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 ---
arch/arm/mach-uniphier/cache_uniphier.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/arch/arm/mach-uniphier/cache_uniphier.c b/arch/arm/mach-uniphier/cache_uniphier.c index 6c77316..8435a33 100644 --- a/arch/arm/mach-uniphier/cache_uniphier.c +++ b/arch/arm/mach-uniphier/cache_uniphier.c @@ -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); }