aboutsummaryrefslogtreecommitdiff
path: root/include/asm-mips
diff options
context:
space:
mode:
authorKumar Gala <galak@kernel.crashing.org>2006-03-20 10:53:56 -0600
committerKumar Gala <galak@kernel.crashing.org>2006-03-20 10:53:56 -0600
commit61c5504a0ed66c8b460f9a006eedaea2ee587e33 (patch)
tree2cf21d235f17e80d47fdb4ee1248865be8196d4d /include/asm-mips
parent9585da3729e7e27bf22818625c10ac6c64ebb609 (diff)
parent2c276603c3e5ebf38155a9d1fbbda656d52d138e (diff)
Merge branch 'master'
Diffstat (limited to 'include/asm-mips')
-rw-r--r--include/asm-mips/io.h18
-rw-r--r--include/asm-mips/vga.h3
2 files changed, 21 insertions, 0 deletions
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
@@ -283,6 +283,24 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long 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
* mapping using the uncached accelerated mode which isn't supported on
diff --git a/include/asm-mips/vga.h b/include/asm-mips/vga.h
index ca5cec97e16..34755c0a639 100644
--- a/include/asm-mips/vga.h
+++ b/include/asm-mips/vga.h
@@ -26,6 +26,9 @@
* <linux/vt_buffer.h> has already done the right job for us.
*/
+#undef scr_writew
+#undef scr_readw
+
static inline void scr_writew(u16 val, volatile u16 *addr)
{
*addr = cpu_to_le16(val);