iommu: msm: Support secure programming of global registers
Trustzone is now responsible for programming the global registers
of secure IOMMUs. Adjust the code to let the secure world program
the registers for secure IOMMUs. Non-secure IOMMUs will still be
programmed by us.
Change-Id: I352576c863638f241bb4ec94f53413d9d8e8266d
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
diff --git a/arch/arm/mach-msm/include/mach/iommu.h b/arch/arm/mach-msm/include/mach/iommu.h
index 054e70c..57b4bd3 100644
--- a/arch/arm/mach-msm/include/mach/iommu.h
+++ b/arch/arm/mach-msm/include/mach/iommu.h
@@ -161,6 +161,12 @@
}
#endif
+/*
+ * Function to program the global registers of an IOMMU securely.
+ * This should only be called on IOMMUs for which kernel programming
+ * of global registers is not possible
+ */
+int msm_iommu_sec_program_iommu(int sec_id);
static inline int msm_soc_version_supports_iommu_v1(void)
{