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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup sparc64mm |
29 | /** @addtogroup sparc64mm |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_sparc64_TLB_H_ |
35 | #ifndef KERN_sparc64_TLB_H_ |
36 | #define KERN_sparc64_TLB_H_ |
36 | #define KERN_sparc64_TLB_H_ |
37 | 37 | ||
38 | #define ITLB_ENTRY_COUNT 64 |
38 | #define ITLB_ENTRY_COUNT 64 |
39 | #define DTLB_ENTRY_COUNT 64 |
39 | #define DTLB_ENTRY_COUNT 64 |
40 | 40 | ||
41 | #define MEM_CONTEXT_KERNEL 0 |
41 | #define MEM_CONTEXT_KERNEL 0 |
42 | #define MEM_CONTEXT_TEMP 1 |
42 | #define MEM_CONTEXT_TEMP 1 |
43 | 43 | ||
44 | /** Page sizes. */ |
44 | /** Page sizes. */ |
45 | #define PAGESIZE_8K 0 |
45 | #define PAGESIZE_8K 0 |
46 | #define PAGESIZE_64K 1 |
46 | #define PAGESIZE_64K 1 |
47 | #define PAGESIZE_512K 2 |
47 | #define PAGESIZE_512K 2 |
48 | #define PAGESIZE_4M 3 |
48 | #define PAGESIZE_4M 3 |
49 | 49 | ||
50 | /** Bit width of the TLB-locked portion of kernel address space. */ |
50 | /** Bit width of the TLB-locked portion of kernel address space. */ |
51 | #define KERNEL_PAGE_WIDTH 22 /* 4M */ |
51 | #define KERNEL_PAGE_WIDTH 22 /* 4M */ |
52 | 52 | ||
53 | /* TLB Demap Operation types. */ |
53 | /* TLB Demap Operation types. */ |
54 | #define TLB_DEMAP_PAGE 0 |
54 | #define TLB_DEMAP_PAGE 0 |
55 | #define TLB_DEMAP_CONTEXT 1 |
55 | #define TLB_DEMAP_CONTEXT 1 |
56 | 56 | ||
57 | #define TLB_DEMAP_TYPE_SHIFT 6 |
57 | #define TLB_DEMAP_TYPE_SHIFT 6 |
58 | 58 | ||
59 | /* TLB Demap Operation Context register encodings. */ |
59 | /* TLB Demap Operation Context register encodings. */ |
60 | #define TLB_DEMAP_PRIMARY 0 |
60 | #define TLB_DEMAP_PRIMARY 0 |
61 | #define TLB_DEMAP_SECONDARY 1 |
61 | #define TLB_DEMAP_SECONDARY 1 |
62 | #define TLB_DEMAP_NUCLEUS 2 |
62 | #define TLB_DEMAP_NUCLEUS 2 |
63 | 63 | ||
64 | #define TLB_DEMAP_CONTEXT_SHIFT 4 |
64 | #define TLB_DEMAP_CONTEXT_SHIFT 4 |
65 | 65 | ||
66 | /* TLB Tag Access shifts */ |
66 | /* TLB Tag Access shifts */ |
67 | #define TLB_TAG_ACCESS_CONTEXT_SHIFT 0 |
67 | #define TLB_TAG_ACCESS_CONTEXT_SHIFT 0 |
68 | #define TLB_TAG_ACCESS_CONTEXT_MASK ((1<<13)-1) |
68 | #define TLB_TAG_ACCESS_CONTEXT_MASK ((1 << 13) - 1) |
69 | #define TLB_TAG_ACCESS_VPN_SHIFT 13 |
69 | #define TLB_TAG_ACCESS_VPN_SHIFT 13 |
70 | 70 | ||
71 | #ifndef __ASM__ |
71 | #ifndef __ASM__ |
72 | 72 | ||
73 | #include <arch/mm/tte.h> |
73 | #include <arch/mm/tte.h> |
74 | #include <arch/mm/mmu.h> |
74 | #include <arch/mm/mmu.h> |
75 | #include <arch/mm/page.h> |
75 | #include <arch/mm/page.h> |
76 | #include <arch/asm.h> |
76 | #include <arch/asm.h> |
77 | #include <arch/barrier.h> |
77 | #include <arch/barrier.h> |
78 | #include <arch/types.h> |
78 | #include <arch/types.h> |
79 | #include <typedefs.h> |
79 | #include <typedefs.h> |
80 | 80 | ||
81 | union tlb_context_reg { |
81 | union tlb_context_reg { |
82 | uint64_t v; |
82 | uint64_t v; |
83 | struct { |
83 | struct { |
84 | unsigned long : 51; |
84 | unsigned long : 51; |
85 | unsigned context : 13; /**< Context/ASID. */ |
85 | unsigned context : 13; /**< Context/ASID. */ |
86 | } __attribute__ ((packed)); |
86 | } __attribute__ ((packed)); |
87 | }; |
87 | }; |
88 | typedef union tlb_context_reg tlb_context_reg_t; |
88 | typedef union tlb_context_reg tlb_context_reg_t; |
89 | 89 | ||
90 | /** I-/D-TLB Data In/Access Register type. */ |
90 | /** I-/D-TLB Data In/Access Register type. */ |
91 | typedef tte_data_t tlb_data_t; |
91 | typedef tte_data_t tlb_data_t; |
92 | 92 | ||
93 | /** I-/D-TLB Data Access Address in Alternate Space. */ |
93 | /** I-/D-TLB Data Access Address in Alternate Space. */ |
94 | union tlb_data_access_addr { |
94 | union tlb_data_access_addr { |
95 | uint64_t value; |
95 | uint64_t value; |
96 | struct { |
96 | struct { |
97 | uint64_t : 55; |
97 | uint64_t : 55; |
98 | unsigned tlb_entry : 6; |
98 | unsigned tlb_entry : 6; |
99 | unsigned : 3; |
99 | unsigned : 3; |
100 | } __attribute__ ((packed)); |
100 | } __attribute__ ((packed)); |
101 | }; |
101 | }; |
102 | typedef union tlb_data_access_addr tlb_data_access_addr_t; |
102 | typedef union tlb_data_access_addr tlb_data_access_addr_t; |
103 | typedef union tlb_data_access_addr tlb_tag_read_addr_t; |
103 | typedef union tlb_data_access_addr tlb_tag_read_addr_t; |
104 | 104 | ||
105 | /** I-/D-TLB Tag Read Register. */ |
105 | /** I-/D-TLB Tag Read Register. */ |
106 | union tlb_tag_read_reg { |
106 | union tlb_tag_read_reg { |
107 | uint64_t value; |
107 | uint64_t value; |
108 | struct { |
108 | struct { |
109 | uint64_t vpn : 51; /**< Virtual Address bits 63:13. */ |
109 | uint64_t vpn : 51; /**< Virtual Address bits 63:13. */ |
110 | unsigned context : 13; /**< Context identifier. */ |
110 | unsigned context : 13; /**< Context identifier. */ |
111 | } __attribute__ ((packed)); |
111 | } __attribute__ ((packed)); |
112 | }; |
112 | }; |
113 | typedef union tlb_tag_read_reg tlb_tag_read_reg_t; |
113 | typedef union tlb_tag_read_reg tlb_tag_read_reg_t; |
114 | typedef union tlb_tag_read_reg tlb_tag_access_reg_t; |
114 | typedef union tlb_tag_read_reg tlb_tag_access_reg_t; |
115 | 115 | ||
116 | 116 | ||
117 | /** TLB Demap Operation Address. */ |
117 | /** TLB Demap Operation Address. */ |
118 | union tlb_demap_addr { |
118 | union tlb_demap_addr { |
119 | uint64_t value; |
119 | uint64_t value; |
120 | struct { |
120 | struct { |
121 | uint64_t vpn: 51; /**< Virtual Address bits 63:13. */ |
121 | uint64_t vpn: 51; /**< Virtual Address bits 63:13. */ |
122 | unsigned : 6; /**< Ignored. */ |
122 | unsigned : 6; /**< Ignored. */ |
123 | unsigned type : 1; /**< The type of demap operation. */ |
123 | unsigned type : 1; /**< The type of demap operation. */ |
124 | unsigned context : 2; /**< Context register selection. */ |
124 | unsigned context : 2; /**< Context register selection. */ |
125 | unsigned : 4; /**< Zero. */ |
125 | unsigned : 4; /**< Zero. */ |
126 | } __attribute__ ((packed)); |
126 | } __attribute__ ((packed)); |
127 | }; |
127 | }; |
128 | typedef union tlb_demap_addr tlb_demap_addr_t; |
128 | typedef union tlb_demap_addr tlb_demap_addr_t; |
129 | 129 | ||
130 | /** TLB Synchronous Fault Status Register. */ |
130 | /** TLB Synchronous Fault Status Register. */ |
131 | union tlb_sfsr_reg { |
131 | union tlb_sfsr_reg { |
132 | uint64_t value; |
132 | uint64_t value; |
133 | struct { |
133 | struct { |
134 | unsigned long : 40; /**< Implementation dependent. */ |
134 | unsigned long : 40; /**< Implementation dependent. */ |
135 | unsigned asi : 8; /**< ASI. */ |
135 | unsigned asi : 8; /**< ASI. */ |
136 | unsigned : 2; |
136 | unsigned : 2; |
137 | unsigned ft : 7; /**< Fault type. */ |
137 | unsigned ft : 7; /**< Fault type. */ |
138 | unsigned e : 1; /**< Side-effect bit. */ |
138 | unsigned e : 1; /**< Side-effect bit. */ |
139 | unsigned ct : 2; /**< Context Register selection. */ |
139 | unsigned ct : 2; /**< Context Register selection. */ |
140 | unsigned pr : 1; /**< Privilege bit. */ |
140 | unsigned pr : 1; /**< Privilege bit. */ |
141 | unsigned w : 1; /**< Write bit. */ |
141 | unsigned w : 1; /**< Write bit. */ |
142 | unsigned ow : 1; /**< Overwrite bit. */ |
142 | unsigned ow : 1; /**< Overwrite bit. */ |
143 | unsigned fv : 1; /**< Fault Valid bit. */ |
143 | unsigned fv : 1; /**< Fault Valid bit. */ |
144 | } __attribute__ ((packed)); |
144 | } __attribute__ ((packed)); |
145 | }; |
145 | }; |
146 | typedef union tlb_sfsr_reg tlb_sfsr_reg_t; |
146 | typedef union tlb_sfsr_reg tlb_sfsr_reg_t; |
147 | 147 | ||
148 | /** Read MMU Primary Context Register. |
148 | /** Read MMU Primary Context Register. |
149 | * |
149 | * |
150 | * @return Current value of Primary Context Register. |
150 | * @return Current value of Primary Context Register. |
151 | */ |
151 | */ |
152 | static inline uint64_t mmu_primary_context_read(void) |
152 | static inline uint64_t mmu_primary_context_read(void) |
153 | { |
153 | { |
154 | return asi_u64_read(ASI_DMMU, VA_PRIMARY_CONTEXT_REG); |
154 | return asi_u64_read(ASI_DMMU, VA_PRIMARY_CONTEXT_REG); |
155 | } |
155 | } |
156 | 156 | ||
157 | /** Write MMU Primary Context Register. |
157 | /** Write MMU Primary Context Register. |
158 | * |
158 | * |
159 | * @param v New value of Primary Context Register. |
159 | * @param v New value of Primary Context Register. |
160 | */ |
160 | */ |
161 | static inline void mmu_primary_context_write(uint64_t v) |
161 | static inline void mmu_primary_context_write(uint64_t v) |
162 | { |
162 | { |
163 | asi_u64_write(ASI_DMMU, VA_PRIMARY_CONTEXT_REG, v); |
163 | asi_u64_write(ASI_DMMU, VA_PRIMARY_CONTEXT_REG, v); |
164 | flush(); |
164 | flush(); |
165 | } |
165 | } |
166 | 166 | ||
167 | /** Read MMU Secondary Context Register. |
167 | /** Read MMU Secondary Context Register. |
168 | * |
168 | * |
169 | * @return Current value of Secondary Context Register. |
169 | * @return Current value of Secondary Context Register. |
170 | */ |
170 | */ |
171 | static inline uint64_t mmu_secondary_context_read(void) |
171 | static inline uint64_t mmu_secondary_context_read(void) |
172 | { |
172 | { |
173 | return asi_u64_read(ASI_DMMU, VA_SECONDARY_CONTEXT_REG); |
173 | return asi_u64_read(ASI_DMMU, VA_SECONDARY_CONTEXT_REG); |
174 | } |
174 | } |
175 | 175 | ||
176 | /** Write MMU Primary Context Register. |
176 | /** Write MMU Primary Context Register. |
177 | * |
177 | * |
178 | * @param v New value of Primary Context Register. |
178 | * @param v New value of Primary Context Register. |
179 | */ |
179 | */ |
180 | static inline void mmu_secondary_context_write(uint64_t v) |
180 | static inline void mmu_secondary_context_write(uint64_t v) |
181 | { |
181 | { |
182 | asi_u64_write(ASI_DMMU, VA_SECONDARY_CONTEXT_REG, v); |
182 | asi_u64_write(ASI_DMMU, VA_SECONDARY_CONTEXT_REG, v); |
183 | flush(); |
183 | flush(); |
184 | } |
184 | } |
185 | 185 | ||
186 | /** Read IMMU TLB Data Access Register. |
186 | /** Read IMMU TLB Data Access Register. |
187 | * |
187 | * |
188 | * @param entry TLB Entry index. |
188 | * @param entry TLB Entry index. |
189 | * |
189 | * |
190 | * @return Current value of specified IMMU TLB Data Access Register. |
190 | * @return Current value of specified IMMU TLB Data Access Register. |
191 | */ |
191 | */ |
192 | static inline uint64_t itlb_data_access_read(index_t entry) |
192 | static inline uint64_t itlb_data_access_read(index_t entry) |
193 | { |
193 | { |
194 | tlb_data_access_addr_t reg; |
194 | tlb_data_access_addr_t reg; |
195 | 195 | ||
196 | reg.value = 0; |
196 | reg.value = 0; |
197 | reg.tlb_entry = entry; |
197 | reg.tlb_entry = entry; |
198 | return asi_u64_read(ASI_ITLB_DATA_ACCESS_REG, reg.value); |
198 | return asi_u64_read(ASI_ITLB_DATA_ACCESS_REG, reg.value); |
199 | } |
199 | } |
200 | 200 | ||
201 | /** Write IMMU TLB Data Access Register. |
201 | /** Write IMMU TLB Data Access Register. |
202 | * |
202 | * |
203 | * @param entry TLB Entry index. |
203 | * @param entry TLB Entry index. |
204 | * @param value Value to be written. |
204 | * @param value Value to be written. |
205 | */ |
205 | */ |
206 | static inline void itlb_data_access_write(index_t entry, uint64_t value) |
206 | static inline void itlb_data_access_write(index_t entry, uint64_t value) |
207 | { |
207 | { |
208 | tlb_data_access_addr_t reg; |
208 | tlb_data_access_addr_t reg; |
209 | 209 | ||
210 | reg.value = 0; |
210 | reg.value = 0; |
211 | reg.tlb_entry = entry; |
211 | reg.tlb_entry = entry; |
212 | asi_u64_write(ASI_ITLB_DATA_ACCESS_REG, reg.value, value); |
212 | asi_u64_write(ASI_ITLB_DATA_ACCESS_REG, reg.value, value); |
213 | flush(); |
213 | flush(); |
214 | } |
214 | } |
215 | 215 | ||
216 | /** Read DMMU TLB Data Access Register. |
216 | /** Read DMMU TLB Data Access Register. |
217 | * |
217 | * |
218 | * @param entry TLB Entry index. |
218 | * @param entry TLB Entry index. |
219 | * |
219 | * |
220 | * @return Current value of specified DMMU TLB Data Access Register. |
220 | * @return Current value of specified DMMU TLB Data Access Register. |
221 | */ |
221 | */ |
222 | static inline uint64_t dtlb_data_access_read(index_t entry) |
222 | static inline uint64_t dtlb_data_access_read(index_t entry) |
223 | { |
223 | { |
224 | tlb_data_access_addr_t reg; |
224 | tlb_data_access_addr_t reg; |
225 | 225 | ||
226 | reg.value = 0; |
226 | reg.value = 0; |
227 | reg.tlb_entry = entry; |
227 | reg.tlb_entry = entry; |
228 | return asi_u64_read(ASI_DTLB_DATA_ACCESS_REG, reg.value); |
228 | return asi_u64_read(ASI_DTLB_DATA_ACCESS_REG, reg.value); |
229 | } |
229 | } |
230 | 230 | ||
231 | /** Write DMMU TLB Data Access Register. |
231 | /** Write DMMU TLB Data Access Register. |
232 | * |
232 | * |
233 | * @param entry TLB Entry index. |
233 | * @param entry TLB Entry index. |
234 | * @param value Value to be written. |
234 | * @param value Value to be written. |
235 | */ |
235 | */ |
236 | static inline void dtlb_data_access_write(index_t entry, uint64_t value) |
236 | static inline void dtlb_data_access_write(index_t entry, uint64_t value) |
237 | { |
237 | { |
238 | tlb_data_access_addr_t reg; |
238 | tlb_data_access_addr_t reg; |
239 | 239 | ||
240 | reg.value = 0; |
240 | reg.value = 0; |
241 | reg.tlb_entry = entry; |
241 | reg.tlb_entry = entry; |
242 | asi_u64_write(ASI_DTLB_DATA_ACCESS_REG, reg.value, value); |
242 | asi_u64_write(ASI_DTLB_DATA_ACCESS_REG, reg.value, value); |
243 | membar(); |
243 | membar(); |
244 | } |
244 | } |
245 | 245 | ||
246 | /** Read IMMU TLB Tag Read Register. |
246 | /** Read IMMU TLB Tag Read Register. |
247 | * |
247 | * |
248 | * @param entry TLB Entry index. |
248 | * @param entry TLB Entry index. |
249 | * |
249 | * |
250 | * @return Current value of specified IMMU TLB Tag Read Register. |
250 | * @return Current value of specified IMMU TLB Tag Read Register. |
251 | */ |
251 | */ |
252 | static inline uint64_t itlb_tag_read_read(index_t entry) |
252 | static inline uint64_t itlb_tag_read_read(index_t entry) |
253 | { |
253 | { |
254 | tlb_tag_read_addr_t tag; |
254 | tlb_tag_read_addr_t tag; |
255 | 255 | ||
256 | tag.value = 0; |
256 | tag.value = 0; |
257 | tag.tlb_entry = entry; |
257 | tag.tlb_entry = entry; |
258 | return asi_u64_read(ASI_ITLB_TAG_READ_REG, tag.value); |
258 | return asi_u64_read(ASI_ITLB_TAG_READ_REG, tag.value); |
259 | } |
259 | } |
260 | 260 | ||
261 | /** Read DMMU TLB Tag Read Register. |
261 | /** Read DMMU TLB Tag Read Register. |
262 | * |
262 | * |
263 | * @param entry TLB Entry index. |
263 | * @param entry TLB Entry index. |
264 | * |
264 | * |
265 | * @return Current value of specified DMMU TLB Tag Read Register. |
265 | * @return Current value of specified DMMU TLB Tag Read Register. |
266 | */ |
266 | */ |
267 | static inline uint64_t dtlb_tag_read_read(index_t entry) |
267 | static inline uint64_t dtlb_tag_read_read(index_t entry) |
268 | { |
268 | { |
269 | tlb_tag_read_addr_t tag; |
269 | tlb_tag_read_addr_t tag; |
270 | 270 | ||
271 | tag.value = 0; |
271 | tag.value = 0; |
272 | tag.tlb_entry = entry; |
272 | tag.tlb_entry = entry; |
273 | return asi_u64_read(ASI_DTLB_TAG_READ_REG, tag.value); |
273 | return asi_u64_read(ASI_DTLB_TAG_READ_REG, tag.value); |
274 | } |
274 | } |
275 | 275 | ||
276 | /** Write IMMU TLB Tag Access Register. |
276 | /** Write IMMU TLB Tag Access Register. |
277 | * |
277 | * |
278 | * @param v Value to be written. |
278 | * @param v Value to be written. |
279 | */ |
279 | */ |
280 | static inline void itlb_tag_access_write(uint64_t v) |
280 | static inline void itlb_tag_access_write(uint64_t v) |
281 | { |
281 | { |
282 | asi_u64_write(ASI_IMMU, VA_IMMU_TAG_ACCESS, v); |
282 | asi_u64_write(ASI_IMMU, VA_IMMU_TAG_ACCESS, v); |
283 | flush(); |
283 | flush(); |
284 | } |
284 | } |
285 | 285 | ||
286 | /** Read IMMU TLB Tag Access Register. |
286 | /** Read IMMU TLB Tag Access Register. |
287 | * |
287 | * |
288 | * @return Current value of IMMU TLB Tag Access Register. |
288 | * @return Current value of IMMU TLB Tag Access Register. |
289 | */ |
289 | */ |
290 | static inline uint64_t itlb_tag_access_read(void) |
290 | static inline uint64_t itlb_tag_access_read(void) |
291 | { |
291 | { |
292 | return asi_u64_read(ASI_IMMU, VA_IMMU_TAG_ACCESS); |
292 | return asi_u64_read(ASI_IMMU, VA_IMMU_TAG_ACCESS); |
293 | } |
293 | } |
294 | 294 | ||
295 | /** Write DMMU TLB Tag Access Register. |
295 | /** Write DMMU TLB Tag Access Register. |
296 | * |
296 | * |
297 | * @param v Value to be written. |
297 | * @param v Value to be written. |
298 | */ |
298 | */ |
299 | static inline void dtlb_tag_access_write(uint64_t v) |
299 | static inline void dtlb_tag_access_write(uint64_t v) |
300 | { |
300 | { |
301 | asi_u64_write(ASI_DMMU, VA_DMMU_TAG_ACCESS, v); |
301 | asi_u64_write(ASI_DMMU, VA_DMMU_TAG_ACCESS, v); |
302 | membar(); |
302 | membar(); |
303 | } |
303 | } |
304 | 304 | ||
305 | /** Read DMMU TLB Tag Access Register. |
305 | /** Read DMMU TLB Tag Access Register. |
306 | * |
306 | * |
307 | * @return Current value of DMMU TLB Tag Access Register. |
307 | * @return Current value of DMMU TLB Tag Access Register. |
308 | */ |
308 | */ |
309 | static inline uint64_t dtlb_tag_access_read(void) |
309 | static inline uint64_t dtlb_tag_access_read(void) |
310 | { |
310 | { |
311 | return asi_u64_read(ASI_DMMU, VA_DMMU_TAG_ACCESS); |
311 | return asi_u64_read(ASI_DMMU, VA_DMMU_TAG_ACCESS); |
312 | } |
312 | } |
313 | 313 | ||
314 | 314 | ||
315 | /** Write IMMU TLB Data in Register. |
315 | /** Write IMMU TLB Data in Register. |
316 | * |
316 | * |
317 | * @param v Value to be written. |
317 | * @param v Value to be written. |
318 | */ |
318 | */ |
319 | static inline void itlb_data_in_write(uint64_t v) |
319 | static inline void itlb_data_in_write(uint64_t v) |
320 | { |
320 | { |
321 | asi_u64_write(ASI_ITLB_DATA_IN_REG, 0, v); |
321 | asi_u64_write(ASI_ITLB_DATA_IN_REG, 0, v); |
322 | flush(); |
322 | flush(); |
323 | } |
323 | } |
324 | 324 | ||
325 | /** Write DMMU TLB Data in Register. |
325 | /** Write DMMU TLB Data in Register. |
326 | * |
326 | * |
327 | * @param v Value to be written. |
327 | * @param v Value to be written. |
328 | */ |
328 | */ |
329 | static inline void dtlb_data_in_write(uint64_t v) |
329 | static inline void dtlb_data_in_write(uint64_t v) |
330 | { |
330 | { |
331 | asi_u64_write(ASI_DTLB_DATA_IN_REG, 0, v); |
331 | asi_u64_write(ASI_DTLB_DATA_IN_REG, 0, v); |
332 | membar(); |
332 | membar(); |
333 | } |
333 | } |
334 | 334 | ||
335 | /** Read ITLB Synchronous Fault Status Register. |
335 | /** Read ITLB Synchronous Fault Status Register. |
336 | * |
336 | * |
337 | * @return Current content of I-SFSR register. |
337 | * @return Current content of I-SFSR register. |
338 | */ |
338 | */ |
339 | static inline uint64_t itlb_sfsr_read(void) |
339 | static inline uint64_t itlb_sfsr_read(void) |
340 | { |
340 | { |
341 | return asi_u64_read(ASI_IMMU, VA_IMMU_SFSR); |
341 | return asi_u64_read(ASI_IMMU, VA_IMMU_SFSR); |
342 | } |
342 | } |
343 | 343 | ||
344 | /** Write ITLB Synchronous Fault Status Register. |
344 | /** Write ITLB Synchronous Fault Status Register. |
345 | * |
345 | * |
346 | * @param v New value of I-SFSR register. |
346 | * @param v New value of I-SFSR register. |
347 | */ |
347 | */ |
348 | static inline void itlb_sfsr_write(uint64_t v) |
348 | static inline void itlb_sfsr_write(uint64_t v) |
349 | { |
349 | { |
350 | asi_u64_write(ASI_IMMU, VA_IMMU_SFSR, v); |
350 | asi_u64_write(ASI_IMMU, VA_IMMU_SFSR, v); |
351 | flush(); |
351 | flush(); |
352 | } |
352 | } |
353 | 353 | ||
354 | /** Read DTLB Synchronous Fault Status Register. |
354 | /** Read DTLB Synchronous Fault Status Register. |
355 | * |
355 | * |
356 | * @return Current content of D-SFSR register. |
356 | * @return Current content of D-SFSR register. |
357 | */ |
357 | */ |
358 | static inline uint64_t dtlb_sfsr_read(void) |
358 | static inline uint64_t dtlb_sfsr_read(void) |
359 | { |
359 | { |
360 | return asi_u64_read(ASI_DMMU, VA_DMMU_SFSR); |
360 | return asi_u64_read(ASI_DMMU, VA_DMMU_SFSR); |
361 | } |
361 | } |
362 | 362 | ||
363 | /** Write DTLB Synchronous Fault Status Register. |
363 | /** Write DTLB Synchronous Fault Status Register. |
364 | * |
364 | * |
365 | * @param v New value of D-SFSR register. |
365 | * @param v New value of D-SFSR register. |
366 | */ |
366 | */ |
367 | static inline void dtlb_sfsr_write(uint64_t v) |
367 | static inline void dtlb_sfsr_write(uint64_t v) |
368 | { |
368 | { |
369 | asi_u64_write(ASI_DMMU, VA_DMMU_SFSR, v); |
369 | asi_u64_write(ASI_DMMU, VA_DMMU_SFSR, v); |
370 | membar(); |
370 | membar(); |
371 | } |
371 | } |
372 | 372 | ||
373 | /** Read DTLB Synchronous Fault Address Register. |
373 | /** Read DTLB Synchronous Fault Address Register. |
374 | * |
374 | * |
375 | * @return Current content of D-SFAR register. |
375 | * @return Current content of D-SFAR register. |
376 | */ |
376 | */ |
377 | static inline uint64_t dtlb_sfar_read(void) |
377 | static inline uint64_t dtlb_sfar_read(void) |
378 | { |
378 | { |
379 | return asi_u64_read(ASI_DMMU, VA_DMMU_SFAR); |
379 | return asi_u64_read(ASI_DMMU, VA_DMMU_SFAR); |
380 | } |
380 | } |
381 | 381 | ||
382 | /** Perform IMMU TLB Demap Operation. |
382 | /** Perform IMMU TLB Demap Operation. |
383 | * |
383 | * |
384 | * @param type Selects between context and page demap. |
384 | * @param type Selects between context and page demap. |
385 | * @param context_encoding Specifies which Context register has Context ID for demap. |
385 | * @param context_encoding Specifies which Context register has Context ID for |
- | 386 | * demap. |
|
386 | * @param page Address which is on the page to be demapped. |
387 | * @param page Address which is on the page to be demapped. |
387 | */ |
388 | */ |
388 | static inline void itlb_demap(int type, int context_encoding, uintptr_t page) |
389 | static inline void itlb_demap(int type, int context_encoding, uintptr_t page) |
389 | { |
390 | { |
390 | tlb_demap_addr_t da; |
391 | tlb_demap_addr_t da; |
391 | page_address_t pg; |
392 | page_address_t pg; |
392 | 393 | ||
393 | da.value = 0; |
394 | da.value = 0; |
394 | pg.address = page; |
395 | pg.address = page; |
395 | 396 | ||
396 | da.type = type; |
397 | da.type = type; |
397 | da.context = context_encoding; |
398 | da.context = context_encoding; |
398 | da.vpn = pg.vpn; |
399 | da.vpn = pg.vpn; |
399 | 400 | ||
400 | asi_u64_write(ASI_IMMU_DEMAP, da.value, 0); /* da.value is the address within the ASI */ |
401 | asi_u64_write(ASI_IMMU_DEMAP, da.value, 0); /* da.value is the |
- | 402 | * address within the |
|
- | 403 | * ASI */ |
|
401 | flush(); |
404 | flush(); |
402 | } |
405 | } |
403 | 406 | ||
404 | /** Perform DMMU TLB Demap Operation. |
407 | /** Perform DMMU TLB Demap Operation. |
405 | * |
408 | * |
406 | * @param type Selects between context and page demap. |
409 | * @param type Selects between context and page demap. |
407 | * @param context_encoding Specifies which Context register has Context ID for demap. |
410 | * @param context_encoding Specifies which Context register has Context ID for |
- | 411 | * demap. |
|
408 | * @param page Address which is on the page to be demapped. |
412 | * @param page Address which is on the page to be demapped. |
409 | */ |
413 | */ |
410 | static inline void dtlb_demap(int type, int context_encoding, uintptr_t page) |
414 | static inline void dtlb_demap(int type, int context_encoding, uintptr_t page) |
411 | { |
415 | { |
412 | tlb_demap_addr_t da; |
416 | tlb_demap_addr_t da; |
413 | page_address_t pg; |
417 | page_address_t pg; |
414 | 418 | ||
415 | da.value = 0; |
419 | da.value = 0; |
416 | pg.address = page; |
420 | pg.address = page; |
417 | 421 | ||
418 | da.type = type; |
422 | da.type = type; |
419 | da.context = context_encoding; |
423 | da.context = context_encoding; |
420 | da.vpn = pg.vpn; |
424 | da.vpn = pg.vpn; |
421 | 425 | ||
422 | asi_u64_write(ASI_DMMU_DEMAP, da.value, 0); /* da.value is the address within the ASI */ |
426 | asi_u64_write(ASI_DMMU_DEMAP, da.value, 0); /* da.value is the |
- | 427 | * address within the |
|
- | 428 | * ASI */ |
|
423 | membar(); |
429 | membar(); |
424 | } |
430 | } |
425 | 431 | ||
426 | extern void fast_instruction_access_mmu_miss(int n, istate_t *istate); |
432 | extern void fast_instruction_access_mmu_miss(int n, istate_t *istate); |
427 | extern void fast_data_access_mmu_miss(int n, istate_t *istate); |
433 | extern void fast_data_access_mmu_miss(int n, istate_t *istate); |
428 | extern void fast_data_access_protection(int n, istate_t *istate); |
434 | extern void fast_data_access_protection(int n, istate_t *istate); |
429 | 435 | ||
430 | extern void dtlb_insert_mapping(uintptr_t page, uintptr_t frame, int pagesize, bool locked, bool cacheable); |
436 | extern void dtlb_insert_mapping(uintptr_t page, uintptr_t frame, int pagesize, bool locked, bool cacheable); |
431 | 437 | ||
432 | extern void dump_sfsr_and_sfar(void); |
438 | extern void dump_sfsr_and_sfar(void); |
433 | 439 | ||
434 | #endif /* !def __ASM__ */ |
440 | #endif /* !def __ASM__ */ |
435 | 441 | ||
436 | #endif |
442 | #endif |
437 | 443 | ||
438 | /** @} |
444 | /** @} |
439 | */ |
445 | */ |
440 | 446 |