[PATCH 0/6] powerpc: convert cache asm to C

From: Alastair D'Silva
Date: Thu Aug 15 2019 - 00:10:21 EST


From: Alastair D'Silva <alastair@xxxxxxxxxxx>

This series addresses a few issues discovered in how we flush caches:
1. Flushes were truncated at 4GB, so larger flushes were incorrect.
2. Flushing the dcache in arch_add_memory was unnecessary

This series also converts much of the cache assembler to C, with the
aim of making it easier to maintain.

Alastair D'Silva (6):
powerpc: Allow flush_icache_range to work across ranges >4GB
powerpc: define helpers to get L1 icache sizes
powerpc: Convert flush_icache_range & friends to C
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
powerpc: Remove 'extern' from func prototypes in cache headers
powerpc: Don't flush caches when adding memory

arch/powerpc/include/asm/cache.h | 63 +++++++++-----
arch/powerpc/include/asm/cacheflush.h | 49 ++++++-----
arch/powerpc/kernel/misc_32.S | 117 --------------------------
arch/powerpc/kernel/misc_64.S | 97 ---------------------
arch/powerpc/mm/mem.c | 80 +++++++++++++++++-
5 files changed, 146 insertions(+), 260 deletions(-)

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2.21.0