linux-kernel - [RFC 0/3] ARM: Allow PCI host drivers to be unloaded

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Message-Id: <1376392346-14127-1-git-send-email-treding@nvidia.com>
Date:	Tue, 13 Aug 2013 13:12:23 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Russell King <linux@....linux.org.uk>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
	linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
	Thierry Reding <treding@...dia.com>
Subject: [RFC 0/3] ARM: Allow PCI host drivers to be unloaded

Hi,

This is a set of experimental patches that allow ARM PCI host drivers to
be unloaded. The first two patches enhance the ARM core PCI code with
functions to tear down fixed PCI I/O mappings and unregister a PCI host
bridge. The third patch uses the new functionality to allow the Tegra
PCIe driver to unbind from a device.

I'm sending this as an RFC because, while I've been able to successfully
unbind and rebind the Tegra PCIe driver and verifying that a NIC
connected via PCIe still works after each new probe, I haven't fully
investigated yet whether there may be memory leaks due to missing
cleanup.

Thierry

Thierry Reding (3):
  ARM: Allow unmapping of fixed PCI I/O mappings
  ARM: Introduce pci_common_exit()
  PCI: tegra: Support driver unbinding

 arch/arm/include/asm/io.h       |  1 +
 arch/arm/include/asm/mach/pci.h |  6 ++++++
 arch/arm/kernel/bios32.c        | 29 ++++++++++++++++++++++++++---
 arch/arm/mm/ioremap.c           |  6 ++++++
 drivers/pci/host/pci-tegra.c    | 37 ++++++++++++++++++++++++++++++++++++-
 5 files changed, 75 insertions(+), 4 deletions(-)

-- 
1.8.3.4

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