diff options
| author | David Woodhouse <dwmw2@infradead.org> | 2006-10-01 17:55:53 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-10-01 17:55:53 +0100 |
| commit | 8a84fc15ae5cafcc366dd85cf8e1ab2040679abc (patch) | |
| tree | 5d8dce194c9667fa92e9ec9f545cec867a9a1e0d /include/asm-i386/segment.h | |
| parent | 28b79ff9661b22e4c41c0d00d4ab8503e810f13d (diff) | |
| parent | 82965addad66fce61a92c5f03104ea90b0b87124 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Manually resolve conflict in include/mtd/Kbuild
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include/asm-i386/segment.h')
| -rw-r--r-- | include/asm-i386/segment.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h index faf995307b9e..b7ab59685ba7 100644 --- a/include/asm-i386/segment.h +++ b/include/asm-i386/segment.h @@ -83,6 +83,11 @@ #define GDT_SIZE (GDT_ENTRIES * 8) +/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */ +#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8) +/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ +#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) + /* Simple and small GDT entries for booting only */ #define GDT_ENTRY_BOOT_CS 2 @@ -112,4 +117,16 @@ */ #define IDT_ENTRIES 256 +/* Bottom two bits of selector give the ring privilege level */ +#define SEGMENT_RPL_MASK 0x3 +/* Bit 2 is table indicator (LDT/GDT) */ +#define SEGMENT_TI_MASK 0x4 + +/* User mode is privilege level 3 */ +#define USER_RPL 0x3 +/* LDT segment has TI set, GDT has it cleared */ +#define SEGMENT_LDT 0x4 +#define SEGMENT_GDT 0x0 + +#define get_kernel_rpl() 0 #endif |