From 0520a938e11c34a5ffc422b9316b85e294b0fbb2 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sun, 11 Sep 2016 12:58:59 -0300 Subject: Linux-libre 4.7.3-gnu --- arch/arc/mm/cache.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arc/mm') diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 5a294b2c3..0b10efe3a 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -921,6 +921,15 @@ void arc_cache_init(void) printk(arc_cache_mumbojumbo(0, str, sizeof(str))); + /* + * Only master CPU needs to execute rest of function: + * - Assume SMP so all cores will have same cache config so + * any geomtry checks will be same for all + * - IOC setup / dma callbacks only need to be setup once + */ + if (cpu) + return; + if (IS_ENABLED(CONFIG_ARC_HAS_ICACHE)) { struct cpuinfo_arc_cache *ic = &cpuinfo_arc700[cpu].icache; -- cgit v1.2.3-54-g00ecf