Commit bcfe4e25 authored Jun 03, 2015 by Marek Szyprowski Committed by Inki Dae Jun 20, 2015

drm/exynos: iommu: improve a check for non-iommu dma_ops



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.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

parent 45286858

drivers/gpu/drm/exynos/exynos_drm_iommu.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}