Re: [PATCH v6 4/8] remoteproc: qcom: Update rproc parse firmware callback

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On 9/8/22 6:53 PM, Srinivasa Rao Mandadapu wrote:
Change parse_fw callback in rproc ops from qcom_register_dump_segments
to rproc_elf_load_rsc_table, as section header to be parsed for memory
sandboxing required platforms.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
---
  drivers/remoteproc/qcom_q6v5_adsp.c | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index 02d17b4..207270d4 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -447,7 +447,7 @@ static unsigned long adsp_panic(struct rproc *rproc)
  	return qcom_q6v5_panic(&adsp->q6v5);
  }
-static const struct rproc_ops adsp_ops = {
+static struct rproc_ops adsp_ops = {
  	.start = adsp_start,
  	.stop = adsp_stop,
  	.da_to_va = adsp_da_to_va,
@@ -590,6 +590,9 @@ static int adsp_probe(struct platform_device *pdev)
  		return ret;
  	}
+ if (desc->has_iommu)
+		adsp_ops.parse_fw = rproc_elf_load_rsc_table;
+

The parse_fw would still need to perform the register_dump_segments
in addition to elf_load_rsc_table, otherwise you'll lose coredump
functionality for ADSP on SC7280. You could perhaps just follow
qcom_q6v5_mss parse_fw i.e. have a static func internal to adsp
doing both and have it assigned to both wpss/adsp with the
pre-existing has_iommu flag to differentiate between the two. With
this you wouldn't need to remove the const in adsp_ops as well.

  	rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
  			    firmware_name, sizeof(*adsp));
  	if (!rproc) {




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