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linux/drivers/acpi
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Arjan van de Ven 498a84db83 ACPI: fix High cpu temperature with 2.6.32 
commit 370d5cd885 upstream.

Since the rewrite of the CPU idle governor in 2.6.32, two laptops have
surfaced where the BIOS advertises a C2 power state, but for some reason
this state is not functioning (as verified in both cases by powertop
before the patch in .32).

The old governor had the accidental behavior that if a non-working state
was chosen too many times, it would end up falling back to C1.  The new
governor works differently and this accidental behavior is no longer
there; the result is a high temperature on these two machines.

This patch adds these 2 machines to the DMI table for C state anomalies;
by just not using C2 both these machines are better off (the TSC can be
used instead of the pm timer, giving a performance boost for example).

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14742

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Reported-by: <akwatts@ymail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-02-23 07:37:57 -08:00
..
acpica ACPICA: Silence the warning about _BIF returning the buffer 2009-11-24 21:34:35 -05:00
ac.c ACPI: add AC/DC notifier 2009-10-06 13:55:56 -04:00
acpi_memhotplug.c Merge branch 'bjorn-start-stop-2.6.32' into release 2009-09-19 01:56:39 -04:00
acpi_pad.c ACPI: create Processor Aggregator Device driver 2009-07-31 18:23:34 -04:00
battery.c Merge branch 'battery' into release 2009-09-19 01:56:17 -04:00
blacklist.c ACPI: Add Thinkpad T400, T500 to OSI(Linux) white-list 2009-11-24 22:34:06 -05:00
bus.c ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes 2010-02-09 04:50:44 -08:00
button.c ACPI: Use the return result of ACPI lid notifier chain correctly 2010-01-06 15:03:30 -08:00
cm_sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c Merge branch 'acpica' into release 2009-09-19 01:45:22 -04:00
debug.c acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file 2009-09-19 01:38:57 -04:00
dock.c ACPI: dock: fix "sibiling" typo 2009-10-03 01:08:28 -04:00
ec.c ACPI: EC: Add wait for irq storm 2010-01-25 10:49:36 -08:00
event.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
fan.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
glue.c Merge branch 'acpica' into release 2009-09-19 01:45:22 -04:00
internal.h ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
Kconfig ACPI: Kconfig, fix proc aggregator text 2009-10-09 13:14:51 -04:00
Makefile Merge branch 'acpi-pad' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-10-04 15:03:00 -07:00
numa.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
osl.c ACPI: Clarify resource conflict message 2009-09-27 03:12:13 -04:00
pci_bind.c ACPI: kill acpi_get_pci_id 2009-06-17 23:32:23 -04:00
pci_irq.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
pci_link.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
pci_root.c ACPI / PCI: Fix NULL pointer dereference in acpi_get_pci_dev() (rev. 2) 2009-10-13 01:14:53 -04:00
pci_slot.c Merge branch 'misc-2.6.32' into release 2009-09-19 02:14:45 -04:00
power_meter.c acpi-power-meter: Don't leak ACPI error codes to userspace 2009-11-05 12:25:39 -05:00
power.c Merge branch 'sfi-base' into release 2009-09-19 00:37:13 -04:00
proc.c ACPI: clean up video.c boundary checks and types 2009-10-28 11:49:37 -04:00
processor_core.c ACPI: add __cpuinit to acpi_processor_add() 2009-11-05 16:51:40 -05:00
processor_idle.c ACPI: fix High cpu temperature with 2.6.32 2010-02-23 07:37:57 -08:00
processor_perflib.c cpumask: use zalloc_cpumask_var() where possible 2009-09-24 09:34:24 +09:30
processor_thermal.c Merge branch 'processor-procfs-2.6.32' into release 2009-09-19 02:10:40 -04:00
processor_throttling.c ACPI: Move dereference after NULL test 2009-11-05 17:30:57 -05:00
reboot.c ACPI: reboot.c: use new acpi_reset interface 2008-12-31 01:15:00 -05:00
sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
sbshc.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
sbshc.h ACPI: SBS: Ignore alarms coming from unknown devices 2007-12-14 15:14:06 -05:00
scan.c ACPI: Add NULL pointer check in acpi_bus_start 2010-02-23 07:37:57 -08:00
sleep.c ACPI: DMI init_set_sci_en_on_resume for HP-Compaq C700 2009-11-23 11:44:12 -05:00
sleep.h ACPI: convert acpi_device_lock spinlock to mutex 2009-04-07 00:02:40 -04:00
system.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
tables.c ACPI: check acpi_disabled in acpi_table_parse() and acpi_table_parse_entries() 2009-08-28 19:57:28 -04:00
thermal.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
utils.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
video_detect.c ACPI: video: Loosen strictness of video bus detection code 2009-10-13 02:50:38 -04:00
video.c ACPI: clean up video.c boundary checks and types 2009-10-28 11:49:37 -04:00
wakeup.c ACPI PM: Replace wakeup.prepared with reference counter 2009-09-09 14:19:18 -07:00