diff options
| author | Simon Ser <contact@emersion.fr> | 2023-07-12 20:32:00 +0200 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2023-08-03 12:29:13 +0200 |
| commit | ad9ee11fdf113f966e338a3f796efd326fc6f502 (patch) | |
| tree | 6e9d16aa9b9b1f9b39cdca923fbd232791ee6cf8 | |
| parent | drm/doc: document drm_event and its types (diff) | |
| download | linux-ad9ee11fdf113f966e338a3f796efd326fc6f502.tar.xz linux-ad9ee11fdf113f966e338a3f796efd326fc6f502.zip | |
drm/doc: document that PRIME import/export is always supported
Since commit 6b85aa68d9d5 ("drm: Enable PRIME import/export for all
drivers"), import/export is always supported. Document this so that
user-space knows what to expect.
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Jeffrey Hugo <quic_jhugo@quicinc.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230712183156.191445-1-contact@emersion.fr
| -rw-r--r-- | include/uapi/drm/drm.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index ccf6ddb9560e..794c1d857677 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -673,6 +673,9 @@ struct drm_gem_open { * Bitfield of supported PRIME sharing capabilities. See &DRM_PRIME_CAP_IMPORT * and &DRM_PRIME_CAP_EXPORT. * + * Starting from kernel version 6.6, both &DRM_PRIME_CAP_IMPORT and + * &DRM_PRIME_CAP_EXPORT are always advertised. + * * PRIME buffers are exposed as dma-buf file descriptors. * See :ref:`prime_buffer_sharing`. */ @@ -682,6 +685,8 @@ struct drm_gem_open { * * If this bit is set in &DRM_CAP_PRIME, the driver supports importing PRIME * buffers via the &DRM_IOCTL_PRIME_FD_TO_HANDLE ioctl. + * + * Starting from kernel version 6.6, this bit is always set in &DRM_CAP_PRIME. */ #define DRM_PRIME_CAP_IMPORT 0x1 /** @@ -689,6 +694,8 @@ struct drm_gem_open { * * If this bit is set in &DRM_CAP_PRIME, the driver supports exporting PRIME * buffers via the &DRM_IOCTL_PRIME_HANDLE_TO_FD ioctl. + * + * Starting from kernel version 6.6, this bit is always set in &DRM_CAP_PRIME. */ #define DRM_PRIME_CAP_EXPORT 0x2 /** |