From patchwork Fri Jan 27 18:07:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 92709 Delivered-To: patch@linaro.org Received: by 10.140.20.99 with SMTP id 90csp359117qgi; Fri, 27 Jan 2017 10:08:42 -0800 (PST) X-Received: by 10.98.103.195 with SMTP id t64mr10610402pfj.106.1485540522558; Fri, 27 Jan 2017 10:08:42 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z40si5093177plh.114.2017.01.27.10.08.42; Fri, 27 Jan 2017 10:08:42 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754465AbdA0SIk (ORCPT + 25 others); Fri, 27 Jan 2017 13:08:40 -0500 Received: from foss.arm.com ([217.140.101.70]:33566 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754236AbdA0SHy (ORCPT ); Fri, 27 Jan 2017 13:07:54 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A55FF1597; Fri, 27 Jan 2017 10:07:48 -0800 (PST) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 7845F3F318; Fri, 27 Jan 2017 10:07:48 -0800 (PST) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id EF88B1AE0171; Fri, 27 Jan 2017 18:07:50 +0000 (GMT) From: Will Deacon To: linux-arm-kernel@lists.infradead.org Cc: marc.zyngier@arm.com, mark.rutland@arm.com, kim.phillips@arm.com, alex.bennee@linaro.org, christoffer.dall@linaro.org, tglx@linutronix.de, peterz@infradead.org, alexander.shishkin@linux.intel.com, robh@kernel.org, suzuki.poulose@arm.com, pawel.moll@arm.com, mathieu.poirier@linaro.org, mingo@redhat.com, linux-kernel@vger.kernel.org, Will Deacon Subject: [PATCH 00/10] Add support for the ARMv8.2 Statistical Profiling Extension Date: Fri, 27 Jan 2017 18:07:39 +0000 Message-Id: <1485540470-11469-1-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This is the third posting of the patches previously posted here: rfcv1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/476450.html rfcv2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/479387.html Changes since RFCv2 include: * Change compatible string * Renamed PMU * Simplified EL2 init code * Dropped the RFC tag * Added acks There's also now an official ARM blog giving a high-level overview of what SPE is: https://community.arm.com/processors/b/blog/posts/statistical-profiling-extension-for-armv8-a All comments 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 | 19 +- arch/arm64/kvm/debug.c | 6 + arch/arm64/kvm/hyp/debug-sr.c | 66 +- arch/arm64/kvm/hyp/switch.c | 17 +- 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 | 1245 +++++++++++++++++++++ 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, 1421 insertions(+), 30 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/spe-pmu.txt create mode 100644 drivers/perf/arm_spe_pmu.c -- 2.1.4 Acked-by: Marc Zyngier Acked-by: Mark Rutland