* device address with IOMMU.
* @sgt: sg table to transfer page data.
* @pages: contain all pages to allocated memory region.
+ * @page_size: could be 4K, 64K or 1MB.
* @size: size of allocated memory region.
*/
struct exynos_drm_gem_buf {
dma_addr_t dma_addr;
struct sg_table *sgt;
struct page **pages;
+ unsigned long page_size;
unsigned long size;
};
unsigned int flags;
};
+struct page **exynos_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
+
/* destroy a buffer with gem object */
void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj);
+/* create a private gem object and initialize it. */
+struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+ unsigned long size);
+
/* create a new buffer with gem object */
struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
unsigned int flags,
int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+/* get buffer information to memory region allocated by gem. */
+int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
/* initialize gem object. */
int exynos_drm_gem_init_object(struct drm_gem_object *obj);