39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
|
/*===---- clwbintrin.h - CLWB intrinsic ------------------------------------===
|
||
|
|
*
|
||
|
|
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
* See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
*
|
||
|
|
*===-----------------------------------------------------------------------===
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __IMMINTRIN_H
|
||
|
|
#error "Never use <clwbintrin.h> directly; include <immintrin.h> instead."
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef __CLWBINTRIN_H
|
||
|
|
#define __CLWBINTRIN_H
|
||
|
|
|
||
|
|
/* Define the default attributes for the functions in this file. */
|
||
|
|
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("clwb")))
|
||
|
|
|
||
|
|
/// Writes back to memory the cache line (if modified) that contains the
|
||
|
|
/// linear address specified in \a __p from any level of the cache hierarchy in
|
||
|
|
/// the cache coherence domain
|
||
|
|
///
|
||
|
|
/// \headerfile <immintrin.h>
|
||
|
|
///
|
||
|
|
/// This intrinsic corresponds to the <c> CLWB </c> instruction.
|
||
|
|
///
|
||
|
|
/// \param __p
|
||
|
|
/// A pointer to the memory location used to identify the cache line to be
|
||
|
|
/// written back.
|
||
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
||
|
|
_mm_clwb(void const *__p) {
|
||
|
|
__builtin_ia32_clwb(__p);
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef __DEFAULT_FN_ATTRS
|
||
|
|
|
||
|
|
#endif
|