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