Defines function IDs ARM_SMCCC_ARCH_FEATURES used to query SMCCC feature support, applicable from Arm SMCCC v1.1 specification.
Defines macro ARM_SMCCC_RET_NOT_SUPPORTED as generic return identifier for when a SMCCC feature is not supported.
Signed-off-by: Etienne Carriere etienne.carriere@linaro.org --- include/linux/arm-smccc.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index 7f2be23394..94a20c9793 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -51,6 +51,10 @@ #define ARM_SMCCC_QUIRK_NONE 0 #define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */
+#define ARM_SMCCC_ARCH_FEATURES 0x80000001 + +#define ARM_SMCCC_RET_NOT_SUPPORTED ((unsigned long)-1) + #ifndef __ASSEMBLY__
#include <linux/linkage.h>