From: Chia-I Wu <olvaffe@gmail.com>
To: Boris Brezillon <boris.brezillon@collabora.com>,
Steven Price <steven.price@arm.com>,
Liviu Dudau <liviu.dudau@arm.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] drm/panthor: validate group queue count
Date: Tue, 2 Sep 2025 12:20:01 -0700 [thread overview]
Message-ID: <20250902192001.409738-1-olvaffe@gmail.com> (raw)
A panthor group can have at most MAX_CS_PER_CSG panthor queues.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
---
drivers/gpu/drm/panthor/panthor_sched.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/panthor/panthor_sched.c
index ba5dc3e443d9c..249ab889ca91f 100644
--- a/drivers/gpu/drm/panthor/panthor_sched.c
+++ b/drivers/gpu/drm/panthor/panthor_sched.c
@@ -3473,6 +3473,9 @@ int panthor_group_create(struct panthor_file *pfile,
hweight64(group_args->tiler_core_mask) < group_args->max_tiler_cores)
return -EINVAL;
+ if (group_args->queues.count > MAX_CS_PER_CSG)
+ return -EINVAL;
+
group = kzalloc(sizeof(*group), GFP_KERNEL);
if (!group)
return -ENOMEM;
--
2.51.0.338.gd7d06c2dae-goog
next reply other threads:[~2025-09-02 19:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 19:20 Chia-I Wu [this message]
2025-09-03 7:38 ` [PATCH] drm/panthor: validate group queue count Boris Brezillon
2025-09-03 11:37 ` Steven Price
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