remoteproc: qcom_q6v5_mss: Re-order writes to the IMEM region

Any write access to the IMEM region when the Q6 is setting up XPU
protection on it will result in a XPU violation. Fix this by ensuring
IMEM writes related to the MBA post-mortem logs happen before the Q6
is brought out of reset.

Fixes: 318130c ("remoteproc: qcom_q6v5_mss: Add MBA log extraction support")
Signed-off-by: Sibi Sankar <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Tested-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: Sibi Sankar

drivers/remoteproc/qcom_q6v5_mss.c

@@ -1158,6 +1158,9 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 		goto disable_active_clks;
 	}
 
+	if (qproc->has_mba_logs)
+		qcom_pil_info_store("mba", qproc->mba_phys, MBA_LOG_SIZE);
+
 	writel(qproc->mba_phys, qproc->rmb_base + RMB_MBA_IMAGE_REG);
 	if (qproc->dp_size) {
 		writel(qproc->mba_phys + SZ_1M, qproc->rmb_base + RMB_PMI_CODE_START_REG);
@@ -1168,9 +1171,6 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 	if (ret)
 		goto reclaim_mba;
 
-	if (qproc->has_mba_logs)
-		qcom_pil_info_store("mba", qproc->mba_phys, MBA_LOG_SIZE);
-
 	ret = q6v5_rmb_mba_wait(qproc, 0, 5000);
 	if (ret == -ETIMEDOUT) {
 		dev_err(qproc->dev, "MBA boot timed out\n");