Zhou Guanghui 99073052f4 iommu/arm-smmu-v3: fix event handling soft lockup ... [ Upstream commit 30de2b541a ] During event processing, events are read from the event queue one by one until the queue is empty.If the master device continuously requests address access at the same time and the SMMU generates events, the cyclic processing of the event takes a long time and softlockup warnings may be reported. arm-smmu-v3 arm-smmu-v3.34.auto: event 0x0a received: arm-smmu-v3 arm-smmu-v3.34.auto: 0x00007f220000280a arm-smmu-v3 arm-smmu-v3.34.auto: 0x000010000000007e arm-smmu-v3 arm-smmu-v3.34.auto: 0x00000000034e8670 watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [irq/268-arm-smm:247] Call trace: _dev_info+0x7c/0xa0 arm_smmu_evtq_thread+0x1c0/0x230 irq_thread_fn+0x30/0x80 irq_thread+0x128/0x210 kthread+0x134/0x138 ret_from_fork+0x10/0x1c Kernel panic - not syncing: softlockup: hung tasks Fix this by calling cond_resched() after the event information is printed. Signed-off-by: Zhou Guanghui <zhouguanghui1@huawei.com> Link: https://lore.kernel.org/r/20220119070754.26528-1-zhouguanghui1@huawei.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 20:59:04 +02:00
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amd	iommu/amd: Fix I/O page table memory leak	2022-03-08 19:12:49 +01:00
arm	iommu/arm-smmu-v3: fix event handling soft lockup	2022-04-13 20:59:04 +02:00
intel	iommu/vt-d: Fix double list_add when enabling VMD in scalable mode	2022-03-08 19:12:43 +01:00
apple-dart.c	iommu/dart: Initialize DART_STREAMS_ENABLE	2021-11-25 09:48:30 +01:00
dma-iommu.c	iommu/dma: Account for min_align_mask w/swiotlb	2022-04-08 14:24:17 +02:00
exynos-iommu.c
fsl_pamu.c
fsl_pamu.h
fsl_pamu_domain.c
fsl_pamu_domain.h
hyperv-iommu.c
io-pgfault.c
io-pgtable-arm-v7s.c	iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure	2022-01-27 11:02:58 +01:00
io-pgtable-arm.c	iommu/io-pgtable-arm: Fix table descriptor paddr formatting	2022-01-27 11:04:10 +01:00
io-pgtable-arm.h
io-pgtable.c
ioasid.c
iommu-debugfs.c
iommu-sva-lib.c
iommu-sva-lib.h
iommu-sysfs.c
iommu-traces.c
iommu.c	iommu: Fix potential use-after-free during probe	2022-02-16 12:56:41 +01:00
iova.c	iommu/iova: Improve 32-bit free space estimate	2022-04-08 14:22:48 +02:00
ipmmu-vmsa.c	iommu/ipmmu-vmsa: Check for error num after setting mask	2022-04-08 14:23:31 +02:00
irq_remapping.c
irq_remapping.h
Kconfig
Makefile
msm_iommu.c
msm_iommu.h
msm_iommu_hw-8xxx.h
mtk_iommu.c	media: iommu/mediatek: Add device_link between the consumer and the larb devices	2022-04-08 14:23:59 +02:00
mtk_iommu.h
mtk_iommu_v1.c	media: iommu/mediatek: Add device_link between the consumer and the larb devices	2022-04-08 14:23:59 +02:00
of_iommu.c
omap-iommu-debug.c
omap-iommu.c
omap-iommu.h
omap-iopgtable.h
rockchip-iommu.c	iommu/rockchip: Fix PAGE_DESC_HI_MASKs for RK3568	2021-12-01 09:04:54 +01:00
s390-iommu.c
sprd-iommu.c
sun50i-iommu.c
tegra-gart.c
tegra-smmu.c	iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find	2022-03-08 19:12:47 +01:00
virtio-iommu.c