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11a6f6ab AK |
1 | #ifndef _ASM_POWERPC_BOOK3S_64_MMU_H_ |
2 | #define _ASM_POWERPC_BOOK3S_64_MMU_H_ | |
3 | ||
4 | #ifndef __ASSEMBLY__ | |
5 | /* | |
6 | * Page size definition | |
7 | * | |
8 | * shift : is the "PAGE_SHIFT" value for that page size | |
9 | * sllp : is a bit mask with the value of SLB L || LP to be or'ed | |
10 | * directly to a slbmte "vsid" value | |
11 | * penc : is the HPTE encoding mask for the "LP" field: | |
12 | * | |
13 | */ | |
14 | struct mmu_psize_def { | |
15 | unsigned int shift; /* number of bits */ | |
16 | int penc[MMU_PAGE_COUNT]; /* HPTE encoding */ | |
17 | unsigned int tlbiel; /* tlbiel supported for that page size */ | |
18 | unsigned long avpnm; /* bits to mask out in AVPN in the HPTE */ | |
2bfd65e4 AK |
19 | union { |
20 | unsigned long sllp; /* SLB L||LP (exact mask to use in slbmte) */ | |
21 | unsigned long ap; /* Ap encoding used by PowerISA 3.0 */ | |
22 | }; | |
11a6f6ab AK |
23 | }; |
24 | extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; | |
566ca99a | 25 | |
11a6f6ab AK |
26 | #endif /* __ASSEMBLY__ */ |
27 | ||
11a6f6ab AK |
28 | /* 64-bit classic hash table MMU */ |
29 | #include <asm/book3s/64/mmu-hash.h> | |
11a6f6ab AK |
30 | |
31 | #ifndef __ASSEMBLY__ | |
e9983344 | 32 | /* |
8ab102d6 | 33 | * ISA 3.0 partition and process table entry format |
e9983344 AK |
34 | */ |
35 | struct prtb_entry { | |
36 | __be64 prtb0; | |
37 | __be64 prtb1; | |
38 | }; | |
39 | extern struct prtb_entry *process_tb; | |
40 | ||
41 | struct patb_entry { | |
42 | __be64 patb0; | |
43 | __be64 patb1; | |
44 | }; | |
45 | extern struct patb_entry *partition_tb; | |
46 | ||
dbcbfee0 | 47 | /* Bits in patb0 field */ |
e9983344 | 48 | #define PATB_HR (1UL << 63) |
70cd4c10 | 49 | #define RPDB_MASK 0x0fffffffffffff00UL |
e9983344 | 50 | #define RPDB_SHIFT (1UL << 8) |
dbcbfee0 PM |
51 | #define RTS1_SHIFT 61 /* top 2 bits of radix tree size */ |
52 | #define RTS1_MASK (3UL << RTS1_SHIFT) | |
53 | #define RTS2_SHIFT 5 /* bottom 3 bits of radix tree size */ | |
54 | #define RTS2_MASK (7UL << RTS2_SHIFT) | |
55 | #define RPDS_MASK 0x1f /* root page dir. size field */ | |
56 | ||
57 | /* Bits in patb1 field */ | |
58 | #define PATB_GR (1UL << 63) /* guest uses radix; must match HR */ | |
59 | #define PRTS_MASK 0x1f /* process table size field */ | |
70cd4c10 | 60 | #define PRTB_MASK 0x0ffffffffffff000UL |
dbcbfee0 | 61 | |
e9983344 AK |
62 | /* |
63 | * Limit process table to PAGE_SIZE table. This | |
64 | * also limit the max pid we can support. | |
65 | * MAX_USER_CONTEXT * 16 bytes of space. | |
66 | */ | |
67 | #define PRTB_SIZE_SHIFT (CONTEXT_BITS + 4) | |
760573c1 ME |
68 | #define PRTB_ENTRIES (1ul << CONTEXT_BITS) |
69 | ||
e9983344 AK |
70 | /* |
71 | * Power9 currently only support 64K partition table size. | |
72 | */ | |
73 | #define PATB_SIZE_SHIFT 16 | |
11a6f6ab AK |
74 | |
75 | typedef unsigned long mm_context_id_t; | |
76 | struct spinlock; | |
77 | ||
1ab66d1f AP |
78 | /* Maximum possible number of NPUs in a system. */ |
79 | #define NV_MAX_NPUS 8 | |
80 | ||
11a6f6ab AK |
81 | typedef struct { |
82 | mm_context_id_t id; | |
83 | u16 user_psize; /* page size index */ | |
84 | ||
1ab66d1f AP |
85 | /* NPU NMMU context */ |
86 | struct npu_context *npu_context; | |
87 | ||
11a6f6ab AK |
88 | #ifdef CONFIG_PPC_MM_SLICES |
89 | u64 low_slices_psize; /* SLB page size encodings */ | |
90 | unsigned char high_slices_psize[SLICE_ARRAY_SIZE]; | |
957b778a | 91 | unsigned long addr_limit; |
11a6f6ab AK |
92 | #else |
93 | u16 sllp; /* SLB page size encoding */ | |
94 | #endif | |
95 | unsigned long vdso_base; | |
96 | #ifdef CONFIG_PPC_SUBPAGE_PROT | |
97 | struct subpage_prot_table spt; | |
98 | #endif /* CONFIG_PPC_SUBPAGE_PROT */ | |
99 | #ifdef CONFIG_PPC_ICSWX | |
100 | struct spinlock *cop_lockp; /* guard acop and cop_pid */ | |
101 | unsigned long acop; /* mask of enabled coprocessor types */ | |
102 | unsigned int cop_pid; /* pid value used with coprocessors */ | |
103 | #endif /* CONFIG_PPC_ICSWX */ | |
104 | #ifdef CONFIG_PPC_64K_PAGES | |
105 | /* for 4K PTE fragment support */ | |
106 | void *pte_frag; | |
107 | #endif | |
108 | #ifdef CONFIG_SPAPR_TCE_IOMMU | |
109 | struct list_head iommu_group_mem_list; | |
110 | #endif | |
111 | } mm_context_t; | |
112 | ||
113 | /* | |
114 | * The current system page and segment sizes | |
115 | */ | |
116 | extern int mmu_linear_psize; | |
117 | extern int mmu_virtual_psize; | |
118 | extern int mmu_vmalloc_psize; | |
119 | extern int mmu_vmemmap_psize; | |
120 | extern int mmu_io_psize; | |
121 | ||
756d08d1 | 122 | /* MMU initialization */ |
1a01dc87 | 123 | void mmu_early_init_devtree(void); |
bacf9cf8 | 124 | void hash__early_init_devtree(void); |
2537b09c | 125 | void radix__early_init_devtree(void); |
2bfd65e4 | 126 | extern void radix_init_native(void); |
756d08d1 | 127 | extern void hash__early_init_mmu(void); |
2bfd65e4 | 128 | extern void radix__early_init_mmu(void); |
756d08d1 AK |
129 | static inline void early_init_mmu(void) |
130 | { | |
2bfd65e4 AK |
131 | if (radix_enabled()) |
132 | return radix__early_init_mmu(); | |
756d08d1 AK |
133 | return hash__early_init_mmu(); |
134 | } | |
135 | extern void hash__early_init_mmu_secondary(void); | |
2bfd65e4 | 136 | extern void radix__early_init_mmu_secondary(void); |
756d08d1 AK |
137 | static inline void early_init_mmu_secondary(void) |
138 | { | |
2bfd65e4 AK |
139 | if (radix_enabled()) |
140 | return radix__early_init_mmu_secondary(); | |
756d08d1 AK |
141 | return hash__early_init_mmu_secondary(); |
142 | } | |
143 | ||
144 | extern void hash__setup_initial_memory_limit(phys_addr_t first_memblock_base, | |
145 | phys_addr_t first_memblock_size); | |
2bfd65e4 AK |
146 | extern void radix__setup_initial_memory_limit(phys_addr_t first_memblock_base, |
147 | phys_addr_t first_memblock_size); | |
756d08d1 AK |
148 | static inline void setup_initial_memory_limit(phys_addr_t first_memblock_base, |
149 | phys_addr_t first_memblock_size) | |
150 | { | |
b8f1b4f8 | 151 | if (early_radix_enabled()) |
2bfd65e4 AK |
152 | return radix__setup_initial_memory_limit(first_memblock_base, |
153 | first_memblock_size); | |
756d08d1 AK |
154 | return hash__setup_initial_memory_limit(first_memblock_base, |
155 | first_memblock_size); | |
156 | } | |
eea8148c ME |
157 | |
158 | extern int (*register_process_table)(unsigned long base, unsigned long page_size, | |
159 | unsigned long tbl_size); | |
160 | ||
cc3d2940 PM |
161 | #ifdef CONFIG_PPC_PSERIES |
162 | extern void radix_init_pseries(void); | |
163 | #else | |
164 | static inline void radix_init_pseries(void) { }; | |
165 | #endif | |
166 | ||
11a6f6ab AK |
167 | #endif /* __ASSEMBLY__ */ |
168 | #endif /* _ASM_POWERPC_BOOK3S_64_MMU_H_ */ |