Adding upstream version 5.10.209.upstream/5.10.209

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

1 files changed, 2055 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
new file mode 100644
index 000000000..469352e2d
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -0,0 +1,2055 @@
+/*
+ * 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_atombios.h"
+#include "amdgpu_atomfirmware.h"
+#include "amdgpu_i2c.h"
+#include "amdgpu_display.h"
+
+#include "atom.h"
+#include "atom-bits.h"
+#include "atombios_encoders.h"
+#include "bif/bif_4_1_d.h"
+
+static void amdgpu_atombios_lookup_i2c_gpio_quirks(struct amdgpu_device *adev,
+					  ATOM_GPIO_I2C_ASSIGMENT *gpio,
+					  u8 index)
+{
+
+}
+
+static struct amdgpu_i2c_bus_rec amdgpu_atombios_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio)
+{
+	struct amdgpu_i2c_bus_rec i2c;
+
+	memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
+
+	i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex);
+	i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex);
+	i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex);
+	i2c.en_data_reg = le16_to_cpu(gpio->usDataEnRegisterIndex);
+	i2c.y_clk_reg = le16_to_cpu(gpio->usClkY_RegisterIndex);
+	i2c.y_data_reg = le16_to_cpu(gpio->usDataY_RegisterIndex);
+	i2c.a_clk_reg = le16_to_cpu(gpio->usClkA_RegisterIndex);
+	i2c.a_data_reg = le16_to_cpu(gpio->usDataA_RegisterIndex);
+	i2c.mask_clk_mask = (1 << gpio->ucClkMaskShift);
+	i2c.mask_data_mask = (1 << gpio->ucDataMaskShift);
+	i2c.en_clk_mask = (1 << gpio->ucClkEnShift);
+	i2c.en_data_mask = (1 << gpio->ucDataEnShift);
+	i2c.y_clk_mask = (1 << gpio->ucClkY_Shift);
+	i2c.y_data_mask = (1 << gpio->ucDataY_Shift);
+	i2c.a_clk_mask = (1 << gpio->ucClkA_Shift);
+	i2c.a_data_mask = (1 << gpio->ucDataA_Shift);
+
+	if (gpio->sucI2cId.sbfAccess.bfHW_Capable)
+		i2c.hw_capable = true;
+	else
+		i2c.hw_capable = false;
+
+	if (gpio->sucI2cId.ucAccess == 0xa0)
+		i2c.mm_i2c = true;
+	else
+		i2c.mm_i2c = false;
+
+	i2c.i2c_id = gpio->sucI2cId.ucAccess;
+
+	if (i2c.mask_clk_reg)
+		i2c.valid = true;
+	else
+		i2c.valid = false;
+
+	return i2c;
+}
+
+struct amdgpu_i2c_bus_rec amdgpu_atombios_lookup_i2c_gpio(struct amdgpu_device *adev,
+							  uint8_t id)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	ATOM_GPIO_I2C_ASSIGMENT *gpio;
+	struct amdgpu_i2c_bus_rec i2c;
+	int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
+	struct _ATOM_GPIO_I2C_INFO *i2c_info;
+	uint16_t data_offset, size;
+	int i, num_indices;
+
+	memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
+	i2c.valid = false;
+
+	if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
+		i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
+
+		num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+			sizeof(ATOM_GPIO_I2C_ASSIGMENT);
+
+		gpio = &i2c_info->asGPIO_Info[0];
+		for (i = 0; i < num_indices; i++) {
+
+			amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
+
+			if (gpio->sucI2cId.ucAccess == id) {
+				i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
+				break;
+			}
+			gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
+				((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
+		}
+	}
+
+	return i2c;
+}
+
+void amdgpu_atombios_i2c_init(struct amdgpu_device *adev)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	ATOM_GPIO_I2C_ASSIGMENT *gpio;
+	struct amdgpu_i2c_bus_rec i2c;
+	int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
+	struct _ATOM_GPIO_I2C_INFO *i2c_info;
+	uint16_t data_offset, size;
+	int i, num_indices;
+	char stmp[32];
+
+	if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
+		i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
+
+		num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+			sizeof(ATOM_GPIO_I2C_ASSIGMENT);
+
+		gpio = &i2c_info->asGPIO_Info[0];
+		for (i = 0; i < num_indices; i++) {
+			amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
+
+			i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
+
+			if (i2c.valid) {
+				sprintf(stmp, "0x%x", i2c.i2c_id);
+				adev->i2c_bus[i] = amdgpu_i2c_create(adev_to_drm(adev), &i2c, stmp);
+			}
+			gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
+				((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
+		}
+	}
+}
+
+struct amdgpu_gpio_rec
+amdgpu_atombios_lookup_gpio(struct amdgpu_device *adev,
+			    u8 id)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	struct amdgpu_gpio_rec gpio;
+	int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
+	struct _ATOM_GPIO_PIN_LUT *gpio_info;
+	ATOM_GPIO_PIN_ASSIGNMENT *pin;
+	u16 data_offset, size;
+	int i, num_indices;
+
+	memset(&gpio, 0, sizeof(struct amdgpu_gpio_rec));
+	gpio.valid = false;
+
+	if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
+		gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);
+
+		num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+			sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
+
+		pin = gpio_info->asGPIO_Pin;
+		for (i = 0; i < num_indices; i++) {
+			if (id == pin->ucGPIO_ID) {
+				gpio.id = pin->ucGPIO_ID;
+				gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex);
+				gpio.shift = pin->ucGpioPinBitShift;
+				gpio.mask = (1 << pin->ucGpioPinBitShift);
+				gpio.valid = true;
+				break;
+			}
+			pin = (ATOM_GPIO_PIN_ASSIGNMENT *)
+				((u8 *)pin + sizeof(ATOM_GPIO_PIN_ASSIGNMENT));
+		}
+	}
+
+	return gpio;
+}
+
+static struct amdgpu_hpd
+amdgpu_atombios_get_hpd_info_from_gpio(struct amdgpu_device *adev,
+				       struct amdgpu_gpio_rec *gpio)
+{
+	struct amdgpu_hpd hpd;
+	u32 reg;
+
+	memset(&hpd, 0, sizeof(struct amdgpu_hpd));
+
+	reg = amdgpu_display_hpd_get_gpio_reg(adev);
+
+	hpd.gpio = *gpio;
+	if (gpio->reg == reg) {
+		switch(gpio->mask) {
+		case (1 << 0):
+			hpd.hpd = AMDGPU_HPD_1;
+			break;
+		case (1 << 8):
+			hpd.hpd = AMDGPU_HPD_2;
+			break;
+		case (1 << 16):
+			hpd.hpd = AMDGPU_HPD_3;
+			break;
+		case (1 << 24):
+			hpd.hpd = AMDGPU_HPD_4;
+			break;
+		case (1 << 26):
+			hpd.hpd = AMDGPU_HPD_5;
+			break;
+		case (1 << 28):
+			hpd.hpd = AMDGPU_HPD_6;
+			break;
+		default:
+			hpd.hpd = AMDGPU_HPD_NONE;
+			break;
+		}
+	} else
+		hpd.hpd = AMDGPU_HPD_NONE;
+	return hpd;
+}
+
+static const int object_connector_convert[] = {
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_DVII,
+	DRM_MODE_CONNECTOR_DVII,
+	DRM_MODE_CONNECTOR_DVID,
+	DRM_MODE_CONNECTOR_DVID,
+	DRM_MODE_CONNECTOR_VGA,
+	DRM_MODE_CONNECTOR_Composite,
+	DRM_MODE_CONNECTOR_SVIDEO,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_9PinDIN,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_HDMIA,
+	DRM_MODE_CONNECTOR_HDMIB,
+	DRM_MODE_CONNECTOR_LVDS,
+	DRM_MODE_CONNECTOR_9PinDIN,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_DisplayPort,
+	DRM_MODE_CONNECTOR_eDP,
+	DRM_MODE_CONNECTOR_Unknown
+};
+
+bool amdgpu_atombios_has_dce_engine_info(struct amdgpu_device *adev)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	struct atom_context *ctx = mode_info->atom_context;
+	int index = GetIndexIntoMasterTable(DATA, Object_Header);
+	u16 size, data_offset;
+	u8 frev, crev;
+	ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
+	ATOM_OBJECT_HEADER *obj_header;
+
+	if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
+		return false;
+
+	if (crev < 2)
+		return false;
+
+	obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
+	path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
+	    (ctx->bios + data_offset +
+	     le16_to_cpu(obj_header->usDisplayPathTableOffset));
+
+	if (path_obj->ucNumOfDispPath)
+		return true;
+	else
+		return false;
+}
+
+bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *adev)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	struct atom_context *ctx = mode_info->atom_context;
+	int index = GetIndexIntoMasterTable(DATA, Object_Header);
+	u16 size, data_offset;
+	u8 frev, crev;
+	ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
+	ATOM_ENCODER_OBJECT_TABLE *enc_obj;
+	ATOM_OBJECT_TABLE *router_obj;
+	ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
+	ATOM_OBJECT_HEADER *obj_header;
+	int i, j, k, path_size, device_support;
+	int connector_type;
+	u16 conn_id, connector_object_id;
+	struct amdgpu_i2c_bus_rec ddc_bus;
+	struct amdgpu_router router;
+	struct amdgpu_gpio_rec gpio;
+	struct amdgpu_hpd hpd;
+
+	if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
+		return false;
+
+	if (crev < 2)
+		return false;
+
+	obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
+	path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
+	    (ctx->bios + data_offset +
+	     le16_to_cpu(obj_header->usDisplayPathTableOffset));
+	con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
+	    (ctx->bios + data_offset +
+	     le16_to_cpu(obj_header->usConnectorObjectTableOffset));
+	enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
+	    (ctx->bios + data_offset +
+	     le16_to_cpu(obj_header->usEncoderObjectTableOffset));
+	router_obj = (ATOM_OBJECT_TABLE *)
+		(ctx->bios + data_offset +
+		 le16_to_cpu(obj_header->usRouterObjectTableOffset));
+	device_support = le16_to_cpu(obj_header->usDeviceSupport);
+
+	path_size = 0;
+	for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
+		uint8_t *addr = (uint8_t *) path_obj->asDispPath;
+		ATOM_DISPLAY_OBJECT_PATH *path;
+		addr += path_size;
+		path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
+		path_size += le16_to_cpu(path->usSize);
+
+		if (device_support & le16_to_cpu(path->usDeviceTag)) {
+			uint8_t con_obj_id =
+			    (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
+			    >> OBJECT_ID_SHIFT;
+
+			/* Skip TV/CV support */
+			if ((le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_TV1_SUPPORT) ||
+			    (le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_CV_SUPPORT))
+				continue;
+
+			if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
+				DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
+					  con_obj_id, le16_to_cpu(path->usDeviceTag));
+				continue;
+			}
+
+			connector_type =
+				object_connector_convert[con_obj_id];
+			connector_object_id = con_obj_id;
+
+			if (connector_type == DRM_MODE_CONNECTOR_Unknown)
+				continue;
+
+			router.ddc_valid = false;
+			router.cd_valid = false;
+			for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
+				uint8_t grph_obj_type =
+				    (le16_to_cpu(path->usGraphicObjIds[j]) &
+				     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
+
+				if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
+					for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
+						u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
+						if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
+							ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
+								(ctx->bios + data_offset +
+								 le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
+							ATOM_ENCODER_CAP_RECORD *cap_record;
+							u16 caps = 0;
+
+							while (record->ucRecordSize > 0 &&
+							       record->ucRecordType > 0 &&
+							       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
+								switch (record->ucRecordType) {
+								case ATOM_ENCODER_CAP_RECORD_TYPE:
+									cap_record =(ATOM_ENCODER_CAP_RECORD *)
+										record;
+									caps = le16_to_cpu(cap_record->usEncoderCap);
+									break;
+								}
+								record = (ATOM_COMMON_RECORD_HEADER *)
+									((char *)record + record->ucRecordSize);
+							}
+							amdgpu_display_add_encoder(adev, encoder_obj,
+										    le16_to_cpu(path->usDeviceTag),
+										    caps);
+						}
+					}
+				} else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
+					for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
+						u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
+						if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
+							ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
+								(ctx->bios + data_offset +
+								 le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
+							ATOM_I2C_RECORD *i2c_record;
+							ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
+							ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
+							ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
+							ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
+								(ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
+								(ctx->bios + data_offset +
+								 le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
+							u8 *num_dst_objs = (u8 *)
+								((u8 *)router_src_dst_table + 1 +
+								 (router_src_dst_table->ucNumberOfSrc * 2));
+							u16 *dst_objs = (u16 *)(num_dst_objs + 1);
+							int enum_id;
+
+							router.router_id = router_obj_id;
+							for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
+								if (le16_to_cpu(path->usConnObjectId) ==
+								    le16_to_cpu(dst_objs[enum_id]))
+									break;
+							}
+
+							while (record->ucRecordSize > 0 &&
+							       record->ucRecordType > 0 &&
+							       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
+								switch (record->ucRecordType) {
+								case ATOM_I2C_RECORD_TYPE:
+									i2c_record =
+										(ATOM_I2C_RECORD *)
+										record;
+									i2c_config =
+										(ATOM_I2C_ID_CONFIG_ACCESS *)
+										&i2c_record->sucI2cId;
+									router.i2c_info =
+										amdgpu_atombios_lookup_i2c_gpio(adev,
+												       i2c_config->
+												       ucAccess);
+									router.i2c_addr = i2c_record->ucI2CAddr >> 1;
+									break;
+								case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
+									ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
+										record;
+									router.ddc_valid = true;
+									router.ddc_mux_type = ddc_path->ucMuxType;
+									router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
+									router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
+									break;
+								case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
+									cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
+										record;
+									router.cd_valid = true;
+									router.cd_mux_type = cd_path->ucMuxType;
+									router.cd_mux_control_pin = cd_path->ucMuxControlPin;
+									router.cd_mux_state = cd_path->ucMuxState[enum_id];
+									break;
+								}
+								record = (ATOM_COMMON_RECORD_HEADER *)
+									((char *)record + record->ucRecordSize);
+							}
+						}
+					}
+				}
+			}
+
+			/* look up gpio for ddc, hpd */
+			ddc_bus.valid = false;
+			hpd.hpd = AMDGPU_HPD_NONE;
+			if ((le16_to_cpu(path->usDeviceTag) &
+			     (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
+				for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
+					if (le16_to_cpu(path->usConnObjectId) ==
+					    le16_to_cpu(con_obj->asObjects[j].
+							usObjectID)) {
+						ATOM_COMMON_RECORD_HEADER
+						    *record =
+						    (ATOM_COMMON_RECORD_HEADER
+						     *)
+						    (ctx->bios + data_offset +
+						     le16_to_cpu(con_obj->
+								 asObjects[j].
+								 usRecordOffset));
+						ATOM_I2C_RECORD *i2c_record;
+						ATOM_HPD_INT_RECORD *hpd_record;
+						ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
+
+						while (record->ucRecordSize > 0 &&
+						       record->ucRecordType > 0 &&
+						       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
+							switch (record->ucRecordType) {
+							case ATOM_I2C_RECORD_TYPE:
+								i2c_record =
+								    (ATOM_I2C_RECORD *)
+									record;
+								i2c_config =
+									(ATOM_I2C_ID_CONFIG_ACCESS *)
+									&i2c_record->sucI2cId;
+								ddc_bus = amdgpu_atombios_lookup_i2c_gpio(adev,
+												 i2c_config->
+												 ucAccess);
+								break;
+							case ATOM_HPD_INT_RECORD_TYPE:
+								hpd_record =
+									(ATOM_HPD_INT_RECORD *)
+									record;
+								gpio = amdgpu_atombios_lookup_gpio(adev,
+											  hpd_record->ucHPDIntGPIOID);
+								hpd = amdgpu_atombios_get_hpd_info_from_gpio(adev, &gpio);
+								hpd.plugged_state = hpd_record->ucPlugged_PinState;
+								break;
+							}
+							record =
+							    (ATOM_COMMON_RECORD_HEADER
+							     *) ((char *)record
+								 +
+								 record->
+								 ucRecordSize);
+						}
+						break;
+					}
+				}
+			}
+
+			/* needed for aux chan transactions */
+			ddc_bus.hpd = hpd.hpd;
+
+			conn_id = le16_to_cpu(path->usConnObjectId);
+
+			amdgpu_display_add_connector(adev,
+						      conn_id,
+						      le16_to_cpu(path->usDeviceTag),
+						      connector_type, &ddc_bus,
+						      connector_object_id,
+						      &hpd,
+						      &router);
+
+		}
+	}
+
+	amdgpu_link_encoder_connector(adev_to_drm(adev));
+
+	return true;
+}
+
+union firmware_info {
+	ATOM_FIRMWARE_INFO info;
+	ATOM_FIRMWARE_INFO_V1_2 info_12;
+	ATOM_FIRMWARE_INFO_V1_3 info_13;
+	ATOM_FIRMWARE_INFO_V1_4 info_14;
+	ATOM_FIRMWARE_INFO_V2_1 info_21;
+	ATOM_FIRMWARE_INFO_V2_2 info_22;
+};
+
+int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
+	uint8_t frev, crev;
+	uint16_t data_offset;
+	int ret = -EINVAL;
+
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+				   &frev, &crev, &data_offset)) {
+		int i;
+		struct amdgpu_pll *ppll = &adev->clock.ppll[0];
+		struct amdgpu_pll *spll = &adev->clock.spll;
+		struct amdgpu_pll *mpll = &adev->clock.mpll;
+		union firmware_info *firmware_info =
+			(union firmware_info *)(mode_info->atom_context->bios +
+						data_offset);
+		/* pixel clocks */
+		ppll->reference_freq =
+		    le16_to_cpu(firmware_info->info.usReferenceClock);
+		ppll->reference_div = 0;
+
+		ppll->pll_out_min =
+			le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
+		ppll->pll_out_max =
+		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
+
+		ppll->lcd_pll_out_min =
+			le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
+		if (ppll->lcd_pll_out_min == 0)
+			ppll->lcd_pll_out_min = ppll->pll_out_min;
+		ppll->lcd_pll_out_max =
+			le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
+		if (ppll->lcd_pll_out_max == 0)
+			ppll->lcd_pll_out_max = ppll->pll_out_max;
+
+		if (ppll->pll_out_min == 0)
+			ppll->pll_out_min = 64800;
+
+		ppll->pll_in_min =
+		    le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
+		ppll->pll_in_max =
+		    le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);
+
+		ppll->min_post_div = 2;
+		ppll->max_post_div = 0x7f;
+		ppll->min_frac_feedback_div = 0;
+		ppll->max_frac_feedback_div = 9;
+		ppll->min_ref_div = 2;
+		ppll->max_ref_div = 0x3ff;
+		ppll->min_feedback_div = 4;
+		ppll->max_feedback_div = 0xfff;
+		ppll->best_vco = 0;
+
+		for (i = 1; i < AMDGPU_MAX_PPLL; i++)
+			adev->clock.ppll[i] = *ppll;
+
+		/* system clock */
+		spll->reference_freq =
+			le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
+		spll->reference_div = 0;
+
+		spll->pll_out_min =
+		    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
+		spll->pll_out_max =
+		    le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);
+
+		/* ??? */
+		if (spll->pll_out_min == 0)
+			spll->pll_out_min = 64800;
+
+		spll->pll_in_min =
+		    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
+		spll->pll_in_max =
+		    le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
+
+		spll->min_post_div = 1;
+		spll->max_post_div = 1;
+		spll->min_ref_div = 2;
+		spll->max_ref_div = 0xff;
+		spll->min_feedback_div = 4;
+		spll->max_feedback_div = 0xff;
+		spll->best_vco = 0;
+
+		/* memory clock */
+		mpll->reference_freq =
+			le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
+		mpll->reference_div = 0;
+
+		mpll->pll_out_min =
+		    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
+		mpll->pll_out_max =
+		    le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);
+
+		/* ??? */
+		if (mpll->pll_out_min == 0)
+			mpll->pll_out_min = 64800;
+
+		mpll->pll_in_min =
+		    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
+		mpll->pll_in_max =
+		    le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);
+
+		adev->clock.default_sclk =
+		    le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
+		adev->clock.default_mclk =
+		    le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);
+
+		mpll->min_post_div = 1;
+		mpll->max_post_div = 1;
+		mpll->min_ref_div = 2;
+		mpll->max_ref_div = 0xff;
+		mpll->min_feedback_div = 4;
+		mpll->max_feedback_div = 0xff;
+		mpll->best_vco = 0;
+
+		/* disp clock */
+		adev->clock.default_dispclk =
+			le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
+		/* set a reasonable default for DP */
+		if (adev->clock.default_dispclk < 53900) {
+			DRM_DEBUG("Changing default dispclk from %dMhz to 600Mhz\n",
+				  adev->clock.default_dispclk / 100);
+			adev->clock.default_dispclk = 60000;
+		} else if (adev->clock.default_dispclk <= 60000) {
+			DRM_DEBUG("Changing default dispclk from %dMhz to 625Mhz\n",
+				  adev->clock.default_dispclk / 100);
+			adev->clock.default_dispclk = 62500;
+		}
+		adev->clock.dp_extclk =
+			le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
+		adev->clock.current_dispclk = adev->clock.default_dispclk;
+
+		adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
+		if (adev->clock.max_pixel_clock == 0)
+			adev->clock.max_pixel_clock = 40000;
+
+		/* not technically a clock, but... */
+		adev->mode_info.firmware_flags =
+			le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
+
+		ret = 0;
+	}
+
+	adev->pm.current_sclk = adev->clock.default_sclk;
+	adev->pm.current_mclk = adev->clock.default_mclk;
+
+	return ret;
+}
+
+union gfx_info {
+	ATOM_GFX_INFO_V2_1 info;
+};
+
+int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, GFX_Info);
+	uint8_t frev, crev;
+	uint16_t data_offset;
+	int ret = -EINVAL;
+
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+				   &frev, &crev, &data_offset)) {
+		union gfx_info *gfx_info = (union gfx_info *)
+			(mode_info->atom_context->bios + data_offset);
+
+		adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
+		adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
+		adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
+		adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
+		adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
+		adev->gfx.config.max_texture_channel_caches =
+			gfx_info->info.max_texture_channel_caches;
+
+		ret = 0;
+	}
+	return ret;
+}
+
+union igp_info {
+	struct _ATOM_INTEGRATED_SYSTEM_INFO info;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
+};
+
+/*
+ * Return vram width from integrated system info table, if available,
+ * or 0 if not.
+ */
+int amdgpu_atombios_get_vram_width(struct amdgpu_device *adev)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+	u16 data_offset, size;
+	union igp_info *igp_info;
+	u8 frev, crev;
+
+	/* get any igp specific overrides */
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		igp_info = (union igp_info *)
+			(mode_info->atom_context->bios + data_offset);
+		switch (crev) {
+		case 8:
+		case 9:
+			return igp_info->info_8.ucUMAChannelNumber * 64;
+		default:
+			return 0;
+		}
+	}
+
+	return 0;
+}
+
+static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
+						 struct amdgpu_atom_ss *ss,
+						 int id)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+	u16 data_offset, size;
+	union igp_info *igp_info;
+	u8 frev, crev;
+	u16 percentage = 0, rate = 0;
+
+	/* get any igp specific overrides */
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		igp_info = (union igp_info *)
+			(mode_info->atom_context->bios + data_offset);
+		switch (crev) {
+		case 6:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
+			break;
+		case 7:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
+			break;
+		case 8:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
+			break;
+		case 9:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
+			break;
+		default:
+			DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
+			break;
+		}
+		if (percentage)
+			ss->percentage = percentage;
+		if (rate)
+			ss->rate = rate;
+	}
+}
+
+union asic_ss_info {
+	struct _ATOM_ASIC_INTERNAL_SS_INFO info;
+	struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
+	struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
+};
+
+union asic_ss_assignment {
+	struct _ATOM_ASIC_SS_ASSIGNMENT v1;
+	struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
+	struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
+};
+
+bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
+				      struct amdgpu_atom_ss *ss,
+				      int id, u32 clock)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
+	uint16_t data_offset, size;
+	union asic_ss_info *ss_info;
+	union asic_ss_assignment *ss_assign;
+	uint8_t frev, crev;
+	int i, num_indices;
+
+	if (id == ASIC_INTERNAL_MEMORY_SS) {
+		if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
+			return false;
+	}
+	if (id == ASIC_INTERNAL_ENGINE_SS) {
+		if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
+			return false;
+	}
+
+	memset(ss, 0, sizeof(struct amdgpu_atom_ss));
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+
+		ss_info =
+			(union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
+
+		switch (frev) {
+		case 1:
+			num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+				sizeof(ATOM_ASIC_SS_ASSIGNMENT);
+
+			ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
+			for (i = 0; i < num_indices; i++) {
+				if ((ss_assign->v1.ucClockIndication == id) &&
+				    (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
+					ss->percentage =
+						le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
+					ss->type = ss_assign->v1.ucSpreadSpectrumMode;
+					ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
+					ss->percentage_divider = 100;
+					return true;
+				}
+				ss_assign = (union asic_ss_assignment *)
+					((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
+			}
+			break;
+		case 2:
+			num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+				sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
+			ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
+			for (i = 0; i < num_indices; i++) {
+				if ((ss_assign->v2.ucClockIndication == id) &&
+				    (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
+					ss->percentage =
+						le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
+					ss->type = ss_assign->v2.ucSpreadSpectrumMode;
+					ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
+					ss->percentage_divider = 100;
+					if ((crev == 2) &&
+					    ((id == ASIC_INTERNAL_ENGINE_SS) ||
+					     (id == ASIC_INTERNAL_MEMORY_SS)))
+						ss->rate /= 100;
+					return true;
+				}
+				ss_assign = (union asic_ss_assignment *)
+					((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
+			}
+			break;
+		case 3:
+			num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
+				sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
+			ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
+			for (i = 0; i < num_indices; i++) {
+				if ((ss_assign->v3.ucClockIndication == id) &&
+				    (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
+					ss->percentage =
+						le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
+					ss->type = ss_assign->v3.ucSpreadSpectrumMode;
+					ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
+					if (ss_assign->v3.ucSpreadSpectrumMode &
+					    SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
+						ss->percentage_divider = 1000;
+					else
+						ss->percentage_divider = 100;
+					if ((id == ASIC_INTERNAL_ENGINE_SS) ||
+					    (id == ASIC_INTERNAL_MEMORY_SS))
+						ss->rate /= 100;
+					if (adev->flags & AMD_IS_APU)
+						amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
+					return true;
+				}
+				ss_assign = (union asic_ss_assignment *)
+					((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
+			}
+			break;
+		default:
+			DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
+			break;
+		}
+
+	}
+	return false;
+}
+
+union get_clock_dividers {
+	struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
+	struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
+	struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
+	struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
+	struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
+	struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
+	struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
+};
+
+int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
+				       u8 clock_type,
+				       u32 clock,
+				       bool strobe_mode,
+				       struct atom_clock_dividers *dividers)
+{
+	union get_clock_dividers args;
+	int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
+	u8 frev, crev;
+
+	memset(&args, 0, sizeof(args));
+	memset(dividers, 0, sizeof(struct atom_clock_dividers));
+
+	if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
+		return -EINVAL;
+
+	switch (crev) {
+	case 2:
+	case 3:
+	case 5:
+		/* r6xx, r7xx, evergreen, ni, si.
+		 * TODO: add support for asic_type <= CHIP_RV770*/
+		if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
+			args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
+
+			amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+			dividers->post_div = args.v3.ucPostDiv;
+			dividers->enable_post_div = (args.v3.ucCntlFlag &
+						     ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
+			dividers->enable_dithen = (args.v3.ucCntlFlag &
+						   ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
+			dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
+			dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
+			dividers->ref_div = args.v3.ucRefDiv;
+			dividers->vco_mode = (args.v3.ucCntlFlag &
+					      ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
+		} else {
+			/* for SI we use ComputeMemoryClockParam for memory plls */
+			if (adev->asic_type >= CHIP_TAHITI)
+				return -EINVAL;
+			args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
+			if (strobe_mode)
+				args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
+
+			amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+			dividers->post_div = args.v5.ucPostDiv;
+			dividers->enable_post_div = (args.v5.ucCntlFlag &
+						     ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
+			dividers->enable_dithen = (args.v5.ucCntlFlag &
+						   ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
+			dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
+			dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
+			dividers->ref_div = args.v5.ucRefDiv;
+			dividers->vco_mode = (args.v5.ucCntlFlag &
+					      ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
+		}
+		break;
+	case 4:
+		/* fusion */
+		args.v4.ulClock = cpu_to_le32(clock);	/* 10 khz */
+
+		amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+		dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
+		dividers->real_clock = le32_to_cpu(args.v4.ulClock);
+		break;
+	case 6:
+		/* CI */
+		/* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
+		args.v6_in.ulClock.ulComputeClockFlag = clock_type;
+		args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);	/* 10 khz */
+
+		amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+		dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
+		dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
+		dividers->ref_div = args.v6_out.ucPllRefDiv;
+		dividers->post_div = args.v6_out.ucPllPostDiv;
+		dividers->flags = args.v6_out.ucPllCntlFlag;
+		dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
+		dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
+					    u32 clock,
+					    bool strobe_mode,
+					    struct atom_mpll_param *mpll_param)
+{
+	COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
+	int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
+	u8 frev, crev;
+
+	memset(&args, 0, sizeof(args));
+	memset(mpll_param, 0, sizeof(struct atom_mpll_param));
+
+	if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
+		return -EINVAL;
+
+	switch (frev) {
+	case 2:
+		switch (crev) {
+		case 1:
+			/* SI */
+			args.ulClock = cpu_to_le32(clock);	/* 10 khz */
+			args.ucInputFlag = 0;
+			if (strobe_mode)
+				args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
+
+			amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+			mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
+			mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
+			mpll_param->post_div = args.ucPostDiv;
+			mpll_param->dll_speed = args.ucDllSpeed;
+			mpll_param->bwcntl = args.ucBWCntl;
+			mpll_param->vco_mode =
+				(args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
+			mpll_param->yclk_sel =
+				(args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
+			mpll_param->qdr =
+				(args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
+			mpll_param->half_rate =
+				(args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
+					     u32 eng_clock, u32 mem_clock)
+{
+	SET_ENGINE_CLOCK_PS_ALLOCATION args;
+	int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
+	u32 tmp;
+
+	memset(&args, 0, sizeof(args));
+
+	tmp = eng_clock & SET_CLOCK_FREQ_MASK;
+	tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
+
+	args.ulTargetEngineClock = cpu_to_le32(tmp);
+	if (mem_clock)
+		args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
+
+	amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+}
+
+void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
+					  u16 *vddc, u16 *vddci, u16 *mvdd)
+{
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
+	u8 frev, crev;
+	u16 data_offset;
+	union firmware_info *firmware_info;
+
+	*vddc = 0;
+	*vddci = 0;
+	*mvdd = 0;
+
+	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+				   &frev, &crev, &data_offset)) {
+		firmware_info =
+			(union firmware_info *)(mode_info->atom_context->bios +
+						data_offset);
+		*vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
+		if ((frev == 2) && (crev >= 2)) {
+			*vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
+			*mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
+		}
+	}
+}
+
+union set_voltage {
+	struct _SET_VOLTAGE_PS_ALLOCATION alloc;
+	struct _SET_VOLTAGE_PARAMETERS v1;
+	struct _SET_VOLTAGE_PARAMETERS_V2 v2;
+	struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
+};
+
+int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
+			     u16 voltage_id, u16 *voltage)
+{
+	union set_voltage args;
+	int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
+	u8 frev, crev;
+
+	if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
+		return -EINVAL;
+
+	switch (crev) {
+	case 1:
+		return -EINVAL;
+	case 2:
+		args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
+		args.v2.ucVoltageMode = 0;
+		args.v2.usVoltageLevel = 0;
+
+		amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+		*voltage = le16_to_cpu(args.v2.usVoltageLevel);
+		break;
+	case 3:
+		args.v3.ucVoltageType = voltage_type;
+		args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
+		args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
+
+		amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+		*voltage = le16_to_cpu(args.v3.usVoltageLevel);
+		break;
+	default:
+		DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
+						      u16 *voltage,
+						      u16 leakage_idx)
+{
+	return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
+}
+
+int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
+					      u16 *leakage_id)
+{
+	union set_voltage args;
+	int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
+	u8 frev, crev;
+
+	if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
+		return -EINVAL;
+
+	switch (crev) {
+	case 3:
+	case 4:
+		args.v3.ucVoltageType = 0;
+		args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
+		args.v3.usVoltageLevel = 0;
+
+		amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+		*leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
+		break;
+	default:
+		DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
+							     u16 *vddc, u16 *vddci,
+							     u16 virtual_voltage_id,
+							     u16 vbios_voltage_id)
+{
+	int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
+	u8 frev, crev;
+	u16 data_offset, size;
+	int i, j;
+	ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
+	u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
+
+	*vddc = 0;
+	*vddci = 0;
+
+	if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+				    &frev, &crev, &data_offset))
+		return -EINVAL;
+
+	profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
+		(adev->mode_info.atom_context->bios + data_offset);
+
+	switch (frev) {
+	case 1:
+		return -EINVAL;
+	case 2:
+		switch (crev) {
+		case 1:
+			if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
+				return -EINVAL;
+			leakage_bin = (u16 *)
+				(adev->mode_info.atom_context->bios + data_offset +
+				 le16_to_cpu(profile->usLeakageBinArrayOffset));
+			vddc_id_buf = (u16 *)
+				(adev->mode_info.atom_context->bios + data_offset +
+				 le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
+			vddc_buf = (u16 *)
+				(adev->mode_info.atom_context->bios + data_offset +
+				 le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
+			vddci_id_buf = (u16 *)
+				(adev->mode_info.atom_context->bios + data_offset +
+				 le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
+			vddci_buf = (u16 *)
+				(adev->mode_info.atom_context->bios + data_offset +
+				 le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
+
+			if (profile->ucElbVDDC_Num > 0) {
+				for (i = 0; i < profile->ucElbVDDC_Num; i++) {
+					if (vddc_id_buf[i] == virtual_voltage_id) {
+						for (j = 0; j < profile->ucLeakageBinNum; j++) {
+							if (vbios_voltage_id <= leakage_bin[j]) {
+								*vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
+								break;
+							}
+						}
+						break;
+					}
+				}
+			}
+			if (profile->ucElbVDDCI_Num > 0) {
+				for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
+					if (vddci_id_buf[i] == virtual_voltage_id) {
+						for (j = 0; j < profile->ucLeakageBinNum; j++) {
+							if (vbios_voltage_id <= leakage_bin[j]) {
+								*vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
+								break;
+							}
+						}
+						break;
+					}
+				}
+			}
+			break;
+		default:
+			DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+			return -EINVAL;
+		}
+		break;
+	default:
+		DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+union get_voltage_info {
+	struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
+	struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
+};
+
+int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
+				    u16 virtual_voltage_id,
+				    u16 *voltage)
+{
+	int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
+	u32 entry_id;
+	u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
+	union get_voltage_info args;
+
+	for (entry_id = 0; entry_id < count; entry_id++) {
+		if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
+		    virtual_voltage_id)
+			break;
+	}
+
+	if (entry_id >= count)
+		return -EINVAL;
+
+	args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
+	args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
+	args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
+	args.in.ulSCLKFreq =
+		cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
+
+	amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+
+	*voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
+
+	return 0;
+}
+
+union voltage_object_info {
+	struct _ATOM_VOLTAGE_OBJECT_INFO v1;
+	struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
+	struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
+};
+
+union voltage_object {
+	struct _ATOM_VOLTAGE_OBJECT v1;
+	struct _ATOM_VOLTAGE_OBJECT_V2 v2;
+	union _ATOM_VOLTAGE_OBJECT_V3 v3;
+};
+
+
+static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
+									u8 voltage_type, u8 voltage_mode)
+{
+	u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
+	u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
+	u8 *start = (u8*)v3;
+
+	while (offset < size) {
+		ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
+		if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
+		    (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
+			return vo;
+		offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
+	}
+	return NULL;
+}
+
+int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
+			      u8 voltage_type,
+			      u8 *svd_gpio_id, u8 *svc_gpio_id)
+{
+	int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
+	u8 frev, crev;
+	u16 data_offset, size;
+	union voltage_object_info *voltage_info;
+	union voltage_object *voltage_object = NULL;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		voltage_info = (union voltage_object_info *)
+			(adev->mode_info.atom_context->bios + data_offset);
+
+		switch (frev) {
+		case 3:
+			switch (crev) {
+			case 1:
+				voltage_object = (union voltage_object *)
+					amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
+								      voltage_type,
+								      VOLTAGE_OBJ_SVID2);
+				if (voltage_object) {
+					*svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
+					*svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
+				} else {
+					return -EINVAL;
+				}
+				break;
+			default:
+				DRM_ERROR("unknown voltage object table\n");
+				return -EINVAL;
+			}
+			break;
+		default:
+			DRM_ERROR("unknown voltage object table\n");
+			return -EINVAL;
+		}
+
+	}
+	return 0;
+}
+
+bool
+amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
+				u8 voltage_type, u8 voltage_mode)
+{
+	int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
+	u8 frev, crev;
+	u16 data_offset, size;
+	union voltage_object_info *voltage_info;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		voltage_info = (union voltage_object_info *)
+			(adev->mode_info.atom_context->bios + data_offset);
+
+		switch (frev) {
+		case 3:
+			switch (crev) {
+			case 1:
+				if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
+								  voltage_type, voltage_mode))
+					return true;
+				break;
+			default:
+				DRM_ERROR("unknown voltage object table\n");
+				return false;
+			}
+			break;
+		default:
+			DRM_ERROR("unknown voltage object table\n");
+			return false;
+		}
+
+	}
+	return false;
+}
+
+int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
+				      u8 voltage_type, u8 voltage_mode,
+				      struct atom_voltage_table *voltage_table)
+{
+	int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
+	u8 frev, crev;
+	u16 data_offset, size;
+	int i;
+	union voltage_object_info *voltage_info;
+	union voltage_object *voltage_object = NULL;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		voltage_info = (union voltage_object_info *)
+			(adev->mode_info.atom_context->bios + data_offset);
+
+		switch (frev) {
+		case 3:
+			switch (crev) {
+			case 1:
+				voltage_object = (union voltage_object *)
+					amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
+								      voltage_type, voltage_mode);
+				if (voltage_object) {
+					ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
+						&voltage_object->v3.asGpioVoltageObj;
+					VOLTAGE_LUT_ENTRY_V2 *lut;
+					if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
+						return -EINVAL;
+					lut = &gpio->asVolGpioLut[0];
+					for (i = 0; i < gpio->ucGpioEntryNum; i++) {
+						voltage_table->entries[i].value =
+							le16_to_cpu(lut->usVoltageValue);
+						voltage_table->entries[i].smio_low =
+							le32_to_cpu(lut->ulVoltageId);
+						lut = (VOLTAGE_LUT_ENTRY_V2 *)
+							((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
+					}
+					voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
+					voltage_table->count = gpio->ucGpioEntryNum;
+					voltage_table->phase_delay = gpio->ucPhaseDelay;
+					return 0;
+				}
+				break;
+			default:
+				DRM_ERROR("unknown voltage object table\n");
+				return -EINVAL;
+			}
+			break;
+		default:
+			DRM_ERROR("unknown voltage object table\n");
+			return -EINVAL;
+		}
+	}
+	return -EINVAL;
+}
+
+union vram_info {
+	struct _ATOM_VRAM_INFO_V3 v1_3;
+	struct _ATOM_VRAM_INFO_V4 v1_4;
+	struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
+};
+
+#define MEM_ID_MASK           0xff000000
+#define MEM_ID_SHIFT          24
+#define CLOCK_RANGE_MASK      0x00ffffff
+#define CLOCK_RANGE_SHIFT     0
+#define LOW_NIBBLE_MASK       0xf
+#define DATA_EQU_PREV         0
+#define DATA_FROM_TABLE       4
+
+int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
+				      u8 module_index,
+				      struct atom_mc_reg_table *reg_table)
+{
+	int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
+	u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
+	u32 i = 0, j;
+	u16 data_offset, size;
+	union vram_info *vram_info;
+
+	memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+				   &frev, &crev, &data_offset)) {
+		vram_info = (union vram_info *)
+			(adev->mode_info.atom_context->bios + data_offset);
+		switch (frev) {
+		case 1:
+			DRM_ERROR("old table version %d, %d\n", frev, crev);
+			return -EINVAL;
+		case 2:
+			switch (crev) {
+			case 1:
+				if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
+					ATOM_INIT_REG_BLOCK *reg_block =
+						(ATOM_INIT_REG_BLOCK *)
+						((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
+					ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
+						(ATOM_MEMORY_SETTING_DATA_BLOCK *)
+						((u8 *)reg_block + (2 * sizeof(u16)) +
+						 le16_to_cpu(reg_block->usRegIndexTblSize));
+					ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
+					num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
+							   sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
+					if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
+						return -EINVAL;
+					while (i < num_entries) {
+						if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
+							break;
+						reg_table->mc_reg_address[i].s1 =
+							(u16)(le16_to_cpu(format->usRegIndex));
+						reg_table->mc_reg_address[i].pre_reg_data =
+							(u8)(format->ucPreRegDataLength);
+						i++;
+						format = (ATOM_INIT_REG_INDEX_FORMAT *)
+							((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
+					}
+					reg_table->last = i;
+					while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
+					       (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
+						t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
+								>> MEM_ID_SHIFT);
+						if (module_index == t_mem_id) {
+							reg_table->mc_reg_table_entry[num_ranges].mclk_max =
+								(u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
+								      >> CLOCK_RANGE_SHIFT);
+							for (i = 0, j = 1; i < reg_table->last; i++) {
+								if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
+									reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
+										(u32)le32_to_cpu(*((u32 *)reg_data + j));
+									j++;
+								} else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
+									reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
+										reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
+								}
+							}
+							num_ranges++;
+						}
+						reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
+							((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
+					}
+					if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
+						return -EINVAL;
+					reg_table->num_entries = num_ranges;
+				} else
+					return -EINVAL;
+				break;
+			default:
+				DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+				return -EINVAL;
+			}
+			break;
+		default:
+			DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+			return -EINVAL;
+		}
+		return 0;
+	}
+	return -EINVAL;
+}
+
+bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
+{
+	int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
+	u8 frev, crev;
+	u16 data_offset, size;
+
+	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
+					  &frev, &crev, &data_offset))
+		return true;
+
+	return false;
+}
+
+void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
+{
+	uint32_t bios_6_scratch;
+
+	bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
+
+	if (lock) {
+		bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
+		bios_6_scratch &= ~ATOM_S6_ACC_MODE;
+	} else {
+		bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
+		bios_6_scratch |= ATOM_S6_ACC_MODE;
+	}
+
+	WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
+}
+
+static void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
+{
+	uint32_t bios_2_scratch, bios_6_scratch;
+
+	adev->bios_scratch_reg_offset = mmBIOS_SCRATCH_0;
+
+	bios_2_scratch = RREG32(adev->bios_scratch_reg_offset + 2);
+	bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
+
+	/* let the bios control the backlight */
+	bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
+
+	/* tell the bios not to handle mode switching */
+	bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
+
+	/* clear the vbios dpms state */
+	bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
+
+	WREG32(adev->bios_scratch_reg_offset + 2, bios_2_scratch);
+	WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
+}
+
+void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
+					      bool hung)
+{
+	u32 tmp = RREG32(adev->bios_scratch_reg_offset + 3);
+
+	if (hung)
+		tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
+	else
+		tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
+
+	WREG32(adev->bios_scratch_reg_offset + 3, tmp);
+}
+
+bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev)
+{
+	u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7);
+
+	if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK)
+		return false;
+	else
+		return true;
+}
+
+/* Atom needs data in little endian format so swap as appropriate when copying
+ * data to or from atom. Note that atom operates on dw units.
+ *
+ * Use to_le=true when sending data to atom and provide at least
+ * ALIGN(num_bytes,4) bytes in the dst buffer.
+ *
+ * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
+ * byes in the src buffer.
+ */
+void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
+{
+#ifdef __BIG_ENDIAN
+	u32 src_tmp[5], dst_tmp[5];
+	int i;
+	u8 align_num_bytes = ALIGN(num_bytes, 4);
+
+	if (to_le) {
+		memcpy(src_tmp, src, num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = cpu_to_le32(src_tmp[i]);
+		memcpy(dst, dst_tmp, align_num_bytes);
+	} else {
+		memcpy(src_tmp, src, align_num_bytes);
+		for (i = 0; i < align_num_bytes / 4; i++)
+			dst_tmp[i] = le32_to_cpu(src_tmp[i]);
+		memcpy(dst, dst_tmp, num_bytes);
+	}
+#else
+	memcpy(dst, src, num_bytes);
+#endif
+}
+
+static int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
+	uint16_t data_offset;
+	int usage_bytes = 0;
+	struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
+	u64 start_addr;
+	u64 size;
+
+	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
+		firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
+
+		DRM_DEBUG("atom firmware requested %08x %dkb\n",
+			  le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
+			  le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
+
+		start_addr = firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware;
+		size = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb;
+
+		if ((uint32_t)(start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
+			(uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
+			ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
+			/* Firmware request VRAM reservation for SR-IOV */
+			adev->mman.fw_vram_usage_start_offset = (start_addr &
+				(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
+			adev->mman.fw_vram_usage_size = size << 10;
+			/* Use the default scratch size */
+			usage_bytes = 0;
+		} else {
+			usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
+		}
+	}
+	ctx->scratch_size_bytes = 0;
+	if (usage_bytes == 0)
+		usage_bytes = 20 * 1024;
+	/* allocate some scratch memory */
+	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
+	if (!ctx->scratch)
+		return -ENOMEM;
+	ctx->scratch_size_bytes = usage_bytes;
+	return 0;
+}
+
+/* ATOM accessor methods */
+/*
+ * ATOM is an interpreted byte code stored in tables in the vbios.  The
+ * driver registers callbacks to access registers and the interpreter
+ * in the driver parses the tables and executes then to program specific
+ * actions (set display modes, asic init, etc.).  See amdgpu_atombios.c,
+ * atombios.h, and atom.c
+ */
+
+/**
+ * cail_pll_read - read PLL register
+ *
+ * @info: atom card_info pointer
+ * @reg: PLL register offset
+ *
+ * Provides a PLL register accessor for the atom interpreter (r4xx+).
+ * Returns the value of the PLL register.
+ */
+static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
+{
+	return 0;
+}
+
+/**
+ * cail_pll_write - write PLL register
+ *
+ * @info: atom card_info pointer
+ * @reg: PLL register offset
+ * @val: value to write to the pll register
+ *
+ * Provides a PLL register accessor for the atom interpreter (r4xx+).
+ */
+static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
+{
+
+}
+
+/**
+ * cail_mc_read - read MC (Memory Controller) register
+ *
+ * @info: atom card_info pointer
+ * @reg: MC register offset
+ *
+ * Provides an MC register accessor for the atom interpreter (r4xx+).
+ * Returns the value of the MC register.
+ */
+static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
+{
+	return 0;
+}
+
+/**
+ * cail_mc_write - write MC (Memory Controller) register
+ *
+ * @info: atom card_info pointer
+ * @reg: MC register offset
+ * @val: value to write to the pll register
+ *
+ * Provides a MC register accessor for the atom interpreter (r4xx+).
+ */
+static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
+{
+
+}
+
+/**
+ * cail_reg_write - write MMIO register
+ *
+ * @info: atom card_info pointer
+ * @reg: MMIO register offset
+ * @val: value to write to the pll register
+ *
+ * Provides a MMIO register accessor for the atom interpreter (r4xx+).
+ */
+static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
+{
+	struct amdgpu_device *adev = drm_to_adev(info->dev);
+
+	WREG32(reg, val);
+}
+
+/**
+ * cail_reg_read - read MMIO register
+ *
+ * @info: atom card_info pointer
+ * @reg: MMIO register offset
+ *
+ * Provides an MMIO register accessor for the atom interpreter (r4xx+).
+ * Returns the value of the MMIO register.
+ */
+static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
+{
+	struct amdgpu_device *adev = drm_to_adev(info->dev);
+	uint32_t r;
+
+	r = RREG32(reg);
+	return r;
+}
+
+/**
+ * cail_ioreg_write - write IO register
+ *
+ * @info: atom card_info pointer
+ * @reg: IO register offset
+ * @val: value to write to the pll register
+ *
+ * Provides a IO register accessor for the atom interpreter (r4xx+).
+ */
+static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
+{
+	struct amdgpu_device *adev = drm_to_adev(info->dev);
+
+	WREG32_IO(reg, val);
+}
+
+/**
+ * cail_ioreg_read - read IO register
+ *
+ * @info: atom card_info pointer
+ * @reg: IO register offset
+ *
+ * Provides an IO register accessor for the atom interpreter (r4xx+).
+ * Returns the value of the IO register.
+ */
+static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
+{
+	struct amdgpu_device *adev = drm_to_adev(info->dev);
+	uint32_t r;
+
+	r = RREG32_IO(reg);
+	return r;
+}
+
+static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev,
+						 struct device_attribute *attr,
+						 char *buf)
+{
+	struct drm_device *ddev = dev_get_drvdata(dev);
+	struct amdgpu_device *adev = drm_to_adev(ddev);
+	struct atom_context *ctx = adev->mode_info.atom_context;
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", ctx->vbios_version);
+}
+
+static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version,
+		   NULL);
+
+/**
+ * amdgpu_atombios_fini - free the driver info and callbacks for atombios
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Frees the driver info and register access callbacks for the ATOM
+ * interpreter (r4xx+).
+ * Called at driver shutdown.
+ */
+void amdgpu_atombios_fini(struct amdgpu_device *adev)
+{
+	if (adev->mode_info.atom_context) {
+		kfree(adev->mode_info.atom_context->scratch);
+		kfree(adev->mode_info.atom_context->iio);
+	}
+	kfree(adev->mode_info.atom_context);
+	adev->mode_info.atom_context = NULL;
+	kfree(adev->mode_info.atom_card_info);
+	adev->mode_info.atom_card_info = NULL;
+	device_remove_file(adev->dev, &dev_attr_vbios_version);
+}
+
+/**
+ * amdgpu_atombios_init - init the driver info and callbacks for atombios
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Initializes the driver info and register access callbacks for the
+ * ATOM interpreter (r4xx+).
+ * Returns 0 on sucess, -ENOMEM on failure.
+ * Called at driver startup.
+ */
+int amdgpu_atombios_init(struct amdgpu_device *adev)
+{
+	struct card_info *atom_card_info =
+	    kzalloc(sizeof(struct card_info), GFP_KERNEL);
+	int ret;
+
+	if (!atom_card_info)
+		return -ENOMEM;
+
+	adev->mode_info.atom_card_info = atom_card_info;
+	atom_card_info->dev = adev_to_drm(adev);
+	atom_card_info->reg_read = cail_reg_read;
+	atom_card_info->reg_write = cail_reg_write;
+	/* needed for iio ops */
+	if (adev->rio_mem) {
+		atom_card_info->ioreg_read = cail_ioreg_read;
+		atom_card_info->ioreg_write = cail_ioreg_write;
+	} else {
+		DRM_DEBUG("PCI I/O BAR is not found. Using MMIO to access ATOM BIOS\n");
+		atom_card_info->ioreg_read = cail_reg_read;
+		atom_card_info->ioreg_write = cail_reg_write;
+	}
+	atom_card_info->mc_read = cail_mc_read;
+	atom_card_info->mc_write = cail_mc_write;
+	atom_card_info->pll_read = cail_pll_read;
+	atom_card_info->pll_write = cail_pll_write;
+
+	adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
+	if (!adev->mode_info.atom_context) {
+		amdgpu_atombios_fini(adev);
+		return -ENOMEM;
+	}
+
+	mutex_init(&adev->mode_info.atom_context->mutex);
+	if (adev->is_atom_fw) {
+		amdgpu_atomfirmware_scratch_regs_init(adev);
+		amdgpu_atomfirmware_allocate_fb_scratch(adev);
+	} else {
+		amdgpu_atombios_scratch_regs_init(adev);
+		amdgpu_atombios_allocate_fb_scratch(adev);
+	}
+
+	ret = device_create_file(adev->dev, &dev_attr_vbios_version);
+	if (ret) {
+		DRM_ERROR("Failed to create device file for VBIOS version\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int amdgpu_atombios_get_data_table(struct amdgpu_device *adev,
+				   uint32_t table,
+				   uint16_t *size,
+				   uint8_t *frev,
+				   uint8_t *crev,
+				   uint8_t **addr)
+{
+	uint16_t data_start;
+
+	if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, table,
+					   size, frev, crev, &data_start))
+		return -EINVAL;
+
+	*addr = (uint8_t *)adev->mode_info.atom_context->bios + data_start;
+
+	return 0;
+}