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* Ignore disabled ROM resources at setupLinus Torvalds2005-08-261-1/+3
| | | | | | | | | | | | | | | | Writing even a disabled value seems to mess up some matrox graphics cards. It may be a card-related issue, but we may also be writing reserved low bits in the result. This was a fall-out of switching x86 over to the generic PCI resource allocation code, and needs more debugging. In particular, the old x86 code defaulted to not doing any resource allocations at all for ROM resources. In the meantime, this has been reported to make X happier by Helge Hafting <helgehaf@aitel.hist.no>. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Only pre-allocate 256 bytes of cardbio IO rangeLinus Torvalds2005-08-261-1/+1
| | | | | | | | It may seem small, but most cards need much less, if any, and this not only makes the code adhere to the comment, it seems to fix a boot-time lockup on a ThinkPad 380XD laptop reported by Tero Roponen <teanropo@cc.jyu.fi> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI Hotplug: new contact infoKristen Accardi2005-08-1720-20/+20
| | | | | | Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: fix quirk-6700-fix.patchAndrew Morton2005-08-171-0/+6
| | | | | | | | | drivers/built-in.o(.text+0x32c3): In function `quirk_pcie_pxh': /usr/src/25/drivers/pci/quirks.c:1312: undefined reference to `disable_msi_mode' Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: 6700/6702PXH quirkKristen Accardi2005-08-173-2/+26
| | | | | | | | | | | | | On the 6700/6702 PXH part, a MSI may get corrupted if an ACPI hotplug driver and SHPC driver in MSI mode are used together. This patch will prevent MSI from being enabled for the SHPC as part of an early pci quirk, as well as on any pci device which sets the no_msi bit. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Revert "[PATCH] PCI: restore BAR values..."Linus Torvalds2005-08-092-56/+5Star
| | | | | | | Revert commit fec59a711eef002d4ef9eb8de09dd0a26986eb77, which is breaking sparc64 that doesn't have a working pci_update_resource. We'll re-do this after 2.6.13 when we'll do it all properly.
* [PATCH] VIA VT8235 PCI quirkIvan Kokshaysky2005-08-081-0/+19
| | | | | | | | | | | | | Like many other southbridges from different manufacturers, VIA VT8235 chip has two non-standard BARs for power management and SMBus registers (see the datasheet at http://www.via.com.tw). This new quirk routine fixes boot problem with 2.6.13-rc2/rc6 kernels on Targa Visionary 811 Athlon64 laptop, as reported by Mikael Pettersson <mikpe@csd.uu.se>. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix restore of 64-bit PCI BAR'sIvan Kokshaysky2005-08-071-1/+6
| | | | | | | | | | | | | | For 64-bit BAR[i] only pci_dev->resource[i] is valid, ->resource[i+1] slot is unused and contains zeroes in all fields. So when we update a PCI BAR, all we need is just to check that we're going to update a _valid_ resource. Also make sure to write high bits - use "x >> 16 >> 16" (rather than the simpler ">> 32") to avoid warnings on 32-bit architectures where we're not going to have any high bits. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: restore BAR values after D3hot->D0 for devices that need itJohn W. Linville2005-08-052-5/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some PCI devices (e.g. 3c905B, 3c556B) lose all configuration (including BARs) when transitioning from D3hot->D0. This leaves such a device in an inaccessible state. The patch below causes the BARs to be restored when enabling such a device, so that its driver will be able to access it. The patch also adds pci_restore_bars as a new global symbol, and adds a correpsonding EXPORT_SYMBOL_GPL for that. Some firmware (e.g. Thinkpad T21) leaves devices in D3hot after a (re)boot. Most drivers call pci_enable_device very early, so devices left in D3hot that lose configuration during the D3hot->D0 transition will be inaccessible to their drivers. Drivers could be modified to account for this, but it would be difficult to know which drivers need modification. This is especially true since often many devices are covered by the same driver. It likely would be necessary to replicate code across dozens of drivers. The patch below should trigger only when transitioning from D3hot->D0 (or at boot), and only for devices that have the "no soft reset" bit cleared in the PM control register. I believe it is safe to include this patch as part of the PCI infrastructure. The cleanest implementation of pci_restore_bars was to call pci_update_resource. Unfortunately, that does not currently exist for the sparc64 architecture. The patch below includes a null implemenation of pci_update_resource for sparc64. Some have expressed interest in making general use of the the pci_restore_bars function, so that has been exported to GPL licensed modules. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* pci: make bus resource start address override minimum IO addressLinus Torvalds2005-08-021-1/+3
| | | | | | | | | | | | | | The reason we have PCIBIOS_MIN_IO and PCIBIOS_MIN_CARDBUS_IO is because we want to protect badly documented motherboard PCI resources and thus don't want to allocate new resources in low IO/MEM space. However, if we have already discovered a PCI bridge with a specified resource base, that should override that decision. This change will allow us to move the "careful" region upwards without resulting in problems allocating resources in low mappings. This was brought on by us having allocated a bus resource at 0x1000, conflicting with a undocumented VAIO Sony PI resources.
* [PATCH] PCI: remove PCI_BRIDGE_CTL_VGA handling from setup-bus.cIvan Kokshaysky2005-07-292-13/+1Star
| | | | | | | | | | | | | | | | | | The setup-bus code doesn't work correctly for configurations with more than one display adapter in the same PCI domain. This stuff actually is a leftover of an early 2.4 PCI setup code and apparently it stopped working after some "bridge_ctl" changes. So the best thing we can do is just to remove it and rely on the fact that any firmware *has* to configure VGA port forwarding for the boot display device properly. But then we need to ensure that the bus->bridge_ctl will always contain valid information collected at the probe time, therefore the following change in pci_scan_bridge() is needed. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: Adjust PCI rom code to handle more broken ROMsJon Smirl2005-07-291-1/+3
| | | | | | | | | | | There are ROMs reporting that their size exceeds their PCI ROM resource window. This patch returns the minimum of the resource window size or the size in the ROM. An example of this breakage is the XGI Volari Z7. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: Hidden SMBus bridge on Toshiba Tecra M2Daniele Gaffuri2005-07-291-0/+5
| | | | | | | | | Patch against 2.6.12 to unhide SMBus on Toshiba Centrino laptops using Intel 82855PM chipset. Tested on Toshiba Tecra M2. Signed-off-by: Daniele Gaffuri <d.gaffuri@reply.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...Len Brown2005-07-123-6/+130
|\ | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * cleanup: remove unnecessary initializer on static pointersGreg Kroah-Hartman2005-07-121-2/+2
| | | | | | | | | | Suggested-by: Greg KH <greg@kroah.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * [ACPI] gut acpi_pci_choose_state() to avoid conflictLen Brown2005-07-121-13/+2Star
| | | | | | | | | | | | with pending pm_message_t re-definition. Signed-off-by: Len Brown <len.brown@intel.com>
| * [ACPI] pci_set_power_state() now callsDavid Shaohua Li2005-07-123-2/+29
| | | | | | | | | | | | | | | | | | | | platform_pci_set_power_state() and ACPI can answer http://bugzilla.kernel.org/show_bug.cgi?id=4277 Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * [ACPI] PCI can now get suspend state from firmwareDavid Shaohua Li2005-07-123-2/+59
| | | | | | | | | | | | | | | | | | | | | | pci_choose_state() can now call platform_pci_choose_state() and ACPI can answer http://bugzilla.kernel.org/show_bug.cgi?id=4277 Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * [ACPI] Bind ACPI and PCI devicesDavid Shaohua Li2005-07-121-3/+54
| | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=4277 Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | [PATCH] pm: more u32 vs. pm_message_t fixesPavel Machek2005-07-081-3/+3
| | | | | | | | | | | | | | | | Few more u32 vs. pm_message_t fixes. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds2005-07-074-2/+616
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| * \ Auto merge with /home/aegl/GIT/linusTony Luck2005-07-0710-138/+188
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| * | | [IA64] hotplug/ia64: SN Hotplug Driver - SN Hotplug Driver codePrarit Bhargava2005-07-073-2/+615
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] hotplug/ia64: SN Hotplug Driver - pci_find_next_bus exportPrarit Bhargava2005-07-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pci_find_next_bus function is listed as being exported to drivers. It is not EXPORT_SYMBOL'd. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | [PATCH] yet another fix for setup-bus.c/x86 mergeIvan Kokshaysky2005-07-071-0/+1
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a slight disagreement between setup-bus.c code and traditional x86 PCI setup wrt which recourses are invalid vs resources that are free for further allocations. In particular, in the setup-bus.c, if we failed to allocate some resource, we nullify "start" and "flags" fields, but *not* the "end" one. But x86 pcibios_enable_resources() does the following check: if (!r->start && r->end) { printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev)); return -EINVAL; which means that the device owning the offending resource cannot be enabled. In particular, this breaks cardbus behind the normal decode p2p bridge - the cardbus code from setup-bus.c requests rather large IO and MEM windows, and if it fails, the socket is completely unavailable. Which is wrong, as the yenta code is capable to allocate smaller windows. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] PCI: fix !CONFIG_HOTPLUG pci build problemGreg KH2005-07-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Here's a patch to fix the build issue when CONFIG_HOTPLUG is not enabled in 2.6.13-rc2. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gregkh-pci-pci-assign-unassigned-resources fixAndy Whitcroft2005-07-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems that X86 architectures in general need the setup-bus.o not just those with HOTPLUG. This avoids the following error on X86_NUMAQ and x86_64: arch/i386/pci/built-in.o(.init.text+0x15a6): In function `pcibios_init': : undefined reference to `pci_assign_unassigned_resources' Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] pci: cleanup argument comments for pci_{save,restore}_stateJohn W. Linville2005-07-011-6/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | The buffer arguments have been removed from pci_{save,restore}_state. The comment blocks for those functions should reflect that. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: Remove newline from pci MODALIAS variableHannes Reinecke2005-07-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | the pci core sends out a hotplug event variable MODALIAS with a trailing newline. This is inconsistent with all other event variables and breaks some hotplug tools. This patch removes the said newline. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: acpi tg3 ethernet not coming back properly after S3 suspendon ↵long2005-07-013-1/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DellM70 This patch, is based on kernel 2.6.12, provides a fix for PCIe port bus driver suspend/resume. Signed-off-by: T. Long Nguyen <tom.l.nguyen@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: Add PCI quirk for SMBus on the Asus P4B-LXJean Delvare2005-07-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | One more Asus motherboard requiring the SMBus quirk (P4B-LX). Original patch from Salah Coronya. Signed-off-by: Salah Coronya <salahx@yahoo.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: clean up dynamic pci id logicGreg Kroah-Hartman2005-07-011-125/+71Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dynamic pci id logic has been bothering me for a while, and now that I started to look into how to move some of this to the driver core, I thought it was time to clean it all up. It ends up making the code smaller, and easier to follow, and fixes a few bugs at the same time (dynamic ids were not being matched everywhere, and so could be missed on some call paths for new devices, semaphore not needed to be grabbed when adding a new id and calling the driver core, etc.) I also renamed the function pci_match_device() to pci_match_id() as that's what it really does. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: pci_assign_unassigned_resources() on x86Ivan Kokshaysky2005-07-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add sanity check for io[port,mem]_resource in setup-bus.c. These resources look like "free" as they have no parents, but obviously we must not touch them. - In i386.c:pci_allocate_bus_resources(), if a bridge resource cannot be allocated for some reason, then clear its flags. This prevents any child allocations in this range, so the setup-bus code will work with a clean resource sub-tree. - i386.c:pcibios_enable_resources() doesn't enable bridges, as it checks only resources 0-5, which looks like a clear bug to me. I suspect it might break hotplug as well in some cases. From: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: handle subtractive decode pci-pci bridge betterIvan Kokshaysky2005-07-011-3/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the number of PCI bus resources increased to 8, we can handle the subtractive decode PCI-PCI bridge like a normal bridge, taking into account standard PCI-PCI bridge windows (resources 0-2). This helps to avoid problems with peer-to-peer DMA behind such bridges, poor performance for MMIO ranges outside bridge windows and prefetchable vs. non-prefetchable memory issues. To reflect the fact that such bridges do forward all addresses to the secondary bus (transparency), remaining bus resources 3-7 are linked to resources 0-4 of the primary bus. These resources will be used as fallback by resource management code if allocation from standard bridge windows fails for some reason. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] PCI: Fix up PCI routing in parent bridgeGreg Kroah-Hartman2005-07-011-1/+18
|/ / | | | | | | | | | | | | | | | | When the cardbus bridge is behind another bridge change the routing in the parent bridge for new cards. This fixes Cardbus on various AMD64 laptops. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] cpqphp: fix oops during unload without probeKeith Moore2005-06-281-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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: Keith Moore <keithmo@exmsft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] PCI: clean up the MSI code a bit.Greg Kroah-Hartman2005-06-282-60/+37Star
| | | | | | | | | | | | | | Mostly just cleans up the irq handling logic to be smaller and a bit more descriptive as to what it really does. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] PCI: fix-pci-mmap-on-ppc-and-ppc64.patchMichael Ellerman2005-06-282-9/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an updated version of Ben's fix-pci-mmap-on-ppc-and-ppc64.patch which is in 2.6.12-rc4-mm1. It fixes the patch to work on PPC iSeries, removes some debug printks at Ben's request, and incorporates your fix-pci-mmap-on-ppc-and-ppc64-fix.patch also. Originally from Benjamin Herrenschmidt <benh@kernel.crashing.org> This patch was discussed at length on linux-pci and so far, the last iteration of it didn't raise any comment. It's effect is a nop on architecture that don't define the new pci_resource_to_user() callback anyway. It allows architecture like ppc who put weird things inside of PCI resource structures to convert to some different value for user visible ones. It also fixes mmap'ing of IO space on those archs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] ACPI based I/O APIC hot-plug: acpiphp supportKenji Kaneshige2005-06-281-0/+127
| | | | | | | | | | | | | | | | | | | | | | 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: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi hotplug: decouple slot power state changes from physical hotplugRajesh Shah2005-06-281-31/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi hotplug: aCPI based root bridge hot-addRajesh Shah2005-06-281-9/+202
| | | | | | | | | | | | | | | | acpiphp changes to support acpi based root bridge hot-add. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi hotplug: fix slot power-down problem with acpiphpRajesh Shah2005-06-281-2/+2
| | | | | | | | | | | | | | | | | | | | 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: Dely Sy <dely.l.sy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi hotplug: clean up notify handlers on acpiphp unloadRajesh Shah2005-06-281-8/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi hotplug: convert acpiphp to use generic resource codeRajesh Shah2005-06-286-1530/+134Star
| | | | | | | | | | | | | | | | | | | | | | 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: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: Remove hot-plugged devices that could not be ↵Rajesh Shah2005-06-281-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | allocated resources When hot-plugging an I/O hierarchy that contains many bridges and leaf devices, it's possible that there are not enough resources to start all the device present. If we fail to assign a resource, clear the corresponding value in the pci_dev structure, so other code can take corrective action. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: Make the PCI remove routines safe for failed ↵Rajesh Shah2005-06-281-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | hot-plug When a root bridge hierarchy is hot-plugged, resource requirements for the new devices may be greater than what the root bridge is decoding. In this case, we want to remove devices that did not get needed resources. These devices have been scanned into bus specific lists but not yet added to the global device list. Make sure the pci remove functions can handle this case. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: Link newly created pci child bus to its parent ↵Rajesh Shah2005-06-282-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | on creation When a pci child bus is created, add it to the parent's children list immediately rather than waiting till pci_bus_add_devices(). For hot-plug bridges/devices, pci_bus_add_devices() may be called much later, after they have been properly configured. In the meantime, this allows us to use the normal pci bus search functions for the hot-plug bridges/buses. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: Take the PCI lock when modifying pci bus or ↵Rajesh Shah2005-06-281-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | device lists With root bridge and pci bridge hot-plug, new buses and devices can be added or removed at run time. Protect the pci bus and device lists with the pci lock when doing so. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: Prevent duplicate bus numbers when scanning PCI ↵Rajesh Shah2005-06-281-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | bridge When hot-plugging a root bridge, as we try to assign bus numbers we may find that the hotplugged hieratchy has more PCI to PCI bridges (i.e. bus requirements) than available. Make sure we don't step over an existing bus when that happens. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] acpi bridge hotadd: ACPI based root bridge hot-addRajesh Shah2005-06-281-2/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When you hot-plug a (root) bridge hierarchy, it may have p2p bridges and devices attached to it that have not been configured by firmware. In this case, we need to configure the devices before starting them. This patch separates device start from device scan so that we can introduce the configuration step in the middle. I kept the existing semantics for pci_scan_bus() since there are a huge number of callers to that function. Also, I have no way of testing the changes I made to the parisc files, so this needs review by those folks. Sorry for the massive cross-post, this touches files in many different places. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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