From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757481Ab3HMLMh (ORCPT ); Tue, 13 Aug 2013 07:12:37 -0400 Received: from mail-bk0-f41.google.com ([209.85.214.41]:34795 "EHLO mail-bk0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756804Ab3HMLMf (ORCPT ); Tue, 13 Aug 2013 07:12:35 -0400 From: Thierry Reding To: Russell King , Bjorn Helgaas Cc: Stephen Warren , Thomas Petazzoni , Jason Cooper , Sebastian Hesselbarth , linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Thierry Reding Subject: [RFC 0/3] ARM: Allow PCI host drivers to be unloaded Date: Tue, 13 Aug 2013 13:12:23 +0200 Message-Id: <1376392346-14127-1-git-send-email-treding@nvidia.com> X-Mailer: git-send-email 1.8.3.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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