| /* 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 */ |
