drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c - linux - Git at Google

 /*
  * Copyright 2015 Advanced Micro Devices, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  *
  */
 #include <linux/list.h>
 #include <linux/pci.h>
 #include <linux/slab.h>

 #include <linux/firmware.h>
 #include <drm/amdgpu_drm.h>
 #include "amdgpu.h"
 #include "atom.h"
 #include "amdgpu_ucode.h"

 struct amdgpu_cgs_device {
 	struct cgs_device base;
 	struct amdgpu_device *adev;
 };

 #define CGS_FUNC_ADEV							\
 	struct amdgpu_device *adev =					\
 		((struct amdgpu_cgs_device *)cgs_device)->adev


 static uint32_t amdgpu_cgs_read_register(struct cgs_device *cgs_device, unsigned offset)
 {
 	CGS_FUNC_ADEV;
 	return RREG32(offset);
 }

 static void amdgpu_cgs_write_register(struct cgs_device *cgs_device, unsigned offset,
 				      uint32_t value)
 {
 	CGS_FUNC_ADEV;
 	WREG32(offset, value);
 }

 static uint32_t amdgpu_cgs_read_ind_register(struct cgs_device *cgs_device,
 					     enum cgs_ind_reg space,
 					     unsigned index)
 {
 	CGS_FUNC_ADEV;
 	switch (space) {
 	case CGS_IND_REG__PCIE:
 		return RREG32_PCIE(index);
 	case CGS_IND_REG__SMC:
 		return RREG32_SMC(index);
 	case CGS_IND_REG__UVD_CTX:
 		return RREG32_UVD_CTX(index);
 	case CGS_IND_REG__DIDT:
 		return RREG32_DIDT(index);
 	case CGS_IND_REG_GC_CAC:
 		return RREG32_GC_CAC(index);
 	case CGS_IND_REG_SE_CAC:
 		return RREG32_SE_CAC(index);
 	case CGS_IND_REG__AUDIO_ENDPT:
 		DRM_ERROR("audio endpt register access not implemented.\n");
 		return 0;
 	default:
 		BUG();
 	}
 	WARN(1, "Invalid indirect register space");
 	return 0;
 }

 static void amdgpu_cgs_write_ind_register(struct cgs_device *cgs_device,
 					  enum cgs_ind_reg space,
 					  unsigned index, uint32_t value)
 {
 	CGS_FUNC_ADEV;
 	switch (space) {
 	case CGS_IND_REG__PCIE:
 		return WREG32_PCIE(index, value);
 	case CGS_IND_REG__SMC:
 		return WREG32_SMC(index, value);
 	case CGS_IND_REG__UVD_CTX:
 		return WREG32_UVD_CTX(index, value);
 	case CGS_IND_REG__DIDT:
 		return WREG32_DIDT(index, value);
 	case CGS_IND_REG_GC_CAC:
 		return WREG32_GC_CAC(index, value);
 	case CGS_IND_REG_SE_CAC:
 		return WREG32_SE_CAC(index, value);
 	case CGS_IND_REG__AUDIO_ENDPT:
 		DRM_ERROR("audio endpt register access not implemented.\n");
 		return;
 	default:
 		BUG();
 	}
 	WARN(1, "Invalid indirect register space");
 }

 static uint32_t fw_type_convert(struct cgs_device *cgs_device, uint32_t fw_type)
 {
 	CGS_FUNC_ADEV;
 	enum AMDGPU_UCODE_ID result = AMDGPU_UCODE_ID_MAXIMUM;

 	switch (fw_type) {
 	case CGS_UCODE_ID_SDMA0:
 		result = AMDGPU_UCODE_ID_SDMA0;
 		break;
 	case CGS_UCODE_ID_SDMA1:
 		result = AMDGPU_UCODE_ID_SDMA1;
 		break;
 	case CGS_UCODE_ID_CP_CE:
 		result = AMDGPU_UCODE_ID_CP_CE;
 		break;
 	case CGS_UCODE_ID_CP_PFP:
 		result = AMDGPU_UCODE_ID_CP_PFP;
 		break;
 	case CGS_UCODE_ID_CP_ME:
 		result = AMDGPU_UCODE_ID_CP_ME;
 		break;
 	case CGS_UCODE_ID_CP_MEC:
 	case CGS_UCODE_ID_CP_MEC_JT1:
 		result = AMDGPU_UCODE_ID_CP_MEC1;
 		break;
 	case CGS_UCODE_ID_CP_MEC_JT2:
 		/* for VI. JT2 should be the same as JT1, because:
 			1, MEC2 and MEC1 use exactly same FW.
 			2, JT2 is not pached but JT1 is.
 		*/
 		if (adev->asic_type >= CHIP_TOPAZ)
 			result = AMDGPU_UCODE_ID_CP_MEC1;
 		else
 			result = AMDGPU_UCODE_ID_CP_MEC2;
 		break;
 	case CGS_UCODE_ID_RLC_G:
 		result = AMDGPU_UCODE_ID_RLC_G;
 		break;
 	case CGS_UCODE_ID_STORAGE:
 		result = AMDGPU_UCODE_ID_STORAGE;
 		break;
 	default:
 		DRM_ERROR("Firmware type not supported\n");
 	}
 	return result;
 }

 static uint16_t amdgpu_get_firmware_version(struct cgs_device *cgs_device,
 					enum cgs_ucode_id type)
 {
 	CGS_FUNC_ADEV;
 	uint16_t fw_version = 0;

 	switch (type) {
 		case CGS_UCODE_ID_SDMA0:
 			fw_version = adev->sdma.instance[0].fw_version;
 			break;
 		case CGS_UCODE_ID_SDMA1:
 			fw_version = adev->sdma.instance[1].fw_version;
 			break;
 		case CGS_UCODE_ID_CP_CE:
 			fw_version = adev->gfx.ce_fw_version;
 			break;
 		case CGS_UCODE_ID_CP_PFP:
 			fw_version = adev->gfx.pfp_fw_version;
 			break;
 		case CGS_UCODE_ID_CP_ME:
 			fw_version = adev->gfx.me_fw_version;
 			break;
 		case CGS_UCODE_ID_CP_MEC:
 			fw_version = adev->gfx.mec_fw_version;
 			break;
 		case CGS_UCODE_ID_CP_MEC_JT1:
 			fw_version = adev->gfx.mec_fw_version;
 			break;
 		case CGS_UCODE_ID_CP_MEC_JT2:
 			fw_version = adev->gfx.mec_fw_version;
 			break;
 		case CGS_UCODE_ID_RLC_G:
 			fw_version = adev->gfx.rlc_fw_version;
 			break;
 		case CGS_UCODE_ID_STORAGE:
 			break;
 		default:
 			DRM_ERROR("firmware type %d do not have version\n", type);
 			break;
 	}
 	return fw_version;
 }

 static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
 					enum cgs_ucode_id type,
 					struct cgs_firmware_info *info)
 {
 	CGS_FUNC_ADEV;

 	if ((CGS_UCODE_ID_SMU != type) && (CGS_UCODE_ID_SMU_SK != type)) {
 		uint64_t gpu_addr;
 		uint32_t data_size;
 		const struct gfx_firmware_header_v1_0 *header;
 		enum AMDGPU_UCODE_ID id;
 		struct amdgpu_firmware_info *ucode;

 		id = fw_type_convert(cgs_device, type);
 		ucode = &adev->firmware.ucode[id];
 		if (ucode->fw == NULL)
 			return -EINVAL;

 		gpu_addr  = ucode->mc_addr;
 		header = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data;
 		data_size = le32_to_cpu(header->header.ucode_size_bytes);

 		if ((type == CGS_UCODE_ID_CP_MEC_JT1) ||
 		    (type == CGS_UCODE_ID_CP_MEC_JT2)) {
 			gpu_addr += ALIGN(le32_to_cpu(header->header.ucode_size_bytes), PAGE_SIZE);
 			data_size = le32_to_cpu(header->jt_size) << 2;
 		}

 		info->kptr = ucode->kaddr;
 		info->image_size = data_size;
 		info->mc_addr = gpu_addr;
 		info->version = (uint16_t)le32_to_cpu(header->header.ucode_version);

 		if (CGS_UCODE_ID_CP_MEC == type)
 			info->image_size = le32_to_cpu(header->jt_offset) << 2;

 		info->fw_version = amdgpu_get_firmware_version(cgs_device, type);
 		info->feature_version = (uint16_t)le32_to_cpu(header->ucode_feature_version);
 	} else {
 		char fw_name[30] = {0};
 		int err = 0;
 		uint32_t ucode_size;
 		uint32_t ucode_start_address;
 		const uint8_t *src;
 		const struct smc_firmware_header_v1_0 *hdr;
 		const struct common_firmware_header *header;
 		struct amdgpu_firmware_info *ucode = NULL;

 		if (!adev->pm.fw) {
 			switch (adev->asic_type) {
 			case CHIP_TAHITI:
 				strcpy(fw_name, "radeon/tahiti_smc.bin");
 				break;
 			case CHIP_PITCAIRN:
 				if ((adev->pdev->revision == 0x81) &&
 				    ((adev->pdev->device == 0x6810) ||
 				    (adev->pdev->device == 0x6811))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "radeon/pitcairn_k_smc.bin");
 				} else {
 					strcpy(fw_name, "radeon/pitcairn_smc.bin");
 				}
 				break;
 			case CHIP_VERDE:
 				if (((adev->pdev->device == 0x6820) &&
 					((adev->pdev->revision == 0x81) ||
 					(adev->pdev->revision == 0x83))) ||
 				    ((adev->pdev->device == 0x6821) &&
 					((adev->pdev->revision == 0x83) ||
 					(adev->pdev->revision == 0x87))) ||
 				    ((adev->pdev->revision == 0x87) &&
 					((adev->pdev->device == 0x6823) ||
 					(adev->pdev->device == 0x682b)))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "radeon/verde_k_smc.bin");
 				} else {
 					strcpy(fw_name, "radeon/verde_smc.bin");
 				}
 				break;
 			case CHIP_OLAND:
 				if (((adev->pdev->revision == 0x81) &&
 					((adev->pdev->device == 0x6600) ||
 					(adev->pdev->device == 0x6604) ||
 					(adev->pdev->device == 0x6605) ||
 					(adev->pdev->device == 0x6610))) ||
 				    ((adev->pdev->revision == 0x83) &&
 					(adev->pdev->device == 0x6610))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "radeon/oland_k_smc.bin");
 				} else {
 					strcpy(fw_name, "radeon/oland_smc.bin");
 				}
 				break;
 			case CHIP_HAINAN:
 				if (((adev->pdev->revision == 0x81) &&
 					(adev->pdev->device == 0x6660)) ||
 				    ((adev->pdev->revision == 0x83) &&
 					((adev->pdev->device == 0x6660) ||
 					(adev->pdev->device == 0x6663) ||
 					(adev->pdev->device == 0x6665) ||
 					 (adev->pdev->device == 0x6667)))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "radeon/hainan_k_smc.bin");
 				} else if ((adev->pdev->revision == 0xc3) &&
 					 (adev->pdev->device == 0x6665)) {
 					info->is_kicker = true;
 					strcpy(fw_name, "radeon/banks_k_2_smc.bin");
 				} else {
 					strcpy(fw_name, "radeon/hainan_smc.bin");
 				}
 				break;
 			case CHIP_BONAIRE:
 				if ((adev->pdev->revision == 0x80) ||
 					(adev->pdev->revision == 0x81) ||
 					(adev->pdev->device == 0x665f)) {
 					info->is_kicker = true;
 					strcpy(fw_name, "amdgpu/bonaire_k_smc.bin");
 				} else {
 					strcpy(fw_name, "amdgpu/bonaire_smc.bin");
 				}
 				break;
 			case CHIP_HAWAII:
 				if (adev->pdev->revision == 0x80) {
 					info->is_kicker = true;
 					strcpy(fw_name, "amdgpu/hawaii_k_smc.bin");
 				} else {
 					strcpy(fw_name, "amdgpu/hawaii_smc.bin");
 				}
 				break;
 			case CHIP_TOPAZ:
 				if (((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x81)) ||
 				    ((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x83)) ||
 				    ((adev->pdev->device == 0x6907) && (adev->pdev->revision == 0x87)) ||
 				    ((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0xD1)) ||
 				    ((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0xD3))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "amdgpu/topaz_k_smc.bin");
 				} else
 					strcpy(fw_name, "amdgpu/topaz_smc.bin");
 				break;
 			case CHIP_TONGA:
 				if (((adev->pdev->device == 0x6939) && (adev->pdev->revision == 0xf1)) ||
 				    ((adev->pdev->device == 0x6938) && (adev->pdev->revision == 0xf1))) {
 					info->is_kicker = true;
 					strcpy(fw_name, "amdgpu/tonga_k_smc.bin");
 				} else
 					strcpy(fw_name, "amdgpu/tonga_smc.bin");
 				break;
 			case CHIP_FIJI:
 				strcpy(fw_name, "amdgpu/fiji_smc.bin");
 				break;
 			case CHIP_POLARIS11:
 				if (type == CGS_UCODE_ID_SMU) {
 					if (ASICID_IS_P21(adev->pdev->device, adev->pdev->revision)) {
 						info->is_kicker = true;
 						strcpy(fw_name, "amdgpu/polaris11_k_smc.bin");
 					} else if (ASICID_IS_P31(adev->pdev->device, adev->pdev->revision)) {
 						info->is_kicker = true;
 						strcpy(fw_name, "amdgpu/polaris11_k2_smc.bin");
 					} else {
 						strcpy(fw_name, "amdgpu/polaris11_smc.bin");
 					}
 				} else if (type == CGS_UCODE_ID_SMU_SK) {
 					strcpy(fw_name, "amdgpu/polaris11_smc_sk.bin");
 				}
 				break;
 			case CHIP_POLARIS10:
 				if (type == CGS_UCODE_ID_SMU) {
 					if (ASICID_IS_P20(adev->pdev->device, adev->pdev->revision)) {
 						info->is_kicker = true;
 						strcpy(fw_name, "amdgpu/polaris10_k_smc.bin");
 					} else if (ASICID_IS_P30(adev->pdev->device, adev->pdev->revision)) {
 						info->is_kicker = true;
 						strcpy(fw_name, "amdgpu/polaris10_k2_smc.bin");
 					} else {
 						strcpy(fw_name, "amdgpu/polaris10_smc.bin");
 					}
 				} else if (type == CGS_UCODE_ID_SMU_SK) {
 					strcpy(fw_name, "amdgpu/polaris10_smc_sk.bin");
 				}
 				break;
 			case CHIP_POLARIS12:
 				if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) {
 					info->is_kicker = true;
 					strcpy(fw_name, "amdgpu/polaris12_k_smc.bin");
 				} else {
 					strcpy(fw_name, "amdgpu/polaris12_smc.bin");
 				}
 				break;
 			case CHIP_VEGAM:
 				strcpy(fw_name, "amdgpu/vegam_smc.bin");
 				break;
 			case CHIP_VEGA10:
 				if ((adev->pdev->device == 0x687f) &&
 					((adev->pdev->revision == 0xc0) ||
 					(adev->pdev->revision == 0xc1) ||
 					(adev->pdev->revision == 0xc3)))
 					strcpy(fw_name, "amdgpu/vega10_acg_smc.bin");
 				else
 					strcpy(fw_name, "amdgpu/vega10_smc.bin");
 				break;
 			case CHIP_VEGA12:
 				strcpy(fw_name, "amdgpu/vega12_smc.bin");
 				break;
 			case CHIP_VEGA20:
 				strcpy(fw_name, "amdgpu/vega20_smc.bin");
 				break;
 			default:
 				DRM_ERROR("SMC firmware not supported\n");
 				return -EINVAL;
 			}

 			err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
 			if (err) {
 				DRM_ERROR("Failed to request firmware\n");
 				return err;
 			}

 			err = amdgpu_ucode_validate(adev->pm.fw);
 			if (err) {
 				DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
 				release_firmware(adev->pm.fw);
 				adev->pm.fw = NULL;
 				return err;
 			}

 			if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
 				ucode = &adev->firmware.ucode[AMDGPU_UCODE_ID_SMC];
 				ucode->ucode_id = AMDGPU_UCODE_ID_SMC;
 				ucode->fw = adev->pm.fw;
 				header = (const struct common_firmware_header *)ucode->fw->data;
 				adev->firmware.fw_size +=
 					ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 			}
 		}

 		hdr = (const struct smc_firmware_header_v1_0 *)	adev->pm.fw->data;
 		amdgpu_ucode_print_smc_hdr(&hdr->header);
 		adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version);
 		ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
 		ucode_start_address = le32_to_cpu(hdr->ucode_start_addr);
 		src = (const uint8_t *)(adev->pm.fw->data +
 		       le32_to_cpu(hdr->header.ucode_array_offset_bytes));

 		info->version = adev->pm.fw_version;
 		info->image_size = ucode_size;
 		info->ucode_start_address = ucode_start_address;
 		info->kptr = (void *)src;
 	}
 	return 0;
 }

 static const struct cgs_ops amdgpu_cgs_ops = {
 	.read_register = amdgpu_cgs_read_register,
 	.write_register = amdgpu_cgs_write_register,
 	.read_ind_register = amdgpu_cgs_read_ind_register,
 	.write_ind_register = amdgpu_cgs_write_ind_register,
 	.get_firmware_info = amdgpu_cgs_get_firmware_info,
 };

 struct cgs_device *amdgpu_cgs_create_device(struct amdgpu_device *adev)
 {
 	struct amdgpu_cgs_device *cgs_device =
 		kmalloc(sizeof(*cgs_device), GFP_KERNEL);

 	if (!cgs_device) {
 		DRM_ERROR("Couldn't allocate CGS device structure\n");
 		return NULL;
 	}

 	cgs_device->base.ops = &amdgpu_cgs_ops;
 	cgs_device->adev = adev;

 	return (struct cgs_device *)cgs_device;
 }

 void amdgpu_cgs_destroy_device(struct cgs_device *cgs_device)
 {
 	kfree(cgs_device);
 }
	/*
	* Copyright 2015 Advanced Micro Devices, Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	*
	*/
	#include <linux/list.h>
	#include <linux/pci.h>
	#include <linux/slab.h>

	#include <linux/firmware.h>
	#include <drm/amdgpu_drm.h>
	#include "amdgpu.h"
	#include "atom.h"
	#include "amdgpu_ucode.h"

	struct amdgpu_cgs_device {
	struct cgs_device base;
	struct amdgpu_device *adev;
	};

	#define CGS_FUNC_ADEV \
	struct amdgpu_device *adev = \
	((struct amdgpu_cgs_device *)cgs_device)->adev


	static uint32_t amdgpu_cgs_read_register(struct cgs_device *cgs_device, unsigned offset)
	{
	CGS_FUNC_ADEV;
	return RREG32(offset);
	}

	static void amdgpu_cgs_write_register(struct cgs_device *cgs_device, unsigned offset,
	uint32_t value)
	{
	CGS_FUNC_ADEV;
	WREG32(offset, value);
	}

	static uint32_t amdgpu_cgs_read_ind_register(struct cgs_device *cgs_device,
	enum cgs_ind_reg space,
	unsigned index)
	{
	CGS_FUNC_ADEV;
	switch (space) {
	case CGS_IND_REG__PCIE:
	return RREG32_PCIE(index);
	case CGS_IND_REG__SMC:
	return RREG32_SMC(index);
	case CGS_IND_REG__UVD_CTX:
	return RREG32_UVD_CTX(index);
	case CGS_IND_REG__DIDT:
	return RREG32_DIDT(index);
	case CGS_IND_REG_GC_CAC:
	return RREG32_GC_CAC(index);
	case CGS_IND_REG_SE_CAC:
	return RREG32_SE_CAC(index);
	case CGS_IND_REG__AUDIO_ENDPT:
	DRM_ERROR("audio endpt register access not implemented.\n");
	return 0;
	default:
	BUG();
	}
	WARN(1, "Invalid indirect register space");
	return 0;
	}

	static void amdgpu_cgs_write_ind_register(struct cgs_device *cgs_device,
	enum cgs_ind_reg space,
	unsigned index, uint32_t value)
	{
	CGS_FUNC_ADEV;
	switch (space) {
	case CGS_IND_REG__PCIE:
	return WREG32_PCIE(index, value);
	case CGS_IND_REG__SMC:
	return WREG32_SMC(index, value);
	case CGS_IND_REG__UVD_CTX:
	return WREG32_UVD_CTX(index, value);
	case CGS_IND_REG__DIDT:
	return WREG32_DIDT(index, value);
	case CGS_IND_REG_GC_CAC:
	return WREG32_GC_CAC(index, value);
	case CGS_IND_REG_SE_CAC:
	return WREG32_SE_CAC(index, value);
	case CGS_IND_REG__AUDIO_ENDPT:
	DRM_ERROR("audio endpt register access not implemented.\n");
	return;
	default:
	BUG();
	}
	WARN(1, "Invalid indirect register space");
	}

	static uint32_t fw_type_convert(struct cgs_device *cgs_device, uint32_t fw_type)
	{
	CGS_FUNC_ADEV;
	enum AMDGPU_UCODE_ID result = AMDGPU_UCODE_ID_MAXIMUM;

	switch (fw_type) {
	case CGS_UCODE_ID_SDMA0:
	result = AMDGPU_UCODE_ID_SDMA0;
	break;
	case CGS_UCODE_ID_SDMA1:
	result = AMDGPU_UCODE_ID_SDMA1;
	break;
	case CGS_UCODE_ID_CP_CE:
	result = AMDGPU_UCODE_ID_CP_CE;
	break;
	case CGS_UCODE_ID_CP_PFP:
	result = AMDGPU_UCODE_ID_CP_PFP;
	break;
	case CGS_UCODE_ID_CP_ME:
	result = AMDGPU_UCODE_ID_CP_ME;
	break;
	case CGS_UCODE_ID_CP_MEC:
	case CGS_UCODE_ID_CP_MEC_JT1:
	result = AMDGPU_UCODE_ID_CP_MEC1;
	break;
	case CGS_UCODE_ID_CP_MEC_JT2:
	/* for VI. JT2 should be the same as JT1, because:
	1, MEC2 and MEC1 use exactly same FW.
	2, JT2 is not pached but JT1 is.
	*/
	if (adev->asic_type >= CHIP_TOPAZ)
	result = AMDGPU_UCODE_ID_CP_MEC1;
	else
	result = AMDGPU_UCODE_ID_CP_MEC2;
	break;
	case CGS_UCODE_ID_RLC_G:
	result = AMDGPU_UCODE_ID_RLC_G;
	break;
	case CGS_UCODE_ID_STORAGE:
	result = AMDGPU_UCODE_ID_STORAGE;
	break;
	default:
	DRM_ERROR("Firmware type not supported\n");
	}
	return result;
	}

	static uint16_t amdgpu_get_firmware_version(struct cgs_device *cgs_device,
	enum cgs_ucode_id type)
	{
	CGS_FUNC_ADEV;
	uint16_t fw_version = 0;

	switch (type) {
	case CGS_UCODE_ID_SDMA0:
	fw_version = adev->sdma.instance[0].fw_version;
	break;
	case CGS_UCODE_ID_SDMA1:
	fw_version = adev->sdma.instance[1].fw_version;
	break;
	case CGS_UCODE_ID_CP_CE:
	fw_version = adev->gfx.ce_fw_version;
	break;
	case CGS_UCODE_ID_CP_PFP:
	fw_version = adev->gfx.pfp_fw_version;
	break;
	case CGS_UCODE_ID_CP_ME:
	fw_version = adev->gfx.me_fw_version;
	break;
	case CGS_UCODE_ID_CP_MEC:
	fw_version = adev->gfx.mec_fw_version;
	break;
	case CGS_UCODE_ID_CP_MEC_JT1:
	fw_version = adev->gfx.mec_fw_version;
	break;
	case CGS_UCODE_ID_CP_MEC_JT2:
	fw_version = adev->gfx.mec_fw_version;
	break;
	case CGS_UCODE_ID_RLC_G:
	fw_version = adev->gfx.rlc_fw_version;
	break;
	case CGS_UCODE_ID_STORAGE:
	break;
	default:
	DRM_ERROR("firmware type %d do not have version\n", type);
	break;
	}
	return fw_version;
	}

	static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
	enum cgs_ucode_id type,
	struct cgs_firmware_info *info)
	{
	CGS_FUNC_ADEV;

	if ((CGS_UCODE_ID_SMU != type) && (CGS_UCODE_ID_SMU_SK != type)) {
	uint64_t gpu_addr;
	uint32_t data_size;
	const struct gfx_firmware_header_v1_0 *header;
	enum AMDGPU_UCODE_ID id;
	struct amdgpu_firmware_info *ucode;

	id = fw_type_convert(cgs_device, type);
	ucode = &adev->firmware.ucode[id];
	if (ucode->fw == NULL)
	return -EINVAL;

	gpu_addr = ucode->mc_addr;
	header = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data;
	data_size = le32_to_cpu(header->header.ucode_size_bytes);

	if ((type == CGS_UCODE_ID_CP_MEC_JT1) \|\|
	(type == CGS_UCODE_ID_CP_MEC_JT2)) {
	gpu_addr += ALIGN(le32_to_cpu(header->header.ucode_size_bytes), PAGE_SIZE);
	data_size = le32_to_cpu(header->jt_size) << 2;
	}

	info->kptr = ucode->kaddr;
	info->image_size = data_size;
	info->mc_addr = gpu_addr;
	info->version = (uint16_t)le32_to_cpu(header->header.ucode_version);

	if (CGS_UCODE_ID_CP_MEC == type)
	info->image_size = le32_to_cpu(header->jt_offset) << 2;

	info->fw_version = amdgpu_get_firmware_version(cgs_device, type);
	info->feature_version = (uint16_t)le32_to_cpu(header->ucode_feature_version);
	} else {
	char fw_name[30] = {0};
	int err = 0;
	uint32_t ucode_size;
	uint32_t ucode_start_address;
	const uint8_t *src;
	const struct smc_firmware_header_v1_0 *hdr;
	const struct common_firmware_header *header;
	struct amdgpu_firmware_info *ucode = NULL;

	if (!adev->pm.fw) {
	switch (adev->asic_type) {
	case CHIP_TAHITI:
	strcpy(fw_name, "radeon/tahiti_smc.bin");
	break;
	case CHIP_PITCAIRN:
	if ((adev->pdev->revision == 0x81) &&
	((adev->pdev->device == 0x6810) \|\|
	(adev->pdev->device == 0x6811))) {
	info->is_kicker = true;
	strcpy(fw_name, "radeon/pitcairn_k_smc.bin");
	} else {
	strcpy(fw_name, "radeon/pitcairn_smc.bin");
	}
	break;
	case CHIP_VERDE:
	if (((adev->pdev->device == 0x6820) &&
	((adev->pdev->revision == 0x81) \|\|
	(adev->pdev->revision == 0x83))) \|\|
	((adev->pdev->device == 0x6821) &&
	((adev->pdev->revision == 0x83) \|\|
	(adev->pdev->revision == 0x87))) \|\|
	((adev->pdev->revision == 0x87) &&
	((adev->pdev->device == 0x6823) \|\|
	(adev->pdev->device == 0x682b)))) {
	info->is_kicker = true;
	strcpy(fw_name, "radeon/verde_k_smc.bin");
	} else {
	strcpy(fw_name, "radeon/verde_smc.bin");
	}
	break;
	case CHIP_OLAND:
	if (((adev->pdev->revision == 0x81) &&
	((adev->pdev->device == 0x6600) \|\|
	(adev->pdev->device == 0x6604) \|\|
	(adev->pdev->device == 0x6605) \|\|
	(adev->pdev->device == 0x6610))) \|\|
	((adev->pdev->revision == 0x83) &&
	(adev->pdev->device == 0x6610))) {
	info->is_kicker = true;
	strcpy(fw_name, "radeon/oland_k_smc.bin");
	} else {
	strcpy(fw_name, "radeon/oland_smc.bin");
	}
	break;
	case CHIP_HAINAN:
	if (((adev->pdev->revision == 0x81) &&
	(adev->pdev->device == 0x6660)) \|\|
	((adev->pdev->revision == 0x83) &&
	((adev->pdev->device == 0x6660) \|\|
	(adev->pdev->device == 0x6663) \|\|
	(adev->pdev->device == 0x6665) \|\|
	(adev->pdev->device == 0x6667)))) {
	info->is_kicker = true;
	strcpy(fw_name, "radeon/hainan_k_smc.bin");
	} else if ((adev->pdev->revision == 0xc3) &&
	(adev->pdev->device == 0x6665)) {
	info->is_kicker = true;
	strcpy(fw_name, "radeon/banks_k_2_smc.bin");
	} else {
	strcpy(fw_name, "radeon/hainan_smc.bin");
	}
	break;
	case CHIP_BONAIRE:
	if ((adev->pdev->revision == 0x80) \|\|
	(adev->pdev->revision == 0x81) \|\|
	(adev->pdev->device == 0x665f)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/bonaire_k_smc.bin");
	} else {
	strcpy(fw_name, "amdgpu/bonaire_smc.bin");
	}
	break;
	case CHIP_HAWAII:
	if (adev->pdev->revision == 0x80) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/hawaii_k_smc.bin");
	} else {
	strcpy(fw_name, "amdgpu/hawaii_smc.bin");
	}
	break;
	case CHIP_TOPAZ:
	if (((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x81)) \|\|
	((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x83)) \|\|
	((adev->pdev->device == 0x6907) && (adev->pdev->revision == 0x87)) \|\|
	((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0xD1)) \|\|
	((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0xD3))) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/topaz_k_smc.bin");
	} else
	strcpy(fw_name, "amdgpu/topaz_smc.bin");
	break;
	case CHIP_TONGA:
	if (((adev->pdev->device == 0x6939) && (adev->pdev->revision == 0xf1)) \|\|
	((adev->pdev->device == 0x6938) && (adev->pdev->revision == 0xf1))) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/tonga_k_smc.bin");
	} else
	strcpy(fw_name, "amdgpu/tonga_smc.bin");
	break;
	case CHIP_FIJI:
	strcpy(fw_name, "amdgpu/fiji_smc.bin");
	break;
	case CHIP_POLARIS11:
	if (type == CGS_UCODE_ID_SMU) {
	if (ASICID_IS_P21(adev->pdev->device, adev->pdev->revision)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/polaris11_k_smc.bin");
	} else if (ASICID_IS_P31(adev->pdev->device, adev->pdev->revision)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/polaris11_k2_smc.bin");
	} else {
	strcpy(fw_name, "amdgpu/polaris11_smc.bin");
	}
	} else if (type == CGS_UCODE_ID_SMU_SK) {
	strcpy(fw_name, "amdgpu/polaris11_smc_sk.bin");
	}
	break;
	case CHIP_POLARIS10:
	if (type == CGS_UCODE_ID_SMU) {
	if (ASICID_IS_P20(adev->pdev->device, adev->pdev->revision)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/polaris10_k_smc.bin");
	} else if (ASICID_IS_P30(adev->pdev->device, adev->pdev->revision)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/polaris10_k2_smc.bin");
	} else {
	strcpy(fw_name, "amdgpu/polaris10_smc.bin");
	}
	} else if (type == CGS_UCODE_ID_SMU_SK) {
	strcpy(fw_name, "amdgpu/polaris10_smc_sk.bin");
	}
	break;
	case CHIP_POLARIS12:
	if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) {
	info->is_kicker = true;
	strcpy(fw_name, "amdgpu/polaris12_k_smc.bin");
	} else {
	strcpy(fw_name, "amdgpu/polaris12_smc.bin");
	}
	break;
	case CHIP_VEGAM:
	strcpy(fw_name, "amdgpu/vegam_smc.bin");
	break;
	case CHIP_VEGA10:
	if ((adev->pdev->device == 0x687f) &&
	((adev->pdev->revision == 0xc0) \|\|
	(adev->pdev->revision == 0xc1) \|\|
	(adev->pdev->revision == 0xc3)))
	strcpy(fw_name, "amdgpu/vega10_acg_smc.bin");
	else
	strcpy(fw_name, "amdgpu/vega10_smc.bin");
	break;
	case CHIP_VEGA12:
	strcpy(fw_name, "amdgpu/vega12_smc.bin");
	break;
	case CHIP_VEGA20:
	strcpy(fw_name, "amdgpu/vega20_smc.bin");
	break;
	default:
	DRM_ERROR("SMC firmware not supported\n");
	return -EINVAL;
	}

	err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
	if (err) {
	DRM_ERROR("Failed to request firmware\n");
	return err;
	}

	err = amdgpu_ucode_validate(adev->pm.fw);
	if (err) {
	DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
	release_firmware(adev->pm.fw);
	adev->pm.fw = NULL;
	return err;
	}

	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
	ucode = &adev->firmware.ucode[AMDGPU_UCODE_ID_SMC];
	ucode->ucode_id = AMDGPU_UCODE_ID_SMC;
	ucode->fw = adev->pm.fw;
	header = (const struct common_firmware_header *)ucode->fw->data;
	adev->firmware.fw_size +=
	ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
	}
	}

	hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data;
	amdgpu_ucode_print_smc_hdr(&hdr->header);
	adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version);
	ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
	ucode_start_address = le32_to_cpu(hdr->ucode_start_addr);
	src = (const uint8_t *)(adev->pm.fw->data +
	le32_to_cpu(hdr->header.ucode_array_offset_bytes));

	info->version = adev->pm.fw_version;
	info->image_size = ucode_size;
	info->ucode_start_address = ucode_start_address;
	info->kptr = (void *)src;
	}
	return 0;
	}

	static const struct cgs_ops amdgpu_cgs_ops = {
	.read_register = amdgpu_cgs_read_register,
	.write_register = amdgpu_cgs_write_register,
	.read_ind_register = amdgpu_cgs_read_ind_register,
	.write_ind_register = amdgpu_cgs_write_ind_register,
	.get_firmware_info = amdgpu_cgs_get_firmware_info,
	};

	struct cgs_device amdgpu_cgs_create_device(struct amdgpu_device adev)
	{
	struct amdgpu_cgs_device *cgs_device =
	kmalloc(sizeof(*cgs_device), GFP_KERNEL);

	if (!cgs_device) {
	DRM_ERROR("Couldn't allocate CGS device structure\n");
	return NULL;
	}

	cgs_device->base.ops = &amdgpu_cgs_ops;
	cgs_device->adev = adev;

	return (struct cgs_device *)cgs_device;
	}

	void amdgpu_cgs_destroy_device(struct cgs_device *cgs_device)
	{
	kfree(cgs_device);
	}