1 /* $NetBSD: cpu.h,v 1.1 2007/12/29 14:38:32 jmcneill 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jared D. McNeill. 18 * 4. Neither the name of The NetBSD Foundation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef _ARCH_USERMODE_INCLUDE_CPU_H 36 #define _ARCH_USERMODE_INCLUDE_CPU_H 37 38 #include <sys/device.h> 39 #include <sys/cpu_data.h> 40 41 #include <machine/intrdefs.h> 42 43 extern void cpu_signotify(struct lwp *); 44 extern void cpu_need_proftick(struct lwp *); 45 46 struct cpu_info { 47 device_t ci_dev; 48 struct cpu_info *ci_self; 49 struct cpu_info *ci_next; 50 struct cpu_data ci_data; 51 u_int ci_cpuid; 52 int ci_want_resched; 53 volatile int ci_mtx_count; 54 volatile int ci_mtx_oldspl; 55 #if notyet 56 lwp_t *ci_curlwp; 57 #endif 58 lwp_t *ci_stash; 59 }; 60 61 __inline static struct cpu_info * __attribute__((__unused__)) 62 usermode_curcpu(void) 63 { 64 extern struct cpu_info cpu_info_primary; 65 66 return &cpu_info_primary; 67 } 68 69 __inline static void 70 usermode_delay(unsigned int ms) 71 { 72 extern int usleep(useconds_t); 73 74 usleep(ms); 75 } 76 77 #define curcpu() usermode_curcpu() 78 #define cpu_number() 0 79 80 #define cpu_proc_fork(p1, p2) 81 82 #define delay(ms) usermode_delay(ms) 83 #define DELAY(ms) usermode_delay(ms) 84 85 /* XXXJDM */ 86 struct clockframe { 87 uint8_t cf_dummy; 88 }; 89 90 #define CLKF_USERMODE(frame) 0 91 #define CLKF_PC(frame) 0 92 #define CLKF_INTR(frame) 0 93 94 #define cpu_swapin(l) 95 #define cpu_swapout(l) 96 97 #endif /* !_ARCH_USERMODE_INCLUDE_CPU_H */ 98