diff options
Diffstat (limited to 'drivers/remoteproc/qcom_common.c')
-rw-r--r-- | drivers/remoteproc/qcom_common.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c index 00602499713f..b7d53a9cf21f 100644 --- a/drivers/remoteproc/qcom_common.c +++ b/drivers/remoteproc/qcom_common.c @@ -22,6 +22,7 @@ #include <linux/remoteproc.h> #include <linux/rpmsg/qcom_glink.h> #include <linux/rpmsg/qcom_smd.h> +#include <linux/soc/qcom/mdt_loader.h> #include "remoteproc_internal.h" #include "qcom_common.h" @@ -79,6 +80,49 @@ void qcom_remove_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glin } EXPORT_SYMBOL_GPL(qcom_remove_glink_subdev); +/** + * qcom_register_dump_segments() - register segments for coredump + * @rproc: remoteproc handle + * @fw: firmware header + * + * Register all segments of the ELF in the remoteproc coredump segment list + * + * Return: 0 on success, negative errno on failure. + */ +int qcom_register_dump_segments(struct rproc *rproc, + const struct firmware *fw) +{ + const struct elf32_phdr *phdrs; + const struct elf32_phdr *phdr; + const struct elf32_hdr *ehdr; + int ret; + 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; + + ret = rproc_coredump_add_segment(rproc, phdr->p_paddr, + phdr->p_memsz); + if (ret) + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(qcom_register_dump_segments); + static int smd_subdev_probe(struct rproc_subdev *subdev) { struct qcom_rproc_subdev *smd = to_smd_subdev(subdev); |