drm/amdgpu: Move to gtt before cpu accesses dma buf.

To improve cpu read performance. This is implemented for APUs currently.

v2: Adapt to change https://lists.freedesktop.org/archives/amd-gfx/2017-October/015174.html
v3: Adapt to change "forward begin_cpu_access callback to drivers"
v4: Instead of v3, reuse drm_gem dmabuf_ops here. Also some minor fixes as suggested.
v5: only set dma_buf ops when it is valid (Samuel)

Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index d96f9ac9e5fd..0bb34db265ec 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -870,7 +870,7 @@ static struct drm_driver kms_driver = {
         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
         .gem_prime_export = amdgpu_gem_prime_export,
-        .gem_prime_import = drm_gem_prime_import,
+        .gem_prime_import = amdgpu_gem_prime_import,
         .gem_prime_pin = amdgpu_gem_prime_pin,
         .gem_prime_unpin = amdgpu_gem_prime_unpin,
         .gem_prime_res_obj = amdgpu_gem_prime_res_obj,