tcg/sparc/tcg-target.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #define TCG_TARGET_SPARC 1
  25
  26 #if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
  27 #define TCG_TARGET_REG_BITS 64
  28 #else
  29 #define TCG_TARGET_REG_BITS 32
  30 #endif
  31
  32 #define TCG_TARGET_WORDS_BIGENDIAN
  33
  34 #define TCG_TARGET_NB_REGS 32
  35
  36 enum {
  37     TCG_REG_G0 = 0,
  38     TCG_REG_G1,
  39     TCG_REG_G2,
  40     TCG_REG_G3,
  41     TCG_REG_G4,
  42     TCG_REG_G5,
  43     TCG_REG_G6,
  44     TCG_REG_G7,
  45     TCG_REG_O0,
  46     TCG_REG_O1,
  47     TCG_REG_O2,
  48     TCG_REG_O3,
  49     TCG_REG_O4,
  50     TCG_REG_O5,
  51     TCG_REG_O6,
  52     TCG_REG_O7,
  53     TCG_REG_L0,
  54     TCG_REG_L1,
  55     TCG_REG_L2,
  56     TCG_REG_L3,
  57     TCG_REG_L4,
  58     TCG_REG_L5,
  59     TCG_REG_L6,
  60     TCG_REG_L7,
  61     TCG_REG_I0,
  62     TCG_REG_I1,
  63     TCG_REG_I2,
  64     TCG_REG_I3,
  65     TCG_REG_I4,
  66     TCG_REG_I5,
  67     TCG_REG_I6,
  68     TCG_REG_I7,
  69 };
  70
  71 #define TCG_CT_CONST_S11 0x100
  72 #define TCG_CT_CONST_S13 0x200
  73
  74 /* used for function call generation */
  75 #define TCG_REG_CALL_STACK TCG_REG_I6
  76 #ifdef __arch64__
  77 // Reserve space for AREG0
  78 #define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \
  79                                    TCG_STATIC_CALL_ARGS_SIZE)
  80 #define TCG_TARGET_CALL_STACK_OFFSET (2047 - 16)
  81 #define TCG_TARGET_STACK_ALIGN 16
  82 #else
  83 // AREG0 + one word for alignment
  84 #define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long) + \
  85                                    TCG_STATIC_CALL_ARGS_SIZE)
  86 #define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
  87 #define TCG_TARGET_STACK_ALIGN 8
  88 #endif
  89
  90 /* optional instructions */
  91 //#define TCG_TARGET_HAS_bswap32_i32
  92 //#define TCG_TARGET_HAS_bswap64_i64
  93 //#define TCG_TARGET_HAS_neg_i32
  94 //#define TCG_TARGET_HAS_neg_i64
  95
  96
  97 /* Note: must be synced with dyngen-exec.h and Makefile.target */
  98 #ifdef HOST_SOLARIS
  99 #define TCG_AREG0 TCG_REG_G2
 100 #define TCG_AREG1 TCG_REG_G3
 101 #define TCG_AREG2 TCG_REG_G4
 102 #elif defined(__sparc_v9__)
 103 #define TCG_AREG0 TCG_REG_G5
 104 #define TCG_AREG1 TCG_REG_G6
 105 #define TCG_AREG2 TCG_REG_G7
 106 #else
 107 #define TCG_AREG0 TCG_REG_G6
 108 #define TCG_AREG1 TCG_REG_G1
 109 #define TCG_AREG2 TCG_REG_G2
 110 #endif
 111
 112 static inline void flush_icache_range(unsigned long start, unsigned long stop)
 113 {
 114     unsigned long p;
 115
 116     p = start & ~(8UL - 1UL);
 117     stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);
 118
 119     for (; p < stop; p += 8)
 120         __asm__ __volatile__("flush\t%0" : : "r" (p));
 121 }