1/*	$NetBSD: cpuio.h,v 1.10 2022/07/10 09:59:22 riastradh Exp $	*/
 2
 3/*-
 4 * Copyright (c) 2007, 2009, 2012 The NetBSD Foundation, Inc.
 5 * All rights reserved.
 6 *
 7 * This code is derived from software contributed to The NetBSD Foundation
 8 * by Andrew Doran.
 9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#if !defined(_SYS_CPUIO_H_)
33#define	_SYS_CPUIO_H_
34
35#include <sys/types.h>
36#include <sys/time.h>
37#include <sys/ioccom.h>
38
39#ifndef _KERNEL
40#include <limits.h>
41#include <stdbool.h>
42#endif
43
44/*
45 * This is not a great place to describe CPU properties, those
46 * are better returned via autoconf.
47 */
48typedef struct cpustate {
49	u_int		cs_id;		/* matching ci_cpuid */
50	uint8_t		cs_online;	/* running unbound LWPs */
51	uint8_t		cs_intr;	/* fielding interrupts */
52	uint8_t		cs_unused[2];	/* reserved */
53	int32_t		cs_lastmod;	/* time of last state change */
54	char		cs_name[16];	/* reserved */
55	int32_t		cs_lastmodhi;	/* time of last state change */
56	uint32_t	cs_intrcnt;	/* count of interrupt handlers + 1 */
57	uint32_t	cs_hwid;	/* hardware id */
58	uint32_t	cs_reserved;	/* reserved */
59} cpustate_t;
60
61#define	IOC_CPU_SETSTATE	_IOW('c', 0, cpustate_t)
62#define	IOC_CPU_GETSTATE	_IOWR('c', 1, cpustate_t)
63#define	IOC_CPU_GETCOUNT	_IOR('c', 2, int)
64#define	IOC_CPU_MAPID		_IOWR('c', 3, int)
65/* 4 and 5 reserved for compat nb6 x86 amd ucode loader */
66
67struct cpu_ucode_version {
68	int loader_version;	/* IN: md version number */
69	void *data;		/* OUT: CPU ID data */
70};
71
72#define IOC_CPU_UCODE_GET_VERSION	_IOWR('c', 6, struct cpu_ucode_version)
73
74#ifdef __i386__
75/* In order to read the info from an amd64 kernel we need ... */
76struct cpu_ucode_version_64 {
77	int loader_version;	/* IN: md version number */
78	int pad1;
79	void *data;		/* OUT: CPU ID data */
80	int must_be_zero;
81};
82#define IOC_CPU_UCODE_GET_VERSION_64	_IOWR('c', 6, struct cpu_ucode_version_64)
83#endif
84
85struct cpu_ucode {
86	int loader_version;	/* md version number */
87	int cpu_nr;		/* CPU index or special value below */
88#define CPU_UCODE_ALL_CPUS (-1)
89#define CPU_UCODE_CURRENT_CPU (-2)
90	char fwname[PATH_MAX];
91};
92
93#define IOC_CPU_UCODE_APPLY		_IOW('c', 7, struct cpu_ucode)
94
95#endif /* !_SYS_CPUIO_H_ */