From f2971c4c3197935f409bff202b9ab67416981dd7 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 24 Nov 2011 20:48:56 +0200 Subject: [PATCH] alpha: switch to GENERIC_PCI_IOMAP alpha copied pci_iomap from generic code to avoid pulling the rest of iomap.c in. Since that's in a separate file now, we can reuse the common implementation. The only difference is handling of nocache flag, that turns out to be done correctly by the generic code since arch/alpha/include/asm/io.h defines ioremap_nocache same as ioremap. Signed-off-by: Michael S. Tsirkin --- arch/alpha/Kconfig | 1 + arch/alpha/kernel/pci.c | 26 +------------------------- 2 files changed, 2 insertions(+), 25 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 3636b11ddff..56a4df952fb 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -315,6 +315,7 @@ config ISA_DMA_API config PCI bool depends on !ALPHA_JENSEN + select GENERIC_PCI_IOMAP default y help Find out whether you have a PCI motherboard. PCI is the name of a diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index c9ab94ee1ca..f3cae275d3f 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -508,30 +508,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) return -EOPNOTSUPP; } -/* Create an __iomem token from a PCI BAR. Copied from lib/iomap.c with - no changes, since we don't want the other things in that object file. */ - -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 (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - /* Not checking IORESOURCE_CACHEABLE because alpha does - not distinguish between ioremap and ioremap_nocache. */ - return ioremap(start, len); - } - return NULL; -} - -/* Destroy that token. Not copied from lib/iomap.c. */ +/* Destroy an __iomem token. Not copied from lib/iomap.c. */ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { @@ -539,7 +516,6 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) iounmap(addr); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); /* FIXME: Some boxes have multiple ISA bridges! */ -- 2.39.5