diff options
Diffstat (limited to 'drivers/gpu/drm/drm_dumb_buffers.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dumb_buffers.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c index 10307cc16d75..39ac15ce4702 100644 --- a/drivers/gpu/drm/drm_dumb_buffers.c +++ b/drivers/gpu/drm/drm_dumb_buffers.c @@ -24,6 +24,7 @@ */ #include <drm/drmP.h> +#include <drm/drm_gem.h> #include "drm_crtc_internal.h" @@ -42,9 +43,10 @@ * create dumb buffers suitable for scanout, which can then be used to create * KMS frame buffers. * - * To support dumb objects drivers must implement the &drm_driver.dumb_create, - * &drm_driver.dumb_destroy and &drm_driver.dumb_map_offset operations. See - * there for further details. + * To support dumb objects drivers must implement the &drm_driver.dumb_create + * operation. &drm_driver.dumb_destroy defaults to drm_gem_dumb_destroy() if + * not set and &drm_driver.dumb_map_offset defaults to + * drm_gem_dumb_map_offset(). See the callbacks for further details. * * Note that dumb objects may not be used for gpu acceleration, as has been * attempted on some ARM embedded platforms. Such drivers really must have @@ -108,11 +110,16 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, { struct drm_mode_map_dumb *args = data; - /* call driver ioctl to get mmap offset */ - if (!dev->driver->dumb_map_offset) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); + if (dev->driver->dumb_map_offset) + return dev->driver->dumb_map_offset(file_priv, dev, + args->handle, + &args->offset); + else + return drm_gem_dumb_map_offset(file_priv, dev, args->handle, + &args->offset); } int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, @@ -120,9 +127,12 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, { struct drm_mode_destroy_dumb *args = data; - if (!dev->driver->dumb_destroy) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_destroy(file_priv, dev, args->handle); + if (dev->driver->dumb_destroy) + return dev->driver->dumb_destroy(file_priv, dev, args->handle); + else + return drm_gem_dumb_destroy(file_priv, dev, args->handle); } |