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af1ee569 DM |
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 | ||
d8ed1d43 DM |
8 | #define MAX_PHYS_ADDRESS (1UL << 41UL) |
9 | #define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) | |
af1ee569 DM |
10 | #define KPTE_BITMAP_BYTES \ |
11 | ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8) | |
d8ed1d43 DM |
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) | |
af1ee569 DM |
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 */ |