Merge branch 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-next

A few fixes for 4.17:
- Fix a potential use after free in a error case
- Fix pcie lane handling in amdgpu SI dpm
- sdma pipeline sync fix
- A few vega12 cleanups and fixes
- Misc other fixes

* 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: Fix memory leaks at amdgpu_init() error path
  drm/amdgpu: Fix PCIe lane width calculation
  drm/radeon: Fix PCIe lane width calculation
  drm/amdgpu/si: implement get/set pcie_lanes asic callback
  drm/amdgpu: Add support for SRBM selection v3
  Revert "drm/amdgpu: Don't change preferred domian when fallback GTT v5"
  drm/amd/powerply: fix power reading on Fiji
  drm/amd/powerplay: Enable ACG SS feature
  drm/amdgpu/sdma: fix mask in emit_pipeline_sync
  drm/amdgpu: Fix KIQ hang on bare metal for device unbind/bind back v2.
  drm/amd/pp: Clean header file in vega12_smumgr.c
  drm/amd/pp: Remove Dead functions on Vega12
  drm/amd/pp: silence a static checker warning
  drm/amdgpu: drop compute ring timeout setting for non-sriov only (v2)
  drm/amdgpu: fix typo of domain fallback

1 files changed, 14 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 28c2706e48d7..46b9ea4e6103 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -56,11 +56,23 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
 		alignment = PAGE_SIZE;
 	}
 
+retry:
 	r = amdgpu_bo_create(adev, size, alignment, initial_domain,
 			     flags, type, resv, &bo);
 	if (r) {
-		DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
-			  size, initial_domain, alignment, r);
+		if (r != -ERESTARTSYS) {
+			if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
+				flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+				goto retry;
+			}
+
+			if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
+				initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
+				goto retry;
+			}
+			DRM_DEBUG("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
+				  size, initial_domain, alignment, r);
+		}
 		return r;
 	}
 	*obj = &bo->gem_base;