fedora core 6 1.2949 + vserver 2.2.0

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

diff --git a/include/asm-i386/fixmap.h b/include/asm-i386/fixmap.h
index 07d4c64..3e9f610 100644 (file)
--- a/include/asm-i386/fixmap.h
+++ b/include/asm-i386/fixmap.h
@@ -13,7 +13,21 @@
 #ifndef _ASM_FIXMAP_H
 #define _ASM_FIXMAP_H
 
-#include <linux/config.h>
+
+/* used by vmalloc.c, vsyscall.lds.S.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap.
+ */
+#ifndef CONFIG_COMPAT_VDSO
+extern unsigned long __FIXADDR_TOP;
+#else
+#define __FIXADDR_TOP  0xfffff000
+#define FIXADDR_USER_START     __fix_to_virt(FIX_VDSO)
+#define FIXADDR_USER_END       __fix_to_virt(FIX_VDSO - 1)
+#endif
+
+#ifndef __ASSEMBLY__
 #include <linux/kernel.h>
 #include <asm/acpi.h>
 #include <asm/apicdef.h>
@@ -43,7 +57,7 @@
  */
 enum fixed_addresses {
        FIX_HOLE,
-       FIX_VSYSCALL,
+       FIX_VDSO,
 #ifdef CONFIG_X86_LOCAL_APIC
        FIX_APIC_BASE,  /* local (CPU) APIC) -- required for SMP or not */
 #endif
@@ -67,7 +81,7 @@ enum fixed_addresses {
        FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
        FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
 #endif
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
        FIX_ACPI_BEGIN,
        FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
 #endif
@@ -85,6 +99,7 @@ enum fixed_addresses {
 
 extern void __set_fixmap (enum fixed_addresses idx,
                                        unsigned long phys, pgprot_t flags);
+extern void reserve_top_address(unsigned long reserve);
 
 #define set_fixmap(idx, phys) \
                __set_fixmap(idx, phys, PAGE_KERNEL)
@@ -97,27 +112,16 @@ extern void __set_fixmap (enum fixed_addresses idx,
 #define clear_fixmap(idx) \
                __set_fixmap(idx, 0, __pgprot(0))
 
-/*
- * used by vmalloc.c.
- *
- * Leave one empty page between vmalloc'ed areas and
- * the start of the fixmap.
- */
-#define FIXADDR_TOP    (0xfffff000UL)
+#define FIXADDR_TOP    ((unsigned long)__FIXADDR_TOP)
+
 #define __FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
-#define FIXADDR_START  (FIXADDR_TOP - __FIXADDR_SIZE)
+#define __FIXADDR_BOOT_SIZE    (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_START          (FIXADDR_TOP - __FIXADDR_SIZE)
+#define FIXADDR_BOOT_START     (FIXADDR_TOP - __FIXADDR_BOOT_SIZE)
 
 #define __fix_to_virt(x)       (FIXADDR_TOP - ((x) << PAGE_SHIFT))
 #define __virt_to_fix(x)       ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
 
-/*
- * This is the range that is readable by user mode, and things
- * acting like user mode such as get_user_pages.
- */
-#define FIXADDR_USER_START     (__fix_to_virt(FIX_VSYSCALL))
-#define FIXADDR_USER_END       (FIXADDR_USER_START + PAGE_SIZE)
-
-
 extern void __this_fixmap_does_not_exist(void);
 
 /*
@@ -125,7 +129,7 @@ extern void __this_fixmap_does_not_exist(void);
  * directly without tranlation, we catch the bug with a NULL-deference
  * kernel oops. Illegal ranges of incoming indices are caught too.
  */
-static inline unsigned long fix_to_virt(const unsigned int idx)
+static __always_inline unsigned long fix_to_virt(const unsigned int idx)
 {
        /*
         * this branch gets completely eliminated after inlining,
@@ -148,4 +152,5 @@ static inline unsigned long virt_to_fix(const unsigned long vaddr)
        return __virt_to_fix(vaddr);
 }
 
+#endif /* !__ASSEMBLY__ */
 #endif