diff options
Diffstat (limited to 'include/asm-arm/io.h')
| -rw-r--r-- | include/asm-arm/io.h | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h index 5f60b4220906..1d3caa42a386 100644 --- 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 @@ -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 |