diff options
author | Simon Ser <contact@emersion.fr> | 2023-11-22 19:19:40 +0300 |
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committer | Simon Ser <contact@emersion.fr> | 2023-11-23 19:13:13 +0300 |
commit | e4d983acffff270ccee417445a69b9ed198658b1 (patch) | |
tree | 1b7392b11d92122926c345d3cf65377e5d13fb6d /drivers/gpu/drm/drm_ioctl.c | |
parent | 4b4af74ab9719d17538a97f43137e93296ec7437 (diff) | |
download | linux-e4d983acffff270ccee417445a69b9ed198658b1.tar.xz |
drm: introduce DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP
This new kernel capability indicates whether async page-flips are
supported via the atomic uAPI. DRM clients can use it to check
for support before feeding DRM_MODE_PAGE_FLIP_ASYNC to the kernel.
Make it clear that DRM_CAP_ASYNC_PAGE_FLIP is for legacy uAPI only.
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20231122161941.320564-4-andrealmeid@igalia.com
Diffstat (limited to 'drivers/gpu/drm/drm_ioctl.c')
-rw-r--r-- | drivers/gpu/drm/drm_ioctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 44fda68c28ae..f461ed862480 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -301,6 +301,10 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_ case DRM_CAP_CRTC_IN_VBLANK_EVENT: req->value = 1; break; + case DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP: + req->value = drm_core_check_feature(dev, DRIVER_ATOMIC) && + dev->mode_config.async_page_flip; + break; default: return -EINVAL; } |