Commit Graph

1154 Commits

Author SHA1 Message Date
Gary Hade cb3576fa34 PCI: Include PCI domain in PCI bus names on x86/x86_64
The PCI bus names included in /proc/iomem and /proc/ioports are
of the form 'PCI Bus #XX' where XX is the bus number.  This patch
changes the naming to 'PCI Bus XXXX:YY' where XXXX is the domain
number and YY is the bus number.  For example, PCI bus 14 in
domain 0 will show as 'PCI Bus 0000:14' instead of 'PCI Bus #14'.
This change makes the naming consistent with other architectures
such as ia64 where multiple PCI domain support has been around
longer.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:03 -07:00
Adrian Bunk 21c6847406 PCI: #if 0 pci_cleanup_aer_correct_error_status()
#if 0 the no longer used pci_cleanup_aer_correct_error_status().

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:02 -07:00
Yinghai Lu 4c44bac864 PCI: pcie AER: don't check _OSC when acpi is disabled
[PATCH] pcie AER: don't check _OSC when acpi is disabled

when acpi=off or pci=noacpi, get warning

AER service couldn't init device 0000:00:0a.0:pcie01 - no _OSC support
AER service couldn't init device 0000:00:0e.0:pcie01 - no _OSC support
AER service couldn't init device 0000:00:0f.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0b.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0e.0:pcie01 - no _OSC support
AER service couldn't init device 0000:80:0f.0:pcie01 - no _OSC support

so don't check _OSC in aer_osc_setup

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:02 -07:00
Greg Kroah-Hartman 5ff580c10e PCI: remove global list of PCI devices
This patch finally removes the global list of PCI devices.  We are
relying entirely on the list held in the driver core now, and do not
need a separate "shadow" list as no one uses it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:02 -07:00
Greg Kroah-Hartman 8a1bc9013a PCI: add is_added flag to struct pci_dev
This lets us check if the device is really added to the driver core or
not, which is what we need when walking some of the bus lists.  The flag
is there in anticipation of getting rid of the other PCI device list,
which is what we used to check in this situation.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:00 -07:00
Greg Kroah-Hartman 70308923d3 PCI: make no_pci_devices() use the pci_bus_type list
no_pci_devices() should use the driver core list of PCI devices, not our
"separate" one.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:59 -07:00
Greg Kroah-Hartman 3b57eff02c PCI Hotplug: the ibm driver is not dependant on PCI_LEGACY
This was marked incorrectly for some reason.  Allow the ibmphp driver to
be built even if PCI_LEGACY is not enabled.

Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:57 -07:00
Greg Kroah-Hartman 33ae6ef26d PCI Hotplug: make cpcihp driver use modern apis
This removes the depandancy of the cpcihp driver from the PCI_LEGACY
config option by removing its usage of the pci_find_bus() function.


Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Scott Murray <scottm@somanetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:56 -07:00
Greg Kroah-Hartman 95247b57ed PCI: clean up search.c a lot
This cleans up the search.c file, now using the pci list of devices that
are created for the driver core, instead of relying on our separate list
of devices.  It's better to use the functions already created for this
kind of thing, instead of rolling our own all the time.

This work is done in anticipation of getting rid of that second list of
pci devices all together.

And it ends up saving code, always a nice benefit.

This also removes one compiler warning for when CONFIG_PCI_LEGACY is
enabled as we no longer internally use the deprecated functions anymore.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:54 -07:00
Greg Kroah-Hartman 34220909a2 PCI: remove pci_get_device_reverse
This removes the pci_get_device_reverse function as there should not be
any need to walk pci devices backwards anymore.  All users of this call
are now gone from the tree, so it is safe to remove it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:53 -07:00
Greg Kroah-Hartman 448432c4b8 PCI: remove pci_find_present
No one is using this function anymore for quite some time, so remove it.
Everyone calls pci_dev_present() instead anyway...

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:52 -07:00
Adrian Bunk 2baad5f96b PCI: #if 0 pci_assign_resource_fixed()
An unused function that bloated the kernel only when CONFIG_EMBEDDED was
enabled...

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:46:52 -07:00
Mike Travis 39106dcf85 cpumask: use new cpus_scnprintf function
* Cleaned up references to cpumask_scnprintf() and added new
    cpulist_scnprintf() interfaces where appropriate.

  * Fix some small bugs (or code efficiency improvments) for various uses
    of cpumask_scnprintf.

  * Clean up some checkpatch errors.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19 19:44:59 +02:00
Mike Travis f70316dace generic: use new set_cpus_allowed_ptr function
* Use new set_cpus_allowed_ptr() function added by previous patch,
    which instead of passing the "newly allowed cpus" cpumask_t arg
    by value,  pass it by pointer:

    -int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
    +int set_cpus_allowed_ptr(struct task_struct *p, const cpumask_t *new_mask)

  * Modify CPU_MASK_ALL

Depends on:
	[sched-devel]: sched: add new set_cpus_allowed_ptr function

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19 19:44:58 +02:00
Jean Delvare a99acc832d pci: revert SMBus unhide on HP Compaq nx6110
This reverts commit 3c0a654e39 and
fixes kernel bug #10245:

	http://bugzilla.kernel.org/show_bug.cgi?id=10245

The HP Compaq nc6120 has the same PCI sub-device ID as the nx6110, and the
SMBus is used by ACPI for thermal management on the nc6120, so Linux should
not attach a native driver to it.  This means that this quirk is unsafe and
has to be removed.

I also added a comment to help developers realize that adding new IDs to this
SMBus unhiding quirk table should be done only with great care, and in
particular only after checking that ACPI is not making use of the SMBus.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Tomasz Koprowski <tomek@koprowski.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28 14:45:22 -07:00
Linus Torvalds 12c22d6ef2 Revert "PCI: remove transparent bridge sizing"
This reverts commit 8fa5913d54, which
caused various interesting problems for people, including wrong resource
allocations.  See for example bugzilla entry "2.6.25-rc2: ohci1394
problem (MMIO broken)" at

	http://bugzilla.kernel.org/show_bug.cgi?id=10080

And Gary Hade says:

 "The same change had also exposed an issue reported by Paul Martin that
  has been causing an Oops while hotplugging ThinkPads to a ThinkPad
  Dock II.  See

	http://lkml.org/lkml/2008/2/19/405
	http://bugzilla.kernel.org/show_bug.cgi?id=9961

  I have a fix for the ThinkPad docking Oops but if the issue being
  discussed here is caused by the transparent bridge sizing removal
  change I totally agree that it should be reverted."

  The transparent bridge sizing removal change was motivated by
  insufficient PCI memory resource for a transparent bridge window that
  was being created as a result of expansion ROM(s) being included in
  the transparent bridge sizing calculations.

  A later "PCI: Remove default PCI expansion ROM memory allocation"
  change ( re: http://lkml.org/lkml/2007/12/11/361 ) removes the
  expansion ROM(s) from the transparent bridge sizing calculations which
  actually resolves the original issue in a different manner.  So, even
  if the "PCI: remove transparent bridge sizing" is not problematic it
  is no longer needed anyway."

Identified-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Tested-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Gary Hade <garyhade@us.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-26 11:22:40 -07:00
Andrew Morton 49741c4d01 PCI: revert "pcie: utilize pcie transaction pending bit"
Revert as it is reported to cause problems for people.

commit 4348a2dc49
Author: Shaohua Li <shaohua.li@intel.com>
Date:   Wed Oct 24 10:45:08 2007 +0800

    pcie: utilize pcie transaction pending bit

    PCIE has a mechanism to wait for Non-Posted request to complete. I think
    pci_disable_device is a good place to do this.

    Signed-off-by: Shaohua Li <shaohua.li@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Due to the regression reported at
http://bugzilla.kernel.org/show_bug.cgi?id=10065

Cc: Shaohua Li <shaohua.li@intel.com>
Cc: Soeren Sonnenburg <kernel@nn7.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-24 22:38:44 -07:00
Mark Gross 8a443df40b PCI: iova: lockdep false alarm fix
lockdep goes off on the iova copy_reserved_iova() because it and a function
it calls grabs locks in the from, and the to of the copy operation.

The function grab locks of the same lock classes triggering the warning.  The
first lock grabbed is for the constant reserved areas that is never accessed
after early boot.  Technically you could do without grabbing the locks for the
"from" structure its copying reserved areas from.

But dropping the from locks to me looks wrong, even though it would be ok.

The affected code only runs in early boot as its setting up the DMAR
engines.

This patch gives the reserved_ioval_list locks special lockdep classes.

Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-24 22:38:44 -07:00
Mark Lord 9e58582449 pciehp: don't enable slot unless forced
This fixes a 2.6.25 regression reported by Alex Chiang.

Invoke pciehp_enable_slot() at startup only when pciehp_force=1.
Some HP equipment apparently cannot cope with it otherwise.

This restores the (previously working) 2.6.24 behaviour here,
while allowing machines that need a kick to use pciehp_force=1.

This was the original design back in October 2007,
but Kristen suggested we try without it first:

   Kristen Carlson Accardi wrote:
   >I think it would be ok to try allowing the slot to be enabled when not
   >using pciehp_force mode.  We can wrap it later if it proves to break things

This ended up breaking one of Alex's setups,
so it's time to put the wrapper back in now.

Signed-off-by: Mark Lord <mlord@pobox.com>
Acked-by: Alex Chiang <achiang@hp.com>
Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-17 19:26:05 -07:00
Linus Torvalds ebe168d52c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PCI: fix issue with busses registering multiple times in sysfs
2008-03-13 13:16:22 -07:00
Greg Kroah-Hartman cc74d96f47 PCI: fix issue with busses registering multiple times in sysfs
PCI busses can be registered multiple times, so we need to detect if we
have registered our bus structure in sysfs already.  If so, don't do it
again.

Thanks to Guennadi Liakhovetski <g.liakhovetski@gmx.de> for reporting
the problem, and to Linus for poking me to get me to believe that it was
a real problem.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-13 10:21:09 -07:00
Len Brown c523aef0f7 Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshiba' into release 2008-03-13 01:59:49 -04:00
Jesper Juhl b91aac29bb PCI Hotplug: Fix small mem leak in IBM Hot Plug Controller Driver
In drivers/pci/hotplug/ibmphp_ebda.c::ebda_rsrc_controller(), storage is
allocated with kzalloc() and assigned to 'tmp_slot'.  Then lots of
stuff, like ->flag, ->supported_speed etc is set in tmp_slot.  A bit
further down there's then this test :

  if (!bus_info_ptr1) {
    rc = -ENODEV;
    goto error;
  }

At this point, tmp_slot has not been assigned to anything, so when
erroring-out we want to free it, but nothing at the 'error:' label
free's 'tmp_slot' - and we can't really free 'tmp_slot' at 'error:'
since we may jump to that label later when 'tmp_slot' *has* been used
and we do not want it freed. So, the only sane option left seems to be
to kfree(tmp_slot) just before jumping to the 'error:' label in the one
place where this is what actually makes sense. The following patch does
just that and thus kills off a tiny potential memory leak.


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-10 16:38:02 -07:00
Kenji Kaneshige c1ef5cbd03 pci: hotplug: pciehp: fix error code path in hpc_power_off_slot
Fix the error code path in hpc_power_off_slot().

The Bad DLLP Mask bit must be restored before return.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-04 15:07:04 -08:00
Greg Kroah-Hartman 4725e7bdb8 PCI: fix up error messages for pci_bus registering
Due to the class_device cleanup of pci_bus, the error messages when
things go wrong are incorrect.  So fix this up to properly report what
is really happening, if things go wrong.

Thanks to Kay for pointing out the issue.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-04 15:07:03 -08:00
Sam Ravnborg 0ab2b57f8d PCI: fix section mismatch warning in pci_scan_child_bus
Fix following warning:
WARNING: vmlinux.o(.text+0x47bdb1): Section mismatch in reference from the function pci_scan_child_bus() to the function .devinit.text:pcibios_fixup_bus()

We had plenty of functions that could be annotated __devinit but due to
the former restriction that exported symbols could not be annotated
they were not so.  So annotate these function and fix the references
from the pci/hotplug/* code to silence the resuting warnings.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-04 15:07:03 -08:00
Bjorn Helgaas 415b6d0e89 PCI: consolidate duplicated MSI enable functions
Two recent patches added basically the same code to turn on
HT MSI mapping:

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787

There's no need to have both, so this patch removes one copy.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-04 15:07:03 -08:00
Bjorn Helgaas d6505a5236 PCI: use dev_printk in quirk messages
Convert quirk printks to dev_printk().

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-04 15:07:02 -08:00
Randy Dunlap 0643245f59 docbook: fix kernel-api source files
Fix docbook problems in kernel-api.tmpl.
These cause the generated docbook to be incorrect.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-03 10:47:14 -08:00
mark gross 98bcef56ca copyright owner and author clean up for intel iommu and related files
The following is a clean up and correction of the copyright holding
entities for the files associated with the intel iommu code.

Signed-off-by: <mgross@linux.intel.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:14 -08:00
Rafael J. Wysocki 3a2d5b7001 PM: Introduce PM_EVENT_HIBERNATE callback state
During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.

But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.

For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate.  Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.

These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 10:40:04 -08:00
David Brownell 583c377f1d ACPI: acpi_pci_set_power_state() cleanups
Minor cleanups to acpi_pci_set_power_state():  use the ACPI and PCI
state symbols to make clear that a mapping is being done between PCI
and ACPI states, instead of using magic numbers.  For paranoia's sake,
report any errors.  Save five bytes (x86_64) too.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-23 01:29:34 -05:00
Linus Torvalds 20f8d2a493 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: (26 commits)
  PM: Make suspend_device() static
  PCI ACPI: Fix comment describing acpi_pci_choose_state
  Hibernation: Handle DEBUG_PAGEALLOC on x86
  ACPI: fix build warning
  ACPI: TSC breaks atkbd suspend
  ACPI: remove is_processor_present prototype
  acer-wmi: Add DMI match for mail LED on Acer TravelMate 4200 series
  ACPI: sparse fix, replace macro with static function
  ACPI: thinkpad-acpi: add tablet-mode reporting
  ACPI: thinkpad-acpi: minor hotkey_radio_sw fixes
  ACPI: thinkpad-acpi: improve thinkpad-acpi input device documentation
  ACPI: thinkpad-acpi: issue input events for tablet swivel events
  ACPI: thinkpad-acpi: make the video output feature optional
  ACPI: thinkpad-acpi: synchronize input device switches
  ACPI: thinkpad-acpi: always track input device open/close
  ACPI: thinkpad-acpi: trivial fix to documentation
  ACPI: thinkpad-acpi: trivial fix to module_desc typo
  intel_menlo: extract return values using PTR_ERR
  ACPI video: check for error from thermal_cooling_device_register
  ACPI thermal: extract return values using PTR_ERR
  ...
2008-02-21 16:33:19 -08:00
Kenji Kaneshige 79df4c60c5 PCI: Fix wrong reference counter check for proc_dir_entry
Fix wrong counter check for proc_dir_entry in pci_proc_detach_device().

The pci_proc_detach_device() returns with -EBUSY before calling
remove_proc_entry() if the reference counter of proc_dir_entry is not
0. But this check is wrong and pci_proc_detach_device() always fails
because the reference counter of proc_dir_entry is initialized with 1
at creating time and decremented in remove_proc_entry(). This bug
cause strange behaviour as followings:

- Accessing /proc/bus/pci/XXXX/YY file after hot-removing pci adapter
  card causes kernel panic.

- Repeating hot-add/hot-remove of pci adapter card increases files
  with the same name under /proc/bus/pci/XXXX/ directory. For example:

    # pwd
    /proc/bus/pci/0002:09
    # ls
    01.0
    # for i in `seq 5`
    > do
    > echo 0 > /sys/bus/pci/slots/0009_0032/power
    > echo 1 > /sys/bus/pci/slots/0009_0032/power
    > done
    # ls
    01.0  01.0  01.0  01.0  01.0  01.0

The pci_proc_detach_device() should check if the reference counter is
not larger than 1 instead.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:39 -08:00
Andrew Morton 13d36c2483 PCI: fix up setup-bus.c #ifdef
Use upper_32_bits(): no code changes, one less ifdef.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:38 -08:00
Yinghai Lu 6e4be1ff2e PCI: don't load acpi_php when acpi is disabled
When acpi=off and pci=nomsi, don't load acpiphp.

Fixes this:

pci_hotplug: PCI Hot Plug PCI Core version: 0.5
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread
FFFF81103CC54000 could not acquire Mutex [1] [20070126]

[akpm@linux-foundation.org: export acpi_pci_disabled for acpiphp.ko]
[akpm@linux-foundation.org: fix return statement]
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:37 -08:00
Peer Chen 9dc625e723 PCI: quirks: set 'En' bit of MSI Mapping for devices onHT-based nvidia platform
According to HT spec, to get message interrupt from devices mapped to HT
interrupt message, the 'En' bit of MSI Mapping capability need to be set.
The patch do this setting in quirks code for the devices on HT-based nvidia
platform.

[akpm@linux-foundation.org: coding-style fixes]

Signed-off-by: Andy Currid <acurrid@nvidia.com>
Signed-off-by: Peer Chen <pchen@nvidia.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:37 -08:00
Randy Dunlap 8b3c762205 PCI: kernel-doc: fix pci-acpi warning
Fix PCI kernel-doc warning:
Warning(linux-2.6.24-git12//drivers/pci/pci-acpi.c:166): No description found for parameter 'hid'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:37 -08:00
Crane Cai 05a7d22b9f PCI: AMD SATA IDE mode quirk
PCI: modify SATA IDE mode quirk
When initialize and resume, SB600/700/800 need to set SATA mode
correctly.

Signed-off-by: Crane Cai <crane.cai@amd.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:35 -08:00
Gary Hade 498fbb5d41 PCI: hotplug: acpiphp_ibm: Remove get device information
drivers/pci/hotplug/acpiphp_ibm.c:ibm_find_acpi_device() is not
large enough to accommodate data returned by the _CID method
executed from acpi_get_object_info().

This patch eliminates the problem by letting ACPI code
(instead of driver code) determine and obtain a correctly
sized buffer.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:35 -08:00
Len Brown 1f1519ef59 Merge branches 'release', 'bugzilla-9916', 'bugzilla-9982', 'bugzilla-9989', 'misc', 'suspend', 'thermal', 'thinkpad' and 'tsc' into release 2008-02-21 02:41:58 -05:00
Rafael J. Wysocki c6868ea00b PCI ACPI: Fix comment describing acpi_pci_choose_state
The last line of the comment preceding the definition of
acpi_pci_choose_state() is incorrect.  Remove it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-21 02:15:42 -05:00
Randy Dunlap 5958f1a4da kernel-doc: fix pci-acpi warning
Fix PCI kernel-doc warning:
Warning(linux-2.6.24-git12//drivers/pci/pci-acpi.c:166): No description found for parameter 'hid'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-15 18:21:20 -05:00
David Howells b920de1b77 mn10300: add the MN10300/AM33 architecture to the kernel
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the
kernel.

This patch also adds board support for the ASB2303 with the ASB2308 daughter
board, and the ASB2305.  The only processor supported is the MN103E010, which
is an AM33v2 core plus on-chip devices.

[akpm@linux-foundation.org: nuke cvs control strings]
Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com>
Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:30 -08:00
mark gross d94afc6ccf intel-iommu: fault_reason index cleanup
Fix an off by one bug in the fault reason string reporting function, and
clean up some of the code around this buglet.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: mark gross <mgross@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:24 -08:00
mark gross f8bab73515 intel-iommu: PMEN support
Add support for protected memory enable bits by clearing them if they are
set at startup time.  Some future boot loaders or firmware could have this
bit set after it loads the kernel, and it needs to be cleared if DMA's are
going to happen effectively.

Signed-off-by: mark gross <mgross@intel.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:24 -08:00
David Miller f661197e0a Genericizing iova.[ch]
I would like to potentially move the sparc64 IOMMU code over to using
the nice new drivers/pci/iova.[ch] code for free area management..

In order to do that we have to detach the IOMMU page size assumptions
which only really need to exist in the intel-iommu.[ch] code.

This patch attempts to implement that.

[akpm@linux-foundation.org: build fix]
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:01 -08:00
FUJITA Tomonori 59fc67dedb iommu sg merging: PCI: add dma segment boundary support
This adds PCI's accessor for segment_boundary_mask in device_dma_parameters.

The default segment_boundary is set to 0xffffffff, same to the block layer's
default value (and the scsi mid layer uses the same value).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:12 -08:00
FUJITA Tomonori 4d57cdfaca iommu sg merging: PCI: add device_dma_parameters support
This adds struct device_dma_parameters in struct pci_dev and properly
sets up a pointer in struct device.

The default max_segment_size is set to 64K, same to the block layer's
default value.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Mostly-acked-by: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Sam Ravnborg 451124a7cc PCI: fix 4x section mismatch warnings
The following warnings were issued during build of
drivers/pci with an allyesconfig build:
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0xdaf): Section mismatch in reference from the function pci_add_new_bus() to the function .devinit.text:pci_alloc_child_bus()
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0x15e2): Section mismatch in reference from the function pci_scan_single_device() to the function .devinit.text:pci_scan_device()
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0x1b0c5): Section mismatch in reference from the function pci_bus_assign_resources() to the function .devinit.text:pci_setup_bridge()
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0x1b32d): Section mismatch in reference from the function pci_bus_size_bridges() to the function .devinit.text:pci_bus_size_cardbus()

Investigating each case closer it looked like all
referred functions are only used in the init phase
or during hotplug.
So to avoid wasting too much memory in the non-hotplug
case the simpler fix was to allow the fuctions to
use code/data from the __devinit sections.
This was done in all four case by adding the __ref
annotation.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02 15:08:04 -08:00
Sam Ravnborg 4105717bc9 PCI: fix section mismatch warnings referring to pci_do_scan_bus
Fix following warnings:
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0xb054): Section mismatch in reference from the function cpci_configure_slot() to the function .devinit.text:pci_do_scan_bus()
WARNING: o-x86_64/drivers/pci/built-in.o(.text+0x153ab): Section mismatch in reference from the function shpchp_configure_device() to the function .devinit.text:pci_do_scan_bus()
WARNING: o-x86_64/drivers/pci/built-in.o(__ksymtab+0xc0): Section mismatch in reference from the variable __ksymtab_pci_do_scan_bus to the function .devinit.text:pci_do_scan_bus()

PCI hotplug were the only user of pci_do_scan_bus()
so moving this function to a separate file that is build
only when we enable CONFIG_HOTPLUG_PCI.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02 15:04:30 -08:00
Greg Kroah-Hartman cc3a1378b4 Revert "PCI: PCIE ASPM support"
This reverts commit 6c723d5bd8.

It caused build errors on non-x86 platforms, config file confusion, and
even some boot errors on some x86-64 boxes.  All around, not quite ready
for prime-time :(

Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02 11:32:01 -08:00
Linus Torvalds 215e871aaa Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (64 commits)
  PCI: make pci_bus a struct device
  PCI: fix codingstyle issues in include/linux/pci.h
  PCI: fix codingstyle issues in drivers/pci/pci.h
  PCI: PCIE ASPM support
  PCI: Fix fakephp deadlock
  PCI: modify SB700 SATA MSI quirk
  PCI: Run ACPI _OSC method on root bridges only
  PCI ACPI: AER driver should only register PCIe devices with _OSC
  PCI ACPI: Added a function to register _OSC with only PCIe devices.
  PCI: constify function pointer tables
  PCI: Convert drivers/pci/proc.c to use unlocked_ioctl
  pciehp: block new requests from the device before power off
  pciehp: workaround against Bad DLLP during power off
  pciehp: wait for 1000ms before LED operation after power off
  PCI: Remove pci_enable_device_bars() from documentation
  PCI: Remove pci_enable_device_bars()
  PCI: Remove users of pci_enable_device_bars()
  PCI: Add pci_enable_device_{io,mem} intefaces
  PCI: avoid save the same type of cap multiple times
  PCI: correctly initialize a structure for pcie_save_pcix_state()
  ...
2008-02-02 14:29:33 +11:00
Greg Kroah-Hartman fd7d1ced29 PCI: make pci_bus a struct device
This moves the pci_bus class device to be a real struct device and at
the same time, place it in the device tree in the correct location.

Note, the old "bridge" symlink is now gone, but this was a non-standard
link and no userspace program used it.  If you need to determine the
device that the bus is on, follow the standard device symlink, or walk
up the device tree.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:31 -08:00
Greg Kroah-Hartman 367b09fec4 PCI: fix codingstyle issues in drivers/pci/pci.h
Fixes a few coding style issues in the internal pci.h file

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:31 -08:00
Shaohua Li 6c723d5bd8 PCI: PCIE ASPM support
PCI Express ASPM defines a protocol for PCI Express components in the D0
state to reduce Link power by placing their Links into a low power state
and instructing the other end of the Link to do likewise. This
capability allows hardware-autonomous, dynamic Link power reduction
beyond what is achievable by software-only controlled power management.
However, The device should be configured by software appropriately.
Enabling ASPM will save power, but will introduce device latency.

This patch adds ASPM support in Linux. It introduces a global policy for
ASPM, a sysfs file /sys/module/pcie_aspm/parameters/policy can control
it. The interface can be used as a boot option too. Currently we have
below setting:
        -default, BIOS default setting
        -powersave, highest power saving mode, enable all available ASPM
state
and clock power management
        -performance, highest performance, disable ASPM and clock power
management
By default, the 'default' policy is used currently.

In my test, power difference between powersave mode and performance mode
is about 1.3w in a system with 3 PCIE links.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:30 -08:00
Ian Abbott 5c796ae7a7 PCI: Fix fakephp deadlock
If the fakephp driver is used to emulate removal of a PCI device by
writing text string "0" to the "power" sysfs attribute file, this causes
its parent directory and its contents (including the "power" file) to be
deleted before the write operation returns.  Unfortunately, it ends up
in a deadlock waiting for itself to complete.

The deadlock is as follows: sysfs_write_file calls flush_write_buffer
which calls sysfs_get_active_two before calling power_write_file in
pci_hotplug_core.c via the sysfs store operation. The power_write_file
function calls disable_slot in fakephp.c via the slot operation.  The
disable_slot function calls remove_slot which calls pci_hp_deregister
(back in pci_hotplug_core.c) which calls fs_remove_slot which calls
sysfs_remove_file to remove the "power" file. The sysfs_remove_file
function calls sysfs_hash_and_remove which calls sysfs_addrm_finish
which calls sysfs_deactivate. The sysfs_deactivate function sees that
something has an active reference on the sysfs_dirent (from the
previous call to sysfs_get_active_two back up the call stack somewhere)
so waits for the active reference to go away, which is of course
impossible.

The problem has been present since 2.6.21.

This patch breaks the deadlock by queuing work queue items on a single-
threaded work queue to remove a slot from sysfs, and to rescan the PCI
buses.  There is also some protection against disabling a slot that is
already being removed.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:30 -08:00
Shane Huang 4600c9d74e PCI: modify SB700 SATA MSI quirk
SB700 SATA MSI bug will be fixed in SB700 revision A21 at hardware
level, but the SB700 revision older than A21 will also be found in the
market.  This patch modify the original quirk commit
bc38b411fe instead of withdrawing it.
The patch also removes quirk to 0x4395 because 0x4395 is SB800 device
ID.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:30 -08:00
Andrew Patterson 3c75e23784 PCI: Run ACPI _OSC method on root bridges only
According to the PCI Firmware Specification Revision 3.0 section 4.5, _OSC
should only be called on a root brdige.  Here is the relevant passage: "The
_OSC interface defined in this section applies only to Host Bridge ACPI
devices that originate PCI, PCI-X, or PCI Express hierarchies". Changed the
code to find the parent root bridge of the device and call _OSC on that.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:30 -08:00
Andrew Patterson d8634ddd37 PCI ACPI: AER driver should only register PCIe devices with _OSC
AER is only used with PCIe devices so we should only check PCIe devices for
_OSC support.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:30 -08:00
Andrew Patterson c277835723 PCI ACPI: Added a function to register _OSC with only PCIe devices.
The function pci_osc_support_set() traverses every root bridge when
checking for _OSC support for a capability.  It quits as soon as it finds a
device/bridge that doesn't support the requested capability. This won't
work for systems that have mixed PCI and PCIe bridges when checking for
PCIe features.  I split this function into two -- pci_osc_support_set() and
pcie_osc_support_set(). The latter is used when only PCIe devices should be
traversed.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:29 -08:00
Jan Engelhardt 02d90fc343 PCI: constify function pointer tables
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:29 -08:00
Mathieu Segaud add771840b PCI: Convert drivers/pci/proc.c to use unlocked_ioctl
Change access to inode thru file->f_dentry->d_inode, and add explicit
lock/unlock_kernel() calls.


Signed-off-by: Mathieu Segaud <mathieu.segaud@regala.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:29 -08:00
Kenji Kaneshige 2326e2b999 pciehp: block new requests from the device before power off
Disable Bus Master, SERR# and INTx to ensure that no new Requests will
be generated from the device before turning power off, in accordance
with the specification.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:28 -08:00
Kenji Kaneshige f1050a35cd pciehp: workaround against Bad DLLP during power off
Set Bad DLLP Mask bit in Correctable Error Mask Register during
turning power off the slot.

This is the workaround against Bad DLLP error that sometimes happen
during turning power off on the slot which conforms to PCI Express
1.0a spec. The cause of this error seems that PCI Express 1.0a spec
doesn't have the following consideration that was added to PCI Express
1.1 spec.

    "If the port is associated with a hot-pluggable slot (Hot-Plug
    Capable bit in the Slot Capabilities register set to 1b), and
    Power Controller Control bit in Slot Control register is 1b(Off),
    then any transition to DL Inactive must not be considered an
    error."

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:28 -08:00
Kenji Kaneshige 8bb7c7af1f pciehp: wait for 1000ms before LED operation after power off
After turning power off, we must wait for at least 1 second *before*
LED operation.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:28 -08:00
Benjamin Herrenschmidt 7cbe5b6005 PCI: Remove pci_enable_device_bars()
Now that all in-tree users are gone, this removes pci_enable_device_bars()
completely.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:28 -08:00
Benjamin Herrenschmidt b718989da7 PCI: Add pci_enable_device_{io,mem} intefaces
The pci_enable_device_bars() interface isn't well suited to PCI
because you can't actually enable/disable BARs individually on
a device. So for example, if a device has 2 memory BARs 0 and 1,
and one of them (let's say 1) has not been successfully allocated
by the firmware or the kernel, then enabling memory decoding
shouldn't be permitted for the entire device since it will decode
whatever random address is still in that BAR 1.

So a device must be either fully enabled for IO, for Memory, or
for both. Not on a per-BAR basis.

This provides two new functions, pci_enable_device_io() and
pci_enable_device_mem() to replace pci_enable_device_bars(). The
implementation internally builds a BAR mask in order to be able
to use existing arch infrastructure.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:27 -08:00
Shaohua Li 017fc480cc PCI: avoid save the same type of cap multiple times
Avoid adding the same type of cap multiple times, otherwise we will see dead loop.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:27 -08:00
Shaohua Li ec0a3a27fb PCI: correctly initialize a structure for pcie_save_pcix_state()
save_state->cap_nr should be correctly set, otherwise we can't find the
saved cap at resume.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:27 -08:00
Shaohua Li f34303de9e PCI: fix typo in pci_save_pcix_state
pci_save/store_state has multiple bugs, which will cause cap can't be
saved/restored correctly. Below 3 patches fix them.


fix the typo in pci_save_pcix_state

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:27 -08:00
bjorn.helgaas@hp.com f0fda801da PCI: use dev_printk in quirk messages
Convert quirk printks to dev_printk().

I made the MSI disable messages a little more consistent:

    - always use "disabled", not "deactivated"
    - specify "device MSI disabled" or "subordinate MSI disabled" when
      disabling MSI for only a specific device or subordinate bus

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:26 -08:00
bjorn.helgaas@hp.com 9f23ed3b94 PCI: print quirk name in debug messages
Instead of printing this:

    PCI: Calling quirk c023b250 for 0000:00:00.0

we can print this:

    pci 0000:00:00.0: calling quirk 0xc023b270: quirk_cardbus_legacy+0x0/0x30()

The address is superfluous because sprint_symbol() includes the
address if the symbol lookup fails, but this is the same style used
in do_initcalls() and pnp_fixup_device().

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:26 -08:00
Ivan Kokshaysky e64aeccbec PCI: fix for quirk_e100_interrupt()
Check that the e100 is in the D0 power state. If it's not, it won't
respond to MMIO accesses and we end up with master-abort machine
checks on some platforms.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:26 -08:00
Joe Perches 3609801ecc PCI: Spelling fixes
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:26 -08:00
Adrian Bunk 6a9e7f2031 PCI: drivers/pci/msi.c: move arch hooks to the top
This patch fixes the following problem present with older gcc versions:

<--  snip  -->

...
  CC      drivers/pci/msi.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:692: warning: weak declaration of `arch_msi_check_device' after first use results in unspecified behavior
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:704: warning: weak declaration of `arch_setup_msi_irqs' after first use results in unspecified behavior
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:724: warning: weak declaration of `arch_teardown_msi_irqs' after first use results in unspecified behavior
...

<--  snip  -->

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:25 -08:00
Sebastien Dugue 6bae1d96c6 PCI: quirk: enable MSI Mapping on HT1000
Add a quirk to enable the MSI mapping capability on HyperTransport bridges.

Wire Broadcom's HT1000 to use the quirk.

Signed-off-by: Sebastien Dugue <sebastien.dugue@bull.net>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andy Currid <acurrid@nvidia.com>
Cc: Peer Chen <pchen@nvidia.com>
Cc: Prakash Punnoor <prakash@punnoor.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michael Chan <mchan@broadcom.com>
Cc: Greg KH <greg@kroah.com>
Cc: Andy Currid <acurrid@nvidia.com>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:25 -08:00
Benjamin Herrenschmidt 6015fbefc4 PCI: Fix warning in setup-res.c on 32-bit platforms with 64-bit resources
This adds appropriate casts to avoid a warning and print the correct
values in pr_debug.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:25 -08:00
Benjamin Herrenschmidt c40a22e0ce PCI: Fix bus resource assignment on 32 bits with 64b resources
The current pci_assign_unassigned_resources() code doesn't work properly
on 32 bits platforms with 64 bits resources. The main reason is the use
of unsigned long in various places instead of resource_size_t.

This is a pre-requisite for making powerpc use the generic code instead of
its own half-useful implementation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:25 -08:00
Rolf Eike Beer f07234b66a PCI Hotplug: PCIeHP: Fix some whitespace damage
PCIeHP: Fix some whitespace damage

Signed-off-by: Rolf Eike Beer <eike-hotplug@sf-tec.de>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:24 -08:00
Kenji Kaneshige 9515930ea2 PCI Hotplug: pciehp: use generic function to find ext capability
Remove duplicated code to find an extend capability in PCIEHP driver.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:24 -08:00
Kenji Kaneshige 941f10e941 PCI Hotplug: pciehp: remove needless hp_slot calculation
Remove needless hp_slot calculation. This has no functional changes.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:24 -08:00
Kenji Kaneshige 0837974ddb PCI Hotplug: pciehp: remove needless members from struct controller
Remove needless members from struct controller. This has no functional
changes.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:24 -08:00
MUNEDA Takahiro 25d6ddcd78 PCI Hotplug: acpiphp: remove unneeded acpi_get_name function call
acpi_get_name() is called before and after dbg(). The latter is
useless and should be removed.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:24 -08:00
MUNEDA Takahiro 5a340ed879 PCI Hotplug: acpiphp: fix trivial typos
fix trivial typos.

Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:23 -08:00
Mark Lord ecdde93962 PCIe: fix double initialization bug
Earlier patches to split out the hardware init for PCIe hotplug resulted in
some one-time initializations being redone on every resume cycle.  Eg.
irq/polling initialization.

This patch splits the hardware init into two parts, and separates the
one-time initializations from those so that they only ever get done once,
as intended.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:23 -08:00
Mark Lord cd2fe83a81 PCIE: Make use of the previously split out pcie_init_enable_events() function
Make use of the previously split out pcie_init_enable_events() function
to reinitialize the hotplug hardware on resume from suspend, but only
when pciehp_force==1.  Otherwise behaviour is unmodified.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:23 -08:00
Mark Lord 08e7a7d27d PCI: more fixes for PCIe Hotplug so that it works with ExpressCard slots on Dell notebooks (and others?) in conjunction with modparam of pciehp_force=1
Split out the hotplug hardware initialization code from pcie_init()
into pcie_init_enable_events(), without changing any functionality.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:23 -08:00
Mark Lord 0a3c33d77f PCIE: fix PCIe Hotplug so that it works with ExpressCard slots on Dell notebooks (and others?) in conjunction with modparam of pciehp_force=1.
Fix pciehp_probe() to deal with ExpressCard cards
that were inserted prior to the driver being loaded.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:22 -08:00
Joe Perches a6f29a98af PCI: Add missing "space" in printk messages
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:22 -08:00
Linas Vepstas 94688cf245 PCI: export pci_restore_msi_state()
PCI error recovery usually involves the PCI adapter being reset.
If the device is using MSI, the reset will cause the MSI state
to be lost; the device driver needs to restore the MSI state.

The pci_restore_msi_state() routine is currently protected
by CONFIG_PM; remove this, and also export the symbol, so
that it can be used in a modle.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:22 -08:00
Linas Vepstas 1b7c9fcaa1 pci hotplug: fix rpaphp directory naming
Fix presentation of the slot number in the /sys/bus/pci/slots
directory to match that used in the majority of other drivers.

> Greg said:
> How is anyone supposed to write sane managability tools in the
> presence
> of such anarchy?
>
> > ~ # cat /sys/bus/pci/slots/0000:00:02.2/phy_location
> > U787A.001.DNZ00Z5-P1-C2
>
> Right.  This should look like:
>
> # cat /sys/bus/pci/slots/U787A.001.DNZ00Z5-P1-C2/address
> 0000:00:02

This patch implements exactly what you describe. Boot tested.
I assume you really mean it -- if so, then please review and
ack the patch !?

I have absolutely no clue if this breaks any existing IBM tools.
I'm pretty sure it doesn't ... but attention Mike Strosaker! does it?

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: <strosake@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:22 -08:00
Jean Delvare 677cc6443b PCI: Unhide the SMBus on the HP xw4100
Unhide the SMBus on the HP xw4100. This gives access to a hardware
monitoring chip (ADT7463) and to the memory module SPD EEPROMs. I
checked that ACPI wasn't accessing the SMBus, so it should be safe.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:22 -08:00
Fenghua Yu 093f87d279 PCI: More Sanity checks for DMAR
Add and changes a few sanity checks in dmar.c.

1.  The haw field in ACPI DMAR table in VT-d spec doesn't describe the
   range of haw.  But since DMA page size is 4KB in DMA remapping, haw
   should be at least 4KB.  The current VT-d code in dmar.c returns failure
   when haw==0.  This sanity check is not accurate and execution can pass
   when haw is less than one page size 4KB.  This patch changes the haw
   sanity check to validate if haw is less than 4KB.

2. Add dmar_rmrr_units verification.

3. Add parse_dmar_table() verification.

[akpm@linux-foundation.org: coding-style fixes]

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: mark gross <mgross@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:21 -08:00
Andrew Morton 652c538eb5 PCI: drivers/pci/quirks.c: coding-style cleanup
Remove lots of space-before-) instances.  Perhaps these were a workaround for
problems in some long-dead cpp version.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:21 -08:00
Adrian Bunk 943e6c0d5c PCI: remove additional pci_scan_child_bus() prototype
There's already a prototype for pci_scan_child_bus() at the correct place in
pci.h, so there's no reason for an additional one.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:21 -08:00
Adrian Bunk b73e96878d PCI: always export pci_scan_single_device
This patch fixes the following build error with CONFIG_HOTPLUG=n:

  MODPOST 2137 modules
ERROR: "pci_scan_single_device" [drivers/edac/i82875p_edac.ko] undefined!

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:21 -08:00
Diego Woitasen 0741a951e8 PCI: remove unneeded lock_kernel() in drivers/pci/syscall.c.
sys_pciconfig_{read,write}() are protected against PCI removal with the
reference count in struct pci_dev.  The concurrency of
pci_user_{read,write}_config_* functions are already protected by pci_lock
in drivers/pci/access.c.

Signed-off-by: Diego Woitasen <diego@woitasen.com.ar>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:21 -08:00
Lee Schermerhorn 74e27e44b0 PCI: Mem Policy: fix mempolicy usage in pci driver
In an attempt to ensure memory allocation from the local node, the pci
driver temporarily replaces the current task's memory policy with the
system default policy.  Trying to be a good citizen, the driver then call's
mpol_get() on the new policy.  When it's finished probing, it undoes the
'_get by calling mpol_free() [on the system default policy] and then
restores the current task's saved mempolicy.

A couple of issues here:

1) it's never necessary to set a task's mempolicy to the
   system default policy in order to get system default
   allocation behavior.  Simply set the current task's
   mempolicy to NULL and allocations will fall back to
   system default policy.

2) we should never [need to] call mpol_free() on the system
   default policy.  [I plan on trapping this with a VM_BUG_ON()
   in a subsequent patch.]

This patch removes the calls to mpol_get() and mpol_free()
and uses NULL for the temporary task mempolicy to effect
default allocation behavior.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Tim Yamin 53a9bf4267 PCI: VIA CX700 quirk to disable PCI Bus Parking
PCI Bus Parking and PCI Master read caching on the VIA CX700 is buggy and
can lead to problems such as USB2.0 packet loss if a VT6212L controller
is on the PCI bus. It's disabled by default, but some BIOSes turn these
features on and this patch reverts the configuration to the safe defaults.

Signed-off-by: Tim Yamin <tim.yamin@zonbu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Auke Kok 2b1afa87e1 PCI: quirk_vialatency: Omit reading pci revision ID
Don't read the revision ID unnecessary since the PCI subsystem
fills this field in already.

Updated to fix a thinko bug in a previously sent patch.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Alex Chiang 561e55e8e3 PCI: hotplug: Link fakephp last
Currently, fakephp will claim all devices; we really only want it
to claim those not in slots.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Alex Chiang 41ece3829f PCI: hotplug: pci_hotplug_core whitespace fix
Remove superfluous space.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Alex Chiang 1d5b95ab8e PCI: hotplug: acpiphp: Remove unused variable from acpiphp
Remove unused variable from acpiphp.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:20 -08:00
Kristen Carlson Accardi 1ec87280eb PCI: hotplug: remove Experimental
Remove EXPERIMENTAL from PCI Hot Plug.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:19 -08:00
Joonwoo Park f362b8bffe PCI: hotplug: Switch to pci_get_bus_and_slot
Thank you so much for your check & advise.
This time, I've tried on ibmphp_core.c, is it OK?

Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:19 -08:00
Shaohua Li 4348a2dc49 pcie: utilize pcie transaction pending bit
PCIE has a mechanism to wait for Non-Posted request to complete. I think
pci_disable_device is a good place to do this.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:19 -08:00
Shaohua Li 39ec4561b3 pcie port driver: correctly detect native PME feature
Native PME is capability of root port or root complex event collector.
It's not determined by PCI PME capability.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:18 -08:00
Adrian Bunk eb003ec265 PCI: drivers/pci/: remove unused exports
This patch removes the following unused exports:
- remove the following unused EXPORT_SYMBOL's:
 - pci-acpi.c: pci_osc_support_set
 - proc.c: pci_proc_detach_bus
- remove the following unused EXPORT_SYMBOL_GPL's:
  - bus.c: pci_walk_bus
  - probe.c: pci_create_bus
  - setup-res.c: pci_claim_resource

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:18 -08:00
Adrian Bunk b09549ef9b PCI: drivers/pci/rom.c: #if 0 two functions
This patch #if 0's the following unused global functions:
- rom.c: pci_map_rom_copy()
- rom.c: pci_remove_rom()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:18 -08:00
Adrian Bunk ad668599f2 PCI: make pci_restore_bars() static
This patch makes the needlessly global pci_restore_bars() static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 15:04:18 -08:00
Tejun Heo b95d58eaf2 pci: allow multiple calls to pcim_enable_device()
There's no reason not to allow multiple calls to pcim_enable_device().
Calls after the first one can simply be noop.  All PCI resources will
be released when the initial pcim_enable_device() resource is
released.

This allows more flexibility to managed PCI users.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-02-01 12:26:44 -05:00
Paul Mackerras bd45ac0c5d Merge branch 'linux-2.6' 2008-01-31 11:25:51 +11:00
Kumar Gala 03a16b27bd [POWERPC] Always build setup-bus.c on powerpc
The common arch/powerpc code calls in to functions in setup-bus.c
so some builds of ppc32 would fail.

Note, ppc32 usage of setup-irq.c is limited to arch/ppc and should be
removed when arch/ppc goes away.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-27 14:07:37 -06:00
Greg Kroah-Hartman c10997f657 Kobject: convert drivers/* from kobject_unregister() to kobject_put()
There is no need for kobject_unregister() anymore, thanks to Kay's
kobject cleanup changes, so replace all instances of it with
kobject_put().


Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:40 -08:00
Greg Kroah-Hartman 2b93730318 PCI: remove foolish code from pci-driver.c
The PCI bus should not be trying to declare its own attribute type.
Especially as this code could never ever be called because the driver
core overwrites the driver kobject type to be its own internal type.
Delete all of this code as it was never being used and is not correct.

Also update my copyright on the file while I'm touching things there.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:34 -08:00
Greg Kroah-Hartman 03d43b19b9 PCI: use proper call to driver_create_file
Don't try to call the "raw" sysfs_create_file when we already have a
helper function to do this kind of work for us.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:33 -08:00
Greg Kroah-Hartman b249072ee6 driver core: add way to get to bus device klist
This allows an easier way to get to the device klist associated with a
struct bus_type (you have three to choose from...)  This will make it
easier to move these fields to be dynamic in a future patch.

The only user of this is the PCI core which horribly abuses this
interface to rearrange the order of the pci devices.  This should be
done using the existing bus device walking functions, but that's left
for future patches.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:33 -08:00
Greg Kroah-Hartman 0fed80f7a6 driver core: add way to get to bus kset
This allows an easier way to get to the kset associated with a struct
bus_type (you have three to choose from...)  This will make it easier to
move these fields to be dynamic in a future patch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:33 -08:00
Greg Kroah-Hartman 64dbcac3a1 Kobject: change drivers/pci/hotplug/pci_hotplug_core.c to use kobject_init_and_add
Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:28 -08:00
Greg Kroah-Hartman f55842f232 kobject: clean up rpadlpar horrid sysfs abuse
rpadlpar pci hotplug driver was doing some pretty bad stuff with the
sysfs files.  This cleans up the logic to be sane and gets rid of the
gratuitous kset that is not needed for a simple directory like this.

Note, this patch is not even build tested, let alone run-time tested.
Someone with access to this hardware and can test would be greatly
appreciated.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: John Rose <johnrose@austin.ibm.com>
Cc: Badari Pulavarty <pbadari@gmail.com>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:24 -08:00
Greg Kroah-Hartman 81ace5cd8f kset: convert pci hotplug to use kset_create_and_add
This also renames pci_hotplug_slots_subsys to pcis_hotplug_slots_kset
catch all current users with a build error instead of a build warning
which can easily be missed.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:14 -08:00
Greg Kroah-Hartman 3514faca19 kobject: remove struct kobj_type from struct kset
We don't need a "default" ktype for a kset.  We should set this
explicitly every time for each kset.  This change is needed so that we
can make ksets dynamic, and cleans up one of the odd, undocumented
assumption that the kset/kobject/ktype model has.

This patch is based on a lot of help from Kay Sievers.

Nasty bug in the block code was found by Dave Young
<hidave.darkstar@gmail.com>

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:10 -08:00
Paul Mackerras 9156ad4833 Merge branch 'linux-2.6' 2008-01-24 10:07:21 +11:00
Zhao Yakui d1ec7298fc ACPI: apply quirk_ich6_lpc_acpi to more ICH8 and ICH9
It is important that these resources be reserved
to avoid conflicts with well known ACPI registers.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-11 00:24:55 -05:00
Linus Torvalds ad7edfe049 [PCI] Do not enable CRS Software Visibility by default
It appears that some PCI-E bridges do the wrong thing in the presense of
CRS Software Visibility and MMCONFIG.  In particular, it looks like an
ATI bridge (device ID 7936) will return 0001 in the vendor ID field of
any bridged devices indefinitely.

Not enabling CRS SV avoids the problem, and as we currently do not
really make good use of the feature anyway (we just time out rather than
do any threaded discovery as suggested by the CRS specs), we're better
off just not enabling it.

This should fix a slew of problem reports with random devices (generally
graphics adapters or fairly high-performance networking cards, since it
only affected PCI-E) not getting properly recognized on these AMD systems.

If we really want to use CRS-SV, we may end up eventually needing a
whitelist of systems where this should be enabled, along with some kind
of "pcibios_enable_crs()" query to call the system-specific code.

Suggested-by: Loic Prylli <loic@myri.com>
Tested-by: Kai Ruhnau <kai@tragetaschen.dyndns.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-27 21:21:36 -08:00
Paul Mackerras c2a7dcad9f Merge branch 'linux-2.6' 2007-12-21 22:21:08 +11:00
Benjamin Herrenschmidt bf5e2ba28f [POWERPC] Merge PCI resource fixups
The PCI code in 32 and 64 bits fixes up resources differently.

32 bits uses a header quirk plus handles bridges in pcibios_fixup_bus()
while 64 bits does things in various places depending on whether you
are using OF probing, using PCI hotplug, etc...

This merges those by basically using the 32 bits approach for both,
with various tweaks to make 64 bits work with the new approach.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-20 16:18:09 +11:00
Gary Hade bb44609361 PCI: Restore PCI expansion ROM P2P prefetch window creation
Restore PCI expansion ROM P2P prefetch window creation.

This patch reverts previous "Avoid creating P2P prefetch
window for expansion ROMs" change due to regressions that
were spotted on some systems.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-12-17 10:41:19 -08:00
Linus Torvalds af1bff4f1d Revert "PCI: fix IDE legacy mode resources"
This reverts commit fd6e732186, which
helped up things on MIPS, but was wrong for everything else.  As Ralf
Baechle puts it:

  "It seems the whole MIPS resource managment is complicated enough (out
   of necessity) that only a few people actually grok it.  Ioports being
   actually memory mapped on MIPS only makes the confusion worse, sigh."

Requested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Alan Cox <alan@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 07:40:54 -08:00
Randy Dunlap 26e6c66e47 pci hotplug: kernel-doc fixes
acpiphp.h: not using kernel-doc, so change /** to /*
acpiphp_core.c: lots of kernel-doc cleanups
acpiphp_glue.c: lots of kernel-doc cleanups
acpiphp_ibm.c: lots of kernel-doc cleanups
cpqphp_core.c: lots of kernel-doc cleanups
cpqphp_ctrl.c: lots of kernel-doc cleanups
fakephp.c:  correct kernel-doc notation
pciehp_ctrl.c: correct kernel-doc notation
rpadlpar_core.c: correct function names & kernel-doc notation
rpaphp_core.c: correct kernel-doc notation
shpchp_ctrl.c: correct kernel-doc notation

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28 14:35:26 -08:00
Randy Dunlap d885c6b75b pci-aer: fix kernel-doc mistakes
Fix kernel-doc parameter names and ending block comments (change **/
to */).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28 14:35:26 -08:00
Julia Lawall 151fc5dfc8 PCI: drivers/pci/pci-sysfs.c: Add missing pci_dev_put
There should be a pci_dev_put when breaking out of a loop that iterates
over calls to pci_get_device and similar functions.

This was fixed using the following semantic patch.

// <smpl>
@@
identifier d;
type T;
expression e;
iterator for_each_pci_dev;
@@

T *d;
...
for_each_pci_dev(d)
  {... when != pci_dev_put(d)
       when != e = d
(
   return d;
|
+  pci_dev_put(d);
?  return ...;
)
...}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28 14:35:26 -08:00
Linas Vepstas bf164410d0 PCI: pcie portdriver: initialize returned value
The pcie protdrv status can be returned uninitialized,
if there are no children under a device. This leads to
bad responses downstream. Fix this.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28 14:35:25 -08:00
Jeff Garzik bd3989e006 PCI: Add Kconfig option to disable deprecated pci_find_* API
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:17 -08:00
Adrian Bunk 0039541088 PCI Hotplug: cpqhp_pushbutton_thread(): remove a pointless if() check
The Coverity checker spotted that we'd have already oops'ed if "ctrl"
was NULL.

Additionally, "func" had just been checked for not being NULL.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:17 -08:00
Adrian Bunk d73460d79b PCI: make pci_match_device() static
pci_match_device() no longer has any other users.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:17 -08:00
David Miller 5257dca0bd PCI: Remove 3 incorrect MSI quirks.
Now that we have dealt with the real issue, in that some ATI SATA and
USB controllers needed the INTX_DISABLE quirk, we can remove these AMD
chipset global MSI disabling quirks.

This reverts three changesets:

4be8f90643 (PCI: disable MSI on RS690)
aea6a433f5 (PCI: disable MSI on RD580)
f122392f67 (PCI: disable MSI on RX790)

This is based upon testing and feedback from
Shane Huang <Shane.Huang@amd.com>.

Cc: Shane Huang <Shane.Huang@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:17 -08:00
David Miller bc38b411fe PCI: Add MSI INTX_DISABLE quirks for ATI SB700/800 SATA and IXP SB400 USB
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:16 -08:00
David Miller ba698ad4b7 PCI: Add quirk for devices which disable MSI when INTX_DISABLE is set.
A reasonably common problem with some devices is that they will
disable MSI generation when the INTX_DISABLE bit is set in the
PCI_COMMAND register.

Quirk this explicitly, guarding the pci_intx() calls in msi.c with
this quirk indication.

The first entries for this quirk are for 5714 and 5780 Tigon3 chips,
and thus we can remove the workaround code from the tg3.c driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:16 -08:00
David Miller 1d84b5424e PCI: Add MSI quirk for ServerWorks HT1000 PCIX bridge.
This is the fix for the following problem:

https://bugzilla.redhat.com/show_bug.cgi?id=227657

The bnx2 device 5706 complains about MSI not working behind a
ServerWorks HT1000 PCIX bridge. An earlier commit to fix the problem:

e3008dedff4bdc96a5f67224cd3d8d12237082a0:

"PCI: disable MSI by default on systems with Serverworks HT1000 chips"

was not entirely correct, and has been reverted.

MSI does not work on the PCIX bus because the BIOS did not set the
HT_MSI_FLAGS_ENABLE bit in the HyperTransport MSI capability on the
bridge.  We use the existing quirk_msi_ht_cap() to detect the problem
and disable MSI in all buses behind it.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Cc: Anantha Subramanyam <ananth@broadcom.com>
Cc: Naren Sankar <nsankar@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:16 -08:00
David Miller 2cc31879f8 PCI: Revert "PCI: disable MSI by default on systems with Serverworks HT1000 chips"
This reverts commit e3008dedff.

The real bug was an INTX issue in the tg3 ethernet chip, and
cured by commit c129d962a66c76964954a98b38586ada82cf9381

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-05 13:35:16 -08:00
Takashi Iwai 10e27ed4ba intel-iommu: Fix array overflow
Fix possible array overflow:

drivers/pci/intel-iommu.c: In function ¡dmar_get_fault_reason¢:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds
drivers/pci/intel-iommu.c: In function ¡iommu_page_fault¢:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Mark Gross <mgross@linux.intel.com>
Acked-by: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-30 08:06:55 -07:00
Joerg Roedel 395624fcdd x86 gart: rename iommu.h to gart.h
This patch renames the include file asm-x86/iommu.h to asm-x86/gart.h to make
clear to which IOMMU implementation it belongs. The patch also adds "GART" to
the Kconfig line.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-30 00:22:22 +01:00
Al Viro 4fe05bbcd5 intel-iommu fixes
- off by one in dmar_get_fault_reason() (maximal index in array is
   ARRAY_SIZE()-1, not ARRAY_SIZE())
 - NULL noise removal
 - __iomem annotation fix

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-29 07:41:32 -07:00
Tejun Heo 3a9e3a51dd jmicron: update quirk for JMB361/3/5/6
Set bits 0, 4, 5 and 7 of PCI configuration register 0x40 in the
quirk.  This has the following effects and is recommended by the
vendor.

* Force enable of IDE channels (used to be left alone as BIOS
  configured)

* Change initial phase behavior of PIO cycle such that the host pulls
  down the bus instead of tristating it.  Vendor recommends this
  setting.

The above settings are better for the current generation of
controllers and needed for the upcoming next generation.

Tested on JMB363.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Ethan Hsiao <ethanhsiao@jmicron.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-23 21:20:02 -04:00
FUJITA Tomonori 12d4d40e6f intel-iommu: fix sg_page()
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-23 09:49:33 +02:00
FUJITA Tomonori c03ab37cbe intel-iommu sg chaining support
x86_64 defines ARCH_HAS_SG_CHAIN. So if IOMMU implementations don't
support sg chaining, we will get data corruption.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S 358dd8ac53 intel-iommu: fix for IOMMU early crash
pci_dev's->sysdata is highly overloaded and currently IOMMU is broken due
to IOMMU code depending on this field.

This patch introduces new field in pci_dev's dev.archdata struct to hold
IOMMU specific per device IOMMU private data.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S f76aec76ec intel-iommu: optimize sg map/unmap calls
This patch adds PageSelectiveInvalidation support replacing existing
DomainSelectiveInvalidation for intel_{map/unmap}_sg() calls and also
enables to mapping one big contiguous DMA virtual address which is mapped
to discontiguous physical address for SG map/unmap calls.

"Doamin selective invalidations" wipes out the IOMMU address translation
cache based on domain ID where as "Page selective invalidations" wipes out
the IOMMU address translation cache for that address mask range which is
more cache friendly when compared to Domain selective invalidations.

Here is how it is done.
1) changes to iova.c
alloc_iova() now takes a bool size_aligned argument, which
when when set, returns the io virtual address that is
naturally aligned to 2 ^ x, where x is the order
of the size requested.

Returning this io vitual address which is naturally
aligned helps iommu to do the "page selective
invalidations" which is IOMMU cache friendly
over "domain selective invalidations".

2) Changes to driver/pci/intel-iommu.c
Clean up intel_{map/unmap}_{single/sg} () calls so that
s/g map/unamp calls is no more dependent on
intel_{map/unmap}_single()

intel_map_sg() now computes the total DMA virtual address
required and allocates the size aligned total DMA virtual address
and maps the discontiguous physical address to the allocated
contiguous DMA virtual address.

In the intel_unmap_sg() case since the DMA virtual address
is contiguous and size_aligned, PageSelectiveInvalidation
is used replacing earlier DomainSelectiveInvalidations.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Greg KH <greg@kroah.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Suresh B <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S 49a0429e53 Intel IOMMU: Iommu floppy workaround
This config option (DMAR_FLPY_WA) sets up 1:1 mapping for the floppy device so
that the floppy device which does not use DMA api's will continue to work.

Once the floppy driver starts using DMA api's this config option can be turn
off or this patch can be yanked out of kernel at that time.

[akpm@linux-foundation.org: cleanups, rename things, build fix]
[jengelh@computergmbh.de: Kconfig fixes]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S e820482cd2 Intel IOMMU: Iommu Gfx workaround
When we fix all the opensource gfx drivers to use the DMA api's, at that time
we can yank this config options out.

[jengelh@computergmbh.de: Kconfig fixes]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S 3460a6d9ce Intel IOMMU: DMAR fault handling support
MSI interrupt handler registrations and fault handling support for Intel-IOMMU
hadrware.

This patch enables the MSI interrupts for the DMA remapping units and in the
interrupt handler read the fault cause and outputs the same on to the console.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:19 -07:00
Keshavamurthy, Anil S 7d3b03ce7b Intel IOMMU: Intel iommu cmdline option - forcedac
Introduce intel_iommu=forcedac commandline option.  This option is helpful to
verify the pci device capability of handling physical dma'able address greater
than 4G.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Keshavamurthy, Anil S eb3fa7cb51 Intel IOMMU: Avoid memory allocation failures in dma map api calls
Intel IOMMU driver needs memory during DMA map calls to setup its internal
page tables and for other data structures.  As we all know that these DMA map
calls are mostly called in the interrupt context or with the spinlock held by
the upper level drivers(network/storage drivers), so in order to avoid any
memory allocation failure due to low memory issues, this patch makes memory
allocation by temporarily setting PF_MEMALLOC flags for the current task
before making memory allocation calls.

We evaluated mempools as a backup when kmem_cache_alloc() fails
and found that mempools are really not useful here because
 1) We don't know for sure how much to reserve in advance
 2) And mempools are not useful for GFP_ATOMIC case (as we call
    memory alloc functions with GFP_ATOMIC)

(akpm: point 2 is wrong...)

With PF_MEMALLOC flag set in the current->flags, the VM subsystem avoids any
watermark checks before allocating memory thus guarantee'ing the memory till
the last free page.  Further, looking at the code in mm/page_alloc.c in
__alloc_pages() function, looks like this flag is useful only in the
non-interrupt context.

If we are in the interrupt context and memory allocation in IOMMU driver fails
for some reason, then the DMA map api's will return failure and it is up to
the higher level drivers to retry.  Suppose, if upper level driver programs
the controller with the buggy DMA virtual address, the IOMMU will block that
DMA transaction when that happens thus preventing any corruption to main
memory.

So far in our test scenario, we were unable to create any memory allocation
failure inside dma map api calls.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Keshavamurthy, Anil S ba39592764 Intel IOMMU: Intel IOMMU driver
Actual intel IOMMU driver.  Hardware spec can be found at:
http://www.intel.com/technology/virtualization

This driver sets X86_64 'dma_ops', so hook into standard DMA APIs.  In this
way, PCI driver will get virtual DMA address.  This change is transparent to
PCI drivers.

[akpm@linux-foundation.org: remove unneeded cast]
[akpm@linux-foundation.org: build fix]
[bunk@stusta.de: fix duplicate CONFIG_DMAR Makefile line]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Keshavamurthy, Anil S f8de50eb6b Intel IOMMU: IOVA allocation and management routines
This code implements a generic IOVA allocation and management.  As per Dave's
suggestion we are now allocating IO virtual address from Higher DMA limit
address rather than lower end address and this eliminated the need to preserve
the IO virtual address for multiple devices sharing the same domain virtual
address.

Also this code uses red black trees to store the allocated and reserved iova
nodes.  This showed a good performance improvements over previous linear
linked list.

[akpm@linux-foundation.org: remove inlines]
[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Keshavamurthy, Anil S 994a65e25d Intel IOMMU: PCI generic helper function
When devices are under a p2p bridge, upstream transactions get replaced by the
device id of the bridge as it owns the PCIE transaction.  Hence its necessary
to setup translations on behalf of the bridge as well.  Due to this limitation
all devices under a p2p share the same domain in a DMAR.

We just cache the type of device, if its a native PCIe device
or not for later use.

[akpm@linux-foundation.org: BUG_ON -> WARN_ON+recover]
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Keshavamurthy, Anil S 10e5247f40 Intel IOMMU: DMAR detection and parsing logic
This patch supports the upcomming Intel IOMMU hardware a.k.a.  Intel(R)
Virtualization Technology for Directed I/O Architecture and the hardware spec
for the same can be found here
http://www.intel.com/technology/virtualization/index.htm

FAQ! (questions from akpm, answers from ak)

> So...  what's all this code for?
>
> I assume that the intent here is to speed things up under Xen, etc?

Yes in some cases, but not this code.  That would be the Xen version of this
code that could potentially assign whole devices to guests.  I expect this to
be only useful in some special cases though because most hardware is not
virtualizable and you typically want an own instance for each guest.

Ok at some point KVM might implement this too; i likely would use this code
for this.

> Do we
> have any benchmark results to help us to decide whether a merge would be
> justified?

The main advantage for doing it in the normal kernel is not performance, but
more safety.  Broken devices won't be able to corrupt memory by doing random
DMA.

Unfortunately that doesn't work for graphics yet, for that need user space
interfaces for the X server are needed.

There are some potential performance benefits too:

- When you have a device that cannot address the complete address range an
  IOMMU can remap its memory instead of bounce buffering.  Remapping is likely
  cheaper than copying.

- The IOMMU can merge sg lists into a single virtual block.  This could
  potentially speed up SG IO when the device is slow walking SG lists.  [I
  long ago benchmarked 5% on some block benchmark with an old MPT Fusion; but
  it probably depends a lot on the HBA]

And you get better driver debugging because unexpected memory accesses from
the devices will cause a trappable event.

>
> Does it slow anything down?

It adds more overhead to each IO so yes.

This patch:

Add support for early detection and parsing of DMAR's (DMA Remapping) reported
to OS via ACPI tables.

DMA remapping(DMAR) devices support enables independent address translations
for Direct Memory Access(DMA) from Devices.  These DMA remapping devices are
reported via ACPI tables and includes pci device scope covered by these DMA
remapping device.

For detailed info on the specification of "Intel(R) Virtualization Technology
for Directed I/O Architecture" please see
http://www.intel.com/technology/virtualization/index.htm

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Greg KH <greg@kroah.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22 08:13:18 -07:00
Linus Torvalds 4271e0f7e1 Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.c
Commit 5a7ad7f044 removed all uses of
'retval', but didn't remove the variable itself.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 09:07:58 -07:00
Al Viro b4482a4b2e more trivial signedness fixes in drivers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14 12:41:52 -07:00
Linus Torvalds 6a84258e5f Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (37 commits)
  PCI: merge almost all of pci_32.h and pci_64.h together
  PCI: X86: Introduce and enable PCI domain support
  PCI: Add 'nodomains' boot option, and pci_domains_supported global
  PCI: modify PCI bridge control ISA flag for clarity
  PCI: use _CRS for PCI resource allocation
  PCI: avoid P2P prefetch window for expansion ROMs
  PCI: skip ISA ioresource alignment on some systems
  PCI: remove transparent bridge sizing
  pci: write file size to inode on proc bus file write
  pci: use size stored in proc_dir_entry for proc bus files
  pci: implement "pci=noaer"
  PCI: fix IDE legacy mode resources
  MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
  PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
  PCI: i386: Compaq EVO N800c needs PCI bus renumbering
  PCI: Remove no longer correct documentation regarding MSI vector assignment
  PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
  PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
  PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
  cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
  ...
2007-10-12 15:50:23 -07:00
Jeff Garzik 32a2eea795 PCI: Add 'nodomains' boot option, and pci_domains_supported global
* Introduce pci_domains_supported global, hardcoded to zero if
  !CONFIG_PCI_DOMAINS.

* Introduce 'nodomains' boot option, which clears pci_domains_supported
  on platforms that enable it by default (x86, x86-64, and others when
  they are converted to use this).

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:18 -07:00
Gary Hade 11949255d9 PCI: modify PCI bridge control ISA flag for clarity
Modify PCI Bridge Control ISA flag for clarity

This patch changes PCI_BRIDGE_CTL_NO_ISA to PCI_BRIDGE_CTL_ISA
and modifies it's clarifying comment and locations where used.
The change reduces the chance of future confusion since it makes
the set/unset meaning of the bit the same in both the bridge
control register and bridge_ctl field of the pci_bus struct.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:18 -07:00
Gary Hade fd64cb4606 PCI: avoid P2P prefetch window for expansion ROMs
Avoid creating P2P prefetch window for expansion ROMs

Because of the future possibility that P2P prefetch windows will contain
address ranges above 4GB some BIOSes are providing space in the P2P
non-prefetch windows for expansion ROMs.  This is due to expansion ROM
BAR 32-bit limitation.  When expansion ROM BARs without BIOS assigned
address(es) are currently found behind a P2P bridge, the kernel attempts
to create a P2P prefetch window for them even though space for them has
already been provided in the non-prefetch window.  _CRS on some systems
with certain resource conservation conscious BIOSes may not provide the
extra 1MB or more memory resource needed for the expansion ROM motivated
prefetch window causing resource allocation errors.

This change corrects the problem by removing IORESOURCE_PREFETCH from
the expansion ROM flags initialization.  It also removes
IORESOURCE_CACHEABLE which seems inappropriate if only non-cacheable
memory is available.

Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:18 -07:00
Gary Hade 036fff4cf7 PCI: skip ISA ioresource alignment on some systems
Skip ISA ioresource alignment on some systems

To conserve limited PCI i/o resource on some IBM multi-node systems, the
BIOS allocates (via _CRS) and expects the kernel to use addresses in
ranges currently excluded by pcibios_align_resource() [i386/pci/i386.c].
This change allows the kernel to use the currently excluded address
ranges on the IBM x3800, x3850, and x3950.

Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:18 -07:00
Gary Hade 8fa5913d54 PCI: remove transparent bridge sizing
Remove transparent bridge sizing.

Due to code in pci_read_bridge_bases() [drivers/pci/probe.c] the child
bus of a transparent bridge already has access to the parent bus
resources so transparent bridge sizing appears unnecessary.  The bridge
sizing includes alignment and granularity adjustments that can cause
significantly more memory to be reserved from the parant bus than
required by devices on the child bus and allotted by _CRS.

Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
David Rientjes ecb3908046 pci: write file size to inode on proc bus file write
When a /proc/bus/pci file is written to, the size of that PCI device's
configuration space must be written to the inode.  Otherwise, it is
possible for the file to specify a size of 0 on stat if a task is holding
the same file open.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
David Rientjes cd68602f36 pci: use size stored in proc_dir_entry for proc bus files
On pci_proc_attach_device(), the size of the PCI configuration space is
stored in the proc_dir_entry as the size of the file.  Thus, the procfs
interface to PCI devices should use it instead of the device directly.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
Randy Dunlap 7f78576366 pci: implement "pci=noaer"
For cases in which CONFIG_PCIEAER=y (such as distro kernels), allow users
to disable PCIE Advanced Error Reporting by using "pci=noaer" on the
kernel command line.

This can be used to work around hardware or (kernel) software problems.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
Yoichi Yuasa fd6e732186 PCI: fix IDE legacy mode resources
I got the following error on MIPS Cobalt.

PCI: Unable to reserve I/O region #1:8@f00001f0 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 0 (errno=-16)
PCI: Unable to reserve I/O region #3:8@f0000170 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 1 (errno=-16)
pata_via 0000:00:09.1: no available native port

The legacy mode IDE resources set the following order.

pci_setup_device()
    Legacy mode ATA controllers have fixed addresses.
    IDE resources: 0x1F0-0x1F7, 0x3F6, 0x170-0x177, 0x376
    |
    V
pcibios_fixup_bus()
    MIPS Cobalt PCI bus regions have the -0x10000000 offset from PCI resources.
    pcibios_fixup_bus() fix PCI bus regions.
    0x1F0 - 0x10000000 = 0xF00001F0
    |
    V
ata_pci_init_one()
    PCI: Unable to reserve I/O region #1:8@f00001f0 for device 0000:00:09.1

In some architectures, PCI bus regions have the offset from PCI resources. 
For this reason, pci_setup_device() should set PCI bus regions to
dev->resource[].

[akpm@linux-foundation.org: use struct initialiser]
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
Roland Dreier cbf5d9e6b9 MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
While reading the MSI code trying to find a reason why MSI wouldn't
work for devices that have a 32-bit MSI address capability, I noticed
that read_msi_msg() seems to read the message data from the wrong
offset in this case.

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
Michael Ellerman a56bc69a18 PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
The code for dynamically assigning new ids to PCI drivers,
store_new_id(), calls list_add_tail() with the list head and new node
arguments in reversed order.

The result is that every new id written essentially overwrites the
previous list of ids.

Caught with the help of Rusty's "horribly bad" list_node patch:
 http://lkml.org/lkml/2007/6/10/10

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:17 -07:00
Johannes Goecke 346ca04d05 PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
On the "MSI K8T Neo2-FIR" board the BIOS disables the onboard
soundcard, if a second PCI soundcard is present.

This patch sets the korrect register bit to enable the onboard sound.

Removed old code in /drivers/pci/quirks.c that only checks for the
PCI-ID and fires on any Board with VIA 8237.

New code in /arch/i386/pci/fixup.c checks the DMI-tables and only runs
on the specific board.


Signed-off-by: Johannes Goecke <goecke@upb.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:16 -07:00
Auke Kok 651472fbff PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:16 -07:00
Auke Kok aa288d4d6b PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Peter Oruba <peter.oruba@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:16 -07:00
Auke Kok 3799a4e7d8 cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
While PCI_CLASS_REVISION and PCI_REVISION_ID are identical, the
code here discards the revision content and is only interested in
the class number.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Krosten Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:16 -07:00
Christoph Hellwig fa007d8beb pci: hotplug: cpqphp: convert to kthread infrastructure
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:15 -07:00
Kristen Carlson Accardi 2d100fe8f6 pci: hotplug: ibmphp: convert to kthread
Convert ibmphp to new kthread api

Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:15 -07:00
vignesh babu 229f5afded PCI: is_power_of_2 in drivers/pci/pci.c
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)

Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:15 -07:00
Kenji Kaneshige 40730d1042 pciehp: minor cleanups for pciehp_hpc.c
Minor cleanups for pciehp_hpc.c. The 80 column rules, removing
unnecessary lines, and so on.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:15 -07:00
Kenji Kaneshige 9fe8164536 pciehp: remove trailing whitespace form pciehp_pci.c
Remove trailing whitespaces from pciehp_pci.c.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kenji Kaneshige 36ed27b07b pciehp: remove trailing whitespace from pciehp_ctrl.c
Remove trailing whitespaces from pciehp_ctrl.c.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kenji Kaneshige a073a82674 pciehp: remove trailing whitespace from pciehp_core.c
Remove trailing whitespaces from pciehp_core.c.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kenji Kaneshige 71ad556dad pciehp: remove trailing whitespace from pciehp_hpc.c
Remove trailing whitespaces from pciehp_hpc.c.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kenji Kaneshige c842648377 pciehp: remove DBG_XXX_ROUTINE
This patch removes DBG_ENTER_ROUTIN, DBG_LEAVE_ROUTINE and related
code, which seem no longer needed.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kristen Carlson Accardi 57d90c0276 PCI Hotplug: pciehp: Request control over PCI Express Capability as well as Native hotplug
According to the PCI firmware spec (3.0), the OS must claim control
over the PCI Express Capability bits in addition to the PCI Express
Native Hot Plug feature when executing _OSC.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kristen Carlson Accardi 1cf53d5ddb PCI Hotplug: pciehp: Dont check bridge control on remove
When removing a device with a bridge on it, only read the
bridge control register if the adapter is actually present.

Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Kenji Kaneshige 89913bf77a pciehp: remove CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE
Remove unnecessary CONFIG_HOTPLUG_PCI_PCIE_EVENT_MODE.

The CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE option is not needed
because polling mechanism can be enabled through 'pciehp_poll_mode'
module option.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:14 -07:00
Mariusz Kozlowski 73a985a140 PCI Hotplug: cpqphp_ctrl.c: kmalloc + memset conversion to kzalloc
drivers/pci/hotplug/cpqphp_ctrl.c | 79698 -> 79638 (-60 bytes)
 drivers/pci/hotplug/cpqphp_ctrl.o | 192896 -> 192736 (-160 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 15:03:13 -07:00
Tejun Heo 5a7ad7f044 sysfs: kill sysfs_update_file()
sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now
reclaimable making the reported modification time unreliable.  There's
only one user (pci hotplug) of this notification mechanism and it
reportedly isn't utilized from userland.

Kill sysfs_update_file().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:09 -07:00
Greg Kroah-Hartman 34980ca8fa Drivers: clean up direct setting of the name of a kset
A kset should not have its name set directly, so dynamically set the
name at runtime.

This is needed to remove the static array in the kobject structure which
will be changed in a future patch.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman 19c38de88a kobjects: fix up improper use of the kobject name field
A number of different drivers incorrect access the kobject name field
directly.  This is not correct as the name might not be in the array.
Use the proper accessor function instead.
2007-10-12 14:51:02 -07:00
Kay Sievers 7eff2e7a8b Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a
long list of parameters. It does no longer require the caller to do the
proper buffer termination and size accounting, which is currently wrong
in some places. It fixes a known bug where parts of the uevent
environment are overwritten because of wrong index calculations.

Many thanks to Mathieu Desnoyers for finding bugs and improving the
error handling.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Thomas Gleixner fb9aa6f1d4 i386: move pci
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11 11:16:36 +02:00
Benjamin Herrenschmidt 1bef7dc00c Fix bogus PCI quirk for e100
Linas reported me that some machines were crashing at boot in
quirk_e100_interrupt. It appears that this quirk is doing an ioremap
directly on a PCI BAR value, which isn't legal and will cause all sorts
of bad things to happen on architectures where PCI BARs don't directly
match processor bus addresses.

This fixes it by using the proper PCI resources instead which is possible
since the quirk has been moved by a previous commit to happen late enough
for that.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-28 16:21:10 -07:00
gw.kernel@tnode.com d7698edca8 PCI: unhide SMBus on Compaq Deskpro EP 401963-001 motherboard
PCI quirk to unhide SMBus on Compaq Deskpro EP 401963-001 (PCA# 010174) motherboard.

Signed-off-by: Greg White <gw.kernel@tnode.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-09-11 04:22:16 -07:00
Ralf Baechle e365c3e75e PCI: remove devinit from pci_read_bridge_bases
On MIPS with PCI && !HOTPLUG, I'm currently getting the following modpost
warning:

  MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0x1ce128): Section mismatch: reference to .init.text:pci_read_bridge_bases (between 'pcibios_fixup_bus' and 'pcibios_enable_device')

On MIPS I have the call chains pci_scan_child_bus -> pcibios_fixup_bus ->
pci_read_bridge_bases.  pci_scan_child_bus can't be __devinit because it
it is an exported symbol, thus pcibios_fixup_bus and pci_read_bridge_bases
can't be either.

For some reason I don't see this issue on x86; I blame compiler differences.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-09-11 04:22:16 -07:00
Len Brown 25c87f7f2a Pull events into release branch
Conflicts:

	drivers/acpi/video.c

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:44:01 -04:00
Jeremy Fitzhardinge 5e1f198bbf acpiphp_ibm: add missing '\n' to error message
Add missing \n to error in ibm_find_acpi_device.

Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Adrian Bunk <trivial@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:39:13 -04:00
Len Brown 14e04fb34f ACPI: Schedule /proc/acpi/event for removal
Schedule /proc/acpi/event for removal in 6 months.

Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event()
to make sure there is no confusion that it is for /proc/acpi/event only.

Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event.
There is no functional change if CONFIG_ACPI_PROC_EVENT=y

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 15:20:26 -04:00
Zhang Rui 962ce8ca06 ACPI: don't duplicate input events on netlink
The previous events patch added a netlink event for every
user of the legacy /proc/acpi/event interface.

However, some users of /proc/acpi/event are really input events,
and they already report their events via the input layer.

Introduce a new interface, acpi_bus_generate_netlink_event(),
which is explicitly called by devices that want to repoprt
events via netlink.  This allows the input-like events
to opt-out of generating netlink events.  In summary:

events that are sent via netlink:
	ac/battery/sbs
	thermal
	processor
	thinkpad_acpi dock/bay

events that are sent via input layer:
	button
	video hotkey
	thinkpad_acpi hotkey
	asus_acpi/asus-laptop hotkey
	sonypi/sonylaptop

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 14:27:23 -04:00
Jean Delvare 18166c1a50 PCI: Run k8t_sound_hostbridge quirk only when needed
The k8t_sound_hostbridge PCI quick fires on my motherboard (Jetway
K8M8MS) while it shouldn't: the on-board sound chip is not disabled
and is working just fine. Looking at the code, I see that we are
running the quirk for two distinct register values (0x88 and 0xc8)
and then clear bit 6 (0x40). However value 0x88 already has bit 6
cleared so this is a no-op. This is what happens on my board. Thus I
believe that the quirk should only be run for register value 0xc8.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:41 -07:00
Tejun Heo f122392f67 PCI: disable MSI on RX790
RX790 can't do MSI like its predecessors.  Disable MSI on RX790.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:41 -07:00
Tejun Heo aea6a433f5 PCI: disable MSI on RD580
RD580 can't do MSI like its predecessors.  Disable MSI on RD580.

Signed-off-by: Tejun Heo <teheo@suse.de>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:41 -07:00
Tejun Heo 4be8f90643 PCI: disable MSI on RS690
RS690 can't do MSI like its predecessors.  Disable MSI on RS690.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Henry Su <henry.su@amd.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:41 -07:00
Bernhard Kaindl d55bef515a PCI: lets kill the 'PCI hidden behind bridge' message
Adrian Bunk wrote:
> Alois Nešpor wrote
>> PCI: Bus #0b (-#0e) is hidden behind transparent bridge #0a (-#0b) (try 'pci=assign-busses')
>> Please report the result to linux-kernel to fix this permanently"
>>
>> dmesg:
>> "Yenta: Raising subordinate bus# of parent bus (#0a) from #0b to #0e"
>> without pci=assign-busses and nothing with pci=assign-busses.
> 
> Bernhard?

Ok, lets kill the message. As Alois Nešpor also saw, that's fixed up by Yenta,
so PCI does not have to warn about it. PCI could still warn about it if
is_cardbus is 0 in that instance of pci_scan_bridge(), but so far I have
not seen a report where this would have been the case so I think we can
spare the kernel of that check (removes ~300 lines of asm) unless debugging
is done.

History: The whole check was added in the days before we had the fixup
for this in Yenta and pci=assign-busses was the only way to get CardBus
cards detected on many (not all) of the machines which give this warning.

In theory, there could be cases when this warning would be triggered and
it's not cardbus, then the warning should still apply, but I think this
should only be the case when working on a completely broken PCI setup,
but one may have already enabled the debug code in drivers/pci and the
patched check would then trigger.

I do not sign this off yet because it's completely untested so far, but
everyone is free to test it (with the #ifdef DEBUG replaced by #if 1 and
pr_debug( changed to printk(.

We may also dump the whole check (remove everything within the #ifdef from
the source) if that's perferred.

On Alois Nešpor's machine this would then (only when debugging) this message:

"PCI: Bus #0b (-#0e) is partially hidden behind transparent bridge #0a (-#0b)"

"partially" should be in the message on his machine because #0b of #0b-#0e 
is reachable behind #0a-#0b, but not #0c-#0e.

But that differentiation is now moot anyway because the fixup in Yenta takes
care of it as far as I could see so far, which means that unless somebody
is debugging a totally broken PCI setup, this message is not needed anymore,
not even for debugging PCI.


Ok, here the patch with the following changes:

* Refined to say that the bus is only partially hidden when the parent
  bus numbers are not totally way off (outside of) the child bus range
* remove the reference to pci=assign-busses and the plea to report it

We could add a pure source code-only comment to keep a reference to
pci=assign-busses the in case when this is triggered by someone who
is debugging the cause of this message and looking the way to solve it.

From: Bernhard Kaindl <bk@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:40 -07:00
Ingo Molnar 60ac8f20fe pci/hotplug/cpqphp_ctrl.c: remove stale BKL use
remove stale BKL use from drivers/pci/hotplug/cpqphp_ctrl.c.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:40 -07:00
Marian Balakowicz 4e68fc97b1 PCI: quirk_e100_interrupt() called too early
quirk_e100_interrupts() is called after PCI controller is initialized
and before PCI bus enumeration is performed. On some powerpc platforms
which modify PCI controller configuration and set different MEM and IO
windows than those set by firmware quirk_e100_interrupt() is causing
kernel panic as it tries to read from device BAR0 offets which at this
time points to a invalid PCI window (set by firmware).

This patch delays the quirk_100_interrupt() to pci_fixup_final phase,
which happens after bus enumeration and before PCI enable and
device driver initialization.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:40 -07:00
Kumar Gala ce5ccdef10 PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.h
We need pci_bus_find_capability() in some arch/powerpc code so move
the prototype into a header accessible to it.

Also kill the duplicate prototype for pci_bus_alloc_resource().

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 14:48:40 -07:00
Tejun Heo 0b62e13b5c pci: rename __pci_reenable_device() to pci_reenable_device()
Rename __pci_reenable_device() to pci_reenable_device().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-01 10:00:56 -04:00
Randy Dunlap 42e61f4adb kernel-doc fixes for PCI and drivers/base/
Fix undocumented function parameters in PCI and drivers/base.

Warning(linux-2.6.23-rc1//drivers/pci/pci.c:1526): No description found for parameter 'rq'
Warning(linux-2.6.23-rc1//drivers/base/firmware_class.c:245): No description found for parameter 'bin_attr'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-30 14:25:12 -07:00
Len Brown 673d5b43da ACPI: restore CONFIG_ACPI_SLEEP
Restore the 2.6.22 CONFIG_ACPI_SLEEP build option, but now shadowing the
new CONFIG_PM_SLEEP option.

Signed-off-by: Len Brown <len.brown@intel.com>
[ Modified to work with the PM config setup changes. ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-29 16:53:59 -07:00
Linus Torvalds a4fb2122f1 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:
  ACPI: Kconfig: remove CONFIG_ACPI_SLEEP from source
  ACPI: quiet ACPI Exceptions due to no _PTC or _TSS
  ACPI: Remove references to ACPI_STATE_S2 from acpi_pm_enter
  ACPI: Kconfig: always enable CONFIG_ACPI_SLEEP on X86
  ACPI: Kconfig: fold /proc/acpi/sleep under CONFIG_ACPI_PROCFS
  ACPI: Kconfig: CONFIG_ACPI_PROCFS now defaults to N
  ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers
  ACPI: autoload modules - Create ACPI alias interface
  ACPI: autoload modules - ACPICA modifications
  ACPI: asus-laptop: Fix failure exits
  ACPI: fix oops due to typo in new throttling code
  ACPI: ignore _PSx method for hotplugable PCI devices
  ACPI: Use ACPI methods to select PCI device suspend state
  ACPI, PNP: hook ACPI D-state to PNP suspend/resume
  ACPI: Add acpi_pm_device_sleep_state helper routine
  ACPI: Implement the set_target() callback from pm_ops
2007-07-25 11:28:00 -07:00
Tejun Heo f0a664bbd1 PCI: export __pci_reenable_device()
Some odd ACPI implementations choke if certain controller is disabled
when ACPI suspend is invoked but we still need to make sure the PCI
device is enabled during resume.  Simply using pci_enable_device()
unbalances device enable count.  Export __pci_reenable_device().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-24 16:55:01 -04:00
Shaohua Li 10b3dcae0f ACPI: ignore _PSx method for hotplugable PCI devices
If the ACPI device has _EJ0, ignore the device.
_PSx will set power for the slot,
and the hotplug driver will take care of _PSx.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-07-22 04:18:45 -04:00
Shaohua Li ab826ca4cf ACPI: Use ACPI methods to select PCI device suspend state
applied after Rafel's 'PM: Update global suspend and hibernation
operations framework' patch set

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-07-22 04:18:32 -04:00
Yoann Padioleau dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Linus Torvalds 489de30259 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits)
  [POWERPC] Create add_rtc() function to enable the RTC CMOS driver
  [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number
  [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration
  [POWERPC] Oprofile support for Power 5++
  [POWERPC] Enable arbitary speed tty ioctls and split input/output speed
  [POWERPC] Make drivers/char/hvc_console.c:khvcd() static
  [POWERPC] Remove dead code for preventing pread() and pwrite() calls
  [POWERPC] Remove unnecessary #undef printk from prom.c
  [POWERPC] Fix typo in Ebony default DTS
  [POWERPC] Check for NULL ppc_md.init_IRQ() before calling
  [POWERPC] Remove extra return statement
  [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED
  [POWERPC] pasemi: Rename platform
  [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports
  [POWERPC] Add __read_mostly support for powerpc
  [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane
  [POWERPC] Create a dummy zImage if no valid platform has been selected
  [POWERPC] PS3: Bootwrapper support.
  [POWERPC] powermac i2c: Use mutex
  [POWERPC] Schedule removal of arch/ppc
  ...

Fixed up conflicts manually in:

	Documentation/feature-removal-schedule.txt
	arch/powerpc/kernel/pci_32.c
	arch/powerpc/kernel/pci_64.c
	include/asm-powerpc/pci.h

and asked the powerpc people to double-check the result..
2007-07-16 17:58:08 -07:00
Alexey Dobriyan aa0ac36518 Remove capability.h from mm.h
I forgot to remove capability.h from mm.h while removing sched.h!  This
patch remedies that, because the only inline function which was using
CAP_something was made out of line.

Cross-compile tested without regressions on:

	all powerpc defconfigs
	all mips defconfigs
	all m68k defconfigs
	all arm defconfigs
	all ia64 defconfigs

	alpha alpha-allnoconfig alpha-defconfig alpha-up
	arm
	i386 i386-allnoconfig i386-defconfig i386-up
	ia64 ia64-allnoconfig ia64-defconfig ia64-up
	m68k
	mips
	parisc parisc-allnoconfig parisc-defconfig parisc-up
	powerpc powerpc-up
	s390 s390-allnoconfig s390-defconfig s390-up
	sparc sparc-allnoconfig sparc-defconfig sparc-up
	sparc64 sparc64-allnoconfig sparc64-defconfig sparc64-up
	um-x86_64
	x86_64 x86_64-allnoconfig x86_64-defconfig x86_64-up

as well as my two usual configs.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:45 -07:00
Andrew Morton 35ef63f635 use no_pci_devices() in pci/search.c
We have an API function for this now.

Cc: Zhang Yanmin <yanmin.zhang@intel.com>
Cc: Greg KH <greg@kroah.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:41 -07:00
Zhang, Yanmin ed4aaadb1a fix jvc cdrom drive lockup
Before calling init_hwif_default, ide_unregister gets lock ide_lock and
disables irq.  init_hwif_default calls ide_default_io_base which calls
pci_get_device and later pci_get_subsys tries to apply for semaphore
pci_bus_sem and goes to sleep.

Mostly, pci_get_device should be called when irq is turned on.

ide_default_io_base just needs find if list pci_devices is empty.

Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Cc: Greg KH <greg@kroah.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:40 -07:00
Linus Torvalds 0806ca2ab3 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Support multiple CPUs going through OS_MCA
  [IA64] silence GCC ia64 unused variable warnings
  [IA64] prevent MCA when performing MMIO mmap to PCI config space
  [IA64] add sn_register_pmi_handler oemcall
  [IA64] Stop bit for brl instruction
  [IA64] SN: Correct ROM resource length for BIOS copy
  [IA64] Don't set psr.ic and psr.i simultaneously
2007-07-12 13:41:29 -07:00
Linus Torvalds 21ba0f88ae Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits)
  PCI: Only build PCI syscalls on architectures that want them
  PCI: limit pci_get_bus_and_slot to domain 0
  PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure
  PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge
  PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3
  PCI: hotplug: pciehp: wait for 1 second after power off slot
  PCI: pci_set_power_state(): check for PM capabilities earlier
  PCI: cpci_hotplug: Convert to use the kthread API
  PCI: add pci_try_set_mwi
  PCI: pcie: remove SPIN_LOCK_UNLOCKED
  PCI: ROUND_UP macro cleanup in drivers/pci
  PCI: remove pci_dac_dma_... APIs
  PCI: pci-x-pci-express-read-control-interfaces cleanups
  PCI: Fix typo in include/linux/pci.h
  PCI: pci_ids, remove double or more empty lines
  PCI: pci_ids, add atheros and 3com_2 vendors
  PCI: pci_ids, reorder some entries
  PCI: i386: traps, change VENDOR to DEVICE
  PCI: ATM: lanai, change VENDOR to DEVICE
  PCI: Change all drivers to use pci_device->revision
  ...
2007-07-12 13:40:57 -07:00
Zhang Rui 91a6902958 sysfs: add parameter "struct bin_attribute *" in .read/.write methods for sysfs binary attributes
Well, first of all, I don't want to change so many files either.

What I do:
Adding a new parameter "struct bin_attribute *" in the
.read/.write methods for the sysfs binary attributes.

In fact, only the four lines change in fs/sysfs/bin.c and
include/linux/sysfs.h do the real work.
But I have to update all the files that use binary attributes
to make them compatible with the new .read and .write methods.
I'm not sure if I missed any. :(

Why I do this:
For a sysfs attribute, we can get a pointer pointing to the
struct attribute in the .show/.store method,
while we can't do this for the binary attributes.
I don't know why this is different, but this does make it not
so handy to use the binary attributes as the regular ones.
So I think this patch is reasonable. :)

Who benefits from it:
The patch that exposes ACPI tables in sysfs
requires such an improvement.
All the table binary attributes share the same .read method.
Parameter "struct bin_attribute *" is used to get
the table signature and instance number which are used to
distinguish different ACPI table binary attributes.

Without this parameter, we need to offer different .read methods
for different ACPI table binary attributes.
This is impossible as there are various ACPI tables on different
platforms, and we don't know what they are until they are loaded.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:09:09 -07:00
Tejun Heo 7b595756ec sysfs: kill unnecessary attribute->owner
sysfs is now completely out of driver/module lifetime game.  After
deletion, a sysfs node doesn't access anything outside sysfs proper,
so there's no reason to hold onto the attribute owners.  Note that
often the wrong modules were accounted for as owners leading to
accessing removed modules.

This patch kills now unnecessary attribute->owner.  Note that with
this change, userland holding a sysfs node does not prevent the
backing module from being unloaded.

For more info regarding lifetime rule cleanup, please read the
following message.

  http://article.gmane.org/gmane.linux.kernel/510293

(tweaked by Greg to not delete the field just yet, to make it easier to
merge things properly.)

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:09:06 -07:00
Matthew Wilcox 36e235901f PCI: Only build PCI syscalls on architectures that want them
The PCI syscalls are built on every architecture except X86, but only
a few have ever hooked them up.  Use a new Kconfig symbol to save a
couple of kB on the architectures that have never used the syscalls.
Tested on x86 and ia64 only.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:13 -07:00
Randy Dunlap 5463d9f0f3 PCI: limit pci_get_bus_and_slot to domain 0
Limit pci_get_bus_and_slot() to domain (segment) 0 since domain is not
specified in the function call and defaulting to domain 0 is the only
reasonable thing to do (rather than returning a device from some other
unknown domain).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:13 -07:00
Gary Hade 0bbd6424c5 PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure
On some systems, the ACPI bus check event can reference a bridge that is
higher in the ACPI hierarchy than the bridge immediately above the
hotplug PCI slot into which an adapter was just inserted.  The current
'acpiphp' code expects the bus check event to reference the bridge
immediately above the slot that received the adapter so the hotplug
operation can fail on these systems with the message "acpiphp_glue:
cannot get bridge info".  This change fixes the problem by
re-enumerating all slots that lie below the bridge referenced by the bus
check event, including those slots that may be located under lower level
PCI-to-PCI bridge(s).

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: <lcm@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:13 -07:00
Gary Hade 9ef2241b18 PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge
acpiphp is writing hot plug parameters to the PCI host bridge
PCI config space.  This patch removes the incorrect operation.

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: <lcm@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:13 -07:00
Gary Hade bfceafc597 PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3
On systems where the optional _PS3 ACPI object is not implemented
acpiphp fails to power off the slot.  This is happening because the
current code does not attempt to remove power using the _EJ0 ACPI
object.  This patch restores the _EJ0 evaluation attempt which was
apparently inadvertently removed from the power-off sequence when the
_EJ0 evaluation code was relocated from power_off_slot() to
acpiphp_eject_slot().

Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Cc: <lcm@us.ibm.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:12 -07:00
Kenji Kaneshige 5b57a6cea4 PCI: hotplug: pciehp: wait for 1 second after power off slot
According to the specification, we must wait for at least 1 second
after turning power off before taking any action that relies on power
having been removed from the slot/adapter.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:12 -07:00
Andrew Lunn cca03dec2f PCI: pci_set_power_state(): check for PM capabilities earlier
Check for PCI_CAP_ID_PM before checking the device state.  Apparently fixes
some log spam via the 3c59x driver.

Signed-off-by: Andrew Lunn <andrew.lunn@ascom.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:12 -07:00
Scott Murray 0bec2c85bb PCI: cpci_hotplug: Convert to use the kthread API
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Scott Murray <scottm@somanetworks.com>
Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:11 -07:00
Randy Dunlap 694625c0b3 PCI: add pci_try_set_mwi
As suggested by Andrew, add pci_try_set_mwi(), which does not require
return-value checking.

- add pci_try_set_mwi() without __must_check
- make it return 0 on success, errno if the "try" failed or error
- review callers

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:11 -07:00
Milind Arun Choudhary f5609d7e67 PCI: pcie: remove SPIN_LOCK_UNLOCKED
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:11 -07:00
Milind Arun Choudhary 6f6f8c2f4b PCI: ROUND_UP macro cleanup in drivers/pci
ROUND_UP macro cleanup, use ALIGN where ever appropriate

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Acked-by: Scott Murray <scottm@somanetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:11 -07:00
Andrew Morton b7b095c154 PCI: pci-x-pci-express-read-control-interfaces cleanups
- remove unneeded local

- 80-col fix

Cc: Peter Oruba <peter.oruba@amd.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:11 -07:00
Auke Kok 44c10138fd PCI: Change all drivers to use pci_device->revision
Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:10 -07:00
Auke Kok b8a3a5214d PCI: read revision ID by default
Currently there are 97 occurrences where drivers need the pci
revision ID. We can do this once for all devices. Even the pci
subsystem needs the revision several times for quirks. The extra
u8 member pads out nicely in the pci_dev struct.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:09 -07:00
Adrian Bunk e57571a07d PCI: unexport pci_proc_attach_device
On Mon, Apr 02, 2007 at 10:47:45PM -0700, Andrew Morton wrote:
>...
> Changes since 2.6.21-rc5-mm3:
>...
> +fix-82875-pci-setup.patch
>...
>  Misc
>...


pci_proc_attach_device() no longer has any modular user.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:08 -07:00
Stephen Hemminger f0dce41193 PCI aer: add pci_cleanup_aer_correct_aer_status
Function to clear bogus correctable errors. Analog to pci_aer_uncorrect_are_status.
The Marvell chips seem to start out with a bogus value that needs to be
cleared.

Yanmin ported it to 2.6.22-rc4 by fixing a fuzz patch applying info.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Acked-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:08 -07:00
Zhang, Yanmin 8d29bfb79e PCI: fix AER driver error information
Below patch fixes aer driver error information and enables aer driver
although CONFIG_ACPI=n.

As a matter of fact, the new patch is created from below 2 patches plus
a minor patch apply fuzz fixing. Because the second patch fixed a compilation
error introduced by the first patch, I merge them to facilitate bisect.


1) http://marc.info/?l=linux-kernel&m=117783233918191&w=2;
2) http://marc.info/?l=linux-mm-commits&m=118046936720790&w=2


Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:08 -07:00
Kenji Kaneshige f477836457 PCI: hotplug: pciehp: Fix possible race condition in writing slot
The slot control register is modified as follows:

    (1) Read the register value
    (2) Change the value
    (3) Write the value to the register

Those must be done atomically, otherwise writing to control register
would cause an unexpected result.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:08 -07:00
Michael Ellerman a2cd52ca90 PCI: Make pcibios_add_platform_entries() return errors
Currently pcibios_add_platform_entries() returns void, but could fail,
so instead have it return an int and propagate errors up to
pci_create_sysfs_dev_files().

Fixes:
arch/powerpc/kernel/pci_64.c: In function 'pcibios_add_platform_entries':
arch/powerpc/kernel/pci_64.c:878: warning: ignoring return value of
	'device_create_file', declared with attribute warn_unused_result
arch/powerpc/kernel/pci_32.c: In function 'pcibios_add_platform_entries':
  arch/powerpc/kernel/pci_32.c:1043: warning: ignoring return value of
	'device_create_file', declared with attribute warn_unused_result

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:07 -07:00
Michael Ellerman 575e3348cb PCI: Use a weak symbol for the empty version of pcibios_add_platform_entries()
I'm not sure if this is going to fly, weak symbols work on the compilers I'm
using, but whether they work for all of the affected architectures I can't say.
I've cc'ed as many arch maintainers/lists as I could find.

But assuming they do, we can use a weak empty definition of
pcibios_add_platform_entries() to avoid having an empty definition on every
arch.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:07 -07:00
Peter Oruba d556ad4bbe PCI: add PCI-X/PCI-Express read control interfaces
This patch introduces an interface to read and write PCI-X / PCI-Express 
maximum read byte count values from PCI config space. There is a second 
function that returns the maximum _designed_ read byte count, which marks the 
maximum value for a device, since some drivers try to set MMRBC to the 
highest allowed value and rely on such a function.

Based on patch set by Stephen Hemminger <shemminger@linux-foundation.org>

Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Peter Oruba <peter.oruba@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:07 -07:00
Alan Cox e4585da22a pci syscall.c: Switch to refcounting API
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:07 -07:00
Greg Kroah-Hartman a23adb5b2d PCI: point people to Bernhard instead of the linux-kernel list
Back in commit 8c4b2cf9af, Bernhard said
that he would fix up all instances of when this message happens.  So
point people at him instead of the linux-kernel list which can not fix
things up.

Cc: Bernhard Kaindl <bk@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:06 -07:00
John Keller d7ad2254fa [IA64] SN: Correct ROM resource length for BIOS copy
On SN systems, when setting the IORESOURCE_ROM_BIOS_COPY resource flag,
the resource length should be set to the actual size of the ROM image
so that a call to pci_map_rom() returns the correct size.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-07-09 13:37:18 -07:00