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-rw-r--r--include/linux/arm-smccc.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 733dcf98e7d8..4e97ba64dbb4 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -82,6 +82,22 @@
#include <linux/linkage.h>
#include <linux/types.h>
+
+enum arm_smccc_conduit {
+ SMCCC_CONDUIT_NONE,
+ SMCCC_CONDUIT_SMC,
+ SMCCC_CONDUIT_HVC,
+};
+
+/**
+ * arm_smccc_1_1_get_conduit()
+ *
+ * Returns the conduit to be used for SMCCCv1.1 or later.
+ *
+ * When SMCCCv1.1 is not present, returns SMCCC_CONDUIT_NONE.
+ */
+enum arm_smccc_conduit arm_smccc_1_1_get_conduit(void);
+
/**
* struct arm_smccc_res - Result from SMC/HVC call
* @a0-a3 result values from registers 0 to 3