diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/kernel/cache.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index b5e1d9f1b440..86a1a63563fd 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -383,12 +383,12 @@ EXPORT_SYMBOL(flush_kernel_icache_range_asm); static unsigned long parisc_cache_flush_threshold __ro_after_init = FLUSH_THRESHOLD; #define FLUSH_TLB_THRESHOLD (16*1024) /* 16 KiB minimum TLB threshold */ -static unsigned long parisc_tlb_flush_threshold __ro_after_init = FLUSH_TLB_THRESHOLD; +static unsigned long parisc_tlb_flush_threshold __ro_after_init = ~0UL; void __init parisc_setup_cache_timing(void) { unsigned long rangetime, alltime; - unsigned long size, start; + unsigned long size; unsigned long threshold; alltime = mfctl(16); @@ -422,14 +422,9 @@ void __init parisc_setup_cache_timing(void) goto set_tlb_threshold; } - size = 0; - start = (unsigned long) _text; + size = (unsigned long)_end - (unsigned long)_text; rangetime = mfctl(16); - while (start < (unsigned long) _end) { - flush_tlb_kernel_range(start, start + PAGE_SIZE); - start += PAGE_SIZE; - size += PAGE_SIZE; - } + flush_tlb_kernel_range((unsigned long)_text, (unsigned long)_end); rangetime = mfctl(16) - rangetime; alltime = mfctl(16); @@ -444,8 +439,11 @@ void __init parisc_setup_cache_timing(void) threshold/1024); set_tlb_threshold: - if (threshold > parisc_tlb_flush_threshold) + if (threshold > FLUSH_TLB_THRESHOLD) parisc_tlb_flush_threshold = threshold; + else + parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD; + printk(KERN_INFO "TLB flush threshold set to %lu KiB\n", parisc_tlb_flush_threshold/1024); } |