linux/drivers/pci
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
..
hotplug pciehp: don't enable slot unless forced 2008-03-17 19:26:05 -07:00
pcie Revert "PCI: PCIE ASPM support" 2008-02-02 11:32:01 -08:00
.gitignore Add some basic .gitignore files 2005-10-18 08:26:15 -07:00
access.c [PATCH] severing module.h->sched.h 2006-12-04 02:00:22 -05:00
bus.c PCI: fix issue with busses registering multiple times in sysfs 2008-03-13 10:21:09 -07:00
dmar.c copyright owner and author clean up for intel iommu and related files 2008-02-23 17:12:14 -08:00
hotplug-pci.c PCI: fix section mismatch warning in pci_scan_child_bus 2008-03-04 15:07:03 -08:00
hotplug.c Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
htirq.c PCI: Use pci_find_ht_capability() in drivers/pci/htirq.c 2006-12-20 10:54:42 -08:00
intel-iommu.c PCI: iova: lockdep false alarm fix 2008-03-24 22:38:44 -07:00
intel-iommu.h copyright owner and author clean up for intel iommu and related files 2008-02-23 17:12:14 -08:00
iova.c copyright owner and author clean up for intel iommu and related files 2008-02-23 17:12:14 -08:00
iova.h copyright owner and author clean up for intel iommu and related files 2008-02-23 17:12:14 -08:00
Kconfig PCI: Add Kconfig option to disable deprecated pci_find_* API 2007-11-05 13:35:17 -08:00
Makefile mn10300: add the MN10300/AM33 architecture to the kernel 2008-02-08 09:22:30 -08:00
msi.c PCI: drivers/pci/msi.c: move arch hooks to the top 2008-02-01 15:04:25 -08:00
msi.h PCI: Make some MSI-X #defines generic 2006-12-01 14:36:56 -08:00
pci-acpi.c ACPI: acpi_pci_set_power_state() cleanups 2008-02-23 01:29:34 -05:00
pci-driver.c PCI: Mem Policy: fix mempolicy usage in pci driver 2008-02-01 15:04:20 -08:00
pci-sysfs.c Revert "PCI: PCIE ASPM support" 2008-02-02 11:32:01 -08:00
pci.c PCI: revert "pcie: utilize pcie transaction pending bit" 2008-03-24 22:38:44 -07:00
pci.h PCI: make pci_bus a struct device 2008-02-01 15:04:31 -08:00
probe.c PCI: fix section mismatch warning in pci_scan_child_bus 2008-03-04 15:07:03 -08:00
proc.c PCI: Fix wrong reference counter check for proc_dir_entry 2008-02-21 15:34:39 -08:00
quirks.c PCI: consolidate duplicated MSI enable functions 2008-03-04 15:07:03 -08:00
remove.c Revert "PCI: PCIE ASPM support" 2008-02-02 11:32:01 -08:00
rom.c docbook: fix kernel-api source files 2008-03-03 10:47:14 -08:00
search.c PCI: Add Kconfig option to disable deprecated pci_find_* API 2007-11-05 13:35:17 -08:00
setup-bus.c Revert "PCI: remove transparent bridge sizing" 2008-03-26 11:22:40 -07:00
setup-irq.c kobjects: fix up improper use of the kobject name field 2007-10-12 14:51:02 -07:00
setup-res.c PCI: Fix warning in setup-res.c on 32-bit platforms with 64-bit resources 2008-02-01 15:04:25 -08:00
syscall.c PCI: remove unneeded lock_kernel() in drivers/pci/syscall.c. 2008-02-01 15:04:21 -08:00