freebsd-dev/sys/x86/acpica/OsdEnvironment.c
Conrad Meyer e2e050c8ef Extract eventfilter declarations to sys/_eventfilter.h
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.

EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).

As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions.  The remainder of the patch addresses
adding appropriate includes to fix those files.

LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).

No functional change (intended).  Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed.  __FreeBSD_version has been bumped.
2019-05-20 00:38:23 +00:00

105 lines
2.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2000,2001 Michael Smith
* Copyright (c) 2000 BSDi
* 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 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/bus.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/aclocal.h>
#include <contrib/dev/acpica/include/actables.h>
static u_long acpi_root_phys;
SYSCTL_ULONG(_machdep, OID_AUTO, acpi_root, CTLFLAG_RD, &acpi_root_phys, 0,
"The physical address of the RSDP");
ACPI_STATUS
AcpiOsInitialize(void)
{
return (AE_OK);
}
ACPI_STATUS
AcpiOsTerminate(void)
{
return (AE_OK);
}
static u_long
acpi_get_root_from_loader(void)
{
long acpi_root;
if (TUNABLE_ULONG_FETCH("acpi.rsdp", &acpi_root))
return (acpi_root);
/*
* The hints mechanism is unreliable (it fails if anybody ever
* compiled in hints to the kernel). It has been replaced
* by the tunable method, but is used here as a fallback to
* retain maximum compatibility between old loaders and new
* kernels. It can be removed after 11.0R.
*/
if (resource_long_value("acpi", 0, "rsdp", &acpi_root) == 0)
return (acpi_root);
return (0);
}
static u_long
acpi_get_root_from_memory(void)
{
ACPI_PHYSICAL_ADDRESS acpi_root;
if (ACPI_SUCCESS(AcpiFindRootPointer(&acpi_root)))
return (acpi_root);
return (0);
}
ACPI_PHYSICAL_ADDRESS
AcpiOsGetRootPointer(void)
{
if (acpi_root_phys == 0) {
acpi_root_phys = acpi_get_root_from_loader();
if (acpi_root_phys == 0)
acpi_root_phys = acpi_get_root_from_memory();
}
return (acpi_root_phys);
}