Commit 199c7717 authored by Noralf Trønnes's avatar Noralf Trønnes Committed by Daniel Vetter

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: default avatarNoralf Trønnes <noralf@tronnes.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-6-git-send-email-noralf@tronnes.org
parent ba026334
This diff is collapsed.
...@@ -4,11 +4,18 @@ ...@@ -4,11 +4,18 @@
struct drm_fbdev_cma; struct drm_fbdev_cma;
struct drm_gem_cma_object; 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_framebuffer;
struct drm_fb_helper;
struct drm_device; struct drm_device;
struct drm_file; struct drm_file;
struct drm_mode_fb_cmd2; 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, struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
unsigned int preferred_bpp, unsigned int num_crtc, unsigned int preferred_bpp, unsigned int num_crtc,
unsigned int max_conn_count); unsigned int max_conn_count);
...@@ -16,6 +23,13 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma); ...@@ -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_restore_mode(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_hotplug_event(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_framebuffer *drm_fb_cma_create(struct drm_device *dev,
struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd); struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd);
......
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