summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorMasahiro Yamada <yamada.masahiro@socionext.com>2016-01-17 10:13:18 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2016-01-20 08:40:02 +0900
commit6d95778283e239bce0ed2c2c466823a1404f7948 (patch)
tree261f17a5271a470765967b69d93a90ba1e7b2493 /arch
parent5407735935359c6c7f6accc0b3839550107dced3 (diff)
ARM: uniphier: fix range invalidate for outer cache
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-uniphier/cache_uniphier.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/cache_uniphier.c b/arch/arm/mach-uniphier/cache_uniphier.c
index 6c773161ba..8435a3300a 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);
}