From ebac995a8aedd5b0ddfda762efe87adca624b4d3 Mon Sep 17 00:00:00 2001 From: Nikita Travkin Date: Mon, 21 Jul 2025 18:28:03 +0500 Subject: [PATCH] firmware: qcom: tzmem: disable sc7180 platform [ Upstream commit 3cc9a8cadaf66e1a53e5fee48f8bcdb0a3fd5075 ] When SHM bridge is enabled, assigning RMTFS memory causes the calling core to hang if the system is running in EL1. Disable SHM bridge on sc7180 devices to avoid that hang. Signed-off-by: Nikita Travkin Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20250721-sc7180-shm-hang-v1-1-99ad9ffeb5b4@trvn.ru Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- drivers/firmware/qcom/qcom_tzmem.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/qcom/qcom_tzmem.c b/drivers/firmware/qcom/qcom_tzmem.c index 92b3651782355..f8fef622e48fe 100644 --- a/drivers/firmware/qcom/qcom_tzmem.c +++ b/drivers/firmware/qcom/qcom_tzmem.c @@ -76,6 +76,7 @@ static bool qcom_tzmem_using_shm_bridge; /* List of machines that are known to not support SHM bridge correctly. */ static const char *const qcom_tzmem_blacklist[] = { + "qcom,sc7180", /* hang in rmtfs memory assignment */ "qcom,sc8180x", "qcom,sdm670", /* failure in GPU firmware loading */ "qcom,sdm845", /* reset in rmtfs memory assignment */ -- 2.47.3