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-rw-r--r--arch/arc/mm/cache.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index a0ce8ff1e59c..ec86ac0e3321 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -972,11 +972,16 @@ void arc_cache_init(void)
/* check for D-Cache aliasing on ARCompact: ARCv2 has PIPT */
if (is_isa_arcompact()) {
int handled = IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
-
- if (dc->alias && !handled)
- panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
- else if (!dc->alias && handled)
+ int num_colors = dc->sz_k/dc->assoc/TO_KB(PAGE_SIZE);
+
+ if (dc->alias) {
+ if (!handled)
+ panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+ if (CACHE_COLORS_NUM != num_colors)
+ panic("CACHE_COLORS_NUM not optimized for config\n");
+ } else if (!dc->alias && handled) {
panic("Disable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+ }
}
}