1 // SPDX-License-Identifier: GPL-2.0-only
18 #include <soc/tegra/pmc.h>
52 	writel(value, vic->regs + offset);  in vic_writel()
60 	err = clk_prepare_enable(vic->clk);  in vic_runtime_resume()
66 	err = reset_control_deassert(vic->rst);  in vic_runtime_resume()
75 	clk_disable_unprepare(vic->clk);  in vic_runtime_resume()
84 	err = reset_control_assert(vic->rst);  in vic_runtime_suspend()
90 	clk_disable_unprepare(vic->clk);  in vic_runtime_suspend()
92 	vic->booted = false;  in vic_runtime_suspend()
100 	struct iommu_fwspec *spec = dev_iommu_fwspec_get(vic->dev);  in vic_boot()
106 	if (vic->booted)  in vic_boot()
110 	if (vic->config->supports_sid && spec) {  in vic_boot()
117 		if (spec->num_ids > 0) {  in vic_boot()
118 			value = spec->ids[0] & 0xffff;  in vic_boot()
132 	err = falcon_boot(&vic->falcon);  in vic_boot()
136 	hdr = vic->falcon.firmware.virt;  in vic_boot()
138 	hdr = vic->falcon.firmware.virt +  in vic_boot()
142 	falcon_execute_method(&vic->falcon, VIC_SET_APPLICATION_ID, 1);  in vic_boot()
143 	falcon_execute_method(&vic->falcon, VIC_SET_FCE_UCODE_SIZE,  in vic_boot()
145 	falcon_execute_method(&vic->falcon, VIC_SET_FCE_UCODE_OFFSET,  in vic_boot()
146 			      (vic->falcon.firmware.iova + fce_bin_data_offset)  in vic_boot()
149 	err = falcon_wait_idle(&vic->falcon);  in vic_boot()
151 		dev_err(vic->dev,  in vic_boot()
156 	vic->booted = true;  in vic_boot()
164 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_init()
165 	struct tegra_drm *tegra = dev->dev_private;  in vic_init()
170 	if (err < 0 && err != -ENODEV) {  in vic_init()
171 		dev_err(vic->dev, "failed to attach to domain: %d\n", err);  in vic_init()
175 	vic->channel = host1x_channel_request(client);  in vic_init()
176 	if (!vic->channel) {  in vic_init()
177 		err = -ENOMEM;  in vic_init()
181 	client->syncpts[0] = host1x_syncpt_request(client, 0);  in vic_init()
182 	if (!client->syncpts[0]) {  in vic_init()
183 		err = -ENOMEM;  in vic_init()
195 	client->dev->dma_parms = client->host->dma_parms;  in vic_init()
200 	host1x_syncpt_free(client->syncpts[0]);  in vic_init()
202 	host1x_channel_put(vic->channel);  in vic_init()
212 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_exit()
213 	struct tegra_drm *tegra = dev->dev_private;  in vic_exit()
218 	client->dev->dma_parms = NULL;  in vic_exit()
224 	host1x_syncpt_free(client->syncpts[0]);  in vic_exit()
225 	host1x_channel_put(vic->channel);  in vic_exit()
228 	if (client->group) {  in vic_exit()
229 		dma_unmap_single(vic->dev, vic->falcon.firmware.phys,  in vic_exit()
230 				 vic->falcon.firmware.size, DMA_TO_DEVICE);  in vic_exit()
231 		tegra_drm_free(tegra, vic->falcon.firmware.size,  in vic_exit()
232 			       vic->falcon.firmware.virt,  in vic_exit()
233 			       vic->falcon.firmware.iova);  in vic_exit()
235 		dma_free_coherent(vic->dev, vic->falcon.firmware.size,  in vic_exit()
236 				  vic->falcon.firmware.virt,  in vic_exit()
237 				  vic->falcon.firmware.iova);  in vic_exit()
250 	struct host1x_client *client = &vic->client.base;  in vic_load_firmware()
251 	struct tegra_drm *tegra = vic->client.drm;  in vic_load_firmware()
257 	if (vic->falcon.firmware.virt)  in vic_load_firmware()
260 	err = falcon_read_firmware(&vic->falcon, vic->config->firmware);  in vic_load_firmware()
264 	size = vic->falcon.firmware.size;  in vic_load_firmware()
266 	if (!client->group) {  in vic_load_firmware()
267 		virt = dma_alloc_coherent(vic->dev, size, &iova, GFP_KERNEL);  in vic_load_firmware()
269 		err = dma_mapping_error(vic->dev, iova);  in vic_load_firmware()
276 	vic->falcon.firmware.virt = virt;  in vic_load_firmware()
277 	vic->falcon.firmware.iova = iova;  in vic_load_firmware()
279 	err = falcon_load_firmware(&vic->falcon);  in vic_load_firmware()
288 	if (client->group) {  in vic_load_firmware()
291 		phys = dma_map_single(vic->dev, virt, size, DMA_TO_DEVICE);  in vic_load_firmware()
293 		err = dma_mapping_error(vic->dev, phys);  in vic_load_firmware()
297 		vic->falcon.firmware.phys = phys;  in vic_load_firmware()
303 	if (!client->group)  in vic_load_firmware()
304 		dma_free_coherent(vic->dev, size, virt, iova);  in vic_load_firmware()
317 	err = pm_runtime_resume_and_get(vic->dev);  in vic_open_channel()
329 	context->channel = host1x_channel_get(vic->channel);  in vic_open_channel()
330 	if (!context->channel) {  in vic_open_channel()
331 		err = -ENOMEM;  in vic_open_channel()
338 	pm_runtime_put(vic->dev);  in vic_open_channel()
344 	struct vic *vic = to_vic(context->client);  in vic_close_channel()
346 	host1x_channel_put(context->channel);  in vic_close_channel()
348 	pm_runtime_put(vic->dev);  in vic_close_channel()
365 #define NVIDIA_TEGRA_210_VIC_FIRMWARE "nvidia/tegra210/vic04_ucode.bin"
390 	{ .compatible = "nvidia,tegra124-vic", .data = &vic_t124_config },
391 	{ .compatible = "nvidia,tegra210-vic", .data = &vic_t210_config },
392 	{ .compatible = "nvidia,tegra186-vic", .data = &vic_t186_config },
393 	{ .compatible = "nvidia,tegra194-vic", .data = &vic_t194_config },
400 	struct device *dev = &pdev->dev;  in vic_probe()
407 	err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask);  in vic_probe()
409 		dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err);  in vic_probe()
415 		return -ENOMEM;  in vic_probe()
417 	vic->config = of_device_get_match_data(dev);  in vic_probe()
421 		return -ENOMEM;  in vic_probe()
425 		dev_err(&pdev->dev, "failed to get registers\n");  in vic_probe()
426 		return -ENXIO;  in vic_probe()
429 	vic->regs = devm_ioremap_resource(dev, regs);  in vic_probe()
430 	if (IS_ERR(vic->regs))  in vic_probe()
431 		return PTR_ERR(vic->regs);  in vic_probe()
433 	vic->clk = devm_clk_get(dev, NULL);  in vic_probe()
434 	if (IS_ERR(vic->clk)) {  in vic_probe()
435 		dev_err(&pdev->dev, "failed to get clock\n");  in vic_probe()
436 		return PTR_ERR(vic->clk);  in vic_probe()
439 	if (!dev->pm_domain) {  in vic_probe()
440 		vic->rst = devm_reset_control_get(dev, "vic");  in vic_probe()
441 		if (IS_ERR(vic->rst)) {  in vic_probe()
442 			dev_err(&pdev->dev, "failed to get reset\n");  in vic_probe()
443 			return PTR_ERR(vic->rst);  in vic_probe()
447 	vic->falcon.dev = dev;  in vic_probe()
448 	vic->falcon.regs = vic->regs;  in vic_probe()
450 	err = falcon_init(&vic->falcon);  in vic_probe()
456 	INIT_LIST_HEAD(&vic->client.base.list);  in vic_probe()
457 	vic->client.base.ops = &vic_client_ops;  in vic_probe()
458 	vic->client.base.dev = dev;  in vic_probe()
459 	vic->client.base.class = HOST1X_CLASS_VIC;  in vic_probe()
460 	vic->client.base.syncpts = syncpts;  in vic_probe()
461 	vic->client.base.num_syncpts = 1;  in vic_probe()
462 	vic->dev = dev;  in vic_probe()
464 	INIT_LIST_HEAD(&vic->client.list);  in vic_probe()
465 	vic->client.version = vic->config->version;  in vic_probe()
466 	vic->client.ops = &vic_ops;  in vic_probe()
468 	err = host1x_client_register(&vic->client.base);  in vic_probe()
474 	pm_runtime_enable(&pdev->dev);  in vic_probe()
475 	if (!pm_runtime_enabled(&pdev->dev)) {  in vic_probe()
476 		err = vic_runtime_resume(&pdev->dev);  in vic_probe()
484 	host1x_client_unregister(&vic->client.base);  in vic_probe()
486 	falcon_exit(&vic->falcon);  in vic_probe()
496 	err = host1x_client_unregister(&vic->client.base);  in vic_remove()
498 		dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",  in vic_remove()
503 	if (pm_runtime_enabled(&pdev->dev))  in vic_remove()
504 		pm_runtime_disable(&pdev->dev);  in vic_remove()
506 		vic_runtime_suspend(&pdev->dev);  in vic_remove()
508 	falcon_exit(&vic->falcon);  in vic_remove()
519 		.name = "tegra-vic",