bool, allow_modeset)
+			     __field(bool, legacy_cursor_update)
+			     __field(bool, async_update)
+			     __field(bool, duplicated)
+			     __field(int, num_connector)
+			     __field(int, num_private_objs)
+	    ),
+
+	    TP_fast_assign(
+			   __entry->state = state;
+			   __entry->allow_modeset = state->allow_modeset;
+			   __entry->legacy_cursor_update = state->legacy_cursor_update;
+			   __entry->async_update = state->async_update;
+			   __entry->duplicated = state->duplicated;
+			   __entry->num_connector = state->num_connector;
+			   __entry->num_private_objs = state->num_private_objs;
+	    ),
+
+	    TP_printk("state=%p allow_modeset=%d legacy_cursor_update=%d "
+		      "async_update=%d duplicated=%d num_connector=%d "
+		      "num_private_objs=%d",
+		      __entry->state, __entry->allow_modeset, __entry->legacy_cursor_update,
+		      __entry->async_update, __entry->duplicated, __entry->num_connector,
+		      __entry->num_private_objs)
+);
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, amdgpu_dm_atomic_commit_tail_begin,
+	     TP_PROTO(const struct drm_atomic_state *state),
+	     TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, amdgpu_dm_atomic_commit_tail_finish,
+	     TP_PROTO(const struct drm_atomic_state *state),
+	     TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, amdgpu_dm_atomic_check_begin,
+	     TP_PROTO(const struct drm_atomic_state *state),
+	     TP_ARGS(state));
+
+TRACE_EVENT(amdgpu_dm_atomic_check_finish,
+	    TP_PROTO(const struct drm_atomic_state *state, int res),
+	    TP_ARGS(state, res),
+
+	    TP_STRUCT__entry(
+			     __field(const struct drm_atomic_state *, state)
+			     __field(int, res)
+			     __field(bool, async_update)
+			     __field(bool, allow_modeset)
+	    ),
+
+	    TP_fast_assign(
+			   __entry->state = state;
+			   __entry->res = res;
+			   __entry->async_update = state->async_update;
+			   __entry->allow_modeset = state->allow_modeset;
+	    ),
+
+	    TP_printk("state=%p res=%d async_update=%d allow_modeset=%d",
+		      __entry->state, __entry->res,
+		      __entry->async_update, __entry->allow_modeset)
+);
+
+TRACE_EVENT(amdgpu_dm_dc_pipe_state,
+	    TP_PROTO(int pipe_idx, const struct dc_plane_state *plane_state,
+		     const struct dc_stream_state *stream,
+		     const struct plane_resource *plane_res,
+		     int update_flags),
+	    TP_ARGS(pipe_idx, plane_state, stream, plane_res, update_flags),
+
+	    TP_STRUCT__entry(
+			     __field(int, pipe_idx)
+			     __field(const void *, stream)
+			     __field(int, stream_w)
+			     __field(int, stream_h)
+			     __field(int, dst_x)
+			     __field(int, dst_y)
+			     __field(int, dst_w)
+			     __field(int, dst_h)
+			     __field(int, src_x)
+			     __field(int, src_y)
+			     __field(int, src_w)
+			     __field(int, src_h)
+			     __field(int, clip_x)
+			     __field(int, clip_y)
+			     __field(int, clip_w)
+			     __field(int, clip_h)
+			     __field(int, recout_x)
+			     __field(int, recout_y)
+			     __field(int, recout_w)
+			     __field(int, recout_h)
+			     __field(int, viewport_x)
+			     __field(int, viewport_y)
+			     __field(int, viewport_w)
+			     __field(int, viewport_h)
+			     __field(int, flip_immediate)
+			     __field(int, surface_pitch)
+			     __field(int, format)
+			     __field(int, swizzle)
+			     __field(unsigned int, update_flags)
+	),
+
+	TP_fast_assign(
+		       __entry->pipe_idx = pipe_idx;
+		       __entry->stream = stream;
+		       __entry->stream_w = stream->timing.h_addressable;
+		       __entry->stream_h = stream->timing.v_addressable;
+		       __entry->dst_x = plane_state->dst_rect.x;
+		       __entry->dst_y = plane_state->dst_rect.y;
+		       __entry->dst_w = plane_state->dst_rect.width;
+		       __entry->dst_h = plane_state->dst_rect.height;
+		       __entry->src_x = plane_state->src_rect.x;
+		       __entry->src_y = plane_state->src_rect.y;
+		       __entry->src_w = plane_state->src_rect.width;
+		       __entry->src_h = plane_state->src_rect.height;
+		       __entry->clip_x = plane_state->clip_rect.x;
+		       __entry->clip_y = plane_state->clip_rect.y;
+		       __entry->clip_w = plane_state->clip_rect.width;
+		       __entry->clip_h = plane_state->clip_rect.height;
+		       __entry->recout_x = plane_res->scl_data.recout.x;
+		       __entry->recout_y = plane_res->scl_data.recout.y;
+		       __entry->recout_w = plane_res->scl_data.recout.width;
+		       __entry->recout_h = plane_res->scl_data.recout.height;
+		       __entry->viewport_x = plane_res->scl_data.viewport.x;
+		       __entry->viewport_y = plane_res->scl_data.viewport.y;
+		       __entry->viewport_w = plane_res->scl_data.viewport.width;
+		       __entry->viewport_h = plane_res->scl_data.viewport.height;
+		       __entry->flip_immediate = plane_state->flip_immediate;
+		       __entry->surface_pitch = plane_state->plane_size.surface_pitch;
+		       __entry->format = plane_state->format;
+		       __entry->swizzle = plane_state->tiling_info.gfx9.swizzle;
+		       __entry->update_flags = update_flags;
+	),
+	TP_printk("pipe_idx=%d stream=%p rct(%d,%d) dst=(%d,%d,%d,%d) "
+		  "src=(%d,%d,%d,%d) clip=(%d,%d,%d,%d) recout=(%d,%d,%d,%d) "
+		  "viewport=(%d,%d,%d,%d) flip_immediate=%d pitch=%d "
+		  "format=%d swizzle=%d update_flags=%x",
+		  __entry->pipe_idx,
+		  __entry->stream,
+		  __entry->stream_w,
+		  __entry->stream_h,
+		  __entry->dst_x,
+		  __entry->dst_y,
+		  __entry->dst_w,
+		  __entry->dst_h,
+		  __entry->src_x,
+		  __entry->src_y,
+		  __entry->src_w,
+		  __entry->src_h,
+		  __entry->clip_x,
+		  __entry->clip_y,
+		  __entry->clip_w,
+		  __entry->clip_h,
+		  __entry->recout_x,
+		  __entry->recout_y,
+		  __entry->recout_w,
+		  __entry->recout_h,
+		  __entry->viewport_x,
+		  __entry->viewport_y,
+		  __entry->viewport_w,
+		  __entry->viewport_h,
+		  __entry->flip_immediate,
+		  __entry->surface_pitch,
+		  __entry->format,
+		  __entry->swizzle,
+		  __entry->update_flags
+	)
+);
+
+TRACE_EVENT(amdgpu_dm_dc_clocks_state,
+	    TP_PROTO(const struct dc_clocks *clk),
+	    TP_ARGS(clk),
+
+	    TP_STRUCT__entry(
+			     __field(int, dispclk_khz)
+			     __field(int, dppclk_khz)
+			     __field(int, disp_dpp_voltage_level_khz)
+			     __field(int, dcfclk_khz)
+			     __field(int, socclk_khz)
+			     __field(int, dcfclk_deep_sleep_khz)
+			     __field(int, fclk_khz)
+			     __field(int, phyclk_khz)
+			     __field(int, dramclk_khz)
+			     __field(int, p_state_change_support)
+			     __field(int, prev_p_state_change_support)
+			     __field(int, pwr_state)
+			     __field(int, dtm_level)
+			     __field(int, max_supported_dppclk_khz)
+			     __field(int, max_supported_dispclk_khz)
+			     __field(int, bw_dppclk_khz)
+			     __field(int, bw_dispclk_khz)
+	    ),
+	    TP_fast_assign(
+			   __entry->dispclk_khz = clk->dispclk_khz;
+			   __entry->dppclk_khz = clk->dppclk_khz;
+			   __entry->dcfclk_khz = clk->dcfclk_khz;
+			   __entry->socclk_khz = clk->socclk_khz;
+			   __entry->dcfclk_deep_sleep_khz = clk->dcfclk_deep_sleep_khz;
+			   __entry->fclk_khz = clk->fclk_khz;
+			   __entry->phyclk_khz = clk->phyclk_khz;
+			   __entry->dramclk_khz = clk->dramclk_khz;
+			   __entry->p_state_change_support = clk->p_state_change_support;
+			   __entry->prev_p_state_change_support = clk->prev_p_state_change_support;
+			   __entry->pwr_state = clk->pwr_state;
+			   __entry->prev_p_state_change_support = clk->prev_p_state_change_support;
+			   __entry->dtm_level = clk->dtm_level;
+			   __entry->max_supported_dppclk_khz = clk->max_supported_dppclk_khz;
+			   __entry->max_supported_dispclk_khz = clk->max_supported_dispclk_khz;
+			   __entry->bw_dppclk_khz = clk->bw_dppclk_khz;
+			   __entry->bw_dispclk_khz = clk->bw_dispclk_khz;
+	    ),
+	    TP_printk("dispclk_khz=%d dppclk_khz=%d disp_dpp_voltage_level_khz=%d dcfclk_khz=%d socclk_khz=%d "
+		      "dcfclk_deep_sleep_khz=%d fclk_khz=%d phyclk_khz=%d "
+		      "dramclk_khz=%d p_state_change_support=%d "
+		      "prev_p_state_change_support=%d pwr_state=%d prev_p_state_change_support=%d "
+		      "dtm_level=%d max_supported_dppclk_khz=%d max_supported_dispclk_khz=%d "
+		      "bw_dppclk_khz=%d bw_dispclk_khz=%d ",
+		      __entry->dispclk_khz,
+		      __entry->dppclk_khz,
+		      __entry->disp_dpp_voltage_level_khz,
+		      __entry->dcfclk_khz,
+		      __entry->socclk_khz,
+		      __entry->dcfclk_deep_sleep_khz,
+		      __entry->fclk_khz,
+		      __entry->phyclk_khz,
+		      __entry->dramclk_khz,
+		      __entry->p_state_change_support,
+		      __entry->prev_p_state_change_support,
+		      __entry->pwr_state,
+		      __entry->prev_p_state_change_support,
+		      __entry->dtm_level,
+		      __entry->max_supported_dppclk_khz,
+		      __entry->max_supported_dispclk_khz,
+		      __entry->bw_dppclk_khz,
+		      __entry->bw_dispclk_khz
+	    )
+);
+
+TRACE_EVENT(amdgpu_dm_dce_clocks_state,
+	    TP_PROTO(const struct dce_bw_output *clk),
+	    TP_ARGS(clk),
+
+	    TP_STRUCT__entry(
+			     __field(bool, cpuc_state_change_enable)
+			     __field(bool, cpup_state_change_enable)
+			     __field(bool, stutter_mode_enable)
+			     __field(bool, nbp_state_change_enable)
+			     __field(bool, all_displays_in_sync)
+			     __field(int, sclk_khz)
+			     __field(int, sclk_deep_sleep_khz)
+			     __field(int, yclk_khz)
+			     __field(int, dispclk_khz)
+			     __field(int, blackout_recovery_time_us)
+	    ),
+	    TP_fast_assign(
+			   __entry->cpuc_state_change_enable = clk->cpuc_state_change_enable;
+			   __entry->cpup_state_change_enable = clk->cpup_state_change_enable;
+			   __entry->stutter_mode_enable = clk->stutter_mode_enable;
+			   __entry->nbp_state_change_enable = clk->nbp_state_change_enable;
+			   __entry->all_displays_in_sync = clk->all_displays_in_sync;
+			   __entry->sclk_khz = clk->sclk_khz;
+			   __entry->sclk_deep_sleep_khz = clk->sclk_deep_sleep_khz;
+			   __entry->yclk_khz = clk->yclk_khz;
+			   __entry->dispclk_khz = clk->dispclk_khz;
+			   __entry->blackout_recovery_time_us = clk->blackout_recovery_time_us;
+	    ),
+	    TP_printk("cpuc_state_change_enable=%d cpup_state_change_enable=%d stutter_mode_enable=%d "
+		      "nbp_state_change_enable=%d all_displays_in_sync=%d sclk_khz=%d sclk_deep_sleep_khz=%d "
+		      "yclk_khz=%d dispclk_khz=%d blackout_recovery_time_us=%d",
+		      __entry->cpuc_state_change_enable,
+		      __entry->cpup_state_change_enable,
+		      __entry->stutter_mode_enable,
+		      __entry->nbp_state_change_enable,
+		      __entry->all_displays_in_sync,
+		      __entry->sclk_khz,
+		      __entry->sclk_deep_sleep_khz,
+		      __entry->yclk_khz,
+		      __entry->dispclk_khz,
+		      __entry->blackout_recovery_time_us
+	    )
+);
+
+TRACE_EVENT(amdgpu_dmub_trace_high_irq,
+	TP_PROTO(uint32_t trace_code, uint32_t tick_count, uint32_t param0,
+		 uint32_t param1),
+	TP_ARGS(trace_code, tick_count, param0, param1),
+	TP_STRUCT__entry(
+		__field(uint32_t, trace_code)
+		__field(uint32_t, tick_count)
+		__field(uint32_t, param0)
+		__field(uint32_t, param1)
+		),
+	TP_fast_assign(
+		__entry->trace_code = trace_code;
+		__entry->tick_count = tick_count;
+		__entry->param0 = param0;
+		__entry->param1 = param1;
+	),
+	TP_printk("trace_code=%u tick_count=%u param0=%u param1=%u",
+		  __entry->trace_code, __entry->tick_count,
+		  __entry->param0, __entry->param1)
+);
+
+TRACE_EVENT(amdgpu_refresh_rate_track,
+	TP_PROTO(int crtc_index, ktime_t refresh_rate_ns, uint32_t refresh_rate_hz),
+	TP_ARGS(crtc_index, refresh_rate_ns, refresh_rate_hz),
+	TP_STRUCT__entry(
+		__field(int, crtc_index)
+		__field(ktime_t, refresh_rate_ns)
+		__field(uint32_t, refresh_rate_hz)
+		),
+	TP_fast_assign(
+		__entry->crtc_index = crtc_index;
+		__entry->refresh_rate_ns = refresh_rate_ns;
+		__entry->refresh_rate_hz = refresh_rate_hz;
+	),
+	TP_printk("crtc_index=%d refresh_rate=%dHz (%lld)",
+		  __entry->crtc_index,
+		  __entry->refresh_rate_hz,
+		  __entry->refresh_rate_ns)
+);
+
+TRACE_EVENT(dcn_fpu,
+	    TP_PROTO(bool begin, const char *function, const int line, const int recursion_depth),
+	    TP_ARGS(begin, function, line, recursion_depth),
+
+	    TP_STRUCT__entry(
+			     __field(bool, begin)
+			     __field(const char *, function)
+			     __field(int, line)
+			     __field(int, recursion_depth)
+	    ),
+	    TP_fast_assign(
+			   __entry->begin = begin;
+			   __entry->function = function;
+			   __entry->line = line;
+			   __entry->recursion_depth = recursion_depth;
+	    ),
+	    TP_printk("%s: recursion_depth: %d: %s()+%d:",
+		      __entry->begin ? "begin" : "end",
+		      __entry->recursion_depth,
+		      __entry->function,
+		      __entry->line
+	    )
+);
+
+TRACE_EVENT(dcn_optc_lock_unlock_state,
+	    TP_PROTO(const struct optc *optc_state, int instance, bool lock, const char *function, const int line),
+	    TP_ARGS(optc_state, instance, lock, function, line),
+
+	    TP_STRUCT__entry(
+			     __field(const char *, function)
+			     __field(int, instance)
+			     __field(bool, lock)
+			     __field(int, line)
+			     __field(int, opp_count)
+			     __field(int, max_h_total)
+			     __field(int, max_v_total)
+			     __field(int, min_h_blank)
+			     __field(int, min_h_sync_width)
+			     __field(int, min_v_sync_width)
+			     __field(int, min_v_blank)
+			     __field(int, min_v_blank_interlace)
+			     __field(int, vstartup_start)
+			     __field(int, vupdate_offset)
+			     __field(int, vupdate_width)
+			     __field(int, vready_offset)
+	    ),
+	    TP_fast_assign(
+			   __entry->function = function;
+			   __entry->instance = instance;
+			   __entry->lock = lock;
+			   __entry->line = line;
+			   __entry->opp_count = optc_state->opp_count;
+			   __entry->max_h_total = optc_state->max_h_total;
+			   __entry->max_v_total = optc_state->max_v_total;
+			   __entry->min_h_blank = optc_state->min_h_blank;
+			   __entry->min_h_sync_width = optc_state->min_h_sync_width;
+			   __entry->min_v_sync_width = optc_state->min_v_sync_width;
+			   __entry->min_v_blank = optc_state->min_v_blank;
+			   __entry->min_v_blank_interlace = optc_state->min_v_blank_interlace;
+			   __entry->vstartup_start = optc_state->vstartup_start;
+			   __entry->vupdate_offset = optc_state->vupdate_offset;
+			   __entry->vupdate_width = optc_state->vupdate_width;
+			   __entry->vready_offset = optc_state->vupdate_offset;
+	    ),
+	    TP_printk("%s: %s()+%d: optc_instance=%d opp_count=%d max_h_total=%d max_v_total=%d "
+		      "min_h_blank=%d min_h_sync_width=%d min_v_sync_width=%d min_v_blank=%d "
+		      "min_v_blank_interlace=%d vstartup_start=%d vupdate_offset=%d vupdate_width=%d "
+		      "vready_offset=%d",
+		      __entry->lock ? "Lock" : "Unlock",
+		      __entry->function,
+		      __entry->line,
+		      __entry->instance,
+		      __entry->opp_count,
+		      __entry->max_h_total,
+		      __entry->max_v_total,
+		      __entry->min_h_blank,
+		      __entry->min_h_sync_width,
+		      __entry->min_v_sync_width,
+		      __entry->min_v_blank,
+		      __entry->min_v_blank_interlace,
+		      __entry->vstartup_start,
+		      __entry->vupdate_offset,
+		      __entry->vupdate_width,
+		      __entry->vready_offset
+	    )
+);
+
+#endif /* _AMDGPU_DM_TRACE_H_ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE amdgpu_dm_trace
+#include <trace/define_trace.h>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
new file mode 100644
index 000000000..172aa10a8
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dc_trace.h"
+
+#if defined(CONFIG_X86)
+#include <asm/fpu/api.h>
+#elif defined(CONFIG_PPC64)
+#include <asm/switch_to.h>
+#include <asm/cputable.h>
+#elif defined(CONFIG_ARM64)
+#include <asm/neon.h>
+#elif defined(CONFIG_LOONGARCH)
+#include <asm/fpu.h>
+#endif
+
+/**
+ * DOC: DC FPU manipulation overview
+ *
+ * DC core uses FPU operations in multiple parts of the code, which requires a
+ * more specialized way to manage these areas' entrance. To fulfill this
+ * requirement, we created some wrapper functions that encapsulate
+ * kernel_fpu_begin/end to better fit our need in the display component. In
+ * summary, in this file, you can find functions related to FPU operation
+ * management.
+ */
+
+static DEFINE_PER_CPU(int, fpu_recursion_depth);
+
+/**
+ * dc_assert_fp_enabled - Check if FPU protection is enabled
+ *
+ * This function tells if the code is already under FPU protection or not. A
+ * function that works as an API for a set of FPU operations can use this
+ * function for checking if the caller invoked it after DC_FP_START(). For
+ * example, take a look at dcn20_fpu.c file.
+ */
+inline void dc_assert_fp_enabled(void)
+{
+	int *pcpu, depth = 0;
+
+	pcpu = get_cpu_ptr(&fpu_recursion_depth);
+	depth = *pcpu;
+	put_cpu_ptr(&fpu_recursion_depth);
+
+	ASSERT(depth >= 1);
+}
+
+/**
+ * dc_fpu_begin - Enables FPU protection
+ * @function_name: A string containing the function name for debug purposes
+ *   (usually __func__)
+ *
+ * @line: A line number where DC_FP_START was invoked for debug purpose
+ *   (usually __LINE__)
+ *
+ * This function is responsible for managing the use of kernel_fpu_begin() with
+ * the advantage of providing an event trace for debugging.
+ *
+ * Note: Do not call this function directly; always use DC_FP_START().
+ */
+void dc_fpu_begin(const char *function_name, const int line)
+{
+	int *pcpu;
+
+	pcpu = get_cpu_ptr(&fpu_recursion_depth);
+	*pcpu += 1;
+
+	if (*pcpu == 1) {
+#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
+		migrate_disable();
+		kernel_fpu_begin();
+#elif defined(CONFIG_PPC64)
+		if (cpu_has_feature(CPU_FTR_VSX_COMP)) {
+			preempt_disable();
+			enable_kernel_vsx();
+		} else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) {
+			preempt_disable();
+			enable_kernel_altivec();
+		} else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) {
+			preempt_disable();
+			enable_kernel_fp();
+		}
+#elif defined(CONFIG_ARM64)
+		kernel_neon_begin();
+#endif
+	}
+
+	TRACE_DCN_FPU(true, function_name, line, *pcpu);
+	put_cpu_ptr(&fpu_recursion_depth);
+}
+
+/**
+ * dc_fpu_end - Disable FPU protection
+ * @function_name: A string containing the function name for debug purposes
+ * @line: A-line number where DC_FP_END was invoked for debug purpose
+ *
+ * This function is responsible for managing the use of kernel_fpu_end() with
+ * the advantage of providing an event trace for debugging.
+ *
+ * Note: Do not call this function directly; always use DC_FP_END().
+ */
+void dc_fpu_end(const char *function_name, const int line)
+{
+	int *pcpu;
+
+	pcpu = get_cpu_ptr(&fpu_recursion_depth);
+	*pcpu -= 1;
+	if (*pcpu <= 0) {
+#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
+		kernel_fpu_end();
+		migrate_enable();
+#elif defined(CONFIG_PPC64)
+		if (cpu_has_feature(CPU_FTR_VSX_COMP)) {
+			disable_kernel_vsx();
+			preempt_enable();
+		} else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) {
+			disable_kernel_altivec();
+			preempt_enable();
+		} else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) {
+			disable_kernel_fp();
+			preempt_enable();
+		}
+#elif defined(CONFIG_ARM64)
+		kernel_neon_end();
+#endif
+	}
+
+	TRACE_DCN_FPU(false, function_name, line, *pcpu);
+	put_cpu_ptr(&fpu_recursion_depth);
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.h b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.h
new file mode 100644
index 000000000..b8275b397
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DC_FPU_H__
+#define __DC_FPU_H__
+
+void dc_assert_fp_enabled(void);
+void dc_fpu_begin(const char *function_name, const int line);
+void dc_fpu_end(const char *function_name, const int line);
+
+#endif /* __DC_FPU_H__ */