libsyscall/wrappers/csr.c

   1 /*
   2  * Copyright (c) 2014 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <sys/csr.h>
  25 #include <sys/types.h>
  26
  27 /* Syscall entry point */
  28 int __csrctl(csr_op_t op, void *buffer, size_t size);
  29
  30 int csr_check(csr_config_t mask)
  31 {
  32         return __csrctl(CSR_OP_CHECK, &mask, sizeof(csr_config_t));
  33 }
  34
  35 int csr_get_active_config(csr_config_t *config)
  36 {
  37         return __csrctl(CSR_OP_GET_ACTIVE_CONFIG, config, sizeof(csr_config_t));
  38 }
  39
  40 int csr_get_pending_config(csr_config_t *config)
  41 {
  42         return __csrctl(CSR_OP_GET_PENDING_CONFIG, config, sizeof(csr_config_t));
  43 }