[PATCH] x86-64/i386: Use common X86_PM_TIMER option and make it EMBEDDED

This makes x86-64 use the common X86_PM_TIMER Kconfig entry in drivers/acpi

And since PM timer is needed for correct timing on a lot of systems
now (e.g. AMD dual cores) and we often get bug reports from people
who forgot to set it make it depend on CONFIG_EMBEDDED. x86-64 had
this change before and it's a good thing.

I also fixed the description slightly to make this more clear.

Cc: len.brown@intel.com

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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
           as it is off-chip.  You can find the HPET spec at
           <http://www.intel.com/hardwaredesign/hpetspec.htm>.
 
-config X86_PM_TIMER
-        bool "PM timer" if EMBEDDED
-        depends on ACPI
-        default y
-        help
-          Support the ACPI PM timer for time keeping. This is slow,
-          but is useful on some chipsets without HPET on systems with more
-          than one CPU. On a single processor or single socket multi core
-          system it is normally not required.
-          When the PM timer is active 64bit vsyscalls are disabled
-          and should not be enabled (/proc/sys/kernel/vsyscall64 should
-          not be changed).
-          The kernel selects the PM timer only as a last resort, so it is
-          useful to enable just in case.
-
 config HPET_EMULATE_RTC
         bool "Provide RTC interrupt"
         depends on HPET_TIMER && RTC=y