Commit 128283a4 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

* 'mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, MCE: Fix NB error formatting
  EDAC, MCE: Use BIT_64() to eliminate warnings on 32-bit
  EDAC, MCE: Enable MCE decoding on F15h
  EDAC, MCE: Allow F15h bank 6 MCE injection
  EDAC, MCE: Shorten error report formatting
  EDAC, MCE: Overhaul error fields extraction macros
  EDAC, MCE: Add F15h FP MCE decoder
  EDAC, MCE: Add F15 EX MCE decoder
  EDAC, MCE: Add an F15h NB MCE decoder
  EDAC, MCE: No F15h LS MCE decoder
  EDAC, MCE: Add F15h CU MCE decoder
  EDAC, MCE: Add F15h IC MCE decoder
  EDAC, MCE: Add F15h DC MCE decoder
  EDAC, MCE: Select extended error code mask
parents 442d1ba2 6d5db466
......@@ -1950,8 +1950,8 @@ static void amd64_handle_ue(struct mem_ctl_info *mci,
static inline void __amd64_decode_bus_error(struct mem_ctl_info *mci,
struct err_regs *info)
{
u32 ec = ERROR_CODE(info->nbsl);
u32 xec = EXT_ERROR_CODE(info->nbsl);
u16 ec = EC(info->nbsl);
u8 xec = XEC(info->nbsl, 0x1f);
int ecc_type = (info->nbsh >> 13) & 0x3;
/* Bail early out if this was an 'observed' error */
......
......@@ -5,6 +5,7 @@
static struct amd_decoder_ops *fam_ops;
static u8 xec_mask = 0xf;
static u8 nb_err_cpumask = 0xf;
static bool report_gart_errors;
......@@ -74,57 +75,104 @@ static const char *f10h_nb_mce_desc[] = {
"ECC Error in the Probe Filter directory"
};
static bool f12h_dc_mce(u16 ec)
static const char * const f15h_ic_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 */
"patch RAM", /* xec = 010 */
"uop queue",
"insn buffer",
"predecode buffer",
"fetch address FIFO"
};
static const char * const f15h_cu_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 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 fr_ex_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 correctable error could not be corrected"
};
static bool f12h_dc_mce(u16 ec, u8 xec)
{
bool ret = false;
if (MEM_ERROR(ec)) {
u8 ll = ec & 0x3;
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", RRRR_MSG(ec));
pr_cont("Data/Tag %s error.\n", R4_MSG(ec));
else
ret = false;
}
return ret;
}
static bool f10h_dc_mce(u16 ec)
static bool f10h_dc_mce(u16 ec, u8 xec)
{
u8 r4 = (ec >> 4) & 0xf;
u8 ll = ec & 0x3;
if (r4 == R4_GEN && ll == LL_L1) {
if (R4(ec) == R4_GEN && LL(ec) == LL_L1) {
pr_cont("during data scrub.\n");
return true;
}
return f12h_dc_mce(ec);
return f12h_dc_mce(ec, xec);
}
static bool k8_dc_mce(u16 ec)
static bool k8_dc_mce(u16 ec, u8 xec)
{
if (BUS_ERROR(ec)) {
pr_cont("during system linefill.\n");
return true;
}
return f10h_dc_mce(ec);
return f10h_dc_mce(ec, xec);
}
static bool f14h_dc_mce(u16 ec)
static bool f14h_dc_mce(u16 ec, u8 xec)
{
u8 r4 = (ec >> 4) & 0xf;
u8 ll = ec & 0x3;
u8 tt = (ec >> 2) & 0x3;
u8 ii = tt;
u8 r4 = R4(ec);
bool ret = true;
if (MEM_ERROR(ec)) {
if (tt != TT_DATA || ll != LL_L1)
if (TT(ec) != TT_DATA || LL(ec) != LL_L1)
return false;
switch (r4) {
......@@ -144,7 +192,7 @@ static bool f14h_dc_mce(u16 ec)
}
} else if (BUS_ERROR(ec)) {
if ((ii != II_MEM && ii != II_IO) || ll != LL_LG)
if ((II(ec) != II_MEM && II(ec) != II_IO) || LL(ec) != LL_LG)
return false;
pr_cont("System read data error on a ");
......@@ -169,39 +217,78 @@ static bool f14h_dc_mce(u16 ec)
return ret;
}
static bool f15h_dc_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("during system linefill.\n");
else
pr_cont(" Internal %s condition.\n",
((xec == 1) ? "livelock" : "deadlock"));
} else
ret = false;
return ret;
}
static void amd_decode_dc_mce(struct mce *m)
{
u16 ec = m->status & 0xffff;
u8 xec = (m->status >> 16) & 0xf;
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Data Cache Error: ");
/* TLB error signatures are the same across families */
if (TLB_ERROR(ec)) {
u8 tt = (ec >> 2) & 0x3;
if (tt == TT_DATA) {
if (TT(ec) == TT_DATA) {
pr_cont("%s TLB %s.\n", LL_MSG(ec),
(xec ? "multimatch" : "parity error"));
((xec == 2) ? "locked miss"
: (xec ? "multimatch" : "parity")));
return;
}
else
goto wrong_dc_mce;
}
if (!fam_ops->dc_mce(ec))
goto wrong_dc_mce;
return;
wrong_dc_mce:
pr_emerg(HW_ERR "Corrupted DC MCE info?\n");
} else if (fam_ops->dc_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted DC MCE info?\n");
}
static bool k8_ic_mce(u16 ec)
static bool k8_ic_mce(u16 ec, u8 xec)
{
u8 ll = ec & 0x3;
u8 r4 = (ec >> 4) & 0xf;
u8 ll = LL(ec);
bool ret = true;
if (!MEM_ERROR(ec))
......@@ -210,7 +297,7 @@ static bool k8_ic_mce(u16 ec)
if (ll == 0x2)
pr_cont("during a linefill from L2.\n");
else if (ll == 0x1) {
switch (r4) {
switch (R4(ec)) {
case R4_IRD:
pr_cont("Parity error during data load.\n");
break;
......@@ -233,15 +320,13 @@ static bool k8_ic_mce(u16 ec)
return ret;
}
static bool f14h_ic_mce(u16 ec)
static bool f14h_ic_mce(u16 ec, u8 xec)
{
u8 ll = ec & 0x3;
u8 tt = (ec >> 2) & 0x3;
u8 r4 = (ec >> 4) & 0xf;
u8 r4 = R4(ec);
bool ret = true;
if (MEM_ERROR(ec)) {
if (tt != 0 || ll != 1)
if (TT(ec) != 0 || LL(ec) != 1)
ret = false;
if (r4 == R4_IRD)
......@@ -254,10 +339,36 @@ static bool f14h_ic_mce(u16 ec)
return ret;
}
static bool f15h_ic_mce(u16 ec, u8 xec)
{
bool ret = true;
if (!MEM_ERROR(ec))
return false;
switch (xec) {
case 0x0 ... 0xa:
pr_cont("%s.\n", f15h_ic_mce_desc[xec]);
break;
case 0xd:
pr_cont("%s.\n", f15h_ic_mce_desc[xec-2]);
break;
case 0x10 ... 0x14:
pr_cont("Decoder %s parity error.\n", f15h_ic_mce_desc[xec-4]);
break;
default:
ret = false;
}
return ret;
}
static void amd_decode_ic_mce(struct mce *m)
{
u16 ec = m->status & 0xffff;
u8 xec = (m->status >> 16) & 0xf;
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Instruction Cache Error: ");
......@@ -268,7 +379,7 @@ static void amd_decode_ic_mce(struct mce *m)
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 (fam_ops->ic_mce(ec))
} else if (fam_ops->ic_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted IC MCE info?\n");
......@@ -276,8 +387,8 @@ static void amd_decode_ic_mce(struct mce *m)
static void amd_decode_bu_mce(struct mce *m)
{
u32 ec = m->status & 0xffff;
u32 xec = (m->status >> 16) & 0xf;
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Bus Unit Error");
......@@ -286,23 +397,23 @@ static void amd_decode_bu_mce(struct mce *m)
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", RRRR_MSG(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",
RRRR_MSG(ec), PP_MSG(ec));
R4_MSG(ec), PP_MSG(ec));
else if (MEM_ERROR(ec)) {
u8 rrrr = (ec >> 4) & 0xf;
u8 r4 = R4(ec);
if (rrrr >= 0x7)
if (r4 >= 0x7)
pr_cont(": %s error during data copyback.\n",
RRRR_MSG(ec));
else if (rrrr <= 0x1)
R4_MSG(ec));
else if (r4 <= 0x1)
pr_cont(": %s parity/ECC error during data "
"access from L2.\n", RRRR_MSG(ec));
"access from L2.\n", R4_MSG(ec));
else
goto wrong_bu_mce;
} else
......@@ -316,12 +427,52 @@ wrong_bu_mce:
pr_emerg(HW_ERR "Corrupted BU MCE info?\n");
}
static void amd_decode_cu_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Combined Unit Error: ");
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
goto wrong_cu_mce;
} else if (BUS_ERROR(ec)) {
if (xec > 2)
goto wrong_cu_mce;
pr_cont("Error during attempted NB data read.\n");
} else if (MEM_ERROR(ec)) {
switch (xec) {
case 0x4 ... 0xc:
pr_cont("%s.\n", f15h_cu_mce_desc[xec - 0x4]);
break;
case 0x10 ... 0x14:
pr_cont("%s.\n", f15h_cu_mce_desc[xec - 0x7]);
break;
default:
goto wrong_cu_mce;
}
}
return;
wrong_cu_mce:
pr_emerg(HW_ERR "Corrupted CU MCE info?\n");
}
static void amd_decode_ls_mce(struct mce *m)
{
u16 ec = m->status & 0xffff;
u8 xec = (m->status >> 16) & 0xf;
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
if (boot_cpu_data.x86 == 0x14) {
if (boot_cpu_data.x86 >= 0x14) {
pr_emerg("You shouldn't be seeing an LS MCE on this cpu family,"
" please report on LKML.\n");
return;
......@@ -330,12 +481,12 @@ static void amd_decode_ls_mce(struct mce *m)
pr_emerg(HW_ERR "Load Store Error");
if (xec == 0x0) {
u8 r4 = (ec >> 4) & 0xf;
u8 r4 = R4(ec);
if (!BUS_ERROR(ec) || (r4 != R4_DRD && r4 != R4_DWR))
goto wrong_ls_mce;
pr_cont(" during %s.\n", RRRR_MSG(ec));
pr_cont(" during %s.\n", R4_MSG(ec));
} else
goto wrong_ls_mce;
......@@ -410,6 +561,15 @@ static bool f10h_nb_mce(u16 ec, u8 xec)
goto out;
break;
case 0x19:
if (boot_cpu_data.x86 == 0x15)
pr_cont("Compute Unit Data Error.\n");
else
ret = false;
goto out;
break;
case 0x1c ... 0x1f:
offset = 24;
break;
......@@ -434,27 +594,30 @@ static bool nb_noop_mce(u16 ec, u8 xec)
void amd_decode_nb_mce(int node_id, struct mce *m, u32 nbcfg)
{
u8 xec = (m->status >> 16) & 0x1f;
u16 ec = m->status & 0xffff;
u16 ec = EC(m->status);
u8 xec = XEC(m->status, 0x1f);
u32 nbsh = (u32)(m->status >> 32);
int core = -1;
pr_emerg(HW_ERR "Northbridge Error, node %d: ", node_id);
pr_emerg(HW_ERR "Northbridge Error (node %d", node_id);
/*
* F10h, revD can disable ErrCpu[3:0] so check that first and also the
* value encoding has changed so interpret those differently
*/
/* F10h, revD can disable ErrCpu[3:0] through ErrCpuVal */
if ((boot_cpu_data.x86 == 0x10) &&
(boot_cpu_data.x86_model > 7)) {
if (nbsh & K8_NBSH_ERR_CPU_VAL)
pr_cont(", core: %u", (u8)(nbsh & nb_err_cpumask));
core = nbsh & nb_err_cpumask;
} else {
u8 assoc_cpus = nbsh & nb_err_cpumask;
if (assoc_cpus > 0)
pr_cont(", core: %d", fls(assoc_cpus) - 1);
core = fls(assoc_cpus) - 1;
}
if (core >= 0)
pr_cont(", core %d): ", core);
else
pr_cont("): ");
switch (xec) {
case 0x2:
pr_cont("Sync error (sync packets on HT link detected).\n");
......@@ -496,35 +659,89 @@ EXPORT_SYMBOL_GPL(amd_decode_nb_mce);
static void amd_decode_fr_mce(struct mce *m)
{
if (boot_cpu_data.x86 == 0xf ||
boot_cpu_data.x86 == 0x11)
struct cpuinfo_x86 *c = &boot_cpu_data;
u8 xec = XEC(m->status, xec_mask);
if (c->x86 == 0xf || c->x86 == 0x11)
goto wrong_fr_mce;
/* we have only one error signature so match all fields at once. */
if ((m->status & 0xffff) == 0x0f0f) {
pr_emerg(HW_ERR "FR Error: CPU Watchdog timer expire.\n");
return;
}
if (c->x86 != 0x15 && xec != 0x0)
goto wrong_fr_mce;
pr_emerg(HW_ERR "%s Error: ",
(c->x86 == 0x15 ? "Execution Unit" : "FIROB"));
if (xec == 0x0 || xec == 0xc)
pr_cont("%s.\n", fr_ex_mce_desc[xec]);
else if (xec < 0xd)
pr_cont("%s parity error.\n", fr_ex_mce_desc[xec]);
else
goto wrong_fr_mce;
return;
wrong_fr_mce:
pr_emerg(HW_ERR "Corrupted FR MCE info?\n");
}
static void amd_decode_fp_mce(struct mce *m)
{
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Floating Point Unit Error: ");
switch (xec) {
case 0x1:
pr_cont("Free List");
break;
case 0x2:
pr_cont("Physical Register File");
break;
case 0x3:
pr_cont("Retire Queue");
break;
case 0x4:
pr_cont("Scheduler table");
break;
case 0x5:
pr_cont("Status Register File");
break;
default:
goto wrong_fp_mce;
break;
}
pr_cont(" parity error.\n");
return;
wrong_fp_mce:
pr_emerg(HW_ERR "Corrupted FP MCE info?\n");
}
static inline void amd_decode_err_code(u16 ec)
{
if (TLB_ERROR(ec)) {
pr_emerg(HW_ERR "Transaction: %s, Cache Level: %s\n",
TT_MSG(ec), LL_MSG(ec));
} else if (MEM_ERROR(ec)) {
pr_emerg(HW_ERR "Transaction: %s, Type: %s, Cache Level: %s\n",
RRRR_MSG(ec), TT_MSG(ec), LL_MSG(ec));
} else if (BUS_ERROR(ec)) {
pr_emerg(HW_ERR "Transaction: %s (%s), %s, Cache Level: %s, "
"Participating Processor: %s\n",
RRRR_MSG(ec), II_MSG(ec), TO_MSG(ec), LL_MSG(ec),
PP_MSG(ec));
} else
pr_emerg(HW_ERR "Huh? Unknown MCE error 0x%x\n", ec);
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");
}
/*
......@@ -546,25 +763,32 @@ static bool amd_filter_mce(struct mce *m)
int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
{
struct mce *m = (struct mce *)data;
struct cpuinfo_x86 *c = &boot_cpu_data;
int node, ecc;
if (amd_filter_mce(m))
return NOTIFY_STOP;
pr_emerg(HW_ERR "MC%d_STATUS: ", m->bank);
pr_emerg(HW_ERR "MC%d_STATUS[%s|%s|%s|%s|%s",
m->bank,
((m->status & MCI_STATUS_OVER) ? "Over" : "-"),
((m->status & MCI_STATUS_UC) ? "UE" : "CE"),
((m->status & MCI_STATUS_MISCV) ? "MiscV" : "-"),
((m->status & MCI_STATUS_PCC) ? "PCC" : "-"),
((m->status & MCI_STATUS_ADDRV) ? "AddrV" : "-"));
pr_cont("%sorrected error, other errors lost: %s, "
"CPU context corrupt: %s",
((m->status & MCI_STATUS_UC) ? "Unc" : "C"),