1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_SH_PGTABLE_32_H 13 #define __ASM_SH_PGTABLE_32_H 14 15 #define _PAGE_WT 0x001 16 #define _PAGE_HW_SHARED 0x002 17 #define _PAGE_DIRTY 0x004 18 #define _PAGE_CACHABLE 0x008 19 #define _PAGE_SZ0 0x010 20 #define _PAGE_RW 0x020 21 #define _PAGE_USER 0x040 22 #define _PAGE_SZ1 0x080 23 #define _PAGE_PRESENT 0x100 24 #define _PAGE_PROTNONE 0x200 25 #define _PAGE_ACCESSED 0x400 26 #define _PAGE_FILE _PAGE_WT 27 28 #define _PAGE_SZ_MASK (_PAGE_SZ0 | _PAGE_SZ1) 29 #define _PAGE_PR_MASK (_PAGE_RW | _PAGE_USER) 30 31 #define _PAGE_EXT_ESZ0 0x0010 32 #define _PAGE_EXT_ESZ1 0x0020 33 #define _PAGE_EXT_ESZ2 0x0040 34 #define _PAGE_EXT_ESZ3 0x0080 35 36 #define _PAGE_EXT_USER_EXEC 0x0100 37 #define _PAGE_EXT_USER_WRITE 0x0200 38 #define _PAGE_EXT_USER_READ 0x0400 39 40 #define _PAGE_EXT_KERN_EXEC 0x0800 41 #define _PAGE_EXT_KERN_WRITE 0x1000 42 #define _PAGE_EXT_KERN_READ 0x2000 43 44 #define _PAGE_EXT(x) ((unsigned long long)(x) << 32) 45 46 #define _PAGE_PCC_AREA5 0x00000000 47 #define _PAGE_PCC_AREA6 0x80000000 48 49 #define _PAGE_PCC_IODYN 0x00000001 50 #define _PAGE_PCC_IO8 0x20000000 51 #define _PAGE_PCC_IO16 0x20000001 52 #define _PAGE_PCC_COM8 0x40000000 53 #define _PAGE_PCC_COM16 0x40000001 54 #define _PAGE_PCC_ATR8 0x60000000 55 #define _PAGE_PCC_ATR16 0x60000001 56 57 #define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE) 58 59 #define _PAGE_FLAGS_HARDWARE_MASK (PHYS_ADDR_MASK & ~(_PAGE_CLEAR_FLAGS)) 60 61 #define _PAGE_FLAGS_HARD _PAGE_SZ0 62 63 #ifndef _PAGE_SZHUGE 64 #define _PAGE_SZHUGE (_PAGE_FLAGS_HARD) 65 #endif 66 67 #define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY) 68 69 #ifndef __ASSEMBLY__ 70 71 #define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) 72 73 #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) 74 75 #define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) 76 77 #define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) 78 79 #define PAGE_EXECREAD PAGE_READONLY 80 #define PAGE_RWX PAGE_SHARED 81 #define PAGE_WRITEONLY PAGE_SHARED 82 83 #define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD) 84 85 #define PAGE_KERNEL_NOCACHE __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD) 86 87 #define PAGE_KERNEL_RO __pgprot(_PAGE_PRESENT | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD) 88 89 #define PAGE_KERNEL_PCC(slot, type) __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_FLAGS_HARD | (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) | (type)) 90 91 #endif 92 93 #ifndef __ASSEMBLY__ 94 95 #define set_pte(pteptr, pteval) (*(pteptr) = pteval) 96 97 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) 98 99 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) 100 101 #define pfn_pte(pfn, prot) __pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot)) 102 #define pfn_pmd(pfn, prot) __pmd(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot)) 103 104 #define pte_none(x) (!pte_val(x)) 105 #define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE)) 106 107 #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) 108 109 #define pmd_none(x) (!pmd_val(x)) 110 #define pmd_present(x) (pmd_val(x)) 111 #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) 112 #define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK) 113 114 #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) 115 #define pte_page(x) pfn_to_page(pte_pfn(x)) 116 117 #define pte_not_present(pte) (!((pte).pte_low & _PAGE_PRESENT)) 118 #define pte_dirty(pte) ((pte).pte_low & _PAGE_DIRTY) 119 #define pte_young(pte) ((pte).pte_low & _PAGE_ACCESSED) 120 #define pte_file(pte) ((pte).pte_low & _PAGE_FILE) 121 #define pte_special(pte) (0) 122 123 #define pte_write(pte) ((pte).pte_low & _PAGE_RW) 124 125 #define PTE_BIT_FUNC(h,fn,op) static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; } 126 127 #define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE) 128 #define pgprot_noncached pgprot_writecombine 129 #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) 130 #define pmd_page_vaddr(pmd) ((unsigned long)pmd_val(pmd)) 131 #define pmd_page(pmd) (virt_to_page(pmd_val(pmd))) 132 #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) 133 #define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) 134 #define pgd_offset_k(address) pgd_offset(&init_mm, address) 135 #define pte_index(address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) 136 #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) 137 #define pte_offset_map(dir, address) pte_offset_kernel(dir, address) 138 #define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address) 139 #define pte_unmap(pte) do { } while (0) 140 #define pte_unmap_nested(pte) do { } while (0) 141 #define pte_ERROR(e) printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) 142 #define pgd_ERROR(e) printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) 143 #define __swp_type(x) ((x).val & 0xff) 144 #define __swp_offset(x) ((x).val >> 10) 145 #define __swp_entry(type, offset) ((swp_entry_t){(type) | (offset) <<10}) 146 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 1 }) 147 #define __swp_entry_to_pte(x) ((pte_t) { (x).val << 1 }) 148 #define PTE_FILE_MAX_BITS 29 149 #define pte_to_pgoff(pte) (pte_val(pte) >> 1) 150 #define pgoff_to_pte(off) ((pte_t) { ((off) << 1) | _PAGE_FILE }) 151 #endif 152 #endif 153