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