diff options
| author | Noralf Trønnes <noralf@tronnes.org> | 2016-04-28 18:18:35 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-02 17:25:08 +0300 |
| commit | 199c77179c879e6cbca178bf67e9153dc89fb3d1 (patch) | |
| tree | 79332b26817c6662ad54f9ee4555920001d70ed0 /include/drm/drm_fb_cma_helper.h | |
| parent | ba0263340a2aeaf5f08e4f2b0f4c29e300828b06 (diff) | |
| download | linux-199c77179c879e6cbca178bf67e9153dc89fb3d1.tar.xz | |
drm/fb-cma-helper: Add fb_deferred_io support
This adds fbdev deferred io support if CONFIG_FB_DEFERRED_IO is enabled.
The driver has to provide a (struct drm_framebuffer_funcs *)->dirty()
callback to get notification of fbdev framebuffer changes.
If the dirty() hook is set, then fb_deferred_io is set up automatically
by the helper.
Two functions have been added so that the driver can provide a dirty()
function:
- drm_fbdev_cma_init_with_funcs()
This makes it possible for the driver to provided a custom
(struct drm_fb_helper_funcs *)->fb_probe() function.
- drm_fbdev_cma_create_with_funcs()
This is used by the .fb_probe hook to set a driver provided
(struct drm_framebuffer_funcs *)->dirty() function.
Cc: laurent.pinchart@ideasonboard.com
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
Diffstat (limited to 'include/drm/drm_fb_cma_helper.h')
| -rw-r--r-- | include/drm/drm_fb_cma_helper.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h index be62bd321e75..6554b6f38bb4 100644 --- a/include/drm/drm_fb_cma_helper.h +++ b/include/drm/drm_fb_cma_helper.h @@ -4,11 +4,18 @@ struct drm_fbdev_cma; struct drm_gem_cma_object; +struct drm_fb_helper_surface_size; +struct drm_framebuffer_funcs; +struct drm_fb_helper_funcs; struct drm_framebuffer; +struct drm_fb_helper; struct drm_device; struct drm_file; struct drm_mode_fb_cmd2; +struct drm_fbdev_cma *drm_fbdev_cma_init_with_funcs(struct drm_device *dev, + unsigned int preferred_bpp, unsigned int num_crtc, + unsigned int max_conn_count, const struct drm_fb_helper_funcs *funcs); struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev, unsigned int preferred_bpp, unsigned int num_crtc, unsigned int max_conn_count); @@ -16,6 +23,13 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma); void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma); void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma); +int drm_fbdev_cma_create_with_funcs(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes, + struct drm_framebuffer_funcs *funcs); + +void drm_fb_cma_destroy(struct drm_framebuffer *fb); +int drm_fb_cma_create_handle(struct drm_framebuffer *fb, + struct drm_file *file_priv, unsigned int *handle); struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd); |