From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 28 Feb 2006 17:04:20 +0000 (+0000)
Subject: [MIPS] Fix build error on processors that don's support copy-on-write.
X-Git-Tag: v2.6.16-rc6~157^2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=778e2ac5970e445f8c6b7d8aa597ac162afe270a;p=~emulex%2Finfiniband.git

[MIPS] Fix build error on processors that don's support copy-on-write.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/lib/iomap.c b/arch/mips/lib/iomap.c
index 7e2ced715cf..f4ac5bbcd81 100644
--- a/arch/mips/lib/iomap.c
+++ b/arch/mips/lib/iomap.c
@@ -63,7 +63,7 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 		return ioport_map(start, len);
 	if (flags & IORESOURCE_MEM) {
 		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap_cacheable_cow(start, len);
+			return ioremap_cachable(start, len);
 		return ioremap_nocache(start, len);
 	}
 
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index 5a4c8a54b8f..8c011aa61af 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -282,6 +282,24 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
 #define ioremap_nocache(offset, size)					\
 	__ioremap_mode((offset), (size), _CACHE_UNCACHED)
 
+/*
+ * ioremap_cachable -   map bus memory into CPU space
+ * @offset:         bus address of the memory
+ * @size:           size of the resource to map
+ *
+ * ioremap_nocache performs a platform specific sequence of operations to
+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
+ * writew/writel functions and the other mmio helpers. The returned
+ * address is not guaranteed to be usable directly as a virtual
+ * address.
+ *
+ * This version of ioremap ensures that the memory is marked cachable by
+ * the CPU.  Also enables full write-combining.  Useful for some
+ * memory-like regions on I/O busses.
+ */
+#define ioremap_cachable(offset, size)					\
+	__ioremap_mode((offset), (size), PAGE_CACHABLE_DEFAULT)
+
 /*
  * These two are MIPS specific ioremap variant.  ioremap_cacheable_cow
  * requests a cachable mapping, ioremap_uncached_accelerated requests a