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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_XTENSA_UNISTD_H #define _UAPI_XTENSA_UNISTD_H #include <asm/unistd_32.h> #define __ARCH_WANT_SYS_OLDUMOUNT /* * sysxtensa syscall handler * * int sysxtensa (SYS_XTENSA_ATOMIC_SET, ptr, val, unused); * int sysxtensa (SYS_XTENSA_ATOMIC_ADD, ptr, val, unused); * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val, unused); * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval); * a2 a6 a3 a4 a5 */ #define SYS_XTENSA_RESERVED 0 /* don't use this */ #define SYS_XTENSA_ATOMIC_SET 1 /* set variable */ #define SYS_XTENSA_ATOMIC_EXG_ADD 2 /* exchange memory and add */ #define SYS_XTENSA_ATOMIC_ADD 3 /* add to memory */ #define SYS_XTENSA_ATOMIC_CMP_SWP 4 /* compare and swap */ #define SYS_XTENSA_COUNT 5 /* count */ #endif /* _UAPI_XTENSA_UNISTD_H */