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authorDaniel Vetter <daniel.vetter@ffwll.ch>2018-11-27 10:19:21 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2018-11-27 15:23:18 +0100
commit39dea70d8a479a1c4578129466da2bc4601e47be (patch)
treeb193a17ef6b5c50144429dbcdb57dc0a24a5a2d6 /include/drm/drm_drv.h
parent02a3ce3c2a67f3c3693029bc650f0c0571d9a3a2 (diff)
downloadlinux-39dea70d8a479a1c4578129466da2bc4601e47be.tar.bz2
drm: Improve dumb callback docs
Noticed while reviewing a patch from Eric. Also add a todo for the dumb_map_offset callbacks (it should be simple to do, but piles of work). Plus fix up vbox, because vbox. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Nicholas Mc Guire <der.herr@hofr.at> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Fabio Rafael da Rosa <fdr@pid42.net> Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20181127091921.8325-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'include/drm/drm_drv.h')
-rw-r--r--include/drm/drm_drv.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 252dd216cc60..35af23f5fa0d 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -527,8 +527,10 @@ struct drm_driver {
* @dumb_map_offset:
*
* Allocate an offset in the drm device node's address space to be able to
- * memory map a dumb buffer. GEM-based drivers must use
- * drm_gem_create_mmap_offset() to implement this.
+ * memory map a dumb buffer.
+ *
+ * The default implementation is drm_gem_create_mmap_offset(). GEM based
+ * drivers must not overwrite this.
*
* Called by the user via ioctl.
*
@@ -548,6 +550,9 @@ struct drm_driver {
*
* Called by the user via ioctl.
*
+ * The default implementation is drm_gem_dumb_destroy(). GEM based drivers
+ * must not overwrite this.
+ *
* Returns:
*
* Zero on success, negative errno on failure.