From 558ec8ad71c9ec8fd67f388dd74149f9bd095878 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Sat, 2 Feb 2019 01:43:22 +0000 Subject: [PATCH] MIPS: mm: Remove local_flush_tlb_mm() All 3 variants of local_flush_tlb_mm() are now effectively simple calls to drop_mmu_context(). Remove them and use drop_mmu_context() directly. Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org --- arch/mips/include/asm/tlbflush.h | 5 +++-- arch/mips/kernel/smp.c | 4 ++-- arch/mips/mm/tlb-r3k.c | 12 ------------ arch/mips/mm/tlb-r4k.c | 7 ------- arch/mips/mm/tlb-r8k.c | 5 ----- 5 files changed, 5 insertions(+), 28 deletions(-) diff --git a/arch/mips/include/asm/tlbflush.h b/arch/mips/include/asm/tlbflush.h index 40a361092491..9789e7a32def 100644 --- a/arch/mips/include/asm/tlbflush.h +++ b/arch/mips/include/asm/tlbflush.h @@ -14,7 +14,6 @@ * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages */ extern void local_flush_tlb_all(void); -extern void local_flush_tlb_mm(struct mm_struct *mm); extern void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void local_flush_tlb_kernel_range(unsigned long start, @@ -23,6 +22,8 @@ extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); extern void local_flush_tlb_one(unsigned long vaddr); +#include + #ifdef CONFIG_SMP extern void flush_tlb_all(void); @@ -36,7 +37,7 @@ extern void flush_tlb_one(unsigned long vaddr); #else /* CONFIG_SMP */ #define flush_tlb_all() local_flush_tlb_all() -#define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#define flush_tlb_mm(mm) drop_mmu_context(mm) #define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, end) #define flush_tlb_kernel_range(vmaddr,end) \ local_flush_tlb_kernel_range(vmaddr, end) diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index d84b9066b465..d7088ca31e43 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -487,7 +487,7 @@ void flush_tlb_all(void) static void flush_tlb_mm_ipi(void *mm) { - local_flush_tlb_mm((struct mm_struct *)mm); + drop_mmu_context((struct mm_struct *)mm); } /* @@ -540,7 +540,7 @@ void flush_tlb_mm(struct mm_struct *mm) cpu_context(cpu, mm) = 0; } } - local_flush_tlb_mm(mm); + drop_mmu_context(mm); preempt_enable(); } diff --git a/arch/mips/mm/tlb-r3k.c b/arch/mips/mm/tlb-r3k.c index 60eb7a114440..50f207591b6d 100644 --- a/arch/mips/mm/tlb-r3k.c +++ b/arch/mips/mm/tlb-r3k.c @@ -67,18 +67,6 @@ void local_flush_tlb_all(void) local_irq_restore(flags); } -void local_flush_tlb_mm(struct mm_struct *mm) -{ -#ifdef DEBUG_TLB - int cpu = smp_processor_id(); - - if (cpu_context(cpu, mm) != 0) - printk("[tlbmm<%lu>]", (unsigned long)cpu_context(cpu, mm)); -#endif - - drop_mmu_context(mm); -} - void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 9fff08eabe8f..0114c43398f3 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -104,13 +104,6 @@ void local_flush_tlb_all(void) } EXPORT_SYMBOL(local_flush_tlb_all); -/* All entries common to a mm share an asid. To effectively flush - these entries, we just bump the asid. */ -void local_flush_tlb_mm(struct mm_struct *mm) -{ - drop_mmu_context(mm); -} - void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { diff --git a/arch/mips/mm/tlb-r8k.c b/arch/mips/mm/tlb-r8k.c index c938d6b497ef..c1e9e144007e 100644 --- a/arch/mips/mm/tlb-r8k.c +++ b/arch/mips/mm/tlb-r8k.c @@ -50,11 +50,6 @@ void local_flush_tlb_all(void) local_irq_restore(flags); } -void local_flush_tlb_mm(struct mm_struct *mm) -{ - drop_mmu_context(mm); -} - void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) {