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modesetting: Implement an ms_drm_abort_seq() function.

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This is a specialization of ms_drm_abort that matches based on the drm
event queue's sequence number.

Based on code by Keith Packard.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke 2015-01-26 21:25:58 -08:00 committed by Dave Airlie
parent b8ccc5d36b
commit bf262b4300
2 changed files with 17 additions and 0 deletions
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1
hw/xfree86/drivers/modesetting/driver.h
View File

@ -117,6 +117,7 @@ uint32_t ms_drm_queue_alloc(xf86CrtcPtr crtc,
void ms_drm_abort(ScrnInfoPtr scrn,
Bool (*match)(void *data, void *match_data),
void *match_data);
void ms_drm_abort_seq(ScrnInfoPtr scrn, uint32_t seq);
Bool ms_crtc_on(xf86CrtcPtr crtc);

16
hw/xfree86/drivers/modesetting/vblank.c
View File

@ -323,6 +323,22 @@ ms_drm_abort_scrn(ScrnInfoPtr scrn)
}
}
/**
* Abort by drm queue sequence number.
*/
void
ms_drm_abort_seq(ScrnInfoPtr scrn, uint32_t seq)
{
struct ms_drm_queue *q, *tmp;
xorg_list_for_each_entry_safe(q, tmp, &ms_drm_queue, list) {
if (q->seq == seq) {
ms_drm_abort_one(q);
break;
}
}
}
/*
* Externally usable abort function that uses a callback to match a single
* queued entry to abort