From 76894a72a0d7e0759de272bf3f4d2279ebd86d0b Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Wed, 18 Jan 2017 15:10:52 -0800 Subject: ARC: mm: split arc_cache_init to allow __init reaping of bulk arc_cache_init() is called for each core so can't be tagged __init. However bulk of it is only executed by master core and thus is candidate for __init reaping. So split it up to allow that. Signed-off-by: Vineet Gupta --- arch/arc/mm/cache.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) (limited to 'arch/arc') diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 3c275a81528c..ee01979e3d01 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -993,7 +993,7 @@ SYSCALL_DEFINE3(cacheflush, uint32_t, start, uint32_t, sz, uint32_t, flags) * 3. All Caches need to be disabled when setting up IOC to elide any in-flight * Coherency transactions */ -noinline void arc_ioc_setup(void) +noinline void __init arc_ioc_setup(void) { unsigned int ap_sz; @@ -1023,21 +1023,9 @@ noinline void arc_ioc_setup(void) __dc_enable(); } -void arc_cache_init(void) +void __init arc_cache_init_master(void) { unsigned int __maybe_unused cpu = smp_processor_id(); - char str[256]; - - 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; @@ -1106,3 +1094,20 @@ void arc_cache_init(void) __dma_cache_wback = __dma_cache_wback_l1; } } + +void __ref arc_cache_init(void) +{ + unsigned int __maybe_unused cpu = smp_processor_id(); + char str[256]; + + 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) + arc_cache_init_master(); +} -- cgit