1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * |
4 | * Copyright (C) 2013 Freescale Semiconductor, Inc. |
5 | */ |
6 | |
7 | #ifndef __FSL_PAMU_H |
8 | #define __FSL_PAMU_H |
9 | |
10 | #include <linux/iommu.h> |
11 | #include <linux/pci.h> |
12 | |
13 | #include <asm/fsl_pamu_stash.h> |
14 | |
15 | /* Bit Field macros |
16 | * v = bit field variable; m = mask, m##_SHIFT = shift, x = value to load |
17 | */ |
18 | #define set_bf(v, m, x) (v = ((v) & ~(m)) | (((x) << m##_SHIFT) & (m))) |
19 | #define get_bf(v, m) (((v) & (m)) >> m##_SHIFT) |
20 | |
21 | /* PAMU CCSR space */ |
22 | #define PAMU_PGC 0x00000000 /* Allows all peripheral accesses */ |
23 | #define PAMU_PE 0x40000000 /* enable PAMU */ |
24 | |
25 | /* PAMU_OFFSET to the next pamu space in ccsr */ |
26 | #define PAMU_OFFSET 0x1000 |
27 | |
28 | #define PAMU_MMAP_REGS_BASE 0 |
29 | |
30 | struct pamu_mmap_regs { |
31 | u32 ppbah; |
32 | u32 ppbal; |
33 | u32 pplah; |
34 | u32 pplal; |
35 | u32 spbah; |
36 | u32 spbal; |
37 | u32 splah; |
38 | u32 splal; |
39 | u32 obah; |
40 | u32 obal; |
41 | u32 olah; |
42 | u32 olal; |
43 | }; |
44 | |
45 | /* PAMU Error Registers */ |
46 | #define PAMU_POES1 0x0040 |
47 | #define PAMU_POES2 0x0044 |
48 | #define PAMU_POEAH 0x0048 |
49 | #define PAMU_POEAL 0x004C |
50 | #define PAMU_AVS1 0x0050 |
51 | #define PAMU_AVS1_AV 0x1 |
52 | #define PAMU_AVS1_OTV 0x6 |
53 | #define PAMU_AVS1_APV 0x78 |
54 | #define PAMU_AVS1_WAV 0x380 |
55 | #define PAMU_AVS1_LAV 0x1c00 |
56 | #define PAMU_AVS1_GCV 0x2000 |
57 | #define PAMU_AVS1_PDV 0x4000 |
58 | #define PAMU_AV_MASK (PAMU_AVS1_AV | PAMU_AVS1_OTV | PAMU_AVS1_APV | PAMU_AVS1_WAV \ |
59 | | PAMU_AVS1_LAV | PAMU_AVS1_GCV | PAMU_AVS1_PDV) |
60 | #define PAMU_AVS1_LIODN_SHIFT 16 |
61 | #define PAMU_LAV_LIODN_NOT_IN_PPAACT 0x400 |
62 | |
63 | #define PAMU_AVS2 0x0054 |
64 | #define PAMU_AVAH 0x0058 |
65 | #define PAMU_AVAL 0x005C |
66 | #define PAMU_EECTL 0x0060 |
67 | #define PAMU_EEDIS 0x0064 |
68 | #define PAMU_EEINTEN 0x0068 |
69 | #define PAMU_EEDET 0x006C |
70 | #define PAMU_EEATTR 0x0070 |
71 | #define PAMU_EEAHI 0x0074 |
72 | #define PAMU_EEALO 0x0078 |
73 | #define PAMU_EEDHI 0X007C |
74 | #define PAMU_EEDLO 0x0080 |
75 | #define PAMU_EECC 0x0084 |
76 | #define PAMU_UDAD 0x0090 |
77 | |
78 | /* PAMU Revision Registers */ |
79 | #define PAMU_PR1 0x0BF8 |
80 | #define PAMU_PR2 0x0BFC |
81 | |
82 | /* PAMU version mask */ |
83 | #define PAMU_PR1_MASK 0xffff |
84 | |
85 | /* PAMU Capabilities Registers */ |
86 | #define PAMU_PC1 0x0C00 |
87 | #define PAMU_PC2 0x0C04 |
88 | #define PAMU_PC3 0x0C08 |
89 | #define PAMU_PC4 0x0C0C |
90 | |
91 | /* PAMU Control Register */ |
92 | #define PAMU_PC 0x0C10 |
93 | |
94 | /* PAMU control defs */ |
95 | #define PAMU_CONTROL 0x0C10 |
96 | #define PAMU_PC_PGC 0x80000000 /* PAMU gate closed bit */ |
97 | #define PAMU_PC_PE 0x40000000 /* PAMU enable bit */ |
98 | #define PAMU_PC_SPCC 0x00000010 /* sPAACE cache enable */ |
99 | #define PAMU_PC_PPCC 0x00000001 /* pPAACE cache enable */ |
100 | #define PAMU_PC_OCE 0x00001000 /* OMT cache enable */ |
101 | |
102 | #define PAMU_PFA1 0x0C14 |
103 | #define PAMU_PFA2 0x0C18 |
104 | |
105 | #define PAMU_PC2_MLIODN(X) ((X) >> 16) |
106 | #define PAMU_PC3_MWCE(X) (((X) >> 21) & 0xf) |
107 | |
108 | /* PAMU Interrupt control and Status Register */ |
109 | #define PAMU_PICS 0x0C1C |
110 | #define PAMU_ACCESS_VIOLATION_STAT 0x8 |
111 | #define PAMU_ACCESS_VIOLATION_ENABLE 0x4 |
112 | |
113 | /* PAMU Debug Registers */ |
114 | #define PAMU_PD1 0x0F00 |
115 | #define PAMU_PD2 0x0F04 |
116 | #define PAMU_PD3 0x0F08 |
117 | #define PAMU_PD4 0x0F0C |
118 | |
119 | #define PAACE_AP_PERMS_DENIED 0x0 |
120 | #define PAACE_AP_PERMS_QUERY 0x1 |
121 | #define PAACE_AP_PERMS_UPDATE 0x2 |
122 | #define PAACE_AP_PERMS_ALL 0x3 |
123 | |
124 | #define PAACE_DD_TO_HOST 0x0 |
125 | #define PAACE_DD_TO_IO 0x1 |
126 | #define PAACE_PT_PRIMARY 0x0 |
127 | #define PAACE_PT_SECONDARY 0x1 |
128 | #define PAACE_V_INVALID 0x0 |
129 | #define PAACE_V_VALID 0x1 |
130 | #define PAACE_MW_SUBWINDOWS 0x1 |
131 | |
132 | #define PAACE_WSE_4K 0xB |
133 | #define PAACE_WSE_8K 0xC |
134 | #define PAACE_WSE_16K 0xD |
135 | #define PAACE_WSE_32K 0xE |
136 | #define PAACE_WSE_64K 0xF |
137 | #define PAACE_WSE_128K 0x10 |
138 | #define PAACE_WSE_256K 0x11 |
139 | #define PAACE_WSE_512K 0x12 |
140 | #define PAACE_WSE_1M 0x13 |
141 | #define PAACE_WSE_2M 0x14 |
142 | #define PAACE_WSE_4M 0x15 |
143 | #define PAACE_WSE_8M 0x16 |
144 | #define PAACE_WSE_16M 0x17 |
145 | #define PAACE_WSE_32M 0x18 |
146 | #define PAACE_WSE_64M 0x19 |
147 | #define PAACE_WSE_128M 0x1A |
148 | #define PAACE_WSE_256M 0x1B |
149 | #define PAACE_WSE_512M 0x1C |
150 | #define PAACE_WSE_1G 0x1D |
151 | #define PAACE_WSE_2G 0x1E |
152 | #define PAACE_WSE_4G 0x1F |
153 | |
154 | #define PAACE_DID_PCI_EXPRESS_1 0x00 |
155 | #define PAACE_DID_PCI_EXPRESS_2 0x01 |
156 | #define PAACE_DID_PCI_EXPRESS_3 0x02 |
157 | #define PAACE_DID_PCI_EXPRESS_4 0x03 |
158 | #define PAACE_DID_LOCAL_BUS 0x04 |
159 | #define PAACE_DID_SRIO 0x0C |
160 | #define PAACE_DID_MEM_1 0x10 |
161 | #define PAACE_DID_MEM_2 0x11 |
162 | #define PAACE_DID_MEM_3 0x12 |
163 | #define PAACE_DID_MEM_4 0x13 |
164 | #define PAACE_DID_MEM_1_2 0x14 |
165 | #define PAACE_DID_MEM_3_4 0x15 |
166 | #define PAACE_DID_MEM_1_4 0x16 |
167 | #define PAACE_DID_BM_SW_PORTAL 0x18 |
168 | #define PAACE_DID_PAMU 0x1C |
169 | #define PAACE_DID_CAAM 0x21 |
170 | #define PAACE_DID_QM_SW_PORTAL 0x3C |
171 | #define PAACE_DID_CORE0_INST 0x80 |
172 | #define PAACE_DID_CORE0_DATA 0x81 |
173 | #define PAACE_DID_CORE1_INST 0x82 |
174 | #define PAACE_DID_CORE1_DATA 0x83 |
175 | #define PAACE_DID_CORE2_INST 0x84 |
176 | #define PAACE_DID_CORE2_DATA 0x85 |
177 | #define PAACE_DID_CORE3_INST 0x86 |
178 | #define PAACE_DID_CORE3_DATA 0x87 |
179 | #define PAACE_DID_CORE4_INST 0x88 |
180 | #define PAACE_DID_CORE4_DATA 0x89 |
181 | #define PAACE_DID_CORE5_INST 0x8A |
182 | #define PAACE_DID_CORE5_DATA 0x8B |
183 | #define PAACE_DID_CORE6_INST 0x8C |
184 | #define PAACE_DID_CORE6_DATA 0x8D |
185 | #define PAACE_DID_CORE7_INST 0x8E |
186 | #define PAACE_DID_CORE7_DATA 0x8F |
187 | #define PAACE_DID_BROADCAST 0xFF |
188 | |
189 | #define PAACE_ATM_NO_XLATE 0x00 |
190 | #define PAACE_ATM_WINDOW_XLATE 0x01 |
191 | #define PAACE_ATM_PAGE_XLATE 0x02 |
192 | #define PAACE_ATM_WIN_PG_XLATE (PAACE_ATM_WINDOW_XLATE | PAACE_ATM_PAGE_XLATE) |
193 | #define PAACE_OTM_NO_XLATE 0x00 |
194 | #define PAACE_OTM_IMMEDIATE 0x01 |
195 | #define PAACE_OTM_INDEXED 0x02 |
196 | #define PAACE_OTM_RESERVED 0x03 |
197 | |
198 | #define PAACE_M_COHERENCE_REQ 0x01 |
199 | |
200 | #define PAACE_PID_0 0x0 |
201 | #define PAACE_PID_1 0x1 |
202 | #define PAACE_PID_2 0x2 |
203 | #define PAACE_PID_3 0x3 |
204 | #define PAACE_PID_4 0x4 |
205 | #define PAACE_PID_5 0x5 |
206 | #define PAACE_PID_6 0x6 |
207 | #define PAACE_PID_7 0x7 |
208 | |
209 | #define PAACE_TCEF_FORMAT0_8B 0x00 |
210 | #define PAACE_TCEF_FORMAT1_RSVD 0x01 |
211 | /* |
212 | * Hard coded value for the PAACT size to accommodate |
213 | * maximum LIODN value generated by u-boot. |
214 | */ |
215 | #define PAACE_NUMBER_ENTRIES 0x500 |
216 | /* Hard coded value for the SPAACT size */ |
217 | #define SPAACE_NUMBER_ENTRIES 0x800 |
218 | |
219 | #define OME_NUMBER_ENTRIES 16 |
220 | |
221 | /* PAACE Bit Field Defines */ |
222 | #define PPAACE_AF_WBAL 0xfffff000 |
223 | #define PPAACE_AF_WBAL_SHIFT 12 |
224 | #define PPAACE_AF_WSE 0x00000fc0 |
225 | #define PPAACE_AF_WSE_SHIFT 6 |
226 | #define PPAACE_AF_MW 0x00000020 |
227 | #define PPAACE_AF_MW_SHIFT 5 |
228 | |
229 | #define SPAACE_AF_LIODN 0xffff0000 |
230 | #define SPAACE_AF_LIODN_SHIFT 16 |
231 | |
232 | #define PAACE_AF_AP 0x00000018 |
233 | #define PAACE_AF_AP_SHIFT 3 |
234 | #define PAACE_AF_DD 0x00000004 |
235 | #define PAACE_AF_DD_SHIFT 2 |
236 | #define PAACE_AF_PT 0x00000002 |
237 | #define PAACE_AF_PT_SHIFT 1 |
238 | #define PAACE_AF_V 0x00000001 |
239 | #define PAACE_AF_V_SHIFT 0 |
240 | |
241 | #define PAACE_DA_HOST_CR 0x80 |
242 | #define PAACE_DA_HOST_CR_SHIFT 7 |
243 | |
244 | #define PAACE_IA_CID 0x00FF0000 |
245 | #define PAACE_IA_CID_SHIFT 16 |
246 | #define PAACE_IA_WCE 0x000000F0 |
247 | #define PAACE_IA_WCE_SHIFT 4 |
248 | #define PAACE_IA_ATM 0x0000000C |
249 | #define PAACE_IA_ATM_SHIFT 2 |
250 | #define PAACE_IA_OTM 0x00000003 |
251 | #define PAACE_IA_OTM_SHIFT 0 |
252 | |
253 | #define PAACE_WIN_TWBAL 0xfffff000 |
254 | #define PAACE_WIN_TWBAL_SHIFT 12 |
255 | #define PAACE_WIN_SWSE 0x00000fc0 |
256 | #define PAACE_WIN_SWSE_SHIFT 6 |
257 | |
258 | /* PAMU Data Structures */ |
259 | /* primary / secondary paact structure */ |
260 | struct paace { |
261 | /* PAACE Offset 0x00 */ |
262 | u32 wbah; /* only valid for Primary PAACE */ |
263 | u32 addr_bitfields; /* See P/S PAACE_AF_* */ |
264 | |
265 | /* PAACE Offset 0x08 */ |
266 | /* Interpretation of first 32 bits dependent on DD above */ |
267 | union { |
268 | struct { |
269 | /* Destination ID, see PAACE_DID_* defines */ |
270 | u8 did; |
271 | /* Partition ID */ |
272 | u8 pid; |
273 | /* Snoop ID */ |
274 | u8 snpid; |
275 | /* coherency_required : 1 reserved : 7 */ |
276 | u8 coherency_required; /* See PAACE_DA_* */ |
277 | } to_host; |
278 | struct { |
279 | /* Destination ID, see PAACE_DID_* defines */ |
280 | u8 did; |
281 | u8 reserved1; |
282 | u16 reserved2; |
283 | } to_io; |
284 | } domain_attr; |
285 | |
286 | /* Implementation attributes + window count + address & operation translation modes */ |
287 | u32 impl_attr; /* See PAACE_IA_* */ |
288 | |
289 | /* PAACE Offset 0x10 */ |
290 | /* Translated window base address */ |
291 | u32 twbah; |
292 | u32 win_bitfields; /* See PAACE_WIN_* */ |
293 | |
294 | /* PAACE Offset 0x18 */ |
295 | /* first secondary paace entry */ |
296 | u32 fspi; /* only valid for Primary PAACE */ |
297 | union { |
298 | struct { |
299 | u8 ioea; |
300 | u8 moea; |
301 | u8 ioeb; |
302 | u8 moeb; |
303 | } immed_ot; |
304 | struct { |
305 | u16 reserved; |
306 | u16 omi; |
307 | } index_ot; |
308 | } op_encode; |
309 | |
310 | /* PAACE Offsets 0x20-0x38 */ |
311 | u32 reserved[8]; /* not currently implemented */ |
312 | }; |
313 | |
314 | /* OME : Operation mapping entry |
315 | * MOE : Mapped Operation Encodings |
316 | * The operation mapping table is table containing operation mapping entries (OME). |
317 | * The index of a particular OME is programmed in the PAACE entry for translation |
318 | * in bound I/O operations corresponding to an LIODN. The OMT is used for translation |
319 | * specifically in case of the indexed translation mode. Each OME contains a 128 |
320 | * byte mapped operation encoding (MOE), where each byte represents an MOE. |
321 | */ |
322 | #define NUM_MOE 128 |
323 | struct ome { |
324 | u8 moe[NUM_MOE]; |
325 | } __packed; |
326 | |
327 | #define PAACT_SIZE (sizeof(struct paace) * PAACE_NUMBER_ENTRIES) |
328 | #define SPAACT_SIZE (sizeof(struct paace) * SPAACE_NUMBER_ENTRIES) |
329 | #define OMT_SIZE (sizeof(struct ome) * OME_NUMBER_ENTRIES) |
330 | |
331 | #define PAMU_PAGE_SHIFT 12 |
332 | #define PAMU_PAGE_SIZE 4096ULL |
333 | |
334 | #define IOE_READ 0x00 |
335 | #define IOE_READ_IDX 0x00 |
336 | #define IOE_WRITE 0x81 |
337 | #define IOE_WRITE_IDX 0x01 |
338 | #define IOE_EREAD0 0x82 /* Enhanced read type 0 */ |
339 | #define IOE_EREAD0_IDX 0x02 /* Enhanced read type 0 */ |
340 | #define IOE_EWRITE0 0x83 /* Enhanced write type 0 */ |
341 | #define IOE_EWRITE0_IDX 0x03 /* Enhanced write type 0 */ |
342 | #define IOE_DIRECT0 0x84 /* Directive type 0 */ |
343 | #define IOE_DIRECT0_IDX 0x04 /* Directive type 0 */ |
344 | #define IOE_EREAD1 0x85 /* Enhanced read type 1 */ |
345 | #define IOE_EREAD1_IDX 0x05 /* Enhanced read type 1 */ |
346 | #define IOE_EWRITE1 0x86 /* Enhanced write type 1 */ |
347 | #define IOE_EWRITE1_IDX 0x06 /* Enhanced write type 1 */ |
348 | #define IOE_DIRECT1 0x87 /* Directive type 1 */ |
349 | #define IOE_DIRECT1_IDX 0x07 /* Directive type 1 */ |
350 | #define IOE_RAC 0x8c /* Read with Atomic clear */ |
351 | #define IOE_RAC_IDX 0x0c /* Read with Atomic clear */ |
352 | #define IOE_RAS 0x8d /* Read with Atomic set */ |
353 | #define IOE_RAS_IDX 0x0d /* Read with Atomic set */ |
354 | #define IOE_RAD 0x8e /* Read with Atomic decrement */ |
355 | #define IOE_RAD_IDX 0x0e /* Read with Atomic decrement */ |
356 | #define IOE_RAI 0x8f /* Read with Atomic increment */ |
357 | #define IOE_RAI_IDX 0x0f /* Read with Atomic increment */ |
358 | |
359 | #define EOE_READ 0x00 |
360 | #define EOE_WRITE 0x01 |
361 | #define EOE_RAC 0x0c /* Read with Atomic clear */ |
362 | #define EOE_RAS 0x0d /* Read with Atomic set */ |
363 | #define EOE_RAD 0x0e /* Read with Atomic decrement */ |
364 | #define EOE_RAI 0x0f /* Read with Atomic increment */ |
365 | #define EOE_LDEC 0x10 /* Load external cache */ |
366 | #define EOE_LDECL 0x11 /* Load external cache with stash lock */ |
367 | #define EOE_LDECPE 0x12 /* Load external cache with preferred exclusive */ |
368 | #define EOE_LDECPEL 0x13 /* Load external cache with preferred exclusive and lock */ |
369 | #define EOE_LDECFE 0x14 /* Load external cache with forced exclusive */ |
370 | #define EOE_LDECFEL 0x15 /* Load external cache with forced exclusive and lock */ |
371 | #define EOE_RSA 0x16 /* Read with stash allocate */ |
372 | #define EOE_RSAU 0x17 /* Read with stash allocate and unlock */ |
373 | #define EOE_READI 0x18 /* Read with invalidate */ |
374 | #define EOE_RWNITC 0x19 /* Read with no intention to cache */ |
375 | #define EOE_WCI 0x1a /* Write cache inhibited */ |
376 | #define EOE_WWSA 0x1b /* Write with stash allocate */ |
377 | #define EOE_WWSAL 0x1c /* Write with stash allocate and lock */ |
378 | #define EOE_WWSAO 0x1d /* Write with stash allocate only */ |
379 | #define EOE_WWSAOL 0x1e /* Write with stash allocate only and lock */ |
380 | #define EOE_VALID 0x80 |
381 | |
382 | /* Function prototypes */ |
383 | int pamu_domain_init(void); |
384 | int pamu_enable_liodn(int liodn); |
385 | int pamu_disable_liodn(int liodn); |
386 | int pamu_config_ppaace(int liodn, u32 omi, uint32_t stashid, int prot); |
387 | |
388 | u32 get_stash_id(u32 stash_dest_hint, u32 vcpu); |
389 | void get_ome_index(u32 *omi_index, struct device *dev); |
390 | int pamu_update_paace_stash(int liodn, u32 value); |
391 | |
392 | #endif /* __FSL_PAMU_H */ |
393 | |