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| author | Lijo Lazar <lijo.lazar@amd.com> | 2023-10-06 13:49:03 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-29 16:49:35 -0500 |
| commit | af39e6f4d8032b101907cc2ac12a21a778da568d (patch) | |
| tree | cf7fe41d446c07b43f162d2c8b04cb4d0c3c88f1 /drivers/gpu/drm/amd/include | |
| parent | 9a5095e785c38ab8d9f3d91f4ee76f4f73ec4adc (diff) | |
| download | linux-af39e6f4d8032b101907cc2ac12a21a778da568d.tar.gz linux-af39e6f4d8032b101907cc2ac12a21a778da568d.tar.bz2 linux-af39e6f4d8032b101907cc2ac12a21a778da568d.zip | |
drm/amdgpu: Add reg_state sysfs attribute
Add reg_state attribute to fetch the register snapshot of different
IPs like XGMI, WAFL,PCIE and USR. To get a snapshot for a particular IP
1) Open the sysfs file
2) Seek to the offset as defined in amdgpu_sysfs_reg_offset
3) Read
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/include')
| -rw-r--r-- | drivers/gpu/drm/amd/include/amdgpu_reg_state.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/include/amdgpu_reg_state.h b/drivers/gpu/drm/amd/include/amdgpu_reg_state.h index 3dbdb118db59..be519c8edf49 100644 --- a/drivers/gpu/drm/amd/include/amdgpu_reg_state.h +++ b/drivers/gpu/drm/amd/include/amdgpu_reg_state.h @@ -34,6 +34,15 @@ enum amdgpu_reg_state { AMDGPU_REG_STATE_TYPE_USR_1 = 5 }; +enum amdgpu_sysfs_reg_offset { + AMDGPU_SYS_REG_STATE_XGMI = 0x0000, + AMDGPU_SYS_REG_STATE_WAFL = 0x1000, + AMDGPU_SYS_REG_STATE_PCIE = 0x2000, + AMDGPU_SYS_REG_STATE_USR = 0x3000, + AMDGPU_SYS_REG_STATE_USR_1 = 0x4000, + AMDGPU_SYS_REG_STATE_END = 0x5000, +}; + struct amdgpu_reg_state_header { uint16_t structure_size; uint8_t format_revision; @@ -137,4 +146,8 @@ static inline size_t amdgpu_reginst_size(uint16_t num_inst, size_t inst_size, (size)) : \ 0) + +int amdgpu_reg_state_sysfs_init(struct amdgpu_device *adev); +void amdgpu_reg_state_sysfs_fini(struct amdgpu_device *adev); + #endif |