From: Boris Brezillon <boris.brezillon@collabora.com>
To: Steven Price <steven.price@arm.com>, Liviu Dudau <liviu.dudau@arm.com>
Cc: 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,
Boris Brezillon <boris.brezillon@collabora.com>,
sashiko-bot@kernel.org
Subject: [PATCH 00/12] drm/panthor: Fix the unplug logic
Date: Tue, 04 Aug 2026 12:09:39 +0200 [thread overview]
Message-ID: <20260804-panthor-unplug-fixes-v1-0-abbbd2d41b13@collabora.com> (raw)
The current unplug logic is broken in multiple ways. This is an attempt
at addressing the various problems found along the way (some were
reported by Sashiko, others have been found while trying to address
Sashiko's concerns).
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
---
Boris Brezillon (12):
drm/panthor: Disable reset work before unplug
drm/panthor: Further delay reset work enablement
drm/panthor: Move the debugfs initialization to panthor_device.c
drm/panthor: Flush the cleanup_wq before destroying the drm_device
drm/panthor: Drop unused vm argument passed to panthor_vm_prepare_sync_only_op_ctx()
drm/panthor: Split panthor_vm
drm/panthor: Add fine-grained restrictions on VMs
drm/panthor: Check AS state before disabling
drm/panthor: Don't pre-allocate VMAs or page tables when preparing a full VM unmap
drm/panthor: Make the VM cleanup path more robust against UAF
drm/panthor: Make the unplug logic more robust
drm/panthor: Fix unplug in the reset path
drivers/gpu/drm/panthor/panthor_device.c | 155 +++-
drivers/gpu/drm/panthor/panthor_device.h | 37 +-
drivers/gpu/drm/panthor/panthor_drv.c | 12 +-
drivers/gpu/drm/panthor/panthor_fw.c | 9 +-
drivers/gpu/drm/panthor/panthor_mmu.c | 1374 ++++++++++++++++++------------
drivers/gpu/drm/panthor/panthor_mmu.h | 1 +
drivers/gpu/drm/panthor/panthor_sched.c | 17 +
7 files changed, 1015 insertions(+), 590 deletions(-)
---
base-commit: 44e9eb5a762142a4aa46c0b5da7c39bfeb78910e
change-id: 20260804-panthor-unplug-fixes-7927b3ddc2f9
Best regards,
--
Boris Brezillon <boris.brezillon@collabora.com>
next reply other threads:[~2026-08-04 10:10 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 10:09 Boris Brezillon [this message]
2026-08-04 10:09 ` [PATCH 01/12] drm/panthor: Disable reset work before unplug Boris Brezillon
2026-08-04 10:46 ` Boris Brezillon
2026-08-04 10:09 ` [PATCH 02/12] drm/panthor: Further delay reset work enablement Boris Brezillon
2026-08-04 10:09 ` [PATCH 03/12] drm/panthor: Move the debugfs initialization to panthor_device.c Boris Brezillon
2026-08-04 12:50 ` Liviu Dudau
2026-08-04 10:09 ` [PATCH 04/12] drm/panthor: Flush the cleanup_wq before destroying the drm_device Boris Brezillon
2026-08-04 10:09 ` [PATCH 05/12] drm/panthor: Drop unused vm argument passed to panthor_vm_prepare_sync_only_op_ctx() Boris Brezillon
2026-08-04 10:09 ` [PATCH 06/12] drm/panthor: Split panthor_vm Boris Brezillon
2026-08-04 10:09 ` [PATCH 07/12] drm/panthor: Add fine-grained restrictions on VMs Boris Brezillon
2026-08-04 10:09 ` [PATCH 08/12] drm/panthor: Check AS state before disabling Boris Brezillon
2026-08-04 10:09 ` [PATCH 09/12] drm/panthor: Don't pre-allocate VMAs or page tables when preparing a full VM unmap Boris Brezillon
2026-08-04 10:09 ` [PATCH 10/12] drm/panthor: Make the VM cleanup path more robust against UAF Boris Brezillon
2026-08-04 10:09 ` [PATCH 11/12] drm/panthor: Make the unplug logic more robust Boris Brezillon
2026-08-04 10:09 ` [PATCH 12/12] drm/panthor: Fix unplug in the reset path Boris Brezillon
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