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-rw-r--r--drivers/edac/amd64_edac.c13
-rw-r--r--drivers/edac/amd64_edac.h1
2 files changed, 9 insertions, 5 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 7446b4802a62..85b460b67838 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2974,10 +2974,14 @@ static inline void decode_bus_error(int node_id, struct mce *m)
* Currently, we can derive the channel number by looking at the 6th nibble in
* the instance_id. For example, instance_id=0xYXXXXX where Y is the channel
* number.
+ *
+ * For DRAM ECC errors, the Chip Select number is given in bits [2:0] of
+ * the MCA_SYND[ErrorInformation] field.
*/
-static int find_umc_channel(struct mce *m)
+static void umc_get_err_info(struct mce *m, struct err_info *err)
{
- return (m->ipid & GENMASK(31, 0)) >> 20;
+ err->channel = (m->ipid & GENMASK(31, 0)) >> 20;
+ err->csrow = m->synd & 0x7;
}
static void decode_umc_error(int node_id, struct mce *m)
@@ -2999,8 +3003,6 @@ static void decode_umc_error(int node_id, struct mce *m)
if (m->status & MCI_STATUS_DEFERRED)
ecc_type = 3;
- err.channel = find_umc_channel(m);
-
if (!(m->status & MCI_STATUS_SYNDV)) {
err.err_code = ERR_SYND;
goto log_error;
@@ -3015,7 +3017,7 @@ static void decode_umc_error(int node_id, struct mce *m)
err.err_code = ERR_CHANNEL;
}
- err.csrow = m->synd & 0x7;
+ pvt->ops->get_err_info(m, &err);
if (umc_normaddr_to_sysaddr(m->addr, pvt->mc_node_id, err.channel, &sys_addr)) {
err.err_code = ERR_NORM_ADDR;
@@ -3685,6 +3687,7 @@ static struct low_ops umc_ops = {
.ecc_enabled = umc_ecc_enabled,
.setup_mci_misc_attrs = umc_setup_mci_misc_attrs,
.dump_misc_regs = umc_dump_misc_regs,
+ .get_err_info = umc_get_err_info,
};
/* Use Family 16h versions for defaults and adjust as needed below. */
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 1c64fd4a14b1..e84fe0d4120a 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -470,6 +470,7 @@ struct low_ops {
bool (*ecc_enabled)(struct amd64_pvt *pvt);
void (*setup_mci_misc_attrs)(struct mem_ctl_info *mci);
void (*dump_misc_regs)(struct amd64_pvt *pvt);
+ void (*get_err_info)(struct mce *m, struct err_info *err);
};
int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset,