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| author | Alex Deucher <alexander.deucher@amd.com> | 2021-02-04 10:29:19 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-09 15:29:54 -0500 |
| commit | af484df800e356725c39f52e7cbe8b47f1753453 (patch) | |
| tree | 9d4160e7b9dc105c77c9a5f88da0d9bd7d48980a /drivers/gpu/drm/amd | |
| parent | d5ab066917a5438459e5464fd17432685a2aedc7 (diff) | |
| download | linux-stable-af484df800e356725c39f52e7cbe8b47f1753453.tar.gz linux-stable-af484df800e356725c39f52e7cbe8b47f1753453.tar.bz2 linux-stable-af484df800e356725c39f52e7cbe8b47f1753453.zip | |
drm/amdgpu: add generic pci reset as an option
This allows us to use generic PCI reset mechanisms (FLR, SBR) as
a reset mechanism to verify that the generic PCI reset mechanisms
are working properly.
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 |
3 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index dbf8c8a0878c..9717cb43eb26 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -579,7 +579,8 @@ enum amd_reset_method { AMD_RESET_METHOD_MODE0, AMD_RESET_METHOD_MODE1, AMD_RESET_METHOD_MODE2, - AMD_RESET_METHOD_BACO + AMD_RESET_METHOD_BACO, + AMD_RESET_METHOD_PCI, }; /* @@ -1228,6 +1229,7 @@ bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev); int amdgpu_device_gpu_recover(struct amdgpu_device *adev, struct amdgpu_job* job); void amdgpu_device_pci_config_reset(struct amdgpu_device *adev); +int amdgpu_device_pci_reset(struct amdgpu_device *adev); bool amdgpu_device_need_post(struct amdgpu_device *adev); void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 51bea409e513..e6a72a7fc311 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -929,6 +929,18 @@ void amdgpu_device_pci_config_reset(struct amdgpu_device *adev) pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA); } +/** + * amdgpu_device_pci_reset - reset the GPU using generic PCI means + * + * @adev: amdgpu_device pointer + * + * Resets the GPU using generic pci reset interfaces (FLR, SBR, etc.). + */ +int amdgpu_device_pci_reset(struct amdgpu_device *adev) +{ + return pci_reset_function(adev->pdev); +} + /* * GPU doorbell aperture helpers function. */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 9173da34dd22..80c46f648d5c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -793,9 +793,9 @@ module_param_named(tmz, amdgpu_tmz, int, 0444); /** * DOC: reset_method (int) - * GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco) + * GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco, 5 = pci) */ -MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco)"); +MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco, 5 = pci)"); module_param_named(reset_method, amdgpu_reset_method, int, 0444); /** |