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ARM: uniphier: fix range invalidate for outer cache

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If invalidate operation is invoked against a cache-unaliged region,
the both ends of the region should be flushed, not invalidated.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-01-17 10:13:18 +09:00
parent 5407735935
commit 6d95778283
1 changed files with 23 additions and 0 deletions
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23
arch/arm/mach-uniphier/cache_uniphier.c
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@ -105,6 +105,29 @@ void v7_outer_cache_flush_range(u32 start, u32 end)
void v7_outer_cache_inval_range(u32 start, u32 end)
{
if (start & (SSC_LINE_SIZE - 1)) {
start &= ~(SSC_LINE_SIZE - 1);
__uniphier_cache_maint_range(start, SSC_LINE_SIZE,
SSCOQM_CM_WB_INV);
start += SSC_LINE_SIZE;
}
if (start >= end) {
uniphier_cache_sync();
return;
}
if (end & (SSC_LINE_SIZE - 1)) {
end &= ~(SSC_LINE_SIZE - 1);
__uniphier_cache_maint_range(end, SSC_LINE_SIZE,
SSCOQM_CM_WB_INV);
}
if (start >= end) {
uniphier_cache_sync();
return;
}
uniphier_cache_maint_range(start, end, SSCOQM_CM_INV);
}