diff options
| author | Evan Quan <evan.quan@amd.com> | 2021-12-17 19:05:06 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-30 08:54:45 -0500 |
| commit | 4a700546ec9b8fafedf569f363f905b9ec7f5ee8 (patch) | |
| tree | 8d47d769effc9ffb77124157578089246d769e1e | |
| parent | 0726ed3065eeb910f9cea0c933bc021a848e00b3 (diff) | |
drm/amdgpu: put SMU into proper state on runpm suspending for BOCO capable platform
By setting mp1_state as PP_MP1_STATE_UNLOAD, MP1 will do some proper cleanups and
put itself into a state ready for PNP. That can workaround some random resuming
failure observed on BOCO capable platforms.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 7f94d218b74f..739e4d9303cd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2251,12 +2251,27 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) if (amdgpu_device_supports_px(drm_dev)) drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; + /* + * By setting mp1_state as PP_MP1_STATE_UNLOAD, MP1 will do some + * proper cleanups and put itself into a state ready for PNP. That + * can address some random resuming failure observed on BOCO capable + * platforms. + * TODO: this may be also needed for PX capable platform. + */ + if (amdgpu_device_supports_boco(drm_dev)) + adev->mp1_state = PP_MP1_STATE_UNLOAD; + ret = amdgpu_device_suspend(drm_dev, false); if (ret) { adev->in_runpm = false; + if (amdgpu_device_supports_boco(drm_dev)) + adev->mp1_state = PP_MP1_STATE_NONE; return ret; } + if (amdgpu_device_supports_boco(drm_dev)) + adev->mp1_state = PP_MP1_STATE_NONE; + if (amdgpu_device_supports_px(drm_dev)) { /* Only need to handle PCI state in the driver for ATPX * PCI core handles it for _PR3. |