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sparc
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mm
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init_64.h

init_64.h 1.7 KB
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  1. #ifndef _SPARC64_MM_INIT_H
    2. 

  2. #define _SPARC64_MM_INIT_H
    3. 

  3. 

  4. #include <asm/page.h>
    5. 

  5. 

  6. /* Most of the symbols in this file are defined in init.c and
    7. 

  7.  * marked non-static so that assembler code can get at them.
    8. 

  8.  */
    9. 

  9. 

  10. #define MAX_PHYS_ADDRESS	(1UL << MAX_PHYS_ADDRESS_BITS)
    11. 

  11. #define KPTE_BITMAP_CHUNK_SZ		(256UL * 1024UL * 1024UL)
    12. 

  12. #define KPTE_BITMAP_BYTES	\
    13. 

  13. 	((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4)
    14. 

  14. #define VALID_ADDR_BITMAP_CHUNK_SZ	(4UL * 1024UL * 1024UL)
    15. 

  15. #define VALID_ADDR_BITMAP_BYTES	\
    16. 

  16. 	((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8)
    17. 

  17. 

  18. extern unsigned long kern_linear_pte_xor[4];
    19. 

  19. extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
    20. 

  20. extern unsigned int sparc64_highest_unlocked_tlb_ent;
    21. 

  21. extern unsigned long sparc64_kern_pri_context;
    22. 

  22. extern unsigned long sparc64_kern_pri_nuc_bits;
    23. 

  23. extern unsigned long sparc64_kern_sec_context;
    24. 

  24. extern void mmu_info(struct seq_file *m);
    25. 

  25. 

  26. struct linux_prom_translation {
    27. 

  27. 	unsigned long virt;
    28. 

  28. 	unsigned long size;
    29. 

  29. 	unsigned long data;
    30. 

  30. };
    31. 

  31. 

  32. /* Exported for kernel TLB miss handling in ktlb.S */
    33. 

  33. extern struct linux_prom_translation prom_trans[512];
    34. 

  34. extern unsigned int prom_trans_ents;
    35. 

  35. 

  36. /* Exported for SMP bootup purposes. */
    37. 

  37. extern unsigned long kern_locked_tte_data;
    38. 

  38. 

  39. extern void prom_world(int enter);
    40. 

  40. 

  41. #ifdef CONFIG_SPARSEMEM_VMEMMAP
    42. 

  42. #define VMEMMAP_CHUNK_SHIFT	22
    43. 

  43. #define VMEMMAP_CHUNK		(1UL << VMEMMAP_CHUNK_SHIFT)
    44. 

  44. #define VMEMMAP_CHUNK_MASK	~(VMEMMAP_CHUNK - 1UL)
    45. 

  45. #define VMEMMAP_ALIGN(x)	(((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK)
    46. 

  46. 

  47. #define VMEMMAP_SIZE	((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \
    48. 

  48. 			  sizeof(struct page)) >> VMEMMAP_CHUNK_SHIFT)
    49. 

  49. extern unsigned long vmemmap_table[VMEMMAP_SIZE];
    50. 

  50. #endif
    51. 

  51. 

  52. #endif /* _SPARC64_MM_INIT_H */
    53.