diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86_64/Kconfig | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 2f9deca31cc9..babc31b3ef12 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig | |||
@@ -354,21 +354,6 @@ config HPET_TIMER | |||
354 | as it is off-chip. You can find the HPET spec at | 354 | as it is off-chip. You can find the HPET spec at |
355 | <http://www.intel.com/hardwaredesign/hpetspec.htm>. | 355 | <http://www.intel.com/hardwaredesign/hpetspec.htm>. |
356 | 356 | ||
357 | config X86_PM_TIMER | ||
358 | bool "PM timer" if EMBEDDED | ||
359 | depends on ACPI | ||
360 | default y | ||
361 | help | ||
362 | Support the ACPI PM timer for time keeping. This is slow, | ||
363 | but is useful on some chipsets without HPET on systems with more | ||
364 | than one CPU. On a single processor or single socket multi core | ||
365 | system it is normally not required. | ||
366 | When the PM timer is active 64bit vsyscalls are disabled | ||
367 | and should not be enabled (/proc/sys/kernel/vsyscall64 should | ||
368 | not be changed). | ||
369 | The kernel selects the PM timer only as a last resort, so it is | ||
370 | useful to enable just in case. | ||
371 | |||
372 | config HPET_EMULATE_RTC | 357 | config HPET_EMULATE_RTC |
373 | bool "Provide RTC interrupt" | 358 | bool "Provide RTC interrupt" |
374 | depends on HPET_TIMER && RTC=y | 359 | depends on HPET_TIMER && RTC=y |