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drm/syncobj: add timeline payload query ioctl v6

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user mode can query timeline payload.
v2: check return value of copy_to_user
v3: handle querying entry by entry
v4: rebase on new chain container, simplify interface
v5: query last signaled timeline point, not last point.
v6: add unorder point check

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: Tobias Hector <Tobias.Hector@amd.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/295784/?series=58813&rev=1
This commit is contained in:
Chunming Zhou
2019-04-01 17:50:58 +08:00
committed by Christian König
parent 01d6c35783
commit 27b575a9aa
4 changed files with 76 additions and 0 deletions
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10
include/uapi/drm/drm.h
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@@ -767,6 +767,14 @@ struct drm_syncobj_array {
__u32 pad;
};
struct drm_syncobj_timeline_array {
__u64 handles;
__u64 points;
__u32 count_handles;
__u32 pad;
};
/* Query current scanout sequence number */
struct drm_crtc_get_sequence {
__u32 crtc_id; /* requested crtc_id */
@@ -924,6 +932,8 @@ extern "C" {
#define DRM_IOCTL_MODE_REVOKE_LEASE DRM_IOWR(0xC9, struct drm_mode_revoke_lease)
#define DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT DRM_IOWR(0xCA, struct drm_syncobj_timeline_wait)
#define DRM_IOCTL_SYNCOBJ_QUERY DRM_IOWR(0xCB, struct drm_syncobj_timeline_array)
/**
* Device specific ioctls should only be in their respective headers
* The device specific ioctl range is from 0x40 to 0x9f.