The DDRPERFM is the DDR Performance Monitor embedded in STM32MP1 SOC. This series adds support for the DDRPERFM via a new stm32-ddr-pmu driver, registered into the perf framework. This driver is inspired from arch/arm/mm/cache-l2x0-pmu.c --- Changes from v1: - add 'resets' description (bindings) and using (driver). Thanks Rob. - rebase on 5.2-rc1 (that includes the ddrperfm clock control patch). Changes from v2: - rebase on 5.3-rc6 that has to be completed with 'perf tools: fix alignment trap in perf stat': mandatory. 'Documentation: add link to stm32mp157 docs': referenced from this series. - take into account all remarks from Mark Rutland: thanks for your time! https://lkml.org/lkml/2019/6/26/388 - fix for event type filtering in stm32_ddr_pmu_event_init() Gerald Baeza (5): Documentation: perf: stm32: ddrperfm support dt-bindings: perf: stm32: ddrperfm support perf: stm32: ddrperfm driver creation ARM: configs: enable STM32_DDR_PMU ARM: dts: stm32: add ddrperfm on stm32mp157c .../devicetree/bindings/perf/stm32-ddr-pmu.txt | 16 + Documentation/perf/stm32-ddr-pmu.txt | 37 ++ arch/arm/boot/dts/stm32mp157c.dtsi | 8 + arch/arm/configs/multi_v7_defconfig | 1 + drivers/perf/Kconfig | 6 + drivers/perf/Makefile | 1 + drivers/perf/stm32_ddr_pmu.c | 426 +++++++++++++++++++++ 7 files changed, 495 insertions(+) create mode 100644 Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt create mode 100644 Documentation/perf/stm32-ddr-pmu.txt create mode 100644 drivers/perf/stm32_ddr_pmu.c -- 2.7.4
