ACPI patches for 2.6.23-rc2
Len Brown
reviewerPATCH 1/1 ACPI patches for 2.6.23-rc2
Hi Linus,
please pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release
This will update the files shown below.
thanks!
-Len
ps. individual patches are available on [email protected]
and a consolidated plain patch is available here:
ftp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/2.6.23/acpi-release-20070126-2.6.23-rc2.diff.gz
Documentation/kernel-parameters.txt | 22 ++ Documentation/thinkpad-acpi.txt | 4 arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 41 +--- drivers/acpi/asus_acpi.c | 1 drivers/acpi/battery.c | 47 +---- drivers/acpi/bay.c | 2 drivers/acpi/dock.c | 6 drivers/acpi/ec.c | 113 +++++------- drivers/acpi/event.c | 2 drivers/acpi/processor_idle.c | 14 + drivers/acpi/processor_perflib.c | 6 drivers/acpi/sbs.c | 6 drivers/acpi/tables/tbxface.c | 23 ++ drivers/acpi/thermal.c | 143 ++++++++++++++-- drivers/char/sonypi.c | 7 drivers/misc/Kconfig | 22 +- drivers/misc/sony-laptop.c | 7 drivers/misc/thinkpad_acpi.c | 10 - drivers/misc/thinkpad_acpi.h | 2 include/acpi/processor.h | 2 20 files changed, 311 insertions(+), 169 deletions(-)
through these commits:
Adrian Bunk (4):
sony-laptop: sony_nc_ids[] can become static.
ACPI: EC: acpi_ec_remove(): fix use-after-free
ACPI: sbs: remove dead code
ACPI: static
Alexey Starikovskiy (5):
ACPI: EC: Remove noisy debug printk fron EC driver.
ACPI: Battery: Synchronize battery operations.
ACPI: EC: If ECDT is not found, look up EC in DSDT.
ACPI: EC: Switch from boot_ec as soon as we find its desc in DSDT. ACPI EC: remove potential deadlock from EC
Eugene Teo (1):
sonypi: fix ids member of struct acpi_driver
Fenghua Yu (1):
acpi-cpufreq: Fix some x86/x86-64 acpi-cpufreq driver issues
Henrique de Moraes Holschuh (3):
ACPI: thinkpad-acpi: fix the module init failure path
ACPI: thinkpad-acpi: change thinkpad-acpi input default and kconfig help
ACPI: thinkpad-acpi: fix sysfs paths in documentation
Holger Macht (1):
ACPI: dock: Send key=value pair instead of plain value
Jesper Juhl (1):
asus_acpi: fix possible double free (found by Coverity)
Len Brown (8):
ACPI: add "acpi_no_auto_ssdt" bootparam
ACPI: EC: fix build warning
ACPI: thermal: create "thermal.off=1" to disable ACPI thermal support
ACPI: thermal: expose "thermal.tzp=" to set global polling frequency
ACPI: thermal: create "thermal.psv=" to override passive trip points
ACPI: thermal: create "thermal.nocrt" to disable critical actions
ACPI: thermal: create "thermal.act=" to disable or override active trip point
ACPI: thermal: add DMI hooks to handle AOpen's broken Award BIOS
Mattia Dongili (1):
sony-laptop: restore the last user requested brightness level on resume.
Meelis Roos (1):
ACPI: EC: fix run-together printk lines
Stephan Berberig (1):
ACPI: bay: send envp with uevent - fix
Venki Pallipadi (1):
ACPI: fix "Time Problems with 2.6.23-rc1-gf695baf2"
with this log:
commit 4e54e9f4423a86aa21b70cb9d339cb09f275188f
Merge: 27196c3... bc90a01...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:21:22 2007 -0400
Pull sbs into release branch
commit 27196c30db1ed4ab09c2071149b3324a1a53cfb9
Merge: ad17b20... 5010929...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:21:08 2007 -0400
Pull processor into release branch
commit ad17b209dca860a570e4ca75312c9f4d32672402
Merge: d88da66... e13d874...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:20:59 2007 -0400
Pull fluff into release branch
commit d88da66f9397f06f3a7b4e5148bd5e71cb9d7952
Merge: 6712a4f... 199e9e7...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:20:41 2007 -0400
Pull ec into release branch
commit 6712a4fbb14a466d259e53a5314d8011ecab3d7b
Merge: d8dd3cb... 66b5682...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:20:33 2007 -0400
Pull dock-bay into release branch
commit d8dd3cbcf1b30c315a28f65cb719bb2d7105a317
Merge: fc0dc4d... 0b5bfa1...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:19:23 2007 -0400
Pull bugzilla-8842 into release branch
commit fc0dc4d3aa9c73e275accf2966e0bdf16bff45f1
Merge: 53fdc51... 3bd92ba...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:18:11 2007 -0400
Pull bugzilla-8768 into release branch
commit 53fdc5185c994ad6def3729a905ac4a47c477c9d
Merge: 3b6919e... 67effe8...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:17:59 2007 -0400
Pull bugzilla-3774 into release branch
commit 3b6919e536865703a0d5c823f5a34c86cedd07cf
Merge: 3864e8c... de47b69... f7b88cc... 9de1cc4...
Author: Len Brown <[email protected]>
Date: Sun Aug 12 00:17:12 2007 -0400
pull asus sony thinkpad into release branch
commit 0b5bfa1cbefdc6e4c60f30ed545389b5ffe0f75f
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:13:02 2007 -0400
ACPI: thermal: add DMI hooks to handle AOpen's broken Award BIOS
Use DMI to:
1. enable polling (BIOS thermal events are broken)
2. disable active trip points (BIOS fan control is broken)
3. disable passive trip point (BIOS hard-codes it too low)
The actual temperature reading does work,
and with the aid of polling, the critical
trip point should work too.
http://bugzilla.kernel.org/show_bug.cgi?id=8842
commit f8707ec9643769957065405b5090e4aa64fd8214
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:12:54 2007 -0400
ACPI: thermal: create "thermal.act=" to disable or override active trip point
thermal.act=-1 disables all active trip points in all ACPI thermal zones.
thermal.act=C, where C > 0, overrides all lowest temperature active trip points in all thermal zones to C degrees Celsius. Raising this trip-point may allow you to keep your system silent up to a higher temperature. However, it will not allow you to raise the lowest temperature trip point above the next higher trip point (if there is one). Lowering this trip point may kick in the fan sooner.
Note that overriding this trip-point will disable any BIOS attempts to implement hysteresis around the lowest temperature trip point. This may result in the fan starting and stopping frequently if temperature frequently crosses C.
WARNING: raising trip points above the manufacturer's defaults may cause the system to run at higher temperature and shorten its life.
commit f54871456162aff557d57bec51639b1288d4a84b
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:12:44 2007 -0400
ACPI: thermal: create "thermal.nocrt" to disable critical actions
thermal.nocrt=1 disables actions on _CRT and _HOT ACPI thermal zone trip-points. They will be marked as <disabled> in /proc/acpi/thermal_zone/*/trip_points.
There are two cases where this option is used:
1. Debugging a hot system crossing valid trip point.
If your system fan is spinning at full speed,
be sure that the vent is not clogged with dust.
Many laptops have very fine thermal fins that are easily blocked.
Check that the processor fan-sink is properly seated, has the proper thermal grease, and is really spinning.
Check for fan related options in BIOS SETUP. Sometimes there is a performance vs quiet option. Defaults are generally the most conservative.
If your fan is not spinning, yet /proc/acpi/fan/ has files in it, please file a Linux/ACPI bug.
WARNING: you risk shortening the lifetime of your hardware if you use this parameter on a hot system. Note that this refers to all system components, including the disk drive.
2. Working around a cool system crossing critical trip point due to erroneous temperature reading.
Try again with CONFIG_HWMON=n
There is known potential for conflict between the the hwmon sub-system and the ACPI BIOS. If this fixes it, notify [email protected] and [email protected]
Otherwise, file a Linux/ACPI bug, or notify just [email protected].
commit a70cdc5200b0eb9fc3ef64efb29baac9b2cf2431
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:12:35 2007 -0400
ACPI: thermal: create "thermal.psv=" to override passive trip points
"thermal.psv=-1" disables passive trip points
for all ACPI thermal zones.
"thermal.psv=C", where 'C' is degrees Celsius, overrides all existing passive trip points for all ACPI thermal zones.
thermal.psv is checked at module load time,
and in response to trip-point change events.
Note that if the system does not deliver thermal zone temperature change events near the new trip-point, then it will not be noticed. To force your custom trip point to be noticed, you may need to enable polling:
eg. thermal.tzp=3000 invokes polling every 5 minutes.
Note that once passive thermal throttling is invoked, it has its own internal Thermal Sampling Period (_TSP), that is unrelated to _TZP.
WARNING: disabling or raising a thermal trip point may result in increased running temperature and shorter hardware lifetime on some systems.
commit 730ff34de766a6fddee25ac1c32bc49c1a2fd758
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:12:26 2007 -0400
ACPI: thermal: expose "thermal.tzp=" to set global polling frequency
Thermal Zone Polling frequency (_TZP) is an optional ACPI object recommending the rate that the OS should poll the associated thermal zone.
If _TZP is 0, no polling should be used.
If _TZP is non-zero, then the platform recommends that the OS poll the thermal zone at the specified rate. The minimum period is 30 seconds.
The maximum period is 5 minutes.
(note _TZP and thermal.tzp units are in deci-seconds,
so _TZP = 300 corresponds to 30 seconds)
If _TZP is not present, ACPI 3.0b recommends that the thermal zone be polled at an "OS provided default frequency".
However, common industry practice is:
1. The BIOS never specifies any _TZP
2. High volume OS's from this century never poll any thermal zones
Ie. The OS depends on the platform's ability to provoke thermal events when necessary, and the "OS provided default frequency" is "never":-)
There is a proposal that ACPI 4.0 be updated to reflect common industry practice -- ie. no _TZP, no polling.
The Linux kernel already follows this practice -- thermal zones are not polled unless _TZP is present and non-zero.
But thermal zone polling is useful as a workaround for systems which have ACPI thermal control, but have an issue preventing thermal events. Indeed, some Linux distributions still set a non-zero thermal polling frequency for this reason.
But rather than ask the user to write a polling frequency into all the /proc/acpi/thermal_zone/*/polling_frequency files, here we simply document and expose the already existing module parameter to do the same at system level, to simplify debugging those broken platforms.
Note that thermal.tzp is a module-load time parameter only.
commit 72b33ef8bb1ac7f6c5a16d23304ab25ddc73d93d
Author: Len Brown <[email protected]> Date: Sun Aug 12 00:12:17 2007 -0400
ACPI: thermal: create "thermal.off=1" to disable ACPI thermal support
"thermal.off=1" disables all ACPI thermal support at boot time.
CONFIG_ACPI_THERMAL=n can do this at build time. "# rmmod thermal" can do this at run time, as long as thermal is built as a module.
WARNING: On some systems, disabling ACPI thermal support will cause the system to run hotter and reduce the lifetime of the hardware.
commit 9de1cc4a1724adda84101912e8ba51460f110044
Author: Henrique de Moraes Holschuh <[email protected]> Date: Sat Aug 11 00:08:33 2007 -0300
ACPI: thinkpad-acpi: fix sysfs paths in documentation
The documentation used "thinkpad-acpi" to refer to the directories in sysfs, while it should have been using "thinkpad_acpi". Thanks to Hugh Dickins for the error report.
I wish I could just call the module and everything else by the proper name with the "-", instead of using these ugly translations to "_".
commit e13d87473284131a7ead8121d5d29345101f68a4
Author: Adrian Bunk <[email protected]> Date: Fri Aug 10 13:45:18 2007 -0700
ACPI: static
Make the needlessly global "acpi_event_seqnum" static.
commit 199e9e7d1106686a85ee9fdf6a824051aa82682e
Author: Alexey Starikovskiy <[email protected]> Date: Fri Aug 10 13:45:18 2007 -0700
ACPI EC: remove potential deadlock from EC
commit 66b568218ab73be161dc109b913e6fa7dda44e16
Author: Holger Macht <[email protected]> Date: Fri Aug 10 13:10:32 2007 -0700
ACPI: dock: Send key=value pair instead of plain value
Send key=value pair along with the uevent instead of a plain value so that userspace (udev) can handle it like common environment variables.
commit 7aa763cb56b6efdfa5c1b83c336abf1be914afcd
Author: Stephan Berberig <[email protected]> Date: Fri Aug 10 13:10:31 2007 -0700
ACPI: bay: send envp with uevent - fix
There must not be a new-line character in the uevent. Otherwise, udev gets confused. Thanks to Kay Sievers for pointing it out.
commit 501092929ccb8a1d2eb0ed700e38df4ae0de7108
Author: Fenghua Yu <[email protected]> Date: Tue Aug 7 18:40:30 2007 -0400
acpi-cpufreq: Fix some x86/x86-64 acpi-cpufreq driver issues
This patch addresses some issues in x86/x86-64 acpi-cpufreq driver:
1. Current memory allocation for acpi_perf_data is actually open-coded alloc_percpu(). The patch defines and handles acpi_perf_data as percpu data. The code will be cleaner and easier to be maintained with this change.
2. Won't load driver in acpi_cpufreq_early_init() failure case.
3. Add __init for acpi_cpufreq_early_init().
commit ed3110efb538d7acbf635095c1382118f7414f75
Author: Venki Pallipadi <[email protected]> Date: Tue Jul 31 12:04:31 2007 -0700
ACPI: fix "Time Problems with 2.6.23-rc1-gf695baf2"
Enable C3 without bm control only for CST based C3.
commit 5f70bf7510e5e51b0bac32b1470c92e9332452a4
Author: Henrique de Moraes Holschuh <[email protected]> Date: Sun Aug 5 15:20:45 2007 -0300
ACPI: thinkpad-acpi: change thinkpad-acpi input default and kconfig help
The current kconfig help text was misleading users. Also, the default for an input-layer-optimized support caused way too many problems without up-to-date userspace in place.
So, rework the help text, and change the default to N. Note that distributions are supposed to enable this option as soon as they update HAL to a version that handles the thinkpad-acpi new input layer interface.
commit 0a5245099819b0ae0a8e985f54909ba8414faba5
Author: Meelis Roos <[email protected]> Date: Thu Jul 26 12:56:55 2007 +0300
ACPI: EC: fix run-together printk lines
commit bc90a0105dea7b773e99ae7abde56a6930081ddb
Author: Adrian Bunk <[email protected]> Date: Mon Jul 9 11:33:15 2007 -0700
ACPI: sbs: remove dead code
Remove dead code spotted by the Coverity checker.
commit 07ddf768d860bee7bd6581b7af3ce1009dbd05d0
Author: Adrian Bunk <[email protected]> Date: Sun Jul 29 17:00:37 2007 +0200
ACPI: EC: acpi_ec_remove(): fix use-after-free
This patch fixes an obvious use-after-free introduced by commit 837012ede14a8fc088be3682c964da7fc6af026b.
Spotted by the Coverity checker.
commit 7c010de7506954e973abfab5c5999c5a97f7a73e
Author: Alexey Starikovskiy <[email protected]> Date: Fri Aug 3 17:57:53 2007 -0400
ACPI: EC: Switch from boot_ec as soon as we find its desc in DSDT.
Some ASUS laptops fail to use boot time EC
and need to eventually switch to one described in DSDT.
http://bugzilla.kernel.org/show_bug.cgi?id=8709
commit 52fe4bdf40bc07498c5f7935551774e8f8458190
Author: Len Brown <[email protected]> Date: Fri Aug 3 17:55:53 2007 -0400
ACPI: EC: fix build warning
drivers/acpi/ec.c:657: warning: ‘acpi_ec_register_query_methods’ defined but not used
commit cd8c93a4e04dce8f00d1ef3a476aac8bd65ae40b
Author: Alexey Starikovskiy <[email protected]> Date: Fri Aug 3 17:52:48 2007 -0400
ACPI: EC: If ECDT is not found, look up EC in DSDT.
Some ASUS laptops access EC space from device _INI methods, but do not provide ECDT for early EC setup. In order to make them function properly, there is a need to find EC is DSDT before any _INI is called.
Similar functionality was turned on by acpi_fake_ecdt=1 command line before. Now it is on all the time.
http://bugzilla.kernel.org/show_bug.cgi?id=8598
commit 3bd92ba19a89fe61ebf58804f9c8675372f50c1c
Author: Alexey Starikovskiy <[email protected]> Date: Fri Aug 3 17:38:20 2007 -0400
ACPI: Battery: Synchronize battery operations.
http://bugzilla.kernel.org/show_bug.cgi?id=8768
commit f1cd1fe61b96e4312312d42c0a9784dfab12e007
Author: Alexey Starikovskiy <[email protected]> Date: Fri Aug 3 17:28:17 2007 -0400
ACPI: EC: Remove noisy debug printk fron EC driver.
ACPI: EC: Handler for query 0x57 is not found!
commit de47b69c7b7be46b0848b2c4f8e23c478cd68690
Author: Jesper Juhl <[email protected]> Date: Sun Jul 29 00:45:59 2007 +0200
asus_acpi: fix possible double free (found by Coverity)
commit ac36393de6034be7266264a435360e7628849005
Author: Henrique de Moraes Holschuh <[email protected]> Date: Fri Jul 27 17:04:40 2007 -0300
ACPI: thinkpad-acpi: fix the module init failure path
Thomas Renninger reports that if one tries to load thinkpad-acpi in a non-thinkpad, one gets:
Call Trace:
[<ffffffff802fa57d>] kref_get+0x2f/0x36
[<ffffffff802f97f7>] kobject_get+0x12/0x17 [<ffffffff8036dfd7>] get_driver+0x14/0x1a [<ffffffff8036dfee>] driver_remove_file+0x11/0x32 [<ffffffff8823b9be>] :thinkpad_acpi:thinkpad_acpi_module_exit+0xa8/0xfc [<ffffffff8824b8a0>] :thinkpad_acpi:thinkpad_acpi_module_init+0x74a/0x776 [<ffffffff8024f968>] __link_module+0x0/0x25 [<ffffffff80252269>] sys_init_module+0x162c/0x178f [<ffffffff8020bc2e>] system_call+0x7e/0x83
So, track if the platform driver and its driver attributes were registered, and only deallocate them in that case.
This patch is based on Thomas Renninger's patch for the issue.
commit f7b88ccb63188e775fe02e746c39ed177741cfc7
Author: Eugene Teo <[email protected]> Date: Sat Aug 4 00:22:32 2007 +0900
sonypi: fix ids member of struct acpi_driver
ids member of struct acpi_driver is of type struct acpi_device_id, not a character array.
commit 11604ecf6fb9c2ab0152fbddb7ea2724438ef76e
Author: Adrian Bunk <[email protected]> Date: Sat Aug 4 00:22:31 2007 +0900
sony-laptop: sony_nc_ids[] can become static.
commit e84a02ba0b33a97a8486f3248fd45f50b1a1c014
Author: Mattia Dongili <[email protected]> Date: Sat Aug 4 00:22:30 2007 +0900
sony-laptop: restore the last user requested brightness level on resume.
commit 67effe8fff32f60bdf51cba484766ba6003005bb
Author: Len Brown <[email protected]> Date: Thu Jul 26 00:50:06 2007 -0400
ACPI: add "acpi_no_auto_ssdt" bootparam
"acpi_no_auto_ssdt" prevents Linux from automatically loading all the SSDTs listed in the RSDT/XSDT.
This is needed for debugging. In particular,
it allows a DSDT override to optionally be a DSDT+SSDT override.
http://bugzilla.kernel.org/show_bug.cgi?id=3774
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