diff options
Diffstat (limited to 'drivers/gpu/drm/drm_gem_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem_atomic_helper.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_gem_atomic_helper.c b/drivers/gpu/drm/drm_gem_atomic_helper.c index b6a0110eb64a..1de0a08afd86 100644 --- a/drivers/gpu/drm/drm_gem_atomic_helper.c +++ b/drivers/gpu/drm/drm_gem_atomic_helper.c @@ -414,16 +414,14 @@ void drm_gem_cleanup_shadow_fb(struct drm_plane *plane, struct drm_plane_state * EXPORT_SYMBOL(drm_gem_cleanup_shadow_fb); /** - * drm_gem_simple_kms_prepare_shadow_fb - prepares shadow framebuffers + * drm_gem_simple_kms_begin_shadow_fb_access - prepares shadow framebuffers for CPU access * @pipe: the simple display pipe * @plane_state: the plane state of type struct drm_shadow_plane_state * - * This function implements struct drm_simple_display_funcs.prepare_fb. It - * maps all buffer objects of the plane's framebuffer into kernel address - * space and stores them in struct drm_shadow_plane_state.map. The - * framebuffer will be synchronized as part of the atomic commit. + * This function implements struct drm_simple_display_funcs.begin_fb_access. * - * See drm_gem_simple_kms_cleanup_shadow_fb() for cleanup. + * See drm_gem_begin_shadow_fb_access() for details and + * drm_gem_simple_kms_cleanup_shadow_fb() for cleanup. * * Returns: * 0 on success, or a negative errno code otherwise. @@ -436,14 +434,15 @@ int drm_gem_simple_kms_prepare_shadow_fb(struct drm_simple_display_pipe *pipe, EXPORT_SYMBOL(drm_gem_simple_kms_prepare_shadow_fb); /** - * drm_gem_simple_kms_cleanup_shadow_fb - releases shadow framebuffers + * drm_gem_simple_kms_end_shadow_fb_access - releases shadow framebuffers from CPU access * @pipe: the simple display pipe * @plane_state: the plane state of type struct drm_shadow_plane_state * - * This function implements struct drm_simple_display_funcs.cleanup_fb. - * This function unmaps all buffer objects of the plane's framebuffer. + * This function implements struct drm_simple_display_funcs.end_fb_access. + * It undoes all effects of drm_gem_simple_kms_begin_shadow_fb_access() in + * reverse order. * - * See drm_gem_simple_kms_prepare_shadow_fb(). + * See drm_gem_simple_kms_begin_shadow_fb_access(). */ void drm_gem_simple_kms_cleanup_shadow_fb(struct drm_simple_display_pipe *pipe, struct drm_plane_state *plane_state) |