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 | 33 ++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 87d7f4d0c176..0d3b9d70823e 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -168,6 +168,9 @@ struct q6v5 {
bool running;
bool dump_mba_loaded;
+ unsigned long dump_segment_mask;
+ unsigned long dump_complete_mask;
+
phys_addr_t mba_phys;
void *mba_region;
size_t mba_size;
@@ -961,6 +964,33 @@ 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 mask = BIT((unsigned long)segment->priv);
+ void *ptr = rproc_da_to_va(rproc, segment->da, segment->size);
+
+ /* Unlock mba before copying segments */
+ if (!qproc->dump_mba_loaded)
+ ret = q6v5_mba_load(qproc);
+
+ if (!ptr || ret)
+ memset(dest, 0xff, segment->size);
+ else
+ memcpy(dest, ptr, segment->size);
+
+ qproc->dump_segment_mask |= mask;
+
+ /* Reclaim mba after copying segments */
+ if (qproc->dump_segment_mask == qproc->dump_complete_mask) {
+ if (qproc->dump_mba_loaded)
+ q6v5_mba_reclaim(qproc);
+ }
+}
+
static int q6v5_start(struct rproc *rproc)
{
struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
@@ -989,6 +1019,9 @@ static int q6v5_start(struct rproc *rproc)
if (xfermemop_ret)
dev_err(qproc->dev,
"Failed to reclaim mba buffer system may become unstable\n");
+
+ /* Reset Dump Segment Mask */
+ qproc->dump_segment_mask = 0;
qproc->running = true;
return 0;
--
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