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)) {
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 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 void decode_mc4_mce(struct mce *m)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
int node_id = amd_get_nb_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 (c->x86 == 0x11)
goto wrong_mc4_mce;
pr_cont("%s.\n", mc4_mce_desc[xec]);
if (nb_bus_decoder)
nb_bus_decoder(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 (boot_cpu_data.x86 == 0x15)
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 bool f10h_nb_mce(u16 ec, u8 xec)
{
bool ret = true;
u8 offset = 0;
if (k8_nb_mce(ec, xec))
return true;
switch(xec) {
case 0xa ... 0xc:
offset = 10;
break;
case 0xe:
offset = 11;
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
ret = false;
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;
default:
ret = false;
goto out;
break;
}
pr_cont("%s.\n", f10h_nb_mce_desc[xec - offset]);
out:
return ret;
}
static void amd_decode_ic_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Instruction Cache 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 (fam_ops->ic_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted IC MCE info?\n");
}
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 void amd_decode_dc_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "Data Cache Error: ");
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->dc_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted DC MCE info?\n");
}
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 (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
goto wrong_mc2_mce;
} else
goto wrong_mc2_mce;
} else
goto wrong_mc2_mce;
return;
wrong_mc2_mce:
pr_emerg(HW_ERR "Corrupted MC2 MCE info?\n");
}
static void decode_f15_mc2_mce(struct mce *m)
{
u16 ec = EC(m->status);
u8 xec = XEC(m->status, xec_mask);
pr_emerg(HW_ERR "MC2 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_f15_mc2_mce;
} else if (BUS_ERROR(ec)) {
if (xec > 2)
goto wrong_f15_mc2_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_mc2_mce_desc[xec - 0x4]);
break;
case 0x10 ... 0x14:
pr_cont("%s.\n", f15h_mc2_mce_desc[xec - 0x7]);
break;
default:
goto wrong_f15_mc2_mce;
}
}
return;
wrong_f15_mc2_mce:
pr_emerg(HW_ERR "Corrupted MC2 MCE info?\n");
}
