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| author | Andi Kleen <ak@suse.de> | 2006-10-22 00:38:23 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-10-22 00:38:23 +0200 |
| commit | 37b1bccfe75691f5f42bf210d8a349f931896887 (patch) | |
| tree | 13a4e7934f3597336ebdfde1d720b5f2c877ad6e | |
| parent | cb7fabcf9d4340b61f012cc7e8e3d7ff5c4f441c (diff) | |
| download | linux-37b1bccfe75691f5f42bf210d8a349f931896887.tar.gz linux-37b1bccfe75691f5f42bf210d8a349f931896887.tar.bz2 linux-37b1bccfe75691f5f42bf210d8a349f931896887.zip | |
[PATCH] x86-64: Fix C3 timer test
There was a typo in the C3 latency test to decide of the TSC
should be used or not. It used the C2 latency threshold, not the
C3 one. Fix that.
This should fix the time on various dual core laptops.
Signed-off-by: Andi Kleen <ak@suse.de>
| -rw-r--r-- | arch/x86_64/kernel/time.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 1ba5a442ac32..88722f11ca13 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -948,7 +948,7 @@ __cpuinit int unsynchronized_tsc(void) if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) { #ifdef CONFIG_ACPI /* But TSC doesn't tick in C3 so don't use it there */ - if (acpi_fadt.length > 0 && acpi_fadt.plvl3_lat < 100) + if (acpi_fadt.length > 0 && acpi_fadt.plvl3_lat < 1000) return 1; #endif return 0; |