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  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.  /** @addtogroup ia32 ia32
  30.  * @ingroup others
  31.  * @{
  32.  */
  33. /** @file
  34.  */
  35.  
  36. #include <arch.h>
  37.  
  38. #include <arch/types.h>
  39. #include <typedefs.h>
  40.  
  41. #include <arch/pm.h>
  42.  
  43. #include <arch/drivers/ega.h>
  44. #include <arch/drivers/vesa.h>
  45. #include <genarch/i8042/i8042.h>
  46. #include <arch/drivers/i8254.h>
  47. #include <arch/drivers/i8259.h>
  48.  
  49. #include <arch/context.h>
  50.  
  51. #include <config.h>
  52.  
  53. #include <arch/interrupt.h>
  54. #include <arch/asm.h>
  55. #include <genarch/acpi/acpi.h>
  56.  
  57. #include <arch/bios/bios.h>
  58.  
  59. #include <arch/mm/memory_init.h>
  60. #include <interrupt.h>
  61. #include <arch/debugger.h>
  62. #include <proc/thread.h>
  63. #include <syscall/syscall.h>
  64. #include <console/console.h>
  65.  
  66. void arch_pre_mm_init(void)
  67. {
  68.     pm_init();
  69.  
  70.     if (config.cpu_active == 1) {
  71.         bios_init();
  72.         i8259_init();   /* PIC */
  73.         i8254_init();   /* hard clock */
  74.        
  75.         exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall);
  76.        
  77.         #ifdef CONFIG_SMP
  78.         exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown",
  79.                  (iroutine) tlb_shootdown_ipi);
  80.         #endif /* CONFIG_SMP */
  81.     }
  82. }
  83.  
  84. void arch_post_mm_init(void)
  85. {
  86.     if (config.cpu_active == 1) {
  87.  
  88. #ifdef CONFIG_FB
  89.         if (vesa_present())
  90.             vesa_init();
  91.         else
  92. #endif
  93.             ega_init(); /* video */
  94.        
  95.        
  96.         /* Enable debugger */
  97.         debugger_init();
  98.         /* Merge all memory zones to 1 big zone */
  99.         zone_merge_all();
  100.     }
  101. }
  102.  
  103. void arch_pre_smp_init(void)
  104. {
  105.     if (config.cpu_active == 1) {
  106.         memory_print_map();
  107.        
  108.         #ifdef CONFIG_SMP
  109.         acpi_init();
  110.         #endif /* CONFIG_SMP */
  111.     }
  112. }
  113.  
  114. void arch_post_smp_init(void)
  115. {
  116.     i8042_init();   /* keyboard controller */
  117. }
  118.  
  119. void calibrate_delay_loop(void)
  120. {
  121.     i8254_calibrate_delay_loop();
  122.     if (config.cpu_active == 1) {
  123.         /*
  124.          * This has to be done only on UP.
  125.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  126.          */
  127.         i8254_normal_operation();
  128.     }
  129. }
  130.  
  131. /** Set thread-local-storage pointer
  132.  *
  133.  * TLS pointer is set in GS register. That means, the GS contains
  134.  * selector, and the descriptor->base is the correct address.
  135.  */
  136. __native sys_tls_set(__native addr)
  137. {
  138.     THREAD->arch.tls = addr;
  139.     set_tls_desc(addr);
  140.  
  141.     return 0;
  142. }
  143.  
  144. /** Acquire console back for kernel
  145.  *
  146.  */
  147. void arch_grab_console(void)
  148. {
  149.     i8042_grab();
  150. }
  151. /** Return console to userspace
  152.  *
  153.  */
  154. void arch_release_console(void)
  155. {
  156.     i8042_release();
  157. }
  158.  
  159.  /** @}
  160.  */
  161.  
  162.