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drm: document minimum kernel version for DRM_CLIENT_CAP_*

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The kernel versions including the following commits are referenced:

DRM_CLIENT_CAP_STEREO_3D
61d8e32825 ("drm: Add a STEREO_3D capability to the SET_CLIENT_CAP ioctl")

DRM_CLIENT_CAP_UNIVERSAL_PLANES
681e7ec730 ("drm: Allow userspace to ask for universal plane list (v2)")
c7dbc6c9ae ("drm: Remove command line guard for universal planes")

DRM_CLIENT_CAP_ATOMIC
88a48e297b ("drm: add atomic properties")
8b72ce158c ("drm: Always enable atomic API")

DRM_CLIENT_CAP_ASPECT_RATIO
7595bda2fb ("drm: Add DRM client cap for aspect-ratio")

DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
d67b6a2065 ("drm: writeback: Add client capability for exposing writeback connectors")

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/434202/
This commit is contained in:
Simon Ser 2021-05-18 13:11:31 +02:00
parent bbf4627ba6
commit 2e290c8d8d
1 changed files with 19 additions and 0 deletions
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19
include/uapi/drm/drm.h
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@ -780,6 +780,9 @@ struct drm_get_cap {
* If set to 1, the DRM core will expose the stereo 3D capabilities of the
* monitor by advertising the supported 3D layouts in the flags of struct
* drm_mode_modeinfo. See ``DRM_MODE_FLAG_3D_*``.
*
* This capability is always supported for all drivers starting from kernel
* version 3.13.
*/
#define DRM_CLIENT_CAP_STEREO_3D 1
@ -788,6 +791,9 @@ struct drm_get_cap {
*
* If set to 1, the DRM core will expose all planes (overlay, primary, and
* cursor) to userspace.
*
* This capability has been introduced in kernel version 3.15. Starting from
* kernel version 3.17, this capability is always supported for all drivers.
*/
#define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2
@ -797,6 +803,13 @@ struct drm_get_cap {
* If set to 1, the DRM core will expose atomic properties to userspace. This
* implicitly enables &DRM_CLIENT_CAP_UNIVERSAL_PLANES and
* &DRM_CLIENT_CAP_ASPECT_RATIO.
*
* If the driver doesn't support atomic mode-setting, enabling this capability
* will fail with -EOPNOTSUPP.
*
* This capability has been introduced in kernel version 4.0. Starting from
* kernel version 4.2, this capability is always supported for atomic-capable
* drivers.
*/
#define DRM_CLIENT_CAP_ATOMIC 3
@ -805,6 +818,9 @@ struct drm_get_cap {
*
* If set to 1, the DRM core will provide aspect ratio information in modes.
* See ``DRM_MODE_FLAG_PIC_AR_*``.
*
* This capability is always supported for all drivers starting from kernel
* version 4.18.
*/
#define DRM_CLIENT_CAP_ASPECT_RATIO 4
@ -814,6 +830,9 @@ struct drm_get_cap {
* If set to 1, the DRM core will expose special connectors to be used for
* writing back to memory the scene setup in the commit. The client must enable
* &DRM_CLIENT_CAP_ATOMIC first.
*
* This capability is always supported for atomic-capable drivers starting from
* kernel version 4.19.
*/
#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5