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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. #include <arch.h>
  30.  
  31. #include <arch/types.h>
  32. #include <typedefs.h>
  33.  
  34. #include <arch/pm.h>
  35.  
  36. #include <arch/ega.h>
  37. #include <genarch/i8042/i8042.h>
  38. #include <arch/i8254.h>
  39. #include <arch/i8259.h>
  40.  
  41. #include <arch/context.h>
  42.  
  43. #include <config.h>
  44.  
  45. #include <arch/interrupt.h>
  46. #include <arch/asm.h>
  47. #include <genarch/acpi/acpi.h>
  48.  
  49. #include <arch/bios/bios.h>
  50.  
  51. #include <arch/mm/memory_init.h>
  52. #include <interrupt.h>
  53. #include <arch/debugger.h>
  54. #include <proc/thread.h>
  55. #include <syscall/syscall.h>
  56.  
  57. void arch_pre_mm_init(void)
  58. {
  59.     pm_init();
  60.  
  61.     if (config.cpu_active == 1) {
  62.         bios_init();
  63.         i8259_init();   /* PIC */
  64.         i8254_init();   /* hard clock */
  65.        
  66.         exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall);
  67.        
  68.         #ifdef CONFIG_SMP
  69.         exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown",
  70.                  (iroutine) tlb_shootdown_ipi);
  71.         #endif /* CONFIG_SMP */
  72.     }
  73. }
  74.  
  75. void arch_post_mm_init(void)
  76. {
  77.     if (config.cpu_active == 1) {
  78.         ega_init(); /* video */
  79.         /* Enable debugger */
  80.         debugger_init();
  81.     }
  82. }
  83.  
  84. void arch_pre_smp_init(void)
  85. {
  86.     if (config.cpu_active == 1) {
  87.         memory_print_map();
  88.        
  89.         #ifdef CONFIG_SMP
  90.         acpi_init();
  91.         #endif /* CONFIG_SMP */
  92.     }
  93. }
  94.  
  95. void arch_post_smp_init(void)
  96. {
  97.     i8042_init();   /* keyboard controller */
  98. }
  99.  
  100. void calibrate_delay_loop(void)
  101. {
  102.     i8254_calibrate_delay_loop();
  103.     if (config.cpu_active == 1) {
  104.         /*
  105.          * This has to be done only on UP.
  106.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  107.          */
  108.         i8254_normal_operation();
  109.     }
  110. }
  111.  
  112. /** Set Thread-local-storeage pointer
  113.  *
  114.  * TLS pointer is set in FS register. Unfortunately the 64-bit
  115.  * part can be set only in CPL0 mode.
  116.  *
  117.  * The specs says, that on %fs:0 there is stored contents of %fs register,
  118.  * we need not to go to CPL0 to read it.
  119.  */
  120. __native sys_tls_set(__native addr)
  121. {
  122.     THREAD->tls = addr;
  123.     set_tls_desc(addr);
  124.  
  125.     return 0;
  126. }
  127.