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Default MMU-500 reset operation disables context caching in prefetch buffer. It is however expected for context banks using the ACTLR register to retain their prefetch value during reset and runtime suspend. Add config 'ARM_SMMU_MMU_500_CPRE_ERRATA' to gate this errata workaround in default MMU-500 reset operation which defaults to 'Y' and provide option to disable workaround for context caching in prefetch buffer as and when needed. Suggested-by: Will Deacon <will@kernel.org> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> Link: https://lore.kernel.org/r/20241212151402.159102-2-quic_bibekkum@quicinc.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 reStructuredText 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.