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panfrost: signal syncobj if nothing is going to be flushed

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When nothing is going to be flushed, the kernel will get no job that
signals the syncobj.

Signal it by ourselves, otherwise it will never get signaled.

Closes: #3371

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6190>
This commit is contained in:
Icenowy Zheng 2020-08-06 04:48:05 +08:00 • committed by Marge Bot
parent c6aadbae71
commit 9e397956b0
1 changed files with 4 additions and 1 deletions
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5
src/gallium/drivers/panfrost/pan_job.c
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@ -1076,8 +1076,11 @@ panfrost_batch_submit(struct panfrost_batch *batch, uint32_t out_sync)
int ret;
/* Nothing to do! */
if (!batch->scoreboard.first_job && !batch->clear)
if (!batch->scoreboard.first_job && !batch->clear) {
if (out_sync)
drmSyncobjSignal(dev->fd, &out_sync, 1);
goto out;
}
panfrost_batch_draw_wallpaper(batch);