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/*
* 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);
};
/*
* 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,
/* PP ONE VF MODE in GIM */
AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
};
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;
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_sriov_fullaccess(adev) \
(amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
#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 amdgpu_sriov_is_pp_one_vf(adev) \
((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
void amdgpu_virt_init_setting(struct amdgpu_device *adev);
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);
#endif
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