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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-07-19 14:49:06 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-08-02 13:11:06 +1000 |
| commit | 424de9c6e3f89399fc11afc1f53f89c5329132da (patch) | |
| tree | 1f2427b3c5e2994c5735d18238ea84057f3c6c15 /arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | |
| parent | powerpc/mm/radix: Improve TLB/PWC flushes (diff) | |
| download | linux-dev-424de9c6e3f89399fc11afc1f53f89c5329132da.tar.xz linux-dev-424de9c6e3f89399fc11afc1f53f89c5329132da.zip | |
powerpc/mm/radix: Avoid flushing the PWC on every flush_tlb_range
We do that because it's used by THP pmd collapsing, so use
instead a dedicated flush function.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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 | 1 |
1 files changed, 1 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 7196999cdc82..9b433a624bf3 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -36,6 +36,7 @@ extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmad #define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p) #endif extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); +extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr); extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa, unsigned long page_size); extern void radix__flush_tlb_lpid(unsigned long lpid); |