| David S. Miller | af1ee56 | 2008-09-12 00:19:21 -0700 | [diff] [blame] | 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 << 42UL) |
| 9 | #define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) |
| 10 | #define KPTE_BITMAP_BYTES \ |
| 11 | ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8) |
| 12 | |
| 13 | extern unsigned long kern_linear_pte_xor[2]; |
| 14 | extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; |
| 15 | extern unsigned int sparc64_highest_unlocked_tlb_ent; |
| 16 | extern unsigned long sparc64_kern_pri_context; |
| 17 | extern unsigned long sparc64_kern_pri_nuc_bits; |
| 18 | extern unsigned long sparc64_kern_sec_context; |
| 19 | extern void mmu_info(struct seq_file *m); |
| 20 | |
| 21 | struct linux_prom_translation { |
| 22 | unsigned long virt; |
| 23 | unsigned long size; |
| 24 | unsigned long data; |
| 25 | }; |
| 26 | |
| 27 | /* Exported for kernel TLB miss handling in ktlb.S */ |
| 28 | extern struct linux_prom_translation prom_trans[512]; |
| 29 | extern unsigned int prom_trans_ents; |
| 30 | |
| 31 | /* Exported for SMP bootup purposes. */ |
| 32 | extern unsigned long kern_locked_tte_data; |
| 33 | |
| 34 | extern void prom_world(int enter); |
| 35 | |
| 36 | extern void free_initmem(void); |
| 37 | |
| 38 | #ifdef CONFIG_SPARSEMEM_VMEMMAP |
| 39 | #define VMEMMAP_CHUNK_SHIFT 22 |
| 40 | #define VMEMMAP_CHUNK (1UL << VMEMMAP_CHUNK_SHIFT) |
| 41 | #define VMEMMAP_CHUNK_MASK ~(VMEMMAP_CHUNK - 1UL) |
| 42 | #define VMEMMAP_ALIGN(x) (((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK) |
| 43 | |
| 44 | #define VMEMMAP_SIZE ((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \ |
| 45 | sizeof(struct page *)) >> VMEMMAP_CHUNK_SHIFT) |
| 46 | extern unsigned long vmemmap_table[VMEMMAP_SIZE]; |
| 47 | #endif |
| 48 | |
| 49 | #endif /* _SPARC64_MM_INIT_H */ |