Reviewed-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
On 05.08.2018 20:01, Dmitry Osipenko wrote:
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@xxxxxxxxx>
---
drivers/gpu/host1x/cdma.c | 30 ++++++------------------------
1 file changed, 6 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/host1x/cdma.c b/drivers/gpu/host1x/cdma.c
index 91df51e631b2..4d94af4a315f 100644
--- a/drivers/gpu/host1x/cdma.c
+++ b/drivers/gpu/host1x/cdma.c
@@ -348,13 +348,11 @@ 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
@@ -370,12 +368,8 @@ void host1x_cdma_update_sync_queue(struct host1x_cdma *cdma,
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;
@@ -388,20 +382,8 @@ 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 */
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