Ralf, I forgot to add it to the patch, but if you merge this, can you add a Cc: stable@... for the versions that have the patches that broke the XI feature?
Thanks, David Daney On 12/19/2014 05:15 PM, David Daney wrote:
From: David Daney <david.daney@xxxxxxxxxx> If we are generating TLB exception expecting separate vectors, we must enable the feature. Cc: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx> Signed-off-by: David Daney <david.daney@xxxxxxxxxx> --- Very lightly tested, but it seems to make my XI and RI tests work on OCTEON II CPUs, which have the C0_Pagegrain[IEC] bit. arch/mips/mm/tlb-r4k.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index e90b2e8..30639a6 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -489,6 +489,8 @@ static void r4k_tlb_configure(void) #ifdef CONFIG_64BIT pg |= PG_ELPA; #endif + if (cpu_has_rixiex) + pg |= PG_IEC; write_c0_pagegrain(pg); }
