1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/iommu/arm,s 4 $id: http://devicetree.org/schemas/iommu/arm,smmu.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: ARM System MMU Architecture Implementat 7 title: ARM System MMU Architecture Implementation
8 8
9 maintainers: 9 maintainers:
10 - Will Deacon <will@kernel.org> 10 - Will Deacon <will@kernel.org>
11 - Robin Murphy <Robin.Murphy@arm.com> 11 - Robin Murphy <Robin.Murphy@arm.com>
12 12
13 description: |+ 13 description: |+
14 ARM SoCs may contain an implementation of th 14 ARM SoCs may contain an implementation of the ARM System Memory
15 Management Unit Architecture, which can be u 15 Management Unit Architecture, which can be used to provide 1 or 2 stages
16 of address translation to bus masters extern 16 of address translation to bus masters external to the CPU.
17 17
18 The SMMU may also raise interrupts in respon 18 The SMMU may also raise interrupts in response to various fault
19 conditions. 19 conditions.
20 20
21 properties: 21 properties:
22 $nodename: 22 $nodename:
23 pattern: "^iommu@[0-9a-f]*" 23 pattern: "^iommu@[0-9a-f]*"
24 compatible: 24 compatible:
25 oneOf: 25 oneOf:
26 - description: Qcom SoCs implementing "a 26 - description: Qcom SoCs implementing "arm,smmu-v2"
27 items: 27 items:
28 - enum: 28 - enum:
29 - qcom,msm8996-smmu-v2 29 - qcom,msm8996-smmu-v2
30 - qcom,msm8998-smmu-v2 30 - qcom,msm8998-smmu-v2
31 - qcom,sdm630-smmu-v2 <<
32 - qcom,sm6375-smmu-v2 <<
33 - const: qcom,smmu-v2 31 - const: qcom,smmu-v2
34 32
35 - description: Qcom SoCs implementing "q !! 33 - description: Qcom SoCs implementing "arm,mmu-500"
36 items: 34 items:
37 - enum: 35 - enum:
38 - qcom,qcm2290-smmu-500 36 - qcom,qcm2290-smmu-500
39 - qcom,qcs8300-smmu-500 <<
40 - qcom,qdu1000-smmu-500 <<
41 - qcom,sa8255p-smmu-500 <<
42 - qcom,sa8775p-smmu-500 <<
43 - qcom,sc7180-smmu-500 37 - qcom,sc7180-smmu-500
44 - qcom,sc7280-smmu-500 38 - qcom,sc7280-smmu-500
45 - qcom,sc8180x-smmu-500 39 - qcom,sc8180x-smmu-500
46 - qcom,sc8280xp-smmu-500 40 - qcom,sc8280xp-smmu-500
47 - qcom,sdm670-smmu-500 <<
48 - qcom,sdm845-smmu-500 41 - qcom,sdm845-smmu-500
49 - qcom,sdx55-smmu-500 42 - qcom,sdx55-smmu-500
50 - qcom,sdx65-smmu-500 43 - qcom,sdx65-smmu-500
51 - qcom,sdx75-smmu-500 <<
52 - qcom,sm6115-smmu-500 <<
53 - qcom,sm6125-smmu-500 <<
54 - qcom,sm6350-smmu-500 44 - qcom,sm6350-smmu-500
55 - qcom,sm6375-smmu-500 45 - qcom,sm6375-smmu-500
56 - qcom,sm8150-smmu-500 46 - qcom,sm8150-smmu-500
57 - qcom,sm8250-smmu-500 47 - qcom,sm8250-smmu-500
58 - qcom,sm8350-smmu-500 48 - qcom,sm8350-smmu-500
59 - qcom,sm8450-smmu-500 49 - qcom,sm8450-smmu-500
60 - qcom,sm8550-smmu-500 <<
61 - qcom,sm8650-smmu-500 <<
62 - qcom,x1e80100-smmu-500 <<
63 - const: qcom,smmu-500 <<
64 - const: arm,mmu-500 <<
65 <<
66 - description: Qcom SoCs implementing "a <<
67 deprecated: true <<
68 items: <<
69 # Do not add additional SoC to this <<
70 - enum: <<
71 - qcom,qcm2290-smmu-500 <<
72 - qcom,sc7180-smmu-500 <<
73 - qcom,sc7280-smmu-500 <<
74 - qcom,sc8180x-smmu-500 <<
75 - qcom,sc8280xp-smmu-500 <<
76 - qcom,sdm845-smmu-500 <<
77 - qcom,sm6115-smmu-500 <<
78 - qcom,sm6350-smmu-500 <<
79 - qcom,sm6375-smmu-500 <<
80 - qcom,sm8150-smmu-500 <<
81 - qcom,sm8250-smmu-500 <<
82 - qcom,sm8350-smmu-500 <<
83 - qcom,sm8450-smmu-500 <<
84 - const: arm,mmu-500 <<
85 - description: Qcom Adreno GPUs implemen <<
86 items: <<
87 - enum: <<
88 - qcom,qcm2290-smmu-500 <<
89 - qcom,sa8255p-smmu-500 <<
90 - qcom,sa8775p-smmu-500 <<
91 - qcom,sc7280-smmu-500 <<
92 - qcom,sc8180x-smmu-500 <<
93 - qcom,sc8280xp-smmu-500 <<
94 - qcom,sm6115-smmu-500 <<
95 - qcom,sm6125-smmu-500 <<
96 - qcom,sm8150-smmu-500 <<
97 - qcom,sm8250-smmu-500 <<
98 - qcom,sm8350-smmu-500 <<
99 - qcom,sm8450-smmu-500 <<
100 - qcom,sm8550-smmu-500 <<
101 - qcom,sm8650-smmu-500 <<
102 - qcom,x1e80100-smmu-500 <<
103 - const: qcom,adreno-smmu <<
104 - const: qcom,smmu-500 <<
105 - const: arm,mmu-500 <<
106 - description: Qcom Adreno GPUs implemen <<
107 deprecated: true <<
108 items: <<
109 # Do not add additional SoC to this <<
110 - enum: <<
111 - qcom,sc7280-smmu-500 <<
112 - qcom,sm8150-smmu-500 <<
113 - qcom,sm8250-smmu-500 <<
114 - const: qcom,adreno-smmu <<
115 - const: arm,mmu-500 50 - const: arm,mmu-500
116 - description: Qcom Adreno GPUs implemen 51 - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
117 items: 52 items:
118 - enum: 53 - enum:
119 - qcom,msm8996-smmu-v2 <<
120 - qcom,sc7180-smmu-v2 54 - qcom,sc7180-smmu-v2
121 - qcom,sdm630-smmu-v2 <<
122 - qcom,sdm845-smmu-v2 55 - qcom,sdm845-smmu-v2
123 - qcom,sm6350-smmu-v2 <<
124 - qcom,sm7150-smmu-v2 <<
125 - const: qcom,adreno-smmu 56 - const: qcom,adreno-smmu
126 - const: qcom,smmu-v2 57 - const: qcom,smmu-v2
127 - description: Qcom Adreno GPUs on Googl <<
128 items: <<
129 - const: qcom,sdm845-smmu-v2 <<
130 - const: qcom,smmu-v2 <<
131 - description: Marvell SoCs implementing 58 - description: Marvell SoCs implementing "arm,mmu-500"
132 items: 59 items:
133 - const: marvell,ap806-smmu-500 60 - const: marvell,ap806-smmu-500
134 - const: arm,mmu-500 61 - const: arm,mmu-500
135 - description: NVIDIA SoCs that require 62 - description: NVIDIA SoCs that require memory controller interaction
136 and may program multiple ARM MMU-500 63 and may program multiple ARM MMU-500s identically with the memory
137 controller interleaving translations 64 controller interleaving translations between multiple instances
138 for improved performance. 65 for improved performance.
139 items: 66 items:
140 - enum: 67 - enum:
141 - nvidia,tegra186-smmu 68 - nvidia,tegra186-smmu
142 - nvidia,tegra194-smmu 69 - nvidia,tegra194-smmu
143 - nvidia,tegra234-smmu 70 - nvidia,tegra234-smmu
144 - const: nvidia,smmu-500 71 - const: nvidia,smmu-500
145 - items: 72 - items:
146 - const: arm,mmu-500 73 - const: arm,mmu-500
147 - const: arm,smmu-v2 74 - const: arm,smmu-v2
148 - items: 75 - items:
149 - enum: 76 - enum:
150 - arm,mmu-400 77 - arm,mmu-400
151 - arm,mmu-401 78 - arm,mmu-401
152 - const: arm,smmu-v1 79 - const: arm,smmu-v1
153 - enum: 80 - enum:
154 - arm,smmu-v1 81 - arm,smmu-v1
155 - arm,smmu-v2 82 - arm,smmu-v2
156 - arm,mmu-400 83 - arm,mmu-400
157 - arm,mmu-401 84 - arm,mmu-401
158 - arm,mmu-500 85 - arm,mmu-500
159 - cavium,smmu-v2 86 - cavium,smmu-v2
160 87
161 reg: 88 reg:
162 minItems: 1 89 minItems: 1
163 maxItems: 2 90 maxItems: 2
164 91
165 '#global-interrupts': 92 '#global-interrupts':
166 description: The number of global interrup 93 description: The number of global interrupts exposed by the device.
167 $ref: /schemas/types.yaml#/definitions/uin 94 $ref: /schemas/types.yaml#/definitions/uint32
168 minimum: 0 95 minimum: 0
169 maximum: 260 # 2 secure, 2 non-secure, a 96 maximum: 260 # 2 secure, 2 non-secure, and up to 256 perf counters
170 97
171 '#iommu-cells': 98 '#iommu-cells':
172 enum: [ 1, 2 ] 99 enum: [ 1, 2 ]
173 description: | 100 description: |
174 See Documentation/devicetree/bindings/io 101 See Documentation/devicetree/bindings/iommu/iommu.txt for details. With a
175 value of 1, each IOMMU specifier represe 102 value of 1, each IOMMU specifier represents a distinct stream ID emitted
176 by that device into the relevant SMMU. 103 by that device into the relevant SMMU.
177 104
178 SMMUs with stream matching support and c 105 SMMUs with stream matching support and complex masters may use a value of
179 2, where the second cell of the IOMMU sp 106 2, where the second cell of the IOMMU specifier represents an SMR mask to
180 combine with the ID in the first cell. 107 combine with the ID in the first cell. Care must be taken to ensure the
181 set of matched IDs does not result in co 108 set of matched IDs does not result in conflicts.
182 109
183 interrupts: 110 interrupts:
184 minItems: 1 111 minItems: 1
185 maxItems: 388 # 260 plus 128 contexts 112 maxItems: 388 # 260 plus 128 contexts
186 description: | 113 description: |
187 Interrupt list, with the first #global-i 114 Interrupt list, with the first #global-interrupts entries corresponding to
188 the global interrupts and any following 115 the global interrupts and any following entries corresponding to context
189 interrupts, specified in order of their 116 interrupts, specified in order of their indexing by the SMMU.
190 117
191 For SMMUv2 implementations, there must b 118 For SMMUv2 implementations, there must be exactly one interrupt per
192 context bank. In the case of a single, c 119 context bank. In the case of a single, combined interrupt, it must be
193 listed multiple times. 120 listed multiple times.
194 121
195 dma-coherent: 122 dma-coherent:
196 description: | 123 description: |
197 Present if page table walks made by the 124 Present if page table walks made by the SMMU are cache coherent with the
198 CPU. 125 CPU.
199 126
200 NOTE: this only applies to the SMMU itse 127 NOTE: this only applies to the SMMU itself, not masters connected
201 upstream of the SMMU. 128 upstream of the SMMU.
202 129
203 calxeda,smmu-secure-config-access: 130 calxeda,smmu-secure-config-access:
204 type: boolean 131 type: boolean
205 description: 132 description:
206 Enable proper handling of buggy implemen 133 Enable proper handling of buggy implementations that always use secure
207 access to SMMU configuration registers. 134 access to SMMU configuration registers. In this case non-secure aliases of
208 secure registers have to be used during 135 secure registers have to be used during SMMU configuration.
209 136
210 stream-match-mask: 137 stream-match-mask:
211 $ref: /schemas/types.yaml#/definitions/uin 138 $ref: /schemas/types.yaml#/definitions/uint32
212 description: | 139 description: |
213 For SMMUs supporting stream matching and 140 For SMMUs supporting stream matching and using #iommu-cells = <1>,
214 specifies a mask of bits to ignore when 141 specifies a mask of bits to ignore when matching stream IDs (e.g. this may
215 be programmed into the SMRn.MASK field o 142 be programmed into the SMRn.MASK field of every stream match register
216 used). For cases where it is desirable t 143 used). For cases where it is desirable to ignore some portion of every
217 Stream ID (e.g. for certain MMU-500 conf 144 Stream ID (e.g. for certain MMU-500 configurations given globally unique
218 input IDs). This property is not valid f 145 input IDs). This property is not valid for SMMUs using stream indexing, or
219 using stream matching with #iommu-cells 146 using stream matching with #iommu-cells = <2>, and may be ignored if
220 present in such cases. 147 present in such cases.
221 148
222 clock-names: 149 clock-names:
223 minItems: 1 !! 150 items:
224 maxItems: 7 !! 151 - const: bus
>> 152 - const: iface
225 153
226 clocks: 154 clocks:
227 minItems: 1 !! 155 items:
228 maxItems: 7 !! 156 - description: bus clock required for downstream bus access and for the
>> 157 smmu ptw
>> 158 - description: interface clock required to access smmu's registers
>> 159 through the TCU's programming interface.
229 160
230 power-domains: 161 power-domains:
231 minItems: 1 !! 162 maxItems: 1
232 maxItems: 3 <<
233 163
234 nvidia,memory-controller: 164 nvidia,memory-controller:
235 description: | 165 description: |
236 A phandle to the memory controller on NV 166 A phandle to the memory controller on NVIDIA Tegra186 and later SoCs.
237 The memory controller needs to be progra 167 The memory controller needs to be programmed with a mapping of memory
238 client IDs to ARM SMMU stream IDs. 168 client IDs to ARM SMMU stream IDs.
239 169
240 If this property is absent, the mapping 170 If this property is absent, the mapping programmed by early firmware
241 will be used and it is not guaranteed th 171 will be used and it is not guaranteed that IOMMU translations will be
242 enabled for any given device. 172 enabled for any given device.
243 $ref: /schemas/types.yaml#/definitions/pha 173 $ref: /schemas/types.yaml#/definitions/phandle
244 174
245 required: 175 required:
246 - compatible 176 - compatible
247 - reg 177 - reg
248 - '#global-interrupts' 178 - '#global-interrupts'
249 - '#iommu-cells' 179 - '#iommu-cells'
250 - interrupts 180 - interrupts
251 181
252 additionalProperties: false 182 additionalProperties: false
253 183
254 allOf: 184 allOf:
255 - if: 185 - if:
256 properties: 186 properties:
257 compatible: 187 compatible:
258 contains: 188 contains:
259 enum: 189 enum:
260 - nvidia,tegra186-smmu 190 - nvidia,tegra186-smmu
261 - nvidia,tegra194-smmu 191 - nvidia,tegra194-smmu
262 - nvidia,tegra234-smmu 192 - nvidia,tegra234-smmu
263 then: 193 then:
264 properties: 194 properties:
265 reg: 195 reg:
266 minItems: 1 196 minItems: 1
267 maxItems: 2 197 maxItems: 2
268 198
269 # The reference to the memory controller 199 # The reference to the memory controller is required to ensure that the
270 # memory client to stream ID mapping can 200 # memory client to stream ID mapping can be done synchronously with the
271 # IOMMU attachment. 201 # IOMMU attachment.
272 required: 202 required:
273 - nvidia,memory-controller 203 - nvidia,memory-controller
274 else: 204 else:
275 properties: 205 properties:
276 reg: 206 reg:
277 maxItems: 1 <<
278 <<
279 - if: <<
280 properties: <<
281 compatible: <<
282 contains: <<
283 enum: <<
284 - qcom,msm8998-smmu-v2 <<
285 - qcom,sdm630-smmu-v2 <<
286 then: <<
287 anyOf: <<
288 - properties: <<
289 clock-names: <<
290 items: <<
291 - const: bus <<
292 clocks: <<
293 items: <<
294 - description: bus clock requi <<
295 the smmu ptw <<
296 - properties: <<
297 clock-names: <<
298 items: <<
299 - const: iface <<
300 - const: mem <<
301 - const: mem_iface <<
302 clocks: <<
303 items: <<
304 - description: interface clock <<
305 through the TCU's programm <<
306 - description: bus clock requi <<
307 - description: bus clock requi <<
308 - properties: <<
309 clock-names: <<
310 items: <<
311 - const: iface-mm <<
312 - const: iface-smmu <<
313 - const: bus-smmu <<
314 clocks: <<
315 items: <<
316 - description: interface clock <<
317 through the TCU's programm <<
318 - description: interface clock <<
319 through the TCU's programm <<
320 - description: bus clock requi <<
321 <<
322 - if: <<
323 properties: <<
324 compatible: <<
325 contains: <<
326 enum: <<
327 - qcom,sm6375-smmu-v2 <<
328 then: <<
329 anyOf: <<
330 - properties: <<
331 clock-names: <<
332 items: <<
333 - const: bus <<
334 clocks: <<
335 items: <<
336 - description: bus clock requi <<
337 the smmu ptw <<
338 - properties: <<
339 clock-names: <<
340 items: <<
341 - const: iface <<
342 - const: mem <<
343 - const: mem_iface <<
344 clocks: <<
345 items: <<
346 - description: interface clock <<
347 through the TCU's programm <<
348 - description: bus clock requi <<
349 - description: bus clock requi <<
350 - properties: <<
351 clock-names: <<
352 items: <<
353 - const: iface-mm <<
354 - const: iface-smmu <<
355 - const: bus-mm <<
356 - const: bus-smmu <<
357 clocks: <<
358 items: <<
359 - description: interface clock <<
360 through the TCU's programm <<
361 - description: interface clock <<
362 through the TCU's programm <<
363 - description: bus clock requi <<
364 - description: bus clock requi <<
365 <<
366 - if: <<
367 properties: <<
368 compatible: <<
369 contains: <<
370 enum: <<
371 - qcom,msm8996-smmu-v2 <<
372 - qcom,sc7180-smmu-v2 <<
373 - qcom,sdm845-smmu-v2 <<
374 then: <<
375 properties: <<
376 clock-names: <<
377 items: <<
378 - const: bus <<
379 - const: iface <<
380 <<
381 clocks: <<
382 items: <<
383 - description: bus clock required <<
384 the smmu ptw <<
385 - description: interface clock req <<
386 through the TCU's programming <<
387 <<
388 - if: <<
389 properties: <<
390 compatible: <<
391 contains: <<
392 enum: <<
393 - qcom,sa8775p-smmu-500 <<
394 - qcom,sc7280-smmu-500 <<
395 - qcom,sc8280xp-smmu-500 <<
396 then: <<
397 properties: <<
398 clock-names: <<
399 items: <<
400 - const: gcc_gpu_memnoc_gfx_clk <<
401 - const: gcc_gpu_snoc_dvm_gfx_clk <<
402 - const: gpu_cc_ahb_clk <<
403 - const: gpu_cc_hlos1_vote_gpu_smm <<
404 - const: gpu_cc_cx_gmu_clk <<
405 - const: gpu_cc_hub_cx_int_clk <<
406 - const: gpu_cc_hub_aon_clk <<
407 <<
408 clocks: <<
409 items: <<
410 - description: GPU memnoc_gfx cloc <<
411 - description: GPU snoc_dvm_gfx cl <<
412 - description: GPU ahb clock <<
413 - description: GPU hlos1_vote_GPU <<
414 - description: GPU cx_gmu clock <<
415 - description: GPU hub_cx_int cloc <<
416 - description: GPU hub_aon clock <<
417 <<
418 - if: <<
419 properties: <<
420 compatible: <<
421 contains: <<
422 enum: <<
423 - qcom,sc8180x-smmu-500 <<
424 - qcom,sm6350-smmu-v2 <<
425 - qcom,sm7150-smmu-v2 <<
426 - qcom,sm8150-smmu-500 <<
427 - qcom,sm8250-smmu-500 <<
428 then: <<
429 properties: <<
430 clock-names: <<
431 items: <<
432 - const: ahb <<
433 - const: bus <<
434 - const: iface <<
435 <<
436 clocks: <<
437 items: <<
438 - description: bus clock required <<
439 - description: bus clock required <<
440 the smmu ptw <<
441 - description: interface clock req <<
442 through the TCU's programming <<
443 <<
444 - if: <<
445 properties: <<
446 compatible: <<
447 items: <<
448 - enum: <<
449 - qcom,sm8350-smmu-500 <<
450 - const: qcom,adreno-smmu <<
451 - const: qcom,smmu-500 <<
452 - const: arm,mmu-500 <<
453 then: <<
454 properties: <<
455 clock-names: <<
456 items: <<
457 - const: bus <<
458 - const: iface <<
459 - const: ahb <<
460 - const: hlos1_vote_gpu_smmu <<
461 - const: cx_gmu <<
462 - const: hub_cx_int <<
463 - const: hub_aon <<
464 clocks: <<
465 minItems: 7 <<
466 maxItems: 7 <<
467 <<
468 - if: <<
469 properties: <<
470 compatible: <<
471 items: <<
472 - enum: <<
473 - qcom,qcm2290-smmu-500 <<
474 - qcom,sm6115-smmu-500 <<
475 - qcom,sm6125-smmu-500 <<
476 - const: qcom,adreno-smmu <<
477 - const: qcom,smmu-500 <<
478 - const: arm,mmu-500 <<
479 then: <<
480 properties: <<
481 clock-names: <<
482 items: <<
483 - const: mem <<
484 - const: hlos <<
485 - const: iface <<
486 <<
487 clocks: <<
488 items: <<
489 - description: GPU memory bus cloc <<
490 - description: Voter clock require <<
491 - description: Interface clock req <<
492 <<
493 - if: <<
494 properties: <<
495 compatible: <<
496 items: <<
497 - const: qcom,sm8450-smmu-500 <<
498 - const: qcom,adreno-smmu <<
499 - const: qcom,smmu-500 <<
500 - const: arm,mmu-500 <<
501 <<
502 then: <<
503 properties: <<
504 clock-names: <<
505 items: <<
506 - const: gmu <<
507 - const: hub <<
508 - const: hlos <<
509 - const: bus <<
510 - const: iface <<
511 - const: ahb <<
512 <<
513 clocks: <<
514 items: <<
515 - description: GMU clock <<
516 - description: GPU HUB clock <<
517 - description: HLOS vote clock <<
518 - description: GPU memory bus cloc <<
519 - description: GPU SNoC bus clock <<
520 - description: GPU AHB clock <<
521 <<
522 - if: <<
523 properties: <<
524 compatible: <<
525 items: <<
526 - enum: <<
527 - qcom,sm8550-smmu-500 <<
528 - qcom,sm8650-smmu-500 <<
529 - qcom,x1e80100-smmu-500 <<
530 - const: qcom,adreno-smmu <<
531 - const: qcom,smmu-500 <<
532 - const: arm,mmu-500 <<
533 then: <<
534 properties: <<
535 clock-names: <<
536 items: <<
537 - const: hlos <<
538 - const: bus <<
539 - const: iface <<
540 - const: ahb <<
541 <<
542 clocks: <<
543 items: <<
544 - description: HLOS vote clock <<
545 - description: GPU memory bus cloc <<
546 - description: GPU SNoC bus clock <<
547 - description: GPU AHB clock <<
548 <<
549 # Disallow clocks for all other platforms wi <<
550 - if: <<
551 properties: <<
552 compatible: <<
553 contains: <<
554 enum: <<
555 - cavium,smmu-v2 <<
556 - marvell,ap806-smmu-500 <<
557 - nvidia,smmu-500 <<
558 - qcom,qcs8300-smmu-500 <<
559 - qcom,qdu1000-smmu-500 <<
560 - qcom,sa8255p-smmu-500 <<
561 - qcom,sc7180-smmu-500 <<
562 - qcom,sdm670-smmu-500 <<
563 - qcom,sdm845-smmu-500 <<
564 - qcom,sdx55-smmu-500 <<
565 - qcom,sdx65-smmu-500 <<
566 - qcom,sm6350-smmu-500 <<
567 - qcom,sm6375-smmu-500 <<
568 then: <<
569 properties: <<
570 clock-names: false <<
571 clocks: false <<
572 <<
573 - if: <<
574 properties: <<
575 compatible: <<
576 contains: <<
577 const: qcom,sm6375-smmu-500 <<
578 then: <<
579 properties: <<
580 power-domains: <<
581 items: <<
582 - description: SNoC MMU TBU RT GDS <<
583 - description: SNoC MMU TBU NRT GD <<
584 - description: SNoC TURING MMU TBU <<
585 <<
586 required: <<
587 - power-domains <<
588 else: <<
589 properties: <<
590 power-domains: <<
591 maxItems: 1 207 maxItems: 1
592 208
593 examples: 209 examples:
594 - |+ 210 - |+
595 /* SMMU with stream matching or stream ind 211 /* SMMU with stream matching or stream indexing */
596 smmu1: iommu@ba5e0000 { 212 smmu1: iommu@ba5e0000 {
597 compatible = "arm,smmu-v1"; 213 compatible = "arm,smmu-v1";
598 reg = <0xba5e0000 0x10000>; 214 reg = <0xba5e0000 0x10000>;
599 #global-interrupts = <2>; 215 #global-interrupts = <2>;
600 interrupts = <0 32 4>, 216 interrupts = <0 32 4>,
601 <0 33 4>, 217 <0 33 4>,
602 <0 34 4>, /* This is 218 <0 34 4>, /* This is the first context interrupt */
603 <0 35 4>, 219 <0 35 4>,
604 <0 36 4>, 220 <0 36 4>,
605 <0 37 4>; 221 <0 37 4>;
606 #iommu-cells = <1>; 222 #iommu-cells = <1>;
607 }; 223 };
608 224
609 /* device with two stream IDs, 0 and 7 */ 225 /* device with two stream IDs, 0 and 7 */
610 master1 { 226 master1 {
611 iommus = <&smmu1 0>, 227 iommus = <&smmu1 0>,
612 <&smmu1 7>; 228 <&smmu1 7>;
613 }; 229 };
614 230
615 231
616 /* SMMU with stream matching */ 232 /* SMMU with stream matching */
617 smmu2: iommu@ba5f0000 { 233 smmu2: iommu@ba5f0000 {
618 compatible = "arm,smmu-v1"; 234 compatible = "arm,smmu-v1";
619 reg = <0xba5f0000 0x10000>; 235 reg = <0xba5f0000 0x10000>;
620 #global-interrupts = <2>; 236 #global-interrupts = <2>;
621 interrupts = <0 38 4>, 237 interrupts = <0 38 4>,
622 <0 39 4>, 238 <0 39 4>,
623 <0 40 4>, /* This is 239 <0 40 4>, /* This is the first context interrupt */
624 <0 41 4>, 240 <0 41 4>,
625 <0 42 4>, 241 <0 42 4>,
626 <0 43 4>; 242 <0 43 4>;
627 #iommu-cells = <2>; 243 #iommu-cells = <2>;
628 }; 244 };
629 245
630 /* device with stream IDs 0 and 7 */ 246 /* device with stream IDs 0 and 7 */
631 master2 { 247 master2 {
632 iommus = <&smmu2 0 0>, 248 iommus = <&smmu2 0 0>,
633 <&smmu2 7 0>; 249 <&smmu2 7 0>;
634 }; 250 };
635 251
636 /* device with stream IDs 1, 17, 33 and 49 252 /* device with stream IDs 1, 17, 33 and 49 */
637 master3 { 253 master3 {
638 iommus = <&smmu2 1 0x30>; 254 iommus = <&smmu2 1 0x30>;
639 }; 255 };
640 256
641 257
642 /* ARM MMU-500 with 10-bit stream ID input 258 /* ARM MMU-500 with 10-bit stream ID input configuration */
643 smmu3: iommu@ba600000 { 259 smmu3: iommu@ba600000 {
644 compatible = "arm,mmu-500", "arm,s 260 compatible = "arm,mmu-500", "arm,smmu-v2";
645 reg = <0xba600000 0x10000>; 261 reg = <0xba600000 0x10000>;
646 #global-interrupts = <2>; 262 #global-interrupts = <2>;
647 interrupts = <0 44 4>, 263 interrupts = <0 44 4>,
648 <0 45 4>, 264 <0 45 4>,
649 <0 46 4>, /* This is 265 <0 46 4>, /* This is the first context interrupt */
650 <0 47 4>, 266 <0 47 4>,
651 <0 48 4>, 267 <0 48 4>,
652 <0 49 4>; 268 <0 49 4>;
653 #iommu-cells = <1>; 269 #iommu-cells = <1>;
654 /* always ignore appended 5-bit TB 270 /* always ignore appended 5-bit TBU number */
655 stream-match-mask = <0x7c00>; 271 stream-match-mask = <0x7c00>;
656 }; 272 };
657 273
658 bus { 274 bus {
659 /* bus whose child devices emit on 275 /* bus whose child devices emit one unique 10-bit stream
660 ID each, but may master through 276 ID each, but may master through multiple SMMU TBUs */
661 iommu-map = <0 &smmu3 0 0x400>; 277 iommu-map = <0 &smmu3 0 0x400>;
662 278
663 279
664 }; 280 };
665 281
666 - |+ 282 - |+
667 /* Qcom's arm,smmu-v2 implementation */ 283 /* Qcom's arm,smmu-v2 implementation */
668 #include <dt-bindings/interrupt-controller 284 #include <dt-bindings/interrupt-controller/arm-gic.h>
669 #include <dt-bindings/interrupt-controller 285 #include <dt-bindings/interrupt-controller/irq.h>
670 smmu4: iommu@d00000 { 286 smmu4: iommu@d00000 {
671 compatible = "qcom,msm8996-smmu-v2", "qc 287 compatible = "qcom,msm8996-smmu-v2", "qcom,smmu-v2";
672 reg = <0xd00000 0x10000>; 288 reg = <0xd00000 0x10000>;
673 289
674 #global-interrupts = <1>; 290 #global-interrupts = <1>;
675 interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_ 291 interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
676 <GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH> 292 <GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH>,
677 <GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH> 293 <GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>;
678 #iommu-cells = <1>; 294 #iommu-cells = <1>;
679 power-domains = <&mmcc 0>; 295 power-domains = <&mmcc 0>;
680 296
681 clocks = <&mmcc 123>, 297 clocks = <&mmcc 123>,
682 <&mmcc 124>; 298 <&mmcc 124>;
683 clock-names = "bus", "iface"; 299 clock-names = "bus", "iface";
684 }; 300 };
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