[PATCH v6 0/2] drivers/perf: hisi: Add support for PCIe PMU

[Qi Liu]

This patchset adds support for HiSilicon PCIe Performance Monitoring
Unit(PMU). It is a PCIe Root Complex integrated End Point(RCiEP) device
added on Hip09. Each PCIe Core has a PMU RCiEP to monitor multi root
ports and all Endpoints downstream these root ports.

HiSilicon PCIe PMU is supported to collect performance data of PCIe bus,
such as: bandwidth, latency etc.

This patchset is based on 5.13-rc3. 

Changes since v5:
- Fix some errors when build under ARCH=xtensa.
- Link: https://lore.kernel.org/linux-arm-kernel/1621946795-14046-1-git-send-email-liuqi115@xxxxxxxxxx/

Changes since v4:
- Replace irq_set_affinity_hint() with irq_set_affinity().
- Link: https://lore.kernel.org/linux-arm-kernel/1621417741-5229-1-git-send-email-liuqi115@xxxxxxxxxx/

Changes since v3:
- Fix some warnings when build under 32bits architecture.
- Address the comments from John.
- Link: https://lore.kernel.org/linux-arm-kernel/1618490885-44612-1-git-send-email-liuqi115@xxxxxxxxxx/

Changes since v2:
- Address the comments from John.
- Link: https://lore.kernel.org/linux-arm-kernel/1617959157-22956-1-git-send-email-liuqi115@xxxxxxxxxx/

Changes since v1:
- Drop the internal Reviewed-by tag.
- Fix some build warnings when W=1.
- Link: https://lore.kernel.org/linux-arm-kernel/1617788943-52722-1-git-send-email-liuqi115@xxxxxxxxxx/

Qi Liu (2):
  docs: perf: Add description for HiSilicon PCIe PMU driver
  drivers/perf: hisi: Add driver for HiSilicon PCIe PMU

 Documentation/admin-guide/perf/hisi-pcie-pmu.rst |  104 +++
 MAINTAINERS                                      |    6 +
 drivers/perf/Kconfig                             |    2 +
 drivers/perf/Makefile                            |    1 +
 drivers/perf/pci/Kconfig                         |   16 +
 drivers/perf/pci/Makefile                        |    2 +
 drivers/perf/pci/hisilicon/Makefile              |    3 +
 drivers/perf/pci/hisilicon/hisi_pcie_pmu.c       | 1019 ++++++++++++++++++++++
 include/linux/cpuhotplug.h                       |    1 +
 9 files changed, 1154 insertions(+)
 create mode 100644 Documentation/admin-guide/perf/hisi-pcie-pmu.rst
 create mode 100644 drivers/perf/pci/Kconfig
 create mode 100644 drivers/perf/pci/Makefile
 create mode 100644 drivers/perf/pci/hisilicon/Makefile
 create mode 100644 drivers/perf/pci/hisilicon/hisi_pcie_pmu.c

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2.7.4