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memory: tegra: Skip SID programming if SID registers aren't set

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[ Upstream commit 0d6c918011 ]

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@nvidia.com>
Link: https://lore.kernel.org/r/20231107112713.21399-2-amhetre@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ashish Mhetre 2023-11-07 16:57:13 +05:30 committed by Greg Kroah-Hartman
parent 9064a70eee
commit dff1afeaea
1 changed files with 3 additions and 0 deletions
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3
drivers/memory/tegra/tegra186.c
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@ -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) {
/*