51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
#ifndef _SPARC64_MM_INIT_H
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#define _SPARC64_MM_INIT_H
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/* Most of the symbols in this file are defined in init.c and
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* marked non-static so that assembler code can get at them.
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*/
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#define MAX_PHYS_ADDRESS (1UL << 41UL)
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#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL)
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#define KPTE_BITMAP_BYTES \
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((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4)
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#define VALID_ADDR_BITMAP_CHUNK_SZ (4UL * 1024UL * 1024UL)
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#define VALID_ADDR_BITMAP_BYTES \
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((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8)
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extern unsigned long kern_linear_pte_xor[4];
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extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
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extern unsigned int sparc64_highest_unlocked_tlb_ent;
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extern unsigned long sparc64_kern_pri_context;
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extern unsigned long sparc64_kern_pri_nuc_bits;
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extern unsigned long sparc64_kern_sec_context;
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extern void mmu_info(struct seq_file *m);
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struct linux_prom_translation {
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unsigned long virt;
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unsigned long size;
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unsigned long data;
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};
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/* Exported for kernel TLB miss handling in ktlb.S */
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extern struct linux_prom_translation prom_trans[512];
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extern unsigned int prom_trans_ents;
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/* Exported for SMP bootup purposes. */
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extern unsigned long kern_locked_tte_data;
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extern void prom_world(int enter);
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#ifdef CONFIG_SPARSEMEM_VMEMMAP
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#define VMEMMAP_CHUNK_SHIFT 22
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#define VMEMMAP_CHUNK (1UL << VMEMMAP_CHUNK_SHIFT)
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#define VMEMMAP_CHUNK_MASK ~(VMEMMAP_CHUNK - 1UL)
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#define VMEMMAP_ALIGN(x) (((x)+VMEMMAP_CHUNK-1UL)&VMEMMAP_CHUNK_MASK)
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#define VMEMMAP_SIZE ((((1UL << MAX_PHYSADDR_BITS) >> PAGE_SHIFT) * \
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sizeof(struct page)) >> VMEMMAP_CHUNK_SHIFT)
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extern unsigned long vmemmap_table[VMEMMAP_SIZE];
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#endif
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#endif /* _SPARC64_MM_INIT_H */
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