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Work around a defect in the printk subsystem introduced by a
logging change.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Currently we have valid flag to represent if this ACPI device power
state is valid. A device power state is valid does not necessarily
mean we, as OSPM, has a mean to put the device into that power state,
e.g. D3 cold is always a valid power state for any ACPI device, but if
there is no _PS3 or _PRx for this device, we can't really put that
device into D3 cold power state. The same is true for D0 power state.
So here comes the os_accessible flag, which is only set if the device
has provided us the required means to put it into that power state,
e.g. if we have _PS3 or _PRx, we can put the device into D3 cold state
and thus, D3 cold power state's os_accessible flag will be set in this
case.
And a new wrapper inline function is added to be used to check if
firmware has provided us a way to power off the device during runtime.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Updated Dock hotplug error messages with acpi_handle_<level>()
and pr_<level>(). Replaced acpi_get_name() & kfree() with
apci_handle_<level>(). Added error status to the messages where
needed.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Updated Container hotplug error messages with acpi_handle_<level>()
and pr_<level>(). Removed an unnecessary check to the device arg
in acpi_container_add().
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Updated Memory hotplug error messages with acpi_handle_<level>(),
dev_<level>() and pr_<level>(). Added missing "\n".
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Updated CPU hotplug error messages with acpi_handle_<level>(),
dev_<level>() and pr_<level>(). Modified some messages for
clarity. Added error status / id info to the messages where
needed.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch introduces acpi_handle_<level>(), where <level> is
a kernel message level such as err/warn/info, to support improved
logging messages for ACPI, esp. hot-plug operations.
acpi_handle_<level>() appends "ACPI" prefix and ACPI object path
to the messages. This improves diagnosis of hotplug operations
since an error message in a log file identifies an object that
caused an issue. This interface acquires the global namespace
mutex to obtain an object path. In interrupt context, it shows
the object path as <n/a>.
acpi_handle_<level>() takes acpi_handle as an argument, which is
passed to ACPI hotplug notify handlers from the ACPICA. Therefore,
it is always available unlike other kernel objects, such as device.
For example:
acpi_handle_err(handle, "Device don't exist, dropping EJECT\n");
logs an error message like this at KERN_ERR.
ACPI: \_SB_.SCK4.CPU4: Device don't exist, dropping EJECT
ACPI hot-plug drivers can use acpi_handle_<level>() when they need
to identify a target ACPI object path in their messages, such as
error cases. The usage model is similar to dev_<level>().
acpi_handle_<level>() can be used when a device is not created or
is invalid during hot-plug operations. ACPI object path is also
consistent on the platform, unlike device name that gets incremented
over hotplug operations.
ACPI drivers should use dev_<level>() when a device object is valid.
Device name provides more user friendly information, and avoids
acquiring the global ACPI namespace mutex. ACPI drivers also
continue to use pr_<level>() when they do not need to specify device
information, such as boot-up messages.
Note: ACPI_[WARNING|INFO|ERROR]() are intended for the ACPICA and
are not associated with the kernel message level.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Sony Vaio VPCEB1S1E does not resume correctly without
acpi_sleep=nonvs, so add it to the ACPI sleep blacklist.
References: https://bugzilla.kernel.org/show_bug.cgi?id=48781
Reported-by: Sébastien Wilmet <swilmet@gnome.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The current platform device creation and registration code in
acpi_create_platform_device() is quite convoluted. This function
takes an ACPI device node as an argument and eventually calls
platform_device_register_resndata() to create and register a
platform device object on the basis of the information contained
in that code. However, it doesn't associate the new platform
device with the ACPI node directly, but instead it relies on
acpi_platform_notify(), called from within device_add(), to find
that ACPI node again with the help of acpi_platform_find_device()
and acpi_platform_match() and then attach the new platform device
to it. This causes an additional ACPI namespace walk to happen and
is clearly suboptimal.
Use the observation that it is now possible to initialize the ACPI
handle of a device before calling device_add() for it to make this
code more straightforward. Namely, add a new field to struct
platform_device_info allowing us to pass the ACPI handle of interest
to platform_device_register_full(), which will then use it to
initialize the new device's ACPI handle before registering it.
This will cause acpi_platform_notify() to use the ACPI handle from
the device structure directly instead of using the .find_device()
routine provided by the device's bus type. In consequence,
acpi_platform_bus, acpi_platform_find_device(), and
acpi_platform_match() are not necessary any more, so remove them.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To avoid adding an ACPI handle pointer to struct device on
architectures that don't use ACPI, or generally when CONFIG_ACPI is
not set, in which cases that pointer is useless, define struct
acpi_dev_node that will contain the handle pointer if CONFIG_ACPI is
set and will be empty otherwise and use it to represent the ACPI
device node field in struct device.
In addition to that define macros for reading and setting the ACPI
handle of a device that don't generate code when CONFIG_ACPI is
unset. Modify the ACPI subsystem to use those macros instead of
referring to the given device's ACPI handle directly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, the ACPI handles of devices are initialized from within
device_add(), by acpi_bind_one() called from acpi_platform_notify()
which first uses the .find_device() routine provided by the device's
bus type to find the matching device node in the ACPI namespace.
This is a source of some computational overhead and, moreover, the
correctness of the result depends on the implementation of
.find_device() which is known to fail occasionally for some bus types
(e.g. PCI). In some cases, however, the corresponding ACPI device
node is known already before calling device_add() for the given
struct device object and the whole .find_device() dance in
acpi_platform_notify() is then simply unnecessary.
For this reason, make it possible to initialize the ACPI handles of
devices before calling device_add() for them. Modify
acpi_platform_notify() to call acpi_bind_one() in advance to check
the device's existing ACPI handle and skip the .find_device()
search if that is successful. Change acpi_bind_one() accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add a quirk to correctly report battery capacity on 2010 and 2011
Lenovo Thinkpad models.
The affected models that I tested (x201, t410, t410s, and x220)
exhibit a problem where, when battery capacity reporting unit is mAh,
the values being reported are wrong. Pre-2010 and 2012 models appear
to always report in mWh and are thus unaffected. Also, in mid-2012
Lenovo issued a BIOS update for the 2011 models that fixes the issue
(tested on x220 with a post-1.29 BIOS). No such update is available
for the 2010 models, so those still need this patch.
Problem description: for some reason, the affected Thinkpads switch
the reporting unit between mAh and mWh; generally, mAh is used when a
laptop is plugged in and mWh when it's unplugged, although a
suspend/resume or rmmod/modprobe is needed for the switch to take
effect. The values reported in mAh are *always* wrong. This does
not appear to be a kernel regression; I believe that the values were
never reported correctly. I tested back to kernel 2.6.34, with
multiple machines and BIOS versions.
Simply plugging a laptop into mains before turning it on is enough to
reproduce the problem. Here's a sample /proc/acpi/battery/BAT0/info
from Thinkpad x220 (before a BIOS update) with a 4-cell battery:
present: yes
design capacity: 2886 mAh
last full capacity: 2909 mAh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 145 mAh
design capacity low: 13 mAh
cycle count: 0
capacity granularity 1: 1 mAh
capacity granularity 2: 1 mAh
model number: 42T4899
serial number: 21064
battery type: LION
OEM info: SANYO
Once the laptop switches the unit to mWh (unplug from mains, suspend,
resume), the output changes to:
present: yes
design capacity: 28860 mWh
last full capacity: 29090 mWh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 1454 mWh
design capacity low: 200 mWh
cycle count: 0
capacity granularity 1: 1 mWh
capacity granularity 2: 1 mWh
model number: 42T4899
serial number: 21064
battery type: LION
OEM info: SANYO
Can you see how the values for "design capacity", etc., differ by a
factor of 10 instead of 14.8 (the design voltage of this battery)?
On the battery itself it says: 14.8V, 1.95Ah, 29Wh, so clearly the
values reported in mWh are correct and the ones in mAh are not.
My guess is that this problem has been around ever since those
machines were released, but because the most common Thinkpad
batteries are rated at 10.8V, the error (8%) is small enough that it
simply hasn't been noticed or at least nobody could be bothered to
look into it.
My patch works around the problem by adjusting the incorrectly
reported mAh values by "10000 / design_voltage". The patch also has
code to figure out if it should be activated or not. It only
activates on Lenovo Thinkpads, only when the unit is mAh, and, as an
extra precaution, only when the battery capacity reported through
ACPI does not match what is reported through DMI (I've never
encountered a machine where the first two conditions would be true
but the last would not, but better safe than sorry).
I've been using this patch for close to a year on several systems
without any problems.
References: https://bugzilla.kernel.org/show_bug.cgi?id=41062
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Currently acpi_dev_process_resource() returns AE_ABORT_METHOD
to terminate the acpi_walk_resources() it is called from if
the .preproc() routine provided by the caller of
acpi_dev_get_resources() initiating the resources walk returns
an error code. It is better to use AE_CTRL_TERMINATE for this
purpose, however, so do that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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_SUN method provides the slot unique-ID in the ACPI namespace. And The value
is written in Advanced Configuration and Power Interface Specification as
follows:
"The _SUN value is required to be unique among the slots ofthe same type.
It is also recommended that this number match the slot number printed on
the physical slot whenever possible."
So if we can know the value, we can identify the physical position of the
slot in the system.
The patch creates "sun" file in sysfs for identifying physical position
of the slot.
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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No power transitioning from D3 state up to a non-D0 state is allowed
so make acpi_device_set_power() fail and complain if such a transition
is attempted.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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We had introduced acpi_hotmem_initialized to avoid strange add_memory fail
message. But the memory device may not be used by the kernel, and the
device should be bound when the driver is being loaded. Remove
acpi_hotmem_initialized to allow that the device can be bound when the
driver is being loaded.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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We eject the memory device even if it is in use. It is very dangerous,
and it will cause the kernel to be panicked.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If acpi_memory_enable_device() fails, acpi_memory_enable_device() will
return a non-zero value, which means we fail to bind the memory device to
this driver. So we should free memory device before
acpi_memory_device_add() returns.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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acpi_memhotplug
We allocate memory to store acpi_memory_info, so we should free it before
freeing mem_device.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The memory device can be removed by 2 ways:
1. send eject request by SCI
2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject
We handle the 1st case in the module acpi_memhotplug, and handle
the 2nd case in ACPI eject notification. This 2 events may happen
at the same time, so we may touch acpi_memory_device.res_list at
the same time. This patch reimplements memory-hotremove support
through an ACPI eject notification. Now the memory device is
offlined and hotremoved only in the function acpi_memory_device_remove()
which is protected by device_lock().
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The memory device can be removed by 2 ways:
1. send eject request by SCI
2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject
In the 1st case, acpi_memory_disable_device() will be called.
In the 2nd case, acpi_memory_device_remove() will be called.
acpi_memory_device_remove() will also be called when we unbind the
memory device from the driver acpi_memhotplug or a driver initialization
fails.
acpi_memory_disable_device() has already implemented a code which
offlines memory and releases acpi_memory_info struct. But
acpi_memory_device_remove() has not implemented it yet.
So the patch move offlining memory and releasing acpi_memory_info struct
codes to a new function acpi_memory_remove_memory(). And it is used by both
acpi_memory_device_remove() and acpi_memory_disable_device().
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Now calls _SUB in addition to the other ID methods: _HID, _CID,
and _UID.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Fix for errors on printf changes on 64-bit platforms and gcc.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Fix for name segment copy and validation.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rename the dump buffer routines. Offset parameter can specify the
buffer starting offset that is used when displaying each line of
the buffer.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replaces instances of strncpy(...,4) for ACPI_NAMEs.
ACPI_MOVE_NAME optimizes these to a single 32-bit copy on machines
that support misaligned transfers.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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For disassembler, dump the 48 bytes surrounding the invalid
opcode. Fix incorrect table offset reported for invalid opcodes.
Report original 32-bit value for bad ACPI_NAMEs.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add some intelligence to the code that maintains the global
list of allocated memory. The list is now ordered by allocated
memory address, significantly improving performance. When running
AcpiExec on the ASLTS test suite, speed improvements of 3X to 5X
are seen, depending on the platform and/or the environment.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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At control method termination, any currently acquired mutex
objects are force-released. Add a new message for each one that
is released.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Fixes a one byte error in the output buffer calculation.
Feng Tang - ACPICA BZ 849:
https://www.acpica.org/bugzilla/show_bug.cgi?id=849
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This makes all comments consistent.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Improve the commenting of the table.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If a name cannot be created, simply continue on to the next name.
Do not attempt to use the name, do not abort. With assistance
from Colin Ian King.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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No functional changes. Some small fixes within commments. Colin
Ian King.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Maintenance for source code consistency.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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1) Ensure that all functions that use the various TRACE macros
also use the appropriate ACPICA return macros.
2) Ensure that all normal return statements surround the return
expression (value) with parens.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The 20121018 release depends on some unmerged acmaros.h fixes.
This patch includes the fixes made on acmaros.h that will not affect
the generated vmlinux binary.
This patch will not affect the generated vmlinux binary.
This will decrease 157 lines of 20120913 divergence.diff.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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New version of "indent" program will generate different outputs that
will lead to the divergences between the Linux and the ACPICA.
This patch fixes such divergences caused by the "indent" program.
The version of the "indent" used for this patch is "GNU indent 2.2.11".
This patch will not affect the generated vmlinux binary.
This will decrease 581 lines of 20120913 divergence.diff.
Signed-off-by: Robert Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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There are definitions that can been converted into new styles by
the recent AcpiSrc while they remain the old styles in the Linux.
This patch fixes those definitions that will be converted by the
AcpiSrc.
This patch will not affect the generated vmlinux binary.
This will decrease 97 lines of 20120913 divergence.diff.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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There are conflicts in the "acpi_device_id*" definitions between the
Linux and the ACPICA. The definitions of acpi_device_id* in ACPICA
have been changed to the "acpi_pnp_device_id*". This patch changes
the corresponding "acpica_device_id*" definitiions in the Linux.
This patch will not affect the generated vmlinx binary.
This will decrease 298 lines of 20120913 divergence.diff.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Debugger improvements in ACPICA are always ignored by ACPICA Linux
release. This will lead to divergences between Linux and ACPICA.
This patch fixes such unmerged debugger updates.
Following patches are included:
1. Fixed a couple compiler warnings for extra extern
Wed, 14 Mar 2007 21:12:19 +0000
2. Cleanup for internal Reference Object.
Wed, 27 Aug 2008 10:11:30 -0700
3. Debugger: Lock method args for multithread command.
Fri, 24 Apr 2009 12:28:49 -0700
4. Debugger: Add max count argument for Batch command.
Tue, 29 Sep 2009 12:31:58 -0700
5. Add new host interfaces for _OSI support.
Thu, 5 Aug 2010 14:18:28 -0700
6. Increase debugger buffer size for method return objects.
Wed, 17 Nov 2010 13:48:30 -0800
7. Debugger: Add command to display status of global handlers.
Tue, 25 Jan 2011 13:47:58 -0800
8. Debugger: Split large dbcmds.c file.
Wed, 26 Jan 2011 13:03:41 -0800
9. Debugger/AcpiExec: Add support to pass complex args to methods.
Tue, 17 May 2011 13:33:39 -0700
10.Debugger: Add Template command to dump resource templates.
Fri, 28 Oct 2011 14:18:51 -0700
11.Support for custom ACPICA build for ACPI 5.0 reduced hardware.
Wed, 1 Feb 2012 13:18:17 -0800
12.Debugger: Improve command help support.
Wed, 15 Feb 2012 07:59:26 -0800
13.Update ACPI_HW_DEPENDENT* macro invocations.
Wed, 15 Feb 2012 08:14:08 -0800
14.Debugger: Rename function to simplify source code conversion.
Wed, 13 Jun 2012 14:23:06 -0700
15.Debugger: Enhance "Tables" and "Unload" commands.
Fri, 29 Jun 2012 13:10:58 -0700
16.Debugger: update prototype for AcpiDbSleep function.
Fri, 17 Aug 2012 13:43:02 -0700
This patch will not affect the generated vmlinx binary.
This will decrease 264 lines of 20120913 divergence.diff.
Signed-off-by: Robert Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Utility improvements in ACPICA are partial ignored by ACPICA Linux
release. This will lead to divergences between Linux and ACPICA.
This patch ports the entire "utility" into Linux and makes them
igored in the compilation stage by "ACPI_FUTURE_USAGE".
The following "Utility" files have been ported into the Linux:
drivers/acpi/uttrack.c
drivers/acpi/utcache.c
drivers/acpi/utids.c
This patch will not affect the generated vmlinx binary.
This will decrease 274 lines of 20120913 divergence.diff.
Signed-off-by: Robert Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Implemented a change/cleanup for the handling of invalid ACPI names.
Names are now validated and repaired only when
1) entering a new name into the namespace and
2) disassembling a named AML opcode. A warning is only displayed in
debug mode or when the interpreter is in "strict" mode, since some
working machines do in fact contain invalid ACPI names.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Currently, whoever wants to use ACPI device resources has to call
acpi_walk_resources() to browse the buffer returned by the _CRS
method for the given device and create filters passed to that
routine to apply to the individual resource items. This generally
is cumbersome, time-consuming and inefficient. Moreover, it may
be problematic if resource conflicts need to be resolved, because
the different users of _CRS will need to do that in a consistent
way. However, if there are resource conflicts, the ACPI core
should be able to resolve them centrally instead of relying on
various users of acpi_walk_resources() to handle them correctly
together.
For this reason, introduce a new function, acpi_dev_get_resources(),
that can be used by subsystems to obtain a list of struct resource
objects corresponding to the ACPI device resources returned by
_CRS and, if necessary, to apply additional preprocessing routine
to the ACPI resources before converting them to the struct resource
format.
Make the ACPI code that creates platform device objects use
acpi_dev_get_resources() for resource processing instead of executing
acpi_walk_resources() twice by itself, which causes it to be much
more straightforward and easier to follow.
In the future, acpi_dev_get_resources() can be extended to meet
the needs of the ACPI PNP subsystem and other users of _CRS in
the kernel.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Use common routines in drivers/acpi/resource.c to parse ACPI device
resources while creating platform device objects.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Move some code used for parsing ACPI device resources from the PNP
subsystem to the ACPI core, so that other bus types (platform, SPI,
I2C) can use the same routines for parsing resources in a consistent
way, without duplicating code.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Using _UID makes the ACPI platform bus code depend on BIOS to get it
right. If it doesn't we fail to create the platform device as the name
should be unique.
The ACPI core already makes a unique name when it first creates the ACPI
device so we can use that same name as the platform device name instead of
trusting that the BIOS sets the _UIDs correctly.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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With ACPI 5 it is now possible to enumerate traditional SoC
peripherals, like serial bus controllers and slave devices behind
them. These devices are typically based on IP-blocks used in many
existing SoC platforms and platform drivers for them may already
be present in the kernel tree.
To make driver "porting" more straightforward, add ACPI support to
the platform bus type. Instead of writing ACPI "glue" drivers for
the existing platform drivers, register the platform bus type with
ACPI to create platform device objects for the drivers and bind the
corresponding ACPI handles to those platform devices.
This should allow us to reuse the existing platform drivers for the
devices in question with the minimum amount of modifications.
This changeset is based on Mika Westerberg's and Mathias Nyman's
work.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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