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630 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
630 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1703 | jermar | 29 | /** @addtogroup sparc64interrupt |
1702 | cejka | 30 | * @{ |
31 | */ |
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630 | jermar | 32 | /** |
1703 | jermar | 33 | * @file |
34 | * @brief This file contains register window trap handlers. |
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630 | jermar | 35 | */ |
36 | |||
1860 | jermar | 37 | #ifndef KERN_sparc64_REGWIN_H_ |
38 | #define KERN_sparc64_REGWIN_H_ |
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630 | jermar | 39 | |
40 | #include <arch/stack.h> |
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1852 | jermar | 41 | #include <arch/arch.h> |
3535 | svoboda | 42 | #include <align.h> |
630 | jermar | 43 | |
44 | #define TT_CLEAN_WINDOW 0x24 |
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1856 | jermar | 45 | #define TT_SPILL_0_NORMAL 0x80 /* kernel spills */ |
46 | #define TT_SPILL_1_NORMAL 0x84 /* userspace spills */ |
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47 | #define TT_SPILL_2_NORMAL 0x88 /* spills to userspace window buffer */ |
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48 | #define TT_SPILL_0_OTHER 0xa0 /* spills to userspace window buffer */ |
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49 | #define TT_FILL_0_NORMAL 0xc0 /* kernel fills */ |
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50 | #define TT_FILL_1_NORMAL 0xc4 /* userspace fills */ |
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630 | jermar | 51 | |
52 | #define REGWIN_HANDLER_SIZE 128 |
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53 | |||
54 | #define CLEAN_WINDOW_HANDLER_SIZE REGWIN_HANDLER_SIZE |
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55 | #define SPILL_HANDLER_SIZE REGWIN_HANDLER_SIZE |
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56 | #define FILL_HANDLER_SIZE REGWIN_HANDLER_SIZE |
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57 | |||
1852 | jermar | 58 | /* Window Save Area offsets. */ |
630 | jermar | 59 | #define L0_OFFSET 0 |
60 | #define L1_OFFSET 8 |
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61 | #define L2_OFFSET 16 |
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62 | #define L3_OFFSET 24 |
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63 | #define L4_OFFSET 32 |
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64 | #define L5_OFFSET 40 |
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65 | #define L6_OFFSET 48 |
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66 | #define L7_OFFSET 56 |
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67 | #define I0_OFFSET 64 |
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68 | #define I1_OFFSET 72 |
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69 | #define I2_OFFSET 80 |
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70 | #define I3_OFFSET 88 |
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71 | #define I4_OFFSET 96 |
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72 | #define I5_OFFSET 104 |
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73 | #define I6_OFFSET 112 |
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74 | #define I7_OFFSET 120 |
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75 | |||
3535 | svoboda | 76 | /* Uspace Window Buffer constants. */ |
77 | #define UWB_SIZE ((NWINDOWS - 1) * STACK_WINDOW_SAVE_AREA_SIZE) |
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78 | #define UWB_ALIGNMENT 1024 |
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79 | #define UWB_ASIZE ALIGN_UP(UWB_SIZE, UWB_ALIGNMENT) |
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80 | |||
632 | jermar | 81 | #ifdef __ASM__ |
1852 | jermar | 82 | |
83 | /* |
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84 | * Macro used by the nucleus and the primary context 0 during normal and other spills. |
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85 | */ |
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86 | .macro SPILL_NORMAL_HANDLER_KERNEL |
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630 | jermar | 87 | stx %l0, [%sp + STACK_BIAS + L0_OFFSET] |
88 | stx %l1, [%sp + STACK_BIAS + L1_OFFSET] |
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89 | stx %l2, [%sp + STACK_BIAS + L2_OFFSET] |
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90 | stx %l3, [%sp + STACK_BIAS + L3_OFFSET] |
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91 | stx %l4, [%sp + STACK_BIAS + L4_OFFSET] |
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92 | stx %l5, [%sp + STACK_BIAS + L5_OFFSET] |
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93 | stx %l6, [%sp + STACK_BIAS + L6_OFFSET] |
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94 | stx %l7, [%sp + STACK_BIAS + L7_OFFSET] |
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95 | stx %i0, [%sp + STACK_BIAS + I0_OFFSET] |
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96 | stx %i1, [%sp + STACK_BIAS + I1_OFFSET] |
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97 | stx %i2, [%sp + STACK_BIAS + I2_OFFSET] |
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98 | stx %i3, [%sp + STACK_BIAS + I3_OFFSET] |
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99 | stx %i4, [%sp + STACK_BIAS + I4_OFFSET] |
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100 | stx %i5, [%sp + STACK_BIAS + I5_OFFSET] |
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101 | stx %i6, [%sp + STACK_BIAS + I6_OFFSET] |
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102 | stx %i7, [%sp + STACK_BIAS + I7_OFFSET] |
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103 | saved |
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104 | retry |
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105 | .endm |
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106 | |||
1852 | jermar | 107 | /* |
108 | * Macro used by the userspace during normal spills. |
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109 | */ |
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110 | .macro SPILL_NORMAL_HANDLER_USERSPACE |
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1856 | jermar | 111 | wr %g0, ASI_AIUP, %asi |
1852 | jermar | 112 | stxa %l0, [%sp + STACK_BIAS + L0_OFFSET] %asi |
113 | stxa %l1, [%sp + STACK_BIAS + L1_OFFSET] %asi |
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114 | stxa %l2, [%sp + STACK_BIAS + L2_OFFSET] %asi |
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115 | stxa %l3, [%sp + STACK_BIAS + L3_OFFSET] %asi |
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116 | stxa %l4, [%sp + STACK_BIAS + L4_OFFSET] %asi |
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117 | stxa %l5, [%sp + STACK_BIAS + L5_OFFSET] %asi |
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118 | stxa %l6, [%sp + STACK_BIAS + L6_OFFSET] %asi |
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119 | stxa %l7, [%sp + STACK_BIAS + L7_OFFSET] %asi |
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120 | stxa %i0, [%sp + STACK_BIAS + I0_OFFSET] %asi |
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121 | stxa %i1, [%sp + STACK_BIAS + I1_OFFSET] %asi |
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122 | stxa %i2, [%sp + STACK_BIAS + I2_OFFSET] %asi |
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123 | stxa %i3, [%sp + STACK_BIAS + I3_OFFSET] %asi |
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124 | stxa %i4, [%sp + STACK_BIAS + I4_OFFSET] %asi |
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125 | stxa %i5, [%sp + STACK_BIAS + I5_OFFSET] %asi |
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126 | stxa %i6, [%sp + STACK_BIAS + I6_OFFSET] %asi |
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127 | stxa %i7, [%sp + STACK_BIAS + I7_OFFSET] %asi |
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128 | saved |
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129 | retry |
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130 | .endm |
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131 | |||
132 | /* |
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1856 | jermar | 133 | * Macro used to spill userspace window to userspace window buffer. |
134 | * It can be either triggered from preemptible_handler doing SAVE |
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135 | * at (TL=1) or from normal kernel code doing SAVE when OTHERWIN>0 |
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136 | * at (TL=0). |
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1852 | jermar | 137 | */ |
1856 | jermar | 138 | .macro SPILL_TO_USPACE_WINDOW_BUFFER |
139 | stx %l0, [%g7 + L0_OFFSET] |
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140 | stx %l1, [%g7 + L1_OFFSET] |
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141 | stx %l2, [%g7 + L2_OFFSET] |
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142 | stx %l3, [%g7 + L3_OFFSET] |
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143 | stx %l4, [%g7 + L4_OFFSET] |
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144 | stx %l5, [%g7 + L5_OFFSET] |
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145 | stx %l6, [%g7 + L6_OFFSET] |
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146 | stx %l7, [%g7 + L7_OFFSET] |
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147 | stx %i0, [%g7 + I0_OFFSET] |
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148 | stx %i1, [%g7 + I1_OFFSET] |
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149 | stx %i2, [%g7 + I2_OFFSET] |
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150 | stx %i3, [%g7 + I3_OFFSET] |
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151 | stx %i4, [%g7 + I4_OFFSET] |
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152 | stx %i5, [%g7 + I5_OFFSET] |
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153 | stx %i6, [%g7 + I6_OFFSET] |
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154 | stx %i7, [%g7 + I7_OFFSET] |
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155 | add %g7, STACK_WINDOW_SAVE_AREA_SIZE, %g7 |
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1852 | jermar | 156 | saved |
157 | retry |
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158 | .endm |
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159 | |||
160 | |||
161 | /* |
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162 | * Macro used by the nucleus and the primary context 0 during normal fills. |
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163 | */ |
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164 | .macro FILL_NORMAL_HANDLER_KERNEL |
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630 | jermar | 165 | ldx [%sp + STACK_BIAS + L0_OFFSET], %l0 |
166 | ldx [%sp + STACK_BIAS + L1_OFFSET], %l1 |
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167 | ldx [%sp + STACK_BIAS + L2_OFFSET], %l2 |
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168 | ldx [%sp + STACK_BIAS + L3_OFFSET], %l3 |
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169 | ldx [%sp + STACK_BIAS + L4_OFFSET], %l4 |
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170 | ldx [%sp + STACK_BIAS + L5_OFFSET], %l5 |
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171 | ldx [%sp + STACK_BIAS + L6_OFFSET], %l6 |
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172 | ldx [%sp + STACK_BIAS + L7_OFFSET], %l7 |
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173 | ldx [%sp + STACK_BIAS + I0_OFFSET], %i0 |
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174 | ldx [%sp + STACK_BIAS + I1_OFFSET], %i1 |
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175 | ldx [%sp + STACK_BIAS + I2_OFFSET], %i2 |
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176 | ldx [%sp + STACK_BIAS + I3_OFFSET], %i3 |
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177 | ldx [%sp + STACK_BIAS + I4_OFFSET], %i4 |
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178 | ldx [%sp + STACK_BIAS + I5_OFFSET], %i5 |
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179 | ldx [%sp + STACK_BIAS + I6_OFFSET], %i6 |
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180 | ldx [%sp + STACK_BIAS + I7_OFFSET], %i7 |
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181 | restored |
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182 | retry |
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183 | .endm |
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184 | |||
1852 | jermar | 185 | /* |
186 | * Macro used by the userspace during normal fills. |
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187 | */ |
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188 | .macro FILL_NORMAL_HANDLER_USERSPACE |
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1856 | jermar | 189 | wr %g0, ASI_AIUP, %asi |
1852 | jermar | 190 | ldxa [%sp + STACK_BIAS + L0_OFFSET] %asi, %l0 |
191 | ldxa [%sp + STACK_BIAS + L1_OFFSET] %asi, %l1 |
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192 | ldxa [%sp + STACK_BIAS + L2_OFFSET] %asi, %l2 |
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193 | ldxa [%sp + STACK_BIAS + L3_OFFSET] %asi, %l3 |
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194 | ldxa [%sp + STACK_BIAS + L4_OFFSET] %asi, %l4 |
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195 | ldxa [%sp + STACK_BIAS + L5_OFFSET] %asi, %l5 |
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196 | ldxa [%sp + STACK_BIAS + L6_OFFSET] %asi, %l6 |
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197 | ldxa [%sp + STACK_BIAS + L7_OFFSET] %asi, %l7 |
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198 | ldxa [%sp + STACK_BIAS + I0_OFFSET] %asi, %i0 |
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199 | ldxa [%sp + STACK_BIAS + I1_OFFSET] %asi, %i1 |
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200 | ldxa [%sp + STACK_BIAS + I2_OFFSET] %asi, %i2 |
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201 | ldxa [%sp + STACK_BIAS + I3_OFFSET] %asi, %i3 |
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202 | ldxa [%sp + STACK_BIAS + I4_OFFSET] %asi, %i4 |
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203 | ldxa [%sp + STACK_BIAS + I5_OFFSET] %asi, %i5 |
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204 | ldxa [%sp + STACK_BIAS + I6_OFFSET] %asi, %i6 |
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205 | ldxa [%sp + STACK_BIAS + I7_OFFSET] %asi, %i7 |
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206 | restored |
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207 | retry |
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208 | .endm |
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209 | |||
630 | jermar | 210 | .macro CLEAN_WINDOW_HANDLER |
211 | rdpr %cleanwin, %l0 |
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212 | add %l0, 1, %l0 |
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213 | wrpr %l0, 0, %cleanwin |
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214 | mov %r0, %l0 |
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215 | mov %r0, %l1 |
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216 | mov %r0, %l2 |
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217 | mov %r0, %l3 |
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218 | mov %r0, %l4 |
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219 | mov %r0, %l5 |
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220 | mov %r0, %l6 |
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221 | mov %r0, %l7 |
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666 | jermar | 222 | mov %r0, %o0 |
223 | mov %r0, %o1 |
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224 | mov %r0, %o2 |
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225 | mov %r0, %o3 |
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226 | mov %r0, %o4 |
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227 | mov %r0, %o5 |
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228 | mov %r0, %o6 |
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229 | mov %r0, %o7 |
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630 | jermar | 230 | retry |
231 | .endm |
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632 | jermar | 232 | #endif /* __ASM__ */ |
630 | jermar | 233 | |
234 | #endif |
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1702 | cejka | 235 | |
1703 | jermar | 236 | /** @} |
1702 | cejka | 237 | */ |