mbox series

[v2,0/8] Refactor the common parts to the HiSilicon Uncore PMU core and cleanups

Message ID 20241022145305.47056-1-yangyicong@huawei.com (mailing list archive)
Headers show
Series Refactor the common parts to the HiSilicon Uncore PMU core and cleanups | expand

Message

Yicong Yang Oct. 22, 2024, 2:52 p.m. UTC 
From: Yicong Yang <yangyicong@hisilicon.com>

This series mainly contains the refactor of the HiSilicon Uncore PMU by
extracting the common parts from each drivers into the core:
- the retrieving of the PMU topology ID
- the common sysfs attributes like cpumask and identifier

In order to achieve this, we need to do below preparation:
- improve the detection of associated CPUs for PMUs locates on a SICL
- maintain the topology information in a dedicated data structure
- provides a generic implementation of cpumask/identifier attributes

Besides also include below changes/cleanups in this patchset
- add one new sysfs attributes for better describing the topology information
  of the associated CPUs of the PMU.
- define a symbol namespace for HiSilicon Uncore PMUs to avoid pollute the
  common ones
- two minor nonfunctional cleanups of DDRC PMU

Changes since v1:
Address Jonathan's comments and add tags for some patches
- Provide a generic cpumask/identifier attribute group
- refine the comments/commit as suggested
Link: https://lore.kernel.org/linux-arm-kernel/20241018095745.57057-1-yangyicong@huawei.com/

Junhao He (2):
  drivers/perf: hisi: Fix incorrect variable name "hha_pmu" in DDRC PMU
    driver
  drivers/perf: hisi: Delete redundant blank line of DDRC PMU

Yicong Yang (6):
  drivers/perf: hisi: Define a symbol namespace for HiSilicon Uncore
    PMUs
  drivers/perf: hisi: Improve the detection of associated CPUs
  drivers/perf: hisi: Extract topology information to a separate
    structure
  drivers/perf: hisi: Add a common function to retrieve topology from
    firmware
  drivers/perf: hisi: Provide a generic implementation of
    cpumask/identifier
  drivers/perf: hisi: Export associated CPUs of each PMU through sysfs

 Documentation/admin-guide/perf/hisi-pmu.rst   |   5 +-
 drivers/perf/hisilicon/hisi_uncore_cpa_pmu.c  |  42 +---
 drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c |  61 ++----
 drivers/perf/hisilicon/hisi_uncore_hha_pmu.c  |  49 ++---
 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c  |  44 ++---
 drivers/perf/hisilicon/hisi_uncore_pa_pmu.c   |  53 ++---
 drivers/perf/hisilicon/hisi_uncore_pmu.c      | 182 ++++++++++++++----
 drivers/perf/hisilicon/hisi_uncore_pmu.h      |  48 ++++-
 drivers/perf/hisilicon/hisi_uncore_sllc_pmu.c |  43 +----
 drivers/perf/hisilicon/hisi_uncore_uc_pmu.c   |  45 ++---
 10 files changed, 270 insertions(+), 302 deletions(-)