Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 1692 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
new file mode 100644
index 000000000..aabde6ebb
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -0,0 +1,1692 @@
+/*
+ * Copyright 2007-8 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat 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: Dave Airlie
+ *          Alex Deucher
+ */
+
+#include <drm/amdgpu_drm.h>
+#include "amdgpu.h"
+#include "amdgpu_i2c.h"
+#include "atom.h"
+#include "amdgpu_connectors.h"
+#include "amdgpu_display.h"
+#include "soc15_common.h"
+#include "gc/gc_11_0_0_offset.h"
+#include "gc/gc_11_0_0_sh_mask.h"
+#include <asm/div64.h>
+
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_damage_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_vblank.h>
+
+static int amdgpu_display_framebuffer_init(struct drm_device *dev,
+					   struct amdgpu_framebuffer *rfb,
+					   const struct drm_mode_fb_cmd2 *mode_cmd,
+					   struct drm_gem_object *obj);
+
+static void amdgpu_display_flip_callback(struct dma_fence *f,
+					 struct dma_fence_cb *cb)
+{
+	struct amdgpu_flip_work *work =
+		container_of(cb, struct amdgpu_flip_work, cb);
+
+	dma_fence_put(f);
+	schedule_work(&work->flip_work.work);
+}
+
+static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work,
+					     struct dma_fence **f)
+{
+	struct dma_fence *fence= *f;
+
+	if (fence == NULL)
+		return false;
+
+	*f = NULL;
+
+	if (!dma_fence_add_callback(fence, &work->cb,
+				    amdgpu_display_flip_callback))
+		return true;
+
+	dma_fence_put(fence);
+	return false;
+}
+
+static void amdgpu_display_flip_work_func(struct work_struct *__work)
+{
+	struct delayed_work *delayed_work =
+		container_of(__work, struct delayed_work, work);
+	struct amdgpu_flip_work *work =
+		container_of(delayed_work, struct amdgpu_flip_work, flip_work);
+	struct amdgpu_device *adev = work->adev;
+	struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id];
+
+	struct drm_crtc *crtc = &amdgpu_crtc->base;
+	unsigned long flags;
+	unsigned int i;
+	int vpos, hpos;
+
+	for (i = 0; i < work->shared_count; ++i)
+		if (amdgpu_display_flip_handle_fence(work, &work->shared[i]))
+			return;
+
+	/* Wait until we're out of the vertical blank period before the one
+	 * targeted by the flip
+	 */
+	if (amdgpu_crtc->enabled &&
+	    (amdgpu_display_get_crtc_scanoutpos(adev_to_drm(adev), work->crtc_id, 0,
+						&vpos, &hpos, NULL, NULL,
+						&crtc->hwmode)
+	     & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
+	    (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
+	    (int)(work->target_vblank -
+		  amdgpu_get_vblank_counter_kms(crtc)) > 0) {
+		schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000));
+		return;
+	}
+
+	/* We borrow the event spin lock for protecting flip_status */
+	spin_lock_irqsave(&crtc->dev->event_lock, flags);
+
+	/* Do the flip (mmio) */
+	adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async);
+
+	/* Set the flip status */
+	amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
+	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+
+
+	drm_dbg_vbl(adev_to_drm(adev),
+		    "crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n",
+		    amdgpu_crtc->crtc_id, amdgpu_crtc, work);
+
+}
+
+/*
+ * Handle unpin events outside the interrupt handler proper.
+ */
+static void amdgpu_display_unpin_work_func(struct work_struct *__work)
+{
+	struct amdgpu_flip_work *work =
+		container_of(__work, struct amdgpu_flip_work, unpin_work);
+	int r;
+
+	/* unpin of the old buffer */
+	r = amdgpu_bo_reserve(work->old_abo, true);
+	if (likely(r == 0)) {
+		amdgpu_bo_unpin(work->old_abo);
+		amdgpu_bo_unreserve(work->old_abo);
+	} else
+		DRM_ERROR("failed to reserve buffer after flip\n");
+
+	amdgpu_bo_unref(&work->old_abo);
+	kfree(work->shared);
+	kfree(work);
+}
+
+int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
+				struct drm_framebuffer *fb,
+				struct drm_pending_vblank_event *event,
+				uint32_t page_flip_flags, uint32_t target,
+				struct drm_modeset_acquire_ctx *ctx)
+{
+	struct drm_device *dev = crtc->dev;
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+	struct drm_gem_object *obj;
+	struct amdgpu_flip_work *work;
+	struct amdgpu_bo *new_abo;
+	unsigned long flags;
+	u64 tiling_flags;
+	int i, r;
+
+	work = kzalloc(sizeof(*work), GFP_KERNEL);
+	if (work == NULL)
+		return -ENOMEM;
+
+	INIT_DELAYED_WORK(&work->flip_work, amdgpu_display_flip_work_func);
+	INIT_WORK(&work->unpin_work, amdgpu_display_unpin_work_func);
+
+	work->event = event;
+	work->adev = adev;
+	work->crtc_id = amdgpu_crtc->crtc_id;
+	work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
+
+	/* schedule unpin of the old buffer */
+	obj = crtc->primary->fb->obj[0];
+
+	/* take a reference to the old object */
+	work->old_abo = gem_to_amdgpu_bo(obj);
+	amdgpu_bo_ref(work->old_abo);
+
+	obj = fb->obj[0];
+	new_abo = gem_to_amdgpu_bo(obj);
+
+	/* pin the new buffer */
+	r = amdgpu_bo_reserve(new_abo, false);
+	if (unlikely(r != 0)) {
+		DRM_ERROR("failed to reserve new abo buffer before flip\n");
+		goto cleanup;
+	}
+
+	if (!adev->enable_virtual_display) {
+		r = amdgpu_bo_pin(new_abo,
+				  amdgpu_display_supported_domains(adev, new_abo->flags));
+		if (unlikely(r != 0)) {
+			DRM_ERROR("failed to pin new abo buffer before flip\n");
+			goto unreserve;
+		}
+	}
+
+	r = amdgpu_ttm_alloc_gart(&new_abo->tbo);
+	if (unlikely(r != 0)) {
+		DRM_ERROR("%p bind failed\n", new_abo);
+		goto unpin;
+	}
+
+	r = dma_resv_get_fences(new_abo->tbo.base.resv, DMA_RESV_USAGE_WRITE,
+				&work->shared_count,
+				&work->shared);
+	if (unlikely(r != 0)) {
+		DRM_ERROR("failed to get fences for buffer\n");
+		goto unpin;
+	}
+
+	amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags);
+	amdgpu_bo_unreserve(new_abo);
+
+	if (!adev->enable_virtual_display)
+		work->base = amdgpu_bo_gpu_offset(new_abo);
+	work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) +
+		amdgpu_get_vblank_counter_kms(crtc);
+
+	/* we borrow the event spin lock for protecting flip_wrok */
+	spin_lock_irqsave(&crtc->dev->event_lock, flags);
+	if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) {
+		DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
+		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+		r = -EBUSY;
+		goto pflip_cleanup;
+	}
+
+	amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING;
+	amdgpu_crtc->pflip_works = work;
+
+
+	DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n",
+					 amdgpu_crtc->crtc_id, amdgpu_crtc, work);
+	/* update crtc fb */
+	crtc->primary->fb = fb;
+	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+	amdgpu_display_flip_work_func(&work->flip_work.work);
+	return 0;
+
+pflip_cleanup:
+	if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) {
+		DRM_ERROR("failed to reserve new abo in error path\n");
+		goto cleanup;
+	}
+unpin:
+	if (!adev->enable_virtual_display)
+		amdgpu_bo_unpin(new_abo);
+
+unreserve:
+	amdgpu_bo_unreserve(new_abo);
+
+cleanup:
+	amdgpu_bo_unref(&work->old_abo);
+	for (i = 0; i < work->shared_count; ++i)
+		dma_fence_put(work->shared[i]);
+	kfree(work->shared);
+	kfree(work);
+
+	return r;
+}
+
+int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
+				   struct drm_modeset_acquire_ctx *ctx)
+{
+	struct drm_device *dev;
+	struct amdgpu_device *adev;
+	struct drm_crtc *crtc;
+	bool active = false;
+	int ret;
+
+	if (!set || !set->crtc)
+		return -EINVAL;
+
+	dev = set->crtc->dev;
+
+	ret = pm_runtime_get_sync(dev->dev);
+	if (ret < 0)
+		goto out;
+
+	ret = drm_crtc_helper_set_config(set, ctx);
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+		if (crtc->enabled)
+			active = true;
+
+	pm_runtime_mark_last_busy(dev->dev);
+
+	adev = drm_to_adev(dev);
+	/* if we have active crtcs and we don't have a power ref,
+	 * take the current one
+	 */
+	if (active && !adev->have_disp_power_ref) {
+		adev->have_disp_power_ref = true;
+		return ret;
+	}
+	/* if we have no active crtcs, then go to
+	 * drop the power ref we got before
+	 */
+	if (!active && adev->have_disp_power_ref)
+		adev->have_disp_power_ref = false;
+out:
+	/* drop the power reference we got coming in here */
+	pm_runtime_put_autosuspend(dev->dev);
+	return ret;
+}
+
+static const char *encoder_names[41] = {
+	"NONE",
+	"INTERNAL_LVDS",
+	"INTERNAL_TMDS1",
+	"INTERNAL_TMDS2",
+	"INTERNAL_DAC1",
+	"INTERNAL_DAC2",
+	"INTERNAL_SDVOA",
+	"INTERNAL_SDVOB",
+	"SI170B",
+	"CH7303",
+	"CH7301",
+	"INTERNAL_DVO1",
+	"EXTERNAL_SDVOA",
+	"EXTERNAL_SDVOB",
+	"TITFP513",
+	"INTERNAL_LVTM1",
+	"VT1623",
+	"HDMI_SI1930",
+	"HDMI_INTERNAL",
+	"INTERNAL_KLDSCP_TMDS1",
+	"INTERNAL_KLDSCP_DVO1",
+	"INTERNAL_KLDSCP_DAC1",
+	"INTERNAL_KLDSCP_DAC2",
+	"SI178",
+	"MVPU_FPGA",
+	"INTERNAL_DDI",
+	"VT1625",
+	"HDMI_SI1932",
+	"DP_AN9801",
+	"DP_DP501",
+	"INTERNAL_UNIPHY",
+	"INTERNAL_KLDSCP_LVTMA",
+	"INTERNAL_UNIPHY1",
+	"INTERNAL_UNIPHY2",
+	"NUTMEG",
+	"TRAVIS",
+	"INTERNAL_VCE",
+	"INTERNAL_UNIPHY3",
+	"HDMI_ANX9805",
+	"INTERNAL_AMCLK",
+	"VIRTUAL",
+};
+
+static const char *hpd_names[6] = {
+	"HPD1",
+	"HPD2",
+	"HPD3",
+	"HPD4",
+	"HPD5",
+	"HPD6",
+};
+
+void amdgpu_display_print_display_setup(struct drm_device *dev)
+{
+	struct drm_connector *connector;
+	struct amdgpu_connector *amdgpu_connector;
+	struct drm_encoder *encoder;
+	struct amdgpu_encoder *amdgpu_encoder;
+	struct drm_connector_list_iter iter;
+	uint32_t devices;
+	int i = 0;
+
+	drm_connector_list_iter_begin(dev, &iter);
+	DRM_INFO("AMDGPU Display Connectors\n");
+	drm_for_each_connector_iter(connector, &iter) {
+		amdgpu_connector = to_amdgpu_connector(connector);
+		DRM_INFO("Connector %d:\n", i);
+		DRM_INFO("  %s\n", connector->name);
+		if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE)
+			DRM_INFO("  %s\n", hpd_names[amdgpu_connector->hpd.hpd]);
+		if (amdgpu_connector->ddc_bus) {
+			DRM_INFO("  DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+				 amdgpu_connector->ddc_bus->rec.mask_clk_reg,
+				 amdgpu_connector->ddc_bus->rec.mask_data_reg,
+				 amdgpu_connector->ddc_bus->rec.a_clk_reg,
+				 amdgpu_connector->ddc_bus->rec.a_data_reg,
+				 amdgpu_connector->ddc_bus->rec.en_clk_reg,
+				 amdgpu_connector->ddc_bus->rec.en_data_reg,
+				 amdgpu_connector->ddc_bus->rec.y_clk_reg,
+				 amdgpu_connector->ddc_bus->rec.y_data_reg);
+			if (amdgpu_connector->router.ddc_valid)
+				DRM_INFO("  DDC Router 0x%x/0x%x\n",
+					 amdgpu_connector->router.ddc_mux_control_pin,
+					 amdgpu_connector->router.ddc_mux_state);
+			if (amdgpu_connector->router.cd_valid)
+				DRM_INFO("  Clock/Data Router 0x%x/0x%x\n",
+					 amdgpu_connector->router.cd_mux_control_pin,
+					 amdgpu_connector->router.cd_mux_state);
+		} else {
+			if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
+			    connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
+			    connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
+			    connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
+			    connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+			    connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
+				DRM_INFO("  DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
+		}
+		DRM_INFO("  Encoders:\n");
+		list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+			amdgpu_encoder = to_amdgpu_encoder(encoder);
+			devices = amdgpu_encoder->devices & amdgpu_connector->devices;
+			if (devices) {
+				if (devices & ATOM_DEVICE_CRT1_SUPPORT)
+					DRM_INFO("    CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_CRT2_SUPPORT)
+					DRM_INFO("    CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_LCD1_SUPPORT)
+					DRM_INFO("    LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP1_SUPPORT)
+					DRM_INFO("    DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP2_SUPPORT)
+					DRM_INFO("    DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP3_SUPPORT)
+					DRM_INFO("    DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP4_SUPPORT)
+					DRM_INFO("    DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP5_SUPPORT)
+					DRM_INFO("    DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_DFP6_SUPPORT)
+					DRM_INFO("    DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_TV1_SUPPORT)
+					DRM_INFO("    TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+				if (devices & ATOM_DEVICE_CV_SUPPORT)
+					DRM_INFO("    CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
+			}
+		}
+		i++;
+	}
+	drm_connector_list_iter_end(&iter);
+}
+
+bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector,
+			      bool use_aux)
+{
+	u8 out = 0x0;
+	u8 buf[8];
+	int ret;
+	struct i2c_msg msgs[] = {
+		{
+			.addr = DDC_ADDR,
+			.flags = 0,
+			.len = 1,
+			.buf = &out,
+		},
+		{
+			.addr = DDC_ADDR,
+			.flags = I2C_M_RD,
+			.len = 8,
+			.buf = buf,
+		}
+	};
+
+	/* on hw with routers, select right port */
+	if (amdgpu_connector->router.ddc_valid)
+		amdgpu_i2c_router_select_ddc_port(amdgpu_connector);
+
+	if (use_aux)
+		ret = i2c_transfer(&amdgpu_connector->ddc_bus->aux.ddc, msgs, 2);
+	else
+		ret = i2c_transfer(&amdgpu_connector->ddc_bus->adapter, msgs, 2);
+
+	if (ret != 2)
+		/* Couldn't find an accessible DDC on this connector */
+		return false;
+	/* Probe also for valid EDID header
+	 * EDID header starts with:
+	 * 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00.
+	 * Only the first 6 bytes must be valid as
+	 * drm_edid_block_valid() can fix the last 2 bytes
+	 */
+	if (drm_edid_header_is_valid(buf) < 6) {
+		/* Couldn't find an accessible EDID on this
+		 * connector
+		 */
+		return false;
+	}
+	return true;
+}
+
+static int amdgpu_dirtyfb(struct drm_framebuffer *fb, struct drm_file *file,
+			  unsigned int flags, unsigned int color,
+			  struct drm_clip_rect *clips, unsigned int num_clips)
+{
+
+	if (file)
+		return -ENOSYS;
+
+	return drm_atomic_helper_dirtyfb(fb, file, flags, color, clips,
+					 num_clips);
+}
+
+static const struct drm_framebuffer_funcs amdgpu_fb_funcs = {
+	.destroy = drm_gem_fb_destroy,
+	.create_handle = drm_gem_fb_create_handle,
+};
+
+static const struct drm_framebuffer_funcs amdgpu_fb_funcs_atomic = {
+	.destroy = drm_gem_fb_destroy,
+	.create_handle = drm_gem_fb_create_handle,
+	.dirty = amdgpu_dirtyfb
+};
+
+uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev,
+					  uint64_t bo_flags)
+{
+	uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
+
+#if defined(CONFIG_DRM_AMD_DC)
+	/*
+	 * if amdgpu_bo_support_uswc returns false it means that USWC mappings
+	 * is not supported for this board. But this mapping is required
+	 * to avoid hang caused by placement of scanout BO in GTT on certain
+	 * APUs. So force the BO placement to VRAM in case this architecture
+	 * will not allow USWC mappings.
+	 * Also, don't allow GTT domain if the BO doesn't have USWC flag set.
+	 */
+	if ((bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) &&
+	    amdgpu_bo_support_uswc(bo_flags) &&
+	    amdgpu_device_asic_has_dc_support(adev->asic_type) &&
+	    adev->mode_info.gpu_vm_support)
+		domain |= AMDGPU_GEM_DOMAIN_GTT;
+#endif
+
+	return domain;
+}
+
+static const struct drm_format_info dcc_formats[] = {
+	{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	   .has_alpha = true, },
+	{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 2,
+	  .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 2,
+	  .cpp = { 2, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+};
+
+static const struct drm_format_info dcc_retile_formats[] = {
+	{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	   .has_alpha = true, },
+	{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+	{ .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 3,
+	  .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
+	  .has_alpha = true, },
+	{ .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 3,
+	  .cpp = { 2, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
+};
+
+static const struct drm_format_info *
+lookup_format_info(const struct drm_format_info formats[],
+		  int num_formats, u32 format)
+{
+	int i;
+
+	for (i = 0; i < num_formats; i++) {
+		if (formats[i].format == format)
+			return &formats[i];
+	}
+
+	return NULL;
+}
+
+const struct drm_format_info *
+amdgpu_lookup_format_info(u32 format, uint64_t modifier)
+{
+	if (!IS_AMD_FMT_MOD(modifier))
+		return NULL;
+
+	if (AMD_FMT_MOD_GET(DCC_RETILE, modifier))
+		return lookup_format_info(dcc_retile_formats,
+					  ARRAY_SIZE(dcc_retile_formats),
+					  format);
+
+	if (AMD_FMT_MOD_GET(DCC, modifier))
+		return lookup_format_info(dcc_formats, ARRAY_SIZE(dcc_formats),
+					  format);
+
+	/* returning NULL will cause the default format structs to be used. */
+	return NULL;
+}
+
+
+/*
+ * Tries to extract the renderable DCC offset from the opaque metadata attached
+ * to the buffer.
+ */
+static int
+extract_render_dcc_offset(struct amdgpu_device *adev,
+			  struct drm_gem_object *obj,
+			  uint64_t *offset)
+{
+	struct amdgpu_bo *rbo;
+	int r = 0;
+	uint32_t metadata[10]; /* Something that fits a descriptor + header. */
+	uint32_t size;
+
+	rbo = gem_to_amdgpu_bo(obj);
+	r = amdgpu_bo_reserve(rbo, false);
+
+	if (unlikely(r)) {
+		/* Don't show error message when returning -ERESTARTSYS */
+		if (r != -ERESTARTSYS)
+			DRM_ERROR("Unable to reserve buffer: %d\n", r);
+		return r;
+	}
+
+	r = amdgpu_bo_get_metadata(rbo, metadata, sizeof(metadata), &size, NULL);
+	amdgpu_bo_unreserve(rbo);
+
+	if (r)
+		return r;
+
+	/*
+	 * The first word is the metadata version, and we need space for at least
+	 * the version + pci vendor+device id + 8 words for a descriptor.
+	 */
+	if (size < 40  || metadata[0] != 1)
+		return -EINVAL;
+
+	if (adev->family >= AMDGPU_FAMILY_NV) {
+		/* resource word 6/7 META_DATA_ADDRESS{_LO} */
+		*offset = ((u64)metadata[9] << 16u) |
+			  ((metadata[8] & 0xFF000000u) >> 16);
+	} else {
+		/* resource word 5/7 META_DATA_ADDRESS */
+		*offset = ((u64)metadata[9] << 8u) |
+			  ((u64)(metadata[7] & 0x1FE0000u) << 23);
+	}
+
+	return 0;
+}
+
+static int convert_tiling_flags_to_modifier(struct amdgpu_framebuffer *afb)
+{
+	struct amdgpu_device *adev = drm_to_adev(afb->base.dev);
+	uint64_t modifier = 0;
+	int num_pipes = 0;
+	int num_pkrs = 0;
+
+	num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs;
+	num_pipes = adev->gfx.config.gb_addr_config_fields.num_pipes;
+
+	if (!afb->tiling_flags || !AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) {
+		modifier = DRM_FORMAT_MOD_LINEAR;
+	} else {
+		int swizzle = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE);
+		bool has_xor = swizzle >= 16;
+		int block_size_bits;
+		int version;
+		int pipe_xor_bits = 0;
+		int bank_xor_bits = 0;
+		int packers = 0;
+		int rb = 0;
+		int pipes = ilog2(num_pipes);
+		uint32_t dcc_offset = AMDGPU_TILING_GET(afb->tiling_flags, DCC_OFFSET_256B);
+
+		switch (swizzle >> 2) {
+		case 0: /* 256B */
+			block_size_bits = 8;
+			break;
+		case 1: /* 4KiB */
+		case 5: /* 4KiB _X */
+			block_size_bits = 12;
+			break;
+		case 2: /* 64KiB */
+		case 4: /* 64 KiB _T */
+		case 6: /* 64 KiB _X */
+			block_size_bits = 16;
+			break;
+		case 7: /* 256 KiB */
+			block_size_bits = 18;
+			break;
+		default:
+			/* RESERVED or VAR */
+			return -EINVAL;
+		}
+
+		if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(11, 0, 0))
+			version = AMD_FMT_MOD_TILE_VER_GFX11;
+		else if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0))
+			version = AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS;
+		else if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 0, 0))
+			version = AMD_FMT_MOD_TILE_VER_GFX10;
+		else
+			version = AMD_FMT_MOD_TILE_VER_GFX9;
+
+		switch (swizzle & 3) {
+		case 0: /* Z microtiling */
+			return -EINVAL;
+		case 1: /* S microtiling */
+			if (adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0)) {
+				if (!has_xor)
+					version = AMD_FMT_MOD_TILE_VER_GFX9;
+			}
+			break;
+		case 2:
+			if (adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0)) {
+				if (!has_xor && afb->base.format->cpp[0] != 4)
+					version = AMD_FMT_MOD_TILE_VER_GFX9;
+			}
+			break;
+		case 3:
+			break;
+		}
+
+		if (has_xor) {
+			if (num_pipes == num_pkrs && num_pkrs == 0) {
+				DRM_ERROR("invalid number of pipes and packers\n");
+				return -EINVAL;
+			}
+
+			switch (version) {
+			case AMD_FMT_MOD_TILE_VER_GFX11:
+				pipe_xor_bits = min(block_size_bits - 8, pipes);
+				packers = ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs);
+				break;
+			case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS:
+				pipe_xor_bits = min(block_size_bits - 8, pipes);
+				packers = min(block_size_bits - 8 - pipe_xor_bits,
+					      ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs));
+				break;
+			case AMD_FMT_MOD_TILE_VER_GFX10:
+				pipe_xor_bits = min(block_size_bits - 8, pipes);
+				break;
+			case AMD_FMT_MOD_TILE_VER_GFX9:
+				rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) +
+				     ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se);
+				pipe_xor_bits = min(block_size_bits - 8, pipes +
+						    ilog2(adev->gfx.config.gb_addr_config_fields.num_se));
+				bank_xor_bits = min(block_size_bits - 8 - pipe_xor_bits,
+						    ilog2(adev->gfx.config.gb_addr_config_fields.num_banks));
+				break;
+			}
+		}
+
+		modifier = AMD_FMT_MOD |
+			   AMD_FMT_MOD_SET(TILE, AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) |
+			   AMD_FMT_MOD_SET(TILE_VERSION, version) |
+			   AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
+			   AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
+			   AMD_FMT_MOD_SET(PACKERS, packers);
+
+		if (dcc_offset != 0) {
+			bool dcc_i64b = AMDGPU_TILING_GET(afb->tiling_flags, DCC_INDEPENDENT_64B) != 0;
+			bool dcc_i128b = version >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS;
+			const struct drm_format_info *format_info;
+			u64 render_dcc_offset;
+
+			/* Enable constant encode on RAVEN2 and later. */
+			bool dcc_constant_encode = (adev->asic_type > CHIP_RAVEN ||
+						   (adev->asic_type == CHIP_RAVEN &&
+						    adev->external_rev_id >= 0x81)) &&
+						    adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0);
+
+			int max_cblock_size = dcc_i64b ? AMD_FMT_MOD_DCC_BLOCK_64B :
+					      dcc_i128b ? AMD_FMT_MOD_DCC_BLOCK_128B :
+					      AMD_FMT_MOD_DCC_BLOCK_256B;
+
+			modifier |= AMD_FMT_MOD_SET(DCC, 1) |
+				    AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, dcc_constant_encode) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, dcc_i64b) |
+				    AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, dcc_i128b) |
+				    AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_cblock_size);
+
+			afb->base.offsets[1] = dcc_offset * 256 + afb->base.offsets[0];
+			afb->base.pitches[1] =
+				AMDGPU_TILING_GET(afb->tiling_flags, DCC_PITCH_MAX) + 1;
+
+			/*
+			 * If the userspace driver uses retiling the tiling flags do not contain
+			 * info on the renderable DCC buffer. Luckily the opaque metadata contains
+			 * the info so we can try to extract it. The kernel does not use this info
+			 * but we should convert it to a modifier plane for getfb2, so the
+			 * userspace driver that gets it doesn't have to juggle around another DCC
+			 * plane internally.
+			 */
+			if (extract_render_dcc_offset(adev, afb->base.obj[0],
+						      &render_dcc_offset) == 0 &&
+			    render_dcc_offset != 0 &&
+			    render_dcc_offset != afb->base.offsets[1] &&
+			    render_dcc_offset < UINT_MAX) {
+				uint32_t dcc_block_bits;  /* of base surface data */
+
+				modifier |= AMD_FMT_MOD_SET(DCC_RETILE, 1);
+				afb->base.offsets[2] = render_dcc_offset;
+
+				if (adev->family >= AMDGPU_FAMILY_NV) {
+					int extra_pipe = 0;
+
+					if ((adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0)) &&
+					    pipes == packers && pipes > 1)
+						extra_pipe = 1;
+
+					dcc_block_bits = max(20, 16 + pipes + extra_pipe);
+				} else {
+					modifier |= AMD_FMT_MOD_SET(RB, rb) |
+						    AMD_FMT_MOD_SET(PIPE, pipes);
+					dcc_block_bits = max(20, 18 + rb);
+				}
+
+				dcc_block_bits -= ilog2(afb->base.format->cpp[0]);
+				afb->base.pitches[2] = ALIGN(afb->base.width,
+							     1u << ((dcc_block_bits + 1) / 2));
+			}
+			format_info = amdgpu_lookup_format_info(afb->base.format->format,
+								modifier);
+			if (!format_info)
+				return -EINVAL;
+
+			afb->base.format = format_info;
+		}
+	}
+
+	afb->base.modifier = modifier;
+	afb->base.flags |= DRM_MODE_FB_MODIFIERS;
+	return 0;
+}
+
+/* Mirrors the is_displayable check in radeonsi's gfx6_compute_surface */
+static int check_tiling_flags_gfx6(struct amdgpu_framebuffer *afb)
+{
+	u64 micro_tile_mode;
+
+	/* Zero swizzle mode means linear */
+	if (AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0)
+		return 0;
+
+	micro_tile_mode = AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE);
+	switch (micro_tile_mode) {
+	case 0: /* DISPLAY */
+	case 3: /* RENDER */
+		return 0;
+	default:
+		drm_dbg_kms(afb->base.dev,
+			    "Micro tile mode %llu not supported for scanout\n",
+			    micro_tile_mode);
+		return -EINVAL;
+	}
+}
+
+static void get_block_dimensions(unsigned int block_log2, unsigned int cpp,
+				 unsigned int *width, unsigned int *height)
+{
+	unsigned int cpp_log2 = ilog2(cpp);
+	unsigned int pixel_log2 = block_log2 - cpp_log2;
+	unsigned int width_log2 = (pixel_log2 + 1) / 2;
+	unsigned int height_log2 = pixel_log2 - width_log2;
+
+	*width = 1 << width_log2;
+	*height = 1 << height_log2;
+}
+
+static unsigned int get_dcc_block_size(uint64_t modifier, bool rb_aligned,
+				       bool pipe_aligned)
+{
+	unsigned int ver = AMD_FMT_MOD_GET(TILE_VERSION, modifier);
+
+	switch (ver) {
+	case AMD_FMT_MOD_TILE_VER_GFX9: {
+		/*
+		 * TODO: for pipe aligned we may need to check the alignment of the
+		 * total size of the surface, which may need to be bigger than the
+		 * natural alignment due to some HW workarounds
+		 */
+		return max(10 + (rb_aligned ? (int)AMD_FMT_MOD_GET(RB, modifier) : 0), 12);
+	}
+	case AMD_FMT_MOD_TILE_VER_GFX10:
+	case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS:
+	case AMD_FMT_MOD_TILE_VER_GFX11: {
+		int pipes_log2 = AMD_FMT_MOD_GET(PIPE_XOR_BITS, modifier);
+
+		if (ver >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS && pipes_log2 > 1 &&
+		    AMD_FMT_MOD_GET(PACKERS, modifier) == pipes_log2)
+			++pipes_log2;
+
+		return max(8 + (pipe_aligned ? pipes_log2 : 0), 12);
+	}
+	default:
+		return 0;
+	}
+}
+
+static int amdgpu_display_verify_plane(struct amdgpu_framebuffer *rfb, int plane,
+				       const struct drm_format_info *format,
+				       unsigned int block_width, unsigned int block_height,
+				       unsigned int block_size_log2)
+{
+	unsigned int width = rfb->base.width /
+		((plane && plane < format->num_planes) ? format->hsub : 1);
+	unsigned int height = rfb->base.height /
+		((plane && plane < format->num_planes) ? format->vsub : 1);
+	unsigned int cpp = plane < format->num_planes ? format->cpp[plane] : 1;
+	unsigned int block_pitch = block_width * cpp;
+	unsigned int min_pitch = ALIGN(width * cpp, block_pitch);
+	unsigned int block_size = 1 << block_size_log2;
+	uint64_t size;
+
+	if (rfb->base.pitches[plane] % block_pitch) {
+		drm_dbg_kms(rfb->base.dev,
+			    "pitch %d for plane %d is not a multiple of block pitch %d\n",
+			    rfb->base.pitches[plane], plane, block_pitch);
+		return -EINVAL;
+	}
+	if (rfb->base.pitches[plane] < min_pitch) {
+		drm_dbg_kms(rfb->base.dev,
+			    "pitch %d for plane %d is less than minimum pitch %d\n",
+			    rfb->base.pitches[plane], plane, min_pitch);
+		return -EINVAL;
+	}
+
+	/* Force at least natural alignment. */
+	if (rfb->base.offsets[plane] % block_size) {
+		drm_dbg_kms(rfb->base.dev,
+			    "offset 0x%x for plane %d is not a multiple of block pitch 0x%x\n",
+			    rfb->base.offsets[plane], plane, block_size);
+		return -EINVAL;
+	}
+
+	size = rfb->base.offsets[plane] +
+		(uint64_t)rfb->base.pitches[plane] / block_pitch *
+		block_size * DIV_ROUND_UP(height, block_height);
+
+	if (rfb->base.obj[0]->size < size) {
+		drm_dbg_kms(rfb->base.dev,
+			    "BO size 0x%zx is less than 0x%llx required for plane %d\n",
+			    rfb->base.obj[0]->size, size, plane);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+
+static int amdgpu_display_verify_sizes(struct amdgpu_framebuffer *rfb)
+{
+	const struct drm_format_info *format_info = drm_format_info(rfb->base.format->format);
+	uint64_t modifier = rfb->base.modifier;
+	int ret;
+	unsigned int i, block_width, block_height, block_size_log2;
+
+	if (rfb->base.dev->mode_config.fb_modifiers_not_supported)
+		return 0;
+
+	for (i = 0; i < format_info->num_planes; ++i) {
+		if (modifier == DRM_FORMAT_MOD_LINEAR) {
+			block_width = 256 / format_info->cpp[i];
+			block_height = 1;
+			block_size_log2 = 8;
+		} else {
+			int swizzle = AMD_FMT_MOD_GET(TILE, modifier);
+
+			switch ((swizzle & ~3) + 1) {
+			case DC_SW_256B_S:
+				block_size_log2 = 8;
+				break;
+			case DC_SW_4KB_S:
+			case DC_SW_4KB_S_X:
+				block_size_log2 = 12;
+				break;
+			case DC_SW_64KB_S:
+			case DC_SW_64KB_S_T:
+			case DC_SW_64KB_S_X:
+				block_size_log2 = 16;
+				break;
+			case DC_SW_VAR_S_X:
+				block_size_log2 = 18;
+				break;
+			default:
+				drm_dbg_kms(rfb->base.dev,
+					    "Swizzle mode with unknown block size: %d\n", swizzle);
+				return -EINVAL;
+			}
+
+			get_block_dimensions(block_size_log2, format_info->cpp[i],
+					     &block_width, &block_height);
+		}
+
+		ret = amdgpu_display_verify_plane(rfb, i, format_info,
+						  block_width, block_height, block_size_log2);
+		if (ret)
+			return ret;
+	}
+
+	if (AMD_FMT_MOD_GET(DCC, modifier)) {
+		if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) {
+			block_size_log2 = get_dcc_block_size(modifier, false, false);
+			get_block_dimensions(block_size_log2 + 8, format_info->cpp[0],
+					     &block_width, &block_height);
+			ret = amdgpu_display_verify_plane(rfb, i, format_info,
+							  block_width, block_height,
+							  block_size_log2);
+			if (ret)
+				return ret;
+
+			++i;
+			block_size_log2 = get_dcc_block_size(modifier, true, true);
+		} else {
+			bool pipe_aligned = AMD_FMT_MOD_GET(DCC_PIPE_ALIGN, modifier);
+
+			block_size_log2 = get_dcc_block_size(modifier, true, pipe_aligned);
+		}
+		get_block_dimensions(block_size_log2 + 8, format_info->cpp[0],
+				     &block_width, &block_height);
+		ret = amdgpu_display_verify_plane(rfb, i, format_info,
+						  block_width, block_height, block_size_log2);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb,
+				      uint64_t *tiling_flags, bool *tmz_surface)
+{
+	struct amdgpu_bo *rbo;
+	int r;
+
+	if (!amdgpu_fb) {
+		*tiling_flags = 0;
+		*tmz_surface = false;
+		return 0;
+	}
+
+	rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]);
+	r = amdgpu_bo_reserve(rbo, false);
+
+	if (unlikely(r)) {
+		/* Don't show error message when returning -ERESTARTSYS */
+		if (r != -ERESTARTSYS)
+			DRM_ERROR("Unable to reserve buffer: %d\n", r);
+		return r;
+	}
+
+	if (tiling_flags)
+		amdgpu_bo_get_tiling_flags(rbo, tiling_flags);
+
+	if (tmz_surface)
+		*tmz_surface = amdgpu_bo_encrypted(rbo);
+
+	amdgpu_bo_unreserve(rbo);
+
+	return r;
+}
+
+static int amdgpu_display_gem_fb_verify_and_init(struct drm_device *dev,
+						 struct amdgpu_framebuffer *rfb,
+						 struct drm_file *file_priv,
+						 const struct drm_mode_fb_cmd2 *mode_cmd,
+						 struct drm_gem_object *obj)
+{
+	int ret;
+
+	rfb->base.obj[0] = obj;
+	drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd);
+	/* Verify that the modifier is supported. */
+	if (!drm_any_plane_has_format(dev, mode_cmd->pixel_format,
+				      mode_cmd->modifier[0])) {
+		drm_dbg_kms(dev,
+			    "unsupported pixel format %p4cc / modifier 0x%llx\n",
+			    &mode_cmd->pixel_format, mode_cmd->modifier[0]);
+
+		ret = -EINVAL;
+		goto err;
+	}
+
+	ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj);
+	if (ret)
+		goto err;
+
+	if (drm_drv_uses_atomic_modeset(dev))
+		ret = drm_framebuffer_init(dev, &rfb->base,
+					   &amdgpu_fb_funcs_atomic);
+	else
+		ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs);
+
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	drm_dbg_kms(dev, "Failed to verify and init gem fb: %d\n", ret);
+	rfb->base.obj[0] = NULL;
+	return ret;
+}
+
+static int amdgpu_display_framebuffer_init(struct drm_device *dev,
+					   struct amdgpu_framebuffer *rfb,
+					   const struct drm_mode_fb_cmd2 *mode_cmd,
+					   struct drm_gem_object *obj)
+{
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	int ret, i;
+
+	/*
+	 * This needs to happen before modifier conversion as that might change
+	 * the number of planes.
+	 */
+	for (i = 1; i < rfb->base.format->num_planes; ++i) {
+		if (mode_cmd->handles[i] != mode_cmd->handles[0]) {
+			drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n",
+				    i, mode_cmd->handles[0], mode_cmd->handles[i]);
+			ret = -EINVAL;
+			return ret;
+		}
+	}
+
+	ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface);
+	if (ret)
+		return ret;
+
+	if (dev->mode_config.fb_modifiers_not_supported && !adev->enable_virtual_display) {
+		drm_WARN_ONCE(dev, adev->family >= AMDGPU_FAMILY_AI,
+			      "GFX9+ requires FB check based on format modifier\n");
+		ret = check_tiling_flags_gfx6(rfb);
+		if (ret)
+			return ret;
+	}
+
+	if (!dev->mode_config.fb_modifiers_not_supported &&
+	    !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) {
+		ret = convert_tiling_flags_to_modifier(rfb);
+		if (ret) {
+			drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier",
+				    rfb->tiling_flags);
+			return ret;
+		}
+	}
+
+	ret = amdgpu_display_verify_sizes(rfb);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < rfb->base.format->num_planes; ++i) {
+		drm_gem_object_get(rfb->base.obj[0]);
+		rfb->base.obj[i] = rfb->base.obj[0];
+	}
+
+	return 0;
+}
+
+struct drm_framebuffer *
+amdgpu_display_user_framebuffer_create(struct drm_device *dev,
+				       struct drm_file *file_priv,
+				       const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	struct amdgpu_framebuffer *amdgpu_fb;
+	struct drm_gem_object *obj;
+	struct amdgpu_bo *bo;
+	uint32_t domains;
+	int ret;
+
+	obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
+	if (obj ==  NULL) {
+		drm_dbg_kms(dev,
+			    "No GEM object associated to handle 0x%08X, can't create framebuffer\n",
+			    mode_cmd->handles[0]);
+
+		return ERR_PTR(-ENOENT);
+	}
+
+	/* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
+	bo = gem_to_amdgpu_bo(obj);
+	domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags);
+	if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) {
+		drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n");
+		drm_gem_object_put(obj);
+		return ERR_PTR(-EINVAL);
+	}
+
+	amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL);
+	if (amdgpu_fb == NULL) {
+		drm_gem_object_put(obj);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv,
+						    mode_cmd, obj);
+	if (ret) {
+		kfree(amdgpu_fb);
+		drm_gem_object_put(obj);
+		return ERR_PTR(ret);
+	}
+
+	drm_gem_object_put(obj);
+	return &amdgpu_fb->base;
+}
+
+const struct drm_mode_config_funcs amdgpu_mode_funcs = {
+	.fb_create = amdgpu_display_user_framebuffer_create,
+};
+
+static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] =
+{	{ UNDERSCAN_OFF, "off" },
+	{ UNDERSCAN_ON, "on" },
+	{ UNDERSCAN_AUTO, "auto" },
+};
+
+static const struct drm_prop_enum_list amdgpu_audio_enum_list[] =
+{	{ AMDGPU_AUDIO_DISABLE, "off" },
+	{ AMDGPU_AUDIO_ENABLE, "on" },
+	{ AMDGPU_AUDIO_AUTO, "auto" },
+};
+
+/* XXX support different dither options? spatial, temporal, both, etc. */
+static const struct drm_prop_enum_list amdgpu_dither_enum_list[] =
+{	{ AMDGPU_FMT_DITHER_DISABLE, "off" },
+	{ AMDGPU_FMT_DITHER_ENABLE, "on" },
+};
+
+int amdgpu_display_modeset_create_props(struct amdgpu_device *adev)
+{
+	int sz;
+
+	adev->mode_info.coherent_mode_property =
+		drm_property_create_range(adev_to_drm(adev), 0, "coherent", 0, 1);
+	if (!adev->mode_info.coherent_mode_property)
+		return -ENOMEM;
+
+	adev->mode_info.load_detect_property =
+		drm_property_create_range(adev_to_drm(adev), 0, "load detection", 0, 1);
+	if (!adev->mode_info.load_detect_property)
+		return -ENOMEM;
+
+	drm_mode_create_scaling_mode_property(adev_to_drm(adev));
+
+	sz = ARRAY_SIZE(amdgpu_underscan_enum_list);
+	adev->mode_info.underscan_property =
+		drm_property_create_enum(adev_to_drm(adev), 0,
+					 "underscan",
+					 amdgpu_underscan_enum_list, sz);
+
+	adev->mode_info.underscan_hborder_property =
+		drm_property_create_range(adev_to_drm(adev), 0,
+					  "underscan hborder", 0, 128);
+	if (!adev->mode_info.underscan_hborder_property)
+		return -ENOMEM;
+
+	adev->mode_info.underscan_vborder_property =
+		drm_property_create_range(adev_to_drm(adev), 0,
+					  "underscan vborder", 0, 128);
+	if (!adev->mode_info.underscan_vborder_property)
+		return -ENOMEM;
+
+	sz = ARRAY_SIZE(amdgpu_audio_enum_list);
+	adev->mode_info.audio_property =
+		drm_property_create_enum(adev_to_drm(adev), 0,
+					 "audio",
+					 amdgpu_audio_enum_list, sz);
+
+	sz = ARRAY_SIZE(amdgpu_dither_enum_list);
+	adev->mode_info.dither_property =
+		drm_property_create_enum(adev_to_drm(adev), 0,
+					 "dither",
+					 amdgpu_dither_enum_list, sz);
+
+	if (amdgpu_device_has_dc_support(adev)) {
+		adev->mode_info.abm_level_property =
+			drm_property_create_range(adev_to_drm(adev), 0,
+						  "abm level", 0, 4);
+		if (!adev->mode_info.abm_level_property)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void amdgpu_display_update_priority(struct amdgpu_device *adev)
+{
+	/* adjustment options for the display watermarks */
+	if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2))
+		adev->mode_info.disp_priority = 0;
+	else
+		adev->mode_info.disp_priority = amdgpu_disp_priority;
+
+}
+
+static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode)
+{
+	/* try and guess if this is a tv or a monitor */
+	if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */
+	    (mode->vdisplay == 576) || /* 576p */
+	    (mode->vdisplay == 720) || /* 720p */
+	    (mode->vdisplay == 1080)) /* 1080p */
+		return true;
+	else
+		return false;
+}
+
+bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
+					const struct drm_display_mode *mode,
+					struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_encoder *encoder;
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+	struct amdgpu_encoder *amdgpu_encoder;
+	struct drm_connector *connector;
+	u32 src_v = 1, dst_v = 1;
+	u32 src_h = 1, dst_h = 1;
+
+	amdgpu_crtc->h_border = 0;
+	amdgpu_crtc->v_border = 0;
+
+	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+		if (encoder->crtc != crtc)
+			continue;
+		amdgpu_encoder = to_amdgpu_encoder(encoder);
+		connector = amdgpu_get_connector_for_encoder(encoder);
+
+		/* set scaling */
+		if (amdgpu_encoder->rmx_type == RMX_OFF)
+			amdgpu_crtc->rmx_type = RMX_OFF;
+		else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay ||
+			 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay)
+			amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type;
+		else
+			amdgpu_crtc->rmx_type = RMX_OFF;
+		/* copy native mode */
+		memcpy(&amdgpu_crtc->native_mode,
+		       &amdgpu_encoder->native_mode,
+		       sizeof(struct drm_display_mode));
+		src_v = crtc->mode.vdisplay;
+		dst_v = amdgpu_crtc->native_mode.vdisplay;
+		src_h = crtc->mode.hdisplay;
+		dst_h = amdgpu_crtc->native_mode.hdisplay;
+
+		/* fix up for overscan on hdmi */
+		if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
+		    ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) ||
+		     ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) &&
+		      connector->display_info.is_hdmi &&
+		      amdgpu_display_is_hdtv_mode(mode)))) {
+			if (amdgpu_encoder->underscan_hborder != 0)
+				amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder;
+			else
+				amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16;
+			if (amdgpu_encoder->underscan_vborder != 0)
+				amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder;
+			else
+				amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16;
+			amdgpu_crtc->rmx_type = RMX_FULL;
+			src_v = crtc->mode.vdisplay;
+			dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2);
+			src_h = crtc->mode.hdisplay;
+			dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2);
+		}
+	}
+	if (amdgpu_crtc->rmx_type != RMX_OFF) {
+		fixed20_12 a, b;
+
+		a.full = dfixed_const(src_v);
+		b.full = dfixed_const(dst_v);
+		amdgpu_crtc->vsc.full = dfixed_div(a, b);
+		a.full = dfixed_const(src_h);
+		b.full = dfixed_const(dst_h);
+		amdgpu_crtc->hsc.full = dfixed_div(a, b);
+	} else {
+		amdgpu_crtc->vsc.full = dfixed_const(1);
+		amdgpu_crtc->hsc.full = dfixed_const(1);
+	}
+	return true;
+}
+
+/*
+ * Retrieve current video scanout position of crtc on a given gpu, and
+ * an optional accurate timestamp of when query happened.
+ *
+ * \param dev Device to query.
+ * \param pipe Crtc to query.
+ * \param flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
+ *              For driver internal use only also supports these flags:
+ *
+ *              USE_REAL_VBLANKSTART to use the real start of vblank instead
+ *              of a fudged earlier start of vblank.
+ *
+ *              GET_DISTANCE_TO_VBLANKSTART to return distance to the
+ *              fudged earlier start of vblank in *vpos and the distance
+ *              to true start of vblank in *hpos.
+ *
+ * \param *vpos Location where vertical scanout position should be stored.
+ * \param *hpos Location where horizontal scanout position should go.
+ * \param *stime Target location for timestamp taken immediately before
+ *               scanout position query. Can be NULL to skip timestamp.
+ * \param *etime Target location for timestamp taken immediately after
+ *               scanout position query. Can be NULL to skip timestamp.
+ *
+ * Returns vpos as a positive number while in active scanout area.
+ * Returns vpos as a negative number inside vblank, counting the number
+ * of scanlines to go until end of vblank, e.g., -1 means "one scanline
+ * until start of active scanout / end of vblank."
+ *
+ * \return Flags, or'ed together as follows:
+ *
+ * DRM_SCANOUTPOS_VALID = Query successful.
+ * DRM_SCANOUTPOS_INVBL = Inside vblank.
+ * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
+ * this flag means that returned position may be offset by a constant but
+ * unknown small number of scanlines wrt. real scanout position.
+ *
+ */
+int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev,
+			unsigned int pipe, unsigned int flags, int *vpos,
+			int *hpos, ktime_t *stime, ktime_t *etime,
+			const struct drm_display_mode *mode)
+{
+	u32 vbl = 0, position = 0;
+	int vbl_start, vbl_end, vtotal, ret = 0;
+	bool in_vbl = true;
+
+	struct amdgpu_device *adev = drm_to_adev(dev);
+
+	/* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */
+
+	/* Get optional system timestamp before query. */
+	if (stime)
+		*stime = ktime_get();
+
+	if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0)
+		ret |= DRM_SCANOUTPOS_VALID;
+
+	/* Get optional system timestamp after query. */
+	if (etime)
+		*etime = ktime_get();
+
+	/* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */
+
+	/* Decode into vertical and horizontal scanout position. */
+	*vpos = position & 0x1fff;
+	*hpos = (position >> 16) & 0x1fff;
+
+	/* Valid vblank area boundaries from gpu retrieved? */
+	if (vbl > 0) {
+		/* Yes: Decode. */
+		ret |= DRM_SCANOUTPOS_ACCURATE;
+		vbl_start = vbl & 0x1fff;
+		vbl_end = (vbl >> 16) & 0x1fff;
+	}
+	else {
+		/* No: Fake something reasonable which gives at least ok results. */
+		vbl_start = mode->crtc_vdisplay;
+		vbl_end = 0;
+	}
+
+	/* Called from driver internal vblank counter query code? */
+	if (flags & GET_DISTANCE_TO_VBLANKSTART) {
+		/* Caller wants distance from real vbl_start in *hpos */
+		*hpos = *vpos - vbl_start;
+	}
+
+	/* Fudge vblank to start a few scanlines earlier to handle the
+	 * problem that vblank irqs fire a few scanlines before start
+	 * of vblank. Some driver internal callers need the true vblank
+	 * start to be used and signal this via the USE_REAL_VBLANKSTART flag.
+	 *
+	 * The cause of the "early" vblank irq is that the irq is triggered
+	 * by the line buffer logic when the line buffer read position enters
+	 * the vblank, whereas our crtc scanout position naturally lags the
+	 * line buffer read position.
+	 */
+	if (!(flags & USE_REAL_VBLANKSTART))
+		vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines;
+
+	/* Test scanout position against vblank region. */
+	if ((*vpos < vbl_start) && (*vpos >= vbl_end))
+		in_vbl = false;
+
+	/* In vblank? */
+	if (in_vbl)
+		ret |= DRM_SCANOUTPOS_IN_VBLANK;
+
+	/* Called from driver internal vblank counter query code? */
+	if (flags & GET_DISTANCE_TO_VBLANKSTART) {
+		/* Caller wants distance from fudged earlier vbl_start */
+		*vpos -= vbl_start;
+		return ret;
+	}
+
+	/* Check if inside vblank area and apply corrective offsets:
+	 * vpos will then be >=0 in video scanout area, but negative
+	 * within vblank area, counting down the number of lines until
+	 * start of scanout.
+	 */
+
+	/* Inside "upper part" of vblank area? Apply corrective offset if so: */
+	if (in_vbl && (*vpos >= vbl_start)) {
+		vtotal = mode->crtc_vtotal;
+
+		/* With variable refresh rate displays the vpos can exceed
+		 * the vtotal value. Clamp to 0 to return -vbl_end instead
+		 * of guessing the remaining number of lines until scanout.
+		 */
+		*vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0;
+	}
+
+	/* Correct for shifted end of vbl at vbl_end. */
+	*vpos = *vpos - vbl_end;
+
+	return ret;
+}
+
+int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc)
+{
+	if (crtc < 0 || crtc >= adev->mode_info.num_crtc)
+		return AMDGPU_CRTC_IRQ_NONE;
+
+	switch (crtc) {
+	case 0:
+		return AMDGPU_CRTC_IRQ_VBLANK1;
+	case 1:
+		return AMDGPU_CRTC_IRQ_VBLANK2;
+	case 2:
+		return AMDGPU_CRTC_IRQ_VBLANK3;
+	case 3:
+		return AMDGPU_CRTC_IRQ_VBLANK4;
+	case 4:
+		return AMDGPU_CRTC_IRQ_VBLANK5;
+	case 5:
+		return AMDGPU_CRTC_IRQ_VBLANK6;
+	default:
+		return AMDGPU_CRTC_IRQ_NONE;
+	}
+}
+
+bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc,
+			bool in_vblank_irq, int *vpos,
+			int *hpos, ktime_t *stime, ktime_t *etime,
+			const struct drm_display_mode *mode)
+{
+	struct drm_device *dev = crtc->dev;
+	unsigned int pipe = crtc->index;
+
+	return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos,
+						  stime, etime, mode);
+}
+
+static bool
+amdgpu_display_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_fb_helper *fb_helper = dev->fb_helper;
+
+	if (!fb_helper || !fb_helper->buffer)
+		return false;
+
+	if (gem_to_amdgpu_bo(fb_helper->buffer->gem) != robj)
+		return false;
+
+	return true;
+}
+
+int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	int r;
+
+	/* turn off display hw */
+	drm_modeset_lock_all(dev);
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter)
+		drm_helper_connector_dpms(connector,
+					  DRM_MODE_DPMS_OFF);
+	drm_connector_list_iter_end(&iter);
+	drm_modeset_unlock_all(dev);
+	/* unpin the front buffers and cursors */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+		struct drm_framebuffer *fb = crtc->primary->fb;
+		struct amdgpu_bo *robj;
+
+		if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
+			struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
+
+			r = amdgpu_bo_reserve(aobj, true);
+			if (r == 0) {
+				amdgpu_bo_unpin(aobj);
+				amdgpu_bo_unreserve(aobj);
+			}
+		}
+
+		if (!fb || !fb->obj[0])
+			continue;
+
+		robj = gem_to_amdgpu_bo(fb->obj[0]);
+		if (!amdgpu_display_robj_is_fb(adev, robj)) {
+			r = amdgpu_bo_reserve(robj, true);
+			if (r == 0) {
+				amdgpu_bo_unpin(robj);
+				amdgpu_bo_unreserve(robj);
+			}
+		}
+	}
+	return 0;
+}
+
+int amdgpu_display_resume_helper(struct amdgpu_device *adev)
+{
+	struct drm_device *dev = adev_to_drm(adev);
+	struct drm_connector *connector;
+	struct drm_connector_list_iter iter;
+	struct drm_crtc *crtc;
+	int r;
+
+	/* pin cursors */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+
+		if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
+			struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
+
+			r = amdgpu_bo_reserve(aobj, true);
+			if (r == 0) {
+				r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM);
+				if (r != 0)
+					dev_err(adev->dev, "Failed to pin cursor BO (%d)\n", r);
+				amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj);
+				amdgpu_bo_unreserve(aobj);
+			}
+		}
+	}
+
+	drm_helper_resume_force_mode(dev);
+
+	/* turn on display hw */
+	drm_modeset_lock_all(dev);
+
+	drm_connector_list_iter_begin(dev, &iter);
+	drm_for_each_connector_iter(connector, &iter)
+		drm_helper_connector_dpms(connector,
+					  DRM_MODE_DPMS_ON);
+	drm_connector_list_iter_end(&iter);
+
+	drm_modeset_unlock_all(dev);
+
+	return 0;
+}
+