- 07 10月, 2012 1 次提交
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由 Lance Ortiz 提交于
Add support to export the device description obtained from the ACPI _STR method, if one exists for a device, to user-space via a sysfs interface. This new interface provides a standard and platform neutral way for users to obtain the description text stored in the ACPI _STR method. If no _STR method exists for the device, no sysfs 'description' file will be created. The 'description' file will be located in the /sys/devices/ directory using the device's path. /sys/device/<bus>/<bridge path>/<device path>.../firmware_node/description Example: /sys/devices/pci0000:00/0000:00.07.0/0000:0e:00.0/firmware_node/description It can also be located using the ACPI device path, for example: /sys/devices/LNXSYSTM:00/device:00/ACPI0004:00/PNP0A08:00/device:13/device:15/description /sys/devices/LNXSYSTM:00/device:00/ACPI0004:00/ACPI0004:01/ACPI0007:02/description Execute the 'cat' command on the 'description' file to obtain the description string for that device. This patch also includes documentation describing how the new sysfs interface works Changes from v1-v2 based on comments by Len Brown and Fengguang Wu * Removed output "No Description" and leaving a NULL attribute if the _STR method failed to evaluate. * In acpi_device_remove_files() removed the redundent check of dev->pnp.str_obj before calling free. This check triggered a message from smatch. Signed-off-by: NLance Ortiz <lance.ortiz@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 03 10月, 2012 1 次提交
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由 David Howells 提交于
Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: NDave Jones <davej@redhat.com>
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- 22 9月, 2012 2 次提交
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由 Mika Westerberg 提交于
Add a helper macro module_acpi_driver() which reduces the boilerplate code for ACPI drivers. This is similar what is done for other busses (PCI, SPI, I2C etc). Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Lan Tianyu 提交于
A USB port's position and connectability can't be identified on some boards via USB hub registers. ACPI _UPC and _PLD can help to resolve this issue and so it is necessary to bind USB with ACPI. This patch is to allow ACPI binding with USB-3.0 hub. Current ACPI only can bind one struct-device to one ACPI device node. This can not work with USB-3.0 hub, because the USB-3.0 hub has two logical devices. Each works for USB-2.0 and USB-3.0 devices. In the Linux USB subsystem, those two logical hubs are treated as two seperate devices that have two struct devices. But in the ACPI DSDT, these two logical hubs share one ACPI device node. So there is a requirement to bind multi struct-devices to one ACPI device node. This patch is to resolve such problem. Following is the ACPI device nodes' description under xhci hcd. Device (XHC) Device (RHUB) Device (HSP1) Device (HSP2) Device (HSP3) Device (HSP4) Device (SSP1) Device (SSP2) Device (SSP3) Device (SSP4) Topology in the Linux device XHC USB-2.0 logical hub USB-3.0 logical hub HSP1 SSP1 HSP2 SSP2 HSP3 SSP3 HSP4 SSP4 This patch also modifies the output of /proc/acpi/wakeup. One ACPI node can be associated with multiple devices: XHC S4 *enabled pci:0000:00:14.0 RHUB S0 disabled usb:usb1 disabled usb:usb2 Signed-off-by: NLan Tianyu <tianyu.lan@intel.com> Acked-by: NSarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 21 9月, 2012 9 次提交
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由 Bob Moore 提交于
Version 20120913. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLv Zheng <lv.zheng@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Add values 5 (CMCI) and 6 (MCE). Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLv Zheng <lv.zheng@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Feng Tang 提交于
This patch is on top of the ACPICA 20120816 release, which implemented a native way to decode PLD buffer, so use it instead of leting upper level users do the decoding. v2: Modify the check for PLD buffer length to reject buffers whose length < 16 Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Version 20120816. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Added structs for the buffers related to these predefined names, in acbuffer.h Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
_PLD (Physical Location of Device) returns a bit-packed buffer that is difficult to parse. This change adds a new interface, AcpiDecodePldBuffer that parses the buffer into a more usable local struct. Also adds macros to both get and set individual fields within the packed _PLD buffer. Adds a new include file, acbuffer.h - which will be expanded to add structs for other ACPI names that return buffers. ACPICA BZ 954. Emit (in comments) the decoded contents of a static _PLD buffer in order to improve comprehension of this bit-packed buffer. Add multi-endian support to the _PLD decode routine. Deploy the multi-endian macros to extract data from the _PLD buffer. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
These tables are defined outside of the ACPI specification. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
No functional change. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Feng Tang 提交于
This is a follow on for commmit 3f6f49c7 "ACPI: delete _GTS/_BFS support" to do more cleanup. Signed-off-by: NFeng Tang <feng.tang@intel.com> Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 18 9月, 2012 1 次提交
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由 Daniel Lezcano 提交于
Currently we have the cpuidle_device field in the acpi_processor_power structure. This adds a dependency between processor.h and cpuidle.h Although it is not a real problem, removing this dependency has the benefit of separating a bit more the cpuidle code from the rest of the acpi code. Also, the compilation should be a bit improved because we do no longer include cpuidle.h in processor.h. The preprocessor was generating 30418 loc and with this patch it generates 30256 loc for processor_thermal.c, a file which is not concerned at all by cpuidle, like processor_perflib.c and processor_throttling.c. That may sound ridiculous, but "small streams make big rivers" :P This patch moves this field into a static global per cpu variable like what is done in the intel_idle driver. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 16 9月, 2012 1 次提交
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由 Daniel Lezcano 提交于
The 'device' parameter is not used neither in acpi_processor_power_init and acpi_processor_power_exit. This patch removes it. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 05 9月, 2012 1 次提交
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由 Daniel Lezcano 提交于
Remove the unused power field from struct struct acpi_processor_cx. [rjw: Modified changelog.] Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Acked-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 31 7月, 2012 1 次提交
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由 Len Brown 提交于
_GTS and _BFS were added to the suspend/resume flow in the ACPI 2.0 specification. Linux dutifully implemented _GTS and _BFS. We discovered that it was rarely seen in systems in the field. Further, some of those systems had AML so bogus that it could never work -- proof that no other operating system supports _GTS and _BFS. So we made _GTS and _BFS optional via modparam, and disabled them by default. But we've had to complicate some code to keep this support in the kernel, as these methods are defined to be evaluated very close to sleep entry and exit. Indeed, no other AML is ever evaluated with interrupts off. We have submitted a proposal for _GTS and _BFS to be officially removed from the ACPI specification on the next revision. Here we remove it from Linux. Signed-off-by: NLen Brown <len.brown@intel.com> Acked-by: NIngo Molnar <mingo@kernel.org> Acked-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- 18 7月, 2012 3 次提交
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由 Daniel Lezcano 提交于
Remove the time field as it is not used. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Daniel Lezcano 提交于
Remove the usage field as it is not used. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Daniel Lezcano 提交于
Remove the latency_ticks field as it is not used. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 17 7月, 2012 6 次提交
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由 Bob Moore 提交于
Version 20120711. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Fixes issues like this: i_aSL -> iASL 00-7_f -> 00-7F local_fADT -> local_FADT execute_oSI -> execute_OSI Also, in function headers, the parameters are now translated to lower case (with underscores if necessary.) Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Add acpi_load_table and acpi_unload_parent_table to support host-directed dynamic table load/unload. Intended to support hotplug addition and removal of SSDTs. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
These new interfaces will be deployed across ACPICA in order to point a finger directly at any detected BIOS issues -- such as issues with ACPI tables, etc. https://www.acpica.org/bugzilla/show_bug.cgi?id=843Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Simplifies sharing of these functions. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 14 7月, 2012 1 次提交
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由 Bob Moore 提交于
Version 20120620. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 01 7月, 2012 3 次提交
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由 Rafael J. Wysocki 提交于
Since the legacy ACPI driver PM callbacks included into struct acpi_device_ops are not used any more, drop them. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Rafael J. Wysocki 提交于
Make the ACPI processor driver define its PM callbacks through a struct dev_pm_ops object rather than by using legacy PM hooks in struct acpi_device_ops. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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由 Rafael J. Wysocki 提交于
None of the drivers implementing the ACPI device suspend callback uses the pm_message_t argument of it, so this argument may be dropped entirely from that callback. This will simplify switching the ACPI bus type to PM handling based on struct dev_pm_ops. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 24 6月, 2012 1 次提交
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由 Huang Ying 提交于
Lower device sleep state can save more power, but has more exit latency too. Sometimes, to satisfy some power QoS and other requirement, we need to constrain the lowest device sleep state. In this patch, a parameter to specify lowest allowed state for acpi_pm_device_sleep_state is added. So that the caller can enforce the constraint via the parameter. This is needed by PCIe D3cold support, where the lowest power state allowed may be D3_HOT instead of default D3_COLD. CC: Len Brown <lenb@kernel.org> CC: linux-acpi@vger.kernel.org Reviewed-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NHuang Ying <ying.huang@intel.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 23 6月, 2012 1 次提交
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由 Jiang Liu 提交于
This patch provide MMCONFIG address for PCI host bridges, which will be used to support host bridge hotplug. It gets MMCONFIG address by evaluating _CBA method if available. Reviewed-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NJiang Liu <liuj97@gmail.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 04 6月, 2012 3 次提交
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由 Toshi Kani 提交于
Changed acpi_bus_hot_remove_device() to support _OST. This function is also changed to global so that it can be called from hotplug notify handlers to perform hot-remove operation. Changed acpi_eject_store(), which is the sysfs eject handler. It checks eject_pending to see if the request was originated from ACPI eject notification. If not, it calls _OST(0x103,84,) per Figure 6-37 in ACPI 5.0 spec. Added eject_pending bit to acpi_device_flags. This bit is set when the kernel has received an ACPI eject notification, but does not initiate its hot-remove operation by itself. Added struct acpi_eject_event. This structure is used to pass extended information to acpi_bus_hot_remove_device(), which has a single argument to support asynchronous call Signed-off-by: NToshi Kani <toshi.kani@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Toshi Kani 提交于
Added acpi_evaluate_hotplug_opt(). All ACPI hotplug handlers must call this function when evaluating _OST for hotplug operations. If the platform does not support _OST, this function returns AE_NOT_FOUND and has no effect on the platform. ACPI_HOTPLUG_OST is defined when all relevant ACPI hotplug operations, such as CPU, memory and container hotplug, are enabled. This assures consistent behavior among the hotplug operations with regarding the _OST support. When ACPI_HOTPLUG_OST is not defined, this function is a no-op. ACPI PCI hotplug is not enhanced to support _OST at this time since it is a legacy method being replaced by PCIe native hotplug. _OST support for ACPI PCI hotplug may be added in future if necessary. Some platforms may require the OS to support _OST in order to support ACPI hotplug operations. For example, if a platform has the management console where user can request a hotplug operation from, this _OST support would be required for the management console to show the result of the hotplug request to user. Added macro definitions of _OST source events and status codes. Also renamed OSC_SB_CPUHP_OST_SUPPORT to OSC_SB_HOTPLUG_OST_SUPPORT since this _OSC bit is not specific to CPU hotplug. This bit is defined in Table 6-147 of ACPI 5.0 as follows. Bits: 3 Field Name: Insertion / Ejection _OST Processing Support Definition: This bit is set if OSPM will evaluate the _OST object defined under a device when processing insertion and ejection source event codes. Signed-off-by: NToshi Kani <toshi.kani@hp.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
introduced in Linux-3.5-rc1 by 66886d6f (ACPI: Add stubs for (un)register_acpi_bus_type) Fix header file warnings when CONFIG_ACPI is not enabled: include/acpi/acpi_bus.h:443:42: warning: 'struct acpi_bus_type' declared inside parameter list include/acpi/acpi_bus.h:443:42: warning: its scope is only this definition or declaration, which is probably not include/acpi/acpi_bus.h:444:44: warning: 'struct acpi_bus_type' declared inside parameter list Signed-off-by: NLen Brown <len.brown@intel.com>
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- 01 6月, 2012 5 次提交
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由 Bob Moore 提交于
Version string 20120518. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Lin Ming 提交于
Remove the unused argument of acpi_os_wait_events_complete. Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Adds support for the PCC keyword for the Register() resource descriptor macro. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Version 20120420. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
This change adds support to allow multiple notify handlers on Device, ThermalZone, and Processor objects. Also re-worked and restructured the entire notify support code for handler installation, handler removal, notify event queuing, and notify dispatch to handler. Extends and updates original commit 3f0be671("ACPI / ACPICA: Multiple system notify handlers per device") by Rafael Wysocki. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLin Ming <ming.m.lin@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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