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| author | Andy Lutomirski <luto@mit.edu> | 2011-07-14 12:47:22 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-07-15 02:57:05 +0200 |
| commit | 98d0ac38ca7b1b7a552c9a2359174ff84decb600 (patch) | |
| tree | 0c244e828f86c779c348a4888ed9e303c3e59811 /arch/x86/kernel/hpet.c | |
| parent | clocksource: Replace vread with generic arch data (diff) | |
| download | linux-98d0ac38ca7b1b7a552c9a2359174ff84decb600.tar.xz linux-98d0ac38ca7b1b7a552c9a2359174ff84decb600.zip | |
x86-64: Move vread_tsc and vread_hpet into the vDSO
The vsyscall page now consists entirely of trap instructions.
Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/637648f303f2ef93af93bae25186e9a1bea093f5.1310639973.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/hpet.c')
| -rw-r--r-- | arch/x86/kernel/hpet.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 0e07257bb389..d10cc009845f 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -738,13 +738,6 @@ static cycle_t read_hpet(struct clocksource *cs) return (cycle_t)hpet_readl(HPET_COUNTER); } -#ifdef CONFIG_X86_64 -static cycle_t __vsyscall_fn vread_hpet(void) -{ - return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + 0xf0); -} -#endif - static struct clocksource clocksource_hpet = { .name = "hpet", .rating = 250, @@ -753,7 +746,7 @@ static struct clocksource clocksource_hpet = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, .resume = hpet_resume_counter, #ifdef CONFIG_X86_64 - .archdata = { .vread = vread_hpet }, + .archdata = { .vclock_mode = VCLOCK_HPET }, #endif }; |