From: Bjorn Helgaas <bhelgaas@google.com>
To: linux-pci@vger.kernel.org
Cc: Daniel Yeisley <dan.yeisley@unisys.com>,
Yinghai Lu <yinghai@kernel.org>,
linux-kernel@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 0/3] PCI: P2P bridge window fixes
Date: Mon, 09 Jul 2012 14:31:58 -0600 [thread overview]
Message-ID: <20120709202308.28178.58942.stgit@bhelgaas.mtv.corp.google.com> (raw)
Two fixes here:
1) Zero is a legal P2P bridge window base and BAR value and is likely to
occur when there is an offset between bus addresses and CPU addresses.
Stop disallowing it.
2) The Intel-specific 1K I/O window granularity for P2P bridges was
implemented in a way that precluded reassignment of the window after
FINAL quirks. Fix that.
And also replace the sparc pci_cfg_fake_ranges() with the functionally
equivalent generic version.
---
Bjorn Helgaas (3):
PCI: allow P2P bridge windows starting at PCI bus address zero
PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2)
sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases()
arch/sparc/kernel/pci.c | 89 +---------------------------------------------
drivers/pci/probe.c | 31 +++++++++-------
drivers/pci/quirks.c | 39 +-------------------
drivers/pci/setup-bus.c | 11 +++++-
include/linux/pci.h | 1 +
include/linux/pci_regs.h | 3 +-
6 files changed, 31 insertions(+), 143 deletions(-)
--
Bjorn
next reply other threads:[~2012-07-09 20:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-09 20:31 Bjorn Helgaas [this message]
2012-07-09 20:32 ` [PATCH 1/3] PCI: allow P2P bridge windows starting at PCI bus address zero Bjorn Helgaas
2012-07-09 21:11 ` Yinghai Lu
2012-07-09 20:32 ` [PATCH 2/3] PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) Bjorn Helgaas
2012-07-09 21:43 ` Yinghai Lu
2012-07-09 22:21 ` Bjorn Helgaas
2012-07-09 23:50 ` Yinghai Lu
2012-07-09 20:32 ` [PATCH 3/3] sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() Bjorn Helgaas
2012-07-09 21:25 ` David Miller
2012-07-10 3:24 ` [PATCH 0/3] PCI: P2P bridge window fixes Bjorn Helgaas
2012-07-10 15:08 ` Bjorn Helgaas
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