From: Sibi Sankar Date: Mon, 19 Aug 2024 07:30:20 +0000 (+0530) Subject: remoteproc: qcom_q6v5_mss: Re-order writes to the IMEM region X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7b22b7719fc17d5979a991c918c868ab041be5c8;p=users%2Fdwmw2%2Flinux.git 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: 318130cc9362 ("remoteproc: qcom_q6v5_mss: Add MBA log extraction support") Signed-off-by: Sibi Sankar Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Link: https://lore.kernel.org/r/20240819073020.3291287-1-quic_sibis@quicinc.com Signed-off-by: Bjorn Andersson --- diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index aaddbaf1099e4..e78bd986dc3f2 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/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");