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1 /*
2 * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
3 * Author: Marc Zyngier <marc.zyngier@arm.com>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
19 #define __LINUX_IRQCHIP_ARM_GIC_V3_H
20
21 /*
22 * Distributor registers. We assume we're running non-secure, with ARE
23 * being set. Secure-only and non-ARE registers are not described.
24 */
25 #define GICD_CTLR 0x0000
26 #define GICD_TYPER 0x0004
27 #define GICD_IIDR 0x0008
28 #define GICD_STATUSR 0x0010
29 #define GICD_SETSPI_NSR 0x0040
30 #define GICD_CLRSPI_NSR 0x0048
31 #define GICD_SETSPI_SR 0x0050
32 #define GICD_CLRSPI_SR 0x0058
33 #define GICD_SEIR 0x0068
34 #define GICD_IGROUPR 0x0080
35 #define GICD_ISENABLER 0x0100
36 #define GICD_ICENABLER 0x0180
37 #define GICD_ISPENDR 0x0200
38 #define GICD_ICPENDR 0x0280
39 #define GICD_ISACTIVER 0x0300
40 #define GICD_ICACTIVER 0x0380
41 #define GICD_IPRIORITYR 0x0400
42 #define GICD_ICFGR 0x0C00
43 #define GICD_IGRPMODR 0x0D00
44 #define GICD_NSACR 0x0E00
45 #define GICD_IROUTER 0x6000
46 #define GICD_IDREGS 0xFFD0
47 #define GICD_PIDR2 0xFFE8
48
49 /*
50 * Those registers are actually from GICv2, but the spec demands that they
51 * are implemented as RES0 if ARE is 1 (which we do in KVM's emulated GICv3).
52 */
53 #define GICD_ITARGETSR 0x0800
54 #define GICD_SGIR 0x0F00
55 #define GICD_CPENDSGIR 0x0F10
56 #define GICD_SPENDSGIR 0x0F20
57
58 #define GICD_CTLR_RWP (1U << 31)
59 #define GICD_CTLR_DS (1U << 6)
60 #define GICD_CTLR_ARE_NS (1U << 4)
61 #define GICD_CTLR_ENABLE_G1A (1U << 1)
62 #define GICD_CTLR_ENABLE_G1 (1U << 0)
63
64 /*
65 * In systems with a single security state (what we emulate in KVM)
66 * the meaning of the interrupt group enable bits is slightly different
67 */
68 #define GICD_CTLR_ENABLE_SS_G1 (1U << 1)
69 #define GICD_CTLR_ENABLE_SS_G0 (1U << 0)
70
71 #define GICD_TYPER_LPIS (1U << 17)
72 #define GICD_TYPER_MBIS (1U << 16)
73
74 #define GICD_TYPER_ID_BITS(typer) ((((typer) >> 19) & 0x1f) + 1)
75 #define GICD_TYPER_IRQS(typer) ((((typer) & 0x1f) + 1) * 32)
76
77 #define GICD_IROUTER_SPI_MODE_ONE (0U << 31)
78 #define GICD_IROUTER_SPI_MODE_ANY (1U << 31)
79
80 #define GIC_PIDR2_ARCH_MASK 0xf0
81 #define GIC_PIDR2_ARCH_GICv3 0x30
82 #define GIC_PIDR2_ARCH_GICv4 0x40
83
84 #define GIC_V3_DIST_SIZE 0x10000
85
86 /*
87 * Re-Distributor registers, offsets from RD_base
88 */
89 #define GICR_CTLR GICD_CTLR
90 #define GICR_IIDR 0x0004
91 #define GICR_TYPER 0x0008
92 #define GICR_STATUSR GICD_STATUSR
93 #define GICR_WAKER 0x0014
94 #define GICR_SETLPIR 0x0040
95 #define GICR_CLRLPIR 0x0048
96 #define GICR_SEIR GICD_SEIR
97 #define GICR_PROPBASER 0x0070
98 #define GICR_PENDBASER 0x0078
99 #define GICR_INVLPIR 0x00A0
100 #define GICR_INVALLR 0x00B0
101 #define GICR_SYNCR 0x00C0
102 #define GICR_MOVLPIR 0x0100
103 #define GICR_MOVALLR 0x0110
104 #define GICR_IDREGS GICD_IDREGS
105 #define GICR_PIDR2 GICD_PIDR2
106
107 #define GICR_CTLR_ENABLE_LPIS (1UL << 0)
108
109 #define GICR_TYPER_CPU_NUMBER(r) (((r) >> 8) & 0xffff)
110
111 #define GICR_WAKER_ProcessorSleep (1U << 1)
112 #define GICR_WAKER_ChildrenAsleep (1U << 2)
113
114 #define GIC_BASER_CACHE_nCnB 0ULL
115 #define GIC_BASER_CACHE_SameAsInner 0ULL
116 #define GIC_BASER_CACHE_nC 1ULL
117 #define GIC_BASER_CACHE_RaWt 2ULL
118 #define GIC_BASER_CACHE_RaWb 3ULL
119 #define GIC_BASER_CACHE_WaWt 4ULL
120 #define GIC_BASER_CACHE_WaWb 5ULL
121 #define GIC_BASER_CACHE_RaWaWt 6ULL
122 #define GIC_BASER_CACHE_RaWaWb 7ULL
123 #define GIC_BASER_CACHE_MASK 7ULL
124 #define GIC_BASER_NonShareable 0ULL
125 #define GIC_BASER_InnerShareable 1ULL
126 #define GIC_BASER_OuterShareable 2ULL
127 #define GIC_BASER_SHAREABILITY_MASK 3ULL
128
129 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type) \
130 (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
131
132 #define GIC_BASER_SHAREABILITY(reg, type) \
133 (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
134
135 #define GICR_PROPBASER_SHAREABILITY_SHIFT (10)
136 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT (7)
137 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT (56)
138 #define GICR_PROPBASER_SHAREABILITY_MASK \
139 GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
140 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK \
141 GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
142 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK \
143 GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
144 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
145
146 #define GICR_PROPBASER_InnerShareable \
147 GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
148
149 #define GICR_PROPBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
150 #define GICR_PROPBASER_nC GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
151 #define GICR_PROPBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
152 #define GICR_PROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
153 #define GICR_PROPBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
154 #define GICR_PROPBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
155 #define GICR_PROPBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
156 #define GICR_PROPBASER_RaWaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
157
158 #define GICR_PROPBASER_IDBITS_MASK (0x1f)
159
160 #define GICR_PENDBASER_SHAREABILITY_SHIFT (10)
161 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT (7)
162 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT (56)
163 #define GICR_PENDBASER_SHAREABILITY_MASK \
164 GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
165 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK \
166 GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
167 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK \
168 GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
169 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
170
171 #define GICR_PENDBASER_InnerShareable \
172 GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
173
174 #define GICR_PENDBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
175 #define GICR_PENDBASER_nC GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
176 #define GICR_PENDBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
177 #define GICR_PENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
178 #define GICR_PENDBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
179 #define GICR_PENDBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
180 #define GICR_PENDBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
181 #define GICR_PENDBASER_RaWaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
182
183 #define GICR_PENDBASER_PTZ BIT_ULL(62)
184
185 /*
186 * Re-Distributor registers, offsets from SGI_base
187 */
188 #define GICR_IGROUPR0 GICD_IGROUPR
189 #define GICR_ISENABLER0 GICD_ISENABLER
190 #define GICR_ICENABLER0 GICD_ICENABLER
191 #define GICR_ISPENDR0 GICD_ISPENDR
192 #define GICR_ICPENDR0 GICD_ICPENDR
193 #define GICR_ISACTIVER0 GICD_ISACTIVER
194 #define GICR_ICACTIVER0 GICD_ICACTIVER
195 #define GICR_IPRIORITYR0 GICD_IPRIORITYR
196 #define GICR_ICFGR0 GICD_ICFGR
197 #define GICR_IGRPMODR0 GICD_IGRPMODR
198 #define GICR_NSACR GICD_NSACR
199
200 #define GICR_TYPER_PLPIS (1U << 0)
201 #define GICR_TYPER_VLPIS (1U << 1)
202 #define GICR_TYPER_LAST (1U << 4)
203
204 #define GIC_V3_REDIST_SIZE 0x20000
205
206 #define LPI_PROP_GROUP1 (1 << 1)
207 #define LPI_PROP_ENABLED (1 << 0)
208
209 /*
210 * ITS registers, offsets from ITS_base
211 */
212 #define GITS_CTLR 0x0000
213 #define GITS_IIDR 0x0004
214 #define GITS_TYPER 0x0008
215 #define GITS_CBASER 0x0080
216 #define GITS_CWRITER 0x0088
217 #define GITS_CREADR 0x0090
218 #define GITS_BASER 0x0100
219 #define GITS_IDREGS_BASE 0xffd0
220 #define GITS_PIDR0 0xffe0
221 #define GITS_PIDR1 0xffe4
222 #define GITS_PIDR2 GICR_PIDR2
223 #define GITS_PIDR4 0xffd0
224 #define GITS_CIDR0 0xfff0
225 #define GITS_CIDR1 0xfff4
226 #define GITS_CIDR2 0xfff8
227 #define GITS_CIDR3 0xfffc
228
229 #define GITS_TRANSLATER 0x10040
230
231 #define GITS_CTLR_ENABLE (1U << 0)
232 #define GITS_CTLR_QUIESCENT (1U << 31)
233
234 #define GITS_TYPER_PLPIS (1UL << 0)
235 #define GITS_TYPER_IDBITS_SHIFT 8
236 #define GITS_TYPER_DEVBITS_SHIFT 13
237 #define GITS_TYPER_DEVBITS(r) ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
238 #define GITS_TYPER_PTA (1UL << 19)
239 #define GITS_TYPER_HWCOLLCNT_SHIFT 24
240
241 #define GITS_CBASER_VALID (1ULL << 63)
242 #define GITS_CBASER_SHAREABILITY_SHIFT (10)
243 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT (59)
244 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT (53)
245 #define GITS_CBASER_SHAREABILITY_MASK \
246 GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
247 #define GITS_CBASER_INNER_CACHEABILITY_MASK \
248 GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
249 #define GITS_CBASER_OUTER_CACHEABILITY_MASK \
250 GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
251 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
252
253 #define GITS_CBASER_InnerShareable \
254 GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
255
256 #define GITS_CBASER_nCnB GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
257 #define GITS_CBASER_nC GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
258 #define GITS_CBASER_RaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
259 #define GITS_CBASER_RaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
260 #define GITS_CBASER_WaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
261 #define GITS_CBASER_WaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
262 #define GITS_CBASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
263 #define GITS_CBASER_RaWaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
264
265 #define GITS_BASER_NR_REGS 8
266
267 #define GITS_BASER_VALID (1ULL << 63)
268 #define GITS_BASER_INDIRECT (1ULL << 62)
269
270 #define GITS_BASER_INNER_CACHEABILITY_SHIFT (59)
271 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT (53)
272 #define GITS_BASER_INNER_CACHEABILITY_MASK \
273 GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
274 #define GITS_BASER_CACHEABILITY_MASK GITS_BASER_INNER_CACHEABILITY_MASK
275 #define GITS_BASER_OUTER_CACHEABILITY_MASK \
276 GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
277 #define GITS_BASER_SHAREABILITY_MASK \
278 GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
279
280 #define GITS_BASER_nCnB GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
281 #define GITS_BASER_nC GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
282 #define GITS_BASER_RaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
283 #define GITS_BASER_RaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
284 #define GITS_BASER_WaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
285 #define GITS_BASER_WaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
286 #define GITS_BASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
287 #define GITS_BASER_RaWaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
288
289 #define GITS_BASER_TYPE_SHIFT (56)
290 #define GITS_BASER_TYPE(r) (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
291 #define GITS_BASER_ENTRY_SIZE_SHIFT (48)
292 #define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
293 #define GITS_BASER_SHAREABILITY_SHIFT (10)
294 #define GITS_BASER_InnerShareable \
295 GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
296 #define GITS_BASER_PAGE_SIZE_SHIFT (8)
297 #define GITS_BASER_PAGE_SIZE_4K (0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
298 #define GITS_BASER_PAGE_SIZE_16K (1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
299 #define GITS_BASER_PAGE_SIZE_64K (2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
300 #define GITS_BASER_PAGE_SIZE_MASK (3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
301 #define GITS_BASER_PAGES_MAX 256
302 #define GITS_BASER_PAGES_SHIFT (0)
303 #define GITS_BASER_NR_PAGES(r) (((r) & 0xff) + 1)
304
305 #define GITS_BASER_TYPE_NONE 0
306 #define GITS_BASER_TYPE_DEVICE 1
307 #define GITS_BASER_TYPE_VCPU 2
308 #define GITS_BASER_TYPE_RESERVED3 3
309 #define GITS_BASER_TYPE_COLLECTION 4
310 #define GITS_BASER_TYPE_RESERVED5 5
311 #define GITS_BASER_TYPE_RESERVED6 6
312 #define GITS_BASER_TYPE_RESERVED7 7
313
314 #define GITS_LVL1_ENTRY_SIZE (8UL)
315
316 /*
317 * ITS commands
318 */
319 #define GITS_CMD_MAPD 0x08
320 #define GITS_CMD_MAPC 0x09
321 #define GITS_CMD_MAPTI 0x0a
322 #define GITS_CMD_MAPI 0x0b
323 #define GITS_CMD_MOVI 0x01
324 #define GITS_CMD_DISCARD 0x0f
325 #define GITS_CMD_INV 0x0c
326 #define GITS_CMD_MOVALL 0x0e
327 #define GITS_CMD_INVALL 0x0d
328 #define GITS_CMD_INT 0x03
329 #define GITS_CMD_CLEAR 0x04
330 #define GITS_CMD_SYNC 0x05
331
332 /*
333 * ITS error numbers
334 */
335 #define E_ITS_MOVI_UNMAPPED_INTERRUPT 0x010107
336 #define E_ITS_MOVI_UNMAPPED_COLLECTION 0x010109
337 #define E_ITS_INT_UNMAPPED_INTERRUPT 0x010307
338 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT 0x010507
339 #define E_ITS_MAPD_DEVICE_OOR 0x010801
340 #define E_ITS_MAPC_PROCNUM_OOR 0x010902
341 #define E_ITS_MAPC_COLLECTION_OOR 0x010903
342 #define E_ITS_MAPTI_UNMAPPED_DEVICE 0x010a04
343 #define E_ITS_MAPTI_PHYSICALID_OOR 0x010a06
344 #define E_ITS_INV_UNMAPPED_INTERRUPT 0x010c07
345 #define E_ITS_INVALL_UNMAPPED_COLLECTION 0x010d09
346 #define E_ITS_MOVALL_PROCNUM_OOR 0x010e01
347 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT 0x010f07
348
349 /*
350 * CPU interface registers
351 */
352 #define ICC_CTLR_EL1_EOImode_SHIFT (1)
353 #define ICC_CTLR_EL1_EOImode_drop_dir (0U << ICC_CTLR_EL1_EOImode_SHIFT)
354 #define ICC_CTLR_EL1_EOImode_drop (1U << ICC_CTLR_EL1_EOImode_SHIFT)
355 #define ICC_CTLR_EL1_EOImode_MASK (1 << ICC_CTLR_EL1_EOImode_SHIFT)
356 #define ICC_CTLR_EL1_CBPR_SHIFT 0
357 #define ICC_CTLR_EL1_CBPR_MASK (1 << ICC_CTLR_EL1_CBPR_SHIFT)
358 #define ICC_CTLR_EL1_PRI_BITS_SHIFT 8
359 #define ICC_CTLR_EL1_PRI_BITS_MASK (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
360 #define ICC_CTLR_EL1_ID_BITS_SHIFT 11
361 #define ICC_CTLR_EL1_ID_BITS_MASK (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
362 #define ICC_CTLR_EL1_SEIS_SHIFT 14
363 #define ICC_CTLR_EL1_SEIS_MASK (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
364 #define ICC_CTLR_EL1_A3V_SHIFT 15
365 #define ICC_CTLR_EL1_A3V_MASK (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
366 #define ICC_PMR_EL1_SHIFT 0
367 #define ICC_PMR_EL1_MASK (0xff << ICC_PMR_EL1_SHIFT)
368 #define ICC_BPR0_EL1_SHIFT 0
369 #define ICC_BPR0_EL1_MASK (0x7 << ICC_BPR0_EL1_SHIFT)
370 #define ICC_BPR1_EL1_SHIFT 0
371 #define ICC_BPR1_EL1_MASK (0x7 << ICC_BPR1_EL1_SHIFT)
372 #define ICC_IGRPEN0_EL1_SHIFT 0
373 #define ICC_IGRPEN0_EL1_MASK (1 << ICC_IGRPEN0_EL1_SHIFT)
374 #define ICC_IGRPEN1_EL1_SHIFT 0
375 #define ICC_IGRPEN1_EL1_MASK (1 << ICC_IGRPEN1_EL1_SHIFT)
376 #define ICC_SRE_EL1_SRE (1U << 0)
377
378 /*
379 * Hypervisor interface registers (SRE only)
380 */
381 #define ICH_LR_VIRTUAL_ID_MASK ((1ULL << 32) - 1)
382
383 #define ICH_LR_EOI (1ULL << 41)
384 #define ICH_LR_GROUP (1ULL << 60)
385 #define ICH_LR_HW (1ULL << 61)
386 #define ICH_LR_STATE (3ULL << 62)
387 #define ICH_LR_PENDING_BIT (1ULL << 62)
388 #define ICH_LR_ACTIVE_BIT (1ULL << 63)
389 #define ICH_LR_PHYS_ID_SHIFT 32
390 #define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
391 #define ICH_LR_PRIORITY_SHIFT 48
392
393 /* These are for GICv2 emulation only */
394 #define GICH_LR_VIRTUALID (0x3ffUL << 0)
395 #define GICH_LR_PHYSID_CPUID_SHIFT (10)
396 #define GICH_LR_PHYSID_CPUID (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
397
398 #define ICH_MISR_EOI (1 << 0)
399 #define ICH_MISR_U (1 << 1)
400
401 #define ICH_HCR_EN (1 << 0)
402 #define ICH_HCR_UIE (1 << 1)
403
404 #define ICH_VMCR_CBPR_SHIFT 4
405 #define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT)
406 #define ICH_VMCR_EOIM_SHIFT 9
407 #define ICH_VMCR_EOIM_MASK (1 << ICH_VMCR_EOIM_SHIFT)
408 #define ICH_VMCR_BPR1_SHIFT 18
409 #define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT)
410 #define ICH_VMCR_BPR0_SHIFT 21
411 #define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT)
412 #define ICH_VMCR_PMR_SHIFT 24
413 #define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT)
414 #define ICH_VMCR_ENG0_SHIFT 0
415 #define ICH_VMCR_ENG0_MASK (1 << ICH_VMCR_ENG0_SHIFT)
416 #define ICH_VMCR_ENG1_SHIFT 1
417 #define ICH_VMCR_ENG1_MASK (1 << ICH_VMCR_ENG1_SHIFT)
418
419 #define ICH_VTR_PRI_BITS_SHIFT 29
420 #define ICH_VTR_PRI_BITS_MASK (7 << ICH_VTR_PRI_BITS_SHIFT)
421 #define ICH_VTR_ID_BITS_SHIFT 23
422 #define ICH_VTR_ID_BITS_MASK (7 << ICH_VTR_ID_BITS_SHIFT)
423 #define ICH_VTR_SEIS_SHIFT 22
424 #define ICH_VTR_SEIS_MASK (1 << ICH_VTR_SEIS_SHIFT)
425 #define ICH_VTR_A3V_SHIFT 21
426 #define ICH_VTR_A3V_MASK (1 << ICH_VTR_A3V_SHIFT)
427
428 #define ICC_IAR1_EL1_SPURIOUS 0x3ff
429
430 #define ICC_SRE_EL2_SRE (1 << 0)
431 #define ICC_SRE_EL2_ENABLE (1 << 3)
432
433 #define ICC_SGI1R_TARGET_LIST_SHIFT 0
434 #define ICC_SGI1R_TARGET_LIST_MASK (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
435 #define ICC_SGI1R_AFFINITY_1_SHIFT 16
436 #define ICC_SGI1R_AFFINITY_1_MASK (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
437 #define ICC_SGI1R_SGI_ID_SHIFT 24
438 #define ICC_SGI1R_SGI_ID_MASK (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
439 #define ICC_SGI1R_AFFINITY_2_SHIFT 32
440 #define ICC_SGI1R_AFFINITY_2_MASK (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
441 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT 40
442 #define ICC_SGI1R_AFFINITY_3_SHIFT 48
443 #define ICC_SGI1R_AFFINITY_3_MASK (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
444
445 #include <asm/arch_gicv3.h>
446
447 #ifndef __ASSEMBLY__
448
449 /*
450 * We need a value to serve as a irq-type for LPIs. Choose one that will
451 * hopefully pique the interest of the reviewer.
452 */
453 #define GIC_IRQ_TYPE_LPI 0xa110c8ed
454
455 struct rdists {
456 struct {
457 void __iomem *rd_base;
458 struct page *pend_page;
459 phys_addr_t phys_base;
460 } __percpu *rdist;
461 struct page *prop_page;
462 int id_bits;
463 u64 flags;
464 };
465
466 struct irq_domain;
467 struct fwnode_handle;
468 int its_cpu_init(void);
469 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
470 struct irq_domain *domain);
471
472 static inline bool gic_enable_sre(void)
473 {
474 u32 val;
475
476 val = gic_read_sre();
477 if (val & ICC_SRE_EL1_SRE)
478 return true;
479
480 val |= ICC_SRE_EL1_SRE;
481 gic_write_sre(val);
482 val = gic_read_sre();
483
484 return !!(val & ICC_SRE_EL1_SRE);
485 }
486
487 #endif
488
489 #endif