Commit 134d16d5 authored by John Clements's avatar John Clements Committed by Alex Deucher
Browse files

drm/amdgpu: RAS harvest on driver load 



In event of RAS UE + warm reset, error counters shall be harvested and cleared on driver load

Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarJohn Clements <john.clements@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 340c571b

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

+29 −0
Original line number Diff line number Diff line
@@ -2090,6 +2090,32 @@ int amdgpu_ras_init(struct amdgpu_device *adev) 
	return r;

}



static int amdgpu_persistent_edc_harvesting_supported(struct amdgpu_device *adev)

{

	if (adev->gmc.xgmi.connected_to_cpu)

		return 1;

	return 0;

}



static int amdgpu_persistent_edc_harvesting(struct amdgpu_device *adev,

					struct ras_common_if *ras_block)

{

	struct ras_query_if info = {

		.head = *ras_block,

	};



	if (!amdgpu_persistent_edc_harvesting_supported(adev))

		return 0;



	if (amdgpu_ras_query_error_status(adev, &info) != 0)

		DRM_WARN("RAS init harvest failure");



	if (amdgpu_ras_reset_error_status(adev, ras_block->block) != 0)

		DRM_WARN("RAS init harvest reset failure");



	return 0;

}



/* helper function to handle common stuff in ip late init phase */

int amdgpu_ras_late_init(struct amdgpu_device *adev,

			 struct ras_common_if *ras_block,
@@ -2119,6 +2145,9 @@ int amdgpu_ras_late_init(struct amdgpu_device *adev, 
			return r;

	}



	/* check for errors on warm reset edc persisant supported ASIC */

	amdgpu_persistent_edc_harvesting(adev, ras_block);



	/* in resume phase, no need to create ras fs node */

	if (adev->in_suspend || amdgpu_in_reset(adev))

		return 0;