libitm/config/powerpc/target.h

   1 /* Copyright (C) 2012 Free Software Foundation, Inc.
   2    Contributed by Richard Henderson <rth@redhat.com>.
   3
   4    This file is part of the GNU Transactional Memory Library (libitm).
   5
   6    Libitm is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
  12    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14    more details.
  15
  16    Under Section 7 of GPL version 3, you are granted additional
  17    permissions described in the GCC Runtime Library Exception, version
  18    3.1, as published by the Free Software Foundation.
  19
  20    You should have received a copy of the GNU General Public License and
  21    a copy of the GCC Runtime Library Exception along with this program;
  22    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23    <http://www.gnu.org/licenses/>.  */
  24
  25 namespace GTM HIDDEN {
  26
  27 typedef int v128 __attribute__((vector_size(16), may_alias, aligned(16)));
  28 typedef struct gtm_jmpbuf
  29 {
  30 #if defined(__ALTIVEC__) || defined(__VSX__)
  31   v128 vr[12];                  /* vr20-vr31 */
  32   unsigned long long vscr;      /* long long for padding only */
  33 #endif
  34 #ifndef _SOFT_FLOAT
  35   double fr[18];                /* f14-f31 */
  36   double fpscr;
  37 #endif
  38   unsigned long gr[18];         /* r14-r31 */
  39   void *cfa;
  40   unsigned long pc;
  41   unsigned long toc;            /* r2 on aix, r13 on darwin */
  42   unsigned long cr;
  43 } gtm_jmpbuf;
  44
  45 /* The size of one line in hardware caches (in bytes). */
  46 #if defined (__powerpc64__) || defined (__ppc64__)
  47 # define HW_CACHELINE_SIZE 128
  48 #else
  49 # define HW_CACHELINE_SIZE 32
  50 #endif
  51
  52 static inline void
  53 cpu_relax (void)
  54 {
  55   __asm volatile ("" : : : "memory");
  56 }
  57
  58 } // namespace GTM