From 1d40cfcd3442a53e98468cdb3e6d4d9a568d76cf Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 15 Jul 2005 15:23:23 +0000 Subject: Avoid SMP cacheflushes. This is a minor optimization of startup but will also avoid smp_call_function from doing stupid things when called from a CPU that is not yet marked online. Signed-off-by: Ralf Baechle --- arch/mips/mm/tlbex.c | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) (limited to 'arch/mips/mm/tlbex.c') diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index a876ed6cde2..c3c75a234f5 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -743,7 +743,6 @@ static void __init build_r3000_tlb_refill_handler(void) #endif memcpy((void *)CAC_BASE, tlb_handler, 0x80); - flush_icache_range(CAC_BASE, CAC_BASE + 0x80); } /* @@ -1258,7 +1257,6 @@ static void __init build_r4000_tlb_refill_handler(void) #endif memcpy((void *)CAC_BASE, final_handler, 0x100); - flush_icache_range(CAC_BASE, CAC_BASE + 0x100); } /* @@ -1519,9 +1517,6 @@ static void __init build_r3000_tlb_load_handler(void) printk("%08x\n", handle_tlbl[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbl, - (unsigned long)handle_tlbl + FASTPATH_SIZE * sizeof(u32)); } static void __init build_r3000_tlb_store_handler(void) @@ -1559,9 +1554,6 @@ static void __init build_r3000_tlb_store_handler(void) printk("%08x\n", handle_tlbs[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbs, - (unsigned long)handle_tlbs + FASTPATH_SIZE * sizeof(u32)); } static void __init build_r3000_tlb_modify_handler(void) @@ -1599,9 +1591,6 @@ static void __init build_r3000_tlb_modify_handler(void) printk("%08x\n", handle_tlbm[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbm, - (unsigned long)handle_tlbm + FASTPATH_SIZE * sizeof(u32)); } /* @@ -1691,9 +1680,6 @@ static void __init build_r4000_tlb_load_handler(void) printk("%08x\n", handle_tlbl[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbl, - (unsigned long)handle_tlbl + FASTPATH_SIZE * sizeof(u32)); } static void __init build_r4000_tlb_store_handler(void) @@ -1730,9 +1716,6 @@ static void __init build_r4000_tlb_store_handler(void) printk("%08x\n", handle_tlbs[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbs, - (unsigned long)handle_tlbs + FASTPATH_SIZE * sizeof(u32)); } static void __init build_r4000_tlb_modify_handler(void) @@ -1770,9 +1753,6 @@ static void __init build_r4000_tlb_modify_handler(void) printk("%08x\n", handle_tlbm[i]); } #endif - - flush_icache_range((unsigned long)handle_tlbm, - (unsigned long)handle_tlbm + FASTPATH_SIZE * sizeof(u32)); } void __init build_tlb_refill_handler(void) @@ -1820,3 +1800,13 @@ void __init build_tlb_refill_handler(void) } } } + +void __init flush_tlb_handlers(void) +{ + flush_icache_range((unsigned long)handle_tlbl, + (unsigned long)handle_tlbl + sizeof(handle_tlbl)); + flush_icache_range((unsigned long)handle_tlbs, + (unsigned long)handle_tlbs + sizeof(handle_tlbs)); + flush_icache_range((unsigned long)handle_tlbm, + (unsigned long)handle_tlbm + sizeof(handle_tlbm)); +} -- cgit v1.2.3