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| author | Andy Lutomirski <luto@amacapital.net> | 2014-05-05 21:19:36 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-05-05 22:19:01 +0200 |
| commit | f40c330091c7aa9956ab66f97a3abc8a68b67240 (patch) | |
| tree | b0c03dce9bf67eb15c98980a7323ca35122d10df /arch/x86/include/asm/fixmap.h | |
| parent | x86, vdso: Move the 32-bit vdso special pages after the text (diff) | |
| download | linux-f40c330091c7aa9956ab66f97a3abc8a68b67240.tar.xz linux-f40c330091c7aa9956ab66f97a3abc8a68b67240.zip | |
x86, vdso: Move the vvar and hpet mappings next to the 64-bit vDSO
This makes the 64-bit and x32 vdsos use the same mechanism as the
32-bit vdso. Most of the churn is deleting all the old fixmap code.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/8af87023f57f6bb96ec8d17fce3f88018195b49b.1399317206.git.luto@amacapital.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/fixmap.h')
| -rw-r--r-- | arch/x86/include/asm/fixmap.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index 43f482a0db37..b0910f97a3ea 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/arch/x86/include/asm/fixmap.h @@ -24,7 +24,7 @@ #include <linux/threads.h> #include <asm/kmap_types.h> #else -#include <asm/vsyscall.h> +#include <uapi/asm/vsyscall.h> #endif /* @@ -41,7 +41,8 @@ extern unsigned long __FIXADDR_TOP; #define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP) #else -#define FIXADDR_TOP (VSYSCALL_END-PAGE_SIZE) +#define FIXADDR_TOP (round_up(VSYSCALL_ADDR + PAGE_SIZE, 1<<PMD_SHIFT) - \ + PAGE_SIZE) #endif @@ -68,11 +69,7 @@ enum fixed_addresses { #ifdef CONFIG_X86_32 FIX_HOLE, #else - VSYSCALL_LAST_PAGE, - VSYSCALL_FIRST_PAGE = VSYSCALL_LAST_PAGE - + ((VSYSCALL_END-VSYSCALL_START) >> PAGE_SHIFT) - 1, - VVAR_PAGE, - VSYSCALL_HPET, + VSYSCALL_PAGE = (FIXADDR_TOP - VSYSCALL_ADDR) >> PAGE_SHIFT, #ifdef CONFIG_PARAVIRT_CLOCK PVCLOCK_FIXMAP_BEGIN, PVCLOCK_FIXMAP_END = PVCLOCK_FIXMAP_BEGIN+PVCLOCK_VSYSCALL_NR_PAGES-1, |