util/m5/m5op_x86.S

   1 /*
   2  * Copyright (c) 2003-2006 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Gabe Black
  29  *          Nathan Binkert
  30  *          Ali Saidi
  31  */
  32
  33 #include "m5ops.h"
  34
  35 #ifdef M5OP_ADDR
  36 /* Use the memory mapped m5op interface */
  37 #define TWO_BYTE_OP(name, number)         \
  38         .globl name;                      \
  39         .func name;                       \
  40 name:                                     \
  41         mov m5_mem, %r11;                 \
  42         mov $number, %rax;                \
  43         shl $8, %rax;                     \
  44         mov 0(%r11, %rax, 1), %rax;       \
  45         ret;                              \
  46         .endfunc;
  47
  48 #else
  49 /* Use the magic instruction based m5op interface. This does not work
  50  * in virtualized environments.
  51  */
  52
  53 #define TWO_BYTE_OP(name, number)         \
  54         .globl name;                      \
  55         .func name;                       \
  56 name:                                     \
  57         .byte 0x0F, 0x04;                 \
  58         .word number;                     \
  59         ret;                              \
  60         .endfunc;
  61
  62 #endif
  63
  64 TWO_BYTE_OP(arm, arm_func)
  65 TWO_BYTE_OP(quiesce, quiesce_func)
  66 TWO_BYTE_OP(quiesceNs, quiescens_func)
  67 TWO_BYTE_OP(quiesceCycle, quiescecycle_func)
  68 TWO_BYTE_OP(quiesceTime, quiescetime_func)
  69 TWO_BYTE_OP(rpns, rpns_func)
  70 TWO_BYTE_OP(m5_exit, exit_func)
  71 TWO_BYTE_OP(m5_fail, fail_func)
  72 TWO_BYTE_OP(m5_initparam, initparam_func)
  73 TWO_BYTE_OP(m5_loadsymbol, loadsymbol_func)
  74 TWO_BYTE_OP(m5_reset_stats, resetstats_func)
  75 TWO_BYTE_OP(m5_dump_stats, dumpstats_func)
  76 TWO_BYTE_OP(m5_dumpreset_stats, dumprststats_func)
  77 TWO_BYTE_OP(m5_checkpoint, ckpt_func)
  78 TWO_BYTE_OP(m5_readfile, readfile_func)
  79 TWO_BYTE_OP(m5_writefile, writefile_func)
  80 TWO_BYTE_OP(m5_debugbreak, debugbreak_func)
  81 TWO_BYTE_OP(m5_switchcpu, switchcpu_func)
  82 TWO_BYTE_OP(m5_addsymbol, addsymbol_func)
  83 TWO_BYTE_OP(m5_panic, panic_func)
  84 TWO_BYTE_OP(m5_work_begin, work_begin_func)
  85 TWO_BYTE_OP(m5_work_end, work_end_func)
  86 TWO_BYTE_OP(m5_togglesync, togglesync_func)