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path: root/drivers/acpi
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2006-06-16Pull bugzilla-5000 into release branchLen Brown4-6/+174
2006-06-16Pull bugzilla-5764 into release branchLen Brown1-22/+29
2006-06-16Pull ibm_acpi into release branchLen Brown1-0/+70
2006-06-16Pull sem2mutex into release branchLen Brown3-24/+25
2006-06-16Pull trivial2 into release branchLen Brown4-6/+8
2006-06-16Pull video into release branchLen Brown1-8/+13
2006-06-16Pull acpi_bus_register_driver into release branchLen Brown2-26/+26
Conflicts: drivers/acpi/asus_acpi.c drivers/acpi/scan.c
2006-06-15Pull bugzilla-5452 into release branchLen Brown1-2/+2
2006-06-15Pull trivial into release branchLen Brown3-2/+6
2006-06-15Pull trivial1 into release branchLen Brown4-36/+23
2006-06-15Pull motherboard into release branchLen Brown1-28/+33
2006-06-15Pull Kconfig into release branchLen Brown1-2/+1
2006-06-15Pull ec into release branchLen Brown1-10/+6
2006-06-15Pull cpu-hotplug into release branchLen Brown1-4/+1
2006-06-15Pull address_range into release branchLen Brown1-7/+5
2006-06-15Pull acpica into release branchLen Brown112-3481/+3567
2006-06-14ACPI: ACPICA 20060608Bob Moore13-87/+96
Converted the locking mutex used for the ACPI hardware to a spinlock. This change should eliminate all problems caused by attempting to acquire a semaphore at interrupt level, and it means that all ACPICA external interfaces that directly access the ACPI hardware can be safely called from interrupt level. Fixed a regression introduced in 20060526 where the ACPI device initialization could be prematurely aborted with an AE_NOT_FOUND if a device did not have an optional _INI method. Fixed an IndexField issue where a write to the Data Register should be limited in size to the AccessSize (width) of the IndexField itself. (BZ 433, Fiodor Suietov) Fixed problem reports (Valery Podrezov) integrated: - Allow store of ThermalZone objects to Debug object. http://bugzilla.kernel.org/show_bug.cgi?id=5369 http://bugzilla.kernel.org/show_bug.cgi?id=5370 Fixed problem reports (Fiodor Suietov) integrated: - acpi_get_table_header() doesn't handle multiple instances correctly (BZ 364) Removed four global mutexes that were obsolete and were no longer being used. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14ACPI: ACPICA 20060526Bob Moore31-987/+905
Restructured, flattened, and simplified the internal interfaces for namespace object evaluation - resulting in smaller code, less CPU stack use, and fewer interfaces. (With assistance from Mikhail Kouzmich) Fixed a problem with the CopyObject operator where the first parameter was not typed correctly for the parser, interpreter, compiler, and disassembler. Caused various errors and unexpected behavior. Fixed a problem where a ShiftLeft or ShiftRight of more than 64 bits produced incorrect results with some C compilers. Since the behavior of C compilers when the shift value is larger than the datatype width is apparently not well defined, the interpreter now detects this condition and simply returns zero as expected in all such cases. (BZ 395) Fixed problem reports (Valery Podrezov) integrated: - Update String-to-Integer conversion to match ACPI 3.0A spec http://bugzilla.kernel.org/show_bug.cgi?id=5329 Allow interpreter to handle nested method declarations http://bugzilla.kernel.org/show_bug.cgi?id=5361 Fixed problem reports (Fiodor Suietov) integrated: - acpi_terminate() doesn't free debug memory allocation list objects (BZ 355) - After Core Subsystem shutdown, acpi_subsystem_status() returns AE_OK (BZ 356) - acpi_os_unmap_memory() for RSDP can be invoked inconsistently (BZ 357) - Resource Manager should return AE_TYPE for non-device objects (BZ 358) - Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) - Use acpi_os_free() instead of ACPI_FREE in acpi_rs_set_srs_method_data (BZ 360) - Incomplete cleanup branch in acpi_ps_parse_aml (BZ 361) - Incomplete cleanup branch in acpi_ds_delete_walk_state (BZ 362) - acpi_get_table_header returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) - Status of the Global Initialization Handler call not used (BZ 366) - Incorrect object parameter to Global Initialization Handler (BZ 367) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14ACPI: execute Notify() handlers on new threadAlexey Starikovskiy3-32/+56
http://bugzilla.kernel.org/show_bug.cgi?id=5534 Thanks to Peter Wainwright for isolating the issue. Thanks to Andi Kleen and Bob Moore for feedback. Thanks to Richard Mace and others for testing. Updates by Konstantin Karasyov. Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14ACPI: ACPICA 20060512Bob Moore16-63/+107
Replaced the acpi_os_queue_for_execution() with a new interface named acpi_os_execute(). The major difference is that the new interface does not have a Priority parameter, this appeared to be useless and has been replaced by a Type parameter. The Type tells the OS what type of execution is being requested, such as global lock handler, notify handler, GPE handler, etc. This allows the host to queue and execute the request as appropriate for the request type, possibly using different work queues and different priorities for the various request types. This enables fixes for multithreading deadlock problems such as http://bugzilla.kernel.org/show_bug.cgi?id=5534 (Alexey Starikovskiy and Bob Moore) Fixed a possible memory leak associated with the support for the so-called "implicit return" ACPI extension. Reported by FreeBSD (Fiodor Suietov) http://bugzilla.kernel.org/show_bug.cgi?id=6514 Fixed a problem with the Load() operator where a table load from an operation region could overwrite an internal table buffer by up to 7 bytes and cause alignment faults on IPF systems. (With assistance from Luming Yu) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14ACPI: ACPICA 20060421Bob Moore104-923/+1144
Removed a device initialization optimization introduced in 20051216 where the _STA method was not run unless an _INI was also present for the same device. This optimization could cause problems because it could allow _INI methods to be run within a not-present device subtree (If a not-present device had no _INI, _STA would not be run, the not-present status would not be discovered, and the children of the device would be incorrectly traversed.) Implemented a new _STA optimization where namespace subtrees that do not contain _INI are identified and ignored during device initialization. Selectively running _STA can significantly improve boot time on large machines (with assistance from Len Brown.) Implemented support for the device initialization case where the returned _STA flags indicate a device not-present but functioning. In this case, _INI is not run, but the device children are examined for presence, as per the ACPI specification. Implemented an additional change to the IndexField support in order to conform to MS behavior. The value written to the Index Register is not simply a byte offset, it is a byte offset in units of the access width of the parent Index Field. (Fiodor Suietov) Defined and deployed a new OSL interface, acpi_os_validate_address(). This interface is called during the creation of all AML operation regions, and allows the host OS to exert control over what addresses it will allow the AML code to access. Operation Regions whose addresses are disallowed will cause a runtime exception when they are actually accessed (will not affect or abort table loading.) Defined and deployed a new OSL interface, acpi_os_validate_interface(). This interface allows the host OS to match the various "optional" interface/behavior strings for the _OSI predefined control method as appropriate (with assistance from Bjorn Helgaas.) Restructured and corrected various problems in the exception handling code paths within DsCallControlMethod and DsTerminateControlMethod in dsmethod (with assistance from Takayoshi Kochi.) Modified the Linux source converter to ignore quoted string literals while converting identifiers from mixed to lower case. This will correct problems with the disassembler and other areas where such strings must not be modified. The ACPI_FUNCTION_* macros no longer require quotes around the function name. This allows the Linux source converter to convert the names, now that the converter ignores quoted strings. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14ACPI: ACPICA 20060331Bob Moore26-133/+329
Implemented header file support for the following additional ACPI tables: ASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, all current and known ACPI tables are now defined in the ACPICA headers and are available for use by device drivers and other software. Implemented support to allow tables that contain ACPI names with invalid characters to be loaded. Previously, this would cause the table load to fail, but since there are several known cases of such tables on existing machines, this change was made to enable ACPI support for them. Also, this matches the behavior of the Microsoft ACPI implementation. https://bugzilla.novell.com/show_bug.cgi?id=147621 Fixed a couple regressions introduced during the memory optimization in the 20060317 release. The namespace node definition required additional reorganization and an internal datatype that had been changed to 8-bit was restored to 32-bit. (Valery Podrezov) Fixed a problem where a null pointer passed to acpi_ut_delete_generic_state() could be passed through to acpi_os_release_object which is unexpected. Such null pointers are now trapped and ignored, matching the behavior of the previous implementation before the deployment of acpi_os_release_object(). (Valery Podrezov, Fiodor Suietov) Fixed a memory mapping leak during the deletion of a SystemMemory operation region where a cached memory mapping was not deleted. This became a noticeable problem for operation regions that are defined within frequently used control methods. (Dana Meyers) Reorganized the ACPI table header files into two main files: one for the ACPI tables consumed by the ACPICA core, and another for the miscellaneous ACPI tables that are consumed by the drivers and other software. The various FADT definitions were merged into one common section and three different tables (ACPI 1.0, 1.0+, and 2.0) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14[ACPI] ACPICA 20060317Bob Moore25-864/+245
Implemented the use of a cache object for all internal namespace nodes. Since there are about 1000 static nodes in a typical system, this will decrease memory use for cache implementations that minimize per-allocation overhead (such as a slab allocator.) Removed the reference count mechanism for internal namespace nodes, since it was deemed unnecessary. This reduces the size of each namespace node by about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, and 32 bytes for the 64-bit case. Optimized several internal data structures to reduce object size on 64-bit platforms by packing data within the 64-bit alignment. This includes the frequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static instances corresponding to the namespace objects. Added two new strings for the predefined _OSI method: "Windows 2001.1 SP1" and "Windows 2006". Split the allocation tracking mechanism out to a separate file, from utalloc.c to uttrack.c. This mechanism appears to be only useful for application-level code. Kernels may wish to not include uttrack.c in distributions. Removed all remnants of the obsolete ACPI_REPORT_* macros and the associated code. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING macros.) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-10[PATCH] powernow-k8 crash workaroundAndrew Morton1-1/+4
From: Andrew Morton <akpm@osdl.org> Work around the oops reported in http://bugzilla.kernel.org/show_bug.cgi?id=6478. Thanks to Ralf Hildebrandt <ralf.hildebrandt@charite.de> for testing and reporting. Acked-by: Dave Jones <davej@codemonkey.org.uk> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-02ACPI: Allow a WAN module enable/disable on a Thinkpad X60.Jeremy Fitzhardinge1-0/+70
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>
2006-05-19ACPI: replace spin_lock_irq with mutex for ec poll modeRich Townsend1-22/+29
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>
2006-05-15ACPI: create acpi_thermal_resume()Konstantin Karasyov1-0/+16
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>
2006-05-15ACPI: create acpi_fan_suspend()/acpi_fan_resume()Konstantin Karasyov2-6/+48
http://bugzilla.kernel.org/show_bug.cgi?id=5000 Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-15ACPI: pass pm_message_t from acpi_device_suspend() to root_suspend()Len Brown1-11/+3
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>
2006-05-15ACPI: create acpi_device_suspend()/acpi_device_resume()Patrick Mochel1-0/+118
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>
2006-05-15ACPI: fix potential memory leaks in driver/acpi/video.cYu, Luming1-8/+13
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>
2006-05-15ACPI: asus_acpi_init(): propagate correct return valueAndrew Morton1-1/+1
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>
2006-05-14ACPI: apply "__read_mostly" to processor_idle.c loop module parameters and ↵Andreas Mohr1-4/+4
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>
2006-05-14ACPI: fix memory leak in acpi_thermal_add() error pathVasily Averin1-1/+1
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>
2006-05-14ACPI: fix potential memory leak in acpi_evaluate_integer() error pathVasily Averin1-0/+2
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>
2006-05-14ACPI: acpi_bus_unregister_driver() returns voidBjorn Helgaas1-22/+10
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>
2006-05-14sem2mutex: acpi, acpi_link_lockIngo Molnar1-12/+13
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>
2006-05-14ACPI: delete unused acpi_bus_drivers_lockLen Brown1-1/+0
acpi_bus_drivers is protected by acpi_device_lock Signed-off-by: Len Brown <len.brown@intel.com>
2006-05-14sem2mutex: drivers/acpi/processor_perflib.cArjan van de Ven1-11/+12
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>
2006-04-09[PATCH] x86_64: Support memory hotadd without sparsememAndi Kleen1-1/+1
Memory hotadd doesn't need SPARSEMEM, but can be handled by just preallocating mem_maps. This only needs some untangling of ifdefs to enable the necessary code even without SPARSEMEM. Originally from Keith Mannthey, hacked by AK. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-04ACPI: Don't print internal BIOS names of wakeup devicesBjorn Helgaas1-3/+0
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>
2006-04-02ACPI: Allow hot-add of ejected processorAshok Raj1-4/+1
acpi_eject_store() didn't trim processors, causing subsequent hot-add to fail. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-02ACPI: EC acpi-ecdt-uid-hackJiri Slaby1-10/+6
On some boxes ecdt uid may be equal to 0, so do not test for uids equality, so that fake handler will be unconditionally removed to allow loading the real one. See http://bugzilla.kernel.org/show_bug.cgi?id=6111 Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Luming Yu <luming.yu@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-02ACPI: build fix for u8 cpu_indexAshok Raj1-5/+5
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>
2006-04-02ACPI: remove __init/__exit from Asus .add()/.remove() methods Bjorn Helgaas1-5/+5
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>
2006-04-02ACPI: fix memory hotplug range length handlingBjorn Helgaas1-7/+5
Address space descriptors contain _MIN, _MAX, and _LEN. _MIN and _MAX are the bounds within which the region can be moved (this is clarified in Table 6-38 of the ACPI 3.0 spec). We should use _LEN to determine the size of the region, not _MAX - _MIN + 1. 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>
2006-04-02ACPI: simplify scan.c codingBjorn Helgaas1-23/+13
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>
2006-04-02ACPI: update asus_acpi driver registration to unload on failureBjorn Helgaas1-1/+17
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>
2006-04-02ACPI: make acpi_bus_register_driver() return success/failure, not device count Bjorn Helgaas1-11/+5
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>
2006-04-02ACPI: Display "ACPI" to motherboard resources in /proc/io{mem,port} Bjorn Helgaas1-11/+11
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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