From b2df26c10b16afe2eed904f2b85a4d2047531d30 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Mon, 23 Apr 2012 21:01:28 +0900 Subject: drm/exynos: added drm prime feature. this patch adds exynos specific codes for DRM Prime feature. with this patch, user application can get file descriptor from gem handle through DRM_IOCTL_PRIME_HANDLE_TO_FD ioctl command(export) and also gem handle from file descriptor through DRM_IOCTL_PRIME_FD_TO_HANLDE(import) ioctl command. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_gem.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/drm/exynos/exynos_drm_gem.h') diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 4ed842039505..efc82527b272 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -40,6 +40,7 @@ * 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 { @@ -47,6 +48,7 @@ struct exynos_drm_gem_buf { dma_addr_t dma_addr; struct sg_table *sgt; struct page **pages; + unsigned long page_size; unsigned long size; }; @@ -74,9 +76,15 @@ struct exynos_drm_gem_obj { 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, -- cgit v1.2.1