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* Merge branch 'release' of ↵Linus Torvalds2012-03-301-4/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI & Power Management changes from Len Brown: - ACPI 5.0 after-ripples, ACPICA/Linux divergence cleanup - cpuidle evolving, more ARM use - thermal sub-system evolving, ditto - assorted other PM bits Fix up conflicts in various cpuidle implementations due to ARM cpuidle cleanups (ARM at91 self-refresh and cpu idle code rewritten into "standby" in asm conflicting with the consolidation of cpuidle time keeping), trivial SH include file context conflict and RCU tracing fixes in generic code. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (77 commits) ACPI throttling: fix endian bug in acpi_read_throttling_status() Disable MCP limit exceeded messages from Intel IPS driver ACPI video: Don't start video device until its associated input device has been allocated ACPI video: Harden video bus adding. ACPI: Add support for exposing BGRT data ACPI: export acpi_kobj ACPI: Fix logic for removing mappings in 'acpi_unmap' CPER failed to handle generic error records with multiple sections ACPI: Clean redundant codes in scan.c ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed() ACPI: consistently use should_use_kmap() PNPACPI: Fix device ref leaking in acpi_pnp_match ACPI: Fix use-after-free in acpi_map_lsapic ACPI: processor_driver: add missing kfree ACPI, APEI: Fix incorrect APEI register bit width check and usage Update documentation for parameter *notrigger* in einj.txt ACPI, APEI, EINJ, new parameter to control trigger action ACPI, APEI, EINJ, limit the range of einj_param ACPI, APEI, Fix ERST header length check cpuidle: power_usage should be declared signed integer ...
| * ACPI: ec: Do request_region outside WARN()Andi Kleen2012-03-301-4/+4
| | | | | | | | | | | | | | | | WARN() is not supposed to have side effects, so move the request_regions outside. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: EC: Add ec_get_handle()Seth Forshee2012-03-201-0/+10
|/ | | | | | | | | toshiba_acpi needs to execute an AML method within the EC namespace to make hotkeys work on some platforms. Provide an interface to allow it to easily get a handle to the EC namespace for this purpose. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Merge branch 'ec-cleanup' into releaseLen Brown2011-05-291-7/+1
|\ | | | | | | | | Conflicts: drivers/platform/x86/compal-laptop.c
| * ACPI EC: remove redundant codeZhang Rui2011-05-291-2/+0
| | | | | | | | | | | | | | ec->handle is set in ec_parse_device(), so don't bother to set it again. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI EC: remove dead codeThomas Renninger2011-04-011-5/+1
| | | | | | | | | | | | | | | | | | | | | | static void acpi_ec_gpe_query(void *ec_cxt); -> The function is right above this declaration -> not needed. poll_force is also not used, cleaned up in ec.c and its users: compal-laptop and msi-laptop. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
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| \
*-. \ Merge branches 'acpica', 'aml-custom', 'bugzilla-16548', 'bugzilla-20242', ↵Len Brown2011-05-291-0/+11
|\ \ \ | |_|/ |/| | | | | 'd3-cold', 'ec-asus' and 'thermal-fix' into release
| | * ACPI: EC: add another DMI check for ASUS hardwarePeter Collingbourne2011-04-251-0/+3
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0adf3c746a73684b3f8c2821a584e1db998f61e9 introduced a regression by making the ECDT validation test for ASUS hardware more restrictive. The previous test used the dmi_name_in_vendors function which searches a number of DMI fields, while the new test checked only the BIOS vendor, which is known to not match on an ASUS F5GL laptop which requires ECDT validation. Add a rule to ec_dmi_table based on an alternative DMI pattern for ASUS hardware as found elsewhere in the kernel. Signed-off-by: Peter Collingbourne <peter@pcc.me.uk> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI EC: enable MSI workaround for Quanta laptopsZhang Rui2011-05-291-0/+8
|/ | | | | | | | | Enable MSI workaround for Quanta laptops. https://bugzilla.kernel.org/show_bug.cgi?id=20242 Tested-by: Jan-Matthias Braun <jan_braun@gmx.net> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Implicit notify supportLin Ming2011-01-121-1/+1
| | | | | | | | | | | | This feature provides an automatic device notification for wake devices when a wakeup GPE occurs and there is no corresponding GPE method or handler. Rather than ignoring such a GPE, an implicit AML Notify operation is performed on the parent device object. This feature is not part of the ACPI specification and is provided for Windows compatibility only. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: New GPE handler callback definitionLin Ming2011-01-121-1/+2
| | | | | | | | | | | The new GPE handler callback has 2 additional parameters, gpe_device and gpe_number. typedef u32 (*acpi_gpe_handler) (acpi_handle gpe_device, u32 gpe_number, void *context); Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: EC: Add another dmi match entry for MSI hardwareAlexey Starikovskiy2010-12-091-0/+3
| | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=15418 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> cc: stable@kernel.org Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Make Embedded Controller command timeout delay configurableThomas Renninger2010-10-221-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here and then there show up machines which need higher timeout values. Finding this on affected machines can be cumbersome, because ACPI_EC_DELAY is a compile option -> make it configurable via boot param. This can even be provided writable at runtime via: /sys/modules/acpi/parameters/ec_delay Known machines where this helps: Some HP machines where for whatever reasons specific EC accesses take very long at resume from S3 (in _WAK function). The AE_TIME error is passed upwards and the ACPI interpreter will not execute the rest of the _WAK function which results in not properly initialized devices/variables with different side-effects. Afaik, on some MSI machines this helped as well. If this param is needed there probably are underlying problems like: - EC firmware bug - A kernel EC driver bug - An ACPI interpreter behavior (e.g. timings when specific EC accesses happen and how) which the EC does not like - ... which should get evaluated further, but often are nasty or impossible to fix from OS side. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'acpica' of ↵Linus Torvalds2010-08-071-32/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (27 commits) ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block() ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset ACPI / ACPICA: Do not execute _PRW methods during initialization ACPI: Fix bogus GPE test in acpi_bus_set_run_wake_flags() ACPICA: Update version to 20100702 ACPICA: Fix for Alias references within Package objects ACPICA: Fix lint warning for 64-bit constant ACPICA: Remove obsolete GPE function ACPICA: Update debug output components ACPICA: Add support for WDDT - Watchdog Descriptor Table ACPICA: Drop acpi_set_gpe ACPICA: Use low-level GPE enable during GPE block initialization ACPI / EC: Do not use acpi_set_gpe ACPI / EC: Drop suspend and resume routines ACPICA: Remove wakeup GPE reference counting which is not used ACPICA: Introduce acpi_gpe_wakeup() ACPICA: Rename acpi_hw_gpe_register_bit ACPICA: Update version to 20100528 ACPICA: Add signatures for undefined tables: ATKG, GSCI, IEIT ACPICA: Optimization: Reduce the number of namespace walks ...
| * ACPI / EC: Do not use acpi_set_gpeRafael J. Wysocki2010-07-061-11/+4
| | | | | | | | | | | | | | | | | | | | The EC driver is the last user of acpi_set_gpe() and since it is guaranteed that the EC GPE will not be shared, acpi_disable_gpe() and acpi_enable_gpe() may be used for disabling the GPE temporarilty if a GPE storm is detected and re-enabling it during EC transactions. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI / EC: Drop suspend and resume routinesRafael J. Wysocki2010-07-061-18/+0
| | | | | | | | | | | | | | | | | | | | The suspend and resume routines provided by the EC driver are not really necessary, because the handler of the GPE disabled by them is not going to be executed after suspend_device_irqs() and before resume_device_irqs() anyway. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPICA: Remove wakeup GPE reference counting which is not usedRafael J. Wysocki2010-07-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the previous patch that introduced acpi_gpe_wakeup() and modified the ACPI suspend and wakeup code to use it, the third argument of acpi_{enable|disable}_gpe() and the GPE wakeup reference counter are not necessary any more. Remove them and modify all of the users of acpi_{enable|disable}_gpe() accordingly. Also drop GPE type constants that aren't used any more. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com> 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>
* | acpi ec: Fix possible double io port registrationThomas Renninger2010-08-031-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | which will result in a harmless but ugly WARN message on some machines. Signed-off-by: Thomas Renninger <trenn@suse.de> CC: mjg59@srcf.ucam.org CC: platform-driver-x86@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: astarikovskiy@suse.de CC: akpm@linux-foundation.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | ACPI: Register EC io ports in /proc/ioportsThomas Renninger2010-08-031-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Formerly these have been exposed through /proc/.. Better register them where all IO ports should get registered and scream loud if someone else claims to use them. EC data and command port typically should show up like this then: ... 0060-0060 : keyboard 0062-0062 : EC data 0064-0064 : keyboard 0066-0066 : EC command 0070-0071 : rtc0 ... Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexey Starikovskiy <astarikovskiy@suse.de> CC: Len Brown <lenb@kernel.org> CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: Bjorn Helgaas <bjorn.helgaas@hp.com> CC: platform-driver-x86@vger.kernel.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | ACPI: Provide /sys/kernel/debug/ec/...Thomas Renninger2010-08-031-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides the same information through debugfs, which previously was provided through /proc/acpi/embedded_controller/*/info This is the gpe the EC is connected to and whether the global lock gets used. The io ports used are added to /proc/ioports in another patch. Beside the fact that /proc/acpi is deprecated for quite some time, this info is not needed for applications and thus can be moved to debugfs instead of a public interface like /sys. Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexey Starikovskiy <astarikovskiy@suse.de> CC: Len Brown <lenb@kernel.org> CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: Bjorn Helgaas <bjorn.helgaas@hp.com> CC: platform-driver-x86@vger.kernel.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
* | ACPI: Remove /proc/acpi/embedded_controller/..Thomas Renninger2010-08-031-80/+1
|/ | | | | | | | | | | | | | | | | | Other patches in this series add the same info to /sys/... and /proc/ioports. The info removed should never have been used in an application, eventually someone read it manually. /proc/acpi is deprecated for more than a year anyway... Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexey Starikovskiy <astarikovskiy@suse.de> CC: Len Brown <lenb@kernel.org> CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: platform-driver-x86@vger.kernel.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
* Merge branches 'bugzilla-14668' and 'misc-2.6.35' into releaseLen Brown2010-06-011-2/+1
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| * ACPI: EC: Use kmemdupJulia Lawall2010-05-201-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI / EC / PM: Fix names of functions that block/unblock EC transactionsRafael J. Wysocki2010-05-281-8/+8
| | | | | | | | | | | | | | | | | | | | | | The names of the functions used for blocking/unblocking EC transactions during suspend/hibernation suggest that the transactions are suspended and resumed by them, while in fact they are disabled and enabled. Rename the functions (and the flag used by them) to better reflect what they really do. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI / EC / PM: Fix race between EC transactions and system suspendRafael J. Wysocki2010-05-281-0/+10
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There still is a race that may result in suspending the system in the middle of an EC transaction in progress, which leads to problems (like the kernel thinking that the ACPI global lock is held during resume while in fact it's not). To remove the race condition, modify the ACPI platform suspend and hibernate callbacks so that EC transactions are blocked right after executing the _PTS global control method and are allowed to happen again right after the low-level wakeup. Introduce acpi_pm_freeze() that will disable GPEs, wait until the event queues are empty and block EC transactions. Use it wherever GPEs are disabled in preparation for switching local interrupts off. Introduce acpi_pm_thaw() that will allow EC transactions to happen again and enable runtime GPEs. Use it to balance acpi_pm_freeze() wherever necessary. In addition to that use acpi_ec_resume_transactions_early() to unblock EC transactions as early as reasonably possible during resume. Also unblock EC transactions in acpi_hibernation_finish() and in the analogous suspend routine to make sure that the EC transactions are enabled in all error paths. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=14668 Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
*-. Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', ↵Len Brown2010-04-061-26/+10
|\ \ | | | | | | | | | 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release
| | * include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
| * ACPI: EC: Allow multibyte access to ECAlexey Starikovskiy2010-03-171-26/+9
|/ | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=14667 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
*---. Merge branches 'battery-2.6.34', 'bugzilla-10805', 'bugzilla-14668', ↵Len Brown2010-03-141-55/+130
|\ \ \ | | | | | | | | | | | | 'bugzilla-531916-power-state', 'ht-warn-2.6.34', 'pnp', 'processor-rename', 'sony-2.6.34', 'suse-bugzilla-531547', 'tz-check', 'video' and 'misc-2.6.34' into release
| | | * Merge branch 'acpica' of ↵Linus Torvalds2010-03-011-2/+2
| | | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: replace acpi_integer by u64 ACPICA: Update version to 20100121. ACPICA: Remove unused uint32_struct type ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type ACPICA: Predefined name repair: fix NULL package elements ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls ACPICA: Update all ACPICA copyrights and signons to 2010 ACPICA: Update for new gcc-4 warning options
| | | | * ACPI: replace acpi_integer by u64Lin Ming2010-01-281-2/+2
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | acpi_integer is now obsolete and removed from the ACPICA code base, replaced by u64. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | * ACPI: Use GPE reference counting to support shared GPEsRafael J. Wysocki2010-02-241-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To fix a bug and address the reviewers' comments regarding the ACPI GPE refcounting patch, do the following additional changes: o Remove the second argument of acpi_ev_enable_gpe(), 'write_to_hardware', because it is not necessary any more. o Add the "bad parameter" test against 'type' in acpi_enable_gpe() and acpi_disable_gpe(). o Make acpi_enable_gpe() only check 'status' for runtime GPEs if acpi_ev_enable_gpe() was actually called. o Make acpi_disable_gpe() return 'status' returned by acpi_ev_disable_gpe() and fix a bug where ACPI_GPE_TYPE_WAKE and ACPI_GPE_TYPE_RUNTIME were exchanged by mistake. o Add comments explaining why acpi_set_gpe() is used by the ACPI EC driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| | | * ACPI: Use GPE reference counting to support shared GPEsRafael J. Wysocki2010-02-221-6/+8
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI GPEs may map to multiple devices. The current GPE interface only provides a mechanism for enabling and disabling GPEs, making it difficult to change the state of GPEs at runtime without extensive cooperation between devices. Add an API to allow devices to indicate whether or not they want their device's GPE to be enabled for both runtime and wakeup events. Remove the old GPE type handling entirely, which gets rid of various quirks, like the implicit disabling with GPE type setting. This requires a small amount of rework in order to ensure that non-wake GPEs are enabled by default to preserve existing behaviour. Based on patches from Matthew Garrett <mjg@redhat.com>. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| | * ACPI / EC / PM: Close race between EC and resume from hibernationRafael J. Wysocki2010-03-081-1/+32
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a race between resume from hibernation and the EC driver that may result in restoring the hibernation image in the middle of an EC transaction in progress, which in turn may lead to unpredictable behavior of the platform. To remove that race condition, add a helpers for suspending and resuming EC transactions in a safe way to be executed by the ACPI platform hibernate pre-restore and restore cleanup callbacks. http://bugzilla.kernel.org/show_bug.cgi?id=14668 Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: EC: Add wait for irq stormAlexey Starikovskiy2010-01-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Merge of poll and irq modes accelerated EC transaction, so that keyboard starts to suffer again. Add msleep(1) into transaction path for the storm to allow keyboard controller to do its job. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14747 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: SBS: Move SBS HC callback to faster Notify queueAlexey Starikovskiy2010-01-151-1/+2
| | | | | | | | | | | | | | | | SBS transactions should happen in Notify work queue, to not create a dead lock with GPE execution accessing SBS devices. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: EC: Accelerate query executionAlexey Starikovskiy2009-12-241-45/+77
|/ | | | | | | | | | | Split EC query handling into acknowledge and execution phase. This allows much smaller pending query lattency and lowers chances of EC going "wild" and losing events. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14858 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
*-. Merge branches 'bugzilla-14446', 'bugzilla-14753' and 'bugzilla-14824' into ↵Len Brown2009-12-241-2/+8
|\ \ | | | | | | | | | release
| * | ACPI: EC: Fix MSI DMI detectionAlexey Starikovskiy2009-12-221-2/+8
| |/ | | | | | | | | | | | | | | | | | | MSI strings should be ORed, not ANDed. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14446 cc: stable@kernel.org Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* / ACPICA: Add post-order callback to acpi_walk_namespaceLin Ming2009-11-241-1/+1
|/ | | | | | | | | | | | | | The existing interface only has a pre-order callback. This change adds an additional parameter for a post-order callback which will be more useful for bus scans. ACPICA BZ 779. Also update the external calls to acpi_walk_namespace. http://www.acpica.org/bugzilla/show_bug.cgi?id=779 Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'bugzilla-14081' into releaseLen Brown2009-10-031-6/+46
|\
| * ACPI: EC: Don't parse DSDT for EC early init on CompalAlexey Starikovskiy2009-10-031-0/+15
| | | | | | | | | | | | | | | | | | | | | | Compal DSDT breaks if scanned early, while we need early scan for almost all ASUS machines. Safest workaround seems to be to continue do an early scan for all machines, but this Compal model. http://bugzilla.kernel.org/show_bug.cgi?id=14086 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: EC: Rewrite DMI checksAlexey Starikovskiy2009-10-031-6/+31
| | | | | | | | | | | | | | | | | | | | Use dmi_check_system() for DMI matching. Don't use string "Notebook" for matching MSI hardware. http://bugzilla.kernel.org/show_bug.cgi?id=14081 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: EC: Restart command even if no interrupts from ECAlexey Starikovskiy2009-10-021-3/+1
|/ | | | | | | | | EC may forget a command without sending any "reset" interrupt, thus we need to lessen the requirement for transaction restart. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14247 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'misc-2.6.32' into releaseLen Brown2009-09-191-0/+1
|\ | | | | | | | | | | | | Conflicts: drivers/pci/dmar.c Signed-off-by: Len Brown <len.brown@intel.com>
| * ACPI: linux/acpi.h should not include linux/dmi.hLen Brown2009-09-191-0/+1
| | | | | | | | | | | | users of acpi.h that need dmi.h should include it directly. Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'ec' into releaseLen Brown2009-09-191-100/+50
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: drivers/acpi/ec.c Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: EC: Drop orphan commentAlexey Starikovskiy2009-08-291-4/+0
| | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: EC: use BURST mode only for MSI notebooksAlexey Starikovskiy2009-08-291-2/+4
| | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: EC: Merge IRQ and POLL modesAlexey Starikovskiy2009-08-291-94/+46
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In general, EC transaction should complete in less than 1ms, thus it is possible to merge wait for 1ms in poll mode and 1ms of interrupt transaction timeout. Still, driver will wait 500ms for EC to complete transaction. This significantly simplifies driver and makes it immune to problematic EC interrupt implementations. It also may lessen kernel start-up time by 500ms. References: http://bugzilla.kernel.org/show_bug.cgi?id=12949 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
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