From: Gustavo F. Padovan Date: Mon, 16 Feb 2009 00:48:53 +0000 (-0300) Subject: x86, fixmap: define FIXADDR_BOOT_* and redefine FIX_ADDR_SIZE X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ab93e3c45dbac66c2e8e24fd560c052a3907903e;p=deliverable%2Flinux.git 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 Acked-by: Glauber Costa Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/include/asm/fixmap_64.h b/arch/x86/include/asm/fixmap_64.h index 298d9ba3faeb..d905de086753 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)