[258] | 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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[440] | 12 | #include <mmc_driver.h> |
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[519] | 13 | #include <mwr_driver.h> |
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[440] | 14 | #include <cma_driver.h> |
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[258] | 15 | #include <ctx_handler.h> |
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| 16 | #include <fat32.h> |
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[707] | 17 | #include <elf-types.h> |
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[258] | 18 | #include <utils.h> |
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[478] | 19 | #include <kernel_malloc.h> |
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[459] | 20 | #include <tty0.h> |
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[396] | 21 | #include <vmem.h> |
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[322] | 22 | #include <hard_config.h> |
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[258] | 23 | #include <giet_config.h> |
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| 24 | #include <mapping_info.h> |
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[547] | 25 | #include <irq_handler.h> |
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[519] | 26 | #include <io.h> |
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[258] | 27 | |
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[709] | 28 | #if !defined(X_SIZE) |
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| 29 | # error: You must define X_SIZE in the hard_config.h file |
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| 30 | #endif |
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| 31 | |
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| 32 | #if !defined(Y_SIZE) |
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| 33 | # error: You must define Y_SIZE in the hard_config.h file |
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| 34 | #endif |
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| 35 | |
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| 36 | #if !defined(NB_PROCS_MAX) |
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| 37 | # error: You must define NB_PROCS_MAX in the hard_config.h file |
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| 38 | #endif |
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| 39 | |
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[322] | 40 | #if !defined(SEG_BOOT_MAPPING_BASE) |
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| 41 | # error: You must define SEG_BOOT_MAPPING_BASE in the hard_config.h file |
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| 42 | #endif |
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| 43 | |
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[449] | 44 | #if !defined(NB_TTY_CHANNELS) |
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| 45 | # error: You must define NB_TTY_CHANNELS in the hard_config.h file |
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| 46 | #endif |
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| 47 | |
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[459] | 48 | #if (NB_TTY_CHANNELS < 1) |
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| 49 | # error: NB_TTY_CHANNELS cannot be smaller than 1! |
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| 50 | #endif |
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| 51 | |
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[449] | 52 | #if !defined(NB_TIM_CHANNELS) |
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| 53 | # error: You must define NB_TIM_CHANNELS in the hard_config.h file |
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| 54 | #endif |
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| 55 | |
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| 56 | #if !defined(NB_NIC_CHANNELS) |
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| 57 | # error: You must define NB_NIC_CHANNELS in the hard_config.h file |
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| 58 | #endif |
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| 59 | |
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| 60 | #if !defined(NB_CMA_CHANNELS) |
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| 61 | # error: You must define NB_CMA_CHANNELS in the hard_config.h file |
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| 62 | #endif |
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| 63 | |
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[478] | 64 | #if !defined(GIET_NO_HARD_CC) |
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| 65 | # error: You must define GIET_NO_HARD_CC in the giet_config.h file |
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[449] | 66 | #endif |
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| 67 | |
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[478] | 68 | #if !defined ( GIET_NIC_MAC4 ) |
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| 69 | # error: You must define GIET_NIC_MAC4 in the giet_config.h file |
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[449] | 70 | #endif |
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| 71 | |
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[478] | 72 | #if !defined ( GIET_NIC_MAC2 ) |
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| 73 | # error: You must define GIET_NIC_MAC2 in the giet_config.h file |
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[449] | 74 | #endif |
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| 75 | |
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[258] | 76 | //////////////////////////////////////////////////////////////////////////// |
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[528] | 77 | // Extern variables |
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[519] | 78 | //////////////////////////////////////////////////////////////////////////// |
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| 79 | |
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[528] | 80 | // allocated in tty0.c file. |
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| 81 | extern sqt_lock_t _tty0_sqt_lock; |
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[519] | 82 | |
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[528] | 83 | // allocated in mwr_driver.c file. |
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| 84 | extern simple_lock_t _coproc_lock[X_SIZE*Y_SIZE]; |
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[556] | 85 | extern unsigned int _coproc_type[X_SIZE*Y_SIZE]; |
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| 86 | extern unsigned int _coproc_info[X_SIZE*Y_SIZE]; |
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| 87 | extern unsigned int _coproc_mode[X_SIZE*Y_SIZE]; |
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| 88 | extern unsigned int _coproc_error[X_SIZE*Y_SIZE]; |
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[709] | 89 | extern unsigned int _coproc_trdid[X_SIZE*Y_SIZE]; |
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[519] | 90 | |
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[528] | 91 | // allocated in tty_driver.c file. |
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[709] | 92 | extern tty_fifo_t _tty_rx_fifo[NB_TTY_CHANNELS]; |
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[528] | 93 | |
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[629] | 94 | // allocated in kernel_init.c file |
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| 95 | extern static_scheduler_t* _schedulers[X_SIZE][Y_SIZE][NB_PROCS_MAX]; |
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| 96 | |
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[760] | 97 | // allocated in kernel_init.c file |
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| 98 | extern unsigned long long _ptabs_paddr[GIET_NB_VSPACE_MAX][X_SIZE][Y_SIZE]; |
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[714] | 99 | |
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[709] | 100 | //////////////////////////////////////////////////////////////////////////////// |
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[714] | 101 | // Allocator protecting exclusive access to FBF by a single application. |
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| 102 | // - The number of users in a given application should be set by a single |
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| 103 | // thread using an _atomic_test_and_set(). |
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| 104 | // - The allocator is atomically decremented by each user thread when |
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| 105 | // the thread exit. |
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| 106 | //////////////////////////////////////////////////////////////////////////////// |
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| 107 | |
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| 108 | __attribute__((section(".kdata"))) |
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| 109 | unsigned int _fbf_alloc = 0; |
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| 110 | |
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| 111 | //////////////////////////////////////////////////////////////////////////////// |
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[709] | 112 | // Channel allocators for multi-channels peripherals |
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| 113 | // - The array _***_channel_allocator[channel] defines the number of user |
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| 114 | // threads for a dynamically allocated channel of peripheral ***. |
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| 115 | // - The array _***_channel_wti[channel] defines the WTI index and the |
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| 116 | // processor coordinates for the processor receiving the channel WTI. |
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| 117 | //////////////////////////////////////////////////////////////////////////////// |
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[440] | 118 | |
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[709] | 119 | #if NB_TTY_CHANNELS |
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[494] | 120 | __attribute__((section(".kdata"))) |
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[709] | 121 | unsigned int _tty_channel_alloc[NB_TTY_CHANNELS] = {0}; |
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[494] | 122 | |
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| 123 | __attribute__((section(".kdata"))) |
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[709] | 124 | unsigned int _tty_channel_wti[NB_TTY_CHANNELS]; |
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| 125 | #endif |
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[494] | 126 | |
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[709] | 127 | #if NB_TIM_CHANNELS |
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[494] | 128 | __attribute__((section(".kdata"))) |
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[709] | 129 | unsigned int _tim_channel_alloc[NB_TIM_CHANNELS] = {0}; |
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[494] | 130 | |
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| 131 | __attribute__((section(".kdata"))) |
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[709] | 132 | unsigned int _tim_channel_wti[NB_TIM_CHANNELS]; |
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| 133 | #endif |
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[494] | 134 | |
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[709] | 135 | #if NB_CMA_CHANNELS |
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[494] | 136 | __attribute__((section(".kdata"))) |
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[709] | 137 | unsigned int _cma_channel_alloc[NB_CMA_CHANNELS] = {0}; |
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[440] | 138 | |
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[709] | 139 | __attribute__((section(".kdata"))) |
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| 140 | unsigned int _cma_channel_wti[NB_CMA_CHANNELS]; |
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| 141 | #endif |
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| 142 | |
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| 143 | #if NB_NIC_CHANNELS |
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| 144 | __attribute__((section(".kdata"))) |
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| 145 | unsigned int _nic_rx_channel_alloc[NB_NIC_CHANNELS] = {0}; |
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| 146 | |
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| 147 | __attribute__((section(".kdata"))) |
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| 148 | unsigned int _nic_rx_channel_wti[NB_NIC_CHANNELS]; |
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| 149 | |
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| 150 | __attribute__((section(".kdata"))) |
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| 151 | unsigned int _nic_tx_channel_alloc[NB_NIC_CHANNELS] = {0}; |
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| 152 | |
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| 153 | __attribute__((section(".kdata"))) |
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| 154 | unsigned int _nic_tx_channel_wti[NB_NIC_CHANNELS]; |
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| 155 | #endif |
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| 156 | |
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[440] | 157 | //////////////////////////////////////////////////////////////////////////// |
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[614] | 158 | // NIC_RX and NIC_TX kernel chbuf arrays |
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[449] | 159 | //////////////////////////////////////////////////////////////////////////// |
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| 160 | |
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[494] | 161 | __attribute__((section(".kdata"))) |
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[725] | 162 | nic_chbuf_t _nic_ker_rx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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[459] | 163 | |
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[494] | 164 | __attribute__((section(".kdata"))) |
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[725] | 165 | nic_chbuf_t _nic_ker_tx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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[459] | 166 | |
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[478] | 167 | //////////////////////////////////////////////////////////////////////////// |
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[725] | 168 | // FBF related chbuf |
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| 169 | // The physical address of this chbuf is required for L2 cache sync. |
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[478] | 170 | //////////////////////////////////////////////////////////////////////////// |
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[459] | 171 | |
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[494] | 172 | __attribute__((section(".kdata"))) |
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[725] | 173 | fbf_chbuf_t _fbf_ker_chbuf __attribute__((aligned(64))); |
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[459] | 174 | |
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[494] | 175 | __attribute__((section(".kdata"))) |
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[725] | 176 | unsigned long long _fbf_chbuf_paddr; |
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[478] | 177 | |
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[449] | 178 | //////////////////////////////////////////////////////////////////////////// |
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[258] | 179 | // Initialize the syscall vector with syscall handlers |
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| 180 | // Note: This array must be synchronised with the define in file stdio.h |
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| 181 | //////////////////////////////////////////////////////////////////////////// |
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[494] | 182 | |
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| 183 | __attribute__((section(".kdata"))) |
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[258] | 184 | const void * _syscall_vector[64] = |
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| 185 | { |
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[556] | 186 | &_sys_proc_xyp, /* 0x00 */ |
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| 187 | &_get_proctime, /* 0x01 */ |
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[709] | 188 | &_sys_procs_number, /* 0x02 */ |
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| 189 | &_sys_xy_from_ptr, /* 0x03 */ |
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| 190 | &_sys_ukn, /* 0x04 */ |
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[714] | 191 | &_sys_vseg_get_vbase, /* 0x05 */ |
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| 192 | &_sys_vseg_get_length, /* 0x06 */ |
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[556] | 193 | &_sys_heap_info, /* 0x07 */ |
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[714] | 194 | &_sys_fbf_size, /* 0x08 */ |
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| 195 | &_sys_fbf_alloc, /* 0x09 */ |
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[754] | 196 | |
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| 197 | #if NB_CMA_CHANNELS |
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[556] | 198 | &_sys_fbf_cma_alloc, /* 0x0A */ |
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[614] | 199 | &_sys_fbf_cma_init_buf, /* 0x0B */ |
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| 200 | &_sys_fbf_cma_start, /* 0x0C */ |
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| 201 | &_sys_fbf_cma_display, /* 0x0D */ |
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| 202 | &_sys_fbf_cma_stop, /* 0x0E */ |
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[725] | 203 | &_sys_fbf_cma_check, /* 0x0F */ |
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[754] | 204 | #else |
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| 205 | &_sys_ukn, /* 0x0A */ |
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| 206 | &_sys_ukn, /* 0x0B */ |
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| 207 | &_sys_ukn, /* 0x0C */ |
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| 208 | &_sys_ukn, /* 0x0D */ |
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| 209 | &_sys_ukn, /* 0x0E */ |
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| 210 | &_sys_ukn, /* 0x0F */ |
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| 211 | #endif |
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[258] | 212 | |
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[709] | 213 | &_sys_applications_status, /* 0x10 */ |
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[614] | 214 | &_sys_fbf_sync_write, /* 0x11 */ |
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| 215 | &_sys_fbf_sync_read, /* 0x12 */ |
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[709] | 216 | &_sys_ukn, /* 0x13 */ |
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[556] | 217 | &_sys_tim_alloc, /* 0x14 */ |
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| 218 | &_sys_tim_start, /* 0x15 */ |
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| 219 | &_sys_tim_stop, /* 0x16 */ |
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[629] | 220 | &_sys_kill_application, /* 0x17 */ |
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| 221 | &_sys_exec_application, /* 0x18 */ |
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[709] | 222 | &_sys_ukn, /* 0x19 */ |
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| 223 | &_sys_pthread_control, /* 0x1A */ |
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| 224 | &_sys_pthread_yield, /* 0x1B */ |
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| 225 | &_sys_pthread_kill, /* 0x1C */ |
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| 226 | &_sys_pthread_create, /* 0x1D */ |
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| 227 | &_sys_pthread_join, /* 0x1E */ |
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| 228 | &_sys_pthread_exit, /* 0x1F */ |
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[258] | 229 | |
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[592] | 230 | &_fat_open, /* 0x20 */ |
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[760] | 231 | &_sys_fat_read, /* 0x21 */ |
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| 232 | &_sys_fat_write, /* 0x22 */ |
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[592] | 233 | &_fat_lseek, /* 0x23 */ |
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| 234 | &_fat_file_info, /* 0x24 */ |
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[556] | 235 | &_fat_close, /* 0x25 */ |
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[592] | 236 | &_fat_remove, /* 0x26 */ |
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| 237 | &_fat_rename, /* 0x27 */ |
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| 238 | &_fat_mkdir, /* 0x28 */ |
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[661] | 239 | &_fat_opendir, /* 0x29 */ |
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| 240 | &_fat_closedir, /* 0x2A */ |
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| 241 | &_fat_readdir, /* 0x2B */ |
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[760] | 242 | &_sys_fat_pread, /* 0x2C */ |
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| 243 | &_sys_fat_mmap, /* 0x2D */ |
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| 244 | &_sys_fat_munmap, /* 0x2E */ |
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[774] | 245 | &_sys_fat_dump, /* 0x2F */ |
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[258] | 246 | |
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[754] | 247 | #if NB_NIC_CHANNELS |
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[556] | 248 | &_sys_nic_alloc, /* 0x30 */ |
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| 249 | &_sys_nic_start, /* 0x31 */ |
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| 250 | &_sys_nic_move, /* 0x32 */ |
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| 251 | &_sys_nic_stop, /* 0x33 */ |
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| 252 | &_sys_nic_stats, /* 0x34 */ |
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| 253 | &_sys_nic_clear, /* 0x35 */ |
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[754] | 254 | #else |
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| 255 | &_sys_ukn, /* 0x30 */ |
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| 256 | &_sys_ukn, /* 0x31 */ |
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| 257 | &_sys_ukn, /* 0x32 */ |
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| 258 | &_sys_ukn, /* 0x33 */ |
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| 259 | &_sys_ukn, /* 0x34 */ |
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| 260 | &_sys_ukn, /* 0x35 */ |
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| 261 | #endif |
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| 262 | |
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[709] | 263 | &_sys_tty_write, /* 0x36 */ |
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| 264 | &_sys_tty_read, /* 0x37 */ |
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| 265 | &_sys_tty_alloc, /* 0x38 */ |
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[556] | 266 | &_sys_ukn, /* 0x39 */ |
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| 267 | &_sys_ukn, /* 0x3A */ |
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| 268 | &_sys_coproc_completed, /* 0x3B */ |
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| 269 | &_sys_coproc_alloc, /* 0x3C */ |
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| 270 | &_sys_coproc_channel_init, /* 0x3D */ |
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| 271 | &_sys_coproc_run, /* 0x3E */ |
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| 272 | &_sys_coproc_release, /* 0x3F */ |
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[258] | 273 | }; |
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| 274 | |
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[709] | 275 | |
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[760] | 276 | |
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| 277 | /////////////////////////////////////////////////////////////////////////////////// |
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| 278 | // File system related syscall handlers |
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| 279 | /////////////////////////////////////////////////////////////////////////////////// |
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| 280 | |
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| 281 | /////////////////////////////////////////////////////////////////////////////////// |
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| 282 | // This function is called by the _sys_fat_mmap() function. |
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| 283 | // It implements a simplistic pages allocator from the MMAP vseg of the vspace |
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| 284 | // identified by the <vspace_id> argument. The number of pages is defined by |
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| 285 | // the <count> argument. |
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| 286 | // Allocated pages are never released, and the allocator is the "psegid" field |
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| 287 | // in the vseg mapping, that is initialised to 0 by the boot code. |
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| 288 | // In order to support concurrent system calls, the allocator must be |
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| 289 | // atomically incremented. |
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| 290 | /////////////////////////////////////////////////////////////////////////////////// |
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| 291 | // Returns the buffer vbase address in case of success. |
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| 292 | // Returns 0 in case of error (no MMAP vseg or not enough space). |
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| 293 | /////////////////////////////////////////////////////////////////////////////////// |
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| 294 | static unsigned int _mmap_pages_alloc( unsigned int vspace_id, |
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| 295 | unsigned int count ) |
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| 296 | { |
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| 297 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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| 298 | mapping_vspace_t* vspace = _get_vspace_base( header ); |
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| 299 | mapping_vseg_t* vseg = _get_vseg_base( header ); |
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| 300 | |
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| 301 | // loop on the vsegs to find the MMAP vseg vbase, length, and offset |
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| 302 | unsigned int vseg_id; |
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| 303 | unsigned int vbase; |
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| 304 | unsigned int offset; |
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| 305 | unsigned int length; |
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| 306 | unsigned int found = 0; |
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| 307 | for (vseg_id = vspace[vspace_id].vseg_offset; |
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| 308 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
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| 309 | vseg_id++) |
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| 310 | { |
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| 311 | if ( vseg[vseg_id].type == VSEG_TYPE_MMAP ) |
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| 312 | { |
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| 313 | offset = _atomic_increment( &vseg[vseg_id].psegid , count ); |
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| 314 | vbase = vseg[vseg_id].vbase; |
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| 315 | length = vseg[vseg_id].length; |
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| 316 | found = 1; |
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| 317 | break; |
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| 318 | } |
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| 319 | } |
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| 320 | |
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| 321 | if ( (found == 0) || (((offset + count)<<12) > length) ) |
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| 322 | { |
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| 323 | return 0; |
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| 324 | } |
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| 325 | else |
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| 326 | { |
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| 327 | return vbase + (offset<<12); |
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| 328 | } |
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| 329 | } // end _mmap_pages_alloc() |
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| 330 | |
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| 331 | |
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| 332 | /////////////////////////////////////////////////////////////////////////////////// |
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| 333 | // This function implements the giet_fat_read() system call. |
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| 334 | /////////////////////////////////////////////////////////////////////////////////// |
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| 335 | int _sys_fat_read( unsigned int fd_id, |
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| 336 | unsigned int vaddr, |
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| 337 | unsigned int count ) |
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| 338 | { |
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| 339 | return _fat_read( fd_id, |
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| 340 | vaddr, |
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| 341 | count, |
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| 342 | 0, // no paddr extension |
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| 343 | 0, // no forced offset |
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| 344 | 0 ); // no special mode |
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| 345 | } |
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| 346 | |
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| 347 | //////////////////////////////////////////////////////////////// |
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| 348 | // This function implements the giet_fat_pread() system call. |
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| 349 | //////////////////////////////////////////////////////////////// |
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| 350 | int _sys_fat_pread( unsigned int fd_id, |
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| 351 | unsigned int vaddr, |
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| 352 | unsigned int count, |
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| 353 | unsigned int offset ) |
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| 354 | { |
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| 355 | return _fat_read( fd_id, |
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| 356 | vaddr, |
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| 357 | count, |
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| 358 | 0, // no paddr extension |
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| 359 | offset, |
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| 360 | FAT_FORCED_OFFSET ); |
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| 361 | } |
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| 362 | |
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| 363 | //////////////////////////////////////////////////////////////// |
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| 364 | // This function implements the giet_fat_write() system call. |
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| 365 | //////////////////////////////////////////////////////////////// |
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| 366 | int _sys_fat_write( unsigned int fd_id, |
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| 367 | unsigned int vaddr, |
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| 368 | unsigned int count ) |
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| 369 | { |
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| 370 | return _fat_write( fd_id, |
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| 371 | vaddr, |
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| 372 | count, |
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| 373 | 0, // no paddr extension |
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| 374 | 0 ); // no special mode |
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| 375 | } |
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| 376 | |
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| 377 | /////////////////////////////////////////////////////////////////////////////////// |
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| 378 | // This function implements the "giet_fat_mmap()" system call. |
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| 379 | // It allocates <count> contiguous pages from the MMAP vseg of the calling vspace. |
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| 380 | // It maps all these pages directly to the file_cache defined by <fd_id>. |
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| 381 | // The <offset> in the file is a number of pages. |
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| 382 | // The <prot> argument defines the access modes MAP_PROT_WRITE and MAP_PROT_EXEC. |
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| 383 | // In writable mode, the file size is extended to the (offset + count) pages. |
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| 384 | // In non writable mode, the file size must be >= (offset + count) pages. |
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| 385 | // It has the following limitations: |
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| 386 | // - it does not support MAP_PRIVATE (no copy on write). |
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| 387 | // - it does not support MAP_FIXED (no forced user buffer address). |
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| 388 | // - it does not support MAP_ANONYMOUS (only file mapping). |
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| 389 | // - the <offset> and <count> arguments must multiple of 4 Kbytes. |
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| 390 | /////////////////////////////////////////////////////////////////////////////////// |
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| 391 | // Returns memory buffer vbase in case of success. |
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| 392 | // Returns 0 on error. |
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| 393 | /////////////////////////////////////////////////////////////////////////////////// |
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| 394 | int _sys_fat_mmap( unsigned int fd_id, |
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| 395 | unsigned int count, |
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| 396 | unsigned int offset, |
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| 397 | unsigned int prot ) |
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| 398 | { |
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| 399 | // takes the FAT lock and register it in thread context |
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| 400 | static_scheduler_t* psched = _get_sched(); |
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| 401 | unsigned int ltid = _get_thread_ltid(); |
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| 402 | _spin_lock_acquire( &_fat.fat_lock ); |
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| 403 | _atomic_or( &psched->context[ltid].slot[CTX_LOCKS_ID] , LOCKS_MASK_FAT ); |
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| 404 | |
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| 405 | // check fd_id overflow |
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| 406 | if ( fd_id >= GIET_OPEN_FILES_MAX ) |
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| 407 | { |
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| 408 | _spin_lock_release( &_fat.fat_lock ); |
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| 409 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
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| 410 | |
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| 411 | _printf("\n[GIET ERROR] _sys_fat_mmap(): illegal file descriptor\n"); |
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| 412 | return 0; |
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| 413 | } |
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| 414 | |
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| 415 | // check file open |
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| 416 | if ( _fat.fd[fd_id].allocated == 0 ) |
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| 417 | { |
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| 418 | _spin_lock_release( &_fat.fat_lock ); |
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| 419 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
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| 420 | |
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| 421 | _printf("\n[GIET ERROR] _sys_fat_mmap(): file not open\n" ); |
---|
| 422 | return 0; |
---|
| 423 | } |
---|
| 424 | |
---|
| 425 | // get access modes |
---|
| 426 | unsigned int writable = prot & MAP_PROT_WRITE; |
---|
| 427 | unsigned int executable = prot & MAP_PROT_EXEC; |
---|
| 428 | |
---|
| 429 | // get inode pointer |
---|
| 430 | fat_inode_t* inode = _fat.fd[fd_id].inode; |
---|
| 431 | |
---|
| 432 | // check file writable |
---|
| 433 | if ( _fat.fd[fd_id].read_only && writable ) |
---|
| 434 | { |
---|
| 435 | _spin_lock_release( &_fat.fat_lock ); |
---|
| 436 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
---|
| 437 | |
---|
| 438 | _printf("\n[GIET ERROR] _sys_fat_mmap(): file <%s> is read-only\n", |
---|
| 439 | inode->name ); |
---|
| 440 | return 0; |
---|
| 441 | } |
---|
| 442 | |
---|
| 443 | // get vspace index and calling proc coordinates |
---|
| 444 | unsigned int vsid = _get_context_slot( CTX_VSID_ID ); |
---|
| 445 | |
---|
| 446 | // compute first and last cluster indexes |
---|
| 447 | unsigned int first_cluster = offset; |
---|
| 448 | unsigned int last_cluster = offset + count - 1; |
---|
| 449 | |
---|
| 450 | #if GIET_DEBUG_MMAP |
---|
| 451 | unsigned int procid = _get_procid(); |
---|
| 452 | unsigned int x_id = procid >> (Y_WIDTH + P_WIDTH); |
---|
| 453 | unsigned int y_id = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 454 | unsigned int p_id = procid & ((1<<P_WIDTH)-1); |
---|
| 455 | if ( _get_proctime() > GIET_DEBUG_MMAP ) |
---|
| 456 | _printf("\n[DEBUG MMAP] _sys_fat_mmap() : P[%d,%d,%d] enters at cycle %d\n" |
---|
| 457 | " for file %s / size = %x / cluster = %x / cache = %x / desc[0] = %x\n" |
---|
| 458 | " first_cluster = %d / last_cluster = %d\n", |
---|
| 459 | x_id , y_id , p_id , _get_proctime() , |
---|
| 460 | inode->name , inode->size , inode->cluster , |
---|
| 461 | (unsigned int)inode->cache , (unsigned int)inode->cache->children[0] , |
---|
| 462 | first_cluster , last_cluster ); |
---|
| 463 | #endif |
---|
| 464 | |
---|
| 465 | // get buffer vbase from MMAP vseg in calling vspace |
---|
| 466 | unsigned int buffer_vbase = _mmap_pages_alloc( vsid, count ); |
---|
| 467 | if ( buffer_vbase == 0 ) |
---|
| 468 | { |
---|
| 469 | _spin_lock_release( &_fat.fat_lock ); |
---|
| 470 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
---|
| 471 | |
---|
| 472 | _printf("\n[GIET ERROR] _sys_fat_mmap(): no space in MMAP vseg to map file %s\n", |
---|
| 473 | _fat.fd[fd_id].inode->name ); |
---|
| 474 | return 0; |
---|
| 475 | } |
---|
| 476 | |
---|
| 477 | // set flags for all pages in buffer |
---|
| 478 | unsigned int flags = 0; |
---|
| 479 | flags |= PTE_C; // cachable |
---|
| 480 | flags |= PTE_U; // user access |
---|
| 481 | flags |= PTE_L; // local access (unused) |
---|
| 482 | flags |= PTE_R; // remote access (unused) |
---|
| 483 | if ( executable ) flags |= PTE_X; |
---|
| 484 | if ( writable ) flags |= PTE_W; |
---|
| 485 | |
---|
| 486 | // loop on pages to be mapped |
---|
| 487 | unsigned int cid; |
---|
| 488 | unsigned int user_vaddr = buffer_vbase; |
---|
| 489 | for ( cid = first_cluster ; cid <= last_cluster ; cid++ ) |
---|
| 490 | { |
---|
| 491 | // get file_cache buffer vaddr |
---|
| 492 | unsigned char* cache_vaddr; |
---|
| 493 | fat_cache_desc_t* pdesc; |
---|
| 494 | if ( _get_file_cache_buffer( inode, |
---|
| 495 | cid, |
---|
| 496 | writable, |
---|
| 497 | &pdesc ) ) |
---|
| 498 | { |
---|
| 499 | _spin_lock_release( &_fat.fat_lock ); |
---|
| 500 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
---|
| 501 | |
---|
| 502 | _printf("\n[FAT ERROR] _sys_fat_mmap(): cannot access file <%s>\n", |
---|
| 503 | _fat.fd[fd_id].inode->name ); |
---|
| 504 | return 0; |
---|
| 505 | } |
---|
| 506 | |
---|
| 507 | cache_vaddr = pdesc->buffer; |
---|
| 508 | |
---|
| 509 | // compute buffer paddr |
---|
| 510 | unsigned long long cache_paddr; |
---|
| 511 | unsigned int unused; |
---|
| 512 | cache_paddr = _v2p_translate( (unsigned int)cache_vaddr, &unused ); |
---|
| 513 | |
---|
| 514 | // map the user_vaddr to cache_paddr |
---|
| 515 | // in all pages tables defined for the vspace |
---|
| 516 | unsigned int x_cur; |
---|
| 517 | unsigned int y_cur; |
---|
| 518 | for ( x_cur = 0 ; x_cur < X_SIZE ; x_cur++ ) |
---|
| 519 | { |
---|
| 520 | for ( y_cur = 0 ; y_cur < Y_SIZE ; y_cur++ ) |
---|
| 521 | { |
---|
| 522 | if ( _ptabs_paddr[vsid][x_cur][y_cur] ) // Page table is defined |
---|
| 523 | { |
---|
| 524 | _v2p_add_pte2( vsid, |
---|
| 525 | x_cur, |
---|
| 526 | y_cur, |
---|
| 527 | user_vaddr >> 12, |
---|
| 528 | flags, |
---|
| 529 | cache_paddr >> 12, |
---|
| 530 | 0 ); |
---|
| 531 | } |
---|
| 532 | } |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | #if GIET_DEBUG_MMAP |
---|
| 536 | if ( _get_proctime() > GIET_DEBUG_MMAP ) |
---|
[774] | 537 | _printf("\n[DEBUG MMAP] _sys_fat_mmap() : P[%d,%d,%d] map cluster_id = %d\n" |
---|
[760] | 538 | " user_vaddr = %x / cache_paddr = %l\n", |
---|
| 539 | x_id , y_id , p_id , cid , user_vaddr , cache_paddr ); |
---|
| 540 | #endif |
---|
| 541 | |
---|
| 542 | // increment user buffer vaddr |
---|
| 543 | user_vaddr += 4096; |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | // releases the FAT lock |
---|
| 547 | _spin_lock_release( &_fat.fat_lock ); |
---|
| 548 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FAT ); |
---|
| 549 | |
---|
| 550 | #if GIET_DEBUG_MMAP |
---|
| 551 | if ( _get_proctime() > GIET_DEBUG_MMAP ) |
---|
| 552 | _printf("\n[DEBUG MMAP] _sys_fat_mmap() : P[%d,%d,%d] returns buffer %x for file %s\n", |
---|
| 553 | x_id , y_id , p_id , buffer_vbase , inode->name ); |
---|
| 554 | #endif |
---|
| 555 | |
---|
| 556 | // returns pointer on mapped buffer in user space |
---|
| 557 | return buffer_vbase; |
---|
| 558 | |
---|
| 559 | } // end _sys_fat_mmap() |
---|
| 560 | |
---|
| 561 | |
---|
| 562 | ////////////////////////////////////////////////////////////////// |
---|
| 563 | // This function implements the giet_fat_munmap() system call. |
---|
| 564 | ////////////////////////////////////////////////////////////////// |
---|
| 565 | int _sys_fat_munmap( unsigned int vaddr, |
---|
| 566 | unsigned int count ) |
---|
| 567 | { |
---|
| 568 | // get vspace index |
---|
| 569 | unsigned int vsid = _get_context_slot( CTX_VSID_ID ); |
---|
| 570 | |
---|
| 571 | // loop on pages |
---|
| 572 | unsigned int page; |
---|
| 573 | for ( page = 0 ; page < count ; page++ ) |
---|
| 574 | { |
---|
| 575 | unsigned int vpn = (vaddr>>12) + page; |
---|
| 576 | |
---|
| 577 | // loop on all page tables defined for the vspace |
---|
| 578 | unsigned int x_cur; |
---|
| 579 | unsigned int y_cur; |
---|
| 580 | for ( x_cur = 0 ; x_cur < X_SIZE ; x_cur++ ) |
---|
| 581 | { |
---|
| 582 | for ( y_cur = 0 ; y_cur < Y_SIZE ; y_cur++ ) |
---|
| 583 | { |
---|
| 584 | if ( _ptabs_paddr[vsid][x_cur][y_cur] ) // Page table is defined |
---|
| 585 | { |
---|
| 586 | _v2p_del_pte2( vsid , x_cur , y_cur , vpn ); |
---|
| 587 | } |
---|
| 588 | } |
---|
| 589 | } |
---|
| 590 | } |
---|
| 591 | return 0; |
---|
| 592 | } // end _sys_fat_munmap() |
---|
| 593 | |
---|
| 594 | |
---|
| 595 | |
---|
[774] | 596 | |
---|
| 597 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 598 | // This service function is called by the _sys_fat_dump() kernel function. |
---|
| 599 | // It displays on the calling thread terminal the content of a 512 bytes buffer |
---|
| 600 | // defined by the <buf> pointer. |
---|
| 601 | // The <string> , <cluster_id> and <block_id> arguments are only used |
---|
| 602 | // to build a meaningful title: <string> is an identifier, <cluster_id> is |
---|
| 603 | // the cluster index (in file or FAT), <block_id> is the block index (in cluster). |
---|
| 604 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 605 | static void _dump_block( unsigned char* buf, |
---|
[790] | 606 | char* string, |
---|
| 607 | unsigned int cluster_id, |
---|
| 608 | unsigned int block_id ) |
---|
[774] | 609 | { |
---|
| 610 | unsigned int line; |
---|
| 611 | unsigned int word; |
---|
| 612 | |
---|
[786] | 613 | _user_printf("\n--- %s : cluster_id = %d / block_id = %d ---\n", |
---|
[774] | 614 | string , cluster_id , block_id ); |
---|
| 615 | |
---|
| 616 | for ( line = 0 ; line < 16 ; line++ ) |
---|
| 617 | { |
---|
| 618 | // display line index |
---|
| 619 | _user_printf("%x : ", line ); |
---|
| 620 | |
---|
| 621 | // display 8*4 bytes hexa per line |
---|
| 622 | for ( word=0 ; word<8 ; word++ ) |
---|
| 623 | { |
---|
| 624 | unsigned int byte = (line<<5) + (word<<2); |
---|
| 625 | unsigned int hexa = (buf[byte ]<<24) | |
---|
| 626 | (buf[byte+1]<<16) | |
---|
| 627 | (buf[byte+2]<< 8) | |
---|
| 628 | (buf[byte+3] ); |
---|
| 629 | _user_printf(" %X |", hexa ); |
---|
| 630 | } |
---|
| 631 | _user_printf("\n"); |
---|
| 632 | } |
---|
| 633 | } // end _dump_block() |
---|
| 634 | |
---|
| 635 | |
---|
| 636 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 637 | // This function implements the giet_fat_dump() system call. |
---|
| 638 | // It analyse the <type>, <pathname> and <sector_id> arguments to select |
---|
| 639 | // a 512 bytes sector, and display the sector content on the calling thread TTY. |
---|
| 640 | // The <type> argument can take the following values : |
---|
| 641 | // - DUMP_BS : boot sector |
---|
| 642 | // - DUMP_FS : fs_info sector |
---|
| 643 | // - DUMP_FAT : fat sector, identified by <sector_id> |
---|
| 644 | // - DUMP_FILE : file sector, identified by <pathname> and <sector_id> |
---|
| 645 | // - DUMP_DIR : directory sector, identified by <pathname> and <sector_id> |
---|
| 646 | // The <sector_id> argument defines the sector index in the file or in the FAT. |
---|
| 647 | // For a file or a directory, or for the FAT itself, it uses the kernel File-Caches |
---|
| 648 | // or Fat-Cache, and the Inode-Tree. |
---|
| 649 | // For the boot sector, or fs_info sector, it access directly the block device, |
---|
| 650 | // that is loaded in the FAT descriptor block-buffer. |
---|
| 651 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 652 | // Returns 0 in case of success. |
---|
| 653 | // Returns 1 in case of error. |
---|
| 654 | /////////////////////////////////////////////////////////////////////////////////// |
---|
| 655 | int _sys_fat_dump( unsigned int type, |
---|
| 656 | char* pathname, |
---|
| 657 | unsigned int sector_id ) |
---|
| 658 | { |
---|
| 659 | unsigned char* buf; // pointer on 512 bytes buffer |
---|
| 660 | unsigned int cluster_id = sector_id >> 3; // cluster index in cache |
---|
| 661 | unsigned int block_id = sector_id & 0x7; // cluster index in cache |
---|
| 662 | unsigned int fd_id; // file/dir descriptor index |
---|
| 663 | |
---|
| 664 | if( type == DUMP_BS ) // dump the boot sector |
---|
| 665 | { |
---|
| 666 | // access block_device |
---|
| 667 | buf = _fat.block_buffer; |
---|
| 668 | if ( _fat_ioc_access( 1, // descheduling mode |
---|
| 669 | 1, // read |
---|
| 670 | 0, // boot sector lba |
---|
| 671 | (unsigned int)buf, |
---|
| 672 | 1 ) ) // one block |
---|
| 673 | { |
---|
| 674 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot access device for BS\n"); |
---|
| 675 | return 1; |
---|
| 676 | } |
---|
| 677 | _fat.block_buffer_lba = 0; |
---|
| 678 | |
---|
| 679 | // dump boot sector |
---|
| 680 | _dump_block( buf, "boot sector" , 0 , 0 ); |
---|
| 681 | } |
---|
| 682 | else if ( type == DUMP_FS ) // dump the fs_info sector |
---|
| 683 | { |
---|
| 684 | // access block_device |
---|
| 685 | buf = _fat.block_buffer; |
---|
| 686 | if ( _fat_ioc_access( 1, // descheduling mode |
---|
| 687 | 1, // read |
---|
| 688 | _fat.fs_info_lba, // fs_info sector lba |
---|
| 689 | (unsigned int)buf, |
---|
| 690 | 1 ) ) // one block |
---|
| 691 | { |
---|
| 692 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot access device for FS\n"); |
---|
| 693 | return 1; |
---|
| 694 | } |
---|
| 695 | _fat.block_buffer_lba = _fat.fs_info_lba; |
---|
| 696 | |
---|
| 697 | // dump fs-info sector |
---|
| 698 | _dump_block( buf, "fs_info sector" , 0 , 0 ); |
---|
| 699 | } |
---|
| 700 | else if ( type == DUMP_FAT ) // dump a fat sector |
---|
| 701 | { |
---|
| 702 | // get pointer on the relevant buffer descriptor in Fat-Cache |
---|
| 703 | fat_cache_desc_t* pdesc; |
---|
| 704 | if ( _get_fat_cache_buffer( cluster_id, &pdesc ) ) |
---|
| 705 | { |
---|
| 706 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot access Fat-Cache\n"); |
---|
| 707 | return 1; |
---|
| 708 | } |
---|
| 709 | buf = pdesc->buffer + (block_id<<9); |
---|
| 710 | |
---|
| 711 | // dump fat sector |
---|
| 712 | _dump_block( buf, "fat" , cluster_id , block_id ); |
---|
| 713 | } |
---|
| 714 | else if ( type == DUMP_FILE ) // dump a file sector |
---|
| 715 | { |
---|
| 716 | // open file |
---|
| 717 | fd_id = _fat_open( pathname , O_RDONLY ); |
---|
| 718 | if ( fd_id < 0 ) |
---|
| 719 | { |
---|
| 720 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot open file <%s>\n", pathname ); |
---|
| 721 | return 1; |
---|
| 722 | } |
---|
| 723 | fat_inode_t* inode = _fat.fd[fd_id].inode; |
---|
| 724 | |
---|
| 725 | // get pointer on the relevant buffer descriptor in File-Cache |
---|
| 726 | fat_cache_desc_t* pdesc; |
---|
| 727 | if ( _get_file_cache_buffer( inode, cluster_id, 0, &pdesc ) ) |
---|
| 728 | { |
---|
| 729 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot access file <%s>\n", pathname ); |
---|
| 730 | return 1; |
---|
| 731 | } |
---|
| 732 | buf = pdesc->buffer + (block_id<<9); |
---|
| 733 | |
---|
| 734 | // dump file sector |
---|
| 735 | _dump_block( buf, pathname , cluster_id , block_id ); |
---|
| 736 | |
---|
| 737 | // close file |
---|
| 738 | _fat_close( fd_id ); |
---|
| 739 | } |
---|
| 740 | else if ( type == DUMP_DIR ) // dump a directory sector |
---|
| 741 | { |
---|
| 742 | // open directory |
---|
| 743 | fd_id = _fat_opendir( pathname ); |
---|
| 744 | if ( fd_id < 0 ) |
---|
| 745 | { |
---|
| 746 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot open <%s>\n", pathname ); |
---|
| 747 | return 1; |
---|
| 748 | } |
---|
| 749 | fat_inode_t* inode = _fat.fd[fd_id].inode; |
---|
| 750 | |
---|
| 751 | // get pointer on the relevant buffer descriptor in File-Cache |
---|
| 752 | fat_cache_desc_t* pdesc; |
---|
| 753 | if ( _get_file_cache_buffer( inode, cluster_id, 0, &pdesc ) ) |
---|
| 754 | { |
---|
| 755 | _printf("\n[FAT ERROR] _sys_fat_dump(): cannot access <%s>\n", pathname ); |
---|
| 756 | return 1; |
---|
| 757 | } |
---|
| 758 | buf = pdesc->buffer + (block_id<<9); |
---|
| 759 | |
---|
| 760 | // dump directory sector |
---|
| 761 | _dump_block( buf, pathname , cluster_id , block_id ); |
---|
| 762 | |
---|
| 763 | // close directory |
---|
| 764 | _fat_closedir( fd_id ); |
---|
| 765 | } |
---|
| 766 | |
---|
| 767 | return 0; |
---|
| 768 | } // end sys_fat_dump |
---|
| 769 | |
---|
| 770 | |
---|
| 771 | |
---|
[709] | 772 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 773 | // Applications related syscall handlers |
---|
| 774 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 775 | |
---|
[707] | 776 | //////////////////////////////////////////////////////////////////////// |
---|
[760] | 777 | // This function is called by the _sys_exec_application() function |
---|
[709] | 778 | // to reload all data segments contained in an application.elf file. |
---|
[714] | 779 | // File checking is minimal, because these segments have already |
---|
| 780 | // been loaded by the boot code. |
---|
[709] | 781 | //////////////////////////////////////////////////////////////////////// |
---|
[707] | 782 | static unsigned int _load_writable_segments( mapping_vspace_t* vspace ) |
---|
| 783 | { |
---|
[709] | 784 | |
---|
| 785 | #if GIET_DEBUG_EXEC |
---|
[707] | 786 | unsigned int gpid = _get_procid(); |
---|
| 787 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 788 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 789 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 790 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[709] | 791 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 792 | _printf("\n[DEBUG EXEC] _load_writable_segments() at cycle %d\n" |
---|
| 793 | "P[%d,%d,%d] enters for %s\n", |
---|
| 794 | _get_proctime() , x , y , p , vspace->name ); |
---|
[707] | 795 | #endif |
---|
[459] | 796 | |
---|
[707] | 797 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 798 | mapping_vseg_t* vseg = _get_vseg_base(header); |
---|
| 799 | |
---|
[709] | 800 | unsigned int vseg_id; // vseg index in mapping |
---|
| 801 | char buf[4096]; // buffer to store one cluster |
---|
[714] | 802 | unsigned int fd = 0; // file descriptor |
---|
| 803 | unsigned int found = 0; |
---|
[707] | 804 | |
---|
[709] | 805 | // first scan on vsegs in vspace to find the .elf pathname |
---|
[707] | 806 | for (vseg_id = vspace->vseg_offset; |
---|
| 807 | vseg_id < (vspace->vseg_offset + vspace->vsegs); |
---|
| 808 | vseg_id++) |
---|
| 809 | { |
---|
[709] | 810 | if( vseg[vseg_id].type == VSEG_TYPE_ELF ) |
---|
[707] | 811 | { |
---|
[709] | 812 | // open the .elf file associated to vspace |
---|
[707] | 813 | fd = _fat_open( vseg[vseg_id].binpath , O_RDONLY ); |
---|
[709] | 814 | if ( fd < 0 ) return 1; |
---|
[707] | 815 | |
---|
[709] | 816 | #if GIET_DEBUG_EXEC |
---|
| 817 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 818 | _printf("\n[DEBUG EXEC] _load_writable_segments() at cycle %d\n" |
---|
| 819 | "P[%d,%d,%d] open %s / fd = %d\n", |
---|
| 820 | _get_proctime() , x , y , p , vseg[vseg_id].binpath , fd ); |
---|
[707] | 821 | #endif |
---|
[714] | 822 | found = 1; |
---|
| 823 | break; |
---|
| 824 | |
---|
[707] | 825 | } |
---|
| 826 | } |
---|
[709] | 827 | |
---|
[714] | 828 | // check .elf file found |
---|
| 829 | if ( found == 0 ) |
---|
| 830 | { |
---|
[733] | 831 | _printf("\n[GIET ERROR] _load_writable_segments() : .elf not found\n"); |
---|
[714] | 832 | return 1; |
---|
| 833 | } |
---|
| 834 | |
---|
[707] | 835 | // load Elf-Header into buffer from .elf file |
---|
[709] | 836 | if ( _fat_lseek( fd, 0, SEEK_SET ) < 0 ) |
---|
| 837 | { |
---|
[733] | 838 | _printf("\n[GIET ERROR] _load_writable_segments() : cannot seek\n"); |
---|
[709] | 839 | _fat_close( fd ); |
---|
| 840 | return 1; |
---|
| 841 | } |
---|
[760] | 842 | if ( _fat_read( fd, (unsigned int)buf, 4096, 0, 0, 0 ) < 0 ) |
---|
[709] | 843 | { |
---|
[733] | 844 | _printf("\n[GIET ERROR] _load_writable_segments() : cannot read\n"); |
---|
[709] | 845 | _fat_close( fd ); |
---|
| 846 | return 1; |
---|
| 847 | } |
---|
[707] | 848 | |
---|
[709] | 849 | #if GIET_DEBUG_EXEC |
---|
| 850 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 851 | _printf("\n[DEBUG EXEC] _load_writable_segments() at cycle %d\n" |
---|
| 852 | "P[%d,%d,%d] loaded Elf-Header\n", |
---|
| 853 | _get_proctime() , x , y , p ); |
---|
[707] | 854 | #endif |
---|
| 855 | |
---|
| 856 | // get nsegments and Program-Header-Table offset from Elf-Header |
---|
| 857 | Elf32_Ehdr* elf_header_ptr = (Elf32_Ehdr*)buf; |
---|
| 858 | unsigned int offset = elf_header_ptr->e_phoff; |
---|
| 859 | unsigned int nsegments = elf_header_ptr->e_phnum; |
---|
| 860 | |
---|
| 861 | // load Program-Header-Table from .elf file |
---|
[709] | 862 | if ( _fat_lseek( fd, offset, SEEK_SET ) < 0 ) |
---|
| 863 | { |
---|
| 864 | _fat_close( fd ); |
---|
| 865 | return 1; |
---|
| 866 | } |
---|
[760] | 867 | if ( _fat_read( fd, (unsigned int)buf, 4096, 0, 0, 0 ) < 0 ) |
---|
[709] | 868 | { |
---|
| 869 | _fat_close( fd ); |
---|
| 870 | return 1; |
---|
| 871 | } |
---|
[707] | 872 | |
---|
[709] | 873 | #if GIET_DEBUG_EXEC |
---|
| 874 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 875 | _printf("\n[DEBUG EXEC] _load_writable_segments() at cycle %d\n" |
---|
| 876 | "P[%d,%d,%d] loaded Program-Header-Table\n", |
---|
| 877 | _get_proctime() , x , y , p ); |
---|
[707] | 878 | #endif |
---|
| 879 | |
---|
| 880 | // set Program-Header-Table pointer |
---|
| 881 | Elf32_Phdr* elf_pht_ptr = (Elf32_Phdr*)buf; |
---|
| 882 | |
---|
[709] | 883 | // second scan on vsegs in vspace to load the seg_data segments : |
---|
| 884 | // - type == VSEG_TYPE_ELF |
---|
| 885 | // - non eXecutable |
---|
| 886 | for (vseg_id = vspace->vseg_offset; |
---|
| 887 | vseg_id < (vspace->vseg_offset + vspace->vsegs); |
---|
| 888 | vseg_id++) |
---|
[707] | 889 | { |
---|
[709] | 890 | if( (vseg[vseg_id].type == VSEG_TYPE_ELF) && // type ELF |
---|
| 891 | ((vseg[vseg_id].mode & 0x4) == 0) ) // non executable |
---|
[707] | 892 | { |
---|
[709] | 893 | // get vbase and pbase |
---|
| 894 | paddr_t pbase = vseg[vseg_id].pbase; |
---|
| 895 | unsigned int vbase = vseg[vseg_id].vbase; |
---|
[707] | 896 | |
---|
[709] | 897 | // scan segments in Progam-Header-Table to find match |
---|
| 898 | // No match checking as the segment was previously found |
---|
| 899 | unsigned int seg; |
---|
| 900 | for (seg = 0 ; seg < nsegments ; seg++) |
---|
| 901 | { |
---|
| 902 | if ( (elf_pht_ptr[seg].p_type == PT_LOAD) && // loadable |
---|
| 903 | (elf_pht_ptr[seg].p_flags & PF_W) && // writable |
---|
| 904 | (elf_pht_ptr[seg].p_vaddr == vbase) ) // matching |
---|
| 905 | { |
---|
| 906 | // Get segment offset and size in .elf file |
---|
| 907 | unsigned int seg_offset = elf_pht_ptr[seg].p_offset; |
---|
| 908 | unsigned int seg_size = elf_pht_ptr[seg].p_filesz; |
---|
[707] | 909 | |
---|
[709] | 910 | // compute destination address and extension for _fat_read() |
---|
| 911 | unsigned int dest = (unsigned int)pbase; |
---|
[760] | 912 | unsigned int extend = (unsigned int)(pbase>>32); |
---|
[709] | 913 | |
---|
| 914 | // load the segment |
---|
| 915 | if ( _fat_lseek( fd, seg_offset, SEEK_SET ) < 0 ) |
---|
| 916 | { |
---|
| 917 | _fat_close( fd ); |
---|
| 918 | return 1; |
---|
| 919 | } |
---|
[760] | 920 | if ( _fat_read( fd, dest, seg_size, extend, 0, FAT_PADDR_MODE ) < 0 ) |
---|
[709] | 921 | { |
---|
| 922 | _fat_close( fd ); |
---|
| 923 | return 1; |
---|
| 924 | } |
---|
| 925 | } |
---|
| 926 | } |
---|
| 927 | |
---|
| 928 | #if GIET_DEBUG_EXEC |
---|
| 929 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 930 | _printf("\n[DEBUG EXEC] _load_writable_segments() at cycle %d\n" |
---|
| 931 | "P[%d,%d,%d] loaded segment %x\n", |
---|
| 932 | _get_proctime() , x , y , p , vbase ); |
---|
[707] | 933 | #endif |
---|
| 934 | } |
---|
| 935 | } // end loop on writable & loadable segments |
---|
| 936 | |
---|
| 937 | // close .elf file |
---|
| 938 | _fat_close( fd ); |
---|
| 939 | |
---|
| 940 | return 0; |
---|
| 941 | } // end load_writable_segments() |
---|
| 942 | |
---|
[648] | 943 | |
---|
[709] | 944 | |
---|
[648] | 945 | /////////////////////////////////////// |
---|
[709] | 946 | int _sys_exec_application( char* name ) |
---|
[648] | 947 | { |
---|
| 948 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 949 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
[709] | 950 | mapping_thread_t * thread = _get_thread_base(header); |
---|
| 951 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
[648] | 952 | |
---|
| 953 | unsigned int vspace_id; |
---|
[709] | 954 | unsigned int thread_id; |
---|
[648] | 955 | |
---|
[709] | 956 | #if GIET_DEBUG_EXEC |
---|
| 957 | unsigned int gpid = _get_procid(); |
---|
| 958 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 959 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 960 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 961 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[648] | 962 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 963 | _printf("\n[DEBUG EXEC] _sys_exec_application() at cycle %d\n" |
---|
| 964 | "P[%d,%d,%d] enters for vspace %s\n", |
---|
| 965 | _get_proctime() , x, y, p, name ); |
---|
[648] | 966 | #endif |
---|
| 967 | |
---|
[709] | 968 | unsigned int y_size = header->y_size; |
---|
| 969 | |
---|
| 970 | // scan vspaces to find matching vspace name |
---|
| 971 | for (vspace_id = 0 ; vspace_id < header->vspaces ; vspace_id++) |
---|
[648] | 972 | { |
---|
[709] | 973 | if ( _strcmp( vspace[vspace_id].name, name ) == 0 ) // vspace found |
---|
[648] | 974 | { |
---|
| 975 | |
---|
[709] | 976 | #if GIET_DEBUG_EXEC |
---|
| 977 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 978 | _printf("\n[DEBUG EXEC] _sys_exec_application() at cycle %d\n" |
---|
| 979 | "P[%d,%d,%d] found vspace %s\n", |
---|
| 980 | _get_proctime() , x, y, p, name ); |
---|
[709] | 981 | #endif |
---|
| 982 | // reload writable segments |
---|
| 983 | if ( _load_writable_segments( &vspace[vspace_id] ) ) |
---|
[648] | 984 | { |
---|
[709] | 985 | _printf("[GIET ERROR] _sys_exec_application() : " |
---|
| 986 | "can't load data segment for vspace %s\n", name ); |
---|
[714] | 987 | return SYSCALL_CANNOT_LOAD_DATA_SEGMENT; |
---|
[709] | 988 | } |
---|
| 989 | |
---|
| 990 | #if GIET_DEBUG_EXEC |
---|
| 991 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 992 | _printf("\n[DEBUG EXEC] _sys_exec_application() at cycle %d\n" |
---|
| 993 | "P[%d,%d,%d] loaded all writable segments for vspace %s\n", |
---|
| 994 | _get_proctime() , x, y, p, name ); |
---|
[709] | 995 | #endif |
---|
| 996 | // scan threads in vspace with three goals : |
---|
| 997 | // - check all threads desactivated |
---|
| 998 | // - re-initialise all threads contexts |
---|
| 999 | // - find main thread |
---|
| 1000 | unsigned int main_found = 0; |
---|
| 1001 | unsigned int main_ltid = 0; |
---|
| 1002 | static_scheduler_t* main_psched = NULL; |
---|
| 1003 | unsigned int min = vspace[vspace_id].thread_offset; |
---|
| 1004 | unsigned int max = min + vspace[vspace_id].threads; |
---|
| 1005 | for ( thread_id = min ; thread_id < max ; thread_id++ ) |
---|
| 1006 | { |
---|
| 1007 | // get thread identifiers : [x,y,p,ltid] |
---|
| 1008 | unsigned int cid = thread[thread_id].clusterid; |
---|
[648] | 1009 | unsigned int x = cid / y_size; |
---|
| 1010 | unsigned int y = cid % y_size; |
---|
[709] | 1011 | unsigned int p = thread[thread_id].proclocid; |
---|
| 1012 | unsigned int ltid = thread[thread_id].ltid; |
---|
| 1013 | unsigned int vsid = thread[thread_id].stack_vseg_id; |
---|
[648] | 1014 | |
---|
[709] | 1015 | // get scheduler pointer |
---|
| 1016 | static_scheduler_t* psched = _schedulers[x][y][p]; |
---|
[648] | 1017 | |
---|
[709] | 1018 | // check thread non active |
---|
| 1019 | if ( psched->context[ltid].slot[CTX_NORUN_ID] == 0 ) // runnable !!! |
---|
| 1020 | { |
---|
| 1021 | _printf("\n[GIET ERROR] in _sys_exec_application() : " |
---|
| 1022 | "thread %s already active in vspace %s\n", |
---|
| 1023 | thread[thread_id].name, name ); |
---|
[714] | 1024 | return SYSCALL_THREAD_ALREADY_ACTIVE; |
---|
[709] | 1025 | } |
---|
| 1026 | |
---|
| 1027 | // initialise thread context |
---|
| 1028 | unsigned int ctx_epc = psched->context[ltid].slot[CTX_ENTRY_ID]; |
---|
| 1029 | unsigned int ctx_sp = vseg[vsid].vbase + vseg[vsid].length; |
---|
| 1030 | unsigned int ctx_ra = (unsigned int)&_ctx_eret; |
---|
| 1031 | unsigned int ctx_sr = GIET_SR_INIT_VALUE; |
---|
[648] | 1032 | |
---|
[709] | 1033 | psched->context[ltid].slot[CTX_EPC_ID] = ctx_epc; |
---|
| 1034 | psched->context[ltid].slot[CTX_RA_ID] = ctx_ra; |
---|
| 1035 | psched->context[ltid].slot[CTX_SR_ID] = ctx_sr; |
---|
| 1036 | psched->context[ltid].slot[CTX_SP_ID] = ctx_sp; |
---|
| 1037 | |
---|
| 1038 | // register information required to activate main thread |
---|
| 1039 | // actual activation done when threads initialisation is completed |
---|
| 1040 | if ( thread[thread_id].is_main ) |
---|
| 1041 | { |
---|
| 1042 | main_psched = psched; |
---|
| 1043 | main_ltid = ltid; |
---|
| 1044 | main_found = 1; |
---|
| 1045 | } |
---|
| 1046 | |
---|
[648] | 1047 | #if GIET_DEBUG_EXEC |
---|
| 1048 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1049 | _printf("\n[DEBUG EXEC] _sys_exec_application() at cycle %d\n" |
---|
| 1050 | "P[%d,%d,%d] initialise thread %s in vspace %s\n", |
---|
| 1051 | _get_proctime() , x, y, p, thread[thread_id].name , name ); |
---|
[648] | 1052 | #endif |
---|
[714] | 1053 | } // end loop on threads |
---|
[648] | 1054 | |
---|
[709] | 1055 | // activate main thread |
---|
| 1056 | if ( main_found ) |
---|
| 1057 | { |
---|
| 1058 | main_psched->context[main_ltid].slot[CTX_NORUN_ID] = 0; |
---|
| 1059 | } |
---|
| 1060 | else |
---|
| 1061 | { |
---|
| 1062 | _printf("\n[GIET ERROR] in _sys_exec_application() : " |
---|
| 1063 | "main not found in vspace %s\n", name ); |
---|
[714] | 1064 | return SYSCALL_MAIN_NOT_FOUND; |
---|
[709] | 1065 | } |
---|
| 1066 | |
---|
[714] | 1067 | _printf("\n[GIET WARNING] application %s launched : %d threads\n", |
---|
| 1068 | name , max-min ); |
---|
| 1069 | |
---|
| 1070 | return SYSCALL_OK; |
---|
[709] | 1071 | } |
---|
| 1072 | } // end of loop on vspaces |
---|
[648] | 1073 | |
---|
[709] | 1074 | // vspace not found |
---|
| 1075 | _printf("\n[GIET ERROR] in _sys_exec_application() : " |
---|
| 1076 | "vspace %s not found\n", name ); |
---|
[714] | 1077 | return SYSCALL_VSPACE_NOT_FOUND; |
---|
[648] | 1078 | |
---|
[709] | 1079 | } // end _sys_exec_application() |
---|
[648] | 1080 | |
---|
[709] | 1081 | |
---|
[648] | 1082 | /////////////////////////////////////// |
---|
[709] | 1083 | int _sys_kill_application( char* name ) |
---|
[648] | 1084 | { |
---|
| 1085 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1086 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
[709] | 1087 | mapping_thread_t * thread = _get_thread_base(header); |
---|
[648] | 1088 | |
---|
| 1089 | unsigned int vspace_id; |
---|
[709] | 1090 | unsigned int thread_id; |
---|
[648] | 1091 | |
---|
[707] | 1092 | #if GIET_DEBUG_EXEC |
---|
[709] | 1093 | unsigned int gpid = _get_procid(); |
---|
| 1094 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 1095 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 1096 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 1097 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[648] | 1098 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1099 | _printf("\n[DEBUG EXEC] _sys_kill_application() at cycle %d\n" |
---|
| 1100 | "P[%d,%d,%d] enters for vspace %s\n", |
---|
| 1101 | _get_proctime() , x , y , p , name ); |
---|
[648] | 1102 | #endif |
---|
| 1103 | |
---|
[709] | 1104 | // shell cannot be killed |
---|
| 1105 | if ( _strcmp( name , "shell" ) == 0 ) |
---|
[648] | 1106 | { |
---|
[709] | 1107 | _printf("\n[GIET ERROR] in _sys_kill_application() : " |
---|
| 1108 | "%s application cannot be killed\n", name ); |
---|
[714] | 1109 | return SYSCALL_APPLI_CANNOT_BE_KILLED; |
---|
[707] | 1110 | } |
---|
[648] | 1111 | |
---|
[709] | 1112 | // scan vspaces to find matching vspace name |
---|
| 1113 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
[707] | 1114 | { |
---|
[709] | 1115 | if ( _strcmp( vspace[vspace_id].name, name ) == 0 ) |
---|
| 1116 | { |
---|
| 1117 | // scan threads to send KILL signal to all threads in vspace |
---|
| 1118 | unsigned int y_size = header->y_size; |
---|
| 1119 | unsigned int min = vspace[vspace_id].thread_offset; |
---|
| 1120 | unsigned int max = min + vspace[vspace_id].threads; |
---|
| 1121 | for ( thread_id = min ; thread_id < max ; thread_id++ ) |
---|
| 1122 | { |
---|
| 1123 | unsigned int cid = thread[thread_id].clusterid; |
---|
| 1124 | unsigned int x = cid / y_size; |
---|
| 1125 | unsigned int y = cid % y_size; |
---|
| 1126 | unsigned int p = thread[thread_id].proclocid; |
---|
| 1127 | unsigned int ltid = thread[thread_id].ltid; |
---|
[648] | 1128 | |
---|
[709] | 1129 | // get scheduler pointer for processor running the thread |
---|
| 1130 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
| 1131 | |
---|
| 1132 | // set KILL signal bit |
---|
| 1133 | _atomic_or( &psched->context[ltid].slot[CTX_SIGS_ID] , SIGS_MASK_KILL ); |
---|
| 1134 | } |
---|
| 1135 | |
---|
[714] | 1136 | _printf("\n[GIET WARNING] application %s killed / %d threads\n", |
---|
| 1137 | name , max-min ); |
---|
[709] | 1138 | |
---|
[714] | 1139 | return SYSCALL_OK; |
---|
[709] | 1140 | } |
---|
| 1141 | } // en loop on vspaces |
---|
| 1142 | |
---|
| 1143 | _printf("\n[GIET ERROR] in _sys_kill_application() : " |
---|
| 1144 | "application %s not found\n", name ); |
---|
[714] | 1145 | return SYSCALL_VSPACE_NOT_FOUND; |
---|
[709] | 1146 | |
---|
| 1147 | } // end _sys_kill_application() |
---|
| 1148 | |
---|
| 1149 | |
---|
| 1150 | |
---|
[714] | 1151 | ////////////////////////////////////////// |
---|
| 1152 | int _sys_applications_status( char* name ) |
---|
[709] | 1153 | { |
---|
| 1154 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1155 | mapping_thread_t * thread = _get_thread_base(header); |
---|
| 1156 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
| 1157 | mapping_cluster_t * cluster = _get_cluster_base(header); |
---|
| 1158 | |
---|
[714] | 1159 | unsigned int thread_id; // thread index in mapping |
---|
| 1160 | unsigned int vspace_id; // vspace index in mapping |
---|
[709] | 1161 | |
---|
[714] | 1162 | // scan vspaces |
---|
[709] | 1163 | for( vspace_id = 0 ; vspace_id < header->vspaces ; vspace_id++ ) |
---|
[707] | 1164 | { |
---|
[714] | 1165 | if ( (name == NULL) || (_strcmp(vspace[vspace_id].name , name ) == 0) ) |
---|
[709] | 1166 | { |
---|
[790] | 1167 | _user_printf("\n--- vspace %s ---\n", vspace[vspace_id].name ); |
---|
[648] | 1168 | |
---|
[714] | 1169 | // scan all threads in vspace |
---|
| 1170 | unsigned int min = vspace[vspace_id].thread_offset ; |
---|
| 1171 | unsigned int max = min + vspace[vspace_id].threads ; |
---|
| 1172 | for ( thread_id = min ; thread_id < max ; thread_id++ ) |
---|
| 1173 | { |
---|
| 1174 | unsigned int clusterid = thread[thread_id].clusterid; |
---|
| 1175 | unsigned int p = thread[thread_id].proclocid; |
---|
| 1176 | unsigned int x = cluster[clusterid].x; |
---|
| 1177 | unsigned int y = cluster[clusterid].y; |
---|
| 1178 | unsigned int ltid = thread[thread_id].ltid; |
---|
| 1179 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
| 1180 | unsigned int norun = psched->context[ltid].slot[CTX_NORUN_ID]; |
---|
| 1181 | unsigned int tty = psched->context[ltid].slot[CTX_TTY_ID]; |
---|
| 1182 | unsigned int current = psched->current; |
---|
| 1183 | |
---|
| 1184 | if ( current == ltid ) |
---|
| 1185 | _user_printf(" - thread %s / P[%d,%d,%d] / ltid = %d / " |
---|
| 1186 | "TTY = %d / norun = %x : running\n", |
---|
| 1187 | thread[thread_id].name, x, y, p, ltid, tty, norun ); |
---|
| 1188 | else if ( norun == 0 ) |
---|
| 1189 | _user_printf(" - thread %s / P[%d,%d,%d] / ltid = %d / " |
---|
| 1190 | "TTY = %d / norun = %x : runable\n", |
---|
| 1191 | thread[thread_id].name, x, y, p, ltid, tty, norun); |
---|
| 1192 | else |
---|
| 1193 | _user_printf(" - thread %s / P[%d,%d,%d] / ltid = %d / " |
---|
| 1194 | "TTY = %d / norun = %x : blocked\n", |
---|
| 1195 | thread[thread_id].name, x, y, p, ltid, tty, norun); |
---|
| 1196 | } |
---|
[648] | 1197 | } |
---|
| 1198 | } |
---|
[709] | 1199 | _user_printf("\n"); |
---|
[714] | 1200 | |
---|
| 1201 | return SYSCALL_OK; |
---|
[709] | 1202 | } // end _sys_applications_status() |
---|
[648] | 1203 | |
---|
[709] | 1204 | |
---|
| 1205 | |
---|
| 1206 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 1207 | // Threads related syscall handlers |
---|
| 1208 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 1209 | |
---|
| 1210 | //////////////////////////////////////////////// |
---|
| 1211 | int _sys_pthread_create( unsigned int* buffer, |
---|
| 1212 | void* attr, |
---|
| 1213 | void* function, |
---|
| 1214 | void* arg ) |
---|
| 1215 | { |
---|
| 1216 | // attr argument not supported |
---|
| 1217 | if ( attr != NULL ) |
---|
[707] | 1218 | { |
---|
[709] | 1219 | _printf("\n[GIET ERROR] in _sys_pthread_create() : " |
---|
| 1220 | "attr argument not supported\n" ); |
---|
| 1221 | |
---|
[714] | 1222 | return SYSCALL_PTHREAD_ARGUMENT_NOT_SUPPORTED; |
---|
[707] | 1223 | } |
---|
| 1224 | |
---|
[709] | 1225 | // get pointers in mapping |
---|
| 1226 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1227 | mapping_thread_t* thread = _get_thread_base(header); |
---|
| 1228 | mapping_vspace_t* vspace = _get_vspace_base(header); |
---|
| 1229 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 1230 | |
---|
| 1231 | // get scheduler for processor running the calling thread |
---|
| 1232 | static_scheduler_t* psched = (static_scheduler_t*)_get_sched(); |
---|
| 1233 | |
---|
| 1234 | // get calling thread local index in scheduler |
---|
| 1235 | unsigned int current = psched->current; |
---|
| 1236 | |
---|
| 1237 | // get vspace index |
---|
| 1238 | unsigned int vspace_id = psched->context[current].slot[CTX_VSID_ID]; |
---|
| 1239 | |
---|
| 1240 | #if GIET_DEBUG_EXEC |
---|
[714] | 1241 | unsigned int gpid = _get_procid(); |
---|
| 1242 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 1243 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 1244 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 1245 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[709] | 1246 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1247 | _printf("\n[DEBUG EXEC] _sys_pthread_create() at cycle %d\n" |
---|
| 1248 | "P[%d,%d,%d] enters for vspace %s / entry = %x\n", |
---|
| 1249 | _get_proctime() , x , y , p , vspace[vspace_id].name , (unsigned int)function ); |
---|
[709] | 1250 | #endif |
---|
| 1251 | |
---|
| 1252 | unsigned int thread_id; // searched thread : local index in mapping |
---|
| 1253 | unsigned int clusterid; // searched thread : cluster index |
---|
| 1254 | unsigned int lpid; // searched thread : processor local index |
---|
| 1255 | unsigned int ltid; // searched thread : scheduler thread index |
---|
| 1256 | unsigned int cx; // searched thread : X coordinate for searched thread |
---|
| 1257 | unsigned int cy; // searched thread : Y coordinate for searched thread |
---|
| 1258 | unsigned int entry; // searched thread : entry point |
---|
| 1259 | unsigned int norun; // searched thread : norun vector |
---|
| 1260 | unsigned int trdid; // searched thread : thread identifier |
---|
| 1261 | |
---|
| 1262 | // scan threads in vspace to find an inactive thread matching function |
---|
| 1263 | unsigned int min = vspace[vspace_id].thread_offset; |
---|
| 1264 | unsigned int max = min + vspace[vspace_id].threads; |
---|
| 1265 | unsigned int found = 0; |
---|
| 1266 | for ( thread_id = min ; (thread_id < max) && (found == 0) ; thread_id++ ) |
---|
[707] | 1267 | { |
---|
[709] | 1268 | // get thread coordinates [cx,cy,lpid] and ltid from mapping |
---|
| 1269 | ltid = thread[thread_id].ltid; |
---|
| 1270 | clusterid = thread[thread_id].clusterid; |
---|
| 1271 | lpid = thread[thread_id].proclocid; |
---|
| 1272 | cx = cluster[clusterid].x; |
---|
| 1273 | cy = cluster[clusterid].y; |
---|
[707] | 1274 | |
---|
[709] | 1275 | // get thread scheduler pointer |
---|
| 1276 | psched = _schedulers[cx][cy][lpid]; |
---|
[707] | 1277 | |
---|
[709] | 1278 | // get thread entry-point, norun-vector, and trdid from context |
---|
| 1279 | entry = psched->context[ltid].slot[CTX_ENTRY_ID]; |
---|
| 1280 | norun = psched->context[ltid].slot[CTX_NORUN_ID]; |
---|
| 1281 | trdid = psched->context[ltid].slot[CTX_TRDID_ID]; |
---|
[707] | 1282 | |
---|
[709] | 1283 | // check matching |
---|
| 1284 | if ( ((unsigned int)function == entry ) && |
---|
| 1285 | (norun & NORUN_MASK_THREAD) ) found = 1; |
---|
| 1286 | |
---|
| 1287 | } // end loop on threads |
---|
| 1288 | |
---|
| 1289 | if ( found ) // one matching inactive thread has been found |
---|
| 1290 | { |
---|
| 1291 | // set argument value in thread context |
---|
| 1292 | if ( arg != NULL ) psched->context[ltid].slot[CTX_A0_ID] = (unsigned int)arg; |
---|
| 1293 | |
---|
| 1294 | // activate thread |
---|
| 1295 | psched->context[ltid].slot[CTX_NORUN_ID] = 0; |
---|
| 1296 | |
---|
| 1297 | // return launched thead global identifier |
---|
| 1298 | *buffer = trdid; |
---|
| 1299 | |
---|
| 1300 | #if GIET_DEBUG_EXEC |
---|
| 1301 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1302 | _printf("\n[DEBUG EXEC] _sys_pthread_create() at cycle %d\n" |
---|
| 1303 | "P[%d,%d,%d] exit : thread %x launched in vspace %s\n", |
---|
| 1304 | _get_proctime() , x , y , p , trdid , vspace[vspace_id].name ); |
---|
[709] | 1305 | #endif |
---|
[714] | 1306 | return SYSCALL_OK; |
---|
[707] | 1307 | } |
---|
[709] | 1308 | else // no matching thread found |
---|
| 1309 | { |
---|
| 1310 | _printf("\n[GIET ERROR] in _sys_pthread_create() : " |
---|
| 1311 | "no matching thread for entry = %x in vspace %s\n", |
---|
| 1312 | (unsigned int)function , vspace[vspace_id].name ); |
---|
| 1313 | |
---|
[714] | 1314 | return SYSCALL_THREAD_NOT_FOUND; |
---|
[709] | 1315 | } |
---|
[707] | 1316 | |
---|
[709] | 1317 | } // end _sys_pthread_create() |
---|
| 1318 | |
---|
| 1319 | |
---|
| 1320 | /////////////////////////////////////////// |
---|
| 1321 | int _sys_pthread_join( unsigned int trdid, |
---|
| 1322 | void* ptr ) |
---|
| 1323 | { |
---|
| 1324 | // ptr argument not supported |
---|
| 1325 | if ( ptr != NULL ) |
---|
| 1326 | { |
---|
| 1327 | _printf("\n[GIET ERROR] in _sys_pthread_join() : " |
---|
| 1328 | "ptr argument not supported, must be NULL\n" ); |
---|
| 1329 | |
---|
[714] | 1330 | return SYSCALL_PTHREAD_ARGUMENT_NOT_SUPPORTED; |
---|
[709] | 1331 | } |
---|
| 1332 | |
---|
[714] | 1333 | // get calling thread vspace |
---|
| 1334 | unsigned int caller_vspace = _get_context_slot( CTX_VSID_ID ); |
---|
[709] | 1335 | |
---|
| 1336 | #if GIET_DEBUG_EXEC |
---|
[714] | 1337 | unsigned int gpid = _get_procid(); |
---|
| 1338 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 1339 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 1340 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 1341 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[648] | 1342 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1343 | _printf("\n[DEBUG EXEC] _sys_pthread_join() at cycle %d\n" |
---|
| 1344 | "P[%d,%d,%d] enters for thread %x in vspace %d\n", |
---|
| 1345 | _get_proctime() , x , y , p , trdid , caller_vspace ); |
---|
[648] | 1346 | #endif |
---|
| 1347 | |
---|
[714] | 1348 | // get target thread indexes from trdid |
---|
[709] | 1349 | unsigned int cx = (trdid>>24) & 0xFF; |
---|
| 1350 | unsigned int cy = (trdid>>16) & 0xFF; |
---|
| 1351 | unsigned int lpid = (trdid>>8 ) & 0xFF; |
---|
| 1352 | unsigned int ltid = (trdid ) & 0xFF; |
---|
| 1353 | |
---|
| 1354 | // get target thread scheduler, vspace and registered trdid |
---|
| 1355 | static_scheduler_t* psched = _schedulers[cx][cy][lpid]; |
---|
| 1356 | unsigned int target_vspace = psched->context[ltid].slot[CTX_VSID_ID]; |
---|
| 1357 | unsigned int registered_trdid = psched->context[ltid].slot[CTX_TRDID_ID]; |
---|
| 1358 | |
---|
| 1359 | // check trdid |
---|
| 1360 | if ( trdid != registered_trdid ) |
---|
| 1361 | { |
---|
| 1362 | _printf("\nerror in _sys_pthread_join() : " |
---|
| 1363 | "trdid = %x / registered_trdid = %x\n", |
---|
| 1364 | trdid , registered_trdid ); |
---|
| 1365 | |
---|
[714] | 1366 | return SYSCALL_UNCOHERENT_THREAD_CONTEXT; |
---|
[709] | 1367 | } |
---|
| 1368 | |
---|
| 1369 | // check calling thread and target thread in same vspace |
---|
| 1370 | if ( caller_vspace != target_vspace ) |
---|
| 1371 | { |
---|
| 1372 | _printf("\n[GIET ERROR] in _sys_pthread_join() : " |
---|
| 1373 | " calling thread and target thread not in same vspace\n"); |
---|
| 1374 | |
---|
[714] | 1375 | return SYSCALL_NOT_IN_SAME_VSPACE; |
---|
[709] | 1376 | } |
---|
| 1377 | |
---|
| 1378 | // get target thread state |
---|
[820] | 1379 | volatile unsigned int* pnorun = &psched->context[ltid].slot[CTX_NORUN_ID]; |
---|
| 1380 | while (*pnorun == 0) _sys_pthread_yield(); |
---|
[709] | 1381 | |
---|
[714] | 1382 | #if GIET_DEBUG_EXEC |
---|
| 1383 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
| 1384 | _printf("\n[DEBUG EXEC] _sys_pthread_join() at cycle %d\n" |
---|
| 1385 | "P[%d,%d,%d] exit for thread %x in vspace %d\n", |
---|
| 1386 | _get_proctime() , x , y , p , trdid , caller_vspace ); |
---|
| 1387 | #endif |
---|
[709] | 1388 | |
---|
[714] | 1389 | return SYSCALL_OK; |
---|
| 1390 | |
---|
[709] | 1391 | } // end _sys_pthread_join() |
---|
| 1392 | |
---|
| 1393 | |
---|
| 1394 | //////////////////////////////////////// |
---|
| 1395 | int _sys_pthread_kill( pthread_t trdid, |
---|
| 1396 | int signal ) |
---|
| 1397 | { |
---|
| 1398 | // get calling thread vspace |
---|
| 1399 | unsigned int caller_vspace = _get_context_slot( CTX_VSID_ID ); |
---|
| 1400 | |
---|
[714] | 1401 | #if GIET_DEBUG_EXEC |
---|
| 1402 | unsigned int gpid = _get_procid(); |
---|
| 1403 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 1404 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 1405 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 1406 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1407 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
| 1408 | _printf("\n[DEBUG EXEC] _sys_pthread_kill() at cycle %d\n" |
---|
| 1409 | "P[%d,%d,%d] enters for thread %x in vspace %d\n", |
---|
| 1410 | _get_proctime() , x , y , p , trdid , caller_vspace ); |
---|
| 1411 | #endif |
---|
| 1412 | |
---|
| 1413 | |
---|
[709] | 1414 | // get and check target thread indexes from trdid |
---|
| 1415 | unsigned int cx = (trdid>>24) & 0xFF; |
---|
| 1416 | unsigned int cy = (trdid>>16) & 0xFF; |
---|
| 1417 | unsigned int lpid = (trdid>>8 ) & 0xFF; |
---|
| 1418 | unsigned int ltid = (trdid ) & 0xFF; |
---|
| 1419 | |
---|
| 1420 | // get target thread scheduler, vspace and registered trdid |
---|
| 1421 | static_scheduler_t* psched = _schedulers[cx][cy][lpid]; |
---|
| 1422 | unsigned int target_vspace = psched->context[ltid].slot[CTX_VSID_ID]; |
---|
| 1423 | unsigned int registered_trdid = psched->context[ltid].slot[CTX_TRDID_ID]; |
---|
| 1424 | |
---|
| 1425 | // check trdid |
---|
| 1426 | if ( trdid != registered_trdid ) |
---|
| 1427 | { |
---|
| 1428 | _printf("\n[GIET ERROR] in _sys_pthread_kill() : trdid = %x" |
---|
| 1429 | " / registered_trdid = %x\n", trdid , registered_trdid ); |
---|
[714] | 1430 | return SYSCALL_UNCOHERENT_THREAD_CONTEXT; |
---|
[709] | 1431 | } |
---|
| 1432 | |
---|
| 1433 | // check calling thread and target thread in same vspace |
---|
| 1434 | if ( caller_vspace != target_vspace ) |
---|
| 1435 | { |
---|
| 1436 | _printf("\n[GIET ERROR] in _sys_pthread_kill() : not in same vspace\n"); |
---|
[714] | 1437 | return SYSCALL_NOT_IN_SAME_VSPACE; |
---|
[709] | 1438 | } |
---|
| 1439 | |
---|
| 1440 | // register KILL signal in target thread context if required |
---|
| 1441 | if ( signal ) |
---|
| 1442 | { |
---|
| 1443 | _atomic_or( &psched->context[ltid].slot[CTX_SIGS_ID] , SIGS_MASK_KILL ); |
---|
| 1444 | } |
---|
| 1445 | |
---|
[714] | 1446 | #if GIET_DEBUG_EXEC |
---|
| 1447 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
| 1448 | _printf("\n[DEBUG EXEC] _sys_pthread_kill() at cycle %d\n" |
---|
| 1449 | "P[%d,%d,%d] exit for thread %x in vspace %d\n", |
---|
| 1450 | _get_proctime() , x , y , p , trdid , caller_vspace ); |
---|
| 1451 | #endif |
---|
[709] | 1452 | |
---|
[714] | 1453 | return SYSCALL_OK; |
---|
| 1454 | |
---|
[709] | 1455 | } // end _sys_pthread_kill() |
---|
| 1456 | |
---|
| 1457 | |
---|
| 1458 | ///////////////////////////////////// |
---|
| 1459 | int _sys_pthread_exit( void* string ) |
---|
| 1460 | { |
---|
| 1461 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1462 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
| 1463 | |
---|
| 1464 | unsigned int ltid = _get_context_slot(CTX_LTID_ID); |
---|
| 1465 | unsigned int trdid = _get_context_slot(CTX_TRDID_ID); |
---|
| 1466 | unsigned int vsid = _get_context_slot(CTX_VSID_ID); |
---|
| 1467 | |
---|
| 1468 | // print exit message |
---|
[753] | 1469 | if ( string != NULL ) |
---|
[709] | 1470 | { |
---|
[719] | 1471 | _printf("\n[GIET WARNING] Exit thread %x in vspace %s\n" |
---|
| 1472 | " Cause : %s\n\n", |
---|
[717] | 1473 | trdid , vspace[vsid].name , (char*) string ); |
---|
[709] | 1474 | } |
---|
[648] | 1475 | |
---|
[709] | 1476 | // get scheduler pointer for calling thread |
---|
| 1477 | static_scheduler_t* psched = (static_scheduler_t*)_get_sched(); |
---|
[648] | 1478 | |
---|
[709] | 1479 | // register KILL signal in calling thread context (suicid request) |
---|
| 1480 | _atomic_or( &psched->context[ltid].slot[CTX_SIGS_ID] , SIGS_MASK_KILL ); |
---|
| 1481 | |
---|
| 1482 | // deschedule calling thread |
---|
| 1483 | unsigned int save_sr; |
---|
| 1484 | _it_disable( &save_sr ); |
---|
| 1485 | |
---|
| 1486 | _ctx_switch(); |
---|
| 1487 | |
---|
[714] | 1488 | return SYSCALL_OK; |
---|
[709] | 1489 | |
---|
| 1490 | } // end _sys_pthread_exit() |
---|
| 1491 | |
---|
| 1492 | //////////////////////// |
---|
| 1493 | int _sys_pthread_yield() |
---|
| 1494 | { |
---|
| 1495 | unsigned int save_sr; |
---|
| 1496 | |
---|
| 1497 | _it_disable( &save_sr ); |
---|
| 1498 | _ctx_switch(); |
---|
| 1499 | _it_restore( &save_sr ); |
---|
| 1500 | |
---|
[714] | 1501 | return SYSCALL_OK; |
---|
[709] | 1502 | } |
---|
| 1503 | |
---|
| 1504 | ////////////////////////////////////////////////// |
---|
| 1505 | int _sys_pthread_control( unsigned int command, |
---|
| 1506 | char* vspace_name, |
---|
| 1507 | char* thread_name ) |
---|
| 1508 | { |
---|
| 1509 | |
---|
| 1510 | #if GIET_DEBUG_EXEC |
---|
[714] | 1511 | unsigned int gpid = _get_procid(); |
---|
| 1512 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 1513 | unsigned int p = gpid & ((1<<P_WIDTH)-1); |
---|
| 1514 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 1515 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
[709] | 1516 | if ( _get_proctime() > GIET_DEBUG_EXEC ) |
---|
[714] | 1517 | _printf("\n[DEBUG EXEC] _sys_pthread_control() at cycle %d\n" |
---|
| 1518 | "P[%d,%d,%d] enter for vspace %s / thread %s / command = %d\n", |
---|
| 1519 | _get_proctime() , x , y , p , vspace_name, thread_name, command ); |
---|
[709] | 1520 | #endif |
---|
| 1521 | |
---|
| 1522 | // get pointers in mapping |
---|
| 1523 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1524 | mapping_thread_t* thread = _get_thread_base(header); |
---|
| 1525 | mapping_vspace_t* vspace = _get_vspace_base(header); |
---|
| 1526 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 1527 | |
---|
| 1528 | unsigned int found; |
---|
| 1529 | |
---|
| 1530 | // search vspace name to get vspace index: vsid |
---|
| 1531 | found = 0; |
---|
| 1532 | unsigned int vsid; |
---|
| 1533 | for( vsid = 0 ; vsid < header->vspaces ; vsid++ ) |
---|
| 1534 | { |
---|
| 1535 | if ( _strcmp( vspace[vsid].name, vspace_name ) == 0 ) |
---|
| 1536 | { |
---|
| 1537 | found = 1; |
---|
| 1538 | break; |
---|
| 1539 | } |
---|
| 1540 | } |
---|
| 1541 | |
---|
[714] | 1542 | if ( found == 0 ) return SYSCALL_VSPACE_NOT_FOUND; |
---|
[709] | 1543 | |
---|
| 1544 | // search thread name in vspace to get thread index: tid |
---|
| 1545 | found = 0; |
---|
| 1546 | unsigned int tid; |
---|
| 1547 | unsigned int min = vspace[vsid].thread_offset; |
---|
| 1548 | unsigned int max = min + vspace[vsid].threads; |
---|
| 1549 | for( tid = min ; tid < max ; tid++ ) |
---|
| 1550 | { |
---|
| 1551 | if ( _strcmp( thread[tid].name, thread_name ) == 0 ) |
---|
| 1552 | { |
---|
| 1553 | found = 1; |
---|
| 1554 | break; |
---|
| 1555 | } |
---|
| 1556 | } |
---|
| 1557 | |
---|
[714] | 1558 | if ( found == 0 ) return SYSCALL_THREAD_NOT_FOUND; |
---|
[709] | 1559 | |
---|
[714] | 1560 | // get target thread coordinates |
---|
[709] | 1561 | unsigned int cid = thread[tid].clusterid; |
---|
[714] | 1562 | unsigned int cx = cluster[cid].x; |
---|
| 1563 | unsigned int cy = cluster[cid].y; |
---|
| 1564 | unsigned int cp = thread[tid].proclocid; |
---|
[709] | 1565 | unsigned int ltid = thread[tid].ltid; |
---|
| 1566 | |
---|
[714] | 1567 | // get target thread scheduler |
---|
| 1568 | static_scheduler_t* psched = _schedulers[cx][cy][cp]; |
---|
[709] | 1569 | |
---|
| 1570 | // check trdid and vsid |
---|
[714] | 1571 | unsigned int trdid = cx<<24 | cy<<16 | cp<<8 | ltid; |
---|
[709] | 1572 | if ( (psched->context[ltid].slot[CTX_TRDID_ID] != trdid) || |
---|
| 1573 | (psched->context[ltid].slot[CTX_VSID_ID] != vsid) ) |
---|
[714] | 1574 | { |
---|
| 1575 | return SYSCALL_UNCOHERENT_THREAD_CONTEXT; |
---|
| 1576 | } |
---|
[709] | 1577 | |
---|
| 1578 | // execute command |
---|
| 1579 | if ( command == THREAD_CMD_PAUSE ) |
---|
| 1580 | { |
---|
| 1581 | _atomic_or ( &psched->context[ltid].slot[CTX_NORUN_ID], NORUN_MASK_THREAD ); |
---|
[714] | 1582 | return SYSCALL_OK; |
---|
[709] | 1583 | } |
---|
| 1584 | else if ( command == THREAD_CMD_RESUME ) |
---|
| 1585 | { |
---|
| 1586 | _atomic_and( &psched->context[ltid].slot[CTX_NORUN_ID], ~NORUN_MASK_THREAD ); |
---|
[714] | 1587 | return SYSCALL_OK; |
---|
[709] | 1588 | } |
---|
| 1589 | else if ( command == THREAD_CMD_CONTEXT ) |
---|
| 1590 | { |
---|
| 1591 | _user_printf( " - CTX_TRDID = %x\n" |
---|
| 1592 | " - CTX_VSID = %x\n" |
---|
| 1593 | " - CTX_EPC = %x\n" |
---|
| 1594 | " - CTX_PTAB = %x\n" |
---|
| 1595 | " - CTX_PTPR = %x\n" |
---|
| 1596 | " - CTX_SR = %x\n" |
---|
| 1597 | " - CTX_RA = %x\n" |
---|
| 1598 | " - CTX_SP = %x\n" |
---|
| 1599 | " - CTX_ENTRY = %x\n" |
---|
| 1600 | " - CTX_NORUN = %x\n" |
---|
| 1601 | " - CTX_SIGS = %x\n" |
---|
| 1602 | " - CTX_LOCKS = %x\n" |
---|
| 1603 | " - CTX_TTY = %x\n" |
---|
| 1604 | " - CTX_NIC_RX = %x\n" |
---|
| 1605 | " - CTX_NIC_TX = %x\n" |
---|
| 1606 | " - CTX_CMA_RX = %x\n" |
---|
| 1607 | " - CTX_CMA_TX = %x\n" |
---|
| 1608 | " - CTX_CMA_FB = %x\n", |
---|
| 1609 | psched->context[ltid].slot[CTX_TRDID_ID], |
---|
| 1610 | psched->context[ltid].slot[CTX_VSID_ID], |
---|
| 1611 | psched->context[ltid].slot[CTX_EPC_ID], |
---|
| 1612 | psched->context[ltid].slot[CTX_PTAB_ID], |
---|
| 1613 | psched->context[ltid].slot[CTX_PTPR_ID], |
---|
| 1614 | psched->context[ltid].slot[CTX_SR_ID], |
---|
| 1615 | psched->context[ltid].slot[CTX_RA_ID], |
---|
| 1616 | psched->context[ltid].slot[CTX_SP_ID], |
---|
| 1617 | psched->context[ltid].slot[CTX_ENTRY_ID], |
---|
| 1618 | psched->context[ltid].slot[CTX_NORUN_ID], |
---|
| 1619 | psched->context[ltid].slot[CTX_SIGS_ID], |
---|
| 1620 | psched->context[ltid].slot[CTX_LOCKS_ID], |
---|
| 1621 | psched->context[ltid].slot[CTX_TTY_ID], |
---|
| 1622 | psched->context[ltid].slot[CTX_NIC_RX_ID], |
---|
| 1623 | psched->context[ltid].slot[CTX_NIC_TX_ID], |
---|
| 1624 | psched->context[ltid].slot[CTX_CMA_RX_ID], |
---|
| 1625 | psched->context[ltid].slot[CTX_CMA_TX_ID], |
---|
| 1626 | psched->context[ltid].slot[CTX_CMA_FB_ID] ); |
---|
[714] | 1627 | return SYSCALL_OK; |
---|
[709] | 1628 | } |
---|
| 1629 | else |
---|
| 1630 | { |
---|
[714] | 1631 | return SYSCALL_ILLEGAL_THREAD_COMMAND_TYPE; |
---|
[709] | 1632 | } |
---|
| 1633 | |
---|
| 1634 | } // end _sys_pthread_control() |
---|
| 1635 | |
---|
| 1636 | |
---|
| 1637 | |
---|
| 1638 | |
---|
[648] | 1639 | ////////////////////////////////////////////////////////////////////////////// |
---|
[519] | 1640 | // Coprocessors related syscall handlers |
---|
| 1641 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 1642 | |
---|
| 1643 | ////////////////////////////////////////////////// |
---|
[733] | 1644 | int _sys_coproc_alloc( unsigned int cluster_xy, |
---|
| 1645 | unsigned int coproc_type, |
---|
| 1646 | unsigned int* return_info ) |
---|
[519] | 1647 | { |
---|
| 1648 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1649 | mapping_cluster_t * cluster = _get_cluster_base(header); |
---|
| 1650 | mapping_periph_t * periph = _get_periph_base(header); |
---|
| 1651 | |
---|
[733] | 1652 | // compute cluster coordinates and cluster index in mapping |
---|
| 1653 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1654 | unsigned int x = (cluster_xy>>Y_WIDTH) & ((1<<X_WIDTH)-1); |
---|
[556] | 1655 | unsigned int cluster_id = x * Y_SIZE + y; |
---|
[519] | 1656 | |
---|
| 1657 | // search coprocessor in cluster |
---|
| 1658 | mapping_periph_t* found = NULL; |
---|
| 1659 | unsigned int min = cluster[cluster_id].periph_offset; |
---|
| 1660 | unsigned int max = min + cluster[cluster_id].periphs; |
---|
| 1661 | unsigned int periph_id; |
---|
| 1662 | for ( periph_id = min ; periph_id < max ; periph_id++ ) |
---|
| 1663 | { |
---|
| 1664 | if ( (periph[periph_id].type == PERIPH_TYPE_MWR) && |
---|
| 1665 | (periph[periph_id].subtype == coproc_type) ) |
---|
| 1666 | { |
---|
| 1667 | found = &periph[periph_id]; |
---|
| 1668 | break; |
---|
| 1669 | } |
---|
| 1670 | } |
---|
| 1671 | |
---|
| 1672 | if ( found != NULL ) |
---|
| 1673 | { |
---|
[733] | 1674 | // get the lock |
---|
[519] | 1675 | _simple_lock_acquire( &_coproc_lock[cluster_id] ); |
---|
[556] | 1676 | |
---|
| 1677 | // register coproc characteristics in kernel arrays |
---|
| 1678 | _coproc_type[cluster_id] = coproc_type; |
---|
| 1679 | _coproc_info[cluster_id] = (found->arg0 & 0xFF) | |
---|
| 1680 | (found->arg1 & 0xFF)<<8 | |
---|
| 1681 | (found->arg2 & 0xFF)<<16 | |
---|
| 1682 | (found->arg3 & 0xFF)<<24 ; |
---|
| 1683 | |
---|
[519] | 1684 | // returns coprocessor info |
---|
[733] | 1685 | *return_info = _coproc_info[cluster_id]; |
---|
[519] | 1686 | |
---|
| 1687 | #if GIET_DEBUG_COPROC |
---|
[714] | 1688 | _printf("\n[DEBUG COPROC] _sys_coproc_alloc() at cycle %d\n" |
---|
[733] | 1689 | "type = %d in cluster[%d,%d] / coproc_info = %x\n", |
---|
| 1690 | _get_proctime() , coproc_type, x , y , *return_info ); |
---|
[519] | 1691 | #endif |
---|
[714] | 1692 | return SYSCALL_OK; |
---|
[519] | 1693 | } |
---|
| 1694 | else |
---|
| 1695 | { |
---|
[714] | 1696 | _printf("\n[GIET_ERROR] in _sys_coproc_alloc(): " |
---|
| 1697 | "no coprocessor with type %d in cluster[%d,%d]\n", |
---|
[519] | 1698 | coproc_type , x , y ); |
---|
[714] | 1699 | |
---|
| 1700 | return SYSCALL_COPROCESSOR_NOT_FOUND; |
---|
[519] | 1701 | } |
---|
| 1702 | } // end _sys_coproc_alloc() |
---|
| 1703 | |
---|
[556] | 1704 | //////////////////////////////////////////////////////// |
---|
[733] | 1705 | int _sys_coproc_release( unsigned int cluster_xy, |
---|
| 1706 | unsigned int coproc_type ) |
---|
[519] | 1707 | { |
---|
[733] | 1708 | // compute cluster coordinates and cluster index |
---|
| 1709 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1710 | unsigned int x = (cluster_xy>>Y_WIDTH) & ((1<<X_WIDTH)-1); |
---|
| 1711 | unsigned int cluster_id = x * Y_SIZE + y; |
---|
[714] | 1712 | |
---|
[733] | 1713 | // check coprocessor type |
---|
| 1714 | if ( _coproc_type[cluster_id] != coproc_type ) |
---|
[519] | 1715 | { |
---|
[556] | 1716 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
---|
[733] | 1717 | "no coprocessor of type %d allocated in cluster[%d,%d]\n", |
---|
| 1718 | coproc_type, x , y ); |
---|
[714] | 1719 | |
---|
| 1720 | return SYSCALL_COPROCESSOR_NON_ALLOCATED; |
---|
[519] | 1721 | } |
---|
| 1722 | |
---|
[556] | 1723 | unsigned int info = _coproc_info[cluster_id]; |
---|
| 1724 | unsigned int nb_to = info & 0xFF; |
---|
| 1725 | unsigned int nb_from = (info>>8) & 0xFF; |
---|
| 1726 | unsigned int channel; |
---|
[519] | 1727 | |
---|
[556] | 1728 | // stops coprocessor and communication channels |
---|
[733] | 1729 | _mwr_set_coproc_register( cluster_xy , 0 , 0 ); |
---|
[556] | 1730 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
---|
| 1731 | { |
---|
| 1732 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 0 ); |
---|
| 1733 | } |
---|
[519] | 1734 | |
---|
[556] | 1735 | // release coprocessor lock |
---|
| 1736 | _simple_lock_release( &_coproc_lock[cluster_id] ); |
---|
| 1737 | |
---|
[519] | 1738 | #if GIET_DEBUG_COPROC |
---|
[714] | 1739 | _printf("\n[DEBUG COPROC] _sys_coproc_release() at cycle %d\n" |
---|
[733] | 1740 | "type = %d in cluster[%d,%d]\n", |
---|
| 1741 | _get_proctime() , coproc_type , x , y ); |
---|
[519] | 1742 | #endif |
---|
| 1743 | |
---|
[714] | 1744 | return SYSCALL_OK; |
---|
[519] | 1745 | } // end _sys_coproc_release() |
---|
| 1746 | |
---|
[733] | 1747 | //////////////////////////////////////////////////////////////// |
---|
| 1748 | int _sys_coproc_channel_init( unsigned int cluster_xy, |
---|
| 1749 | unsigned int coproc_type, |
---|
| 1750 | unsigned int channel, |
---|
[519] | 1751 | giet_coproc_channel_t* desc ) |
---|
| 1752 | { |
---|
[733] | 1753 | // compute cluster coordinates and cluster index |
---|
| 1754 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1755 | unsigned int x = (cluster_xy>>Y_WIDTH) & ((1<<X_WIDTH)-1); |
---|
| 1756 | unsigned int cluster_id = x * Y_SIZE + y; |
---|
[714] | 1757 | |
---|
[733] | 1758 | // check coprocessor type |
---|
| 1759 | if ( _coproc_type[cluster_id] != coproc_type ) |
---|
[519] | 1760 | { |
---|
[733] | 1761 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
---|
| 1762 | "no coprocessor of type %d allocated in cluster[%d,%d]\n", |
---|
| 1763 | coproc_type, x , y ); |
---|
[714] | 1764 | |
---|
| 1765 | return SYSCALL_COPROCESSOR_NON_ALLOCATED; |
---|
[519] | 1766 | } |
---|
| 1767 | |
---|
| 1768 | // check channel mode |
---|
| 1769 | unsigned mode = desc->channel_mode; |
---|
| 1770 | if ( (mode != MODE_MWMR) && |
---|
| 1771 | (mode != MODE_DMA_IRQ) && |
---|
| 1772 | (mode != MODE_DMA_NO_IRQ) ) |
---|
| 1773 | { |
---|
[556] | 1774 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
---|
[714] | 1775 | "illegal mode\n"); |
---|
| 1776 | |
---|
| 1777 | return SYSCALL_COPROCESSOR_ILLEGAL_MODE; |
---|
[519] | 1778 | } |
---|
| 1779 | |
---|
| 1780 | // get memory buffer size |
---|
| 1781 | unsigned int size = desc->buffer_size; |
---|
| 1782 | |
---|
[528] | 1783 | // physical addresses |
---|
[709] | 1784 | unsigned long long buffer_paddr; |
---|
[519] | 1785 | unsigned int buffer_lsb; |
---|
| 1786 | unsigned int buffer_msb; |
---|
[733] | 1787 | unsigned long long status_paddr = 0; |
---|
| 1788 | unsigned int status_lsb; |
---|
| 1789 | unsigned int status_msb; |
---|
[709] | 1790 | unsigned long long lock_paddr = 0; |
---|
[519] | 1791 | unsigned int lock_lsb; |
---|
| 1792 | unsigned int lock_msb; |
---|
| 1793 | |
---|
[528] | 1794 | unsigned int flags; // unused |
---|
| 1795 | |
---|
[519] | 1796 | // compute memory buffer physical address |
---|
[528] | 1797 | buffer_paddr = _v2p_translate( desc->buffer_vaddr , &flags ); |
---|
| 1798 | buffer_lsb = (unsigned int)buffer_paddr; |
---|
| 1799 | buffer_msb = (unsigned int)(buffer_paddr>>32); |
---|
[519] | 1800 | |
---|
| 1801 | // call MWMR_DMA driver |
---|
[556] | 1802 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MODE, mode ); |
---|
| 1803 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_SIZE, size ); |
---|
| 1804 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_LSB, buffer_lsb ); |
---|
| 1805 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_BUFFER_MSB, buffer_msb ); |
---|
[519] | 1806 | |
---|
| 1807 | if ( mode == MODE_MWMR ) |
---|
| 1808 | { |
---|
[528] | 1809 | // compute MWMR descriptor physical address |
---|
[733] | 1810 | status_paddr = _v2p_translate( desc->status_vaddr , &flags ); |
---|
| 1811 | status_lsb = (unsigned int)status_paddr; |
---|
| 1812 | status_msb = (unsigned int)(status_paddr>>32); |
---|
[519] | 1813 | |
---|
[528] | 1814 | // call MWMR_DMA driver |
---|
[733] | 1815 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_LSB, status_lsb ); |
---|
| 1816 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_MWMR_MSB, status_msb ); |
---|
[528] | 1817 | |
---|
| 1818 | // compute lock physical address |
---|
| 1819 | lock_paddr = _v2p_translate( desc->lock_vaddr , &flags ); |
---|
[519] | 1820 | lock_lsb = (unsigned int)lock_paddr; |
---|
| 1821 | lock_msb = (unsigned int)(lock_paddr>>32); |
---|
| 1822 | |
---|
| 1823 | // call MWMR_DMA driver |
---|
[556] | 1824 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_LSB, lock_lsb ); |
---|
| 1825 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_LOCK_MSB, lock_msb ); |
---|
[519] | 1826 | } |
---|
| 1827 | |
---|
| 1828 | #if GIET_DEBUG_COPROC |
---|
[714] | 1829 | _printf("\n[DEBUG COPROC] _sys_coproc_channel_init() at cycle %d\n" |
---|
| 1830 | "cluster[%d,%d] / channel = %d / mode = %d / buffer_size = %d\n" |
---|
[733] | 1831 | "buffer_vaddr = %x / status_vaddr = %x / lock_vaddr = %x\n" |
---|
| 1832 | "buffer_paddr = %l / status_paddr = %l / lock_paddr = %l\n", |
---|
[714] | 1833 | _get_proctime() , x , y , channel , mode , size , |
---|
[733] | 1834 | desc->buffer_vaddr, desc->status_vaddr, desc->lock_vaddr, |
---|
| 1835 | buffer_paddr, status_paddr, lock_paddr ); |
---|
[519] | 1836 | #endif |
---|
| 1837 | |
---|
[714] | 1838 | return SYSCALL_OK; |
---|
[519] | 1839 | } // end _sys_coproc_channel_init() |
---|
| 1840 | |
---|
[733] | 1841 | ////////////////////////////////////////////// |
---|
| 1842 | int _sys_coproc_run( unsigned int cluster_xy, |
---|
| 1843 | unsigned int coproc_type ) |
---|
[519] | 1844 | { |
---|
[733] | 1845 | // compute cluster coordinates and cluster index |
---|
| 1846 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1847 | unsigned int x = (cluster_xy>>Y_WIDTH) & ((1<<X_WIDTH)-1); |
---|
| 1848 | unsigned int cluster_id = x * Y_SIZE + y; |
---|
[714] | 1849 | |
---|
[733] | 1850 | // check coprocessor type |
---|
| 1851 | if ( _coproc_type[cluster_id] != coproc_type ) |
---|
[519] | 1852 | { |
---|
[733] | 1853 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
---|
| 1854 | "no coprocessor of type %d allocated in cluster[%d,%d]\n", |
---|
| 1855 | coproc_type, x , y ); |
---|
[714] | 1856 | |
---|
| 1857 | return SYSCALL_COPROCESSOR_NON_ALLOCATED; |
---|
[519] | 1858 | } |
---|
| 1859 | |
---|
[556] | 1860 | unsigned int info = _coproc_info[cluster_id]; |
---|
| 1861 | unsigned int nb_to = info & 0xFF; |
---|
| 1862 | unsigned int nb_from = (info>>8) & 0xFF; |
---|
| 1863 | unsigned int mode = 0xFFFFFFFF; |
---|
| 1864 | unsigned int channel; |
---|
[519] | 1865 | |
---|
[733] | 1866 | // check channels modes, and register coprocessor running mode |
---|
[556] | 1867 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
---|
| 1868 | { |
---|
| 1869 | unsigned int temp; |
---|
| 1870 | temp = _mwr_get_channel_register( cluster_xy , channel , MWR_CHANNEL_MODE ); |
---|
[519] | 1871 | |
---|
[556] | 1872 | if ( mode == 0xFFFFFFFF ) |
---|
| 1873 | { |
---|
| 1874 | mode = temp; |
---|
| 1875 | } |
---|
| 1876 | else if ( temp != mode ) |
---|
| 1877 | { |
---|
[714] | 1878 | _printf("\n[GIET_ERROR] in _sys_coproc_run(): " |
---|
[733] | 1879 | "channels don't have same mode in coprocessor[%d,%d]\n", x , y ); |
---|
[714] | 1880 | |
---|
| 1881 | return SYSCALL_COPROCESSOR_ILLEGAL_MODE; |
---|
[556] | 1882 | } |
---|
| 1883 | } |
---|
| 1884 | _coproc_mode[cluster_id] = mode; |
---|
[519] | 1885 | |
---|
[556] | 1886 | // start all communication channels |
---|
| 1887 | for ( channel = 0 ; channel < (nb_from + nb_to) ; channel++ ) |
---|
| 1888 | { |
---|
| 1889 | _mwr_set_channel_register( cluster_xy , channel , MWR_CHANNEL_RUNNING , 1 ); |
---|
| 1890 | } |
---|
[519] | 1891 | |
---|
[556] | 1892 | ////////////////////////////////////////////////////////////////////////// |
---|
| 1893 | if ( (mode == MODE_MWMR) || (mode == MODE_DMA_NO_IRQ) ) // no descheduling |
---|
[519] | 1894 | { |
---|
[556] | 1895 | // start coprocessor |
---|
[733] | 1896 | _mwr_set_coproc_register( cluster_xy , 0 , 1 ); |
---|
[556] | 1897 | |
---|
| 1898 | #if GIET_DEBUG_COPROC |
---|
| 1899 | if ( mode == MODE_MWMR ) |
---|
[714] | 1900 | _printf("\n[DEBUG COPROC] _sys_coproc_run() at cycle %d\n" |
---|
[733] | 1901 | "type = %d / cluster[%d,%d] / MODE_MWMR\n", |
---|
| 1902 | _get_proctime() , coproc_type , x , y ); |
---|
[556] | 1903 | else |
---|
[714] | 1904 | _printf("\n[DEBUG COPROC] _sys_coproc_run() at cycle %d\n" |
---|
[733] | 1905 | "type = %d / cluster[%d,%d] / MODE_DMA_NO_IRQ\n", |
---|
| 1906 | _get_proctime() , coproc_type , x , y ); |
---|
[556] | 1907 | #endif |
---|
| 1908 | |
---|
[714] | 1909 | return SYSCALL_OK; |
---|
[519] | 1910 | } |
---|
[556] | 1911 | /////////////////////////////////////////////////////////////////////////// |
---|
| 1912 | else // mode == MODE_DMA_IRQ => descheduling |
---|
| 1913 | { |
---|
[733] | 1914 | // register calling thread trdid |
---|
| 1915 | unsigned int trdid = _get_thread_trdid(); |
---|
| 1916 | _coproc_trdid[cluster_id] = trdid; |
---|
[519] | 1917 | |
---|
[556] | 1918 | // enters critical section |
---|
| 1919 | unsigned int save_sr; |
---|
| 1920 | _it_disable( &save_sr ); |
---|
| 1921 | |
---|
[629] | 1922 | // set NORUN_MASK_COPROC bit |
---|
[733] | 1923 | static_scheduler_t* psched = _get_sched(); |
---|
| 1924 | unsigned int ltid = _get_thread_ltid(); |
---|
[709] | 1925 | unsigned int* ptr = &psched->context[ltid].slot[CTX_NORUN_ID]; |
---|
[629] | 1926 | _atomic_or( ptr , NORUN_MASK_COPROC ); |
---|
[556] | 1927 | |
---|
| 1928 | // start coprocessor |
---|
[733] | 1929 | _mwr_set_coproc_register( cluster_xy , 0 , 1 ); |
---|
[556] | 1930 | |
---|
[519] | 1931 | #if GIET_DEBUG_COPROC |
---|
[714] | 1932 | _printf("\n[DEBUG COPROC] _sys_coproc_run() at cycle %d\n" |
---|
[733] | 1933 | "thread %x starts coprocessor / type = %d / cluster[%d,%d] / MODE_DMA_IRQ\n", |
---|
| 1934 | _get_proctime() , trdid , coproc_type , x , y ); |
---|
[519] | 1935 | #endif |
---|
| 1936 | |
---|
[709] | 1937 | // deschedule thread |
---|
[556] | 1938 | _ctx_switch(); |
---|
[519] | 1939 | |
---|
[556] | 1940 | #if GIET_DEBUG_COPROC |
---|
[714] | 1941 | _printf("\n[DEBUG COPROC] _sys_coproc_run() at cycle %d\n" |
---|
| 1942 | "thread %x resume after coprocessor[%d,%d] completion\n", |
---|
[733] | 1943 | _get_proctime() , trdid , x , y ); |
---|
[556] | 1944 | #endif |
---|
| 1945 | |
---|
| 1946 | // restore SR |
---|
| 1947 | _it_restore( &save_sr ); |
---|
| 1948 | |
---|
| 1949 | // return error computed by mwr_isr() |
---|
| 1950 | return _coproc_error[cluster_id]; |
---|
| 1951 | } |
---|
| 1952 | } // end _sys_coproc_run() |
---|
| 1953 | |
---|
[733] | 1954 | //////////////////////////////////////////////////// |
---|
| 1955 | int _sys_coproc_completed( unsigned int cluster_xy, |
---|
| 1956 | unsigned int coproc_type ) |
---|
[519] | 1957 | { |
---|
[733] | 1958 | // compute cluster coordinates and cluster index |
---|
| 1959 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 1960 | unsigned int x = (cluster_xy>>Y_WIDTH) & ((1<<X_WIDTH)-1); |
---|
| 1961 | unsigned int cluster_id = x * Y_SIZE + y; |
---|
[714] | 1962 | |
---|
[733] | 1963 | // check coprocessor type |
---|
| 1964 | if ( _coproc_type[cluster_id] != coproc_type ) |
---|
[519] | 1965 | { |
---|
[733] | 1966 | _printf("\n[GIET_ERROR] in _sys_coproc_release(): " |
---|
| 1967 | "no coprocessor of type %d allocated in cluster[%d,%d]\n", |
---|
| 1968 | coproc_type, x , y ); |
---|
[714] | 1969 | |
---|
| 1970 | return SYSCALL_COPROCESSOR_NON_ALLOCATED; |
---|
[519] | 1971 | } |
---|
| 1972 | |
---|
[733] | 1973 | unsigned int mode = _coproc_mode[cluster_id]; |
---|
[519] | 1974 | |
---|
[556] | 1975 | // analyse possible errors |
---|
| 1976 | if ( mode == MODE_DMA_NO_IRQ ) |
---|
| 1977 | { |
---|
| 1978 | unsigned int info = _coproc_info[cluster_id]; |
---|
| 1979 | unsigned int nb_to = info & 0xFF; |
---|
| 1980 | unsigned int nb_from = (info>>8) & 0xFF; |
---|
| 1981 | unsigned int error = 0; |
---|
| 1982 | unsigned int channel; |
---|
| 1983 | unsigned int status; |
---|
| 1984 | |
---|
[714] | 1985 | // get status for all channels, and signal reported errors |
---|
[556] | 1986 | for ( channel = 0 ; channel < (nb_to +nb_from) ; channel++ ) |
---|
| 1987 | { |
---|
| 1988 | do |
---|
| 1989 | { |
---|
[714] | 1990 | status = _mwr_get_channel_register( cluster_xy, channel, |
---|
| 1991 | MWR_CHANNEL_STATUS ); |
---|
[556] | 1992 | if ( status == MWR_CHANNEL_ERROR_DATA ) |
---|
| 1993 | { |
---|
[714] | 1994 | _printf("\n[GIET_ERROR] in _sys_coproc_completed(): " |
---|
| 1995 | "channel %d / DATA_ERROR\n", channel ); |
---|
[556] | 1996 | error = 1; |
---|
| 1997 | } |
---|
| 1998 | else if ( status == MWR_CHANNEL_ERROR_LOCK ) |
---|
| 1999 | { |
---|
| 2000 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
| 2001 | " / channel %d / LOCK_ERROR\n", channel ); |
---|
| 2002 | error = 1; |
---|
| 2003 | } |
---|
| 2004 | else if ( status == MWR_CHANNEL_ERROR_DESC ) |
---|
| 2005 | { |
---|
| 2006 | _printf("\n[GIET_ERROR] in _sys_coproc_completed()" |
---|
| 2007 | " / channel %d / DESC_ERROR\n", channel ); |
---|
| 2008 | error = 1; |
---|
| 2009 | } |
---|
[714] | 2010 | } |
---|
| 2011 | while ( status == MWR_CHANNEL_BUSY ); |
---|
[556] | 2012 | |
---|
| 2013 | // reset channel |
---|
[733] | 2014 | _mwr_set_channel_register( cluster_xy, channel, MWR_CHANNEL_RUNNING , 0 ); |
---|
[556] | 2015 | |
---|
| 2016 | } // end for channels |
---|
| 2017 | |
---|
[714] | 2018 | if ( error ) |
---|
| 2019 | { |
---|
| 2020 | return SYSCALL_COPROCESSOR_ILLEGAL_MODE; |
---|
| 2021 | } |
---|
| 2022 | else |
---|
| 2023 | { |
---|
| 2024 | |
---|
[519] | 2025 | #if GIET_DEBUG_COPROC |
---|
[714] | 2026 | _printf("\n[DEBUG COPROC] _sys_coproc_completed() at cycle %d\n" |
---|
[733] | 2027 | "coprocessor type = %d / cluster[%d,%d] completes operation for thread %d\n", |
---|
| 2028 | _get_proctime() , coproc_type , x , y , _get_thread_trdid() ); |
---|
[519] | 2029 | #endif |
---|
[714] | 2030 | return SYSCALL_OK; |
---|
| 2031 | } |
---|
[556] | 2032 | } |
---|
| 2033 | else // mode == MODE_MWMR or MODE_DMA_IRQ |
---|
| 2034 | { |
---|
[714] | 2035 | _printf("\n[GIET ERROR] in sys_coproc_completed(): " |
---|
[733] | 2036 | "coprocessor[%d,%d] is not running in MODE_DMA_NO_IRQ\n", x , y ); |
---|
[714] | 2037 | |
---|
| 2038 | return SYSCALL_COPROCESSOR_ILLEGAL_MODE; |
---|
[556] | 2039 | } |
---|
[519] | 2040 | } // end _sys_coproc_completed() |
---|
| 2041 | |
---|
| 2042 | |
---|
| 2043 | ////////////////////////////////////////////////////////////////////////////// |
---|
[440] | 2044 | // TTY related syscall handlers |
---|
[258] | 2045 | ////////////////////////////////////////////////////////////////////////////// |
---|
[440] | 2046 | |
---|
[670] | 2047 | ///////////////////////////////////////// |
---|
| 2048 | int _sys_tty_alloc( unsigned int shared ) |
---|
[258] | 2049 | { |
---|
[754] | 2050 | unsigned int channel = 0; // allocated TTY channel |
---|
[440] | 2051 | |
---|
[754] | 2052 | // get vsid for the calling thread |
---|
[709] | 2053 | unsigned int vsid = _get_context_slot( CTX_VSID_ID ); |
---|
| 2054 | |
---|
| 2055 | mapping_header_t *header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 2056 | mapping_vspace_t *vspace = _get_vspace_base(header); |
---|
| 2057 | mapping_thread_t *thread = _get_thread_base(header); |
---|
| 2058 | |
---|
| 2059 | // compute number of users |
---|
| 2060 | unsigned int users; |
---|
| 2061 | if ( shared ) users = vspace[vsid].threads; |
---|
| 2062 | else users = 1; |
---|
| 2063 | |
---|
[754] | 2064 | #if NB_TTY_CHANNELS > 1 |
---|
| 2065 | // get trdid for the calling thread |
---|
| 2066 | unsigned int trdid = _get_thread_trdid(); |
---|
| 2067 | |
---|
[709] | 2068 | // get a TTY channel |
---|
[698] | 2069 | for ( channel = 0 ; channel < NB_TTY_CHANNELS ; channel++ ) |
---|
| 2070 | { |
---|
[709] | 2071 | unsigned int* palloc = &_tty_channel_alloc[channel]; |
---|
| 2072 | |
---|
| 2073 | if ( _atomic_test_and_set( palloc , users ) == 0 ) break; |
---|
[698] | 2074 | } |
---|
[754] | 2075 | if ( ( channel >= NB_TTY_CHANNELS ) ) |
---|
[440] | 2076 | { |
---|
[709] | 2077 | _printf("\n[GIET_ERROR] in _sys_tty_alloc() : " |
---|
| 2078 | "no TTY channel available for thread %x\n", trdid ); |
---|
[714] | 2079 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[440] | 2080 | } |
---|
[547] | 2081 | |
---|
[709] | 2082 | // initialise allocated TTY channel |
---|
| 2083 | _tty_init( channel ); |
---|
[648] | 2084 | |
---|
[547] | 2085 | // allocate a WTI mailbox to the calling proc if external IRQ |
---|
[709] | 2086 | unsigned int wti_id; |
---|
| 2087 | if ( USE_PIC ) _ext_irq_alloc( ISR_TTY_RX , channel , &wti_id ); |
---|
| 2088 | |
---|
| 2089 | // register wti_id and coordinates for processor receiving WTI |
---|
| 2090 | unsigned int procid = _get_procid(); |
---|
| 2091 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
---|
| 2092 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 2093 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
---|
| 2094 | _tty_channel_wti[channel] = x<<24 | y<<16 | p<<8 | wti_id; |
---|
[754] | 2095 | |
---|
| 2096 | #else |
---|
| 2097 | |
---|
| 2098 | unsigned int* palloc = &_tty_channel_alloc[0]; |
---|
| 2099 | _atomic_increment( palloc, users ); |
---|
| 2100 | |
---|
| 2101 | #endif |
---|
[547] | 2102 | |
---|
[670] | 2103 | // update CTX_TTY_ID |
---|
[709] | 2104 | if ( shared ) // for all threads in vspace |
---|
[670] | 2105 | { |
---|
[709] | 2106 | // scan threads in vspace |
---|
| 2107 | unsigned int tid; |
---|
| 2108 | for (tid = vspace[vsid].thread_offset; |
---|
| 2109 | tid < (vspace[vsid].thread_offset + vspace[vsid].threads); |
---|
| 2110 | tid++) |
---|
[670] | 2111 | { |
---|
| 2112 | unsigned int y_size = header->y_size; |
---|
[709] | 2113 | unsigned int cid = thread[tid].clusterid; |
---|
[670] | 2114 | unsigned int x = cid / y_size; |
---|
| 2115 | unsigned int y = cid % y_size; |
---|
[709] | 2116 | unsigned int p = thread[tid].proclocid; |
---|
| 2117 | unsigned int ltid = thread[tid].ltid; |
---|
[670] | 2118 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
[698] | 2119 | |
---|
[709] | 2120 | psched->context[ltid].slot[CTX_TTY_ID] = channel; |
---|
[670] | 2121 | } |
---|
| 2122 | } |
---|
[709] | 2123 | else // for calling thread only |
---|
[670] | 2124 | { |
---|
| 2125 | _set_context_slot( CTX_TTY_ID, channel ); |
---|
| 2126 | } |
---|
| 2127 | |
---|
[714] | 2128 | return SYSCALL_OK; |
---|
[709] | 2129 | } // end _sys_tty_alloc() |
---|
[258] | 2130 | |
---|
[709] | 2131 | ////////////////////// |
---|
[714] | 2132 | int _sys_tty_release() // NOTE: not a syscall: used by _ctx_kill_thread() |
---|
[695] | 2133 | { |
---|
[698] | 2134 | unsigned int channel = _get_context_slot( CTX_TTY_ID ); |
---|
| 2135 | |
---|
| 2136 | if ( channel == -1 ) |
---|
| 2137 | { |
---|
[709] | 2138 | unsigned int trdid = _get_thread_trdid(); |
---|
| 2139 | _printf("\n[GIET_ERROR] in _sys_tty_release() : " |
---|
| 2140 | "TTY channel already released for thread %x\n", trdid ); |
---|
[714] | 2141 | |
---|
| 2142 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[698] | 2143 | } |
---|
| 2144 | |
---|
[709] | 2145 | // reset CTX_TTY_ID for the calling thread |
---|
| 2146 | _set_context_slot( CTX_TTY_ID , 0xFFFFFFFF ); |
---|
[697] | 2147 | |
---|
[709] | 2148 | // atomically decrement the _tty_channel_allocator[] array |
---|
| 2149 | _atomic_increment( &_tty_channel_alloc[channel] , -1 ); |
---|
[695] | 2150 | |
---|
[709] | 2151 | // release WTI mailbox if TTY channel no more used |
---|
| 2152 | if ( USE_PIC && (_tty_channel_alloc[channel] == 0) ) |
---|
[698] | 2153 | { |
---|
[709] | 2154 | _ext_irq_release( ISR_TTY_RX , channel ); |
---|
[698] | 2155 | } |
---|
| 2156 | |
---|
[714] | 2157 | return SYSCALL_OK; |
---|
[709] | 2158 | } // end sys_tty_release() |
---|
[698] | 2159 | |
---|
[709] | 2160 | //////////////////////////////////////// |
---|
[440] | 2161 | int _sys_tty_write( const char* buffer, |
---|
| 2162 | unsigned int length, // number of characters |
---|
| 2163 | unsigned int channel) // channel index |
---|
| 2164 | { |
---|
| 2165 | unsigned int nwritten; |
---|
| 2166 | |
---|
| 2167 | // compute and check tty channel |
---|
| 2168 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
| 2169 | |
---|
[714] | 2170 | if( channel >= NB_TTY_CHANNELS ) |
---|
| 2171 | { |
---|
| 2172 | _printf("\n[GIET_ERROR] in _sys_tty_write() : " |
---|
| 2173 | "no TTY channel allocated for thread %x\n", _get_thread_trdid() ); |
---|
| 2174 | |
---|
| 2175 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 2176 | } |
---|
| 2177 | |
---|
[440] | 2178 | // write string to TTY channel |
---|
| 2179 | for (nwritten = 0; nwritten < length; nwritten++) |
---|
| 2180 | { |
---|
| 2181 | // check tty's status |
---|
| 2182 | if ( _tty_get_register( channel, TTY_STATUS ) & 0x2 ) break; |
---|
| 2183 | |
---|
| 2184 | // write one byte |
---|
| 2185 | if (buffer[nwritten] == '\n') |
---|
| 2186 | { |
---|
| 2187 | _tty_set_register( channel, TTY_WRITE, (unsigned int)'\r' ); |
---|
| 2188 | } |
---|
| 2189 | _tty_set_register( channel, TTY_WRITE, (unsigned int)buffer[nwritten] ); |
---|
| 2190 | } |
---|
| 2191 | |
---|
| 2192 | return nwritten; |
---|
| 2193 | } |
---|
| 2194 | |
---|
[709] | 2195 | /////////////////////////////////////// |
---|
[440] | 2196 | int _sys_tty_read( char* buffer, |
---|
| 2197 | unsigned int length, // unused |
---|
| 2198 | unsigned int channel) // channel index |
---|
| 2199 | { |
---|
| 2200 | // compute and check tty channel |
---|
| 2201 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
---|
| 2202 | |
---|
[714] | 2203 | if( channel >= NB_TTY_CHANNELS ) |
---|
| 2204 | { |
---|
| 2205 | _printf("\n[GIET_ERROR] in _sys_tty_read() : " |
---|
| 2206 | "no TTY channel allocated for thread %x\n", _get_thread_trdid() ); |
---|
| 2207 | |
---|
| 2208 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 2209 | } |
---|
| 2210 | |
---|
[709] | 2211 | unsigned int save_sr; |
---|
| 2212 | unsigned int found = 0; |
---|
| 2213 | |
---|
| 2214 | // get pointer on TTY_RX FIFO |
---|
| 2215 | tty_fifo_t* fifo = &_tty_rx_fifo[channel]; |
---|
| 2216 | |
---|
| 2217 | // try to read one character from FIFO |
---|
| 2218 | // blocked in while loop until success |
---|
| 2219 | while ( found == 0 ) |
---|
[440] | 2220 | { |
---|
[709] | 2221 | if ( fifo->sts == 0) // FIFO empty => deschedule |
---|
| 2222 | { |
---|
| 2223 | // enters critical section |
---|
| 2224 | _it_disable( &save_sr ); |
---|
[440] | 2225 | |
---|
[709] | 2226 | // set NORUN_MASK_TTY bit for calling thread |
---|
| 2227 | static_scheduler_t* psched = (static_scheduler_t*)_get_sched(); |
---|
| 2228 | unsigned int ltid = psched->current; |
---|
| 2229 | _atomic_or( &psched->context[ltid].slot[CTX_NORUN_ID] , NORUN_MASK_TTY ); |
---|
[440] | 2230 | |
---|
[709] | 2231 | // register descheduling thread trdid |
---|
| 2232 | fifo->trdid = _get_thread_trdid(); |
---|
[440] | 2233 | |
---|
[709] | 2234 | // deschedule calling thread |
---|
| 2235 | _ctx_switch(); |
---|
[440] | 2236 | |
---|
[709] | 2237 | // exit critical section |
---|
| 2238 | _it_restore( &save_sr ); |
---|
| 2239 | } |
---|
| 2240 | else // FIFO not empty => get one character |
---|
| 2241 | { |
---|
| 2242 | *buffer = fifo->data[fifo->ptr]; |
---|
| 2243 | fifo->sts = fifo->sts - 1; |
---|
| 2244 | fifo->ptr = (fifo->ptr + 1) % TTY_FIFO_DEPTH; |
---|
| 2245 | found = 1; |
---|
| 2246 | } |
---|
| 2247 | } |
---|
| 2248 | |
---|
| 2249 | return 1; |
---|
[440] | 2250 | } |
---|
| 2251 | |
---|
[709] | 2252 | |
---|
| 2253 | |
---|
[428] | 2254 | ////////////////////////////////////////////////////////////////////////////// |
---|
[709] | 2255 | // TIMER related syscall handlers |
---|
[428] | 2256 | ////////////////////////////////////////////////////////////////////////////// |
---|
[440] | 2257 | |
---|
| 2258 | //////////////////// |
---|
| 2259 | int _sys_tim_alloc() |
---|
[428] | 2260 | { |
---|
[440] | 2261 | |
---|
[709] | 2262 | #if NB_TIM_CHANNELS |
---|
| 2263 | |
---|
| 2264 | unsigned int channel; // allocated TIMER channel |
---|
| 2265 | |
---|
| 2266 | unsigned int trdid = _get_thread_trdid(); |
---|
| 2267 | |
---|
| 2268 | // check no TIMER already allocated to calling thread |
---|
| 2269 | if ( _get_context_slot( CTX_TIM_ID ) < NB_TIM_CHANNELS ) |
---|
[440] | 2270 | { |
---|
[709] | 2271 | _printf("\n[GIET_ERROR] in _sys_tim_alloc() : " |
---|
| 2272 | "TIMER channel already allocated to thread %x\n", trdid ); |
---|
[714] | 2273 | |
---|
| 2274 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[440] | 2275 | } |
---|
[709] | 2276 | |
---|
| 2277 | // get a TIMER channel |
---|
| 2278 | for ( channel = 0 ; channel < NB_TIM_CHANNELS ; channel++ ) |
---|
[440] | 2279 | { |
---|
[709] | 2280 | unsigned int* palloc = &_tim_channel_alloc[channel]; |
---|
| 2281 | |
---|
| 2282 | if ( _atomic_test_and_set( palloc , 1 ) == 0 ) break; |
---|
[440] | 2283 | } |
---|
[709] | 2284 | if ( channel >= NB_TIM_CHANNELS ) |
---|
| 2285 | { |
---|
| 2286 | _printf("\n[GIET_ERROR] in _sys_tim_alloc() : " |
---|
| 2287 | "no TIMER channel available for thread %x\n", trdid ); |
---|
[714] | 2288 | |
---|
| 2289 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[709] | 2290 | } |
---|
[440] | 2291 | |
---|
[709] | 2292 | // allocate a WTI mailbox to the calling proc if external IRQ |
---|
| 2293 | unsigned int wti_id; |
---|
| 2294 | if ( USE_PIC ) _ext_irq_alloc( ISR_TIMER , channel , &wti_id ); |
---|
| 2295 | |
---|
| 2296 | // register wti_id and coordinates for processor receiving WTI |
---|
| 2297 | unsigned int procid = _get_procid(); |
---|
| 2298 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
---|
| 2299 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 2300 | unsigned int p = procid & ((1<<P_WIDTH)-1); |
---|
| 2301 | _tim_channel_wti[channel] = x<<24 | y<<16 | p<<8 | wti_id; |
---|
| 2302 | |
---|
| 2303 | // update CTX_TIM_ID in thread context |
---|
| 2304 | _set_context_slot( CTX_TIM_ID, channel ); |
---|
| 2305 | |
---|
[714] | 2306 | return SYSCALL_OK; |
---|
[709] | 2307 | |
---|
| 2308 | #else |
---|
| 2309 | |
---|
[714] | 2310 | _printf("\n[GIET ERROR] in _sys_tim_alloc(): NB_TIM_CHANNELS == 0\n"); |
---|
[709] | 2311 | |
---|
[714] | 2312 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
| 2313 | |
---|
[709] | 2314 | #endif |
---|
| 2315 | } // end _sys_tim_alloc() |
---|
| 2316 | |
---|
| 2317 | |
---|
| 2318 | ////////////////////// |
---|
[714] | 2319 | int _sys_tim_release() // NOTE: not a syscall: used by _ctx_kill_thread() |
---|
[695] | 2320 | { |
---|
| 2321 | |
---|
[709] | 2322 | #if NB_TIM_CHANNELS |
---|
[695] | 2323 | |
---|
[709] | 2324 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
| 2325 | |
---|
| 2326 | if ( channel == -1 ) |
---|
| 2327 | { |
---|
| 2328 | unsigned int trdid = _get_thread_trdid(); |
---|
[714] | 2329 | _printf("\n[GIET_ERROR] in _sys_tim_release(): " |
---|
[709] | 2330 | "TIMER channel already released for thread %x\n", trdid ); |
---|
[714] | 2331 | |
---|
| 2332 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[709] | 2333 | } |
---|
| 2334 | |
---|
| 2335 | // reset CTX_TIM_ID for the calling thread |
---|
| 2336 | _set_context_slot( CTX_TIM_ID , 0xFFFFFFFF ); |
---|
| 2337 | |
---|
| 2338 | // reset the _tim_channel_alloc[] array |
---|
| 2339 | _tim_channel_alloc[channel] = 0; |
---|
| 2340 | |
---|
| 2341 | // release WTI mailbox if TTY channel no more used |
---|
| 2342 | if ( USE_PIC ) |
---|
| 2343 | { |
---|
| 2344 | _ext_irq_release( PERIPH_TYPE_TIM , channel ); |
---|
| 2345 | } |
---|
| 2346 | |
---|
[714] | 2347 | return SYSCALL_OK; |
---|
[709] | 2348 | |
---|
| 2349 | #else |
---|
| 2350 | |
---|
[714] | 2351 | _printf("\n[GIET ERROR] in _sys_tim_release(): NB_TIM_CHANNELS = 0\n"); |
---|
[709] | 2352 | |
---|
[714] | 2353 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
| 2354 | |
---|
[709] | 2355 | #endif |
---|
| 2356 | } // end _sys_tim_release() |
---|
| 2357 | |
---|
[440] | 2358 | ///////////////////////////////////////// |
---|
| 2359 | int _sys_tim_start( unsigned int period ) |
---|
| 2360 | { |
---|
[709] | 2361 | |
---|
| 2362 | #if NB_TIM_CHANNELS |
---|
| 2363 | |
---|
[440] | 2364 | // get timer index |
---|
| 2365 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
[714] | 2366 | |
---|
[440] | 2367 | if ( channel >= NB_TIM_CHANNELS ) |
---|
| 2368 | { |
---|
[714] | 2369 | _printf("\n[GIET_ERROR] in _sys_tim_start(): not enough TIM channels\n"); |
---|
| 2370 | |
---|
| 2371 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[440] | 2372 | } |
---|
| 2373 | |
---|
| 2374 | // start timer |
---|
| 2375 | _timer_start( channel, period ); |
---|
| 2376 | |
---|
[714] | 2377 | return SYSCALL_OK; |
---|
[709] | 2378 | |
---|
| 2379 | #else |
---|
| 2380 | |
---|
| 2381 | _printf("\n[GIET ERROR] in _sys_tim_start() : NB_TIM_CHANNELS = 0\n"); |
---|
| 2382 | |
---|
[714] | 2383 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
| 2384 | |
---|
[709] | 2385 | #endif |
---|
[440] | 2386 | } |
---|
| 2387 | |
---|
| 2388 | /////////////////// |
---|
| 2389 | int _sys_tim_stop() |
---|
| 2390 | { |
---|
[709] | 2391 | |
---|
| 2392 | #if NB_TIM_CHANNELS |
---|
| 2393 | |
---|
[440] | 2394 | // get timer index |
---|
| 2395 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
---|
[714] | 2396 | |
---|
[440] | 2397 | if ( channel >= NB_TIM_CHANNELS ) |
---|
| 2398 | { |
---|
| 2399 | _printf("\n[GIET_ERROR] in _sys_tim_stop() : illegal timer index\n"); |
---|
[714] | 2400 | |
---|
| 2401 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 2402 | } |
---|
| 2403 | |
---|
| 2404 | // stop timer |
---|
| 2405 | _timer_stop( channel ); |
---|
| 2406 | |
---|
[714] | 2407 | return SYSCALL_OK; |
---|
[709] | 2408 | |
---|
| 2409 | #else |
---|
| 2410 | |
---|
| 2411 | _printf("\n[GIET ERROR] in _sys_tim_stop() : NB_TIM_CHANNELS = 0\n"); |
---|
| 2412 | |
---|
[714] | 2413 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
| 2414 | |
---|
[709] | 2415 | #endif |
---|
[440] | 2416 | } |
---|
| 2417 | |
---|
[709] | 2418 | |
---|
[440] | 2419 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 2420 | // NIC related syscall handlers |
---|
| 2421 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 2422 | |
---|
[478] | 2423 | #define NIC_CONTAINER_SIZE 4096 |
---|
| 2424 | |
---|
[754] | 2425 | #if NB_NIC_CHANNELS && NB_CMA_CHANNELS |
---|
[709] | 2426 | |
---|
[494] | 2427 | //////////////////////////////////////// |
---|
| 2428 | int _sys_nic_alloc( unsigned int is_rx, |
---|
| 2429 | unsigned int xmax, |
---|
| 2430 | unsigned int ymax ) |
---|
[440] | 2431 | { |
---|
[709] | 2432 | mapping_header_t *header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 2433 | mapping_vspace_t *vspace = _get_vspace_base(header); |
---|
| 2434 | mapping_thread_t *thread = _get_thread_base(header); |
---|
| 2435 | |
---|
| 2436 | // get calling thread trdid, vspace index, and number of threads |
---|
| 2437 | unsigned int trdid = _get_thread_trdid(); |
---|
| 2438 | unsigned int vsid = _get_context_slot( CTX_VSID_ID ); |
---|
| 2439 | unsigned int users = vspace[vsid].threads; |
---|
| 2440 | |
---|
[494] | 2441 | // check xmax / ymax parameters |
---|
[709] | 2442 | if ( (xmax > X_SIZE) || (ymax > Y_SIZE) ) |
---|
[494] | 2443 | { |
---|
[709] | 2444 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() " |
---|
| 2445 | "xmax or ymax argument too large for thread %x\n", trdid ); |
---|
[714] | 2446 | |
---|
[725] | 2447 | return SYSCALL_ILLEGAL_ARGUMENT; |
---|
[494] | 2448 | } |
---|
[459] | 2449 | |
---|
[614] | 2450 | //////////////////////////////////////////////////////// |
---|
| 2451 | // Step 1: get and register CMA and NIC channel index // |
---|
| 2452 | //////////////////////////////////////////////////////// |
---|
| 2453 | |
---|
[709] | 2454 | unsigned int nic_channel; |
---|
| 2455 | unsigned int cma_channel; |
---|
| 2456 | unsigned int* palloc; |
---|
[440] | 2457 | |
---|
[709] | 2458 | // get a NIC_RX or NIC_TX channel |
---|
| 2459 | for ( nic_channel = 0 ; nic_channel < NB_NIC_CHANNELS ; nic_channel++ ) |
---|
| 2460 | { |
---|
| 2461 | if ( is_rx ) palloc = &_nic_rx_channel_alloc[nic_channel]; |
---|
| 2462 | else palloc = &_nic_tx_channel_alloc[nic_channel]; |
---|
[449] | 2463 | |
---|
[709] | 2464 | if ( _atomic_test_and_set( palloc , users ) == 0 ) break; |
---|
| 2465 | } |
---|
[449] | 2466 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
---|
[440] | 2467 | { |
---|
[709] | 2468 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
| 2469 | "no NIC channel available for thread %x\n", trdid ); |
---|
[714] | 2470 | |
---|
| 2471 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[440] | 2472 | } |
---|
[449] | 2473 | |
---|
[709] | 2474 | // get a CMA channel |
---|
[699] | 2475 | for ( cma_channel = 0 ; cma_channel < NB_CMA_CHANNELS ; cma_channel++ ) |
---|
| 2476 | { |
---|
[709] | 2477 | palloc = &_cma_channel_alloc[cma_channel]; |
---|
| 2478 | |
---|
| 2479 | if ( _atomic_test_and_set( palloc , users ) == 0 ) break; |
---|
[699] | 2480 | } |
---|
[449] | 2481 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
| 2482 | { |
---|
[709] | 2483 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
| 2484 | "no CMA channel available for thread %x\n", trdid ); |
---|
| 2485 | if ( is_rx ) _nic_rx_channel_alloc[nic_channel] = 0; |
---|
| 2486 | else _nic_tx_channel_alloc[nic_channel] = 0; |
---|
[714] | 2487 | |
---|
| 2488 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[449] | 2489 | } |
---|
[459] | 2490 | |
---|
[494] | 2491 | #if GIET_DEBUG_NIC |
---|
[714] | 2492 | _printf("\n[DEBUG NIC] sys_nic_alloc() at cycle %d\n" |
---|
| 2493 | "thread %d get nic_channel = %d / cma_channel = %d\n", |
---|
| 2494 | _get_proctime() , trdid , nic_channel , cma_channel ); |
---|
[494] | 2495 | #endif |
---|
| 2496 | |
---|
[709] | 2497 | // register nic_index and cma_index in all threads |
---|
| 2498 | // contexts that are in the same vspace |
---|
| 2499 | unsigned int tid; |
---|
| 2500 | for (tid = vspace[vsid].thread_offset; |
---|
| 2501 | tid < (vspace[vsid].thread_offset + vspace[vsid].threads); |
---|
| 2502 | tid++) |
---|
[449] | 2503 | { |
---|
[709] | 2504 | unsigned int y_size = header->y_size; |
---|
| 2505 | unsigned int cid = thread[tid].clusterid; |
---|
| 2506 | unsigned int x = cid / y_size; |
---|
| 2507 | unsigned int y = cid % y_size; |
---|
| 2508 | unsigned int p = thread[tid].proclocid; |
---|
| 2509 | unsigned int ltid = thread[tid].ltid; |
---|
| 2510 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
[440] | 2511 | |
---|
[709] | 2512 | if ( is_rx ) |
---|
| 2513 | { |
---|
| 2514 | if ( (psched->context[ltid].slot[CTX_NIC_RX_ID] < NB_NIC_CHANNELS) || |
---|
| 2515 | (psched->context[ltid].slot[CTX_CMA_RX_ID] < NB_CMA_CHANNELS) ) |
---|
| 2516 | { |
---|
| 2517 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
| 2518 | "NIC_RX or CMA_RX channel already allocated for thread %x\n", trdid ); |
---|
| 2519 | _nic_rx_channel_alloc[nic_channel] = 0; |
---|
| 2520 | _cma_channel_alloc[cma_channel] = 0; |
---|
[714] | 2521 | |
---|
| 2522 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[709] | 2523 | } |
---|
| 2524 | else |
---|
| 2525 | { |
---|
| 2526 | psched->context[ltid].slot[CTX_NIC_RX_ID] = nic_channel; |
---|
| 2527 | psched->context[ltid].slot[CTX_CMA_RX_ID] = cma_channel; |
---|
| 2528 | } |
---|
| 2529 | } |
---|
| 2530 | else // is_tx |
---|
| 2531 | { |
---|
| 2532 | if ( (psched->context[ltid].slot[CTX_NIC_TX_ID] < NB_NIC_CHANNELS) || |
---|
| 2533 | (psched->context[ltid].slot[CTX_CMA_TX_ID] < NB_CMA_CHANNELS) ) |
---|
| 2534 | { |
---|
| 2535 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
| 2536 | "NIC_TX or CMA_TX channel already allocated for thread %x\n", trdid ); |
---|
| 2537 | _nic_tx_channel_alloc[nic_channel] = 0; |
---|
| 2538 | _cma_channel_alloc[cma_channel] = 0; |
---|
[714] | 2539 | |
---|
| 2540 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[709] | 2541 | } |
---|
| 2542 | else |
---|
| 2543 | { |
---|
| 2544 | psched->context[ltid].slot[CTX_NIC_TX_ID] = nic_channel; |
---|
| 2545 | psched->context[ltid].slot[CTX_CMA_TX_ID] = cma_channel; |
---|
| 2546 | } |
---|
| 2547 | } |
---|
| 2548 | } // end loop on threads |
---|
| 2549 | |
---|
[614] | 2550 | ///////////////////////////////////////////////////////////////////////////////// |
---|
| 2551 | // Step 2: loop on all the clusters // |
---|
| 2552 | // Allocate the kernel containers and status, compute the container and the // |
---|
| 2553 | // status physical addresses, fill and synchronize the kernel CHBUF descriptor // |
---|
| 2554 | ///////////////////////////////////////////////////////////////////////////////// |
---|
| 2555 | |
---|
[494] | 2556 | // physical addresses to be registered in the CMA registers |
---|
[459] | 2557 | unsigned long long nic_chbuf_pbase; // NIC chbuf physical address |
---|
| 2558 | unsigned long long ker_chbuf_pbase; // kernel chbuf physical address |
---|
[449] | 2559 | |
---|
[614] | 2560 | // allocate one kernel container and one status variable per cluster in the |
---|
| 2561 | // (xmax / ymax) mesh |
---|
[528] | 2562 | unsigned int cx; // cluster X coordinate |
---|
| 2563 | unsigned int cy; // cluster Y coordinate |
---|
| 2564 | unsigned int index; // container index in chbuf |
---|
| 2565 | unsigned int vaddr; // virtual address |
---|
| 2566 | unsigned long long cont_paddr; // container physical address |
---|
[614] | 2567 | unsigned long long sts_paddr; // container status physical address |
---|
[494] | 2568 | |
---|
[528] | 2569 | unsigned int flags; // for _v2p_translate() |
---|
| 2570 | |
---|
[494] | 2571 | for ( cx = 0 ; cx < xmax ; cx++ ) |
---|
[478] | 2572 | { |
---|
[494] | 2573 | for ( cy = 0 ; cy < ymax ; cy++ ) |
---|
[478] | 2574 | { |
---|
| 2575 | // compute index in chbuf |
---|
[494] | 2576 | index = (cx * ymax) + cy; |
---|
[478] | 2577 | |
---|
[494] | 2578 | // allocate the kernel container |
---|
[478] | 2579 | vaddr = (unsigned int)_remote_malloc( NIC_CONTAINER_SIZE, cx, cy ); |
---|
| 2580 | |
---|
[494] | 2581 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
---|
| 2582 | { |
---|
[709] | 2583 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
[714] | 2584 | "not enough kernel heap in cluster[%d,%d]\n", cx, cy ); |
---|
| 2585 | |
---|
| 2586 | return SYSCALL_OUT_OF_KERNEL_HEAP_MEMORY; |
---|
[494] | 2587 | } |
---|
| 2588 | |
---|
[478] | 2589 | // compute container physical address |
---|
[528] | 2590 | cont_paddr = _v2p_translate( vaddr , &flags ); |
---|
[478] | 2591 | |
---|
[614] | 2592 | // checking container address alignment |
---|
| 2593 | if ( cont_paddr & 0x3F ) |
---|
| 2594 | { |
---|
[709] | 2595 | _printf("\n[GIET ERROR] in _sys_nic_alloc() : " |
---|
[714] | 2596 | "container address in cluster[%d,%d] not aligned\n", cx, cy); |
---|
| 2597 | |
---|
| 2598 | return SYSCALL_ADDRESS_NON_ALIGNED; |
---|
[614] | 2599 | } |
---|
| 2600 | |
---|
| 2601 | #if GIET_DEBUG_NIC |
---|
[714] | 2602 | _printf("\n[DEBUG NIC] _sys_nic_alloc() at cycle %d\n" |
---|
| 2603 | "thread %x allocates a container in cluster[%d,%d] / vaddr = %x / paddr = %l\n", |
---|
| 2604 | -get_proctime() , trdid , cx , cy , vaddr, cont_paddr ); |
---|
[614] | 2605 | #endif |
---|
| 2606 | |
---|
| 2607 | // allocate the kernel container status |
---|
| 2608 | // it occupies 64 bytes but only last bit is useful (1 for full and 0 for empty) |
---|
| 2609 | vaddr = (unsigned int)_remote_malloc( 64, cx, cy ); |
---|
| 2610 | |
---|
| 2611 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
---|
| 2612 | { |
---|
[709] | 2613 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() : " |
---|
| 2614 | "not enough kernel heap in cluster[%d,%d]\n", cx, cy ); |
---|
[714] | 2615 | |
---|
| 2616 | return SYSCALL_OUT_OF_KERNEL_HEAP_MEMORY; |
---|
[614] | 2617 | } |
---|
| 2618 | |
---|
| 2619 | // compute status physical address |
---|
| 2620 | sts_paddr = _v2p_translate( vaddr , &flags ); |
---|
| 2621 | |
---|
| 2622 | // checking status address alignment |
---|
| 2623 | if ( sts_paddr & 0x3F ) |
---|
| 2624 | { |
---|
[709] | 2625 | _printf("\n[GIET ERROR] in _sys_nic_alloc() : " |
---|
[714] | 2626 | "status address in cluster[%d,%d] not aligned\n", cx, cy); |
---|
| 2627 | |
---|
| 2628 | return SYSCALL_ADDRESS_NON_ALIGNED; |
---|
[614] | 2629 | } |
---|
| 2630 | |
---|
[494] | 2631 | // initialize chbuf entry |
---|
[614] | 2632 | // The buffer descriptor has the following structure: |
---|
| 2633 | // - the 26 LSB bits contain bits[6:31] of the buffer physical address |
---|
| 2634 | // - the 26 following bits contain bits[6:31] of the physical address where the |
---|
| 2635 | // buffer status is located |
---|
| 2636 | // - the 12 MSB bits contain the common address extension of the buffer and its |
---|
| 2637 | // status |
---|
| 2638 | if ( is_rx ) |
---|
| 2639 | _nic_ker_rx_chbuf[nic_channel].buf_desc[index] = |
---|
| 2640 | (unsigned long long) |
---|
| 2641 | ((sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
| 2642 | (((cont_paddr & 0xFFFFFFFFFFFULL) >> 6) << 26); |
---|
| 2643 | else |
---|
| 2644 | _nic_ker_tx_chbuf[nic_channel].buf_desc[index] = |
---|
| 2645 | (unsigned long long) |
---|
| 2646 | ((sts_paddr & 0xFFFFFFC0ULL) >> 6) + |
---|
| 2647 | (((cont_paddr & 0xFFFFFFFFFC0ULL) >> 6) << 26); |
---|
[478] | 2648 | |
---|
| 2649 | #if GIET_DEBUG_NIC |
---|
[714] | 2650 | _printf("\n[DEBUG NIC] _sys_nic_alloc() at cycle %d\n" |
---|
| 2651 | "thread %x allocates a status in cluster[%d,%d] / vaddr = %x / paddr = %l\n" |
---|
| 2652 | " descriptor = %l\n", |
---|
| 2653 | _get_proctime() , trdid , cx , cy , vaddr, sts_paddr, |
---|
[614] | 2654 | (unsigned long long)((sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
| 2655 | (((cont_paddr & 0xFFFFFFFFFFFULL) >> 6) << 26) ); |
---|
[478] | 2656 | #endif |
---|
| 2657 | } |
---|
| 2658 | } |
---|
| 2659 | |
---|
[494] | 2660 | // complete kernel chbuf initialisation |
---|
| 2661 | if ( is_rx ) |
---|
| 2662 | { |
---|
[614] | 2663 | _nic_ker_rx_chbuf[nic_channel].xmax = xmax; |
---|
| 2664 | _nic_ker_rx_chbuf[nic_channel].ymax = ymax; |
---|
[494] | 2665 | } |
---|
| 2666 | else |
---|
| 2667 | { |
---|
[614] | 2668 | _nic_ker_tx_chbuf[nic_channel].xmax = xmax; |
---|
| 2669 | _nic_ker_tx_chbuf[nic_channel].ymax = ymax; |
---|
[494] | 2670 | } |
---|
| 2671 | |
---|
[449] | 2672 | // compute the kernel chbuf descriptor physical address |
---|
[614] | 2673 | if ( is_rx ) vaddr = (unsigned int)( &_nic_ker_rx_chbuf[nic_channel] ); |
---|
| 2674 | else vaddr = (unsigned int)( &_nic_ker_tx_chbuf[nic_channel] ); |
---|
[440] | 2675 | |
---|
[528] | 2676 | ker_chbuf_pbase = _v2p_translate( vaddr , &flags ); |
---|
| 2677 | |
---|
[459] | 2678 | #if GIET_DEBUG_NIC |
---|
[714] | 2679 | _printf("\n[DEBUG NIC] _sys_nic_alloc() at cycle %d\n" |
---|
| 2680 | "thread %x initialise kernel chbuf / vaddr = %x / paddr = %l\n", |
---|
| 2681 | _get_proctime() , trdid , vaddr , ker_chbuf_pbase ); |
---|
[459] | 2682 | #endif |
---|
[440] | 2683 | |
---|
[459] | 2684 | // sync the kernel chbuf in L2 after write in L2 |
---|
[725] | 2685 | _mmc_sync( ker_chbuf_pbase, sizeof( nic_chbuf_t ) ); |
---|
[459] | 2686 | |
---|
[614] | 2687 | /////////////////////////////////////////////////////////////// |
---|
| 2688 | // Step 3: compute the NIC chbuf descriptor physical address // |
---|
| 2689 | /////////////////////////////////////////////////////////////// |
---|
| 2690 | |
---|
| 2691 | unsigned int offset; |
---|
| 2692 | if ( is_rx ) offset = 0x4100; |
---|
| 2693 | else offset = 0x4110; |
---|
| 2694 | nic_chbuf_pbase = (((unsigned long long)((X_IO << Y_WIDTH) + Y_IO))<<32) | |
---|
| 2695 | (SEG_NIC_BASE + (nic_channel<<15) + offset); |
---|
| 2696 | |
---|
| 2697 | #if GIET_DEBUG_NIC |
---|
[714] | 2698 | _printf("\n[DEBUG NIC] _sys_nic_alloc() at cycle %d\n" |
---|
| 2699 | "thread %x get NIC chbuf paddr = %l\n", |
---|
| 2700 | _get_proctime() , trdid , nic_chbuf_pbase ); |
---|
[614] | 2701 | #endif |
---|
| 2702 | |
---|
| 2703 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2704 | // Step 4: initialize CMA registers defining the source & destination chbufs // |
---|
| 2705 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2706 | |
---|
[459] | 2707 | if ( is_rx ) // NIC to kernel |
---|
| 2708 | { |
---|
| 2709 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
| 2710 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
| 2711 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, 2 ); |
---|
| 2712 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
| 2713 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
[494] | 2714 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, xmax * ymax ); |
---|
[459] | 2715 | } |
---|
| 2716 | else // kernel to NIC |
---|
| 2717 | { |
---|
| 2718 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(ker_chbuf_pbase) ); |
---|
| 2719 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
---|
[494] | 2720 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, xmax * ymax ); |
---|
[459] | 2721 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(nic_chbuf_pbase) ); |
---|
| 2722 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
---|
| 2723 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, 2 ); |
---|
| 2724 | } |
---|
| 2725 | |
---|
[494] | 2726 | #if GIET_DEBUG_NIC |
---|
[714] | 2727 | _printf("\n[DEBUG NIC] _sys_nic_alloc() at cycle %d\n" |
---|
| 2728 | "thread %x exit\n", |
---|
| 2729 | _get_proctime() , trdid ); |
---|
[494] | 2730 | #endif |
---|
| 2731 | |
---|
[714] | 2732 | return SYSCALL_OK; |
---|
[494] | 2733 | } // end _sys_nic_alloc() |
---|
| 2734 | |
---|
| 2735 | |
---|
[709] | 2736 | ////////////////////////////////////////// |
---|
[714] | 2737 | int _sys_nic_release( unsigned int is_rx ) // NOTE: not a syscall: used by _ctx_kill_thread() |
---|
[695] | 2738 | { |
---|
[709] | 2739 | unsigned int trdid = _get_thread_trdid(); |
---|
| 2740 | |
---|
| 2741 | unsigned int nic_channel; |
---|
| 2742 | unsigned int cma_channel; |
---|
| 2743 | |
---|
| 2744 | // update the kernel tables |
---|
[695] | 2745 | if ( is_rx ) |
---|
[709] | 2746 | { |
---|
| 2747 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 2748 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
| 2749 | |
---|
| 2750 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
---|
| 2751 | { |
---|
| 2752 | _printf("\n[GIET ERROR] in _sys_nic_release() : " |
---|
| 2753 | "NIC_RX channel already released for thread %x\n", trdid ); |
---|
[714] | 2754 | |
---|
| 2755 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[709] | 2756 | } |
---|
| 2757 | if ( (cma_channel >= NB_CMA_CHANNELS) ) |
---|
| 2758 | { |
---|
| 2759 | _printf("\n[GIET ERROR] in _sys_nic_release() : " |
---|
| 2760 | "CMA_RX channel already released for thread %x\n", trdid ); |
---|
[714] | 2761 | |
---|
| 2762 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[709] | 2763 | } |
---|
| 2764 | |
---|
| 2765 | // atomically decrement the NIC and CMA channel allocators |
---|
| 2766 | _atomic_increment( &_nic_rx_channel_alloc[nic_channel] , -1 ); |
---|
| 2767 | _atomic_increment( &_cma_channel_alloc[cma_channel] , -1 ); |
---|
| 2768 | |
---|
| 2769 | // stop the NIC and CMA peripherals channels if no more users |
---|
| 2770 | if ( (_nic_rx_channel_alloc[nic_channel] == 0) && |
---|
| 2771 | (_cma_channel_alloc[cma_channel] == 0) ) _sys_nic_stop( 1 ); |
---|
| 2772 | |
---|
| 2773 | // reset the calling thread context slots |
---|
| 2774 | _set_context_slot( CTX_NIC_RX_ID , 0xFFFFFFFF ); |
---|
| 2775 | _set_context_slot( CTX_CMA_RX_ID , 0xFFFFFFFF ); |
---|
| 2776 | } |
---|
[695] | 2777 | else |
---|
[709] | 2778 | { |
---|
| 2779 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
| 2780 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
[695] | 2781 | |
---|
[709] | 2782 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
---|
| 2783 | { |
---|
| 2784 | _printf("\n[GIET ERROR] in _sys_nic_release() : " |
---|
| 2785 | "NIC_TX channel already released for thread %x\n", trdid ); |
---|
[714] | 2786 | |
---|
| 2787 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[709] | 2788 | } |
---|
| 2789 | if ( (cma_channel >= NB_CMA_CHANNELS) ) |
---|
| 2790 | { |
---|
| 2791 | _printf("\n[GIET ERROR] in _sys_nic_release() : " |
---|
| 2792 | "CMA_TX channel already released for thread %x\n", trdid ); |
---|
[714] | 2793 | |
---|
| 2794 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[709] | 2795 | } |
---|
[695] | 2796 | |
---|
[709] | 2797 | // atomically decrement the NIC and CMA channel allocators |
---|
| 2798 | _atomic_increment( &_nic_tx_channel_alloc[nic_channel] , -1 ); |
---|
| 2799 | _atomic_increment( &_cma_channel_alloc[cma_channel] , -1 ); |
---|
| 2800 | |
---|
| 2801 | // stop the NIC and CMA peripherals channels if no more users |
---|
| 2802 | if ( (_nic_tx_channel_alloc[nic_channel] == 0) && |
---|
| 2803 | (_cma_channel_alloc[cma_channel] == 0) ) _sys_nic_stop( 0 ); |
---|
[695] | 2804 | |
---|
[709] | 2805 | // reset the calling thread context slots |
---|
| 2806 | _set_context_slot( CTX_NIC_TX_ID , 0xFFFFFFFF ); |
---|
| 2807 | _set_context_slot( CTX_CMA_TX_ID , 0xFFFFFFFF ); |
---|
| 2808 | } |
---|
| 2809 | |
---|
[714] | 2810 | return SYSCALL_OK; |
---|
[709] | 2811 | } // end sys_nic_release() |
---|
| 2812 | |
---|
| 2813 | |
---|
[695] | 2814 | //////////////////////////////////////// |
---|
[709] | 2815 | int _sys_nic_start( unsigned int is_rx ) |
---|
[494] | 2816 | { |
---|
[709] | 2817 | unsigned int trdid = _get_context_slot( CTX_TRDID_ID ); |
---|
| 2818 | |
---|
[494] | 2819 | unsigned int nic_channel; |
---|
| 2820 | unsigned int cma_channel; |
---|
| 2821 | |
---|
[709] | 2822 | // get NIC channel index and CMA channel index from thread context |
---|
[494] | 2823 | if ( is_rx ) |
---|
| 2824 | { |
---|
| 2825 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 2826 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
| 2827 | } |
---|
| 2828 | else |
---|
| 2829 | { |
---|
| 2830 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
| 2831 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
| 2832 | } |
---|
| 2833 | |
---|
| 2834 | #if GIET_DEBUG_NIC |
---|
[714] | 2835 | _printf("\n[DEBUG NIC] _sys_nic_start() at cycle %d\n" |
---|
| 2836 | "thread %x enter / NIC channel = %d / CMA channel = %d\n", |
---|
| 2837 | _get_proctime() , trdid , nic_channel, cma_channel ); |
---|
[494] | 2838 | #endif |
---|
| 2839 | |
---|
| 2840 | // check NIC and CMA channels index |
---|
[709] | 2841 | if ( nic_channel >= NB_NIC_CHANNELS ) |
---|
[494] | 2842 | { |
---|
[709] | 2843 | _printf("\n[GIET_ERROR] in _sys_nic_start() : " |
---|
| 2844 | "illegal NIC channel for thread %x\n", trdid ); |
---|
| 2845 | return -1111; |
---|
[494] | 2846 | } |
---|
| 2847 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
| 2848 | { |
---|
[709] | 2849 | _printf("\n[GIET_ERROR] in _sys_nic_start() : " |
---|
| 2850 | "illegal CMA channel for thread %x\n", trdid ); |
---|
| 2851 | return -1111; |
---|
[494] | 2852 | } |
---|
| 2853 | |
---|
[449] | 2854 | // start CMA transfer |
---|
[478] | 2855 | _cma_set_register( cma_channel, CHBUF_BUF_SIZE , NIC_CONTAINER_SIZE ); |
---|
[725] | 2856 | _cma_set_register( cma_channel, CHBUF_PERIOD , 0 ); // OUT_OF_ORDER |
---|
| 2857 | _cma_set_register( cma_channel, CHBUF_RUN , MODE_NORMAL ); |
---|
[449] | 2858 | |
---|
| 2859 | // activates NIC channel |
---|
[614] | 2860 | _nic_channel_start( nic_channel, is_rx, GIET_NIC_MAC4, GIET_NIC_MAC2 ); |
---|
[459] | 2861 | |
---|
| 2862 | #if GIET_DEBUG_NIC |
---|
[714] | 2863 | _printf("\n[DEBUG NIC] _sys_nic_start() at cycle %d\n" |
---|
| 2864 | "thread %d exit\n", |
---|
| 2865 | _get_proctime() , trdid ); |
---|
[459] | 2866 | #endif |
---|
| 2867 | |
---|
[714] | 2868 | return SYSCALL_OK; |
---|
[505] | 2869 | } // end _sys_nic_start() |
---|
[449] | 2870 | |
---|
[494] | 2871 | |
---|
[449] | 2872 | ////////////////////////////////////// |
---|
| 2873 | int _sys_nic_move( unsigned int is_rx, |
---|
| 2874 | void* buffer ) |
---|
| 2875 | { |
---|
[709] | 2876 | unsigned int trdid = _get_context_slot( CTX_TRDID_ID ); |
---|
[449] | 2877 | |
---|
[709] | 2878 | unsigned int channel; |
---|
| 2879 | |
---|
[459] | 2880 | #if GIET_DEBUG_NIC |
---|
[714] | 2881 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n", |
---|
| 2882 | "thread %x enters\n", |
---|
| 2883 | _get_proctime() , trdid ); |
---|
[459] | 2884 | #endif |
---|
| 2885 | |
---|
[709] | 2886 | // get NIC channel index from thread context |
---|
| 2887 | if ( is_rx ) channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 2888 | else channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
| 2889 | |
---|
[494] | 2890 | // check NIC channel index |
---|
| 2891 | if ( channel >= NB_NIC_CHANNELS ) |
---|
| 2892 | { |
---|
[709] | 2893 | _printf("\n[GIET_ERROR] in _sys_nic_move() : " |
---|
[714] | 2894 | "NIC channel non allocated for thread %x\n", trdid ); |
---|
| 2895 | |
---|
| 2896 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[494] | 2897 | } |
---|
| 2898 | |
---|
| 2899 | // get kernel chbuf virtual address |
---|
[725] | 2900 | nic_chbuf_t* ker_chbuf; |
---|
[614] | 2901 | if ( is_rx ) ker_chbuf = &_nic_ker_rx_chbuf[channel]; |
---|
| 2902 | else ker_chbuf = &_nic_ker_tx_chbuf[channel]; |
---|
[494] | 2903 | |
---|
| 2904 | // get xmax / ymax parameters |
---|
[614] | 2905 | unsigned int xmax = ker_chbuf->xmax; |
---|
| 2906 | unsigned int ymax = ker_chbuf->ymax; |
---|
[494] | 2907 | |
---|
[709] | 2908 | // get cluster coordinates for the processor running the calling thread |
---|
[478] | 2909 | unsigned int procid = _get_procid(); |
---|
| 2910 | unsigned int cx = procid >> (Y_WIDTH + P_WIDTH); |
---|
| 2911 | unsigned int cy = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 2912 | |
---|
[494] | 2913 | // check processor coordinates / (xmax,ymax) |
---|
[714] | 2914 | if ( (cx >= xmax) || (cy >= ymax) ) |
---|
[494] | 2915 | { |
---|
[714] | 2916 | _printf("\n[GIET_ERROR] in _sys_nic_move(): " |
---|
| 2917 | "processor coordinates [%d,%d] larger than (xmax,ymax) = [%d,%d]\n", |
---|
| 2918 | cx , cy , xmax , ymax ); |
---|
| 2919 | |
---|
[725] | 2920 | return SYSCALL_ILLEGAL_ARGUMENT; |
---|
[494] | 2921 | } |
---|
| 2922 | |
---|
[614] | 2923 | unsigned long long usr_buf_paddr; // user buffer physical address |
---|
| 2924 | unsigned long long ker_buf_paddr; // kernel buffer physical address |
---|
| 2925 | unsigned long long ker_sts_paddr; // kernel buffer status physical address |
---|
| 2926 | unsigned long long ker_buf_desc; // kernel buffer descriptor |
---|
| 2927 | unsigned int ker_sts; // kernel buffer status (full or empty) |
---|
| 2928 | unsigned int index; // kernel buffer index in chbuf |
---|
| 2929 | unsigned int flags; // for _v2P_translate |
---|
[459] | 2930 | |
---|
| 2931 | // Compute user buffer physical address and check access rights |
---|
[614] | 2932 | usr_buf_paddr = _v2p_translate( (unsigned int)buffer , &flags ); |
---|
[478] | 2933 | |
---|
[440] | 2934 | if ( (flags & PTE_U) == 0 ) |
---|
| 2935 | { |
---|
[714] | 2936 | _printf("\n[GIET ERROR] in _sys_nic_tx_move() : " |
---|
| 2937 | "buffer address non user accessible\n"); |
---|
| 2938 | |
---|
| 2939 | return SYSCALL_ADDRESS_NON_USER_ACCESSIBLE; |
---|
[440] | 2940 | } |
---|
| 2941 | |
---|
[459] | 2942 | #if GIET_DEBUG_NIC |
---|
[714] | 2943 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 2944 | "thread %x get user buffer : paddr = %l\n", |
---|
| 2945 | _get_proctime() , trdid , usr_buf_paddr ); |
---|
[459] | 2946 | #endif |
---|
[440] | 2947 | |
---|
[614] | 2948 | // compute buffer index, buffer descriptor paddr and buffer status paddr |
---|
| 2949 | index = (ymax * cx) + cy; |
---|
| 2950 | ker_buf_desc = ker_chbuf->buf_desc[index]; |
---|
| 2951 | ker_sts_paddr = ((ker_buf_desc & 0xFFF0000000000000ULL) >> 20) + |
---|
| 2952 | ((ker_buf_desc & 0x3FFFFFFULL) << 6); |
---|
[459] | 2953 | |
---|
[614] | 2954 | #if GIET_DEBUG_NIC |
---|
[714] | 2955 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 2956 | "thread %x get ker_buf_desc %d / paddr = %l\n", |
---|
| 2957 | _get_proctime(), trdid , index , ker_buf_desc ); |
---|
[614] | 2958 | #endif |
---|
| 2959 | |
---|
[494] | 2960 | // poll local kernel container status until success |
---|
[478] | 2961 | while ( 1 ) |
---|
[449] | 2962 | { |
---|
[478] | 2963 | // inval buffer descriptor in L2 before read in L2 |
---|
[614] | 2964 | _mmc_inval( ker_sts_paddr, 4 ); |
---|
| 2965 | ker_sts = _physical_read( ker_sts_paddr ); |
---|
[459] | 2966 | |
---|
| 2967 | #if GIET_DEBUG_NIC |
---|
[714] | 2968 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 2969 | "thread %x get status %d / paddr = %l / status = %x\n", |
---|
| 2970 | _get_proctime() , trdid , index , ker_sts_paddr, ker_sts ); |
---|
[459] | 2971 | #endif |
---|
| 2972 | |
---|
[478] | 2973 | // test buffer status and break if found |
---|
[614] | 2974 | if ( ( is_rx != 0 ) && ( ker_sts == 0x1 ) ) break; |
---|
| 2975 | if ( ( is_rx == 0 ) && ( ker_sts == 0 ) ) break; |
---|
[449] | 2976 | } |
---|
[459] | 2977 | |
---|
| 2978 | // compute kernel buffer physical address |
---|
[614] | 2979 | ker_buf_paddr = (ker_buf_desc & 0xFFFFFFFFFC000000ULL) >> 20; |
---|
[449] | 2980 | |
---|
[494] | 2981 | // move one container |
---|
| 2982 | if ( is_rx ) // RX transfer |
---|
[459] | 2983 | { |
---|
| 2984 | // inval kernel buffer in L2 before read in L2 |
---|
[614] | 2985 | _mmc_inval( ker_buf_paddr, NIC_CONTAINER_SIZE ); |
---|
[449] | 2986 | |
---|
[459] | 2987 | // transfer data from kernel buffer to user buffer |
---|
[614] | 2988 | _physical_memcpy( usr_buf_paddr, |
---|
| 2989 | ker_buf_paddr, |
---|
[478] | 2990 | NIC_CONTAINER_SIZE ); |
---|
| 2991 | #if GIET_DEBUG_NIC |
---|
[714] | 2992 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 2993 | "thread %x transfer kernel buffer %l to user buffer %l\n", |
---|
| 2994 | _get_proctime() , trdid , ker_buf_paddr , usr_buf_paddr ); |
---|
[478] | 2995 | #endif |
---|
[449] | 2996 | |
---|
[459] | 2997 | } |
---|
[494] | 2998 | else // TX transfer |
---|
[459] | 2999 | { |
---|
| 3000 | // transfer data from user buffer to kernel buffer |
---|
[614] | 3001 | _physical_memcpy( ker_buf_paddr, |
---|
| 3002 | usr_buf_paddr, |
---|
[478] | 3003 | NIC_CONTAINER_SIZE ); |
---|
[449] | 3004 | |
---|
[459] | 3005 | // sync kernel buffer in L2 after write in L2 |
---|
[614] | 3006 | _mmc_sync( ker_buf_paddr, NIC_CONTAINER_SIZE ); |
---|
[478] | 3007 | |
---|
| 3008 | #if GIET_DEBUG_NIC |
---|
[714] | 3009 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 3010 | "thread %x transfer user buffer %l to kernel buffer %l\n", |
---|
| 3011 | _get_proctime() , trdid , usr_buf_paddr , ker_buf_paddr ); |
---|
[478] | 3012 | #endif |
---|
| 3013 | |
---|
[459] | 3014 | } |
---|
| 3015 | |
---|
[478] | 3016 | // update kernel chbuf status |
---|
[614] | 3017 | if ( is_rx ) _physical_write ( ker_sts_paddr, 0 ); |
---|
| 3018 | else _physical_write ( ker_sts_paddr, 0x1 ); |
---|
[459] | 3019 | |
---|
| 3020 | // sync kernel chbuf in L2 after write in L2 |
---|
[614] | 3021 | _mmc_sync( ker_sts_paddr, 4 ); |
---|
[459] | 3022 | |
---|
| 3023 | #if GIET_DEBUG_NIC |
---|
[714] | 3024 | _printf("\n[DEBUG NIC] _sys_nic_move() at cycle %d\n" |
---|
| 3025 | "thread %x exit\n", |
---|
| 3026 | _get_proctime() , trdid ); |
---|
[459] | 3027 | #endif |
---|
| 3028 | |
---|
[714] | 3029 | return SYSCALL_OK; |
---|
[449] | 3030 | } // end _sys_nic_move() |
---|
[440] | 3031 | |
---|
[494] | 3032 | |
---|
[709] | 3033 | /////////////////////////////////////// |
---|
| 3034 | int _sys_nic_stop( unsigned int is_rx ) |
---|
[440] | 3035 | { |
---|
[709] | 3036 | unsigned int trdid = _get_context_slot( CTX_TRDID_ID ); |
---|
| 3037 | |
---|
[449] | 3038 | unsigned int nic_channel; |
---|
| 3039 | unsigned int cma_channel; |
---|
[440] | 3040 | |
---|
[449] | 3041 | // get NIC channel index and CMA channel index |
---|
| 3042 | if ( is_rx ) |
---|
[440] | 3043 | { |
---|
[449] | 3044 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 3045 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
---|
[440] | 3046 | } |
---|
[449] | 3047 | else |
---|
| 3048 | { |
---|
| 3049 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
| 3050 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
---|
| 3051 | } |
---|
[440] | 3052 | |
---|
[494] | 3053 | // check NIC and CMA channels index |
---|
[709] | 3054 | if ( nic_channel >= NB_NIC_CHANNELS ) |
---|
[440] | 3055 | { |
---|
[709] | 3056 | _printf("\n[GIET_ERROR] in _sys_nic_stop() : " |
---|
[714] | 3057 | "NIC channel non allocated for thread %x\n", trdid ); |
---|
| 3058 | |
---|
| 3059 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3060 | } |
---|
[449] | 3061 | if ( cma_channel >= NB_CMA_CHANNELS ) |
---|
[440] | 3062 | { |
---|
[709] | 3063 | _printf("\n[GIET_ERROR] in _sys_nic_stop() : " |
---|
[714] | 3064 | "CMA channel non allocated for thread %x\n", trdid ); |
---|
| 3065 | |
---|
| 3066 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3067 | } |
---|
| 3068 | |
---|
[709] | 3069 | // desactivates the CMA channel |
---|
[725] | 3070 | _cma_set_register( cma_channel, CHBUF_RUN , MODE_IDLE ); |
---|
[709] | 3071 | |
---|
| 3072 | // wait until CMA channel IDLE |
---|
| 3073 | unsigned int volatile status; |
---|
| 3074 | do |
---|
| 3075 | { |
---|
| 3076 | status = _cma_get_register( cma_channel, CHBUF_STATUS ); |
---|
[714] | 3077 | } |
---|
| 3078 | while ( status ); |
---|
[709] | 3079 | |
---|
[449] | 3080 | // desactivates the NIC channel |
---|
| 3081 | _nic_channel_stop( nic_channel, is_rx ); |
---|
[440] | 3082 | |
---|
[714] | 3083 | return SYSCALL_OK; |
---|
[494] | 3084 | } // end _sys_nic_stop() |
---|
[440] | 3085 | |
---|
[459] | 3086 | //////////////////////////////////////// |
---|
[709] | 3087 | int _sys_nic_clear( unsigned int is_rx ) |
---|
[459] | 3088 | { |
---|
[709] | 3089 | unsigned int trdid = _get_context_slot( CTX_TRDID_ID ); |
---|
[459] | 3090 | |
---|
[709] | 3091 | unsigned int channel; |
---|
| 3092 | |
---|
[459] | 3093 | // get NIC channel |
---|
[709] | 3094 | if ( is_rx ) channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 3095 | else channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
[459] | 3096 | |
---|
[709] | 3097 | if ( channel >= NB_NIC_CHANNELS ) |
---|
[459] | 3098 | { |
---|
[709] | 3099 | _printf("\n[GIET_ERROR] in _sys_nic_clear() : " |
---|
[714] | 3100 | "NIC channel non allocated for thread %x\n", trdid ); |
---|
| 3101 | |
---|
| 3102 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[459] | 3103 | } |
---|
| 3104 | |
---|
| 3105 | if ( is_rx ) |
---|
| 3106 | { |
---|
| 3107 | _nic_set_global_register( NIC_G_NPKT_RX_G2S_RECEIVED , 0 ); |
---|
| 3108 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL , 0 ); |
---|
| 3109 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_BIG , 0 ); |
---|
| 3110 | _nic_set_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL , 0 ); |
---|
| 3111 | _nic_set_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL , 0 ); |
---|
| 3112 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_RECEIVED , 0 ); |
---|
| 3113 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST , 0 ); |
---|
| 3114 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL , 0 ); |
---|
| 3115 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL , 0 ); |
---|
| 3116 | } |
---|
| 3117 | else |
---|
| 3118 | { |
---|
| 3119 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED , 0 ); |
---|
| 3120 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TRANSMIT , 0 ); |
---|
| 3121 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG , 0 ); |
---|
| 3122 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL , 0 ); |
---|
| 3123 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL , 0 ); |
---|
| 3124 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS , 0 ); |
---|
| 3125 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST , 0 ); |
---|
| 3126 | } |
---|
[714] | 3127 | return SYSCALL_OK; |
---|
[494] | 3128 | } // en _sys_nic_clear() |
---|
[459] | 3129 | |
---|
| 3130 | //////////////////////////////////////// |
---|
[709] | 3131 | int _sys_nic_stats( unsigned int is_rx ) |
---|
[459] | 3132 | { |
---|
[709] | 3133 | unsigned int trdid = _get_context_slot( CTX_TRDID_ID ); |
---|
| 3134 | |
---|
[459] | 3135 | unsigned int nic_channel; |
---|
| 3136 | |
---|
| 3137 | // get NIC channel |
---|
| 3138 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
---|
| 3139 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
---|
| 3140 | |
---|
[709] | 3141 | if ( nic_channel >= NB_NIC_CHANNELS ) |
---|
[459] | 3142 | { |
---|
[709] | 3143 | _printf("\n[GIET_ERROR] in _sys_nic_stats() : " |
---|
[714] | 3144 | "NIC channel non allocated for thread %x\n", trdid ); |
---|
| 3145 | |
---|
| 3146 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[459] | 3147 | } |
---|
| 3148 | |
---|
| 3149 | if ( is_rx ) |
---|
| 3150 | { |
---|
| 3151 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_RX_G2S_RECEIVED ); |
---|
| 3152 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL ); |
---|
| 3153 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_BIG ); |
---|
| 3154 | unsigned int fifo_full = _nic_get_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL ); |
---|
| 3155 | unsigned int crc_fail = _nic_get_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL ); |
---|
| 3156 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST ); |
---|
| 3157 | unsigned int dst_fail = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL ); |
---|
| 3158 | unsigned int ch_full = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL ); |
---|
| 3159 | |
---|
| 3160 | _printf("\n### Network Controller RX Statistics ###\n" |
---|
| 3161 | "- packets received : %d\n" |
---|
| 3162 | "- too small : %d\n" |
---|
| 3163 | "- too big : %d\n" |
---|
| 3164 | "- fifo full : %d\n" |
---|
| 3165 | "- crc fail : %d\n" |
---|
| 3166 | "- dst mac fail : %d\n" |
---|
| 3167 | "- channel full : %d\n" |
---|
| 3168 | "- broadcast : %d\n", |
---|
| 3169 | received, |
---|
| 3170 | too_small, |
---|
| 3171 | too_big, |
---|
| 3172 | fifo_full, |
---|
| 3173 | crc_fail, |
---|
| 3174 | dst_fail, |
---|
| 3175 | ch_full, |
---|
| 3176 | broadcast ); |
---|
| 3177 | } |
---|
| 3178 | else |
---|
| 3179 | { |
---|
| 3180 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED ); |
---|
| 3181 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG ); |
---|
| 3182 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL ); |
---|
| 3183 | unsigned int src_fail = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL ); |
---|
| 3184 | unsigned int bypass = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS ); |
---|
| 3185 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST ); |
---|
| 3186 | |
---|
| 3187 | _printf("\n### Network Controller TX Statistics ###\n" |
---|
| 3188 | "- packets received : %d\n" |
---|
| 3189 | "- too small : %d\n" |
---|
| 3190 | "- too big : %d\n" |
---|
| 3191 | "- src mac fail : %d\n" |
---|
| 3192 | "- bypass : %d\n" |
---|
| 3193 | "- broadcast : %d\n", |
---|
| 3194 | received, |
---|
| 3195 | too_big, |
---|
| 3196 | too_small, |
---|
| 3197 | src_fail, |
---|
| 3198 | bypass, |
---|
| 3199 | broadcast ); |
---|
| 3200 | } |
---|
[714] | 3201 | return SYSCALL_OK; |
---|
[494] | 3202 | } // end _sys_nic_stats() |
---|
[459] | 3203 | |
---|
[754] | 3204 | #endif // if NB_NIC_CHANNELS && NB_CMA_CHANNELS |
---|
[709] | 3205 | |
---|
[440] | 3206 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 3207 | // FBF related syscall handlers |
---|
| 3208 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 3209 | |
---|
[714] | 3210 | ////////////////////////////////////// |
---|
| 3211 | int _sys_fbf_size( unsigned int* width, |
---|
| 3212 | unsigned int* height ) |
---|
| 3213 | { |
---|
| 3214 | if ( USE_FBF == 0 ) |
---|
| 3215 | { |
---|
| 3216 | *width = 0; |
---|
| 3217 | *height = 0; |
---|
| 3218 | } |
---|
| 3219 | else |
---|
| 3220 | { |
---|
| 3221 | *width = FBUF_X_SIZE; |
---|
| 3222 | *height = FBUF_Y_SIZE; |
---|
| 3223 | } |
---|
| 3224 | |
---|
| 3225 | return SYSCALL_OK; |
---|
| 3226 | } |
---|
| 3227 | |
---|
| 3228 | //////////////////// |
---|
| 3229 | int _sys_fbf_alloc() |
---|
| 3230 | { |
---|
| 3231 | mapping_header_t *header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 3232 | mapping_vspace_t *vspace = _get_vspace_base(header); |
---|
| 3233 | mapping_thread_t *thread = _get_thread_base(header); |
---|
| 3234 | |
---|
| 3235 | // compute number of users |
---|
| 3236 | unsigned int vsid = _get_context_slot(CTX_VSID_ID); |
---|
| 3237 | unsigned int users = vspace[vsid].threads; |
---|
| 3238 | |
---|
| 3239 | // access FBF allocator |
---|
| 3240 | // register it in all threads contexts |
---|
| 3241 | if ( _atomic_test_and_set( &_fbf_alloc , users ) == 0 ) // FBF available |
---|
| 3242 | { |
---|
| 3243 | unsigned int min = vspace[vsid].thread_offset; |
---|
| 3244 | unsigned int max = min + users; |
---|
| 3245 | unsigned int tid; |
---|
| 3246 | for ( tid = min ; tid < max ; tid++ ) |
---|
| 3247 | { |
---|
| 3248 | unsigned int y_size = header->y_size; |
---|
| 3249 | unsigned int cid = thread[tid].clusterid; |
---|
| 3250 | unsigned int x = cid / y_size; |
---|
| 3251 | unsigned int y = cid % y_size; |
---|
| 3252 | unsigned int p = thread[tid].proclocid; |
---|
| 3253 | unsigned int ltid = thread[tid].ltid; |
---|
| 3254 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
| 3255 | _atomic_or( &psched->context[ltid].slot[CTX_LOCKS_ID] , LOCKS_MASK_FBF ); |
---|
| 3256 | } |
---|
| 3257 | return SYSCALL_OK; |
---|
| 3258 | } |
---|
| 3259 | else // FBF already allocated |
---|
| 3260 | { |
---|
| 3261 | return SYSCALL_SHARED_PERIPHERAL_BUSY; |
---|
| 3262 | } |
---|
| 3263 | } |
---|
| 3264 | |
---|
| 3265 | ////////////////////// |
---|
| 3266 | int _sys_fbf_release() // not a syscall: used by _ctx_kill_thread() |
---|
| 3267 | { |
---|
| 3268 | // get calling thread scheduler, ltid and trdid |
---|
| 3269 | static_scheduler_t* psched = _get_sched(); |
---|
| 3270 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3271 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3272 | |
---|
| 3273 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3274 | { |
---|
| 3275 | _printf("\n[GIET ERROR] in _sys_fbf_release() : " |
---|
| 3276 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3277 | |
---|
| 3278 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3279 | } |
---|
| 3280 | |
---|
| 3281 | // decrement FBF allocator |
---|
| 3282 | // reset the calling thread context |
---|
| 3283 | _atomic_increment( &_fbf_alloc , 0xFFFFFFFF ); |
---|
| 3284 | _atomic_and( &psched->context[ltid].slot[CTX_LOCKS_ID] , ~LOCKS_MASK_FBF ); |
---|
| 3285 | |
---|
| 3286 | return SYSCALL_OK; |
---|
| 3287 | } |
---|
| 3288 | |
---|
[440] | 3289 | ///////////////////////////////////////////// |
---|
| 3290 | int _sys_fbf_sync_write( unsigned int offset, |
---|
| 3291 | void* buffer, |
---|
| 3292 | unsigned int length ) |
---|
| 3293 | { |
---|
[714] | 3294 | // get calling thread scheduler, ltid and trdid |
---|
| 3295 | static_scheduler_t* psched = _get_sched(); |
---|
| 3296 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3297 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3298 | |
---|
| 3299 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3300 | { |
---|
| 3301 | _printf("\n[GIET ERROR] in _sys_fbf_release() : " |
---|
| 3302 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3303 | |
---|
| 3304 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3305 | } |
---|
| 3306 | |
---|
[440] | 3307 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
| 3308 | memcpy( fbf_address, buffer, length); |
---|
| 3309 | |
---|
[714] | 3310 | return SYSCALL_OK; |
---|
[440] | 3311 | } |
---|
| 3312 | |
---|
| 3313 | ///////////////////////////////////////////// |
---|
| 3314 | int _sys_fbf_sync_read( unsigned int offset, |
---|
| 3315 | void* buffer, |
---|
| 3316 | unsigned int length ) |
---|
| 3317 | { |
---|
[714] | 3318 | // get calling thread scheduler, ltid and trdid |
---|
| 3319 | static_scheduler_t* psched = _get_sched(); |
---|
| 3320 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3321 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3322 | |
---|
| 3323 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3324 | { |
---|
| 3325 | _printf("\n[GIET ERROR] in _sys_fbf_release() : " |
---|
| 3326 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3327 | |
---|
| 3328 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3329 | } |
---|
| 3330 | |
---|
[440] | 3331 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
---|
| 3332 | memcpy( buffer, fbf_address, length); |
---|
| 3333 | |
---|
[714] | 3334 | return SYSCALL_OK; |
---|
[440] | 3335 | } |
---|
| 3336 | |
---|
[754] | 3337 | #if NB_CMA_CHANNELS |
---|
| 3338 | |
---|
[725] | 3339 | //////////////////////////////////////////// |
---|
| 3340 | int _sys_fbf_cma_alloc( unsigned int nbufs ) |
---|
[440] | 3341 | { |
---|
[725] | 3342 | // compute trdid and vsid for the calling thread |
---|
| 3343 | unsigned int vsid = _get_context_slot( CTX_VSID_ID ); |
---|
[709] | 3344 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3345 | |
---|
[699] | 3346 | if ( _get_context_slot( CTX_CMA_FB_ID ) < NB_CMA_CHANNELS ) |
---|
| 3347 | { |
---|
[709] | 3348 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : " |
---|
| 3349 | "CMA channel already allocated for thread %x\n", trdid ); |
---|
[714] | 3350 | return SYSCALL_CHANNEL_ALREADY_ALLOCATED; |
---|
[699] | 3351 | } |
---|
[440] | 3352 | |
---|
[725] | 3353 | // compute number of threads in vspace from mapping |
---|
| 3354 | mapping_header_t *header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 3355 | mapping_vspace_t *vspace = _get_vspace_base(header); |
---|
| 3356 | mapping_thread_t *thread = _get_thread_base(header); |
---|
| 3357 | unsigned int first = vspace[vsid].thread_offset; |
---|
| 3358 | unsigned int threads = vspace[vsid].threads; |
---|
| 3359 | |
---|
[709] | 3360 | // get a CMA channel |
---|
[699] | 3361 | unsigned int channel; |
---|
| 3362 | for ( channel = 0 ; channel < NB_CMA_CHANNELS ; channel++ ) |
---|
| 3363 | { |
---|
[709] | 3364 | unsigned int* palloc = &_cma_channel_alloc[channel]; |
---|
[725] | 3365 | if ( _atomic_test_and_set( palloc , threads ) == 0 ) break; |
---|
[699] | 3366 | } |
---|
[725] | 3367 | |
---|
[440] | 3368 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3369 | { |
---|
[699] | 3370 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : no CMA channel available\n"); |
---|
[714] | 3371 | return SYSCALL_NO_CHANNEL_AVAILABLE; |
---|
[440] | 3372 | } |
---|
[725] | 3373 | |
---|
| 3374 | // check nbufs argument |
---|
| 3375 | if ( nbufs > 256 ) |
---|
[440] | 3376 | { |
---|
[725] | 3377 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : nbufs larger than 256\n"); |
---|
| 3378 | return SYSCALL_ILLEGAL_ARGUMENT; |
---|
| 3379 | } |
---|
[714] | 3380 | |
---|
[725] | 3381 | // loop on all threads to register channel in thread contexts |
---|
| 3382 | unsigned int tid; |
---|
| 3383 | for ( tid = first ; tid < (first + threads) ; tid++ ) |
---|
| 3384 | { |
---|
| 3385 | unsigned int y_size = header->y_size; |
---|
| 3386 | unsigned int cid = thread[tid].clusterid; |
---|
| 3387 | unsigned int x = cid / y_size; |
---|
| 3388 | unsigned int y = cid % y_size; |
---|
| 3389 | unsigned int p = thread[tid].proclocid; |
---|
| 3390 | unsigned int ltid = thread[tid].ltid; |
---|
| 3391 | static_scheduler_t* psched = (static_scheduler_t*)_schedulers[x][y][p]; |
---|
| 3392 | psched->context[ltid].slot[CTX_CMA_FB_ID] = channel; |
---|
[440] | 3393 | } |
---|
[725] | 3394 | |
---|
| 3395 | unsigned int vaddr; |
---|
| 3396 | unsigned int flags; |
---|
| 3397 | |
---|
| 3398 | // compute frame buffer physical addresses |
---|
| 3399 | vaddr = (unsigned int)SEG_FBF_BASE; |
---|
| 3400 | unsigned long long fbf_buf_paddr = _v2p_translate( vaddr , &flags ); |
---|
| 3401 | |
---|
| 3402 | // initialize the FBF chbuf |
---|
| 3403 | // we don't register a status address in the fbf_desc, because |
---|
| 3404 | // the CMA does not test the status for the frame buffer (no synchro) |
---|
| 3405 | _fbf_ker_chbuf.nbufs = nbufs; |
---|
| 3406 | _fbf_ker_chbuf.fbf_desc = (((fbf_buf_paddr & 0xFFFFFFFFFFFULL) >> 6 ) << 26); |
---|
| 3407 | |
---|
| 3408 | // register FBF chbuf physical address |
---|
| 3409 | vaddr = (unsigned int)(&_fbf_ker_chbuf); |
---|
| 3410 | _fbf_chbuf_paddr = _v2p_translate( vaddr , &flags ); |
---|
| 3411 | |
---|
| 3412 | #if GIET_DEBUG_FBF_CMA |
---|
| 3413 | _printf("\n[FBF_CMA DEBUG] _sys_fbf_cma_alloc()\n" |
---|
| 3414 | " - channel = %d\n" |
---|
| 3415 | " - vaddr(_ker_fbf_chbuf) = %x\n" |
---|
| 3416 | " - paddr(_ker_fbf_chbuf) = %l\n" |
---|
| 3417 | " - nbufs = %d\n" |
---|
| 3418 | " - fbf_desc = %l\n", |
---|
| 3419 | channel , vaddr , _fbf_chbuf_paddr , nbufs , _fbf_ker_chbuf.fbf_desc ); |
---|
| 3420 | #endif |
---|
| 3421 | |
---|
| 3422 | return SYSCALL_OK; |
---|
[440] | 3423 | } // end sys_fbf_cma_alloc() |
---|
| 3424 | |
---|
[709] | 3425 | ////////////////////////// |
---|
[725] | 3426 | int _sys_fbf_cma_release() // Not a syscall : used by _ctx_kill_thread() |
---|
[700] | 3427 | { |
---|
| 3428 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
[709] | 3429 | unsigned int trdid = _get_thread_trdid(); |
---|
[614] | 3430 | |
---|
[700] | 3431 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3432 | { |
---|
[709] | 3433 | _printf("\n[GIET_ERROR] in _sys_fbf_cma_release() : " |
---|
[714] | 3434 | "CMA_FB channel already released for thread %x\n", trdid ); |
---|
| 3435 | |
---|
| 3436 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[700] | 3437 | } |
---|
| 3438 | |
---|
[725] | 3439 | if ( _cma_channel_alloc[channel] == 1 ) // the calling thread is the last user |
---|
| 3440 | { |
---|
| 3441 | // stop the CMA transfer |
---|
| 3442 | _sys_fbf_cma_stop(); |
---|
[700] | 3443 | |
---|
[725] | 3444 | // reset the CMA channel allocator |
---|
| 3445 | _cma_channel_alloc[channel] = 0; |
---|
| 3446 | } |
---|
| 3447 | else // not the last user |
---|
| 3448 | { |
---|
| 3449 | // atomically decrement the CMA channel allocator |
---|
| 3450 | _atomic_increment( &_cma_channel_alloc[channel] , -1 ); |
---|
| 3451 | } |
---|
| 3452 | |
---|
| 3453 | // reset CTX_CMA_FB_ID slot in calling thread context |
---|
[709] | 3454 | _set_context_slot( CTX_CMA_FB_ID, 0xFFFFFFFF ); |
---|
[700] | 3455 | |
---|
[714] | 3456 | return SYSCALL_OK; |
---|
[725] | 3457 | } // end _sys_fbf_cma_release() |
---|
[700] | 3458 | |
---|
[648] | 3459 | /////////////////////////////////////////////////// |
---|
[725] | 3460 | int _sys_fbf_cma_init_buf( unsigned int index, |
---|
| 3461 | void* buf_vaddr, |
---|
| 3462 | void* sts_vaddr ) |
---|
[440] | 3463 | { |
---|
| 3464 | unsigned int vaddr; // virtual address |
---|
[528] | 3465 | unsigned int flags; // for _v2p_translate() |
---|
[725] | 3466 | unsigned long long buf_paddr; // user buffer physical address |
---|
| 3467 | unsigned long long sts_paddr; // user status physical address |
---|
[440] | 3468 | |
---|
[714] | 3469 | // get calling thread scheduler, ltid and trdid |
---|
| 3470 | static_scheduler_t* psched = _get_sched(); |
---|
| 3471 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3472 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3473 | |
---|
| 3474 | // check FBF allocated |
---|
| 3475 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3476 | { |
---|
| 3477 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
| 3478 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3479 | |
---|
| 3480 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3481 | } |
---|
| 3482 | |
---|
[440] | 3483 | // get channel index |
---|
[449] | 3484 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
[440] | 3485 | |
---|
| 3486 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3487 | { |
---|
[714] | 3488 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
| 3489 | "CMA channel non allocated to thread %x\n", trdid ); |
---|
| 3490 | |
---|
| 3491 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3492 | } |
---|
| 3493 | |
---|
| 3494 | #if GIET_DEBUG_FBF_CMA |
---|
[714] | 3495 | _printf("\n[FBF_CMA DEBUG] _sys_fbf_cma_init_buf()\n" |
---|
[725] | 3496 | " - channel = %d / index = %d\n" |
---|
| 3497 | " - buf vaddr = %x\n" |
---|
| 3498 | " - sts vaddr = %x\n", |
---|
| 3499 | channel, index, |
---|
| 3500 | (unsigned int)buf_vaddr, |
---|
| 3501 | (unsigned int)sts_vaddr ); |
---|
[440] | 3502 | #endif |
---|
| 3503 | |
---|
[725] | 3504 | // checking index argument |
---|
| 3505 | if ( index >= _fbf_ker_chbuf.nbufs ) |
---|
[440] | 3506 | { |
---|
[714] | 3507 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
[725] | 3508 | "user buffer index too large %x\n", trdid ); |
---|
[714] | 3509 | |
---|
[725] | 3510 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3511 | } |
---|
| 3512 | |
---|
[725] | 3513 | // checking user buffer and status addresses alignment |
---|
| 3514 | if ( ((unsigned int)buf_vaddr & 0x3F) || ((unsigned int)sts_vaddr & 0x3F) ) |
---|
[614] | 3515 | { |
---|
[714] | 3516 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
[725] | 3517 | "user buffer or status not aligned for thread %x\n", trdid ); |
---|
[714] | 3518 | |
---|
| 3519 | return SYSCALL_ADDRESS_NON_ALIGNED; |
---|
[614] | 3520 | } |
---|
| 3521 | |
---|
[725] | 3522 | // Compute user buffer and status physical addresses |
---|
| 3523 | vaddr = (unsigned int)buf_vaddr; |
---|
| 3524 | buf_paddr = _v2p_translate( vaddr , &flags ); |
---|
[440] | 3525 | if ((flags & PTE_U) == 0) |
---|
| 3526 | { |
---|
[714] | 3527 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
[725] | 3528 | "buffer not in user space for thread %x\n", trdid ); |
---|
[714] | 3529 | |
---|
| 3530 | return SYSCALL_ADDRESS_NON_USER_ACCESSIBLE; |
---|
[440] | 3531 | } |
---|
| 3532 | |
---|
[725] | 3533 | vaddr = (unsigned int)sts_vaddr; |
---|
| 3534 | sts_paddr = _v2p_translate( vaddr , &flags ); |
---|
[614] | 3535 | if ((flags & PTE_U) == 0) |
---|
| 3536 | { |
---|
[714] | 3537 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
[725] | 3538 | "status not in user space for thread %x\n", trdid); |
---|
[714] | 3539 | |
---|
| 3540 | return SYSCALL_ADDRESS_NON_USER_ACCESSIBLE; |
---|
[614] | 3541 | } |
---|
| 3542 | |
---|
[725] | 3543 | // check user buffer and user status in same cluster |
---|
| 3544 | if ( (buf_paddr & 0xFF00000000ULL) != (sts_paddr & 0xFF00000000ULL) ) |
---|
[440] | 3545 | { |
---|
[714] | 3546 | _printf("\n[GIET ERROR] in _sys_fbf_cma_init_buf() : " |
---|
[725] | 3547 | "user status and buffer not in same cluster for thread %x\n", trdid); |
---|
[714] | 3548 | |
---|
| 3549 | return SYSCALL_ADDRESS_NON_USER_ACCESSIBLE; |
---|
[440] | 3550 | } |
---|
| 3551 | |
---|
[725] | 3552 | // initialize _fbf_ker_chbuf.usr_desc[index] |
---|
| 3553 | _fbf_ker_chbuf.usr_desc[index] = ((sts_paddr & 0xFFFFFFFFULL) >> 6) + |
---|
| 3554 | (((buf_paddr & 0xFFFFFFFFFFULL) >> 6 ) << 26); |
---|
[714] | 3555 | |
---|
[614] | 3556 | #if GIET_DEBUG_FBF_CMA |
---|
[725] | 3557 | _printf(" - buf paddr = %l\n" |
---|
| 3558 | " - sts paddr = %l\n" |
---|
| 3559 | " - usr_desc[%d] = %l\n", |
---|
| 3560 | buf_paddr, |
---|
| 3561 | sts_paddr, |
---|
| 3562 | index , _fbf_ker_chbuf.usr_desc[index] ); |
---|
[614] | 3563 | #endif |
---|
| 3564 | |
---|
[714] | 3565 | return SYSCALL_OK; |
---|
[614] | 3566 | |
---|
| 3567 | } // end sys_fbf_cma_init_buf() |
---|
| 3568 | |
---|
[725] | 3569 | //////////////////////// |
---|
| 3570 | int _sys_fbf_cma_start() |
---|
[614] | 3571 | { |
---|
[714] | 3572 | // get calling thread scheduler, ltid and trdid |
---|
| 3573 | static_scheduler_t* psched = _get_sched(); |
---|
| 3574 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3575 | unsigned int trdid = _get_thread_trdid(); |
---|
[614] | 3576 | |
---|
[714] | 3577 | // check FBF allocated |
---|
| 3578 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3579 | { |
---|
| 3580 | _printf("\n[GIET ERROR] in _sys_fbf_release() : " |
---|
| 3581 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3582 | |
---|
| 3583 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3584 | } |
---|
| 3585 | |
---|
[725] | 3586 | // get CMA channel index |
---|
[614] | 3587 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
| 3588 | |
---|
| 3589 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3590 | { |
---|
[714] | 3591 | _printf("\n[GIET ERROR] in _fbf_cma_start() : " |
---|
| 3592 | "CMA channel non allocated\n"); |
---|
| 3593 | |
---|
| 3594 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[614] | 3595 | } |
---|
| 3596 | |
---|
| 3597 | // check buffers initialization |
---|
[725] | 3598 | if ( _fbf_ker_chbuf.nbufs == 0 ) |
---|
[614] | 3599 | { |
---|
[725] | 3600 | _printf("\n[GIET ERROR] in _sys_fbf_cma_start(): " |
---|
| 3601 | "FBF chbuf not initialized for thread %x\n", trdid ); |
---|
[714] | 3602 | |
---|
| 3603 | return SYSCALL_MISSING_INITIALISATION; |
---|
[614] | 3604 | } |
---|
| 3605 | |
---|
[725] | 3606 | // synchronize FBF chbuf that will be read by CMA peripheral |
---|
[440] | 3607 | if ( USE_IOB ) |
---|
| 3608 | { |
---|
[505] | 3609 | // SYNC request for fbf_chbuf descriptor |
---|
[725] | 3610 | _mmc_sync( _fbf_chbuf_paddr , sizeof( fbf_chbuf_t ) ); |
---|
[440] | 3611 | } |
---|
| 3612 | |
---|
[505] | 3613 | // start CMA transfer |
---|
[725] | 3614 | unsigned long long paddr = _fbf_chbuf_paddr; |
---|
| 3615 | unsigned int dst_chbuf_paddr_lsb = (unsigned int)(paddr & 0xFFFFFFFF); |
---|
| 3616 | unsigned int dst_chbuf_paddr_ext = (unsigned int)(paddr >> 32); |
---|
| 3617 | unsigned int src_chbuf_paddr_lsb = dst_chbuf_paddr_lsb + 8; |
---|
| 3618 | unsigned int src_chbuf_paddr_ext = dst_chbuf_paddr_ext; |
---|
[505] | 3619 | |
---|
[725] | 3620 | #if GIET_DEBUG_FBF_CMA |
---|
| 3621 | _printf("\n[FBF_CMA DEBUG] _sys_fbf_cma_start()\n" |
---|
| 3622 | " - src_chbuf_paddr_lsb = %x\n" |
---|
| 3623 | " - src_chbuf_paddr_ext = %x\n" |
---|
| 3624 | " - src_chbuf_nbufs = %d\n" |
---|
| 3625 | " - dst_chbuf_paddr_lsb = %x\n" |
---|
| 3626 | " - dst_chbuf_paddr_ext = %x\n" |
---|
| 3627 | " - dst_chbuf_nbufs = 1 \n" |
---|
| 3628 | " - buffer_size = %d\n", |
---|
| 3629 | src_chbuf_paddr_lsb, |
---|
| 3630 | src_chbuf_paddr_ext, |
---|
| 3631 | _fbf_ker_chbuf.nbufs, |
---|
| 3632 | dst_chbuf_paddr_lsb, |
---|
| 3633 | dst_chbuf_paddr_ext, |
---|
| 3634 | FBUF_X_SIZE * FBUF_Y_SIZE ); |
---|
| 3635 | #endif |
---|
| 3636 | |
---|
[505] | 3637 | _cma_set_register( channel, CHBUF_SRC_DESC , src_chbuf_paddr_lsb ); |
---|
| 3638 | _cma_set_register( channel, CHBUF_SRC_EXT , src_chbuf_paddr_ext ); |
---|
[725] | 3639 | _cma_set_register( channel, CHBUF_SRC_NBUFS, _fbf_ker_chbuf.nbufs ); |
---|
[505] | 3640 | _cma_set_register( channel, CHBUF_DST_DESC , dst_chbuf_paddr_lsb ); |
---|
| 3641 | _cma_set_register( channel, CHBUF_DST_EXT , dst_chbuf_paddr_ext ); |
---|
| 3642 | _cma_set_register( channel, CHBUF_DST_NBUFS, 1 ); |
---|
[725] | 3643 | _cma_set_register( channel, CHBUF_BUF_SIZE , FBUF_X_SIZE*FBUF_Y_SIZE ); |
---|
[733] | 3644 | _cma_set_register( channel, CHBUF_PERIOD , 1000 ); |
---|
[725] | 3645 | _cma_set_register( channel, CHBUF_RUN , MODE_NO_DST_SYNC ); |
---|
[505] | 3646 | |
---|
[714] | 3647 | return SYSCALL_OK; |
---|
[440] | 3648 | |
---|
| 3649 | } // end _sys_fbf_cma_start() |
---|
| 3650 | |
---|
[725] | 3651 | //////////////////////////////////////////// |
---|
| 3652 | int _sys_fbf_cma_check( unsigned int index ) |
---|
[440] | 3653 | { |
---|
[714] | 3654 | // get calling thread scheduler, ltid and trdid |
---|
| 3655 | static_scheduler_t* psched = _get_sched(); |
---|
| 3656 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3657 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3658 | |
---|
| 3659 | // check FBF allocated |
---|
| 3660 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
| 3661 | { |
---|
[725] | 3662 | _printf("\n[GIET ERROR] in _sys_fbf_cma_check() : " |
---|
[714] | 3663 | "FBF not allocated to thread %x\n", trdid ); |
---|
| 3664 | |
---|
| 3665 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3666 | } |
---|
| 3667 | |
---|
[440] | 3668 | // get channel index |
---|
[449] | 3669 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
[440] | 3670 | |
---|
| 3671 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3672 | { |
---|
[725] | 3673 | _printf("\n[GIET ERROR] in _sys_fbf_cma_check() : " |
---|
| 3674 | "CMA channel non allocated to thread %x\n", trdid ); |
---|
[714] | 3675 | |
---|
| 3676 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3677 | } |
---|
| 3678 | |
---|
[725] | 3679 | // check buffer index |
---|
| 3680 | if ( index >= _fbf_ker_chbuf.nbufs ) |
---|
| 3681 | { |
---|
| 3682 | _printf("\n[GIET ERROR] in _sys_fbf_cma_check() : " |
---|
| 3683 | "buffer index too large for thread %x\n", trdid ); |
---|
[505] | 3684 | |
---|
[725] | 3685 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3686 | } |
---|
| 3687 | |
---|
| 3688 | // compute user buffer status physical addresses |
---|
| 3689 | unsigned long long usr_sts_paddr; |
---|
| 3690 | fbf_chbuf_t* pdesc = &_fbf_ker_chbuf; |
---|
| 3691 | usr_sts_paddr = ((pdesc->usr_desc[index] & 0xFFF0000000000000ULL) >> 20) + |
---|
| 3692 | ((pdesc->usr_desc[index] & 0x3FFFFFFULL) << 6); |
---|
| 3693 | |
---|
[440] | 3694 | #if GIET_DEBUG_FBF_CMA |
---|
[725] | 3695 | _printf("\n[FBF_CMA DEBUG] enters _sys_fbf_cma_check()\n" |
---|
[614] | 3696 | " - cma channel = %d\n" |
---|
| 3697 | " - buffer index = %d\n" |
---|
[725] | 3698 | " - usr_desc value = %l\n" |
---|
| 3699 | " - fbf_desc value = %l\n" |
---|
| 3700 | " - usr status paddr = %l\n", |
---|
| 3701 | channel, |
---|
| 3702 | index, |
---|
| 3703 | _fbf_ker_chbuf.usr_desc[index], |
---|
| 3704 | _fbf_ker_chbuf.fbf_desc, |
---|
| 3705 | usr_sts_paddr ); |
---|
[440] | 3706 | #endif |
---|
| 3707 | |
---|
[725] | 3708 | // waiting user buffer released by the CMA component) |
---|
| 3709 | unsigned int full; |
---|
| 3710 | do |
---|
| 3711 | { |
---|
| 3712 | // INVAL L2 cache copy of user buffer status |
---|
| 3713 | // because it is modified in RAM by the CMA component |
---|
| 3714 | _mmc_inval( usr_sts_paddr , 4 ); |
---|
[614] | 3715 | |
---|
[725] | 3716 | full = _physical_read( usr_sts_paddr ); |
---|
| 3717 | } |
---|
| 3718 | while ( full ); |
---|
| 3719 | |
---|
| 3720 | return SYSCALL_OK; |
---|
| 3721 | |
---|
| 3722 | } // end _sys_fbf_cma_check() |
---|
| 3723 | |
---|
| 3724 | ////////////////////////////////////////////// |
---|
| 3725 | int _sys_fbf_cma_display( unsigned int index ) |
---|
| 3726 | { |
---|
| 3727 | // get calling thread scheduler, ltid and trdid |
---|
| 3728 | static_scheduler_t* psched = _get_sched(); |
---|
| 3729 | unsigned int ltid = _get_thread_ltid(); |
---|
| 3730 | unsigned int trdid = _get_thread_trdid(); |
---|
| 3731 | |
---|
| 3732 | // check FBF allocated |
---|
| 3733 | if ( (psched->context[ltid].slot[CTX_LOCKS_ID] & LOCKS_MASK_FBF) == 0 ) |
---|
[478] | 3734 | { |
---|
[725] | 3735 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
---|
| 3736 | "FBF not allocated to thread %x\n", trdid ); |
---|
[505] | 3737 | |
---|
[725] | 3738 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3739 | } |
---|
[725] | 3740 | |
---|
| 3741 | // get channel index |
---|
| 3742 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
| 3743 | |
---|
| 3744 | if ( channel >= NB_CMA_CHANNELS ) |
---|
[478] | 3745 | { |
---|
[725] | 3746 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
---|
| 3747 | "CMA channel non allocated to thread %x\n", trdid ); |
---|
[505] | 3748 | |
---|
[725] | 3749 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[614] | 3750 | } |
---|
[478] | 3751 | |
---|
[725] | 3752 | // check buffer index |
---|
| 3753 | if ( index >= _fbf_ker_chbuf.nbufs ) |
---|
| 3754 | { |
---|
| 3755 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
---|
| 3756 | "buffer index too large for thread %x\n", trdid ); |
---|
[440] | 3757 | |
---|
[725] | 3758 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
| 3759 | } |
---|
| 3760 | |
---|
| 3761 | // compute user buffer and status physical addresses |
---|
| 3762 | unsigned long long usr_sts_paddr; |
---|
| 3763 | unsigned long long usr_buf_paddr; |
---|
| 3764 | |
---|
| 3765 | fbf_chbuf_t* pdesc = &_fbf_ker_chbuf; |
---|
| 3766 | |
---|
| 3767 | usr_sts_paddr = ((pdesc->usr_desc[index] & 0xFFF0000000000000ULL) >> 20) + |
---|
| 3768 | ((pdesc->usr_desc[index] & 0x3FFFFFFULL) << 6); |
---|
| 3769 | |
---|
| 3770 | usr_buf_paddr = ((pdesc->usr_desc[index] & 0xFFFFFFFFFC000000ULL) >> 20); |
---|
| 3771 | |
---|
[614] | 3772 | #if GIET_DEBUG_FBF_CMA |
---|
[725] | 3773 | _printf("\n[FBF_CMA DEBUG] enters _sys_fbf_cma_display()\n" |
---|
| 3774 | " - cma channel = %d\n" |
---|
| 3775 | " - buffer index = %d\n" |
---|
| 3776 | " - usr buffer paddr = %l\n" |
---|
| 3777 | " - usr status paddr = %l\n", |
---|
| 3778 | channel, |
---|
| 3779 | index, |
---|
| 3780 | usr_buf_paddr, |
---|
| 3781 | usr_sts_paddr ); |
---|
[614] | 3782 | #endif |
---|
| 3783 | |
---|
[725] | 3784 | // SYNC request, because this buffer will be read from XRAM by the CMA component |
---|
| 3785 | _mmc_sync( usr_buf_paddr , FBUF_X_SIZE * FBUF_Y_SIZE ); |
---|
[440] | 3786 | |
---|
[614] | 3787 | // set user buffer status |
---|
[725] | 3788 | _physical_write( usr_sts_paddr, 0x1 ); |
---|
[614] | 3789 | |
---|
[725] | 3790 | // SYNC request, because this status will be read from XRAM by the CMA component |
---|
| 3791 | _mmc_sync( usr_sts_paddr, 4 ); |
---|
[614] | 3792 | |
---|
[714] | 3793 | return SYSCALL_OK; |
---|
[440] | 3794 | |
---|
| 3795 | } // end _sys_fbf_cma_display() |
---|
| 3796 | |
---|
| 3797 | /////////////////////// |
---|
| 3798 | int _sys_fbf_cma_stop() |
---|
| 3799 | { |
---|
| 3800 | // get channel index |
---|
[449] | 3801 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
---|
[440] | 3802 | |
---|
| 3803 | if ( channel >= NB_CMA_CHANNELS ) |
---|
| 3804 | { |
---|
[714] | 3805 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : CMA channel non allocated\n"); |
---|
| 3806 | |
---|
| 3807 | return SYSCALL_CHANNEL_NON_ALLOCATED; |
---|
[440] | 3808 | } |
---|
| 3809 | |
---|
| 3810 | // Desactivate CMA channel |
---|
[725] | 3811 | _cma_set_register( channel, CHBUF_RUN, MODE_IDLE ); |
---|
[440] | 3812 | |
---|
[714] | 3813 | return SYSCALL_OK; |
---|
[440] | 3814 | |
---|
| 3815 | } // end _sys_fbf_cma_stop() |
---|
| 3816 | |
---|
[754] | 3817 | #endif // if NB_CMA_CHANNELS |
---|
[440] | 3818 | |
---|
[754] | 3819 | |
---|
[440] | 3820 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 3821 | // Miscelaneous syscall handlers |
---|
| 3822 | ////////////////////////////////////////////////////////////////////////////// |
---|
| 3823 | |
---|
| 3824 | /////////////// |
---|
| 3825 | int _sys_ukn() |
---|
| 3826 | { |
---|
| 3827 | _printf("\n[GIET ERROR] Undefined System Call / EPC = %x\n", _get_epc() ); |
---|
[714] | 3828 | |
---|
| 3829 | return SYSCALL_UNDEFINED_SYSTEM_CALL; |
---|
[440] | 3830 | } |
---|
| 3831 | |
---|
| 3832 | //////////////////////////////////// |
---|
| 3833 | int _sys_proc_xyp( unsigned int* x, |
---|
| 3834 | unsigned int* y, |
---|
| 3835 | unsigned int* p ) |
---|
| 3836 | { |
---|
[428] | 3837 | unsigned int gpid = _get_procid(); // global processor index from CPO register |
---|
| 3838 | |
---|
| 3839 | *x = (gpid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
---|
| 3840 | *y = (gpid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 3841 | *p = gpid & ((1<<P_WIDTH)-1); |
---|
[440] | 3842 | |
---|
[714] | 3843 | return SYSCALL_OK; |
---|
[428] | 3844 | } |
---|
[440] | 3845 | |
---|
[494] | 3846 | //////////////////////////////////////////// |
---|
| 3847 | int _sys_procs_number( unsigned int* x_size, |
---|
| 3848 | unsigned int* y_size, |
---|
| 3849 | unsigned int* nprocs ) |
---|
[258] | 3850 | { |
---|
[494] | 3851 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[440] | 3852 | mapping_cluster_t * cluster = _get_cluster_base(header); |
---|
| 3853 | |
---|
[494] | 3854 | unsigned int x; |
---|
| 3855 | unsigned int y; |
---|
| 3856 | unsigned int okmin = 1; |
---|
| 3857 | unsigned int okmax = 1; |
---|
| 3858 | |
---|
| 3859 | // compute max values |
---|
| 3860 | unsigned int xmax = header->x_size; |
---|
| 3861 | unsigned int ymax = header->y_size; |
---|
| 3862 | unsigned int procs = cluster[0].procs; |
---|
| 3863 | |
---|
| 3864 | // check the (ymax-1) lower rows |
---|
| 3865 | for ( y = 0 ; y < ymax-1 ; y++ ) |
---|
[440] | 3866 | { |
---|
[494] | 3867 | for ( x = 0 ; x < xmax ; x++ ) |
---|
| 3868 | { |
---|
| 3869 | if (cluster[x*ymax+y].procs != procs ) okmin = 0; |
---|
| 3870 | } |
---|
[440] | 3871 | } |
---|
[494] | 3872 | |
---|
| 3873 | // check the upper row |
---|
| 3874 | for ( x = 0 ; x < xmax ; x++ ) |
---|
[440] | 3875 | { |
---|
[494] | 3876 | if (cluster[x*ymax+ymax-1].procs != procs ) okmax = 0; |
---|
[440] | 3877 | } |
---|
[494] | 3878 | |
---|
| 3879 | // return values |
---|
| 3880 | if ( okmin && okmax ) |
---|
| 3881 | { |
---|
| 3882 | *x_size = xmax; |
---|
| 3883 | *y_size = ymax; |
---|
| 3884 | *nprocs = procs; |
---|
| 3885 | } |
---|
| 3886 | else if ( okmin ) |
---|
| 3887 | { |
---|
| 3888 | *x_size = xmax; |
---|
| 3889 | *y_size = ymax-1; |
---|
| 3890 | *nprocs = procs; |
---|
| 3891 | } |
---|
| 3892 | else |
---|
| 3893 | { |
---|
| 3894 | *x_size = 0; |
---|
| 3895 | *y_size = 0; |
---|
| 3896 | *nprocs = 0; |
---|
| 3897 | } |
---|
[714] | 3898 | return SYSCALL_OK; |
---|
[440] | 3899 | } |
---|
| 3900 | |
---|
| 3901 | /////////////////////////////////////////////////////// |
---|
[516] | 3902 | int _sys_vseg_get_vbase( char* vspace_name, |
---|
| 3903 | char* vseg_name, |
---|
[440] | 3904 | unsigned int* vbase ) |
---|
| 3905 | { |
---|
[322] | 3906 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 3907 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
[516] | 3908 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
[258] | 3909 | |
---|
| 3910 | unsigned int vspace_id; |
---|
[516] | 3911 | unsigned int vseg_id; |
---|
[258] | 3912 | |
---|
| 3913 | // scan vspaces |
---|
| 3914 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
| 3915 | { |
---|
| 3916 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
---|
| 3917 | { |
---|
[516] | 3918 | // scan vsegs |
---|
| 3919 | for (vseg_id = vspace[vspace_id].vseg_offset; |
---|
| 3920 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
---|
| 3921 | vseg_id++) |
---|
[258] | 3922 | { |
---|
[516] | 3923 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
---|
[258] | 3924 | { |
---|
[516] | 3925 | *vbase = vseg[vseg_id].vbase; |
---|
[714] | 3926 | return SYSCALL_OK; |
---|
[258] | 3927 | } |
---|
| 3928 | } |
---|
| 3929 | } |
---|
| 3930 | } |
---|
[714] | 3931 | return SYSCALL_VSEG_NOT_FOUND; |
---|
[258] | 3932 | } |
---|
| 3933 | |
---|
[440] | 3934 | ///////////////////////////////////////////////////////// |
---|
[516] | 3935 | int _sys_vseg_get_length( char* vspace_name, |
---|
| 3936 | char* vseg_name, |
---|
[440] | 3937 | unsigned int* length ) |
---|
[258] | 3938 | { |
---|
[440] | 3939 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 3940 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
[516] | 3941 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
[258] | 3942 | |
---|
[440] | 3943 | unsigned int vspace_id; |
---|
[516] | 3944 | unsigned int vseg_id; |
---|
[440] | 3945 | |
---|
| 3946 | // scan vspaces |
---|
| 3947 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
[258] | 3948 | { |
---|
[440] | 3949 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
---|
| 3950 | { |
---|
[516] | 3951 | // scan vsegs |
---|
| 3952 | for (vseg_id = vspace[vspace_id].vseg_offset; |
---|
| 3953 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
---|
| 3954 | vseg_id++) |
---|
[440] | 3955 | { |
---|
[516] | 3956 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
---|
[440] | 3957 | { |
---|
[516] | 3958 | *length = vseg[vseg_id].length; |
---|
[714] | 3959 | return SYSCALL_OK; |
---|
[440] | 3960 | } |
---|
| 3961 | } |
---|
| 3962 | } |
---|
| 3963 | } |
---|
[714] | 3964 | return SYSCALL_VSEG_NOT_FOUND; |
---|
[258] | 3965 | } |
---|
| 3966 | |
---|
[440] | 3967 | //////////////////////////////////////// |
---|
| 3968 | int _sys_xy_from_ptr( void* ptr, |
---|
| 3969 | unsigned int* x, |
---|
| 3970 | unsigned int* y ) |
---|
[396] | 3971 | { |
---|
| 3972 | unsigned int flags; |
---|
[528] | 3973 | unsigned long long paddr = _v2p_translate( (unsigned int)ptr , &flags ); |
---|
[396] | 3974 | |
---|
[815] | 3975 | *x = (paddr>> (32 + Y_WIDTH)) & ((1 << X_WIDTH) - 1); |
---|
| 3976 | *y = (paddr>>32) & ((1 << Y_WIDTH) - 1); |
---|
[396] | 3977 | |
---|
[714] | 3978 | return SYSCALL_OK; |
---|
[396] | 3979 | } |
---|
| 3980 | |
---|
[440] | 3981 | ///////////////////////////////////////// |
---|
| 3982 | int _sys_heap_info( unsigned int* vaddr, |
---|
| 3983 | unsigned int* length, |
---|
| 3984 | unsigned int x, |
---|
| 3985 | unsigned int y ) |
---|
[258] | 3986 | { |
---|
[709] | 3987 | // checking parameters |
---|
| 3988 | if ( (x >= X_SIZE) || (y >= Y_SIZE) ) |
---|
| 3989 | { |
---|
| 3990 | *vaddr = 0; |
---|
| 3991 | *length = 0; |
---|
| 3992 | _printf("\n[GIET ERROR] in _sys_heap_info() : " |
---|
| 3993 | "illegal (%d,%d) coordinates\n", x , y ); |
---|
[714] | 3994 | return SYSCALL_ILLEGAL_CLUSTER_COORDINATES; |
---|
[709] | 3995 | } |
---|
| 3996 | |
---|
[440] | 3997 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[709] | 3998 | mapping_thread_t * thread = _get_thread_base(header); |
---|
[516] | 3999 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
| 4000 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
[294] | 4001 | |
---|
[709] | 4002 | unsigned int thread_id; |
---|
[440] | 4003 | unsigned int vspace_id; |
---|
[516] | 4004 | unsigned int vseg_id = 0xFFFFFFFF; |
---|
[258] | 4005 | |
---|
[709] | 4006 | // get calling thread vspace index |
---|
| 4007 | vspace_id = _get_context_slot(CTX_VSID_ID); |
---|
| 4008 | |
---|
| 4009 | // scan all threads in vspace to find one in clyster[x,y] |
---|
| 4010 | unsigned int min = vspace[vspace_id].thread_offset ; |
---|
| 4011 | unsigned int max = min + vspace[vspace_id].threads ; |
---|
| 4012 | for ( thread_id = min ; thread_id < max ; thread_id++ ) |
---|
[440] | 4013 | { |
---|
[709] | 4014 | if ( thread[thread_id].clusterid == (x * Y_SIZE + y) ) |
---|
[440] | 4015 | { |
---|
[709] | 4016 | vseg_id = thread[thread_id].heap_vseg_id; |
---|
| 4017 | break; |
---|
[440] | 4018 | } |
---|
| 4019 | } |
---|
| 4020 | |
---|
[516] | 4021 | // analysing the vseg_id |
---|
| 4022 | if ( vseg_id != 0xFFFFFFFF ) |
---|
[440] | 4023 | { |
---|
[516] | 4024 | *vaddr = vseg[vseg_id].vbase; |
---|
| 4025 | *length = vseg[vseg_id].length; |
---|
[440] | 4026 | } |
---|
| 4027 | else |
---|
| 4028 | { |
---|
| 4029 | *vaddr = 0; |
---|
| 4030 | *length = 0; |
---|
[709] | 4031 | _printf("error in _sys_heap_info() : no heap in cluster (%d,%d)\n", x , y ); |
---|
[440] | 4032 | } |
---|
[714] | 4033 | return SYSCALL_OK; |
---|
[440] | 4034 | } // end _sys_heap_info() |
---|
| 4035 | |
---|
| 4036 | |
---|
[258] | 4037 | // Local Variables: |
---|
| 4038 | // tab-width: 4 |
---|
| 4039 | // c-basic-offset: 4 |
---|
| 4040 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
---|
| 4041 | // indent-tabs-mode: nil |
---|
| 4042 | // End: |
---|
| 4043 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
---|
| 4044 | |
---|