From 67ece1443174d852e71c42facb3e2d7dd338c88a Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 2 Jul 2011 15:20:44 +0100 Subject: ARM: pgtable: consolidate set_pte_ext(TOP_PTE,...) + tlb flush A number of places establish a PTE in our top page table and immediately flush the TLB. Rather than having this at every callsite, provide an inline function for this purpose. This changes some global tlb flushes to be local; each time we setup one of these mappings, we always do it with preemption disabled which would prevent us migrating to another CPU. Reviewed-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mm/mm.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm/mm/mm.h') diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h index 6ee1ff2c1da..a4e7febeb6a 100644 --- a/arch/arm/mm/mm.h +++ b/arch/arm/mm/mm.h @@ -18,6 +18,12 @@ extern pmd_t *top_pmd; /* PFN alias flushing, for VIPT caches */ #define FLUSH_ALIAS_START 0xffff4000 +static inline void set_top_pte(unsigned long va, pte_t pte) +{ + set_pte_ext(TOP_PTE(va), pte, 0); + local_flush_tlb_kernel_page(va); +} + static inline pmd_t *pmd_off_k(unsigned long virt) { return pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt); -- cgit v1.2.3-70-g09d2