Go to the documentation of this file.
5 #ifndef _CRIS_PGTABLE_H
6 #define _CRIS_PGTABLE_H
12 #include <linux/sched.h>
15 #include <arch/pgtable.h>
36 #define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
37 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
43 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
44 #define set_pgu(pudptr, pudval) (*(pudptr) = pudval)
51 #define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-2))
52 #define PGDIR_SIZE (1UL << PGDIR_SHIFT)
53 #define PGDIR_MASK (~(PGDIR_SIZE-1))
61 #define PTRS_PER_PTE (1UL << (PAGE_SHIFT-2))
62 #define PTRS_PER_PGD (1UL << (PAGE_SHIFT-2))
69 #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
70 #define FIRST_USER_ADDRESS 0
75 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
79 #define BITS_PER_PTR (8*sizeof(unsigned long))
82 #define PTR_MASK (~(sizeof(void*)-1))
86 #define SIZEOF_PTR_LOG2 2
89 #define PAGE_PTR(address) \
90 ((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
93 #define SET_PAGE_DIR(tsk,pgdir)
95 #define pte_none(x) (!pte_val(x))
96 #define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
97 #define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0)
99 #define pmd_none(x) (!pmd_val(x))
103 #define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_KERNEL)) != _PAGE_TABLE)
104 #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
105 #define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0)
187 #define mk_pte(page, pgprot) __mk_pte(page_address(page), (pgprot))
189 #define mk_pte_phys(physpage, pgprot) \
193 pte_val(__pte) = (physpage) + pgprot_val(pgprot); \
200 #define pgprot_noncached(prot) __pgprot((pgprot_val(prot) | _PAGE_NO_CACHE))
214 #define pte_pagenr(pte) ((__pte_page(pte) - PAGE_OFFSET) >> PAGE_SHIFT)
218 #define __page_address(page) (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
219 #define pte_page(pte) (mem_map+pte_pagenr(pte))
229 #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
230 #define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
233 #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
242 #define pgd_offset_k(address) pgd_offset(&init_mm, address)
245 #define __pte_offset(address) \
246 (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
247 #define pte_offset_kernel(dir, address) \
248 ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
249 #define pte_offset_map(dir, address) \
250 ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
252 #define pte_unmap(pte) do { } while (0)
253 #define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT)
254 #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
256 #define pte_ERROR(e) \
257 printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), pte_val(e))
258 #define pgd_ERROR(e) \
259 printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
261 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
262 remap_pfn_range(vma, vaddr, pfn, size, prot)
281 #define __swp_type(x) (((x).val >> 5) & 0x7f)
282 #define __swp_offset(x) ((x).val >> 12)
283 #define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 5) | ((offset) << 12) })
284 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
285 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
287 #define kern_addr_valid(addr) (1)
294 #define pgtable_cache_init() do { } while (0)
296 #define pte_to_pgoff(x) (pte_val(x) >> 6)
297 #define pgoff_to_pte(x) __pte(((x) << 6) | _PAGE_FILE)