remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump

Register the MDT segments, custom dumpfn and private data with the
remoteproc core dump functionality.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/qcom_q6v5_mss.c

@@ -1064,10 +1064,52 @@ 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 *mba_fw)
+{
+	const struct firmware *fw;
+	const struct elf32_phdr *phdrs;
+	const struct elf32_phdr *phdr;
+	const struct elf32_hdr *ehdr;
+	struct q6v5 *qproc = rproc->priv;
+	unsigned long i;
+	int ret;
+
+	ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+	if (ret < 0) {
+		dev_err(qproc->dev, "unable to load modem.mdt\n");
+		return ret;
+	}
+
+	ehdr = (struct elf32_hdr *)fw->data;
+	phdrs = (struct elf32_phdr *)(ehdr + 1);
+	qproc->dump_complete_mask = 0;
+
+	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,
+							(void *)i);
+		if (ret)
+			break;
+
+		qproc->dump_complete_mask |= BIT(i);
+	}
+
+	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,
 };