diff options
| author | Simon Ser <contact@emersion.fr> | 2021-05-18 14:11:31 +0300 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2021-05-31 19:57:22 +0300 |
| commit | 2e290c8d8d29278b9a20e2765ab8f6df02f2e707 (patch) | |
| tree | 7c5a6c6745f6cc57d36a4471a6ccab188b70d140 /include | |
| parent | bbf4627ba6415711da94f8106a7de993c49372a6 (diff) | |
| download | linux-2e290c8d8d29278b9a20e2765ab8f6df02f2e707.tar.xz | |
drm: document minimum kernel version for DRM_CLIENT_CAP_*
The kernel versions including the following commits are referenced:
DRM_CLIENT_CAP_STEREO_3D
61d8e3282541 ("drm: Add a STEREO_3D capability to the SET_CLIENT_CAP ioctl")
DRM_CLIENT_CAP_UNIVERSAL_PLANES
681e7ec73044 ("drm: Allow userspace to ask for universal plane list (v2)")
c7dbc6c9ae5c ("drm: Remove command line guard for universal planes")
DRM_CLIENT_CAP_ATOMIC
88a48e297b3a ("drm: add atomic properties")
8b72ce158cf0 ("drm: Always enable atomic API")
DRM_CLIENT_CAP_ASPECT_RATIO
7595bda2fb43 ("drm: Add DRM client cap for aspect-ratio")
DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
d67b6a206507 ("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/
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/drm/drm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 87878aea4526..d043752a74cf 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -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 |