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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 1/2] drm/i915/gt: Do not suspend bonded requests if one hangs
Date: Wed, 20 Jan 2021 12:17:17 +0000	[thread overview]
Message-ID: <20210120121718.26435-1-chris@chris-wilson.co.uk> (raw)

Treat the dependency between bonded requests as weak and leave the
remainder of the pair on the GPU if one hangs.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index 740ff05fd692..524c8b54d220 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -1990,6 +1990,9 @@ static void __execlists_hold(struct i915_request *rq)
 			struct i915_request *w =
 				container_of(p->waiter, typeof(*w), sched);
 
+			if (p->flags & I915_DEPENDENCY_WEAK)
+				continue;
+
 			/* Leave semaphores spinning on the other engines */
 			if (w->engine != rq->engine)
 				continue;
@@ -2088,6 +2091,9 @@ static void __execlists_unhold(struct i915_request *rq)
 			struct i915_request *w =
 				container_of(p->waiter, typeof(*w), sched);
 
+			if (p->flags & I915_DEPENDENCY_WEAK)
+				continue;
+
 			/* Propagate any change in error status */
 			if (rq->fence.error)
 				i915_request_set_error_once(w, rq->fence.error);
-- 
2.20.1

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             reply	other threads:[~2021-01-20 12:17 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-20 12:17 Chris Wilson [this message]
2021-01-20 12:17 ` [Intel-gfx] [PATCH 2/2] drm/i915/gt: Skip over completed active execlists, again Chris Wilson
2021-01-21 11:47   ` Mika Kuoppala
2021-01-20 19:16 ` [Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [1/2] drm/i915/gt: Do not suspend bonded requests if one hangs Patchwork
2021-01-20 22:12 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-01-21 11:32 ` [Intel-gfx] [PATCH 1/2] " Mika Kuoppala
  -- strict thread matches above, loose matches on Subject: below --
2021-01-18 12:43 Chris Wilson

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