github.com/MerlinKodo/gvisor@v0.0.0-20231110090155-957f62ecf90e/pkg/abi/linux/membarrier.go (about)

     1  // Copyright 2020 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package linux
    16  
    17  // membarrier(2) commands, from include/uapi/linux/membarrier.h.
    18  const (
    19  	MEMBARRIER_CMD_QUERY                                = 0
    20  	MEMBARRIER_CMD_GLOBAL                               = (1 << 0)
    21  	MEMBARRIER_CMD_GLOBAL_EXPEDITED                     = (1 << 1)
    22  	MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED            = (1 << 2)
    23  	MEMBARRIER_CMD_PRIVATE_EXPEDITED                    = (1 << 3)
    24  	MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED           = (1 << 4)
    25  	MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE          = (1 << 5)
    26  	MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6)
    27  	MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ               = (1 << 7)
    28  	MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ      = (1 << 8)
    29  )
    30  
    31  // membarrier(2) flags, from include/uapi/linux/membarrier.h.
    32  const (
    33  	MEMBARRIER_CMD_FLAG_CPU = (1 << 0)
    34  )