kernel-fxtec-pro1x/drivers/acpi
Alex Shi 6240a10dc5 cpuidle / ACPI: recover percpu ACPI processor cstate
Commit ac3ebafa81 "ACPI / idle: remove usage of the statedata"
changed the percpu processor cstate to a unified cstate in ACPI idle.
That caused all our NHM boxes to boot hang or panic.

2178751 Task dump for CPU 1:
	2178752 swapper/1       R  running task     6736     0      1 0x00000000
	2178753  ffff8801e8029dc8 ffffffff8101cf96 ffff8801e8029e28 ffffffff813d294b
	2178754  0000000000000f99 0000000000000003 00000000003cf654 0000000025c17d03
	2178755  ffff8801e8029e38 ffff8801e74fc000 00000002590dc5c4 ffffffff8163cdb0
	2178756 Call Trace:
	2178757  [<ffffffff8101cf96>] ? acpi_processor_ffh_cstate_enter+0x2d/0x2f
	2178758  [<ffffffff813d294b>] acpi_idle_enter_bm+0x1b1/0x236
	2178759  [<ffffffff8163cdb0>] ? disable_cpuidle+0x10/0x10
	2178760  [<ffffffff8163cdc2>] cpuidle_enter+0x12/0x14
	2178761  [<ffffffff8163d286>] cpuidle_wrap_enter+0x2f/0x6d
	2178762  [<ffffffff8163d2d4>] cpuidle_enter_tk+0x10/0x12
	2178763  [<ffffffff8163cdd6>] cpuidle_enter_state+0x12/0x3a
	2178764  [<ffffffff8163d4a7>] cpuidle_idle_call+0xe8/0x161
	2178765  [<ffffffff81008d99>] cpu_idle+0x5e/0xa4
	2178766  [<ffffffff8174c6c1>] start_secondary+0x1a9/0x1ad
	2178767 Task dump for CPU 2:

In fact, the ACPI idle is based on the assumption of difference percpu
cstate structures that are necessary for the implementation to work
cprrectly.  A unique acpi_processor_cx is not sifficient by far.

This patch is just a quick fix re-introducing the percpu cstates.

If someone really wants to unify the ACPI cstates, please make sure
that the whole software infrastructure is changed and take hardware
as well as many different kinds of BIOS settings into account.

[rjw: Changelog]
Reported-by: LKP project <lkp@linux.intel.com>
Reported-by: Xie ChanglongX <changlongx.xie@intel.com>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-02 15:31:28 +02:00
..
acpica ACPICA: Update predefined info table for _MLS method 2013-01-25 13:30:48 +01:00
apei ACPI / APEI: fix error status check condition for CPER 2013-03-27 00:05:46 +01:00
ac.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
acpi_i2c.c ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() 2013-04-02 15:30:41 +02:00
acpi_ipmi.c
acpi_memhotplug.c memory-hotplug: remove sysfs file of node 2013-02-23 17:50:13 -08:00
acpi_pad.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
acpi_platform.c ACPI / platform: Use struct acpi_scan_handler for creating devices 2013-01-30 14:27:40 +01:00
battery.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
bgrt.c efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00
blacklist.c acpi: delete module.h include from files explicitly not needing it 2011-10-31 19:30:33 -04:00
bus.c ACPI / PM: Move device power management functions to device_pm.c 2013-01-19 22:09:22 +01:00
button.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
cm_sbs.c
container.c ACPI / hotplug: Fix concurrency issues and memory leaks 2013-02-13 14:36:47 +01:00
csrt.c ACPI: add support for CSRT table 2013-01-19 22:16:21 +01:00
custom_method.c The sweeping change is to make add_taint() explicitly indicate whether to disable 2013-02-25 15:41:43 -08:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
device_pm.c Merge branch 'acpi-scan' 2013-02-11 13:20:02 +01:00
dock.c ACPI / hotplug: Fix concurrency issues and memory leaks 2013-02-13 14:36:47 +01:00
ec.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
ec_sys.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
glue.c ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type 2013-03-04 14:23:40 +01:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h ACPI and power management fixes for 3.9-rc1 2013-02-25 21:25:17 -08:00
Kconfig Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-27 16:16:39 -08:00
Makefile ACPI: add support for CSRT table 2013-01-19 22:16:21 +01:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
pci_irq.c PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers 2013-02-16 11:58:34 -07:00
pci_link.c ACPI / PCI: Make PCI IRQ link driver use struct acpi_scan_handler 2013-01-30 14:27:37 +01:00
pci_root.c PCI / ACPI: hold acpi_scan_lock during root bus hotplug 2013-03-27 00:06:07 +01:00
pci_slot.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
power.c ACPI / PM: Take unusual configurations of power resources into account 2013-02-23 23:15:21 +01:00
proc.c ACPI / PM: Fix /proc/acpi/wakeup for devices w/o bus or parent 2013-01-27 21:40:11 +01:00
processor_core.c ACPI / processor: Remove redundant NULL check before kfree 2013-03-04 14:23:39 +01:00
processor_driver.c ACPI / porocessor: Beautify code, pr->id is u32 which is never < 0 2013-03-04 14:23:39 +01:00
processor_idle.c cpuidle / ACPI: recover percpu ACPI processor cstate 2013-04-02 15:31:28 +02:00
processor_perflib.c acpi: Export the acpi_processor_get_performance_info 2013-03-06 10:00:34 -05:00
processor_thermal.c ACPI: Do cpufreq clamping for throttling per package v2 2012-03-22 02:16:14 -04:00
processor_throttling.c ACPI throttling: fix endian bug in acpi_read_throttling_status() 2012-03-30 16:06:12 -04:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI: remove unnecessary INIT_LIST_HEAD 2012-11-27 13:49:36 +01:00
sbs.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.h
scan.c ACPI and power management fixes for 3.9-rc1 2013-02-25 21:25:17 -08:00
sleep.c ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M 2013-03-27 00:04:53 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPI sysfs: remove unnecessary newline from exception 2013-01-26 00:34:21 +01:00
tables.c ACPICA: Cleanup table handler naming conflicts. 2013-01-11 13:10:16 +01:00
thermal.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
utils.c ACPI: Add acpi_handle_<level>() interfaces 2012-11-21 23:20:22 +01:00
video.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
video_detect.c ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist 2012-11-30 13:02:50 +01:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00