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 <gem5/asm/generic/m5ops.h>
  34
  35 #if defined(M5OP_ADDR) && defined(M5OP_PIC)
  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@gotpcrel(%rip), %r11;  \
  42         mov (%r11), %r11;                 \
  43         mov $number, %rax;                \
  44         shl $8, %rax;                     \
  45         mov 0(%r11, %rax, 1), %rax;       \
  46         ret;                              \
  47         .endfunc;
  48
  49 #elif defined(M5OP_ADDR) && !defined(M5OP_PIC)
  50 /* Use the memory mapped m5op interface */
  51 #define TWO_BYTE_OP(name, number)         \
  52         .globl name;                      \
  53         .func name;                       \
  54 name:                                     \
  55         mov m5_mem, %r11;                 \
  56         mov $number, %rax;                \
  57         shl $8, %rax;                     \
  58         mov 0(%r11, %rax, 1), %rax;       \
  59         ret;                              \
  60         .endfunc;
  61
  62 #else
  63 /* Use the magic instruction based m5op interface. This does not work
  64  * in virtualized environments.
  65  */
  66
  67 #define TWO_BYTE_OP(name, number)         \
  68         .globl name;                      \
  69         .func name;                       \
  70 name:                                     \
  71         .byte 0x0F, 0x04;                 \
  72         .word number;                     \
  73         ret;                              \
  74         .endfunc;
  75
  76 #endif
  77
  78 TWO_BYTE_OP(m5_arm, M5OP_ARM)
  79 TWO_BYTE_OP(m5_quiesce, M5OP_QUIESCE)
  80 TWO_BYTE_OP(m5_quiesce_ns, M5OP_QUIESCE_NS)
  81 TWO_BYTE_OP(m5_quiesce_cycle, M5OP_QUIESCE_CYCLE)
  82 TWO_BYTE_OP(m5_quiesce_time, M5OP_QUIESCE_TIME)
  83 TWO_BYTE_OP(m5_rpns, M5OP_RPNS)
  84 TWO_BYTE_OP(m5_wake_cpu, M5OP_WAKE_CPU)
  85 TWO_BYTE_OP(m5_exit, M5OP_EXIT)
  86 TWO_BYTE_OP(m5_fail, M5OP_FAIL)
  87 TWO_BYTE_OP(m5_init_param, M5OP_INIT_PARAM)
  88 TWO_BYTE_OP(m5_load_symbol, M5OP_LOAD_SYMBOL)
  89 TWO_BYTE_OP(m5_reset_stats, M5OP_RESET_STATS)
  90 TWO_BYTE_OP(m5_dump_stats, M5OP_DUMP_STATS)
  91 TWO_BYTE_OP(m5_dump_reset_stats, M5OP_DUMP_RESET_STATS)
  92 TWO_BYTE_OP(m5_checkpoint, M5OP_CHECKPOINT)
  93 TWO_BYTE_OP(m5_read_file, M5OP_READ_FILE)
  94 TWO_BYTE_OP(m5_write_file, M5OP_WRITE_FILE)
  95 TWO_BYTE_OP(m5_debug_break, M5OP_DEBUG_BREAK)
  96 TWO_BYTE_OP(m5_switch_cpu, M5OP_SWITCH_CPU)
  97 TWO_BYTE_OP(m5_add_symbol, M5OP_ADD_SYMBOL)
  98 TWO_BYTE_OP(m5_panic, M5OP_PANIC)
  99 TWO_BYTE_OP(m5_work_begin, M5OP_WORK_BEGIN)
 100 TWO_BYTE_OP(m5_work_end, M5OP_WORK_END)
 101 TWO_BYTE_OP(m5_dist_toggle_sync, M5OP_DIST_TOGGLE_SYNC)