From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Subject: [Intel-gfx] [PATCH 04/33] drm/i915/gt: Check for a completed last request once
Date: Wed, 1 Jul 2020 09:40:24 +0100 [thread overview]
Message-ID: <20200701084053.6086-4-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20200701084053.6086-1-chris@chris-wilson.co.uk>
Pull the repeated check for the last active request being completed to a
single spot, when deciding whether or not execlist preemption is
required.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 4eb397b0e14d..7bdbfac26d7b 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -2137,12 +2137,11 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
*/
if ((last = *active)) {
- if (need_preempt(engine, last, rb)) {
- if (i915_request_completed(last)) {
- tasklet_hi_schedule(&execlists->tasklet);
- return;
- }
+ if (i915_request_completed(last) &&
+ !list_is_last(&last->sched.link, &engine->active.requests))
+ return;
+ if (need_preempt(engine, last, rb)) {
ENGINE_TRACE(engine,
"preempting last=%llx:%lld, prio=%d, hint=%d\n",
last->fence.context,
@@ -2170,11 +2169,6 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
last = NULL;
} 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,
--
2.20.1
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next prev parent reply other threads:[~2020-07-01 8:41 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 8:40 [Intel-gfx] [PATCH 01/33] drm/i915/gt: Harden the heartbeat against a stuck driver Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 02/33] drm/i915/gt: Move the heartbeat into the highprio system wq Chris Wilson
2020-07-02 9:33 ` Mika Kuoppala
2020-07-01 8:40 ` [Intel-gfx] [PATCH 03/33] drm/i915/gt: Decouple completed requests on unwind Chris Wilson
2020-07-01 8:40 ` Chris Wilson [this message]
2020-07-02 15:46 ` [Intel-gfx] [PATCH 04/33] drm/i915/gt: Check for a completed last request once Mika Kuoppala
2020-07-02 15:53 ` Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 05/33] drm/i915/gt: Replace direct submit with direct call to tasklet Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 06/33] drm/i915/gt: Use virtual_engine during execlists_dequeue Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 07/33] drm/i915/gt: Decouple inflight virtual engines Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 08/33] drm/i915/gt: Defer schedule_out until after the next dequeue Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 09/33] drm/i915/gt: Resubmit the virtual engine on schedule-out Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 10/33] drm/i915/gt: Simplify virtual engine handling for execlists_hold() Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 11/33] drm/i915/gt: ce->inflight updates are now serialised Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 12/33] drm/i915/gt: Drop atomic for engine->fw_active tracking Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 13/33] drm/i915/gt: Extract busy-stats for ring-scheduler Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 14/33] drm/i915/gt: Convert stats.active to plain unsigned int Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 15/33] drm/i915: Lift waiter/signaler iterators Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 16/33] drm/i915: Strip out internal priorities Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 17/33] drm/i915: Remove I915_USER_PRIORITY_SHIFT Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 18/33] drm/i915: Replace engine->schedule() with a known request operation Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 19/33] drm/i915/gt: Do not suspend bonded requests if one hangs Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 20/33] drm/i915: Teach the i915_dependency to use a double-lock Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 21/33] drm/i915: Restructure priority inheritance Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 22/33] drm/i915/gt: Remove timeslice suppression Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 23/33] drm/i915: Fair low-latency scheduling Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 24/33] drm/i915/gt: Specify a deadline for the heartbeat Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 25/33] drm/i915: Replace the priority boosting for the display with a deadline Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 26/33] drm/i915: Move saturated workload detection to the GT Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 27/33] Restore "drm/i915: drop engine_pin/unpin_breadcrumbs_irq" Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 28/33] drm/i915/gt: Couple tasklet scheduling for all CS interrupts Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 29/33] drm/i915/gt: Support creation of 'internal' rings Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 30/33] drm/i915/gt: Use client timeline address for seqno writes Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 31/33] drm/i915/gt: Infrastructure for ring scheduling Chris Wilson
2020-07-01 19:42 ` kernel test robot
2020-07-01 8:40 ` [Intel-gfx] [PATCH 32/33] drm/i915/gt: Implement ring scheduler for gen6/7 Chris Wilson
2020-07-01 8:40 ` [Intel-gfx] [PATCH 33/33] drm/i915/gt: Enable ring scheduling " Chris Wilson
2020-07-01 9:37 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/33] drm/i915/gt: Harden the heartbeat against a stuck driver Patchwork
2020-07-01 9:38 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-07-01 9:58 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-07-01 14:36 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-07-02 9:39 ` [Intel-gfx] [PATCH 01/33] " Mika Kuoppala
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