1 #ifndef _SPARC64_MM_INIT_H 2 #define _SPARC64_MM_INIT_H 3 4 #include <asm/page.h> 5 6 /* Most of the symbols in this file are defined in init.c and 7 * marked non-static so that assembler code can get at them. 8 */ 9 10 #define MAX_PHYS_ADDRESS (1UL << MAX_PHYS_ADDRESS_BITS) 11 #define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) 12 #define KPTE_BITMAP_BYTES \ 13 ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4) 14 #define VALID_ADDR_BITMAP_CHUNK_SZ (4UL * 1024UL * 1024UL) 15 #define VALID_ADDR_BITMAP_BYTES \ 16 ((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8) 17 18 extern unsigned long kern_linear_pte_xor[4]; 19 extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; 20 extern unsigned int sparc64_highest_unlocked_tlb_ent; 21 extern unsigned long sparc64_kern_pri_context; 22 extern unsigned long sparc64_kern_pri_nuc_bits; 23 extern unsigned long sparc64_kern_sec_context; 24 extern void mmu_info(struct seq_file *m); 25 26 struct linux_prom_translation { 27 unsigned long virt; 28 unsigned long size; 29 unsigned long data; 30 }; 31 32 /* Exported for kernel TLB miss handling in ktlb.S */ 33 extern struct linux_prom_translation prom_trans[512]; 34 extern unsigned int prom_trans_ents; 35 36 /* Exported for SMP bootup purposes. */ 37 extern unsigned long kern_locked_tte_data; 38 39 extern void prom_world(int enter); 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