diff options
Diffstat (limited to 'include/drm/drm_gem_vram_helper.h')
| -rw-r--r-- | include/drm/drm_gem_vram_helper.h | 79 |
1 files changed, 45 insertions, 34 deletions
diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h index 573e9fd109bf..c083a1d71cf4 100644 --- a/include/drm/drm_gem_vram_helper.h +++ b/include/drm/drm_gem_vram_helper.h @@ -5,12 +5,14 @@ #include <drm/drm_file.h> #include <drm/drm_gem.h> +#include <drm/drm_gem_ttm_helper.h> #include <drm/drm_ioctl.h> +#include <drm/drm_modes.h> #include <drm/ttm/ttm_bo_api.h> #include <drm/ttm/ttm_bo_driver.h> -#include <drm/ttm/ttm_placement.h> -#include <linux/kernel.h> /* for container_of() */ +#include <linux/container_of.h> +#include <linux/iosys-map.h> struct drm_mode_create_dumb; struct drm_plane; @@ -19,9 +21,9 @@ struct drm_simple_display_pipe; struct filp; struct vm_area_struct; -#define DRM_GEM_VRAM_PL_FLAG_VRAM TTM_PL_FLAG_VRAM -#define DRM_GEM_VRAM_PL_FLAG_SYSTEM TTM_PL_FLAG_SYSTEM -#define DRM_GEM_VRAM_PL_FLAG_TOPDOWN TTM_PL_FLAG_TOPDOWN +#define DRM_GEM_VRAM_PL_FLAG_SYSTEM (1 << 0) +#define DRM_GEM_VRAM_PL_FLAG_VRAM (1 << 1) +#define DRM_GEM_VRAM_PL_FLAG_TOPDOWN (1 << 2) /* * Buffer-object helpers @@ -29,13 +31,11 @@ struct vm_area_struct; /** * struct drm_gem_vram_object - GEM object backed by VRAM - * @gem: GEM object * @bo: TTM buffer object - * @kmap: Mapping information for @bo + * @map: Mapping information for @bo * @placement: TTM placement information. Supported placements are \ %TTM_PL_VRAM and %TTM_PL_SYSTEM * @placements: TTM placement information. - * @pin_count: Pin counter * * The type struct drm_gem_vram_object represents a GEM object that is * backed by VRAM. It can be used for simple framebuffer devices with @@ -51,26 +51,24 @@ struct vm_area_struct; */ struct drm_gem_vram_object { struct ttm_buffer_object bo; - struct ttm_bo_kmap_obj kmap; + struct iosys_map map; /** - * @kmap_use_count: + * @vmap_use_count: * * Reference count on the virtual address. * The address are un-mapped when the count reaches zero. */ - unsigned int kmap_use_count; + unsigned int vmap_use_count; /* Supported placements are %TTM_PL_VRAM and %TTM_PL_SYSTEM */ struct ttm_placement placement; struct ttm_place placements[2]; - - int pin_count; }; /** - * Returns the container of type &struct drm_gem_vram_object - * for field bo. + * drm_gem_vram_of_bo - Returns the container of type + * &struct drm_gem_vram_object for field bo. * @bo: the VRAM buffer object * Returns: The containing GEM VRAM object */ @@ -81,8 +79,8 @@ static inline struct drm_gem_vram_object *drm_gem_vram_of_bo( } /** - * Returns the container of type &struct drm_gem_vram_object - * for field gem. + * drm_gem_vram_of_gem - Returns the container of type + * &struct drm_gem_vram_object for field gem. * @gem: the GEM object * Returns: The containing GEM VRAM object */ @@ -96,15 +94,12 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev, size_t size, unsigned long pg_align); void drm_gem_vram_put(struct drm_gem_vram_object *gbo); -u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo); s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo); int drm_gem_vram_pin(struct drm_gem_vram_object *gbo, unsigned long pl_flag); int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo); -void *drm_gem_vram_kmap(struct drm_gem_vram_object *gbo, bool map, - bool *is_iomem); -void drm_gem_vram_kunmap(struct drm_gem_vram_object *gbo); -void *drm_gem_vram_vmap(struct drm_gem_vram_object *gbo); -void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, void *vaddr); +int drm_gem_vram_vmap(struct drm_gem_vram_object *gbo, struct iosys_map *map); +void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, + struct iosys_map *map); int drm_gem_vram_fill_create_dumb(struct drm_file *file, struct drm_device *dev, @@ -119,9 +114,6 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file, int drm_gem_vram_driver_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args); -int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, - struct drm_device *dev, - uint32_t handle, uint64_t *offset); /* * Helpers for struct drm_plane_helper_funcs @@ -133,6 +125,18 @@ void drm_gem_vram_plane_helper_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state); +/** + * DRM_GEM_VRAM_PLANE_HELPER_FUNCS - + * Initializes struct drm_plane_helper_funcs for VRAM handling + * + * Drivers may use GEM BOs as VRAM helpers for the framebuffer memory. This + * macro initializes struct drm_plane_helper_funcs to use the respective helper + * functions. + */ +#define DRM_GEM_VRAM_PLANE_HELPER_FUNCS \ + .prepare_fb = drm_gem_vram_plane_helper_prepare_fb, \ + .cleanup_fb = drm_gem_vram_plane_helper_cleanup_fb + /* * Helpers for struct drm_simple_display_pipe_funcs */ @@ -155,7 +159,7 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb( #define DRM_GEM_VRAM_DRIVER \ .debugfs_init = drm_vram_mm_debugfs_init, \ .dumb_create = drm_gem_vram_driver_dumb_create, \ - .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, \ + .dumb_map_offset = drm_gem_ttm_dumb_map_offset, \ .gem_prime_mmap = drm_gem_prime_mmap /* @@ -178,31 +182,38 @@ struct drm_vram_mm { uint64_t vram_base; size_t vram_size; - struct ttm_bo_device bdev; + struct ttm_device bdev; }; /** * drm_vram_mm_of_bdev() - \ - Returns the container of type &struct ttm_bo_device for field bdev. + Returns the container of type &struct ttm_device for field bdev. * @bdev: the TTM BO device * * Returns: * The containing instance of &struct drm_vram_mm */ static inline struct drm_vram_mm *drm_vram_mm_of_bdev( - struct ttm_bo_device *bdev) + struct ttm_device *bdev) { return container_of(bdev, struct drm_vram_mm, bdev); } -int drm_vram_mm_debugfs_init(struct drm_minor *minor); +void drm_vram_mm_debugfs_init(struct drm_minor *minor); /* * Helpers for integration with struct drm_device */ -struct drm_vram_mm *drm_vram_helper_alloc_mm( - struct drm_device *dev, uint64_t vram_base, size_t vram_size); -void drm_vram_helper_release_mm(struct drm_device *dev); +int drmm_vram_helper_init(struct drm_device *dev, uint64_t vram_base, + size_t vram_size); + +/* + * Mode-config helpers + */ + +enum drm_mode_status +drm_vram_helper_mode_valid(struct drm_device *dev, + const struct drm_display_mode *mode); #endif |