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>

1 files changed, 12 insertions, 0 deletions

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.
  */