iommu/arm-smmu: Add support for slave side protection
For targets where we have no hypervisor, slave side protection mechanism
is used to provide buffer protection. Add functionality to make calls
into TZ for mapping/unmapping of buffers.
Change-Id: I845983a25b56ce1b34c90f91ac4a2cf6c4451813
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index 3b37a37..31cf232 100644
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -365,6 +365,16 @@
is handled by transport plug-ins that can be individually enabled and
configured separately.
+config MSM_TZ_SMMU
+ depends on ARCH_MSM8953
+ bool "Helper functions for SMMU configuration through TZ"
+ help
+ Say 'Y' here for targets that need to call into TZ to configure
+ SMMUs for any reason (for example, for errata workarounds or
+ configuration of SMMU virtualization).
+
+ If unsure, say N.
+
config MSM_GLINK_LOOPBACK_SERVER
bool "Generic Link (G-Link) Loopback Server"
help