0001 #ifndef __DRM_GEM_FB_HELPER_H__
0002 #define __DRM_GEM_FB_HELPER_H__
0003
0004 #include <linux/dma-buf.h>
0005 #include <linux/iosys-map.h>
0006
0007 struct drm_afbc_framebuffer;
0008 struct drm_device;
0009 struct drm_fb_helper_surface_size;
0010 struct drm_file;
0011 struct drm_framebuffer;
0012 struct drm_framebuffer_funcs;
0013 struct drm_gem_object;
0014 struct drm_mode_fb_cmd2;
0015
0016 #define AFBC_VENDOR_AND_TYPE_MASK GENMASK_ULL(63, 52)
0017
0018 struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb,
0019 unsigned int plane);
0020 void drm_gem_fb_destroy(struct drm_framebuffer *fb);
0021 int drm_gem_fb_create_handle(struct drm_framebuffer *fb, struct drm_file *file,
0022 unsigned int *handle);
0023
0024 int drm_gem_fb_init_with_funcs(struct drm_device *dev,
0025 struct drm_framebuffer *fb,
0026 struct drm_file *file,
0027 const struct drm_mode_fb_cmd2 *mode_cmd,
0028 const struct drm_framebuffer_funcs *funcs);
0029 struct drm_framebuffer *
0030 drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file,
0031 const struct drm_mode_fb_cmd2 *mode_cmd,
0032 const struct drm_framebuffer_funcs *funcs);
0033 struct drm_framebuffer *
0034 drm_gem_fb_create(struct drm_device *dev, struct drm_file *file,
0035 const struct drm_mode_fb_cmd2 *mode_cmd);
0036 struct drm_framebuffer *
0037 drm_gem_fb_create_with_dirty(struct drm_device *dev, struct drm_file *file,
0038 const struct drm_mode_fb_cmd2 *mode_cmd);
0039
0040 int drm_gem_fb_vmap(struct drm_framebuffer *fb, struct iosys_map *map,
0041 struct iosys_map *data);
0042 void drm_gem_fb_vunmap(struct drm_framebuffer *fb, struct iosys_map *map);
0043 int drm_gem_fb_begin_cpu_access(struct drm_framebuffer *fb, enum dma_data_direction dir);
0044 void drm_gem_fb_end_cpu_access(struct drm_framebuffer *fb, enum dma_data_direction dir);
0045
0046 #define drm_is_afbc(modifier) \
0047 (((modifier) & AFBC_VENDOR_AND_TYPE_MASK) == DRM_FORMAT_MOD_ARM_AFBC(0))
0048
0049 int drm_gem_fb_afbc_init(struct drm_device *dev,
0050 const struct drm_mode_fb_cmd2 *mode_cmd,
0051 struct drm_afbc_framebuffer *afbc_fb);
0052
0053 #endif
