diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2015-10-15 08:04:45 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-10-17 17:48:21 +0530 |
| commit | c7119d56d2755fc2770b0e2c1c4385e10f4c9161 (patch) | |
| tree | 162fd73e150f4dae3d967e351e099eb1194321df | |
| parent | 722fe8fd365a08bd53e9dd105009ab810107b02d (diff) | |
ARCv2: mm: THP: flush_pmd_tlb_range make SMP safe
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
| -rw-r--r-- | arch/arc/include/asm/tlbflush.h | 5 | ||||
| -rw-r--r-- | arch/arc/mm/tlb.c | 27 |
2 files changed, 30 insertions, 2 deletions
diff --git a/arch/arc/include/asm/tlbflush.h b/arch/arc/include/asm/tlbflush.h index 71c7b2e4b874..1fe9c8c80280 100644 --- a/arch/arc/include/asm/tlbflush.h +++ b/arch/arc/include/asm/tlbflush.h @@ -17,6 +17,8 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); void local_flush_tlb_kernel_range(unsigned long start, unsigned long end); void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); +void local_flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); #ifndef CONFIG_SMP #define flush_tlb_range(vma, s, e) local_flush_tlb_range(vma, s, e) @@ -24,6 +26,7 @@ void local_flush_tlb_range(struct vm_area_struct *vma, #define flush_tlb_kernel_range(s, e) local_flush_tlb_kernel_range(s, e) #define flush_tlb_all() local_flush_tlb_all() #define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#define flush_pmd_tlb_range(vma, s, e) local_flush_pmd_tlb_range(vma, s, e) #else extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); @@ -31,5 +34,7 @@ extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); extern void flush_tlb_all(void); extern void flush_tlb_mm(struct mm_struct *mm); +extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); + #endif /* CONFIG_SMP */ #endif diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c index 005090e425f4..29b587835974 100644 --- a/arch/arc/mm/tlb.c +++ b/arch/arc/mm/tlb.c @@ -421,6 +421,15 @@ static inline void ipi_flush_tlb_range(void *arg) local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end); } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +static inline void ipi_flush_pmd_tlb_range(void *arg) +{ + struct tlb_args *ta = arg; + + local_flush_pmd_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end); +} +#endif + static inline void ipi_flush_tlb_kernel_range(void *arg) { struct tlb_args *ta = (struct tlb_args *)arg; @@ -461,6 +470,20 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, on_each_cpu_mask(mm_cpumask(vma->vm_mm), ipi_flush_tlb_range, &ta, 1); } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE +void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) +{ + struct tlb_args ta = { + .ta_vma = vma, + .ta_start = start, + .ta_end = end + }; + + on_each_cpu_mask(mm_cpumask(vma->vm_mm), ipi_flush_pmd_tlb_range, &ta, 1); +} +#endif + void flush_tlb_kernel_range(unsigned long start, unsigned long end) { struct tlb_args ta = { @@ -659,8 +682,8 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp) return pgtable; } -void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) +void local_flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) { unsigned int cpu; unsigned long flags; |