This patchset added support of ITS PMU, and new version of MN PMU.
ITS PMU supports counting number and latency of interrupts by
category, and statistics of micro-ops of ITS.
The new version of MN PMU added cycles event, to be used for MN
metric computing.
Changes:
v4:
- Moved unnecessary cpuhp states for each PMU drivers to hisi_uncore_pmu
framework as suggested by Robin.
- Reserve the ITS INT_ID filter slot for the lifetime of the event so
concurrent or multiplexed events cannot clobber the global filter
configuration.
Link to v3: https://lore.kernel.org/all/20260713125647.2958626-1-wangyushan12@huawei.com/
Link to Sashiko review report: https://sashiko.dev/#/patchset/20260713125647.2958626-1-wangyushan12%40huawei.com
v3:
- Added check_filter callback to refuse new filtered events when there
are already filtered ones running as per Sashiko.
Link to v2: https://lore.kernel.org/all/20260612093812.1249049-1-wangyushan12@huawei.com/
Link to Sashiko review report: https://sashiko.dev/#/message/20260612093812.1249049-1-wangyushan12%40huawei.com
v2:
- Added int_en filter to tell if int_id is used, enabling filtering
interrupt with 0 int_id per Sashiko.
- Changed event format width to align with register width per Sashiko.
Link to v1: https://lore.kernel.org/all/20260423152959.1458563-1-wangyushan12@huawei.com/
Link to Sashiko review report: https://sashiko.dev/#/patchset/20260423152959.1458563-1-wangyushan12%40huawei.com
Yifan Wu (1):
drivers/perf: hisi: Add cycle event for HIP13 MN PMU
Yushan Wang (2):
drivers/perf: hisi: Consolidate uncore PMU cpuhp states
drivers/perf: hisi: Add support for uncore ITS PMU
Documentation/admin-guide/perf/hisi-pmu.rst | 13 +
drivers/perf/hisilicon/Makefile | 2 +-
drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c | 34 +-
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 34 +-
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 34 +-
drivers/perf/hisilicon/hisi_uncore_its_pmu.c | 400 ++++++++++++++++++
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 21 +-
drivers/perf/hisilicon/hisi_uncore_mn_pmu.c | 98 +++--
drivers/perf/hisilicon/hisi_uncore_noc_pmu.c | 35 +-
drivers/perf/hisilicon/hisi_uncore_pa_pmu.c | 34 +-
drivers/perf/hisilicon/hisi_uncore_pmu.c | 25 ++
drivers/perf/hisilicon/hisi_uncore_pmu.h | 2 +
drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c | 34 +-
drivers/perf/hisilicon/hisi_uncore_uc_pmu.c | 36 +-
include/linux/cpuhotplug.h | 6 -
15 files changed, 537 insertions(+), 271 deletions(-)
create mode 100644 drivers/perf/hisilicon/hisi_uncore_its_pmu.c
--
2.33.0