1 | #!/usr/bin/env python |
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2 | """This file contains a mapping generator for the tsar_generic_iob platform""" |
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3 | |
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4 | from math import log |
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5 | from mapping import Mapping |
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6 | |
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7 | ################################################################################ |
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8 | # file : arch.py (for the tsar_generic_iob architecture) |
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9 | # date : may 2014 |
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10 | # author : Alain Greiner |
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11 | # |
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12 | # modified by: |
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13 | # Cesar Fuguet |
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14 | # - Adding distributed ROMs used by the distributed reconfiguration |
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15 | # procedure |
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16 | # |
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17 | ################################################################################ |
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18 | # This platform includes 6 external peripherals, accessible through two |
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19 | # IO_Bridge components located in cluster [0,0] and cluster [x_size-1, |
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20 | # y_size-1]. Available peripherals are: TTY, BDV, FBF, ROM, NIC, CMA. |
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21 | # |
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22 | # The "constructor" parameters are: |
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23 | # - x_size : number of clusters in a row |
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24 | # - y_size : number of clusters in a column |
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25 | # - nb_procs : number of processors per cluster |
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26 | # - fbf_width : frame_buffer width = frame_buffer heigth |
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27 | # |
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28 | # The "hidden" parameters (defined below) are: |
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29 | # - NB_TTYS : number of TTY channels |
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30 | # - NB_NICS : number of NIC channels |
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31 | # - X_IO : cluster_io x coordinate |
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32 | # - Y_IO : cluster_io y coordinate |
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33 | # - X_WIDTH : number of bits for x coordinate |
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34 | # - Y_WIDTH : number of bits for y coordinate |
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35 | # - p_width : number of bits for processor local id field |
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36 | # - PADDR_WIDTH : number of bits for physical address |
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37 | # - IRQ_PER_PROC : number of input IRQs per processor |
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38 | # - USE_RAMDISK : use a ramdisk when True |
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39 | # - PERI_INCREMENT : virtual address increment for replicated peripherals |
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40 | # - PTAB_INCREMENT : virtual address increment for replicated page tables |
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41 | # - SCHED_INCREMENT: virtual address increment for replicated schedulers |
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42 | ################################################################################ |
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43 | |
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44 | # define architecture constants |
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45 | PADDR_WIDTH = 40 |
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46 | NB_TTYS = 1 |
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47 | NB_NICS = 2 |
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48 | FBF_WIDTH = 128 |
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49 | X_WIDTH = 4 |
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50 | Y_WIDTH = 4 |
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51 | X_IO = 0 |
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52 | Y_IO = 0 |
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53 | IRQ_PER_PROC = 4 |
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54 | USE_RAMDISK = False |
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55 | |
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56 | # virtual address increment for distributed memory segments in the GietVM OS |
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57 | PERI_INCREMENT = 0x10000 |
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58 | PTAB_INCREMENT = 0x200000 |
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59 | SCHED_INCREMENT = 0x10000 |
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60 | |
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61 | def pmsb(x, y): |
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62 | """This function returns the physical most signicant bits for the |
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63 | cluster(x,y)""" |
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64 | |
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65 | return (x << X_WIDTH) | y |
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66 | |
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67 | def arch(x_size=2, |
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68 | y_size=2, |
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69 | nb_procs=4, |
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70 | fbf_width=FBF_WIDTH): |
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71 | """This function describes the tsar_generic_iob platform and defines its |
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72 | parameters""" |
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73 | |
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74 | p_width = log(nb_procs, 2) |
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75 | |
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76 | # parameters checking |
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77 | assert nb_procs <= 4 |
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78 | |
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79 | assert ((x_size == 1) or (x_size == 2) or (x_size == 4) or (x_size == 8) or |
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80 | (x_size == 16)) |
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81 | |
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82 | assert ((y_size == 1) or (y_size == 2) or (y_size == 4) or (y_size == 8) or |
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83 | (y_size == 16)) |
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84 | |
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85 | assert NB_TTYS == 1 |
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86 | |
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87 | assert (((X_IO == 0) and (Y_IO == 0)) or |
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88 | ((X_IO == x_size-1) and (Y_IO == y_size-1))) |
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89 | |
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90 | platform_name = 'reconf-tsar_iob_%d_%d_%d' % (x_size, y_size, nb_procs) |
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91 | |
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92 | # define physical segments |
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93 | ram_base = 0x0000000000 |
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94 | if 1: |
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95 | ram_size = 0x4000000 # 64 Mbytes |
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96 | else: |
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97 | ram_size = 0x0040000 # 256 Kbytes |
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98 | |
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99 | xcu_base = 0x00B0000000 |
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100 | xcu_size = 0x1000 # 4 Kbytes |
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101 | |
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102 | dma_base = 0x00B1000000 |
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103 | dma_size = 0x1000 * nb_procs # 4 Kbytes * nb_procs |
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104 | |
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105 | mmc_base = 0x00B2000000 |
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106 | mmc_size = 0x1000 # 4 Kbytes |
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107 | |
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108 | rom_base = 0x00BFC00000 |
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109 | rom_size = 0x8000 # 32 Kbytes |
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110 | |
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111 | offset_io = pmsb(X_IO, Y_IO) << (PADDR_WIDTH - X_WIDTH - Y_WIDTH) |
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112 | |
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113 | bdv_base = 0x00B3000000 + offset_io |
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114 | bdv_size = 0x1000 # 4 kbytes |
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115 | |
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116 | tty_base = 0x00B4000000 + offset_io |
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117 | tty_size = 0x1000 # 4 Kbytes |
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118 | |
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119 | nic_base = 0x00B5000000 + offset_io |
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120 | nic_size = 0x80000 # 512 kbytes |
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121 | |
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122 | cma_base = 0x00B6000000 + offset_io |
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123 | cma_size = 0x1000 * 2 * NB_NICS # 4 kbytes * 2 * NB_NICS |
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124 | |
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125 | fbf_base = 0x00B7000000 + offset_io |
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126 | fbf_size = fbf_width * fbf_width # fbf_width * fbf_width bytes |
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127 | |
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128 | pic_base = 0x00B8000000 + offset_io |
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129 | pic_size = 0x1000 # 4 Kbytes |
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130 | |
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131 | sim_base = 0x00B9000000 + offset_io |
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132 | sim_size = 0x1000 # 4 kbytes |
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133 | |
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134 | iob_base = 0x00BE000000 + offset_io |
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135 | iob_size = 0x1000 # 4 kbytes |
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136 | |
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137 | # create mapping |
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138 | mapping = Mapping(name=platform_name, |
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139 | x_size=x_size, |
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140 | y_size=y_size, |
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141 | nprocs=nb_procs, |
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142 | x_width=X_WIDTH, |
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143 | y_width=Y_WIDTH, |
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144 | p_width=p_width, |
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145 | paddr_width=PADDR_WIDTH, |
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146 | coherence=True, |
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147 | irq_per_proc=IRQ_PER_PROC, |
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148 | use_ramdisk=USE_RAMDISK, |
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149 | x_io=X_IO, |
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150 | y_io=Y_IO, |
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151 | peri_increment=PERI_INCREMENT, |
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152 | ram_base=ram_base, |
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153 | ram_size=ram_size) |
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154 | |
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155 | # external peripherals (accessible in cluster[0,0] only for this mapping) |
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156 | mapping.addPeriph('IOB', base=iob_base, size=iob_size, |
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157 | ptype='IOB') |
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158 | |
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159 | mapping.addPeriph('BDV', base=bdv_base, size=bdv_size, |
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160 | ptype='IOC', subtype='BDV') |
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161 | |
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162 | mapping.addPeriph('TTY', base=tty_base, size=tty_size, |
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163 | ptype='TTY', channels=NB_TTYS) |
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164 | |
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165 | mapping.addPeriph('NIC', base=nic_base, size=nic_size, |
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166 | ptype='NIC', channels=NB_NICS) |
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167 | |
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168 | mapping.addPeriph('CMA', base=cma_base, size=cma_size, |
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169 | ptype='CMA', channels=2*NB_NICS) |
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170 | |
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171 | mapping.addPeriph('FBF', base=fbf_base, size=fbf_size, |
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172 | ptype='FBF', arg=fbf_width) |
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173 | |
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174 | mapping.addPeriph('SIM', base=sim_base, size=sim_size, |
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175 | ptype='SIM') |
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176 | |
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177 | pic = mapping.addPeriph('PIC', base=pic_base, size=pic_size, |
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178 | ptype='PIC', channels=32) |
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179 | |
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180 | mapping.addIrq(pic, index=0, isrtype='ISR_NIC_RX', channel=0) |
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181 | mapping.addIrq(pic, index=1, isrtype='ISR_NIC_RX', channel=1) |
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182 | mapping.addIrq(pic, index=2, isrtype='ISR_NIC_TX', channel=0) |
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183 | mapping.addIrq(pic, index=3, isrtype='ISR_NIC_TX', channel=1) |
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184 | mapping.addIrq(pic, index=4, isrtype='ISR_CMA', channel=0) |
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185 | mapping.addIrq(pic, index=5, isrtype='ISR_CMA', channel=1) |
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186 | mapping.addIrq(pic, index=6, isrtype='ISR_CMA', channel=2) |
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187 | mapping.addIrq(pic, index=7, isrtype='ISR_CMA', channel=3) |
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188 | mapping.addIrq(pic, index=8, isrtype='ISR_BDV', channel=0) |
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189 | mapping.addIrq(pic, index=9, isrtype='ISR_TTY_RX', channel=0) |
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190 | |
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191 | # hardware components replicated in all clusters |
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192 | for x in xrange(x_size): |
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193 | for y in xrange(y_size): |
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194 | offset = pmsb(x, y) << (PADDR_WIDTH - X_WIDTH - Y_WIDTH) |
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195 | |
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196 | mapping.addRam('RAM', base=ram_base + offset, size=ram_size) |
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197 | |
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198 | mapping.addPeriph('MMC', base=mmc_base + offset, size=mmc_size, |
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199 | ptype='MMC') |
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200 | |
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201 | mapping.addPeriph('ROM', base=rom_base + offset, size=rom_size, |
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202 | ptype='ROM') |
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203 | |
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204 | dma = mapping.addPeriph('DMA', base=dma_base + offset, |
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205 | size=dma_size, ptype='DMA', |
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206 | channels=nb_procs) |
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207 | |
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208 | xcu = mapping.addPeriph('XCU', base=xcu_base + offset, |
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209 | size=xcu_size, ptype='XCU', |
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210 | channels=nb_procs * IRQ_PER_PROC, |
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211 | arg=16) |
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212 | |
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213 | # MMC IRQ replicated in all clusters |
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214 | mapping.addIrq(xcu, index=0, isrtype='ISR_MMC') |
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215 | |
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216 | # DMA IRQ replicated in all clusters |
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217 | for i in xrange(dma.channels): |
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218 | mapping.addIrq(xcu, index=1+i, isrtype='ISR_DMA', |
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219 | channel=i) |
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220 | |
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221 | # processors |
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222 | for p in xrange(nb_procs): |
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223 | mapping.addProc(x, y, p) |
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224 | |
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225 | ############################################################################ |
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226 | # GIET_VM specifics |
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227 | |
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228 | # define bootloader vsegs base addresses |
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229 | bmapping_vbase = 0x00001000 # ident |
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230 | bmapping_size = 0x0007F000 # 508 Kbytes |
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231 | |
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232 | bcode_vbase = 0x00080000 # ident |
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233 | bcode_size = 0x00040000 # 256 Kbytes |
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234 | |
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235 | bdata_vbase = 0x000C0000 # ident |
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236 | bdata_size = 0x00080000 # 512 Kbytes |
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237 | |
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238 | bstack_vbase = 0x00140000 # ident |
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239 | bstack_size = 0x00050000 # 320 Kbytes |
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240 | |
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241 | # define kernel vsegs base addresses and sizes |
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242 | kcode_vbase = 0x80000000 |
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243 | kcode_size = 0x00080000 # 512 Kbytes |
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244 | |
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245 | kinit_vbase = 0x80800000 |
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246 | kinit_size = 0x00080000 # 512 Kbytes |
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247 | |
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248 | kdata_vbase = 0x80100000 |
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249 | kdata_size = 0x00080000 # 512 Kbytes |
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250 | |
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251 | kuncdata_vbase = 0x80180000 |
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252 | kuncdata_size = 0x00001000 # 4 Kbytes |
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253 | |
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254 | kptab_vbase = 0xC0000000 |
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255 | kptab_size = 0x00200000 # 512 Kbytes |
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256 | |
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257 | ksched_vbase = 0xF0000000 # distributed in all clusters |
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258 | ksched_size = 0x2000 * nb_procs # 8 kbytes per processor |
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259 | |
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260 | # global vsegs for boot_loader / identity mapping |
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261 | mapping.addGlobal('seg_boot_mapping', bmapping_vbase, bmapping_size, |
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262 | 'CXW_', vtype='BLOB', x=0, y=0, pseg='RAM', |
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263 | identity=True, local=False, big=True) |
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264 | |
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265 | mapping.addGlobal('seg_boot_code', bcode_vbase, bcode_size, |
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266 | 'CXW_', vtype='BUFFER', x=0, y=0, pseg='RAM', |
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267 | identity=True, local=False, big=True) |
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268 | |
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269 | mapping.addGlobal('seg_boot_data', bdata_vbase, bdata_size, |
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270 | 'CXW_', vtype='BUFFER', x=0, y=0, pseg='RAM', |
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271 | identity=True, local=False, big=True) |
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272 | |
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273 | mapping.addGlobal('seg_boot_stack', bstack_vbase, bstack_size, |
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274 | 'CXW_', vtype='BUFFER', x=0, y=0, pseg='RAM', |
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275 | identity=True, local=False, big=True) |
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276 | |
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277 | # the code global vsegs for kernel can be replicated in all clusters |
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278 | # if the page tables are distributed in all clusters. |
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279 | for x in xrange(x_size): |
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280 | for y in xrange(y_size): |
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281 | mapping.addGlobal('seg_kernel_code', kcode_vbase, kcode_size, |
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282 | 'CXW_', vtype='ELF', x=x, y=y, pseg='RAM', |
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283 | binpath='build/kernel/kernel.elf', |
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284 | local=True, big=True) |
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285 | |
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286 | mapping.addGlobal('seg_kernel_init', kinit_vbase, kinit_size, |
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287 | 'CXW_', vtype='ELF', x=x, y=y, pseg='RAM', |
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288 | binpath='build/kernel/kernel.elf', |
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289 | local=True, big=True) |
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290 | |
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291 | offset = pmsb(x, y) * PTAB_INCREMENT |
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292 | mapping.addGlobal('seg_kernel_ptab_%d_%d' % (x, y), |
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293 | kptab_vbase + offset, kptab_size, 'C_W_', |
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294 | vtype='PTAB', x=x, y=y, pseg='RAM', |
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295 | local=False, big=True) |
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296 | |
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297 | |
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298 | offset = pmsb(x, y) * SCHED_INCREMENT |
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299 | mapping.addGlobal('seg_kernel_sched_%d_%d' % (x, y), |
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300 | ksched_vbase + offset, ksched_size, 'C_W_', |
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301 | vtype='SCHED', x=x, y=y, pseg='RAM', |
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302 | local=False, big=False) |
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303 | |
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304 | # shared global vsegs for kernel |
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305 | mapping.addGlobal('seg_kernel_data', kdata_vbase, kdata_size, |
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306 | 'CXW_', vtype='ELF', x=0, y=0, pseg='RAM', |
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307 | binpath='build/kernel/kernel.elf', local=False, |
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308 | big=True) |
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309 | |
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310 | mapping.addGlobal('seg_kernel_uncdata', kuncdata_vbase, kuncdata_size, |
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311 | 'CXW_', vtype='ELF', x=0, y=0, pseg='RAM', |
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312 | binpath='build/kernel/kernel.elf', local=False, |
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313 | big=True) |
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314 | |
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315 | # global vsegs for external peripherals / identity mapping |
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316 | mapping.addGlobal('seg_iob', iob_base, iob_size, '__W_', vtype='PERI', |
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317 | x=X_IO, y=Y_IO, pseg='IOB', local=False, big=False) |
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318 | |
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319 | mapping.addGlobal('seg_bdv', bdv_base, bdv_size, '__W_', vtype='PERI', |
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320 | x=X_IO, y=Y_IO, pseg='BDV', local=False, big=False) |
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321 | |
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322 | mapping.addGlobal('seg_tty', tty_base, tty_size, '__W_', vtype='PERI', |
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323 | x=X_IO, y=Y_IO, pseg='TTY', local=False, big=False) |
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324 | |
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325 | mapping.addGlobal('seg_nic', nic_base, nic_size, '__W_', vtype='PERI', |
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326 | x=X_IO, y=Y_IO, pseg='NIC', local=False, big=False) |
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327 | |
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328 | mapping.addGlobal('seg_cma', cma_base, cma_size, '__W_', vtype='PERI', |
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329 | x=X_IO, y=Y_IO, pseg='CMA', local=False, big=False) |
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330 | |
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331 | mapping.addGlobal('seg_fbf', fbf_base, fbf_size, '__W_', vtype='PERI', |
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332 | x=X_IO, y=Y_IO, pseg='FBF', local=False, big=True) |
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333 | |
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334 | mapping.addGlobal('seg_pic', pic_base, pic_size, '__W_', vtype='PERI', |
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335 | x=X_IO, y=Y_IO, pseg='PIC', local=False, big=False) |
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336 | |
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337 | mapping.addGlobal('seg_sim', sim_base, sim_size, '__W_', vtype='PERI', |
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338 | x=X_IO, y=Y_IO, pseg='SIM', local=False, big=False) |
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339 | |
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340 | # global vsegs for internal peripherals |
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341 | for x in xrange(x_size): |
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342 | for y in xrange(y_size): |
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343 | offset = pmsb(x, y) * PERI_INCREMENT |
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344 | |
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345 | mapping.addGlobal('seg_rom_%d_%d' % (x, y), rom_base + offset, |
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346 | rom_size, 'CX__', vtype='PERI', x=x, y=y, |
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347 | pseg='ROM', local=False, big=False) |
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348 | |
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349 | mapping.addGlobal('seg_xcu_%d_%d' % (x, y), xcu_base + offset, |
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350 | xcu_size, '__W_', vtype='PERI', x=x, y=y, |
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351 | pseg='XCU', local=False, big=False) |
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352 | |
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353 | mapping.addGlobal('seg_dma_%d_%d' % (x, y), dma_base + offset, |
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354 | dma_size, '__W_', vtype='PERI', x=x, y=y, |
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355 | pseg='DMA', local=False, big=False) |
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356 | |
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357 | mapping.addGlobal('seg_mmc_%d_%d' % (x, y), mmc_base + offset, |
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358 | mmc_size, '__W_', vtype='PERI', x=x, y=y, |
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359 | pseg='MMC', local=False, big=False) |
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360 | |
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361 | return mapping |
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362 | |
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363 | def main(x, y, p, hard_path, xml_path): |
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364 | """main function: it generates the map.xml and the hard_config.h file based |
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365 | on the Mapping object returned by arch()""" |
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366 | mapping = arch(x_size=x, |
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367 | y_size=y, |
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368 | nb_procs=p) |
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369 | |
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370 | with open(xml_path, "w") as map_xml: |
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371 | map_xml.write(mapping.xml()) |
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372 | with open(hard_path, "w") as hard_config: |
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373 | hard_config.write(mapping.hard_config()) |
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374 | |
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375 | ################################# platform test ################################ |
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376 | import sys |
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377 | if __name__ == '__main__': |
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378 | main(x=int(sys.argv[1]), |
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379 | y=int(sys.argv[2]), |
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380 | p=int(sys.argv[3]), |
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381 | hard_path="hard_config.test.h", |
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382 | xml_path="map.test.xml") |
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383 | |
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384 | # Local Variables: |
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385 | # tab-width: 4; |
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386 | # c-basic-offset: 4; |
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387 | # c-file-offsets:((innamespace . 0)(inline-open . 0)); |
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388 | # indent-tabs-mode: nil; |
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389 | # End: |
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390 | # |
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391 | # vim: filetype=python:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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392 | |
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