aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi/system.c
Commit message (Collapse)AuthorAge
* ACPI: add /sys/firmware/acpi/interrupts/sci_not counterLen Brown2009-04-21
| | | | | | | This counter may prove useful in debugging some spurious interrupt issues seen in the field. Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'acpi-modparam' into releaseLen Brown2009-04-05
|\ | | | | | | | | | | | | Conflicts: drivers/acpi/Makefile Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: simplify module_param namespaceRusty Russell2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Rather than overriding MODULE_PARAM_PREFIX, build via acpi.o so KBUILD_MODNAME is set to "acpi". This is the logical way to do it, even though acpi cannot be a module due to these config options being bool. Those parts of ACPI which can be modular are not built into the acpi "module". Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'dynamic-ssdt' into releaseLen Brown2009-04-05
|\ \
| * | ACPI: introduce sysfs I/F for dynamic tablesZhang Rui2009-02-26
| |/ | | | | | | | | | | | | | | | | SSDT tables may be loaded at runtime. create sysfs I/F for these dynamic tables in /sys/firmware/acpi/tables/dynamic/. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* / ACPI: call acpi_system_init() explicitly rather than as initcallBjorn Helgaas2009-03-27
|/ | | | | | | | | | This patch makes acpi_init() call acpi_system_init() directly. Previously, both were subsys_initcalls. acpi_system_init() must happen after acpi_init(), and it's better to call it explicitly rather than rely on link ordering. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: New: acpi_get_gpe_device interfaceBob Moore2008-12-31
| | | | | | | | | | | | | This function maps an input GPE index to a GPE block device. Also Added acpi_current_gpe_count to track the current number of GPEs that are being managed by the ACPICA core (both FADT-based GPEs and the GPEs contained in GPE block devices.) Modify drivers/acpi/system.c to use these 2 new interfaces Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'ec' into releaseLen Brown2008-11-11
|\
| * ACPICA: Use spinlock for acpi_{en|dis}able_gpeAlexey Starikovskiy2008-11-11
| | | | | | | | | | | | | | | | | | | | Disabling gpe might interfere with gpe detection/handling, thus producing "interrupt not handled" errors. Ironically, disabling of GPE from interrupt context is already under spinlock, so only userspace needs to start using it. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'bugzilla-11539' into releaseLen Brown2008-11-11
|\ \
| * | ACPI: avoid empty file name in sysfsPeter Gruber2008-11-06
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit bc45b1d39a925b56796bebf8a397a0491489d85c acpi tables are allowed to have an empty signature and /sys/firmware/acpi/tables uses the signature as filename. Applications using naive recursion through /sys loop forever. A possible solution would be: (replacing the zero length filename with the string "NULL") http://bugzilla.kernel.org/show_bug.cgi?id=11539 Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* / ACPI: bugfix reporting of event handler statusZhang Rui2008-10-28
|/ | | | | | | | | | | | | | | | | | | | Introduce a new flag showing whether the event has an event handler/method. For all the GPEs and Fixed Events, 1. ACPI_EVENT_FLAG_HANDLE is cleared, it's an "invalid" ACPI event. 2. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_DISABLE are set, it's "disabled". 3. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_ENABLE are set, it's "enabled". 4. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_WAKE_ENABLE are set, it's "wake_enabled". Among other things, this prevents incorrect reporting of ACPI events as being "invalid" when it's really just (temporarily) "disabled". Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'linus' into testLen Brown2008-10-23
|\ | | | | | | | | | | | | | | | | | | | | | | Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
| * x86: sysfs: kill owner field from attributeParag Warudkar2008-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tejun's commit 7b595756ec1f49e0049a9e01a1298d53a7faaa15 made sysfs attribute->owner unnecessary. But the field was left in the structure to ease the merge. It's been over a year since that change and it is now time to start killing attribute->owner along with its users - one arch at a time! This patch is attempt #1 to get rid of attribute->owner only for CONFIG_X86_64 or CONFIG_X86_32 . We will deal with other arches later on as and when possible - avr32 will be the next since that is something I can test. Compile (make allyesconfig / make allmodconfig / custom config) and boot tested. akpm: the idea is that we put the declaration of sttribute.owner inside `#ifndef CONFIG_X86'. But that proved to be too ambitious for now because new usages kept on turning up in subsystem trees. [akpm: remove the ifdef for now] Signed-off-by: Parag Warudkar <parag.lkml@gmail.com> Cc: Greg KH <greg@kroah.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Tejun Heo <htejun@gmail.com> Cc: Len Brown <lenb@kernel.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ACPI: replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printkLin Ming2008-10-22
|/ | | | | | | | | | | | | | | | | | | | ACPI_DB_ERROR and ACPI_DB_WARN were removed from ACPICA core. So replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk(KERN_ERR PREFIX ...) and ACPI_DEBUG_PRINT((ACPI_DB_WARN, ...) with printk(KERN_WARNING PREFIX ...) We do not use ACPI_ERROR/ACPI_WARNING since they're not exported, see ------------------------------------------------------------- commit 6468463abd7051fcc29f3ee7c931f9bbbb26f5a4 Author: Len Brown <len.brown@intel.com> Date: Mon Jun 26 23:41:38 2006 -0400 ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...) Signed-off-by: Len Brown <len.brown@intel.com> ------------------------------------------------------------- Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* move memory_read_from_buffer() from fs.h to string.hAkinobu Mita2008-07-24
| | | | | | | | | | | | | | | | | James Bottomley warns that inclusion of linux/fs.h in a low level driver was always a danger signal. This patch moves memory_read_from_buffer() from fs.h to string.h and fixes includes in existing memory_read_from_buffer() users. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: James Bottomley <James.Bottomley@hansenpartnership.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Bob Moore <robert.moore@intel.com> Cc: Thomas Renninger <trenn@suse.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from ↵Zhang Rui2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | user-space Allow users to enable/disable/clear a specific & valid GPE/Fixed Event in user space. This is useful for debugging, especially for some interrupt storm issues. All wakeup GPEs are disabled and they can not be enabled at runtime, and we mark them as invalid. All GPEs that don't have a _Lxx/_Exx method are marked as invalid. All Fixed Events that don't have an event handler are marked as invalid and they can't be enabled until an event handler is registered. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Ling Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* ACPI: use memory_read_from_buffer()Akinobu Mita2008-06-11
| | | | | | | Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* acpi: use non-racy method for proc entries creationDenis V. Lunev2008-04-29
| | | | | | | | | | | | | | Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Len Brown <lenb@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ACPI: buffer array too short in drivers/acpi/system.cJohann Felix Soden2008-03-12
| | | | | | | | | Since "ff_gbl_lock" has a length of 11 chars and is copied with sprintf to char buffer[10], there is a problem. We need char buffer[12] because of the closing zero byte. Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: fix build warningLen Brown2008-02-07
| | | | | | drivers/acpi/system.c:360: warning: ignoring return value of ‘sysfs_create_group’, declared with attribute warn_unused_result Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: create /sys/firmware/acpi/interruptsLen Brown2008-02-06
| | | | | | | | See Documentation/ABI/testing/sysfs-firmware-acpi Based-on-original-patch-by: Luming Yu <luming.yu@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* Kobject: change drivers/acpi/system.c to use kobject_create_and_addGreg Kroah-Hartman2008-01-24
| | | | | | | | | | Stop using kobject_register for this static kobject, as it's overkill. This way is much simpler. Cc: Len Brown <len.brown@intel.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* kobject: convert /sys/firmware/acpi/ to use kobject_createGreg Kroah-Hartman2008-01-24
| | | | | | | | | | We don't need a kset here, a simple kobject will do just fine, so dynamically create the kobject and use it. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ACPI: Populate /sys/firmware/acpi/tables/Zhang Rui2007-07-22
| | | | | | | | | | | | | | | | The file name is the signature, such as DSDT, and the contents are the binary table image. Some tables, such as the SSDT, can have multiple instances. If just one, the file is SSDT, but if 3 instances, for example, it will be SSDT1, SSDT2, SSDT3 All static tables (besides teh RSDP and RSDT themselves are exported. Dynamic tables, such as SSDT op-regions that are not declared in the RSDT, will be added in a subsequent patch. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: delete extra #defines in /drivers/acpi/ driversLen Brown2007-02-12
| | | | | | | | | Cosmetic only. Except in a single case, #define ACPI_*_DRIVER_NAME were invoked 0 or 1 times. Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: clean up ACPI_MODULE_NAME() useLen Brown2007-02-12
| | | | | | | | | | cosmetic only Make "module name" actually match the file name. Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care. Fix indentation where Lindent did get confused. Signed-off-by: Len Brown <len.brown@intel.com>
* Pull sysfs into test branchLen Brown2007-02-03
|\ | | | | | | | | | | | | | | | | Conflicts: Documentation/feature-removal-schedule.txt include/acpi/acpi_drivers.h Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: add ACPICA version in sysfsZhang Rui2007-01-28
| | | | | | | | | | | | | | | | Add an ACPI attribute to indicate ACPICA version. /proc/acpi/version is deprecated by /sys/module/acpi/parameters/acpica_version. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPICA: minimal patch to integrate new tables into LinuxAlexey Starikovskiy2007-02-02
|/ | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: add 'const' to several ACPI file_operationsArjan van de Ven2006-07-10
| | | | | Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: delete acpi_os_free(), use kfree() directlyLen Brown2006-06-30
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: delete tracing macros from drivers/acpi/*.cPatrick Mochel2006-06-27
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUGThomas Renninger2006-06-26
| | | | | Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: ACPICA 20060421Bob Moore2006-06-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* ACPI: ACPICA 20060331Bob Moore2006-06-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [ACPI] Lindent all ACPI filesLen Brown2005-08-05
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-30 16:05:25 -0500