drm/amdgpu: fix gtt_mgr bo's offset

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 262e872..f86c844 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -128,8 +128,9 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
 
        if (!r) {
                mem->start = node->start;
-               tbo->offset = (tbo->mem.start << PAGE_SHIFT) +
-                   tbo->bdev->man[tbo->mem.mem_type].gpu_offset;
+               if (&tbo->mem == mem)
+                       tbo->offset = (tbo->mem.start << PAGE_SHIFT) +
+                           tbo->bdev->man[tbo->mem.mem_type].gpu_offset;
        }
 
        return r;