powerpc: Fix action argument for cpufeatures-based TLB flush

Commit 41d0c2ecde19 ("powerpc/powernv: Fix local TLB flush for boot
and MCE on POWER9") introduced calls to __flush_tlb_power[89] from the
cpufeatures code, specifying the number of sets to flush.

However, these functions take an action argument, not a number of
sets. This means we hit the BUG() in __flush_tlb_{206,300} when using
cpufeatures-style configuration.

This change passes TLB_INVAL_SCOPE_GLOBAL instead.

Fixes: 41d0c2ecde19 ("powerpc/powernv: Fix local TLB flush for boot and MCE on POWER9")
Cc: stable@vger.kernel.org # v4.13+
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 1df770e8cbe03194f31576cff264fdedbb1aa517..7275fed271afa601711b2f43b0da2c2377c68eff 100644 (file)
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -102,10 +102,10 @@ static void cpufeatures_flush_tlb(void)
        case PVR_POWER8:
        case PVR_POWER8E:
        case PVR_POWER8NVL:
-               __flush_tlb_power8(POWER8_TLB_SETS);
+               __flush_tlb_power8(TLB_INVAL_SCOPE_GLOBAL);
                break;
        case PVR_POWER9:
-               __flush_tlb_power9(POWER9_TLB_SETS_HASH);
+               __flush_tlb_power9(TLB_INVAL_SCOPE_GLOBAL);
                break;
        default:
                pr_err("unknown CPU version for boot TLB flush\n");