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| author | Noralf Trønnes <noralf@tronnes.org> | 2018-07-03 19:03:47 +0300 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2018-07-10 15:51:37 +0300 |
| commit | c76f0f7cb546b661b5e0ac769850a5c854927f65 (patch) | |
| tree | 2435747fe4864fdd2406be8bcd089fb9e9eda33b /include/drm/drm_device.h | |
| parent | 5ba57babcb40227ceb70d9bc71afa57e004f8417 (diff) | |
| download | linux-c76f0f7cb546b661b5e0ac769850a5c854927f65.tar.xz | |
drm: Begin an API for in-kernel clients
This the beginning of an API for in-kernel clients.
First out is a way to get a framebuffer backed by a dumb buffer.
Only GEM drivers are supported.
The original idea of using an exported dma-buf was dropped because it
also creates an anonomous file descriptor which doesn't work when the
buffer is created from a kernel thread. The easy way out is to use
drm_driver.gem_prime_vmap to get the virtual address, which requires a
GEM object. This excludes the vmwgfx driver which is the only non-GEM
driver apart from the legacy ones. A solution for vmwgfx will have to be
worked out later if it wants to support the client API which it probably
will when we have a bootsplash client.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-2-noralf@tronnes.org
Diffstat (limited to 'include/drm/drm_device.h')
| -rw-r--r-- | include/drm/drm_device.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index 858ba19a3e29..f9c6e0e3aec7 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -74,6 +74,27 @@ struct drm_device { struct mutex filelist_mutex; struct list_head filelist; + /** + * @filelist_internal: + * + * List of open DRM files for in-kernel clients. Protected by @filelist_mutex. + */ + struct list_head filelist_internal; + + /** + * @clientlist_mutex: + * + * Protects @clientlist access. + */ + struct mutex clientlist_mutex; + + /** + * @clientlist: + * + * List of in-kernel clients. Protected by @clientlist_mutex. + */ + struct list_head clientlist; + /** \name Memory management */ /*@{ */ struct list_head maplist; /**< Linked list of regions */ |