From: Grant Grundler <grundler@parisc-linux.org>
To: Greg K-H <greg@kroah.com>
Cc: linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz,
rajesh.shah@intel.com
Subject: Re: [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add
Date: Wed, 29 Jun 2005 10:33:10 -0600 [thread overview]
Message-ID: <20050629163310.GA4753@colo.lackof.org> (raw)
In-Reply-To: <11199367721003@kroah.com>
On Mon, Jun 27, 2005 at 10:32:52PM -0700, Greg KH wrote:
> [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add
>
> 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.
PA-RISC must have been doing this before somehow.
All PARISC boxen with PAT PDC firmware (A500/N- and L-Class)
have to deal with unconfigured PCI Bus devices at boot time.
But I also have to confess I know PCI-PCI Bridge support is broken
on those boxes for the past year... /o\
(system will hard fail/crash if a PCI-PCI Bridge is installed)
Normal add-on PCI cards get configured properly AFAICT.
"Card-mode" Dino boxen also have to deal with unconfigured PCI devices.
Just PCI-PCI bridges are never below a card-mode Dino.
(Alternative is "built-in" dino - firmware initializes everything
in this case including PCI-PCI Bridges.)
> 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.
That's fine...I'll clean it up when I get into ottawa in July and have
reliable bandwidth. Thanks for the heads up.
grant
prev parent reply other threads:[~2005-06-29 16:29 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-28 5:30 [GIT PATCH] PCI patches for 2.6.12 Greg KH
2005-06-28 5:32 ` [PATCH] PCI Allow OutOfRange PIRQ table address Greg KH
2005-06-28 5:32 ` [PATCH] pci: remove deprecates Greg KH
2005-06-28 5:32 ` Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Make pcibios_fixup_bus() hot-plug safe Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Fix pci_enable_device() for p2p bridges Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Link newly created pci child bus to its parent on creation Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Prevent duplicate bus numbers when scanning PCI bridge Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Take the PCI lock when modifying pci bus or device lists Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Make the PCI remove routines safe for failed hot-plug Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Remove hot-plugged devices that could not be allocated resources Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Read bridge resources when fixing up the bus Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: clean up notify handlers on acpiphp unload Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Allow ACPI .add and .start operations to be done independently Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: convert acpiphp to use generic resource code Greg KH
2005-06-28 5:32 ` [PATCH] acpi bridge hotadd: Export the interface to get PCI id for an ACPI handle Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: fix slot power-down problem with acpiphp Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: decouple slot power state changes from physical hotplug Greg KH
2005-06-28 5:32 ` [PATCH] acpi hotplug: aCPI based root bridge hot-add Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: ia64 support Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: add interfaces Greg KH
2005-06-28 5:32 ` [PATCH] PCI: fix-pci-mmap-on-ppc-and-ppc64.patch Greg KH
2005-06-28 5:32 ` [PATCH] ACPI based I/O APIC hot-plug: acpiphp support Greg KH
2005-06-28 5:32 ` [PATCH] PCI: DMA bursting advice Greg KH
2005-06-28 5:32 ` [PATCH] cpqphp: fix oops during unload without probe Greg KH
2005-06-28 5:32 ` [PATCH] PCI: clean up the MSI code a bit Greg KH
2005-06-28 5:32 ` [PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=n Greg KH
2005-06-28 5:32 ` [PATCH] PCI: add proper MCFG table parsing to ACPI core Greg KH
2005-06-28 5:32 ` [PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback Greg KH
2005-06-28 5:32 ` [PATCH] PCI: use the MCFG table to properly access pci devices (i386) Greg KH
2005-06-28 5:32 ` [PATCH] PCI: use the MCFG table to properly access pci devices (x86-64) Greg KH
2005-06-29 16:33 ` Grant Grundler [this message]
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