24 static int send_sfs_cmd(struct sfs_device *sfs_dev, int msg)  in send_sfs_cmd()  argument
28 	sfs_dev->command_buf->hdr.status = 0;  in send_sfs_cmd()
29 	sfs_dev->command_buf->hdr.sub_cmd_id = msg;  in send_sfs_cmd()
31 	ret = psp_extended_mailbox_cmd(sfs_dev->psp,  in send_sfs_cmd()
33 				       (struct psp_ext_request *)sfs_dev->command_buf);  in send_sfs_cmd()
35 		dev_dbg(sfs_dev->dev,  in send_sfs_cmd()
37 			 msg, sfs_dev->command_buf->hdr.status,  in send_sfs_cmd()
38 			 *(u32 *)sfs_dev->command_buf->buf);  in send_sfs_cmd()
44 static int send_sfs_get_fw_versions(struct sfs_device *sfs_dev)  in send_sfs_get_fw_versions()  argument
50 	memset(sfs_dev->command_buf->sfs_buffer, 0xc7, PAGE_SIZE);  in send_sfs_get_fw_versions()
51 	sfs_dev->command_buf->hdr.payload_size = 2 * PAGE_SIZE;  in send_sfs_get_fw_versions()
53 	return send_sfs_cmd(sfs_dev, PSP_SFS_GET_FW_VERSIONS);  in send_sfs_get_fw_versions()
56 static int send_sfs_update_package(struct sfs_device *sfs_dev, const char *payload_name)  in send_sfs_update_package()  argument
69 	ret = firmware_request_nowarn(&firmware, payload_path, sfs_dev->dev);  in send_sfs_update_package()
71 		dev_warn_ratelimited(sfs_dev->dev, "firmware request failed for %s (%d)\n",  in send_sfs_update_package()
87 		dev_warn_ratelimited(sfs_dev->dev,  in send_sfs_update_package()
97 	memcpy(sfs_dev->command_buf->sfs_buffer, firmware->data, firmware->size);  in send_sfs_update_package()
98 	sfs_dev->command_buf->hdr.payload_size = package_size;  in send_sfs_update_package()
102 	return send_sfs_cmd(sfs_dev, PSP_SFS_UPDATE);  in send_sfs_update_package()
111 	struct sfs_device *sfs_dev;  in sfs_ioctl()  local
117 	sfs_dev = psp_master->sfs_data;  in sfs_ioctl()
123 		dev_dbg(sfs_dev->dev, "in SFSIOCFWVERS\n");  in sfs_ioctl()
127 		ret = send_sfs_get_fw_versions(sfs_dev);  in sfs_ioctl()
135 		if (copy_to_user(&sfs_get_fw_versions->blob, sfs_dev->command_buf->sfs_buffer,  in sfs_ioctl()
139 				 &sfs_dev->command_buf->hdr.status,  in sfs_ioctl()
143 				 &sfs_dev->command_buf->buf,  in sfs_ioctl()
148 		dev_dbg(sfs_dev->dev, "in SFSIOCUPDATEPKG\n");  in sfs_ioctl()
156 		ret = send_sfs_update_package(sfs_dev, payload_name);  in sfs_ioctl()
165 				 &sfs_dev->command_buf->hdr.status,  in sfs_ioctl()
169 				 &sfs_dev->command_buf->buf,  in sfs_ioctl()
194 	struct sfs_device *sfs_dev = psp->sfs_data;  in sfs_dev_destroy()  local
196 	if (!sfs_dev)  in sfs_dev_destroy()
202 	set_memory_wb((unsigned long)sfs_dev->command_buf, SFS_NUM_PAGES_CMDBUF);  in sfs_dev_destroy()
204 	snp_free_hv_fixed_pages(sfs_dev->page);  in sfs_dev_destroy()
206 	if (sfs_dev->misc)  in sfs_dev_destroy()
254 	struct sfs_device *sfs_dev;  in sfs_dev_init()  local
258 	sfs_dev = devm_kzalloc(dev, sizeof(*sfs_dev), GFP_KERNEL);  in sfs_dev_init()
259 	if (!sfs_dev)  in sfs_dev_init()
272 	sfs_dev->page = page;  in sfs_dev_init()
273 	sfs_dev->command_buf = page_address(page);  in sfs_dev_init()
275 	dev_dbg(dev, "Command buffer 0x%px to be marked as HV_Fixed\n", sfs_dev->command_buf);  in sfs_dev_init()
280 	ret = set_memory_uc((unsigned long)sfs_dev->command_buf, SFS_NUM_PAGES_CMDBUF);  in sfs_dev_init()
286 	dev_dbg(dev, "Command buffer 0x%px marked uncacheable\n", sfs_dev->command_buf);  in sfs_dev_init()
288 	psp->sfs_data = sfs_dev;  in sfs_dev_init()
289 	sfs_dev->dev = dev;  in sfs_dev_init()
290 	sfs_dev->psp = psp;  in sfs_dev_init()
292 	ret = sfs_misc_init(sfs_dev);  in sfs_dev_init()
296 	dev_notice(sfs_dev->dev, "SFS support is available\n");  in sfs_dev_init()
301 	set_memory_wb((unsigned long)sfs_dev->command_buf, SFS_NUM_PAGES_CMDBUF);  in sfs_dev_init()
308 	devm_kfree(dev, sfs_dev);  in sfs_dev_init()