1 // SPDX-License-Identifier: GPL-2.0
116 	return container_of(file->private_data, struct pfru_device, miscdev);  in to_pfru_dev()
122 	acpi_handle handle = ACPI_HANDLE(pfru_dev->parent_dev);  in query_capability()
124 	int ret = -EINVAL;  in query_capability()
127 					  pfru_dev->rev_id,  in query_capability()
133 	if (out_obj->package.count < CAP_NR_IDX ||  in query_capability()
134 	    out_obj->package.elements[CAP_STATUS_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
135 	    out_obj->package.elements[CAP_UPDATE_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
136 	    out_obj->package.elements[CAP_CODE_TYPE_IDX].type != ACPI_TYPE_BUFFER ||  in query_capability()
137 	    out_obj->package.elements[CAP_FW_VER_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
138 	    out_obj->package.elements[CAP_CODE_RT_VER_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
139 	    out_obj->package.elements[CAP_DRV_TYPE_IDX].type != ACPI_TYPE_BUFFER ||  in query_capability()
140 	    out_obj->package.elements[CAP_DRV_RT_VER_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
141 	    out_obj->package.elements[CAP_DRV_SVN_IDX].type != ACPI_TYPE_INTEGER ||  in query_capability()
142 	    out_obj->package.elements[CAP_PLAT_ID_IDX].type != ACPI_TYPE_BUFFER ||  in query_capability()
143 	    out_obj->package.elements[CAP_OEM_ID_IDX].type != ACPI_TYPE_BUFFER ||  in query_capability()
144 	    out_obj->package.elements[CAP_OEM_INFO_IDX].type != ACPI_TYPE_BUFFER)  in query_capability()
147 	cap_hdr->status = out_obj->package.elements[CAP_STATUS_IDX].integer.value;  in query_capability()
148 	if (cap_hdr->status != DSM_SUCCEED) {  in query_capability()
149 		ret = -EBUSY;  in query_capability()
150 		dev_dbg(pfru_dev->parent_dev, "Error Status:%d\n", cap_hdr->status);  in query_capability()
154 	cap_hdr->update_cap = out_obj->package.elements[CAP_UPDATE_IDX].integer.value;  in query_capability()
155 	memcpy(&cap_hdr->code_type,  in query_capability()
156 	       out_obj->package.elements[CAP_CODE_TYPE_IDX].buffer.pointer,  in query_capability()
157 	       out_obj->package.elements[CAP_CODE_TYPE_IDX].buffer.length);  in query_capability()
158 	cap_hdr->fw_version =  in query_capability()
159 		out_obj->package.elements[CAP_FW_VER_IDX].integer.value;  in query_capability()
160 	cap_hdr->code_rt_version =  in query_capability()
161 		out_obj->package.elements[CAP_CODE_RT_VER_IDX].integer.value;  in query_capability()
162 	memcpy(&cap_hdr->drv_type,  in query_capability()
163 	       out_obj->package.elements[CAP_DRV_TYPE_IDX].buffer.pointer,  in query_capability()
164 	       out_obj->package.elements[CAP_DRV_TYPE_IDX].buffer.length);  in query_capability()
165 	cap_hdr->drv_rt_version =  in query_capability()
166 		out_obj->package.elements[CAP_DRV_RT_VER_IDX].integer.value;  in query_capability()
167 	cap_hdr->drv_svn =  in query_capability()
168 		out_obj->package.elements[CAP_DRV_SVN_IDX].integer.value;  in query_capability()
169 	memcpy(&cap_hdr->platform_id,  in query_capability()
170 	       out_obj->package.elements[CAP_PLAT_ID_IDX].buffer.pointer,  in query_capability()
171 	       out_obj->package.elements[CAP_PLAT_ID_IDX].buffer.length);  in query_capability()
172 	memcpy(&cap_hdr->oem_id,  in query_capability()
173 	       out_obj->package.elements[CAP_OEM_ID_IDX].buffer.pointer,  in query_capability()
174 	       out_obj->package.elements[CAP_OEM_ID_IDX].buffer.length);  in query_capability()
175 	cap_hdr->oem_info_len =  in query_capability()
176 		out_obj->package.elements[CAP_OEM_INFO_IDX].buffer.length;  in query_capability()
189 	acpi_handle handle = ACPI_HANDLE(pfru_dev->parent_dev);  in query_buffer()
191 	int ret = -EINVAL;  in query_buffer()
194 					  pfru_dev->rev_id, PFRU_FUNC_QUERY_BUF,  in query_buffer()
199 	if (out_obj->package.count < BUF_NR_IDX ||  in query_buffer()
200 	    out_obj->package.elements[BUF_STATUS_IDX].type != ACPI_TYPE_INTEGER ||  in query_buffer()
201 	    out_obj->package.elements[BUF_EXT_STATUS_IDX].type != ACPI_TYPE_INTEGER ||  in query_buffer()
202 	    out_obj->package.elements[BUF_ADDR_LOW_IDX].type != ACPI_TYPE_INTEGER ||  in query_buffer()
203 	    out_obj->package.elements[BUF_ADDR_HI_IDX].type != ACPI_TYPE_INTEGER ||  in query_buffer()
204 	    out_obj->package.elements[BUF_SIZE_IDX].type != ACPI_TYPE_INTEGER)  in query_buffer()
207 	info->status = out_obj->package.elements[BUF_STATUS_IDX].integer.value;  in query_buffer()
208 	info->ext_status =  in query_buffer()
209 		out_obj->package.elements[BUF_EXT_STATUS_IDX].integer.value;  in query_buffer()
210 	if (info->status != DSM_SUCCEED) {  in query_buffer()
211 		ret = -EBUSY;  in query_buffer()
212 		dev_dbg(pfru_dev->parent_dev, "Error Status:%d\n", info->status);  in query_buffer()
213 		dev_dbg(pfru_dev->parent_dev, "Error Extended Status:%d\n", info->ext_status);  in query_buffer()
218 	info->addr_lo =  in query_buffer()
219 		out_obj->package.elements[BUF_ADDR_LOW_IDX].integer.value;  in query_buffer()
220 	info->addr_hi =  in query_buffer()
221 		out_obj->package.elements[BUF_ADDR_HI_IDX].integer.value;  in query_buffer()
222 	info->buf_size = out_obj->package.elements[BUF_SIZE_IDX].integer.value;  in query_buffer()
235 	const efi_guid_t *image_type_id = &img_hdr->image_type_id;  in get_image_type()
244 	return -EINVAL;  in get_image_type()
258 	switch (img_hdr->ver) {  in adjust_efi_size()
260 		return size - 2 * sizeof(u64);  in adjust_efi_size()
263 		return size - sizeof(u64);  in adjust_efi_size()
267 		return -EINVAL;  in adjust_efi_size()
287 	size = cap_hdr->headersize;  in applicable_image()
294 		(m_hdr->emb_drv_cnt + m_hdr->payload_cnt) * sizeof(u64);  in applicable_image()
306 	size += sizeof(u64) + auth->auth_info.hdr.len;  in applicable_image()
311 		return payload_hdr->rt_ver >= cap->code_rt_version;  in applicable_image()
313 	return payload_hdr->rt_ver >= cap->drv_rt_version;  in applicable_image()
319 	dev_dbg(pfru_dev->parent_dev, "Update result:\n");  in print_update_debug_info()
320 	dev_dbg(pfru_dev->parent_dev, "Authentication Time Low:%lld\n",  in print_update_debug_info()
321 		result->low_auth_time);  in print_update_debug_info()
322 	dev_dbg(pfru_dev->parent_dev, "Authentication Time High:%lld\n",  in print_update_debug_info()
323 		result->high_auth_time);  in print_update_debug_info()
324 	dev_dbg(pfru_dev->parent_dev, "Execution Time Low:%lld\n",  in print_update_debug_info()
325 		result->low_exec_time);  in print_update_debug_info()
326 	dev_dbg(pfru_dev->parent_dev, "Execution Time High:%lld\n",  in print_update_debug_info()
327 		result->high_exec_time);  in print_update_debug_info()
335 	int ret = -EINVAL;  in start_update()
343 	in_buf.integer.value = action;  in start_update()
345 	handle = ACPI_HANDLE(pfru_dev->parent_dev);  in start_update()
347 					  pfru_dev->rev_id, PFRU_FUNC_START,  in start_update()
352 	if (out_obj->package.count < UPDATE_NR_IDX ||  in start_update()
353 	    out_obj->package.elements[UPDATE_STATUS_IDX].type != ACPI_TYPE_INTEGER ||  in start_update()
354 	    out_obj->package.elements[UPDATE_EXT_STATUS_IDX].type != ACPI_TYPE_INTEGER ||  in start_update()
355 	    out_obj->package.elements[UPDATE_AUTH_TIME_LOW_IDX].type != ACPI_TYPE_INTEGER ||  in start_update()
356 	    out_obj->package.elements[UPDATE_AUTH_TIME_HI_IDX].type != ACPI_TYPE_INTEGER ||  in start_update()
357 	    out_obj->package.elements[UPDATE_EXEC_TIME_LOW_IDX].type != ACPI_TYPE_INTEGER ||  in start_update()
358 	    out_obj->package.elements[UPDATE_EXEC_TIME_HI_IDX].type != ACPI_TYPE_INTEGER)  in start_update()
362 		out_obj->package.elements[UPDATE_STATUS_IDX].integer.value;  in start_update()
364 		out_obj->package.elements[UPDATE_EXT_STATUS_IDX].integer.value;  in start_update()
367 		ret = -EBUSY;  in start_update()
368 		dev_dbg(pfru_dev->parent_dev, "Error Status:%d\n", update_result.status);  in start_update()
369 		dev_dbg(pfru_dev->parent_dev, "Error Extended Status:%d\n",  in start_update()
376 		out_obj->package.elements[UPDATE_AUTH_TIME_LOW_IDX].integer.value;  in start_update()
378 		out_obj->package.elements[UPDATE_AUTH_TIME_HI_IDX].integer.value;  in start_update()
380 		out_obj->package.elements[UPDATE_EXEC_TIME_LOW_IDX].integer.value;  in start_update()
382 		out_obj->package.elements[UPDATE_EXEC_TIME_HI_IDX].integer.value;  in start_update()
408 			return -EFAULT;  in pfru_ioctl()
414 			return -EFAULT;  in pfru_ioctl()
417 			return -EINVAL;  in pfru_ioctl()
419 		pfru_dev->rev_id = rev;  in pfru_ioctl()
433 		return -ENOTTY;  in pfru_ioctl()
454 		return -EINVAL;  in pfru_write()
464 		return -ENOMEM;  in pfru_write()
467 		ret = -EINVAL;  in pfru_write()
477 		ret = -EINVAL;  in pfru_write()
496 	misc_deregister(&pfru_dev->miscdev);  in acpi_pfru_remove()
503 	ida_free(&pfru_ida, pfru_dev->index);  in pfru_put_idx()
508 	acpi_handle handle = ACPI_HANDLE(&pdev->dev);  in acpi_pfru_probe()
513 		dev_dbg(&pdev->dev, "Missing _DSM\n");  in acpi_pfru_probe()
514 		return -ENODEV;  in acpi_pfru_probe()
517 	pfru_dev = devm_kzalloc(&pdev->dev, sizeof(*pfru_dev), GFP_KERNEL);  in acpi_pfru_probe()
519 		return -ENOMEM;  in acpi_pfru_probe()
525 	pfru_dev->index = ret;  in acpi_pfru_probe()
526 	ret = devm_add_action_or_reset(&pdev->dev, pfru_put_idx, pfru_dev);  in acpi_pfru_probe()
530 	pfru_dev->rev_id = PFRU_DEFAULT_REV_ID;  in acpi_pfru_probe()
531 	pfru_dev->parent_dev = &pdev->dev;  in acpi_pfru_probe()
533 	pfru_dev->miscdev.minor = MISC_DYNAMIC_MINOR;  in acpi_pfru_probe()
534 	pfru_dev->miscdev.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,  in acpi_pfru_probe()
535 						"pfru%d", pfru_dev->index);  in acpi_pfru_probe()
536 	if (!pfru_dev->miscdev.name)  in acpi_pfru_probe()
537 		return -ENOMEM;  in acpi_pfru_probe()
539 	pfru_dev->miscdev.nodename = devm_kasprintf(&pdev->dev, GFP_KERNEL,  in acpi_pfru_probe()
540 						    "acpi_pfr_update%d", pfru_dev->index);  in acpi_pfru_probe()
541 	if (!pfru_dev->miscdev.nodename)  in acpi_pfru_probe()
542 		return -ENOMEM;  in acpi_pfru_probe()
544 	pfru_dev->miscdev.fops = &acpi_pfru_fops;  in acpi_pfru_probe()
545 	pfru_dev->miscdev.parent = &pdev->dev;  in acpi_pfru_probe()
547 	ret = misc_register(&pfru_dev->miscdev);  in acpi_pfru_probe()