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cpu.h revision 1.1 
      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 (at) 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