diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2019-08-05 16:01:03 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-08-06 08:21:53 +0200 |
| commit | 8eb8833e7ed362977c021116d2f34451a7009ca3 (patch) | |
| tree | 2a82f703f978a4611e35955a83da4f5b04767b09 | |
| parent | backlight: drop EARLY_EVENT_BLANK support (diff) | |
| download | linux-8eb8833e7ed362977c021116d2f34451a7009ca3.tar.xz linux-8eb8833e7ed362977c021116d2f34451a7009ca3.zip | |
drm/ttm: add gem base object
Add drm_gem_object struct to ttm_buffer_object, so ttm objects are a gdm
object superclass. Add a function to check whenever a given bo actually
uses the embedded drm_gem_object.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-2-kraxel@redhat.com
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 49d9cdfc58f2..082550cac92c 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -31,6 +31,7 @@ #ifndef _TTM_BO_API_H_ #define _TTM_BO_API_H_ +#include <drm/drm_gem.h> #include <drm/drm_hashtab.h> #include <drm/drm_vma_manager.h> #include <linux/kref.h> @@ -127,6 +128,7 @@ struct ttm_tt; /** * struct ttm_buffer_object * + * @base: drm_gem_object superclass data. * @bdev: Pointer to the buffer object device structure. * @type: The bo type. * @destroy: Destruction function. If NULL, kfree is used. @@ -169,6 +171,8 @@ struct ttm_tt; */ struct ttm_buffer_object { + struct drm_gem_object base; + /** * Members constant at init. */ @@ -768,4 +772,23 @@ int ttm_bo_swapout(struct ttm_bo_global *glob, struct ttm_operation_ctx *ctx); void ttm_bo_swapout_all(struct ttm_bo_device *bdev); int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo); + +/** + * ttm_bo_uses_embedded_gem_object - check if the given bo uses the + * embedded drm_gem_object. + * + * Most ttm drivers are using gem too, so the embedded + * ttm_buffer_object.base will be initialized by the driver (before + * calling ttm_bo_init). It is also possible to use ttm without gem + * though (vmwgfx does that). + * + * This helper will figure whenever a given ttm bo is a gem object too + * or not. + * + * @bo: The bo to check. + */ +static inline bool ttm_bo_uses_embedded_gem_object(struct ttm_buffer_object *bo) +{ + return bo->base.dev != NULL; +} #endif |