2 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
3 * Copyright (C) 2017 Linaro Ltd.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 and
7 * only version 2 as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <linux/clk.h>
16 #include <linux/init.h>
17 #include <linux/ioctl.h>
18 #include <linux/list.h>
19 #include <linux/module.h>
20 #include <linux/of_device.h>
21 #include <linux/platform_device.h>
22 #include <linux/slab.h>
23 #include <linux/types.h>
24 #include <linux/pm_runtime.h>
25 #include <media/videobuf2-v4l2.h>
26 #include <media/v4l2-mem2mem.h>
27 #include <media/v4l2-ioctl.h>
34 static void venus_event_notify(struct venus_core *core, u32 event)
36 struct venus_inst *inst;
39 case EVT_SYS_WATCHDOG_TIMEOUT:
46 mutex_lock(&core->lock);
47 core->sys_error = true;
48 list_for_each_entry(inst, &core->instances, list)
49 inst->ops->event_notify(inst, EVT_SESSION_ERROR, NULL);
50 mutex_unlock(&core->lock);
52 disable_irq_nosync(core->irq);
55 * Delay recovery to ensure venus has completed any pending cache
56 * operations. Without this sleep, we see device reset when firmware is
57 * unloaded after a system error.
59 schedule_delayed_work(&core->work, msecs_to_jiffies(100));
62 static const struct hfi_core_ops venus_core_ops = {
63 .event_notify = venus_event_notify,
66 static void venus_sys_error_handler(struct work_struct *work)
68 struct venus_core *core =
69 container_of(work, struct venus_core, work.work);
72 dev_warn(core->dev, "system error has occurred, starting recovery!\n");
74 pm_runtime_get_sync(core->dev);
76 hfi_core_deinit(core, true);
78 mutex_lock(&core->lock);
79 venus_shutdown(core->dev);
81 pm_runtime_put_sync(core->dev);
83 ret |= hfi_create(core, &venus_core_ops);
85 pm_runtime_get_sync(core->dev);
87 ret |= venus_boot(core->dev, core->res->fwname);
89 ret |= hfi_core_resume(core, true);
91 enable_irq(core->irq);
93 mutex_unlock(&core->lock);
95 ret |= hfi_core_init(core);
97 pm_runtime_put_sync(core->dev);
100 disable_irq_nosync(core->irq);
101 dev_warn(core->dev, "recovery failed (%d)\n", ret);
102 schedule_delayed_work(&core->work, msecs_to_jiffies(10));
106 mutex_lock(&core->lock);
107 core->sys_error = false;
108 mutex_unlock(&core->lock);
111 static int venus_clks_get(struct venus_core *core)
113 const struct venus_resources *res = core->res;
114 struct device *dev = core->dev;
117 for (i = 0; i < res->clks_num; i++) {
118 core->clks[i] = devm_clk_get(dev, res->clks[i]);
119 if (IS_ERR(core->clks[i]))
120 return PTR_ERR(core->clks[i]);
126 static int venus_clks_enable(struct venus_core *core)
128 const struct venus_resources *res = core->res;
132 for (i = 0; i < res->clks_num; i++) {
133 ret = clk_prepare_enable(core->clks[i]);
141 clk_disable_unprepare(core->clks[i]);
146 static void venus_clks_disable(struct venus_core *core)
148 const struct venus_resources *res = core->res;
149 unsigned int i = res->clks_num;
152 clk_disable_unprepare(core->clks[i]);
155 static u32 to_v4l2_codec_type(u32 codec)
158 case HFI_VIDEO_CODEC_H264:
159 return V4L2_PIX_FMT_H264;
160 case HFI_VIDEO_CODEC_H263:
161 return V4L2_PIX_FMT_H263;
162 case HFI_VIDEO_CODEC_MPEG1:
163 return V4L2_PIX_FMT_MPEG1;
164 case HFI_VIDEO_CODEC_MPEG2:
165 return V4L2_PIX_FMT_MPEG2;
166 case HFI_VIDEO_CODEC_MPEG4:
167 return V4L2_PIX_FMT_MPEG4;
168 case HFI_VIDEO_CODEC_VC1:
169 return V4L2_PIX_FMT_VC1_ANNEX_G;
170 case HFI_VIDEO_CODEC_VP8:
171 return V4L2_PIX_FMT_VP8;
172 case HFI_VIDEO_CODEC_VP9:
173 return V4L2_PIX_FMT_VP9;
174 case HFI_VIDEO_CODEC_DIVX:
175 case HFI_VIDEO_CODEC_DIVX_311:
176 return V4L2_PIX_FMT_XVID;
182 static int venus_enumerate_codecs(struct venus_core *core, u32 type)
184 const struct hfi_inst_ops dummy_ops = {};
185 struct venus_inst *inst;
190 if (core->res->hfi_version != HFI_VERSION_1XX)
193 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
197 mutex_init(&inst->lock);
199 inst->session_type = type;
200 if (type == VIDC_SESSION_TYPE_DEC)
201 codecs = core->dec_codecs;
203 codecs = core->enc_codecs;
205 ret = hfi_session_create(inst, &dummy_ops);
209 for (i = 0; i < MAX_CODEC_NUM; i++) {
210 codec = (1 << i) & codecs;
214 ret = hfi_session_init(inst, to_v4l2_codec_type(codec));
218 ret = hfi_session_deinit(inst);
224 hfi_session_destroy(inst);
226 mutex_destroy(&inst->lock);
232 static int venus_probe(struct platform_device *pdev)
234 struct device *dev = &pdev->dev;
235 struct venus_core *core;
239 core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
244 platform_set_drvdata(pdev, core);
246 r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
247 core->base = devm_ioremap_resource(dev, r);
248 if (IS_ERR(core->base))
249 return PTR_ERR(core->base);
251 core->irq = platform_get_irq(pdev, 0);
255 core->res = of_device_get_match_data(dev);
259 ret = venus_clks_get(core);
263 ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
267 if (!dev->dma_parms) {
268 dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
273 dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
275 INIT_LIST_HEAD(&core->instances);
276 mutex_init(&core->lock);
277 INIT_DELAYED_WORK(&core->work, venus_sys_error_handler);
279 ret = devm_request_threaded_irq(dev, core->irq, hfi_isr, hfi_isr_thread,
280 IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
285 ret = hfi_create(core, &venus_core_ops);
289 pm_runtime_enable(dev);
291 ret = pm_runtime_get_sync(dev);
293 goto err_runtime_disable;
295 ret = venus_boot(dev, core->res->fwname);
297 goto err_runtime_disable;
299 ret = hfi_core_resume(core, true);
301 goto err_venus_shutdown;
303 ret = hfi_core_init(core);
305 goto err_venus_shutdown;
307 ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_DEC);
309 goto err_venus_shutdown;
311 ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_ENC);
313 goto err_venus_shutdown;
315 ret = v4l2_device_register(dev, &core->v4l2_dev);
317 goto err_core_deinit;
319 ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
321 goto err_dev_unregister;
323 ret = pm_runtime_put_sync(dev);
325 pm_runtime_get_noresume(dev);
326 goto err_dev_unregister;
332 v4l2_device_unregister(&core->v4l2_dev);
334 hfi_core_deinit(core, false);
338 pm_runtime_put_noidle(dev);
339 pm_runtime_set_suspended(dev);
340 pm_runtime_disable(dev);
345 static int venus_remove(struct platform_device *pdev)
347 struct venus_core *core = platform_get_drvdata(pdev);
348 struct device *dev = core->dev;
351 ret = pm_runtime_get_sync(dev);
354 ret = hfi_core_deinit(core, true);
359 of_platform_depopulate(dev);
361 pm_runtime_put_sync(dev);
362 pm_runtime_disable(dev);
364 v4l2_device_unregister(&core->v4l2_dev);
369 static __maybe_unused int venus_runtime_suspend(struct device *dev)
371 struct venus_core *core = dev_get_drvdata(dev);
374 ret = hfi_core_suspend(core);
376 venus_clks_disable(core);
381 static __maybe_unused int venus_runtime_resume(struct device *dev)
383 struct venus_core *core = dev_get_drvdata(dev);
386 ret = venus_clks_enable(core);
390 ret = hfi_core_resume(core, false);
392 goto err_clks_disable;
397 venus_clks_disable(core);
401 static const struct dev_pm_ops venus_pm_ops = {
402 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
403 pm_runtime_force_resume)
404 SET_RUNTIME_PM_OPS(venus_runtime_suspend, venus_runtime_resume, NULL)
407 static const struct freq_tbl msm8916_freq_table[] = {
408 { 352800, 228570000 }, /* 1920x1088 @ 30 + 1280x720 @ 30 */
409 { 244800, 160000000 }, /* 1920x1088 @ 30 */
410 { 108000, 100000000 }, /* 1280x720 @ 30 */
413 static const struct reg_val msm8916_reg_preset[] = {
414 { 0xe0020, 0x05555556 },
415 { 0xe0024, 0x05555556 },
416 { 0x80124, 0x00000003 },
419 static const struct venus_resources msm8916_res = {
420 .freq_tbl = msm8916_freq_table,
421 .freq_tbl_size = ARRAY_SIZE(msm8916_freq_table),
422 .reg_tbl = msm8916_reg_preset,
423 .reg_tbl_size = ARRAY_SIZE(msm8916_reg_preset),
424 .clks = { "core", "iface", "bus", },
426 .max_load = 352800, /* 720p@30 + 1080p@30 */
427 .hfi_version = HFI_VERSION_1XX,
428 .vmem_id = VIDC_RESOURCE_NONE,
431 .dma_mask = 0xddc00000 - 1,
432 .fwname = "/*(DEBLOBBED)*/",
435 static const struct freq_tbl msm8996_freq_table[] = {
436 { 1944000, 520000000 }, /* 4k UHD @ 60 (decode only) */
437 { 972000, 520000000 }, /* 4k UHD @ 30 */
438 { 489600, 346666667 }, /* 1080p @ 60 */
439 { 244800, 150000000 }, /* 1080p @ 30 */
440 { 108000, 75000000 }, /* 720p @ 30 */
443 static const struct reg_val msm8996_reg_preset[] = {
444 { 0x80010, 0xffffffff },
445 { 0x80018, 0x00001556 },
446 { 0x8001C, 0x00001556 },
449 static const struct venus_resources msm8996_res = {
450 .freq_tbl = msm8996_freq_table,
451 .freq_tbl_size = ARRAY_SIZE(msm8996_freq_table),
452 .reg_tbl = msm8996_reg_preset,
453 .reg_tbl_size = ARRAY_SIZE(msm8996_reg_preset),
454 .clks = {"core", "iface", "bus", "mbus" },
457 .hfi_version = HFI_VERSION_3XX,
458 .vmem_id = VIDC_RESOURCE_NONE,
461 .dma_mask = 0xddc00000 - 1,
462 .fwname = "/*(DEBLOBBED)*/",
465 static const struct freq_tbl sdm845_freq_table[] = {
466 { 1944000, 380000000 }, /* 4k UHD @ 60 */
467 { 972000, 320000000 }, /* 4k UHD @ 30 */
468 { 489600, 200000000 }, /* 1080p @ 60 */
469 { 244800, 100000000 }, /* 1080p @ 30 */
472 static const struct venus_resources sdm845_res = {
473 .freq_tbl = sdm845_freq_table,
474 .freq_tbl_size = ARRAY_SIZE(sdm845_freq_table),
475 .clks = {"core", "iface", "bus" },
478 .hfi_version = HFI_VERSION_4XX,
479 .vmem_id = VIDC_RESOURCE_NONE,
482 .dma_mask = 0xe0000000 - 1,
483 .fwname = "/*(DEBLOBBED)*/",
486 static const struct of_device_id venus_dt_match[] = {
487 { .compatible = "qcom,msm8916-venus", .data = &msm8916_res, },
488 { .compatible = "qcom,msm8996-venus", .data = &msm8996_res, },
489 { .compatible = "qcom,sdm845-venus", .data = &sdm845_res, },
492 MODULE_DEVICE_TABLE(of, venus_dt_match);
494 static struct platform_driver qcom_venus_driver = {
495 .probe = venus_probe,
496 .remove = venus_remove,
498 .name = "qcom-venus",
499 .of_match_table = venus_dt_match,
503 module_platform_driver(qcom_venus_driver);
505 MODULE_ALIAS("platform:qcom-venus");
506 MODULE_DESCRIPTION("Qualcomm Venus video encoder and decoder driver");
507 MODULE_LICENSE("GPL v2");