1 | /////////////////////////////////////////////////////////////////////////////////// |
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2 | // File : sys_handler.c |
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3 | // Date : 01/04/2012 |
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4 | // Author : alain greiner and joel porquet |
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5 | // Copyright (c) UPMC-LIP6 |
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6 | /////////////////////////////////////////////////////////////////////////////////// |
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7 | |
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8 | #include <sys_handler.h> |
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9 | #include <tty_driver.h> |
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10 | #include <tim_driver.h> |
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11 | #include <nic_driver.h> |
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12 | #include <mmc_driver.h> |
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13 | #include <mwr_driver.h> |
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14 | #include <cma_driver.h> |
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15 | #include <ctx_handler.h> |
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16 | #include <fat32.h> |
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17 | #include <utils.h> |
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18 | #include <kernel_malloc.h> |
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19 | #include <tty0.h> |
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20 | #include <vmem.h> |
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21 | #include <hard_config.h> |
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22 | #include <giet_config.h> |
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23 | #include <mapping_info.h> |
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24 | #include <irq_handler.h> |
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25 | #include <io.h> |
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26 | |
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27 | #if !defined(SEG_BOOT_MAPPING_BASE) |
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28 | # error: You must define SEG_BOOT_MAPPING_BASE in the hard_config.h file |
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29 | #endif |
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30 | |
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31 | #if !defined(NB_TTY_CHANNELS) |
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32 | # error: You must define NB_TTY_CHANNELS in the hard_config.h file |
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33 | #endif |
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34 | |
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35 | #if (NB_TTY_CHANNELS < 1) |
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36 | # error: NB_TTY_CHANNELS cannot be smaller than 1! |
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37 | #endif |
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38 | |
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39 | #if !defined(NB_TIM_CHANNELS) |
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40 | # error: You must define NB_TIM_CHANNELS in the hard_config.h file |
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41 | #endif |
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42 | |
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43 | #if !defined(NB_NIC_CHANNELS) |
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44 | # error: You must define NB_NIC_CHANNELS in the hard_config.h file |
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45 | #endif |
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46 | |
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47 | #if !defined(NB_CMA_CHANNELS) |
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48 | # error: You must define NB_CMA_CHANNELS in the hard_config.h file |
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49 | #endif |
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50 | |
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51 | #if !defined(GIET_NO_HARD_CC) |
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52 | # error: You must define GIET_NO_HARD_CC in the giet_config.h file |
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53 | #endif |
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54 | |
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55 | #if !defined ( GIET_NIC_MAC4 ) |
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56 | # error: You must define GIET_NIC_MAC4 in the giet_config.h file |
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57 | #endif |
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58 | |
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59 | #if !defined ( GIET_NIC_MAC2 ) |
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60 | # error: You must define GIET_NIC_MAC2 in the giet_config.h file |
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61 | #endif |
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62 | |
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63 | //////////////////////////////////////////////////////////////////////////// |
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64 | // Extern variables |
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65 | //////////////////////////////////////////////////////////////////////////// |
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66 | |
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67 | // allocated in tty0.c file. |
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68 | extern sqt_lock_t _tty0_sqt_lock; |
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69 | |
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70 | // allocated in mwr_driver.c file. |
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71 | extern simple_lock_t _coproc_lock[X_SIZE*Y_SIZE]; |
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72 | extern unsigned int _coproc_type[X_SIZE*Y_SIZE]; |
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73 | extern unsigned int _coproc_info[X_SIZE*Y_SIZE]; |
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74 | extern unsigned int _coproc_mode[X_SIZE*Y_SIZE]; |
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75 | extern unsigned int _coproc_error[X_SIZE*Y_SIZE]; |
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76 | extern unsigned int _coproc_gtid[X_SIZE*Y_SIZE]; |
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77 | |
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78 | |
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79 | // allocated in tty_driver.c file. |
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80 | extern unsigned int _tty_rx_full[NB_TTY_CHANNELS]; |
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81 | extern unsigned int _tty_rx_buf[NB_TTY_CHANNELS]; |
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82 | |
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83 | //////////////////////////////////////////////////////////////////////////// |
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84 | // Channel allocators for peripherals |
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85 | // (TTY[0] is reserved for kernel) |
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86 | //////////////////////////////////////////////////////////////////////////// |
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87 | |
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88 | __attribute__((section(".kdata"))) |
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89 | unsigned int _tty_channel_allocator = 1; |
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90 | |
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91 | __attribute__((section(".kdata"))) |
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92 | unsigned int _tim_channel_allocator = 0; |
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93 | |
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94 | __attribute__((section(".kdata"))) |
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95 | unsigned int _cma_channel_allocator = 0; |
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96 | |
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97 | __attribute__((section(".kdata"))) |
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98 | unsigned int _nic_rx_channel_allocator = 0; |
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99 | |
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100 | __attribute__((section(".kdata"))) |
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101 | unsigned int _nic_tx_channel_allocator = 0; |
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102 | |
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103 | //////////////////////////////////////////////////////////////////////////// |
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104 | // NIC_RX and NIC_TX chbuf arrays |
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105 | //////////////////////////////////////////////////////////////////////////// |
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106 | |
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107 | __attribute__((section(".kdata"))) |
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108 | nic_chbuf_t _nic_rx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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109 | |
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110 | __attribute__((section(".kdata"))) |
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111 | nic_chbuf_t _nic_tx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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112 | |
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113 | //////////////////////////////////////////////////////////////////////////// |
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114 | // FBF related chbuf descriptors array, indexed by the CMA channel index. |
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115 | // Physical addresses of these chbuf descriptors required for L2 cache sync. |
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116 | //////////////////////////////////////////////////////////////////////////// |
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117 | |
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118 | __attribute__((section(".kdata"))) |
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119 | fbf_chbuf_t _fbf_chbuf[NB_CMA_CHANNELS] __attribute__((aligned(64))); |
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120 | |
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121 | __attribute__((section(".kdata"))) |
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122 | unsigned long long _fbf_chbuf_paddr[NB_CMA_CHANNELS]; |
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123 | |
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124 | //////////////////////////////////////////////////////////////////////////// |
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125 | // Initialize the syscall vector with syscall handlers |
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126 | // Note: This array must be synchronised with the define in file stdio.h |
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127 | //////////////////////////////////////////////////////////////////////////// |
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128 | |
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129 | __attribute__((section(".kdata"))) |
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130 | const void * _syscall_vector[64] = |
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131 | { |
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132 | &_sys_proc_xyp, /* 0x00 */ |
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133 | &_get_proctime, /* 0x01 */ |
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134 | &_sys_tty_write, /* 0x02 */ |
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135 | &_sys_tty_read, /* 0x03 */ |
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136 | &_sys_tty_alloc, /* 0x04 */ |
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137 | &_sys_tty_get_lock, /* 0x05 */ |
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138 | &_sys_tty_release_lock, /* 0x06 */ |
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139 | &_sys_heap_info, /* 0x07 */ |
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140 | &_sys_local_task_id, /* 0x08 */ |
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141 | &_sys_global_task_id, /* 0x09 */ |
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142 | &_sys_fbf_cma_alloc, /* 0x0A */ |
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143 | &_sys_fbf_cma_start, /* 0x0B */ |
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144 | &_sys_fbf_cma_display, /* 0x0C */ |
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145 | &_sys_fbf_cma_stop, /* 0x0D */ |
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146 | &_sys_task_exit, /* 0x0E */ |
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147 | &_sys_procs_number, /* 0x0F */ |
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148 | |
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149 | &_sys_fbf_sync_write, /* 0x10 */ |
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150 | &_sys_fbf_sync_read, /* 0x11 */ |
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151 | &_sys_thread_id, /* 0x12 */ |
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152 | &_sys_ukn, /* 0x13 */ |
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153 | &_sys_tim_alloc, /* 0x14 */ |
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154 | &_sys_tim_start, /* 0x15 */ |
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155 | &_sys_tim_stop, /* 0x16 */ |
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156 | &_sys_ukn, /* 0x17 */ |
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157 | &_sys_ukn, /* 0x18 */ |
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158 | &_sys_context_switch, /* 0x19 */ |
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159 | &_sys_vseg_get_vbase, /* 0x1A */ |
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160 | &_sys_vseg_get_length, /* 0x1B */ |
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161 | &_sys_xy_from_ptr, /* 0x1C */ |
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162 | &_sys_ukn, /* 0x1D */ |
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163 | &_sys_ukn, /* 0x1E */ |
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164 | &_sys_ukn, /* 0x1F */ |
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165 | |
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166 | &_fat_open, /* 0x20 */ |
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167 | &_fat_read, /* 0x21 */ |
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168 | &_fat_write, /* 0x22 */ |
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169 | &_fat_lseek, /* 0x23 */ |
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170 | &_fat_file_info, /* 0x24 */ |
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171 | &_fat_close, /* 0x25 */ |
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172 | &_fat_remove, /* 0x26 */ |
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173 | &_fat_rename, /* 0x27 */ |
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174 | &_fat_mkdir, /* 0x28 */ |
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175 | &_fat_list, /* 0x29 */ |
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176 | &_sys_ukn, /* 0x2A */ |
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177 | &_sys_ukn, /* 0x2B */ |
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178 | &_sys_ukn, /* 0x2C */ |
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179 | &_sys_ukn, /* 0x2D */ |
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180 | &_sys_ukn, /* 0x2E */ |
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181 | &_sys_ukn, /* 0x2F */ |
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182 | |
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183 | &_sys_nic_alloc, /* 0x30 */ |
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184 | &_sys_nic_start, /* 0x31 */ |
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185 | &_sys_nic_move, /* 0x32 */ |
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186 | &_sys_nic_stop, /* 0x33 */ |
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187 | &_sys_nic_stats, /* 0x34 */ |
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188 | &_sys_nic_clear, /* 0x35 */ |
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189 | &_sys_ukn, /* 0x36 */ |
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190 | &_sys_ukn, /* 0x37 */ |
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191 | &_sys_ukn, /* 0x38 */ |
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192 | &_sys_ukn, /* 0x39 */ |
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193 | &_sys_ukn, /* 0x3A */ |
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194 | &_sys_coproc_completed, /* 0x3B */ |
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195 | &_sys_coproc_alloc, /* 0x3C */ |
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196 | &_sys_coproc_channel_init, /* 0x3D */ |
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197 | &_sys_coproc_run, /* 0x3E */ |
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198 | &_sys_coproc_release, /* 0x3F */ |
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199 | }; |
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200 | |
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201 | |
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202 | ////////////////////////////////////////////////////////////////////////////// |
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203 | // Coprocessors related syscall handlers |
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204 | ////////////////////////////////////////////////////////////////////////////// |
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205 | |
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206 | ////////////////////////////////////////////////// |
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207 | int _sys_coproc_alloc( unsigned int coproc_type, |
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208 | unsigned int* coproc_info ) |
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209 | { |
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210 | // In this implementation, the allocation policy is constrained: |
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211 | // the coprocessor must be in the same cluster as the calling task, |
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212 | // and there is at most one coprocessor per cluster |
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213 | |
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214 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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215 | mapping_cluster_t * cluster = _get_cluster_base(header); |
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216 | mapping_periph_t * periph = _get_periph_base(header); |
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217 | |
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218 | // get cluster coordinates and cluster global index |
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219 | unsigned int procid = _get_procid(); |
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220 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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221 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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222 | unsigned int cluster_id = x * Y_SIZE + y; |
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223 | |
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224 | // search coprocessor in cluster |
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225 | mapping_periph_t* found = NULL; |
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226 | unsigned int min = cluster[cluster_id].periph_offset; |
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227 | unsigned int max = min + cluster[cluster_id].periphs; |
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228 | unsigned int periph_id; |
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229 | for ( periph_id = min ; periph_id < max ; periph_id++ ) |
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230 | { |
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231 | if ( (periph[periph_id].type == PERIPH_TYPE_MWR) && |
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232 | (periph[periph_id].subtype == coproc_type) ) |
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233 | { |
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234 | found = &periph[periph_id]; |
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235 | break; |
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236 | } |
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237 | } |
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238 | |
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239 | if ( found != NULL ) |
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240 | { |
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241 | // get the lock (at most one coproc per cluster) |
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242 | _simple_lock_acquire( &_coproc_lock[cluster_id] ); |
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243 | |
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244 | // register coproc characteristics in kernel arrays |
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245 | _coproc_type[cluster_id] = coproc_type; |
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246 | _coproc_info[cluster_id] = (found->arg0 & 0xFF) | |
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247 | (found->arg1 & 0xFF)<<8 | |
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248 | (found->arg2 & 0xFF)<<16 | |
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249 | (found->arg3 & 0xFF)<<24 ; |
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250 | |
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251 | // returns coprocessor info |
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252 | *coproc_info = _coproc_info[cluster_id]; |
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253 | |
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254 | // register coprocessor coordinates in task context |
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255 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
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256 | _set_context_slot( CTX_COPROC_ID , cluster_xy ); |
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257 | |
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258 | #if GIET_DEBUG_COPROC |
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259 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_alloc() in cluster[%d,%d]\n" |
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260 | " coproc_info = %x / cluster_xy = %x\n", |
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261 | x , y , *coproc_info , cluster_xy ); |
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262 | #endif |
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263 | return 0; |
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264 | } |
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265 | else |
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266 | { |
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267 | _printf("\n[GIET_ERROR] in _sys_coproc_alloc(): no coprocessor " |
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268 | " with type %d available in cluster[%d,%d]\n", |
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269 | coproc_type , x , y ); |
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270 | return -1; |
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271 | } |
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272 | } // end _sys_coproc_alloc() |
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273 | |
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274 | //////////////////////////////////////////////////////// |
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275 | int _sys_coproc_release( unsigned int coproc_reg_index ) |
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276 | { |
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277 | // processor coordinates |
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278 | unsigned int procid = _get_procid(); |
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279 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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280 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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281 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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282 | |
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283 | // get coprocessor coordinates |
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284 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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285 | if ( cluster_xy > 0xFF ) |
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286 | { |
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287 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
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288 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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289 | x , y , p ); |
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290 | return -1; |
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291 | } |
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292 | |
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293 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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294 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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295 | unsigned int cluster_id = cx * Y_SIZE + cy; |
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296 | unsigned int info = _coproc_info[cluster_id]; |
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297 | unsigned int nb_to = info & 0xFF; |
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298 | unsigned int nb_from = (info>>8) & 0xFF; |
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299 | unsigned int channel; |
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300 | |
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301 | // stops coprocessor and communication channels |
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302 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 0 ); |
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303 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
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304 | { |
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305 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 0 ); |
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306 | } |
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307 | |
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308 | // deallocates coprocessor coordinates in task context |
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309 | _set_context_slot( CTX_COPROC_ID , 0xFFFFFFFF ); |
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310 | |
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311 | // release coprocessor lock |
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312 | _simple_lock_release( &_coproc_lock[cluster_id] ); |
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313 | |
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314 | #if GIET_DEBUG_COPROC |
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315 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_release() in cluster[%d,%d]\n", |
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316 | cx, cy ); |
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317 | #endif |
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318 | |
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319 | return 0; |
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320 | } // end _sys_coproc_release() |
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321 | |
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322 | ////////////////////////////////////////////////////////////// |
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323 | int _sys_coproc_channel_init( unsigned int channel, |
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324 | giet_coproc_channel_t* desc ) |
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325 | { |
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326 | // processor coordinates |
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327 | unsigned int procid = _get_procid(); |
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328 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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329 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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330 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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331 | |
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332 | // get coprocessor coordinates |
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333 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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334 | if ( cluster_xy > 0xFF ) |
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335 | { |
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336 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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337 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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338 | x , y , p ); |
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339 | return -1; |
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340 | } |
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341 | |
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342 | // check channel mode |
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343 | unsigned mode = desc->channel_mode; |
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344 | if ( (mode != MODE_MWMR) && |
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345 | (mode != MODE_DMA_IRQ) && |
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346 | (mode != MODE_DMA_NO_IRQ) ) |
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347 | { |
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348 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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349 | " illegal mode\n"); |
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350 | return -1; |
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351 | } |
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352 | |
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353 | // get memory buffer size |
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354 | unsigned int size = desc->buffer_size; |
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355 | |
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356 | // physical addresses |
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357 | unsigned long long buffer_paddr; |
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358 | unsigned int buffer_lsb; |
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359 | unsigned int buffer_msb; |
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360 | unsigned long long mwmr_paddr = 0; |
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361 | unsigned int mwmr_lsb; |
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362 | unsigned int mwmr_msb; |
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363 | unsigned long long lock_paddr = 0; |
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364 | unsigned int lock_lsb; |
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365 | unsigned int lock_msb; |
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366 | |
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367 | unsigned int flags; // unused |
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368 | |
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369 | // compute memory buffer physical address |
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370 | buffer_paddr = _v2p_translate( desc->buffer_vaddr , &flags ); |
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371 | buffer_lsb = (unsigned int)buffer_paddr; |
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372 | buffer_msb = (unsigned int)(buffer_paddr>>32); |
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373 | |
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374 | // call MWMR_DMA driver |
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375 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MODE, mode ); |
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376 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_SIZE, size ); |
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377 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_LSB, buffer_lsb ); |
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378 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_MSB, buffer_msb ); |
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379 | |
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380 | if ( mode == MODE_MWMR ) |
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381 | { |
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382 | // compute MWMR descriptor physical address |
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383 | mwmr_paddr = _v2p_translate( desc->mwmr_vaddr , &flags ); |
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384 | mwmr_lsb = (unsigned int)mwmr_paddr; |
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385 | mwmr_msb = (unsigned int)(mwmr_paddr>>32); |
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386 | |
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387 | // call MWMR_DMA driver |
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388 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_LSB, mwmr_lsb ); |
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389 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_MSB, mwmr_msb ); |
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390 | |
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391 | // compute lock physical address |
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392 | lock_paddr = _v2p_translate( desc->lock_vaddr , &flags ); |
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393 | lock_lsb = (unsigned int)lock_paddr; |
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394 | lock_msb = (unsigned int)(lock_paddr>>32); |
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395 | |
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396 | // call MWMR_DMA driver |
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397 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_LSB, lock_lsb ); |
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398 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_MSB, lock_msb ); |
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399 | } |
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400 | |
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401 | #if GIET_DEBUG_COPROC |
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402 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_channel_init() for coproc[%d,%d]\n" |
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403 | " channel = %d / mode = %d / buffer_size = %d\n" |
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404 | " buffer_paddr = %l / mwmr_paddr = %l / lock_paddr = %l\n", |
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405 | x , y , channel , mode , size , |
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406 | buffer_paddr, mwmr_paddr, lock_paddr ); |
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407 | #endif |
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408 | |
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409 | return 0; |
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410 | } // end _sys_coproc_channel_init() |
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411 | |
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412 | //////////////////////////////////////////////////// |
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413 | int _sys_coproc_run( unsigned int coproc_reg_index ) |
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414 | { |
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415 | // processor coordinates |
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416 | unsigned int procid = _get_procid(); |
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417 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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418 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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419 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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420 | |
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421 | // get coprocessor coordinates |
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422 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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423 | if ( cluster_xy > 0xFF ) |
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424 | { |
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425 | _printf("\n[GIET_ERROR] in _sys_coproc_run(): " |
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426 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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427 | x , y , p ); |
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428 | return -1; |
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429 | } |
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430 | |
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431 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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432 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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433 | unsigned int cluster_id = cx * Y_SIZE + cy; |
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434 | unsigned int info = _coproc_info[cluster_id]; |
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435 | unsigned int nb_to = info & 0xFF; |
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436 | unsigned int nb_from = (info>>8) & 0xFF; |
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437 | unsigned int mode = 0xFFFFFFFF; |
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438 | unsigned int channel; |
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439 | |
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440 | // register coprocessor running mode |
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441 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
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442 | { |
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443 | unsigned int temp; |
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444 | temp = _mwr_get_channel_register( cluster_xy , channel , MWR_CHANNEL_MODE ); |
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445 | |
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446 | if ( mode == 0xFFFFFFFF ) |
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447 | { |
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448 | mode = temp; |
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449 | } |
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450 | else if ( temp != mode ) |
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451 | { |
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452 | _printf("\n[GIET_ERROR] P[%d,%d,%d] in _sys_coproc_run() for coprocessor[%d,%d]\n" |
---|
453 | " all channels don't have the same mode\n", x , y , p , cx , cy ); |
---|
454 | return -1; |
---|
455 | } |
---|
456 | } |
---|
457 | _coproc_mode[cluster_id] = mode; |
---|
458 | |
---|
459 | // start all communication channels |
---|
460 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
---|
461 | { |
---|
462 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 1 ); |
---|
463 | } |
---|
464 | |
---|
465 | ////////////////////////////////////////////////////////////////////////// |
---|
466 | if ( (mode == MODE_MWMR) || (mode == MODE_DMA_NO_IRQ) ) // no descheduling |
---|
467 | { |
---|
468 | // start coprocessor |
---|
469 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 1 ); |
---|
470 | |
---|
471 | #if GIET_DEBUG_COPROC |
---|
472 | if ( mode == MODE_MWMR ) |
---|
473 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
474 | " MODE_MWMR at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
475 | else |
---|
476 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
477 | " MODE_DMA_NO_IRQ at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
478 | #endif |
---|
479 | |
---|
480 | return 0; |
---|
481 | } |
---|
482 | /////////////////////////////////////////////////////////////////////////// |
---|
483 | else // mode == MODE_DMA_IRQ => descheduling |
---|
484 | { |
---|
485 | // set _coproc_gtid |
---|
486 | unsigned int ltid = _get_current_task_id(); |
---|
487 | _coproc_gtid[cluster_id] = (procid<<16) + ltid; |
---|
488 | |
---|
489 | // enters critical section |
---|
490 | unsigned int save_sr; |
---|
491 | _it_disable( &save_sr ); |
---|
492 | |
---|
493 | // reset runnable |
---|
494 | _set_task_slot( x, y, p, ltid, CTX_RUN_ID, 0 ); |
---|
495 | |
---|
496 | // start coprocessor |
---|
497 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 1 ); |
---|
498 | |
---|
499 | #if GIET_DEBUG_COPROC |
---|
500 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
501 | " MODE_DMA_IRQ at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
502 | #endif |
---|
503 | |
---|
504 | // deschedule task |
---|
505 | _ctx_switch(); |
---|
506 | |
---|
507 | #if GIET_DEBUG_COPROC |
---|
508 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] resume\n" |
---|
509 | " coprocessor[%d,%d] completion at cycle %d\n", |
---|
510 | x , y , p , cx , cy , _get_proctime() ); |
---|
511 | #endif |
---|
512 | |
---|
513 | // restore SR |
---|
514 | _it_restore( &save_sr ); |
---|
515 | |
---|
516 | // return error computed by mwr_isr() |
---|
517 | return _coproc_error[cluster_id]; |
---|
518 | } |
---|
519 | } // end _sys_coproc_run() |
---|
520 | |
---|
521 | /////////////////////////// |
---|
522 | int _sys_coproc_completed() |
---|
523 | { |
---|
524 | // processor coordinates |
---|
525 | unsigned int procid = _get_procid(); |
---|
526 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
---|
527 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
528 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
---|
529 | |
---|
530 | // get coprocessor coordinates |
---|
531 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
---|
532 | if ( cluster_xy > 0xFF ) |
---|
533 | { |
---|
534 | _printf("\n[GIET_ERROR] in _sys_coproc_completed(): " |
---|
535 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
---|
536 | x , y , p ); |
---|
537 | return -1; |
---|
538 | } |
---|
539 | |
---|
540 | unsigned int cx = cluster_xy >> Y_WIDTH; |
---|
541 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
542 | unsigned int cluster_id = cx * Y_SIZE + cy; |
---|
543 | unsigned int mode = _coproc_mode[cluster_id]; |
---|
544 | |
---|
545 | // analyse possible errors |
---|
546 | if ( mode == MODE_DMA_NO_IRQ ) |
---|
547 | { |
---|
548 | unsigned int info = _coproc_info[cluster_id]; |
---|
549 | unsigned int nb_to = info & 0xFF; |
---|
550 | unsigned int nb_from = (info>>8) & 0xFF; |
---|
551 | unsigned int error = 0; |
---|
552 | unsigned int channel; |
---|
553 | unsigned int status; |
---|
554 | |
---|
555 | // get status for all channels, and signal all reported errors |
---|
556 | for ( channel = 0 ; channel < (nb_to +nb_from) ; channel++ ) |
---|
557 | { |
---|
558 | do |
---|
559 | { |
---|
560 | status = _mwr_get_channel_register( cluster_xy , channel , MWR_CHANNEL_STATUS ); |
---|
561 | if ( status == MWR_CHANNEL_ERROR_DATA ) |
---|
562 | { |
---|
563 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
564 | " / channel %d / DATA_ERROR\n", channel ); |
---|
565 | error = 1; |
---|
566 | break; |
---|
567 | } |
---|
568 | else if ( status == MWR_CHANNEL_ERROR_LOCK ) |
---|
569 | { |
---|
570 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
571 | " / channel %d / LOCK_ERROR\n", channel ); |
---|
572 | error = 1; |
---|
573 | break; |
---|
574 | } |
---|
575 | else if ( status == MWR_CHANNEL_ERROR_DESC ) |
---|
576 | { |
---|
577 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
578 | " / channel %d / DESC_ERROR\n", channel ); |
---|
579 | error = 1; |
---|
580 | break; |
---|
581 | } |
---|
582 | } while ( status == MWR_CHANNEL_BUSY ); |
---|
583 | |
---|
584 | // reset channel |
---|
585 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 0 ); |
---|
586 | |
---|
587 | } // end for channels |
---|
588 | |
---|
589 | #if GIET_DEBUG_COPROC |
---|
590 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_completed() for coprocessor[%d,%d] error = %d\n", |
---|
591 | cx , cy , error ); |
---|
592 | #endif |
---|
593 | |
---|
594 | return error; |
---|
595 | } |
---|
596 | else // mode == MODE_MWMR or MODE_DMA_IRQ |
---|
597 | { |
---|
598 | _printf("\n[GIET ERROR] sys_coproc_completed() should not be called for " |
---|
599 | "coprocessor[%d,%d] running in MODE_MWMR or MODE_DMA_IRQ\n", cx , cy ); |
---|
600 | return 1; |
---|
601 | } |
---|
602 | } // end _sys_coproc_completed() |
---|
603 | |
---|
604 | |
---|
605 | ////////////////////////////////////////////////////////////////////////////// |
---|
606 | // TTY related syscall handlers |
---|
607 | ////////////////////////////////////////////////////////////////////////////// |
---|
608 | |
---|
609 | //////////////////// |
---|
610 | int _sys_tty_alloc() |
---|
611 | { |
---|
612 | // get a new TTY terminal index |
---|
613 | unsigned int channel = _atomic_increment( &_tty_channel_allocator, 1 ); |
---|
614 | |
---|
615 | if ( channel >= NB_TTY_CHANNELS ) |
---|
616 | { |
---|
617 | _printf("\n[GIET_ERROR] in _sys_tty_alloc() : not enough TTY channels\n"); |
---|
618 | return -1; |
---|
619 | } |
---|
620 | else |
---|
621 | { |
---|
622 | } |
---|
623 | |
---|
624 | // allocate a WTI mailbox to the calling proc if external IRQ |
---|
625 | unsigned int unused; |
---|
626 | if ( USE_PIC ) _ext_irq_alloc( ISR_TTY_RX , channel , &unused ); |
---|
627 | |
---|
628 | // update calling task index |
---|
629 | _set_context_slot( CTX_TTY_ID, channel ); |
---|
630 | |
---|
631 | return 0; |
---|
632 | } |
---|
633 | |
---|
634 | ///////////////////////////////////////////////// |
---|
635 | int _sys_tty_write( const char* buffer, |
---|
636 | unsigned int length, // number of characters |
---|
637 | unsigned int channel) // channel index |
---|
638 | { |
---|
639 | unsigned int nwritten; |
---|
640 | |
---|
641 | // compute and check tty channel |
---|
642 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
643 | if( channel >= NB_TTY_CHANNELS ) return -1; |
---|
644 | |
---|
645 | // write string to TTY channel |
---|
646 | for (nwritten = 0; nwritten < length; nwritten++) |
---|
647 | { |
---|
648 | // check tty's status |
---|
649 | if ( _tty_get_register( channel, TTY_STATUS ) & 0x2 ) break; |
---|
650 | |
---|
651 | // write one byte |
---|
652 | if (buffer[nwritten] == '\n') |
---|
653 | { |
---|
654 | _tty_set_register( channel, TTY_WRITE, (unsigned int)'\r' ); |
---|
655 | } |
---|
656 | _tty_set_register( channel, TTY_WRITE, (unsigned int)buffer[nwritten] ); |
---|
657 | } |
---|
658 | |
---|
659 | return nwritten; |
---|
660 | } |
---|
661 | |
---|
662 | //////////////////////////////////////////////// |
---|
663 | int _sys_tty_read( char* buffer, |
---|
664 | unsigned int length, // unused |
---|
665 | unsigned int channel) // channel index |
---|
666 | { |
---|
667 | // compute and check tty channel |
---|
668 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
669 | if( channel >= NB_TTY_CHANNELS ) return -1; |
---|
670 | |
---|
671 | // read one character from TTY channel |
---|
672 | if (_tty_rx_full[channel] == 0) |
---|
673 | { |
---|
674 | return 0; |
---|
675 | } |
---|
676 | else |
---|
677 | { |
---|
678 | *buffer = _tty_rx_buf[channel]; |
---|
679 | _tty_rx_full[channel] = 0; |
---|
680 | return 1; |
---|
681 | } |
---|
682 | } |
---|
683 | |
---|
684 | /////////////////////////////////////////// |
---|
685 | int _sys_tty_get_lock( unsigned int channel, // unused |
---|
686 | unsigned int * save_sr_ptr ) |
---|
687 | { |
---|
688 | // check tty channel |
---|
689 | if( channel != 0 ) return 1; |
---|
690 | |
---|
691 | _it_disable( save_sr_ptr ); |
---|
692 | _sqt_lock_acquire( &_tty0_sqt_lock ); |
---|
693 | return 0; |
---|
694 | } |
---|
695 | |
---|
696 | /////////////////////////////////////////////// |
---|
697 | int _sys_tty_release_lock( unsigned int channel, |
---|
698 | unsigned int * save_sr_ptr ) |
---|
699 | { |
---|
700 | // check tty channel |
---|
701 | if( channel != 0 ) return 1; |
---|
702 | |
---|
703 | _sqt_lock_release( &_tty0_sqt_lock ); |
---|
704 | _it_restore( save_sr_ptr ); |
---|
705 | return 0; |
---|
706 | } |
---|
707 | |
---|
708 | ////////////////////////////////////////////////////////////////////////////// |
---|
709 | // TIM related syscall handlers |
---|
710 | ////////////////////////////////////////////////////////////////////////////// |
---|
711 | |
---|
712 | //////////////////// |
---|
713 | int _sys_tim_alloc() |
---|
714 | { |
---|
715 | // get a new timer index |
---|
716 | unsigned int channel = _atomic_increment( &_tim_channel_allocator, 1 ); |
---|
717 | |
---|
718 | if ( channel >= NB_TIM_CHANNELS ) |
---|
719 | { |
---|
720 | _printf("\n[GIET_ERROR] in _sys_tim_alloc() : not enough TIM channels\n"); |
---|
721 | return -1; |
---|
722 | } |
---|
723 | else |
---|
724 | { |
---|
725 | _set_context_slot( CTX_TIM_ID, channel ); |
---|
726 | return 0; |
---|
727 | } |
---|
728 | } |
---|
729 | |
---|
730 | ///////////////////////////////////////// |
---|
731 | int _sys_tim_start( unsigned int period ) |
---|
732 | { |
---|
733 | // get timer index |
---|
734 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
735 | if ( channel >= NB_TIM_CHANNELS ) |
---|
736 | { |
---|
737 | _printf("\n[GIET_ERROR] in _sys_tim_start() : not enough TIM channels\n"); |
---|
738 | return -1; |
---|
739 | } |
---|
740 | |
---|
741 | // start timer |
---|
742 | _timer_start( channel, period ); |
---|
743 | |
---|
744 | return 0; |
---|
745 | } |
---|
746 | |
---|
747 | /////////////////// |
---|
748 | int _sys_tim_stop() |
---|
749 | { |
---|
750 | // get timer index |
---|
751 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
752 | if ( channel >= NB_TIM_CHANNELS ) |
---|
753 | { |
---|
754 | _printf("\n[GIET_ERROR] in _sys_tim_stop() : illegal timer index\n"); |
---|
755 | return -1; |
---|
756 | } |
---|
757 | |
---|
758 | // stop timer |
---|
759 | _timer_stop( channel ); |
---|
760 | |
---|
761 | return 0; |
---|
762 | } |
---|
763 | |
---|
764 | ////////////////////////////////////////////////////////////////////////////// |
---|
765 | // NIC related syscall handlers |
---|
766 | ////////////////////////////////////////////////////////////////////////////// |
---|
767 | |
---|
768 | #define NIC_CONTAINER_SIZE 4096 |
---|
769 | |
---|
770 | //////////////////////////////////////// |
---|
771 | int _sys_nic_alloc( unsigned int is_rx, |
---|
772 | unsigned int xmax, |
---|
773 | unsigned int ymax ) |
---|
774 | { |
---|
775 | // check xmax / ymax parameters |
---|
776 | if ( xmax > X_SIZE ) |
---|
777 | { |
---|
778 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() xmax argument too large\n"); |
---|
779 | return -1; |
---|
780 | } |
---|
781 | if ( ymax > Y_SIZE ) |
---|
782 | { |
---|
783 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() ymax argument too large\n"); |
---|
784 | return -1; |
---|
785 | } |
---|
786 | |
---|
787 | // get a NIC_RX or NIC_TX channel index |
---|
788 | unsigned int nic_channel; |
---|
789 | unsigned int cma_channel; |
---|
790 | |
---|
791 | if ( is_rx ) nic_channel = _atomic_increment( &_nic_rx_channel_allocator, 1 ); |
---|
792 | else nic_channel = _atomic_increment( &_nic_tx_channel_allocator, 1 ); |
---|
793 | |
---|
794 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
---|
795 | { |
---|
796 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough NIC channels\n"); |
---|
797 | return -1; |
---|
798 | } |
---|
799 | |
---|
800 | // get a CMA channel index |
---|
801 | cma_channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
---|
802 | |
---|
803 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
804 | { |
---|
805 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough CMA channels\n"); |
---|
806 | return -1; |
---|
807 | } |
---|
808 | |
---|
809 | #if GIET_DEBUG_NIC |
---|
810 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
811 | _printf("\n[GIET DEBUG NIC] Task %d enters sys_nic_alloc() at cycle %d\n" |
---|
812 | " nic_channel = %d / cma_channel = %d\n", |
---|
813 | thread , _get_proctime() , nic_channel , cma_channel ); |
---|
814 | #endif |
---|
815 | |
---|
816 | // register nic_index and cma_index in task context |
---|
817 | if ( is_rx ) |
---|
818 | { |
---|
819 | _set_context_slot( CTX_NIC_RX_ID, nic_channel ); |
---|
820 | _set_context_slot( CTX_CMA_RX_ID, cma_channel ); |
---|
821 | } |
---|
822 | else |
---|
823 | { |
---|
824 | _set_context_slot( CTX_NIC_TX_ID, nic_channel ); |
---|
825 | _set_context_slot( CTX_CMA_TX_ID, cma_channel ); |
---|
826 | } |
---|
827 | |
---|
828 | // physical addresses to be registered in the CMA registers |
---|
829 | unsigned long long nic_chbuf_pbase; // NIC chbuf physical address |
---|
830 | unsigned long long ker_chbuf_pbase; // kernel chbuf physical address |
---|
831 | |
---|
832 | // allocate one kernel container per cluster in the (xmax / ymax) mesh |
---|
833 | unsigned int cx; // cluster X coordinate |
---|
834 | unsigned int cy; // cluster Y coordinate |
---|
835 | unsigned int index; // container index in chbuf |
---|
836 | unsigned int vaddr; // virtual address |
---|
837 | unsigned long long cont_paddr; // container physical address |
---|
838 | |
---|
839 | unsigned int flags; // for _v2p_translate() |
---|
840 | |
---|
841 | for ( cx = 0 ; cx < xmax ; cx++ ) |
---|
842 | { |
---|
843 | for ( cy = 0 ; cy < ymax ; cy++ ) |
---|
844 | { |
---|
845 | // compute index in chbuf |
---|
846 | index = (cx * ymax) + cy; |
---|
847 | |
---|
848 | // allocate the kernel container |
---|
849 | vaddr = (unsigned int)_remote_malloc( NIC_CONTAINER_SIZE, cx, cy ); |
---|
850 | |
---|
851 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
---|
852 | { |
---|
853 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough kenel heap" |
---|
854 | " in cluster[%d,%d]\n", cx, cy ); |
---|
855 | return -1; |
---|
856 | } |
---|
857 | |
---|
858 | // compute container physical address |
---|
859 | cont_paddr = _v2p_translate( vaddr , &flags ); |
---|
860 | |
---|
861 | // initialize chbuf entry |
---|
862 | if ( is_rx ) _nic_rx_chbuf[nic_channel].buffer[index].desc = cont_paddr; |
---|
863 | else _nic_tx_chbuf[nic_channel].buffer[index].desc = cont_paddr; |
---|
864 | |
---|
865 | #if GIET_DEBUG_NIC |
---|
866 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc()" |
---|
867 | " allocates container in cluster[%d,%d]\n" |
---|
868 | " vaddr = %x / paddr = %l\n", |
---|
869 | thread , cx , cy , vaddr , cont_paddr ); |
---|
870 | #endif |
---|
871 | } |
---|
872 | } |
---|
873 | |
---|
874 | // complete kernel chbuf initialisation |
---|
875 | if ( is_rx ) |
---|
876 | { |
---|
877 | _nic_rx_chbuf[nic_channel].xmax = xmax; |
---|
878 | _nic_rx_chbuf[nic_channel].ymax = ymax; |
---|
879 | } |
---|
880 | else |
---|
881 | { |
---|
882 | _nic_tx_chbuf[nic_channel].xmax = xmax; |
---|
883 | _nic_tx_chbuf[nic_channel].ymax = ymax; |
---|
884 | } |
---|
885 | |
---|
886 | // compute the NIC chbuf descriptor physical address |
---|
887 | unsigned int offset; |
---|
888 | if ( is_rx ) offset = 0x4000; |
---|
889 | else offset = 0x4080; |
---|
890 | nic_chbuf_pbase = (((unsigned long long)((X_IO << Y_WIDTH) + Y_IO))<<32) | |
---|
891 | (SEG_NIC_BASE + (nic_channel<<15) + offset); |
---|
892 | |
---|
893 | #if GIET_DEBUG_NIC |
---|
894 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get NIC chbuf : paddr = %l\n", |
---|
895 | thread , nic_chbuf_pbase ); |
---|
896 | #endif |
---|
897 | |
---|
898 | // compute the kernel chbuf descriptor physical address |
---|
899 | if ( is_rx ) vaddr = (unsigned int)( &_nic_rx_chbuf[nic_channel] ); |
---|
900 | else vaddr = (unsigned int)( &_nic_tx_chbuf[nic_channel] ); |
---|
901 | |
---|
902 | ker_chbuf_pbase = _v2p_translate( vaddr , &flags ); |
---|
903 | |
---|
904 | #if GIET_DEBUG_NIC |
---|
905 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get kernel chbuf\n" |
---|
906 | " vaddr = %x / paddr = %l\n", |
---|
907 | thread , vaddr , ker_chbuf_pbase ); |
---|
908 | #endif |
---|
909 | |
---|
910 | // sync the kernel chbuf in L2 after write in L2 |
---|
911 | _mmc_sync( ker_chbuf_pbase, sizeof( nic_chbuf_t ) ); |
---|
912 | |
---|
913 | // initializes CMA registers defining the source & destination chbufs |
---|
914 | if ( is_rx ) // NIC to kernel |
---|
915 | { |
---|
916 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
917 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
918 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, 2 ); |
---|
919 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
920 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
921 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, xmax * ymax ); |
---|
922 | } |
---|
923 | else // kernel to NIC |
---|
924 | { |
---|
925 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
926 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
927 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, xmax * ymax ); |
---|
928 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
929 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
930 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, 2 ); |
---|
931 | } |
---|
932 | |
---|
933 | #if GIET_DEBUG_NIC |
---|
934 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_alloc() at cycle %d\n", |
---|
935 | thread, _get_proctime() ); |
---|
936 | #endif |
---|
937 | |
---|
938 | return nic_channel; |
---|
939 | } // end _sys_nic_alloc() |
---|
940 | |
---|
941 | |
---|
942 | //////////////////////////////////////// |
---|
943 | int _sys_nic_start( unsigned int is_rx, |
---|
944 | unsigned int channel ) |
---|
945 | { |
---|
946 | unsigned int nic_channel; |
---|
947 | unsigned int cma_channel; |
---|
948 | |
---|
949 | // get NIC channel index and CMA channel index from task context |
---|
950 | if ( is_rx ) |
---|
951 | { |
---|
952 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
953 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
954 | } |
---|
955 | else |
---|
956 | { |
---|
957 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
958 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
959 | } |
---|
960 | |
---|
961 | #if GIET_DEBUG_NIC |
---|
962 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
963 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_start() at cycle %d\n" |
---|
964 | " get NIC channel = %d / CMA channel = %d\n", |
---|
965 | thread, _get_proctime(), nic_channel, cma_channel ); |
---|
966 | #endif |
---|
967 | |
---|
968 | // check NIC and CMA channels index |
---|
969 | if ( nic_channel != channel ) |
---|
970 | { |
---|
971 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal NIC channel\n"); |
---|
972 | return -1; |
---|
973 | } |
---|
974 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
975 | { |
---|
976 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal CMA channel\n"); |
---|
977 | return -1; |
---|
978 | } |
---|
979 | |
---|
980 | // start CMA transfer |
---|
981 | _cma_set_register( cma_channel, CHBUF_BUF_SIZE , NIC_CONTAINER_SIZE ); |
---|
982 | _cma_set_register( cma_channel, CHBUF_PERIOD , 0 ); // OUT_OF_ORDER |
---|
983 | _cma_set_register( cma_channel, CHBUF_RUN , 1 ); |
---|
984 | |
---|
985 | // activates NIC channel |
---|
986 | _nic_channel_start( nic_channel, is_rx, GIET_NIC_MAC4, GIET_NIC_MAC2 ); |
---|
987 | |
---|
988 | #if GIET_DEBUG_NIC |
---|
989 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_start() at cycle %d\n", |
---|
990 | thread , _get_proctime() ); |
---|
991 | #endif |
---|
992 | |
---|
993 | return 0; |
---|
994 | } // end _sys_nic_start() |
---|
995 | |
---|
996 | |
---|
997 | ////////////////////////////////////// |
---|
998 | int _sys_nic_move( unsigned int is_rx, |
---|
999 | unsigned int channel, |
---|
1000 | void* buffer ) |
---|
1001 | { |
---|
1002 | |
---|
1003 | #if GIET_DEBUG_NIC |
---|
1004 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
1005 | _printf("\n[GIET DEBUG NIC] Task %d enters _sys_nic_move() at cycle %d\n", |
---|
1006 | thread , _get_proctime() ); |
---|
1007 | #endif |
---|
1008 | |
---|
1009 | // check NIC channel index |
---|
1010 | if ( channel >= NB_NIC_CHANNELS ) |
---|
1011 | { |
---|
1012 | _printf("\n[GIET_ERROR] in _sys_nic_move() : illegal NIC channel index\n"); |
---|
1013 | return -1; |
---|
1014 | } |
---|
1015 | |
---|
1016 | // get kernel chbuf virtual address |
---|
1017 | nic_chbuf_t* chbuf; |
---|
1018 | if ( is_rx ) chbuf = &_nic_rx_chbuf[channel]; |
---|
1019 | else chbuf = &_nic_tx_chbuf[channel]; |
---|
1020 | |
---|
1021 | // get xmax / ymax parameters |
---|
1022 | unsigned int xmax = chbuf->xmax; |
---|
1023 | unsigned int ymax = chbuf->ymax; |
---|
1024 | |
---|
1025 | // get cluster coordinates for the processor running the calling task |
---|
1026 | unsigned int procid = _get_procid(); |
---|
1027 | unsigned int cx = procid >> (Y_WIDTH + P_WIDTH); |
---|
1028 | unsigned int cy = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
1029 | |
---|
1030 | // check processor coordinates / (xmax,ymax) |
---|
1031 | if ( cx >= xmax ) |
---|
1032 | { |
---|
1033 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor X coordinate = %d" |
---|
1034 | " / xmax = %d\n", cx , xmax ); |
---|
1035 | return -1; |
---|
1036 | } |
---|
1037 | if ( cy >= ymax ) |
---|
1038 | { |
---|
1039 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor Y coordinate = %d" |
---|
1040 | " / ymax = %d\n", cy , ymax ); |
---|
1041 | return -1; |
---|
1042 | } |
---|
1043 | |
---|
1044 | unsigned long long user_buffer_paddr; // user buffer physical address |
---|
1045 | unsigned long long kernel_buffer_paddr; // kernel buffer physical address |
---|
1046 | unsigned long long kernel_chbuf_paddr; // kernel chbuf physical address |
---|
1047 | unsigned long long buffer_descriptor; // kernel buffer descriptor |
---|
1048 | unsigned long long buffer_desc_paddr; // kernel buffer descriptor paddr |
---|
1049 | unsigned int index; // kernel buffer index in chbuf |
---|
1050 | unsigned int flags; // for _v2P_translate |
---|
1051 | |
---|
1052 | // Compute user buffer physical address and check access rights |
---|
1053 | user_buffer_paddr = _v2p_translate( (unsigned int)buffer , &flags ); |
---|
1054 | |
---|
1055 | if ( (flags & PTE_U) == 0 ) |
---|
1056 | { |
---|
1057 | _printf("\n[GIET ERROR] in _sys_nic_tx_move() : illegal buffer address\n"); |
---|
1058 | return -1; |
---|
1059 | } |
---|
1060 | |
---|
1061 | #if GIET_DEBUG_NIC |
---|
1062 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() get user buffer : paddr = %l\n", |
---|
1063 | thread, user_buffer_paddr ); |
---|
1064 | #endif |
---|
1065 | |
---|
1066 | // compute kernel chbuf physical address (required for sync) |
---|
1067 | kernel_chbuf_paddr = _v2p_translate( (unsigned int)chbuf , &flags ); |
---|
1068 | |
---|
1069 | // poll local kernel container status until success |
---|
1070 | while ( 1 ) |
---|
1071 | { |
---|
1072 | // compute buffer index and buffer descriptor paddr |
---|
1073 | index = (ymax * cx) + cy; |
---|
1074 | buffer_desc_paddr = kernel_chbuf_paddr + (index<<6); |
---|
1075 | |
---|
1076 | // inval buffer descriptor in L2 before read in L2 |
---|
1077 | _mmc_inval( buffer_desc_paddr , 8 ); |
---|
1078 | buffer_descriptor = chbuf->buffer[index].desc; |
---|
1079 | |
---|
1080 | #if GIET_DEBUG_NIC |
---|
1081 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() read buf_desc %d at cycle %d\n" |
---|
1082 | " paddr = %l / buffer descriptor = %l\n", |
---|
1083 | thread, index, _get_proctime(), buffer_desc_paddr, buffer_descriptor ); |
---|
1084 | #endif |
---|
1085 | |
---|
1086 | // test buffer status and break if found |
---|
1087 | if ( ( is_rx != 0 ) && (buffer_descriptor >> 63) == 1 ) break; |
---|
1088 | if ( ( is_rx == 0 ) && (buffer_descriptor >> 63) == 0 ) break; |
---|
1089 | } |
---|
1090 | |
---|
1091 | // compute kernel buffer physical address |
---|
1092 | kernel_buffer_paddr = buffer_descriptor & 0x0000FFFFFFFFFFFFULL; |
---|
1093 | |
---|
1094 | // move one container |
---|
1095 | if ( is_rx ) // RX transfer |
---|
1096 | { |
---|
1097 | // inval kernel buffer in L2 before read in L2 |
---|
1098 | _mmc_inval( kernel_buffer_paddr, NIC_CONTAINER_SIZE ); |
---|
1099 | |
---|
1100 | // transfer data from kernel buffer to user buffer |
---|
1101 | _physical_memcpy( user_buffer_paddr, |
---|
1102 | kernel_buffer_paddr, |
---|
1103 | NIC_CONTAINER_SIZE ); |
---|
1104 | #if GIET_DEBUG_NIC |
---|
1105 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer kernel buffer %l\n" |
---|
1106 | " to user buffer %l at cycle %d\n", |
---|
1107 | thread , kernel_buffer_paddr , user_buffer_paddr , _get_proctime() ); |
---|
1108 | #endif |
---|
1109 | |
---|
1110 | } |
---|
1111 | else // TX transfer |
---|
1112 | { |
---|
1113 | // transfer data from user buffer to kernel buffer |
---|
1114 | _physical_memcpy( kernel_buffer_paddr, |
---|
1115 | user_buffer_paddr, |
---|
1116 | NIC_CONTAINER_SIZE ); |
---|
1117 | |
---|
1118 | // sync kernel buffer in L2 after write in L2 |
---|
1119 | _mmc_sync( kernel_buffer_paddr, NIC_CONTAINER_SIZE ); |
---|
1120 | |
---|
1121 | #if GIET_DEBUG_NIC |
---|
1122 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer " |
---|
1123 | "user buffer %l to kernel buffer %l at cycle %d\n", |
---|
1124 | thread , user_buffer_paddr , kernel_buffer_paddr , _get_proctime() ); |
---|
1125 | #endif |
---|
1126 | |
---|
1127 | } |
---|
1128 | |
---|
1129 | // update kernel chbuf status |
---|
1130 | if ( is_rx ) chbuf->buffer[index].desc = kernel_buffer_paddr & 0x0000FFFFFFFFFFFFULL; |
---|
1131 | else chbuf->buffer[index].desc = kernel_buffer_paddr | 0x8000000000000000ULL; |
---|
1132 | |
---|
1133 | // sync kernel chbuf in L2 after write in L2 |
---|
1134 | _mmc_sync( kernel_chbuf_paddr + (index<<6) , 8 ); |
---|
1135 | |
---|
1136 | #if GIET_DEBUG_NIC |
---|
1137 | _printf("\n[GIET DEBUG NIC] Task %d get buffer %d and exit _sys_nic_move() at cycle %d\n", |
---|
1138 | thread , index , _get_proctime() ); |
---|
1139 | #endif |
---|
1140 | |
---|
1141 | return 0; |
---|
1142 | } // end _sys_nic_move() |
---|
1143 | |
---|
1144 | |
---|
1145 | //////////////////////////////////////// |
---|
1146 | int _sys_nic_stop( unsigned int is_rx, |
---|
1147 | unsigned int channel ) |
---|
1148 | { |
---|
1149 | unsigned int nic_channel; |
---|
1150 | unsigned int cma_channel; |
---|
1151 | |
---|
1152 | // get NIC channel index and CMA channel index |
---|
1153 | if ( is_rx ) |
---|
1154 | { |
---|
1155 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1156 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
1157 | } |
---|
1158 | else |
---|
1159 | { |
---|
1160 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1161 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
1162 | } |
---|
1163 | |
---|
1164 | // check NIC and CMA channels index |
---|
1165 | if ( nic_channel != channel ) |
---|
1166 | { |
---|
1167 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal NIC channel\n"); |
---|
1168 | return -1; |
---|
1169 | } |
---|
1170 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
1171 | { |
---|
1172 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal CMA channel\n"); |
---|
1173 | return -1; |
---|
1174 | } |
---|
1175 | |
---|
1176 | // desactivates the NIC channel |
---|
1177 | _nic_channel_stop( nic_channel, is_rx ); |
---|
1178 | |
---|
1179 | // desactivates the CMA channel |
---|
1180 | _cma_set_register( cma_channel, CHBUF_RUN , 0 ); |
---|
1181 | |
---|
1182 | return 0; |
---|
1183 | } // end _sys_nic_stop() |
---|
1184 | |
---|
1185 | //////////////////////////////////////// |
---|
1186 | int _sys_nic_clear( unsigned int is_rx, |
---|
1187 | unsigned int channel ) |
---|
1188 | { |
---|
1189 | unsigned int nic_channel; |
---|
1190 | |
---|
1191 | // get NIC channel |
---|
1192 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1193 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1194 | |
---|
1195 | if ( nic_channel != channel ) |
---|
1196 | { |
---|
1197 | _printf("\n[GIET_ERROR] in _sys_nic_clear(): illegal NIC channel\n"); |
---|
1198 | return -1; |
---|
1199 | } |
---|
1200 | |
---|
1201 | if ( is_rx ) |
---|
1202 | { |
---|
1203 | _nic_set_global_register( NIC_G_NPKT_RX_G2S_RECEIVED , 0 ); |
---|
1204 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL , 0 ); |
---|
1205 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_BIG , 0 ); |
---|
1206 | _nic_set_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL , 0 ); |
---|
1207 | _nic_set_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL , 0 ); |
---|
1208 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_RECEIVED , 0 ); |
---|
1209 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST , 0 ); |
---|
1210 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL , 0 ); |
---|
1211 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL , 0 ); |
---|
1212 | } |
---|
1213 | else |
---|
1214 | { |
---|
1215 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED , 0 ); |
---|
1216 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TRANSMIT , 0 ); |
---|
1217 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG , 0 ); |
---|
1218 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL , 0 ); |
---|
1219 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL , 0 ); |
---|
1220 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS , 0 ); |
---|
1221 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST , 0 ); |
---|
1222 | } |
---|
1223 | return 0; |
---|
1224 | } // en _sys_nic_clear() |
---|
1225 | |
---|
1226 | //////////////////////////////////////// |
---|
1227 | int _sys_nic_stats( unsigned int is_rx, |
---|
1228 | unsigned int channel ) |
---|
1229 | { |
---|
1230 | unsigned int nic_channel; |
---|
1231 | |
---|
1232 | // get NIC channel |
---|
1233 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1234 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1235 | |
---|
1236 | if ( nic_channel != channel ) |
---|
1237 | { |
---|
1238 | _printf("\n[GIET_ERROR] in _sys_nic_stats(): illegal NIC channel\n"); |
---|
1239 | return -1; |
---|
1240 | } |
---|
1241 | |
---|
1242 | if ( is_rx ) |
---|
1243 | { |
---|
1244 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_RX_G2S_RECEIVED ); |
---|
1245 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL ); |
---|
1246 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_BIG ); |
---|
1247 | unsigned int fifo_full = _nic_get_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL ); |
---|
1248 | unsigned int crc_fail = _nic_get_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL ); |
---|
1249 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST ); |
---|
1250 | unsigned int dst_fail = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL ); |
---|
1251 | unsigned int ch_full = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL ); |
---|
1252 | |
---|
1253 | _printf("\n### Network Controller RX Statistics ###\n" |
---|
1254 | "- packets received : %d\n" |
---|
1255 | "- too small : %d\n" |
---|
1256 | "- too big : %d\n" |
---|
1257 | "- fifo full : %d\n" |
---|
1258 | "- crc fail : %d\n" |
---|
1259 | "- dst mac fail : %d\n" |
---|
1260 | "- channel full : %d\n" |
---|
1261 | "- broadcast : %d\n", |
---|
1262 | received, |
---|
1263 | too_small, |
---|
1264 | too_big, |
---|
1265 | fifo_full, |
---|
1266 | crc_fail, |
---|
1267 | dst_fail, |
---|
1268 | ch_full, |
---|
1269 | broadcast ); |
---|
1270 | } |
---|
1271 | else |
---|
1272 | { |
---|
1273 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED ); |
---|
1274 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG ); |
---|
1275 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL ); |
---|
1276 | unsigned int src_fail = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL ); |
---|
1277 | unsigned int bypass = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS ); |
---|
1278 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST ); |
---|
1279 | |
---|
1280 | _printf("\n### Network Controller TX Statistics ###\n" |
---|
1281 | "- packets received : %d\n" |
---|
1282 | "- too small : %d\n" |
---|
1283 | "- too big : %d\n" |
---|
1284 | "- src mac fail : %d\n" |
---|
1285 | "- bypass : %d\n" |
---|
1286 | "- broadcast : %d\n", |
---|
1287 | received, |
---|
1288 | too_big, |
---|
1289 | too_small, |
---|
1290 | src_fail, |
---|
1291 | bypass, |
---|
1292 | broadcast ); |
---|
1293 | } |
---|
1294 | return 0; |
---|
1295 | } // end _sys_nic_stats() |
---|
1296 | |
---|
1297 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1298 | // FBF related syscall handlers |
---|
1299 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1300 | |
---|
1301 | ///////////////////////////////////////////// |
---|
1302 | int _sys_fbf_sync_write( unsigned int offset, |
---|
1303 | void* buffer, |
---|
1304 | unsigned int length ) |
---|
1305 | { |
---|
1306 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
1307 | memcpy( fbf_address, buffer, length); |
---|
1308 | |
---|
1309 | return 0; |
---|
1310 | } |
---|
1311 | |
---|
1312 | ///////////////////////////////////////////// |
---|
1313 | int _sys_fbf_sync_read( unsigned int offset, |
---|
1314 | void* buffer, |
---|
1315 | unsigned int length ) |
---|
1316 | { |
---|
1317 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
1318 | memcpy( buffer, fbf_address, length); |
---|
1319 | |
---|
1320 | return 0; |
---|
1321 | } |
---|
1322 | |
---|
1323 | //////////////////////// |
---|
1324 | int _sys_fbf_cma_alloc() |
---|
1325 | { |
---|
1326 | // get a new CMA channel index |
---|
1327 | unsigned int channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
---|
1328 | |
---|
1329 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1330 | { |
---|
1331 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : not enough CMA channels\n"); |
---|
1332 | return -1; |
---|
1333 | } |
---|
1334 | else |
---|
1335 | { |
---|
1336 | _set_context_slot( CTX_CMA_FB_ID, channel ); |
---|
1337 | return 0; |
---|
1338 | } |
---|
1339 | } // end sys_fbf_cma_alloc() |
---|
1340 | |
---|
1341 | //////////////////////////////////////////// |
---|
1342 | int _sys_fbf_cma_start( void* vbase0, |
---|
1343 | void* vbase1, |
---|
1344 | unsigned int length ) |
---|
1345 | { |
---|
1346 | #if NB_CMA_CHANNELS > 0 |
---|
1347 | |
---|
1348 | unsigned int vaddr; // virtual address |
---|
1349 | unsigned int flags; // for _v2p_translate() |
---|
1350 | |
---|
1351 | // get channel index |
---|
1352 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1353 | |
---|
1354 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1355 | { |
---|
1356 | _printf("\n[GIET ERROR] in _fbf_cma_start() : CMA channel index too large\n"); |
---|
1357 | return -1; |
---|
1358 | } |
---|
1359 | |
---|
1360 | #if GIET_DEBUG_FBF_CMA |
---|
1361 | _printf("\n[FBF_CMA DEBUG] enters _sys_fbf_cma_start()\n" |
---|
1362 | " - channel = %d\n" |
---|
1363 | " - buf0 vbase = %x\n" |
---|
1364 | " - buf1 vbase = %x\n" |
---|
1365 | " - buffer size = %x\n", |
---|
1366 | channel, |
---|
1367 | (unsigned int)vbase0, |
---|
1368 | (unsigned int)vbase1, |
---|
1369 | length ); |
---|
1370 | #endif |
---|
1371 | |
---|
1372 | // checking user buffers virtual addresses and length alignment |
---|
1373 | if ( ((unsigned int)vbase0 & 0x3) || |
---|
1374 | ((unsigned int)vbase1 & 0x3) || |
---|
1375 | (length & 0x3) ) |
---|
1376 | { |
---|
1377 | _printf("\n[GIET ERROR] in _fbf_cma_start() : user buffer not aligned\n"); |
---|
1378 | return -1; |
---|
1379 | } |
---|
1380 | |
---|
1381 | // compute frame buffer physical address and initialize _fbf_chbuf[channel] |
---|
1382 | vaddr = (unsigned int)SEG_FBF_BASE; |
---|
1383 | _fbf_chbuf[channel].fbf.desc = _v2p_translate( vaddr , &flags ); |
---|
1384 | |
---|
1385 | // Compute user buffer 0 physical addresses and intialize _fbf_chbuf[channel] |
---|
1386 | vaddr = (unsigned int)vbase0; |
---|
1387 | _fbf_chbuf[channel].buf0.desc = _v2p_translate( vaddr , &flags ); |
---|
1388 | |
---|
1389 | if ((flags & PTE_U) == 0) |
---|
1390 | { |
---|
1391 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf0 not in user space\n"); |
---|
1392 | return -1; |
---|
1393 | } |
---|
1394 | |
---|
1395 | // Compute user buffer 1 physical addresses and intialize _fbf_chbuf[channel] |
---|
1396 | vaddr = (unsigned int)vbase1; |
---|
1397 | _fbf_chbuf[channel].buf1.desc = _v2p_translate( vaddr , &flags ); |
---|
1398 | |
---|
1399 | if ((flags & PTE_U) == 0) |
---|
1400 | { |
---|
1401 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf1 not in user space\n"); |
---|
1402 | return -1; |
---|
1403 | } |
---|
1404 | |
---|
1405 | // initializes buffer length |
---|
1406 | _fbf_chbuf[channel].length = length; |
---|
1407 | |
---|
1408 | // Compute and register physical adress of the fbf_chbuf descriptor |
---|
1409 | vaddr = (unsigned int)&_fbf_chbuf[channel]; |
---|
1410 | _fbf_chbuf_paddr[channel] = _v2p_translate( vaddr , &flags ); |
---|
1411 | |
---|
1412 | if ( USE_IOB ) |
---|
1413 | { |
---|
1414 | // SYNC request for fbf_chbuf descriptor |
---|
1415 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof( fbf_chbuf_t ) ); |
---|
1416 | } |
---|
1417 | |
---|
1418 | #if GIET_DEBUG_FBF_CMA |
---|
1419 | _printf(" - fbf pbase = %l\n" |
---|
1420 | " - buf0 pbase = %l\n" |
---|
1421 | " - buf1 pbase = %l\n" |
---|
1422 | " - chbuf pbase = %l\n", |
---|
1423 | _fbf_chbuf[channel].fbf.desc, |
---|
1424 | _fbf_chbuf[channel].buf0.desc, |
---|
1425 | _fbf_chbuf[channel].buf1.desc, |
---|
1426 | _fbf_chbuf_paddr[channel] ); |
---|
1427 | #endif |
---|
1428 | |
---|
1429 | // start CMA transfer |
---|
1430 | unsigned long long paddr = _fbf_chbuf_paddr[channel]; |
---|
1431 | unsigned int src_chbuf_paddr_lsb = (unsigned int)(paddr & 0xFFFFFFFF); |
---|
1432 | unsigned int src_chbuf_paddr_ext = (unsigned int)(paddr >> 32); |
---|
1433 | unsigned int dst_chbuf_paddr_lsb = src_chbuf_paddr_lsb + 128; |
---|
1434 | unsigned int dst_chbuf_paddr_ext = src_chbuf_paddr_ext; |
---|
1435 | |
---|
1436 | _cma_set_register( channel, CHBUF_SRC_DESC , src_chbuf_paddr_lsb ); |
---|
1437 | _cma_set_register( channel, CHBUF_SRC_EXT , src_chbuf_paddr_ext ); |
---|
1438 | _cma_set_register( channel, CHBUF_SRC_NBUFS, 2 ); |
---|
1439 | _cma_set_register( channel, CHBUF_DST_DESC , dst_chbuf_paddr_lsb ); |
---|
1440 | _cma_set_register( channel, CHBUF_DST_EXT , dst_chbuf_paddr_ext ); |
---|
1441 | _cma_set_register( channel, CHBUF_DST_NBUFS, 1 ); |
---|
1442 | _cma_set_register( channel, CHBUF_BUF_SIZE , length ); |
---|
1443 | _cma_set_register( channel, CHBUF_PERIOD , 300 ); |
---|
1444 | _cma_set_register( channel, CHBUF_RUN , 1 ); |
---|
1445 | |
---|
1446 | return 0; |
---|
1447 | |
---|
1448 | #else |
---|
1449 | |
---|
1450 | _printf("\n[GIET ERROR] in _sys_fbf_cma_start() : NB_CMA_CHANNELS = 0\n"); |
---|
1451 | return -1; |
---|
1452 | |
---|
1453 | #endif |
---|
1454 | } // end _sys_fbf_cma_start() |
---|
1455 | |
---|
1456 | ///////////////////////////////////////////////////// |
---|
1457 | int _sys_fbf_cma_display( unsigned int buffer_index ) |
---|
1458 | { |
---|
1459 | #if NB_CMA_CHANNELS > 0 |
---|
1460 | |
---|
1461 | volatile unsigned int full = 1; |
---|
1462 | |
---|
1463 | // get channel index |
---|
1464 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1465 | |
---|
1466 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1467 | { |
---|
1468 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
---|
1469 | "CMA channel index too large\n"); |
---|
1470 | return -1; |
---|
1471 | } |
---|
1472 | |
---|
1473 | // get fbf_chbuf descriptor pointer |
---|
1474 | fbf_chbuf_t* pdesc = &_fbf_chbuf[channel]; |
---|
1475 | |
---|
1476 | #if GIET_DEBUG_FBF_CMA |
---|
1477 | _printf("\n[FBF_CMA DEBUG] enters _sys_fb_cma_display()\n" |
---|
1478 | " - cma channel = %d\n" |
---|
1479 | " - buffer index = %d\n" |
---|
1480 | " - buf0_desc value = %l\n" |
---|
1481 | " - buf1_desc value = %l\n" |
---|
1482 | " - fbf_desc value = %l\n", |
---|
1483 | channel , buffer_index, |
---|
1484 | _fbf_chbuf[channel].buf0.desc, |
---|
1485 | _fbf_chbuf[channel].buf1.desc, |
---|
1486 | _fbf_chbuf[channel].fbf.desc ); |
---|
1487 | #endif |
---|
1488 | |
---|
1489 | if ( buffer_index == 0 ) // user buffer 0 |
---|
1490 | { |
---|
1491 | // INVAL L1 and L2 cache copies of user buffer descriptor, |
---|
1492 | // because it has been modified in RAM by the CMA component |
---|
1493 | _dcache_buf_invalidate( (unsigned int)pdesc , sizeof(buffer_descriptor_t) ); |
---|
1494 | _mmc_inval( _fbf_chbuf_paddr[channel] , sizeof(buffer_descriptor_t) ); |
---|
1495 | |
---|
1496 | // waiting user buffer released by the CMA component) |
---|
1497 | while ( full ) |
---|
1498 | { |
---|
1499 | full = (unsigned int)(pdesc->buf0.desc >> 63); |
---|
1500 | } |
---|
1501 | |
---|
1502 | // SYNC request for the user buffer, because |
---|
1503 | // it will be read from XRAM by the CMA component |
---|
1504 | _mmc_sync( pdesc->buf0.desc , pdesc->length ); |
---|
1505 | |
---|
1506 | // set user buffer status |
---|
1507 | pdesc->buf0.desc = pdesc->buf0.desc | 0x8000000000000000ULL; |
---|
1508 | |
---|
1509 | // reset fbf buffer status |
---|
1510 | pdesc->fbf.desc = pdesc->fbf.desc & 0x7FFFFFFFFFFFFFFFULL; |
---|
1511 | |
---|
1512 | // SYNC request, because these buffer descriptors |
---|
1513 | // will be read from XRAM by the CMA component |
---|
1514 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof(fbf_chbuf_t) ); |
---|
1515 | } |
---|
1516 | else // user buffer 1 |
---|
1517 | { |
---|
1518 | // INVAL L1 and L2 cache copies of user buffer descriptor, |
---|
1519 | // because it has been modified in RAM by the CMA component |
---|
1520 | _dcache_buf_invalidate( (unsigned int)pdesc + 64, sizeof(buffer_descriptor_t) ); |
---|
1521 | _mmc_inval( _fbf_chbuf_paddr[channel] + 64, sizeof(buffer_descriptor_t) ); |
---|
1522 | |
---|
1523 | // waiting user buffer released by the CMA component) |
---|
1524 | while ( full ) |
---|
1525 | { |
---|
1526 | full = (unsigned int)(pdesc->buf1.desc >> 63); |
---|
1527 | } |
---|
1528 | |
---|
1529 | // SYNC request for the user buffer, because |
---|
1530 | // it will be read from XRAM by the CMA component |
---|
1531 | _mmc_sync( pdesc->buf1.desc , pdesc->length ); |
---|
1532 | |
---|
1533 | // set user buffer status |
---|
1534 | pdesc->buf1.desc = pdesc->buf1.desc | 0x8000000000000000ULL; |
---|
1535 | |
---|
1536 | // reset fbf buffer status |
---|
1537 | pdesc->fbf.desc = pdesc->fbf.desc & 0x7FFFFFFFFFFFFFFFULL; |
---|
1538 | |
---|
1539 | // SYNC request, because these buffer descriptors |
---|
1540 | // will be read from XRAM by the CMA component |
---|
1541 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof(fbf_chbuf_t) ); |
---|
1542 | } |
---|
1543 | |
---|
1544 | #if GIET_DEBUG_FBF_CMA |
---|
1545 | _printf("\n[FBF_CMA DEBUG] exit _sys_fb_cma_display()\n" |
---|
1546 | " - buf0_desc value = %l\n" |
---|
1547 | " - buf1_desc value = %l\n" |
---|
1548 | " - fbf_desc value = %l\n", |
---|
1549 | _fbf_chbuf[channel].buf0.desc, |
---|
1550 | _fbf_chbuf[channel].buf1.desc, |
---|
1551 | _fbf_chbuf[channel].fbf.desc ); |
---|
1552 | #endif |
---|
1553 | |
---|
1554 | return 0; |
---|
1555 | |
---|
1556 | #else |
---|
1557 | |
---|
1558 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : no CMA channel allocated\n"); |
---|
1559 | return -1; |
---|
1560 | |
---|
1561 | #endif |
---|
1562 | } // end _sys_fbf_cma_display() |
---|
1563 | |
---|
1564 | |
---|
1565 | /////////////////////// |
---|
1566 | int _sys_fbf_cma_stop() |
---|
1567 | { |
---|
1568 | #if NB_CMA_CHANNELS > 0 |
---|
1569 | |
---|
1570 | // get channel index |
---|
1571 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1572 | |
---|
1573 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1574 | { |
---|
1575 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : CMA channel index too large\n"); |
---|
1576 | return -1; |
---|
1577 | } |
---|
1578 | |
---|
1579 | // Desactivate CMA channel |
---|
1580 | _cma_set_register( channel, CHBUF_RUN, 0 ); |
---|
1581 | |
---|
1582 | return 0; |
---|
1583 | |
---|
1584 | #else |
---|
1585 | |
---|
1586 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : no CMA channel allocated\n"); |
---|
1587 | return -1; |
---|
1588 | |
---|
1589 | #endif |
---|
1590 | } // end _sys_fbf_cma_stop() |
---|
1591 | |
---|
1592 | |
---|
1593 | ////////////////////////////////////////////////////////////////////////////// |
---|
1594 | // Miscelaneous syscall handlers |
---|
1595 | ////////////////////////////////////////////////////////////////////////////// |
---|
1596 | |
---|
1597 | /////////////// |
---|
1598 | int _sys_ukn() |
---|
1599 | { |
---|
1600 | _printf("\n[GIET ERROR] Undefined System Call / EPC = %x\n", _get_epc() ); |
---|
1601 | return -1; |
---|
1602 | } |
---|
1603 | |
---|
1604 | //////////////////////////////////// |
---|
1605 | int _sys_proc_xyp( unsigned int* x, |
---|
1606 | unsigned int* y, |
---|
1607 | unsigned int* p ) |
---|
1608 | { |
---|
1609 | unsigned int gpid = _get_procid(); // global processor index from CPO register |
---|
1610 | |
---|
1611 | *x = (gpid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
---|
1612 | *y = (gpid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
1613 | *p = gpid & ((1<<P_WIDTH)-1); |
---|
1614 | |
---|
1615 | return 0; |
---|
1616 | } |
---|
1617 | |
---|
1618 | ////////////////////////////////// |
---|
1619 | int _sys_task_exit( char* string ) |
---|
1620 | { |
---|
1621 | unsigned int date = _get_proctime(); |
---|
1622 | |
---|
1623 | unsigned int gpid = _get_procid(); |
---|
1624 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
1625 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
1626 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
1627 | unsigned int lpid = gpid & ((1<<P_WIDTH)-1); |
---|
1628 | |
---|
1629 | unsigned int task_id = _get_context_slot(CTX_LTID_ID); |
---|
1630 | |
---|
1631 | // print exit message |
---|
1632 | _printf("\n[GIET] Exit task %d on processor[%d,%d,%d] at cycle %d" |
---|
1633 | "\n Cause : %s\n\n", |
---|
1634 | task_id, x, y, lpid, date, string ); |
---|
1635 | |
---|
1636 | // goes to sleeping state |
---|
1637 | _set_context_slot(CTX_RUN_ID, 0); |
---|
1638 | |
---|
1639 | // deschedule |
---|
1640 | _sys_context_switch(); |
---|
1641 | |
---|
1642 | return 0; |
---|
1643 | } |
---|
1644 | |
---|
1645 | ///////////////////////// |
---|
1646 | int _sys_context_switch() |
---|
1647 | { |
---|
1648 | unsigned int save_sr; |
---|
1649 | |
---|
1650 | _it_disable( &save_sr ); |
---|
1651 | _ctx_switch(); |
---|
1652 | _it_restore( &save_sr ); |
---|
1653 | |
---|
1654 | return 0; |
---|
1655 | } |
---|
1656 | |
---|
1657 | //////////////////////// |
---|
1658 | int _sys_local_task_id() |
---|
1659 | { |
---|
1660 | return _get_context_slot(CTX_LTID_ID); |
---|
1661 | } |
---|
1662 | |
---|
1663 | ///////////////////////// |
---|
1664 | int _sys_global_task_id() |
---|
1665 | { |
---|
1666 | return _get_context_slot(CTX_GTID_ID); |
---|
1667 | } |
---|
1668 | |
---|
1669 | //////////////////// |
---|
1670 | int _sys_thread_id() |
---|
1671 | { |
---|
1672 | return _get_context_slot(CTX_TRDID_ID); |
---|
1673 | } |
---|
1674 | |
---|
1675 | //////////////////////////////////////////// |
---|
1676 | int _sys_procs_number( unsigned int* x_size, |
---|
1677 | unsigned int* y_size, |
---|
1678 | unsigned int* nprocs ) |
---|
1679 | { |
---|
1680 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
1681 | mapping_cluster_t * cluster = _get_cluster_base(header); |
---|
1682 | |
---|
1683 | unsigned int x; |
---|
1684 | unsigned int y; |
---|
1685 | unsigned int okmin = 1; |
---|
1686 | unsigned int okmax = 1; |
---|
1687 | |
---|
1688 | // compute max values |
---|
1689 | unsigned int xmax = header->x_size; |
---|
1690 | unsigned int ymax = header->y_size; |
---|
1691 | unsigned int procs = cluster[0].procs; |
---|
1692 | |
---|
1693 | // check the (ymax-1) lower rows |
---|
1694 | for ( y = 0 ; y < ymax-1 ; y++ ) |
---|
1695 | { |
---|
1696 | for ( x = 0 ; x < xmax ; x++ ) |
---|
1697 | { |
---|
1698 | if (cluster[x*ymax+y].procs != procs ) okmin = 0; |
---|
1699 | } |
---|
1700 | } |
---|
1701 | |
---|
1702 | // check the upper row |
---|
1703 | for ( x = 0 ; x < xmax ; x++ ) |
---|
1704 | { |
---|
1705 | if (cluster[x*ymax+ymax-1].procs != procs ) okmax = 0; |
---|
1706 | } |
---|
1707 | |
---|
1708 | // return values |
---|
1709 | if ( okmin && okmax ) |
---|
1710 | { |
---|
1711 | *x_size = xmax; |
---|
1712 | *y_size = ymax; |
---|
1713 | *nprocs = procs; |
---|
1714 | } |
---|
1715 | else if ( okmin ) |
---|
1716 | { |
---|
1717 | *x_size = xmax; |
---|
1718 | *y_size = ymax-1; |
---|
1719 | *nprocs = procs; |
---|
1720 | } |
---|
1721 | else |
---|
1722 | { |
---|
1723 | *x_size = 0; |
---|
1724 | *y_size = 0; |
---|
1725 | *nprocs = 0; |
---|
1726 | } |
---|
1727 | return 0; |
---|
1728 | } |
---|
1729 | |
---|
1730 | /////////////////////////////////////////////////////// |
---|
1731 | int _sys_vseg_get_vbase( char* vspace_name, |
---|
1732 | char* vseg_name, |
---|
1733 | unsigned int* vbase ) |
---|
1734 | { |
---|
1735 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
1736 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
1737 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
1738 | |
---|
1739 | unsigned int vspace_id; |
---|
1740 | unsigned int vseg_id; |
---|
1741 | |
---|
1742 | // scan vspaces |
---|
1743 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
1744 | { |
---|
1745 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
---|
1746 | { |
---|
1747 | // scan vsegs |
---|
1748 | for (vseg_id = vspace[vspace_id].vseg_offset; |
---|
1749 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
---|
1750 | vseg_id++) |
---|
1751 | { |
---|
1752 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
---|
1753 | { |
---|
1754 | *vbase = vseg[vseg_id].vbase; |
---|
1755 | return 0; |
---|
1756 | } |
---|
1757 | } |
---|
1758 | } |
---|
1759 | } |
---|
1760 | return -1; // not found |
---|
1761 | } |
---|
1762 | |
---|
1763 | ///////////////////////////////////////////////////////// |
---|
1764 | int _sys_vseg_get_length( char* vspace_name, |
---|
1765 | char* vseg_name, |
---|
1766 | unsigned int* length ) |
---|
1767 | { |
---|
1768 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
1769 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
1770 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
1771 | |
---|
1772 | unsigned int vspace_id; |
---|
1773 | unsigned int vseg_id; |
---|
1774 | |
---|
1775 | // scan vspaces |
---|
1776 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
1777 | { |
---|
1778 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
---|
1779 | { |
---|
1780 | // scan vsegs |
---|
1781 | for (vseg_id = vspace[vspace_id].vseg_offset; |
---|
1782 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
---|
1783 | vseg_id++) |
---|
1784 | { |
---|
1785 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
---|
1786 | { |
---|
1787 | *length = vseg[vseg_id].length; |
---|
1788 | return 0; |
---|
1789 | } |
---|
1790 | } |
---|
1791 | } |
---|
1792 | } |
---|
1793 | return -1; // not found |
---|
1794 | } |
---|
1795 | |
---|
1796 | //////////////////////////////////////// |
---|
1797 | int _sys_xy_from_ptr( void* ptr, |
---|
1798 | unsigned int* x, |
---|
1799 | unsigned int* y ) |
---|
1800 | { |
---|
1801 | unsigned int flags; |
---|
1802 | unsigned long long paddr = _v2p_translate( (unsigned int)ptr , &flags ); |
---|
1803 | |
---|
1804 | *x = (paddr>>36) & 0xF; |
---|
1805 | *y = (paddr>>32) & 0xF; |
---|
1806 | |
---|
1807 | return 0; |
---|
1808 | } |
---|
1809 | |
---|
1810 | ///////////////////////////////////////// |
---|
1811 | int _sys_heap_info( unsigned int* vaddr, |
---|
1812 | unsigned int* length, |
---|
1813 | unsigned int x, |
---|
1814 | unsigned int y ) |
---|
1815 | { |
---|
1816 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
1817 | mapping_task_t * task = _get_task_base(header); |
---|
1818 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
1819 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
1820 | |
---|
1821 | unsigned int task_id; |
---|
1822 | unsigned int vspace_id; |
---|
1823 | unsigned int vseg_id = 0xFFFFFFFF; |
---|
1824 | |
---|
1825 | // searching the heap vseg |
---|
1826 | if ( (x < X_SIZE) && (y < Y_SIZE) ) // searching a task in cluster(x,y) |
---|
1827 | { |
---|
1828 | // get vspace global index |
---|
1829 | vspace_id = _get_context_slot(CTX_VSID_ID); |
---|
1830 | |
---|
1831 | // scan all tasks in vspace |
---|
1832 | unsigned int min = vspace[vspace_id].task_offset ; |
---|
1833 | unsigned int max = min + vspace[vspace_id].tasks ; |
---|
1834 | for ( task_id = min ; task_id < max ; task_id++ ) |
---|
1835 | { |
---|
1836 | if ( task[task_id].clusterid == (x * Y_SIZE + y) ) |
---|
1837 | { |
---|
1838 | vseg_id = task[task_id].heap_vseg_id; |
---|
1839 | if ( vseg_id != 0xFFFFFFFF ) break; |
---|
1840 | } |
---|
1841 | } |
---|
1842 | } |
---|
1843 | else // searching in the calling task |
---|
1844 | { |
---|
1845 | task_id = _get_context_slot(CTX_GTID_ID); |
---|
1846 | vseg_id = task[task_id].heap_vseg_id; |
---|
1847 | } |
---|
1848 | |
---|
1849 | // analysing the vseg_id |
---|
1850 | if ( vseg_id != 0xFFFFFFFF ) |
---|
1851 | { |
---|
1852 | *vaddr = vseg[vseg_id].vbase; |
---|
1853 | *length = vseg[vseg_id].length; |
---|
1854 | return 0; |
---|
1855 | } |
---|
1856 | else |
---|
1857 | { |
---|
1858 | *vaddr = 0; |
---|
1859 | *length = 0; |
---|
1860 | return -1; |
---|
1861 | } |
---|
1862 | } // end _sys_heap_info() |
---|
1863 | |
---|
1864 | |
---|
1865 | // Local Variables: |
---|
1866 | // tab-width: 4 |
---|
1867 | // c-basic-offset: 4 |
---|
1868 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
---|
1869 | // indent-tabs-mode: nil |
---|
1870 | // End: |
---|
1871 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
---|
1872 | |
---|