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drm/amdgpu/pm: look up current_level for asics without pm callback

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For asics without a callback, use the current level rather than 0xff.
This can avoid an unnecesary forced level set on older asics when
set by the user.

Reviewed-by: Kevin Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2021-10-25 15:02:33 -04:00
parent 3ce51649cd
commit 9fac5799c8
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/pm/amdgpu_pm.c
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@ -310,7 +310,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
struct amdgpu_device *adev = drm_to_adev(ddev);
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
enum amd_dpm_forced_level level;
enum amd_dpm_forced_level current_level = 0xff;
enum amd_dpm_forced_level current_level;
int ret = 0;
if (amdgpu_in_reset(adev))
@ -350,6 +350,8 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
if (pp_funcs->get_performance_level)
current_level = amdgpu_dpm_get_performance_level(adev);
else
current_level = adev->pm.dpm.forced_level;
if (current_level == level) {
pm_runtime_mark_last_busy(ddev->dev);