diff options
author | Paul Mundt <lethal@linux-sh.org> | 2012-01-12 13:11:43 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2012-01-12 13:11:43 +0900 |
commit | b1bdd255661369cb6eb90b6e181169b5e6d0f9b6 (patch) | |
tree | 17d15f3a6dc5bdd6205070dbef0e339421b13d25 /lib/iomap.c | |
parent | 9d14070f656addddce3d63fd483de46930b51850 (diff) | |
parent | c1537b4863da620f12f5b42ece61bf65314148ed (diff) |
Merge branch 'sh/nommu' into sh-latest
Diffstat (limited to 'lib/iomap.c')
-rw-r--r-- | lib/iomap.c | 38 |
1 files changed, 2 insertions, 36 deletions
diff --git a/lib/iomap.c b/lib/iomap.c index 5dbcb4b2d86..ada922a808e 100644 --- a/lib/iomap.c +++ b/lib/iomap.c @@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap); #endif /* CONFIG_HAS_IOPORT */ #ifdef CONFIG_PCI -/** - * pci_iomap - create a virtual mapping cookie for a PCI BAR - * @dev: PCI device that owns the BAR - * @bar: BAR number - * @maxlen: length of the memory to map - * - * Using this function you will get a __iomem address to your device BAR. - * You can access it using ioread*() and iowrite*(). These functions hide - * the details if this is a MMIO or PIO address space and will just do what - * you expect from them in the correct way. - * - * @maxlen specifies the maximum length to map. If you want to get access to - * the complete BAR without checking for its length first, pass %0 here. - * */ -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) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - /* What? */ - return NULL; -} - +/* Hide the details if this is a MMIO or PIO address space and just do what + * you expect in the correct way. */ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { IO_COND(addr, /* nothing */, iounmap(addr)); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); #endif /* CONFIG_PCI */ |