A few minor changes to the way slot/device fixup is done.

No need to be calling sn_pci_controller_fixup(), as
a root bus cannot be hotplugged.
Signed-off-by: NJohn Keller <jpk@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This makes it possible to build pci hotplug drivers outside of the main
kernel tree, and Sam keeps telling me to move local header files to
their proper places...
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This is a repost of a patch submitted by Prarit Bhargava on 01-19-06 that
never got integrated.

The get_power_status function is currently reporting a bitwise mapping of
the slot if the slot is powered on.  It should return 1 if powered on and
0 if powered off.
Signed-off-by: NMike Habeck <habeck@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

SGI hotplug driver changes required to support Tollhouse system PCI
hotplug, and implements the PRF_HOTPLUG_SUPPORT feature bit.
Signed-off-by: NPrarit Bhargava <prarit@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jens Axboe <axboe@suse.de>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Acked-by: NAlasdair G Kergon <agk@redhat.com>
Cc: Greg KH <greg@kroah.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

When doing a hotplug removal of a PPB, sn_bus_store_sysdata()
needs to be called for the PPB and all of its children.
Acked-by: NPrarit Bhargava <prarit@sgi.com>
Signed-off-by: NJohn Keller <jpk@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch converts kcalloc(1, ...) calls to use the new kzalloc() function.
Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

These fixes were suggested by pcihpd-discuss, but were dropped in the
initial checkin of the code.  These fixes include cleaning up the
hotplug driver sysfs filename, and some minor code cleanups.  The driver
also requires at least PROM 4.30, not 4.20.
Signed-off-by: NPrarit Bhargava <prarit@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

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>