Signed-off-by: NKristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch is the SGI hotplug driver and additional changes required for
the driver.  These modifications include changes to the SN io_init.c code
for memory management, the inclusion of new SAL calls to enable and disable
PCI slots, and a hotplug-style driver.
Signed-off-by: NPrarit Bhargava <prarit@sgi.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>

drivers/pci/hotplug/cpqphp_core.c calls cpqphp_event_start_thread()
in one_time_init(), which is called whenever the hardware is probed.
Unfortunately, cpqphp_event_stop_thread() is *always* called when
the module is unloaded. If the hardware is never probed, then
cpqphp_event_stop_thread() tries to manipulate a couple of
uninitialized mutexes.
Signed-off-by: NKeith Moore <keithmo@exmsft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch adds PCI based I/O xAPIC hot-add support to ACPIPHP
driver. When PCI root bridge is hot-added, all PCI based I/O xAPICs
under the root bridge are hot-added by this patch. Hot-remove support
is TBD.
Signed-off-by: NKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Current acpiphp code does not distinguish between the physical presence and
power state of a device/slot.  That is, if a device has to be disabled, it
also tries to physically ejects the device.  This patch decouples power state
from physical presence.  You can now echo to the corresponding sysfs power
control file to repeatedly enable and disable a device without having to
physically re-insert it.
Signed-off-by: NRajesh Shah <rajesh.shah@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

acpiphp changes to support acpi based root bridge hot-add.
Signed-off-by: NRajesh Shah <rajesh.shah@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Earlier I reported that Matthew's acpiphp rewrite had problem in powering down
slot on my i386 system.  The following patch is needed to get the acpiphp
rewrite properly powering down the slot.
Signed-off-by: NDely Sy <dely.l.sy@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

A root bridge may not have directly attached hotpluggable slots under it.
Instead, it may have p2p bridges with slots under it.  In this case, we need
to clean up the p2p bridges and slots properly too.  Patch below applies on
top of the original patch, and fixes this problem.  Without this, acpiphp
leaves behind notify handlers on module unload, and subsequent module load
attempts don't work properly too.  Patch was tested on an ia64 Tiger4 box.
Signed-off-by: NRajesh Shah <rajesh.shah@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch converts acpiphp to use the generic PCI resource assignment code.
It's quite large, but most of it is deleting the acpiphp_pci and acpiphp_res
files.  It's tested on an hp Integrity rx8620 (which won't work without this
patch).  Testers with other hardware welcomed.
Signed-off-by: NMatthew Wilcox <matthew@wil.cx>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

[PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks
Signed-off-by: NYani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

sysfs: fix drivers/pci so if an attribute does not implement
       show or store method read/write will return -EIO
       instead of 0.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Here's a patch that fixes up the pci_dev refcounting in the CPCI code.
I've done some testing against it and it seems fine here.
Signed-off-by: NScott Murray <scottm@somanetworks.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Here is my third attempt at a patch to further update the CompactPCI
hotplug driver infrastructure to address the pci_enable_device issue
discussed on the list as well as a few other issues I discovered during
some more testing.  This version addresses a few more issues pointed out
by Prarit Bhargava.  Changes include:
- cpci_enable_device and its recursive calling of pci_enable_device on
  new devices removed.
- Use list_rwsem to avoid slot status change races between disable_slot
  and check_slots.
- Fixed oopsing in cpci_hp_unregister_bus caused by calling list_del on
  a slot after calling pci_hp_deregister.
- Removed kfree calls in cleanup_slots since release_slot will have
  done it already.
- Reworked init_slots a bit to fix latch and adapter file updating on
  subsequent calls to cpci_hp_start.
- Improved sanity checking in cpci_hp_register_controller.
- Now shut things down correctly in cpci_hotplug_exit.
- Switch to pci_get_slot instead of deprecated pci_find_slot.
- A bunch of CodingStyle fixes.
Signed-off-by: NScott Murray <scottm@somanetworks.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Current shpchp driver doesn't seem to program command register to
enable PERR and SERR properly. The following patch fixes this issue.
Signed-off-by: NKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Current shpchp driver doesn't seem to program _HPP values
properly. The following patch fixes this issue.
Signed-off-by: NKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

[PATCH] CPCI: update

I have finally done some work to update the CompactPCI hotplug driver to
fix some of the outstanding issues in 2.6:
- Added adapter and latch status ops so that those files will get created
  by the current PCI hotplug core.  This used to not be required, but
  seems to be now after some of the sysfs rework in the core.
- Replaced slot list spinlock with a r/w semaphore to avoid any potential
  issues with sleeping.  This quiets all of the runtime warnings.
- Reworked interrupt driven hot extraction handling to remove need for a
  polling operator for ENUM# status.  There are a lot of boards that only
  have an interrupt driven by ENUM#, so this lowers the bar to entry.
- Replaced pci_visit_dev usage with better use of the PCI core functions.
  The new code is functionally equivalent to the previous code, but the
  use of pci_enable_device on insert needs to be investigated further, as
  I need to do some more testing to see if it is still necessary.
Signed-off-by: NScott Murray <scottm@somanetworks.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Here is the updated patch to get pciehp driver to work for downstream
port of a switch and handle the difference in the offset value of PCI
Express capability list item of different ports.
Signed-off-by: NDely Sy <dely.l.sy@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Here is a patch to fix the problem of echoing 1 to "power" file
to enabled slot causing the slot to power down, and echoing 0
to disabled slot causing shpchp_disabled_slot() to be called
twice. This problem was reported by kenji Kaneshige.

Thanks,
Dely
Signed-off-by: NDely Sy <dely.l.sy@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I fogot to remove the code that freed the memory in cleanup_slots().
Here is the new patch, which I have also taken care of the comment
by Eike to remove the cast in hotplug_slot->private.
Signed-off-by: NDely Sy <dely.l.sy@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Here are some spelling corrections for drivers/pci.

CONTROLER -> CONTROLLER
Regisetr -> Register
harware -> hardware
inital -> initial
Initilize -> Initialize
funtion -> function
funciton -> function
occured -> occurred
Signed-off-by: NSteven Cole <elenstev@mesatop.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

here is the patch that fixes the bug introduced by my previous patch which
already went into 2.6.12-rc2 and is likely to cause trouble is someone hits
one the else case here by accident.

Using the &= operation before the if statement destroys the information the
if asks for so we always go into the else branch.
Signed-off-by: NRolf Eike Beer <eike-hotplug@sf-tec.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fixes drivers/pci (mostly pcie stuff).
Signed-off-by: NPavel Machek <pavel@suse.cz>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!