hal/halx86/mp/i386/mps.S

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            hal/halx86/mp/mps.S
   6  * PURPOSE:         Intel MultiProcessor specification support
   7  * PROGRAMMER:      Casper S. Hornstrup (chorns@users.sourceforge.net)
   8  * UPDATE HISTORY:
   9  *                  Created 12/04/2001
  10  */
  11
  12 /* INCLUDES ******************************************************************/
  13
  14 #include <ndk/asm.h>
  15
  16 /* FUNCTIONS *****************************************************************/
  17
  18 #define BEFORE \
  19   cld; \
  20   pusha; \
  21   pushl %ds; \
  22   pushl %es; \
  23   pushl %fs; \
  24   pushl %gs; \
  25   movl  $(KGDT_R0_DATA), %eax; \
  26   movl  %eax, %ds; \
  27   movl  %eax, %es; \
  28   movl  %eax, %gs; \
  29   movl  $(KGDT_R0_PCR), %eax; \
  30   movl  %eax, %fs;
  31
  32 #define AFTER \
  33   popl  %gs; \
  34   popl  %fs; \
  35   popl  %es; \
  36   popl  %ds; \
  37   popa;
  38
  39 .global _MpsIpiInterrupt
  40 _MpsIpiInterrupt:
  41   /* Save registers */
  42   BEFORE
  43
  44   /* Call the C handler */
  45   call  _MpsIpiHandler
  46
  47         /* Return to the caller */
  48   AFTER
  49   iret
  50
  51
  52 .globl _MpsErrorInterrupt
  53 _MpsErrorInterrupt:
  54   /* Save registers */
  55   BEFORE
  56
  57   /* Call the C handler */
  58   call  _MpsErrorHandler
  59
  60         /* Return to the caller */
  61   AFTER
  62   iret
  63
  64
  65 .globl _MpsSpuriousInterrupt
  66 _MpsSpuriousInterrupt:
  67   /* Save registers */
  68   BEFORE
  69
  70   /* Call the C handler */
  71   call  _MpsSpuriousHandler
  72
  73         /* Return to the caller */
  74   AFTER
  75   iret
  76
  77 .global _MpsTimerInterrupt
  78 _MpsTimerInterrupt:
  79         cld
  80         pusha
  81         movl    $0xef,%ebx
  82         pushl   %ds
  83         pushl   %es
  84         pushl   %fs
  85         pushl   %gs
  86         movl    $0xceafbeef,%eax
  87         pushl   %eax
  88         movl    $(KGDT_R0_DATA),%eax
  89         movl    %eax,%ds
  90         movl    %eax,%es
  91         movl    %eax,%gs
  92         movl    $(KGDT_R0_PCR),%eax
  93         movl    %eax,%fs
  94         pushl   %esp
  95         pushl   %ebx
  96         call    _MpsTimerHandler
  97         popl    %eax
  98         popl    %eax
  99         popl    %eax
 100         popl    %gs
 101         popl    %fs
 102         popl    %es
 103         popl    %ds
 104         popa
 105         iret
 106
 107
 108
 109 /* EOF */