mirror of
https://github.com/torvalds/linux.git
synced 2026-03-14 02:06:15 +01:00
8f6b6ad69b
The telemetry event aggregators of the Intel Clearwater Forest CPU support two RMID-based feature types: "energy" with GUID 0x26696143¹, and "perf" with GUID 0x26557651². The event counter offsets in an aggregator's MMIO space are arranged in groups for each RMID. E.g., the "energy" counters for GUID 0x26696143 are arranged like this: MMIO offset:0x0000 Counter for RMID 0 PMT_EVENT_ENERGY MMIO offset:0x0008 Counter for RMID 0 PMT_EVENT_ACTIVITY MMIO offset:0x0010 Counter for RMID 1 PMT_EVENT_ENERGY MMIO offset:0x0018 Counter for RMID 1 PMT_EVENT_ACTIVITY ... MMIO offset:0x23F0 Counter for RMID 575 PMT_EVENT_ENERGY MMIO offset:0x23F8 Counter for RMID 575 PMT_EVENT_ACTIVITY After all counters there are three status registers that provide indications of how many times an aggregator was unable to process event counts, the time stamp for the most recent loss of data, and the time stamp of the most recent successful update. MMIO offset:0x2400 AGG_DATA_LOSS_COUNT MMIO offset:0x2408 AGG_DATA_LOSS_TIMESTAMP MMIO offset:0x2410 LAST_UPDATE_TIMESTAMP Define event_group structures for both of these aggregator types and define the events tracked by the aggregators in the file system code. PMT_EVENT_ENERGY and PMT_EVENT_ACTIVITY are produced in fixed point format. File system code must output as floating point values. ¹https://github.com/intel/Intel-PMT/blob/main/xml/CWF/OOBMSM/RMID-ENERGY/cwf_aggregator.xml ²https://github.com/intel/Intel-PMT/blob/main/xml/CWF/OOBMSM/RMID-PERF/cwf_aggregator.xml [ bp: Massage commit message. ] Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com |
||
|---|---|---|
| .. | ||
| ctrlmondata.c | ||
| internal.h | ||
| Kconfig | ||
| Makefile | ||
| monitor.c | ||
| monitor_trace.h | ||
| pseudo_lock.c | ||
| rdtgroup.c | ||