diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-03-21 20:12:16 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-03-22 19:45:00 +0200 |
| commit | 6a0f9ebfc5e753bb948c13353615324462d73795 (patch) | |
| tree | 1ccb2551fc4bd3293ce63a995c2f3301ee4690a9 /include/drm | |
| parent | drm: Remove fb hsub/vsub alignment requirement (diff) | |
| download | wireguard-linux-6a0f9ebfc5e753bb948c13353615324462d73795.tar.xz wireguard-linux-6a0f9ebfc5e753bb948c13353615324462d73795.zip | |
drm: Add mode_config .get_format_info() hook
Allow drivers to return a custom drm_format_info structure for special
fb layouts. We'll use this for the compression control surface in i915.
v2: Fix drm_get_format_info() kernel doc (Laurent)
Don't pass 'dev' to the new hook (Laurent)
v3: s/compresssion/compression/ (Ben)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-4-ville.syrjala@linux.intel.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_fourcc.h | 6 | ||||
| -rw-r--r-- | include/drm/drm_mode_config.h | 14 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index fcc08da850c8..6942e84b6edd 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -25,6 +25,9 @@ #include <linux/types.h> #include <uapi/drm/drm_fourcc.h> +struct drm_device; +struct drm_mode_fb_cmd2; + /** * struct drm_format_info - information about a DRM format * @format: 4CC format identifier (DRM_FORMAT_*) @@ -55,6 +58,9 @@ struct drm_format_name_buf { const struct drm_format_info *__drm_format_info(u32 format); const struct drm_format_info *drm_format_info(u32 format); +const struct drm_format_info * +drm_get_format_info(struct drm_device *dev, + const struct drm_mode_fb_cmd2 *mode_cmd); uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); int drm_format_num_planes(uint32_t format); int drm_format_plane_cpp(uint32_t format, int plane); diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index ea169a90b3c4..579070ff06ef 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -34,6 +34,7 @@ struct drm_file; struct drm_device; struct drm_atomic_state; struct drm_mode_fb_cmd2; +struct drm_format_info; /** * struct drm_mode_config_funcs - basic driver provided mode setting functions @@ -70,6 +71,19 @@ struct drm_mode_config_funcs { const struct drm_mode_fb_cmd2 *mode_cmd); /** + * @get_format_info: + * + * Allows a driver to return custom format information for special + * fb layouts (eg. ones with auxiliary compression control planes). + * + * RETURNS: + * + * The format information specific to the given fb metadata, or + * NULL if none is found. + */ + const struct drm_format_info *(*get_format_info)(const struct drm_mode_fb_cmd2 *mode_cmd); + + /** * @output_poll_changed: * * Callback used by helpers to inform the driver of output configuration |