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authorNicholas Piggin <npiggin@gmail.com>2017-03-14 13:36:45 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2017-03-21 12:09:29 +0100
commit58c8d17f2ed7367f9886908633fbe85624e41e78 (patch)
tree17e34b7a04af25e172fc0cf07c4eaea0c8d85c16 /arch/powerpc/kernel/mce_power.c
parentpowerpc/64s: Clean up machine check recovery flushing (diff)
downloadlinux-58c8d17f2ed7367f9886908633fbe85624e41e78.tar.xz
linux-58c8d17f2ed7367f9886908633fbe85624e41e78.zip
powerpc/64s: Move POWER machine check defines into mce_power.c
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
-rw-r--r--arch/powerpc/kernel/mce_power.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 0f35a88e3655..9b3bcd1213bf 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -161,6 +161,98 @@ static int mce_handle_flush_derrors(uint64_t dsisr, uint64_t slb, uint64_t tlb,
return 1;
}
+
+/*
+ * Machine Check bits on power7 and power8
+ */
+#define P7_SRR1_MC_LOADSTORE(srr1) ((srr1) & PPC_BIT(42)) /* P8 too */
+
+/* SRR1 bits for machine check (On Power7 and Power8) */
+#define P7_SRR1_MC_IFETCH(srr1) ((srr1) & PPC_BITMASK(43, 45)) /* P8 too */
+
+#define P7_SRR1_MC_IFETCH_UE (0x1 << PPC_BITLSHIFT(45)) /* P8 too */
+#define P7_SRR1_MC_IFETCH_SLB_PARITY (0x2 << PPC_BITLSHIFT(45)) /* P8 too */
+#define P7_SRR1_MC_IFETCH_SLB_MULTIHIT (0x3 << PPC_BITLSHIFT(45)) /* P8 too */
+#define P7_SRR1_MC_IFETCH_SLB_BOTH (0x4 << PPC_BITLSHIFT(45))
+#define P7_SRR1_MC_IFETCH_TLB_MULTIHIT (0x5 << PPC_BITLSHIFT(45)) /* P8 too */
+#define P7_SRR1_MC_IFETCH_UE_TLB_RELOAD (0x6 << PPC_BITLSHIFT(45)) /* P8 too */
+#define P7_SRR1_MC_IFETCH_UE_IFU_INTERNAL (0x7 << PPC_BITLSHIFT(45))
+
+/* SRR1 bits for machine check (On Power8) */
+#define P8_SRR1_MC_IFETCH_ERAT_MULTIHIT (0x4 << PPC_BITLSHIFT(45))
+
+/* DSISR bits for machine check (On Power7 and Power8) */
+#define P7_DSISR_MC_UE (PPC_BIT(48)) /* P8 too */
+#define P7_DSISR_MC_UE_TABLEWALK (PPC_BIT(49)) /* P8 too */
+#define P7_DSISR_MC_ERAT_MULTIHIT (PPC_BIT(52)) /* P8 too */
+#define P7_DSISR_MC_TLB_MULTIHIT_MFTLB (PPC_BIT(53)) /* P8 too */
+#define P7_DSISR_MC_SLB_PARITY_MFSLB (PPC_BIT(55)) /* P8 too */
+#define P7_DSISR_MC_SLB_MULTIHIT (PPC_BIT(56)) /* P8 too */
+#define P7_DSISR_MC_SLB_MULTIHIT_PARITY (PPC_BIT(57)) /* P8 too */
+
+/*
+ * DSISR bits for machine check (Power8) in addition to above.
+ * Secondary DERAT Multihit
+ */
+#define P8_DSISR_MC_ERAT_MULTIHIT_SEC (PPC_BIT(54))
+
+/* SLB error bits */
+#define P7_DSISR_MC_SLB_ERRORS (P7_DSISR_MC_ERAT_MULTIHIT | \
+ P7_DSISR_MC_SLB_PARITY_MFSLB | \
+ P7_DSISR_MC_SLB_MULTIHIT | \
+ P7_DSISR_MC_SLB_MULTIHIT_PARITY)
+
+#define P8_DSISR_MC_SLB_ERRORS (P7_DSISR_MC_SLB_ERRORS | \
+ P8_DSISR_MC_ERAT_MULTIHIT_SEC)
+
+/*
+ * Machine Check bits on power9
+ */
+#define P9_SRR1_MC_LOADSTORE(srr1) (((srr1) >> PPC_BITLSHIFT(42)) & 1)
+
+#define P9_SRR1_MC_IFETCH(srr1) ( \
+ PPC_BITEXTRACT(srr1, 45, 0) | \
+ PPC_BITEXTRACT(srr1, 44, 1) | \
+ PPC_BITEXTRACT(srr1, 43, 2) | \
+ PPC_BITEXTRACT(srr1, 36, 3) )
+
+/* 0 is reserved */
+#define P9_SRR1_MC_IFETCH_UE 1
+#define P9_SRR1_MC_IFETCH_SLB_PARITY 2
+#define P9_SRR1_MC_IFETCH_SLB_MULTIHIT 3
+#define P9_SRR1_MC_IFETCH_ERAT_MULTIHIT 4
+#define P9_SRR1_MC_IFETCH_TLB_MULTIHIT 5
+#define P9_SRR1_MC_IFETCH_UE_TLB_RELOAD 6
+/* 7 is reserved */
+#define P9_SRR1_MC_IFETCH_LINK_TIMEOUT 8
+#define P9_SRR1_MC_IFETCH_LINK_TABLEWALK_TIMEOUT 9
+/* 10 ? */
+#define P9_SRR1_MC_IFETCH_RA 11
+#define P9_SRR1_MC_IFETCH_RA_TABLEWALK 12
+#define P9_SRR1_MC_IFETCH_RA_ASYNC_STORE 13
+#define P9_SRR1_MC_IFETCH_LINK_ASYNC_STORE_TIMEOUT 14
+#define P9_SRR1_MC_IFETCH_RA_TABLEWALK_FOREIGN 15
+
+/* DSISR bits for machine check (On Power9) */
+#define P9_DSISR_MC_UE (PPC_BIT(48))
+#define P9_DSISR_MC_UE_TABLEWALK (PPC_BIT(49))
+#define P9_DSISR_MC_LINK_LOAD_TIMEOUT (PPC_BIT(50))
+#define P9_DSISR_MC_LINK_TABLEWALK_TIMEOUT (PPC_BIT(51))
+#define P9_DSISR_MC_ERAT_MULTIHIT (PPC_BIT(52))
+#define P9_DSISR_MC_TLB_MULTIHIT_MFTLB (PPC_BIT(53))
+#define P9_DSISR_MC_USER_TLBIE (PPC_BIT(54))
+#define P9_DSISR_MC_SLB_PARITY_MFSLB (PPC_BIT(55))
+#define P9_DSISR_MC_SLB_MULTIHIT_MFSLB (PPC_BIT(56))
+#define P9_DSISR_MC_RA_LOAD (PPC_BIT(57))
+#define P9_DSISR_MC_RA_TABLEWALK (PPC_BIT(58))
+#define P9_DSISR_MC_RA_TABLEWALK_FOREIGN (PPC_BIT(59))
+#define P9_DSISR_MC_RA_FOREIGN (PPC_BIT(60))
+
+/* SLB error bits */
+#define P9_DSISR_MC_SLB_ERRORS (P9_DSISR_MC_ERAT_MULTIHIT | \
+ P9_DSISR_MC_SLB_PARITY_MFSLB | \
+ P9_DSISR_MC_SLB_MULTIHIT_MFSLB)
+
static long mce_handle_derror_p7(uint64_t dsisr)
{
return mce_handle_flush_derrors(dsisr,