blob: 5d3782deb403c4ffcdeab04cab86fde1e16194e6 (
plain) (
tree)
|
|
#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 */
|
