From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9012DC433F5 for ; Sat, 13 Nov 2021 11:55:58 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4F72160F6B for ; Sat, 13 Nov 2021 11:55:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4F72160F6B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=7ieINIMzehdSjaIDuoNPLReQ11CcbMsfqpOvWRbpHH8=; b=3SmEI1VnnS9sk5 Y1KTgqxKTiEJV13xV5ut/GGnLsKst1le7sIWBbet5uR8uRTF1JNTIrJS9nbwMIV+MxsagEhCtVfMT UJsiVp6Zfu8Cu2wqY94DlUwCkGoL6fnsLHhgrqF39jEYf6F+RIfkL4mH1KI5Q7GQRuq7o6mkp4rSm +z0o9AdVp08LXhbEROoqKMYQQJCoj6ruL3LnxND6v3rlPE+iMUlWUqOQ4DapbvGM0B22rabFUUfLc NgtPVfSmZVsqxrr7QHOsMm6b8VQ9Dg/211dzoNOGx0Z0GxU7/CiYZfB7AwCXt4IUrk8ksEGlL+6hT Os9irksaf3pn9GEX/b1g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mlrcS-00CZJm-Gm; Sat, 13 Nov 2021 11:54:52 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mlrcD-00CZDW-Mb for linux-arm-kernel@lists.infradead.org; Sat, 13 Nov 2021 11:54:39 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C454A60F6B; Sat, 13 Nov 2021 11:54:36 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mlrcA-005BG2-KW; Sat, 13 Nov 2021 11:54:34 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mark Rutland , Will Deacon , Hector Martin , Sven Peter , Alyssa Rosenzweig , Rob Herring , Thomas Gleixner Subject: [PATCH 0/8] drivers/perf: CPU PMU driver for Apple M1 Date: Sat, 13 Nov 2021 11:54:21 +0000 Message-Id: <20211113115429.4027571-1-maz@kernel.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, will@kernel.org, marcan@marcan.st, sven@svenpeter.dev, alyssa@rosenzweig.io, robh+dt@kernel.org, tglx@linutronix.de X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211113_035437_774508_C8EA0C4B X-CRM114-Status: GOOD ( 15.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The M1 SoC embeds a per-CPU PMU that has a very different programming interface compared to the architected PMUv3 that is normally present on standard implementations. This small series adds a driver for this HW by leveraging the arm_pmu infrastructure, resulting in a rather simple driver. Of course, we know next to nothing about the actual events this PMU counts, aside from CPU cycles and instructions. Everything else is undocumented. My hope is that this driver will help people to explore the event space and propose possible interpretations for these events using reproducible test cases. Marc Zyngier (8): dt-bindings: arm-pmu: Document Apple PMU compatible strings dt-bindings: apple,aic: Add CPU PMU per-cpu pseudo-interrupts irqchip/apple-aic: Add cpumasks for E and P cores irqchip/apple-aic: Wire PMU interrupts irqchip/apple-aic: Move PMU-specific registers to their own include file arm64: apple: t8301: Add PMU nodes drivers/perf: arm_pmu: Handle 47 bit counters drivers/perf: Add Apple icestorm/firestorm CPU PMU driver .../devicetree/bindings/arm/pmu.yaml | 2 + .../interrupt-controller/apple,aic.yaml | 2 + arch/arm64/boot/dts/apple/t8103.dtsi | 12 + arch/arm64/include/asm/apple_m1_pmu.h | 64 ++ drivers/irqchip/irq-apple-aic.c | 59 +- drivers/perf/Kconfig | 7 + drivers/perf/Makefile | 1 + drivers/perf/apple_m1_cpu_pmu.c | 632 ++++++++++++++++++ drivers/perf/arm_pmu.c | 2 + .../interrupt-controller/apple-aic.h | 2 + include/linux/perf/arm_pmu.h | 2 + 11 files changed, 763 insertions(+), 22 deletions(-) create mode 100644 arch/arm64/include/asm/apple_m1_pmu.h create mode 100644 drivers/perf/apple_m1_cpu_pmu.c -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel