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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>,
	"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 v2 11/11] drm/sched: Check locking in drm_sched_job_await_implicit
Date: Fri,  2 Jul 2021 23:38:15 +0200	[thread overview]
Message-ID: <20210702213815.2249499-12-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20210702213815.2249499-1-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 de76f7e14e0d..47f869aff335 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -705,6 +705,8 @@ 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.rc2


      parent reply	other threads:[~2021-07-02 21:38 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02 21:38 [PATCH v2 00/11] drm/scheduler dependency tracking Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 01/11] drm/sched: Split drm_sched_job_init Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-07  9:29   ` Christian König
2021-07-07  9:29     ` Christian König
2021-07-07 11:14     ` Daniel Vetter
2021-07-07 11:14       ` Daniel Vetter
2021-07-07 11:57       ` Christian König
2021-07-07 11:57         ` Christian König
2021-07-07 12:13         ` Daniel Vetter
2021-07-07 12:13           ` Daniel Vetter
2021-07-07 12:58           ` Christian König
2021-07-07 12:58             ` Christian König
2021-07-07 16:32             ` Daniel Vetter
2021-07-07 16:32               ` Daniel Vetter
2021-07-08  6:56               ` Christian König
2021-07-08  6:56                 ` Christian König
2021-07-08  7:09                 ` Daniel Vetter
2021-07-08  7:09                   ` Daniel Vetter
2021-07-08  7:19                   ` Daniel Vetter
2021-07-08  7:19                     ` Daniel Vetter
2021-07-08  7:53                     ` Christian König
2021-07-08  7:53                       ` Christian König
2021-07-08 10:02                       ` Daniel Vetter
2021-07-08 10:02                         ` Daniel Vetter
2021-07-08 10:54                         ` Christian König
2021-07-08 10:54                           ` Christian König
2021-07-08 11:20                           ` Daniel Vetter
2021-07-08 11:20                             ` Daniel Vetter
2021-07-08 11:28                             ` Christian König
2021-07-08 11:28                               ` Christian König
2021-07-02 21:38 ` [PATCH v2 02/11] drm/sched: Add dependency tracking Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-07  9:26   ` [Linaro-mm-sig] " Christian König
2021-07-07  9:26     ` Christian König
2021-07-07 11:23     ` Daniel Vetter
2021-07-07 11:23       ` Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 03/11] drm/sched: drop entity parameter from drm_sched_push_job Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 04/11] drm/panfrost: use scheduler dependency tracking Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 05/11] drm/lima: " Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 06/11] drm/v3d: Move drm_sched_job_init to v3d_job_init Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 07/11] drm/v3d: Use scheduler dependency handling Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 08/11] drm/etnaviv: " Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-07  9:08   ` Lucas Stach
2021-07-07  9:08     ` Lucas Stach
2021-07-07 11:26     ` Daniel Vetter
2021-07-07 11:26       ` Daniel Vetter
2021-07-07 11:32       ` Daniel Vetter
2021-07-07 11:32         ` Daniel Vetter
2021-07-07 12:34         ` Lucas Stach
2021-07-07 12:34           ` Lucas Stach
2021-07-02 21:38 ` [PATCH v2 09/11] drm/gem: Delete gem array fencing helpers Daniel Vetter
2021-07-02 21:38   ` Daniel Vetter
2021-07-02 21:38 ` [PATCH v2 10/11] drm/sched: Don't store self-dependencies Daniel Vetter
2021-07-02 21:38 ` Daniel Vetter [this message]

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