iommu/arm-smmu-v3: disable stall for quiet_cd

maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8PSC6

Reference: https://patchwork.kernel.org/project/kvm/patch/20231206005727.46150-1-zhangfei.gao@linaro.org/



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In the stall model, invalid transactions were expected to be
stalled and aborted by the IOPF handler.

However, when killing a test case with a huge amount of data, the
accelerator streamline can not stop until all data is consumed
even if the page fault handler reports errors. As a result, the
kill may take a long time, about 10 seconds with numerous iopf
interrupts.

So disable stall for quiet_cd in the non-force stall model, since
force stall model (STALL_MODEL==0b10) requires CD.S must be 1.

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wenkai Lin <linwenkai6@hisilicon.com>
Suggested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20231206005727.46150-1-zhangfei.gao@linaro.org


Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>