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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-10-22 09:29:36 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-09 08:46:55 +0300 |
| commit | fd1b4b7f51d0d75b73eeda41ef459ea7791aaab2 (patch) | |
| tree | 5d4e2f634c8cefb7c6cfd18ac91ed3a150213634 /arch/powerpc/include/asm/book3s | |
| parent | f265512582a047e09390b1b41384f365d7dc806f (diff) | |
| download | linux-fd1b4b7f51d0d75b73eeda41ef459ea7791aaab2.tar.xz | |
powerpc/32s: Split and inline flush_tlb_mm() and flush_tlb_page()
flush_tlb_mm() and flush_tlb_page() handle both the MMU_FTR_HPTE_TABLE
case and the other case.
The non MMU_FTR_HPTE_TABLE case is trivial as it is only a call
to _tlbie()/_tlbia() which is not worth a dedicated function.
Make flush_tlb_mm() and flush_tlb_page() hash specific and call
them from tlbflush.h based on mmu_has_feature(MMU_FTR_HPTE_TABLE).
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/11e932ded41ba6d9b251d89b7afa33cc060d3aa4.1603348103.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/book3s')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/32/tlbflush.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/tlbflush.h b/arch/powerpc/include/asm/book3s/32/tlbflush.h index f392a619138d..542765944531 100644 --- a/arch/powerpc/include/asm/book3s/32/tlbflush.h +++ b/arch/powerpc/include/asm/book3s/32/tlbflush.h @@ -6,8 +6,8 @@ /* * TLB flushing for "classic" hash-MMU 32-bit CPUs, 6xx, 7xx, 7xxx */ -extern void flush_tlb_mm(struct mm_struct *mm); -extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +void hash__flush_tlb_mm(struct mm_struct *mm); +void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); @@ -22,6 +22,22 @@ static inline void _tlbie(unsigned long address) #endif void _tlbia(void); +static inline void flush_tlb_mm(struct mm_struct *mm) +{ + if (mmu_has_feature(MMU_FTR_HPTE_TABLE)) + hash__flush_tlb_mm(mm); + else + _tlbia(); +} + +static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) +{ + if (mmu_has_feature(MMU_FTR_HPTE_TABLE)) + hash__flush_tlb_page(vma, vmaddr); + else + _tlbie(vmaddr); +} + static inline void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) { |