DRM Exynos driver is relying on dma-mapping internal structures when used
with IOMMU enabled. This patch partially hides dma-mapping internal things
by using proper get_dma_ops/set_dma_ops calls.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c
b/drivers/gpu/drm/exynos/exynos_drm_iommu.c
index 323601a52a25..34596da7be33 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c
@@ -117,8 +117,8 @@ int drm_iommu_attach_device(struct drm_device *drm_dev,
* If iommu attach succeeded, the sub driver would have dma_ops
* for iommu and also all sub drivers have same dma_ops.
*/
- if (!dev->archdata.dma_ops)
- dev->archdata.dma_ops = subdrv_dev->archdata.dma_ops;
+ if (get_dma_ops(dev) == get_dma_ops(NULL))
+ set_dma_ops(dev, get_dma_ops(subdrv_dev));
return 0;
}
--
1.9.2
--
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