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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. #ifndef __amd64_CPU_H__
  30. #define __amd64_CPU_H__
  31.  
  32.  
  33. #define EFER_MSR_NUM    0xc0000080
  34. #define AMD_SCE_FLAG    0
  35. #define AMD_LME_FLAG    8
  36. #define AMD_LMA_FLAG    10
  37. #define AMD_FFXSR_FLAG  14
  38. #define AMD_NXE_FLAG    11
  39.  
  40. /* MSR registers */
  41. #define AMD_MSR_STAR    0xc0000081
  42. #define AMD_MSR_LSTAR   0xc0000082
  43. #define AMD_MSR_SFMASK  0xc0000084
  44. #define AMD_MSR_GS      0xc0000101
  45.  
  46. #ifndef __ASM__
  47.  
  48. #include <typedefs.h>
  49. #include <arch/pm.h>
  50.  
  51. struct cpu_arch {
  52.     int vendor;
  53.     int family;
  54.     int model;
  55.     int stepping;
  56.     struct tss *tss;
  57. };
  58.  
  59. struct star_msr {
  60.    
  61. };
  62.  
  63. struct lstar_msr {
  64.    
  65. };
  66.  
  67. extern void set_efer_flag(int flag);
  68. extern __u64 read_efer_flag(void);
  69. void cpu_setup_fpu(void);
  70.  
  71. #endif /* __ASM__ */
  72.  
  73. #endif
  74.