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d10efa21a9
To determine pgtable level at boot time, we can not use helper functions in include/asm-generic/pgtable-nop4d.h and must implement these functions. This patch uses pgtable_l5_enabled variable instead of including pgtable-nop4d.h to controle p4d's folding, and implements corresponding helper functions. Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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.