1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/dma-mapping.h>
19 #include <soc/tegra/pmc.h>
53 	writel(value, vic->regs + offset);  in vic_writel()
61 	err = clk_prepare_enable(vic->clk);  in vic_runtime_resume()
67 	err = reset_control_deassert(vic->rst);  in vic_runtime_resume()
76 	clk_disable_unprepare(vic->clk);  in vic_runtime_resume()
85 	err = reset_control_assert(vic->rst);  in vic_runtime_suspend()
91 	clk_disable_unprepare(vic->clk);  in vic_runtime_suspend()
93 	vic->booted = false;  in vic_runtime_suspend()
101 	struct iommu_fwspec *spec = dev_iommu_fwspec_get(vic->dev);  in vic_boot()
107 	if (vic->booted)  in vic_boot()
111 	if (vic->config->supports_sid && spec) {  in vic_boot()
118 		if (spec->num_ids > 0) {  in vic_boot()
119 			value = spec->ids[0] & 0xffff;  in vic_boot()
133 	err = falcon_boot(&vic->falcon);  in vic_boot()
137 	hdr = vic->falcon.firmware.virt;  in vic_boot()
139 	hdr = vic->falcon.firmware.virt +  in vic_boot()
143 	falcon_execute_method(&vic->falcon, VIC_SET_APPLICATION_ID, 1);  in vic_boot()
144 	falcon_execute_method(&vic->falcon, VIC_SET_FCE_UCODE_SIZE,  in vic_boot()
146 	falcon_execute_method(&vic->falcon, VIC_SET_FCE_UCODE_OFFSET,  in vic_boot()
147 			      (vic->falcon.firmware.iova + fce_bin_data_offset)  in vic_boot()
150 	err = falcon_wait_idle(&vic->falcon);  in vic_boot()
152 		dev_err(vic->dev,  in vic_boot()
157 	vic->booted = true;  in vic_boot()
165 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_init()
166 	struct tegra_drm *tegra = dev->dev_private;  in vic_init()  local
171 	if (err < 0 && err != -ENODEV) {  in vic_init()
172 		dev_err(vic->dev, "failed to attach to domain: %d\n", err);  in vic_init()
176 	vic->channel = host1x_channel_request(client);  in vic_init()
177 	if (!vic->channel) {  in vic_init()
178 		err = -ENOMEM;  in vic_init()
182 	client->syncpts[0] = host1x_syncpt_request(client, 0);  in vic_init()
183 	if (!client->syncpts[0]) {  in vic_init()
184 		err = -ENOMEM;  in vic_init()
188 	err = tegra_drm_register_client(tegra, drm);  in vic_init()
196 	client->dev->dma_parms = client->host->dma_parms;  in vic_init()
201 	host1x_syncpt_free(client->syncpts[0]);  in vic_init()
203 	host1x_channel_put(vic->channel);  in vic_init()
213 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_exit()
214 	struct tegra_drm *tegra = dev->dev_private;  in vic_exit()  local
219 	client->dev->dma_parms = NULL;  in vic_exit()
221 	err = tegra_drm_unregister_client(tegra, drm);  in vic_exit()
225 	host1x_syncpt_free(client->syncpts[0]);  in vic_exit()
226 	host1x_channel_put(vic->channel);  in vic_exit()
229 	if (client->group) {  in vic_exit()
230 		dma_unmap_single(vic->dev, vic->falcon.firmware.phys,  in vic_exit()
231 				 vic->falcon.firmware.size, DMA_TO_DEVICE);  in vic_exit()
232 		tegra_drm_free(tegra, vic->falcon.firmware.size,  in vic_exit()
233 			       vic->falcon.firmware.virt,  in vic_exit()
234 			       vic->falcon.firmware.iova);  in vic_exit()
236 		dma_free_coherent(vic->dev, vic->falcon.firmware.size,  in vic_exit()
237 				  vic->falcon.firmware.virt,  in vic_exit()
238 				  vic->falcon.firmware.iova);  in vic_exit()
251 	struct host1x_client *client = &vic->client.base;  in vic_load_firmware()
252 	struct tegra_drm *tegra = vic->client.drm;  in vic_load_firmware()  local
258 	if (vic->falcon.firmware.virt)  in vic_load_firmware()
261 	err = falcon_read_firmware(&vic->falcon, vic->config->firmware);  in vic_load_firmware()
265 	size = vic->falcon.firmware.size;  in vic_load_firmware()
267 	if (!client->group) {  in vic_load_firmware()
268 		virt = dma_alloc_coherent(vic->dev, size, &iova, GFP_KERNEL);  in vic_load_firmware()
270 			return -ENOMEM;  in vic_load_firmware()
272 		virt = tegra_drm_alloc(tegra, size, &iova);  in vic_load_firmware()
275 	vic->falcon.firmware.virt = virt;  in vic_load_firmware()
276 	vic->falcon.firmware.iova = iova;  in vic_load_firmware()
278 	err = falcon_load_firmware(&vic->falcon);  in vic_load_firmware()
287 	if (client->group) {  in vic_load_firmware()
290 		phys = dma_map_single(vic->dev, virt, size, DMA_TO_DEVICE);  in vic_load_firmware()
292 		err = dma_mapping_error(vic->dev, phys);  in vic_load_firmware()
296 		vic->falcon.firmware.phys = phys;  in vic_load_firmware()
302 	if (!client->group)  in vic_load_firmware()
303 		dma_free_coherent(vic->dev, size, virt, iova);  in vic_load_firmware()
305 		tegra_drm_free(tegra, size, virt, iova);  in vic_load_firmware()
316 	err = pm_runtime_resume_and_get(vic->dev);  in vic_open_channel()
328 	context->channel = host1x_channel_get(vic->channel);  in vic_open_channel()
329 	if (!context->channel) {  in vic_open_channel()
330 		err = -ENOMEM;  in vic_open_channel()
337 	pm_runtime_put(vic->dev);  in vic_open_channel()
343 	struct vic *vic = to_vic(context->client);  in vic_close_channel()
345 	host1x_channel_put(context->channel);  in vic_close_channel()
347 	pm_runtime_put(vic->dev);  in vic_close_channel()
389 	{ .compatible = "nvidia,tegra124-vic", .data = &vic_t124_config },
390 	{ .compatible = "nvidia,tegra210-vic", .data = &vic_t210_config },
391 	{ .compatible = "nvidia,tegra186-vic", .data = &vic_t186_config },
392 	{ .compatible = "nvidia,tegra194-vic", .data = &vic_t194_config },
399 	struct device *dev = &pdev->dev;  in vic_probe()
406 	err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask);  in vic_probe()
408 		dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err);  in vic_probe()
414 		return -ENOMEM;  in vic_probe()
416 	vic->config = of_device_get_match_data(dev);  in vic_probe()
420 		return -ENOMEM;  in vic_probe()
424 		dev_err(&pdev->dev, "failed to get registers\n");  in vic_probe()
425 		return -ENXIO;  in vic_probe()
428 	vic->regs = devm_ioremap_resource(dev, regs);  in vic_probe()
429 	if (IS_ERR(vic->regs))  in vic_probe()
430 		return PTR_ERR(vic->regs);  in vic_probe()
432 	vic->clk = devm_clk_get(dev, NULL);  in vic_probe()
433 	if (IS_ERR(vic->clk)) {  in vic_probe()
434 		dev_err(&pdev->dev, "failed to get clock\n");  in vic_probe()
435 		return PTR_ERR(vic->clk);  in vic_probe()
438 	if (!dev->pm_domain) {  in vic_probe()
439 		vic->rst = devm_reset_control_get(dev, "vic");  in vic_probe()
440 		if (IS_ERR(vic->rst)) {  in vic_probe()
441 			dev_err(&pdev->dev, "failed to get reset\n");  in vic_probe()
442 			return PTR_ERR(vic->rst);  in vic_probe()
446 	vic->falcon.dev = dev;  in vic_probe()
447 	vic->falcon.regs = vic->regs;  in vic_probe()
449 	err = falcon_init(&vic->falcon);  in vic_probe()
455 	INIT_LIST_HEAD(&vic->client.base.list);  in vic_probe()
456 	vic->client.base.ops = &vic_client_ops;  in vic_probe()
457 	vic->client.base.dev = dev;  in vic_probe()
458 	vic->client.base.class = HOST1X_CLASS_VIC;  in vic_probe()
459 	vic->client.base.syncpts = syncpts;  in vic_probe()
460 	vic->client.base.num_syncpts = 1;  in vic_probe()
461 	vic->dev = dev;  in vic_probe()
463 	INIT_LIST_HEAD(&vic->client.list);  in vic_probe()
464 	vic->client.version = vic->config->version;  in vic_probe()
465 	vic->client.ops = &vic_ops;  in vic_probe()
467 	err = host1x_client_register(&vic->client.base);  in vic_probe()
473 	pm_runtime_enable(&pdev->dev);  in vic_probe()
474 	if (!pm_runtime_enabled(&pdev->dev)) {  in vic_probe()
475 		err = vic_runtime_resume(&pdev->dev);  in vic_probe()
483 	host1x_client_unregister(&vic->client.base);  in vic_probe()
485 	falcon_exit(&vic->falcon);  in vic_probe()
495 	err = host1x_client_unregister(&vic->client.base);  in vic_remove()
497 		dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",  in vic_remove()
502 	if (pm_runtime_enabled(&pdev->dev))  in vic_remove()
503 		pm_runtime_disable(&pdev->dev);  in vic_remove()
505 		vic_runtime_suspend(&pdev->dev);  in vic_remove()
507 	falcon_exit(&vic->falcon);  in vic_remove()
518 		.name = "tegra-vic",