From 5ca24814247fa4c039b893bf80fc05d0e5d41b00 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer <eike-kernel@sf-tec.de> Date: Thu, 19 Jul 2007 17:48:44 -0700 Subject: PCI: Document pci_iomap() This useful interface is hardly mentioned anywhere in the in-tree documentation. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Tejun Heo <htejun@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- include/asm-i386/io.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-i386/io.h b/include/asm-i386/io.h index 7b65b5b..e8e0bd6 100644 --- a/include/asm-i386/io.h +++ b/include/asm-i386/io.h @@ -112,6 +112,9 @@ extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsign * writew/writel functions and the other mmio helpers. The returned * address is not guaranteed to be usable directly as a virtual * address. + * + * If the area you are trying to map is a PCI BAR you should have a + * look at pci_iomap(). */ static inline void __iomem * ioremap(unsigned long offset, unsigned long size) -- cgit v1.1