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| author | Michael S. Tsirkin <mst@redhat.com> | 2011-12-01 12:41:36 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2011-12-04 16:00:17 +0200 |
| commit | 34f1bdee1910f7efe3c32e1a891dba4fd21cb3b6 (patch) | |
| tree | ff3b52d4ab12ae907117d8d1064fab94acbc11e3 /arch/mn10300 | |
| parent | 2ebf5d0d79087005e1042df2cd0f7594782746d8 (diff) | |
| download | linux-34f1bdee1910f7efe3c32e1a891dba4fd21cb3b6.tar.gz linux-34f1bdee1910f7efe3c32e1a891dba4fd21cb3b6.tar.bz2 linux-34f1bdee1910f7efe3c32e1a891dba4fd21cb3b6.zip | |
mn10300: switch to GENERIC_PCI_IOMAP
The pci_iomap variant that arch/mn10300/unit-asb2305/pci-iomap.c
uses differs from the generic one in that it does
not use ioremap_nocache for PCI addresses.
However, it turns out that PCI addresses are
automatically noncached, so switching to ioremap_nocache
and to the generic implementation is safe.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'arch/mn10300')
| -rw-r--r-- | arch/mn10300/Kconfig | 1 | ||||
| -rw-r--r-- | arch/mn10300/include/asm/io.h | 1 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2305/Makefile | 2 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2305/pci-iomap.c | 31 |
4 files changed, 2 insertions, 33 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 438db84a1f7c..8f1c40d5817e 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -252,6 +252,7 @@ config PCI bool "Use PCI" depends on MN10300_UNIT_ASB2305 default y + select GENERIC_PCI_IOMAP help Some systems (such as the ASB2305) have PCI onboard. If you have one of these boards and you wish to use the PCI facilities, say Y here. diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h index 0d6d54f09f17..139df8c53de8 100644 --- a/arch/mn10300/include/asm/io.h +++ b/arch/mn10300/include/asm/io.h @@ -229,7 +229,6 @@ static inline void outsl(unsigned long addr, const void *buffer, int count) /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) { } diff --git a/arch/mn10300/unit-asb2305/Makefile b/arch/mn10300/unit-asb2305/Makefile index 0551022225b3..cbc5abaa939a 100644 --- a/arch/mn10300/unit-asb2305/Makefile +++ b/arch/mn10300/unit-asb2305/Makefile @@ -5,4 +5,4 @@ ############################################################################### obj-y := unit-init.o leds.o -obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o pci-iomap.o +obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o diff --git a/arch/mn10300/unit-asb2305/pci-iomap.c b/arch/mn10300/unit-asb2305/pci-iomap.c deleted file mode 100644 index c1a8d8f941fd..000000000000 --- a/arch/mn10300/unit-asb2305/pci-iomap.c +++ /dev/null @@ -1,31 +0,0 @@ -/* ASB2305 PCI I/O mapping handler - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/pci.h> -#include <linux/module.h> - -/* - * Create a virtual mapping cookie for a PCI BAR (memory or IO) - */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - - if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM)) - return (void __iomem *) start; - - return NULL; -} -EXPORT_SYMBOL(pci_iomap); |