diff options
Diffstat (limited to 'drivers/remoteproc/qcom_mdt_loader.c')
| -rw-r--r-- | drivers/remoteproc/qcom_mdt_loader.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/remoteproc/qcom_mdt_loader.c b/drivers/remoteproc/qcom_mdt_loader.c deleted file mode 100644 index 2ff18cd6c096..000000000000 --- a/drivers/remoteproc/qcom_mdt_loader.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Qualcomm Peripheral Image Loader - * - * Copyright (C) 2016 Linaro Ltd - * Copyright (C) 2015 Sony Mobile Communications Inc - * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/elf.h> -#include <linux/firmware.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/remoteproc.h> -#include <linux/sizes.h> -#include <linux/slab.h> - -#include "remoteproc_internal.h" -#include "qcom_mdt_loader.h" - -/** - * qcom_mdt_find_rsc_table() - provide dummy resource table for remoteproc - * @rproc: remoteproc handle - * @fw: firmware header - * @tablesz: outgoing size of the table - * - * Returns a dummy table. - */ -struct resource_table *qcom_mdt_find_rsc_table(struct rproc *rproc, - const struct firmware *fw, - int *tablesz) -{ - static struct resource_table table = { .ver = 1, }; - - *tablesz = sizeof(table); - return &table; -} -EXPORT_SYMBOL_GPL(qcom_mdt_find_rsc_table); - -/** - * qcom_mdt_parse() - extract useful parameters from the mdt header - * @fw: firmware handle - * @fw_addr: optional reference for base of the firmware's memory region - * @fw_size: optional reference for size of the firmware's memory region - * @fw_relocate: optional reference for flagging if the firmware is relocatable - * - * Returns 0 on success, negative errno otherwise. - */ -int qcom_mdt_parse(const struct firmware *fw, phys_addr_t *fw_addr, - size_t *fw_size, bool *fw_relocate) -{ - const struct elf32_phdr *phdrs; - const struct elf32_phdr *phdr; - const struct elf32_hdr *ehdr; - phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX; - phys_addr_t max_addr = 0; - bool relocate = false; - int i; - - ehdr = (struct elf32_hdr *)fw->data; - phdrs = (struct elf32_phdr *)(ehdr + 1); - - for (i = 0; i < ehdr->e_phnum; i++) { - phdr = &phdrs[i]; - - if (phdr->p_type != PT_LOAD) - continue; - - if ((phdr->p_flags & QCOM_MDT_TYPE_MASK) == QCOM_MDT_TYPE_HASH) - continue; - - if (!phdr->p_memsz) - continue; - - if (phdr->p_flags & QCOM_MDT_RELOCATABLE) - relocate = true; - - if (phdr->p_paddr < min_addr) - min_addr = phdr->p_paddr; - - if (phdr->p_paddr + phdr->p_memsz > max_addr) - max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K); - } - - if (fw_addr) - *fw_addr = min_addr; - if (fw_size) - *fw_size = max_addr - min_addr; - if (fw_relocate) - *fw_relocate = relocate; - - return 0; -} -EXPORT_SYMBOL_GPL(qcom_mdt_parse); - -/** - * qcom_mdt_load() - load the firmware which header is defined in fw - * @rproc: rproc handle - * @fw: frimware object for the header - * @firmware: filename of the firmware, for building .bXX names - * - * Returns 0 on success, negative errno otherwise. - */ -int qcom_mdt_load(struct rproc *rproc, - const struct firmware *fw, - const char *firmware) -{ - const struct elf32_phdr *phdrs; - const struct elf32_phdr *phdr; - const struct elf32_hdr *ehdr; - size_t fw_name_len; - char *fw_name; - void *ptr; - int ret; - int i; - - ehdr = (struct elf32_hdr *)fw->data; - phdrs = (struct elf32_phdr *)(ehdr + 1); - - fw_name_len = strlen(firmware); - if (fw_name_len <= 4) - return -EINVAL; - - fw_name = kstrdup(firmware, GFP_KERNEL); - if (!fw_name) - return -ENOMEM; - - for (i = 0; i < ehdr->e_phnum; i++) { - phdr = &phdrs[i]; - - if (phdr->p_type != PT_LOAD) - continue; - - if ((phdr->p_flags & QCOM_MDT_TYPE_MASK) == QCOM_MDT_TYPE_HASH) - continue; - - if (!phdr->p_memsz) - continue; - - ptr = rproc_da_to_va(rproc, phdr->p_paddr, phdr->p_memsz); - if (!ptr) { - dev_err(&rproc->dev, "segment outside memory range\n"); - ret = -EINVAL; - break; - } - - if (phdr->p_filesz) { - sprintf(fw_name + fw_name_len - 3, "b%02d", i); - ret = request_firmware(&fw, fw_name, &rproc->dev); - if (ret) { - dev_err(&rproc->dev, "failed to load %s\n", - fw_name); - break; - } - - memcpy(ptr, fw->data, fw->size); - - release_firmware(fw); - } - - if (phdr->p_memsz > phdr->p_filesz) - memset(ptr + phdr->p_filesz, 0, phdr->p_memsz - phdr->p_filesz); - } - - kfree(fw_name); - - return ret; -} -EXPORT_SYMBOL_GPL(qcom_mdt_load); - -MODULE_DESCRIPTION("Firmware parser for Qualcomm MDT format"); -MODULE_LICENSE("GPL v2"); |