mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-12 11:36:35 +00:00
2dc8f81e4f
SR-IOV need to exchange some data between PF&VF through shared VRAM PF will copy some necessary firmware and information to the shared VRAM. It also requires some information from VF. PF will send a key through mailbox2 to help guest calculate checksum so that it can verify whether the data is correct. So check the data on the specified offset of the shared VRAM, if the checksum is right, read values from it and write some VF information next to the data from PF. Signed-off-by: Horace Chen <horace.chen@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
296 lines
10 KiB
C
296 lines
10 KiB
C
/*
|
|
* 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);
|
|
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 amdgim_pf2vf_info_header *p_pf2vf;
|
|
struct amdgim_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,
|
|
};
|
|
|
|
struct amdgim_pf2vf_info_header {
|
|
/* the total structure size in byte. */
|
|
uint32_t size;
|
|
/* version of this structure, written by the GIM */
|
|
uint32_t version;
|
|
} __aligned(4);
|
|
struct amdgim_pf2vf_info_v1 {
|
|
/* header contains size and version */
|
|
struct amdgim_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 amdgim_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 amdgim_pf2vf_info_header)/sizeof(uint32_t)), 3)];
|
|
} __aligned(4);
|
|
|
|
|
|
struct amdgim_vf2pf_info_header {
|
|
/* the total structure size in byte. */
|
|
uint32_t size;
|
|
/*version of this structure, written by the guest */
|
|
uint32_t version;
|
|
} __aligned(4);
|
|
|
|
struct amdgim_vf2pf_info_v1 {
|
|
/* header contains size and version */
|
|
struct amdgim_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 amdgim_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 amdgim_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;
|
|
uint64_t csa_vmid0_addr;
|
|
bool chained_ib_support;
|
|
uint32_t reg_val_offs;
|
|
struct mutex lock_reset;
|
|
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;
|
|
};
|
|
|
|
#define AMDGPU_CSA_SIZE (8 * 1024)
|
|
#define AMDGPU_CSA_VADDR (AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE)
|
|
|
|
#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
|
|
}
|
|
|
|
struct amdgpu_vm;
|
|
int amdgpu_allocate_static_csa(struct amdgpu_device *adev);
|
|
int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
|
|
struct amdgpu_bo_va **bo_va);
|
|
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);
|
|
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_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job);
|
|
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
|