1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/dma-mapping.h>
19 #include <soc/tegra/pmc.h>
54 	writel(value, vic->regs + offset);  in vic_writel()
60 	struct iommu_fwspec *spec = dev_iommu_fwspec_get(vic->dev);  in vic_boot()
67 	if (vic->config->supports_sid && spec) {  in vic_boot()
74 		if (spec->num_ids > 0) {  in vic_boot()
75 			value = spec->ids[0] & 0xffff;  in vic_boot()
101 	err = falcon_boot(&vic->falcon);  in vic_boot()
105 	hdr = vic->falcon.firmware.virt;  in vic_boot()
110 		hdr = vic->falcon.firmware.virt +  in vic_boot()
114 		falcon_execute_method(&vic->falcon, VIC_SET_FCE_UCODE_SIZE,  in vic_boot()
117 			&vic->falcon, VIC_SET_FCE_UCODE_OFFSET,  in vic_boot()
118 			(vic->falcon.firmware.iova + fce_bin_data_offset) >> 8);  in vic_boot()
121 	err = falcon_wait_idle(&vic->falcon);  in vic_boot()
123 		dev_err(vic->dev,  in vic_boot()
134 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_init()
135 	struct tegra_drm *tegra = dev->dev_private;  in vic_init()
140 	if (err < 0 && err != -ENODEV) {  in vic_init()
141 		dev_err(vic->dev, "failed to attach to domain: %d\n", err);  in vic_init()
145 	vic->channel = host1x_channel_request(client);  in vic_init()
146 	if (!vic->channel) {  in vic_init()
147 		err = -ENOMEM;  in vic_init()
151 	client->syncpts[0] = host1x_syncpt_request(client, 0);  in vic_init()
152 	if (!client->syncpts[0]) {  in vic_init()
153 		err = -ENOMEM;  in vic_init()
157 	pm_runtime_enable(client->dev);  in vic_init()
158 	pm_runtime_use_autosuspend(client->dev);  in vic_init()
159 	pm_runtime_set_autosuspend_delay(client->dev, 500);  in vic_init()
169 	client->dev->dma_parms = client->host->dma_parms;  in vic_init()
174 	pm_runtime_dont_use_autosuspend(client->dev);  in vic_init()
175 	pm_runtime_force_suspend(client->dev);  in vic_init()
177 	host1x_syncpt_put(client->syncpts[0]);  in vic_init()
179 	host1x_channel_put(vic->channel);  in vic_init()
189 	struct drm_device *dev = dev_get_drvdata(client->host);  in vic_exit()
190 	struct tegra_drm *tegra = dev->dev_private;  in vic_exit()
195 	client->dev->dma_parms = NULL;  in vic_exit()
201 	pm_runtime_dont_use_autosuspend(client->dev);  in vic_exit()
202 	pm_runtime_force_suspend(client->dev);  in vic_exit()
204 	host1x_syncpt_put(client->syncpts[0]);  in vic_exit()
205 	host1x_channel_put(vic->channel);  in vic_exit()
208 	vic->channel = NULL;  in vic_exit()
210 	if (client->group) {  in vic_exit()
211 		dma_unmap_single(vic->dev, vic->falcon.firmware.phys,  in vic_exit()
212 				 vic->falcon.firmware.size, DMA_TO_DEVICE);  in vic_exit()
213 		tegra_drm_free(tegra, vic->falcon.firmware.size,  in vic_exit()
214 			       vic->falcon.firmware.virt,  in vic_exit()
215 			       vic->falcon.firmware.iova);  in vic_exit()
217 		dma_free_coherent(vic->dev, vic->falcon.firmware.size,  in vic_exit()
218 				  vic->falcon.firmware.virt,  in vic_exit()
219 				  vic->falcon.firmware.iova);  in vic_exit()
232 	struct host1x_client *client = &vic->client.base;  in vic_load_firmware()
233 	struct tegra_drm *tegra = vic->client.drm;  in vic_load_firmware()
243 	if (vic->falcon.firmware.virt) {  in vic_load_firmware()
248 	err = falcon_read_firmware(&vic->falcon, vic->config->firmware);  in vic_load_firmware()
252 	size = vic->falcon.firmware.size;  in vic_load_firmware()
254 	if (!client->group) {  in vic_load_firmware()
255 		virt = dma_alloc_coherent(vic->dev, size, &iova, GFP_KERNEL);  in vic_load_firmware()
257 			err = -ENOMEM;  in vic_load_firmware()
268 	vic->falcon.firmware.virt = virt;  in vic_load_firmware()
269 	vic->falcon.firmware.iova = iova;  in vic_load_firmware()
271 	err = falcon_load_firmware(&vic->falcon);  in vic_load_firmware()
280 	if (client->group) {  in vic_load_firmware()
283 		phys = dma_map_single(vic->dev, virt, size, DMA_TO_DEVICE);  in vic_load_firmware()
285 		err = dma_mapping_error(vic->dev, phys);  in vic_load_firmware()
289 		vic->falcon.firmware.phys = phys;  in vic_load_firmware()
298 	if (!vic->config->supports_sid) {  in vic_load_firmware()
299 		vic->can_use_context = false;  in vic_load_firmware()
305 		vic->can_use_context = false;  in vic_load_firmware()
306 		dev_warn_once(vic->dev, "context isolation disabled due to old firmware\n");  in vic_load_firmware()
308 		vic->can_use_context = true;  in vic_load_firmware()
316 	if (!client->group)  in vic_load_firmware()
317 		dma_free_coherent(vic->dev, size, virt, iova);  in vic_load_firmware()
331 	err = clk_prepare_enable(vic->clk);  in vic_runtime_resume()
337 	err = reset_control_deassert(vic->rst);  in vic_runtime_resume()
354 	reset_control_assert(vic->rst);  in vic_runtime_resume()
356 	clk_disable_unprepare(vic->clk);  in vic_runtime_resume()
365 	host1x_channel_stop(vic->channel);  in vic_runtime_suspend()
367 	err = reset_control_assert(vic->rst);  in vic_runtime_suspend()
373 	clk_disable_unprepare(vic->clk);  in vic_runtime_suspend()
383 	context->channel = host1x_channel_get(vic->channel);  in vic_open_channel()
384 	if (!context->channel)  in vic_open_channel()
385 		return -ENOMEM;  in vic_open_channel()
392 	host1x_channel_put(context->channel);  in vic_close_channel()
405 	*supported = vic->can_use_context;  in vic_can_use_memory_ctx()
434 #define NVIDIA_TEGRA_186_VIC_FIRMWARE "nvidia/tegra186/vic04_ucode.bin"
459 	{ .compatible = "nvidia,tegra124-vic", .data = &vic_t124_config },
460 	{ .compatible = "nvidia,tegra210-vic", .data = &vic_t210_config },
461 	{ .compatible = "nvidia,tegra186-vic", .data = &vic_t186_config },
462 	{ .compatible = "nvidia,tegra194-vic", .data = &vic_t194_config },
463 	{ .compatible = "nvidia,tegra234-vic", .data = &vic_t234_config },
470 	struct device *dev = &pdev->dev;  in vic_probe()
476 	err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask);  in vic_probe()
478 		dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err);  in vic_probe()
484 		return -ENOMEM;  in vic_probe()
486 	vic->config = of_device_get_match_data(dev);  in vic_probe()
490 		return -ENOMEM;  in vic_probe()
492 	vic->regs = devm_platform_ioremap_resource(pdev, 0);  in vic_probe()
493 	if (IS_ERR(vic->regs))  in vic_probe()
494 		return PTR_ERR(vic->regs);  in vic_probe()
496 	vic->clk = devm_clk_get(dev, NULL);  in vic_probe()
497 	if (IS_ERR(vic->clk)) {  in vic_probe()
498 		dev_err(&pdev->dev, "failed to get clock\n");  in vic_probe()
499 		return PTR_ERR(vic->clk);  in vic_probe()
502 	err = clk_set_rate(vic->clk, ULONG_MAX);  in vic_probe()
504 		dev_err(&pdev->dev, "failed to set clock rate\n");  in vic_probe()
508 	if (!dev->pm_domain) {  in vic_probe()
509 		vic->rst = devm_reset_control_get(dev, "vic");  in vic_probe()
510 		if (IS_ERR(vic->rst)) {  in vic_probe()
511 			dev_err(&pdev->dev, "failed to get reset\n");  in vic_probe()
512 			return PTR_ERR(vic->rst);  in vic_probe()
516 	vic->falcon.dev = dev;  in vic_probe()
517 	vic->falcon.regs = vic->regs;  in vic_probe()
519 	err = falcon_init(&vic->falcon);  in vic_probe()
525 	INIT_LIST_HEAD(&vic->client.base.list);  in vic_probe()
526 	vic->client.base.ops = &vic_client_ops;  in vic_probe()
527 	vic->client.base.dev = dev;  in vic_probe()
528 	vic->client.base.class = HOST1X_CLASS_VIC;  in vic_probe()
529 	vic->client.base.syncpts = syncpts;  in vic_probe()
530 	vic->client.base.num_syncpts = 1;  in vic_probe()
531 	vic->dev = dev;  in vic_probe()
533 	INIT_LIST_HEAD(&vic->client.list);  in vic_probe()
534 	vic->client.version = vic->config->version;  in vic_probe()
535 	vic->client.ops = &vic_ops;  in vic_probe()
537 	err = host1x_client_register(&vic->client.base);  in vic_probe()
546 	falcon_exit(&vic->falcon);  in vic_probe()
556 	err = host1x_client_unregister(&vic->client.base);  in vic_remove()
558 		dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",  in vic_remove()
563 	falcon_exit(&vic->falcon);  in vic_remove()
575 		.name = "tegra-vic",