From: Steven Price <steven.price@arm.com>
To: "Dmitry Osipenko" <dmitry.osipenko@collabora.com>,
"David Airlie" <airlied@gmail.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Gurchetan Singh" <gurchetansingh@chromium.org>,
"Chia-I Wu" <olvaffe@gmail.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Gustavo Padovan" <gustavo.padovan@collabora.com>,
"Daniel Stone" <daniel@fooishbar.org>,
"Tomeu Vizoso" <tomeu.vizoso@collabora.com>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Rob Clark" <robdclark@gmail.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Qiang Yu" <yuq825@gmail.com>,
"Alyssa Rosenzweig" <alyssa.rosenzweig@collabora.com>,
"Rob Herring" <robh@kernel.org>, "Sean Paul" <sean@poorly.run>,
"Dmitry Baryshkov" <dmitry.baryshkov@linaro.org>,
"Abhinav Kumar" <quic_abhinavk@quicinc.com>
Cc: kernel@collabora.com, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH v9 02/11] drm/panfrost: Don't sync rpm suspension after mmu flushing
Date: Wed, 23 Nov 2022 15:59:28 +0000 [thread overview]
Message-ID: <2ddef062-2db4-974b-e856-58878b70856e@arm.com> (raw)
In-Reply-To: <20221123025723.695075-3-dmitry.osipenko@collabora.com>
On 23/11/2022 02:57, Dmitry Osipenko wrote:
> Lockdep warns about potential circular locking dependency of devfreq
> with the fs_reclaim caused by immediate device suspension when mapping is
> released by shrinker. Fix it by doing the suspension asynchronously.
>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
> ---
> drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c
> index e246d914e7f6..99a0975f6f03 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c
> @@ -273,7 +273,7 @@ static void panfrost_mmu_flush_range(struct panfrost_device *pfdev,
> if (pm_runtime_active(pfdev->dev))
> mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT);
>
> - pm_runtime_put_sync_autosuspend(pfdev->dev);
> + pm_runtime_put_autosuspend(pfdev->dev);
> }
>
> static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu,
next prev parent reply other threads:[~2022-11-23 15:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 2:57 [PATCH v9 00/11] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 01/11] drm/msm/gem: Prevent blocking within shrinker loop Dmitry Osipenko
2022-11-29 16:40 ` Rob Clark
2022-11-23 2:57 ` [PATCH v9 02/11] drm/panfrost: Don't sync rpm suspension after mmu flushing Dmitry Osipenko
2022-11-23 15:59 ` Steven Price [this message]
2022-11-23 2:57 ` [PATCH v9 03/11] drm/gem: Add evict() callback to drm_gem_object_funcs Dmitry Osipenko
2022-11-23 15:58 ` Steven Price
2022-11-23 16:40 ` Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 04/11] drm/shmem: Put booleans in the end of struct drm_gem_shmem_object Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 05/11] drm/shmem: Switch to use drm_* debug helpers Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 06/11] drm/shmem-helper: Don't use vmap_use_count for dma-bufs Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 07/11] drm/shmem-helper: Switch to reservation lock Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 08/11] drm/shmem-helper: Add memory shrinker Dmitry Osipenko
2022-11-23 15:56 ` kernel test robot
2022-11-23 18:08 ` kernel test robot
2022-11-23 2:57 ` [PATCH v9 09/11] drm/gem: Add drm_gem_pin_unlocked() Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 10/11] drm/virtio: Support memory shrinking Dmitry Osipenko
2022-11-23 2:57 ` [PATCH v9 11/11] drm/panfrost: Switch to generic memory shrinker Dmitry Osipenko
2022-11-23 17:03 ` Steven Price
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