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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-30 13:31:09 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:31:09 +0100
commitb23be399da88a5008b1db4db06f03146b25cdc52 (patch)
treed54acf84d3999dc957b2c5c2a23b117468c2efc2 /include/asm-x86/segment_32.h
parent15ee09b40831ae88eb8a804a647b6935eb8b7114 (diff)
downloadop-kernel-dev-b23be399da88a5008b1db4db06f03146b25cdc52.zip
op-kernel-dev-b23be399da88a5008b1db4db06f03146b25cdc52.tar.gz
x86: remove arch specific segment headers
This file puts the remainder of the arch specificic segment headers in segment.h. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/segment_32.h')
-rw-r--r--include/asm-x86/segment_32.h122
1 files changed, 0 insertions, 122 deletions
diff --git a/include/asm-x86/segment_32.h b/include/asm-x86/segment_32.h
index 3e133ad..8b13789 100644
--- a/include/asm-x86/segment_32.h
+++ b/include/asm-x86/segment_32.h
@@ -1,123 +1 @@
-#ifndef _ASM_SEGMENT_H
-#define _ASM_SEGMENT_H
-/*
- * The layout of the per-CPU GDT under Linux:
- *
- * 0 - null
- * 1 - reserved
- * 2 - reserved
- * 3 - reserved
- *
- * 4 - unused <==== new cacheline
- * 5 - unused
- *
- * ------- start of TLS (Thread-Local Storage) segments:
- *
- * 6 - TLS segment #1 [ glibc's TLS segment ]
- * 7 - TLS segment #2 [ Wine's %fs Win32 segment ]
- * 8 - TLS segment #3
- * 9 - reserved
- * 10 - reserved
- * 11 - reserved
- *
- * ------- start of kernel segments:
- *
- * 12 - kernel code segment <==== new cacheline
- * 13 - kernel data segment
- * 14 - default user CS
- * 15 - default user DS
- * 16 - TSS
- * 17 - LDT
- * 18 - PNPBIOS support (16->32 gate)
- * 19 - PNPBIOS support
- * 20 - PNPBIOS support
- * 21 - PNPBIOS support
- * 22 - PNPBIOS support
- * 23 - APM BIOS support
- * 24 - APM BIOS support
- * 25 - APM BIOS support
- *
- * 26 - ESPFIX small SS
- * 27 - per-cpu [ offset to per-cpu data area ]
- * 28 - unused
- * 29 - unused
- * 30 - unused
- * 31 - TSS for double fault handler
- */
-#define GDT_ENTRY_TLS_MIN 6
-#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
-
-#define GDT_ENTRY_DEFAULT_USER_CS 14
-#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS * 8 + 3)
-
-#define GDT_ENTRY_DEFAULT_USER_DS 15
-#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS * 8 + 3)
-
-#define GDT_ENTRY_KERNEL_BASE 12
-
-#define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE + 0)
-#define __KERNEL_CS (GDT_ENTRY_KERNEL_CS * 8)
-
-#define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE + 1)
-#define __KERNEL_DS (GDT_ENTRY_KERNEL_DS * 8)
-
-#define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE + 4)
-#define GDT_ENTRY_LDT (GDT_ENTRY_KERNEL_BASE + 5)
-
-#define GDT_ENTRY_PNPBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 6)
-#define GDT_ENTRY_APMBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 11)
-
-#define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14)
-#define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)
-
-#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
-#ifdef CONFIG_SMP
-#define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8)
-#else
-#define __KERNEL_PERCPU 0
-#endif
-
-#define GDT_ENTRY_DOUBLEFAULT_TSS 31
-
-/*
- * The GDT has 32 entries
- */
-#define GDT_ENTRIES 32
-
-/* Simple and small GDT entries for booting only */
-
-#define GDT_ENTRY_BOOT_CS 2
-#define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8)
-
-#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
-#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
-
-/* The PnP BIOS entries in the GDT */
-#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
-#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
-#define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2)
-#define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3)
-#define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4)
-
-/* The PnP BIOS selectors */
-#define PNP_CS32 (GDT_ENTRY_PNPBIOS_CS32 * 8) /* segment for calling fn */
-#define PNP_CS16 (GDT_ENTRY_PNPBIOS_CS16 * 8) /* code segment for BIOS */
-#define PNP_DS (GDT_ENTRY_PNPBIOS_DS * 8) /* data segment for BIOS */
-#define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1 * 8) /* transfer data segment */
-#define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2 * 8) /* another data segment */
-
-/*
- * Matching rules for certain types of segments.
- */
-
-/* Matches only __KERNEL_CS, ignoring PnP / USER / APM segments */
-#define SEGMENT_IS_KERNEL_CODE(x) (((x) & 0xfc) == GDT_ENTRY_KERNEL_CS * 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)
-
-#endif
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