1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/firmware.h>
16 #include <linux/firmware/qcom/qcom_scm.h>
21 #include "firmware.h"
30 	u32 fw_size = core->fw.mapped_mem_size;  in venus_reset_cpu()
34 		wrapper_base = core->wrapper_tz_base;  in venus_reset_cpu()
36 		wrapper_base = core->wrapper_base;  in venus_reset_cpu()
61 	if (core->use_tz) {  in venus_set_hw_state()
63 		if (resume && ret == -EINVAL)  in venus_set_hw_state()
73 			       core->wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);  in venus_set_hw_state()
76 			       core->wrapper_base + WRAPPER_A9SS_SW_RESET);  in venus_set_hw_state()
85 	const struct firmware *mdt;  in venus_load_fw()
96 	dev = core->dev;  in venus_load_fw()
97 	node = of_parse_phandle(dev->of_node, "memory-region", 0);  in venus_load_fw()
99 		dev_err(dev, "no memory-region specified\n");  in venus_load_fw()
100 		return -EINVAL;  in venus_load_fw()
106 		dev_err(dev, "failed to lookup reserved memory-region\n");  in venus_load_fw()
107 		return -EINVAL;  in venus_load_fw()
120 	*mem_phys = rmem->base;  in venus_load_fw()
121 	*mem_size = rmem->size;  in venus_load_fw()
124 		ret = -EINVAL;  in venus_load_fw()
131 		ret = -ENOMEM;  in venus_load_fw()
135 	if (core->use_tz)  in venus_load_fw()
155 	dev = core->fw.dev;  in venus_boot_no_tz()
157 		return -EPROBE_DEFER;  in venus_boot_no_tz()
159 	iommu = core->fw.iommu_domain;  in venus_boot_no_tz()
160 	core->fw.mapped_mem_size = mem_size;  in venus_boot_no_tz()
165 		dev_err(dev, "could not map video firmware region\n");  in venus_boot_no_tz()
176 	const size_t mapped = core->fw.mapped_mem_size;  in venus_shutdown_no_tz()
180 	struct device *dev = core->fw.dev;  in venus_shutdown_no_tz()
181 	void __iomem *wrapper_base = core->wrapper_base;  in venus_shutdown_no_tz()
182 	void __iomem *wrapper_tz_base = core->wrapper_tz_base;  in venus_shutdown_no_tz()
196 	iommu = core->fw.iommu_domain;  in venus_shutdown_no_tz()
198 	if (core->fw.mapped_mem_size && iommu) {  in venus_shutdown_no_tz()
202 			dev_err(dev, "failed to unmap firmware\n");  in venus_shutdown_no_tz()
204 			core->fw.mapped_mem_size = 0;  in venus_shutdown_no_tz()
212 	struct device *dev = core->dev;  in venus_boot()
213 	const struct venus_resources *res = core->res;  in venus_boot()
220 	    (core->use_tz && !qcom_scm_is_available()))  in venus_boot()
221 		return -EPROBE_DEFER;  in venus_boot()
223 	ret = of_property_read_string_index(dev->of_node, "firmware-name", 0,  in venus_boot()
226 		fwpath = core->res->fwname;  in venus_boot()
230 		dev_err(dev, "fail to load video firmware\n");  in venus_boot()
231 		return -EINVAL;  in venus_boot()
234 	core->fw.mem_size = mem_size;  in venus_boot()
235 	core->fw.mem_phys = mem_phys;  in venus_boot()
237 	if (core->use_tz)  in venus_boot()
245 	if (core->use_tz && res->cp_size) {  in venus_boot()
249 		 * cp_size = venus_ns/virtual-addr-pool[0] - yes, address and not size!  in venus_boot()
250 		 *   This works, as the non-secure context bank is placed  in venus_boot()
253 		 * cp_nonpixel_start = venus_sec_non_pixel/virtual-addr-pool[0]  in venus_boot()
254 		 * cp_nonpixel_size = venus_sec_non_pixel/virtual-addr-pool[1]  in venus_boot()
256 		ret = qcom_scm_mem_protect_video_var(res->cp_start,  in venus_boot()
257 						     res->cp_size,  in venus_boot()
258 						     res->cp_nonpixel_start,  in venus_boot()
259 						     res->cp_nonpixel_size);  in venus_boot()
275 	if (core->use_tz)  in venus_shutdown()
291 	np = of_get_child_by_name(core->dev->of_node, "video-firmware");  in venus_firmware_init()
293 		core->use_tz = true;  in venus_firmware_init()
298 	info.fwnode = &np->fwnode;  in venus_firmware_init()
299 	info.parent = core->dev;  in venus_firmware_init()
300 	info.name = np->name;  in venus_firmware_init()
309 	pdev->dev.of_node = np;  in venus_firmware_init()
311 	ret = of_dma_configure(&pdev->dev, np, true);  in venus_firmware_init()
313 		dev_err(core->dev, "dma configure fail\n");  in venus_firmware_init()
317 	core->fw.dev = &pdev->dev;  in venus_firmware_init()
319 	iommu_dom = iommu_paging_domain_alloc(core->fw.dev);  in venus_firmware_init()
321 		dev_err(core->fw.dev, "Failed to allocate iommu domain\n");  in venus_firmware_init()
326 	ret = iommu_attach_device(iommu_dom, core->fw.dev);  in venus_firmware_init()
328 		dev_err(core->fw.dev, "could not attach device\n");  in venus_firmware_init()
332 	core->fw.iommu_domain = iommu_dom;  in venus_firmware_init()
350 	if (!core->fw.dev)  in venus_firmware_deinit()
353 	iommu = core->fw.iommu_domain;  in venus_firmware_deinit()
355 	iommu_detach_device(iommu, core->fw.dev);  in venus_firmware_deinit()
357 	if (core->fw.iommu_domain) {  in venus_firmware_deinit()
359 		core->fw.iommu_domain = NULL;  in venus_firmware_deinit()
362 	platform_device_unregister(to_platform_device(core->fw.dev));  in venus_firmware_deinit()