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sna: Prevent 60Hz wakeups if the client stops in mid-render 

Only continue to wake up if the scanout remains active.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-12 11:22:06 +00:00
parent 1c0e9916ca
commit 2a22990968
1 changed files with 11 additions and 5 deletions
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16
src/sna/sna_accel.c
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@ -9757,20 +9757,26 @@ static void _sna_accel_disarm_timer(struct sna *sna, int id) { }
static bool sna_accel_flush(struct sna *sna)
{
struct sna_pixmap *priv = sna_accel_scanout(sna);
bool nothing_to_do = priv->cpu_damage == NULL && sna->kgem.nbatch == 0;
bool need_throttle = priv->gpu_bo->rq;
bool busy = priv->cpu_damage || need_throttle;
DBG(("%s (time=%ld), nothing_to_do=%d, busy? %d\n",
DBG(("%s (time=%ld), cpu damage? %p, exec? %d nbatch=%d, busy? %d, need_throttle=%d\n",
__FUNCTION__, (long)GetTimeInMillis(),
nothing_to_do, sna->kgem.busy));
priv->cpu_damage,
priv->gpu_bo->exec != NULL,
sna->kgem.nbatch,
sna->kgem.busy, need_throttle));
if (nothing_to_do && !sna->kgem.busy)
if (!sna->kgem.busy && !busy)
_sna_accel_disarm_timer(sna, FLUSH_TIMER);
sna->kgem.busy = busy;
if (priv->cpu_damage)
sna_pixmap_move_to_gpu(priv->pixmap, MOVE_READ);
sna->kgem.busy = !nothing_to_do;
kgem_bo_flush(&sna->kgem, priv->gpu_bo);
sna->kgem.flush_now = 0;
return need_throttle;
}