// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/slab.h>
#include <asm /cpu.h>
#include <asm /msr.h>
#include "mce_amd.h"
static struct amd_decoder_ops fam_ops;
static u8 xec_mask = 0xf;
static void (*decode_dram_ecc)(int node_id, struct mce *m);
void amd_register_ecc_decoder(void (*f)(int , struct mce *))
{
decode_dram_ecc = f;
}
EXPORT_SYMBOL_GPL(amd_register_ecc_decoder);
void amd_unregister_ecc_decoder(void (*f)(int , struct mce *))
{
if (decode_dram_ecc) {
WARN_ON(decode_dram_ecc != f);
decode_dram_ecc = NULL;
}
}
EXPORT_SYMBOL_GPL(amd_unregister_ecc_decoder);
/*
* string representation for the different MCA reported error types, see F3x48
* or MSR0000_0411.
*/
/* transaction type */
static const char * const tt_msgs[] = { "INSN" , "DATA" , "GEN" , "RESV" };
/* cache level */
static const char * const ll_msgs[] = { "RESV" , "L1" , "L2" , "L3/GEN" };
/* memory transaction type */
static const char * const rrrr_msgs[] = {
"GEN" , "RD" , "WR" , "DRD" , "DWR" , "IRD" , "PRF" , "EV" , "SNP"
};
/* participating processor */
const char * const pp_msgs[] = { "SRC" , "RES" , "OBS" , "GEN" };
EXPORT_SYMBOL_GPL(pp_msgs);
/* request timeout */
static const char * const to_msgs[] = { "no timeout" , "timed out" };
/* memory or i/o */
static const char * const ii_msgs[] = { "MEM" , "RESV" , "IO" , "GEN" };
/* internal error type */
static const char * const uu_msgs[] = { "RESV" , "RESV" , "HWA" , "RESV" };
static const char * const f15h_mc1_mce_desc[] = {
"UC during a demand linefill from L2" ,
"Parity error during data load from IC" ,
"Parity error for IC valid bit" ,
"Main tag parity error" ,
"Parity error in prediction queue" ,
"PFB data/address parity error" ,
"Parity error in the branch status reg" ,
"PFB promotion address error" ,
"Tag error during probe/victimization" ,
"Parity error for IC probe tag valid bit" ,
"PFB non-cacheable bit parity error" ,
"PFB valid bit parity error" , /* xec = 0xd */
"Microcode Patch Buffer" , /* xec = 010 */
"uop queue" ,
"insn buffer" ,
"predecode buffer" ,
"fetch address FIFO" ,
"dispatch uop queue"
};
static const char * const f15h_mc2_mce_desc[] = {
"Fill ECC error on data fills" , /* xec = 0x4 */
"Fill parity error on insn fills" ,
"Prefetcher request FIFO parity error" ,
"PRQ address parity error" ,
"PRQ data parity error" ,
"WCC Tag ECC error" ,
"WCC Data ECC error" ,
"WCB Data parity error" ,
"VB Data ECC or parity error" ,
"L2 Tag ECC error" , /* xec = 0x10 */
"Hard L2 Tag ECC error" ,
"Multiple hits on L2 tag" ,
"XAB parity error" ,
"PRB address parity error"
};
static const char * const mc4_mce_desc[] = {
"DRAM ECC error detected on the NB" ,
"CRC error detected on HT link" ,
"Link-defined sync error packets detected on HT link" ,
"HT Master abort" ,
"HT Target abort" ,
"Invalid GART PTE entry during GART table walk" ,
"Unsupported atomic RMW received from an IO link" ,
"Watchdog timeout due to lack of progress" ,
"DRAM ECC error detected on the NB" ,
"SVM DMA Exclusion Vector error" ,
"HT data error detected on link" ,
"Protocol error (link, L3, probe filter)" ,
"NB internal arrays parity error" ,
"DRAM addr/ctl signals parity error" ,
"IO link transmission error" ,
"L3 data cache ECC error" , /* xec = 0x1c */
"L3 cache tag error" ,
"L3 LRU parity bits error" ,
"ECC Error in the Probe Filter directory"
};
static const char * const mc5_mce_desc[] = {
"CPU Watchdog timer expire" ,
"Wakeup array dest tag" ,
"AG payload array" ,
"EX payload array" ,
"IDRF array" ,
"Retire dispatch queue" ,
"Mapper checkpoint array" ,
"Physical register file EX0 port" ,
"Physical register file EX1 port" ,
"Physical register file AG0 port" ,
"Physical register file AG1 port" ,
"Flag register file" ,
"DE error occurred" ,
"Retire status queue"
};
static const char * const mc6_mce_desc[] = {
"Hardware Assertion" ,
"Free List" ,
"Physical Register File" ,
"Retire Queue" ,
"Scheduler table" ,
"Status Register File" ,
};
static bool f12h_mc0_mce(u16 ec, u8 xec)
{
bool ret = false ;
if (MEM_ERROR(ec)) {
u8 ll = LL(ec);
ret = true ;
if (ll == LL_L2)
pr_cont("during L1 linefill from L2.\n" );
else if (ll == LL_L1)
pr_cont("Data/Tag %s error.\n" , R4_MSG(ec));
else
ret = false ;
}
return ret;
}
static bool f10h_mc0_mce(u16 ec, u8 xec)
{
if (R4(ec) == R4_GEN && LL(ec) == LL_L1) {
pr_cont("during data scrub.\n" );
return true ;
}
return f12h_mc0_mce(ec, xec);
}
static bool k8_mc0_mce(u16 ec, u8 xec)
{
if (BUS_ERROR(ec)) {
pr_cont("during system linefill.\n" );
return true ;
}
return f10h_mc0_mce(ec, xec);
}
static bool cat_mc0_mce(u16 ec, u8 xec)
{
u8 r4 = R4(ec);
bool ret = true ;
if (MEM_ERROR(ec)) {
if (TT(ec) != TT_DATA || LL(ec) != LL_L1)
return false ;
switch (r4) {
case R4_DRD:
case R4_DWR:
pr_cont("Data/Tag parity error due to %s.\n" ,
(r4 == R4_DRD ? "load/hw prf" : "store" ));
break ;
case R4_EVICT:
pr_cont("Copyback parity error on a tag miss.\n" );
break ;
case R4_SNOOP:
pr_cont("Tag parity error during snoop.\n" );
break ;
default :
ret = false ;
}
} else if (BUS_ERROR(ec)) {
if ((II(ec) != II_MEM && II(ec) != II_IO) || LL(ec) != LL_LG)
return false ;
pr_cont("System read data error on a " );
switch (r4) {
case R4_RD:
pr_cont("TLB reload.\n" );
break ;
case R4_DWR:
pr_cont("store.\n" );
break ;
case R4_DRD:
pr_cont("load.\n" );
break ;
default :
ret = false ;
}
} else {
ret = false ;
}
return ret;
}
static bool f15h_mc0_mce(u16 ec, u8 xec)
{
bool ret = true ;
if (MEM_ERROR(ec)) {
switch (xec) {
case 0x0:
pr_cont("Data Array access error.\n" );
break ;
case 0x1:
pr_cont("UC error during a linefill from L2/NB.\n" );
break ;
case 0x2:
case 0x11:
pr_cont("STQ access error.\n" );
break ;
case 0x3:
pr_cont("SCB access error.\n" );
break ;
case 0x10:
pr_cont("Tag error.\n" );
break ;
case 0x12:
pr_cont("LDQ access error.\n" );
break ;
default :
ret = false ;
}
} else if (BUS_ERROR(ec)) {
if (!xec)
pr_cont("System Read Data Error.\n" );
else
pr_cont(" Internal error condition type %d.\n" , xec);
} else if (INT_ERROR(ec)) {
if (xec <= 0x1f)
pr_cont("Hardware Assert.\n" );
else
ret = false ;
} else
ret = false ;
return ret;
}
static void decode_mc0_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "MC0 Error: " );
/* TLB error signatures are the same across families */
if (TLB_ERROR(ec)) {
if (TT(ec) == TT_DATA) {
pr_cont("%s TLB %s.\n" , LL_MSG(ec),
((xec == 2) ? "locked miss"
: (xec ? "multimatch" : "parity" )));
return ;
}
} else if (fam_ops.mc0_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted MC0 MCE info?\n" );
}
static bool k8_mc1_mce(u16 ec, u8 xec)
{
u8 ll = LL(ec);
bool ret = true ;
if (!MEM_ERROR(ec))
return false ;
if (ll == 0x2)
pr_cont("during a linefill from L2.\n" );
else if (ll == 0x1) {
switch (R4(ec)) {
case R4_IRD:
pr_cont("Parity error during data load.\n" );
break ;
case R4_EVICT:
pr_cont("Copyback Parity/Victim error.\n" );
break ;
case R4_SNOOP:
pr_cont("Tag Snoop error.\n" );
break ;
default :
ret = false ;
break ;
}
} else
ret = false ;
return ret;
}
static bool cat_mc1_mce(u16 ec, u8 xec)
{
u8 r4 = R4(ec);
bool ret = true ;
if (!MEM_ERROR(ec))
return false ;
if (TT(ec) != TT_INSTR)
return false ;
if (r4 == R4_IRD)
pr_cont("Data/tag array parity error for a tag hit.\n" );
else if (r4 == R4_SNOOP)
pr_cont("Tag error during snoop/victimization.\n" );
else if (xec == 0x0)
pr_cont("Tag parity error from victim castout.\n" );
else if (xec == 0x2)
pr_cont("Microcode patch RAM parity error.\n" );
else
ret = false ;
return ret;
}
static bool f15h_mc1_mce(u16 ec, u8 xec)
{
bool ret = true ;
if (!MEM_ERROR(ec))
return false ;
switch (xec) {
case 0x0 ... 0xa:
pr_cont("%s.\n" , f15h_mc1_mce_desc[xec]);
break ;
case 0xd:
pr_cont("%s.\n" , f15h_mc1_mce_desc[xec-2]);
break ;
case 0x10:
pr_cont("%s.\n" , f15h_mc1_mce_desc[xec-4]);
break ;
case 0x11 ... 0x15:
pr_cont("Decoder %s parity error.\n" , f15h_mc1_mce_desc[xec-4]);
break ;
default :
ret = false ;
}
return ret;
}
static void decode_mc1_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "MC1 Error: " );
if (TLB_ERROR(ec))
pr_cont("%s TLB %s.\n" , LL_MSG(ec),
(xec ? "multimatch" : "parity error" ));
else if (BUS_ERROR(ec)) {
bool k8 = (boot_cpu_data.x86 == 0xf && (m->status & BIT_64(58)));
pr_cont("during %s.\n" , (k8 ? "system linefill" : "NB data read" ));
} else if (INT_ERROR(ec)) {
if (xec <= 0x3f)
pr_cont("Hardware Assert.\n" );
else
goto wrong_mc1_mce;
} else if (fam_ops.mc1_mce(ec, xec))
;
else
goto wrong_mc1_mce;
return ;
wrong_mc1_mce:
pr_emerg(HW_ERR "Corrupted MC1 MCE info?\n" );
}
static bool k8_mc2_mce(u16 ec, u8 xec)
{
bool ret = true ;
if (xec == 0x1)
pr_cont(" in the write data buffers.\n" );
else if (xec == 0x3)
pr_cont(" in the victim data buffers.\n" );
else if (xec == 0x2 && MEM_ERROR(ec))
pr_cont(": %s error in the L2 cache tags.\n" , R4_MSG(ec));
else if (xec == 0x0) {
if (TLB_ERROR(ec))
pr_cont("%s error in a Page Descriptor Cache or Guest TLB.\n" ,
TT_MSG(ec));
else if (BUS_ERROR(ec))
pr_cont(": %s/ECC error in data read from NB: %s.\n" ,
R4_MSG(ec), PP_MSG(ec));
else if (MEM_ERROR(ec)) {
u8 r4 = R4(ec);
if (r4 >= 0x7)
pr_cont(": %s error during data copyback.\n" ,
R4_MSG(ec));
else if (r4 <= 0x1)
pr_cont(": %s parity/ECC error during data "
"access from L2.\n" , R4_MSG(ec));
else
ret = false ;
} else
ret = false ;
} else
ret = false ;
return ret;
}
static bool f15h_mc2_mce(u16 ec, u8 xec)
{
bool ret = true ;
if (TLB_ERROR(ec)) {
if (xec == 0x0)
pr_cont("Data parity TLB read error.\n" );
else if (xec == 0x1)
pr_cont("Poison data provided for TLB fill.\n" );
else
ret = false ;
} else if (BUS_ERROR(ec)) {
if (xec > 2)
ret = false ;
pr_cont("Error during attempted NB data read.\n" );
} else if (MEM_ERROR(ec)) {
switch (xec) {
case 0x4 ... 0xc:
pr_cont("%s.\n" , f15h_mc2_mce_desc[xec - 0x4]);
break ;
case 0x10 ... 0x14:
pr_cont("%s.\n" , f15h_mc2_mce_desc[xec - 0x7]);
break ;
default :
ret = false ;
}
} else if (INT_ERROR(ec)) {
if (xec <= 0x3f)
pr_cont("Hardware Assert.\n" );
else
ret = false ;
}
return ret;
}
static bool f16h_mc2_mce(u16 ec, u8 xec)
{
u8 r4 = R4(ec);
if (!MEM_ERROR(ec))
return false ;
switch (xec) {
case 0x04 ... 0x05:
pr_cont("%cBUFF parity error.\n" , (r4 == R4_RD) ? 'I' : 'O' );
break ;
case 0x09 ... 0x0b:
case 0x0d ... 0x0f:
pr_cont("ECC error in L2 tag (%s).\n" ,
((r4 == R4_GEN) ? "BankReq" :
((r4 == R4_SNOOP) ? "Prb" : "Fill" )));
break ;
case 0x10 ... 0x19:
case 0x1b:
pr_cont("ECC error in L2 data array (%s).\n" ,
(((r4 == R4_RD) && !(xec & 0x3)) ? "Hit" :
((r4 == R4_GEN) ? "Attr" :
((r4 == R4_EVICT) ? "Vict" : "Fill" ))));
break ;
case 0x1c ... 0x1d:
case 0x1f:
pr_cont("Parity error in L2 attribute bits (%s).\n" ,
((r4 == R4_RD) ? "Hit" :
((r4 == R4_GEN) ? "Attr" : "Fill" )));
break ;
default :
return false ;
}
return true ;
}
static void decode_mc2_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "MC2 Error: " );
if (!fam_ops.mc2_mce(ec, xec))
pr_cont(HW_ERR "Corrupted MC2 MCE info?\n" );
}
static void decode_mc3_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
if (boot_cpu_data.x86 >= 0x14) {
pr_emerg("You shouldn't be seeing MC3 MCE on this cpu family,"
" please report on LKML.\n" );
return ;
}
pr_emerg(HW_ERR "MC3 Error" );
if (xec == 0x0) {
u8 r4 = R4(ec);
if (!BUS_ERROR(ec) || (r4 != R4_DRD && r4 != R4_DWR))
goto wrong_mc3_mce;
pr_cont(" during %s.\n" , R4_MSG(ec));
} else
goto wrong_mc3_mce;
return ;
wrong_mc3_mce:
pr_emerg(HW_ERR "Corrupted MC3 MCE info?\n" );
}
static void decode_mc4_mce(struct mce *m)
{
unsigned int fam = x86_family(m->cpuid);
int node_id = topology_amd_node_id(m->extcpu);
u16 ec = EC(m->status);
u8 xec = XEC(m->status, 0x1f);
u8 offset = 0;
pr_emerg(HW_ERR "MC4 Error (node %d): " , node_id);
switch (xec) {
case 0x0 ... 0xe:
/* special handling for DRAM ECCs */
if (xec == 0x0 || xec == 0x8) {
/* no ECCs on F11h */
if (fam == 0x11)
goto wrong_mc4_mce;
pr_cont("%s.\n" , mc4_mce_desc[xec]);
if (decode_dram_ecc)
decode_dram_ecc(node_id, m);
return ;
}
break ;
case 0xf:
if (TLB_ERROR(ec))
pr_cont("GART Table Walk data error.\n" );
else if (BUS_ERROR(ec))
pr_cont("DMA Exclusion Vector Table Walk error.\n" );
else
goto wrong_mc4_mce;
return ;
case 0x19:
if (fam == 0x15 || fam == 0x16)
pr_cont("Compute Unit Data Error.\n" );
else
goto wrong_mc4_mce;
return ;
case 0x1c ... 0x1f:
offset = 13;
break ;
default :
goto wrong_mc4_mce;
}
pr_cont("%s.\n" , mc4_mce_desc[xec - offset]);
return ;
wrong_mc4_mce:
pr_emerg(HW_ERR "Corrupted MC4 MCE info?\n" );
}
static void decode_mc5_mce(struct mce *m)
{
unsigned int fam = x86_family(m->cpuid);
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
if (fam == 0xf || fam == 0x11)
goto wrong_mc5_mce;
pr_emerg(HW_ERR "MC5 Error: " );
if (INT_ERROR(ec)) {
if (xec <= 0x1f) {
pr_cont("Hardware Assert.\n" );
return ;
} else
goto wrong_mc5_mce;
}
if (xec == 0x0 || xec == 0xc)
pr_cont("%s.\n" , mc5_mce_desc[xec]);
else if (xec <= 0xd)
pr_cont("%s parity error.\n" , mc5_mce_desc[xec]);
else
goto wrong_mc5_mce;
return ;
wrong_mc5_mce:
pr_emerg(HW_ERR "Corrupted MC5 MCE info?\n" );
}
static void decode_mc6_mce(struct mce *m)
{
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "MC6 Error: " );
if (xec > 0x5)
goto wrong_mc6_mce;
pr_cont("%s parity error.\n" , mc6_mce_desc[xec]);
return ;
wrong_mc6_mce:
pr_emerg(HW_ERR "Corrupted MC6 MCE info?\n" );
}
static const char * const smca_long_names[] = {
[SMCA_LS ... SMCA_LS_V2] = "Load Store Unit" ,
[SMCA_IF] = "Instruction Fetch Unit" ,
[SMCA_L2_CACHE] = "L2 Cache" ,
[SMCA_DE] = "Decode Unit" ,
[SMCA_RESERVED] = "Reserved" ,
[SMCA_EX] = "Execution Unit" ,
[SMCA_FP] = "Floating Point Unit" ,
[SMCA_L3_CACHE] = "L3 Cache" ,
[SMCA_CS ... SMCA_CS_V2] = "Coherent Slave" ,
[SMCA_PIE] = "Power, Interrupts, etc." ,
/* UMC v2 is separate because both of them can exist in a single system. */
[SMCA_UMC] = "Unified Memory Controller" ,
[SMCA_UMC_V2] = "Unified Memory Controller v2" ,
[SMCA_PB] = "Parameter Block" ,
[SMCA_PSP ... SMCA_PSP_V2] = "Platform Security Processor" ,
[SMCA_SMU ... SMCA_SMU_V2] = "System Management Unit" ,
[SMCA_MP5] = "Microprocessor 5 Unit" ,
[SMCA_MPDMA] = "MPDMA Unit" ,
[SMCA_NBIO] = "Northbridge IO Unit" ,
[SMCA_PCIE ... SMCA_PCIE_V2] = "PCI Express Unit" ,
[SMCA_XGMI_PCS] = "Ext Global Memory Interconnect PCS Unit" ,
[SMCA_NBIF] = "NBIF Unit" ,
[SMCA_SHUB] = "System Hub Unit" ,
[SMCA_SATA] = "SATA Unit" ,
[SMCA_USB] = "USB Unit" ,
[SMCA_GMI_PCS] = "Global Memory Interconnect PCS Unit" ,
[SMCA_XGMI_PHY] = "Ext Global Memory Interconnect PHY Unit" ,
[SMCA_WAFL_PHY] = "WAFL PHY Unit" ,
[SMCA_GMI_PHY] = "Global Memory Interconnect PHY Unit" ,
};
static const char *smca_get_long_name(enum smca_bank_types t)
{
if (t >= N_SMCA_BANK_TYPES)
return NULL;
return smca_long_names[t];
}
/* Decode errors according to Scalable MCA specification */
static void decode_smca_error(struct mce *m)
{
enum smca_bank_types bank_type = smca_get_bank_type(m->extcpu, m->bank);
u8 xec = XEC(m->status, xec_mask);
if (bank_type >= N_SMCA_BANK_TYPES)
return ;
if (bank_type == SMCA_RESERVED) {
pr_emerg(HW_ERR "Bank %d is reserved.\n" , m->bank);
return ;
}
pr_emerg(HW_ERR "%s Ext. Error Code: %d" , smca_get_long_name(bank_type), xec);
if ((bank_type == SMCA_UMC || bank_type == SMCA_UMC_V2) &&
xec == 0 && decode_dram_ecc)
decode_dram_ecc(topology_amd_node_id(m->extcpu), m);
}
static inline void amd_decode_err_code(u16 ec)
{
if (INT_ERROR(ec)) {
pr_emerg(HW_ERR "internal: %s\n" , UU_MSG(ec));
return ;
}
pr_emerg(HW_ERR "cache level: %s" , LL_MSG(ec));
if (BUS_ERROR(ec))
pr_cont(", mem/io: %s" , II_MSG(ec));
else
pr_cont(", tx: %s" , TT_MSG(ec));
if (MEM_ERROR(ec) || BUS_ERROR(ec)) {
pr_cont(", mem-tx: %s" , R4_MSG(ec));
if (BUS_ERROR(ec))
pr_cont(", part-proc: %s (%s)" , PP_MSG(ec), TO_MSG(ec));
}
pr_cont("\n" );
}
static const char *decode_error_status(struct mce *m)
{
if (m->status & MCI_STATUS_UC) {
if (m->status & MCI_STATUS_PCC)
return "System Fatal error." ;
if (m->mcgstatus & MCG_STATUS_RIPV)
return "Uncorrected, software restartable error." ;
return "Uncorrected, software containable error." ;
}
if (m->status & MCI_STATUS_DEFERRED)
return "Deferred error, no action required." ;
return "Corrected error, no action required." ;
}
static int
amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
{
struct mce *m = (struct mce *)data;
struct mce_hw_err *err = to_mce_hw_err(m);
unsigned int fam = x86_family(m->cpuid);
u32 mca_config_lo = 0, dummy;
int ecc;
if (m->kflags & MCE_HANDLED_CEC)
return NOTIFY_DONE;
pr_emerg(HW_ERR "%s\n" , decode_error_status(m));
pr_emerg(HW_ERR "CPU:%d (%x:%x:%x) MC%d_STATUS[%s|%s|%s|%s|%s" ,
m->extcpu,
fam, x86_model(m->cpuid), x86_stepping(m->cpuid),
m->bank,
((m->status & MCI_STATUS_OVER) ? "Over" : "-" ),
((m->status & MCI_STATUS_UC) ? "UE" :
(m->status & MCI_STATUS_DEFERRED) ? "-" : "CE" ),
((m->status & MCI_STATUS_MISCV) ? "MiscV" : "-" ),
((m->status & MCI_STATUS_ADDRV) ? "AddrV" : "-" ),
((m->status & MCI_STATUS_PCC) ? "PCC" : "-" ));
if (boot_cpu_has(X86_FEATURE_SMCA)) {
rdmsr_safe(MSR_AMD64_SMCA_MCx_CONFIG(m->bank), &mca_config_lo, &dummy);
if (mca_config_lo & MCI_CONFIG_MCAX)
pr_cont("|%s" , ((m->status & MCI_STATUS_TCC) ? "TCC" : "-" ));
pr_cont("|%s" , ((m->status & MCI_STATUS_SYNDV) ? "SyndV" : "-" ));
}
/* do the two bits[14:13] together */
ecc = (m->status >> 45) & 0x3;
if (ecc)
pr_cont("|%sECC" , ((ecc == 2) ? "C" : "U" ));
if (fam >= 0x15) {
pr_cont("|%s" , (m->status & MCI_STATUS_DEFERRED ? "Deferred" : "-" ));
/* F15h, bank4, bit 43 is part of McaStatSubCache. */
if (fam != 0x15 || m->bank != 4)
pr_cont("|%s" , (m->status & MCI_STATUS_POISON ? "Poison" : "-" ));
}
if (fam >= 0x17)
pr_cont("|%s" , (m->status & MCI_STATUS_SCRUB ? "Scrub" : "-" ));
pr_cont("]: 0x%016llx\n" , m->status);
if (m->status & MCI_STATUS_ADDRV)
pr_emerg(HW_ERR "Error Addr: 0x%016llx\n" , m->addr);
if (m->ppin)
pr_emerg(HW_ERR "PPIN: 0x%016llx\n" , m->ppin);
if (boot_cpu_has(X86_FEATURE_SMCA)) {
pr_emerg(HW_ERR "IPID: 0x%016llx" , m->ipid);
if (m->status & MCI_STATUS_SYNDV) {
pr_cont(", Syndrome: 0x%016llx\n" , m->synd);
if (mca_config_lo & MCI_CONFIG_FRUTEXT) {
char frutext[17];
frutext[16] = '\0' ;
memcpy(&frutext[0], &err->vendor.amd.synd1, 8);
memcpy(&frutext[8], &err->vendor.amd.synd2, 8);
pr_emerg(HW_ERR "FRU Text: %s" , frutext);
}
}
pr_cont("\n" );
decode_smca_error(m);
goto err_code;
}
if (m->tsc)
pr_emerg(HW_ERR "TSC: %llu\n" , m->tsc);
/* Doesn't matter which member to test. */
if (!fam_ops.mc0_mce)
goto err_code;
switch (m->bank) {
case 0:
decode_mc0_mce(m);
break ;
case 1:
decode_mc1_mce(m);
break ;
case 2:
decode_mc2_mce(m);
break ;
case 3:
decode_mc3_mce(m);
break ;
case 4:
decode_mc4_mce(m);
break ;
case 5:
decode_mc5_mce(m);
break ;
case 6:
decode_mc6_mce(m);
break ;
default :
break ;
}
err_code:
amd_decode_err_code(m->status & 0xffff);
m->kflags |= MCE_HANDLED_EDAC;
return NOTIFY_OK;
}
static struct notifier_block amd_mce_dec_nb = {
.notifier_call = amd_decode_mce,
.priority = MCE_PRIO_EDAC,
};
static int __init mce_amd_init(void )
{
struct cpuinfo_x86 *c = &boot_cpu_data;
if (c->x86_vendor != X86_VENDOR_AMD &&
c->x86_vendor != X86_VENDOR_HYGON)
return -ENODEV;
if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
return -ENODEV;
if (boot_cpu_has(X86_FEATURE_SMCA)) {
xec_mask = 0x3f;
goto out;
}
switch (c->x86) {
case 0xf:
fam_ops.mc0_mce = k8_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break ;
case 0x10:
fam_ops.mc0_mce = f10h_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break ;
case 0x11:
fam_ops.mc0_mce = k8_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break ;
case 0x12:
fam_ops.mc0_mce = f12h_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break ;
case 0x14:
fam_ops.mc0_mce = cat_mc0_mce;
fam_ops.mc1_mce = cat_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break ;
case 0x15:
xec_mask = c->x86_model == 0x60 ? 0x3f : 0x1f;
fam_ops.mc0_mce = f15h_mc0_mce;
fam_ops.mc1_mce = f15h_mc1_mce;
fam_ops.mc2_mce = f15h_mc2_mce;
break ;
case 0x16:
xec_mask = 0x1f;
fam_ops.mc0_mce = cat_mc0_mce;
fam_ops.mc1_mce = cat_mc1_mce;
fam_ops.mc2_mce = f16h_mc2_mce;
break ;
case 0x17:
case 0x18:
pr_warn_once("Decoding supported only on Scalable MCA processors.\n" );
return -EINVAL;
default :
printk(KERN_WARNING "Huh? What family is it: 0x%x?!\n" , c->x86);
return -EINVAL;
}
out:
pr_info("MCE: In-kernel MCE decoding enabled.\n" );
mce_register_decode_chain(&amd_mce_dec_nb);
return 0;
}
early_initcall(mce_amd_init);
#ifdef MODULE
static void __exit mce_amd_exit(void )
{
mce_unregister_decode_chain(&amd_mce_dec_nb);
}
MODULE_DESCRIPTION("AMD MCE decoder" );
MODULE_ALIAS("edac-mce-amd" );
MODULE_LICENSE("GPL" );
module_exit(mce_amd_exit);
#endif
Messung V0.5 C=98 H=93 G=95
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