drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h - 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.
  *
  * Author: Monk.liu@amd.com
  */
 #ifndef AMDGPU_VIRT_H
 #define AMDGPU_VIRT_H

 #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS  (1 << 0) /* vBIOS is sr-iov ready */
 #define AMDGPU_SRIOV_CAPS_ENABLE_IOV   (1 << 1) /* sr-iov is enabled on this GPU */
 #define AMDGPU_SRIOV_CAPS_IS_VF        (1 << 2) /* this GPU is a virtual function */
 #define AMDGPU_PASSTHROUGH_MODE        (1 << 3) /* thw whole GPU is pass through for VM */
 #define AMDGPU_SRIOV_CAPS_RUNTIME      (1 << 4) /* is out of full access mode */

 struct amdgpu_mm_table {
 	struct amdgpu_bo	*bo;
 	uint32_t		*cpu_addr;
 	uint64_t		gpu_addr;
 };

 #define AMDGPU_VF_ERROR_ENTRY_SIZE    16

 /* struct error_entry - amdgpu VF error information. */
 struct amdgpu_vf_error_buffer {
 	struct mutex lock;
 	int read_count;
 	int write_count;
 	uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
 	uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
 	uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
 };

 /**
  * struct amdgpu_virt_ops - amdgpu device virt operations
  */
 struct amdgpu_virt_ops {
 	int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
 	int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
 	int (*reset_gpu)(struct amdgpu_device *adev);
 	int (*wait_reset)(struct amdgpu_device *adev);
 	void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3);
 	int (*get_pp_clk)(struct amdgpu_device *adev, u32 type, char *buf);
 	int (*force_dpm_level)(struct amdgpu_device *adev, u32 level);
 };

 /*
  * Firmware Reserve Frame buffer
  */
 struct amdgpu_virt_fw_reserve {
 	struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
 	struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
 	unsigned int checksum_key;
 };
 /*
  * Defination between PF and VF
  * Structures forcibly aligned to 4 to keep the same style as PF.
  */
 #define AMDGIM_DATAEXCHANGE_OFFSET		(64 * 1024)

 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
 		(total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))

 enum AMDGIM_FEATURE_FLAG {
 	/* GIM supports feature of Error log collecting */
 	AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
 	/* GIM supports feature of loading uCodes */
 	AMDGIM_FEATURE_GIM_LOAD_UCODES   = 0x2,
 	/* VRAM LOST by GIM */
 	AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
 	/* HW PERF SIM in GIM */
 	AMDGIM_FEATURE_HW_PERF_SIMULATION = (1 << 3),
 };

 struct amd_sriov_msg_pf2vf_info_header {
 	/* the total structure size in byte. */
 	uint32_t size;
 	/* version of this structure, written by the GIM */
 	uint32_t version;
 	/* reserved */
 	uint32_t reserved[2];
 } __aligned(4);
 struct  amdgim_pf2vf_info_v1 {
 	/* header contains size and version */
 	struct amd_sriov_msg_pf2vf_info_header header;
 	/* max_width * max_height */
 	unsigned int uvd_enc_max_pixels_count;
 	/* 16x16 pixels/sec, codec independent */
 	unsigned int uvd_enc_max_bandwidth;
 	/* max_width * max_height */
 	unsigned int vce_enc_max_pixels_count;
 	/* 16x16 pixels/sec, codec independent */
 	unsigned int vce_enc_max_bandwidth;
 	/* MEC FW position in kb from the start of visible frame buffer */
 	unsigned int mecfw_kboffset;
 	/* The features flags of the GIM driver supports. */
 	unsigned int feature_flags;
 	/* use private key from mailbox 2 to create chueksum */
 	unsigned int checksum;
 } __aligned(4);

 struct  amdgim_pf2vf_info_v2 {
 	/* header contains size and version */
 	struct amd_sriov_msg_pf2vf_info_header header;
 	/* use private key from mailbox 2 to create chueksum */
 	uint32_t checksum;
 	/* The features flags of the GIM driver supports. */
 	uint32_t feature_flags;
 	/* max_width * max_height */
 	uint32_t uvd_enc_max_pixels_count;
 	/* 16x16 pixels/sec, codec independent */
 	uint32_t uvd_enc_max_bandwidth;
 	/* max_width * max_height */
 	uint32_t vce_enc_max_pixels_count;
 	/* 16x16 pixels/sec, codec independent */
 	uint32_t vce_enc_max_bandwidth;
 	/* MEC FW position in kb from the start of VF visible frame buffer */
 	uint64_t mecfw_kboffset;
 	/* MEC FW size in KB */
 	uint32_t mecfw_ksize;
 	/* UVD FW position in kb from the start of VF visible frame buffer */
 	uint64_t uvdfw_kboffset;
 	/* UVD FW size in KB */
 	uint32_t uvdfw_ksize;
 	/* VCE FW position in kb from the start of VF visible frame buffer */
 	uint64_t vcefw_kboffset;
 	/* VCE FW size in KB */
 	uint32_t vcefw_ksize;
 	uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 0, 0, (9 + sizeof(struct amd_sriov_msg_pf2vf_info_header)/sizeof(uint32_t)), 3)];
 } __aligned(4);


 struct amd_sriov_msg_vf2pf_info_header {
 	/* the total structure size in byte. */
 	uint32_t size;
 	/*version of this structure, written by the guest */
 	uint32_t version;
 	/* reserved */
 	uint32_t reserved[2];
 } __aligned(4);

 struct amdgim_vf2pf_info_v1 {
 	/* header contains size and version */
 	struct amd_sriov_msg_vf2pf_info_header header;
 	/* driver version */
 	char driver_version[64];
 	/* driver certification, 1=WHQL, 0=None */
 	unsigned int driver_cert;
 	/* guest OS type and version: need a define */
 	unsigned int os_info;
 	/* in the unit of 1M */
 	unsigned int fb_usage;
 	/* guest gfx engine usage percentage */
 	unsigned int gfx_usage;
 	/* guest gfx engine health percentage */
 	unsigned int gfx_health;
 	/* guest compute engine usage percentage */
 	unsigned int compute_usage;
 	/* guest compute engine health percentage */
 	unsigned int compute_health;
 	/* guest vce engine usage percentage. 0xffff means N/A. */
 	unsigned int vce_enc_usage;
 	/* guest vce engine health percentage. 0xffff means N/A. */
 	unsigned int vce_enc_health;
 	/* guest uvd engine usage percentage. 0xffff means N/A. */
 	unsigned int uvd_enc_usage;
 	/* guest uvd engine usage percentage. 0xffff means N/A. */
 	unsigned int uvd_enc_health;
 	unsigned int checksum;
 } __aligned(4);

 struct amdgim_vf2pf_info_v2 {
 	/* header contains size and version */
 	struct amd_sriov_msg_vf2pf_info_header header;
 	uint32_t checksum;
 	/* driver version */
 	uint8_t driver_version[64];
 	/* driver certification, 1=WHQL, 0=None */
 	uint32_t driver_cert;
 	/* guest OS type and version: need a define */
 	uint32_t os_info;
 	/* in the unit of 1M */
 	uint32_t fb_usage;
 	/* guest gfx engine usage percentage */
 	uint32_t gfx_usage;
 	/* guest gfx engine health percentage */
 	uint32_t gfx_health;
 	/* guest compute engine usage percentage */
 	uint32_t compute_usage;
 	/* guest compute engine health percentage */
 	uint32_t compute_health;
 	/* guest vce engine usage percentage. 0xffff means N/A. */
 	uint32_t vce_enc_usage;
 	/* guest vce engine health percentage. 0xffff means N/A. */
 	uint32_t vce_enc_health;
 	/* guest uvd engine usage percentage. 0xffff means N/A. */
 	uint32_t uvd_enc_usage;
 	/* guest uvd engine usage percentage. 0xffff means N/A. */
 	uint32_t uvd_enc_health;
 	uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
 } __aligned(4);

 #define AMDGPU_FW_VRAM_VF2PF_VER 2
 typedef struct amdgim_vf2pf_info_v2 amdgim_vf2pf_info ;

 #define AMDGPU_FW_VRAM_VF2PF_WRITE(adev, field, val) \
 	do { \
 		((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field = (val); \
 	} while (0)

 #define AMDGPU_FW_VRAM_VF2PF_READ(adev, field, val) \
 	do { \
 		(*val) = ((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field; \
 	} while (0)

 #define AMDGPU_FW_VRAM_PF2VF_READ(adev, field, val) \
 	do { \
 		if (!adev->virt.fw_reserve.p_pf2vf) \
 			*(val) = 0; \
 		else { \
 			if (adev->virt.fw_reserve.p_pf2vf->version == 1) \
 				*(val) = ((struct amdgim_pf2vf_info_v1 *)adev->virt.fw_reserve.p_pf2vf)->field; \
 			if (adev->virt.fw_reserve.p_pf2vf->version == 2) \
 				*(val) = ((struct amdgim_pf2vf_info_v2 *)adev->virt.fw_reserve.p_pf2vf)->field; \
 		} \
 	} while (0)

 /* GPU virtualization */
 struct amdgpu_virt {
 	uint32_t			caps;
 	struct amdgpu_bo		*csa_obj;
 	void				*csa_cpu_addr;
 	bool chained_ib_support;
 	uint32_t			reg_val_offs;
 	struct amdgpu_irq_src		ack_irq;
 	struct amdgpu_irq_src		rcv_irq;
 	struct work_struct		flr_work;
 	struct amdgpu_mm_table		mm_table;
 	const struct amdgpu_virt_ops	*ops;
 	struct amdgpu_vf_error_buffer   vf_errors;
 	struct amdgpu_virt_fw_reserve	fw_reserve;
 	uint32_t gim_feature;
 	/* protect DPM events to GIM */
 	struct mutex                    dpm_mutex;
 	uint32_t reg_access_mode;
 };

 #define amdgpu_sriov_enabled(adev) \
 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)

 #define amdgpu_sriov_vf(adev) \
 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)

 #define amdgpu_sriov_bios(adev) \
 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)

 #define amdgpu_sriov_runtime(adev) \
 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)

 #define amdgpu_passthrough(adev) \
 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)

 static inline bool is_virtual_machine(void)
 {
 #ifdef CONFIG_X86
 	return boot_cpu_has(X86_FEATURE_HYPERVISOR);
 #else
 	return false;
 #endif
 }

 #define amdgim_is_hwperf(adev) \
 	((adev)->virt.gim_feature & AMDGIM_FEATURE_HW_PERF_SIMULATION)

 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
 uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg);
 void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v);
 void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
 					uint32_t reg0, uint32_t rreg1,
 					uint32_t ref, uint32_t mask);
 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
 int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
 int amdgpu_virt_fw_reserve_get_checksum(void *obj, unsigned long obj_size,
 					unsigned int key,
 					unsigned int chksum);
 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
 uint32_t amdgpu_virt_get_sclk(struct amdgpu_device *adev, bool lowest);
 uint32_t amdgpu_virt_get_mclk(struct amdgpu_device *adev, bool lowest);
 #endif
	/*
	* 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.
	*
	* Author: Monk.liu@amd.com
	*/
	#ifndef AMDGPU_VIRT_H
	#define AMDGPU_VIRT_H

	#define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */
	#define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */
	#define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */
	#define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */
	#define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */

	struct amdgpu_mm_table {
	struct amdgpu_bo *bo;
	uint32_t *cpu_addr;
	uint64_t gpu_addr;
	};

	#define AMDGPU_VF_ERROR_ENTRY_SIZE 16

	/* struct error_entry - amdgpu VF error information. */
	struct amdgpu_vf_error_buffer {
	struct mutex lock;
	int read_count;
	int write_count;
	uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
	uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
	uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
	};

	/**
	* struct amdgpu_virt_ops - amdgpu device virt operations
	*/
	struct amdgpu_virt_ops {
	int (req_full_gpu)(struct amdgpu_device adev, bool init);
	int (rel_full_gpu)(struct amdgpu_device adev, bool init);
	int (reset_gpu)(struct amdgpu_device adev);
	int (wait_reset)(struct amdgpu_device adev);
	void (trans_msg)(struct amdgpu_device adev, u32 req, u32 data1, u32 data2, u32 data3);
	int (get_pp_clk)(struct amdgpu_device adev, u32 type, char *buf);
	int (force_dpm_level)(struct amdgpu_device adev, u32 level);
	};

	/*
	* Firmware Reserve Frame buffer
	*/
	struct amdgpu_virt_fw_reserve {
	struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
	struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
	unsigned int checksum_key;
	};
	/*
	* Defination between PF and VF
	* Structures forcibly aligned to 4 to keep the same style as PF.
	*/
	#define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)

	#define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
	(total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))

	enum AMDGIM_FEATURE_FLAG {
	/* GIM supports feature of Error log collecting */
	AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
	/* GIM supports feature of loading uCodes */
	AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
	/* VRAM LOST by GIM */
	AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
	/* HW PERF SIM in GIM */
	AMDGIM_FEATURE_HW_PERF_SIMULATION = (1 << 3),
	};

	struct amd_sriov_msg_pf2vf_info_header {
	/* the total structure size in byte. */
	uint32_t size;
	/* version of this structure, written by the GIM */
	uint32_t version;
	/* reserved */
	uint32_t reserved[2];
	} __aligned(4);
	struct amdgim_pf2vf_info_v1 {
	/* header contains size and version */
	struct amd_sriov_msg_pf2vf_info_header header;
	/* max_width * max_height */
	unsigned int uvd_enc_max_pixels_count;
	/* 16x16 pixels/sec, codec independent */
	unsigned int uvd_enc_max_bandwidth;
	/* max_width * max_height */
	unsigned int vce_enc_max_pixels_count;
	/* 16x16 pixels/sec, codec independent */
	unsigned int vce_enc_max_bandwidth;
	/* MEC FW position in kb from the start of visible frame buffer */
	unsigned int mecfw_kboffset;
	/* The features flags of the GIM driver supports. */
	unsigned int feature_flags;
	/* use private key from mailbox 2 to create chueksum */
	unsigned int checksum;
	} __aligned(4);

	struct amdgim_pf2vf_info_v2 {
	/* header contains size and version */
	struct amd_sriov_msg_pf2vf_info_header header;
	/* use private key from mailbox 2 to create chueksum */
	uint32_t checksum;
	/* The features flags of the GIM driver supports. */
	uint32_t feature_flags;
	/* max_width * max_height */
	uint32_t uvd_enc_max_pixels_count;
	/* 16x16 pixels/sec, codec independent */
	uint32_t uvd_enc_max_bandwidth;
	/* max_width * max_height */
	uint32_t vce_enc_max_pixels_count;
	/* 16x16 pixels/sec, codec independent */
	uint32_t vce_enc_max_bandwidth;
	/* MEC FW position in kb from the start of VF visible frame buffer */
	uint64_t mecfw_kboffset;
	/* MEC FW size in KB */
	uint32_t mecfw_ksize;
	/* UVD FW position in kb from the start of VF visible frame buffer */
	uint64_t uvdfw_kboffset;
	/* UVD FW size in KB */
	uint32_t uvdfw_ksize;
	/* VCE FW position in kb from the start of VF visible frame buffer */
	uint64_t vcefw_kboffset;
	/* VCE FW size in KB */
	uint32_t vcefw_ksize;
	uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 0, 0, (9 + sizeof(struct amd_sriov_msg_pf2vf_info_header)/sizeof(uint32_t)), 3)];
	} __aligned(4);


	struct amd_sriov_msg_vf2pf_info_header {
	/* the total structure size in byte. */
	uint32_t size;
	/version of this structure, written by the guest /
	uint32_t version;
	/* reserved */
	uint32_t reserved[2];
	} __aligned(4);

	struct amdgim_vf2pf_info_v1 {
	/* header contains size and version */
	struct amd_sriov_msg_vf2pf_info_header header;
	/* driver version */
	char driver_version[64];
	/* driver certification, 1=WHQL, 0=None */
	unsigned int driver_cert;
	/* guest OS type and version: need a define */
	unsigned int os_info;
	/* in the unit of 1M */
	unsigned int fb_usage;
	/* guest gfx engine usage percentage */
	unsigned int gfx_usage;
	/* guest gfx engine health percentage */
	unsigned int gfx_health;
	/* guest compute engine usage percentage */
	unsigned int compute_usage;
	/* guest compute engine health percentage */
	unsigned int compute_health;
	/* guest vce engine usage percentage. 0xffff means N/A. */
	unsigned int vce_enc_usage;
	/* guest vce engine health percentage. 0xffff means N/A. */
	unsigned int vce_enc_health;
	/* guest uvd engine usage percentage. 0xffff means N/A. */
	unsigned int uvd_enc_usage;
	/* guest uvd engine usage percentage. 0xffff means N/A. */
	unsigned int uvd_enc_health;
	unsigned int checksum;
	} __aligned(4);

	struct amdgim_vf2pf_info_v2 {
	/* header contains size and version */
	struct amd_sriov_msg_vf2pf_info_header header;
	uint32_t checksum;
	/* driver version */
	uint8_t driver_version[64];
	/* driver certification, 1=WHQL, 0=None */
	uint32_t driver_cert;
	/* guest OS type and version: need a define */
	uint32_t os_info;
	/* in the unit of 1M */
	uint32_t fb_usage;
	/* guest gfx engine usage percentage */
	uint32_t gfx_usage;
	/* guest gfx engine health percentage */
	uint32_t gfx_health;
	/* guest compute engine usage percentage */
	uint32_t compute_usage;
	/* guest compute engine health percentage */
	uint32_t compute_health;
	/* guest vce engine usage percentage. 0xffff means N/A. */
	uint32_t vce_enc_usage;
	/* guest vce engine health percentage. 0xffff means N/A. */
	uint32_t vce_enc_health;
	/* guest uvd engine usage percentage. 0xffff means N/A. */
	uint32_t uvd_enc_usage;
	/* guest uvd engine usage percentage. 0xffff means N/A. */
	uint32_t uvd_enc_health;
	uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
	} __aligned(4);

	#define AMDGPU_FW_VRAM_VF2PF_VER 2
	typedef struct amdgim_vf2pf_info_v2 amdgim_vf2pf_info ;

	#define AMDGPU_FW_VRAM_VF2PF_WRITE(adev, field, val) \
	do { \
	((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field = (val); \
	} while (0)

	#define AMDGPU_FW_VRAM_VF2PF_READ(adev, field, val) \
	do { \
	(val) = ((amdgim_vf2pf_info )adev->virt.fw_reserve.p_vf2pf)->field; \
	} while (0)

	#define AMDGPU_FW_VRAM_PF2VF_READ(adev, field, val) \
	do { \
	if (!adev->virt.fw_reserve.p_pf2vf) \
	*(val) = 0; \
	else { \
	if (adev->virt.fw_reserve.p_pf2vf->version == 1) \
	(val) = ((struct amdgim_pf2vf_info_v1 )adev->virt.fw_reserve.p_pf2vf)->field; \
	if (adev->virt.fw_reserve.p_pf2vf->version == 2) \
	(val) = ((struct amdgim_pf2vf_info_v2 )adev->virt.fw_reserve.p_pf2vf)->field; \
	} \
	} while (0)

	/* GPU virtualization */
	struct amdgpu_virt {
	uint32_t caps;
	struct amdgpu_bo *csa_obj;
	void *csa_cpu_addr;
	bool chained_ib_support;
	uint32_t reg_val_offs;
	struct amdgpu_irq_src ack_irq;
	struct amdgpu_irq_src rcv_irq;
	struct work_struct flr_work;
	struct amdgpu_mm_table mm_table;
	const struct amdgpu_virt_ops *ops;
	struct amdgpu_vf_error_buffer vf_errors;
	struct amdgpu_virt_fw_reserve fw_reserve;
	uint32_t gim_feature;
	/* protect DPM events to GIM */
	struct mutex dpm_mutex;
	uint32_t reg_access_mode;
	};

	#define amdgpu_sriov_enabled(adev) \
	((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)

	#define amdgpu_sriov_vf(adev) \
	((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)

	#define amdgpu_sriov_bios(adev) \
	((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)

	#define amdgpu_sriov_runtime(adev) \
	((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)

	#define amdgpu_passthrough(adev) \
	((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)

	static inline bool is_virtual_machine(void)
	{
	#ifdef CONFIG_X86
	return boot_cpu_has(X86_FEATURE_HYPERVISOR);
	#else
	return false;
	#endif
	}

	#define amdgim_is_hwperf(adev) \
	((adev)->virt.gim_feature & AMDGIM_FEATURE_HW_PERF_SIMULATION)

	bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
	void amdgpu_virt_init_setting(struct amdgpu_device *adev);
	uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg);
	void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v);
	void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
	uint32_t reg0, uint32_t rreg1,
	uint32_t ref, uint32_t mask);
	int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
	int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
	int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
	int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
	int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
	void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
	int amdgpu_virt_fw_reserve_get_checksum(void *obj, unsigned long obj_size,
	unsigned int key,
	unsigned int chksum);
	void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
	uint32_t amdgpu_virt_get_sclk(struct amdgpu_device *adev, bool lowest);
	uint32_t amdgpu_virt_get_mclk(struct amdgpu_device *adev, bool lowest);
	#endif