Hello, This is RFCv2 of the patches originally posted here:
http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/476450.html Changes since RFCv1 include: * Use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL * Remove unused CPP macro * Added tags for the first couple of patches (which are now queued in arm64) * Added a brief overview of SPE to the commit log for the perf driver All feedback welcome, Will --->8 Will Deacon (10): arm64: cpufeature: allow for version discrepancy in PMU implementations arm64: cpufeature: Don't enforce system-wide SPE capability arm64: KVM: Save/restore the host SPE state when entering/leaving a VM arm64: head.S: Enable EL1 (host) access to SPE when entered at EL2 genirq: export irq_get_percpu_devid_partition to modules perf/core: Export AUX buffer helpers to modules perf: Directly pass PERF_AUX_* flags to perf_aux_output_end perf/core: Add PERF_AUX_FLAG_COLLISION to report colliding samples drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension dt-bindings: Document devicetree binding for ARM SPE Documentation/devicetree/bindings/arm/spe-pmu.txt | 20 + arch/arm64/include/asm/kvm_arm.h | 3 + arch/arm64/include/asm/kvm_host.h | 7 +- arch/arm64/include/asm/sysreg.h | 1 + arch/arm64/kernel/cpufeature.c | 9 +- arch/arm64/kernel/head.S | 14 +- arch/arm64/kvm/debug.c | 6 + arch/arm64/kvm/hyp/debug-sr.c | 66 +- arch/arm64/kvm/hyp/switch.c | 13 +- arch/x86/events/intel/bts.c | 11 +- arch/x86/events/intel/pt.c | 11 +- drivers/hwtracing/coresight/coresight-etm-perf.c | 5 +- drivers/perf/Kconfig | 8 + drivers/perf/Makefile | 1 + drivers/perf/arm_spe_pmu.c | 1244 +++++++++++++++++++++ include/linux/perf_event.h | 4 +- include/uapi/linux/perf_event.h | 1 + kernel/events/ring_buffer.c | 16 +- kernel/irq/irqdesc.c | 1 + 19 files changed, 1413 insertions(+), 28 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/spe-pmu.txt create mode 100644 drivers/perf/arm_spe_pmu.c -- 2.1.4
