diff options
Diffstat (limited to 'arch/nios2/include/asm/page.h')
| -rw-r--r-- | arch/nios2/include/asm/page.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h index c1683f51ad0f..f1fbdc47bdaf 100644 --- a/arch/nios2/include/asm/page.h +++ b/arch/nios2/include/asm/page.h @@ -76,8 +76,6 @@ extern unsigned long memory_size; extern struct page *mem_map; -#endif /* !__ASSEMBLY__ */ - # define __pa(x) \ ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET) # define __va(x) \ @@ -87,8 +85,15 @@ extern struct page *mem_map; ((void *)(((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) # define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) -# define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && \ - (pfn) < max_mapnr) + +static inline bool pfn_valid(unsigned long pfn) +{ + /* avoid <linux/mm.h> include hell */ + extern unsigned long max_mapnr; + unsigned long pfn_offset = ARCH_PFN_OFFSET; + + return pfn >= pfn_offset && pfn < max_mapnr; +} # define virt_to_page(vaddr) pfn_to_page(PFN_DOWN(virt_to_phys(vaddr))) # define virt_addr_valid(vaddr) pfn_valid(PFN_DOWN(virt_to_phys(vaddr))) @@ -106,4 +111,6 @@ extern struct page *mem_map; #include <asm-generic/getorder.h> +#endif /* !__ASSEMBLY__ */ + #endif /* _ASM_NIOS2_PAGE_H */ |