diff options
| author | Keith Packard <keithp@keithp.com> | 2013-07-22 18:50:00 -0700 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-08-30 09:25:13 +1000 |
| commit | 62f2104f3fc11c4cfd1307429cb955bfa48dcb37 (patch) | |
| tree | f5a4e80d68e100cc6818a6810d07f28135ddd8c5 | |
| parent | 9bba0c42ec81748462e58b18095c0eef8707cc9a (diff) | |
| download | linux-62f2104f3fc11c4cfd1307429cb955bfa48dcb37.tar.bz2 | |
drm: Advertise async page flip ability through GETCAP ioctl
Let applications know whether the kernel supports asynchronous page
flipping.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_ioctl.c | 3 | ||||
| -rw-r--r-- | include/drm/drm_crtc.h | 3 | ||||
| -rw-r--r-- | include/uapi/drm/drm.h | 1 |
4 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 4f35be732b83..452591b67996 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3508,6 +3508,9 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, page_flip->reserved != 0) return -EINVAL; + if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) + return -EINVAL; + obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) return -EINVAL; diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index cffc7c0e1171..07247e2855a2 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -293,6 +293,9 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) case DRM_CAP_TIMESTAMP_MONOTONIC: req->value = drm_timestamp_monotonic; break; + case DRM_CAP_ASYNC_PAGE_FLIP: + req->value = dev->mode_config.async_page_flip; + break; default: return -EINVAL; } diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 0c7fec5b8fef..78ca1512c73f 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -842,6 +842,9 @@ struct drm_mode_config { /* dumb ioctl parameters */ uint32_t preferred_depth, prefer_shadow; + + /* whether async page flip is supported or not */ + bool async_page_flip; }; #define obj_to_crtc(x) container_of(x, struct drm_crtc, base) diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 272580ca320f..ece867889cc7 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -780,6 +780,7 @@ struct drm_event_vblank { #define DRM_CAP_DUMB_PREFER_SHADOW 0x4 #define DRM_CAP_PRIME 0x5 #define DRM_CAP_TIMESTAMP_MONOTONIC 0x6 +#define DRM_CAP_ASYNC_PAGE_FLIP 0x7 #define DRM_PRIME_CAP_IMPORT 0x1 #define DRM_PRIME_CAP_EXPORT 0x2 |