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authorSiddharth Gupta2023-02-24 13:17:07 -0800
committerBjorn Andersson2023-07-15 12:56:49 -0700
commit5c43ed8ad20b29c89991c03d4c84afb9c53608a3 (patch)
treece89a05d97251b57aa1f1c460139248dd98e9af4 /drivers/remoteproc
parentf247f08da0ce822de0d6b2feec811dd6d4d599ce (diff)
remoteproc: qcom: Add full coredump fallback mechanism
If a remoteproc's firmware does not support minidump but the driver adds an ID, the minidump driver does not collect any coredumps when the remoteproc crashes. This hinders the purpose of coredump collection. This change adds a fallback mechanism in the event of a crash. Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org> Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com> Link: https://lore.kernel.org/r/20230224211707.30916-3-quic_gokukris@quicinc.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_common.c13
-rw-r--r--drivers/remoteproc/qcom_q6v5_pas.c1
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index a0d4238492e9..4bbb47dda05e 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -168,12 +168,21 @@ void qcom_minidump(struct rproc *rproc, unsigned int minidump_id,
*/
if (subsystem->regions_baseptr == 0 ||
le32_to_cpu(subsystem->status) != 1 ||
- le32_to_cpu(subsystem->enabled) != MD_SS_ENABLED ||
- le32_to_cpu(subsystem->encryption_status) != MD_SS_ENCR_DONE) {
+ le32_to_cpu(subsystem->enabled) != MD_SS_ENABLED) {
+ return rproc_coredump(rproc);
+ }
+
+ if (le32_to_cpu(subsystem->encryption_status) != MD_SS_ENCR_DONE) {
dev_err(&rproc->dev, "Minidump not ready, skipping\n");
return;
}
+ /**
+ * Clear out the dump segments populated by parse_fw before
+ * re-populating them with minidump segments.
+ */
+ rproc_coredump_cleanup(rproc);
+
ret = qcom_add_minidump_segments(rproc, subsystem, rproc_dumpfn_t);
if (ret) {
dev_err(&rproc->dev, "Failed with error: %d while adding minidump entries\n", ret);
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 0caedb090547..d5b62066743f 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -426,6 +426,7 @@ static const struct rproc_ops adsp_minidump_ops = {
.start = adsp_start,
.stop = adsp_stop,
.da_to_va = adsp_da_to_va,
+ .parse_fw = qcom_register_dump_segments,
.load = adsp_load,
.panic = adsp_panic,
.coredump = adsp_minidump,