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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 		.rev   = ADRENO_REV(2, 0, 0, 0),
26 		.revn  = 200,
27 		.name  = "A200",
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 		.rev   = ADRENO_REV(2, 0, 0, 1),
37 		.revn  = 201,
38 		.name  = "A200",
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 		.rev   = ADRENO_REV(2, 2, 0, ANY_ID),
48 		.revn  = 220,
49 		.name  = "A220",
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 		.rev   = ADRENO_REV(3, 0, 5, ANY_ID),
59 		.revn  = 305,
60 		.name  = "A305",
61 		.fw = {
62 			[ADRENO_FW_PM4] = "a300_pm4.fw",
63 			[ADRENO_FW_PFP] = "a300_pfp.fw",
64 		},
65 		.gmem  = SZ_256K,
66 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
67 		.init  = a3xx_gpu_init,
68 	}, {
69 		.rev   = ADRENO_REV(3, 0, 6, 0),
70 		.revn  = 307,        /* because a305c is revn==306 */
71 		.name  = "A306",
72 		.fw = {
73 			[ADRENO_FW_PM4] = "a300_pm4.fw",
74 			[ADRENO_FW_PFP] = "a300_pfp.fw",
75 		},
76 		.gmem  = SZ_128K,
77 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
78 		.init  = a3xx_gpu_init,
79 	}, {
80 		.rev   = ADRENO_REV(3, 2, ANY_ID, ANY_ID),
81 		.revn  = 320,
82 		.name  = "A320",
83 		.fw = {
84 			[ADRENO_FW_PM4] = "a300_pm4.fw",
85 			[ADRENO_FW_PFP] = "a300_pfp.fw",
86 		},
87 		.gmem  = SZ_512K,
88 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
89 		.init  = a3xx_gpu_init,
90 	}, {
91 		.rev   = ADRENO_REV(3, 3, 0, ANY_ID),
92 		.revn  = 330,
93 		.name  = "A330",
94 		.fw = {
95 			[ADRENO_FW_PM4] = "a330_pm4.fw",
96 			[ADRENO_FW_PFP] = "a330_pfp.fw",
97 		},
98 		.gmem  = SZ_1M,
99 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
100 		.init  = a3xx_gpu_init,
101 	}, {
102 		.rev   = ADRENO_REV(4, 0, 5, ANY_ID),
103 		.revn  = 405,
104 		.name  = "A405",
105 		.fw = {
106 			[ADRENO_FW_PM4] = "a420_pm4.fw",
107 			[ADRENO_FW_PFP] = "a420_pfp.fw",
108 		},
109 		.gmem  = SZ_256K,
110 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
111 		.init  = a4xx_gpu_init,
112 	}, {
113 		.rev   = ADRENO_REV(4, 2, 0, ANY_ID),
114 		.revn  = 420,
115 		.name  = "A420",
116 		.fw = {
117 			[ADRENO_FW_PM4] = "a420_pm4.fw",
118 			[ADRENO_FW_PFP] = "a420_pfp.fw",
119 		},
120 		.gmem  = (SZ_1M + SZ_512K),
121 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
122 		.init  = a4xx_gpu_init,
123 	}, {
124 		.rev   = ADRENO_REV(4, 3, 0, ANY_ID),
125 		.revn  = 430,
126 		.name  = "A430",
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 		.rev   = ADRENO_REV(5, 0, 8, ANY_ID),
136 		.revn = 508,
137 		.name = "A508",
138 		.fw = {
139 			[ADRENO_FW_PM4] = "a530_pm4.fw",
140 			[ADRENO_FW_PFP] = "a530_pfp.fw",
141 		},
142 		.gmem = (SZ_128K + SZ_8K),
143 		/*
144 		 * Increase inactive period to 250 to avoid bouncing
145 		 * the GDSC which appears to make it grumpy
146 		 */
147 		.inactive_period = 250,
148 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
149 		.init = a5xx_gpu_init,
150 		.zapfw = "a508_zap.mdt",
151 	}, {
152 		.rev   = ADRENO_REV(5, 0, 9, ANY_ID),
153 		.revn = 509,
154 		.name = "A509",
155 		.fw = {
156 			[ADRENO_FW_PM4] = "a530_pm4.fw",
157 			[ADRENO_FW_PFP] = "a530_pfp.fw",
158 		},
159 		.gmem = (SZ_256K + SZ_16K),
160 		/*
161 		 * Increase inactive period to 250 to avoid bouncing
162 		 * the GDSC which appears to make it grumpy
163 		 */
164 		.inactive_period = 250,
165 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
166 		.init = a5xx_gpu_init,
167 		/* Adreno 509 uses the same ZAP as 512 */
168 		.zapfw = "a512_zap.mdt",
169 	}, {
170 		.rev   = ADRENO_REV(5, 1, 0, ANY_ID),
171 		.revn = 510,
172 		.name = "A510",
173 		.fw = {
174 			[ADRENO_FW_PM4] = "a530_pm4.fw",
175 			[ADRENO_FW_PFP] = "a530_pfp.fw",
176 		},
177 		.gmem = SZ_256K,
178 		/*
179 		 * Increase inactive period to 250 to avoid bouncing
180 		 * the GDSC which appears to make it grumpy
181 		 */
182 		.inactive_period = 250,
183 		.init = a5xx_gpu_init,
184 	}, {
185 		.rev   = ADRENO_REV(5, 1, 2, ANY_ID),
186 		.revn = 512,
187 		.name = "A512",
188 		.fw = {
189 			[ADRENO_FW_PM4] = "a530_pm4.fw",
190 			[ADRENO_FW_PFP] = "a530_pfp.fw",
191 		},
192 		.gmem = (SZ_256K + SZ_16K),
193 		/*
194 		 * Increase inactive period to 250 to avoid bouncing
195 		 * the GDSC which appears to make it grumpy
196 		 */
197 		.inactive_period = 250,
198 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
199 		.init = a5xx_gpu_init,
200 		.zapfw = "a512_zap.mdt",
201 	}, {
202 		.rev = ADRENO_REV(5, 3, 0, 2),
203 		.revn = 530,
204 		.name = "A530",
205 		.fw = {
206 			[ADRENO_FW_PM4] = "a530_pm4.fw",
207 			[ADRENO_FW_PFP] = "a530_pfp.fw",
208 			[ADRENO_FW_GPMU] = "a530v3_gpmu.fw2",
209 		},
210 		.gmem = SZ_1M,
211 		/*
212 		 * Increase inactive period to 250 to avoid bouncing
213 		 * the GDSC which appears to make it grumpy
214 		 */
215 		.inactive_period = 250,
216 		.quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
217 			ADRENO_QUIRK_FAULT_DETECT_MASK,
218 		.init = a5xx_gpu_init,
219 		.zapfw = "a530_zap.mdt",
220 	}, {
221 		.rev = ADRENO_REV(5, 4, 0, ANY_ID),
222 		.revn = 540,
223 		.name = "A540",
224 		.fw = {
225 			[ADRENO_FW_PM4] = "a530_pm4.fw",
226 			[ADRENO_FW_PFP] = "a530_pfp.fw",
227 			[ADRENO_FW_GPMU] = "a540_gpmu.fw2",
228 		},
229 		.gmem = SZ_1M,
230 		/*
231 		 * Increase inactive period to 250 to avoid bouncing
232 		 * the GDSC which appears to make it grumpy
233 		 */
234 		.inactive_period = 250,
235 		.quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
236 		.init = a5xx_gpu_init,
237 		.zapfw = "a540_zap.mdt",
238 	}, {
239 		.rev = ADRENO_REV(6, 1, 8, ANY_ID),
240 		.revn = 618,
241 		.name = "A618",
242 		.fw = {
243 			[ADRENO_FW_SQE] = "a630_sqe.fw",
244 			[ADRENO_FW_GMU] = "a630_gmu.bin",
245 		},
246 		.gmem = SZ_512K,
247 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
248 		.init = a6xx_gpu_init,
249 	}, {
250 		.rev = ADRENO_REV(6, 3, 0, ANY_ID),
251 		.revn = 630,
252 		.name = "A630",
253 		.fw = {
254 			[ADRENO_FW_SQE] = "a630_sqe.fw",
255 			[ADRENO_FW_GMU] = "a630_gmu.bin",
256 		},
257 		.gmem = SZ_1M,
258 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
259 		.init = a6xx_gpu_init,
260 		.zapfw = "a630_zap.mdt",
261 		.hwcg = a630_hwcg,
262 	}, {
263 		.rev = ADRENO_REV(6, 4, 0, ANY_ID),
264 		.revn = 640,
265 		.name = "A640",
266 		.fw = {
267 			[ADRENO_FW_SQE] = "a630_sqe.fw",
268 			[ADRENO_FW_GMU] = "a640_gmu.bin",
269 		},
270 		.gmem = SZ_1M,
271 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
272 		.init = a6xx_gpu_init,
273 		.zapfw = "a640_zap.mdt",
274 		.hwcg = a640_hwcg,
275 	}, {
276 		.rev = ADRENO_REV(6, 5, 0, ANY_ID),
277 		.revn = 650,
278 		.name = "A650",
279 		.fw = {
280 			[ADRENO_FW_SQE] = "a650_sqe.fw",
281 			[ADRENO_FW_GMU] = "a650_gmu.bin",
282 		},
283 		.gmem = SZ_1M + SZ_128K,
284 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
285 		.init = a6xx_gpu_init,
286 		.zapfw = "a650_zap.mdt",
287 		.hwcg = a650_hwcg,
288 	}, {
289 		.rev = ADRENO_REV(6, 6, 0, ANY_ID),
290 		.revn = 660,
291 		.name = "A660",
292 		.fw = {
293 			[ADRENO_FW_SQE] = "a660_sqe.fw",
294 			[ADRENO_FW_GMU] = "a660_gmu.bin",
295 		},
296 		.gmem = SZ_1M + SZ_512K,
297 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
298 		.init = a6xx_gpu_init,
299 		.zapfw = "a660_zap.mdt",
300 		.hwcg = a660_hwcg,
301 	}, {
302 		.rev = ADRENO_REV(6, 3, 5, ANY_ID),
303 		.name = "Adreno 7c Gen 3",
304 		.fw = {
305 			[ADRENO_FW_SQE] = "a660_sqe.fw",
306 			[ADRENO_FW_GMU] = "a660_gmu.bin",
307 		},
308 		.gmem = SZ_512K,
309 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
310 		.init = a6xx_gpu_init,
311 		.hwcg = a660_hwcg,
312 	}, {
313 		.rev = ADRENO_REV(6, 8, 0, ANY_ID),
314 		.revn = 680,
315 		.name = "A680",
316 		.fw = {
317 			[ADRENO_FW_SQE] = "a630_sqe.fw",
318 			[ADRENO_FW_GMU] = "a640_gmu.bin",
319 		},
320 		.gmem = SZ_2M,
321 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
322 		.init = a6xx_gpu_init,
323 		.zapfw = "a640_zap.mdt",
324 		.hwcg = a640_hwcg,
325 	},
326 };
327 
328 MODULE_FIRMWARE("qcom/a300_pm4.fw");
329 MODULE_FIRMWARE("qcom/a300_pfp.fw");
330 MODULE_FIRMWARE("qcom/a330_pm4.fw");
331 MODULE_FIRMWARE("qcom/a330_pfp.fw");
332 MODULE_FIRMWARE("qcom/a420_pm4.fw");
333 MODULE_FIRMWARE("qcom/a420_pfp.fw");
334 MODULE_FIRMWARE("qcom/a530_pm4.fw");
335 MODULE_FIRMWARE("qcom/a530_pfp.fw");
336 MODULE_FIRMWARE("qcom/a530v3_gpmu.fw2");
337 MODULE_FIRMWARE("qcom/a530_zap.mdt");
338 MODULE_FIRMWARE("qcom/a530_zap.b00");
339 MODULE_FIRMWARE("qcom/a530_zap.b01");
340 MODULE_FIRMWARE("qcom/a530_zap.b02");
341 MODULE_FIRMWARE("qcom/a630_sqe.fw");
342 MODULE_FIRMWARE("qcom/a630_gmu.bin");
343 MODULE_FIRMWARE("qcom/a630_zap.mbn");
344 
_rev_match(uint8_t entry,uint8_t id)345 static inline bool _rev_match(uint8_t entry, uint8_t id)
346 {
347 	return (entry == ANY_ID) || (entry == id);
348 }
349 
adreno_cmp_rev(struct adreno_rev rev1,struct adreno_rev rev2)350 bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2)
351 {
352 
353 	return _rev_match(rev1.core, rev2.core) &&
354 		_rev_match(rev1.major, rev2.major) &&
355 		_rev_match(rev1.minor, rev2.minor) &&
356 		_rev_match(rev1.patchid, rev2.patchid);
357 }
358 
adreno_info(struct adreno_rev rev)359 const struct adreno_info *adreno_info(struct adreno_rev rev)
360 {
361 	int i;
362 
363 	/* identify gpu: */
364 	for (i = 0; i < ARRAY_SIZE(gpulist); i++) {
365 		const struct adreno_info *info = &gpulist[i];
366 		if (adreno_cmp_rev(info->rev, rev))
367 			return info;
368 	}
369 
370 	return NULL;
371 }
372 
adreno_load_gpu(struct drm_device * dev)373 struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
374 {
375 	struct msm_drm_private *priv = dev->dev_private;
376 	struct platform_device *pdev = priv->gpu_pdev;
377 	struct msm_gpu *gpu = NULL;
378 	struct adreno_gpu *adreno_gpu;
379 	int ret;
380 
381 	if (pdev)
382 		gpu = dev_to_gpu(&pdev->dev);
383 
384 	if (!gpu) {
385 		dev_err_once(dev->dev, "no GPU device was found\n");
386 		return NULL;
387 	}
388 
389 	adreno_gpu = to_adreno_gpu(gpu);
390 
391 	/*
392 	 * The number one reason for HW init to fail is if the firmware isn't
393 	 * loaded yet. Try that first and don't bother continuing on
394 	 * otherwise
395 	 */
396 
397 	ret = adreno_load_fw(adreno_gpu);
398 	if (ret)
399 		return NULL;
400 
401 	/*
402 	 * Now that we have firmware loaded, and are ready to begin
403 	 * booting the gpu, go ahead and enable runpm:
404 	 */
405 	pm_runtime_enable(&pdev->dev);
406 
407 	ret = pm_runtime_get_sync(&pdev->dev);
408 	if (ret < 0) {
409 		pm_runtime_put_noidle(&pdev->dev);
410 		DRM_DEV_ERROR(dev->dev, "Couldn't power up the GPU: %d\n", ret);
411 		goto err_disable_rpm;
412 	}
413 
414 	mutex_lock(&gpu->lock);
415 	ret = msm_gpu_hw_init(gpu);
416 	mutex_unlock(&gpu->lock);
417 	if (ret) {
418 		DRM_DEV_ERROR(dev->dev, "gpu hw init failed: %d\n", ret);
419 		goto err_put_rpm;
420 	}
421 
422 	pm_runtime_put_autosuspend(&pdev->dev);
423 
424 #ifdef CONFIG_DEBUG_FS
425 	if (gpu->funcs->debugfs_init) {
426 		gpu->funcs->debugfs_init(gpu, dev->primary);
427 		gpu->funcs->debugfs_init(gpu, dev->render);
428 	}
429 #endif
430 
431 	return gpu;
432 
433 err_put_rpm:
434 	pm_runtime_put_sync_suspend(&pdev->dev);
435 err_disable_rpm:
436 	pm_runtime_disable(&pdev->dev);
437 
438 	return NULL;
439 }
440 
set_gpu_pdev(struct drm_device * dev,struct platform_device * pdev)441 static void set_gpu_pdev(struct drm_device *dev,
442 		struct platform_device *pdev)
443 {
444 	struct msm_drm_private *priv = dev->dev_private;
445 	priv->gpu_pdev = pdev;
446 }
447 
find_chipid(struct device * dev,struct adreno_rev * rev)448 static int find_chipid(struct device *dev, struct adreno_rev *rev)
449 {
450 	struct device_node *node = dev->of_node;
451 	const char *compat;
452 	int ret;
453 	u32 chipid;
454 
455 	/* first search the compat strings for qcom,adreno-XYZ.W: */
456 	ret = of_property_read_string_index(node, "compatible", 0, &compat);
457 	if (ret == 0) {
458 		unsigned int r, patch;
459 
460 		if (sscanf(compat, "qcom,adreno-%u.%u", &r, &patch) == 2 ||
461 		    sscanf(compat, "amd,imageon-%u.%u", &r, &patch) == 2) {
462 			rev->core = r / 100;
463 			r %= 100;
464 			rev->major = r / 10;
465 			r %= 10;
466 			rev->minor = r;
467 			rev->patchid = patch;
468 
469 			return 0;
470 		}
471 	}
472 
473 	/* and if that fails, fall back to legacy "qcom,chipid" property: */
474 	ret = of_property_read_u32(node, "qcom,chipid", &chipid);
475 	if (ret) {
476 		DRM_DEV_ERROR(dev, "could not parse qcom,chipid: %d\n", ret);
477 		return ret;
478 	}
479 
480 	rev->core = (chipid >> 24) & 0xff;
481 	rev->major = (chipid >> 16) & 0xff;
482 	rev->minor = (chipid >> 8) & 0xff;
483 	rev->patchid = (chipid & 0xff);
484 
485 	dev_warn(dev, "Using legacy qcom,chipid binding!\n");
486 	dev_warn(dev, "Use compatible qcom,adreno-%u%u%u.%u instead.\n",
487 		rev->core, rev->major, rev->minor, rev->patchid);
488 
489 	return 0;
490 }
491 
adreno_bind(struct device * dev,struct device * master,void * data)492 static int adreno_bind(struct device *dev, struct device *master, void *data)
493 {
494 	static struct adreno_platform_config config = {};
495 	const struct adreno_info *info;
496 	struct drm_device *drm = dev_get_drvdata(master);
497 	struct msm_drm_private *priv = drm->dev_private;
498 	struct msm_gpu *gpu;
499 	int ret;
500 
501 	ret = find_chipid(dev, &config.rev);
502 	if (ret)
503 		return ret;
504 
505 	dev->platform_data = &config;
506 	set_gpu_pdev(drm, to_platform_device(dev));
507 
508 	info = adreno_info(config.rev);
509 
510 	if (!info) {
511 		dev_warn(drm->dev, "Unknown GPU revision: %u.%u.%u.%u\n",
512 			config.rev.core, config.rev.major,
513 			config.rev.minor, config.rev.patchid);
514 		return -ENXIO;
515 	}
516 
517 	DBG("Found GPU: %u.%u.%u.%u", config.rev.core, config.rev.major,
518 		config.rev.minor, config.rev.patchid);
519 
520 	priv->is_a2xx = config.rev.core == 2;
521 	priv->has_cached_coherent = config.rev.core >= 6;
522 
523 	gpu = info->init(drm);
524 	if (IS_ERR(gpu)) {
525 		dev_warn(drm->dev, "failed to load adreno gpu\n");
526 		return PTR_ERR(gpu);
527 	}
528 
529 	return 0;
530 }
531 
adreno_unbind(struct device * dev,struct device * master,void * data)532 static void adreno_unbind(struct device *dev, struct device *master,
533 		void *data)
534 {
535 	struct msm_gpu *gpu = dev_to_gpu(dev);
536 
537 	pm_runtime_force_suspend(dev);
538 	gpu->funcs->destroy(gpu);
539 
540 	set_gpu_pdev(dev_get_drvdata(master), NULL);
541 }
542 
543 static const struct component_ops a3xx_ops = {
544 		.bind   = adreno_bind,
545 		.unbind = adreno_unbind,
546 };
547 
adreno_device_register_headless(void)548 static void adreno_device_register_headless(void)
549 {
550 	/* on imx5, we don't have a top-level mdp/dpu node
551 	 * this creates a dummy node for the driver for that case
552 	 */
553 	struct platform_device_info dummy_info = {
554 		.parent = NULL,
555 		.name = "msm",
556 		.id = -1,
557 		.res = NULL,
558 		.num_res = 0,
559 		.data = NULL,
560 		.size_data = 0,
561 		.dma_mask = ~0,
562 	};
563 	platform_device_register_full(&dummy_info);
564 }
565 
adreno_probe(struct platform_device * pdev)566 static int adreno_probe(struct platform_device *pdev)
567 {
568 
569 	int ret;
570 
571 	ret = component_add(&pdev->dev, &a3xx_ops);
572 	if (ret)
573 		return ret;
574 
575 	if (of_device_is_compatible(pdev->dev.of_node, "amd,imageon"))
576 		adreno_device_register_headless();
577 
578 	return 0;
579 }
580 
adreno_remove(struct platform_device * pdev)581 static int adreno_remove(struct platform_device *pdev)
582 {
583 	component_del(&pdev->dev, &a3xx_ops);
584 	return 0;
585 }
586 
adreno_shutdown(struct platform_device * pdev)587 static void adreno_shutdown(struct platform_device *pdev)
588 {
589 	pm_runtime_force_suspend(&pdev->dev);
590 }
591 
592 static const struct of_device_id dt_match[] = {
593 	{ .compatible = "qcom,adreno" },
594 	{ .compatible = "qcom,adreno-3xx" },
595 	/* for compatibility with imx5 gpu: */
596 	{ .compatible = "amd,imageon" },
597 	/* for backwards compat w/ downstream kgsl DT files: */
598 	{ .compatible = "qcom,kgsl-3d0" },
599 	{}
600 };
601 
602 #ifdef CONFIG_PM
adreno_resume(struct device * dev)603 static int adreno_resume(struct device *dev)
604 {
605 	struct msm_gpu *gpu = dev_to_gpu(dev);
606 
607 	return gpu->funcs->pm_resume(gpu);
608 }
609 
adreno_suspend(struct device * dev)610 static int adreno_suspend(struct device *dev)
611 {
612 	struct msm_gpu *gpu = dev_to_gpu(dev);
613 
614 	return gpu->funcs->pm_suspend(gpu);
615 }
616 #endif
617 
618 static const struct dev_pm_ops adreno_pm_ops = {
619 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
620 	SET_RUNTIME_PM_OPS(adreno_suspend, adreno_resume, NULL)
621 };
622 
623 static struct platform_driver adreno_driver = {
624 	.probe = adreno_probe,
625 	.remove = adreno_remove,
626 	.shutdown = adreno_shutdown,
627 	.driver = {
628 		.name = "adreno",
629 		.of_match_table = dt_match,
630 		.pm = &adreno_pm_ops,
631 	},
632 };
633 
adreno_register(void)634 void __init adreno_register(void)
635 {
636 	platform_driver_register(&adreno_driver);
637 }
638 
adreno_unregister(void)639 void __exit adreno_unregister(void)
640 {
641 	platform_driver_unregister(&adreno_driver);
642 }
643