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gerrit-public.fairphone.software / kernel / msm-4.19 / f05a68653e56ca2f23bccf7e50be69486886f052 / . / arch / sparc / mm / init_64.h
blob: 5d3782deb403c4ffcdeab04cab86fde1e16194e6 [file] [log] [blame]
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]1#ifndef _SPARC64_MM_INIT_H
2#define _SPARC64_MM_INIT_H
3
David S. Millerbb7b4352013-09-18 15:39:06 -0700[diff] [blame]4#include <asm/page.h>
5
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]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
David S. Millerbb7b4352013-09-18 15:39:06 -0700[diff] [blame]10#define MAX_PHYS_ADDRESS (1UL << MAX_PHYS_ADDRESS_BITS)
David S. Millerd8ed1d42009-08-25 16:47:46 -0700[diff] [blame]11#define KPTE_BITMAP_CHUNK_SZ (256UL * 1024UL * 1024UL)
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]12#define KPTE_BITMAP_BYTES \
David S. Miller4f93d212012-09-06 18:13:58 -0700[diff] [blame]13 ((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4)
David S. Millerd8ed1d42009-08-25 16:47:46 -0700[diff] [blame]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)
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]17
David S. Miller4f93d212012-09-06 18:13:58 -0700[diff] [blame]18extern unsigned long kern_linear_pte_xor[4];
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]19extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
20extern unsigned int sparc64_highest_unlocked_tlb_ent;
21extern unsigned long sparc64_kern_pri_context;
22extern unsigned long sparc64_kern_pri_nuc_bits;
23extern unsigned long sparc64_kern_sec_context;
24extern void mmu_info(struct seq_file *m);
25
26struct 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 */
33extern struct linux_prom_translation prom_trans[512];
34extern unsigned int prom_trans_ents;
35
36/* Exported for SMP bootup purposes. */
37extern unsigned long kern_locked_tte_data;
38
39extern void prom_world(int enter);
40
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]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) * \
David S. Millerbffbc942009-11-23 16:38:56 -0800[diff] [blame]48 sizeof(struct page)) >> VMEMMAP_CHUNK_SHIFT)
David S. Milleraf1ee562008-09-12 00:19:21 -0700[diff] [blame]49extern unsigned long vmemmap_table[VMEMMAP_SIZE];
50#endif
51
52#endif /* _SPARC64_MM_INIT_H */