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7819e05a0d
CMN implements a set of CoreSight-format peripheral ID registers which in principle we should be able to use to identify the hardware. However so far we have avoided trying to use the part number field since the TRMs have all described it as "configuration dependent". It turns out, though, that this is a quirk of the documentation generation process, and in fact the part number should always be a stable well-defined field which we can trust. To that end, revamp our model detection to rely less on ACPI/DT, and pave the way towards further using the hardware information as an identifier for userspace jevent metrics. This includes renaming the revision constants to maximise readability. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-and-tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Link: https://lore.kernel.org/r/3c791eaae814b0126f9adbd5419bfb4a600dade7.1686588640.git.robin.murphy@arm.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.