minix/servers/vm/arch/i386/pagetable.h

   1
   2 #ifndef _PAGETABLE_H
   3 #define _PAGETABLE_H 1
   4
   5 #include <stdint.h>
   6 #include <machine/vm.h>
   7
   8 #include "vm.h"
   9
  10 /* Mapping flags. */
  11 #define PTF_WRITE       I386_VM_WRITE
  12 #define PTF_READ        I386_VM_READ
  13 #define PTF_PRESENT     I386_VM_PRESENT
  14 #define PTF_USER        I386_VM_USER
  15 #define PTF_GLOBAL      I386_VM_GLOBAL
  16 #define PTF_NOCACHE     (I386_VM_PWT | I386_VM_PCD)
  17
  18 #define ARCH_VM_DIR_ENTRIES     I386_VM_DIR_ENTRIES
  19 #define ARCH_BIG_PAGE_SIZE      I386_BIG_PAGE_SIZE
  20 #define ARCH_VM_ADDR_MASK       I386_VM_ADDR_MASK
  21 #define ARCH_VM_PAGE_PRESENT    I386_VM_PRESENT
  22 #define ARCH_VM_PDE_MASK        I386_VM_PDE_MASK
  23 #define ARCH_VM_PDE_PRESENT     I386_VM_PRESENT
  24 #define ARCH_VM_PTE_PRESENT     I386_VM_PRESENT
  25 #define ARCH_VM_PTE_USER        I386_VM_USER
  26 #define ARCH_VM_PTE_RW          I386_VM_WRITE
  27 #define ARCH_PAGEDIR_SIZE       I386_PAGE_SIZE
  28 #define ARCH_VM_BIGPAGE         I386_VM_BIGPAGE
  29 #define ARCH_VM_PT_ENTRIES      I386_VM_PT_ENTRIES
  30
  31 /* For arch-specific PT routines to check if no bits outside
  32  * the regular flags are set.
  33  */
  34 #define PTF_ALLFLAGS   (PTF_READ|PTF_WRITE|PTF_PRESENT|PTF_USER|PTF_GLOBAL|PTF_NOCACHE)
  35
  36 #define PFERR_NOPAGE(e) (!((e) & I386_VM_PFE_P))
  37 #define PFERR_PROT(e)   (((e) & I386_VM_PFE_P))
  38 #define PFERR_WRITE(e)  ((e) & I386_VM_PFE_W)
  39 #define PFERR_READ(e)   (!((e) & I386_VM_PFE_W))
  40
  41 #define VM_PAGE_SIZE    I386_PAGE_SIZE
  42
  43 /* virtual address -> pde, pte macros */
  44 #define ARCH_VM_PTE(v) I386_VM_PTE(v)
  45 #define ARCH_VM_PDE(v) I386_VM_PDE(v)
  46
  47 #endif