From 0ba3418b8b1c85ee1771c63f1dd12041614e56ff Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 15 Jul 2008 16:12:25 -0500 Subject: powerpc: Introduce local (non-broadcast) forms of tlb invalidates Introduced a new set of low level tlb invalidate functions that do not broadcast invalidates on the bus: _tlbil_all - invalidate all _tlbil_pid - invalidate based on process id (or mm context) _tlbil_va - invalidate based on virtual address (ea + pid) On non-SMP configs _tlbil_all should be functionally equivalent to _tlbia and _tlbil_va should be functionally equivalent to _tlbie. The intent of this change is to handle SMP based invalidates via IPIs instead of broadcasts as the mechanism scales better for larger number of cores. On e500 (fsl-booke mmu) based cores move to using MMUCSR for invalidate alls and tlbsx/tlbwe for invalidate virtual address. Signed-off-by: Kumar Gala --- arch/powerpc/kernel/ppc_ksyms.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/kernel/ppc_ksyms.c') diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index e1ea4fe..8edc235 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -119,6 +119,9 @@ EXPORT_SYMBOL(flush_instruction_cache); EXPORT_SYMBOL(flush_tlb_kernel_range); EXPORT_SYMBOL(flush_tlb_page); EXPORT_SYMBOL(_tlbie); +#if defined(CONFIG_4xx) || defined(CONFIG_8xx) || defined(CONFIG_FSL_BOOKE) +EXPORT_SYMBOL(_tlbil_va); +#endif #endif EXPORT_SYMBOL(__flush_icache_range); EXPORT_SYMBOL(flush_dcache_range); -- cgit v1.1