[1040] | 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | from math import log, ceil |
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| 4 | from mapping import * |
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| 5 | |
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| 6 | ################################################################################## |
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| 7 | # file : arch.py (for the tsar_generic_xbar architecture) |
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| 8 | # date : march 2015 |
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| 9 | # author : Manuel Bouyer |
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| 10 | ################################################################################## |
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| 11 | # This file contains a mapping generator for the "tsar_generic_xbar" platform. |
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| 12 | # This includes both the hardware architecture (clusters, processors, peripherals, |
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| 13 | # physical space segmentation) and the mapping of all boot and kernel objects |
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| 14 | # (global vsegs). |
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| 15 | # |
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| 16 | # This platform includes 7 external peripherals, located in the [x_io, x_io] |
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| 17 | # cluster. |
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| 18 | # Available peripherals are: TTY, IOC, FBF, ROM, NIC, CMA, PIC. |
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| 19 | # |
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| 20 | # All clusters contain (nb_procs) processors, one L2 cache, one XCU, and |
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| 21 | # one optional hardware coprocessor connected to a MWMR_DMA controller. |
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| 22 | # |
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| 23 | # The "constructor" parameters (defined in Makefile) are: |
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| 24 | # - x_size : number of clusters in a row |
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| 25 | # - y_size : number of clusters in a column |
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| 26 | # - nb_procs : number of processors per cluster |
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| 27 | # - nb_ttys : number of TTY channels |
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| 28 | # - fbf_width : frame_buffer width = frame_buffer heigth |
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| 29 | # - ioc_type : can be 'BDV','HBA','SDC', 'SPI' but not 'RDK' |
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| 30 | # - mwr_type : coprocessor type / only 'NONE' is supported |
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| 31 | # |
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| 32 | # The other hardware parameters (defined in this script) are: |
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| 33 | # - nb_nics : number of NIC channels |
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| 34 | # - nb_cmas : number of CMA channels |
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| 35 | # - x_io : cluster_io x coordinate |
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| 36 | # - y_io : cluster_io y coordinate |
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| 37 | # - x_width : number of bits for x coordinate |
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| 38 | # - y_width : number of bits for y coordinate |
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| 39 | # - p_width : number of bits for processor local index |
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| 40 | # - paddr_width : number of bits for physical address |
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| 41 | # - irq_per_proc : number of input IRQs per processor |
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| 42 | # - peri_increment : address increment for replicated peripherals |
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| 43 | # |
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| 44 | # Regarding the boot and kernel vsegs mapping : |
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| 45 | # - We use one big physical page (2 Mbytes) for the preloader, |
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| 46 | # the 4 boot vsegs are packed in one BPP allocated in cluster[0,0]. |
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| 47 | # - We use one BPP per cluster for the replicated kernel code vsegs. |
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| 48 | # - We use one BPP in cluster[0][0] for the kernel data vseg. |
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| 49 | # - We use two BPP per cluster for the distributed kernel heap vsegs. |
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| 50 | # - We use one BPP per cluster for the distributed ptab vsegs. |
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| 51 | # - We use two SPP per cluster for each schedulers. |
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| 52 | # - We use one PBB for each external peripheral in IO cluster, |
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| 53 | # - We use one SPP per cluster for each internal peripheral. |
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| 54 | ################################################################################## |
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| 55 | |
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| 56 | ######################## |
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| 57 | def arch( x_size = 1, |
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| 58 | y_size = 1, |
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| 59 | nb_procs = 4, |
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| 60 | nb_ttys = 1, |
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| 61 | fbf_width = 128, |
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| 62 | ioc_type = 'BDV', |
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| 63 | mwr_type = 'NONE' ): |
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| 64 | |
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| 65 | ### define architecture constants |
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| 66 | |
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| 67 | nb_nics = 0 |
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| 68 | nb_cmas = 4 |
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| 69 | x_io = 0 |
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| 70 | y_io = 0 |
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| 71 | x_width = 2 |
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| 72 | y_width = 6 |
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| 73 | p_width = 4 |
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| 74 | paddr_width = 40 |
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| 75 | irq_per_proc = 4 |
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| 76 | peri_increment = 0x10000 |
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| 77 | |
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| 78 | ### constructor parameters checking |
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| 79 | |
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| 80 | assert( nb_procs <= (1 << p_width) ) |
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| 81 | |
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| 82 | assert( (x_size == 1) or (x_size == 2) or (x_size == 4) |
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| 83 | or (x_size == 8) or (x_size == 16) ) |
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| 84 | |
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| 85 | assert( (y_size == 1) or (y_size == 2) or (y_size == 4) |
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| 86 | or (y_size == 8) or (y_size == 16) ) |
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| 87 | |
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| 88 | assert( (nb_ttys >= 1) and (nb_ttys <= 16) ) |
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| 89 | |
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| 90 | assert( ((x_io >= 0) and (y_io >= 0)) and |
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| 91 | ((x_io < x_size) and (y_io < y_size)) ) |
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| 92 | |
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| 93 | assert( ioc_type in [ 'BDV' , 'HBA' , 'SDC' , 'SPI' ] ) |
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| 94 | |
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| 95 | assert( mwr_type in [ 'NONE' ] ) |
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| 96 | |
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| 97 | ### define platform name |
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| 98 | |
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| 99 | platform_name = 'tsar_xbar_%d_%d_%d' % ( x_size, y_size , nb_procs ) |
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| 100 | platform_name += '_%d_%d_%s' % ( fbf_width , nb_ttys , ioc_type ) |
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| 101 | |
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| 102 | ### define physical segments replicated in all clusters |
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| 103 | |
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| 104 | ram_base = 0x0000000000 |
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| 105 | ram_size = 0x4000000 # 64 Mbytes |
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| 106 | |
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| 107 | xcu_base = 0x00B0000000 |
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| 108 | xcu_size = 0x1000 # 4 Kbytes |
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| 109 | |
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| 110 | mmc_base = 0x00B2000000 |
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| 111 | mmc_size = 0x1000 # 4 Kbytes |
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| 112 | |
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| 113 | ### define physical segments for peripherals |
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| 114 | ## These segments are only defined in cluster_io |
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| 115 | |
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| 116 | ioc_base = 0x00B3000000 |
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| 117 | ioc_size = 0x1000 # 4 Kbytes |
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| 118 | |
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| 119 | tty_base = 0x00B4000000 |
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| 120 | tty_size = 0x4000 # 16 Kbytes |
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| 121 | |
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| 122 | nic_base = 0x00B5000000 |
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| 123 | nic_size = 0x80000 # 512 kbytes |
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| 124 | |
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| 125 | cma_base = 0x00B6000000 |
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| 126 | cma_size = 0x1000 * nb_cmas # 4 kbytes * nb_cmas |
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| 127 | |
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| 128 | fbf_base = 0x00B7000000 |
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| 129 | fbf_size = fbf_width * fbf_width # fbf_width * fbf_width bytes |
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| 130 | |
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| 131 | sim_base = 0x00B8000000 |
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| 132 | sim_size = 0x1000 # 4 Kbytes |
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| 133 | |
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| 134 | rom_base = 0x00BFC00000 |
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| 135 | rom_size = 0x4000 # 16 Kbytes |
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| 136 | |
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| 137 | ### define bootloader vsegs base addresses and sizes |
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| 138 | ### We want to pack these 4 vsegs in 2 big pages |
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| 139 | ### => boot cost two BIG pages in cluster[0][0] |
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| 140 | |
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| 141 | boot_mapping_vbase = 0x00000000 # ident |
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| 142 | boot_mapping_size = 0x00100000 # 1 Mbytes |
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| 143 | |
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| 144 | boot_code_vbase = 0x00100000 # ident |
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| 145 | boot_code_size = 0x00080000 # 512 Kbytes |
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| 146 | |
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| 147 | boot_stack_vbase = 0x00180000 # ident |
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| 148 | boot_stack_size = 0x00080000 # 512 Kbytes |
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| 149 | |
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| 150 | boot_data_vbase = 0x00200000 # ident |
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| 151 | boot_data_size = 0x00200000 # 2 Mbytes |
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| 152 | |
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| 153 | ### define kernel vsegs base addresses and sizes |
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| 154 | ### code, init, ptab, heap & sched vsegs are replicated in all clusters. |
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| 155 | ### data & uncdata vsegs are only mapped in cluster[0][0]. |
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| 156 | |
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| 157 | kernel_code_vbase = 0x80000000 |
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| 158 | kernel_code_size = 0x00200000 # 2 Mbytes per cluster |
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| 159 | |
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| 160 | kernel_data_vbase = 0x90000000 |
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| 161 | kernel_data_size = 0x00200000 # 2 Mbytes in cluster[0,0] |
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| 162 | |
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| 163 | kernel_ptab_vbase = 0xE0000000 |
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| 164 | kernel_ptab_size = 0x00200000 # 2 Mbytes per cluster |
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| 165 | |
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| 166 | kernel_heap_vbase = 0xC0000000 |
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| 167 | kernel_heap_size = 0x00400000 # 4 Mbytes per cluster |
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| 168 | |
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| 169 | kernel_sched_vbase = 0xA0000000 |
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| 170 | kernel_sched_size = 0x00002000*nb_procs # 8 Kbytes per proc per cluster |
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| 171 | |
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| 172 | ######################### |
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| 173 | ### create mapping |
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| 174 | ######################### |
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| 175 | |
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| 176 | mapping = Mapping( name = platform_name, |
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| 177 | x_size = x_size, |
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| 178 | y_size = y_size, |
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| 179 | nprocs = nb_procs, |
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| 180 | x_width = x_width, |
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| 181 | y_width = y_width, |
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| 182 | p_width = p_width, |
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| 183 | paddr_width = paddr_width, |
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| 184 | coherence = True, |
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| 185 | irq_per_proc = irq_per_proc, |
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| 186 | use_ramdisk = (ioc_type == 'RDK'), |
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| 187 | x_io = x_io, |
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| 188 | y_io = y_io, |
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| 189 | peri_increment = peri_increment, |
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| 190 | ram_base = ram_base, |
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| 191 | ram_size = ram_size ) |
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| 192 | |
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| 193 | |
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| 194 | ############################# |
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| 195 | ### Hardware Components |
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| 196 | ############################# |
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| 197 | |
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| 198 | for x in xrange( x_size ): |
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| 199 | for y in xrange( y_size ): |
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| 200 | cluster_xy = (x << y_width) + y; |
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| 201 | offset = cluster_xy << (paddr_width - x_width - y_width) |
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| 202 | |
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| 203 | ### components replicated in all clusters |
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| 204 | mapping.addRam( 'RAM', base = ram_base + offset, |
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| 205 | size = ram_size ) |
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| 206 | |
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| 207 | xcu = mapping.addPeriph( 'XCU', base = xcu_base + offset, |
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| 208 | size = xcu_size, ptype = 'XCU', |
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| 209 | channels = nb_procs * irq_per_proc, |
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| 210 | arg0 = 32, arg1 = 32, arg2 = 32 ) |
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| 211 | mmc = mapping.addPeriph( 'MMC', base = mmc_base + offset, |
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| 212 | size = mmc_size, ptype = 'MMC' ) |
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| 213 | |
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| 214 | for p in xrange ( nb_procs ): |
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| 215 | mapping.addProc( x , y , p ) |
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| 216 | |
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| 217 | ### peripherals in cluster_io |
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| 218 | if ( (x==x_io) and (y==y_io) ): |
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| 219 | |
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| 220 | ioc = mapping.addPeriph( 'IOC', base = ioc_base + offset, size = ioc_size, |
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| 221 | ptype = 'IOC', subtype = ioc_type ) |
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| 222 | |
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| 223 | if ( ioc_type == 'BDV' ): isr_type = 'ISR_BDV' |
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| 224 | elif ( ioc_type == 'HBA' ): isr_type = 'ISR_HBA' |
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| 225 | elif ( ioc_type == 'SPI' ): isr_type = 'ISR_SPI' |
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| 226 | elif ( ioc_type == 'SDC' ): isr_type = 'ISR_SDC' |
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| 227 | mapping.addIrq( xcu, index = 31, src = ioc, isrtype = isr_type, channel = 0 ) |
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| 228 | |
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| 229 | tty = mapping.addPeriph( 'TTY', base = tty_base + offset, size = tty_size, |
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| 230 | ptype = 'TTY', channels = nb_ttys ) |
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| 231 | for t in xrange( nb_ttys ): |
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| 232 | mapping.addIrq( xcu, index = 16 + t, src = tty, isrtype = 'ISR_TTY_RX', channel = t ) |
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| 233 | |
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| 234 | nic = mapping.addPeriph( 'NIC', base = nic_base + offset, size = nic_size, |
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| 235 | ptype = 'NIC', channels = nb_nics ) |
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| 236 | |
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| 237 | #mapping.addIrq( xcu, index = xcu_index, src = nic, |
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| 238 | # isrtype = 'ISR_NIC_RX', channel = 0 ) |
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| 239 | #mapping.addIrq( xcu, index = xcu_index, src = nic, |
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| 240 | # isrtype = 'ISR_NIC_RX', channel = 1 ) |
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| 241 | #mapping.addIrq( xcu, index = xcu_index, src = nic, |
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| 242 | # isrtype = 'ISR_NIC_TX', channel = 0 ) |
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| 243 | #mapping.addIrq( xcu, index = xcu_index, src = nic, |
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| 244 | # isrtype = 'ISR_NIC_TX', channel = 1 ) |
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| 245 | |
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| 246 | cma = mapping.addPeriph( 'CMA', base = cma_base + offset, size = cma_size, |
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| 247 | ptype = 'CMA', channels = nb_cmas ) |
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| 248 | #mapping.addIrq( xcu, index = xcu_index, src = cma, |
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| 249 | # isrtype = 'ISR_CMA', channel = 0 ) |
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| 250 | #mapping.addIrq( xcu, index = xcu_index, src = cma, |
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| 251 | # isrtype = 'ISR_CMA', channel = 1 ) |
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| 252 | #mapping.addIrq( xcu, index = xcu_index, src = cma, |
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| 253 | # isrtype = 'ISR_CMA', channel = 2 ) |
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| 254 | #mapping.addIrq( xcu, index = xcu_index, src = cma, |
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| 255 | # isrtype = 'ISR_CMA', channel = 3 ) |
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| 256 | |
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| 257 | fbf = mapping.addPeriph( 'FBF', base = fbf_base + offset, size = fbf_size, |
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| 258 | ptype = 'FBF', arg0 = fbf_width, arg1 = fbf_width ) |
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| 259 | |
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| 260 | rom = mapping.addPeriph( 'ROM', base = rom_base + offset, size = rom_size, |
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| 261 | ptype = 'ROM' ) |
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| 262 | |
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| 263 | sim = mapping.addPeriph( 'SIM', base = sim_base + offset, size = sim_size, |
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| 264 | ptype = 'SIM') |
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| 265 | |
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| 266 | #################################### |
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| 267 | ### Boot & Kernel vsegs mapping |
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| 268 | #################################### |
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| 269 | |
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| 270 | ### global vsegs for boot_loader |
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| 271 | ### we want to pack those 4 vsegs in the same big page |
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| 272 | ### => same flags CXW_ / identity mapping / non local / big page |
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| 273 | |
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| 274 | mapping.addGlobal( 'seg_boot_mapping', boot_mapping_vbase, boot_mapping_size, |
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| 275 | 'CXW_', vtype = 'BLOB' , x = 0, y = 0, pseg = 'RAM', |
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| 276 | identity = True , local = False, big = True ) |
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| 277 | |
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| 278 | mapping.addGlobal( 'seg_boot_code', boot_code_vbase, boot_code_size, |
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| 279 | 'CXW_', vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM', |
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| 280 | identity = True , local = False, big = True ) |
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| 281 | |
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| 282 | mapping.addGlobal( 'seg_boot_data', boot_data_vbase, boot_data_size, |
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| 283 | 'CXW_', vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM', |
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| 284 | identity = True , local = False, big = True ) |
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| 285 | |
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| 286 | mapping.addGlobal( 'seg_boot_stack', boot_stack_vbase, boot_stack_size, |
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| 287 | 'CXW_', vtype = 'BUFFER', x = 0, y = 0, pseg = 'RAM', |
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| 288 | identity = True , local = False, big = True ) |
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| 289 | |
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| 290 | ### global vseg kernel_data : big / non local |
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| 291 | ### Only mapped in cluster[0][0] |
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| 292 | mapping.addGlobal( 'seg_kernel_data', kernel_data_vbase, kernel_data_size, |
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| 293 | 'CXW_', vtype = 'ELF', x = 0, y = 0, pseg = 'RAM', |
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| 294 | binpath = 'bin/kernel/kernel.elf', |
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| 295 | local = False, big = True ) |
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| 296 | |
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| 297 | ### global vsegs kernel_code : big / local |
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| 298 | ### replicated in all clusters with indexed name & same vbase |
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| 299 | for x in xrange( x_size ): |
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| 300 | for y in xrange( y_size ): |
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| 301 | mapping.addGlobal( 'seg_kernel_code_%d_%d' %(x,y), |
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| 302 | kernel_code_vbase, kernel_code_size, |
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| 303 | 'CXW_', vtype = 'ELF', x = x , y = y , pseg = 'RAM', |
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| 304 | binpath = 'bin/kernel/kernel.elf', |
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| 305 | local = True, big = True ) |
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| 306 | |
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| 307 | ### Global vsegs kernel_ptab_x_y : big / non local |
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| 308 | ### one vseg per cluster: name indexed by (x,y) |
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| 309 | for x in xrange( x_size ): |
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| 310 | for y in xrange( y_size ): |
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| 311 | offset = ((x << y_width) + y) * kernel_ptab_size |
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| 312 | base = kernel_ptab_vbase + offset |
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| 313 | mapping.addGlobal( 'seg_kernel_ptab_%d_%d' %(x,y), base, kernel_ptab_size, |
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| 314 | 'CXW_', vtype = 'PTAB', x = x, y = y, pseg = 'RAM', |
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| 315 | local = False , big = True ) |
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| 316 | |
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| 317 | ### global vsegs kernel_sched_x_y : small / non local |
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| 318 | ### one vseg per cluster with name indexed by (x,y) |
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| 319 | for x in xrange( x_size ): |
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| 320 | for y in xrange( y_size ): |
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| 321 | offset = ((x << y_width) + y) * kernel_sched_size |
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| 322 | mapping.addGlobal( 'seg_kernel_sched_%d_%d' %(x,y), |
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| 323 | kernel_sched_vbase + offset , kernel_sched_size, |
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| 324 | 'C_W_', vtype = 'SCHED', x = x , y = y , pseg = 'RAM', |
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| 325 | local = False, big = False ) |
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| 326 | |
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| 327 | ### global vsegs kernel_heap_x_y : big / non local |
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| 328 | ### one vseg per cluster with name indexed by (x,y) |
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| 329 | for x in xrange( x_size ): |
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| 330 | for y in xrange( y_size ): |
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| 331 | offset = ((x << y_width) + y) * kernel_heap_size |
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| 332 | mapping.addGlobal( 'seg_kernel_heap_%d_%d' %(x,y), |
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| 333 | kernel_heap_vbase + offset , kernel_heap_size, |
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| 334 | 'C_W_', vtype = 'HEAP', x = x , y = y , pseg = 'RAM', |
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| 335 | local = False, big = True ) |
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| 336 | |
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| 337 | ### global vsegs for external peripherals : non local / big page |
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| 338 | mapping.addGlobal( 'seg_ioc', ioc_base, ioc_size, '__W_', |
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| 339 | vtype = 'PERI', x = 0, y = 0, pseg = 'IOC', |
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| 340 | local = False, big = True ) |
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| 341 | |
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| 342 | mapping.addGlobal( 'seg_tty', tty_base, tty_size, '__W_', |
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| 343 | vtype = 'PERI', x = 0, y = 0, pseg = 'TTY', |
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| 344 | local = False, big = True ) |
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| 345 | |
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| 346 | mapping.addGlobal( 'seg_nic', nic_base, nic_size, '__W_', |
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| 347 | vtype = 'PERI', x = 0, y = 0, pseg = 'NIC', |
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| 348 | local = False, big = True ) |
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| 349 | |
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| 350 | mapping.addGlobal( 'seg_cma', cma_base, cma_size, '__W_', |
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| 351 | vtype = 'PERI', x = 0, y = 0, pseg = 'CMA', |
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| 352 | local = False, big = True ) |
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| 353 | |
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| 354 | mapping.addGlobal( 'seg_fbf', fbf_base, fbf_size, '__W_', |
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| 355 | vtype = 'PERI', x = 0, y = 0, pseg = 'FBF', |
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| 356 | local = False, big = True ) |
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| 357 | |
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| 358 | mapping.addGlobal( 'seg_sim', sim_base, sim_size, '__W_', |
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| 359 | vtype = 'PERI', x = 0, y = 0, pseg = 'SIM', |
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| 360 | local = False, big = True ) |
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| 361 | |
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| 362 | mapping.addGlobal( 'seg_rom', rom_base, rom_size, 'CXW_', |
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| 363 | vtype = 'PERI', x = 0, y = 0, pseg = 'ROM', |
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| 364 | local = False, big = True ) |
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| 365 | |
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| 366 | ### global vsegs for internal peripherals : non local / small pages |
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| 367 | ### allocated in all clusters with name indexed by (x,y) |
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| 368 | ### as vbase address is incremented by (cluster_xy * vseg_increment) |
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| 369 | for x in xrange( x_size ): |
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| 370 | for y in xrange( y_size ): |
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| 371 | offset = ((x << y_width) + y) * peri_increment |
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| 372 | |
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| 373 | mapping.addGlobal( 'seg_xcu_%d_%d' %(x,y), xcu_base + offset, xcu_size, |
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| 374 | '__W_', vtype = 'PERI' , x = x , y = y , pseg = 'XCU', |
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| 375 | local = False, big = False ) |
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| 376 | |
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| 377 | mapping.addGlobal( 'seg_mmc_%d_%d' %(x,y), mmc_base + offset, mmc_size, |
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| 378 | '__W_', vtype = 'PERI' , x = x , y = y , pseg = 'MMC', |
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| 379 | local = False, big = False ) |
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| 380 | |
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| 381 | return mapping |
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| 382 | |
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| 383 | ################################# platform test #################################### |
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| 384 | |
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| 385 | if __name__ == '__main__': |
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| 386 | |
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| 387 | mapping = arch( x_size = 2, |
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| 388 | y_size = 2, |
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| 389 | nb_procs = 2 ) |
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| 390 | |
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| 391 | # print mapping.netbsd_dts() |
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| 392 | |
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| 393 | print mapping.xml() |
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| 394 | |
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| 395 | # print mapping.giet_vsegs() |
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| 396 | |
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| 397 | |
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| 398 | # Local Variables: |
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| 399 | # tab-width: 4; |
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| 400 | # c-basic-offset: 4; |
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| 401 | # c-file-offsets:((innamespace . 0)(inline-open . 0)); |
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| 402 | # indent-tabs-mode: nil; |
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| 403 | # End: |
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| 404 | # |
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| 405 | # vim: filetype=python:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 406 | |
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