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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)//// This file is provided under a dual BSD/GPLv2 license.  When using or// redistributing this file, you may do so under either license.//// Copyright(c) 2022 Intel Corporation #include <linux/firmware.h>#include <sound/sof/ext_manifest4.h>#include <sound/sof/ipc4/header.h>#include <trace/events/sof.h>#include "ipc4-priv.h"#include "sof-audio.h"#include "sof-priv.h"#include "ops.h" /* The module ID includes the id of the library it is part of at offset 12 */#define SOF_IPC4_MOD_LIB_ID_SHIFT	12 static ssize_t sof_ipc4_fw_parse_ext_man(struct snd_sof_dev *sdev,					 struct sof_ipc4_fw_library *fw_lib){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	const struct firmware *fw = fw_lib->sof_fw.fw;	struct sof_man4_fw_binary_header *fw_header;	struct sof_ext_manifest4_hdr *ext_man_hdr;	struct sof_man4_module_config *fm_config;	struct sof_ipc4_fw_module *fw_module;	struct sof_man4_module *fm_entry;	ssize_t remaining;	u32 fw_hdr_offset;	int i; 	if (!ipc4_data) {		dev_err(sdev->dev, "%s: ipc4_data is not available\n", __func__);		return -EINVAL;	} 	remaining = fw->size;	if (remaining <= sizeof(*ext_man_hdr)) {		dev_err(sdev->dev, "Firmware size is too small: %zu\n", remaining);		return -EINVAL;	} 	ext_man_hdr = (struct sof_ext_manifest4_hdr *)fw->data; 	/*	 * At the start of the firmware image we must have an extended manifest.	 * Verify that the magic number is correct.	 */	if (ext_man_hdr->id != SOF_EXT_MAN4_MAGIC_NUMBER) {		dev_err(sdev->dev,			"Unexpected extended manifest magic number: %#x\n",			ext_man_hdr->id);		return -EINVAL;	} 	fw_hdr_offset = ipc4_data->manifest_fw_hdr_offset;	if (!fw_hdr_offset)		return -EINVAL; 	if (remaining <= ext_man_hdr->len + fw_hdr_offset + sizeof(*fw_header)) {		dev_err(sdev->dev, "Invalid firmware size %zu, should be at least %zu\n",			remaining, ext_man_hdr->len + fw_hdr_offset + sizeof(*fw_header));		return -EINVAL;	} 	fw_header = (struct sof_man4_fw_binary_header *)				(fw->data + ext_man_hdr->len + fw_hdr_offset);	remaining -= (ext_man_hdr->len + fw_hdr_offset); 	if (remaining <= fw_header->len) {		dev_err(sdev->dev, "Invalid fw_header->len %u\n", fw_header->len);		return -EINVAL;	} 	dev_info(sdev->dev, "Loaded firmware library: %s, version: %u.%u.%u.%u\n",		 fw_header->name, fw_header->major_version, fw_header->minor_version,		 fw_header->hotfix_version, fw_header->build_version);	dev_dbg(sdev->dev, "Header length: %u, module count: %u\n",		fw_header->len, fw_header->num_module_entries); 	/* copy the fw_version of basefw into debugfs at first boot */	if (fw == sdev->basefw.fw) {		sdev->fw_version.major = fw_header->major_version;		sdev->fw_version.minor = fw_header->minor_version;		sdev->fw_version.micro = fw_header->hotfix_version;		sdev->fw_version.build = fw_header->build_version;	} 	fw_lib->modules = devm_kmalloc_array(sdev->dev, fw_header->num_module_entries,					     sizeof(*fw_module), GFP_KERNEL);	if (!fw_lib->modules)		return -ENOMEM; 	fw_lib->name = fw_header->name;	fw_lib->num_modules = fw_header->num_module_entries;	fw_module = fw_lib->modules; 	fm_entry = (struct sof_man4_module *)((u8 *)fw_header + fw_header->len);	remaining -= fw_header->len; 	if (remaining < fw_header->num_module_entries * sizeof(*fm_entry)) {		dev_err(sdev->dev, "Invalid num_module_entries %u\n",			fw_header->num_module_entries);		return -EINVAL;	} 	fm_config = (struct sof_man4_module_config *)				(fm_entry + fw_header->num_module_entries);	remaining -= (fw_header->num_module_entries * sizeof(*fm_entry));	for (i = 0; i < fw_header->num_module_entries; i++) {		memcpy(&fw_module->man4_module_entry, fm_entry, sizeof(*fm_entry)); 		if (fm_entry->cfg_count) {			if (remaining < (fm_entry->cfg_offset + fm_entry->cfg_count) *			    sizeof(*fm_config)) {				dev_err(sdev->dev, "Invalid module cfg_offset %u\n",					fm_entry->cfg_offset);				return -EINVAL;			} 			fw_module->fw_mod_cfg = &fm_config[fm_entry->cfg_offset]; 			dev_dbg(sdev->dev,				"module %s: UUID %pUL cfg_count: %u, bss_size: %#x\n",				fm_entry->name, &fm_entry->uuid, fm_entry->cfg_count,				fm_config[fm_entry->cfg_offset].is_bytes);		} else {			dev_dbg(sdev->dev, "module %s: UUID %pUL\n", fm_entry->name,				&fm_entry->uuid);		} 		fw_module->man4_module_entry.id = i;		ida_init(&fw_module->m_ida);		fw_module->private = NULL; 		fw_module++;		fm_entry++;	} 	return ext_man_hdr->len;} static size_t sof_ipc4_fw_parse_basefw_ext_man(struct snd_sof_dev *sdev){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	struct sof_ipc4_fw_library *fw_lib;	ssize_t payload_offset;	int ret; 	fw_lib = devm_kzalloc(sdev->dev, sizeof(*fw_lib), GFP_KERNEL);	if (!fw_lib)		return -ENOMEM; 	fw_lib->sof_fw.fw = sdev->basefw.fw; 	payload_offset = sof_ipc4_fw_parse_ext_man(sdev, fw_lib);	if (payload_offset > 0) {		fw_lib->sof_fw.payload_offset = payload_offset; 		/* basefw ID is 0 */		fw_lib->id = 0;		ret = xa_insert(&ipc4_data->fw_lib_xa, 0, fw_lib, GFP_KERNEL);		if (ret)			return ret;	} 	return payload_offset;} static int sof_ipc4_load_library(struct snd_sof_dev *sdev, unsigned long lib_id,				 const char *lib_filename, bool optional){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	struct sof_ipc4_fw_library *fw_lib;	ssize_t payload_offset;	int ret, i; 	if (!ipc4_data->load_library) {		dev_err(sdev->dev, "Library loading is not supported on this platform\n");		return -EOPNOTSUPP;	} 	fw_lib = devm_kzalloc(sdev->dev, sizeof(*fw_lib), GFP_KERNEL);	if (!fw_lib)		return -ENOMEM; 	if (optional) {		ret = firmware_request_nowarn(&fw_lib->sof_fw.fw, lib_filename,					      sdev->dev);		if (ret < 0) {			/* optional library, override the error */			ret = 0;			goto free_fw_lib;		}	} else {		ret = request_firmware(&fw_lib->sof_fw.fw, lib_filename,				       sdev->dev);		if (ret < 0) {			dev_err(sdev->dev, "Library file '%s' is missing\n",				lib_filename);			goto free_fw_lib;		}	} 	dev_dbg(sdev->dev, "Library file '%s' loaded\n", lib_filename); 	payload_offset = sof_ipc4_fw_parse_ext_man(sdev, fw_lib);	if (payload_offset <= 0) {		if (!payload_offset)			ret = -EINVAL;		else			ret = payload_offset; 		goto release;	} 	fw_lib->sof_fw.payload_offset = payload_offset;	fw_lib->id = lib_id; 	/* Fix up the module ID numbers within the library */	for (i = 0; i < fw_lib->num_modules; i++)		fw_lib->modules[i].man4_module_entry.id |= (lib_id << SOF_IPC4_MOD_LIB_ID_SHIFT); 	ret = ipc4_data->load_library(sdev, fw_lib, false);	if (ret)		goto release; 	ret = xa_insert(&ipc4_data->fw_lib_xa, lib_id, fw_lib, GFP_KERNEL);	if (unlikely(ret))		goto release; 	return 0; release:	release_firmware(fw_lib->sof_fw.fw);	/* Allocated within sof_ipc4_fw_parse_ext_man() */	devm_kfree(sdev->dev, fw_lib->modules);free_fw_lib:	devm_kfree(sdev->dev, fw_lib); 	return ret;} /** * sof_ipc4_complete_split_release - loads the library parts of a split firmware * @sdev: SOF device * * With IPC4 the firmware can be a single binary or a split release. * - single binary: only the basefw * - split release: basefw and two libraries (openmodules, debug) * * With split firmware release it is also allowed that for example only the * debug library is present (the openmodules content is built in the basefw). * * To handle the permutations try to load the openmodules then the debug * libraries as optional ones after the basefw boot. * * The libraries for the split release are stored alongside the basefw on the * filesystem. */int sof_ipc4_complete_split_release(struct snd_sof_dev *sdev){	static const char * const lib_bundle[] = { "openmodules", "debug" };	const char *fw_filename = sdev->pdata->fw_filename;	const char *lib_filename, *p;	size_t lib_name_base_size;	unsigned long lib_id = 1;	char *lib_name_base;	int i; 	p = strstr(fw_filename, ".ri");	if (!p || strlen(p) != 3) {		dev_info(sdev->dev,			 "%s: Firmware name '%s' is missing .ri extension\n",			 __func__, fw_filename);		return 0;	} 	/* Space for the firmware basename + '\0', without the extension */	lib_name_base_size = strlen(fw_filename) - 2;	lib_name_base = kzalloc(lib_name_base_size, GFP_KERNEL);	if (!lib_name_base)		return -ENOMEM; 	/*	 * strscpy will 0 terminate the copied string, removing the '.ri' from	 * the end of the fw_filename, for example:	 * fw_filename:		"sof-ptl.ri\0"	 * lib_name_base:	"sof-ptl\0"	 */	strscpy(lib_name_base, fw_filename, lib_name_base_size); 	for (i = 0; i < ARRAY_SIZE(lib_bundle); i++) {		int ret; 		lib_filename = kasprintf(GFP_KERNEL, "%s/%s-%s.ri",					 sdev->pdata->fw_filename_prefix,					 lib_name_base, lib_bundle[i]);		if (!lib_filename) {			kfree(lib_name_base);			return -ENOMEM;		} 		ret = sof_ipc4_load_library(sdev, lib_id, lib_filename, true);		if (ret)			dev_warn(sdev->dev, "%s: Failed to load %s: %d\n",				 __func__, lib_filename, ret);		else			lib_id++; 		kfree(lib_filename);	} 	kfree(lib_name_base); 	return 0;} static int sof_ipc4_load_library_by_uuid(struct snd_sof_dev *sdev,					 unsigned long lib_id, const guid_t *uuid){	const char *lib_filename;	int ret; 	if (!sdev->pdata->fw_lib_prefix) {		dev_err(sdev->dev,			"Library loading is not supported due to not set library path\n");		return -EINVAL;	} 	lib_filename = kasprintf(GFP_KERNEL, "%s/%pUL.bin",				 sdev->pdata->fw_lib_prefix, uuid);	if (!lib_filename)		return -ENOMEM; 	ret = sof_ipc4_load_library(sdev, lib_id, lib_filename, false); 	kfree(lib_filename); 	return ret;} struct sof_ipc4_fw_module *sof_ipc4_find_module_by_uuid(struct snd_sof_dev *sdev,							const guid_t *uuid){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	struct sof_ipc4_fw_library *fw_lib;	unsigned long lib_id;	int i, ret; 	if (guid_is_null(uuid))		return NULL; 	xa_for_each(&ipc4_data->fw_lib_xa, lib_id, fw_lib) {		for (i = 0; i < fw_lib->num_modules; i++) {			if (guid_equal(uuid, &fw_lib->modules[i].man4_module_entry.uuid))				return &fw_lib->modules[i];		}	} 	/*	 * Do not attempt to load external library in case the maximum number of	 * firmware libraries have been already loaded	 */	if ((lib_id + 1) == ipc4_data->max_libs_count) {		dev_err(sdev->dev,			"%s: Maximum allowed number of libraries reached (%u)\n",			__func__, ipc4_data->max_libs_count);		return NULL;	} 	/* The module cannot be found, try to load it as a library */	ret = sof_ipc4_load_library_by_uuid(sdev, lib_id + 1, uuid);	if (ret)		return NULL; 	/* Look for the module in the newly loaded library, it should be available now */	xa_for_each_start(&ipc4_data->fw_lib_xa, lib_id, fw_lib, lib_id) {		for (i = 0; i < fw_lib->num_modules; i++) {			if (guid_equal(uuid, &fw_lib->modules[i].man4_module_entry.uuid))				return &fw_lib->modules[i];		}	} 	return NULL;} static int sof_ipc4_validate_firmware(struct snd_sof_dev *sdev){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	u32 fw_hdr_offset = ipc4_data->manifest_fw_hdr_offset;	struct sof_man4_fw_binary_header *fw_header;	const struct firmware *fw = sdev->basefw.fw;	struct sof_ext_manifest4_hdr *ext_man_hdr; 	ext_man_hdr = (struct sof_ext_manifest4_hdr *)fw->data;	fw_header = (struct sof_man4_fw_binary_header *)				(fw->data + ext_man_hdr->len + fw_hdr_offset); 	/* TODO: Add firmware verification code here */ 	dev_dbg(sdev->dev, "Validated firmware version: %u.%u.%u.%u\n",		fw_header->major_version, fw_header->minor_version,		fw_header->hotfix_version, fw_header->build_version); 	return 0;} int sof_ipc4_query_fw_configuration(struct snd_sof_dev *sdev){	struct sof_ipc4_fw_data *ipc4_data = sdev->private;	const struct sof_ipc_ops *iops = sdev->ipc->ops;	struct sof_ipc4_fw_version *fw_ver;	struct sof_ipc4_tuple *tuple;	struct sof_ipc4_msg msg;	size_t offset = 0;	int ret; 	/* Get the firmware configuration */	msg.primary = SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);	msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);	msg.primary |= SOF_IPC4_MOD_ID(SOF_IPC4_MOD_INIT_BASEFW_MOD_ID);	msg.primary |= SOF_IPC4_MOD_INSTANCE(SOF_IPC4_MOD_INIT_BASEFW_INSTANCE_ID);	msg.extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_FW_PARAM_FW_CONFIG); 	msg.data_size = sdev->ipc->max_payload_size;	msg.data_ptr = kzalloc(msg.data_size, GFP_KERNEL);	if (!msg.data_ptr)		return -ENOMEM; 	ret = iops->set_get_data(sdev, &msg, msg.data_size, false);	if (ret)		goto out; 	while (offset < msg.data_size) {		tuple = (struct sof_ipc4_tuple *)((u8 *)msg.data_ptr + offset); 		switch (tuple->type) {		case SOF_IPC4_FW_CFG_FW_VERSION:			fw_ver = (struct sof_ipc4_fw_version *)tuple->value; 			dev_info(sdev->dev,				 "Booted firmware version: %u.%u.%u.%u\n",				 fw_ver->major, fw_ver->minor, fw_ver->hotfix,				 fw_ver->build);			break;		case SOF_IPC4_FW_CFG_DL_MAILBOX_BYTES:			trace_sof_ipc4_fw_config(sdev, "DL mailbox size", *tuple->value);			break;		case SOF_IPC4_FW_CFG_UL_MAILBOX_BYTES:			trace_sof_ipc4_fw_config(sdev, "UL mailbox size", *tuple->value);			break;		case SOF_IPC4_FW_CFG_TRACE_LOG_BYTES:			trace_sof_ipc4_fw_config(sdev, "Trace log size", *tuple->value);			ipc4_data->mtrace_log_bytes = *tuple->value;			break;		case SOF_IPC4_FW_CFG_MAX_LIBS_COUNT:			trace_sof_ipc4_fw_config(sdev, "maximum number of libraries",						 *tuple->value);			ipc4_data->max_libs_count = *tuple->value;			if (!ipc4_data->max_libs_count)				ipc4_data->max_libs_count = 1;			break;		case SOF_IPC4_FW_CFG_MAX_PPL_COUNT:			ipc4_data->max_num_pipelines = *tuple->value;			trace_sof_ipc4_fw_config(sdev, "Max PPL count %d",						 ipc4_data->max_num_pipelines);			if (ipc4_data->max_num_pipelines <= 0) {				dev_err(sdev->dev, "Invalid max_num_pipelines %d",					ipc4_data->max_num_pipelines);				ret = -EINVAL;				goto out;			}			break;		case SOF_IPC4_FW_CONTEXT_SAVE:			ipc4_data->fw_context_save = *tuple->value;			/*			 * Set the default libraries_restored value - if full			 * context save is supported then it means that			 * libraries are restored			 */			ipc4_data->libraries_restored = ipc4_data->fw_context_save;			break;		default:			break;		} 		offset += sizeof(*tuple) + tuple->size;	} 	/* Get the hardware configuration */	msg.primary = SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);	msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);	msg.primary |= SOF_IPC4_MOD_ID(SOF_IPC4_MOD_INIT_BASEFW_MOD_ID);	msg.primary |= SOF_IPC4_MOD_INSTANCE(SOF_IPC4_MOD_INIT_BASEFW_INSTANCE_ID);	msg.extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_FW_PARAM_HW_CONFIG_GET); 	msg.data_size = sdev->ipc->max_payload_size;

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