Merge tag 'v4.4.5' into linux-linaro-lsk-v4.4

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_object.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index c3ce103b6a33b2ef3a0a6f7f14877e18150ca405..b8fbbd7699e4586e13e57905b0cef818f6e43e6b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <drm/drmP.h>
 #include <drm/amdgpu_drm.h>
+#include <drm/drm_cache.h>
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
 
@@ -261,6 +262,13 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
                                       AMDGPU_GEM_DOMAIN_OA);
 
        bo->flags = flags;
+
+       /* For architectures that don't support WC memory,
+        * mask out the WC flag from the BO
+        */
+       if (!drm_arch_can_wc_memory())
+               bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
+
        amdgpu_fill_placement_to_bo(bo, placement);
        /* Kernel allocation are uninterruptible */
        r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type,
@@ -399,7 +407,8 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
                }
                if (fpfn > bo->placements[i].fpfn)
                        bo->placements[i].fpfn = fpfn;
-               if (lpfn && lpfn < bo->placements[i].lpfn)
+               if (!bo->placements[i].lpfn ||
+                   (lpfn && lpfn < bo->placements[i].lpfn))
                        bo->placements[i].lpfn = lpfn;
                bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
        }