33 struct nvdec {  struct
46 static inline struct nvdec *to_nvdec(struct tegra_drm_client *client)  in to_nvdec()  argument
48 	return container_of(client, struct nvdec, client);  in to_nvdec()
51 static inline void nvdec_writel(struct nvdec *nvdec, u32 value,  in nvdec_writel()  argument
54 	writel(value, nvdec->regs + offset);  in nvdec_writel()
57 static int nvdec_boot(struct nvdec *nvdec)  in nvdec_boot()  argument
60 	struct iommu_fwspec *spec = dev_iommu_fwspec_get(nvdec->dev);  in nvdec_boot()
65 	if (nvdec->config->supports_sid && spec) {  in nvdec_boot()
69 		nvdec_writel(nvdec, value, NVDEC_TFBIF_TRANSCFG);  in nvdec_boot()
74 			nvdec_writel(nvdec, value, VIC_THI_STREAMID0);  in nvdec_boot()
75 			nvdec_writel(nvdec, value, VIC_THI_STREAMID1);  in nvdec_boot()
80 	err = falcon_boot(&nvdec->falcon);  in nvdec_boot()
84 	err = falcon_wait_idle(&nvdec->falcon);  in nvdec_boot()
86 		dev_err(nvdec->dev, "falcon boot timed out\n");  in nvdec_boot()
98 	struct nvdec *nvdec = to_nvdec(drm);  in nvdec_init()  local
103 		dev_err(nvdec->dev, "failed to attach to domain: %d\n", err);  in nvdec_init()
107 	nvdec->channel = host1x_channel_request(client);  in nvdec_init()
108 	if (!nvdec->channel) {  in nvdec_init()
141 	host1x_channel_put(nvdec->channel);  in nvdec_init()
153 	struct nvdec *nvdec = to_nvdec(drm);  in nvdec_exit()  local
167 	host1x_channel_put(nvdec->channel);  in nvdec_exit()
170 	nvdec->channel = NULL;  in nvdec_exit()
173 		dma_unmap_single(nvdec->dev, nvdec->falcon.firmware.phys,  in nvdec_exit()
174 				 nvdec->falcon.firmware.size, DMA_TO_DEVICE);  in nvdec_exit()
175 		tegra_drm_free(tegra, nvdec->falcon.firmware.size,  in nvdec_exit()
176 			       nvdec->falcon.firmware.virt,  in nvdec_exit()
177 			       nvdec->falcon.firmware.iova);  in nvdec_exit()
179 		dma_free_coherent(nvdec->dev, nvdec->falcon.firmware.size,  in nvdec_exit()
180 				  nvdec->falcon.firmware.virt,  in nvdec_exit()
181 				  nvdec->falcon.firmware.iova);  in nvdec_exit()
192 static int nvdec_load_firmware(struct nvdec *nvdec)  in nvdec_load_firmware()  argument
194 	struct host1x_client *client = &nvdec->client.base;  in nvdec_load_firmware()
195 	struct tegra_drm *tegra = nvdec->client.drm;  in nvdec_load_firmware()
201 	if (nvdec->falcon.firmware.virt)  in nvdec_load_firmware()
204 	err = falcon_read_firmware(&nvdec->falcon, nvdec->config->firmware);  in nvdec_load_firmware()
208 	size = nvdec->falcon.firmware.size;  in nvdec_load_firmware()
211 		virt = dma_alloc_coherent(nvdec->dev, size, &iova, GFP_KERNEL);  in nvdec_load_firmware()
213 		err = dma_mapping_error(nvdec->dev, iova);  in nvdec_load_firmware()
220 	nvdec->falcon.firmware.virt = virt;  in nvdec_load_firmware()
221 	nvdec->falcon.firmware.iova = iova;  in nvdec_load_firmware()
223 	err = falcon_load_firmware(&nvdec->falcon);  in nvdec_load_firmware()
235 		phys = dma_map_single(nvdec->dev, virt, size, DMA_TO_DEVICE);  in nvdec_load_firmware()
237 		err = dma_mapping_error(nvdec->dev, phys);  in nvdec_load_firmware()
241 		nvdec->falcon.firmware.phys = phys;  in nvdec_load_firmware()
248 		dma_free_coherent(nvdec->dev, size, virt, iova);  in nvdec_load_firmware()
258 	struct nvdec *nvdec = dev_get_drvdata(dev);  in nvdec_runtime_resume()  local
261 	err = clk_prepare_enable(nvdec->clk);  in nvdec_runtime_resume()
267 	err = nvdec_load_firmware(nvdec);  in nvdec_runtime_resume()
271 	err = nvdec_boot(nvdec);  in nvdec_runtime_resume()
278 	clk_disable_unprepare(nvdec->clk);  in nvdec_runtime_resume()
284 	struct nvdec *nvdec = dev_get_drvdata(dev);  in nvdec_runtime_suspend()  local
286 	host1x_channel_stop(nvdec->channel);  in nvdec_runtime_suspend()
288 	clk_disable_unprepare(nvdec->clk);  in nvdec_runtime_suspend()
296 	struct nvdec *nvdec = to_nvdec(client);  in nvdec_open_channel()  local
298 	context->channel = host1x_channel_get(nvdec->channel);  in nvdec_open_channel()
361 	struct nvdec *nvdec;  in nvdec_probe()  local
372 	nvdec = devm_kzalloc(dev, sizeof(*nvdec), GFP_KERNEL);  in nvdec_probe()
373 	if (!nvdec)  in nvdec_probe()
376 	nvdec->config = of_device_get_match_data(dev);  in nvdec_probe()
382 	nvdec->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);  in nvdec_probe()
383 	if (IS_ERR(nvdec->regs))  in nvdec_probe()
384 		return PTR_ERR(nvdec->regs);  in nvdec_probe()
386 	nvdec->clk = devm_clk_get(dev, NULL);  in nvdec_probe()
387 	if (IS_ERR(nvdec->clk)) {  in nvdec_probe()
389 		return PTR_ERR(nvdec->clk);  in nvdec_probe()
392 	err = clk_set_rate(nvdec->clk, ULONG_MAX);  in nvdec_probe()
402 	nvdec->falcon.dev = dev;  in nvdec_probe()
403 	nvdec->falcon.regs = nvdec->regs;  in nvdec_probe()
405 	err = falcon_init(&nvdec->falcon);  in nvdec_probe()
409 	platform_set_drvdata(pdev, nvdec);  in nvdec_probe()
411 	INIT_LIST_HEAD(&nvdec->client.base.list);  in nvdec_probe()
412 	nvdec->client.base.ops = &nvdec_client_ops;  in nvdec_probe()
413 	nvdec->client.base.dev = dev;  in nvdec_probe()
414 	nvdec->client.base.class = host_class;  in nvdec_probe()
415 	nvdec->client.base.syncpts = syncpts;  in nvdec_probe()
416 	nvdec->client.base.num_syncpts = 1;  in nvdec_probe()
417 	nvdec->dev = dev;  in nvdec_probe()
419 	INIT_LIST_HEAD(&nvdec->client.list);  in nvdec_probe()
420 	nvdec->client.version = nvdec->config->version;  in nvdec_probe()
421 	nvdec->client.ops = &nvdec_ops;  in nvdec_probe()
423 	err = host1x_client_register(&nvdec->client.base);  in nvdec_probe()
432 	falcon_exit(&nvdec->falcon);  in nvdec_probe()
439 	struct nvdec *nvdec = platform_get_drvdata(pdev);  in nvdec_remove()  local
442 	err = host1x_client_unregister(&nvdec->client.base);  in nvdec_remove()
449 	falcon_exit(&nvdec->falcon);  in nvdec_remove()