github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 12:44:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amdgpu: restore UMD profile pstate after runtime resume

Browse Source 
Runtime suspend runs GFX hw_fini and clears perfmon clock gating while
the UMD profile DPM level remains set in software.  Re-apply stable
pstate after a successful runtime resume when a profile mode is active.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 138531c885)
Cc: stable@vger.kernel.org
This commit is contained in:
Candice Li 2026-07-21 21:38:58 +08:00 committed by Alex Deucher
parent 8ccb87b1c9
commit f931c54b24
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -2908,6 +2908,19 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
return 0;
}
static void amdgpu_restore_umd_profile_pstate_after_runpm(struct amdgpu_device *adev)
{
enum amd_dpm_forced_level level;
uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
level = amdgpu_dpm_get_performance_level(adev);
if (level & profile_mode_mask)
amdgpu_asic_update_umd_stable_pstate(adev, true);
}
static int amdgpu_pmops_runtime_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
@ -2952,6 +2965,8 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
if (adev->pm.rpm_mode == AMDGPU_RUNPM_PX)
drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
amdgpu_restore_umd_profile_pstate_after_runpm(adev);
adev->in_runpm = false;
return 0;
}