Etusivu Tutki Apua
Kirjaudu sisään
Rydia
/
linux-phytium
Tarkkaile 1
Äänestä 0
Fork 0
Tiedostot Ongelmat 0 Pull-pyynnöt 0 Wiki
Branch: master
Branchit Tagit
linux-phytium
/
arch
/
sh
/
include
/
asm
/
tlb_64.h

tlb_64.h 2.1 KB
Pysyvä linkki Historia Raaka

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172 
  1. /*
    2. 

  2.  * include/asm-sh/tlb_64.h
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2003  Paul Mundt
    5. 

  5.  *
    6. 

  6.  * This file is subject to the terms and conditions of the GNU General Public
    7. 

  7.  * License.  See the file "COPYING" in the main directory of this archive
    8. 

  8.  * for more details.
    9. 

  9.  */
    10. 

  10. #ifndef __ASM_SH_TLB_64_H
    11. 

  11. #define __ASM_SH_TLB_64_H
    12. 

  12. 

  13. /* ITLB defines */
    14. 

  14. #define ITLB_FIXED	0x00000000	/* First fixed ITLB, see head.S */
    15. 

  15. #define ITLB_LAST_VAR_UNRESTRICTED	0x000003F0	/* Last ITLB */
    16. 

  16. 

  17. /* DTLB defines */
    18. 

  18. #define DTLB_FIXED	0x00800000	/* First fixed DTLB, see head.S */
    19. 

  19. #define DTLB_LAST_VAR_UNRESTRICTED	0x008003F0	/* Last DTLB */
    20. 

  20. 

  21. #ifndef __ASSEMBLY__
    22. 

  22. 

  23. /**
    24. 

  24.  * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries
    25. 

  25.  *
    26. 

  26.  * @tlb:	TLB entry
    27. 

  27.  */
    28. 

  28. #define for_each_dtlb_entry(tlb)		\
    29. 

  29. 	for (tlb  = cpu_data->dtlb.first;	\
    30. 

  30. 	     tlb <= cpu_data->dtlb.last;	\
    31. 

  31. 	     tlb += cpu_data->dtlb.step)
    32. 

  32. 

  33. /**
    34. 

  34.  * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries
    35. 

  35.  *
    36. 

  36.  * @tlb:	TLB entry
    37. 

  37.  */
    38. 

  38. #define for_each_itlb_entry(tlb)		\
    39. 

  39. 	for (tlb  = cpu_data->itlb.first;	\
    40. 

  40. 	     tlb <= cpu_data->itlb.last;	\
    41. 

  41. 	     tlb += cpu_data->itlb.step)
    42. 

  42. 

  43. /**
    44. 

  44.  * __flush_tlb_slot - Flushes TLB slot @slot.
    45. 

  45.  *
    46. 

  46.  * @slot:	Address of TLB slot.
    47. 

  47.  */
    48. 

  48. static inline void __flush_tlb_slot(unsigned long long slot)
    49. 

  49. {
    50. 

  50. 	__asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
    51. 

  51. }
    52. 

  52. 

  53. #ifdef CONFIG_MMU
    54. 

  54. /* arch/sh64/mm/tlb.c */
    55. 

  55. int sh64_tlb_init(void);
    56. 

  56. unsigned long long sh64_next_free_dtlb_entry(void);
    57. 

  57. unsigned long long sh64_get_wired_dtlb_entry(void);
    58. 

  58. int sh64_put_wired_dtlb_entry(unsigned long long entry);
    59. 

  59. void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr,
    60. 

  60. 			 unsigned long asid, unsigned long paddr);
    61. 

  61. void sh64_teardown_tlb_slot(unsigned long long config_addr);
    62. 

  62. #else
    63. 

  63. #define sh64_tlb_init()					do { } while (0)
    64. 

  64. #define sh64_next_free_dtlb_entry()			(0)
    65. 

  65. #define sh64_get_wired_dtlb_entry()			(0)
    66. 

  66. #define sh64_put_wired_dtlb_entry(entry)		do { } while (0)
    67. 

  67. #define sh64_setup_tlb_slot(conf, virt, asid, phys)	do { } while (0)
    68. 

  68. #define sh64_teardown_tlb_slot(addr)			do { } while (0)
    69. 

  69. #endif /* CONFIG_MMU */
    70. 

  70. #endif /* __ASSEMBLY__ */
    71. 

  71. #endif /* __ASM_SH_TLB_64_H */
    72. 

  72.