2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 Peter Grehan
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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31 #ifndef _MACHINE_PLATFORMVAR_H_
32 #define _MACHINE_PLATFORMVAR_H_
35 * A PowerPC platform implementation is declared with a kernel object and
36 * an associated method table, similar to a device driver.
40 * static platform_method_t chrp_methods[] = {
41 * PLATFORMMETHOD(platform_probe, chrp_probe),
42 * PLATFORMMETHOD(platform_mem_regions, ofw_mem_regions),
44 * PLATFORMMETHOD(platform_smp_first_cpu, chrp_smp_first_cpu),
48 * static platform_def_t chrp_platform = {
51 * sizeof(chrp_platform_softc), // or 0 if no softc
54 * PLATFORM_DEF(chrp_platform);
59 struct platform_kobj {
61 * A platform instance is a kernel object
66 * Utility elements that an instance may use
68 struct mtx platform_mtx; /* available for instance use */
69 void *platform_iptr; /* instance data pointer */
72 * Opaque data that can be overlaid with an instance-private
73 * structure. Platform code can test that this is large enough at
74 * compile time with a sizeof() test againt it's softc. There
75 * is also a run-time test when the platform kernel object is
78 #define PLATFORM_OPAQUESZ 64
79 u_int platform_opaque[PLATFORM_OPAQUESZ];
82 typedef struct platform_kobj *platform_t;
83 typedef struct kobj_class platform_def_t;
84 #define platform_method_t kobj_method_t
86 #define PLATFORMMETHOD KOBJMETHOD
87 #define PLATFORMMETHOD_END KOBJMETHOD_END
89 #define PLATFORM_DEF(name) DATA_SET(platform_set, name)
91 #endif /* _MACHINE_PLATFORMVAR_H_ */