diff options
Diffstat (limited to 'drivers/gpu/drm/drm_client.c')
| -rw-r--r-- | drivers/gpu/drm/drm_client.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 536a22747b51..495f47d23d87 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -437,6 +437,39 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer) } EXPORT_SYMBOL(drm_client_framebuffer_delete); +/** + * drm_client_framebuffer_flush - Manually flush client framebuffer + * @buffer: DRM client buffer (can be NULL) + * @rect: Damage rectangle (if NULL flushes all) + * + * This calls &drm_framebuffer_funcs->dirty (if present) to flush buffer changes + * for drivers that need it. + * + * Returns: + * Zero on success or negative error code on failure. + */ +int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect) +{ + if (!buffer || !buffer->fb || !buffer->fb->funcs->dirty) + return 0; + + if (rect) { + struct drm_clip_rect clip = { + .x1 = rect->x1, + .y1 = rect->y1, + .x2 = rect->x2, + .y2 = rect->y2, + }; + + return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file, + 0, 0, &clip, 1); + } + + return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file, + 0, 0, NULL, 0); +} +EXPORT_SYMBOL(drm_client_framebuffer_flush); + #ifdef CONFIG_DEBUG_FS static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data) { |