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 16extern unsigned long kern_linear_pte_xor[2]; 17extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; 18extern unsigned int sparc64_highest_unlocked_tlb_ent; 19extern unsigned long sparc64_kern_pri_context; 20extern unsigned long sparc64_kern_pri_nuc_bits; 21extern unsigned long sparc64_kern_sec_context; 22extern void mmu_info(struct seq_file *m); 23 24struct 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 */ 31extern struct linux_prom_translation prom_trans[512]; 32extern unsigned int prom_trans_ents; 33 34/* Exported for SMP bootup purposes. */ 35extern unsigned long kern_locked_tte_data; 36 37extern void prom_world(int enter); 38 39extern 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) 49extern unsigned long vmemmap_table[VMEMMAP_SIZE]; 50#endif 51 52#endif /* _SPARC64_MM_INIT_H */ 53