From 3ac23944de570df7a6309425aeef063be38f37c4 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Wed, 7 Nov 2018 10:35:34 +0800 Subject: nios2: update_mmu_cache preload the TLB with the new PTE Rather than flush the TLB entry when installing a new PTE to allow the fast TLB reload to re-fill the TLB, just refill the TLB entry when removing the old one. Signed-off-by: Nicholas Piggin Signed-off-by: Ley Foon Tan --- arch/nios2/include/asm/tlbflush.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/nios2/include/asm') diff --git a/arch/nios2/include/asm/tlbflush.h b/arch/nios2/include/asm/tlbflush.h index 982a7ecf221f..b4bf487b9832 100644 --- a/arch/nios2/include/asm/tlbflush.h +++ b/arch/nios2/include/asm/tlbflush.h @@ -30,6 +30,9 @@ struct mm_struct; * - flush_tlb_page(vma, address) flushes a page * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages * - flush_tlb_kernel_page(address) flushes a kernel page + * + * - reload_tlb_page(vma, address, pte) flushes the TLB for address like + * flush_tlb_page, then replaces it with a TLB for pte. */ extern void flush_tlb_all(void); extern void flush_tlb_mm(struct mm_struct *mm); @@ -48,4 +51,7 @@ static inline void flush_tlb_kernel_page(unsigned long address) flush_tlb_kernel_range(address, address + PAGE_SIZE); } +extern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr, + pte_t pte); + #endif /* _ASM_NIOS2_TLBFLUSH_H */ -- cgit v1.2.3-59-g8ed1b