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 kernel 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 | ker_chbuf_t _nic_ker_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 | ker_chbuf_t _nic_ker_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 | // FBF status |
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117 | //////////////////////////////////////////////////////////////////////////// |
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118 | |
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119 | __attribute__((section(".kdata"))) |
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120 | fbf_chbuf_t _fbf_chbuf[NB_CMA_CHANNELS] __attribute__((aligned(64))); |
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121 | |
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122 | __attribute__((section(".kdata"))) |
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123 | unsigned long long _fbf_chbuf_paddr[NB_CMA_CHANNELS]; |
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124 | |
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125 | __attribute__((section(".kdata"))) |
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126 | buffer_status_t _fbf_status[NB_CMA_CHANNELS] __attribute__((aligned(64))); |
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127 | |
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128 | //////////////////////////////////////////////////////////////////////////// |
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129 | // Initialize the syscall vector with syscall handlers |
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130 | // Note: This array must be synchronised with the define in file stdio.h |
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131 | //////////////////////////////////////////////////////////////////////////// |
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132 | |
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133 | __attribute__((section(".kdata"))) |
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134 | const void * _syscall_vector[64] = |
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135 | { |
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136 | &_sys_proc_xyp, /* 0x00 */ |
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137 | &_get_proctime, /* 0x01 */ |
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138 | &_sys_tty_write, /* 0x02 */ |
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139 | &_sys_tty_read, /* 0x03 */ |
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140 | &_sys_tty_alloc, /* 0x04 */ |
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141 | &_sys_tty_get_lock, /* 0x05 */ |
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142 | &_sys_tty_release_lock, /* 0x06 */ |
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143 | &_sys_heap_info, /* 0x07 */ |
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144 | &_sys_local_task_id, /* 0x08 */ |
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145 | &_sys_global_task_id, /* 0x09 */ |
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146 | &_sys_fbf_cma_alloc, /* 0x0A */ |
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147 | &_sys_fbf_cma_init_buf, /* 0x0B */ |
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148 | &_sys_fbf_cma_start, /* 0x0C */ |
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149 | &_sys_fbf_cma_display, /* 0x0D */ |
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150 | &_sys_fbf_cma_stop, /* 0x0E */ |
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151 | &_sys_task_exit, /* 0x0F */ |
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152 | |
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153 | &_sys_procs_number, /* 0x10 */ |
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154 | &_sys_fbf_sync_write, /* 0x11 */ |
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155 | &_sys_fbf_sync_read, /* 0x12 */ |
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156 | &_sys_thread_id, /* 0x13 */ |
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157 | &_sys_tim_alloc, /* 0x14 */ |
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158 | &_sys_tim_start, /* 0x15 */ |
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159 | &_sys_tim_stop, /* 0x16 */ |
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160 | &_sys_ukn, /* 0x17 */ |
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161 | &_sys_ukn, /* 0x18 */ |
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162 | &_sys_context_switch, /* 0x19 */ |
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163 | &_sys_vseg_get_vbase, /* 0x1A */ |
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164 | &_sys_vseg_get_length, /* 0x1B */ |
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165 | &_sys_xy_from_ptr, /* 0x1C */ |
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166 | &_sys_ukn, /* 0x1D */ |
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167 | &_sys_ukn, /* 0x1E */ |
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168 | &_sys_ukn, /* 0x1F */ |
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169 | |
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170 | &_fat_open, /* 0x20 */ |
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171 | &_fat_read, /* 0x21 */ |
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172 | &_fat_write, /* 0x22 */ |
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173 | &_fat_lseek, /* 0x23 */ |
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174 | &_fat_file_info, /* 0x24 */ |
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175 | &_fat_close, /* 0x25 */ |
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176 | &_fat_remove, /* 0x26 */ |
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177 | &_fat_rename, /* 0x27 */ |
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178 | &_fat_mkdir, /* 0x28 */ |
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179 | &_fat_list, /* 0x29 */ |
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180 | &_sys_ukn, /* 0x2A */ |
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181 | &_sys_ukn, /* 0x2B */ |
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182 | &_sys_ukn, /* 0x2C */ |
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183 | &_sys_ukn, /* 0x2D */ |
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184 | &_sys_ukn, /* 0x2E */ |
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185 | &_sys_ukn, /* 0x2F */ |
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186 | |
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187 | &_sys_nic_alloc, /* 0x30 */ |
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188 | &_sys_nic_start, /* 0x31 */ |
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189 | &_sys_nic_move, /* 0x32 */ |
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190 | &_sys_nic_stop, /* 0x33 */ |
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191 | &_sys_nic_stats, /* 0x34 */ |
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192 | &_sys_nic_clear, /* 0x35 */ |
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193 | &_sys_ukn, /* 0x36 */ |
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194 | &_sys_ukn, /* 0x37 */ |
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195 | &_sys_ukn, /* 0x38 */ |
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196 | &_sys_ukn, /* 0x39 */ |
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197 | &_sys_ukn, /* 0x3A */ |
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198 | &_sys_coproc_completed, /* 0x3B */ |
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199 | &_sys_coproc_alloc, /* 0x3C */ |
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200 | &_sys_coproc_channel_init, /* 0x3D */ |
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201 | &_sys_coproc_run, /* 0x3E */ |
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202 | &_sys_coproc_release, /* 0x3F */ |
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203 | }; |
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204 | |
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205 | |
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206 | ////////////////////////////////////////////////////////////////////////////// |
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207 | // Coprocessors related syscall handlers |
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208 | ////////////////////////////////////////////////////////////////////////////// |
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209 | |
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210 | ////////////////////////////////////////////////// |
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211 | int _sys_coproc_alloc( unsigned int coproc_type, |
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212 | unsigned int* coproc_info ) |
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213 | { |
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214 | // In this implementation, the allocation policy is constrained: |
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215 | // the coprocessor must be in the same cluster as the calling task, |
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216 | // and there is at most one coprocessor per cluster |
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217 | |
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218 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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219 | mapping_cluster_t * cluster = _get_cluster_base(header); |
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220 | mapping_periph_t * periph = _get_periph_base(header); |
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221 | |
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222 | // get cluster coordinates and cluster global index |
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223 | unsigned int procid = _get_procid(); |
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224 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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225 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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226 | unsigned int cluster_id = x * Y_SIZE + y; |
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227 | |
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228 | // search coprocessor in cluster |
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229 | mapping_periph_t* found = NULL; |
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230 | unsigned int min = cluster[cluster_id].periph_offset; |
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231 | unsigned int max = min + cluster[cluster_id].periphs; |
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232 | unsigned int periph_id; |
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233 | for ( periph_id = min ; periph_id < max ; periph_id++ ) |
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234 | { |
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235 | if ( (periph[periph_id].type == PERIPH_TYPE_MWR) && |
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236 | (periph[periph_id].subtype == coproc_type) ) |
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237 | { |
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238 | found = &periph[periph_id]; |
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239 | break; |
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240 | } |
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241 | } |
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242 | |
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243 | if ( found != NULL ) |
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244 | { |
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245 | // get the lock (at most one coproc per cluster) |
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246 | _simple_lock_acquire( &_coproc_lock[cluster_id] ); |
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247 | |
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248 | // register coproc characteristics in kernel arrays |
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249 | _coproc_type[cluster_id] = coproc_type; |
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250 | _coproc_info[cluster_id] = (found->arg0 & 0xFF) | |
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251 | (found->arg1 & 0xFF)<<8 | |
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252 | (found->arg2 & 0xFF)<<16 | |
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253 | (found->arg3 & 0xFF)<<24 ; |
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254 | |
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255 | // returns coprocessor info |
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256 | *coproc_info = _coproc_info[cluster_id]; |
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257 | |
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258 | // register coprocessor coordinates in task context |
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259 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
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260 | _set_context_slot( CTX_COPROC_ID , cluster_xy ); |
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261 | |
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262 | #if GIET_DEBUG_COPROC |
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263 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_alloc() in cluster[%d,%d]\n" |
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264 | " coproc_info = %x / cluster_xy = %x\n", |
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265 | x , y , *coproc_info , cluster_xy ); |
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266 | #endif |
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267 | return 0; |
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268 | } |
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269 | else |
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270 | { |
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271 | _printf("\n[GIET_ERROR] in _sys_coproc_alloc(): no coprocessor " |
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272 | " with type %d available in cluster[%d,%d]\n", |
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273 | coproc_type , x , y ); |
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274 | return -1; |
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275 | } |
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276 | } // end _sys_coproc_alloc() |
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277 | |
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278 | //////////////////////////////////////////////////////// |
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279 | int _sys_coproc_release( unsigned int coproc_reg_index ) |
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280 | { |
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281 | // processor coordinates |
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282 | unsigned int procid = _get_procid(); |
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283 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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284 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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285 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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286 | |
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287 | // get coprocessor coordinates |
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288 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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289 | if ( cluster_xy > 0xFF ) |
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290 | { |
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291 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
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292 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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293 | x , y , p ); |
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294 | return -1; |
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295 | } |
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296 | |
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297 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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298 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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299 | unsigned int cluster_id = cx * Y_SIZE + cy; |
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300 | unsigned int info = _coproc_info[cluster_id]; |
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301 | unsigned int nb_to = info & 0xFF; |
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302 | unsigned int nb_from = (info>>8) & 0xFF; |
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303 | unsigned int channel; |
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304 | |
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305 | // stops coprocessor and communication channels |
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306 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 0 ); |
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307 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
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308 | { |
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309 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 0 ); |
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310 | } |
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311 | |
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312 | // deallocates coprocessor coordinates in task context |
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313 | _set_context_slot( CTX_COPROC_ID , 0xFFFFFFFF ); |
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314 | |
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315 | // release coprocessor lock |
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316 | _simple_lock_release( &_coproc_lock[cluster_id] ); |
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317 | |
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318 | #if GIET_DEBUG_COPROC |
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319 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_release() in cluster[%d,%d]\n", |
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320 | cx, cy ); |
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321 | #endif |
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322 | |
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323 | return 0; |
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324 | } // end _sys_coproc_release() |
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325 | |
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326 | ////////////////////////////////////////////////////////////// |
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327 | int _sys_coproc_channel_init( unsigned int channel, |
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328 | giet_coproc_channel_t* desc ) |
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329 | { |
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330 | // processor coordinates |
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331 | unsigned int procid = _get_procid(); |
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332 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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333 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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334 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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335 | |
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336 | // get coprocessor coordinates |
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337 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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338 | if ( cluster_xy > 0xFF ) |
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339 | { |
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340 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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341 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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342 | x , y , p ); |
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343 | return -1; |
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344 | } |
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345 | |
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346 | // check channel mode |
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347 | unsigned mode = desc->channel_mode; |
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348 | if ( (mode != MODE_MWMR) && |
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349 | (mode != MODE_DMA_IRQ) && |
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350 | (mode != MODE_DMA_NO_IRQ) ) |
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351 | { |
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352 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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353 | " illegal mode\n"); |
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354 | return -1; |
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355 | } |
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356 | |
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357 | // get memory buffer size |
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358 | unsigned int size = desc->buffer_size; |
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359 | |
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360 | // physical addresses |
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361 | unsigned long long buffer_paddr; |
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362 | unsigned int buffer_lsb; |
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363 | unsigned int buffer_msb; |
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364 | unsigned long long mwmr_paddr = 0; |
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365 | unsigned int mwmr_lsb; |
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366 | unsigned int mwmr_msb; |
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367 | unsigned long long lock_paddr = 0; |
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368 | unsigned int lock_lsb; |
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369 | unsigned int lock_msb; |
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370 | |
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371 | unsigned int flags; // unused |
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372 | |
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373 | // compute memory buffer physical address |
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374 | buffer_paddr = _v2p_translate( desc->buffer_vaddr , &flags ); |
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375 | buffer_lsb = (unsigned int)buffer_paddr; |
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376 | buffer_msb = (unsigned int)(buffer_paddr>>32); |
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377 | |
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378 | // call MWMR_DMA driver |
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379 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MODE, mode ); |
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380 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_SIZE, size ); |
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381 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_LSB, buffer_lsb ); |
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382 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_MSB, buffer_msb ); |
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383 | |
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384 | if ( mode == MODE_MWMR ) |
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385 | { |
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386 | // compute MWMR descriptor physical address |
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387 | mwmr_paddr = _v2p_translate( desc->mwmr_vaddr , &flags ); |
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388 | mwmr_lsb = (unsigned int)mwmr_paddr; |
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389 | mwmr_msb = (unsigned int)(mwmr_paddr>>32); |
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390 | |
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391 | // call MWMR_DMA driver |
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392 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_LSB, mwmr_lsb ); |
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393 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_MSB, mwmr_msb ); |
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394 | |
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395 | // compute lock physical address |
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396 | lock_paddr = _v2p_translate( desc->lock_vaddr , &flags ); |
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397 | lock_lsb = (unsigned int)lock_paddr; |
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398 | lock_msb = (unsigned int)(lock_paddr>>32); |
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399 | |
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400 | // call MWMR_DMA driver |
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401 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_LSB, lock_lsb ); |
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402 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_MSB, lock_msb ); |
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403 | } |
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404 | |
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405 | #if GIET_DEBUG_COPROC |
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406 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_channel_init() for coproc[%d,%d]\n" |
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407 | " channel = %d / mode = %d / buffer_size = %d\n" |
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408 | " buffer_paddr = %l / mwmr_paddr = %l / lock_paddr = %l\n", |
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409 | x , y , channel , mode , size , |
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410 | buffer_paddr, mwmr_paddr, lock_paddr ); |
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411 | #endif |
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412 | |
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413 | return 0; |
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414 | } // end _sys_coproc_channel_init() |
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415 | |
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416 | //////////////////////////////////////////////////// |
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417 | int _sys_coproc_run( unsigned int coproc_reg_index ) |
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418 | { |
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419 | // processor coordinates |
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420 | unsigned int procid = _get_procid(); |
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421 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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422 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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423 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
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424 | |
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425 | // get coprocessor coordinates |
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426 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
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427 | if ( cluster_xy > 0xFF ) |
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428 | { |
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429 | _printf("\n[GIET_ERROR] in _sys_coproc_run(): " |
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430 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
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431 | x , y , p ); |
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432 | return -1; |
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433 | } |
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434 | |
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435 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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436 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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437 | unsigned int cluster_id = cx * Y_SIZE + cy; |
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438 | unsigned int info = _coproc_info[cluster_id]; |
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439 | unsigned int nb_to = info & 0xFF; |
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440 | unsigned int nb_from = (info>>8) & 0xFF; |
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441 | unsigned int mode = 0xFFFFFFFF; |
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442 | unsigned int channel; |
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443 | |
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444 | // register coprocessor running mode |
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445 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
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446 | { |
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447 | unsigned int temp; |
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448 | temp = _mwr_get_channel_register( cluster_xy , channel , MWR_CHANNEL_MODE ); |
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449 | |
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450 | if ( mode == 0xFFFFFFFF ) |
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451 | { |
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452 | mode = temp; |
---|
453 | } |
---|
454 | else if ( temp != mode ) |
---|
455 | { |
---|
456 | _printf("\n[GIET_ERROR] P[%d,%d,%d] in _sys_coproc_run() for coprocessor[%d,%d]\n" |
---|
457 | " all channels don't have the same mode\n", x , y , p , cx , cy ); |
---|
458 | return -1; |
---|
459 | } |
---|
460 | } |
---|
461 | _coproc_mode[cluster_id] = mode; |
---|
462 | |
---|
463 | // start all communication channels |
---|
464 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
---|
465 | { |
---|
466 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 1 ); |
---|
467 | } |
---|
468 | |
---|
469 | ////////////////////////////////////////////////////////////////////////// |
---|
470 | if ( (mode == MODE_MWMR) || (mode == MODE_DMA_NO_IRQ) ) // no descheduling |
---|
471 | { |
---|
472 | // start coprocessor |
---|
473 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 1 ); |
---|
474 | |
---|
475 | #if GIET_DEBUG_COPROC |
---|
476 | if ( mode == MODE_MWMR ) |
---|
477 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
478 | " MODE_MWMR at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
479 | else |
---|
480 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
481 | " MODE_DMA_NO_IRQ at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
482 | #endif |
---|
483 | |
---|
484 | return 0; |
---|
485 | } |
---|
486 | /////////////////////////////////////////////////////////////////////////// |
---|
487 | else // mode == MODE_DMA_IRQ => descheduling |
---|
488 | { |
---|
489 | // set _coproc_gtid |
---|
490 | unsigned int ltid = _get_current_task_id(); |
---|
491 | _coproc_gtid[cluster_id] = (procid<<16) + ltid; |
---|
492 | |
---|
493 | // enters critical section |
---|
494 | unsigned int save_sr; |
---|
495 | _it_disable( &save_sr ); |
---|
496 | |
---|
497 | // reset runnable |
---|
498 | _set_task_slot( x, y, p, ltid, CTX_RUN_ID, 0 ); |
---|
499 | |
---|
500 | // start coprocessor |
---|
501 | _mwr_set_coproc_register( cluster_xy , coproc_reg_index , 1 ); |
---|
502 | |
---|
503 | #if GIET_DEBUG_COPROC |
---|
504 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] starts coprocessor[%d,%d]\n" |
---|
505 | " MODE_DMA_IRQ at cycle %d\n", x , y , p , cx , cy , _get_proctime() ); |
---|
506 | #endif |
---|
507 | |
---|
508 | // deschedule task |
---|
509 | _ctx_switch(); |
---|
510 | |
---|
511 | #if GIET_DEBUG_COPROC |
---|
512 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_run() P[%d,%d,%d] resume\n" |
---|
513 | " coprocessor[%d,%d] completion at cycle %d\n", |
---|
514 | x , y , p , cx , cy , _get_proctime() ); |
---|
515 | #endif |
---|
516 | |
---|
517 | // restore SR |
---|
518 | _it_restore( &save_sr ); |
---|
519 | |
---|
520 | // return error computed by mwr_isr() |
---|
521 | return _coproc_error[cluster_id]; |
---|
522 | } |
---|
523 | } // end _sys_coproc_run() |
---|
524 | |
---|
525 | /////////////////////////// |
---|
526 | int _sys_coproc_completed() |
---|
527 | { |
---|
528 | // processor coordinates |
---|
529 | unsigned int procid = _get_procid(); |
---|
530 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
---|
531 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
532 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
---|
533 | |
---|
534 | // get coprocessor coordinates |
---|
535 | unsigned int cluster_xy = _get_context_slot( CTX_COPROC_ID ); |
---|
536 | if ( cluster_xy > 0xFF ) |
---|
537 | { |
---|
538 | _printf("\n[GIET_ERROR] in _sys_coproc_completed(): " |
---|
539 | "no coprocessor allocated to task running on P[%d,%d,%d]\n", |
---|
540 | x , y , p ); |
---|
541 | return -1; |
---|
542 | } |
---|
543 | |
---|
544 | unsigned int cx = cluster_xy >> Y_WIDTH; |
---|
545 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
546 | unsigned int cluster_id = cx * Y_SIZE + cy; |
---|
547 | unsigned int mode = _coproc_mode[cluster_id]; |
---|
548 | |
---|
549 | // analyse possible errors |
---|
550 | if ( mode == MODE_DMA_NO_IRQ ) |
---|
551 | { |
---|
552 | unsigned int info = _coproc_info[cluster_id]; |
---|
553 | unsigned int nb_to = info & 0xFF; |
---|
554 | unsigned int nb_from = (info>>8) & 0xFF; |
---|
555 | unsigned int error = 0; |
---|
556 | unsigned int channel; |
---|
557 | unsigned int status; |
---|
558 | |
---|
559 | // get status for all channels, and signal all reported errors |
---|
560 | for ( channel = 0 ; channel < (nb_to +nb_from) ; channel++ ) |
---|
561 | { |
---|
562 | do |
---|
563 | { |
---|
564 | status = _mwr_get_channel_register( cluster_xy , channel , MWR_CHANNEL_STATUS ); |
---|
565 | if ( status == MWR_CHANNEL_ERROR_DATA ) |
---|
566 | { |
---|
567 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
568 | " / channel %d / DATA_ERROR\n", channel ); |
---|
569 | error = 1; |
---|
570 | break; |
---|
571 | } |
---|
572 | else if ( status == MWR_CHANNEL_ERROR_LOCK ) |
---|
573 | { |
---|
574 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
575 | " / channel %d / LOCK_ERROR\n", channel ); |
---|
576 | error = 1; |
---|
577 | break; |
---|
578 | } |
---|
579 | else if ( status == MWR_CHANNEL_ERROR_DESC ) |
---|
580 | { |
---|
581 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
582 | " / channel %d / DESC_ERROR\n", channel ); |
---|
583 | error = 1; |
---|
584 | break; |
---|
585 | } |
---|
586 | } while ( status == MWR_CHANNEL_BUSY ); |
---|
587 | |
---|
588 | // reset channel |
---|
589 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 0 ); |
---|
590 | |
---|
591 | } // end for channels |
---|
592 | |
---|
593 | #if GIET_DEBUG_COPROC |
---|
594 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_completed() for coprocessor[%d,%d] error = %d\n", |
---|
595 | cx , cy , error ); |
---|
596 | #endif |
---|
597 | |
---|
598 | return error; |
---|
599 | } |
---|
600 | else // mode == MODE_MWMR or MODE_DMA_IRQ |
---|
601 | { |
---|
602 | _printf("\n[GIET ERROR] sys_coproc_completed() should not be called for " |
---|
603 | "coprocessor[%d,%d] running in MODE_MWMR or MODE_DMA_IRQ\n", cx , cy ); |
---|
604 | return 1; |
---|
605 | } |
---|
606 | } // end _sys_coproc_completed() |
---|
607 | |
---|
608 | |
---|
609 | ////////////////////////////////////////////////////////////////////////////// |
---|
610 | // TTY related syscall handlers |
---|
611 | ////////////////////////////////////////////////////////////////////////////// |
---|
612 | |
---|
613 | //////////////////// |
---|
614 | int _sys_tty_alloc() |
---|
615 | { |
---|
616 | // get a new TTY terminal index |
---|
617 | unsigned int channel = _atomic_increment( &_tty_channel_allocator, 1 ); |
---|
618 | |
---|
619 | if ( channel >= NB_TTY_CHANNELS ) |
---|
620 | { |
---|
621 | _printf("\n[GIET_ERROR] in _sys_tty_alloc() : not enough TTY channels\n"); |
---|
622 | return -1; |
---|
623 | } |
---|
624 | else |
---|
625 | { |
---|
626 | } |
---|
627 | |
---|
628 | // allocate a WTI mailbox to the calling proc if external IRQ |
---|
629 | unsigned int unused; |
---|
630 | if ( USE_PIC ) _ext_irq_alloc( ISR_TTY_RX , channel , &unused ); |
---|
631 | |
---|
632 | // update calling task index |
---|
633 | _set_context_slot( CTX_TTY_ID, channel ); |
---|
634 | |
---|
635 | return 0; |
---|
636 | } |
---|
637 | |
---|
638 | ///////////////////////////////////////////////// |
---|
639 | int _sys_tty_write( const char* buffer, |
---|
640 | unsigned int length, // number of characters |
---|
641 | unsigned int channel) // channel index |
---|
642 | { |
---|
643 | unsigned int nwritten; |
---|
644 | |
---|
645 | // compute and check tty channel |
---|
646 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
647 | if( channel >= NB_TTY_CHANNELS ) return -1; |
---|
648 | |
---|
649 | // write string to TTY channel |
---|
650 | for (nwritten = 0; nwritten < length; nwritten++) |
---|
651 | { |
---|
652 | // check tty's status |
---|
653 | if ( _tty_get_register( channel, TTY_STATUS ) & 0x2 ) break; |
---|
654 | |
---|
655 | // write one byte |
---|
656 | if (buffer[nwritten] == '\n') |
---|
657 | { |
---|
658 | _tty_set_register( channel, TTY_WRITE, (unsigned int)'\r' ); |
---|
659 | } |
---|
660 | _tty_set_register( channel, TTY_WRITE, (unsigned int)buffer[nwritten] ); |
---|
661 | } |
---|
662 | |
---|
663 | return nwritten; |
---|
664 | } |
---|
665 | |
---|
666 | //////////////////////////////////////////////// |
---|
667 | int _sys_tty_read( char* buffer, |
---|
668 | unsigned int length, // unused |
---|
669 | unsigned int channel) // channel index |
---|
670 | { |
---|
671 | // compute and check tty channel |
---|
672 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
673 | if( channel >= NB_TTY_CHANNELS ) return -1; |
---|
674 | |
---|
675 | // read one character from TTY channel |
---|
676 | if (_tty_rx_full[channel] == 0) |
---|
677 | { |
---|
678 | return 0; |
---|
679 | } |
---|
680 | else |
---|
681 | { |
---|
682 | *buffer = _tty_rx_buf[channel]; |
---|
683 | _tty_rx_full[channel] = 0; |
---|
684 | return 1; |
---|
685 | } |
---|
686 | } |
---|
687 | |
---|
688 | /////////////////////////////////////////// |
---|
689 | int _sys_tty_get_lock( unsigned int channel, // unused |
---|
690 | unsigned int * save_sr_ptr ) |
---|
691 | { |
---|
692 | // check tty channel |
---|
693 | if( channel != 0 ) return 1; |
---|
694 | |
---|
695 | _it_disable( save_sr_ptr ); |
---|
696 | _sqt_lock_acquire( &_tty0_sqt_lock ); |
---|
697 | return 0; |
---|
698 | } |
---|
699 | |
---|
700 | /////////////////////////////////////////////// |
---|
701 | int _sys_tty_release_lock( unsigned int channel, |
---|
702 | unsigned int * save_sr_ptr ) |
---|
703 | { |
---|
704 | // check tty channel |
---|
705 | if( channel != 0 ) return 1; |
---|
706 | |
---|
707 | _sqt_lock_release( &_tty0_sqt_lock ); |
---|
708 | _it_restore( save_sr_ptr ); |
---|
709 | return 0; |
---|
710 | } |
---|
711 | |
---|
712 | ////////////////////////////////////////////////////////////////////////////// |
---|
713 | // TIM related syscall handlers |
---|
714 | ////////////////////////////////////////////////////////////////////////////// |
---|
715 | |
---|
716 | //////////////////// |
---|
717 | int _sys_tim_alloc() |
---|
718 | { |
---|
719 | // get a new timer index |
---|
720 | unsigned int channel = _atomic_increment( &_tim_channel_allocator, 1 ); |
---|
721 | |
---|
722 | if ( channel >= NB_TIM_CHANNELS ) |
---|
723 | { |
---|
724 | _printf("\n[GIET_ERROR] in _sys_tim_alloc() : not enough TIM channels\n"); |
---|
725 | return -1; |
---|
726 | } |
---|
727 | else |
---|
728 | { |
---|
729 | _set_context_slot( CTX_TIM_ID, channel ); |
---|
730 | return 0; |
---|
731 | } |
---|
732 | } |
---|
733 | |
---|
734 | ///////////////////////////////////////// |
---|
735 | int _sys_tim_start( unsigned int period ) |
---|
736 | { |
---|
737 | // get timer index |
---|
738 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
739 | if ( channel >= NB_TIM_CHANNELS ) |
---|
740 | { |
---|
741 | _printf("\n[GIET_ERROR] in _sys_tim_start() : not enough TIM channels\n"); |
---|
742 | return -1; |
---|
743 | } |
---|
744 | |
---|
745 | // start timer |
---|
746 | _timer_start( channel, period ); |
---|
747 | |
---|
748 | return 0; |
---|
749 | } |
---|
750 | |
---|
751 | /////////////////// |
---|
752 | int _sys_tim_stop() |
---|
753 | { |
---|
754 | // get timer index |
---|
755 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
756 | if ( channel >= NB_TIM_CHANNELS ) |
---|
757 | { |
---|
758 | _printf("\n[GIET_ERROR] in _sys_tim_stop() : illegal timer index\n"); |
---|
759 | return -1; |
---|
760 | } |
---|
761 | |
---|
762 | // stop timer |
---|
763 | _timer_stop( channel ); |
---|
764 | |
---|
765 | return 0; |
---|
766 | } |
---|
767 | |
---|
768 | ////////////////////////////////////////////////////////////////////////////// |
---|
769 | // NIC related syscall handlers |
---|
770 | ////////////////////////////////////////////////////////////////////////////// |
---|
771 | |
---|
772 | #define NIC_CONTAINER_SIZE 4096 |
---|
773 | |
---|
774 | //////////////////////////////////////// |
---|
775 | int _sys_nic_alloc( unsigned int is_rx, |
---|
776 | unsigned int xmax, |
---|
777 | unsigned int ymax ) |
---|
778 | { |
---|
779 | // check xmax / ymax parameters |
---|
780 | if ( xmax > X_SIZE ) |
---|
781 | { |
---|
782 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() xmax argument too large\n"); |
---|
783 | return -1; |
---|
784 | } |
---|
785 | if ( ymax > Y_SIZE ) |
---|
786 | { |
---|
787 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() ymax argument too large\n"); |
---|
788 | return -1; |
---|
789 | } |
---|
790 | |
---|
791 | //////////////////////////////////////////////////////// |
---|
792 | // Step 1: get and register CMA and NIC channel index // |
---|
793 | //////////////////////////////////////////////////////// |
---|
794 | |
---|
795 | // get a NIC_RX or NIC_TX channel index |
---|
796 | unsigned int nic_channel; |
---|
797 | unsigned int cma_channel; |
---|
798 | |
---|
799 | if ( is_rx ) nic_channel = _atomic_increment( &_nic_rx_channel_allocator, 1 ); |
---|
800 | else nic_channel = _atomic_increment( &_nic_tx_channel_allocator, 1 ); |
---|
801 | |
---|
802 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
---|
803 | { |
---|
804 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough NIC channels\n"); |
---|
805 | return -1; |
---|
806 | } |
---|
807 | |
---|
808 | // get a CMA channel index |
---|
809 | cma_channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
---|
810 | |
---|
811 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
812 | { |
---|
813 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough CMA channels\n"); |
---|
814 | return -1; |
---|
815 | } |
---|
816 | |
---|
817 | #if GIET_DEBUG_NIC |
---|
818 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
819 | _printf("\n[GIET DEBUG NIC] Task %d enters sys_nic_alloc() at cycle %d\n" |
---|
820 | " nic_channel = %d / cma_channel = %d\n", |
---|
821 | thread , _get_proctime() , nic_channel , cma_channel ); |
---|
822 | #endif |
---|
823 | |
---|
824 | // register nic_index and cma_index in task context |
---|
825 | if ( is_rx ) |
---|
826 | { |
---|
827 | _set_context_slot( CTX_NIC_RX_ID, nic_channel ); |
---|
828 | _set_context_slot( CTX_CMA_RX_ID, cma_channel ); |
---|
829 | } |
---|
830 | else |
---|
831 | { |
---|
832 | _set_context_slot( CTX_NIC_TX_ID, nic_channel ); |
---|
833 | _set_context_slot( CTX_CMA_TX_ID, cma_channel ); |
---|
834 | } |
---|
835 | |
---|
836 | ///////////////////////////////////////////////////////////////////////////////// |
---|
837 | // Step 2: loop on all the clusters // |
---|
838 | // Allocate the kernel containers and status, compute the container and the // |
---|
839 | // status physical addresses, fill and synchronize the kernel CHBUF descriptor // |
---|
840 | ///////////////////////////////////////////////////////////////////////////////// |
---|
841 | |
---|
842 | // physical addresses to be registered in the CMA registers |
---|
843 | unsigned long long nic_chbuf_pbase; // NIC chbuf physical address |
---|
844 | unsigned long long ker_chbuf_pbase; // kernel chbuf physical address |
---|
845 | |
---|
846 | // allocate one kernel container and one status variable per cluster in the |
---|
847 | // (xmax / ymax) mesh |
---|
848 | unsigned int cx; // cluster X coordinate |
---|
849 | unsigned int cy; // cluster Y coordinate |
---|
850 | unsigned int index; // container index in chbuf |
---|
851 | unsigned int vaddr; // virtual address |
---|
852 | unsigned long long cont_paddr; // container physical address |
---|
853 | unsigned long long sts_paddr; // container status physical address |
---|
854 | |
---|
855 | unsigned int flags; // for _v2p_translate() |
---|
856 | |
---|
857 | for ( cx = 0 ; cx < xmax ; cx++ ) |
---|
858 | { |
---|
859 | for ( cy = 0 ; cy < ymax ; cy++ ) |
---|
860 | { |
---|
861 | // compute index in chbuf |
---|
862 | index = (cx * ymax) + cy; |
---|
863 | |
---|
864 | // allocate the kernel container |
---|
865 | vaddr = (unsigned int)_remote_malloc( NIC_CONTAINER_SIZE, cx, cy ); |
---|
866 | |
---|
867 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
---|
868 | { |
---|
869 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough kenel heap" |
---|
870 | " in cluster[%d,%d]\n", cx, cy ); |
---|
871 | return -1; |
---|
872 | } |
---|
873 | |
---|
874 | // compute container physical address |
---|
875 | cont_paddr = _v2p_translate( vaddr , &flags ); |
---|
876 | |
---|
877 | // checking container address alignment |
---|
878 | if ( cont_paddr & 0x3F ) |
---|
879 | { |
---|
880 | _printf("\n[GIET ERROR] in _sys_nic_alloc() : container address of cluster[%d,%d] not aligned\n", |
---|
881 | cx, cy); |
---|
882 | return -1; |
---|
883 | } |
---|
884 | |
---|
885 | #if GIET_DEBUG_NIC |
---|
886 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc()\n" |
---|
887 | " allocates in cluster[%d,%d]:\n" |
---|
888 | " - container vaddr = %x / paddr = %l\n", |
---|
889 | thread , cx , cy , vaddr, cont_paddr ); |
---|
890 | #endif |
---|
891 | |
---|
892 | // allocate the kernel container status |
---|
893 | // it occupies 64 bytes but only last bit is useful (1 for full and 0 for empty) |
---|
894 | vaddr = (unsigned int)_remote_malloc( 64, cx, cy ); |
---|
895 | |
---|
896 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
---|
897 | { |
---|
898 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough kenel heap" |
---|
899 | " in cluster[%d,%d]\n", cx, cy ); |
---|
900 | return -1; |
---|
901 | } |
---|
902 | |
---|
903 | // compute status physical address |
---|
904 | sts_paddr = _v2p_translate( vaddr , &flags ); |
---|
905 | |
---|
906 | // checking status address alignment |
---|
907 | if ( sts_paddr & 0x3F ) |
---|
908 | { |
---|
909 | _printf("\n[GIET ERROR] in _sys_nic_alloc() : status address of cluster[%d,%d] not aligned\n", |
---|
910 | cx, cy); |
---|
911 | return -1; |
---|
912 | } |
---|
913 | |
---|
914 | // initialize chbuf entry |
---|
915 | // The buffer descriptor has the following structure: |
---|
916 | // - the 26 LSB bits contain bits[6:31] of the buffer physical address |
---|
917 | // - the 26 following bits contain bits[6:31] of the physical address where the |
---|
918 | // buffer status is located |
---|
919 | // - the 12 MSB bits contain the common address extension of the buffer and its |
---|
920 | // status |
---|
921 | if ( is_rx ) |
---|
922 | _nic_ker_rx_chbuf[nic_channel].buf_desc[index] = |
---|
923 | (unsigned long long) |
---|
924 | ((sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
925 | (((cont_paddr & 0xFFFFFFFFFFFULL) >> 6) << 26); |
---|
926 | else |
---|
927 | _nic_ker_tx_chbuf[nic_channel].buf_desc[index] = |
---|
928 | (unsigned long long) |
---|
929 | ((sts_paddr & 0xFFFFFFC0ULL) >> 6) + |
---|
930 | (((cont_paddr & 0xFFFFFFFFFC0ULL) >> 6) << 26); |
---|
931 | |
---|
932 | #if GIET_DEBUG_NIC |
---|
933 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc()\n" |
---|
934 | " - status vaddr = %x / paddr = %l\n" |
---|
935 | " Buffer descriptor = %l\n", |
---|
936 | thread, vaddr, sts_paddr, |
---|
937 | (unsigned long long)((sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
938 | (((cont_paddr & 0xFFFFFFFFFFFULL) >> 6) << 26) ); |
---|
939 | #endif |
---|
940 | } |
---|
941 | } |
---|
942 | |
---|
943 | // complete kernel chbuf initialisation |
---|
944 | if ( is_rx ) |
---|
945 | { |
---|
946 | _nic_ker_rx_chbuf[nic_channel].xmax = xmax; |
---|
947 | _nic_ker_rx_chbuf[nic_channel].ymax = ymax; |
---|
948 | } |
---|
949 | else |
---|
950 | { |
---|
951 | _nic_ker_tx_chbuf[nic_channel].xmax = xmax; |
---|
952 | _nic_ker_tx_chbuf[nic_channel].ymax = ymax; |
---|
953 | } |
---|
954 | |
---|
955 | // compute the kernel chbuf descriptor physical address |
---|
956 | if ( is_rx ) vaddr = (unsigned int)( &_nic_ker_rx_chbuf[nic_channel] ); |
---|
957 | else vaddr = (unsigned int)( &_nic_ker_tx_chbuf[nic_channel] ); |
---|
958 | |
---|
959 | ker_chbuf_pbase = _v2p_translate( vaddr , &flags ); |
---|
960 | |
---|
961 | #if GIET_DEBUG_NIC |
---|
962 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get kernel chbuf\n" |
---|
963 | " vaddr = %x / paddr = %l\n", |
---|
964 | thread , vaddr , ker_chbuf_pbase ); |
---|
965 | #endif |
---|
966 | |
---|
967 | // sync the kernel chbuf in L2 after write in L2 |
---|
968 | _mmc_sync( ker_chbuf_pbase, sizeof( ker_chbuf_t ) ); |
---|
969 | |
---|
970 | /////////////////////////////////////////////////////////////// |
---|
971 | // Step 3: compute the NIC chbuf descriptor physical address // |
---|
972 | /////////////////////////////////////////////////////////////// |
---|
973 | |
---|
974 | unsigned int offset; |
---|
975 | if ( is_rx ) offset = 0x4100; |
---|
976 | else offset = 0x4110; |
---|
977 | nic_chbuf_pbase = (((unsigned long long)((X_IO << Y_WIDTH) + Y_IO))<<32) | |
---|
978 | (SEG_NIC_BASE + (nic_channel<<15) + offset); |
---|
979 | |
---|
980 | #if GIET_DEBUG_NIC |
---|
981 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get NIC chbuf : paddr = %l\n", |
---|
982 | thread , nic_chbuf_pbase ); |
---|
983 | #endif |
---|
984 | |
---|
985 | //////////////////////////////////////////////////////////////////////////////// |
---|
986 | // Step 4: initialize CMA registers defining the source & destination chbufs // |
---|
987 | //////////////////////////////////////////////////////////////////////////////// |
---|
988 | |
---|
989 | if ( is_rx ) // NIC to kernel |
---|
990 | { |
---|
991 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
992 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
993 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, 2 ); |
---|
994 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
995 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
996 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, xmax * ymax ); |
---|
997 | } |
---|
998 | else // kernel to NIC |
---|
999 | { |
---|
1000 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
1001 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
1002 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, xmax * ymax ); |
---|
1003 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
1004 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
1005 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, 2 ); |
---|
1006 | } |
---|
1007 | |
---|
1008 | #if GIET_DEBUG_NIC |
---|
1009 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_alloc() at cycle %d\n", |
---|
1010 | thread, _get_proctime() ); |
---|
1011 | #endif |
---|
1012 | |
---|
1013 | return nic_channel; |
---|
1014 | } // end _sys_nic_alloc() |
---|
1015 | |
---|
1016 | |
---|
1017 | //////////////////////////////////////// |
---|
1018 | int _sys_nic_start( unsigned int is_rx, |
---|
1019 | unsigned int channel ) |
---|
1020 | { |
---|
1021 | unsigned int nic_channel; |
---|
1022 | unsigned int cma_channel; |
---|
1023 | |
---|
1024 | // get NIC channel index and CMA channel index from task context |
---|
1025 | if ( is_rx ) |
---|
1026 | { |
---|
1027 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1028 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
1029 | } |
---|
1030 | else |
---|
1031 | { |
---|
1032 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1033 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
1034 | } |
---|
1035 | |
---|
1036 | #if GIET_DEBUG_NIC |
---|
1037 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
1038 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_start() at cycle %d\n" |
---|
1039 | " get NIC channel = %d / CMA channel = %d\n", |
---|
1040 | thread, _get_proctime(), nic_channel, cma_channel ); |
---|
1041 | #endif |
---|
1042 | |
---|
1043 | // check NIC and CMA channels index |
---|
1044 | if ( nic_channel != channel ) |
---|
1045 | { |
---|
1046 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal NIC channel\n"); |
---|
1047 | return -1; |
---|
1048 | } |
---|
1049 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
1050 | { |
---|
1051 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal CMA channel\n"); |
---|
1052 | return -1; |
---|
1053 | } |
---|
1054 | |
---|
1055 | // start CMA transfer |
---|
1056 | _cma_set_register( cma_channel, CHBUF_BUF_SIZE , NIC_CONTAINER_SIZE ); |
---|
1057 | _cma_set_register( cma_channel, CHBUF_PERIOD , 0 ); // OUT_OF_ORDER |
---|
1058 | _cma_set_register( cma_channel, CHBUF_RUN , 1 ); |
---|
1059 | |
---|
1060 | // activates NIC channel |
---|
1061 | _nic_channel_start( nic_channel, is_rx, GIET_NIC_MAC4, GIET_NIC_MAC2 ); |
---|
1062 | |
---|
1063 | #if GIET_DEBUG_NIC |
---|
1064 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_start() at cycle %d\n", |
---|
1065 | thread , _get_proctime() ); |
---|
1066 | #endif |
---|
1067 | |
---|
1068 | return 0; |
---|
1069 | } // end _sys_nic_start() |
---|
1070 | |
---|
1071 | |
---|
1072 | ////////////////////////////////////// |
---|
1073 | int _sys_nic_move( unsigned int is_rx, |
---|
1074 | unsigned int channel, |
---|
1075 | void* buffer ) |
---|
1076 | { |
---|
1077 | |
---|
1078 | #if GIET_DEBUG_NIC |
---|
1079 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
---|
1080 | _printf("\n[GIET DEBUG NIC] Task %d enters _sys_nic_move() at cycle %d\n", |
---|
1081 | thread , _get_proctime() ); |
---|
1082 | #endif |
---|
1083 | |
---|
1084 | // check NIC channel index |
---|
1085 | if ( channel >= NB_NIC_CHANNELS ) |
---|
1086 | { |
---|
1087 | _printf("\n[GIET_ERROR] in _sys_nic_move() : illegal NIC channel index\n"); |
---|
1088 | return -1; |
---|
1089 | } |
---|
1090 | |
---|
1091 | // get kernel chbuf virtual address |
---|
1092 | ker_chbuf_t* ker_chbuf; |
---|
1093 | if ( is_rx ) ker_chbuf = &_nic_ker_rx_chbuf[channel]; |
---|
1094 | else ker_chbuf = &_nic_ker_tx_chbuf[channel]; |
---|
1095 | |
---|
1096 | // get xmax / ymax parameters |
---|
1097 | unsigned int xmax = ker_chbuf->xmax; |
---|
1098 | unsigned int ymax = ker_chbuf->ymax; |
---|
1099 | |
---|
1100 | // get cluster coordinates for the processor running the calling task |
---|
1101 | unsigned int procid = _get_procid(); |
---|
1102 | unsigned int cx = procid >> (Y_WIDTH + P_WIDTH); |
---|
1103 | unsigned int cy = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
1104 | |
---|
1105 | // check processor coordinates / (xmax,ymax) |
---|
1106 | if ( cx >= xmax ) |
---|
1107 | { |
---|
1108 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor X coordinate = %d" |
---|
1109 | " / xmax = %d\n", cx , xmax ); |
---|
1110 | return -1; |
---|
1111 | } |
---|
1112 | if ( cy >= ymax ) |
---|
1113 | { |
---|
1114 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor Y coordinate = %d" |
---|
1115 | " / ymax = %d\n", cy , ymax ); |
---|
1116 | return -1; |
---|
1117 | } |
---|
1118 | |
---|
1119 | unsigned long long usr_buf_paddr; // user buffer physical address |
---|
1120 | unsigned long long ker_buf_paddr; // kernel buffer physical address |
---|
1121 | unsigned long long ker_sts_paddr; // kernel buffer status physical address |
---|
1122 | unsigned long long ker_buf_desc; // kernel buffer descriptor |
---|
1123 | unsigned int ker_sts; // kernel buffer status (full or empty) |
---|
1124 | unsigned int index; // kernel buffer index in chbuf |
---|
1125 | unsigned int flags; // for _v2P_translate |
---|
1126 | |
---|
1127 | // Compute user buffer physical address and check access rights |
---|
1128 | usr_buf_paddr = _v2p_translate( (unsigned int)buffer , &flags ); |
---|
1129 | |
---|
1130 | if ( (flags & PTE_U) == 0 ) |
---|
1131 | { |
---|
1132 | _printf("\n[GIET ERROR] in _sys_nic_tx_move() : illegal user buffer address\n"); |
---|
1133 | return -1; |
---|
1134 | } |
---|
1135 | |
---|
1136 | #if GIET_DEBUG_NIC |
---|
1137 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() get user buffer : paddr = %l\n", |
---|
1138 | thread, usr_buf_paddr ); |
---|
1139 | #endif |
---|
1140 | |
---|
1141 | // compute buffer index, buffer descriptor paddr and buffer status paddr |
---|
1142 | index = (ymax * cx) + cy; |
---|
1143 | ker_buf_desc = ker_chbuf->buf_desc[index]; |
---|
1144 | ker_sts_paddr = ((ker_buf_desc & 0xFFF0000000000000ULL) >> 20) + |
---|
1145 | ((ker_buf_desc & 0x3FFFFFFULL) << 6); |
---|
1146 | |
---|
1147 | #if GIET_DEBUG_NIC |
---|
1148 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() read ker_buf_desc %d at cycle %d\n" |
---|
1149 | " kernel buffer descriptor = %l\n", |
---|
1150 | thread, index, _get_proctime(), ker_buf_desc ); |
---|
1151 | #endif |
---|
1152 | |
---|
1153 | // poll local kernel container status until success |
---|
1154 | while ( 1 ) |
---|
1155 | { |
---|
1156 | // inval buffer descriptor in L2 before read in L2 |
---|
1157 | _mmc_inval( ker_sts_paddr, 4 ); |
---|
1158 | ker_sts = _physical_read( ker_sts_paddr ); |
---|
1159 | |
---|
1160 | #if GIET_DEBUG_NIC |
---|
1161 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() read ker_buf_sts %d at cycle %d\n" |
---|
1162 | " paddr = %l / kernel buffer status = %x\n", |
---|
1163 | thread, index, _get_proctime(), ker_sts_paddr, ker_sts ); |
---|
1164 | #endif |
---|
1165 | |
---|
1166 | // test buffer status and break if found |
---|
1167 | if ( ( is_rx != 0 ) && ( ker_sts == 0x1 ) ) break; |
---|
1168 | if ( ( is_rx == 0 ) && ( ker_sts == 0 ) ) break; |
---|
1169 | } |
---|
1170 | |
---|
1171 | // compute kernel buffer physical address |
---|
1172 | ker_buf_paddr = (ker_buf_desc & 0xFFFFFFFFFC000000ULL) >> 20; |
---|
1173 | |
---|
1174 | // move one container |
---|
1175 | if ( is_rx ) // RX transfer |
---|
1176 | { |
---|
1177 | // inval kernel buffer in L2 before read in L2 |
---|
1178 | _mmc_inval( ker_buf_paddr, NIC_CONTAINER_SIZE ); |
---|
1179 | |
---|
1180 | // transfer data from kernel buffer to user buffer |
---|
1181 | _physical_memcpy( usr_buf_paddr, |
---|
1182 | ker_buf_paddr, |
---|
1183 | NIC_CONTAINER_SIZE ); |
---|
1184 | #if GIET_DEBUG_NIC |
---|
1185 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer kernel buffer %l\n" |
---|
1186 | " to user buffer %l at cycle %d\n", |
---|
1187 | thread , ker_buf_paddr , usr_buf_paddr , _get_proctime() ); |
---|
1188 | #endif |
---|
1189 | |
---|
1190 | } |
---|
1191 | else // TX transfer |
---|
1192 | { |
---|
1193 | // transfer data from user buffer to kernel buffer |
---|
1194 | _physical_memcpy( ker_buf_paddr, |
---|
1195 | usr_buf_paddr, |
---|
1196 | NIC_CONTAINER_SIZE ); |
---|
1197 | |
---|
1198 | // sync kernel buffer in L2 after write in L2 |
---|
1199 | _mmc_sync( ker_buf_paddr, NIC_CONTAINER_SIZE ); |
---|
1200 | |
---|
1201 | #if GIET_DEBUG_NIC |
---|
1202 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer " |
---|
1203 | "user buffer %l to kernel buffer %l at cycle %d\n", |
---|
1204 | thread , usr_buf_paddr , ker_buf_paddr , _get_proctime() ); |
---|
1205 | #endif |
---|
1206 | |
---|
1207 | } |
---|
1208 | |
---|
1209 | // update kernel chbuf status |
---|
1210 | if ( is_rx ) _physical_write ( ker_sts_paddr, 0 ); |
---|
1211 | else _physical_write ( ker_sts_paddr, 0x1 ); |
---|
1212 | |
---|
1213 | // sync kernel chbuf in L2 after write in L2 |
---|
1214 | _mmc_sync( ker_sts_paddr, 4 ); |
---|
1215 | |
---|
1216 | #if GIET_DEBUG_NIC |
---|
1217 | _printf("\n[GIET DEBUG NIC] Task %d get buffer %d and exit _sys_nic_move() at cycle %d\n", |
---|
1218 | thread , index , _get_proctime() ); |
---|
1219 | #endif |
---|
1220 | |
---|
1221 | return 0; |
---|
1222 | } // end _sys_nic_move() |
---|
1223 | |
---|
1224 | |
---|
1225 | //////////////////////////////////////// |
---|
1226 | int _sys_nic_stop( unsigned int is_rx, |
---|
1227 | unsigned int channel ) |
---|
1228 | { |
---|
1229 | unsigned int nic_channel; |
---|
1230 | unsigned int cma_channel; |
---|
1231 | |
---|
1232 | // get NIC channel index and CMA channel index |
---|
1233 | if ( is_rx ) |
---|
1234 | { |
---|
1235 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1236 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
1237 | } |
---|
1238 | else |
---|
1239 | { |
---|
1240 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1241 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
1242 | } |
---|
1243 | |
---|
1244 | // check NIC and CMA channels index |
---|
1245 | if ( nic_channel != channel ) |
---|
1246 | { |
---|
1247 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal NIC channel\n"); |
---|
1248 | return -1; |
---|
1249 | } |
---|
1250 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
1251 | { |
---|
1252 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal CMA channel\n"); |
---|
1253 | return -1; |
---|
1254 | } |
---|
1255 | |
---|
1256 | // desactivates the NIC channel |
---|
1257 | _nic_channel_stop( nic_channel, is_rx ); |
---|
1258 | |
---|
1259 | // desactivates the CMA channel |
---|
1260 | _cma_set_register( cma_channel, CHBUF_RUN , 0 ); |
---|
1261 | |
---|
1262 | return 0; |
---|
1263 | } // end _sys_nic_stop() |
---|
1264 | |
---|
1265 | //////////////////////////////////////// |
---|
1266 | int _sys_nic_clear( unsigned int is_rx, |
---|
1267 | unsigned int channel ) |
---|
1268 | { |
---|
1269 | unsigned int nic_channel; |
---|
1270 | |
---|
1271 | // get NIC channel |
---|
1272 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1273 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1274 | |
---|
1275 | if ( nic_channel != channel ) |
---|
1276 | { |
---|
1277 | _printf("\n[GIET_ERROR] in _sys_nic_clear(): illegal NIC channel\n"); |
---|
1278 | return -1; |
---|
1279 | } |
---|
1280 | |
---|
1281 | if ( is_rx ) |
---|
1282 | { |
---|
1283 | _nic_set_global_register( NIC_G_NPKT_RX_G2S_RECEIVED , 0 ); |
---|
1284 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL , 0 ); |
---|
1285 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_BIG , 0 ); |
---|
1286 | _nic_set_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL , 0 ); |
---|
1287 | _nic_set_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL , 0 ); |
---|
1288 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_RECEIVED , 0 ); |
---|
1289 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST , 0 ); |
---|
1290 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL , 0 ); |
---|
1291 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL , 0 ); |
---|
1292 | } |
---|
1293 | else |
---|
1294 | { |
---|
1295 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED , 0 ); |
---|
1296 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TRANSMIT , 0 ); |
---|
1297 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG , 0 ); |
---|
1298 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL , 0 ); |
---|
1299 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL , 0 ); |
---|
1300 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS , 0 ); |
---|
1301 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST , 0 ); |
---|
1302 | } |
---|
1303 | return 0; |
---|
1304 | } // en _sys_nic_clear() |
---|
1305 | |
---|
1306 | //////////////////////////////////////// |
---|
1307 | int _sys_nic_stats( unsigned int is_rx, |
---|
1308 | unsigned int channel ) |
---|
1309 | { |
---|
1310 | unsigned int nic_channel; |
---|
1311 | |
---|
1312 | // get NIC channel |
---|
1313 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
1314 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
1315 | |
---|
1316 | if ( nic_channel != channel ) |
---|
1317 | { |
---|
1318 | _printf("\n[GIET_ERROR] in _sys_nic_stats(): illegal NIC channel\n"); |
---|
1319 | return -1; |
---|
1320 | } |
---|
1321 | |
---|
1322 | if ( is_rx ) |
---|
1323 | { |
---|
1324 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_RX_G2S_RECEIVED ); |
---|
1325 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL ); |
---|
1326 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_BIG ); |
---|
1327 | unsigned int fifo_full = _nic_get_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL ); |
---|
1328 | unsigned int crc_fail = _nic_get_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL ); |
---|
1329 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST ); |
---|
1330 | unsigned int dst_fail = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL ); |
---|
1331 | unsigned int ch_full = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL ); |
---|
1332 | |
---|
1333 | _printf("\n### Network Controller RX Statistics ###\n" |
---|
1334 | "- packets received : %d\n" |
---|
1335 | "- too small : %d\n" |
---|
1336 | "- too big : %d\n" |
---|
1337 | "- fifo full : %d\n" |
---|
1338 | "- crc fail : %d\n" |
---|
1339 | "- dst mac fail : %d\n" |
---|
1340 | "- channel full : %d\n" |
---|
1341 | "- broadcast : %d\n", |
---|
1342 | received, |
---|
1343 | too_small, |
---|
1344 | too_big, |
---|
1345 | fifo_full, |
---|
1346 | crc_fail, |
---|
1347 | dst_fail, |
---|
1348 | ch_full, |
---|
1349 | broadcast ); |
---|
1350 | } |
---|
1351 | else |
---|
1352 | { |
---|
1353 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED ); |
---|
1354 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG ); |
---|
1355 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL ); |
---|
1356 | unsigned int src_fail = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL ); |
---|
1357 | unsigned int bypass = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS ); |
---|
1358 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST ); |
---|
1359 | |
---|
1360 | _printf("\n### Network Controller TX Statistics ###\n" |
---|
1361 | "- packets received : %d\n" |
---|
1362 | "- too small : %d\n" |
---|
1363 | "- too big : %d\n" |
---|
1364 | "- src mac fail : %d\n" |
---|
1365 | "- bypass : %d\n" |
---|
1366 | "- broadcast : %d\n", |
---|
1367 | received, |
---|
1368 | too_big, |
---|
1369 | too_small, |
---|
1370 | src_fail, |
---|
1371 | bypass, |
---|
1372 | broadcast ); |
---|
1373 | } |
---|
1374 | return 0; |
---|
1375 | } // end _sys_nic_stats() |
---|
1376 | |
---|
1377 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1378 | // FBF related syscall handlers |
---|
1379 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1380 | |
---|
1381 | ///////////////////////////////////////////// |
---|
1382 | int _sys_fbf_sync_write( unsigned int offset, |
---|
1383 | void* buffer, |
---|
1384 | unsigned int length ) |
---|
1385 | { |
---|
1386 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
1387 | memcpy( fbf_address, buffer, length); |
---|
1388 | |
---|
1389 | return 0; |
---|
1390 | } |
---|
1391 | |
---|
1392 | ///////////////////////////////////////////// |
---|
1393 | int _sys_fbf_sync_read( unsigned int offset, |
---|
1394 | void* buffer, |
---|
1395 | unsigned int length ) |
---|
1396 | { |
---|
1397 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
1398 | memcpy( buffer, fbf_address, length); |
---|
1399 | |
---|
1400 | return 0; |
---|
1401 | } |
---|
1402 | |
---|
1403 | //////////////////////// |
---|
1404 | int _sys_fbf_cma_alloc() |
---|
1405 | { |
---|
1406 | // get a new CMA channel index |
---|
1407 | unsigned int channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
---|
1408 | |
---|
1409 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1410 | { |
---|
1411 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : not enough CMA channels\n"); |
---|
1412 | return -1; |
---|
1413 | } |
---|
1414 | else |
---|
1415 | { |
---|
1416 | _set_context_slot( CTX_CMA_FB_ID, channel ); |
---|
1417 | return 0; |
---|
1418 | } |
---|
1419 | } // end sys_fbf_cma_alloc() |
---|
1420 | |
---|
1421 | |
---|
1422 | //////////////////////// |
---|
1423 | int _sys_fbf_cma_init_buf(void* buf0_vbase, |
---|
1424 | void* buf1_vbase, |
---|
1425 | void* sts0_vaddr, |
---|
1426 | void* sts1_vaddr ) |
---|
1427 | { |
---|
1428 | #if NB_CMA_CHANNELS > 0 |
---|
1429 | |
---|
1430 | unsigned int vaddr; // virtual address |
---|
1431 | unsigned int flags; // for _v2p_translate() |
---|
1432 | unsigned long long fbf_paddr; // fbf physical address |
---|
1433 | unsigned long long fbf_sts_paddr; // fbf status physical address |
---|
1434 | unsigned long long buf0_pbase; // buffer 0 base physical address |
---|
1435 | unsigned long long sts0_paddr; // buffer 0 status physical address |
---|
1436 | unsigned long long buf1_pbase; // buffer 1 base physical address |
---|
1437 | unsigned long long sts1_paddr; // buffer 1 status physical address |
---|
1438 | |
---|
1439 | // get channel index |
---|
1440 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1441 | |
---|
1442 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1443 | { |
---|
1444 | _printf("\n[GIET ERROR] in _fbf_cma_init_buf() : CMA channel index too large\n"); |
---|
1445 | return -1; |
---|
1446 | } |
---|
1447 | |
---|
1448 | #if GIET_DEBUG_FBF_CMA |
---|
1449 | _printf("\n[FBF_CMA DEBUG] enters _sys_fbf_cma_init_buf()\n" |
---|
1450 | " - channel = %d\n" |
---|
1451 | " - buf0 vbase = %x\n" |
---|
1452 | " - buf1 vbase = %x\n" |
---|
1453 | " - sts0 vaddr = %x\n" |
---|
1454 | " - sts1 vaddr = %x\n", |
---|
1455 | channel, |
---|
1456 | (unsigned int)buf0_vbase, |
---|
1457 | (unsigned int)buf1_vbase, |
---|
1458 | (unsigned int)sts0_vaddr, |
---|
1459 | (unsigned int)sts1_vaddr ); |
---|
1460 | #endif |
---|
1461 | |
---|
1462 | // checking user buffers virtual addresses alignment |
---|
1463 | if ( ((unsigned int)buf0_vbase & 0x3F) || |
---|
1464 | ((unsigned int)buf1_vbase & 0x3F) ) |
---|
1465 | { |
---|
1466 | _printf("\n[GIET ERROR] in _fbf_cma_inti_buf() : user buffer not aligned\n"); |
---|
1467 | return -1; |
---|
1468 | } |
---|
1469 | |
---|
1470 | // checking user buffers status virtual addresses alignment |
---|
1471 | if ( ((unsigned int)sts0_vaddr & 0x3F) || |
---|
1472 | ((unsigned int)sts1_vaddr & 0x3F) ) |
---|
1473 | { |
---|
1474 | _printf("\n[GIET ERROR] in _fbf_cma_init_buf() : user buffer status not aligned\n"); |
---|
1475 | return -1; |
---|
1476 | } |
---|
1477 | |
---|
1478 | // compute frame buffer physical address and initialize _fbf_chbuf[channel] |
---|
1479 | vaddr = (unsigned int)SEG_FBF_BASE; |
---|
1480 | fbf_paddr = _v2p_translate( vaddr , &flags ); |
---|
1481 | vaddr = (unsigned int)&_fbf_status[channel]; |
---|
1482 | fbf_sts_paddr = _v2p_translate( vaddr , &flags ); |
---|
1483 | |
---|
1484 | _fbf_chbuf[channel].fbf_desc = |
---|
1485 | (unsigned long long) ((fbf_sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
1486 | (((fbf_paddr & 0xFFFFFFFFULL) >> 6 ) << 26); |
---|
1487 | |
---|
1488 | // Compute user buffer 0 physical addresses and intialize _fbf_chbuf[channel] |
---|
1489 | vaddr = (unsigned int)buf0_vbase; |
---|
1490 | buf0_pbase = _v2p_translate( vaddr , &flags ); |
---|
1491 | if ((flags & PTE_U) == 0) |
---|
1492 | { |
---|
1493 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf0 not in user space\n"); |
---|
1494 | return -1; |
---|
1495 | } |
---|
1496 | |
---|
1497 | vaddr = (unsigned int)sts0_vaddr; |
---|
1498 | sts0_paddr = _v2p_translate( vaddr , &flags ); |
---|
1499 | if ((flags & PTE_U) == 0) |
---|
1500 | { |
---|
1501 | _printf("\n[GIET ERROR] in _fbf_cma_start() : sts0 not in user space\n"); |
---|
1502 | return -1; |
---|
1503 | } |
---|
1504 | |
---|
1505 | _fbf_chbuf[channel].buf0_desc = |
---|
1506 | (unsigned long long) ((sts0_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
1507 | (((buf0_pbase & 0xFFFFFFFFULL) >> 6 ) << 26); |
---|
1508 | |
---|
1509 | // Compute user buffer 1 physical addresses and intialize _fbf_chbuf[channel] |
---|
1510 | vaddr = (unsigned int)buf1_vbase; |
---|
1511 | buf1_pbase = _v2p_translate( vaddr , &flags ); |
---|
1512 | if ((flags & PTE_U) == 0) |
---|
1513 | { |
---|
1514 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf1 not in user space\n"); |
---|
1515 | return -1; |
---|
1516 | } |
---|
1517 | |
---|
1518 | vaddr = (unsigned int)sts1_vaddr; |
---|
1519 | sts1_paddr = _v2p_translate( vaddr , &flags ); |
---|
1520 | if ((flags & PTE_U) == 0) |
---|
1521 | { |
---|
1522 | _printf("\n[GIET ERROR] in _fbf_cma_start() : sts1 not in user space\n"); |
---|
1523 | return -1; |
---|
1524 | } |
---|
1525 | |
---|
1526 | _fbf_chbuf[channel].buf1_desc = |
---|
1527 | (unsigned long long) ((sts1_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
1528 | (((buf1_pbase & 0xFFFFFFFFULL) >> 6 ) << 26); |
---|
1529 | |
---|
1530 | // Compute and register physical adress of the fbf_chbuf descriptor |
---|
1531 | vaddr = (unsigned int)&_fbf_chbuf[channel]; |
---|
1532 | _fbf_chbuf_paddr[channel] = _v2p_translate( vaddr , &flags ); |
---|
1533 | |
---|
1534 | #if GIET_DEBUG_FBF_CMA |
---|
1535 | _printf(" - fbf pbase = %l\n" |
---|
1536 | " - fbf status paddr = %l\n" |
---|
1537 | " - buf0 pbase = %l\n" |
---|
1538 | " - buf0 status paddr = %l\n" |
---|
1539 | " - buf1 pbase = %l\n" |
---|
1540 | " - buf0 status paddr = %l\n" |
---|
1541 | " - chbuf pbase = %l\n", |
---|
1542 | fbf_paddr, |
---|
1543 | fbf_sts_paddr, |
---|
1544 | buf0_pbase, |
---|
1545 | sts0_paddr, |
---|
1546 | buf1_pbase, |
---|
1547 | sts1_paddr, |
---|
1548 | _fbf_chbuf_paddr[channel] ); |
---|
1549 | #endif |
---|
1550 | |
---|
1551 | return 0; |
---|
1552 | |
---|
1553 | #else |
---|
1554 | |
---|
1555 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : NB_CMA_CHANNELS = 0\n"); |
---|
1556 | return -1; |
---|
1557 | |
---|
1558 | #endif |
---|
1559 | } // end sys_fbf_cma_init_buf() |
---|
1560 | |
---|
1561 | //////////////////////////////////////////// |
---|
1562 | int _sys_fbf_cma_start( unsigned int length ) |
---|
1563 | { |
---|
1564 | #if NB_CMA_CHANNELS > 0 |
---|
1565 | |
---|
1566 | // get channel index |
---|
1567 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1568 | |
---|
1569 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1570 | { |
---|
1571 | _printf("\n[GIET ERROR] in _fbf_cma_start() : CMA channel index too large\n"); |
---|
1572 | return -1; |
---|
1573 | } |
---|
1574 | |
---|
1575 | // check buffers initialization |
---|
1576 | if ( ( _fbf_chbuf[channel].buf0_desc == 0x0ULL ) && |
---|
1577 | ( _fbf_chbuf[channel].buf1_desc == 0x0ULL) && |
---|
1578 | ( _fbf_chbuf[channel].fbf_desc == 0x0ULL) ) |
---|
1579 | { |
---|
1580 | _printf("\n[GIET ERROR] in _sys_fbf_cma_start() :\n" |
---|
1581 | "Buffer initialization has not been done\n"); |
---|
1582 | return -1; |
---|
1583 | } |
---|
1584 | |
---|
1585 | // initializes buffer length |
---|
1586 | _fbf_chbuf[channel].length = length; |
---|
1587 | |
---|
1588 | if ( USE_IOB ) |
---|
1589 | { |
---|
1590 | // SYNC request for fbf_chbuf descriptor |
---|
1591 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof( fbf_chbuf_t ) ); |
---|
1592 | } |
---|
1593 | |
---|
1594 | // start CMA transfer |
---|
1595 | unsigned long long paddr = _fbf_chbuf_paddr[channel]; |
---|
1596 | unsigned int src_chbuf_paddr_lsb = (unsigned int)(paddr & 0xFFFFFFFF); |
---|
1597 | unsigned int src_chbuf_paddr_ext = (unsigned int)(paddr >> 32); |
---|
1598 | unsigned int dst_chbuf_paddr_lsb = src_chbuf_paddr_lsb + 16; |
---|
1599 | unsigned int dst_chbuf_paddr_ext = src_chbuf_paddr_ext; |
---|
1600 | |
---|
1601 | _cma_set_register( channel, CHBUF_SRC_DESC , src_chbuf_paddr_lsb ); |
---|
1602 | _cma_set_register( channel, CHBUF_SRC_EXT , src_chbuf_paddr_ext ); |
---|
1603 | _cma_set_register( channel, CHBUF_SRC_NBUFS, 2 ); |
---|
1604 | _cma_set_register( channel, CHBUF_DST_DESC , dst_chbuf_paddr_lsb ); |
---|
1605 | _cma_set_register( channel, CHBUF_DST_EXT , dst_chbuf_paddr_ext ); |
---|
1606 | _cma_set_register( channel, CHBUF_DST_NBUFS, 1 ); |
---|
1607 | _cma_set_register( channel, CHBUF_BUF_SIZE , length ); |
---|
1608 | _cma_set_register( channel, CHBUF_PERIOD , 300 ); |
---|
1609 | _cma_set_register( channel, CHBUF_RUN , 1 ); |
---|
1610 | |
---|
1611 | return 0; |
---|
1612 | |
---|
1613 | #else |
---|
1614 | |
---|
1615 | _printf("\n[GIET ERROR] in _sys_fbf_cma_start() : NB_CMA_CHANNELS = 0\n"); |
---|
1616 | return -1; |
---|
1617 | |
---|
1618 | #endif |
---|
1619 | } // end _sys_fbf_cma_start() |
---|
1620 | |
---|
1621 | ///////////////////////////////////////////////////// |
---|
1622 | int _sys_fbf_cma_display( unsigned int buffer_index ) |
---|
1623 | { |
---|
1624 | #if NB_CMA_CHANNELS > 0 |
---|
1625 | |
---|
1626 | volatile unsigned int full = 1; |
---|
1627 | |
---|
1628 | // get channel index |
---|
1629 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1630 | |
---|
1631 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1632 | { |
---|
1633 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
---|
1634 | "CMA channel index too large\n"); |
---|
1635 | return -1; |
---|
1636 | } |
---|
1637 | |
---|
1638 | // get fbf_chbuf descriptor pointer |
---|
1639 | fbf_chbuf_t* pdesc = &_fbf_chbuf[channel]; |
---|
1640 | |
---|
1641 | #if GIET_DEBUG_FBF_CMA |
---|
1642 | _printf("\n[FBF_CMA DEBUG] enters _sys_fb_cma_display()\n" |
---|
1643 | " - cma channel = %d\n" |
---|
1644 | " - buffer index = %d\n" |
---|
1645 | " - buf0_desc value = %l\n" |
---|
1646 | " - buf1_desc value = %l\n" |
---|
1647 | " - fbf_desc value = %l\n", |
---|
1648 | channel , buffer_index, |
---|
1649 | _fbf_chbuf[channel].buf0_desc, |
---|
1650 | _fbf_chbuf[channel].buf1_desc, |
---|
1651 | _fbf_chbuf[channel].fbf_desc ); |
---|
1652 | #endif |
---|
1653 | |
---|
1654 | unsigned long long buf_sts_paddr; |
---|
1655 | unsigned long long buf_paddr; |
---|
1656 | unsigned long long fbf_sts_paddr; |
---|
1657 | |
---|
1658 | if ( buffer_index == 0 ) // user buffer 0 |
---|
1659 | { |
---|
1660 | buf_sts_paddr = |
---|
1661 | ((pdesc->buf0_desc & 0xFFF0000000000000ULL) >> 20) + // compute address extension |
---|
1662 | ((pdesc->buf0_desc & 0x3FFFFFFULL) << 6); // compute 32 LSB of the address |
---|
1663 | |
---|
1664 | buf_paddr = |
---|
1665 | (pdesc->buf0_desc & 0xFFFFFFFFFC000000ULL) >> 20; // compute the entire address |
---|
1666 | } |
---|
1667 | else // user buffer 1 |
---|
1668 | { |
---|
1669 | buf_sts_paddr = |
---|
1670 | ((pdesc->buf1_desc & 0xFFF0000000000000ULL) >> 20) + |
---|
1671 | ((pdesc->buf1_desc & 0x3FFFFFFULL) << 6); |
---|
1672 | |
---|
1673 | buf_paddr = |
---|
1674 | (pdesc->buf1_desc & 0xFFFFFFFFFC000000ULL) >> 20; |
---|
1675 | } |
---|
1676 | |
---|
1677 | fbf_sts_paddr = |
---|
1678 | ((pdesc->fbf_desc & 0xFFF0000000000000ULL) >> 20) + |
---|
1679 | ((pdesc->fbf_desc & 0x3FFFFFFULL) << 6); |
---|
1680 | |
---|
1681 | #if GIET_DEBUG_FBF_CMA |
---|
1682 | _printf(" - fbf status paddr = %l\n" |
---|
1683 | " - buf pbase = %l\n" |
---|
1684 | " - buf status paddr = %l\n", |
---|
1685 | fbf_sts_paddr, |
---|
1686 | buf_paddr, |
---|
1687 | buf_sts_paddr ); |
---|
1688 | #endif |
---|
1689 | |
---|
1690 | // waiting user buffer released by the CMA component) |
---|
1691 | while ( full ) |
---|
1692 | { |
---|
1693 | // INVAL L2 cache copy of user buffer descriptor, |
---|
1694 | // because it has been modified in RAM by the CMA component |
---|
1695 | _mmc_inval( buf_sts_paddr , 4 ); |
---|
1696 | |
---|
1697 | full = _physical_read( buf_sts_paddr ); |
---|
1698 | } |
---|
1699 | |
---|
1700 | // SYNC request for the user buffer, because |
---|
1701 | // it will be read from XRAM by the CMA component |
---|
1702 | _mmc_sync( buf_paddr , pdesc->length ); |
---|
1703 | |
---|
1704 | // set user buffer status |
---|
1705 | _physical_write( buf_sts_paddr, 0x1 ); |
---|
1706 | |
---|
1707 | // reset fbf buffer status |
---|
1708 | _physical_write( fbf_sts_paddr, 0x0 ); |
---|
1709 | |
---|
1710 | // SYNC request, because these buffer descriptors |
---|
1711 | // will be read from XRAM by the CMA component |
---|
1712 | _mmc_sync( buf_sts_paddr, 4 ); |
---|
1713 | _mmc_sync( fbf_sts_paddr, 4 ); |
---|
1714 | |
---|
1715 | return 0; |
---|
1716 | |
---|
1717 | #else |
---|
1718 | |
---|
1719 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : no CMA channel allocated\n"); |
---|
1720 | return -1; |
---|
1721 | |
---|
1722 | #endif |
---|
1723 | } // end _sys_fbf_cma_display() |
---|
1724 | |
---|
1725 | /////////////////////// |
---|
1726 | int _sys_fbf_cma_stop() |
---|
1727 | { |
---|
1728 | #if NB_CMA_CHANNELS > 0 |
---|
1729 | |
---|
1730 | // get channel index |
---|
1731 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
1732 | |
---|
1733 | if ( channel >= NB_CMA_CHANNELS ) |
---|
1734 | { |
---|
1735 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : CMA channel index too large\n"); |
---|
1736 | return -1; |
---|
1737 | } |
---|
1738 | |
---|
1739 | // Desactivate CMA channel |
---|
1740 | _cma_set_register( channel, CHBUF_RUN, 0 ); |
---|
1741 | |
---|
1742 | return 0; |
---|
1743 | |
---|
1744 | #else |
---|
1745 | |
---|
1746 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : no CMA channel allocated\n"); |
---|
1747 | return -1; |
---|
1748 | |
---|
1749 | #endif |
---|
1750 | } // end _sys_fbf_cma_stop() |
---|
1751 | |
---|
1752 | |
---|
1753 | ////////////////////////////////////////////////////////////////////////////// |
---|
1754 | // Miscelaneous syscall handlers |
---|
1755 | ////////////////////////////////////////////////////////////////////////////// |
---|
1756 | |
---|
1757 | /////////////// |
---|
1758 | int _sys_ukn() |
---|
1759 | { |
---|
1760 | _printf("\n[GIET ERROR] Undefined System Call / EPC = %x\n", _get_epc() ); |
---|
1761 | return -1; |
---|
1762 | } |
---|
1763 | |
---|
1764 | //////////////////////////////////// |
---|
1765 | int _sys_proc_xyp( unsigned int* x, |
---|
1766 | unsigned int* y, |
---|
1767 | unsigned int* p ) |
---|
1768 | { |
---|
1769 | unsigned int gpid = _get_procid(); // global processor index from CPO register |
---|
1770 | |
---|
1771 | *x = (gpid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
---|
1772 | *y = (gpid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
1773 | *p = gpid & ((1<<P_WIDTH)-1); |
---|
1774 | |
---|
1775 | return 0; |
---|
1776 | } |
---|
1777 | |
---|
1778 | ////////////////////////////////// |
---|
1779 | int _sys_task_exit( char* string ) |
---|
1780 | { |
---|
1781 | unsigned int date = _get_proctime(); |
---|
1782 | |
---|
1783 | unsigned int gpid = _get_procid(); |
---|
1784 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
1785 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
1786 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
1787 | unsigned int lpid = gpid & ((1<<P_WIDTH)-1); |
---|
1788 | |
---|
1789 | unsigned int task_id = _get_context_slot(CTX_LTID_ID); |
---|
1790 | |
---|
1791 | // print exit message |
---|
1792 | _printf("\n[GIET] Exit task %d on processor[%d,%d,%d] at cycle %d" |
---|
1793 | "\n Cause : %s\n\n", |
---|
1794 | task_id, x, y, lpid, date, string ); |
---|
1795 | |
---|
1796 | // goes to sleeping state |
---|
1797 | _set_context_slot(CTX_RUN_ID, 0); |
---|
1798 | |
---|
1799 | // deschedule |
---|
1800 | _sys_context_switch(); |
---|
1801 | |
---|
1802 | return 0; |
---|
1803 | } |
---|
1804 | |
---|
1805 | ///////////////////////// |
---|
1806 | int _sys_context_switch() |
---|
1807 | { |
---|
1808 | unsigned int save_sr; |
---|
1809 | |
---|
1810 | _it_disable( &save_sr ); |
---|
1811 | _ctx_switch(); |
---|
1812 | _it_restore( &save_sr ); |
---|
1813 | |
---|
1814 | return 0; |
---|
1815 | } |
---|
1816 | |
---|
1817 | //////////////////////// |
---|
1818 | int _sys_local_task_id() |
---|
1819 | { |
---|
1820 | return _get_context_slot(CTX_LTID_ID); |
---|
1821 | } |
---|
1822 | |
---|
1823 | ///////////////////////// |
---|
1824 | int _sys_global_task_id() |
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1825 | { |
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1826 | return _get_context_slot(CTX_GTID_ID); |
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1827 | } |
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1828 | |
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1829 | //////////////////// |
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1830 | int _sys_thread_id() |
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1831 | { |
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1832 | return _get_context_slot(CTX_TRDID_ID); |
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1833 | } |
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1834 | |
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1835 | //////////////////////////////////////////// |
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1836 | int _sys_procs_number( unsigned int* x_size, |
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1837 | unsigned int* y_size, |
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1838 | unsigned int* nprocs ) |
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1839 | { |
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1840 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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1841 | mapping_cluster_t * cluster = _get_cluster_base(header); |
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1842 | |
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1843 | unsigned int x; |
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1844 | unsigned int y; |
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1845 | unsigned int okmin = 1; |
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1846 | unsigned int okmax = 1; |
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1847 | |
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1848 | // compute max values |
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1849 | unsigned int xmax = header->x_size; |
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1850 | unsigned int ymax = header->y_size; |
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1851 | unsigned int procs = cluster[0].procs; |
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1852 | |
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1853 | // check the (ymax-1) lower rows |
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1854 | for ( y = 0 ; y < ymax-1 ; y++ ) |
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1855 | { |
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1856 | for ( x = 0 ; x < xmax ; x++ ) |
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1857 | { |
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1858 | if (cluster[x*ymax+y].procs != procs ) okmin = 0; |
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1859 | } |
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1860 | } |
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1861 | |
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1862 | // check the upper row |
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1863 | for ( x = 0 ; x < xmax ; x++ ) |
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1864 | { |
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1865 | if (cluster[x*ymax+ymax-1].procs != procs ) okmax = 0; |
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1866 | } |
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1867 | |
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1868 | // return values |
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1869 | if ( okmin && okmax ) |
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1870 | { |
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1871 | *x_size = xmax; |
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1872 | *y_size = ymax; |
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1873 | *nprocs = procs; |
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1874 | } |
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1875 | else if ( okmin ) |
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1876 | { |
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1877 | *x_size = xmax; |
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1878 | *y_size = ymax-1; |
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1879 | *nprocs = procs; |
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1880 | } |
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1881 | else |
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1882 | { |
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1883 | *x_size = 0; |
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1884 | *y_size = 0; |
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1885 | *nprocs = 0; |
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1886 | } |
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1887 | return 0; |
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1888 | } |
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1889 | |
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1890 | /////////////////////////////////////////////////////// |
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1891 | int _sys_vseg_get_vbase( char* vspace_name, |
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1892 | char* vseg_name, |
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1893 | unsigned int* vbase ) |
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1894 | { |
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1895 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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1896 | mapping_vspace_t * vspace = _get_vspace_base(header); |
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1897 | mapping_vseg_t * vseg = _get_vseg_base(header); |
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1898 | |
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1899 | unsigned int vspace_id; |
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1900 | unsigned int vseg_id; |
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1901 | |
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1902 | // scan vspaces |
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1903 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
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1904 | { |
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1905 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
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1906 | { |
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1907 | // scan vsegs |
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1908 | for (vseg_id = vspace[vspace_id].vseg_offset; |
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1909 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
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1910 | vseg_id++) |
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1911 | { |
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1912 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
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1913 | { |
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1914 | *vbase = vseg[vseg_id].vbase; |
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1915 | return 0; |
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1916 | } |
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1917 | } |
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1918 | } |
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1919 | } |
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1920 | return -1; // not found |
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1921 | } |
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1922 | |
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1923 | ///////////////////////////////////////////////////////// |
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1924 | int _sys_vseg_get_length( char* vspace_name, |
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1925 | char* vseg_name, |
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1926 | unsigned int* length ) |
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1927 | { |
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1928 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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1929 | mapping_vspace_t * vspace = _get_vspace_base(header); |
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1930 | mapping_vseg_t * vseg = _get_vseg_base(header); |
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1931 | |
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1932 | unsigned int vspace_id; |
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1933 | unsigned int vseg_id; |
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1934 | |
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1935 | // scan vspaces |
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1936 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
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1937 | { |
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1938 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
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1939 | { |
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1940 | // scan vsegs |
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1941 | for (vseg_id = vspace[vspace_id].vseg_offset; |
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1942 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
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1943 | vseg_id++) |
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1944 | { |
---|
1945 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
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1946 | { |
---|
1947 | *length = vseg[vseg_id].length; |
---|
1948 | return 0; |
---|
1949 | } |
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1950 | } |
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1951 | } |
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1952 | } |
---|
1953 | return -1; // not found |
---|
1954 | } |
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1955 | |
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1956 | //////////////////////////////////////// |
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1957 | int _sys_xy_from_ptr( void* ptr, |
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1958 | unsigned int* x, |
---|
1959 | unsigned int* y ) |
---|
1960 | { |
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1961 | unsigned int flags; |
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1962 | unsigned long long paddr = _v2p_translate( (unsigned int)ptr , &flags ); |
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1963 | |
---|
1964 | *x = (paddr>>36) & 0xF; |
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1965 | *y = (paddr>>32) & 0xF; |
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1966 | |
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1967 | return 0; |
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1968 | } |
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1969 | |
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1970 | ///////////////////////////////////////// |
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1971 | int _sys_heap_info( unsigned int* vaddr, |
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1972 | unsigned int* length, |
---|
1973 | unsigned int x, |
---|
1974 | unsigned int y ) |
---|
1975 | { |
---|
1976 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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1977 | mapping_task_t * task = _get_task_base(header); |
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1978 | mapping_vseg_t * vseg = _get_vseg_base(header); |
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1979 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
1980 | |
---|
1981 | unsigned int task_id; |
---|
1982 | unsigned int vspace_id; |
---|
1983 | unsigned int vseg_id = 0xFFFFFFFF; |
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1984 | |
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1985 | // searching the heap vseg |
---|
1986 | if ( (x < X_SIZE) && (y < Y_SIZE) ) // searching a task in cluster(x,y) |
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1987 | { |
---|
1988 | // get vspace global index |
---|
1989 | vspace_id = _get_context_slot(CTX_VSID_ID); |
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1990 | |
---|
1991 | // scan all tasks in vspace |
---|
1992 | unsigned int min = vspace[vspace_id].task_offset ; |
---|
1993 | unsigned int max = min + vspace[vspace_id].tasks ; |
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1994 | for ( task_id = min ; task_id < max ; task_id++ ) |
---|
1995 | { |
---|
1996 | if ( task[task_id].clusterid == (x * Y_SIZE + y) ) |
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1997 | { |
---|
1998 | vseg_id = task[task_id].heap_vseg_id; |
---|
1999 | if ( vseg_id != 0xFFFFFFFF ) break; |
---|
2000 | } |
---|
2001 | } |
---|
2002 | } |
---|
2003 | else // searching in the calling task |
---|
2004 | { |
---|
2005 | task_id = _get_context_slot(CTX_GTID_ID); |
---|
2006 | vseg_id = task[task_id].heap_vseg_id; |
---|
2007 | } |
---|
2008 | |
---|
2009 | // analysing the vseg_id |
---|
2010 | if ( vseg_id != 0xFFFFFFFF ) |
---|
2011 | { |
---|
2012 | *vaddr = vseg[vseg_id].vbase; |
---|
2013 | *length = vseg[vseg_id].length; |
---|
2014 | return 0; |
---|
2015 | } |
---|
2016 | else |
---|
2017 | { |
---|
2018 | *vaddr = 0; |
---|
2019 | *length = 0; |
---|
2020 | return -1; |
---|
2021 | } |
---|
2022 | } // end _sys_heap_info() |
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2023 | |
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2024 | |
---|
2025 | // Local Variables: |
---|
2026 | // tab-width: 4 |
---|
2027 | // c-basic-offset: 4 |
---|
2028 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
---|
2029 | // indent-tabs-mode: nil |
---|
2030 | // End: |
---|
2031 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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2032 | |
---|