| Commit message (Collapse) | Author | Age | Files | Lines |
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As part of the i386 conversion to the generic timekeeping infrastructure, this
introduces a new tsc.c file. The code in this file replaces the TSC
initialization, management and access code currently in timer_tsc.c (which
will be removed) that we want to preserve.
The code also introduces the following functionality:
o tsc_khz: like cpu_khz but stores the TSC frequency on systems that do not
change TSC frequency w/ CPU frequency
o check/mark_tsc_unstable: accessor/modifier flag for TSC timekeeping
usability
o minor cleanups to calibration math.
This patch also includes a one line __cpuinitdata fix from Zwane Mwaikambo.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Prevent possible null dereference due to misplaced ;
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (65 commits)
ACPI: suppress power button event on S3 resume
ACPI: resolve merge conflict between sem2mutex and processor_perflib.c
ACPI: use for_each_possible_cpu() instead of for_each_cpu()
ACPI: delete newly added debugging macros in processor_perflib.c
ACPI: UP build fix for bugzilla-5737
Enable P-state software coordination via _PDC
P-state software coordination for speedstep-centrino
P-state software coordination for acpi-cpufreq
P-state software coordination for ACPI core
ACPI: create acpi_thermal_resume()
ACPI: create acpi_fan_suspend()/acpi_fan_resume()
ACPI: pass pm_message_t from acpi_device_suspend() to root_suspend()
ACPI: create acpi_device_suspend()/acpi_device_resume()
ACPI: replace spin_lock_irq with mutex for ec poll mode
ACPI: Allow a WAN module enable/disable on a Thinkpad X60.
sem2mutex: acpi, acpi_link_lock
ACPI: delete unused acpi_bus_drivers_lock
sem2mutex: drivers/acpi/processor_perflib.c
ACPI add ia64 exports to build acpi_memhotplug as a module
ACPI: asus_acpi_init(): propagate correct return value
...
Manual resolve of conflicts in:
arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
include/acpi/processor.h
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http://bugzilla.kernel.org/show_bug.cgi?id=6612
Note that this fix depends on a fix in ACPICA 20060608
to replace a semaphore with a spin-lock.
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: "Yu, Luming" <luming.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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Conflicts:
arch/x86_64/kernel/acpi/processor.c
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for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=5737
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=4364
Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=5000
Signed-off-by: Len Brown <len.brown@intel.com>
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in case we want to decode it for future use in acpi_op_suspend(..., state)
also, inline new 1-liner static function
http://bugzilla.kernel.org/show_bug.cgi?id=5000
Signed-off-by: Len Brown <len.brown@intel.com>
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updated and tested by Konstantin Karasyov
http://bugzilla.kernel.org/show_bug.cgi?id=5000
Signed-off-by: Patrick Mochel <patrick.mochel@intel.com>
Signed-off-by: Konstantin Karasyov <konstantin.karasyov @intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=5764
Signed-off-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The WAN (Sierra Wireless EV-DO) module is very similar to the
Bluetooth module. It appears on the USB bus when enabled. It can be
controlled via hot key, or directly via ACPI. This change enables
direct control via ACPI.
I have tested it on my Lenovo Thinkpad X60; I guess it will probably
work on other Thinkpad models which come with this module installed.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Ack'd by: Borislav Deianov <borislav@users.sf.net>
Signed-off-by: Len Brown <len.brown@intel.com>
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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acpi_bus_drivers is protected by acpi_device_lock
Signed-off-by: Len Brown <len.brown@intel.com>
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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friends
make pm_idle_save, nocst and bm_history __read_mostly
remove initializer from static 'first_run'.
Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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acpi_video_bus_get_one_device() and other functions in driver/acpi/video.c do
not release allocated memory on remove and on the error path.
Signed-off-by: "Yu, Luming" <luming.yu@intel.com>
Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Conflicts:
drivers/acpi/asus_acpi.c
drivers/acpi/scan.c
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Nobody looks at the return value, and this brings it into line with
pci_unregister_driver(), etc. Also removed validation of the driver
pointer passed in to register and unregister. More consistent, and we'll
find bugs faster if we fault rather than returning an error that's ignored.
Also makes internal functions acpi_device_unregister() and
acpi_driver_detach() void, since nobody uses their returns either.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Remove the assumption that acpi_bus_register_driver() returns the number of
devices claimed. Returning the count is unreliable because devices may be
hot-plugged in the future (admittedly not applicable for this driver).
Since the hardware for this driver is not hot-pluggable, determine whether the
hardware is present by noticing calls to the .add() method. It would be
better to probe the ACPI namespace for the ASUS HIDs, and load the driver only
when we find one, but ACPI doesn't support that yet.
I don't have an ASUS laptop to test on, but on my HP dl360, it does report the
appropriate error when attempting to load the module:
$ sudo insmod drivers/acpi/asus_acpi.ko
insmod: error inserting 'drivers/acpi/asus_acpi.ko': -1 No such device
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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acpi_bus_register_driver() should not return the number of devices claimed.
We're not asking to find devices, we're making a driver available to devices,
including hot-pluggable devices that may appear in the future.
I audited all callers of acpi_bus_register_driver(), and except asus_acpi.c
and sonypi.c (fixed in previous patches), all either ignore the return value
or test only for failure (<0).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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http://bugzilla.kernel.org/show_bug.cgi?id=5452
Signed-off-by: Len Brown <len.brown@intel.com>
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The Coverity checker spotted this bug in
acpi_video_device_lcd_query_levels().
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Coverity: #601
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Irwan Djajadi <irwan.djajadi@iname.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Internal BIOS names like these should be exposed
to the user as little as possible:
ACPI wakeup devices: C069 C0CE C1D1 C0DE C1D4
Eventually, the "wakeup" property of a device should be exported via the
device tree, not by a printk of an internal BIOS name. For the hard-core,
these are still available in /proc/acpi/wakeup_devices, just not
printed to dmesg.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Local apic entries are only 8 bits, but it seemed to not be caught with u8
return value result in the check
cpu_index >= NR_CPUS becomming always false.
drivers/acpi/processor_core.c: In function `acpi_processor_get_info':
drivers/acpi/processor_core.c:483: warning: comparison is always false due to limited range of data type
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Kenji Kaneshige <kaneshige.kenji@soft.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Even though the devices claimed by asus_acpi.c can not be hot-plugged, the
driver registration infrastructure allows the .add() and .remove() methods to
be called at any time while the driver is registered. So remove __init and
__exit from them.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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No functional changes; just remove leftover, unused "buffer" and simplify
control flow (no need to remember error values and goto the end, when we can
simply return the value directly).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add "ACPI" to motherboard resource allocation names, so people have a clue
about where to look. And remove some trailing spaces.
Changes these /proc/iomem entries from this:
ff5c1004-ff5c1007 : PM_TMR
ff5c1008-ff5c100b : PM1a_EVT_BLK
ff5c100c-ff5c100d : PM1a_CNT_BLK
ff5c1010-ff5c1013 : GPE0_BLK
ff5c1014-ff5c1017 : GPE1_BLK
to this:
ff5c1004-ff5c1007 : ACPI PM_TMR
ff5c1008-ff5c100b : ACPI PM1a_EVT_BLK
ff5c100c-ff5c100d : ACPI PM1a_CNT_BLK
ff5c1010-ff5c1013 : ACPI GPE0_BLK
ff5c1014-ff5c1017 : ACPI GPE1_BLK
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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ACPI supports fixed hardware (PM_TMR, GPE blocks, etc) in either I/O port
or MMIO space, but used to always request the regions from I/O space
because it didn't check the address_space_id.
Sample ACPI fixed hardware in MMIO space (HP rx2600), was incorrectly
reported in /proc/ioports, now reported in /proc/iomem:
ff5c1004-ff5c1007 : PM_TMR
ff5c1008-ff5c100b : PM1a_EVT_BLK
ff5c100c-ff5c100d : PM1a_CNT_BLK
ff5c1010-ff5c1013 : GPE0_BLK
ff5c1014-ff5c1017 : GPE1_BLK
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Otherwise, illegal configurations like X86_VOYAGER=y, PCI=y are
possible.
This patch also fixes the options select'ing ACPI to also select PCI.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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