Author: andrew
Date: Wed Jun 13 15:41:22 2018
New Revision: 335063
URL: https://svnweb.freebsd.org/changeset/base/335063
Log:
Add the SMCCC return codes from ARM DEN 0070A.
While here add a comment with the document the function IDs come from.
Sponsored by: DARPA, AFRL
Modified:
head/sys/dev/psci/smccc.h
Modified: head/sys/dev/psci/smccc.h
==============================================================================
--- head/sys/dev/psci/smccc.h Wed Jun 13 15:32:00 2018 (r335062)
+++ head/sys/dev/psci/smccc.h Wed Jun 13 15:41:22 2018 (r335063)
@@ -49,12 +49,21 @@
#define SMCCC_32BIT_CALL 0
#define SMCCC_64BIT_CALL 1
+/*
+ * Arm Architecture Calls.
+ * These are documented in the document ARM DEN 0070A.
+ */
#define SMCCC_VERSION
\
SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_64BIT_CALL, 0, 0)
#define SMCCC_ARCH_FEATURES
\
SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_64BIT_CALL, 0, 1)
#define SMCCC_ARCH_WORKAROUND_1
\
SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_64BIT_CALL, 0, 0x8000)
+
+/* The return values from ARM DEN 0070A. */
+#define SMCCC_RET_SUCCESS 0
+#define SMCCC_RET_NOT_SUPPORTED -1
+#define SMCCC_RET_NOT_REQUIRED -2
int32_t smccc_arch_features(uint32_t);
int smccc_arch_workaround_1(void);
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