Date: Wed, 13 Jun 2018 15:41:22 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335063 - head/sys/dev/psci Message-ID: <201806131541.w5DFfMAj004852@repo.freebsd.org>
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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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