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Commit a0250d36 authored by Chunming Zhou's avatar Chunming Zhou Committed by Alex Deucher
Browse files

drm/amdgpu: save/restore bios scratch when gpu reset 



Signed-off-by: default avatarChunming Zhou <David1.Zhou@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6adb0513

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

+4 −1
Original line number Diff line number Diff line
@@ -1951,6 +1951,8 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev) 
	/* block TTM */

	resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);



	/* save scratch */

	amdgpu_atombios_scratch_regs_save(adev);

	r = amdgpu_suspend(adev);



	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
@@ -1975,7 +1977,8 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev) 
		dev_info(adev->dev, "GPU reset succeeded, trying to resume\n");

		r = amdgpu_resume(adev);

	}



	/* restore scratch */

	amdgpu_atombios_scratch_regs_restore(adev);

	if (!r) {

		for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {

			struct amdgpu_ring *ring = adev->rings[i];