| #ifndef _SPARC64_MM_INIT_H |
| #define _SPARC64_MM_INIT_H |
| |
| #include <asm/page.h> |
| |
| /* Most of the symbols in this file are defined in init.c and |
| * marked non-static so that assembler code can get at them. |
| */ |
| |
| #define MAX_PHYS_ADDRESS (1UL << MAX_PHYS_ADDRESS_BITS) |
| #define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL) |
| #define KPTE_BITMAP_BYTES \ |
| ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4) |
| #define VALID_ADDR_BITMAP_CHUNK_SZ (4UL * 1024UL * 1024UL) |
| #define VALID_ADDR_BITMAP_BYTES \ |
| ((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8) |
| |
| extern unsigned long kern_linear_pte_xor[4]; |
| extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; |
| extern unsigned int sparc64_highest_unlocked_tlb_ent; |
| extern unsigned long sparc64_kern_pri_context; |
| extern unsigned long sparc64_kern_pri_nuc_bits; |
| extern unsigned long sparc64_kern_sec_context; |
| extern void mmu_info(struct seq_file *m); |
| |
| struct linux_prom_translation { |
| unsigned long virt; |
| unsigned long size; |
| unsigned long data; |
| }; |
| |
| /* Exported for kernel TLB miss handling in ktlb.S */ |
| extern struct linux_prom_translation prom_trans[512]; |
| extern unsigned int prom_trans_ents; |
| |
| /* Exported for SMP bootup purposes. */ |
| extern unsigned long kern_locked_tte_data; |
| |
| extern void prom_world(int enter); |
| |
| #ifdef CONFIG_SPARSEMEM_VMEMMAP |
| #define VMEMMAP_CHUNK_SHIFT 22 |
| #define VMEMMAP_CHUNK (1UL << VMEMMAP_CHUNK_SHIFT) |
| #define VMEMMAP_CHUNK_MASK ~(VMEMMAP_CHUNK - 1UL) |
| #define VMEMMAP_ALIGN(x) (((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK) |
| |
| #define VMEMMAP_SIZE ((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \ |
| sizeof(struct page)) >> VMEMMAP_CHUNK_SHIFT) |
| extern unsigned long vmemmap_table[VMEMMAP_SIZE]; |
| #endif |
| |
| #endif /* _SPARC64_MM_INIT_H */ |
