arch/x86/include/asm/processor.h

   1 /*
   2  * (C) Copyright 2002
   3  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef __ASM_PROCESSOR_H_
   9 #define __ASM_PROCESSOR_H_ 1
  10
  11 #define X86_GDT_ENTRY_SIZE      8
  12
  13 #ifndef __ASSEMBLY__
  14
  15 enum {
  16         X86_GDT_ENTRY_NULL = 0,
  17         X86_GDT_ENTRY_UNUSED,
  18         X86_GDT_ENTRY_32BIT_CS,
  19         X86_GDT_ENTRY_32BIT_DS,
  20         X86_GDT_ENTRY_32BIT_FS,
  21         X86_GDT_ENTRY_16BIT_CS,
  22         X86_GDT_ENTRY_16BIT_DS,
  23         X86_GDT_NUM_ENTRIES
  24 };
  25 #else
  26 /* NOTE: If the above enum is modified, this define must be checked */
  27 #define X86_GDT_ENTRY_32BIT_DS  3
  28 #define X86_GDT_NUM_ENTRIES     7
  29 #endif
  30
  31 #define X86_GDT_SIZE            (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
  32
  33 #endif