2 Jun
2020
2 Jun
'20
11:08 p.m.
Hi all,
Today's linux-next merge of the drm-intel-fixes tree got a conflict in:
drivers/gpu/drm/i915/gt/intel_lrc.c
between commit:
f53ae29c0ea1 ("drm/i915/gt: Include a few tracek for timeslicing")
from Linus' tree and commit:
00febf644648 ("drm/i915/gt: Incorporate the virtual engine into timeslicing")
from the drm-intel-fixes tree.
I fixed it up (see below) and can carry the fix as necessary. This is now fixed as far as linux-next is concerned, but any non trivial conflicts should be mentioned to your upstream maintainer when your tree is submitted for merging. You may also want to consider cooperating with the maintainer of the conflicting tree to minimise any particularly complex conflicts.
--
Cheers,
Stephen Rothwell
diff --cc drivers/gpu/drm/i915/gt/intel_lrc.c
index 87e6c5bdd2dc,e77f89b43e5f..000000000000
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@@ -1971,20 -1853,12 +1990,19 @@@ static void set_timeslice(struct intel_
if (!intel_engine_has_timeslices(engine))
return;
- set_timer_ms(&engine->execlists.timer, active_timeslice(engine));
+ duration = active_timeslice(engine);
+ ENGINE_TRACE(engine, "bump timeslicing, interval:%lu", duration);
+
+ set_timer_ms(&engine->execlists.timer, duration);
}
- static void start_timeslice(struct intel_engine_cs *engine)
+ static void start_timeslice(struct intel_engine_cs *engine, int prio)
{
struct intel_engine_execlists *execlists = &engine->execlists;
- const int prio = queue_prio(execlists);
+ unsigned long duration;
+
+ if (!intel_engine_has_timeslices(engine))
+ return;
WRITE_ONCE(execlists->switch_priority_hint, prio);
if (prio == INT_MIN)
@@@ -2140,13 -1994,8 +2158,13 @@@ static void execlists_dequeue(struct in
__unwind_incomplete_requests(engine);
last = NULL;
- } else if (need_timeslice(engine, last) &&
+ } else if (need_timeslice(engine, last, rb) &&
timeslice_expired(execlists, last)) {
+ if (i915_request_completed(last)) {
+ tasklet_hi_schedule(&execlists->tasklet);
+ return;
+ }
+
ENGINE_TRACE(engine,
"expired last=%llx:%lld, prio=%d, hint=%d, yield?=%s\n",
last->fence.context,