Commit 6ea239ad authored by Tianci Yin's avatar Tianci Yin Committed by Alex Deucher
Browse files

drm/amdgpu/vcn: improve vcn dpg stop procedure 



Prior to disabling dpg, VCN need unpausing dpg mode, or VCN will hang in
S3 resuming.

Reviewed-by: default avatarJames Zhu <James.Zhu@amd.com>
Signed-off-by: default avatarTianci Yin <tianci.yin@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c5650327

drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

+3 −0
Original line number Diff line number Diff line
@@ -1480,8 +1480,11 @@ static int vcn_v3_0_start_sriov(struct amdgpu_device *adev) 


static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx)

{

	struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE};

	uint32_t tmp;



	vcn_v3_0_pause_dpg_mode(adev, 0, &state);



	/* Wait for power status to be 1 */

	SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,

		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);