1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup rtems_bsd_rtems |
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5 | * |
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6 | * @brief TODO. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009-2015 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Dornierstr. 4 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * Redistribution and use in source and binary forms, with or without |
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19 | * modification, are permitted provided that the following conditions |
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20 | * are met: |
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21 | * 1. Redistributions of source code must retain the above copyright |
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22 | * notice, this list of conditions and the following disclaimer. |
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23 | * 2. Redistributions in binary form must reproduce the above copyright |
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24 | * notice, this list of conditions and the following disclaimer in the |
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25 | * documentation and/or other materials provided with the distribution. |
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26 | * |
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27 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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37 | * SUCH DAMAGE. |
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38 | */ |
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39 | |
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40 | #include <machine/rtems-bsd-kernel-space.h> |
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41 | #include <machine/rtems-bsd-thread.h> |
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42 | |
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43 | #include <rtems/bsd/sys/param.h> |
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44 | #include <sys/types.h> |
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45 | #include <sys/systm.h> |
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46 | #include <sys/kernel.h> |
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47 | #include <sys/sysctl.h> |
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48 | #include <rtems/bsd/sys/lock.h> |
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49 | #include <sys/mutex.h> |
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50 | #include <sys/proc.h> |
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51 | #include <sys/stat.h> |
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52 | |
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53 | #include <rtems/bsd/bsd.h> |
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54 | |
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55 | SYSINIT_REFERENCE(configure1); |
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56 | SYSINIT_REFERENCE(module); |
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57 | SYSINIT_REFERENCE(kobj); |
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58 | SYSINIT_REFERENCE(linker_kernel); |
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59 | SYSINIT_MODULE_REFERENCE(rootbus); |
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60 | SYSINIT_DRIVER_REFERENCE(nexus, root); |
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61 | |
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62 | RTEMS_BSD_DEFINE_SET(modmetadata_set, struct mod_metadata *); |
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63 | RTEMS_BSD_DEFINE_SET(sysctl_set, struct sysctl_oid *); |
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64 | |
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65 | RTEMS_BSD_DEFINE_RWSET(sysinit_set, struct sysinit *); |
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66 | |
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67 | /* In FreeBSD this is a local function */ |
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68 | void mi_startup(void); |
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69 | |
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70 | int hz; |
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71 | int tick; |
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72 | sbintime_t tick_sbt; |
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73 | struct bintime bt_timethreshold; |
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74 | struct bintime bt_tickthreshold; |
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75 | sbintime_t sbt_timethreshold; |
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76 | sbintime_t sbt_tickthreshold; |
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77 | struct bintime tc_tick_bt; |
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78 | sbintime_t tc_tick_sbt; |
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79 | int tc_precexp; |
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80 | int maxusers; /* base tunable */ |
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81 | |
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82 | static SYSCTL_NODE(_kern, OID_AUTO, smp, CTLFLAG_RD|CTLFLAG_CAPRD, NULL, |
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83 | "Kernel SMP"); |
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84 | |
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85 | static int maxid_maxcpus; |
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86 | |
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87 | SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD|CTLFLAG_CAPRD, |
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88 | &maxid_maxcpus, 0, "Max CPU ID."); |
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89 | |
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90 | SYSCTL_INT(_kern_smp, OID_AUTO, maxcpus, CTLFLAG_RD|CTLFLAG_CAPRD, |
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91 | &maxid_maxcpus, 0, "Max number of CPUs that the system was compiled for."); |
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92 | |
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93 | #undef _bsd_ticks |
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94 | |
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95 | RTEMS_STATIC_ASSERT(sizeof(int) == sizeof(int32_t), ticks); |
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96 | |
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97 | volatile uint32_t _Watchdog_Ticks_since_boot; |
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98 | |
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99 | extern volatile int32_t _bsd_ticks |
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100 | __attribute__ ((__alias__("_Watchdog_Ticks_since_boot"))); |
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101 | |
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102 | __attribute__((__weak__)) void _arc4random_getentropy_fail(void) |
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103 | { |
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104 | |
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105 | } |
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106 | |
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107 | __attribute__((__weak__)) int getentropy(void *buf, size_t n) |
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108 | { |
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109 | |
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110 | memset(buf, 0, n); |
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111 | return (0); |
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112 | } |
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113 | |
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114 | rtems_status_code |
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115 | rtems_bsd_initialize(void) |
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116 | { |
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117 | static const char name[] = "TIME"; |
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118 | rtems_status_code sc; |
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119 | |
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120 | hz = (int) rtems_clock_get_ticks_per_second(); |
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121 | tick = 1000000 / hz; |
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122 | tick_sbt = SBT_1S / hz; |
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123 | FREQ2BT(hz, &tc_tick_bt); |
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124 | tc_tick_sbt = bttosbt(tc_tick_bt); |
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125 | tc_precexp = 31; |
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126 | bt_timethreshold.sec = INT_MAX; |
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127 | bt_timethreshold.frac = ~(uint64_t)0; |
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128 | bt_tickthreshold = bt_timethreshold; |
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129 | sbt_timethreshold = bttosbt(bt_timethreshold); |
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130 | sbt_tickthreshold = bttosbt(bt_tickthreshold); |
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131 | maxusers = 1; |
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132 | maxid_maxcpus = (int) rtems_get_processor_count(); |
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133 | |
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134 | mkdir("/etc", S_IRWXU | S_IRWXG | S_IRWXO); |
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135 | |
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136 | sc = rtems_timer_initiate_server( |
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137 | rtems_bsd_get_task_priority(name), |
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138 | rtems_bsd_get_task_stack_size(name), |
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139 | RTEMS_DEFAULT_ATTRIBUTES |
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140 | ); |
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141 | if (sc != RTEMS_SUCCESSFUL) { |
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142 | return RTEMS_UNSATISFIED; |
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143 | } |
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144 | |
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145 | mutex_init(); |
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146 | mi_startup(); |
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147 | |
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148 | return RTEMS_SUCCESSFUL; |
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149 | } |
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