2 * Copyright (c) 2005 Peter Grehan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _MACHINE_PLATFORMVAR_H_
30 #define _MACHINE_PLATFORMVAR_H_
33 * A PowerPC platform implementation is declared with a kernel object and
34 * an associated method table, similar to a device driver.
38 * static platform_method_t chrp_methods[] = {
39 * PLATFORMMETHOD(platform_probe, chrp_probe),
40 * PLATFORMMETHOD(platform_mem_regions, ofw_mem_regions),
42 * PLATFORMMETHOD(platform_smp_first_cpu, chrp_smp_first_cpu),
46 * static platform_def_t chrp_platform = {
49 * sizeof(chrp_platform_softc), // or 0 if no softc
52 * PLATFORM_DEF(chrp_platform);
57 struct platform_kobj {
59 * A platform instance is a kernel object
64 * Utility elements that an instance may use
66 struct mtx platform_mtx; /* available for instance use */
67 void *platform_iptr; /* instance data pointer */
70 * Opaque data that can be overlaid with an instance-private
71 * structure. Platform code can test that this is large enough at
72 * compile time with a sizeof() test againt it's softc. There
73 * is also a run-time test when the platform kernel object is
76 #define PLATFORM_OPAQUESZ 64
77 u_int platform_opaque[PLATFORM_OPAQUESZ];
80 typedef struct platform_kobj *platform_t;
81 typedef struct kobj_class platform_def_t;
82 #define platform_method_t kobj_method_t
84 #define PLATFORMMETHOD KOBJMETHOD
85 #define PLATFORMMETHOD_END KOBJMETHOD_END
87 #define PLATFORM_DEF(name) DATA_SET(platform_set, name)
89 #endif /* _MACHINE_PLATFORMVAR_H_ */