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Commit 3e96dbfd authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: disable smu hw first on tear down 



Otherwise, you can't disable dpm.

Tested-by and Reviewed-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent da146d3b

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

+24 −0
Original line number Diff line number Diff line
@@ -1437,6 +1437,30 @@ static int amdgpu_fini(struct amdgpu_device *adev) 
{

	int i, r;



	/* need to disable SMC first */

	for (i = 0; i < adev->num_ip_blocks; i++) {

		if (!adev->ip_block_status[i].hw)

			continue;

		if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_SMC) {

			/* ungate blocks before hw fini so that we can shutdown the blocks safely */

			r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,

									    AMD_CG_STATE_UNGATE);

			if (r) {

				DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n",

					  adev->ip_blocks[i].funcs->name, r);

				return r;

			}

			r = adev->ip_blocks[i].funcs->hw_fini((void *)adev);

			/* XXX handle errors */

			if (r) {

				DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",

					  adev->ip_blocks[i].funcs->name, r);

			}

			adev->ip_block_status[i].hw = false;

			break;

		}

	}



	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {

		if (!adev->ip_block_status[i].hw)

			continue;