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drm/amdgpu: add generic pci reset as an option

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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>
This commit is contained in:
Alex Deucher
2021-02-04 10:29:19 -05:00
parent d5ab066917
commit af484df800
3 changed files with 17 additions and 3 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -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.
*/