Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/sparc/mm/init_64.h
10820 views
1
#ifndef _SPARC64_MM_INIT_H

2
#define _SPARC64_MM_INIT_H

3


4
/* Most of the symbols in this file are defined in init.c and

5
 * marked non-static so that assembler code can get at them.

6
 */

7


8
#define MAX_PHYS_ADDRESS	(1UL << 41UL)

9
#define KPTE_BITMAP_CHUNK_SZ		(256UL * 1024UL * 1024UL)

10
#define KPTE_BITMAP_BYTES	\

11
	((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8)

12
#define VALID_ADDR_BITMAP_CHUNK_SZ	(4UL * 1024UL * 1024UL)

13
#define VALID_ADDR_BITMAP_BYTES	\

14
	((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8)

15


16
extern unsigned long kern_linear_pte_xor[2];

17
extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];

18
extern unsigned int sparc64_highest_unlocked_tlb_ent;

19
extern unsigned long sparc64_kern_pri_context;

20
extern unsigned long sparc64_kern_pri_nuc_bits;

21
extern unsigned long sparc64_kern_sec_context;

22
extern void mmu_info(struct seq_file *m);

23


24
struct linux_prom_translation {

25
	unsigned long virt;

26
	unsigned long size;

27
	unsigned long data;

28
};

29


30
/* Exported for kernel TLB miss handling in ktlb.S */

31
extern struct linux_prom_translation prom_trans[512];

32
extern unsigned int prom_trans_ents;

33


34
/* Exported for SMP bootup purposes. */

35
extern unsigned long kern_locked_tte_data;

36


37
extern void prom_world(int enter);

38


39
extern void free_initmem(void);

40


41
#ifdef CONFIG_SPARSEMEM_VMEMMAP

42
#define VMEMMAP_CHUNK_SHIFT	22

43
#define VMEMMAP_CHUNK		(1UL << VMEMMAP_CHUNK_SHIFT)

44
#define VMEMMAP_CHUNK_MASK	~(VMEMMAP_CHUNK - 1UL)

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

46


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

48
			  sizeof(struct page)) >> VMEMMAP_CHUNK_SHIFT)

49
extern unsigned long vmemmap_table[VMEMMAP_SIZE];

50
#endif

51


52
#endif /* _SPARC64_MM_INIT_H */

53


54