pte-fsl-booke.h 1.4 KB

1234567891011121314151617181920212223242526272829303132333435363738394041
  1. #ifndef _ASM_POWERPC_PTE_FSL_BOOKE_H
  2. #define _ASM_POWERPC_PTE_FSL_BOOKE_H
  3. #ifdef __KERNEL__
  4. /* PTE bit definitions for Freescale BookE SW loaded TLB MMU based
  5. * processors
  6. *
  7. MMU Assist Register 3:
  8. 32 33 34 35 36 ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  9. RPN...................... 0 0 U0 U1 U2 U3 UX SX UW SW UR SR
  10. - PRESENT *must* be in the bottom three bits because swap cache
  11. entries use the top 29 bits.
  12. - FILE *must* be in the bottom three bits because swap cache
  13. entries use the top 29 bits.
  14. */
  15. /* Definitions for FSL Book-E Cores */
  16. #define _PAGE_PRESENT 0x00001 /* S: PTE contains a translation */
  17. #define _PAGE_USER 0x00002 /* S: User page (maps to UR) */
  18. #define _PAGE_FILE 0x00002 /* S: when !present: nonlinear file mapping */
  19. #define _PAGE_RW 0x00004 /* S: Write permission (SW) */
  20. #define _PAGE_DIRTY 0x00008 /* S: Page dirty */
  21. #define _PAGE_EXEC 0x00010 /* H: SX permission */
  22. #define _PAGE_ACCESSED 0x00020 /* S: Page referenced */
  23. #define _PAGE_ENDIAN 0x00040 /* H: E bit */
  24. #define _PAGE_GUARDED 0x00080 /* H: G bit */
  25. #define _PAGE_COHERENT 0x00100 /* H: M bit */
  26. #define _PAGE_NO_CACHE 0x00200 /* H: I bit */
  27. #define _PAGE_WRITETHRU 0x00400 /* H: W bit */
  28. #define _PAGE_SPECIAL 0x00800 /* S: Special page */
  29. #define _PMD_PRESENT 0
  30. #define _PMD_PRESENT_MASK (PAGE_MASK)
  31. #define _PMD_BAD (~PAGE_MASK)
  32. #endif /* __KERNEL__ */
  33. #endif /* _ASM_POWERPC_PTE_FSL_BOOKE_H */