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/*-
* Copyright (c) 2005 Peter Grehan
* 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.
*
* $FreeBSD: release/9.1.0/sys/powerpc/include/platformvar.h 192067 2009-05-14 00:34:26Z nwhitehorn $
*/
#ifndef _MACHINE_PLATFORMVAR_H_
#define _MACHINE_PLATFORMVAR_H_
/*
* A PowerPC platform implementation is declared with a kernel object and
* an associated method table, similar to a device driver.
*
* e.g.
*
* static platform_method_t chrp_methods[] = {
* PLATFORMMETHOD(platform_probe, chrp_probe),
* PLATFORMMETHOD(platform_mem_regions, ofw_mem_regions),
* ...
* PLATFORMMETHOD(platform_smp_first_cpu, chrp_smp_first_cpu),
* { 0, 0 }
* };
*
* static platform_def_t chrp_platform = {
* "chrp",
* chrp_methods,
* sizeof(chrp_platform_softc), // or 0 if no softc
* };
*
* PLATFORM_DEF(chrp_platform);
*/
#include <sys/kobj.h>
struct platform_kobj {
/*
* A platform instance is a kernel object
*/
KOBJ_FIELDS;
/*
* Utility elements that an instance may use
*/
struct mtx platform_mtx; /* available for instance use */
void *platform_iptr; /* instance data pointer */
/*
* Opaque data that can be overlaid with an instance-private
* structure. Platform code can test that this is large enough at
* compile time with a sizeof() test againt it's softc. There
* is also a run-time test when the platform kernel object is
* registered.
*/
#define PLATFORM_OPAQUESZ 64
u_int platform_opaque[PLATFORM_OPAQUESZ];
};
typedef struct platform_kobj *platform_t;
typedef struct kobj_class platform_def_t;
#define platform_method_t kobj_method_t
#define PLATFORMMETHOD KOBJMETHOD
#define PLATFORM_DEF(name) DATA_SET(platform_set, name)
#endif /* _MACHINE_PLATFORMVAR_H_ */