[1057] | 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | from arch_classes import * |
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| 4 | |
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| 5 | ####################################################################################### |
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| 6 | # file : arch_info.py |
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| 7 | # date : june 2018 |
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| 8 | # author : Alain Greiner |
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| 9 | # |
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| 10 | # This file describes the <tsar_generic_leti> architecture for ALMOS-MKH. |
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| 11 | ####################################################################################### |
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| 12 | # This file defines a specific instance of the "tsar_generic_leti" architecture. |
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| 13 | # It is used to generate the "hard_config.h" file, |
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| 14 | # used to configure the hardware architecture, and the "arch_info.bin" file, used by |
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| 15 | # the ALMOS-MK bootloader. |
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| 16 | # |
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| 17 | # The constructor prototype format is imposed by the genarch.py application, |
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| 18 | # and should not be modified. |
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[1058] | 19 | # The default argument values are for the TSARLET 16 cores prototype. |
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[1057] | 20 | # |
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[1058] | 21 | # The "tsar_generic_leti" architecture includes 5 external peripherals located |
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| 22 | # in cluster[x_size-1][y_size-1]: TTY, IOC, FBF, NIC, PIC. |
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| 23 | # The upper row (y = y_size-1) does not contain processors or memory. |
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| 24 | # The "tsar_generic_leti" does not use the IOB component. |
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[1057] | 25 | # It does not use an external ROM, as the preloader code is (pre)loaded |
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| 26 | # at address 0x0, in the physical memory of cluster[0][0]. |
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| 27 | # |
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[1058] | 28 | # Two backup peripherals one (one TXT_TTY and one IOC_BDV) are connected |
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| 29 | # on local interconnect in cluster 0. |
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[1057] | 30 | # |
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| 31 | # The "constructor" parameters (defined in Makefile) are: |
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| 32 | # - x_size : number of clusters in a row (from 1 to 16) |
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| 33 | # - y_size : number of clusters in a column (from 1 to 16) |
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| 34 | # - nb_cores : number of cores per cluster (from 1 to 4) |
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| 35 | # - nb_ttys : number of TTY channels (from 1 to 8) |
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| 36 | # - nb_nics : number of NIC channels (from 1 to 2) |
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| 37 | # - fbf_width : frame_buffer width = frame_buffer heigth |
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| 38 | # - ioc_type : can be 'IOC_BDV','IOC_HBA','IOC_SDC','IOC_RDK' |
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| 39 | # |
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| 40 | # The others hardware parameters are defined below : |
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| 41 | # - x_width : number of bits for x coordinate |
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| 42 | # - y_width : number of bits for y coordinate |
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| 43 | # - p_width : number of bits for local core index |
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| 44 | # - paddr_width : number of bits for physical address |
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| 45 | # - irq_per_proc : number of input IRQs per processor |
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| 46 | # - io_cxy : IO_cluster identifier |
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| 47 | # - boot_cxy : boot_cluster identifier |
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| 48 | # - cache_line : number of bytes in cache line (64 for tsar) |
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| 49 | # - devices_max : max number of internal devices per cluster |
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| 50 | ##################################################################################### |
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| 51 | |
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| 52 | |
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| 53 | ######################## |
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| 54 | def arch( x_size = 2, |
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| 55 | y_size = 3, |
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| 56 | nb_cores = 4, |
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| 57 | nb_ttys = 3, |
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| 58 | nb__nics = 1, |
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| 59 | fbf_width = 128, |
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| 60 | ioc_type = 'IOC_BDV'): |
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| 61 | |
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| 62 | ### architecture constants |
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| 63 | |
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| 64 | p_width = 2 |
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| 65 | x_width = 4 |
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| 66 | y_width = 4 |
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| 67 | paddr_width = 40 |
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| 68 | irq_per_proc = 4 # NetBSD constraint |
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| 69 | io_cxy = ((x_size-1)<<y_width) + (y_size-1) # upper right cluster |
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| 70 | boot_cxy = 0 |
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| 71 | cache_line = 64 |
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| 72 | devices_max = 16 |
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| 73 | reset_address = 0x00000000 # LETI constraint |
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| 74 | |
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| 75 | ### constructors parameters checking |
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| 76 | |
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| 77 | assert( nb_cores <= 4 ) |
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| 78 | |
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| 79 | assert( x_size <= (1 << x_width) ) |
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| 80 | |
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| 81 | assert( (y_size > 1) and (y_size <= (1 << y_width)) ) |
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| 82 | |
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| 83 | assert( (nb_ttys >= 1) and (nb_ttys <= 8) ) |
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| 84 | |
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| 85 | assert( (nb_nics >= 1) and (nb_nics <= 2) ) |
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| 86 | |
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| 87 | assert( ioc_type in ['IOC_BDV','IOC_HBA','IOC_SDC','IOC_SPI','IOC_RDK'] ) |
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| 88 | |
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| 89 | assert( ((boot_cxy >> y_width) < x_size) and ((boot_cxy & ((1<<y_width)-1)) < (y_size - 1) ) ) |
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| 90 | |
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| 91 | ### define type and name |
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| 92 | |
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| 93 | platform_name = 'tsar_leti_%d_%d_%d' % ( x_size, y_size, nb_cores ) |
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| 94 | |
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| 95 | ### define physical segments replicated in all non-IO clusters |
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| 96 | ### the base address is extended by the cxy (8 bits) |
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| 97 | |
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| 98 | ram_base = 0x0000000000 |
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| 99 | ram_size = 0x4000000 # 64 Mbytes |
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| 100 | |
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| 101 | xcu_base = 0x00F0000000 |
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| 102 | xcu_size = 0x1000 # 4 Kbytes |
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| 103 | |
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| 104 | mmc_base = 0x00F1000000 |
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| 105 | mmc_size = 0x1000 # 4 Kbytes |
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| 106 | |
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| 107 | ### define physical segments for external peripherals in IO cluster |
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| 108 | ## These segments are extended byb the IO_cluster cxy (8bits) |
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| 109 | |
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| 110 | ioc_base = 0x00F2000000 |
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| 111 | ioc_size = 0x1000 # 4kbytes |
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| 112 | |
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| 113 | fbf_base = 0x00F3000000 |
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| 114 | fbf_size = fbf_width * fbf_width # fbf_width * fbf_width bytes |
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| 115 | |
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| 116 | tty_base = 0x00F4000000 |
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| 117 | tty_size = 0x8000 # 4 Kbytes * 8 channels |
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| 118 | |
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| 119 | nic_base = 0x00F7000000 |
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| 120 | nic_size = 0x4000 # 4 Kbytes * 4 channels |
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| 121 | |
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| 122 | pic_base = 0x00F9000000 |
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| 123 | pic_size = 0x1000 # 4 Kbytes |
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| 124 | |
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| 125 | ############################# |
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| 126 | ### call header constructor |
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| 127 | ############################# |
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| 128 | |
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| 129 | archi = Archinfo( name = platform_name, |
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| 130 | x_size = x_size, |
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| 131 | y_size = y_size, |
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| 132 | cores_max = nb_cores, |
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| 133 | devices_max = devices_max, |
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| 134 | paddr_width = paddr_width, |
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| 135 | x_width = x_width, |
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| 136 | y_width = y_width, |
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| 137 | irqs_per_core = irqs_per_core, |
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| 138 | io_cxy = io_cxy, |
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| 139 | boot_cxy = boot_cxy, |
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| 140 | cache_line = cache_line, |
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| 141 | reset_address = reset_address, |
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| 142 | p_width = p_width ) |
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| 143 | |
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| 144 | ########################### |
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| 145 | ### Hardware Description |
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| 146 | ########################### |
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| 147 | |
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| 148 | for x in xrange( x_size ): |
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| 149 | for y in xrange( y_size ): |
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| 150 | cluster_xy = (x << y_width) + y; |
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| 151 | offset = cluster_xy << (paddr_width - x_width - y_width) |
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| 152 | |
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| 153 | ### components replicated in all clusters but the upper row |
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| 154 | if ( y < (y_size - 1) ): |
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| 155 | |
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| 156 | ram = archi.addDevice( ptype = 'RAM_SCL', |
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| 157 | base = ram_base + offset, |
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| 158 | size = ram_size ) |
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| 159 | |
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| 160 | mmc = archi.addDevice( ptype = 'MMC_TSR', |
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| 161 | base = mmc_base + offset, |
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| 162 | size = mmc_size ) |
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| 163 | |
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| 164 | xcu = archi.addDevice( ptype = 'ICU_XCU', |
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| 165 | base = xcu_base + offset, |
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| 166 | size = xcu_size, |
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| 167 | channels = nb_cores * irq_per_proc, |
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| 168 | arg0 = 16, arg1 = 16, arg2 = 16 ) |
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| 169 | |
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| 170 | archi.addIrq( dstdev = xcu, |
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| 171 | port = 8, |
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| 172 | srcdev = mmc ) |
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| 173 | |
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[1058] | 174 | ### TTY and IOC backup |
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[1057] | 175 | if ( x==0 ) and ( y==0 ): |
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| 176 | tty_bak = archi.addDevice( ptype = 'TXT_TTY', |
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| 177 | base = tty_base + offset, |
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| 178 | size = tty_size, |
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| 179 | channels = nb_ttys ) |
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| 180 | |
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| 181 | archi.addIrq( dstdev = xcu, |
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[1058] | 182 | port = TODO |
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[1057] | 183 | srcdev = tty_bak, |
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| 184 | channel = 0, |
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| 185 | is_rx = False ) |
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| 186 | |
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[1058] | 187 | ioc_bak = archi.addDevice( ptype = 'IOC_BDV', |
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| 188 | base = ioc_base + offset, |
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| 189 | size = ioc_size ) |
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| 190 | |
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| 191 | archi.addIrq( dstdev = xcu, |
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| 192 | port = TODO |
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| 193 | srcdev = ioc_bak ) |
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| 194 | |
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[1057] | 195 | for p in xrange ( nb_cores ): |
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| 196 | archi.addProc( x, y, p ) |
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| 197 | |
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| 198 | ### peripherals in external cluster_io |
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| 199 | if( cluster_xy == io_cxy ): |
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| 200 | |
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| 201 | tty = archi.addDevice( ptype = 'TXT_TTY', |
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| 202 | base = tty_base + offset, |
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| 203 | size = tty_size, |
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| 204 | channels = nb_ttys ) |
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| 205 | |
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| 206 | ioc = archi.addDevice( ptype = ioc_type, |
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| 207 | base = ioc_base + offset, |
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| 208 | size = ioc_size ) |
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| 209 | |
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| 210 | nic = archi.addDevice( ptype = 'NIC_CBF', |
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| 211 | base = nic_base + offset, |
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| 212 | size = nic_size, |
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| 213 | channels = nb_nics ) |
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| 214 | |
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| 215 | fbf = archi.addDevice( ptype = 'FBF_SCL', |
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| 216 | base = fbf_base + offset, |
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| 217 | size = fbf_size, |
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| 218 | arg0 = fbf_width, arg1 = fbf_width ) |
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| 219 | |
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| 220 | pic = archi.addDevice( 'PIC', base = pic_base + offset, size = pic_size, |
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| 221 | ptype = 'PIC', channels = 32 ) |
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| 222 | |
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| 223 | archi.addIrq( dstdev = pic, port = 0, srcdev = nic, channel = 0 ) |
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| 224 | # todo |
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| 225 | # archi.addIrq( pic, index = 1, src = nic, |
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| 226 | # isrtype = 'ISR_NIC_RX', channel = 1 ) |
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| 227 | # archi.addIrq( pic, index = 2, src = nic, |
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| 228 | # isrtype = 'ISR_NIC_TX', channel = 0 ) |
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| 229 | # archi.addIrq( pic, index = 3, src = nic, |
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| 230 | # isrtype = 'ISR_NIC_TX', channel = 1 ) |
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| 231 | # archi.addIrq( pic, index = 4, src = cma, |
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| 232 | # isrtype = 'ISR_CMA', channel = 0 ) |
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| 233 | # archi.addIrq( pic, index = 5, src = cma, |
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| 234 | # isrtype = 'ISR_CMA', channel = 1 ) |
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| 235 | # archi.addIrq( pic, index = 6, src = cma, |
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| 236 | # isrtype = 'ISR_CMA', channel = 2 ) |
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| 237 | # archi.addIrq( pic, index = 7, src = cma, |
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| 238 | # isrtype = 'ISR_CMA', channel = 3 ) |
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| 239 | |
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| 240 | |
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| 241 | archi.addIrq( dstdev = pic, port = 8, srcdev = ioc ) |
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| 242 | |
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| 243 | # archi.addIrq( pic, index = 16, src = tty, |
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| 244 | # isrtype = 'ISR_TTY_RX', channel = 0 ) |
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| 245 | # archi.addIrq( pic, index = 17, src = tty, |
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| 246 | # isrtype = 'ISR_TTY_RX', channel = 1 ) |
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| 247 | # archi.addIrq( pic, index = 18, src = tty, |
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| 248 | # isrtype = 'ISR_TTY_RX', channel = 2 ) |
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| 249 | # archi.addIrq( pic, index = 19, src = tty, |
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| 250 | # isrtype = 'ISR_TTY_RX', channel = 3 ) |
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| 251 | # archi.addIrq( pic, index = 20, src = tty, |
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| 252 | # isrtype = 'ISR_TTY_RX', channel = 4 ) |
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| 253 | # archi.addIrq( pic, index = 21, src = tty, |
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| 254 | # isrtype = 'ISR_TTY_RX', channel = 5 ) |
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| 255 | # archi.addIrq( pic, index = 22, src = tty, |
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| 256 | # isrtype = 'ISR_TTY_RX', channel = 6 ) |
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| 257 | # archi.addIrq( pic, index = 23, src = tty, |
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| 258 | # isrtype = 'ISR_TTY_RX', channel = 7 ) |
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| 259 | |
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| 260 | return archi |
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| 261 | |
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| 262 | ########################## platform test ############################################# |
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| 263 | |
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| 264 | if __name__ == '__main__': |
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| 265 | |
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| 266 | archi = Archinfo( x_size = 2, |
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| 267 | y_size = 3, |
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| 268 | nb_cores = 2 ) |
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| 269 | |
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| 270 | print archi.xml() |
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| 271 | |
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| 272 | # print archi.giet_vsegs() |
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| 273 | |
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| 274 | |
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| 275 | # Local Variables: |
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| 276 | # tab-width: 4; |
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| 277 | # c-basic-offset: 4; |
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| 278 | # c-file-offsets:((innamespace . 0)(inline-open . 0)); |
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| 279 | # indent-tabs-mode: nil; |
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| 280 | # End: |
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| 281 | # |
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| 282 | # vim: filetype=python:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 283 | |
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