Commit-ID: ab93e3c45dbac66c2e8e24fd560c052a3907903e
Gitweb: http://git.kernel.org/tip/ab93e3c45dbac66c2e8e24fd560c052a3907903e
Author: Gustavo F. Padovan <gustavo@xxxxxxxxxxxxxxxxx>
AuthorDate: Sun, 15 Feb 2009 21:48:53 -0300
Commit: H. Peter Anvin <hpa@xxxxxxxxx>
CommitDate: Fri, 27 Feb 2009 20:57:47 -0800
x86, fixmap: define FIXADDR_BOOT_* and redefine FIX_ADDR_SIZE
Impact: new interface, not yet used
Now, with these macros, x86_64 code can know where start the
permanent and non-permanent fixed mapped address.
This patch make these macros equal fixmap_32.h for future
x86 integration.
Signed-off-by: Gustavo F. Padovan <gustavo@xxxxxxxxxxxxxxxxx>
Acked-by: Glauber Costa <gcosta@xxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
---
arch/x86/include/asm/fixmap_64.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/fixmap_64.h b/arch/x86/include/asm/fixmap_64.h
index 298d9ba..d905de0 100644
--- a/arch/x86/include/asm/fixmap_64.h
+++ b/arch/x86/include/asm/fixmap_64.h
@@ -69,8 +69,11 @@ enum fixed_addresses {
};
#define FIXADDR_TOP (VSYSCALL_END-PAGE_SIZE)
-#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
-#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
+#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)
/* Only covers 32bit vsyscalls currently. Need another set for 64bit. */
#define FIXADDR_USER_START ((unsigned long)VSYSCALL32_VSYSCALL)
--
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