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| author |   Sibi Sankar <sibis@codeaurora.org> | 2020-03-05 01:17:29 +0530 |
|---|---|---|
| committer |   Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-03-25 22:29:37 -0700 |
| commit | d96f2571dc84d128cacf1944f4ecc87834c779a6 (patch) | |
| tree | fcc9eaeb922989676508e6bf4d7b0bd358e2f8a0 /drivers/remoteproc/qcom_q6v5_mss.c | |
| parent | remoteproc: qcom_q6v5_mss: Validate each segment during loading (diff) | |
| download | wireguard-linux-d96f2571dc84d128cacf1944f4ecc87834c779a6.tar.xz wireguard-linux-d96f2571dc84d128cacf1944f4ecc87834c779a6.zip | |
remoteproc: qcom_q6v5_mss: Reload the mba region on coredump
On secure devices after a wdog/fatal interrupt, the mba region has to be
refreshed in order to prevent the following errors during mba load.
Err Logs:
remoteproc remoteproc2: stopped remote processor 4080000.remoteproc
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
....
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
qcom-q6v5-mss 4080000.remoteproc: MBA booted, loading mpss
Fixes: 7dd8ade24dc2a ("remoteproc: qcom: q6v5-mss: Add custom dump function for modem")
Cc: stable@vger.kernel.org
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200304194729.27979-4-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc/qcom_q6v5_mss.c')
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5_mss.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index b8a922181de8..d7667418a62f 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/drivers/remoteproc/qcom_q6v5_mss.c @@ -1042,6 +1042,23 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc) } } +static int q6v5_reload_mba(struct rproc *rproc) +{ + struct q6v5 *qproc = rproc->priv; + const struct firmware *fw; + int ret; + + ret = request_firmware(&fw, rproc->firmware, qproc->dev); + if (ret < 0) + return ret; + + q6v5_load(rproc, fw); + ret = q6v5_mba_load(qproc); + release_firmware(fw); + + return ret; +} + static int q6v5_mpss_load(struct q6v5 *qproc) { const struct elf32_phdr *phdrs; @@ -1221,7 +1238,7 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc, /* Unlock mba before copying segments */ if (!qproc->dump_mba_loaded) { - ret = q6v5_mba_load(qproc); + ret = q6v5_reload_mba(rproc); if (!ret) { /* Reset ownership back to Linux to copy segments */ ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm, |