4053b6b43f
A common mistake when writing a device tree for a platform that is using GICv3 with ancient CPUs is to overlook the MMIO frames that implement the GICv2 compatibility feature, because this feature is implemented by the CPUs and not by the GIC itself. The compatibility feature itself is optional (all the modern implementations have dropped it), but is present in all the ARM Ltd implementations of the ARMv8.0 architecture (A3x, A53, A57, A72, A73), and many others from various implementers. Make it explicit that GICC, GICH and GICV are required for these CPUs. Also take this opportunity to update my email address, as people keep sending them to the wrong place... Signed-off-by: Marc Zyngier <maz@kernel.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220409101617.268796-1-maz@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.