* Sorry everyone, I forgot to add the version number of the patch set I just sent. These four commits are perf supporting for nds32. There are three perfomance counters in nds32, and each of them can counts different events. You can use 'perf list' to show the available events that can be used. Changes in V2: 1. Change the definition 'PFM_CTL_xxx' to array form. 2. Simplify the PMU driver. 3. Stop all counters when handling irq caused by performance counters overflow. 4. Rename the compatible string in devicetree. Changes in V3: Fix the typo in Documentation/devicetree/ bindings/nds32/pmu.txt. Nickhu (4): nds32: Fix bug in bitfield.h nds32: Perf porting nds32: Add perf call-graph support. nds32: Add document for NDS32 PMU. .../devicetree/bindings/nds32/pmu.txt | 17 + arch/nds32/Kconfig | 1 + arch/nds32/boot/dts/ae3xx.dts | 5 + arch/nds32/include/asm/Kbuild | 1 + arch/nds32/include/asm/bitfield.h | 4 +- arch/nds32/include/asm/perf_event.h | 16 + arch/nds32/include/asm/pmu.h | 386 +++++ arch/nds32/include/asm/stacktrace.h | 39 + arch/nds32/kernel/Makefile | 3 +- arch/nds32/kernel/perf_event_cpu.c | 1522 +++++++++++++++++ arch/nds32/mm/fault.c | 13 +- tools/include/asm/barrier.h | 2 + tools/perf/arch/nds32/Build | 1 + tools/perf/arch/nds32/util/Build | 1 + tools/perf/arch/nds32/util/header.c | 29 + tools/perf/pmu-events/arch/nds32/mapfile.csv | 15 + .../pmu-events/arch/nds32/n13/atcpmu.json | 290 ++++ 17 files changed, 2337 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/nds32/pmu.txt create mode 100644 arch/nds32/include/asm/perf_event.h create mode 100644 arch/nds32/include/asm/pmu.h create mode 100644 arch/nds32/include/asm/stacktrace.h create mode 100644 arch/nds32/kernel/perf_event_cpu.c create mode 100644 tools/perf/arch/nds32/Build create mode 100644 tools/perf/arch/nds32/util/Build create mode 100644 tools/perf/arch/nds32/util/header.c create mode 100644 tools/perf/pmu-events/arch/nds32/mapfile.csv create mode 100644 tools/perf/pmu-events/arch/nds32/n13/atcpmu.json -- 2.17.0
