1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2013-2014 Red Hat
4  * Author: Rob Clark <robdclark@gmail.com>
5  *
6  * Copyright (c) 2014,2017 The Linux Foundation. All rights reserved.
7  */
8 
9 #include "adreno_gpu.h"
10 
11 bool hang_debug = false;
12 MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
13 module_param_named(hang_debug, hang_debug, bool, 0600);
14 
15 bool snapshot_debugbus = false;
16 MODULE_PARM_DESC(snapshot_debugbus, "Include debugbus sections in GPU devcoredump (if not fused off)");
17 module_param_named(snapshot_debugbus, snapshot_debugbus, bool, 0600);
18 
19 bool allow_vram_carveout = false;
20 MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
21 module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
22 
23 static const struct adreno_info gpulist[] = {
24 	{
25 		.chip_ids = ADRENO_CHIP_IDS(0x02000000),
26 		.family = ADRENO_2XX_GEN1,
27 		.revn  = 200,
28 		.fw = {
29 			[ADRENO_FW_PM4] = "yamato_pm4.fw",
30 			[ADRENO_FW_PFP] = "yamato_pfp.fw",
31 		},
32 		.gmem  = SZ_256K,
33 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
34 		.init  = a2xx_gpu_init,
35 	}, { /* a200 on i.mx51 has only 128kib gmem */
36 		.chip_ids = ADRENO_CHIP_IDS(0x02000001),
37 		.family = ADRENO_2XX_GEN1,
38 		.revn  = 201,
39 		.fw = {
40 			[ADRENO_FW_PM4] = "yamato_pm4.fw",
41 			[ADRENO_FW_PFP] = "yamato_pfp.fw",
42 		},
43 		.gmem  = SZ_128K,
44 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
45 		.init  = a2xx_gpu_init,
46 	}, {
47 		.chip_ids = ADRENO_CHIP_IDS(0x02020000),
48 		.family = ADRENO_2XX_GEN2,
49 		.revn  = 220,
50 		.fw = {
51 			[ADRENO_FW_PM4] = "leia_pm4_470.fw",
52 			[ADRENO_FW_PFP] = "leia_pfp_470.fw",
53 		},
54 		.gmem  = SZ_512K,
55 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
56 		.init  = a2xx_gpu_init,
57 	}, {
58 		.chip_ids = ADRENO_CHIP_IDS(
59 			0x03000512,
60 			0x03000520
61 		),
62 		.family = ADRENO_3XX,
63 		.revn  = 305,
64 		.fw = {
65 			[ADRENO_FW_PM4] = "a300_pm4.fw",
66 			[ADRENO_FW_PFP] = "a300_pfp.fw",
67 		},
68 		.gmem  = SZ_256K,
69 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
70 		.init  = a3xx_gpu_init,
71 	}, {
72 		.chip_ids = ADRENO_CHIP_IDS(0x03000600),
73 		.family = ADRENO_3XX,
74 		.revn  = 307,        /* because a305c is revn==306 */
75 		.fw = {
76 			[ADRENO_FW_PM4] = "a300_pm4.fw",
77 			[ADRENO_FW_PFP] = "a300_pfp.fw",
78 		},
79 		.gmem  = SZ_128K,
80 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
81 		.init  = a3xx_gpu_init,
82 	}, {
83 		.chip_ids = ADRENO_CHIP_IDS(
84 			0x03020000,
85 			0x03020001,
86 			0x03020002
87 		),
88 		.family = ADRENO_3XX,
89 		.revn  = 320,
90 		.fw = {
91 			[ADRENO_FW_PM4] = "a300_pm4.fw",
92 			[ADRENO_FW_PFP] = "a300_pfp.fw",
93 		},
94 		.gmem  = SZ_512K,
95 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
96 		.init  = a3xx_gpu_init,
97 	}, {
98 		.chip_ids = ADRENO_CHIP_IDS(
99 			0x03030000,
100 			0x03030001,
101 			0x03030002
102 		),
103 		.family = ADRENO_3XX,
104 		.revn  = 330,
105 		.fw = {
106 			[ADRENO_FW_PM4] = "a330_pm4.fw",
107 			[ADRENO_FW_PFP] = "a330_pfp.fw",
108 		},
109 		.gmem  = SZ_1M,
110 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
111 		.init  = a3xx_gpu_init,
112 	}, {
113 		.chip_ids = ADRENO_CHIP_IDS(0x04000500),
114 		.family = ADRENO_4XX,
115 		.revn  = 405,
116 		.fw = {
117 			[ADRENO_FW_PM4] = "a420_pm4.fw",
118 			[ADRENO_FW_PFP] = "a420_pfp.fw",
119 		},
120 		.gmem  = SZ_256K,
121 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
122 		.init  = a4xx_gpu_init,
123 	}, {
124 		.chip_ids = ADRENO_CHIP_IDS(0x04020000),
125 		.family = ADRENO_4XX,
126 		.revn  = 420,
127 		.fw = {
128 			[ADRENO_FW_PM4] = "a420_pm4.fw",
129 			[ADRENO_FW_PFP] = "a420_pfp.fw",
130 		},
131 		.gmem  = (SZ_1M + SZ_512K),
132 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
133 		.init  = a4xx_gpu_init,
134 	}, {
135 		.chip_ids = ADRENO_CHIP_IDS(0x04030002),
136 		.family = ADRENO_4XX,
137 		.revn  = 430,
138 		.fw = {
139 			[ADRENO_FW_PM4] = "a420_pm4.fw",
140 			[ADRENO_FW_PFP] = "a420_pfp.fw",
141 		},
142 		.gmem  = (SZ_1M + SZ_512K),
143 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
144 		.init  = a4xx_gpu_init,
145 	}, {
146 		.chip_ids = ADRENO_CHIP_IDS(0x05000600),
147 		.family = ADRENO_5XX,
148 		.revn = 506,
149 		.fw = {
150 			[ADRENO_FW_PM4] = "a530_pm4.fw",
151 			[ADRENO_FW_PFP] = "a530_pfp.fw",
152 		},
153 		.gmem = (SZ_128K + SZ_8K),
154 		/*
155 		 * Increase inactive period to 250 to avoid bouncing
156 		 * the GDSC which appears to make it grumpy
157 		 */
158 		.inactive_period = 250,
159 		.quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
160 			  ADRENO_QUIRK_LMLOADKILL_DISABLE,
161 		.init = a5xx_gpu_init,
162 		.zapfw = "a506_zap.mdt",
163 	}, {
164 		.chip_ids = ADRENO_CHIP_IDS(0x05000800),
165 		.family = ADRENO_5XX,
166 		.revn = 508,
167 		.fw = {
168 			[ADRENO_FW_PM4] = "a530_pm4.fw",
169 			[ADRENO_FW_PFP] = "a530_pfp.fw",
170 		},
171 		.gmem = (SZ_128K + SZ_8K),
172 		/*
173 		 * Increase inactive period to 250 to avoid bouncing
174 		 * the GDSC which appears to make it grumpy
175 		 */
176 		.inactive_period = 250,
177 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
178 		.init = a5xx_gpu_init,
179 		.zapfw = "a508_zap.mdt",
180 	}, {
181 		.chip_ids = ADRENO_CHIP_IDS(0x05000900),
182 		.family = ADRENO_5XX,
183 		.revn = 509,
184 		.fw = {
185 			[ADRENO_FW_PM4] = "a530_pm4.fw",
186 			[ADRENO_FW_PFP] = "a530_pfp.fw",
187 		},
188 		.gmem = (SZ_256K + SZ_16K),
189 		/*
190 		 * Increase inactive period to 250 to avoid bouncing
191 		 * the GDSC which appears to make it grumpy
192 		 */
193 		.inactive_period = 250,
194 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
195 		.init = a5xx_gpu_init,
196 		/* Adreno 509 uses the same ZAP as 512 */
197 		.zapfw = "a512_zap.mdt",
198 	}, {
199 		.chip_ids = ADRENO_CHIP_IDS(0x05010000),
200 		.family = ADRENO_5XX,
201 		.revn = 510,
202 		.fw = {
203 			[ADRENO_FW_PM4] = "a530_pm4.fw",
204 			[ADRENO_FW_PFP] = "a530_pfp.fw",
205 		},
206 		.gmem = SZ_256K,
207 		/*
208 		 * Increase inactive period to 250 to avoid bouncing
209 		 * the GDSC which appears to make it grumpy
210 		 */
211 		.inactive_period = 250,
212 		.init = a5xx_gpu_init,
213 	}, {
214 		.chip_ids = ADRENO_CHIP_IDS(0x05010200),
215 		.family = ADRENO_5XX,
216 		.revn = 512,
217 		.fw = {
218 			[ADRENO_FW_PM4] = "a530_pm4.fw",
219 			[ADRENO_FW_PFP] = "a530_pfp.fw",
220 		},
221 		.gmem = (SZ_256K + SZ_16K),
222 		/*
223 		 * Increase inactive period to 250 to avoid bouncing
224 		 * the GDSC which appears to make it grumpy
225 		 */
226 		.inactive_period = 250,
227 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
228 		.init = a5xx_gpu_init,
229 		.zapfw = "a512_zap.mdt",
230 	}, {
231 		.chip_ids = ADRENO_CHIP_IDS(
232 			0x05030002,
233 			0x05030004
234 		),
235 		.family = ADRENO_5XX,
236 		.revn = 530,
237 		.fw = {
238 			[ADRENO_FW_PM4] = "a530_pm4.fw",
239 			[ADRENO_FW_PFP] = "a530_pfp.fw",
240 			[ADRENO_FW_GPMU] = "a530v3_gpmu.fw2",
241 		},
242 		.gmem = SZ_1M,
243 		/*
244 		 * Increase inactive period to 250 to avoid bouncing
245 		 * the GDSC which appears to make it grumpy
246 		 */
247 		.inactive_period = 250,
248 		.quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
249 			ADRENO_QUIRK_FAULT_DETECT_MASK,
250 		.init = a5xx_gpu_init,
251 		.zapfw = "a530_zap.mdt",
252 	}, {
253 		.chip_ids = ADRENO_CHIP_IDS(0x05040001),
254 		.family = ADRENO_5XX,
255 		.revn = 540,
256 		.fw = {
257 			[ADRENO_FW_PM4] = "a530_pm4.fw",
258 			[ADRENO_FW_PFP] = "a530_pfp.fw",
259 			[ADRENO_FW_GPMU] = "a540_gpmu.fw2",
260 		},
261 		.gmem = SZ_1M,
262 		/*
263 		 * Increase inactive period to 250 to avoid bouncing
264 		 * the GDSC which appears to make it grumpy
265 		 */
266 		.inactive_period = 250,
267 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
268 		.init = a5xx_gpu_init,
269 		.zapfw = "a540_zap.mdt",
270 	}, {
271 		.chip_ids = ADRENO_CHIP_IDS(0x06010000),
272 		.family = ADRENO_6XX_GEN1,
273 		.revn = 610,
274 		.fw = {
275 			[ADRENO_FW_SQE] = "a630_sqe.fw",
276 		},
277 		.gmem = (SZ_128K + SZ_4K),
278 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
279 		.init = a6xx_gpu_init,
280 		.zapfw = "a610_zap.mdt",
281 		.hwcg = a612_hwcg,
282 		/*
283 		 * There are (at least) three SoCs implementing A610: SM6125
284 		 * (trinket), SM6115 (bengal) and SM6225 (khaje). Trinket does
285 		 * not have speedbinning, as only a single SKU exists and we
286 		 * don't support khaje upstream yet.  Hence, this matching
287 		 * table is only valid for bengal.
288 		 */
289 		.speedbins = ADRENO_SPEEDBINS(
290 			{ 0,   0 },
291 			{ 206, 1 },
292 			{ 200, 2 },
293 			{ 157, 3 },
294 			{ 127, 4 },
295 		),
296 	}, {
297 		.chip_ids = ADRENO_CHIP_IDS(0x06010800),
298 		.family = ADRENO_6XX_GEN1,
299 		.revn = 618,
300 		.fw = {
301 			[ADRENO_FW_SQE] = "a630_sqe.fw",
302 			[ADRENO_FW_GMU] = "a630_gmu.bin",
303 		},
304 		.gmem = SZ_512K,
305 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
306 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT,
307 		.init = a6xx_gpu_init,
308 		.speedbins = ADRENO_SPEEDBINS(
309 			{ 0,   0 },
310 			{ 169, 1 },
311 			{ 174, 2 },
312 		),
313 	}, {
314 		.machine = "qcom,sm4350",
315 		.chip_ids = ADRENO_CHIP_IDS(0x06010900),
316 		.family = ADRENO_6XX_GEN1,
317 		.revn = 619,
318 		.fw = {
319 			[ADRENO_FW_SQE] = "a630_sqe.fw",
320 			[ADRENO_FW_GMU] = "a619_gmu.bin",
321 		},
322 		.gmem = SZ_512K,
323 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
324 		.init = a6xx_gpu_init,
325 		.zapfw = "a615_zap.mdt",
326 		.hwcg = a615_hwcg,
327 		.speedbins = ADRENO_SPEEDBINS(
328 			{ 0,   0 },
329 			{ 138, 1 },
330 			{ 92,  2 },
331 		),
332 	}, {
333 		.machine = "qcom,sm6375",
334 		.chip_ids = ADRENO_CHIP_IDS(0x06010901),
335 		.family = ADRENO_6XX_GEN1,
336 		.revn = 619,
337 		.fw = {
338 			[ADRENO_FW_SQE] = "a630_sqe.fw",
339 			[ADRENO_FW_GMU] = "a619_gmu.bin",
340 		},
341 		.gmem = SZ_512K,
342 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
343 		.init = a6xx_gpu_init,
344 		.zapfw = "a615_zap.mdt",
345 		.hwcg = a615_hwcg,
346 		.speedbins = ADRENO_SPEEDBINS(
347 			{ 0,   0 },
348 			{ 190, 1 },
349 			{ 177, 2 },
350 		),
351 	}, {
352 		.chip_ids = ADRENO_CHIP_IDS(0x06010900),
353 		.family = ADRENO_6XX_GEN1,
354 		.revn = 619,
355 		.fw = {
356 			[ADRENO_FW_SQE] = "a630_sqe.fw",
357 			[ADRENO_FW_GMU] = "a619_gmu.bin",
358 		},
359 		.gmem = SZ_512K,
360 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
361 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT,
362 		.init = a6xx_gpu_init,
363 		.zapfw = "a615_zap.mdt",
364 		.hwcg = a615_hwcg,
365 		.speedbins = ADRENO_SPEEDBINS(
366 			{ 0,   0 },
367 			{ 120, 4 },
368 			{ 138, 3 },
369 			{ 169, 2 },
370 			{ 180, 1 },
371 		),
372 	}, {
373 		.chip_ids = ADRENO_CHIP_IDS(
374 			0x06030001,
375 			0x06030002
376 		),
377 		.family = ADRENO_6XX_GEN1,
378 		.revn = 630,
379 		.fw = {
380 			[ADRENO_FW_SQE] = "a630_sqe.fw",
381 			[ADRENO_FW_GMU] = "a630_gmu.bin",
382 		},
383 		.gmem = SZ_1M,
384 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
385 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT,
386 		.init = a6xx_gpu_init,
387 		.zapfw = "a630_zap.mdt",
388 		.hwcg = a630_hwcg,
389 	}, {
390 		.chip_ids = ADRENO_CHIP_IDS(0x06040001),
391 		.family = ADRENO_6XX_GEN2,
392 		.revn = 640,
393 		.fw = {
394 			[ADRENO_FW_SQE] = "a630_sqe.fw",
395 			[ADRENO_FW_GMU] = "a640_gmu.bin",
396 		},
397 		.gmem = SZ_1M,
398 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
399 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT,
400 		.init = a6xx_gpu_init,
401 		.zapfw = "a640_zap.mdt",
402 		.hwcg = a640_hwcg,
403 		.speedbins = ADRENO_SPEEDBINS(
404 			{ 0, 0 },
405 			{ 1, 1 },
406 		),
407 	}, {
408 		.chip_ids = ADRENO_CHIP_IDS(0x06050002),
409 		.family = ADRENO_6XX_GEN3,
410 		.revn = 650,
411 		.fw = {
412 			[ADRENO_FW_SQE] = "a650_sqe.fw",
413 			[ADRENO_FW_GMU] = "a650_gmu.bin",
414 		},
415 		.gmem = SZ_1M + SZ_128K,
416 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
417 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
418 			ADRENO_QUIRK_HAS_HW_APRIV,
419 		.init = a6xx_gpu_init,
420 		.zapfw = "a650_zap.mdt",
421 		.hwcg = a650_hwcg,
422 		.address_space_size = SZ_16G,
423 		.speedbins = ADRENO_SPEEDBINS(
424 			{ 0, 0 },
425 			{ 1, 1 },
426 			{ 2, 3 }, /* Yep, 2 and 3 are swapped! :/ */
427 			{ 3, 2 },
428 		),
429 	}, {
430 		.chip_ids = ADRENO_CHIP_IDS(0x06060001),
431 		.family = ADRENO_6XX_GEN4,
432 		.revn = 660,
433 		.fw = {
434 			[ADRENO_FW_SQE] = "a660_sqe.fw",
435 			[ADRENO_FW_GMU] = "a660_gmu.bin",
436 		},
437 		.gmem = SZ_1M + SZ_512K,
438 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
439 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
440 			ADRENO_QUIRK_HAS_HW_APRIV,
441 		.init = a6xx_gpu_init,
442 		.zapfw = "a660_zap.mdt",
443 		.hwcg = a660_hwcg,
444 		.address_space_size = SZ_16G,
445 	}, {
446 		.chip_ids = ADRENO_CHIP_IDS(0x06030500),
447 		.family = ADRENO_6XX_GEN4,
448 		.fw = {
449 			[ADRENO_FW_SQE] = "a660_sqe.fw",
450 			[ADRENO_FW_GMU] = "a660_gmu.bin",
451 		},
452 		.gmem = SZ_512K,
453 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
454 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
455 			ADRENO_QUIRK_HAS_HW_APRIV,
456 		.init = a6xx_gpu_init,
457 		.hwcg = a660_hwcg,
458 		.address_space_size = SZ_16G,
459 		.speedbins = ADRENO_SPEEDBINS(
460 			{ 0,   0 },
461 			{ 117, 0 },
462 			{ 190, 1 },
463 		),
464 	}, {
465 		.chip_ids = ADRENO_CHIP_IDS(0x06080001),
466 		.family = ADRENO_6XX_GEN2,
467 		.revn = 680,
468 		.fw = {
469 			[ADRENO_FW_SQE] = "a630_sqe.fw",
470 			[ADRENO_FW_GMU] = "a640_gmu.bin",
471 		},
472 		.gmem = SZ_2M,
473 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
474 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT,
475 		.init = a6xx_gpu_init,
476 		.zapfw = "a640_zap.mdt",
477 		.hwcg = a640_hwcg,
478 	}, {
479 		.chip_ids = ADRENO_CHIP_IDS(0x06090000),
480 		.family = ADRENO_6XX_GEN4,
481 		.fw = {
482 			[ADRENO_FW_SQE] = "a660_sqe.fw",
483 			[ADRENO_FW_GMU] = "a660_gmu.bin",
484 		},
485 		.gmem = SZ_4M,
486 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
487 		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
488 			ADRENO_QUIRK_HAS_HW_APRIV,
489 		.init = a6xx_gpu_init,
490 		.zapfw = "a690_zap.mdt",
491 		.hwcg = a690_hwcg,
492 		.address_space_size = SZ_16G,
493 	},
494 };
495 
496 MODULE_FIRMWARE("qcom/a300_pm4.fw");
497 MODULE_FIRMWARE("qcom/a300_pfp.fw");
498 MODULE_FIRMWARE("qcom/a330_pm4.fw");
499 MODULE_FIRMWARE("qcom/a330_pfp.fw");
500 MODULE_FIRMWARE("qcom/a420_pm4.fw");
501 MODULE_FIRMWARE("qcom/a420_pfp.fw");
502 MODULE_FIRMWARE("qcom/a530_pm4.fw");
503 MODULE_FIRMWARE("qcom/a530_pfp.fw");
504 MODULE_FIRMWARE("qcom/a530v3_gpmu.fw2");
505 MODULE_FIRMWARE("qcom/a530_zap.mdt");
506 MODULE_FIRMWARE("qcom/a530_zap.b00");
507 MODULE_FIRMWARE("qcom/a530_zap.b01");
508 MODULE_FIRMWARE("qcom/a530_zap.b02");
509 MODULE_FIRMWARE("qcom/a540_gpmu.fw2");
510 MODULE_FIRMWARE("qcom/a619_gmu.bin");
511 MODULE_FIRMWARE("qcom/a630_sqe.fw");
512 MODULE_FIRMWARE("qcom/a630_gmu.bin");
513 MODULE_FIRMWARE("qcom/a630_zap.mbn");
514 MODULE_FIRMWARE("qcom/a640_gmu.bin");
515 MODULE_FIRMWARE("qcom/a650_gmu.bin");
516 MODULE_FIRMWARE("qcom/a650_sqe.fw");
517 MODULE_FIRMWARE("qcom/a660_gmu.bin");
518 MODULE_FIRMWARE("qcom/a660_sqe.fw");
519 MODULE_FIRMWARE("qcom/leia_pfp_470.fw");
520 MODULE_FIRMWARE("qcom/leia_pm4_470.fw");
521 MODULE_FIRMWARE("qcom/yamato_pfp.fw");
522 MODULE_FIRMWARE("qcom/yamato_pm4.fw");
523 
524 static const struct adreno_info *adreno_info(uint32_t chip_id)
525 {
526 	/* identify gpu: */
527 	for (int i = 0; i < ARRAY_SIZE(gpulist); i++) {
528 		const struct adreno_info *info = &gpulist[i];
529 		if (info->machine && !of_machine_is_compatible(info->machine))
530 			continue;
531 		for (int j = 0; info->chip_ids[j]; j++)
532 			if (info->chip_ids[j] == chip_id)
533 				return info;
534 	}
535 
536 	return NULL;
537 }
538 
539 struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
540 {
541 	struct msm_drm_private *priv = dev->dev_private;
542 	struct platform_device *pdev = priv->gpu_pdev;
543 	struct msm_gpu *gpu = NULL;
544 	struct adreno_gpu *adreno_gpu;
545 	int ret;
546 
547 	if (pdev)
548 		gpu = dev_to_gpu(&pdev->dev);
549 
550 	if (!gpu) {
551 		dev_err_once(dev->dev, "no GPU device was found\n");
552 		return NULL;
553 	}
554 
555 	adreno_gpu = to_adreno_gpu(gpu);
556 
557 	/*
558 	 * The number one reason for HW init to fail is if the firmware isn't
559 	 * loaded yet. Try that first and don't bother continuing on
560 	 * otherwise
561 	 */
562 
563 	ret = adreno_load_fw(adreno_gpu);
564 	if (ret)
565 		return NULL;
566 
567 	if (gpu->funcs->ucode_load) {
568 		ret = gpu->funcs->ucode_load(gpu);
569 		if (ret)
570 			return NULL;
571 	}
572 
573 	/*
574 	 * Now that we have firmware loaded, and are ready to begin
575 	 * booting the gpu, go ahead and enable runpm:
576 	 */
577 	pm_runtime_enable(&pdev->dev);
578 
579 	ret = pm_runtime_get_sync(&pdev->dev);
580 	if (ret < 0) {
581 		pm_runtime_put_noidle(&pdev->dev);
582 		DRM_DEV_ERROR(dev->dev, "Couldn't power up the GPU: %d\n", ret);
583 		goto err_disable_rpm;
584 	}
585 
586 	mutex_lock(&gpu->lock);
587 	ret = msm_gpu_hw_init(gpu);
588 	mutex_unlock(&gpu->lock);
589 	if (ret) {
590 		DRM_DEV_ERROR(dev->dev, "gpu hw init failed: %d\n", ret);
591 		goto err_put_rpm;
592 	}
593 
594 	pm_runtime_put_autosuspend(&pdev->dev);
595 
596 #ifdef CONFIG_DEBUG_FS
597 	if (gpu->funcs->debugfs_init) {
598 		gpu->funcs->debugfs_init(gpu, dev->primary);
599 		gpu->funcs->debugfs_init(gpu, dev->render);
600 	}
601 #endif
602 
603 	return gpu;
604 
605 err_put_rpm:
606 	pm_runtime_put_sync_suspend(&pdev->dev);
607 err_disable_rpm:
608 	pm_runtime_disable(&pdev->dev);
609 
610 	return NULL;
611 }
612 
613 static int find_chipid(struct device *dev, uint32_t *chipid)
614 {
615 	struct device_node *node = dev->of_node;
616 	const char *compat;
617 	int ret;
618 
619 	/* first search the compat strings for qcom,adreno-XYZ.W: */
620 	ret = of_property_read_string_index(node, "compatible", 0, &compat);
621 	if (ret == 0) {
622 		unsigned int r, patch;
623 
624 		if (sscanf(compat, "qcom,adreno-%u.%u", &r, &patch) == 2 ||
625 		    sscanf(compat, "amd,imageon-%u.%u", &r, &patch) == 2) {
626 			uint32_t core, major, minor;
627 
628 			core = r / 100;
629 			r %= 100;
630 			major = r / 10;
631 			r %= 10;
632 			minor = r;
633 
634 			*chipid = (core << 24) |
635 				(major << 16) |
636 				(minor << 8) |
637 				patch;
638 
639 			return 0;
640 		}
641 
642 		if (sscanf(compat, "qcom,adreno-%08x", chipid) == 1)
643 			return 0;
644 	}
645 
646 	/* and if that fails, fall back to legacy "qcom,chipid" property: */
647 	ret = of_property_read_u32(node, "qcom,chipid", chipid);
648 	if (ret) {
649 		DRM_DEV_ERROR(dev, "could not parse qcom,chipid: %d\n", ret);
650 		return ret;
651 	}
652 
653 	dev_warn(dev, "Using legacy qcom,chipid binding!\n");
654 
655 	return 0;
656 }
657 
658 static int adreno_bind(struct device *dev, struct device *master, void *data)
659 {
660 	static struct adreno_platform_config config = {};
661 	const struct adreno_info *info;
662 	struct msm_drm_private *priv = dev_get_drvdata(master);
663 	struct drm_device *drm = priv->dev;
664 	struct msm_gpu *gpu;
665 	int ret;
666 
667 	ret = find_chipid(dev, &config.chip_id);
668 	if (ret)
669 		return ret;
670 
671 	dev->platform_data = &config;
672 	priv->gpu_pdev = to_platform_device(dev);
673 
674 	info = adreno_info(config.chip_id);
675 	if (!info) {
676 		dev_warn(drm->dev, "Unknown GPU revision: %"ADRENO_CHIPID_FMT"\n",
677 			ADRENO_CHIPID_ARGS(config.chip_id));
678 		return -ENXIO;
679 	}
680 
681 	config.info = info;
682 
683 	DBG("Found GPU: %"ADRENO_CHIPID_FMT, ADRENO_CHIPID_ARGS(config.chip_id));
684 
685 	priv->is_a2xx = info->family < ADRENO_3XX;
686 	priv->has_cached_coherent =
687 		!!(info->quirks & ADRENO_QUIRK_HAS_CACHED_COHERENT);
688 
689 	gpu = info->init(drm);
690 	if (IS_ERR(gpu)) {
691 		dev_warn(drm->dev, "failed to load adreno gpu\n");
692 		return PTR_ERR(gpu);
693 	}
694 
695 	ret = dev_pm_opp_of_find_icc_paths(dev, NULL);
696 	if (ret)
697 		return ret;
698 
699 	return 0;
700 }
701 
702 static int adreno_system_suspend(struct device *dev);
703 static void adreno_unbind(struct device *dev, struct device *master,
704 		void *data)
705 {
706 	struct msm_drm_private *priv = dev_get_drvdata(master);
707 	struct msm_gpu *gpu = dev_to_gpu(dev);
708 
709 	if (pm_runtime_enabled(dev))
710 		WARN_ON_ONCE(adreno_system_suspend(dev));
711 	gpu->funcs->destroy(gpu);
712 
713 	priv->gpu_pdev = NULL;
714 }
715 
716 static const struct component_ops a3xx_ops = {
717 	.bind   = adreno_bind,
718 	.unbind = adreno_unbind,
719 };
720 
721 static void adreno_device_register_headless(void)
722 {
723 	/* on imx5, we don't have a top-level mdp/dpu node
724 	 * this creates a dummy node for the driver for that case
725 	 */
726 	struct platform_device_info dummy_info = {
727 		.parent = NULL,
728 		.name = "msm",
729 		.id = -1,
730 		.res = NULL,
731 		.num_res = 0,
732 		.data = NULL,
733 		.size_data = 0,
734 		.dma_mask = ~0,
735 	};
736 	platform_device_register_full(&dummy_info);
737 }
738 
739 static int adreno_probe(struct platform_device *pdev)
740 {
741 
742 	int ret;
743 
744 	ret = component_add(&pdev->dev, &a3xx_ops);
745 	if (ret)
746 		return ret;
747 
748 	if (of_device_is_compatible(pdev->dev.of_node, "amd,imageon"))
749 		adreno_device_register_headless();
750 
751 	return 0;
752 }
753 
754 static int adreno_remove(struct platform_device *pdev)
755 {
756 	component_del(&pdev->dev, &a3xx_ops);
757 	return 0;
758 }
759 
760 static void adreno_shutdown(struct platform_device *pdev)
761 {
762 	WARN_ON_ONCE(adreno_system_suspend(&pdev->dev));
763 }
764 
765 static const struct of_device_id dt_match[] = {
766 	{ .compatible = "qcom,adreno" },
767 	{ .compatible = "qcom,adreno-3xx" },
768 	/* for compatibility with imx5 gpu: */
769 	{ .compatible = "amd,imageon" },
770 	/* for backwards compat w/ downstream kgsl DT files: */
771 	{ .compatible = "qcom,kgsl-3d0" },
772 	{}
773 };
774 
775 static int adreno_runtime_resume(struct device *dev)
776 {
777 	struct msm_gpu *gpu = dev_to_gpu(dev);
778 
779 	return gpu->funcs->pm_resume(gpu);
780 }
781 
782 static int adreno_runtime_suspend(struct device *dev)
783 {
784 	struct msm_gpu *gpu = dev_to_gpu(dev);
785 
786 	/*
787 	 * We should be holding a runpm ref, which will prevent
788 	 * runtime suspend.  In the system suspend path, we've
789 	 * already waited for active jobs to complete.
790 	 */
791 	WARN_ON_ONCE(gpu->active_submits);
792 
793 	return gpu->funcs->pm_suspend(gpu);
794 }
795 
796 static void suspend_scheduler(struct msm_gpu *gpu)
797 {
798 	int i;
799 
800 	/*
801 	 * Shut down the scheduler before we force suspend, so that
802 	 * suspend isn't racing with scheduler kthread feeding us
803 	 * more work.
804 	 *
805 	 * Note, we just want to park the thread, and let any jobs
806 	 * that are already on the hw queue complete normally, as
807 	 * opposed to the drm_sched_stop() path used for handling
808 	 * faulting/timed-out jobs.  We can't really cancel any jobs
809 	 * already on the hw queue without racing with the GPU.
810 	 */
811 	for (i = 0; i < gpu->nr_rings; i++) {
812 		struct drm_gpu_scheduler *sched = &gpu->rb[i]->sched;
813 		kthread_park(sched->thread);
814 	}
815 }
816 
817 static void resume_scheduler(struct msm_gpu *gpu)
818 {
819 	int i;
820 
821 	for (i = 0; i < gpu->nr_rings; i++) {
822 		struct drm_gpu_scheduler *sched = &gpu->rb[i]->sched;
823 		kthread_unpark(sched->thread);
824 	}
825 }
826 
827 static int adreno_system_suspend(struct device *dev)
828 {
829 	struct msm_gpu *gpu = dev_to_gpu(dev);
830 	int remaining, ret;
831 
832 	if (!gpu)
833 		return 0;
834 
835 	suspend_scheduler(gpu);
836 
837 	remaining = wait_event_timeout(gpu->retire_event,
838 				       gpu->active_submits == 0,
839 				       msecs_to_jiffies(1000));
840 	if (remaining == 0) {
841 		dev_err(dev, "Timeout waiting for GPU to suspend\n");
842 		ret = -EBUSY;
843 		goto out;
844 	}
845 
846 	ret = pm_runtime_force_suspend(dev);
847 out:
848 	if (ret)
849 		resume_scheduler(gpu);
850 
851 	return ret;
852 }
853 
854 static int adreno_system_resume(struct device *dev)
855 {
856 	struct msm_gpu *gpu = dev_to_gpu(dev);
857 
858 	if (!gpu)
859 		return 0;
860 
861 	resume_scheduler(gpu);
862 	return pm_runtime_force_resume(dev);
863 }
864 
865 static const struct dev_pm_ops adreno_pm_ops = {
866 	SYSTEM_SLEEP_PM_OPS(adreno_system_suspend, adreno_system_resume)
867 	RUNTIME_PM_OPS(adreno_runtime_suspend, adreno_runtime_resume, NULL)
868 };
869 
870 static struct platform_driver adreno_driver = {
871 	.probe = adreno_probe,
872 	.remove = adreno_remove,
873 	.shutdown = adreno_shutdown,
874 	.driver = {
875 		.name = "adreno",
876 		.of_match_table = dt_match,
877 		.pm = &adreno_pm_ops,
878 	},
879 };
880 
881 void __init adreno_register(void)
882 {
883 	platform_driver_register(&adreno_driver);
884 }
885 
886 void __exit adreno_unregister(void)
887 {
888 	platform_driver_unregister(&adreno_driver);
889 }
890