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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>
Cc: "Jack Zhang" <Jack.Zhang1@amd.com>,
	"Daniel Vetter" <daniel.vetter@ffwll.ch>,
	"Intel Graphics Development" <intel-gfx@lists.freedesktop.org>,
	"Luben Tuikov" <luben.tuikov@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Daniel Vetter" <daniel.vetter@intel.com>,
	"Christian König" <christian.koenig@amd.com>
Subject: [PATCH v3 14/20] drm/sched: Check locking in drm_sched_job_await_implicit
Date: Thu,  8 Jul 2021 19:37:48 +0200	[thread overview]
Message-ID: <20210708173754.3877540-15-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20210708173754.3877540-1-daniel.vetter@ffwll.ch>

You really need to hold the reservation here or all kinds of funny
things can happen between grabbing the dependencies and inserting the
new fences.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Jack Zhang <Jack.Zhang1@amd.com>
---
 drivers/gpu/drm/scheduler/sched_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index db326a1ebf3c..67eca88e070e 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -708,6 +708,8 @@ int drm_sched_job_await_implicit(struct drm_sched_job *job,
 	struct dma_fence **fences;
 	unsigned int i, fence_count;
 
+	dma_resv_assert_held(obj->resv);
+
 	if (!write) {
 		struct dma_fence *fence = dma_resv_get_excl_unlocked(obj->resv);
 
-- 
2.32.0


WARNING: multiple messages have this Message-ID (diff)
From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>
Cc: "Andrey Grodzovsky" <andrey.grodzovsky@amd.com>,
	"Jack Zhang" <Jack.Zhang1@amd.com>,
	"Daniel Vetter" <daniel.vetter@ffwll.ch>,
	"Intel Graphics Development" <intel-gfx@lists.freedesktop.org>,
	"Luben Tuikov" <luben.tuikov@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Daniel Vetter" <daniel.vetter@intel.com>,
	"Christian König" <christian.koenig@amd.com>
Subject: [Intel-gfx] [PATCH v3 14/20] drm/sched: Check locking in drm_sched_job_await_implicit
Date: Thu,  8 Jul 2021 19:37:48 +0200	[thread overview]
Message-ID: <20210708173754.3877540-15-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20210708173754.3877540-1-daniel.vetter@ffwll.ch>

You really need to hold the reservation here or all kinds of funny
things can happen between grabbing the dependencies and inserting the
new fences.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Jack Zhang <Jack.Zhang1@amd.com>
---
 drivers/gpu/drm/scheduler/sched_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index db326a1ebf3c..67eca88e070e 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -708,6 +708,8 @@ int drm_sched_job_await_implicit(struct drm_sched_job *job,
 	struct dma_fence **fences;
 	unsigned int i, fence_count;
 
+	dma_resv_assert_held(obj->resv);
+
 	if (!write) {
 		struct dma_fence *fence = dma_resv_get_excl_unlocked(obj->resv);
 
-- 
2.32.0

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2021-07-08 17:38 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-08 17:37 [PATCH v3 00/20] drm/sched dependency tracking and dma-resv fixes Daniel Vetter
2021-07-08 17:37 ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 01/20] drm/sched: entity->rq selection cannot fail Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-09  6:53   ` Christian König
2021-07-09  6:53     ` [Intel-gfx] " Christian König
2021-07-09  7:14     ` Daniel Vetter
2021-07-09  7:14       ` [Intel-gfx] " Daniel Vetter
2021-07-09  7:23       ` Christian König
2021-07-09  7:23         ` [Intel-gfx] " Christian König
2021-07-09  8:00         ` Daniel Vetter
2021-07-09  8:00           ` [Intel-gfx] " Daniel Vetter
2021-07-09  8:11           ` Christian König
2021-07-09  8:11             ` [Intel-gfx] " Christian König
2021-07-08 17:37 ` [PATCH v3 02/20] drm/sched: Split drm_sched_job_init Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 03/20] drm/sched: Barriers are needed for entity->last_scheduled Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 18:56   ` Andrey Grodzovsky
2021-07-08 18:56     ` [Intel-gfx] " Andrey Grodzovsky
2021-07-08 19:53     ` Daniel Vetter
2021-07-08 19:53       ` [Intel-gfx] " Daniel Vetter
2021-07-08 21:54   ` [PATCH] " Daniel Vetter
2021-07-08 21:54     ` [Intel-gfx] " Daniel Vetter
2021-07-09  6:57     ` Christian König
2021-07-09  6:57       ` [Intel-gfx] " Christian König
2021-07-09  7:40       ` Daniel Vetter
2021-07-09  7:40         ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 04/20] drm/sched: Add dependency tracking Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 05/20] drm/sched: drop entity parameter from drm_sched_push_job Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 06/20] drm/sched: improve docs around drm_sched_entity Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 07/20] drm/panfrost: use scheduler dependency tracking Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-12  9:19   ` Steven Price
2021-07-12  9:19     ` [Intel-gfx] " Steven Price
2021-07-12  9:19     ` Steven Price
2021-07-08 17:37 ` [PATCH v3 08/20] drm/lima: " Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 09/20] drm/v3d: Move drm_sched_job_init to v3d_job_init Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 10/20] drm/v3d: Use scheduler dependency handling Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 11/20] drm/etnaviv: " Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 12/20] drm/gem: Delete gem array fencing helpers Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 13/20] drm/sched: Don't store self-dependencies Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` Daniel Vetter [this message]
2021-07-08 17:37   ` [Intel-gfx] [PATCH v3 14/20] drm/sched: Check locking in drm_sched_job_await_implicit Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 15/20] drm/msm: Don't break exclusive fence ordering Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 16/20] drm/msm: always wait for the exclusive fence Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-09  8:48   ` Christian König
2021-07-09  8:48     ` [Intel-gfx] " Christian König
2021-07-09  8:48     ` Christian König
2021-07-09  9:15     ` Daniel Vetter
2021-07-09  9:15       ` [Intel-gfx] " Daniel Vetter
2021-07-09  9:15       ` Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 17/20] drm/etnaviv: Don't break exclusive fence ordering Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 18/20] drm/i915: delete exclude argument from i915_sw_fence_await_reservation Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 19/20] drm/i915: Don't break exclusive fence ordering Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37 ` [PATCH v3 20/20] dma-resv: Give the docs a do-over Daniel Vetter
2021-07-08 17:37   ` [Intel-gfx] " Daniel Vetter
2021-07-08 17:37   ` Daniel Vetter
2021-07-09  0:03 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/sched dependency tracking and dma-resv fixes (rev2) Patchwork
2021-07-09  0:29 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-07-09 15:27 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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