Commit b91280f3 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/32s: Inline _tlbie() on non SMP 



On non SMP, _tlbie() is just a tlbie plus a sync instruction.

Make it static inline.

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/475136425541db5c7c8a0395d19d400525b251bc.1603348103.git.christophe.leroy@csgroup.eu
parent cfe32ad0

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

+7 −0
Original line number Diff line number Diff line
@@ -12,7 +12,14 @@ 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);



#ifdef CONFIG_SMP

void _tlbie(unsigned long address);

#else

static inline void _tlbie(unsigned long address)

{

	asm volatile ("tlbie %0; sync" : : "r" (address) : "memory");

}

#endif

void _tlbia(void);



static inline void local_flush_tlb_page(struct vm_area_struct *vma,

arch/powerpc/mm/book3s32/hash_low.S

+2 −5
Original line number Diff line number Diff line
@@ -622,8 +622,8 @@ _ASM_NOKPROBE_SYMBOL(flush_hash_pages) 
/*

 * Flush an entry from the TLB

 */

_GLOBAL(_tlbie)

#ifdef CONFIG_SMP

_GLOBAL(_tlbie)

	lwz	r8,TASK_CPU(r2)

	oris	r8,r8,11

	mfmsr	r10
@@ -647,12 +647,9 @@ _GLOBAL(_tlbie) 
	stw	r0,0(r9)		/* clear mmu_hash_lock */

	mtmsr	r10

	isync

#else /* CONFIG_SMP */

	tlbie	r3

	sync

#endif /* CONFIG_SMP */

	blr

_ASM_NOKPROBE_SYMBOL(_tlbie)

#endif /* CONFIG_SMP */



/*

 * Flush the entire TLB. 603/603e only

CRA Git | Maintained and supported by SUSTech CRA and CCSE