diff options
Diffstat (limited to 'drivers/soc/qcom/mdt_loader.c')
| -rw-r--r-- | drivers/soc/qcom/mdt_loader.c | 51 |
1 files changed, 35 insertions, 16 deletions
diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c index c239107cb930..c004d444d698 100644 --- a/drivers/soc/qcom/mdt_loader.c +++ b/drivers/soc/qcom/mdt_loader.c @@ -227,20 +227,9 @@ void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len, } EXPORT_SYMBOL_GPL(qcom_mdt_read_metadata); -/** - * qcom_mdt_pas_init() - initialize PAS region for firmware loading - * @dev: device handle to associate resources with - * @fw: firmware object for the mdt file - * @fw_name: name of the firmware, for construction of segment file names - * @pas_id: PAS identifier - * @mem_phys: physical address of allocated memory region - * @ctx: PAS metadata context, to be released by caller - * - * Returns 0 on success, negative errno otherwise. - */ -int qcom_mdt_pas_init(struct device *dev, const struct firmware *fw, - const char *fw_name, int pas_id, phys_addr_t mem_phys, - struct qcom_scm_pas_metadata *ctx) +static int __qcom_mdt_pas_init(struct device *dev, const struct firmware *fw, + const char *fw_name, int pas_id, phys_addr_t mem_phys, + struct qcom_scm_pas_context *ctx) { const struct elf32_phdr *phdrs; const struct elf32_phdr *phdr; @@ -302,7 +291,6 @@ int qcom_mdt_pas_init(struct device *dev, const struct firmware *fw, out: return ret; } -EXPORT_SYMBOL_GPL(qcom_mdt_pas_init); static bool qcom_mdt_bins_are_split(const struct firmware *fw) { @@ -469,7 +457,7 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw, { int ret; - ret = qcom_mdt_pas_init(dev, fw, fw_name, pas_id, mem_phys, NULL); + ret = __qcom_mdt_pas_init(dev, fw, fw_name, pas_id, mem_phys, NULL); if (ret) return ret; @@ -478,5 +466,36 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw, } EXPORT_SYMBOL_GPL(qcom_mdt_load); +/** + * qcom_mdt_pas_load - Loads and authenticates the metadata of the firmware + * (typically contained in the .mdt file), followed by loading the actual + * firmware segments (e.g., .bXX files). Authentication of the segments done + * by a separate call. + * + * The PAS context must be initialized using qcom_scm_pas_context_init() + * prior to invoking this function. + * + * @ctx: Pointer to the PAS (Peripheral Authentication Service) context + * @fw: Firmware object representing the .mdt file + * @firmware: Name of the firmware used to construct segment file names + * @mem_region: Memory region allocated for loading the firmware + * @reloc_base: Physical address adjusted after relocation + * + * Return: 0 on success or a negative error code on failure. + */ +int qcom_mdt_pas_load(struct qcom_scm_pas_context *ctx, const struct firmware *fw, + const char *firmware, void *mem_region, phys_addr_t *reloc_base) +{ + int ret; + + ret = __qcom_mdt_pas_init(ctx->dev, fw, firmware, ctx->pas_id, ctx->mem_phys, ctx); + if (ret) + return ret; + + return qcom_mdt_load_no_init(ctx->dev, fw, firmware, mem_region, ctx->mem_phys, + ctx->mem_size, reloc_base); +} +EXPORT_SYMBOL_GPL(qcom_mdt_pas_load); + MODULE_DESCRIPTION("Firmware parser for Qualcomm MDT format"); MODULE_LICENSE("GPL v2"); |