[PATCH 5/5] drm/amdgpu: stop allocating a page array for prime shared BOs

[Christian König]

We don't need the page array for prime shared BOs, stop allocating it.

Signed-off-by: Christian König <christian.koe...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c  | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 137145dd14a9..dc8d9f3216fa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -315,7 +315,7 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t 
offset,
        t = offset / AMDGPU_GPU_PAGE_SIZE;
        p = t / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE);
        for (i = 0; i < pages; i++, p++)
-               adev->gart.pages[p] = pagelist[i];
+               adev->gart.pages[p] = pagelist ? pagelist[i] : NULL;
 #endif
 
        if (!adev->gart.ptr)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index e38e6db8f760..854421af1982 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -982,7 +982,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct 
ttm_bo_device *bdev,
        }
        gtt->ttm.ttm.func = &amdgpu_backend_func;
        gtt->adev = adev;
-       if (ttm_dma_tt_init(&gtt->ttm, bdev, size, page_flags)) {
+       if (ttm_sg_tt_init(&gtt->ttm, bdev, size, page_flags)) {
                kfree(gtt);
                return NULL;
        }
@@ -1008,7 +1008,8 @@ static int amdgpu_ttm_tt_populate(struct ttm_tt *ttm,
 
        if (slave && ttm->sg) {
                drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
-                                                gtt->ttm.dma_address, 
ttm->num_pages);
+                                                gtt->ttm.dma_address,
+                                                ttm->num_pages);
                ttm->state = tt_unbound;
                return 0;
        }
-- 
2.14.1

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