The per segment dump function is responsible for loading the mba
before device memory segments associated with coredump can be populated
and for cleaning up the resources post coredump.
Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---
drivers/remoteproc/qcom_q6v5_mss.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index c475af65ba1d..85db95bfd355 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -182,6 +182,7 @@ struct q6v5 {
struct qcom_sysmon *sysmon;
bool need_mem_protection;
bool has_alt_reset;
+ unsigned long dump_segment_cnt;
int mpss_perm;
int mba_perm;
int version;
@@ -932,6 +933,30 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
return ret < 0 ? ret : 0;
}
+static void qcom_q6v5_dump_segment(struct rproc *rproc,
+ struct rproc_dump_segment *segment,
+ void *dest)
+{
+ int ret = 0;
+ struct q6v5 *qproc = rproc->priv;
+ unsigned long dump_cnt = (unsigned long)segment->priv;
+ void *ptr = rproc_da_to_va(rproc, segment->da, segment->size);
+
+ /* Unlock mba before copying segments */
+ if (!dump_cnt)
+ ret = q6v5_mba_load(qproc);
+
+ if (!ptr || ret)
+ memset(dest, 0xff, segment->size);
+ else
+ memcpy(dest, ptr, segment->size);
+
+ dump_cnt++;
+ /* Reclaim mba after copying segments */
+ if (dump_cnt == qproc->dump_segment_cnt)
+ q6v5_mba_reclaim(qproc);
+}
+
static int q6v5_start(struct rproc *rproc)
{
struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
--
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