22893aa22b
Currently, we have mixed code placement between .head.text and .text depends on configuration we are building: _text M R(UP) R(SMP) ====================================================== __setup_mpu __HEAD __HEAD text __after_proc_init __HEAD __HEAD text __mmap_switched text text text We are going to support another variant of MPU which is different to PMSAv7 in sense overlapping MPU regions are not allowed, so this patch makes boundaries between these sections precise and consistent: _text M R(UP) R(SMP) ====================================================== __setup_mpu __HEAD __HEAD __HEAD __after_proc_init text text text __mmap_switched text text text Additionally, it paves a path to postpone MPU activation till __after_proc_init where we do set SCTLR anyway and can return directly to __mmap_switched. Tested-by: Szemz? András <sza@esh.hu> Tested-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.