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f115f3c0d5
Commitd25f6ead16("iommu/arm-smmu-v3: Increase maximum size of queues") expands the cmdq queue size to improve the success rate of concurrent command queue space allocation by multiple cores. However, this extension does not apply to evtq and priq, because for both of them, the SMMU driver is the consumer. Instead, memory resources are wasted. Therefore, the queue size of evtq and priq is restored to the original setting, one page. Fixes:d25f6ead16("iommu/arm-smmu-v3: Increase maximum size of queues") Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Link: https://lore.kernel.org/r/20210531123553.9602-1-thunder.leizhen@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.