1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (C) 2013 Freescale Semiconductor, Inc.
10 #include <linux/iommu.h>
11 #include <linux/pci.h>
13 #include <asm/fsl_pamu_stash.h>
16 * v = bit field variable; m = mask, m##_SHIFT = shift, x = value to load
18 #define set_bf(v, m, x) (v = ((v) & ~(m)) | (((x) << m##_SHIFT) & (m)))
19 #define get_bf(v, m) (((v) & (m)) >> m##_SHIFT)
22 #define PAMU_PGC 0x00000000 /* Allows all peripheral accesses */
23 #define PAMU_PE 0x40000000 /* enable PAMU */
25 /* PAMU_OFFSET to the next pamu space in ccsr */
26 #define PAMU_OFFSET 0x1000
28 #define PAMU_MMAP_REGS_BASE 0
30 struct pamu_mmap_regs {
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
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
78 /* PAMU Revision Registers */
79 #define PAMU_PR1 0x0BF8
80 #define PAMU_PR2 0x0BFC
82 /* PAMU version mask */
83 #define PAMU_PR1_MASK 0xffff
85 /* PAMU Capabilities Registers */
86 #define PAMU_PC1 0x0C00
87 #define PAMU_PC2 0x0C04
88 #define PAMU_PC3 0x0C08
89 #define PAMU_PC4 0x0C0C
91 /* PAMU Control Register */
92 #define PAMU_PC 0x0C10
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 */
102 #define PAMU_PFA1 0x0C14
103 #define PAMU_PFA2 0x0C18
105 #define PAMU_PC2_MLIODN(X) ((X) >> 16)
106 #define PAMU_PC3_MWCE(X) (((X) >> 21) & 0xf)
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
113 /* PAMU Debug Registers */
114 #define PAMU_PD1 0x0F00
115 #define PAMU_PD2 0x0F04
116 #define PAMU_PD3 0x0F08
117 #define PAMU_PD4 0x0F0C
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
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
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
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
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
198 #define PAACE_M_COHERENCE_REQ 0x01
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
209 #define PAACE_TCEF_FORMAT0_8B 0x00
210 #define PAACE_TCEF_FORMAT1_RSVD 0x01
212 * Hard coded value for the PAACT size to accommodate
213 * maximum LIODN value generated by u-boot.
215 #define PAACE_NUMBER_ENTRIES 0x500
216 /* Hard coded value for the SPAACT size */
217 #define SPAACE_NUMBER_ENTRIES 0x800
219 #define OME_NUMBER_ENTRIES 16
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
229 #define SPAACE_AF_LIODN 0xffff0000
230 #define SPAACE_AF_LIODN_SHIFT 16
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
241 #define PAACE_DA_HOST_CR 0x80
242 #define PAACE_DA_HOST_CR_SHIFT 7
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
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
258 /* PAMU Data Structures */
259 /* primary / secondary paact structure */
261 /* PAACE Offset 0x00 */
262 u32 wbah; /* only valid for Primary PAACE */
263 u32 addr_bitfields; /* See P/S PAACE_AF_* */
265 /* PAACE Offset 0x08 */
266 /* Interpretation of first 32 bits dependent on DD above */
269 /* Destination ID, see PAACE_DID_* defines */
275 /* coherency_required : 1 reserved : 7 */
276 u8 coherency_required; /* See PAACE_DA_* */
279 /* Destination ID, see PAACE_DID_* defines */
286 /* Implementation attributes + window count + address & operation translation modes */
287 u32 impl_attr; /* See PAACE_IA_* */
289 /* PAACE Offset 0x10 */
290 /* Translated window base address */
292 u32 win_bitfields; /* See PAACE_WIN_* */
294 /* PAACE Offset 0x18 */
295 /* first secondary paace entry */
296 u32 fspi; /* only valid for Primary PAACE */
310 /* PAACE Offsets 0x20-0x38 */
311 u32 reserved[8]; /* not currently implemented */
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.
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)
331 #define PAMU_PAGE_SHIFT 12
332 #define PAMU_PAGE_SIZE 4096ULL
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 */
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
382 /* Function prototypes */
383 int pamu_domain_init(void);
384 int pamu_enable_liodn(int liodn);
385 int pamu_disable_liodn(int liodn);
386 void pamu_free_subwins(int liodn);
387 int pamu_config_ppaace(int liodn, phys_addr_t win_addr, phys_addr_t win_size,
388 u32 omi, unsigned long rpn, u32 snoopid, uint32_t stashid,
389 u32 subwin_cnt, int prot);
390 int pamu_config_spaace(int liodn, u32 subwin_cnt, u32 subwin_addr,
391 phys_addr_t subwin_size, u32 omi, unsigned long rpn,
392 uint32_t snoopid, u32 stashid, int enable, int prot);
394 u32 get_stash_id(u32 stash_dest_hint, u32 vcpu);
395 void get_ome_index(u32 *omi_index, struct device *dev);
396 int pamu_update_paace_stash(int liodn, u32 subwin, u32 value);
397 int pamu_disable_spaace(int liodn, u32 subwin);
398 u32 pamu_get_max_subwin_cnt(void);
400 #endif /* __FSL_PAMU_H */