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

 /*
  * Copyright 2016 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 <drm/amdgpu_drm.h>
 #include "amdgpu.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "atom.h"
 #include "atombios.h"
 #include "soc15_hw_ip.h"

 bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
 {
 	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 						firmwareinfo);
 	uint16_t data_offset;

 	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
 					  NULL, NULL, &data_offset)) {
 		struct atom_firmware_info_v3_1 *firmware_info =
 			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
 							   data_offset);

 		if (le32_to_cpu(firmware_info->firmware_capability) &
 		    ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION)
 			return true;
 	}
 	return false;
 }

 void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
 {
 	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 						firmwareinfo);
 	uint16_t data_offset;

 	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
 					  NULL, NULL, &data_offset)) {
 		struct atom_firmware_info_v3_1 *firmware_info =
 			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
 							   data_offset);

 		adev->bios_scratch_reg_offset =
 			le32_to_cpu(firmware_info->bios_scratch_reg_startaddr);
 	}
 }

 int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
 {
 	struct atom_context *ctx = adev->mode_info.atom_context;
 	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 						vram_usagebyfirmware);
 	struct vram_usagebyfirmware_v2_1 *	firmware_usage;
 	uint32_t start_addr, size;
 	uint16_t data_offset;
 	int usage_bytes = 0;

 	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
 		firmware_usage = (struct vram_usagebyfirmware_v2_1 *)(ctx->bios + data_offset);
 		DRM_DEBUG("atom firmware requested %08x %dkb fw %dkb drv\n",
 			  le32_to_cpu(firmware_usage->start_address_in_kb),
 			  le16_to_cpu(firmware_usage->used_by_firmware_in_kb),
 			  le16_to_cpu(firmware_usage->used_by_driver_in_kb));

 		start_addr = le32_to_cpu(firmware_usage->start_address_in_kb);
 		size = le16_to_cpu(firmware_usage->used_by_firmware_in_kb);

 		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->fw_vram_usage.start_offset = (start_addr &
 				(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
 			adev->fw_vram_usage.size = size << 10;
 			/* Use the default scratch size */
 			usage_bytes = 0;
 		} else {
 			usage_bytes = le16_to_cpu(firmware_usage->used_by_driver_in_kb) << 10;
 		}
 	}
 	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;
 }

 union igp_info {
 	struct atom_integrated_system_info_v1_11 v11;
 };

 union umc_info {
 	struct atom_umc_info_v3_1 v31;
 };

 union vram_info {
 	struct atom_vram_info_header_v2_3 v23;
 	struct atom_vram_info_header_v2_4 v24;
 };

 union vram_module {
 	struct atom_vram_module_v9 v9;
 	struct atom_vram_module_v10 v10;
 };

 static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
 					      int atom_mem_type)
 {
 	int vram_type;

 	if (adev->flags & AMD_IS_APU) {
 		switch (atom_mem_type) {
 		case Ddr2MemType:
 		case LpDdr2MemType:
 			vram_type = AMDGPU_VRAM_TYPE_DDR2;
 			break;
 		case Ddr3MemType:
 		case LpDdr3MemType:
 			vram_type = AMDGPU_VRAM_TYPE_DDR3;
 			break;
 		case Ddr4MemType:
 		case LpDdr4MemType:
 			vram_type = AMDGPU_VRAM_TYPE_DDR4;
 			break;
 		default:
 			vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 			break;
 		}
 	} else {
 		switch (atom_mem_type) {
 		case ATOM_DGPU_VRAM_TYPE_GDDR5:
 			vram_type = AMDGPU_VRAM_TYPE_GDDR5;
 			break;
 		case ATOM_DGPU_VRAM_TYPE_HBM2:
 			vram_type = AMDGPU_VRAM_TYPE_HBM;
 			break;
 		case ATOM_DGPU_VRAM_TYPE_GDDR6:
 			vram_type = AMDGPU_VRAM_TYPE_GDDR6;
 			break;
 		default:
 			vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 			break;
 		}
 	}

 	return vram_type;
 }


 int
 amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
 				  int *vram_width, int *vram_type,
 				  int *vram_vendor)
 {
 	struct amdgpu_mode_info *mode_info = &adev->mode_info;
 	int index, i = 0;
 	u16 data_offset, size;
 	union igp_info *igp_info;
 	union vram_info *vram_info;
 	union vram_module *vram_module;
 	u8 frev, crev;
 	u8 mem_type;
 	u8 mem_vendor;
 	u32 mem_channel_number;
 	u32 mem_channel_width;
 	u32 module_id;

 	if (adev->flags & AMD_IS_APU)
 		index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 						    integratedsysteminfo);
 	else
 		index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 						    vram_info);

 	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
 					  index, &size,
 					  &frev, &crev, &data_offset)) {
 		if (adev->flags & AMD_IS_APU) {
 			igp_info = (union igp_info *)
 				(mode_info->atom_context->bios + data_offset);
 			switch (crev) {
 			case 11:
 			case 12:
 				mem_channel_number = igp_info->v11.umachannelnumber;
 				/* channel width is 64 */
 				if (vram_width)
 					*vram_width = mem_channel_number * 64;
 				mem_type = igp_info->v11.memorytype;
 				if (vram_type)
 					*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
 				break;
 			default:
 				return -EINVAL;
 			}
 		} else {
 			vram_info = (union vram_info *)
 				(mode_info->atom_context->bios + data_offset);
 			module_id = (RREG32(adev->bios_scratch_reg_offset + 4) & 0x00ff0000) >> 16;
 			switch (crev) {
 			case 3:
 				if (module_id > vram_info->v23.vram_module_num)
 					module_id = 0;
 				vram_module = (union vram_module *)vram_info->v23.vram_module;
 				while (i < module_id) {
 					vram_module = (union vram_module *)
 						((u8 *)vram_module + vram_module->v9.vram_module_size);
 					i++;
 				}
 				mem_type = vram_module->v9.memory_type;
 				if (vram_type)
 					*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
 				mem_channel_number = vram_module->v9.channel_num;
 				mem_channel_width = vram_module->v9.channel_width;
 				if (vram_width)
 					*vram_width = mem_channel_number * (1 << mem_channel_width);
 				mem_vendor = (vram_module->v9.vender_rev_id) & 0xF;
 				if (vram_vendor)
 					*vram_vendor = mem_vendor;
 				break;
 			case 4:
 				if (module_id > vram_info->v24.vram_module_num)
 					module_id = 0;
 				vram_module = (union vram_module *)vram_info->v24.vram_module;
 				while (i < module_id) {
 					vram_module = (union vram_module *)
 						((u8 *)vram_module + vram_module->v10.vram_module_size);
 					i++;
 				}
 				mem_type = vram_module->v10.memory_type;
 				if (vram_type)
 					*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
 				mem_channel_number = vram_module->v10.channel_num;
 				mem_channel_width = vram_module->v10.channel_width;
 				if (vram_width)
 					*vram_width = mem_channel_number * (1 << mem_channel_width);
 				mem_vendor = (vram_module->v10.vender_rev_id) & 0xF;
 				if (vram_vendor)
 					*vram_vendor = mem_vendor;
 				break;
 			default:
 				return -EINVAL;
 			}
 		}

 	}

 	return 0;
 }

 /*
  * Return true if vbios enabled ecc by default, if umc info table is available
  * or false if ecc is not enabled or umc info table is not available
  */
 bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev)
 {
 	struct amdgpu_mode_info *mode_info = &adev->mode_info;
 	int index;
 	u16 data_offset, size;
 	union umc_info *umc_info;
 	u8 frev, crev;
 	bool ecc_default_enabled = false;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 			umc_info);

 	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
 				index, &size, &frev, &crev, &data_offset)) {
 		/* support umc_info 3.1+ */
 		if ((frev == 3 && crev >= 1) || (frev > 3)) {
 			umc_info = (union umc_info *)
 				(mode_info->atom_context->bios + data_offset);
 			ecc_default_enabled =
 				(le32_to_cpu(umc_info->v31.umc_config) &
 				 UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ? true : false;
 		}
 	}

 	return ecc_default_enabled;
 }

 union firmware_info {
 	struct atom_firmware_info_v3_1 v31;
 };

 /*
  * Return true if vbios supports sram ecc or false if not
  */
 bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev)
 {
 	struct amdgpu_mode_info *mode_info = &adev->mode_info;
 	int index;
 	u16 data_offset, size;
 	union firmware_info *firmware_info;
 	u8 frev, crev;
 	bool sram_ecc_supported = false;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 			firmwareinfo);

 	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
 				index, &size, &frev, &crev, &data_offset)) {
 		/* support firmware_info 3.1 + */
 		if ((frev == 3 && crev >=1) || (frev > 3)) {
 			firmware_info = (union firmware_info *)
 				(mode_info->atom_context->bios + data_offset);
 			sram_ecc_supported =
 				(le32_to_cpu(firmware_info->v31.firmware_capability) &
 				 ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false;
 		}
 	}

 	return sram_ecc_supported;
 }

 union smu_info {
 	struct atom_smu_info_v3_1 v31;
 };

 int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
 {
 	struct amdgpu_mode_info *mode_info = &adev->mode_info;
 	struct amdgpu_pll *spll = &adev->clock.spll;
 	struct amdgpu_pll *mpll = &adev->clock.mpll;
 	uint8_t frev, crev;
 	uint16_t data_offset;
 	int ret = -EINVAL, index;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    firmwareinfo);
 	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 				   &frev, &crev, &data_offset)) {
 		union firmware_info *firmware_info =
 			(union firmware_info *)(mode_info->atom_context->bios +
 						data_offset);

 		adev->clock.default_sclk =
 			le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz);
 		adev->clock.default_mclk =
 			le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz);

 		adev->pm.current_sclk = adev->clock.default_sclk;
 		adev->pm.current_mclk = adev->clock.default_mclk;

 		/* not technically a clock, but... */
 		adev->mode_info.firmware_flags =
 			le32_to_cpu(firmware_info->v31.firmware_capability);

 		ret = 0;
 	}

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    smu_info);
 	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 				   &frev, &crev, &data_offset)) {
 		union smu_info *smu_info =
 			(union smu_info *)(mode_info->atom_context->bios +
 					   data_offset);

 		/* system clock */
 		spll->reference_freq = le32_to_cpu(smu_info->v31.core_refclk_10khz);

 		spll->reference_div = 0;
 		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;

 		ret = 0;
 	}

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    umc_info);
 	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 				   &frev, &crev, &data_offset)) {
 		union umc_info *umc_info =
 			(union umc_info *)(mode_info->atom_context->bios +
 					   data_offset);

 		/* memory clock */
 		mpll->reference_freq = le32_to_cpu(umc_info->v31.mem_refclk_10khz);

 		mpll->reference_div = 0;
 		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;

 		ret = 0;
 	}

 	return ret;
 }

 union gfx_info {
 	struct  atom_gfx_info_v2_4 v24;
 };

 int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev)
 {
 	struct amdgpu_mode_info *mode_info = &adev->mode_info;
 	int index;
 	uint8_t frev, crev;
 	uint16_t data_offset;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    gfx_info);
 	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);
 		switch (crev) {
 		case 4:
 			adev->gfx.config.max_shader_engines = gfx_info->v24.max_shader_engines;
 			adev->gfx.config.max_cu_per_sh = gfx_info->v24.max_cu_per_sh;
 			adev->gfx.config.max_sh_per_se = gfx_info->v24.max_sh_per_se;
 			adev->gfx.config.max_backends_per_se = gfx_info->v24.max_backends_per_se;
 			adev->gfx.config.max_texture_channel_caches = gfx_info->v24.max_texture_channel_caches;
 			adev->gfx.config.max_gprs = le16_to_cpu(gfx_info->v24.gc_num_gprs);
 			adev->gfx.config.max_gs_threads = gfx_info->v24.gc_num_max_gs_thds;
 			adev->gfx.config.gs_vgt_table_depth = gfx_info->v24.gc_gs_table_depth;
 			adev->gfx.config.gs_prim_buffer_depth =
 				le16_to_cpu(gfx_info->v24.gc_gsprim_buff_depth);
 			adev->gfx.config.double_offchip_lds_buf =
 				gfx_info->v24.gc_double_offchip_lds_buffer;
 			adev->gfx.cu_info.wave_front_size = le16_to_cpu(gfx_info->v24.gc_wave_size);
 			adev->gfx.cu_info.max_waves_per_simd = le16_to_cpu(gfx_info->v24.gc_max_waves_per_simd);
 			adev->gfx.cu_info.max_scratch_slots_per_cu = gfx_info->v24.gc_max_scratch_slots_per_cu;
 			adev->gfx.cu_info.lds_size = le16_to_cpu(gfx_info->v24.gc_lds_size);
 			return 0;
 		default:
 			return -EINVAL;
 		}

 	}
 	return -EINVAL;
 }

 /*
  * Check if VBIOS supports GDDR6 training data save/restore
  */
 static bool gddr6_mem_train_vbios_support(struct amdgpu_device *adev)
 {
 	uint16_t data_offset;
 	int index;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    firmwareinfo);
 	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
 					  NULL, NULL, &data_offset)) {
 		struct atom_firmware_info_v3_1 *firmware_info =
 			(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
 							   data_offset);

 		DRM_DEBUG("atom firmware capability:0x%08x.\n",
 			  le32_to_cpu(firmware_info->firmware_capability));

 		if (le32_to_cpu(firmware_info->firmware_capability) &
 		    ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING)
 			return true;
 	}

 	return false;
 }

 static int gddr6_mem_train_support(struct amdgpu_device *adev)
 {
 	int ret;
 	uint32_t major, minor, revision, hw_v;

 	if (gddr6_mem_train_vbios_support(adev)) {
 		amdgpu_discovery_get_ip_version(adev, MP0_HWID, &major, &minor, &revision);
 		hw_v = HW_REV(major, minor, revision);
 		/*
 		 * treat 0 revision as a special case since register for MP0 and MMHUB is missing
 		 * for some Navi10 A0, preventing driver from discovering the hwip information since
 		 * none of the functions will be initialized, it should not cause any problems
 		 */
 		switch (hw_v) {
 		case HW_REV(11, 0, 0):
 		case HW_REV(11, 0, 5):
 			ret = 1;
 			break;
 		default:
 			DRM_ERROR("memory training vbios supports but psp hw(%08x)"
 				  " doesn't support!\n", hw_v);
 			ret = -1;
 			break;
 		}
 	} else {
 		ret = 0;
 		hw_v = -1;
 	}


 	DRM_DEBUG("mp0 hw_v %08x, ret:%d.\n", hw_v, ret);
 	return ret;
 }

 int amdgpu_atomfirmware_get_mem_train_info(struct amdgpu_device *adev)
 {
 	struct atom_context *ctx = adev->mode_info.atom_context;
 	int index;
 	uint8_t frev, crev;
 	uint16_t data_offset, size;
 	int ret;

 	adev->fw_vram_usage.mem_train_support = false;

 	if (adev->asic_type != CHIP_NAVI10 &&
 	    adev->asic_type != CHIP_NAVI14)
 		return 0;

 	if (amdgpu_sriov_vf(adev))
 		return 0;

 	ret = gddr6_mem_train_support(adev);
 	if (ret == -1)
 		return -EINVAL;
 	else if (ret == 0)
 		return 0;

 	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
 					    vram_usagebyfirmware);
 	ret = amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev,
 					    &data_offset);
 	if (ret == 0) {
 		DRM_ERROR("parse data header failed.\n");
 		return -EINVAL;
 	}

 	DRM_DEBUG("atom firmware common table header size:0x%04x, frev:0x%02x,"
 		  " crev:0x%02x, data_offset:0x%04x.\n", size, frev, crev, data_offset);
 	/* only support 2.1+ */
 	if (((uint16_t)frev << 8 | crev) < 0x0201) {
 		DRM_ERROR("frev:0x%02x, crev:0x%02x < 2.1 !\n", frev, crev);
 		return -EINVAL;
 	}

 	adev->fw_vram_usage.mem_train_support = true;
 	return 0;
 }
	/*
	* Copyright 2016 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 <drm/amdgpu_drm.h>
	#include "amdgpu.h"
	#include "atomfirmware.h"
	#include "amdgpu_atomfirmware.h"
	#include "atom.h"
	#include "atombios.h"
	#include "soc15_hw_ip.h"

	bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
	{
	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	firmwareinfo);
	uint16_t data_offset;

	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
	NULL, NULL, &data_offset)) {
	struct atom_firmware_info_v3_1 *firmware_info =
	(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
	data_offset);

	if (le32_to_cpu(firmware_info->firmware_capability) &
	ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION)
	return true;
	}
	return false;
	}

	void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
	{
	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	firmwareinfo);
	uint16_t data_offset;

	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
	NULL, NULL, &data_offset)) {
	struct atom_firmware_info_v3_1 *firmware_info =
	(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
	data_offset);

	adev->bios_scratch_reg_offset =
	le32_to_cpu(firmware_info->bios_scratch_reg_startaddr);
	}
	}

	int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
	{
	struct atom_context *ctx = adev->mode_info.atom_context;
	int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	vram_usagebyfirmware);
	struct vram_usagebyfirmware_v2_1 * firmware_usage;
	uint32_t start_addr, size;
	uint16_t data_offset;
	int usage_bytes = 0;

	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
	firmware_usage = (struct vram_usagebyfirmware_v2_1 *)(ctx->bios + data_offset);
	DRM_DEBUG("atom firmware requested %08x %dkb fw %dkb drv\n",
	le32_to_cpu(firmware_usage->start_address_in_kb),
	le16_to_cpu(firmware_usage->used_by_firmware_in_kb),
	le16_to_cpu(firmware_usage->used_by_driver_in_kb));

	start_addr = le32_to_cpu(firmware_usage->start_address_in_kb);
	size = le16_to_cpu(firmware_usage->used_by_firmware_in_kb);

	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->fw_vram_usage.start_offset = (start_addr &
	(~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
	adev->fw_vram_usage.size = size << 10;
	/* Use the default scratch size */
	usage_bytes = 0;
	} else {
	usage_bytes = le16_to_cpu(firmware_usage->used_by_driver_in_kb) << 10;
	}
	}
	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;
	}

	union igp_info {
	struct atom_integrated_system_info_v1_11 v11;
	};

	union umc_info {
	struct atom_umc_info_v3_1 v31;
	};

	union vram_info {
	struct atom_vram_info_header_v2_3 v23;
	struct atom_vram_info_header_v2_4 v24;
	};

	union vram_module {
	struct atom_vram_module_v9 v9;
	struct atom_vram_module_v10 v10;
	};

	static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
	int atom_mem_type)
	{
	int vram_type;

	if (adev->flags & AMD_IS_APU) {
	switch (atom_mem_type) {
	case Ddr2MemType:
	case LpDdr2MemType:
	vram_type = AMDGPU_VRAM_TYPE_DDR2;
	break;
	case Ddr3MemType:
	case LpDdr3MemType:
	vram_type = AMDGPU_VRAM_TYPE_DDR3;
	break;
	case Ddr4MemType:
	case LpDdr4MemType:
	vram_type = AMDGPU_VRAM_TYPE_DDR4;
	break;
	default:
	vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
	break;
	}
	} else {
	switch (atom_mem_type) {
	case ATOM_DGPU_VRAM_TYPE_GDDR5:
	vram_type = AMDGPU_VRAM_TYPE_GDDR5;
	break;
	case ATOM_DGPU_VRAM_TYPE_HBM2:
	vram_type = AMDGPU_VRAM_TYPE_HBM;
	break;
	case ATOM_DGPU_VRAM_TYPE_GDDR6:
	vram_type = AMDGPU_VRAM_TYPE_GDDR6;
	break;
	default:
	vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
	break;
	}
	}

	return vram_type;
	}


	int
	amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
	int vram_width, int vram_type,
	int *vram_vendor)
	{
	struct amdgpu_mode_info *mode_info = &adev->mode_info;
	int index, i = 0;
	u16 data_offset, size;
	union igp_info *igp_info;
	union vram_info *vram_info;
	union vram_module *vram_module;
	u8 frev, crev;
	u8 mem_type;
	u8 mem_vendor;
	u32 mem_channel_number;
	u32 mem_channel_width;
	u32 module_id;

	if (adev->flags & AMD_IS_APU)
	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	integratedsysteminfo);
	else
	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	vram_info);

	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
	index, &size,
	&frev, &crev, &data_offset)) {
	if (adev->flags & AMD_IS_APU) {
	igp_info = (union igp_info *)
	(mode_info->atom_context->bios + data_offset);
	switch (crev) {
	case 11:
	case 12:
	mem_channel_number = igp_info->v11.umachannelnumber;
	/* channel width is 64 */
	if (vram_width)
	vram_width = mem_channel_number 64;
	mem_type = igp_info->v11.memorytype;
	if (vram_type)
	*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
	break;
	default:
	return -EINVAL;
	}
	} else {
	vram_info = (union vram_info *)
	(mode_info->atom_context->bios + data_offset);
	module_id = (RREG32(adev->bios_scratch_reg_offset + 4) & 0x00ff0000) >> 16;
	switch (crev) {
	case 3:
	if (module_id > vram_info->v23.vram_module_num)
	module_id = 0;
	vram_module = (union vram_module *)vram_info->v23.vram_module;
	while (i < module_id) {
	vram_module = (union vram_module *)
	((u8 *)vram_module + vram_module->v9.vram_module_size);
	i++;
	}
	mem_type = vram_module->v9.memory_type;
	if (vram_type)
	*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
	mem_channel_number = vram_module->v9.channel_num;
	mem_channel_width = vram_module->v9.channel_width;
	if (vram_width)
	vram_width = mem_channel_number (1 << mem_channel_width);
	mem_vendor = (vram_module->v9.vender_rev_id) & 0xF;
	if (vram_vendor)
	*vram_vendor = mem_vendor;
	break;
	case 4:
	if (module_id > vram_info->v24.vram_module_num)
	module_id = 0;
	vram_module = (union vram_module *)vram_info->v24.vram_module;
	while (i < module_id) {
	vram_module = (union vram_module *)
	((u8 *)vram_module + vram_module->v10.vram_module_size);
	i++;
	}
	mem_type = vram_module->v10.memory_type;
	if (vram_type)
	*vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type);
	mem_channel_number = vram_module->v10.channel_num;
	mem_channel_width = vram_module->v10.channel_width;
	if (vram_width)
	vram_width = mem_channel_number (1 << mem_channel_width);
	mem_vendor = (vram_module->v10.vender_rev_id) & 0xF;
	if (vram_vendor)
	*vram_vendor = mem_vendor;
	break;
	default:
	return -EINVAL;
	}
	}

	}

	return 0;
	}

	/*
	* Return true if vbios enabled ecc by default, if umc info table is available
	* or false if ecc is not enabled or umc info table is not available
	*/
	bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev)
	{
	struct amdgpu_mode_info *mode_info = &adev->mode_info;
	int index;
	u16 data_offset, size;
	union umc_info *umc_info;
	u8 frev, crev;
	bool ecc_default_enabled = false;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	umc_info);

	if (amdgpu_atom_parse_data_header(mode_info->atom_context,
	index, &size, &frev, &crev, &data_offset)) {
	/* support umc_info 3.1+ */
	if ((frev == 3 && crev >= 1) \|\| (frev > 3)) {
	umc_info = (union umc_info *)
	(mode_info->atom_context->bios + data_offset);
	ecc_default_enabled =
	(le32_to_cpu(umc_info->v31.umc_config) &
	UMC_CONFIG__DEFAULT_MEM_ECC_ENABLE) ? true : false;
	}
	}

	return ecc_default_enabled;
	}

	union firmware_info {
	struct atom_firmware_info_v3_1 v31;
	};

	/*
	* Return true if vbios supports sram ecc or false if not
	*/
	bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev)
	{
	struct amdgpu_mode_info *mode_info = &adev->mode_info;
	int index;
	u16 data_offset, size;
	union firmware_info *firmware_info;
	u8 frev, crev;
	bool sram_ecc_supported = false;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	firmwareinfo);

	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
	index, &size, &frev, &crev, &data_offset)) {
	/* support firmware_info 3.1 + */
	if ((frev == 3 && crev >=1) \|\| (frev > 3)) {
	firmware_info = (union firmware_info *)
	(mode_info->atom_context->bios + data_offset);
	sram_ecc_supported =
	(le32_to_cpu(firmware_info->v31.firmware_capability) &
	ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false;
	}
	}

	return sram_ecc_supported;
	}

	union smu_info {
	struct atom_smu_info_v3_1 v31;
	};

	int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
	{
	struct amdgpu_mode_info *mode_info = &adev->mode_info;
	struct amdgpu_pll *spll = &adev->clock.spll;
	struct amdgpu_pll *mpll = &adev->clock.mpll;
	uint8_t frev, crev;
	uint16_t data_offset;
	int ret = -EINVAL, index;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	firmwareinfo);
	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
	&frev, &crev, &data_offset)) {
	union firmware_info *firmware_info =
	(union firmware_info *)(mode_info->atom_context->bios +
	data_offset);

	adev->clock.default_sclk =
	le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz);
	adev->clock.default_mclk =
	le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz);

	adev->pm.current_sclk = adev->clock.default_sclk;
	adev->pm.current_mclk = adev->clock.default_mclk;

	/* not technically a clock, but... */
	adev->mode_info.firmware_flags =
	le32_to_cpu(firmware_info->v31.firmware_capability);

	ret = 0;
	}

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	smu_info);
	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
	&frev, &crev, &data_offset)) {
	union smu_info *smu_info =
	(union smu_info *)(mode_info->atom_context->bios +
	data_offset);

	/* system clock */
	spll->reference_freq = le32_to_cpu(smu_info->v31.core_refclk_10khz);

	spll->reference_div = 0;
	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;

	ret = 0;
	}

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	umc_info);
	if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
	&frev, &crev, &data_offset)) {
	union umc_info *umc_info =
	(union umc_info *)(mode_info->atom_context->bios +
	data_offset);

	/* memory clock */
	mpll->reference_freq = le32_to_cpu(umc_info->v31.mem_refclk_10khz);

	mpll->reference_div = 0;
	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;

	ret = 0;
	}

	return ret;
	}

	union gfx_info {
	struct atom_gfx_info_v2_4 v24;
	};

	int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev)
	{
	struct amdgpu_mode_info *mode_info = &adev->mode_info;
	int index;
	uint8_t frev, crev;
	uint16_t data_offset;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	gfx_info);
	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);
	switch (crev) {
	case 4:
	adev->gfx.config.max_shader_engines = gfx_info->v24.max_shader_engines;
	adev->gfx.config.max_cu_per_sh = gfx_info->v24.max_cu_per_sh;
	adev->gfx.config.max_sh_per_se = gfx_info->v24.max_sh_per_se;
	adev->gfx.config.max_backends_per_se = gfx_info->v24.max_backends_per_se;
	adev->gfx.config.max_texture_channel_caches = gfx_info->v24.max_texture_channel_caches;
	adev->gfx.config.max_gprs = le16_to_cpu(gfx_info->v24.gc_num_gprs);
	adev->gfx.config.max_gs_threads = gfx_info->v24.gc_num_max_gs_thds;
	adev->gfx.config.gs_vgt_table_depth = gfx_info->v24.gc_gs_table_depth;
	adev->gfx.config.gs_prim_buffer_depth =
	le16_to_cpu(gfx_info->v24.gc_gsprim_buff_depth);
	adev->gfx.config.double_offchip_lds_buf =
	gfx_info->v24.gc_double_offchip_lds_buffer;
	adev->gfx.cu_info.wave_front_size = le16_to_cpu(gfx_info->v24.gc_wave_size);
	adev->gfx.cu_info.max_waves_per_simd = le16_to_cpu(gfx_info->v24.gc_max_waves_per_simd);
	adev->gfx.cu_info.max_scratch_slots_per_cu = gfx_info->v24.gc_max_scratch_slots_per_cu;
	adev->gfx.cu_info.lds_size = le16_to_cpu(gfx_info->v24.gc_lds_size);
	return 0;
	default:
	return -EINVAL;
	}

	}
	return -EINVAL;
	}

	/*
	* Check if VBIOS supports GDDR6 training data save/restore
	*/
	static bool gddr6_mem_train_vbios_support(struct amdgpu_device *adev)
	{
	uint16_t data_offset;
	int index;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	firmwareinfo);
	if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
	NULL, NULL, &data_offset)) {
	struct atom_firmware_info_v3_1 *firmware_info =
	(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
	data_offset);

	DRM_DEBUG("atom firmware capability:0x%08x.\n",
	le32_to_cpu(firmware_info->firmware_capability));

	if (le32_to_cpu(firmware_info->firmware_capability) &
	ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING)
	return true;
	}

	return false;
	}

	static int gddr6_mem_train_support(struct amdgpu_device *adev)
	{
	int ret;
	uint32_t major, minor, revision, hw_v;

	if (gddr6_mem_train_vbios_support(adev)) {
	amdgpu_discovery_get_ip_version(adev, MP0_HWID, &major, &minor, &revision);
	hw_v = HW_REV(major, minor, revision);
	/*
	* treat 0 revision as a special case since register for MP0 and MMHUB is missing
	* for some Navi10 A0, preventing driver from discovering the hwip information since
	* none of the functions will be initialized, it should not cause any problems
	*/
	switch (hw_v) {
	case HW_REV(11, 0, 0):
	case HW_REV(11, 0, 5):
	ret = 1;
	break;
	default:
	DRM_ERROR("memory training vbios supports but psp hw(%08x)"
	" doesn't support!\n", hw_v);
	ret = -1;
	break;
	}
	} else {
	ret = 0;
	hw_v = -1;
	}


	DRM_DEBUG("mp0 hw_v %08x, ret:%d.\n", hw_v, ret);
	return ret;
	}

	int amdgpu_atomfirmware_get_mem_train_info(struct amdgpu_device *adev)
	{
	struct atom_context *ctx = adev->mode_info.atom_context;
	int index;
	uint8_t frev, crev;
	uint16_t data_offset, size;
	int ret;

	adev->fw_vram_usage.mem_train_support = false;

	if (adev->asic_type != CHIP_NAVI10 &&
	adev->asic_type != CHIP_NAVI14)
	return 0;

	if (amdgpu_sriov_vf(adev))
	return 0;

	ret = gddr6_mem_train_support(adev);
	if (ret == -1)
	return -EINVAL;
	else if (ret == 0)
	return 0;

	index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
	vram_usagebyfirmware);
	ret = amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev,
	&data_offset);
	if (ret == 0) {
	DRM_ERROR("parse data header failed.\n");
	return -EINVAL;
	}

	DRM_DEBUG("atom firmware common table header size:0x%04x, frev:0x%02x,"
	" crev:0x%02x, data_offset:0x%04x.\n", size, frev, crev, data_offset);
	/* only support 2.1+ */
	if (((uint16_t)frev << 8 \| crev) < 0x0201) {
	DRM_ERROR("frev:0x%02x, crev:0x%02x < 2.1 !\n", frev, crev);
	return -EINVAL;
	}

	adev->fw_vram_usage.mem_train_support = true;
	return 0;
	}