e1000: Add device IDs of blade version of the 82571 quad port
[pv_ops_mirror.git] / include / asm-cris / page.h
blob0648e3153f81f2d1f49d8633d5b72d59aa3ba117
1 #ifndef _CRIS_PAGE_H
2 #define _CRIS_PAGE_H
4 #ifdef __KERNEL__
6 #include <asm/arch/page.h>
8 /* PAGE_SHIFT determines the page size */
9 #define PAGE_SHIFT 13
10 #ifndef __ASSEMBLY__
11 #define PAGE_SIZE (1UL << PAGE_SHIFT)
12 #else
13 #define PAGE_SIZE (1 << PAGE_SHIFT)
14 #endif
15 #define PAGE_MASK (~(PAGE_SIZE-1))
17 #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
18 #define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
20 #define clear_user_page(page, vaddr, pg) clear_page(page)
21 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
23 #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
24 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
25 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
28 * These are used to make use of C type-checking..
30 #ifndef __ASSEMBLY__
31 typedef struct { unsigned long pte; } pte_t;
32 typedef struct { unsigned long pgd; } pgd_t;
33 typedef struct { unsigned long pgprot; } pgprot_t;
34 #endif
36 #define pte_val(x) ((x).pte)
37 #define pgd_val(x) ((x).pgd)
38 #define pgprot_val(x) ((x).pgprot)
40 #define __pte(x) ((pte_t) { (x) } )
41 #define __pgd(x) ((pgd_t) { (x) } )
42 #define __pgprot(x) ((pgprot_t) { (x) } )
44 /* On CRIS the PFN numbers doesn't start at 0 so we have to compensate */
45 /* for that before indexing into the page table starting at mem_map */
46 #define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
47 #define pfn_valid(pfn) (((pfn) - (PAGE_OFFSET >> PAGE_SHIFT)) < max_mapnr)
49 /* to index into the page map. our pages all start at physical addr PAGE_OFFSET so
50 * we can let the map start there. notice that we subtract PAGE_OFFSET because
51 * we start our mem_map there - in other ports they map mem_map physically and
52 * use __pa instead. in our system both the physical and virtual address of DRAM
53 * is too high to let mem_map start at 0, so we do it this way instead (similar
54 * to arm and m68k I think)
55 */
57 #define virt_to_page(kaddr) (mem_map + (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT))
58 #define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
59 #define virt_addr_valid(kaddr) pfn_valid((unsigned)(kaddr) >> PAGE_SHIFT)
61 /* convert a page (based on mem_map and forward) to a physical address
62 * do this by figuring out the virtual address and then use __pa
65 #define page_to_phys(page) __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
67 /* to align the pointer to the (next) page boundary */
68 #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
70 #ifndef __ASSEMBLY__
72 #endif /* __ASSEMBLY__ */
74 #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
75 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
77 #include <asm-generic/memory_model.h>
78 #include <asm-generic/page.h>
80 #endif /* __KERNEL__ */
82 #endif /* _CRIS_PAGE_H */