[PATCH v3 5/6] remoteproc: qcom: q6v5-pil: Register segments/dumpfn for coredump

Sibi Sankar
2018-07-27T15:20:02Z

Register the MDT segments and custom dumpfn with the remoteproc core
dump functionality.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
drivers/remoteproc/qcom_q6v5_pil.c | 40 ++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index ac3342f9ea5a..22bb049c3e7f 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -1058,10 +1058,50 @@ static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
return qproc->mpss_region + offset;
}

+static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
+ const struct firmware *fw_unused)
+{
+ const struct firmware *fw;
+ const struct elf32_phdr *phdrs;
+ const struct elf32_phdr *phdr;
+ const struct elf32_hdr *ehdr;
+ struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
+ int ret;
+ int i;
+
+ ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+ if (ret < 0) {
+ dev_err(qproc->dev, "unable to load modem.mdt\n");
+ return ret;
+ }
+
+ qproc->valid_mask = 0;
+ ehdr = (struct elf32_hdr *)fw->data;
+ phdrs = (struct elf32_phdr *)(ehdr + 1);
+
+ for (i = 0; i < ehdr->e_phnum; i++) {
+ phdr = &phdrs[i];
+
+ if (!q6v5_phdr_valid(phdr))
+ continue;
+
+ ret = rproc_coredump_add_custom_segment(rproc, phdr->p_paddr,
+ phdr->p_memsz, qcom_q6v5_dump_segment);
+ if (ret)
+ break;
+
+ qproc->valid_mask++;
+ }
+
+ release_firmware(fw);
+ return ret;
+}
+
static const struct rproc_ops q6v5_ops = {
.start = q6v5_start,
.stop = q6v5_stop,
.da_to_va = q6v5_da_to_va,
+ .parse_fw = qcom_q6v5_register_dump_segments,
.load = q6v5_load,
};

--
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