summaryrefslogtreecommitdiff
path: root/include/linux/arm-smccc.h
diff options
context:
space:
mode:
authorSudeep Holla <sudeep.holla@arm.com>2020-05-18 12:12:18 +0300
committerWill Deacon <will@kernel.org>2020-05-20 21:10:37 +0300
commit0441bfe7f00acaae7c4937ba0ca48ee1de9b709f (patch)
tree21e7ca40f7cb4c186725e0e1b9603f50a6a60c03 /include/linux/arm-smccc.h
parent15c704ab6244ac95be54b2c05411b70501d50e8f (diff)
downloadlinux-0441bfe7f00acaae7c4937ba0ca48ee1de9b709f.tar.xz
firmware: smccc: Add the definition for SMCCCv1.2 version/error codes
Add the definition for SMCCC v1.2 version and new error code added. While at it, also add a note that ARM DEN 0070A is deprecated and is now merged into the main SMCCC specification(ARM DEN 0028C). Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Etienne Carriere <etienne.carriere@st.com> Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Etienne Carriere <etienne.carriere@st.com> Link: https://lore.kernel.org/r/20200518091222.27467-4-sudeep.holla@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux/arm-smccc.h')
-rw-r--r--include/linux/arm-smccc.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 31b15db9685d..c3784ba8e2a4 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -12,7 +12,7 @@
* specified in
* https://developer.arm.com/docs/den0028/latest
*
- * This code is up-to-date with version DEN 0028 B
+ * This code is up-to-date with version DEN 0028 C
*/
#define ARM_SMCCC_STD_CALL _AC(0,U)
@@ -58,6 +58,7 @@
#define ARM_SMCCC_VERSION_1_0 0x10000
#define ARM_SMCCC_VERSION_1_1 0x10001
+#define ARM_SMCCC_VERSION_1_2 0x10002
#define ARM_SMCCC_VERSION_FUNC_ID \
ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
@@ -316,10 +317,14 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
*/
#define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__)
-/* Return codes defined in ARM DEN 0070A */
+/*
+ * Return codes defined in ARM DEN 0070A
+ * ARM DEN 0070A is now merged/consolidated into ARM DEN 0028 C
+ */
#define SMCCC_RET_SUCCESS 0
#define SMCCC_RET_NOT_SUPPORTED -1
#define SMCCC_RET_NOT_REQUIRED -2
+#define SMCCC_RET_INVALID_PARAMETER -3
/*
* Like arm_smccc_1_1* but always returns SMCCC_RET_NOT_SUPPORTED.