/usr/share/dpdk/x86_64-default-linuxapp-gcc/include/rte_rtm.h is in dpdk-dev 17.11.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | #ifndef _RTE_RTM_H_
#define _RTE_RTM_H_ 1
/*
* Copyright (c) 2012,2013 Intel Corporation
* Author: Andi Kleen
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* Official RTM intrinsics interface matching gcc/icc, but works
on older gcc compatible compilers and binutils. */
#include <rte_common.h>
#ifdef __cplusplus
extern "C" {
#endif
#define RTE_XBEGIN_STARTED (~0u)
#define RTE_XABORT_EXPLICIT (1 << 0)
#define RTE_XABORT_RETRY (1 << 1)
#define RTE_XABORT_CONFLICT (1 << 2)
#define RTE_XABORT_CAPACITY (1 << 3)
#define RTE_XABORT_DEBUG (1 << 4)
#define RTE_XABORT_NESTED (1 << 5)
#define RTE_XABORT_CODE(x) (((x) >> 24) & 0xff)
static __attribute__((__always_inline__)) inline
unsigned int rte_xbegin(void)
{
unsigned int ret = RTE_XBEGIN_STARTED;
asm volatile(".byte 0xc7,0xf8 ; .long 0" : "+a" (ret) :: "memory");
return ret;
}
static __attribute__((__always_inline__)) inline
void rte_xend(void)
{
asm volatile(".byte 0x0f,0x01,0xd5" ::: "memory");
}
/* not an inline function to workaround a clang bug with -O0 */
#define rte_xabort(status) do { \
asm volatile(".byte 0xc6,0xf8,%P0" :: "i" (status) : "memory"); \
} while (0)
static __attribute__((__always_inline__)) inline
int rte_xtest(void)
{
unsigned char out;
asm volatile(".byte 0x0f,0x01,0xd6 ; setnz %0" :
"=r" (out) :: "memory");
return out;
}
#ifdef __cplusplus
}
#endif
#endif /* _RTE_RTM_H_ */
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