[Patch V2 2/2] memory: tegra: Skip SID programming if SID registers aren't set
From: Ashish Mhetre
Date: Tue Nov 07 2023 - 06:27:45 EST
There are few MC clients where SID security and override register
offsets are not specified like "sw_cluster0" in tegra234. Don't program
SID override for such clients because it leads to access to invalid
addresses.
Signed-off-by: Ashish Mhetre <amhetre@xxxxxxxxxx>
---
drivers/memory/tegra/tegra186.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c
index 8203f0db1350..d1f1dfb42716 100644
--- a/drivers/memory/tegra/tegra186.c
+++ b/drivers/memory/tegra/tegra186.c
@@ -75,6 +75,9 @@ static void tegra186_mc_client_sid_override(struct tegra_mc *mc,
{
u32 value, old;
+ if (client->regs.sid.security == 0 && client->regs.sid.override == 0)
+ return;
+
value = readl(mc->regs + client->regs.sid.security);
if ((value & MC_SID_STREAMID_SECURITY_OVERRIDE) == 0) {
/*
--
2.17.1