ia64/xen-unstable
view stubdom/libpci.config.h @ 18521:e61c7833dc9d
CPUIDLE: Handle C2 LAPIC timer & TSC stop
ACPI C2 is quite possible mapped to CPU C3 or deeper state, so
thinking from worst cases, enable C3 like entry/exit handling for C2
by default. Option 'lapic_timer_c2_ok' can be used to select simple C2
entry/exit only if the user make sure that LAPIC tmr & TSC will not be
stop during C2.
Signed-off-by: Wei Gang <gang.wei@intel.com>
ACPI C2 is quite possible mapped to CPU C3 or deeper state, so
thinking from worst cases, enable C3 like entry/exit handling for C2
by default. Option 'lapic_timer_c2_ok' can be used to select simple C2
entry/exit only if the user make sure that LAPIC tmr & TSC will not be
stop during C2.
Signed-off-by: Wei Gang <gang.wei@intel.com>
| author | Keir Fraser <keir.fraser@citrix.com> |
|---|---|
| date | Mon Sep 22 11:24:02 2008 +0100 (2008-09-22) |
| parents | b3d827e63a09 |
| children |