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x86: Remove GDR related magic numbers

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--
Changes for v2:
 - Use an enum
 - Add defined for GDT size (previously added in patch 7)
 - Use X86_ namespace (as per Linux headers)
This commit is contained in:
Graeme Russ 2011-12-31 10:24:36 +11:00
parent 1176a7067a
commit 109ad143f8
3 changed files with 25 additions and 9 deletions
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23
arch/x86/include/asm/processor.h
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@ -24,9 +24,24 @@
#ifndef __ASM_PROCESSOR_H_
#define __ASM_PROCESSOR_H_ 1
#define GDT_ENTRY_32BIT_CS 2
#define GDT_ENTRY_32BIT_DS (GDT_ENTRY_32BIT_CS + 1)
#define GDT_ENTRY_16BIT_CS (GDT_ENTRY_32BIT_DS + 1)
#define GDT_ENTRY_16BIT_DS (GDT_ENTRY_16BIT_CS + 1)
#define X86_GDT_ENTRY_SIZE 8
#ifndef __ASSEMBLY__
enum {
X86_GDT_ENTRY_NULL = 0,
X86_GDT_ENTRY_UNUSED,
X86_GDT_ENTRY_32BIT_CS,
X86_GDT_ENTRY_32BIT_DS,
X86_GDT_ENTRY_16BIT_CS,
X86_GDT_ENTRY_16BIT_DS,
X86_GDT_NUM_ENTRIES
};
#else
/* NOTE: If the above enum is modified, this define must be checked */
#define X86_GDT_ENTRY_32BIT_DS 3
#endif
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
#endif