1 /* $NetBSD: cpu.h,v 1.3 2009/10/21 21:12:04 rmind Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _ARCH_USERMODE_INCLUDE_CPU_H 30 #define _ARCH_USERMODE_INCLUDE_CPU_H 31 32 #include <sys/device.h> 33 #include <sys/cpu_data.h> 34 35 #include <machine/intrdefs.h> 36 37 extern void cpu_signotify(struct lwp *); 38 extern void cpu_need_proftick(struct lwp *); 39 40 struct cpu_info { 41 device_t ci_dev; 42 struct cpu_info *ci_self; 43 struct cpu_info *ci_next; 44 struct cpu_data ci_data; 45 u_int ci_cpuid; 46 int ci_want_resched; 47 volatile int ci_mtx_count; 48 volatile int ci_mtx_oldspl; 49 #if notyet 50 lwp_t *ci_curlwp; 51 #endif 52 lwp_t *ci_stash; 53 }; 54 55 __inline static struct cpu_info * __attribute__((__unused__)) 56 usermode_curcpu(void) 57 { 58 extern struct cpu_info cpu_info_primary; 59 60 return &cpu_info_primary; 61 } 62 63 __inline static void 64 usermode_delay(unsigned int ms) 65 { 66 extern int usleep(useconds_t); 67 68 usleep(ms); 69 } 70 71 #define curcpu() usermode_curcpu() 72 #define cpu_number() 0 73 74 #define cpu_proc_fork(p1, p2) 75 76 #define delay(ms) usermode_delay(ms) 77 #define DELAY(ms) usermode_delay(ms) 78 79 /* XXXJDM */ 80 struct clockframe { 81 uint8_t cf_dummy; 82 }; 83 84 #define CLKF_USERMODE(frame) 0 85 #define CLKF_PC(frame) 0 86 #define CLKF_INTR(frame) 0 87 88 #endif /* !_ARCH_USERMODE_INCLUDE_CPU_H */ 89