fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-um / processor-i386.h

diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h
index 4108a57..595f1c3 100644 (file)
--- a/include/asm-um/processor-i386.h
+++ b/include/asm-um/processor-i386.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
  * Licensed under the GPL
  */
@@ -6,21 +6,48 @@
 #ifndef __UM_PROCESSOR_I386_H
 #define __UM_PROCESSOR_I386_H
 
+#include "linux/string.h"
+#include "asm/host_ldt.h"
+#include "asm/segment.h"
+
 extern int host_has_xmm;
 extern int host_has_cmov;
 
 /* include faultinfo structure */
 #include "sysdep/faultinfo.h"
 
+struct uml_tls_struct {
+       struct user_desc tls;
+       unsigned flushed:1;
+       unsigned present:1;
+};
+
 struct arch_thread {
+       struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
        unsigned long debugregs[8];
        int debugregs_seq;
        struct faultinfo faultinfo;
 };
 
-#define INIT_ARCH_THREAD { .debugregs                  = { [ 0 ... 7 ] = 0 }, \
-                           .debugregs_seq      = 0, \
-                           .faultinfo          = { 0, 0, 0 } }
+#define INIT_ARCH_THREAD { \
+       .tls_array              = { [ 0 ... GDT_ENTRY_TLS_ENTRIES - 1 ] = \
+                                   { .present = 0, .flushed = 0 } }, \
+       .debugregs              = { [ 0 ... 7 ] = 0 }, \
+       .debugregs_seq          = 0, \
+       .faultinfo              = { 0, 0, 0 } \
+}
+
+static inline void arch_flush_thread(struct arch_thread *thread)
+{
+       /* Clear any TLS still hanging */
+       memset(&thread->tls_array, 0, sizeof(thread->tls_array));
+}
+
+static inline void arch_copy_thread(struct arch_thread *from,
+                                    struct arch_thread *to)
+{
+        memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array));
+}
 
 #include "asm/arch/user.h"