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Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
-rw-r--r--arch/powerpc/kernel/mce_power.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index ee62b197502d..7353991c4ece 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -72,11 +72,15 @@ void __flush_tlb_power8(unsigned int action)
void __flush_tlb_power9(unsigned int action)
{
+ if (radix_enabled())
+ flush_tlb_206(POWER9_TLB_SETS_RADIX, action);
+
flush_tlb_206(POWER9_TLB_SETS_HASH, action);
}
/* flush SLBs and reload */
+#ifdef CONFIG_PPC_STD_MMU_64
static void flush_and_reload_slb(void)
{
struct slb_shadow *slb;
@@ -110,6 +114,7 @@ static void flush_and_reload_slb(void)
asm volatile("slbmte %0,%1" : : "r" (rs), "r" (rb));
}
}
+#endif
static long mce_handle_derror(uint64_t dsisr, uint64_t slb_error_bits)
{
@@ -120,6 +125,7 @@ static long mce_handle_derror(uint64_t dsisr, uint64_t slb_error_bits)
* reset the error bits whenever we handle them so that at the end
* we can check whether we handled all of them or not.
* */
+#ifdef CONFIG_PPC_STD_MMU_64
if (dsisr & slb_error_bits) {
flush_and_reload_slb();
/* reset error bits */
@@ -131,6 +137,7 @@ static long mce_handle_derror(uint64_t dsisr, uint64_t slb_error_bits)
/* reset error bits */
dsisr &= ~P7_DSISR_MC_TLB_MULTIHIT_MFTLB;
}
+#endif
/* Any other errors we don't understand? */
if (dsisr & 0xffffffffUL)
handled = 0;
@@ -150,6 +157,7 @@ static long mce_handle_common_ierror(uint64_t srr1)
switch (P7_SRR1_MC_IFETCH(srr1)) {
case 0:
break;
+#ifdef CONFIG_PPC_STD_MMU_64
case P7_SRR1_MC_IFETCH_SLB_PARITY:
case P7_SRR1_MC_IFETCH_SLB_MULTIHIT:
/* flush and reload SLBs for SLB errors. */
@@ -162,6 +170,7 @@ static long mce_handle_common_ierror(uint64_t srr1)
handled = 1;
}
break;
+#endif
default:
break;
}
@@ -175,10 +184,12 @@ static long mce_handle_ierror_p7(uint64_t srr1)
handled = mce_handle_common_ierror(srr1);
+#ifdef CONFIG_PPC_STD_MMU_64
if (P7_SRR1_MC_IFETCH(srr1) == P7_SRR1_MC_IFETCH_SLB_BOTH) {
flush_and_reload_slb();
handled = 1;
}
+#endif
return handled;
}
@@ -321,10 +332,12 @@ static long mce_handle_ierror_p8(uint64_t srr1)
handled = mce_handle_common_ierror(srr1);
+#ifdef CONFIG_PPC_STD_MMU_64
if (P7_SRR1_MC_IFETCH(srr1) == P8_SRR1_MC_IFETCH_ERAT_MULTIHIT) {
flush_and_reload_slb();
handled = 1;
}
+#endif
return handled;
}