Commit ef08d955 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

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: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ebc933d1c530a19ef3cf7983f6ae94814f6e92ac.1603348103.git.christophe.leroy@csgroup.eu
parent 91ec450f

arch/powerpc/include/asm/book3s/32/tlbflush.h

+11 −0
Original line number Diff line number Diff line
@@ -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;

arch/powerpc/mm/book3s32/tlb.c

+0 −15
Original line number Diff line number Diff line
@@ -43,21 +43,6 @@ void flush_hash_entry(struct mm_struct *mm, pte_t *ptep, unsigned long addr) 
}

EXPORT_SYMBOL(flush_hash_entry);



/*

 * Called at the end of a mmu_gather operation to make sure the

 * TLB flush is completely done.

 */

void tlb_flush(struct mmu_gather *tlb)

{

	if (!mmu_has_feature(MMU_FTR_HPTE_TABLE)) {

		/*

		 * 603 needs to flush the whole TLB here since

		 * it doesn't use a hash table.

		 */

		_tlbia();

	}

}



/*

 * TLB flushing:

 *