sys/arch/usermode/include/cpu.h

   1 /* $NetBSD: cpu.h,v 1.2 2009/10/21 16:06:59 snj 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 */