Merge branch 'drm-fixes-4.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

A bunch of bug fixes:
- Fix display flickering on some chips at high refresh rates
- suspend/resume fix
- hotplug fix
- a couple of segfault fixes for certain cases

* 'drm-fixes-4.12' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: fix null point error when rmmod amdgpu.
  drm/amd/powerplay: fix a signedness bugs
  drm/amdgpu: fix NULL pointer panic of emit_gds_switch
  drm/radeon: Unbreak HPD handling for r600+
  drm/amd/powerplay/smu7: disable mclk switching for high refresh rates
  drm/amd/powerplay/smu7: add vblank check for mclk switching (v2)
  drm/radeon/ci: disable mclk switching for high refresh rates (v2)
  drm/amdgpu/ci: disable mclk switching for high refresh rates (v2)
  drm/amdgpu: fix fundamental suspend/resume issue

1 files changed, 2 insertions, 13 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 4ac99784160a..f56b4089ee9f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1209,10 +1209,6 @@ static int gmc_v8_0_suspend(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	if (adev->vm_manager.enabled) {
-		gmc_v8_0_vm_fini(adev);
-		adev->vm_manager.enabled = false;
-	}
 	gmc_v8_0_hw_fini(adev);
 
 	return 0;
@@ -1227,16 +1223,9 @@ static int gmc_v8_0_resume(void *handle)
 	if (r)
 		return r;
 
-	if (!adev->vm_manager.enabled) {
-		r = gmc_v8_0_vm_init(adev);
-		if (r) {
-			dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
-			return r;
-		}
-		adev->vm_manager.enabled = true;
-	}
+	amdgpu_vm_reset_all_ids(adev);
 
-	return r;
+	return 0;
 }
 
 static bool gmc_v8_0_is_idle(void *handle)