1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/firmware.h>
20 #include "firmware.h"
29 	u32 fw_size = core->fw.mapped_mem_size;  in venus_reset_cpu()
30 	void __iomem *base = core->base;  in venus_reset_cpu()
49 	if (core->use_tz) {  in venus_set_hw_state()
51 		if (resume && ret == -EINVAL)  in venus_set_hw_state()
59 		writel(1, core->base + WRAPPER_A9SS_SW_RESET);  in venus_set_hw_state()
67 	const struct firmware *mdt;  in venus_load_fw()
78 	dev = core->dev;  in venus_load_fw()
79 	node = of_parse_phandle(dev->of_node, "memory-region", 0);  in venus_load_fw()
81 		dev_err(dev, "no memory-region specified\n");  in venus_load_fw()
82 		return -EINVAL;  in venus_load_fw()
103 		ret = -EINVAL;  in venus_load_fw()
110 		ret = -ENOMEM;  in venus_load_fw()
114 	if (core->use_tz)  in venus_load_fw()
136 	dev = core->fw.dev;  in venus_boot_no_tz()
138 		return -EPROBE_DEFER;  in venus_boot_no_tz()
140 	iommu = core->fw.iommu_domain;  in venus_boot_no_tz()
141 	core->fw.mapped_mem_size = mem_size;  in venus_boot_no_tz()
146 		dev_err(dev, "could not map video firmware region\n");  in venus_boot_no_tz()
157 	const size_t mapped = core->fw.mapped_mem_size;  in venus_shutdown_no_tz()
161 	struct device *dev = core->fw.dev;  in venus_shutdown_no_tz()
162 	void __iomem *base = core->base;  in venus_shutdown_no_tz()
172 	iommu = core->fw.iommu_domain;  in venus_shutdown_no_tz()
176 		dev_err(dev, "failed to unmap firmware\n");  in venus_shutdown_no_tz()
183 	struct device *dev = core->dev;  in venus_boot()
184 	const struct venus_resources *res = core->res;  in venus_boot()
190 	    (core->use_tz && !qcom_scm_is_available()))  in venus_boot()
191 		return -EPROBE_DEFER;  in venus_boot()
193 	ret = venus_load_fw(core, core->res->fwname, &mem_phys, &mem_size);  in venus_boot()
195 		dev_err(dev, "fail to load video firmware\n");  in venus_boot()
196 		return -EINVAL;  in venus_boot()
199 	if (core->use_tz)  in venus_boot()
207 	if (core->use_tz && res->cp_size) {  in venus_boot()
208 		ret = qcom_scm_mem_protect_video_var(res->cp_start,  in venus_boot()
209 						     res->cp_size,  in venus_boot()
210 						     res->cp_nonpixel_start,  in venus_boot()
211 						     res->cp_nonpixel_size);  in venus_boot()
227 	if (core->use_tz)  in venus_shutdown()
243 	np = of_get_child_by_name(core->dev->of_node, "video-firmware");  in venus_firmware_init()
245 		core->use_tz = true;  in venus_firmware_init()
250 	info.fwnode = &np->fwnode;  in venus_firmware_init()
251 	info.parent = core->dev;  in venus_firmware_init()
252 	info.name = np->name;  in venus_firmware_init()
261 	pdev->dev.of_node = np;  in venus_firmware_init()
263 	ret = of_dma_configure(&pdev->dev, np, true);  in venus_firmware_init()
265 		dev_err(core->dev, "dma configure fail\n");  in venus_firmware_init()
269 	core->fw.dev = &pdev->dev;  in venus_firmware_init()
273 		dev_err(core->fw.dev, "Failed to allocate iommu domain\n");  in venus_firmware_init()
274 		ret = -ENOMEM;  in venus_firmware_init()
278 	ret = iommu_attach_device(iommu_dom, core->fw.dev);  in venus_firmware_init()
280 		dev_err(core->fw.dev, "could not attach device\n");  in venus_firmware_init()
284 	core->fw.iommu_domain = iommu_dom;  in venus_firmware_init()
302 	if (!core->fw.dev)  in venus_firmware_deinit()
305 	iommu = core->fw.iommu_domain;  in venus_firmware_deinit()
307 	iommu_detach_device(iommu, core->fw.dev);  in venus_firmware_deinit()
310 	platform_device_unregister(to_platform_device(core->fw.dev));  in venus_firmware_deinit()