cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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unistd.h (1006B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2#ifndef _UAPI_XTENSA_UNISTD_H
      3#define _UAPI_XTENSA_UNISTD_H
      4
      5#include <asm/unistd_32.h>
      6
      7#define __ARCH_WANT_SYS_OLDUMOUNT
      8
      9/*
     10 * sysxtensa syscall handler
     11 *
     12 * int sysxtensa (SYS_XTENSA_ATOMIC_SET,     ptr, val,    unused);
     13 * int sysxtensa (SYS_XTENSA_ATOMIC_ADD,     ptr, val,    unused);
     14 * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val,    unused);
     15 * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
     16 *        a2            a6                   a3    a4      a5
     17 */
     18
     19#define SYS_XTENSA_RESERVED               0     /* don't use this */
     20#define SYS_XTENSA_ATOMIC_SET             1     /* set variable */
     21#define SYS_XTENSA_ATOMIC_EXG_ADD         2     /* exchange memory and add */
     22#define SYS_XTENSA_ATOMIC_ADD             3     /* add to memory */
     23#define SYS_XTENSA_ATOMIC_CMP_SWP         4     /* compare and swap */
     24#define SYS_XTENSA_COUNT                  5     /* count */
     25
     26#endif /* _UAPI_XTENSA_UNISTD_H */