svn commit: r362077 - in head/sys: arm64/coresight conf
Ruslan Bukin
br at FreeBSD.org
Thu Jun 11 21:52:06 UTC 2020
Author: br
Date: Thu Jun 11 21:52:06 2020
New Revision: 362077
URL: https://svnweb.freebsd.org/changeset/base/362077
Log:
Shorten the filename of the coresight replicator driver.
Sponsored by: DARPA, AFRL
Added:
head/sys/arm64/coresight/coresight_replicator.c
- copied unchanged from r362076, head/sys/arm64/coresight/coresight_dynamic_replicator.c
Deleted:
head/sys/arm64/coresight/coresight_dynamic_replicator.c
Modified:
head/sys/conf/files.arm64
Copied: head/sys/arm64/coresight/coresight_replicator.c (from r362076, head/sys/arm64/coresight/coresight_dynamic_replicator.c)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/arm64/coresight/coresight_replicator.c Thu Jun 11 21:52:06 2020 (r362077, copy of r362076, head/sys/arm64/coresight/coresight_dynamic_replicator.c)
@@ -0,0 +1,172 @@
+/*-
+ * Copyright (c) 2018 Ruslan Bukin <br at bsdpad.com>
+ * All rights reserved.
+ *
+ * This software was developed by BAE Systems, the University of Cambridge
+ * Computer Laboratory, and Memorial University under DARPA/AFRL contract
+ * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
+ * (TC) research program.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/rman.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <machine/bus.h>
+
+#include <arm64/coresight/coresight.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include "coresight_if.h"
+
+#define REPLICATOR_IDFILTER0 0x00
+#define REPLICATOR_IDFILTER1 0x04
+
+static struct ofw_compat_data compat_data[] = {
+ { "arm,coresight-dynamic-replicator", 1 },
+ { NULL, 0 }
+};
+
+struct replicator_softc {
+ struct resource *res;
+ struct coresight_platform_data *pdata;
+};
+
+static struct resource_spec replicator_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { -1, 0 }
+};
+
+static int
+replicator_init(device_t dev)
+{
+ struct replicator_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ /* Unlock Coresight */
+ bus_write_4(sc->res, CORESIGHT_LAR, CORESIGHT_UNLOCK);
+
+ return (0);
+}
+
+static int
+replicator_enable(device_t dev, struct endpoint *endp,
+ struct coresight_event *event)
+{
+ struct replicator_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ /* Enable the port. Keep the other port disabled */
+ if (endp->reg == 0) {
+ bus_write_4(sc->res, REPLICATOR_IDFILTER0, 0x00);
+ bus_write_4(sc->res, REPLICATOR_IDFILTER1, 0xff);
+ } else {
+ bus_write_4(sc->res, REPLICATOR_IDFILTER0, 0xff);
+ bus_write_4(sc->res, REPLICATOR_IDFILTER1, 0x00);
+ }
+
+ return (0);
+}
+
+static void
+replicator_disable(device_t dev, struct endpoint *endp,
+ struct coresight_event *event)
+{
+ struct replicator_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ bus_write_4(sc->res, REPLICATOR_IDFILTER0, 0xff);
+ bus_write_4(sc->res, REPLICATOR_IDFILTER1, 0xff);
+}
+
+static int
+replicator_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "Coresight Dynamic Replicator");
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+replicator_attach(device_t dev)
+{
+ struct replicator_softc *sc;
+ struct coresight_desc desc;
+
+ sc = device_get_softc(dev);
+
+ if (bus_alloc_resources(dev, replicator_spec, &sc->res) != 0) {
+ device_printf(dev, "cannot allocate resources for device\n");
+ return (ENXIO);
+ }
+
+ sc->pdata = coresight_get_platform_data(dev);
+ desc.pdata = sc->pdata;
+ desc.dev = dev;
+ desc.dev_type = CORESIGHT_DYNAMIC_REPLICATOR;
+ coresight_register(&desc);
+
+ return (0);
+}
+
+static device_method_t replicator_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, replicator_probe),
+ DEVMETHOD(device_attach, replicator_attach),
+
+ /* Coresight interface */
+ DEVMETHOD(coresight_init, replicator_init),
+ DEVMETHOD(coresight_enable, replicator_enable),
+ DEVMETHOD(coresight_disable, replicator_disable),
+ DEVMETHOD_END
+};
+
+static driver_t replicator_driver = {
+ "replicator",
+ replicator_methods,
+ sizeof(struct replicator_softc),
+};
+
+static devclass_t replicator_devclass;
+
+DRIVER_MODULE(replicator, simplebus, replicator_driver, replicator_devclass,
+ 0, 0);
+MODULE_VERSION(replicator, 1);
Modified: head/sys/conf/files.arm64
==============================================================================
--- head/sys/conf/files.arm64 Thu Jun 11 20:35:28 2020 (r362076)
+++ head/sys/conf/files.arm64 Thu Jun 11 21:52:06 2020 (r362077)
@@ -189,7 +189,7 @@ arm64/coresight/coresight.c standard
arm64/coresight/coresight_if.m standard
arm64/coresight/coresight_cmd.c standard
arm64/coresight/coresight_cpu_debug.c standard
-arm64/coresight/coresight_dynamic_replicator.c standard
+arm64/coresight/coresight_replicator.c standard
arm64/coresight/coresight_etm4x.c standard
arm64/coresight/coresight_etm4x_acpi.c optional acpi
arm64/coresight/coresight_etm4x_fdt.c optional fdt
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