Commit Graph

3513 Commits

Author SHA1 Message Date
Kees Cook f756f28b84 drivers/acpi: remove depends on CONFIG_EXPERIMENTAL
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Len Brown <lenb@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-21 14:52:42 -08:00
Yinghai Lu a412a11d6a ACPI / glue: Fix build with ACPI_GLUE_DEBUG set
If ACPI_GLUE_DEBUG is different from 0 (setting this requires a
manual change of glue.c), build breaks because of a leftover
reference to dev->acpi_handle in acpi_platform_notify().  Fix this
by using ACPI_HANDLE(dev) instead as appropriate.

[rjw: Subject and changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-12 14:00:06 +01:00
Rafael J. Wysocki f3fe8bd7b1 Merge branch 'acpi-assorted'
* acpi-assorted:
  ACPI / scan: Do not use dummy HID for system bus ACPI nodes
  ACPI / power: Remove useless message from device registering routine
  ACPI / glue: Update DBG macro to include KERN_DEBUG
  ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result
  ACPI / memhotplug: remove redundant logic of acpi memory hotadd
  ACPI / APEI: Fix the returned value in erst_dbg_read
2013-01-04 23:10:29 +01:00
Rafael J. Wysocki 4f5f64cf0c ACPI / scan: Do not use dummy HID for system bus ACPI nodes
At one point acpi_device_set_id() checks if acpi_device_hid(device)
returns NULL, but that never happens, so system bus devices with an
empty list of PNP IDs are given the dummy HID ("device") instead of
the "system bus HID" ("LNXSYBUS").  Fix the code to use the right
check.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: <stable@vger.kernel.org>
2013-01-04 23:00:54 +01:00
Rafael J. Wysocki 0271f4f117 ACPI / power: Remove useless message from device registering routine
After commit 71fbad6 (PCI/ACPI: Notify PCI devices when their power
resource is turned on) made acpi_pci_bind() call
acpi_power_resource_register_device(), the debug message at the end
of the latter appears in the kernel log for every PCI device that
doesn't happen to have power resources assigned (which is the vast
majority of them).  However, this message is totally useless, because
it doesn't even say which device it is about.  Moreover, it is
misleading, because it only means that the given device has no power
resources, which isn't exceptional at all.

Remove that useless message altogether and simplify
acpi_power_resource_register_device() slightly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-03 13:10:22 +01:00
Joe Perches 23415eb523 ACPI / glue: Update DBG macro to include KERN_DEBUG
Currently these DBG statements are emitted at KERN_DEFAULT.
Change the macro to emit at KERN_DEBUG.

This can help avoid unexpected message interleaving.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-03 13:10:21 +01:00
Rafael J. Wysocki 5cc36c724e ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result
Since the return value of acpi_bus_get_device() is not of type
acpi_status, ACPI_SUCCESS() should not be used for checking its
return value.  Fix that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2013-01-03 13:10:21 +01:00
Liu Jinsong 8611ea5f5d ACPI / memhotplug: remove redundant logic of acpi memory hotadd
When memory hotadd, acpi_memory_enable_device has already been done
at drv->ops.add (acpi_memory_device_add), no need to do it again
at notify callback.

At acpi_memory_enable_device, acpi_memory_get_device_resources
is also a redundant action, since it has been done at drv->ops.add.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-03 13:10:21 +01:00
Adrian Huang 6780aa683d ACPI / APEI: Fix the returned value in erst_dbg_read
If the persistent store is empty initially, the function 'erst_dbg_read'
returns a nonzero value. The better way is to return a zero indicating the
read operation reaches EOF.

Tested on two different servers.

Signed-off-by: Adrian Huang <adrian.huang@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-03 13:10:20 +01:00
Lv Zheng 04fbfca5a1 ACPICA: Remove useless mini-C library.
The mini-C library implementation is used by the embedded ACPICA users
other than Linux.  It was added to the kernel source to make it easier
to incorporate future ACPICA changes, but as it turns our we can avoid
carrying it thanks to some ACPICA release process tweaks, so remove
drivers/acpi/acpica/utclib.c from the kernel source tree.

[rjw: Modified the changelog slightly.]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-03 13:09:10 +01:00
Linus Torvalds 18dd0bf22b Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 ACPI update from Peter Anvin:
 "This is a patchset which didn't make the last merge window.  It adds a
  debugging capability to feed ACPI tables via the initramfs.

  On a grander scope, it formalizes using the initramfs protocol for
  feeding arbitrary blobs which need to be accessed early to the kernel:
  they are fed first in the initramfs blob (lots of bootloaders can
  concatenate this at boot time, others can use a single file) in an
  uncompressed cpio archive using filenames starting with "kernel/".

  The ACPI maintainers requested that this patchset be fed via the x86
  tree rather than the ACPI tree as the footprint in the general x86
  code is much bigger than in the ACPI code proper."

* 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  X86 ACPI: Use #ifdef not #if for CONFIG_X86 check
  ACPI: Fix build when disabled
  ACPI: Document ACPI table overriding via initrd
  ACPI: Create acpi_table_taint() function to avoid code duplication
  ACPI: Implement physical address table override
  ACPI: Store valid ACPI tables passed via early initrd in reserved memblock areas
  x86, acpi: Introduce x86 arch specific arch_reserve_mem_area() for e820 handling
  lib: Add early cpio decoder
2012-12-14 10:03:23 -08:00
Linus Torvalds 193c0d6825 PCI changes for the v3.8 merge window:
Host bridge hotplug:
     - Untangle _PRT from struct pci_bus (Bjorn Helgaas)
     - Request _OSC control before scanning root bus (Taku Izumi)
     - Assign resources when adding host bridge (Yinghai Lu)
     - Remove root bus when removing host bridge (Yinghai Lu)
     - Remove _PRT during hot remove (Yinghai Lu)
 
   SRIOV
     - Add sysfs knobs to control numVFs (Don Dutile)
 
   Power management
     - Notify devices when power resource turned on (Huang Ying)
 
   Bug fixes
     - Work around broken _SEG on HP xw9300 (Bjorn Helgaas)
     - Keep runtime PM enabled for unbound PCI devices (Huang Ying)
     - Fix Optimus dual-GPU runtime D3 suspend issue (Dave Airlie)
     - Fix xen frontend shutdown issue (David Vrabel)
     - Work around PLX PCI 9050 BAR alignment erratum (Ian Abbott)
 
   Miscellaneous
     - Add GPL license for drivers/pci/ioapic (Andrew Cooks)
     - Add standard PCI-X, PCIe ASPM register #defines (Bjorn Helgaas)
     - NumaChip remote PCI support (Daniel Blueman)
     - Fix PCIe Link Capabilities Supported Link Speed definition (Jingoo Han)
     - Convert dev_printk() to dev_info(), etc (Joe Perches)
     - Add support for non PCI BAR ROM data (Matthew Garrett)
     - Add x86 support for host bridge translation offset (Mike Yoknis)
     - Report success only when every driver supports AER (Vijay Pandarathil)
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Merge tag 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI update from Bjorn Helgaas:
 "Host bridge hotplug:
   - Untangle _PRT from struct pci_bus (Bjorn Helgaas)
   - Request _OSC control before scanning root bus (Taku Izumi)
   - Assign resources when adding host bridge (Yinghai Lu)
   - Remove root bus when removing host bridge (Yinghai Lu)
   - Remove _PRT during hot remove (Yinghai Lu)

  SRIOV
    - Add sysfs knobs to control numVFs (Don Dutile)

  Power management
   - Notify devices when power resource turned on (Huang Ying)

  Bug fixes
   - Work around broken _SEG on HP xw9300 (Bjorn Helgaas)
   - Keep runtime PM enabled for unbound PCI devices (Huang Ying)
   - Fix Optimus dual-GPU runtime D3 suspend issue (Dave Airlie)
   - Fix xen frontend shutdown issue (David Vrabel)
   - Work around PLX PCI 9050 BAR alignment erratum (Ian Abbott)

  Miscellaneous
   - Add GPL license for drivers/pci/ioapic (Andrew Cooks)
   - Add standard PCI-X, PCIe ASPM register #defines (Bjorn Helgaas)
   - NumaChip remote PCI support (Daniel Blueman)
   - Fix PCIe Link Capabilities Supported Link Speed definition (Jingoo
     Han)
   - Convert dev_printk() to dev_info(), etc (Joe Perches)
   - Add support for non PCI BAR ROM data (Matthew Garrett)
   - Add x86 support for host bridge translation offset (Mike Yoknis)
   - Report success only when every driver supports AER (Vijay
     Pandarathil)"

Fix up trivial conflicts.

* tag 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits)
  PCI: Use phys_addr_t for physical ROM address
  x86/PCI: Add NumaChip remote PCI support
  ath9k: Use standard #defines for PCIe Capability ASPM fields
  iwlwifi: Use standard #defines for PCIe Capability ASPM fields
  iwlwifi: collapse wrapper for pcie_capability_read_word()
  iwlegacy: Use standard #defines for PCIe Capability ASPM fields
  iwlegacy: collapse wrapper for pcie_capability_read_word()
  cxgb3: Use standard #defines for PCIe Capability ASPM fields
  PCI: Add standard PCIe Capability Link ASPM field names
  PCI/portdrv: Use PCI Express Capability accessors
  PCI: Use standard PCIe Capability Link register field names
  x86: Use PCI setup data
  PCI: Add support for non-BAR ROMs
  PCI: Add pcibios_add_device
  EFI: Stash ROMs if they're not in the PCI BAR
  PCI: Add and use standard PCI-X Capability register names
  PCI/PM: Keep runtime PM enabled for unbound PCI devices
  xen-pcifront: Handle backend CLOSED without CLOSING
  PCI: SRIOV control and status via sysfs (documentation)
  PCI/AER: Report success only when every device has AER-aware driver
  ...
2012-12-13 12:14:47 -08:00
Linus Torvalds a2013a13e6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial branch from Jiri Kosina:
 "Usual stuff -- comment/printk typo fixes, documentation updates, dead
  code elimination."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  HOWTO: fix double words typo
  x86 mtrr: fix comment typo in mtrr_bp_init
  propagate name change to comments in kernel source
  doc: Update the name of profiling based on sysfs
  treewide: Fix typos in various drivers
  treewide: Fix typos in various Kconfig
  wireless: mwifiex: Fix typo in wireless/mwifiex driver
  messages: i2o: Fix typo in messages/i2o
  scripts/kernel-doc: check that non-void fcts describe their return value
  Kernel-doc: Convention: Use a "Return" section to describe return values
  radeon: Fix typo and copy/paste error in comments
  doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
  various: Fix spelling of "asynchronous" in comments.
  Fix misspellings of "whether" in comments.
  eisa: Fix spelling of "asynchronous".
  various: Fix spelling of "registered" in comments.
  doc: fix quite a few typos within Documentation
  target: iscsi: fix comment typos in target/iscsi drivers
  treewide: fix typo of "suport" in various comments and Kconfig
  treewide: fix typo of "suppport" in various comments
  ...
2012-12-13 12:00:02 -08:00
Linus Torvalds 50851c6248 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management update from Zhang Rui:
 "Highlights:

   - Introduction of thermal policy support, together with three new
     thermal governors, including step_wise, user_space, fire_share.

   - Introduction of ST-Ericsson db8500_thermal driver and ST-Ericsson
     db8500_cpufreq_cooling driver.

   - Thermal Kconfig file and Makefile refactor.

   - Fixes for generic thermal layer, generic cpucooling, rcar thermal
     driver and Exynos thermal driver."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (36 commits)
  Thermal: Fix DEFAULT_THERMAL_GOVERNOR
  Thermal: fix a NULL pointer dereference when generic thermal layer is built as a module
  thermal: rcar: add rcar_zone_to_priv() macro
  thermal: rcar: fixup the unit of temperature
  thermal: cpu cooling: allow module builds
  thermal: cpu cooling: use const parameter while registering
  Thermal: Add ST-Ericsson DB8500 thermal properties and platform data.
  Thermal: Add ST-Ericsson DB8500 thermal driver.
  drivers/thermal/Makefile refactor
  Exynos: Add missing dependency
  Refactor drivers/thermal/Kconfig
  thermal: cpu_cooling: Make 'notify_device' static
  Thermal: Remove the cooling_cpufreq_list.
  Thermal: fix bug of counting cpu frequencies.
  Thermal: add indent for code alignment.
  thermal: rcar_thermal: remove explicitly used devm_kfree/iounap()
  thermal: user_space: Add missing static storage class specifiers
  thermal: fair_share: Add missing static storage class specifiers
  thermal: step_wise: Add missing static storage class specifiers
  Thermal: Fix oops and unlocking in thermal_sys.c
  ...
2012-12-12 07:57:13 -08:00
Linus Torvalds 139353ffbe Trivial fix for error injection code using ACPI5 version of EINJ
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Merge tag 'please-pull-einj-fix-for-acpi5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull ACPI5 error injection fix from Tony Luck:
 "Trivial fix for error injection code using ACPI5 version of EINJ"

* tag 'please-pull-einj-fix-for-acpi5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  ACPI, APEI, EINJ: Add missed ACPI5 support for error trigger table
2012-12-12 07:54:53 -08:00
Linus Torvalds 251a8cfeda Patch series to allow EFI variable backend to pstore
to hold multiple records.
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Merge tag 'please-pull-pstore_mevent' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull pstore fixes from Tony Luck:
 "Patch series to allow EFI variable backend to pstore to hold multiple
  records."

* tag 'please-pull-pstore_mevent' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  efi_pstore: Add a format check for an existing variable name at erasing time
  efi_pstore: Add a format check for an existing variable name at reading time
  efi_pstore: Add a sequence counter to a variable name
  efi_pstore: Add ctime to argument of erase callback
  efi_pstore: Remove a logic erasing entries from a write callback to hold multiple logs
  efi_pstore: Add a logic erasing entries to an erase callback
  efi_pstore: Check remaining space with QueryVariableInfo() before writing data
2012-12-12 07:50:59 -08:00
Linus Torvalds cff2f741b8 Driver core updates for 3.8-rc1
Here's the large driver core updates for 3.8-rc1.
 
 The biggest thing here is the various __dev* marking removals.  This is
 going to be a pain for the merge with different subsystem trees, I know,
 but all of the patches included here have been ACKed by their various
 subsystem maintainers, as they wanted them to go through here.
 
 If this is too much of a pain, I can pull all of them out of this tree
 and just send you one with the other fixes/updates and then, after
 3.8-rc1 is out, do the rest of the removals to ensure we catch them all,
 it's up to you.  The merges should all be trivial, and Stephen has been
 doing them all in linux-next for a few weeks now quite easily.
 
 Other than the __dev* marking removals, there's nothing major here, some
 firmware loading updates and other minor things in the driver core.
 
 All of these have (much to Stephen's annoyance), been in linux-next for
 a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg Kroah-Hartman:
 "Here's the large driver core updates for 3.8-rc1.

  The biggest thing here is the various __dev* marking removals.  This
  is going to be a pain for the merge with different subsystem trees, I
  know, but all of the patches included here have been ACKed by their
  various subsystem maintainers, as they wanted them to go through here.

  If this is too much of a pain, I can pull all of them out of this tree
  and just send you one with the other fixes/updates and then, after
  3.8-rc1 is out, do the rest of the removals to ensure we catch them
  all, it's up to you.  The merges should all be trivial, and Stephen
  has been doing them all in linux-next for a few weeks now quite
  easily.

  Other than the __dev* marking removals, there's nothing major here,
  some firmware loading updates and other minor things in the driver
  core.

  All of these have (much to Stephen's annoyance), been in linux-next
  for a while.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio
update.

* tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits)
  modpost.c: Stop checking __dev* section mismatches
  init.h: Remove __dev* sections from the kernel
  acpi: remove use of __devinit
  PCI: Remove __dev* markings
  PCI: Always build setup-bus when PCI is enabled
  PCI: Move pci_uevent into pci-driver.c
  PCI: Remove CONFIG_HOTPLUG ifdefs
  unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs
  sh/PCI: Remove CONFIG_HOTPLUG ifdefs
  powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs
  mips/PCI: Remove CONFIG_HOTPLUG ifdefs
  microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs
  dma: remove use of __devinit
  dma: remove use of __devexit_p
  firewire: remove use of __devinitdata
  firewire: remove use of __devinit
  leds: remove use of __devexit
  leds: remove use of __devinit
  leds: remove use of __devexit_p
  mmc: remove use of __devexit
  ...
2012-12-11 13:13:55 -08:00
Rafael J. Wysocki 1a14f30b36 Merge branch 'acpi-general'
* acpi-general:
  pnpacpi: fix incorrect TEST_ALPHA() test
  ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
  ACPI : do not use Lid and Sleep button for S5 wakeup
2012-12-07 23:14:35 +01:00
Rafael J. Wysocki 583bdc5982 Merge branch 'acpi-enumeration'
* acpi-enumeration:
  ACPI: add Haswell LPSS devices to acpi_platform_device_ids list
  ACPI: add documentation about ACPI 5 enumeration
2012-12-07 23:14:25 +01:00
Mika Westerberg 5e7779f039 ACPI: add Haswell LPSS devices to acpi_platform_device_ids list
All devices behind Haswell LPSS (Low Power Subsystem) should be represented
as platform devices so add them to the acpi_platform_device_ids list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-12-07 23:12:01 +01:00
Chen Gong 112f1fc08d ACPI, APEI, EINJ: Add missed ACPI5 support for error trigger table
To handle error trigger table correctly, memory region must be
removed from request region. We had a series of patches to do this
culminating in:
	commit b4e008dc5
	ACPI, APEI, EINJ, Refine the fix of resource conflict

but when ACPI5 support was added, we missed updating this area. So
when using EINJ table on an ACPI5 enabled machine, we get following error:

APEI: Can not request [mem 0x526b80000-0x526b80007] for APEI EINJ
Trigger registers

Fix this by checking for the acpi5 case and using the same code
that was added earlier.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-12-07 11:50:02 -08:00
Zhang Rui 129ff8f8d5 ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
Or else the laptop will boot with a dimmed screen.

References: https://bugzilla.kernel.org/show_bug.cgi?id=51141
Tested-by: Stefan Nagy <public@stefan-nagy.at>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-12-04 23:30:19 +01:00
Zhang Rui b7e383046c ACPI : do not use Lid and Sleep button for S5 wakeup
When system enters power off, the _PSW of Lid device is enabled.
But this may cause the system to reboot instead of power off.

A proper way to fix this is to always disable lid wakeup capability for S5.

References: https://bugzilla.kernel.org/show_bug.cgi?id=35262
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-12-04 23:23:16 +01:00
Rafael J. Wysocki 6b728f1a90 Merge branch 'acpi-general'
* acpi-general:
  ACPI / PNP: Do not crash due to stale pointer use during system resume
  ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist
  ACPI: do acpisleep dmi check when CONFIG_ACPI_SLEEP is set
2012-12-04 13:46:08 +01:00
Lan Tianyu d0c2ce16be ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist
The ACPI video driver can't control backlight correctly on
Asus UL30VT.  Vendor driver (asus-laptop) can work.  This patch is to
add "Asus UL30VT" to ACPI video detect blacklist in order to use
asus-laptop for video control on the "Asus UL30VT" rather than ACPI
video driver.

References: https://bugzilla.kernel.org/show_bug.cgi?id=32592
Reported-by: Alex Williamson <alex.williamson@redhat.com>
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>
2012-11-30 13:02:50 +01:00
Zhang Rui 0ac1b1d7b7 ACPI: do acpisleep dmi check when CONFIG_ACPI_SLEEP is set
The current acpisleep DMI checks only run when CONFIG_SUSPEND is set.
And this may break hibernation on some platforms when CONFIG_SUSPEND
is cleared.

Move acpisleep DMI check into #ifdef CONFIG_ACPI_SLEEP instead.

[rjw: Added acpi_sleep_dmi_check() and rebased on top of earlier
 patches adding entries to acpisleep_dmi_table[].]
References: https://bugzilla.kernel.org/show_bug.cgi?id=45921
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-30 12:57:03 +01:00
Rafael J. Wysocki 9ee71f513c Merge branch 'pm-cpuidle'
* pm-cpuidle:
  cpuidle: Measure idle state durations with monotonic clock
  cpuidle: fix a suspicious RCU usage in menu governor
  cpuidle: support multiple drivers
  cpuidle: prepare the cpuidle core to handle multiple drivers
  cpuidle: move driver checking within the lock section
  cpuidle: move driver's refcount to cpuidle
  cpuidle: fixup device.h header in cpuidle.h
  cpuidle / sysfs: move structure declaration into the sysfs.c file
  cpuidle: Get typical recent sleep interval
  cpuidle: Set residency to 0 if target Cstate not enter
  cpuidle: Quickly notice prediction failure in general case
  cpuidle: Quickly notice prediction failure for repeat mode
  cpuidle / sysfs: move kobj initialization in the syfs file
  cpuidle / sysfs: change function parameter
2012-11-29 21:46:14 +01:00
Rafael J. Wysocki d4c091f13d Merge branch 'acpi-general'
* acpi-general: (38 commits)
  ACPI / thermal: _TMP and _CRT/_HOT/_PSV/_ACx dependency fix
  ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device()
  ACPI: Fix logging when no pci_irq is allocated
  ACPI: Update Dock hotplug error messages
  ACPI: Update Container hotplug error messages
  ACPI: Update Memory hotplug error messages
  ACPI: Update CPU hotplug error messages
  ACPI: Add acpi_handle_<level>() interfaces
  ACPI: remove use of __devexit
  ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist.
  ACPI / battery: Correct battery capacity values on Thinkpads
  Revert "ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info"
  ACPI: create _SUN sysfs file
  ACPI / memhotplug: bind the memory device when the driver is being loaded
  ACPI / memhotplug: don't allow to eject the memory device if it is being used
  ACPI / memhotplug: free memory device if acpi_memory_enable_device() failed
  ACPI / memhotplug: fix memory leak when memory device is unbound from acpi_memhotplug
  ACPI / memhotplug: deal with eject request in hotplug queue
  ACPI / memory-hotplug: add memory offline code to acpi_memory_device_remove()
  ACPI / memory-hotplug: call acpi_bus_trim() to remove memory device
  ...

Conflicts:
	include/linux/acpi.h (two additions at the end of the same file)
2012-11-29 21:43:06 +01:00
Rafael J. Wysocki 08ab72980a Merge branch 'acpica'
* acpica: (26 commits)
  ACPICA: Update version to 20121018
  ACPICA: AcpiGetObjectInfo: Add support for ACPI 5 _SUB method
  ACPICA: Update for 64-bit generation of recent error message changes
  ACPICA: Fix externalize name to complete migration to ACPI_MOVE_NAME
  ACPICA: Add starting offset parameter to common dump buffer routine
  ACPICA: Deploy ACPI_MOVE_NAME across ACPICA source base
  ACPICA: Update support for ACPI 5 MPST table
  ACPICA: Enhance error reporting for invalid opcodes and bad ACPI_NAMEs
  ACPICA: Add ACPI_MOVE_NAME macro to optimize 4-byte ACPI_NAME copies
  ACPICA: AcpiExec: Improve algorithm for tracking memory leaks
  ACPICA: Add debug print message for mutex objects that are force-released
  ACPICA: Resource Mgr: Small fix for buffer size calculation
  ACPICA: Remove extra spaces after periods in the Intel license
  ACPICA: Remove extra spaces after periods within comments
  ACPICA: Update local C library module comments for ASCII table
  ACPICA: Fix for predefined name loop during ACPICA initialization
  ACPICA: Fix some typos in comments
  ACPICA: ACPICA core: Cleanup empty lines at file start and end
  ACPICA: Audit/update for ACPICA return macros and debug depth counter
  ACPICA: Fix unmerged acmacros.h divergences.
  ...
2012-11-29 21:41:41 +01:00
Bill Pemberton da095fd3d5 acpi: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28 13:19:49 -08:00
Zhang Rui 261cba2deb ACPI / thermal: _TMP and _CRT/_HOT/_PSV/_ACx dependency fix
On some platforms, _TMP and _CRT/_HOT/_PSV/_ACx have dependency.
And there is no way for OS to detect this dependency.

commit 9bcb811896 shows us a problem
that _TMP must be evaluate after _CRT/_HOT/_PSV/_ACx, or else
firmware will shutdown the system.

But the machine in https://bugzilla.kernel.org/show_bug.cgi?id=43284
shows us that _PSV would return valid value only if _TMP has been
evaluated once.

With this patch, all of the control methods will be evaluated once,
in the _CRT/_HOT/_PSV/_CRT/_TMP order, before they are actually used.

[rjw: Added a local variable for the handle and modified the loop
 slightly.]
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: katabami <katabami@lavabit.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 20:42:11 +01:00
Julius Werner a474a51549 cpuidle: Measure idle state durations with monotonic clock
Many cpuidle drivers measure their time spent in an idle state by
reading the wallclock time before and after idling and calculating the
difference. This leads to erroneous results when the wallclock time gets
updated by another processor in the meantime, adding that clock
adjustment to the idle state's time counter.

If the clock adjustment was negative, the result is even worse due to an
erroneous cast from int to unsigned long long of the last_residency
variable. The negative 32 bit integer will zero-extend and result in a
forward time jump of roughly four billion milliseconds or 1.3 hours on
the idle state residency counter.

This patch changes all affected cpuidle drivers to either use the
monotonic clock for their measurements or make use of the generic time
measurement wrapper in cpuidle.c, which was already working correctly.
Some superfluous CLIs/STIs in the ACPI code are removed (interrupts
should always already be disabled before entering the idle function, and
not get reenabled until the generic wrapper has performed its second
measurement). It also removes the erroneous cast, making sure that
negative residency values are applied correctly even though they should
not appear anymore.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Tested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 14:17:58 +01:00
Andy Shevchenko 752cad760b ACPI: remove unnecessary INIT_LIST_HEAD
There is no need to initialize the node before appending it to the list.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 13:49:36 +01:00
Andy Shevchenko 5923f986ac ACPI / platform: include missed header into acpi_platform.c
The internal.h declares the acpi_create_platform_device(). Without
that include we get a following warning:

drivers/acpi/acpi_platform.c:133:24: warning: symbol 'acpi_create_platform_device' was not declared. Should it be static?

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-27 13:44:58 +01:00
Rafael J. Wysocki 45c36462ae Merge branch 'acpi-dev-pm' into acpi-enumeration
Subsequent commits in this branch will depend on 'acpi-dev-pm'
material.
2012-11-27 13:42:42 +01:00
Seiji Aguchi 755d4fe465 efi_pstore: Add a sequence counter to a variable name
[Issue]

Currently, a variable name, which identifies each entry, consists of type, id and ctime.
But if multiple events happens in a short time, a second/third event may fail to log because
efi_pstore can't distinguish each event with current variable name.

[Solution]

A reasonable way to identify all events precisely is introducing a sequence counter to
the variable name.

The sequence counter has already supported in a pstore layer with "oopscount".
So, this patch adds it to a variable name.
Also, it is passed to read/erase callbacks of platform drivers in accordance with
the modification of the variable name.

  <before applying this patch>
 a variable name of first event: dump-type0-1-12345678
 a variable name of second event: dump-type0-1-12345678

  type:0
  id:1
  ctime:12345678

 If multiple events happen in a short time, efi_pstore can't distinguish them because
 variable names are same among them.

  <after applying this patch>

 it can be distinguishable by adding a sequence counter as follows.

 a variable name of first event: dump-type0-1-1-12345678
 a variable name of Second event: dump-type0-1-2-12345678

  type:0
  id:1
  sequence counter: 1(first event), 2(second event)
  ctime:12345678

In case of a write callback executed in pstore_console_write(), "0" is added to
an argument of the write callback because it just logs all kernel messages and
doesn't need to care about multiple events.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-11-26 16:07:44 -08:00
Seiji Aguchi a9efd39cd5 efi_pstore: Add ctime to argument of erase callback
[Issue]

Currently, a variable name, which is used to identify each log entry, consists of type,
id and ctime. But an erase callback does not use ctime.

If efi_pstore supported just one log, type and id were enough.
However, in case of supporting multiple logs, it doesn't work because
it can't distinguish each entry without ctime at erasing time.

 <Example>

 As you can see below, efi_pstore can't differentiate first event from second one without ctime.

 a variable name of first event: dump-type0-1-12345678
 a variable name of second event: dump-type0-1-23456789

  type:0
  id:1
  ctime:12345678, 23456789

[Solution]

This patch adds ctime to an argument of an erase callback.

It works across reboots because ctime of pstore means the date that the record was originally stored.
To do this, efi_pstore saves the ctime to variable name at writing time and passes it to pstore
at reading time.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-11-26 16:02:12 -08:00
Rafael J. Wysocki b88ce2a415 ACPI / PM: Allow attach/detach routines to change device power states
Make it possible to ask the routines used for adding/removing devices
to/from the general ACPI PM domain, acpi_dev_pm_attach() and
acpi_dev_pm_detach(), respectively, to change the power states of
devices so that they are put into the full-power state automatically
by acpi_dev_pm_attach() and into the lowest-power state available
automatically by acpi_dev_pm_detach().

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>
2012-11-26 10:03:06 +01:00
Adrian Hunter 142b007b65 ACPI: add SDHCI to ACPI platform devices
Add the generic ACPI SDHCI device ID to acpi_platform_device_ids[]
to make the ACPI core create a platform device object for the ACPI
device node of that ID.

[rjw: Added the changelog.]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-23 21:11:47 +01:00
Mika Westerberg 907ddf89d0 i2c / ACPI: add ACPI enumeration support
ACPI 5 introduced I2cSerialBus resource that makes it possible to enumerate
and configure the I2C slave devices behind the I2C controller. This patch
adds helper functions to support I2C slave enumeration.

An ACPI enabled I2C controller driver only needs to call acpi_i2c_register_devices()
in order to get its slave devices enumerated, created and bound to the
corresponding ACPI handle.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-23 12:23:40 +01:00
Cyril Roelandt 05bce79e6d ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device()
The LEN variable is unsigned, therefore checking whether it is less than 0 is
useless. Also drop the LEN variable, since the COUNT parameter can be used
instead.

[rjw: Changed the subject.]
Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-22 23:20:31 +01:00
Joe Perches 66fd3835ac ACPI: Fix logging when no pci_irq is allocated
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>
2012-11-21 23:56:15 +01:00
Aaron Lu 1399dfcdfe ACPI / PM: Introduce os_accessible flag for power_state
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>
2012-11-21 23:33:40 +01:00
Toshi Kani cd73018f62 ACPI: Update Dock hotplug error messages
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>
2012-11-21 23:20:23 +01:00
Toshi Kani 3d78bd9ef7 ACPI: Update Container hotplug error messages
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>
2012-11-21 23:20:23 +01:00
Toshi Kani ab6c57099d ACPI: Update Memory hotplug error messages
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>
2012-11-21 23:20:22 +01:00
Toshi Kani 47db4547ff ACPI: Update CPU hotplug error messages
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>
2012-11-21 23:20:22 +01:00
Toshi Kani fbfddae696 ACPI: Add acpi_handle_<level>() interfaces
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>
2012-11-21 23:20:22 +01:00
Bill Pemberton b59bc2fbb4 ACPI: remove use of __devexit
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>
2012-11-21 23:13:09 +01:00
Lan Tianyu 876ab79055 ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist.
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>
2012-11-21 23:12:12 +01:00