Re: [PATCH] powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2016-11-16 04:36:06
On Wed, 2016-11-16 at 15:18 +1100, Michael Neuling wrote:
+ asm volatile("isync \n"
+ PPC_SLBIA(0x7)
+ : : :"memory");
return;
}We probably don't need the isync's
quoted hunk ↗ jump to hunk
@@ -83,6 +87,10 @@ static inline void _tlbiel_va(unsigned long va,unsigned long pid, asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("ptesync": : :"memory"); + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) + asm volatile("isync \n" + PPC_SLBIA(0x7) + : : :"memory"); }