Pull powerpc fixes from Michael Ellerman:
- One important fix for a bug in the way we find the cache-line size
from the device tree, which was leading to the wrong size being
reported to userspace on some platforms.
- A fix for 8xx STRICT_KERNEL_RWX which was leaving TLB entries around
leading to a window at boot when the strict mapping wasn't enforced.
- A fix to enable our KUAP (kernel user access prevention) debugging on
PPC32.
- A build fix for clang in lib/mpi.
Thanks to: Chris Packham, Christophe Leroy, Nathan Chancellor, Qian Cai.
* tag 'powerpc-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
lib/mpi: Fix building for powerpc with clang
powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32
powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure
powerpc/setup_64: Set cache-line-size based on cache-block-size