Update the PID switch as per ISA doc. slbia is needed in radix to
invalidate any implementation specific lookaside information
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
arch/powerpc/mm/mmu_context_book3s64.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c
b/arch/powerpc/mm/mmu_context_book3s64.c
index 227b2a6c4544..565f1b1da33b 100644
--- a/arch/powerpc/mm/mmu_context_book3s64.c
+++ b/arch/powerpc/mm/mmu_context_book3s64.c
@@ -181,7 +181,10 @@ void destroy_context(struct mm_struct *mm)
#ifdef CONFIG_PPC_RADIX_MMU
void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
{
- mtspr(SPRN_PID, next->context.id);
asm volatile("isync": : :"memory");
+ mtspr(SPRN_PID, next->context.id);
+ asm volatile("isync \n"
+ "slbia 0x7 \n"
+ : : :"memory");
}
#endif
--
2.7.4
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