This is a note to let you know that I've just added the patch titled drm/amdgpu/vcn: improve vcn dpg stop procedure to the 5.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amdgpu-vcn-improve-vcn-dpg-stop-procedure.patch and it can be found in the queue-5.17 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e15576c5ac90dc8d6d3978d3398b4a03ab183d7b Author: Tianci Yin <tianci.yin@xxxxxxx> Date: Wed Mar 23 23:54:58 2022 +0800 drm/amdgpu/vcn: improve vcn dpg stop procedure [ Upstream commit 6ea239adc2a712eb318f04f5c29b018ba65ea38a ] Prior to disabling dpg, VCN need unpausing dpg mode, or VCN will hang in S3 resuming. Reviewed-by: James Zhu <James.Zhu@xxxxxxx> Signed-off-by: Tianci Yin <tianci.yin@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 0ce2a7aa400b..ad9bfc772bdf 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -1474,8 +1474,11 @@ 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);