Commit graph

334 commits

Author SHA1 Message Date
Len Brown
6d1f23f204 Merge branch 'pnp' into release 2011-01-12 04:59:44 -05:00
Rafael J. Wysocki
cc8e7a355c PNP / ACPI: Use DEVICE_ACPI_HANDLE() for device ACPI handle access
The PNP ACPI driver squirrels the ACPI handles of PNP devices' ACPI
companions, but this isn't correct, because those handles should be
accessed using the DEVICE_ACPI_HANDLE() macro operating on struct
device objects.

Using DEVICE_ACPI_HANDLE() in the PNP ACPI driver instead of the
driver's own copies of the ACPI handles allows us to avoid a problem
with docking stations where a machine docked before suspend to RAM
and undocked while suspended crashes during the subsequent resume (in
that case the ACPI companion of the PNP device in question doesn't
exist any more while the device is being resumed).  It also allows us
to avoid the problem where suspend to RAM fails when the machine was
undocked while suspended before (again, the ACPI companion of the PNP
device is not present any more while it is being suspended).

This change doesn't fix all of the the PNP ACPI driver's problems
with PNP devices in docking stations (generally speaking, the driver
has no idea that devices can come and go and doesn't even attempt to
handle such events), but at least it makes suspend work for the
users of docking stations who don't use the PNP devices located in
there.

References: https://bugzilla.kernel.org/show_bug.cgi?id=15100

Reported-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2011-01-11 15:20:40 -05:00
Jan Beulich
66c3ec4f1f ACPI/PNP: avoid section mismatch warning
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-12-11 02:01:47 -05:00
Arnd Bergmann
451a3c24b0 BKL: remove extraneous #include <smp_lock.h>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.

Remove this too as a cleanup.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17 08:59:32 -08:00
Thomas Renninger
cdefba03e4 PNP: Set up pnp_debug via module and not via boot param.
Cleanup only, no functional change (pnp.debug can be enabled
and disabled at runtime, but that's not a real enhancement).

This one depends on another PNP cleanup patch:
PNP: Compile all pnp built-in stuff in one module namespace

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-27 02:23:59 -04:00
Thomas Renninger
803711afdb PNP: Compile all pnp built-in stuff in one module namespace
This is cleanup mostly, nothing urgent.
I came up with it when looking at dynamic debug which can
enable pr_debug messages at runtime or boot param
for a specific module.

Advantages:
  - Any pnp code can make use of the moduleparam.h interface, the modules
    will show up as pnp.param.
  - Passing pnp.ddebug as kernel boot param will enable all pnp debug messages
    with my previous patch and CONFIG_DYNAMIC_DEBUG enabled.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-27 02:23:44 -04:00
Linus Torvalds
474829e875 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (53 commits)
  ACPI: install ACPI table handler before any dynamic tables being loaded
  ACPI / PM: Blacklist another machine that needs acpi_sleep=nonvs
  ACPI: Page based coalescing of I/O remappings optimization
  ACPI: Convert simple locking to RCU based locking
  ACPI: Pre-map 'system event' related register blocks
  ACPI: Add interfaces for ioremapping/iounmapping ACPI registers
  ACPI: Maintain a list of ACPI memory mapped I/O remappings
  ACPI: Fix ioremap size for MMIO reads and writes
  ACPI / Battery: Return -ENODEV for unknown values in get_property()
  ACPI / PM: Fix reference counting of power resources
  Subject: [PATCH] ACPICA: Fix Scope() op in module level code
  ACPI battery: support percentage battery remaining capacity
  ACPI: Make Embedded Controller command timeout delay configurable
  ACPI dock: move some functions to .init.text
  ACPI: thermal: remove unused limit code
  ACPI: static sleep_states[] and acpi_gts_bfs_check
  ACPI: remove dead code
  ACPI: delete dedicated MAINTAINERS entries for ACPI EC and BATTERY drivers
  ACPI: Only processor needs CPU_IDLE
  ACPICA: Update version to 20101013
  ...
2010-10-26 17:28:37 -07:00
Len Brown
8c654bb808 Merge branch 'pnp-log' into release 2010-10-25 02:13:48 -04:00
Len Brown
b10b977b79 Merge branch 'pnpacpi-invalid-device-id' into release 2010-10-25 02:13:44 -04:00
Linus Torvalds
229aebb873 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
	drivers/char/ipmi/ipmi_si_intf.c
	drivers/usb/gadget/rndis.c
	net/irda/irnet/irnet_ppp.c
2010-10-24 13:41:39 -07:00
Justin P. Mattock
631dd1a885 Update broken web addresses in the kernel.
The patch below updates broken web addresses in the kernel

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-18 11:03:14 +02:00
Thomas Renninger
620e112cfe ACPI/PNP: A HID value of an object never changes -> make it const
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-01 19:28:51 -04:00
Dmitry Torokhov
420a0f6637 PNPACPI: cope with invalid device IDs
If primary ID (HID) is invalid try locating first valid ID on compatible
ID list before giving up.

This helps, for example, to recognize i8042 AUX port on Sony Vaio VPCZ1
which uses SNYSYN0003 as HID. Without the patch users are forced to
boot with i8042.nopnp to make use of their touchpads.

Tested-by: Jan-Hendrik Zab <jan@jhz.name>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-01 02:08:59 -04:00
Bjorn Helgaas
c1f3f28196 PNP: log PNP resources, as we do for PCI
ACPI devices are often involved in address space conflicts with PCI devices,
so I think it's worth logging the resources they use.  Otherwise we have to
depend on lspnp or groping around in sysfs to find them.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-01 01:59:34 -04:00
Arnd Bergmann
6117d2130c isapnp: BKL removal
Remove BKL use from isapnp_proc_bus_lseek(), like was done for
proc_bus_pci_lseek() a long time ago and recently for Zorro
by Geert Uytterhoeven.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jaroslav Kysela <perex@perex.cz>
2010-09-26 16:25:52 +02:00
Alan Stern
b14e033e17 PNPACPI: Add support for remote wakeup
This patch (as1354) adds remote-wakeup support to the pnpacpi driver.
The new can_wakeup method also allows other PNP protocol drivers
(pnpbios or iaspnp) to add wakeup support, but I don't know enough
about how they work to actually do it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-07-19 01:58:48 +02:00
Len Brown
1468cf0542 Merge branches 'bugzilla-14337', 'bugzilla-14998', 'bugzilla-15407', 'bugzilla-15903' and 'misc-2.6.34' into release 2010-05-06 22:04:31 -04:00
Bjorn Helgaas
11439a6fd9 PNP: don't check for conflicts with bridge windows
With fa35b4926, I broke a lot of PNP resource assignment.  That commit made
PNPACPI include bridge windows as PNP resources, and PNP resource assignment
treats any enabled overlapping PNP resources as conflicts.  Since PCI host
bridge windows typically include most of the I/O port space, this makes PNP
port assigments fail.

The PCI host bridge driver will eventually use those PNP window resources,
so we should make PNP ignore them when checking for conflicts.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=15903

Reported-and-tested-by: Pavel Kysilka <goldenfish@linuxsoft.cz>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-06 02:08:47 -04:00
Bjorn Helgaas
f238b414a7 PNPACPI: compute Address Space length rather than using _LEN
ACPI _CRS Address Space Descriptors have _MIN, _MAX, and _LEN.  Linux has
been computing Address Spaces as [_MIN to _MIN + _LEN - 1].  Based on the
tests in the bug reports below, Windows apparently uses [_MIN to _MAX].

Per spec (ACPI 4.0, Table 6-40), for _CRS fixed-size, fixed location
descriptors, "_LEN must be (_MAX - _MIN + 1)", and when that's true, it
doesn't matter which way we compute the end.  But of course, there are
BIOSes that don't follow this rule, and we're better off if Linux handles
those exceptions the same way as Windows.

This patch makes Linux use [_MIN to _MAX], as Windows seems to do.  This
effectively reverts 3162b6f0c5 and replaces it with simpler code.

    https://bugzilla.kernel.org/show_bug.cgi?id=14337 (round)
    https://bugzilla.kernel.org/show_bug.cgi?id=15480 (truncate)

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-04-28 21:44:49 -04:00
Len Brown
c25f7cf203 Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release 2010-04-06 17:06:22 -04:00
Bjorn Helgaas
3162b6f0c5 PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1
The ACPI spec (sec 6.4.3.5 in v4.0) requires that for Address Space Resource
Descriptors, _LEN <= _MAX - _MIN + 1 in all cases, but there are BIOSes that
violate this.  We experimentally determined that Windows truncates the
resource so it doesn't extend past _MAX, so let's do the same thing in
Linux.

http://bugzilla.kernel.org/show_bug.cgi?id=15480

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-04-04 01:33:43 -04:00
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Bjorn Helgaas
7e0e9c0427 PNPACPI: add bus number support
Add support for bus number resources.  This is for bridges with a range of
bus numbers behind them.  Previously, PNP ignored bus number resources.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-03-14 20:08:38 -04:00
Bjorn Helgaas
fa35b49260 PNPACPI: add window support
Add support for resource windows.  This is for bridge resources, i.e.,
regions where a bridge forwards transactions from the primary to the
secondary side.  This does not add support for *setting* windows via
the /proc interface.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-03-14 20:08:37 -04:00
Linus Torvalds
288f02bbb6 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (117 commits)
  ACPI processor: Fix section mismatch for processor_add()
  ACPI: Add platform-wide _OSC support.
  ACPI: cleanup pci_root _OSC code.
  ACPI: Add a generic API for _OSC -v2
  msi-wmi: depend on backlight and fix corner-cases problems
  msi-wmi: switch to using input sparse keymap library
  msi-wmi: replace one-condition switch-case with if statement
  msi-wmi: remove unused field 'instance' in key_entry structure
  msi-wmi: remove custom runtime debug implementation
  msi-wmi: rework init
  msi-wmi: remove useless includes
  X86 drivers: Introduce msi-wmi driver
  Toshiba Bluetooth Enabling driver (RFKill handler v3)
  ACPI: fix for lapic_timer_propagate_broadcast()
  acpi_pad: squish warning
  ACPI: dock: minor whitespace and style cleanups
  ACPI: dock: add struct dock_station * directly to platform device data
  ACPI: dock: dock_add - hoist up platform_device_register_simple()
  ACPI: dock: remove global 'dock_device_name'
  ACPI: dock: combine add|alloc_dock_dependent_device (v2)
  ...
2009-12-16 12:33:19 -08:00
Alexey Dobriyan
5116fa2b3a pnpbios: convert to seq_file
Convert code away from ->read_proc/->write_proc interfaces.  Switch to
proc_create()/proc_create_data() which make addition of proc entries
reliable wrt NULL ->proc_fops, NULL ->data and so on.

Problem with ->read_proc et al is described here commit
786d7e1612 "Fix rmmod/read/write races in
/proc entries"

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Adam Belay <abelay@mit.edu>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16 07:20:05 -08:00
Len Brown
1a544d28dd Merge branch 'ipmi' into release 2009-12-16 02:20:58 -05:00
Bjorn Helgaas
9065ce4500 PNP: add interface to retrieve ACPI device from a PNPACPI device
Add pnp_acpi_device(pnp_dev), which takes a PNP device and returns the
associated ACPI device (or NULL, if the device is not a PNPACPI device).

This allows us to write a PNP driver that can manage both traditional
PNPBIOS and ACPI devices, treating ACPI-only functionality as an optional
extension.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-15 17:35:26 -05:00
André Goddard Rosa
e7d2860b69 tree-wide: convert open calls to remove spaces to skip_spaces() lib function
Makes use of skip_spaces() defined in lib/string.c for removing leading
spaces from strings all over the tree.

It decreases lib.a code size by 47 bytes and reuses the function tree-wide:
   text    data     bss     dec     hex filename
  64688     584     592   65864   10148 (TOTALS-BEFORE)
  64641     584     592   65817   10119 (TOTALS-AFTER)

Also, while at it, if we see (*str && isspace(*str)), we can be sure to
remove the first condition (*str) as the second one (isspace(*str)) also
evaluates to 0 whenever *str == 0, making it redundant. In other words,
"a char equals zero is never a space".

Julia Lawall tried the semantic patch (http://coccinelle.lip6.fr) below,
and found occurrences of this pattern on 3 more files:
    drivers/leds/led-class.c
    drivers/leds/ledtrig-timer.c
    drivers/video/output.c

@@
expression str;
@@

( // ignore skip_spaces cases
while (*str &&  isspace(*str)) { \(str++;\|++str;\) }
|
- *str &&
isspace(*str)
)

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Julia Lawall <julia@diku.dk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Neil Brown <neilb@suse.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: David Howells <dhowells@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:32 -08:00
Linus Torvalds
11bd04f6f3 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits)
  PCI: fix coding style issue in pci_save_state()
  PCI: add pci_request_acs
  PCI: fix BUG_ON triggered by logical PCIe root port removal
  PCI: remove ifdefed pci_cleanup_aer_correct_error_status
  PCI: unconditionally clear AER uncorr status register during cleanup
  x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource
  PCI: portdrv: remove redundant definitions
  PCI: portdrv: remove unnecessary struct pcie_port_data
  PCI: portdrv: minor cleanup for pcie_port_device_register
  PCI: portdrv: add missing irq cleanup
  PCI: portdrv: enable device before irq initialization
  PCI: portdrv: cleanup service irqs initialization
  PCI: portdrv: check capabilities first
  PCI: portdrv: move PME capability check
  PCI: portdrv: remove redundant pcie type calculation
  PCI: portdrv: cleanup pcie_device registration
  PCI: portdrv: remove redundant pcie_port_device_probe
  PCI: Always set prefetchable base/limit upper32 registers
  PCI: read-modify-write the pcie device control register when initiating pcie flr
  PCI: show dma_mask bits in /sys
  ...

Fixed up conflicts in:
	arch/x86/kernel/amd_iommu_init.c
	drivers/pci/dmar.c
	drivers/pci/hotplug/acpiphp_glue.c
2009-12-11 12:18:16 -08:00
Bjorn Helgaas
c4da6940a7 PNPACPI: save struct acpi_device, not just acpi_handle
Some drivers need to look at things in the acpi_device structure
besides the handle.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-11 00:50:48 -05:00
André Goddard Rosa
af901ca181 tree-wide: fix assorted typos all over the place
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:55 +01:00
Bjorn Helgaas
c7dabef8a2 vsprintf: use %pR, %pr instead of %pRt, %pRf
Jesse accidentally applied v1 [1] of the patchset instead of v2 [2].  This
is the diff between v1 and v2.

The changes in this patch are:
    - tidied vsprintf stack buffer to shrink and compute size more
      accurately
    - use %pR for decoding and %pr for "raw" (with type and flags) instead
      of adding %pRt and %pRf

[1] http://lkml.org/lkml/2009/10/6/491
[2] http://lkml.org/lkml/2009/10/13/441

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-11-04 13:06:41 -08:00
Bjorn Helgaas
9a007b3791 PNP: print resources consistently with %pRt
This uses %pRt and %pRf to print additional resource information (type,
size, prefetchability, etc.) consistently.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-11-04 08:47:20 -08:00
Bjorn Helgaas
1131b938f0 ACPI: remove acpi_device.flags.hardware_id
Every acpi_device has at least one ID (if there's no _HID or _CID, we
give it a synthetic or default ID).  So there's no longer a need to
check whether an ID exists; we can just use it.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25 15:09:48 -04:00
Bjorn Helgaas
7f47fa6c2f ACPI: maintain a single list of _HID and _CID IDs
There's no need to treat _HID and _CID differently.  Keeping them in
a single list makes code that uses the IDs a little simpler because it
can just traverse the list rather than checking "do we have a HID?",
"do we have any CIDs?"

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25 15:09:31 -04:00
Bjorn Helgaas
ea8d82fd31 ACPI: use acpi_device_hid() when possible
Use acpi_device_hid() rather than accessing acpi_device.pnp.hardware_id
directly.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-25 14:25:52 -04:00
Linus Torvalds
c11f6c8258 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (119 commits)
  ACPI: don't pass handle for fixed hardware notifications
  ACPI: remove null pointer checks in deferred execution path
  ACPI: simplify deferred execution path
  acerhdf: additional BIOS versions
  acerhdf: convert to dev_pm_ops
  acerhdf: fix fan control for AOA150 model
  thermal: add missing Kconfig dependency
  acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file
  hp-wmi: fix rfkill memory leak on unload
  ACPI: remove unnecessary #ifdef CONFIG_DMI
  ACPI: linux/acpi.h should not include linux/dmi.h
  hwmon driver for ACPI 4.0 power meters
  topstar-laptop: add new driver for hotkeys support on Topstar N01
  thinkpad_acpi: fix rfkill memory leak on unload
  thinkpad-acpi: report brightness events when required
  thinkpad-acpi: don't poll by default any of the reserved hotkeys
  thinkpad-acpi: Fix procfs hotkey reset command
  thinkpad-acpi: deprecate hotkey_bios_mask
  thinkpad-acpi: hotkey poll fixes
  thinkpad-acpi: be more strict when detecting a ThinkPad
  ...
2009-09-23 09:32:11 -07:00
David Härdeman
abd6633c67 pnp: add a shutdown method to pnp drivers
The shutdown method is used by the winbond cir driver to setup the
hardware for wake-from-S5.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 07:17:49 -07:00
Len Brown
985f38781d Merge branch 'acpica' into release 2009-09-19 01:45:22 -04:00
Bob Moore
15b8dd53f5 ACPICA: Major update for acpi_get_object_info external interface
Completed a major update for the acpi_get_object_info external interface.
Changes include:
 - Support for variable, unlimited length HID, UID, and CID strings
 - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.)
 - Call the _SxW power methods on behalf of a device object
 - Determine if a device is a PCI root bridge
 - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
These changes will require an update to all callers of this interface.
See the ACPICA Programmer Reference for details.

Also, update all invocations of acpi_get_object_info interface

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-27 10:17:15 -04:00
Akinobu Mita
c7425314c7 x86: Introduce GDT_ENTRY_INIT(), initialize bad_bios_desc statically
Fully initialize bad_bios_desc statically instead of doing some
fields statically and some dynamically.

Suggested-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090809080350.GA4765@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-10 11:10:52 +02:00
Akinobu Mita
1e5de18278 x86: Introduce GDT_ENTRY_INIT()
GDT_ENTRY_INIT is static initializer of desc_struct.

We already have similar macro GDT_ENTRY() but it's static
initializer for u64 and it cannot be used for desc_struct.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151219.GD11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-08 17:44:11 +02:00
Akinobu Mita
57594742a2 x86: Introduce set_desc_base() and set_desc_limit()
Rename set_base()/set_limit to set_desc_base()/set_desc_limit()
and rewrite them in C. These are naturally introduced by the
idea of get_desc_base()/get_desc_limit().

The conversion actually found the bug in apm_32.c:
bad_bios_desc is written at run-time, but it is defined const
variable.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151105.GC11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-19 18:27:52 +02:00
Len Brown
fbe8cddd2d Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
Linus Torvalds
6b702462cb Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (50 commits)
  drm: include kernel list header file in hashtab header
  drm: Export hash table functionality.
  drm: Split out the mm declarations in a separate header. Add atomic operations.
  drm/radeon: add support for RV790.
  drm/radeon: add rv740 drm support.
  drm_calloc_large: check right size, check integer overflow, use GFP_ZERO
  drm: Eliminate magic I2C frobbing when reading EDID
  drm/i915: duplicate desired mode for use by fbcon.
  drm/via: vfree() no need checking before calling it
  drm: Replace DRM_DEBUG with DRM_DEBUG_DRIVER in i915 driver
  drm: Replace DRM_DEBUG with DRM_DEBUG_MODE in drm_mode
  drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in intel_sdvo
  drm/i915: replace DRM_DEBUG with DRM_DEBUG_KMS in intel_lvds
  drm: add separate drm debugging levels
  radeon: remove _DRM_DRIVER from the preadded sarea map
  drm: don't associate _DRM_DRIVER maps with a master
  drm: simplify kcalloc() call to kzalloc().
  intelfb: fix spelling of "CLOCK"
  drm: fix LOCK_TEST_WITH_RETURN macro
  drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)
  ...
2009-06-12 18:09:18 -07:00
Bjorn Helgaas
1b8e69662e pnp: add PNP resource range checking function
Add a PNP resource range check function, indicating whether a resource
has been assigned to any device.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
[apw@canonical.com: fixed up exports et al]
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-05 14:37:41 +00:00
Ingo Molnar
3d58f48ba0 Merge branch 'linus' into irq/numa
Conflicts:
	arch/mips/sibyte/bcm1480/irq.c
	arch/mips/sibyte/sb1250/irq.c

Merge reason: we gathered a few conflicts plus update to latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-01 21:06:21 +02:00
Bjorn Helgaas
8cb24c8fd7 PNPACPI: parse Extended Address Space Descriptors
Extended Address Space Descriptors are new in ACPI 3.0 and allow the
BIOS to communicate device resource cacheability attributes (write-back,
write-through, uncacheable, etc) to the OS.

Previously, PNPACPI ignored these descriptors, so if a BIOS used them,
a device could be responding at addresses the OS doesn't know about.
This patch adds support for these descriptors in _CRS and _PRS.  We
don't attempt to encode them for _SRS (just like we don't attempt to
encode the existing 16-, 32-, and 64-bit Address Space Descriptors).

Unfortunately, I don't have a way to test this.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27 21:25:00 -04:00
Len Brown
19bde778c1 ACPI: suspend: don't let device _PS3 failure prevent suspend
6328a57401
"Enable PNPACPI _PSx Support, v3"

added a call to acpi_bus_set_power(handle, ACPI_STATE_D3)
to pnpacpi_disable_resource() before the existing call
to evaluate _DIS on the device.

This caused suspend to fail on the system in
http://bugzilla.kernel.org/show_bug.cgi?id=13243
because the sanity check to verify we entered _PS3
failed on the serial port.

As a work-around, that sanity check can be disabled
system-wide with "acpi.power_nocheck=1"

Or perhaps we should just shrug off the _PS3 failure
and carry on with _DIS like we used to -- which is
what this patch does.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-08 00:22:29 -04:00