Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f7327e0b authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
Browse files

powerpc/mm/radix: Remove unnecessary ptesync 



For a tlbiel with pid, we need to issue tlbiel with set number encoded. We
don't need to do ptesync for each of those. Instead we need one for the entire
tlbiel pid operation.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent f6b0df55

arch/powerpc/mm/tlb-radix.c

+2 −2
Original line number Diff line number Diff line
@@ -34,10 +34,8 @@ static inline void __tlbiel_pid(unsigned long pid, int set, 
	prs = 1; /* process scoped */

	r = 1;   /* raidx format */



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

	asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)

		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");

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

}



/*
@@ -47,9 +45,11 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned long ric) 
{

	int set;



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

	for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) {

		__tlbiel_pid(pid, set, ric);

	}

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

	asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");

}