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| author | Quan Nguyen <quan@os.amperecomputing.com> | 2023-03-10 15:34:15 +0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 09:47:16 +0100 |
| commit | b0f64c80cb8c1adcdae59fa09bbc9d34adc29911 (patch) | |
| tree | e8d60dddf1a4db1c0b54035d59bab8b1d1308a6a /drivers/misc | |
| parent | f0312cbd2af1c458a8441bb7364133d8242446b8 (diff) | |
| download | linux-b0f64c80cb8c1adcdae59fa09bbc9d34adc29911.tar.gz linux-b0f64c80cb8c1adcdae59fa09bbc9d34adc29911.tar.bz2 linux-b0f64c80cb8c1adcdae59fa09bbc9d34adc29911.zip | |
misc: smpro-errmon: Add DIMM 2x Refresh rate event
In high temperature condition, JEDEC spec requires memory controller to
double the refresh rate. This commit adds event_dimm_2x_refresh sysfs
to report that events for all memory channels.
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20230310083416.3670980-2-quan@os.amperecomputing.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/smpro-errmon.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/smpro-errmon.c b/drivers/misc/smpro-errmon.c index d1431d419aa4..1635e881aefb 100644 --- a/drivers/misc/smpro-errmon.c +++ b/drivers/misc/smpro-errmon.c @@ -67,6 +67,7 @@ #define VRD_WARN_FAULT_EVENT_DATA 0x78 #define VRD_HOT_EVENT_DATA 0x79 #define DIMM_HOT_EVENT_DATA 0x7A +#define DIMM_2X_REFRESH_EVENT_DATA 0x96 #define MAX_READ_BLOCK_LENGTH 48 @@ -190,6 +191,7 @@ enum EVENT_TYPES { VRD_WARN_FAULT_EVENT, VRD_HOT_EVENT, DIMM_HOT_EVENT, + DIMM_2X_REFRESH_EVENT, NUM_EVENTS_TYPE, }; @@ -198,6 +200,7 @@ static u8 smpro_event_table[NUM_EVENTS_TYPE] = { VRD_WARN_FAULT_EVENT_DATA, VRD_HOT_EVENT_DATA, DIMM_HOT_EVENT_DATA, + DIMM_2X_REFRESH_EVENT_DATA, }; static ssize_t smpro_event_data_read(struct device *dev, @@ -463,6 +466,7 @@ static DEVICE_ATTR_RO(warn_pmpro); EVENT_RO(vrd_warn_fault, VRD_WARN_FAULT_EVENT); EVENT_RO(vrd_hot, VRD_HOT_EVENT); EVENT_RO(dimm_hot, DIMM_HOT_EVENT); +EVENT_RO(dimm_2x_refresh, DIMM_2X_REFRESH_EVENT); static struct attribute *smpro_errmon_attrs[] = { &dev_attr_overflow_core_ce.attr, @@ -488,6 +492,7 @@ static struct attribute *smpro_errmon_attrs[] = { &dev_attr_event_vrd_warn_fault.attr, &dev_attr_event_vrd_hot.attr, &dev_attr_event_dimm_hot.attr, + &dev_attr_event_dimm_2x_refresh.attr, NULL }; |