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| author | Frederic Barrat <fbarrat@linux.vnet.ibm.com> | 2017-09-03 20:15:12 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-09-28 16:28:22 +1000 |
| commit | 6110236b9bbd177debc045c5fc29224444686ece (patch) | |
| tree | 48efa00936f0a894fa55c51dbdf9716928dc3b08 /arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | |
| parent | 5080332c2c893118dbc18755f35c8b0131cf0fc4 (diff) | |
| download | linux-6110236b9bbd177debc045c5fc29224444686ece.tar.gz linux-6110236b9bbd177debc045c5fc29224444686ece.tar.bz2 linux-6110236b9bbd177debc045c5fc29224444686ece.zip | |
powerpc/mm: Export flush_all_mm()
With the optimizations introduced by commit a46cc7a90fd8
("powerpc/mm/radix: Improve TLB/PWC flushes"), flush_tlb_mm() no
longer flushes the page walk cache (PWC) with radix. This patch
introduces flush_all_mm(), which flushes everything, TLB and PWC, for
a given mm.
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-By: Alistair Popple <alistair@popple.id.au>
[mpe: Add a WARN_ON_ONCE() in the empty hash routines]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/tlbflush-radix.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index 9b433a624bf3..af06c6fe8a9f 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -21,17 +21,20 @@ extern void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long sta extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end); extern void radix__local_flush_tlb_mm(struct mm_struct *mm); +extern void radix__local_flush_all_mm(struct mm_struct *mm); extern void radix__local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); extern void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize); extern void radix__tlb_flush(struct mmu_gather *tlb); #ifdef CONFIG_SMP extern void radix__flush_tlb_mm(struct mm_struct *mm); +extern void radix__flush_all_mm(struct mm_struct *mm); extern void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize); #else #define radix__flush_tlb_mm(mm) radix__local_flush_tlb_mm(mm) +#define radix__flush_all_mm(mm) radix__local_flush_all_mm(mm) #define radix__flush_tlb_page(vma,addr) radix__local_flush_tlb_page(vma,addr) #define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p) #endif |