urcu/arch/hppa.h

   1 #ifndef _URCU_ARCH_HPPA_H
   2 #define _URCU_ARCH_HPPA_H
   3
   4 /*
   5  * arch/hppa.h: definitions for hppa architecture
   6  *
   7  * Copyright (c) 2014 Helge Deller <deller@gmx.de>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include <urcu/compiler.h>
  25 #include <urcu/config.h>
  26 #include <urcu/syscall-compat.h>
  27
  28 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 #include <stdlib.h>
  33 #include <sys/time.h>
  34
  35 /*
  36  * On Linux, define the membarrier system call number if not yet available in
  37  * the system headers.
  38  */
  39 #if (defined(__linux__) && !defined(__NR_membarrier))
  40 #define __NR_membarrier         343
  41 #endif
  42
  43 #define HAS_CAA_GET_CYCLES
  44 typedef unsigned long caa_cycles_t;
  45
  46 static inline caa_cycles_t caa_get_cycles(void)
  47 {
  48         caa_cycles_t cycles;
  49
  50         asm volatile("mfctl 16, %0" : "=r" (cycles));
  51         return cycles;
  52 }
  53
  54 #ifdef __cplusplus
  55 }
  56 #endif
  57
  58 #include <urcu/arch/generic.h>
  59
  60 #endif /* _URCU_ARCH_HPPA_H */