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gpu: host1x: Don't complete a completed job

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There is a chance that the last job has been completed at the time of
CDMA timeout handler invocation. In this case there is no need to complete
the completed job.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2018-08-07 16:07:12 +03:00 committed by Thierry Reding
parent e8bad65938
commit 5d6f043685
1 changed files with 14 additions and 8 deletions
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22
drivers/gpu/host1x/cdma.c
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@ -383,7 +383,7 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
{
struct host1x *host1x = cdma_to_host1x(cdma);
u32 restart_addr, syncpt_incrs, syncpt_val;
struct host1x_job *job = NULL;
struct host1x_job *job;
syncpt_val = host1x_syncpt_load(cdma->timeout.syncpt);
@ -402,11 +402,16 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
list_for_each_entry(job, &cdma->sync_queue, list) {
if (syncpt_val < job->syncpt_end)
break;
goto syncpt_incr;
host1x_job_dump(dev, job);
}
/* all jobs have been completed */
job = NULL;
syncpt_incr:
/*
* Increment with CPU the remaining syncpts of a partially executed job.
*
@ -419,16 +424,16 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
* modified NOP-ed PB slots). This lets things appear to have completed
* properly for this buffer and resources are freed.
*/
dev_dbg(dev, "%s: perform CPU incr on pending buffers\n", __func__);
if (!list_empty(&cdma->sync_queue))
if (job)
restart_addr = job->first_get;
else
restart_addr = cdma->last_pos;
/* do CPU increments for the remaining syncpts */
if (job) {
dev_dbg(dev, "%s: perform CPU incr on pending buffers\n",
__func__);
/* won't need a timeout when replayed */
job->timeout = 0;
@ -441,9 +446,10 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
host1x_hw_cdma_timeout_cpu_incr(host1x, cdma, job->first_get,
syncpt_incrs, job->syncpt_end,
job->num_slots);
}
dev_dbg(dev, "%s: finished sync_queue modification\n", __func__);
dev_dbg(dev, "%s: finished sync_queue modification\n",
__func__);
}
/* roll back DMAGET and start up channel again */
host1x_hw_cdma_resume(host1x, cdma, restart_addr);