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author | H. Peter Anvin <hpa@linux.intel.com> | 2013-01-29 14:59:09 -0800 |
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committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-01-29 15:10:15 -0800 |
commit | de65d816aa44f9ddd79861ae21d75010cc1fd003 (patch) | |
tree | 04a637a43b2e52a733d0dcb7595a47057571e7da /arch/mn10300/unit-asb2305/pci-iomap.c | |
parent | 9710f581bb4c35589ac046b0cfc0deb7f369fc85 (diff) | |
parent | 5dcd14ecd41ea2b3ae3295a9b30d98769d52165f (diff) | |
download | blackbird-op-linux-de65d816aa44f9ddd79861ae21d75010cc1fd003.tar.gz blackbird-op-linux-de65d816aa44f9ddd79861ae21d75010cc1fd003.zip |
Merge remote-tracking branch 'origin/x86/boot' into x86/mm2
Coming patches to x86/mm2 require the changes and advanced baseline in
x86/boot.
Resolved Conflicts:
arch/x86/kernel/setup.c
mm/nobootmem.c
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/mn10300/unit-asb2305/pci-iomap.c')
-rw-r--r-- | arch/mn10300/unit-asb2305/pci-iomap.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/mn10300/unit-asb2305/pci-iomap.c b/arch/mn10300/unit-asb2305/pci-iomap.c new file mode 100644 index 000000000000..bd65dae17f32 --- /dev/null +++ b/arch/mn10300/unit-asb2305/pci-iomap.c @@ -0,0 +1,35 @@ +/* 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)) { + if (flags & IORESOURCE_CACHEABLE && !(flags & IORESOURCE_IO)) + return ioremap(start, len); + else + return ioremap_nocache(start, len); + } + + return NULL; +} +EXPORT_SYMBOL(pci_iomap); |