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authorDmitry Osipenko <digetx@gmail.com>2018-08-07 16:07:11 +0300
committerThierry Reding <treding@nvidia.com>2019-02-07 20:30:24 +0300
commite8bad659381e9d63164f61e3bdf37e1c12274016 (patch)
tree40d5e046c57613b2688f74541048f8e7477a6163 /drivers/gpu/host1x
parent6d6c815daad8ec3469135c310ed39849cbe7752c (diff)
downloadlinux-e8bad659381e9d63164f61e3bdf37e1c12274016.tar.xz
gpu: host1x: Cancel only job that actually got stuck
Host1x doesn't have information about jobs inter-dependency, that is something that will become available once host1x will get a proper jobs scheduler implementation. Currently a hang job causes other unrelated jobs to be canceled, that is a relic from downstream driver which is irrelevant to upstream. Let's cancel only the hanging job and not to touch other jobs in queue. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x')
-rw-r--r--drivers/gpu/host1x/cdma.c33
1 files changed, 7 insertions, 26 deletions
diff --git a/drivers/gpu/host1x/cdma.c b/drivers/gpu/host1x/cdma.c
index 07df85b92ebf..2314f37cb735 100644
--- a/drivers/gpu/host1x/cdma.c
+++ b/drivers/gpu/host1x/cdma.c
@@ -408,13 +408,11 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
}
/*
- * Walk the sync_queue, first incrementing with the CPU syncpts that
- * are partially executed (the first buffer) or fully skipped while
- * still in the current context (slots are also NOP-ed).
+ * Increment with CPU the remaining syncpts of a partially executed job.
*
- * At the point contexts are interleaved, syncpt increments must be
- * done inline with the pushbuffer from a GATHER buffer to maintain
- * the order (slots are modified to be a GATHER of syncpt incrs).
+ * Syncpt increments must be done inline with the pushbuffer from a
+ * GATHER buffer to maintain the order (slots are modified to be a
+ * GATHER of syncpt incrs).
*
* Note: save in restart_addr the location where the timed out buffer
* started in the PB, so we can start the refetch from there (with the
@@ -422,20 +420,15 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
* properly for this buffer and resources are freed.
*/
- dev_dbg(dev, "%s: perform CPU incr on pending same ctx buffers\n",
- __func__);
+ dev_dbg(dev, "%s: perform CPU incr on pending buffers\n", __func__);
if (!list_empty(&cdma->sync_queue))
restart_addr = job->first_get;
else
restart_addr = cdma->last_pos;
- /* do CPU increments as long as this context continues */
- list_for_each_entry_from(job, &cdma->sync_queue, list) {
- /* different context, gets us out of this loop */
- if (job->client != cdma->timeout.client)
- break;
-
+ /* do CPU increments for the remaining syncpts */
+ if (job) {
/* won't need a timeout when replayed */
job->timeout = 0;
@@ -448,20 +441,8 @@ 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);
-
- syncpt_val += syncpt_incrs;
}
- /*
- * The following sumbits from the same client may be dependent on the
- * failed submit and therefore they may fail. Force a small timeout
- * to make the queue cleanup faster.
- */
-
- list_for_each_entry_from(job, &cdma->sync_queue, list)
- if (job->client == cdma->timeout.client)
- job->timeout = min_t(unsigned int, job->timeout, 500);
-
dev_dbg(dev, "%s: finished sync_queue modification\n", __func__);
/* roll back DMAGET and start up channel again */