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Namhyung Kim 14ec8ce456 tools headers: Sync arm64 headers with the kernel source 
To pick up the changes in this cset:

  efe676a1a7 arm64: proton-pack: Add new CPUs 'k' values for branch mitigation
  e18c09b204 arm64: Add support for HIP09 Spectre-BHB mitigation
  a9b5bd81b2 arm64: cputype: Add MIDR_CORTEX_A76AE
  53a52a0ec7 arm64: cputype: Add comments about Qualcomm Kryo 5XX and 6XX cores
  401c3333bb arm64: cputype: Add QCOM_CPU_PART_KRYO_3XX_GOLD
  86edf6bdcf smccc/kvm_guest: Enable errata based on implementation CPUs
  0bc9a9e85f KVM: arm64: Work around x1e's CNTVOFF_EL2 bogosity

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h

But the following two changes cannot be applied since they introduced
new build errors in util/arm-spe.c.  So it still has the warning after
this change.

  c8c2647e69 arm64: Make  _midr_in_range_list() an exported function
  e3121298c7 arm64: Modify _midr_range() functions to read MIDR/REVIDR internally

Please see tools/include/uapi/README for further details.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

perf build: [WIP] Fix arm-spe build errors

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
History 2025-08-18 13:46:49 -07:00
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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 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.