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We currently expose MIDR and REVID to userspace through sysfs to enable it to make decisions based on the specific implementation. Since SME supports implementations where streaming mode is provided by a separate hardware unit called a SMCU it provides a similar ID register SMIDR. Expose it to userspace via sysfs when the system supports SME along with the other ID registers. Since we disable the SME priority mapping feature if it is supported by hardware we currently mask out the SMPS bit which reports that it is supported. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220607132857.1358361-1-broonie@kernel.org Signed-off-by: Will Deacon <will@kernel.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
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| tools | ||
| usr | ||
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| Kbuild | ||
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| README | ||
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.