sys/arch/arm/include/sysarch.h

   1 /*      $NetBSD: sysarch.h,v 1.12 2015/03/09 11:03:19 joerg Exp $       */
   2
   3 /*
   4  * Copyright (c) 1996-1997 Mark Brinicombe.
   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 Mark Brinicombe.
  18  * 4. The name of the company nor the name of the author may be used to
  19  *    endorse or promote products derived from this software without specific
  20  *    prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef _ARM_SYSARCH_H_
  36 #define _ARM_SYSARCH_H_
  37
  38 #include <sys/cdefs.h>
  39
  40 /*
  41  * Pickup definition of size_t and uintptr_t
  42  */
  43 #include <machine/ansi.h>
  44 #include <sys/stdint.h>
  45 #ifndef _KERNEL
  46 #include <stdbool.h>
  47 #endif
  48
  49 #ifdef  _BSD_SIZE_T_
  50 typedef _BSD_SIZE_T_ size_t;
  51 #undef  _BSD_SIZE_T_
  52 #endif
  53
  54 /*
  55  * Architecture specific syscalls (arm)
  56  */
  57
  58 #define ARM_SYNC_ICACHE         0
  59 #define ARM_DRAIN_WRITEBUF      1
  60 #define ARM_VFP_FPSCR           2
  61 #define ARM_FPU_USED            3
  62
  63 struct arm_sync_icache_args {
  64         uintptr_t       addr;           /* Virtual start address */
  65         size_t          len;            /* Region size */
  66 };
  67
  68 struct arm_vfp_fpscr_args {
  69         uint32_t        fpscr_clear;    /* bits to clear */
  70         uint32_t        fpscr_set;      /* bits to set */
  71 };
  72
  73 struct arm_unaligned_faults_args {
  74         bool            enabled;        /* unaligned faults are enabled */
  75 };
  76
  77 #ifndef _KERNEL
  78 __BEGIN_DECLS
  79 int     arm_sync_icache(uintptr_t, size_t);
  80 int     arm_drain_writebuf(void);
  81 int     sysarch(int, void *);
  82 __END_DECLS
  83 #endif
  84
  85 #endif /* !_ARM_SYSARCH_H_ */