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| author | Ralf Baechle <ralf@linux-mips.org> | 2016-01-28 14:26:00 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-05-13 14:01:38 +0200 |
| commit | 34ae8e3688fb8af2afaf52b78c6f20c74c6ae650 (patch) | |
| tree | 4d242fab4556c7ff5ea856b556cbd42ae92be021 /arch/mips/kernel/cpu-probe.c | |
| parent | 429365b2a1a90b593a730f54819a4c5dfd98553b (diff) | |
| download | op-kernel-dev-34ae8e3688fb8af2afaf52b78c6f20c74c6ae650.zip op-kernel-dev-34ae8e3688fb8af2afaf52b78c6f20c74c6ae650.tar.gz | |
MIPS: highmem: Turn flush_cache_kmaps into a no-op.
It was calling flush_cache_all() which is a no-op since a long time anyway
and which was overkill in the old days when it was actually doing something
because only the D-cache needs to be flushed, never the I-cache, never
the S-cache. Since however highmem on MIPS is still only supported on
processors that don't suffer from cache aliases, we could turn
flush_cache_kmaps() into a no-op - but for paranoia's sake we rather make
it BUG_ON(cpu_has_dc_aliases()).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
0 files changed, 0 insertions, 0 deletions
