Commit 6a70c66a authored Aug 27, 2018 by Nicholas Piggin Committed by Greg Kroah-Hartman Nov 24, 2019

powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation



[ Upstream commit 053c5a753e951c5dd1729af2cf4d8107f2e6e09b ]

Local radix TLB flush operations that operate on congruence classes
have explicit ERAT flushes for POWER9. The process scoped LPID flush
did not have a flush, so add it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 9e4649e4

arch/powerpc/mm/tlb-radix.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -429,6 +429,7 @@ static inline void _tlbiel_lpid_guest(unsigned long lpid, unsigned long ric)
		__tlbiel_lpid_guest(lpid, set, RIC_FLUSH_TLB);

		asm volatile("ptesync": : :"memory");
		asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
		}