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Subject[PATCH 1/5] x86/MCE/AMD: Add new MP5, NBIO, and PCIE SMCA bank types
Date
From: Yazen Ghannam <yazen.ghannam@amd.com>

Add the (HWID, MCATYPE) tuples and names for the new MP5, NBIO, and
PCIE SMCA bank types.

Also, add their respective error descriptions to edac_mce_amd.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
---
arch/x86/include/asm/mce.h | 3 +++
arch/x86/kernel/cpu/mce/amd.c | 12 ++++++++++++
drivers/edac/mce_amd.c | 32 ++++++++++++++++++++++++++++++++
3 files changed, 47 insertions(+)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index c1a812bd5a27..91b65d859ca8 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -312,6 +312,9 @@ enum smca_bank_types {
SMCA_PB, /* Parameter Block */
SMCA_PSP, /* Platform Security Processor */
SMCA_SMU, /* System Management Unit */
+ SMCA_MP5, /* Microprocessor 5 Unit */
+ SMCA_NBIO, /* Northbridge IO Unit */
+ SMCA_PCIE, /* PCI Express Unit */
N_SMCA_BANK_TYPES
};

diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index ed3327342b40..00f60b8c7e4f 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -93,6 +93,9 @@ static struct smca_bank_name smca_names[] = {
[SMCA_PB] = { "param_block", "Parameter Block" },
[SMCA_PSP] = { "psp", "Platform Security Processor" },
[SMCA_SMU] = { "smu", "System Management Unit" },
+ [SMCA_MP5] = { "mp5", "Microprocessor 5 Unit" },
+ [SMCA_NBIO] = { "nbio", "Northbridge IO Unit" },
+ [SMCA_PCIE] = { "pcie", "PCI Express Unit" },
};

static u32 smca_bank_addrs[MAX_NR_BANKS][NR_BLOCKS] __ro_after_init =
@@ -162,6 +165,15 @@ static struct smca_hwid smca_hwid_mcatypes[] = {

/* System Management Unit MCA type */
{ SMCA_SMU, HWID_MCATYPE(0x01, 0x0), 0x1 },
+
+ /* Microprocessor 5 Unit MCA type */
+ { SMCA_MP5, HWID_MCATYPE(0x01, 0x2), 0x3FF },
+
+ /* Northbridge IO Unit MCA type */
+ { SMCA_NBIO, HWID_MCATYPE(0x18, 0x0), 0x1F },
+
+ /* PCI Express Unit MCA type */
+ { SMCA_PCIE, HWID_MCATYPE(0x46, 0x0), 0x1F },
};

struct smca_bank smca_banks[MAX_NR_BANKS];
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index c605089d899f..5ab4ab3f0ce6 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -285,6 +285,35 @@ static const char * const smca_smu_mce_desc[] = {
"SMU RAM ECC or parity error",
};

+static const char * const smca_mp5_mce_desc[] = {
+ "High SRAM ECC or parity error",
+ "Low SRAM ECC or parity error",
+ "Data Cache Bank A ECC or parity error",
+ "Data Cache Bank B ECC or parity error",
+ "Data Tag Cache Bank A ECC or parity error",
+ "Data Tag Cache Bank B ECC or parity error",
+ "Instruction Cache Bank A ECC or parity error",
+ "Instruction Cache Bank B ECC or parity error",
+ "Instruction Tag Cache Bank A ECC or parity error",
+ "Instruction Tag Cache Bank B ECC or parity error",
+};
+
+static const char * const smca_nbio_mce_desc[] = {
+ "ECC or Parity error",
+ "PCIE error",
+ "SDP ErrEvent error",
+ "SDP Egress Poison Error",
+ "IOHC Internal Poison Error",
+};
+
+static const char * const smca_pcie_mce_desc[] = {
+ "CCIX PER Message logging",
+ "CCIX Read Response with Status: Non-Data Error",
+ "CCIX Write Response with Status: Non-Data Error",
+ "CCIX Read Response with Status: Data Error",
+ "CCIX Non-okay write response with data error",
+};
+
struct smca_mce_desc {
const char * const *descs;
unsigned int num_descs;
@@ -304,6 +333,9 @@ static struct smca_mce_desc smca_mce_descs[] = {
[SMCA_PB] = { smca_pb_mce_desc, ARRAY_SIZE(smca_pb_mce_desc) },
[SMCA_PSP] = { smca_psp_mce_desc, ARRAY_SIZE(smca_psp_mce_desc) },
[SMCA_SMU] = { smca_smu_mce_desc, ARRAY_SIZE(smca_smu_mce_desc) },
+ [SMCA_MP5] = { smca_mp5_mce_desc, ARRAY_SIZE(smca_mp5_mce_desc) },
+ [SMCA_NBIO] = { smca_nbio_mce_desc, ARRAY_SIZE(smca_nbio_mce_desc) },
+ [SMCA_PCIE] = { smca_pcie_mce_desc, ARRAY_SIZE(smca_pcie_mce_desc) },
};

static bool f12h_mc0_mce(u16 ec, u8 xec)
--
2.17.1
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