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From: Deng-Cheng Zhu <dczhu@mips.com>
To: <bhelgaas@google.com>, <jbarnes@virtuousgeek.org>,
	<ralf@linux-mips.org>, <monstr@monstr.eu>,
	<benh@kernel.crashing.org>, <paulus@samba.org>,
	<davem@davemloft.net>, <tglx@linutronix.de>, <mingo@redhat.com>,
	<hpa@zytor.com>, <x86@kernel.org>
Cc: <linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-mips@linux-mips.org>, <eyal@mips.com>, <zenon@mips.com>,
	<dczhu@mips.com>, <dengcheng.zhu@gmail.com>
Subject: [RESEND PATCH v3 0/2] Pass resources to pci_create_bus() and fix MIPS PCI resources
Date: Thu, 1 Sep 2011 10:48:27 +0800	[thread overview]
Message-ID: <1314845309-3277-1-git-send-email-dczhu@mips.com> (raw)

(Resending the patch set to include more arch maintainers.)

Change the pci_create_bus() interface to pass in available resources to get them
settled down early. This is to avoid possible resource conflicts while doing
pci_scan_slot() in pci_scan_child_bus(). Note that pcibios_fixup_bus() can get
rid of such conflicts, but it's done AFTER scanning slots.

In addition, MIPS PCI resources are now fixed using this new interface.

-- Changes --
v3 - v2:
o Do not do fixups for root buses in pcibios_fixup_bus().
o Skip bus creation when bus resources cannot be allocated.
o PCI domain/bus numbers added to the error info in controller_resources().

v2 - v1:
o Merge [PATCH 1/3] to [PATCH 3/3], so now 2 patches in total.
o Add more info to patch description.
o Fix arch breaks in default resource setup discovered by Bjorn Helgaas.

Deng-Cheng Zhu (2):
  PCI: Pass available resources into pci_create_bus()
  MIPS: PCI: Pass controller's resources to pci_create_bus() in
    pcibios_scanbus()

 arch/microblaze/pci/pci-common.c |    3 +-
 arch/mips/pci/pci.c              |   61 +++++++++++++++++++++++++++++++++-----
 arch/powerpc/kernel/pci-common.c |    3 +-
 arch/sparc/kernel/pci.c          |    3 +-
 arch/x86/pci/acpi.c              |    2 +-
 drivers/pci/probe.c              |   15 +++++++--
 include/linux/pci.h              |    3 +-
 7 files changed, 73 insertions(+), 17 deletions(-)


             reply	other threads:[~2011-09-01  2:57 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-01  2:48 Deng-Cheng Zhu [this message]
2011-09-01  2:48 ` [RESEND PATCH v3 1/2] PCI: Pass available resources into pci_create_bus() Deng-Cheng Zhu
2011-09-01  2:48 ` [RESEND PATCH v3 2/2] MIPS: PCI: Pass controller's resources to pci_create_bus() in pcibios_scanbus() Deng-Cheng Zhu
2011-10-07 21:50 ` [RESEND PATCH v3 0/2] Pass resources to pci_create_bus() and fix MIPS PCI resources Bjorn Helgaas
2011-10-10 21:04   ` Bjorn Helgaas
2011-10-10 23:49     ` Zhu, DengCheng
2011-10-11  7:48       ` Benjamin Herrenschmidt
2011-10-11 16:15         ` Bjorn Helgaas
2011-11-02 21:14           ` Jesse Barnes
2011-11-02 21:37             ` Bjorn Helgaas

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