linux/arch/powerpc/include/asm/pte-fsl-booke.h
<<
>>
Prefs
   1#ifndef _ASM_POWERPC_PTE_FSL_BOOKE_H
   2#define _ASM_POWERPC_PTE_FSL_BOOKE_H
   3#ifdef __KERNEL__
   4
   5/* PTE bit definitions for Freescale BookE SW loaded TLB MMU based
   6 * processors
   7 *
   8   MMU Assist Register 3:
   9
  10   32 33 34 35 36  ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  11   RPN......................  0  0 U0 U1 U2 U3 UX SX UW SW UR SR
  12
  13   - PRESENT *must* be in the bottom three bits because swap cache
  14     entries use the top 29 bits.
  15
  16   - FILE *must* be in the bottom three bits because swap cache
  17     entries use the top 29 bits.
  18*/
  19
  20/* Definitions for FSL Book-E Cores */
  21#define _PAGE_PRESENT   0x00001 /* S: PTE contains a translation */
  22#define _PAGE_USER      0x00002 /* S: User page (maps to UR) */
  23#define _PAGE_FILE      0x00002 /* S: when !present: nonlinear file mapping */
  24#define _PAGE_RW        0x00004 /* S: Write permission (SW) */
  25#define _PAGE_DIRTY     0x00008 /* S: Page dirty */
  26#define _PAGE_EXEC      0x00010 /* H: SX permission */
  27#define _PAGE_ACCESSED  0x00020 /* S: Page referenced */
  28
  29#define _PAGE_ENDIAN    0x00040 /* H: E bit */
  30#define _PAGE_GUARDED   0x00080 /* H: G bit */
  31#define _PAGE_COHERENT  0x00100 /* H: M bit */
  32#define _PAGE_NO_CACHE  0x00200 /* H: I bit */
  33#define _PAGE_WRITETHRU 0x00400 /* H: W bit */
  34#define _PAGE_SPECIAL   0x00800 /* S: Special page */
  35
  36#define _PMD_PRESENT    0
  37#define _PMD_PRESENT_MASK (PAGE_MASK)
  38#define _PMD_BAD        (~PAGE_MASK)
  39
  40#endif /* __KERNEL__ */
  41#endif /*  _ASM_POWERPC_PTE_FSL_BOOKE_H */
  42