diff options
Diffstat (limited to 'sound/soc/intel/skylake/skl-sst-utils.c')
-rw-r--r-- | sound/soc/intel/skylake/skl-sst-utils.c | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c deleted file mode 100644 index b776c58dcf47..000000000000 --- a/sound/soc/intel/skylake/skl-sst-utils.c +++ /dev/null @@ -1,425 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * skl-sst-utils.c - SKL sst utils functions - * - * Copyright (C) 2016 Intel Corp - */ - -#include <linux/device.h> -#include <linux/slab.h> -#include <linux/uuid.h> -#include "../common/sst-dsp.h" -#include "../common/sst-dsp-priv.h" -#include "skl.h" - -#define DEFAULT_HASH_SHA256_LEN 32 - -/* FW Extended Manifest Header id = $AE1 */ -#define SKL_EXT_MANIFEST_HEADER_MAGIC 0x31454124 - -union seg_flags { - u32 ul; - struct { - u32 contents : 1; - u32 alloc : 1; - u32 load : 1; - u32 read_only : 1; - u32 code : 1; - u32 data : 1; - u32 _rsvd0 : 2; - u32 type : 4; - u32 _rsvd1 : 4; - u32 length : 16; - } r; -} __packed; - -struct segment_desc { - union seg_flags flags; - u32 v_base_addr; - u32 file_offset; -}; - -struct module_type { - u32 load_type : 4; - u32 auto_start : 1; - u32 domain_ll : 1; - u32 domain_dp : 1; - u32 rsvd : 25; -} __packed; - -struct adsp_module_entry { - u32 struct_id; - u8 name[8]; - u8 uuid[16]; - struct module_type type; - u8 hash1[DEFAULT_HASH_SHA256_LEN]; - u32 entry_point; - u16 cfg_offset; - u16 cfg_count; - u32 affinity_mask; - u16 instance_max_count; - u16 instance_bss_size; - struct segment_desc segments[3]; -} __packed; - -struct adsp_fw_hdr { - u32 id; - u32 len; - u8 name[8]; - u32 preload_page_count; - u32 fw_image_flags; - u32 feature_mask; - u16 major; - u16 minor; - u16 hotfix; - u16 build; - u32 num_modules; - u32 hw_buf_base; - u32 hw_buf_length; - u32 load_offset; -} __packed; - -struct skl_ext_manifest_hdr { - u32 id; - u32 len; - u16 version_major; - u16 version_minor; - u32 entries; -}; - -static int skl_get_pvtid_map(struct uuid_module *module, int instance_id) -{ - int pvt_id; - - for (pvt_id = 0; pvt_id < module->max_instance; pvt_id++) { - if (module->instance_id[pvt_id] == instance_id) - return pvt_id; - } - return -EINVAL; -} - -int skl_get_pvt_instance_id_map(struct skl_dev *skl, - int module_id, int instance_id) -{ - struct uuid_module *module; - - list_for_each_entry(module, &skl->uuid_list, list) { - if (module->id == module_id) - return skl_get_pvtid_map(module, instance_id); - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(skl_get_pvt_instance_id_map); - -static inline int skl_getid_32(struct uuid_module *module, u64 *val, - int word1_mask, int word2_mask) -{ - int index, max_inst, pvt_id; - u32 mask_val; - - max_inst = module->max_instance; - mask_val = (u32)(*val >> word1_mask); - - if (mask_val != 0xffffffff) { - index = ffz(mask_val); - pvt_id = index + word1_mask + word2_mask; - if (pvt_id <= (max_inst - 1)) { - *val |= 1ULL << (index + word1_mask); - return pvt_id; - } - } - - return -EINVAL; -} - -static inline int skl_pvtid_128(struct uuid_module *module) -{ - int j, i, word1_mask, word2_mask = 0, pvt_id; - - for (j = 0; j < MAX_INSTANCE_BUFF; j++) { - word1_mask = 0; - - for (i = 0; i < 2; i++) { - pvt_id = skl_getid_32(module, &module->pvt_id[j], - word1_mask, word2_mask); - if (pvt_id >= 0) - return pvt_id; - - word1_mask += 32; - if ((word1_mask + word2_mask) >= module->max_instance) - return -EINVAL; - } - - word2_mask += 64; - if (word2_mask >= module->max_instance) - return -EINVAL; - } - - return -EINVAL; -} - -/** - * skl_get_pvt_id: generate a private id for use as module id - * - * @skl: driver context - * @uuid_mod: module's uuid - * @instance_id: module's instance id - * - * This generates a 128 bit private unique id for a module TYPE so that - * module instance is unique - */ -int skl_get_pvt_id(struct skl_dev *skl, guid_t *uuid_mod, int instance_id) -{ - struct uuid_module *module; - int pvt_id; - - list_for_each_entry(module, &skl->uuid_list, list) { - if (guid_equal(uuid_mod, &module->uuid)) { - - pvt_id = skl_pvtid_128(module); - if (pvt_id >= 0) { - module->instance_id[pvt_id] = instance_id; - - return pvt_id; - } - } - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(skl_get_pvt_id); - -/** - * skl_put_pvt_id: free up the private id allocated - * - * @skl: driver context - * @uuid_mod: module's uuid - * @pvt_id: module pvt id - * - * This frees a 128 bit private unique id previously generated - */ -int skl_put_pvt_id(struct skl_dev *skl, guid_t *uuid_mod, int *pvt_id) -{ - int i; - struct uuid_module *module; - - list_for_each_entry(module, &skl->uuid_list, list) { - if (guid_equal(uuid_mod, &module->uuid)) { - - if (*pvt_id != 0) - i = (*pvt_id) / 64; - else - i = 0; - - module->pvt_id[i] &= ~(1 << (*pvt_id)); - *pvt_id = -1; - return 0; - } - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(skl_put_pvt_id); - -/* - * Parse the firmware binary to get the UUID, module id - * and loadable flags - */ -int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, - unsigned int offset, int index) -{ - struct adsp_fw_hdr *adsp_hdr; - struct adsp_module_entry *mod_entry; - int i, num_entry, size; - const char *buf; - struct skl_dev *skl = ctx->thread_context; - struct uuid_module *module; - struct firmware stripped_fw; - unsigned int safe_file; - int ret; - - /* Get the FW pointer to derive ADSP header */ - stripped_fw.data = fw->data; - stripped_fw.size = fw->size; - - skl_dsp_strip_extended_manifest(&stripped_fw); - - buf = stripped_fw.data; - - /* check if we have enough space in file to move to header */ - safe_file = sizeof(*adsp_hdr) + offset; - if (stripped_fw.size <= safe_file) { - dev_err(ctx->dev, "Small fw file size, No space for hdr\n"); - return -EINVAL; - } - - adsp_hdr = (struct adsp_fw_hdr *)(buf + offset); - - /* check 1st module entry is in file */ - safe_file += adsp_hdr->len + sizeof(*mod_entry); - if (stripped_fw.size <= safe_file) { - dev_err(ctx->dev, "Small fw file size, No module entry\n"); - return -EINVAL; - } - - mod_entry = (struct adsp_module_entry *)(buf + offset + adsp_hdr->len); - - num_entry = adsp_hdr->num_modules; - - /* check all entries are in file */ - safe_file += num_entry * sizeof(*mod_entry); - if (stripped_fw.size <= safe_file) { - dev_err(ctx->dev, "Small fw file size, No modules\n"); - return -EINVAL; - } - - - /* - * Read the UUID(GUID) from FW Manifest. - * - * The 16 byte UUID format is: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX - * Populate the UUID table to store module_id and loadable flags - * for the module. - */ - - for (i = 0; i < num_entry; i++, mod_entry++) { - module = kzalloc(sizeof(*module), GFP_KERNEL); - if (!module) { - ret = -ENOMEM; - goto free_uuid_list; - } - - import_guid(&module->uuid, mod_entry->uuid); - - module->id = (i | (index << 12)); - module->is_loadable = mod_entry->type.load_type; - module->max_instance = mod_entry->instance_max_count; - size = sizeof(int) * mod_entry->instance_max_count; - module->instance_id = devm_kzalloc(ctx->dev, size, GFP_KERNEL); - if (!module->instance_id) { - ret = -ENOMEM; - kfree(module); - goto free_uuid_list; - } - - list_add_tail(&module->list, &skl->uuid_list); - - dev_dbg(ctx->dev, - "Adding uuid :%pUL mod id: %d Loadable: %d\n", - &module->uuid, module->id, module->is_loadable); - } - - return 0; - -free_uuid_list: - skl_freeup_uuid_list(skl); - return ret; -} - -void skl_freeup_uuid_list(struct skl_dev *skl) -{ - struct uuid_module *uuid, *_uuid; - - list_for_each_entry_safe(uuid, _uuid, &skl->uuid_list, list) { - list_del(&uuid->list); - kfree(uuid); - } -} - -/* - * some firmware binary contains some extended manifest. This needs - * to be stripped in that case before we load and use that image. - * - * Get the module id for the module by checking - * the table for the UUID for the module - */ -int skl_dsp_strip_extended_manifest(struct firmware *fw) -{ - struct skl_ext_manifest_hdr *hdr; - - /* check if fw file is greater than header we are looking */ - if (fw->size < sizeof(hdr)) { - pr_err("%s: Firmware file small, no hdr\n", __func__); - return -EINVAL; - } - - hdr = (struct skl_ext_manifest_hdr *)fw->data; - - if (hdr->id == SKL_EXT_MANIFEST_HEADER_MAGIC) { - fw->size -= hdr->len; - fw->data += hdr->len; - } - - return 0; -} - -int skl_sst_ctx_init(struct device *dev, int irq, const char *fw_name, - struct skl_dsp_loader_ops dsp_ops, struct skl_dev **dsp, - struct sst_dsp_device *skl_dev) -{ - struct skl_dev *skl = *dsp; - struct sst_dsp *sst; - - skl->dev = dev; - skl_dev->thread_context = skl; - INIT_LIST_HEAD(&skl->uuid_list); - skl->dsp = skl_dsp_ctx_init(dev, skl_dev, irq); - if (!skl->dsp) { - dev_err(skl->dev, "%s: no device\n", __func__); - return -ENODEV; - } - - sst = skl->dsp; - sst->fw_name = fw_name; - sst->dsp_ops = dsp_ops; - init_waitqueue_head(&skl->mod_load_wait); - INIT_LIST_HEAD(&sst->module_list); - - skl->is_first_boot = true; - - return 0; -} - -int skl_prepare_lib_load(struct skl_dev *skl, struct skl_lib_info *linfo, - struct firmware *stripped_fw, - unsigned int hdr_offset, int index) -{ - int ret; - struct sst_dsp *dsp = skl->dsp; - - if (linfo->fw == NULL) { - ret = request_firmware(&linfo->fw, linfo->name, - skl->dev); - if (ret < 0) { - dev_err(skl->dev, "Request lib %s failed:%d\n", - linfo->name, ret); - return ret; - } - } - - if (skl->is_first_boot) { - ret = snd_skl_parse_uuids(dsp, linfo->fw, hdr_offset, index); - if (ret < 0) - return ret; - } - - stripped_fw->data = linfo->fw->data; - stripped_fw->size = linfo->fw->size; - skl_dsp_strip_extended_manifest(stripped_fw); - - return 0; -} - -void skl_release_library(struct skl_lib_info *linfo, int lib_count) -{ - int i; - - /* library indices start from 1 to N. 0 represents base FW */ - for (i = 1; i < lib_count; i++) { - if (linfo[i].fw) { - release_firmware(linfo[i].fw); - linfo[i].fw = NULL; - } - } -} |