radeon_copy_dma and radeon_copy_blit must be called with
a valid reservation object. Otherwise a crash will be provoked.
We borrow the object from destination BO.

Cc: stable at vger.kernel.org
Signed-off-by: Ilija Hadzic <ihadzic at research.bell-labs.com>
---
 drivers/gpu/drm/radeon/radeon_benchmark.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c 
b/drivers/gpu/drm/radeon/radeon_benchmark.c
index 9e7f23d..87d5fb2 100644
--- a/drivers/gpu/drm/radeon/radeon_benchmark.c
+++ b/drivers/gpu/drm/radeon/radeon_benchmark.c
@@ -34,7 +34,8 @@

 static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
                                    uint64_t saddr, uint64_t daddr,
-                                   int flag, int n)
+                                   int flag, int n,
+                                   struct reservation_object *resv)
 {
        unsigned long start_jiffies;
        unsigned long end_jiffies;
@@ -47,12 +48,12 @@ static int radeon_benchmark_do_move(struct radeon_device 
*rdev, unsigned size,
                case RADEON_BENCHMARK_COPY_DMA:
                        fence = radeon_copy_dma(rdev, saddr, daddr,
                                                size / RADEON_GPU_PAGE_SIZE,
-                                               NULL);
+                                               resv);
                        break;
                case RADEON_BENCHMARK_COPY_BLIT:
                        fence = radeon_copy_blit(rdev, saddr, daddr,
                                                 size / RADEON_GPU_PAGE_SIZE,
-                                                NULL);
+                                                resv);
                        break;
                default:
                        DRM_ERROR("Unknown copy method\n");
@@ -120,7 +121,8 @@ static void radeon_benchmark_move(struct radeon_device 
*rdev, unsigned size,

        if (rdev->asic->copy.dma) {
                time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
-                                               RADEON_BENCHMARK_COPY_DMA, n);
+                                               RADEON_BENCHMARK_COPY_DMA, n,
+                                               dobj->tbo.resv);
                if (time < 0)
                        goto out_cleanup;
                if (time > 0)
@@ -130,7 +132,8 @@ static void radeon_benchmark_move(struct radeon_device 
*rdev, unsigned size,

        if (rdev->asic->copy.blit) {
                time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
-                                               RADEON_BENCHMARK_COPY_BLIT, n);
+                                               RADEON_BENCHMARK_COPY_BLIT, n,
+                                               dobj->tbo.resv);
                if (time < 0)
                        goto out_cleanup;
                if (time > 0)
-- 
2.2.0

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