iommu/arm-smmu-v3: Extract reusable function __arm_smmu_cmdq_skip_err()

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When SMMU_GERROR.CMDQP_ERR is different to SMMU_GERRORN.CMDQP_ERR, it
indicates that one or more errors have been encountered on a command queue
control page interface. We need to traverse all ECMDQs in that control
page to find all errors. For each ECMDQ error handling, it is much the
same as the CMDQ error handling. This common processing part is extracted
as a new function __arm_smmu_cmdq_skip_err().

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210811114852.2429-5-thunder.leizhen@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

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Zhen Lei 2021-08-11 19:48:52 +08:00 • committed by Will Deacon

parent 8639cc83aa

commit 2cbeaf3f36

1 changed files with 7 additions and 2 deletions

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drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

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