drm/radeon/kms: force pinning buffer into visible VRAM

This patch properly set visible VRAM and enforce any pinned buffer
to be into visible VRAM. We might later add a flag to release this
constraint for some newer hw more clever than previous.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index f1da370928e..fc9d00ac6b1 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -178,7 +178,6 @@ int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr)
 {
         int r, i;
 
-        radeon_ttm_placement_from_domain(bo, domain);
         if (bo->pin_count) {
                 bo->pin_count++;
                 if (gpu_addr)
@@ -186,6 +185,8 @@ int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr)
                 return 0;
         }
         radeon_ttm_placement_from_domain(bo, domain);
+        /* force to pin into visible video ram */
+        bo->placement.lpfn = bo->rdev->mc.visible_vram_size >> PAGE_SHIFT;
         for (i = 0; i < bo->placement.num_placement; i++)
                 bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
         r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);