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da5e09a1b3
linux/drivers/acpi
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Zhao Yakui da5e09a1b3 ACPI : Create "idle=nomwait" bootparam 
"idle=nomwait" disables the use of the MWAIT
instruction from both C1 (C1_FFH) and deeper (C2C3_FFH)
C-states.

When MWAIT is unavailable, the BIOS and OS generally
negotiate to use the HALT instruction for C1,
and use IO accesses for deeper C-states.

This option is useful for power and performance
comparisons, and also to work around BIOS bugs
where broken MWAIT support is advertised.

http://bugzilla.kernel.org/show_bug.cgi?id=10807
http://bugzilla.kernel.org/show_bug.cgi?id=10914

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-16 23:27:05 +02:00
..
dispatcher ACPICA: Cleanup debug operand dump mechanism 2008-07-16 23:27:04 +02:00
events ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from user-space 2008-07-16 23:27:04 +02:00
executer ACPICA: Cleanup debug operand dump mechanism 2008-07-16 23:27:04 +02:00
hardware ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from user-space 2008-07-16 23:27:04 +02:00
namespace ACPICA: Cleanup debug operand dump mechanism 2008-07-16 23:27:04 +02:00
parser ACPICA: Eliminate acpi_native_uint type v2 2008-07-16 23:27:03 +02:00
resources ACPICA: Cleanup of _PRT parsing code 2008-07-16 23:27:04 +02:00
sleep ACPI PM: Remove obsolete Toshiba workaround 2008-07-16 23:27:02 +02:00
tables ACPICA: Eliminate acpi_native_uint type v2 2008-07-16 23:27:03 +02:00
utilities ACPICA: Fix mutex debug code for wrong loop termination value 2008-07-16 23:27:04 +02:00
ac.c ACPI: no AC status notification 2008-06-14 01:26:37 -04:00
acpi_memhotplug.c ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers 2007-07-23 13:56:42 -04:00
asus_acpi.c asus_acpi: remove misleading mask 2008-03-18 02:31:34 -04:00
battery.c acpi: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
bay.c dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled. 2008-07-16 23:27:02 +02:00
blacklist.c ACPI: DMI: quirk for FSC ESPRIMO Mobile V5505 2008-02-14 02:43:39 -05:00
bus.c ACPICA: Eliminate acpi_native_uint type v2 2008-07-16 23:27:03 +02:00
button.c acpi: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
cm_sbs.c ACPI: clean up ACPI_MODULE_NAME() use 2007-02-12 22:42:12 -05:00
container.c ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers 2007-07-23 13:56:42 -04:00
debug.c ACPI: add control method tracing support 2007-11-19 12:25:46 -05:00
dock.c dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled. 2008-07-16 23:27:02 +02:00
ec.c ACPI: EC: Use msleep instead of udelay while waiting for event. 2008-06-11 19:13:45 -04:00
event.c acpi: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
fan.c ACPI: fix acpi fan state set error 2008-07-16 23:27:01 +02:00
glue.c ACPI: don't walk tables if ACPI was disabled 2008-07-16 23:27:02 +02:00
Kconfig x86, VisWS: turn into generic arch, eliminate Kconfig specials 2008-07-10 18:55:47 +02:00
Makefile ACPI: SBS: Host controller must initialize before SBS. 2008-02-09 03:22:13 -05:00
numa.c ACPICA: Update DMAR and SRAT table definitions 2008-07-16 23:27:04 +02:00
osl.c flush kacpi_notify_wq before removing notify handler 2008-04-29 02:34:42 -04:00
pci_bind.c ACPI: misc cleanups 2008-02-07 03:33:23 -05:00
pci_irq.c Revert parts of "x86: update mptable" 2008-07-08 11:08:42 +02:00
pci_link.c ACPI: misc cleanups 2008-02-07 03:33:23 -05:00
pci_root.c ACPI: fix section mismatch in acpi_pci_root_add 2008-02-21 02:56:32 -05:00
power.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2008-04-30 11:52:52 -07:00
processor_core.c ACPI : Create "idle=nomwait" bootparam 2008-07-16 23:27:05 +02:00
processor_idle.c ACPI : Create "idle=nomwait" bootparam 2008-07-16 23:27:05 +02:00
processor_perflib.c ACPI: change processors from array to per_cpu variable 2008-07-16 23:27:01 +02:00
processor_thermal.c acpi: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
processor_throttling.c acpi: fix printk format warning 2008-07-16 23:27:01 +02:00
sbs.c acpi: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
sbshc.c ACPI: SBS: remove typo from sbchc.c 2008-03-18 05:13:14 -04:00
sbshc.h ACPI: SBS: Ignore alarms coming from unknown devices 2007-12-14 15:14:06 -05:00
scan.c ACPI: fix checkpatch.pl complaints in scan.c 2008-07-16 23:27:01 +02:00
system.c ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from user-space 2008-07-16 23:27:04 +02:00
tables.c Revert "ACPI: parse 2nd MADT by default" 2007-03-30 14:16:10 -04:00
thermal.c ACPI: Reject below-freezing temperatures as invalid critical temperatures 2008-06-11 19:13:47 -04:00
toshiba_acpi.c toshiba_acpi: Enable autoloading 2008-03-11 13:35:08 -04:00
utils.c ACPICA: Fixes for external Reference Objects 2008-04-22 19:08:51 -04:00
video.c ACPI Exception (video-1721): UNKNOWN_STATUS_CODE, Cant attach device 2008-06-14 01:01:18 -04:00
wmi.c ACPI: WMI: Clean up handling of spec violating data blocks 2008-03-11 17:59:05 -04:00