79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/* $NetBSD: acpi_pcd.c,v 1.2 2021/01/29 15:49:55 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
|
|
* All rights reserved.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* This is a driver for the Processor Container Device. The device acts
|
|
* like a bus in the node namespace. Child nodes can be either processor
|
|
* devices or other processor containers.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: acpi_pcd.c,v 1.2 2021/01/29 15:49:55 thorpej Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/cpu.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <dev/acpi/acpireg.h>
|
|
#include <dev/acpi/acpivar.h>
|
|
|
|
static const struct device_compatible_entry compat_data[] = {
|
|
{ .compat = "ACPI0010" }, /* Processor Container Device */
|
|
DEVICE_COMPAT_EOL
|
|
};
|
|
|
|
static int acpi_pcd_match(device_t, cfdata_t, void *);
|
|
static void acpi_pcd_attach(device_t, device_t, void *);
|
|
|
|
CFATTACH_DECL_NEW(acpipcd, 0, acpi_pcd_match, acpi_pcd_attach, NULL, NULL);
|
|
|
|
static int
|
|
acpi_pcd_match(device_t parent, cfdata_t cf, void *aux)
|
|
{
|
|
struct acpi_attach_args *aa = aux;
|
|
|
|
return acpi_compatible_match(aa, compat_data);
|
|
}
|
|
|
|
static void
|
|
acpi_pcd_attach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct acpi_attach_args * const aa = aux;
|
|
|
|
aprint_naive("\n");
|
|
aprint_normal(": Processor Container Device\n");
|
|
|
|
/*
|
|
* Initialize the container device. ACPICA should have done this
|
|
* for us, but may have done so before a node that this one depends
|
|
* on had been initialized.
|
|
*/
|
|
AcpiEvaluateObject(aa->aa_node->ad_handle, "_INI", NULL, NULL);
|
|
}
|