Messages in this thread Patch in this message | | | Date | Fri, 19 Nov 2010 13:55:35 -0800 | From | Greg KH <> | Subject | [14/82] intel_idle: do not use the LAPIC timer for ATOM C2 |
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2.6.35-stable review patch. If anyone has any objections, please let us know.
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From: Len Brown <len.brown@intel.com>
commit c25d29952b2a8c9aaf00e081c9162a0e383030cd upstream.
If we use the LAPIC timer during ATOM C2 on some nvidia chisets, the system stalls.
https://bugzilla.kernel.org/show_bug.cgi?id=21032
Signed-off-by: Len Brown <len.brown@intel.com> Cc: Tom Gundersen <teg@jklm.no> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/idle/intel_idle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -308,7 +308,7 @@ static int intel_idle_probe(void) break; case 0x1C: /* 28 - Atom Processor */ - lapic_timer_reliable_states = (1 << 2) | (1 << 1); /* C2, C1 */ + lapic_timer_reliable_states = (1 << 1); /* C1 */ cpuidle_state_table = atom_cstates; choose_substate = choose_zero_substate; break;
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