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      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  */
     48 typedef 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 
     67 struct 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 ... */
     76 struct 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 
     85 struct 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_ */
     96