Merge branch 'linus' into x86/step

[pandora-kernel.git] / include / asm-arm / io.h

diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index 5f60b42..eebe56e 100644 (file)
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -56,13 +56,22 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 
 /*
  * Architecture ioremap implementation.
- *
- * __ioremap takes CPU physical address.
- *
- * __ioremap_pfn takes a Page Frame Number and an offset into that page
  */
-extern void __iomem * __ioremap_pfn(unsigned long, unsigned long, size_t, unsigned long);
-extern void __iomem * __ioremap(unsigned long, size_t, unsigned long);
+#define MT_DEVICE              0
+#define MT_DEVICE_NONSHARED    1
+#define MT_DEVICE_CACHED       2
+#define MT_DEVICE_IXP2000      3
+/*
+ * types 4 onwards can be found in asm/mach/map.h and are undefined
+ * for ioremap
+ */
+
+/*
+ * __arm_ioremap takes CPU physical address.
+ * __arm_ioremap_pfn takes a Page Frame Number and an offset into that page
+ */
+extern void __iomem * __arm_ioremap_pfn(unsigned long, unsigned long, size_t, unsigned int);
+extern void __iomem * __arm_ioremap(unsigned long, size_t, unsigned int);
 extern void __iounmap(volatile void __iomem *addr);
 
 /*
@@ -203,14 +212,14 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
  *
  */
 #ifndef __arch_ioremap
-#define ioremap(cookie,size)           __ioremap(cookie,size,0)
-#define ioremap_nocache(cookie,size)   __ioremap(cookie,size,0)
-#define ioremap_cached(cookie,size)    __ioremap(cookie,size,L_PTE_CACHEABLE)
+#define ioremap(cookie,size)           __arm_ioremap(cookie, size, MT_DEVICE)
+#define ioremap_nocache(cookie,size)   __arm_ioremap(cookie, size, MT_DEVICE)
+#define ioremap_cached(cookie,size)    __arm_ioremap(cookie, size, MT_DEVICE_CACHED)
 #define iounmap(cookie)                        __iounmap(cookie)
 #else
-#define ioremap(cookie,size)           __arch_ioremap((cookie),(size),0)
-#define ioremap_nocache(cookie,size)   __arch_ioremap((cookie),(size),0)
-#define ioremap_cached(cookie,size)    __arch_ioremap((cookie),(size),L_PTE_CACHEABLE)
+#define ioremap(cookie,size)           __arch_ioremap((cookie), (size), MT_DEVICE)
+#define ioremap_nocache(cookie,size)   __arch_ioremap((cookie), (size), MT_DEVICE)
+#define ioremap_cached(cookie,size)    __arch_ioremap((cookie), (size), MT_DEVICE_CACHED)
 #define iounmap(cookie)                        __arch_iounmap(cookie)
 #endif
 
@@ -219,12 +228,12 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
  */
 #ifndef ioread8
 #define ioread8(p)     ({ unsigned int __v = __raw_readb(p); __v; })
-#define ioread16(p)    ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; })
-#define ioread32(p)    ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; })
+#define ioread16(p)    ({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __v; })
+#define ioread32(p)    ({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __v; })
 
 #define iowrite8(v,p)  __raw_writeb(v, p)
-#define iowrite16(v,p) __raw_writew(cpu_to_le16(v), p)
-#define iowrite32(v,p) __raw_writel(cpu_to_le32(v), p)
+#define iowrite16(v,p) __raw_writew((__force __u16)cpu_to_le16(v), p)
+#define iowrite32(v,p) __raw_writel((__force __u32)cpu_to_le32(v), p)
 
 #define ioread8_rep(p,d,c)     __raw_readsb(p,d,c)
 #define ioread16_rep(p,d,c)    __raw_readsw(p,d,c)
@@ -250,9 +259,11 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 #define BIOVEC_MERGEABLE(vec1, vec2)   \
        ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 
+#ifdef CONFIG_MMU
 #define ARCH_HAS_VALID_PHYS_ADDR_RANGE
 extern int valid_phys_addr_range(unsigned long addr, size_t size);
 extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+#endif
 
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem