Subversion Repositories HelenOS

Rev

Rev 28 | Rev 115 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (C) 2001-2004 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __ia32_ASM_H__
  30. #define __ia32_ASM_H__
  31.  
  32. #include <arch/types.h>
  33. #include <typedefs.h>
  34. #include <mm/page.h>
  35. #include <synch/spinlock.h>
  36.  
  37. extern __u32 interrupt_handler_size;
  38.  
  39. extern void paging_on(void);
  40. extern __address cpu_read_dba(void);
  41. extern void cpu_write_dba(__address dba);
  42.  
  43. extern __address cpu_read_cr2(void);
  44.  
  45. extern void interrupt_handlers(void);
  46.  
  47. extern __u8 inb(int port);
  48. extern __u16 inw(int port);
  49. extern __u32 inl(int port);
  50.  
  51. extern void outb(int port, __u8 b);
  52. extern void outw(int port, __u16 w);
  53. extern void outl(int port, __u32 l);
  54.  
  55. extern void enable_l_apic_in_msr(void);
  56.  
  57. extern void halt_cpu(void);
  58. extern void cpu_sleep(void);
  59.  
  60. static inline void write_dr0(__u32 v);
  61. static inline __u32 read_dr0(void);
  62.  
  63. inline void write_dr0(__u32 v) { __asm__ volatile ("movl %0,%%dr0\n" : : "r" (v)); }
  64. inline __u32 read_dr0(void) { __u32 v; __asm__ volatile ("movl %%dr0,%0" : "=r" (v)); return v; }
  65.  
  66. #endif
  67.