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From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Cc: matthew.auld@intel.com
Subject: [PATCH 07/15] drm/i915: Markup potential lock for i915_active
Date: Wed,  3 Jul 2019 10:17:18 +0100	[thread overview]
Message-ID: <20190703091726.11690-7-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20190703091726.11690-1-chris@chris-wilson.co.uk>

Make the lockchains more deterministic via i915_active by flagging the
potential lock.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_active.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 584b247df9bc..13f304a29fc8 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -268,6 +268,8 @@ int i915_active_wait(struct i915_active *ref)
 	int err;
 
 	might_sleep();
+	might_lock(&ref->mutex);
+
 	if (RB_EMPTY_ROOT(&ref->tree))
 		return 0;
 
-- 
2.20.1

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  parent reply	other threads:[~2019-07-03  9:19 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-03  9:17 [PATCH 01/15] drm/i915/selftests: Common live setup/teardown Chris Wilson
2019-07-03  9:17 ` [PATCH 02/15] drm/i915/selftests: Lock the drm_mm while modifying Chris Wilson
2019-07-03  9:50   ` Matthew Auld
2019-07-03  9:17 ` [PATCH 03/15] drm/i915/gt: Use caller provided forcewake for intel_mocs_init_engine Chris Wilson
2019-07-03 11:23   ` Tvrtko Ursulin
2019-07-03 11:47     ` Chris Wilson
2019-07-03 12:01       ` Tvrtko Ursulin
2019-07-03  9:17 ` [PATCH 04/15] drm/i915/gt: Assume we hold forcewake for execlists resume Chris Wilson
2019-07-03 12:03   ` Tvrtko Ursulin
2019-07-03  9:17 ` [PATCH 05/15] drm/i915/gt: Ignore forcewake acquisition for posting_reads Chris Wilson
2019-07-03 11:26   ` Tvrtko Ursulin
2019-07-03 11:44     ` Chris Wilson
2019-07-03  9:17 ` [PATCH 06/15] drm/i915/gem: Free pages before rcu-freeing the object Chris Wilson
2019-07-03 10:37   ` Matthew Auld
2019-07-03  9:17 ` Chris Wilson [this message]
2019-07-03 10:38   ` [PATCH 07/15] drm/i915: Markup potential lock for i915_active Matthew Auld
2019-07-03  9:17 ` [PATCH 08/15] drm/i915: Mark up vma->active as safe for use inside shrinkers Chris Wilson
2019-07-03 10:53   ` Matthew Auld
2019-07-03  9:17 ` [PATCH 09/15] drm/i915/execlists: Hesitate before slicing Chris Wilson
2019-07-03  9:17 ` [PATCH 10/15] drm/i915: Teach execbuffer to take the engine wakeref not GT Chris Wilson
2019-07-03  9:17 ` [PATCH 11/15] drm/i915/gt: Track timeline activeness in enter/exit Chris Wilson
2019-07-03  9:17 ` [PATCH 12/15] drm/i915/gt: Convert timeline tracking to spinlock Chris Wilson
2019-07-03  9:17 ` [PATCH 13/15] drm/i915/gt: Guard timeline pinning with its own mutex Chris Wilson
2019-07-03  9:17 ` [PATCH 14/15] drm/i915: Protect request retirement with timeline->mutex Chris Wilson
2019-07-03  9:17 ` [PATCH 15/15] drm/i915: Replace struct_mutex for batch pool serialisation Chris Wilson
2019-07-03  9:41 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/15] drm/i915/selftests: Common live setup/teardown Patchwork
2019-07-03  9:47 ` ✗ Fi.CI.SPARSE: " Patchwork
2019-07-03  9:48 ` [PATCH 01/15] " Matthew Auld
2019-07-03 10:04   ` Chris Wilson
2019-07-03  9:59 ` ✓ Fi.CI.BAT: success for series starting with [01/15] " Patchwork
2019-07-04  3:22 ` ✗ Fi.CI.IGT: failure " Patchwork

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