mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-01-12 03:02:11 -05:00
45f7091aac
Since commit0069f3d14e("powerpc/64e: Tie PPC_BOOK3E_64 to PPC_E500MC"), the only possible BOOK3E/64 are E500, so no need of a default CPU over the E5500. When the user selects book3e, they must have an e500 compatible compiler, and it won't work anymore with the default -mcpu=power64, see commitd6b551b8f9("powerpc/64e: Fix build failure with GCC 12 (unrecognized opcode: `wrteei')"). For book3s/64, replace GENERIC_CPU by POWERPC64_CPU to match the PPC32 POWERPC_CPU, and set a default mpcu value in Kconfig directly. When a user selects a particular CPU, they must ensure the compiler has the requested capability. Therefore, remove hidden fallback, instead offer user the possibility to say they want to use the toolchain default. Fixes:d6b551b8f9("powerpc/64e: Fix build failure with GCC 12 (unrecognized opcode: `wrteei')") Reported-by: Pali Rohár <pali@kernel.org> Tested-by: Pali Rohár <pali@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/76c11197b058193dcb8e8b26adffba09cfbdab11.1674632329.git.christophe.leroy@csgroup.eu
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.