From patchwork Thu Apr 6 16:18:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 9667865 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B2A28602B8 for ; Thu, 6 Apr 2017 16:19:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E27F8281D2 for ; Thu, 6 Apr 2017 16:19:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D708E285A2; Thu, 6 Apr 2017 16:19:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 81C74281D2 for ; Thu, 6 Apr 2017 16:19:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=DJ1uDTxOG90Z+7fm0qs+7TlGPjELiqMWkzJ79VVS9PM=; b=UjOYZ6P3JjvYq1X+msUWk8fkH+ rh+sK6aQIb4qTNLpqm4oG+e8++arTiY4psqCBQUI1V5M9JRsHiGN39LzzB58thIEMzv5VCtQhzs9r OC3AXfNNfzlObVBIABuleK4y4nLKZp+kAr4H5ick3fLczZ+ZCr3ThNdkW2q/IxSgswhNmVIF6Gh3/ ef8jz9FzpGXkWm6GiI6iLMwVxGnReBuSjYOSaM0lHHfVmwHlK6c3kQwgt86+VX6Mno6oDkV7BHwA+ u8rd//HNH9rc/SNrhtf3RZAG22NyXWlnyQa2/IRzfX+DinFaL3dNgmVsxn3/x1NIfWsmXiACRFm2n X9uVcXkA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cwA8L-0002cA-Bv; Thu, 06 Apr 2017 16:19:41 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cwA7Q-00015P-Lq for linux-arm-kernel@lists.infradead.org; Thu, 06 Apr 2017 16:19:14 +0000 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 145C8168F; Thu, 6 Apr 2017 09:18:03 -0700 (PDT) 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 DC1853F5A1; Thu, 6 Apr 2017 09:18:02 -0700 (PDT) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 20A601AE3519; Thu, 6 Apr 2017 17:18:21 +0100 (BST) From: Will Deacon To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 6/6] dt-bindings: Document devicetree binding for ARM SPE Date: Thu, 6 Apr 2017 17:18:16 +0100 Message-Id: <1491495496-1524-7-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1491495496-1524-1-git-send-email-will.deacon@arm.com> References: <1491495496-1524-1-git-send-email-will.deacon@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170406_091845_778762_C3A5716A X-CRM114-Status: GOOD ( 11.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, robh@kernel.org, kim.phillips@arm.com, mathieu.poirier@linaro.org, pawel.moll@arm.com, suzuki.poulose@arm.com, marc.zyngier@arm.com, Will Deacon , linux-kernel@vger.kernel.org, alexander.shishkin@linux.intel.com, peterz@infradead.org, mingo@redhat.com, tglx@linutronix.de, alex.bennee@linaro.org, christoffer.dall@linaro.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This patch documents the devicetree binding in use for ARM SPE. Cc: Mark Rutland Cc: Rob Herring Signed-off-by: Will Deacon --- Documentation/devicetree/bindings/arm/spe-pmu.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/spe-pmu.txt diff --git a/Documentation/devicetree/bindings/arm/spe-pmu.txt b/Documentation/devicetree/bindings/arm/spe-pmu.txt new file mode 100644 index 000000000000..93372f2a7df9 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/spe-pmu.txt @@ -0,0 +1,20 @@ +* ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU) + +ARMv8.2 introduces the optional Statistical Profiling Extension for collecting +performance sample data using an in-memory trace buffer. + +** SPE Required properties: + +- compatible : should be one of: + "arm,statistical-profiling-extension-v1" + +- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where + SPE is only supported on a subset of the CPUs, please consult + the arm,gic-v3 binding for details on describing a PPI partition. + +** Example: + +spe-pmu { + compatible = "arm,statistical-profiling-extension-v1"; + interrupts = ; +};