diff options
| author | Simon Ser <contact@emersion.fr> | 2022-08-30 17:29:43 +0000 |
|---|---|---|
| committer | Cristian Ciocaltea <cristian.ciocaltea@collabora.com> | 2023-08-08 23:40:19 +0300 |
| commit | 38f2149c7e97f379210c658c21124d547e7b503a (patch) | |
| tree | 3bde3ee8373bb8628b9935d00146946d3f5b3a6f /drivers/gpu | |
| parent | f6de551227de6244119f9f2bea3ae81543ee7c4f (diff) | |
| download | linux-38f2149c7e97f379210c658c21124d547e7b503a.tar.gz | |
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> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Joshua Ashton <joshua@froggi.es> Cc: Melissa Wen <mwen@igalia.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Harry Wentland <hwentlan@amd.com> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Link: https://lore.kernel.org/r/20220830172851.269402-6-contact@emersion.fr
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_ioctl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index ca2a6e6101dc..5b1591e2b46c 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -302,6 +302,11 @@ 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 && + !dev->mode_config.atomic_async_page_flip_not_supported; + break; default: return -EINVAL; } |