diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-10-22 09:29:39 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-09 08:46:56 +0300 |
| commit | ef08d95546ccea540f6a592b89822bb085bf09c6 (patch) | |
| tree | 266f93af3e4d9998c85d2728013b3736fe2d9b72 /arch/powerpc/include/asm/book3s/32 | |
| parent | 91ec450f8d8c1e599a943c526ab1d2a4acf73c22 (diff) | |
| download | linux-ef08d95546ccea540f6a592b89822bb085bf09c6.tar.xz | |
powerpc/32s: Inline tlb_flush()
On book3s/32, tlb_flush() does nothing when the CPU has a hash table,
it calls _tlbia() otherwise.
Inline it.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ebc933d1c530a19ef3cf7983f6ae94814f6e92ac.1603348103.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/book3s/32')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/32/tlbflush.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/tlbflush.h b/arch/powerpc/include/asm/book3s/32/tlbflush.h index 42708c1719d6..d941c06d4f2e 100644 --- a/arch/powerpc/include/asm/book3s/32/tlbflush.h +++ b/arch/powerpc/include/asm/book3s/32/tlbflush.h @@ -20,6 +20,17 @@ static inline void _tlbie(unsigned long address) #endif void _tlbia(void); +/* + * Called at the end of a mmu_gather operation to make sure the + * TLB flush is completely done. + */ +static inline void tlb_flush(struct mmu_gather *tlb) +{ + /* 603 needs to flush the whole TLB here since it doesn't use a hash table. */ + if (!mmu_has_feature(MMU_FTR_HPTE_TABLE)) + _tlbia(); +} + static inline void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end) { start &= PAGE_MASK; |