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-rc1.
Changes since v3:
- Fix some warnings when build under 32bits architecture.
- Address the comments from John.
- Link: https://lore.kernel.org/linux-arm-kernel/[email protected]/
Changes since v2:
- Address the comments from John.
- Link: https://lore.kernel.org/linux-arm-kernel/[email protected]/
Changes since v1:
- Drop the internal Reviewed-by tag.
- Fix some build warnings when W=1.
- Link: https://lore.kernel.org/linux-arm-kernel/[email protected]/
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 | 1016 ++++++++++++++++++++++
include/linux/cpuhotplug.h | 1 +
9 files changed, 1151 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