From owner-svn-src-head@FreeBSD.ORG Mon Jan 26 10:31:19 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 1579FB4; Mon, 26 Jan 2015 10:31:19 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id EABFAD70; Mon, 26 Jan 2015 10:31:18 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t0QAVIWT064604; Mon, 26 Jan 2015 10:31:18 GMT (envelope-from br@FreeBSD.org) Received: (from br@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t0QAVI33064601; Mon, 26 Jan 2015 10:31:18 GMT (envelope-from br@FreeBSD.org) Message-Id: <201501261031.t0QAVI33064601@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: br set sender to br@FreeBSD.org using -f From: Ruslan Bukin Date: Mon, 26 Jan 2015 10:31:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r277745 - in head/sys: arm/arm boot/fdt/dts/arm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jan 2015 10:31:19 -0000 Author: br Date: Mon Jan 26 10:31:17 2015 New Revision: 277745 URL: https://svnweb.freebsd.org/changeset/base/277745 Log: Add a generic way for hooking PMC interrupt. Added: head/sys/arm/arm/pmu.c (contents, props changed) Modified: head/sys/boot/fdt/dts/arm/am335x.dtsi Added: head/sys/arm/arm/pmu.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm/arm/pmu.c Mon Jan 26 10:31:17 2015 (r277745) @@ -0,0 +1,157 @@ +/*- + * Copyright (c) 2015 Ruslan Bukin + * All rights reserved. + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) + * ("CTSRD"), as part of the DARPA CRASH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Performance Monitoring Unit + */ + +#include +__FBSDID("$FreeBSD$"); + +#include "opt_hwpmc_hooks.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +struct pmu_softc { + struct resource *res[1]; + device_t dev; + void *ih; +}; + +static struct ofw_compat_data compat_data[] = { + {"arm,cortex-a17-pmu", 1}, + {"arm,cortex-a15-pmu", 1}, + {"arm,cortex-a12-pmu", 1}, + {"arm,cortex-a9-pmu", 1}, + {"arm,cortex-a8-pmu", 1}, + {"arm,cortex-a7-pmu", 1}, + {"arm,cortex-a5-pmu", 1}, + {"arm,arm11mpcore-pmu", 1}, + {"arm,arm1176-pmu", 1}, + {"arm,arm1136-pmu", 1}, + {"qcom,krait-pmu", 1}, + {NULL, 0} +}; + +static struct resource_spec pmu_spec[] = { + { SYS_RES_IRQ, 0, RF_ACTIVE }, + { -1, 0 } +}; + +static int +pmu_intr(void *arg) +{ + struct trapframe *tf; + + tf = arg; + +#ifdef HWPMC_HOOKS + if (pmc_intr) + (*pmc_intr)(PCPU_GET(cpuid), tf); +#endif + + return (FILTER_HANDLED); +} + +static int +pmu_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (ofw_bus_search_compatible(dev, compat_data)->ocd_data != 0) { + device_set_desc(dev, "Performance Monitoring Unit"); + return (BUS_PROBE_DEFAULT); + } + + return (ENXIO); +} + +static int +pmu_attach(device_t dev) +{ + struct pmu_softc *sc; + int err; + + sc = device_get_softc(dev); + sc->dev = dev; + + if (bus_alloc_resources(dev, pmu_spec, sc->res)) { + device_printf(dev, "could not allocate resources\n"); + return (ENXIO); + } + + /* Setup interrupt handler */ + err = bus_setup_intr(dev, sc->res[0], INTR_MPSAFE | INTR_TYPE_MISC, + pmu_intr, NULL, NULL, &sc->ih); + if (err) { + device_printf(dev, "Unable to setup interrupt handler.\n"); + return (ENXIO); + } + + return (0); +} + +static device_method_t pmu_methods[] = { + DEVMETHOD(device_probe, pmu_probe), + DEVMETHOD(device_attach, pmu_attach), + { 0, 0 } +}; + +static driver_t pmu_driver = { + "pmu", + pmu_methods, + sizeof(struct pmu_softc), +}; + +static devclass_t pmu_devclass; + +DRIVER_MODULE(pmu, simplebus, pmu_driver, pmu_devclass, 0, 0); Modified: head/sys/boot/fdt/dts/arm/am335x.dtsi ============================================================================== --- head/sys/boot/fdt/dts/arm/am335x.dtsi Mon Jan 26 10:25:26 2015 (r277744) +++ head/sys/boot/fdt/dts/arm/am335x.dtsi Mon Jan 26 10:31:17 2015 (r277745) @@ -47,6 +47,11 @@ reg = < 0x48200000 0x1000 >; }; + pmu { + compatible = "arm,cortex-a8-pmu"; + interrupts = <3>; + }; + scm@44e10000 { compatible = "ti,scm"; reg = < 0x44e10000 0x2000 >;