From: Dmitry Osipenko dmitry.osipenko@collabora.com
[ Upstream commit ba3be66f11c3c49afaa9f49b99e21d88756229ef ]
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.
Reviewed-by: Steven Price steven.price@arm.com Fixes: ec7eba47da86 ("drm/panfrost: Rework page table flushing and runtime PM interaction") Signed-off-by: Dmitry Osipenko dmitry.osipenko@collabora.com Link: https://lore.kernel.org/all/20230108210445.3948344-3-dmitry.osipenko@collabo... Signed-off-by: Sasha Levin sashal@kernel.org --- 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 c3292a6bd1ae8..d6dda97e2591d 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -253,7 +253,7 @@ 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,