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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Arm Ltd
* Copyright (c) 2022 The FreeBSD Foundation
*
* Portions of this software were developed by Andrew Turner under sponsorship
* from the FreeBSD Foundation.
*
* 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/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/openfirm.h>
#include <arm64/spe/arm_spe_dev.h>
static device_probe_t arm_spe_fdt_probe;
static struct ofw_compat_data compat_data[] = {
{"arm,statistical-profiling-extension-v1", true},
{NULL, false},
};
static device_method_t arm_spe_fdt_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, arm_spe_fdt_probe),
DEVMETHOD_END,
};
DEFINE_CLASS_1(spe, arm_spe_fdt_driver, arm_spe_fdt_methods,
sizeof(struct arm_spe_softc), arm_spe_driver);
DRIVER_MODULE(spe, simplebus, arm_spe_fdt_driver, 0, 0);
static int
arm_spe_fdt_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
return (ENXIO);
device_set_desc(dev, "ARM Statistical Profiling Extension");
return (BUS_PROBE_DEFAULT);
}
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