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