aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/x86_64/Kconfig15
-rw-r--r--drivers/acpi/Kconfig8
2 files changed, 3 insertions, 20 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
357config 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
372config HPET_EMULATE_RTC 357config 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
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 0cce28c4025b..9dc2fbe6efa7 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -285,9 +285,8 @@ config ACPI_SYSTEM
285 dump your ACPI DSDT table using /proc/acpi/dsdt. 285 dump your ACPI DSDT table using /proc/acpi/dsdt.
286 286
287config X86_PM_TIMER 287config X86_PM_TIMER
288 bool "Power Management Timer Support" 288 bool "Power Management Timer Support" if EMBEDDED
289 depends on X86 289 depends on X86
290 depends on !X86_64
291 default y 290 default y
292 help 291 help
293 The Power Management Timer is available on all ACPI-capable, 292 The Power Management Timer is available on all ACPI-capable,
@@ -298,9 +297,8 @@ config X86_PM_TIMER
298 voltage scaling, unlike the commonly used Time Stamp Counter 297 voltage scaling, unlike the commonly used Time Stamp Counter
299 (TSC) timing source. 298 (TSC) timing source.
300 299
301 So, if you see messages like 'Losing too many ticks!' in the 300 You should nearly always say Y here because many modern
302 kernel logs, and/or you are using this on a notebook which 301 systems require this timer.
303 does not yet have an HPET, you should say "Y" here.
304 302
305config ACPI_CONTAINER 303config ACPI_CONTAINER
306 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 304 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"