1 | /* |
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2 | * cluster.c - Cluster-Manager related operations |
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3 | * |
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4 | * Author Ghassan Almaless (2008,2009,2010,2011,2012) |
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5 | * Mohamed Lamine Karaoui (2015) |
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6 | * Alain Greiner (2016,2017,2018) |
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7 | * |
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8 | * Copyright (c) UPMC Sorbonne Universites |
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9 | * |
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10 | * This file is part of ALMOS-MKH.. |
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11 | * |
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12 | * ALMOS-MKH. is free software; you can redistribute it and/or modify it |
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13 | * under the terms of the GNU General Public License as published by |
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14 | * the Free Software Foundation; version 2.0 of the License. |
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15 | * |
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16 | * ALMOS-MKH. is distributed in the hope that it will be useful, but |
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17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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19 | * General Public License for more details. |
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20 | * |
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21 | * You should have received a copy of the GNU General Public License |
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22 | * along with ALMOS-MKH.; if not, write to the Free Software Foundation, |
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23 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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24 | */ |
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25 | |
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26 | #include <kernel_config.h> |
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27 | #include <hal_kernel_types.h> |
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28 | #include <hal_atomic.h> |
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29 | #include <hal_special.h> |
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30 | #include <hal_ppm.h> |
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31 | #include <remote_fifo.h> |
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32 | #include <printk.h> |
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33 | #include <errno.h> |
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34 | #include <spinlock.h> |
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35 | #include <core.h> |
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36 | #include <chdev.h> |
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37 | #include <scheduler.h> |
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38 | #include <list.h> |
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39 | #include <cluster.h> |
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40 | #include <boot_info.h> |
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41 | #include <bits.h> |
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42 | #include <ppm.h> |
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43 | #include <thread.h> |
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44 | #include <kmem.h> |
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45 | #include <process.h> |
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46 | #include <dqdt.h> |
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47 | #include <cluster_info.h> |
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48 | |
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49 | ///////////////////////////////////////////////////////////////////////////////////// |
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50 | // Extern global variables |
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51 | ///////////////////////////////////////////////////////////////////////////////////// |
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52 | |
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53 | extern process_t process_zero; // allocated in kernel_init.c file |
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54 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c file |
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55 | |
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56 | ///////////////////////////////////////////////n |
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57 | error_t cluster_init( struct boot_info_s * info ) |
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58 | { |
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59 | error_t error; |
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60 | lpid_t lpid; // local process_index |
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61 | lid_t lid; // local core index |
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62 | uint32_t i; // index in loop on external peripherals |
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63 | boot_device_t * dev; // pointer on external peripheral |
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64 | uint32_t func; // external peripheral functionnal type |
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65 | |
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66 | cluster_t * cluster = LOCAL_CLUSTER; |
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67 | |
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68 | // initialize cluster global parameters |
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69 | cluster->paddr_width = info->paddr_width; |
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70 | cluster->x_width = info->x_width; |
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71 | cluster->y_width = info->y_width; |
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72 | cluster->x_size = info->x_size; |
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73 | cluster->y_size = info->y_size; |
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74 | cluster->x_max = info->x_max; // [FIXME] |
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75 | cluster->y_max = info->y_max; // [FIXME] |
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76 | cluster->io_cxy = info->io_cxy; |
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77 | |
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78 | // initialize the cluster_info[][] array |
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79 | int x; |
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80 | int y; |
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81 | for (x = 0; x < CONFIG_MAX_CLUSTERS_X; x++) { |
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82 | for (y = 0; y < CONFIG_MAX_CLUSTERS_Y;y++) { |
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83 | cluster->cluster_info[x][y] = info->cluster_info[x][y]; |
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84 | } |
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85 | } |
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86 | // initialize external peripherals channels |
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87 | for( i = 0 ; i < info->ext_dev_nr ; i++ ) |
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88 | { |
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89 | dev = &info->ext_dev[i]; |
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90 | func = FUNC_FROM_TYPE( dev->type ); |
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91 | if( func == DEV_FUNC_TXT ) cluster->nb_txt_channels = dev->channels; |
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92 | if( func == DEV_FUNC_NIC ) cluster->nb_nic_channels = dev->channels; |
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93 | if( func == DEV_FUNC_IOC ) cluster->nb_ioc_channels = dev->channels; |
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94 | if( func == DEV_FUNC_FBF ) cluster->nb_fbf_channels = dev->channels; |
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95 | } |
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96 | |
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97 | // initialize cluster local parameters |
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98 | cluster->cores_nr = info->cores_nr; |
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99 | |
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100 | // initialize the lock protecting the embedded kcm allocator |
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101 | spinlock_init( &cluster->kcm_lock ); |
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102 | |
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103 | #if DEBUG_CLUSTER_INIT |
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104 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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105 | if( DEBUG_CLUSTER_INIT < cycle ) |
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106 | printk("\n[DBG] %s : thread %x enters for cluster %x / cycle %d\n", |
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107 | __FUNCTION__ , CURRENT_THREAD , local_cxy , cycle ); |
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108 | #endif |
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109 | |
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110 | // initialises DQDT |
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111 | cluster->dqdt_root_level = dqdt_init( info->x_max, // [FIXME] |
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112 | info->y_max, // [FIXME] |
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113 | info->y_width ) - 1; |
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114 | |
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115 | // initialises embedded PPM |
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116 | error = hal_ppm_init( info ); |
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117 | |
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118 | if( error ) |
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119 | { |
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120 | printk("\n[ERROR] in %s : cannot initialize PPM in cluster %x\n", |
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121 | __FUNCTION__ , local_cxy ); |
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122 | return ENOMEM; |
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123 | } |
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124 | |
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125 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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126 | cycle = (uint32_t)hal_get_cycles(); |
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127 | if( DEBUG_CLUSTER_INIT < cycle ) |
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128 | printk("\n[DBG] %s : PPM initialized in cluster %x / cycle %d\n", |
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129 | __FUNCTION__ , local_cxy , cycle ); |
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130 | #endif |
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131 | |
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132 | // initialises embedded KHM |
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133 | khm_init( &cluster->khm ); |
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134 | |
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135 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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136 | cycle = (uint32_t)hal_get_cycles(); |
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137 | if( DEBUG_CLUSTER_INIT < cycle ) |
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138 | printk("\n[DBG] %s : KHM initialized in cluster %x at cycle %d\n", |
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139 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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140 | #endif |
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141 | |
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142 | // initialises embedded KCM |
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143 | kcm_init( &cluster->kcm , KMEM_KCM ); |
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144 | |
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145 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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146 | cycle = (uint32_t)hal_get_cycles(); |
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147 | if( DEBUG_CLUSTER_INIT < cycle ) |
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148 | printk("\n[DBG] %s : KCM initialized in cluster %x at cycle %d\n", |
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149 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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150 | #endif |
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151 | |
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152 | // initialises all cores descriptors |
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153 | for( lid = 0 ; lid < cluster->cores_nr; lid++ ) |
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154 | { |
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155 | core_init( &cluster->core_tbl[lid], // target core descriptor |
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156 | lid, // local core index |
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157 | info->core[lid].gid ); // gid from boot_info_t |
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158 | } |
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159 | |
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160 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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161 | cycle = (uint32_t)hal_get_cycles(); |
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162 | if( DEBUG_CLUSTER_INIT < cycle ) |
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163 | printk("\n[DBG] %s : cores initialized in cluster %x / cycle %d\n", |
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164 | __FUNCTION__ , local_cxy , cycle ); |
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165 | #endif |
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166 | |
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167 | // initialises RPC FIFOs |
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168 | for( lid = 0 ; lid < cluster->cores_nr; lid++ ) |
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169 | { |
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170 | local_fifo_init( &cluster->rpc_fifo[lid] ); |
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171 | cluster->rpc_threads[lid] = 0; |
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172 | } |
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173 | |
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174 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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175 | cycle = (uint32_t)hal_get_cycles(); |
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176 | if( DEBUG_CLUSTER_INIT < cycle ) |
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177 | printk("\n[DBG] %s : RPC fifo inialized in cluster %x at cycle %d\n", |
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178 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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179 | #endif |
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180 | |
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181 | // initialise pref_tbl[] in process manager |
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182 | spinlock_init( &cluster->pmgr.pref_lock ); |
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183 | cluster->pmgr.pref_nr = 0; |
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184 | cluster->pmgr.pref_tbl[0] = XPTR( local_cxy , &process_zero ); |
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185 | for( lpid = 1 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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186 | { |
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187 | cluster->pmgr.pref_tbl[lpid] = XPTR_NULL; |
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188 | } |
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189 | |
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190 | // initialise local_list in process manager |
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191 | remote_spinlock_init( XPTR( local_cxy , &cluster->pmgr.local_lock ) ); |
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192 | xlist_root_init( XPTR( local_cxy , &cluster->pmgr.local_root ) ); |
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193 | cluster->pmgr.local_nr = 0; |
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194 | |
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195 | // initialise copies_lists in process manager |
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196 | for( lpid = 0 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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197 | { |
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198 | remote_spinlock_init( XPTR( local_cxy , &cluster->pmgr.copies_lock[lpid] ) ); |
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199 | cluster->pmgr.copies_nr[lpid] = 0; |
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200 | xlist_root_init( XPTR( local_cxy , &cluster->pmgr.copies_root[lpid] ) ); |
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201 | } |
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202 | |
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203 | #if DEBUG_CLUSTER_INIT |
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204 | cycle = (uint32_t)hal_get_cycles(); |
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205 | if( DEBUG_CLUSTER_INIT < cycle ) |
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206 | printk("\n[DBG] %s , thread %x exit for cluster %x / cycle %d\n", |
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207 | __FUNCTION__ , CURRENT_THREAD , local_cxy , cycle ); |
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208 | #endif |
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209 | |
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210 | hal_fence(); |
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211 | |
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212 | return 0; |
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213 | } // end cluster_init() |
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214 | |
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215 | ///////////////////////////////// |
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216 | cxy_t cluster_random_select( void ) |
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217 | { |
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218 | uint32_t x_size; |
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219 | uint32_t y_size; |
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220 | uint32_t y_width; |
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221 | uint32_t index; |
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222 | uint32_t x; |
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223 | uint32_t y; |
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224 | |
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225 | do { |
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226 | x_size = LOCAL_CLUSTER->x_size; |
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227 | y_size = LOCAL_CLUSTER->y_size; |
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228 | y_width = LOCAL_CLUSTER->y_width; |
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229 | index = ( hal_get_cycles() + hal_get_gid() ) % (x_size * y_size); |
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230 | x = index / y_size; |
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231 | y = index % y_size; |
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232 | } while ( cluster_info_is_active( LOCAL_CLUSTER->cluster_info[x][y] ) == 0 ); |
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233 | |
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234 | return (x<<y_width) + y; |
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235 | } |
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236 | |
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237 | //////////////////////////////////////// |
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238 | bool_t cluster_is_undefined( cxy_t cxy ) |
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239 | { |
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240 | cluster_t * cluster = LOCAL_CLUSTER; |
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241 | |
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242 | uint32_t y_width = cluster->y_width; |
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243 | |
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244 | uint32_t x = cxy >> y_width; |
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245 | uint32_t y = cxy & ((1<<y_width)-1); |
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246 | |
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247 | if( x >= cluster->x_size ) return true; |
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248 | if( y >= cluster->y_size ) return true; |
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249 | |
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250 | return false; |
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251 | } |
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252 | |
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253 | //////////////////////////////////////////////////////////////////////////////////// |
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254 | // Cores related functions |
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255 | //////////////////////////////////////////////////////////////////////////////////// |
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256 | |
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257 | ///////////////////////////////// |
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258 | lid_t cluster_select_local_core( void ) |
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259 | { |
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260 | uint32_t min = 1000; |
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261 | lid_t sel = 0; |
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262 | uint32_t nthreads; |
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263 | lid_t lid; |
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264 | scheduler_t * sched; |
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265 | |
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266 | cluster_t * cluster = LOCAL_CLUSTER; |
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267 | |
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268 | for( lid = 0 ; lid < cluster->cores_nr ; lid++ ) |
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269 | { |
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270 | sched = &cluster->core_tbl[lid].scheduler; |
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271 | nthreads = sched->u_threads_nr + sched->k_threads_nr; |
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272 | |
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273 | if( nthreads < min ) |
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274 | { |
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275 | min = nthreads; |
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276 | sel = lid; |
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277 | } |
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278 | } |
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279 | return sel; |
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280 | } |
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281 | |
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282 | //////////////////////////////////////////////////////////////////////////////////// |
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283 | // Process related functions |
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284 | //////////////////////////////////////////////////////////////////////////////////// |
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285 | |
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286 | |
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287 | ////////////////////////////////////////////////////// |
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288 | xptr_t cluster_get_process_from_pid_in_cxy( cxy_t cxy, |
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289 | pid_t pid ) |
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290 | { |
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291 | xptr_t root_xp; // xptr on root of list of processes in owner cluster |
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292 | xptr_t lock_xp; // xptr on lock protecting this list |
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293 | xptr_t iter_xp; // iterator |
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294 | xptr_t current_xp; // xptr on current process descriptor |
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295 | bool_t found; |
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296 | |
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297 | cluster_t * cluster = LOCAL_CLUSTER; |
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298 | |
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299 | // get owner cluster and lpid |
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300 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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301 | lpid_t lpid = LPID_FROM_PID( pid ); |
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302 | |
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303 | // get lock & root of list of copies from owner cluster |
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304 | root_xp = XPTR( owner_cxy , &cluster->pmgr.copies_root[lpid] ); |
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305 | lock_xp = XPTR( owner_cxy , &cluster->pmgr.copies_lock[lpid] ); |
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306 | |
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307 | // take the lock protecting the list of processes |
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308 | remote_spinlock_lock( lock_xp ); |
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309 | |
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310 | // scan list of processes |
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311 | found = false; |
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312 | XLIST_FOREACH( root_xp , iter_xp ) |
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313 | { |
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314 | current_xp = XLIST_ELEMENT( iter_xp , process_t , copies_list ); |
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315 | |
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316 | if( GET_CXY( current_xp ) == cxy ) |
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317 | { |
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318 | found = true; |
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319 | break; |
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320 | } |
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321 | } |
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322 | |
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323 | // release the lock protecting the list of processes |
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324 | remote_spinlock_unlock( lock_xp ); |
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325 | |
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326 | // return extended pointer on process descriptor in owner cluster |
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327 | if( found ) return current_xp; |
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328 | else return XPTR_NULL; |
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329 | |
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330 | } // end cluster_get_process_from_pid_in_cxy() |
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331 | |
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332 | |
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333 | ////////////////////////////////////////////////////// |
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334 | xptr_t cluster_get_owner_process_from_pid( pid_t pid ) |
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335 | { |
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336 | xptr_t root_xp; // xptr on root of list of processes in owner cluster |
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337 | xptr_t lock_xp; // xptr on lock protecting this list |
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338 | xptr_t iter_xp; // iterator |
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339 | xptr_t current_xp; // xptr on current process descriptor |
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340 | process_t * current_ptr; // local pointer on current process |
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341 | pid_t current_pid; // current process identifier |
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342 | bool_t found; |
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343 | |
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344 | cluster_t * cluster = LOCAL_CLUSTER; |
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345 | |
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346 | // get owner cluster and lpid |
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347 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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348 | |
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349 | // get lock & root of list of process in owner cluster |
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350 | root_xp = XPTR( owner_cxy , &cluster->pmgr.local_root ); |
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351 | lock_xp = XPTR( owner_cxy , &cluster->pmgr.local_lock ); |
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352 | |
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353 | // take the lock protecting the list of processes |
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354 | remote_spinlock_lock( lock_xp ); |
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355 | |
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356 | // scan list of processes in owner cluster |
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357 | found = false; |
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358 | XLIST_FOREACH( root_xp , iter_xp ) |
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359 | { |
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360 | current_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
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361 | current_ptr = GET_PTR( current_xp ); |
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362 | current_pid = hal_remote_lw( XPTR( owner_cxy , ¤t_ptr->pid ) ); |
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363 | |
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364 | if( current_pid == pid ) |
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365 | { |
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366 | found = true; |
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367 | break; |
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368 | } |
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369 | } |
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370 | |
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371 | // release the lock protecting the list of processes |
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372 | remote_spinlock_unlock( lock_xp ); |
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373 | |
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374 | // return extended pointer on process descriptor in owner cluster |
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375 | if( found ) return current_xp; |
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376 | else return XPTR_NULL; |
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377 | |
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378 | } // end cluster_get_owner_process_from_pid() |
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379 | |
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380 | |
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381 | ////////////////////////////////////////////////////////// |
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382 | xptr_t cluster_get_reference_process_from_pid( pid_t pid ) |
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383 | { |
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384 | xptr_t ref_xp; // extended pointer on reference process descriptor |
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385 | |
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386 | cluster_t * cluster = LOCAL_CLUSTER; |
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387 | |
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388 | // get owner cluster and lpid |
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389 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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390 | lpid_t lpid = LPID_FROM_PID( pid ); |
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391 | |
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392 | // Check valid PID |
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393 | if( lpid >= CONFIG_MAX_PROCESS_PER_CLUSTER ) return XPTR_NULL; |
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394 | |
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395 | if( local_cxy == owner_cxy ) // local cluster is owner cluster |
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396 | { |
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397 | ref_xp = cluster->pmgr.pref_tbl[lpid]; |
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398 | } |
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399 | else // use a remote_lwd to access owner cluster |
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400 | { |
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401 | ref_xp = (xptr_t)hal_remote_lwd( XPTR( owner_cxy , &cluster->pmgr.pref_tbl[lpid] ) ); |
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402 | } |
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403 | |
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404 | return ref_xp; |
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405 | } |
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406 | |
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407 | /////////////////////////////////////////////// |
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408 | error_t cluster_pid_alloc( process_t * process, |
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409 | pid_t * pid ) |
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410 | { |
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411 | lpid_t lpid; |
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412 | bool_t found; |
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413 | |
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414 | #if DEBUG_CLUSTER_PID_ALLOC |
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415 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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416 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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417 | printk("\n[DBG] %s : thread %x enters in cluster %x / cycle %d\n", |
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418 | __FUNCTION__ , CURRENT_THREAD , local_cxy , cycle ); |
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419 | #endif |
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420 | |
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421 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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422 | |
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423 | // get the process manager lock |
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424 | spinlock_lock( &pm->pref_lock ); |
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425 | |
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426 | // search an empty slot |
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427 | found = false; |
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428 | for( lpid = 0 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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429 | { |
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430 | if( pm->pref_tbl[lpid] == XPTR_NULL ) |
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431 | { |
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432 | found = true; |
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433 | break; |
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434 | } |
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435 | } |
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436 | |
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437 | if( found ) |
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438 | { |
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439 | // register process in pref_tbl[] |
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440 | pm->pref_tbl[lpid] = XPTR( local_cxy , process ); |
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441 | pm->pref_nr++; |
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442 | |
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443 | // returns pid |
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444 | *pid = PID( local_cxy , lpid ); |
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445 | |
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446 | // release the processs_manager lock |
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447 | spinlock_unlock( &pm->pref_lock ); |
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448 | |
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449 | return 0; |
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450 | } |
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451 | else |
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452 | { |
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453 | // release the processs_manager lock |
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454 | spinlock_unlock( &pm->pref_lock ); |
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455 | |
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456 | return -1; |
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457 | } |
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458 | |
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459 | #if DEBUG_CLUSTER_PID_ALLOC |
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460 | cycle = (uint32_t)hal_get_cycles(); |
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461 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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462 | printk("\n[DBG] %s : thread %x exit in cluster %x / pid %x / cycle %d\n", |
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463 | __FUNCTION__ , CURRENT_THREAD , local_cxy , *pid , cycle ); |
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464 | #endif |
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465 | |
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466 | } // end cluster_pid_alloc() |
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467 | |
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468 | ///////////////////////////////////// |
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469 | void cluster_pid_release( pid_t pid ) |
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470 | { |
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471 | |
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472 | #if DEBUG_CLUSTER_PID_RELEASE |
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473 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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474 | if( DEBUG_CLUSTER_PID_RELEASE < cycle ) |
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475 | printk("\n[DBG] %s : thread %x enters in cluster %x / pid %x / cycle %d\n", |
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476 | __FUNCTION__ , CURRENT_THREAD , local_cxy , pid , cycle ); |
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477 | #endif |
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478 | |
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479 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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480 | lpid_t lpid = LPID_FROM_PID( pid ); |
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481 | |
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482 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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483 | |
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484 | // check lpid |
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485 | assert( (lpid < CONFIG_MAX_PROCESS_PER_CLUSTER), |
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486 | "illegal LPID = %d" , lpid ); |
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487 | |
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488 | // check owner cluster |
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489 | assert( (owner_cxy == local_cxy) , |
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490 | "local_cluster %x != owner_cluster %x" , local_cxy , owner_cxy ); |
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491 | |
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492 | // get the process manager lock |
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493 | spinlock_lock( &pm->pref_lock ); |
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494 | |
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495 | // remove process from pref_tbl[] |
---|
496 | pm->pref_tbl[lpid] = XPTR_NULL; |
---|
497 | pm->pref_nr--; |
---|
498 | |
---|
499 | // release the processs_manager lock |
---|
500 | spinlock_unlock( &pm->pref_lock ); |
---|
501 | |
---|
502 | #if DEBUG_CLUSTER_PID_RELEASE |
---|
503 | cycle = (uint32_t)hal_get_cycles(); |
---|
504 | if( DEBUG_CLUSTER_PID_RELEASE < cycle ) |
---|
505 | printk("\n[DBG] %s : thread %x exit in cluster %x / cycle %d\n", |
---|
506 | __FUNCTION__ , CURRENT_THREAD , local_cxy , cycle ); |
---|
507 | #endif |
---|
508 | |
---|
509 | } // end cluster_pid_release() |
---|
510 | |
---|
511 | /////////////////////////////////////////////////////////// |
---|
512 | process_t * cluster_get_local_process_from_pid( pid_t pid ) |
---|
513 | { |
---|
514 | xptr_t process_xp; |
---|
515 | process_t * process_ptr; |
---|
516 | xptr_t root_xp; |
---|
517 | xptr_t iter_xp; |
---|
518 | bool_t found; |
---|
519 | |
---|
520 | found = false; |
---|
521 | root_xp = XPTR( local_cxy , &LOCAL_CLUSTER->pmgr.local_root ); |
---|
522 | |
---|
523 | XLIST_FOREACH( root_xp , iter_xp ) |
---|
524 | { |
---|
525 | process_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
---|
526 | process_ptr = (process_t *)GET_PTR( process_xp ); |
---|
527 | if( process_ptr->pid == pid ) |
---|
528 | { |
---|
529 | found = true; |
---|
530 | break; |
---|
531 | } |
---|
532 | } |
---|
533 | |
---|
534 | if (found ) return process_ptr; |
---|
535 | else return NULL; |
---|
536 | |
---|
537 | } // end cluster_get_local_process_from_pid() |
---|
538 | |
---|
539 | ////////////////////////////////////////////////////// |
---|
540 | void cluster_process_local_link( process_t * process ) |
---|
541 | { |
---|
542 | reg_t save_sr; |
---|
543 | |
---|
544 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
---|
545 | |
---|
546 | // get extended pointers on local process list root & lock |
---|
547 | xptr_t root_xp = XPTR( local_cxy , &pm->local_root ); |
---|
548 | xptr_t lock_xp = XPTR( local_cxy , &pm->local_lock ); |
---|
549 | |
---|
550 | // get lock protecting the process manager local list |
---|
551 | remote_spinlock_lock_busy( lock_xp , &save_sr ); |
---|
552 | |
---|
553 | // register process in local list |
---|
554 | xlist_add_last( root_xp , XPTR( local_cxy , &process->local_list ) ); |
---|
555 | pm->local_nr++; |
---|
556 | |
---|
557 | // release lock protecting the process manager local list |
---|
558 | remote_spinlock_unlock_busy( lock_xp , save_sr ); |
---|
559 | } |
---|
560 | |
---|
561 | //////////////////////////////////////////////////////// |
---|
562 | void cluster_process_local_unlink( process_t * process ) |
---|
563 | { |
---|
564 | reg_t save_sr; |
---|
565 | |
---|
566 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
---|
567 | |
---|
568 | // get extended pointers on local process list lock |
---|
569 | xptr_t lock_xp = XPTR( local_cxy , &pm->local_lock ); |
---|
570 | |
---|
571 | // get lock protecting the process manager local list |
---|
572 | remote_spinlock_lock_busy( lock_xp , &save_sr ); |
---|
573 | |
---|
574 | // remove process from local list |
---|
575 | xlist_unlink( XPTR( local_cxy , &process->local_list ) ); |
---|
576 | pm->local_nr--; |
---|
577 | |
---|
578 | // release lock protecting the process manager local list |
---|
579 | remote_spinlock_unlock_busy( lock_xp , save_sr ); |
---|
580 | } |
---|
581 | |
---|
582 | /////////////////////////////////////////////////////// |
---|
583 | void cluster_process_copies_link( process_t * process ) |
---|
584 | { |
---|
585 | reg_t irq_state; |
---|
586 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
---|
587 | |
---|
588 | #if DEBUG_CLUSTER_PROCESS_COPIES |
---|
589 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
590 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
---|
591 | printk("\n[DBG] %s enters / cluster %x / process %x / cycle %d\n", |
---|
592 | __FUNCTION__ , local_cxy , process , cycle ); |
---|
593 | #endif |
---|
594 | |
---|
595 | // get owner cluster identifier CXY and process LPID |
---|
596 | pid_t pid = process->pid; |
---|
597 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
---|
598 | lpid_t lpid = LPID_FROM_PID( pid ); |
---|
599 | |
---|
600 | // get extended pointer on lock protecting copies_list[lpid] |
---|
601 | xptr_t copies_lock = XPTR( owner_cxy , &pm->copies_lock[lpid] ); |
---|
602 | |
---|
603 | // get extended pointer on the copies_list[lpid] root |
---|
604 | xptr_t copies_root = XPTR( owner_cxy , &pm->copies_root[lpid] ); |
---|
605 | |
---|
606 | // get extended pointer on the local copies_list entry |
---|
607 | xptr_t copies_entry = XPTR( local_cxy , &process->copies_list ); |
---|
608 | |
---|
609 | // get lock protecting copies_list[lpid] |
---|
610 | remote_spinlock_lock_busy( copies_lock , &irq_state ); |
---|
611 | |
---|
612 | // add copy to copies_list |
---|
613 | xlist_add_first( copies_root , copies_entry ); |
---|
614 | hal_remote_atomic_add( XPTR( owner_cxy , &pm->copies_nr[lpid] ) , 1 ); |
---|
615 | |
---|
616 | // release lock protecting copies_list[lpid] |
---|
617 | remote_spinlock_unlock_busy( copies_lock , irq_state ); |
---|
618 | |
---|
619 | #if DEBUG_CLUSTER_PROCESS_COPIES |
---|
620 | cycle = (uint32_t)hal_get_cycles(); |
---|
621 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
---|
622 | printk("\n[DBG] %s exit / cluster %x / process %x / cycle %d\n", |
---|
623 | __FUNCTION__ , local_cxy , process , cycle ); |
---|
624 | #endif |
---|
625 | |
---|
626 | } // end cluster_process_copies_link() |
---|
627 | |
---|
628 | ///////////////////////////////////////////////////////// |
---|
629 | void cluster_process_copies_unlink( process_t * process ) |
---|
630 | { |
---|
631 | uint32_t irq_state; |
---|
632 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
---|
633 | |
---|
634 | #if DEBUG_CLUSTER_PROCESS_COPIES |
---|
635 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
636 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
---|
637 | printk("\n[DBG] %s enters / cluster %x / process %x / cycle %d\n", |
---|
638 | __FUNCTION__ , local_cxy , process , cycle ); |
---|
639 | #endif |
---|
640 | |
---|
641 | // get owner cluster identifier CXY and process LPID |
---|
642 | pid_t pid = process->pid; |
---|
643 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
---|
644 | lpid_t lpid = LPID_FROM_PID( pid ); |
---|
645 | |
---|
646 | // get extended pointer on lock protecting copies_list[lpid] |
---|
647 | xptr_t copies_lock = XPTR( owner_cxy , &pm->copies_lock[lpid] ); |
---|
648 | |
---|
649 | // get extended pointer on the local copies_list entry |
---|
650 | xptr_t copies_entry = XPTR( local_cxy , &process->copies_list ); |
---|
651 | |
---|
652 | // get lock protecting copies_list[lpid] |
---|
653 | remote_spinlock_lock_busy( copies_lock , &irq_state ); |
---|
654 | |
---|
655 | // remove copy from copies_list |
---|
656 | xlist_unlink( copies_entry ); |
---|
657 | hal_remote_atomic_add( XPTR( owner_cxy , &pm->copies_nr[lpid] ) , -1 ); |
---|
658 | |
---|
659 | // release lock protecting copies_list[lpid] |
---|
660 | remote_spinlock_unlock_busy( copies_lock , irq_state ); |
---|
661 | |
---|
662 | #if DEBUG_CLUSTER_PROCESS_COPIES |
---|
663 | cycle = (uint32_t)hal_get_cycles(); |
---|
664 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
---|
665 | printk("\n[DBG] %s exit / cluster %x / process %x / cycle %d\n", |
---|
666 | __FUNCTION__ , local_cxy , process , cycle ); |
---|
667 | #endif |
---|
668 | |
---|
669 | } // end cluster_process_copies_unlink() |
---|
670 | |
---|
671 | /////////////////////////////////////////// |
---|
672 | void cluster_processes_display( cxy_t cxy ) |
---|
673 | { |
---|
674 | xptr_t root_xp; |
---|
675 | xptr_t lock_xp; |
---|
676 | xptr_t iter_xp; |
---|
677 | xptr_t process_xp; |
---|
678 | cxy_t txt0_cxy; |
---|
679 | chdev_t * txt0_ptr; |
---|
680 | xptr_t txt0_xp; |
---|
681 | xptr_t txt0_lock_xp; |
---|
682 | reg_t txt0_save_sr; // save SR to take TXT0 lock in busy mode |
---|
683 | |
---|
684 | assert( (cluster_is_undefined( cxy ) == false), |
---|
685 | "illegal cluster index" ); |
---|
686 | |
---|
687 | // get extended pointer on root and lock for local process list in cluster |
---|
688 | root_xp = XPTR( cxy , &LOCAL_CLUSTER->pmgr.local_root ); |
---|
689 | lock_xp = XPTR( cxy , &LOCAL_CLUSTER->pmgr.local_lock ); |
---|
690 | |
---|
691 | // get pointers on TXT0 chdev |
---|
692 | txt0_xp = chdev_dir.txt_tx[0]; |
---|
693 | txt0_cxy = GET_CXY( txt0_xp ); |
---|
694 | txt0_ptr = GET_PTR( txt0_xp ); |
---|
695 | |
---|
696 | // get extended pointer on TXT0 lock |
---|
697 | txt0_lock_xp = XPTR( txt0_cxy , &txt0_ptr->wait_lock ); |
---|
698 | |
---|
699 | // get lock on local process list |
---|
700 | remote_spinlock_lock( lock_xp ); |
---|
701 | |
---|
702 | // get TXT0 lock in busy waiting mode |
---|
703 | remote_spinlock_lock_busy( txt0_lock_xp , &txt0_save_sr ); |
---|
704 | |
---|
705 | // display header |
---|
706 | nolock_printk("\n***** processes in cluster %x / cycle %d\n", |
---|
707 | cxy , (uint32_t)hal_get_cycles() ); |
---|
708 | |
---|
709 | // loop on all processes in cluster cxy |
---|
710 | XLIST_FOREACH( root_xp , iter_xp ) |
---|
711 | { |
---|
712 | process_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
---|
713 | process_display( process_xp ); |
---|
714 | } |
---|
715 | |
---|
716 | // release TXT0 lock in busy waiting mode |
---|
717 | remote_spinlock_unlock_busy( txt0_lock_xp , txt0_save_sr ); |
---|
718 | |
---|
719 | // release lock on local process list |
---|
720 | remote_spinlock_unlock( lock_xp ); |
---|
721 | |
---|
722 | } // end cluster_processes_display() |
---|
723 | |
---|
724 | |
---|