From: "Alastair D'Silva" <alastair@au1.ibm.com>
To: alastair@d-silva.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Christophe Leroy <christophe.leroy@c-s.fr>,
Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Qian Cai <cai@lca.pw>, Nicholas Piggin <npiggin@gmail.com>,
Allison Randal <allison@lohutok.net>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>,
David Hildenbrand <david@redhat.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/6] powerpc: convert cache asm to C
Date: Thu, 15 Aug 2019 14:10:45 +1000 [thread overview]
Message-ID: <20190815041057.13627-1-alastair@au1.ibm.com> (raw)
From: Alastair D'Silva <alastair@d-silva.org>
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(-)
--
2.21.0
next reply other threads:[~2019-08-15 4:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 4:10 Alastair D'Silva [this message]
2019-08-15 4:10 ` [PATCH 1/6] powerpc: Allow flush_icache_range to work across ranges >4GB Alastair D'Silva
2019-08-15 4:10 ` [PATCH 2/6] powerpc: define helpers to get L1 icache sizes Alastair D'Silva
2019-08-15 4:10 ` [PATCH 3/6] powerpc: Convert flush_icache_range & friends to C Alastair D'Silva
2019-08-15 7:29 ` christophe leroy
2019-08-16 1:44 ` Alastair D'Silva
2019-08-16 15:57 ` Christophe Leroy
2019-08-15 4:10 ` [PATCH 4/6] powerpc: Chunk calls to flush_dcache_range in arch_*_memory Alastair D'Silva
2019-08-15 6:54 ` Mike Rapoport
2019-08-15 7:36 ` christophe leroy
2019-08-16 1:45 ` Alastair D'Silva
2019-08-15 4:10 ` [PATCH 5/6] powerpc: Remove 'extern' from func prototypes in cache headers Alastair D'Silva
2019-08-15 4:10 ` [PATCH 6/6] powerpc: Don't flush caches when adding memory Alastair D'Silva
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