drm/amd/pm: no pptable resetup on runpm exiting

It is assumed the pptable used before runpm is same as
the one used afterwards. Thus, we can reuse the stored
copy and do not need to resetup the pptable again.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <feifei.xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 834d146c4991fae99156113ef223858c95c57540..0652b001ad549606c48dc4d446ae4901f036b020 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1202,10 +1202,17 @@ static int smu_smc_hw_setup(struct smu_context *smu)
                return ret;
        }
 
-       ret = smu_setup_pptable(smu);
-       if (ret) {
-               dev_err(adev->dev, "Failed to setup pptable!\n");
-               return ret;
+       /*
+        * It is assumed the pptable used before runpm is same as
+        * the one used afterwards. Thus, we can reuse the stored
+        * copy and do not need to resetup the pptable again.
+        */
+       if (!adev->in_runpm) {
+               ret = smu_setup_pptable(smu);
+               if (ret) {
+                       dev_err(adev->dev, "Failed to setup pptable!\n");
+                       return ret;
+               }
        }
 
        /* smu_dump_pptable(smu); */