Merge branch 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

- Powerplay fixes for cards with no displays attached
- Couple of DC fixes
- radeon workaround for PPC64

* 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE
  drm/amd/display: VGA black screen from s3 when attached to hook
  drm/amdgpu: Unify the dm resume calls into one
  drm/amdgpu: Add a missing lock for drm_mm_takedown
  Revert "drm/radeon/pm: autoswitch power state when in balanced mode"
  drm/amd/powerplay/smu7: allow mclk switching with no displays
  drm/amd/powerplay/vega10: allow mclk switching with no displays

2 files changed, 1 insertions, 10 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 00a50cc5ec9a..829dc2edace6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2284,14 +2284,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon)
                                 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
                         }
                         drm_modeset_unlock_all(dev);
-                } else {
-                        /*
-                         * There is no equivalent atomic helper to turn on
-                         * display, so we defined our own function for this,
-                         * once suspend resume is supported by the atomic
-                         * framework this will be reworked
-                         */
-                        amdgpu_dm_display_resume(adev);
                 }
         }
 
@@ -2726,7 +2718,6 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
         if (amdgpu_device_has_dc_support(adev)) {
                 if (drm_atomic_helper_resume(adev->ddev, state))
                         dev_info(adev->dev, "drm resume failed:%d\n", r);
-                amdgpu_dm_display_resume(adev);
         } else {
                 drm_helper_resume_force_mode(adev->ddev);
         }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index e14ab34d8262..7c2be32c5aea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -75,7 +75,7 @@ static int amdgpu_gtt_mgr_init(struct ttm_mem_type_manager *man,
 static int amdgpu_gtt_mgr_fini(struct ttm_mem_type_manager *man)
 {
         struct amdgpu_gtt_mgr *mgr = man->priv;
-
+        spin_lock(&mgr->lock);
         drm_mm_takedown(&mgr->mm);
         spin_unlock(&mgr->lock);
         kfree(mgr);