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[ Upstream commit 8d34b6f17b9ac93faa2791eb037dcb08bdf755de ] ACPI identifies CPUs by UID. get_cpu_for_acpi_id() maps the ACPI UID to the Linux CPU number. The helper to retrieve this mapping is only available in arm64's NUMA code. Move it to live next to get_acpi_id_for_cpu(). Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Tested-by: Miguel Luis <miguel.luis@oracle.com> Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com> Tested-by: Jianyong Wu <jianyong.wu@arm.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Link: https://lore.kernel.org/r/20240529133446.28446-12-Jonathan.Cameron@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Sasha Levin <sashal@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.