drm/exynos: update gem and buffer framework.

with this patch, we can allocate physically continuous or non-continuous
memory and also it creates scatterlist for iommu support so allocated
memory region can be mapped to iommu page table using scatterlist.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h
index aff2313c1274..81c9cb77476e 100644
--- a/include/drm/exynos_drm.h
+++ b/include/drm/exynos_drm.h
@@ -79,6 +79,12 @@ struct drm_exynos_plane_set_zpos {
         __s32 zpos;
 };
 
+/* memory type definitions. */
+enum e_drm_exynos_gem_mem_type {
+        /* Physically Non-Continuous memory. */
+        EXYNOS_BO_NONCONTIG     = 1 << 0
+};
+
 #define DRM_EXYNOS_GEM_CREATE           0x00
 #define DRM_EXYNOS_GEM_MAP_OFFSET       0x01
 #define DRM_EXYNOS_GEM_MMAP             0x02