Subversion Repositories HelenOS-historic

Rev

Rev 703 | Rev 1223 | 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 __ARCH_H__
  30. #define __ARCH_H__
  31.  
  32. #include <arch/types.h>
  33. #include <typedefs.h>
  34.  
  35. #include <cpu.h>
  36. #include <arch/cpu.h>
  37. #include <arch/asm.h>
  38.  
  39. #define CPU         THE->cpu
  40. #define THREAD          THE->thread
  41. #define TASK            THE->task
  42. #define AS          THE->as
  43. #define PREEMPTION_DISABLED THE->preemption_disabled
  44.  
  45. /**
  46.  * For each possible kernel stack, structure
  47.  * of the following type will be placed at
  48.  * the base address of the stack.
  49.  */
  50. struct the {
  51.     count_t preemption_disabled;    /**< Preemption disabled counter. */
  52.     thread_t *thread;       /**< Current thread. */
  53.     task_t *task;           /**< Current task. */
  54.     cpu_t *cpu;         /**< Executing cpu. */
  55.     as_t *as;           /**< Current address space. */
  56. };
  57.  
  58. #define THE     ((the_t *)(get_stack_base()))  
  59.  
  60. extern void the_initialize(the_t *the);
  61. extern void the_copy(the_t *src, the_t *dst);
  62.  
  63. extern void arch_pre_mm_init(void);
  64. extern void arch_post_mm_init(void);
  65. extern void arch_pre_smp_init(void);
  66. extern void arch_post_smp_init(void);
  67. extern void calibrate_delay_loop(void);
  68.  
  69. extern ipl_t interrupts_disable(void);
  70. extern ipl_t interrupts_enable(void);
  71. extern void interrupts_restore(ipl_t ipl);
  72. extern ipl_t interrupts_read(void);
  73.  
  74. #endif
  75.