| 1 | /////////////////////////////////////////////////////////////////////////////////// |
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| 2 | // File : sys_handler.c |
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| 3 | // Date : 01/04/2012 |
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| 4 | // Author : alain greiner and joel porquet |
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| 5 | // Copyright (c) UPMC-LIP6 |
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| 6 | /////////////////////////////////////////////////////////////////////////////////// |
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| 7 | |
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| 8 | #include <sys_handler.h> |
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| 9 | #include <tty_driver.h> |
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| 10 | #include <tim_driver.h> |
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| 11 | #include <nic_driver.h> |
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| 12 | #include <mmc_driver.h> |
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| 13 | #include <mwr_driver.h> |
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| 14 | #include <cma_driver.h> |
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| 15 | #include <ctx_handler.h> |
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| 16 | #include <fat32.h> |
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| 17 | #include <utils.h> |
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| 18 | #include <kernel_malloc.h> |
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| 19 | #include <tty0.h> |
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| 20 | #include <vmem.h> |
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| 21 | #include <hard_config.h> |
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| 22 | #include <giet_config.h> |
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| 23 | #include <mapping_info.h> |
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| 24 | #include <irq_handler.h> |
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| 25 | #include <io.h> |
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| 26 | |
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| 27 | #if !defined(SEG_BOOT_MAPPING_BASE) |
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| 28 | # error: You must define SEG_BOOT_MAPPING_BASE in the hard_config.h file |
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| 29 | #endif |
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| 30 | |
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| 31 | #if !defined(NB_TTY_CHANNELS) |
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| 32 | # error: You must define NB_TTY_CHANNELS in the hard_config.h file |
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| 33 | #endif |
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| 34 | |
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| 35 | #if (NB_TTY_CHANNELS < 1) |
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| 36 | # error: NB_TTY_CHANNELS cannot be smaller than 1! |
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| 37 | #endif |
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| 38 | |
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| 39 | #if !defined(NB_TIM_CHANNELS) |
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| 40 | # error: You must define NB_TIM_CHANNELS in the hard_config.h file |
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| 41 | #endif |
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| 42 | |
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| 43 | #if !defined(NB_NIC_CHANNELS) |
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| 44 | # error: You must define NB_NIC_CHANNELS in the hard_config.h file |
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| 45 | #endif |
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| 46 | |
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| 47 | #if !defined(NB_CMA_CHANNELS) |
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| 48 | # error: You must define NB_CMA_CHANNELS in the hard_config.h file |
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| 49 | #endif |
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| 50 | |
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| 51 | #if !defined(GIET_NO_HARD_CC) |
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| 52 | # error: You must define GIET_NO_HARD_CC in the giet_config.h file |
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| 53 | #endif |
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| 54 | |
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| 55 | #if !defined ( GIET_NIC_MAC4 ) |
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| 56 | # error: You must define GIET_NIC_MAC4 in the giet_config.h file |
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| 57 | #endif |
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| 58 | |
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| 59 | #if !defined ( GIET_NIC_MAC2 ) |
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| 60 | # error: You must define GIET_NIC_MAC2 in the giet_config.h file |
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| 61 | #endif |
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| 62 | |
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| 63 | //////////////////////////////////////////////////////////////////////////// |
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| 64 | // Extern variables |
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| 65 | //////////////////////////////////////////////////////////////////////////// |
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| 66 | |
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| 67 | // allocated in tty0.c file. |
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| 68 | extern sqt_lock_t _tty0_sqt_lock; |
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| 69 | |
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| 70 | // allocated in mwr_driver.c file. |
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| 71 | extern simple_lock_t _coproc_lock[X_SIZE*Y_SIZE]; |
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| 72 | extern unsigned int _coproc_done[X_SIZE*Y_SIZE]; |
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| 73 | |
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| 74 | // allocated in tty_driver.c file. |
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| 75 | extern unsigned int _tty_rx_full[NB_TTY_CHANNELS]; |
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| 76 | extern unsigned int _tty_rx_buf[NB_TTY_CHANNELS]; |
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| 77 | |
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| 78 | //////////////////////////////////////////////////////////////////////////// |
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| 79 | // Channel allocators for peripherals |
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| 80 | // (TTY[0] is reserved for kernel) |
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| 81 | //////////////////////////////////////////////////////////////////////////// |
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| 82 | |
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| 83 | __attribute__((section(".kdata"))) |
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| 84 | unsigned int _tty_channel_allocator = 1; |
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| 85 | |
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| 86 | __attribute__((section(".kdata"))) |
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| 87 | unsigned int _tim_channel_allocator = 0; |
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| 88 | |
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| 89 | __attribute__((section(".kdata"))) |
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| 90 | unsigned int _cma_channel_allocator = 0; |
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| 91 | |
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| 92 | __attribute__((section(".kdata"))) |
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| 93 | unsigned int _nic_rx_channel_allocator = 0; |
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| 94 | |
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| 95 | __attribute__((section(".kdata"))) |
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| 96 | unsigned int _nic_tx_channel_allocator = 0; |
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| 97 | |
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| 98 | //////////////////////////////////////////////////////////////////////////// |
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| 99 | // NIC_RX and NIC_TX chbuf arrays |
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| 100 | //////////////////////////////////////////////////////////////////////////// |
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| 101 | |
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| 102 | __attribute__((section(".kdata"))) |
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| 103 | nic_chbuf_t _nic_rx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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| 104 | |
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| 105 | __attribute__((section(".kdata"))) |
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| 106 | nic_chbuf_t _nic_tx_chbuf[NB_NIC_CHANNELS] __attribute__((aligned(64))); |
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| 107 | |
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| 108 | //////////////////////////////////////////////////////////////////////////// |
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| 109 | // FBF related chbuf descriptors array, indexed by the CMA channel index. |
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| 110 | // Physical addresses of these chbuf descriptors required for L2 cache sync. |
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| 111 | //////////////////////////////////////////////////////////////////////////// |
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| 112 | |
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| 113 | __attribute__((section(".kdata"))) |
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| 114 | fbf_chbuf_t _fbf_chbuf[NB_CMA_CHANNELS] __attribute__((aligned(64))); |
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| 115 | |
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| 116 | __attribute__((section(".kdata"))) |
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| 117 | unsigned long long _fbf_chbuf_paddr[NB_CMA_CHANNELS]; |
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| 118 | |
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| 119 | //////////////////////////////////////////////////////////////////////////// |
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| 120 | // Initialize the syscall vector with syscall handlers |
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| 121 | // Note: This array must be synchronised with the define in file stdio.h |
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| 122 | //////////////////////////////////////////////////////////////////////////// |
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| 123 | |
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| 124 | __attribute__((section(".kdata"))) |
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| 125 | const void * _syscall_vector[64] = |
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| 126 | { |
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| 127 | &_sys_proc_xyp, /* 0x00 */ |
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| 128 | &_get_proctime, /* 0x01 */ |
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| 129 | &_sys_tty_write, /* 0x02 */ |
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| 130 | &_sys_tty_read, /* 0x03 */ |
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| 131 | &_sys_tty_alloc, /* 0x04 */ |
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| 132 | &_sys_tty_get_lock, /* 0x05 */ |
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| 133 | &_sys_tty_release_lock, /* 0x06 */ |
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| 134 | &_sys_heap_info, /* 0x07 */ |
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| 135 | &_sys_local_task_id, /* 0x08 */ |
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| 136 | &_sys_global_task_id, /* 0x09 */ |
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| 137 | &_sys_fbf_cma_alloc, /* 0x0A */ |
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| 138 | &_sys_fbf_cma_start, /* 0x0B */ |
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| 139 | &_sys_fbf_cma_display, /* 0x0C */ |
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| 140 | &_sys_fbf_cma_stop, /* 0x0D */ |
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| 141 | &_sys_task_exit, /* 0x0E */ |
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| 142 | &_sys_procs_number, /* 0x0F */ |
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| 143 | |
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| 144 | &_sys_fbf_sync_write, /* 0x10 */ |
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| 145 | &_sys_fbf_sync_read, /* 0x11 */ |
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| 146 | &_sys_thread_id, /* 0x12 */ |
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| 147 | &_sys_ukn, /* 0x13 */ |
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| 148 | &_sys_tim_alloc, /* 0x14 */ |
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| 149 | &_sys_tim_start, /* 0x15 */ |
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| 150 | &_sys_tim_stop, /* 0x16 */ |
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| 151 | &_sys_ukn, /* 0x17 */ |
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| 152 | &_sys_ukn, /* 0x18 */ |
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| 153 | &_sys_context_switch, /* 0x19 */ |
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| 154 | &_sys_vseg_get_vbase, /* 0x1A */ |
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| 155 | &_sys_vseg_get_length, /* 0x1B */ |
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| 156 | &_sys_xy_from_ptr, /* 0x1C */ |
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| 157 | &_sys_ukn, /* 0x1D */ |
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| 158 | &_sys_ukn, /* 0x1E */ |
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| 159 | &_sys_ukn, /* 0x1F */ |
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| 160 | |
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| 161 | &_fat_user_open, /* 0x20 */ |
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| 162 | &_fat_user_read, /* 0x21 */ |
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| 163 | &_fat_user_write, /* 0x22 */ |
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| 164 | &_fat_user_lseek, /* 0x23 */ |
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| 165 | &_fat_fstat, /* 0x24 */ |
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| 166 | &_fat_close, /* 0x25 */ |
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| 167 | &_sys_ukn, /* 0x26 */ |
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| 168 | &_sys_ukn, /* 0x27 */ |
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| 169 | &_sys_ukn, /* 0x28 */ |
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| 170 | &_sys_ukn, /* 0x29 */ |
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| 171 | &_sys_ukn, /* 0x2A */ |
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| 172 | &_sys_ukn, /* 0x2B */ |
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| 173 | &_sys_ukn, /* 0x2C */ |
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| 174 | &_sys_ukn, /* 0x2D */ |
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| 175 | &_sys_ukn, /* 0x2E */ |
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| 176 | &_sys_ukn, /* 0x2F */ |
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| 177 | |
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| 178 | &_sys_nic_alloc, /* 0x30 */ |
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| 179 | &_sys_nic_start, /* 0x31 */ |
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| 180 | &_sys_nic_move, /* 0x32 */ |
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| 181 | &_sys_nic_stop, /* 0x33 */ |
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| 182 | &_sys_nic_stats, /* 0x34 */ |
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| 183 | &_sys_nic_clear, /* 0x35 */ |
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| 184 | &_sys_ukn, /* 0x36 */ |
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| 185 | &_sys_ukn, /* 0x37 */ |
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| 186 | &_sys_coproc_register_get, /* 0x38 */ |
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| 187 | &_sys_coproc_register_set, /* 0x39 */ |
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| 188 | &_sys_coproc_release, /* 0x3A */ |
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| 189 | &_sys_coproc_completed, /* 0x3B */ |
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| 190 | &_sys_coproc_alloc, /* 0x3C */ |
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| 191 | &_sys_coproc_channel_init, /* 0x3D */ |
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| 192 | &_sys_coproc_channel_start, /* 0x3E */ |
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| 193 | &_sys_coproc_channel_stop, /* 0x3F */ |
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| 194 | }; |
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| 195 | |
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| 196 | |
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| 197 | ////////////////////////////////////////////////////////////////////////////// |
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| 198 | // Coprocessors related syscall handlers |
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| 199 | ////////////////////////////////////////////////////////////////////////////// |
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| 200 | |
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| 201 | /////////////////////////////////////////////////////// |
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| 202 | int _sys_coproc_register_set( unsigned int cluster_xy, |
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| 203 | unsigned int reg_index, |
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| 204 | unsigned int value ) |
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| 205 | { |
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| 206 | // TODO checking coprocessor ownership... |
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| 207 | |
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| 208 | _mwr_set_coproc_register( cluster_xy , reg_index , value ); |
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| 209 | return 0; |
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| 210 | } |
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| 211 | |
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| 212 | /////////////////////////////////////////////////////// |
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| 213 | int _sys_coproc_register_get( unsigned int cluster_xy, |
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| 214 | unsigned int reg_index, |
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| 215 | unsigned int* buffer ) |
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| 216 | { |
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| 217 | // TODO checking coprocessor ownership... |
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| 218 | |
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| 219 | *buffer = _mwr_get_coproc_register( cluster_xy , reg_index ); |
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| 220 | return 0; |
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| 221 | } |
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| 222 | |
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| 223 | ////////////////////////////////////////////////// |
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| 224 | int _sys_coproc_alloc( unsigned int coproc_type, |
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| 225 | unsigned int* coproc_info, |
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| 226 | unsigned int* cluster_xy ) |
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| 227 | { |
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| 228 | // In this implementation, the allocation policy is constrained: |
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| 229 | // the coprocessor must be in the same cluster as the calling task, |
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| 230 | // and ther is at most one coprocessor per cluster |
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| 231 | |
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| 232 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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| 233 | mapping_cluster_t * cluster = _get_cluster_base(header); |
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| 234 | mapping_periph_t * periph = _get_periph_base(header); |
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| 235 | |
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| 236 | // get cluster coordinates and cluster global index |
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| 237 | unsigned int procid = _get_procid(); |
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| 238 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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| 239 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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| 240 | unsigned int cluster_id = x*Y_SIZE + y; |
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| 241 | |
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| 242 | // search coprocessor in cluster |
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| 243 | mapping_periph_t* found = NULL; |
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| 244 | unsigned int min = cluster[cluster_id].periph_offset; |
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| 245 | unsigned int max = min + cluster[cluster_id].periphs; |
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| 246 | unsigned int periph_id; |
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| 247 | for ( periph_id = min ; periph_id < max ; periph_id++ ) |
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| 248 | { |
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| 249 | if ( (periph[periph_id].type == PERIPH_TYPE_MWR) && |
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| 250 | (periph[periph_id].subtype == coproc_type) ) |
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| 251 | { |
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| 252 | found = &periph[periph_id]; |
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| 253 | break; |
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| 254 | } |
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| 255 | } |
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| 256 | |
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| 257 | if ( found != NULL ) |
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| 258 | { |
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| 259 | // get the lock (at most one coproc per cluster) |
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| 260 | _simple_lock_acquire( &_coproc_lock[cluster_id] ); |
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| 261 | |
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| 262 | // returns coprocessor info |
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| 263 | *coproc_info = (found->arg0 & 0xFF) | |
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| 264 | (found->arg1 & 0xFF)<<8 | |
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| 265 | (found->arg2 & 0xFF)<<16 | |
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| 266 | (found->arg3 & 0xFF)<<24 ; |
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| 267 | *cluster_xy = (x<<Y_WIDTH) + y; |
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| 268 | |
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| 269 | #if GIET_DEBUG_COPROC |
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| 270 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_alloc() in cluster[%d,%d]\n" |
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| 271 | " coproc_info = %x / cluster_xy = %x\n", |
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| 272 | x , y , *coproc_info , *cluster_xy ); |
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| 273 | #endif |
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| 274 | return 0; |
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| 275 | } |
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| 276 | else |
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| 277 | { |
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| 278 | _printf("\n[GIET_ERROR] in _sys_coproc_alloc(): no coprocessor " |
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| 279 | " with type %d available in cluster[%d,%d]\n", |
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| 280 | coproc_type , x , y ); |
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| 281 | return -1; |
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| 282 | } |
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| 283 | } // end _sys_coproc_alloc() |
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| 284 | |
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| 285 | ////////////////////////////////////////////////// |
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| 286 | int _sys_coproc_release( unsigned int cluster_xy ) |
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| 287 | { |
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| 288 | // TODO checking coprocessor ownership... |
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| 289 | |
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| 290 | // check cluster coordinates |
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| 291 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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| 292 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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| 293 | unsigned int procid = _get_procid(); |
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| 294 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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| 295 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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| 296 | if ( (x != cx) || (y != cy) ) |
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| 297 | { |
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| 298 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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| 299 | "wrong cluster coordinates\n"); |
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| 300 | return -1; |
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| 301 | } |
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| 302 | |
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| 303 | // compute coprocessor global index |
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| 304 | unsigned int coproc_id = x * Y_SIZE + y; |
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| 305 | |
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| 306 | // release coprocessor |
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| 307 | _simple_lock_release( &_coproc_lock[coproc_id] ); |
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| 308 | |
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| 309 | #if GIET_DEBUG_COPROC |
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| 310 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_release() in cluster[%d,%d]\n", |
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| 311 | x, y ); |
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| 312 | #endif |
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| 313 | |
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| 314 | return 0; |
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| 315 | } // end _sys_coproc_release() |
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| 316 | |
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| 317 | ///////////////////////////////////////////////////////////////// |
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| 318 | int _sys_coproc_channel_init( unsigned int cluster_xy, |
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| 319 | unsigned int channel, |
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| 320 | giet_coproc_channel_t* desc ) |
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| 321 | { |
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| 322 | // TODO checking coprocessor ownership... |
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| 323 | |
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| 324 | // check cluster coordinates |
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| 325 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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| 326 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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| 327 | unsigned int procid = _get_procid(); |
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| 328 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
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| 329 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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| 330 | if ( (x != cx) || (y != cy) ) |
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| 331 | { |
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| 332 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init(): " |
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| 333 | "wrong cluster coordinates\n"); |
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| 334 | return -1; |
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| 335 | } |
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| 336 | |
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| 337 | // check channel mode |
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| 338 | unsigned mode = desc->channel_mode; |
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| 339 | if ( (mode != MODE_MWMR) && |
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| 340 | (mode != MODE_DMA_IRQ) && |
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| 341 | (mode != MODE_DMA_NO_IRQ) ) |
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| 342 | { |
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| 343 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_init():" |
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| 344 | " illegal mode\n"); |
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| 345 | return -1; |
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| 346 | } |
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| 347 | |
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| 348 | // get memory buffer size |
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| 349 | unsigned int size = desc->buffer_size; |
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| 350 | |
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| 351 | // physical addresses |
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| 352 | unsigned long long buffer_paddr; |
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| 353 | unsigned int buffer_lsb; |
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| 354 | unsigned int buffer_msb; |
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| 355 | unsigned long long mwmr_paddr; |
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| 356 | unsigned int mwmr_lsb; |
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| 357 | unsigned int mwmr_msb; |
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| 358 | unsigned long long lock_paddr; |
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| 359 | unsigned int lock_lsb; |
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| 360 | unsigned int lock_msb; |
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| 361 | |
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| 362 | unsigned int flags; // unused |
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| 363 | |
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| 364 | // compute memory buffer physical address |
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| 365 | buffer_paddr = _v2p_translate( desc->buffer_vaddr , &flags ); |
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| 366 | buffer_lsb = (unsigned int)buffer_paddr; |
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| 367 | buffer_msb = (unsigned int)(buffer_paddr>>32); |
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| 368 | |
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| 369 | // call MWMR_DMA driver |
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| 370 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_MODE, mode ); |
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| 371 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_SIZE, size ); |
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| 372 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_BUFFER_LSB, buffer_lsb ); |
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| 373 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_BUFFER_MSB, buffer_msb ); |
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| 374 | |
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| 375 | if ( mode == MODE_MWMR ) |
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| 376 | { |
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| 377 | // compute MWMR descriptor physical address |
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| 378 | mwmr_paddr = _v2p_translate( desc->mwmr_vaddr , &flags ); |
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| 379 | mwmr_lsb = (unsigned int)mwmr_paddr; |
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| 380 | mwmr_msb = (unsigned int)(mwmr_paddr>>32); |
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| 381 | |
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| 382 | // call MWMR_DMA driver |
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| 383 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_MWMR_LSB, mwmr_lsb ); |
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| 384 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_MWMR_MSB, mwmr_msb ); |
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| 385 | |
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| 386 | // compute lock physical address |
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| 387 | lock_paddr = _v2p_translate( desc->lock_vaddr , &flags ); |
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| 388 | lock_lsb = (unsigned int)lock_paddr; |
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| 389 | lock_msb = (unsigned int)(lock_paddr>>32); |
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| 390 | |
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| 391 | // call MWMR_DMA driver |
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| 392 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_LOCK_LSB, lock_lsb ); |
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| 393 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_LOCK_MSB, lock_msb ); |
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| 394 | } |
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| 395 | |
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| 396 | #if GIET_DEBUG_COPROC |
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| 397 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_channel_init() in cluster[%d,%d]\n" |
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| 398 | " channel = %d / mode = %d / buffer_size = %d\n" |
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| 399 | " buffer_paddr = %l / mwmr_paddr = %l / lock_paddr = %l\n", |
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| 400 | x , y , channel , mode , size , |
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| 401 | buffer_paddr, mwmr_paddr, lock_paddr ); |
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| 402 | #endif |
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| 403 | |
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| 404 | return 0; |
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| 405 | } // end _sys_coproc_channel_init() |
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| 406 | |
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| 407 | //////////////////////////////////////////////////////// |
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| 408 | int _sys_coproc_channel_start( unsigned int cluster_xy, |
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| 409 | unsigned int channel ) |
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| 410 | { |
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| 411 | // TODO checking coprocessor ownership... |
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| 412 | |
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| 413 | // check cluster coordinates |
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| 414 | unsigned int cx = cluster_xy >> Y_WIDTH; |
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| 415 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
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| 416 | unsigned int procid = _get_procid(); |
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| 417 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
|---|
| 418 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
|---|
| 419 | if ( (x != cx) || (y != cy) ) |
|---|
| 420 | { |
|---|
| 421 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_start():" |
|---|
| 422 | " wrong coordinates\n"); |
|---|
| 423 | return -1; |
|---|
| 424 | } |
|---|
| 425 | |
|---|
| 426 | // reset synchronisation variable |
|---|
| 427 | unsigned int coproc_id = (x * Y_SIZE) + y; |
|---|
| 428 | _coproc_done[coproc_id] = 0; |
|---|
| 429 | |
|---|
| 430 | // call MWMR_DMA driver |
|---|
| 431 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_RUNNING, 1 ); |
|---|
| 432 | |
|---|
| 433 | #if GIET_DEBUG_COPROC |
|---|
| 434 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_channel_start() in cluster[%d,%d]" |
|---|
| 435 | " / channel = %d\n", x , y , channel ); |
|---|
| 436 | #endif |
|---|
| 437 | |
|---|
| 438 | return 0; |
|---|
| 439 | } // end _sys_coproc_channel_start() |
|---|
| 440 | |
|---|
| 441 | /////////////////////////////////////////////////////// |
|---|
| 442 | int _sys_coproc_channel_stop( unsigned int cluster_xy, |
|---|
| 443 | unsigned int channel ) |
|---|
| 444 | { |
|---|
| 445 | // TODO checking coprocessor ownership... |
|---|
| 446 | |
|---|
| 447 | // check cluster coordinates |
|---|
| 448 | unsigned int cx = cluster_xy >> Y_WIDTH; |
|---|
| 449 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
|---|
| 450 | unsigned int procid = _get_procid(); |
|---|
| 451 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
|---|
| 452 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
|---|
| 453 | if ( (x != cx) || (y != cy) ) |
|---|
| 454 | { |
|---|
| 455 | _printf("\n[GIET_ERROR] in _sys_coproc_channel_stop(): wrong coordinates\n"); |
|---|
| 456 | return -1; |
|---|
| 457 | } |
|---|
| 458 | |
|---|
| 459 | // call MWMR_DMA driver |
|---|
| 460 | _mwr_set_channel_register( cluster_xy, channel, CHANNEL_RUNNING, 0 ); |
|---|
| 461 | |
|---|
| 462 | #if GIET_DEBUG_COPROC |
|---|
| 463 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_channel_stop() in cluster[%d,%d]" |
|---|
| 464 | " / channel = %d\n", x , y , channel ); |
|---|
| 465 | #endif |
|---|
| 466 | |
|---|
| 467 | return 0; |
|---|
| 468 | } // end _sys_coproc_channel_stop() |
|---|
| 469 | |
|---|
| 470 | ///////////////////////////////////////////////////// |
|---|
| 471 | int _sys_coproc_completed( unsigned int cluster_xy ) |
|---|
| 472 | { |
|---|
| 473 | // TODO checking coprocessor ownership... |
|---|
| 474 | |
|---|
| 475 | // check cluster coordinates |
|---|
| 476 | unsigned int cx = cluster_xy >> Y_WIDTH; |
|---|
| 477 | unsigned int cy = cluster_xy & ((1<<Y_WIDTH)-1); |
|---|
| 478 | unsigned int procid = _get_procid(); |
|---|
| 479 | unsigned int x = procid >> (Y_WIDTH + P_WIDTH); |
|---|
| 480 | unsigned int y = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
|---|
| 481 | if ( (x != cx) || (y != cy) ) |
|---|
| 482 | { |
|---|
| 483 | _printf("\n[GIET_ERROR] in _sys_coproc_completed(): " |
|---|
| 484 | "wrong cluster coordinates\n"); |
|---|
| 485 | return -1; |
|---|
| 486 | } |
|---|
| 487 | |
|---|
| 488 | // polling the synchronisation variable |
|---|
| 489 | unsigned int coproc_id = (x * Y_SIZE) + y; |
|---|
| 490 | while ( ioread32( &_coproc_done[coproc_id]) == 0 ) asm volatile("nop"); |
|---|
| 491 | |
|---|
| 492 | _coproc_done[coproc_id] = 0; |
|---|
| 493 | |
|---|
| 494 | #if GIET_DEBUG_COPROC |
|---|
| 495 | _printf("\n[GIET DEBUG COPROC] _sys_coproc_completed() in cluster[%d,%d]\n", |
|---|
| 496 | x, y ); |
|---|
| 497 | #endif |
|---|
| 498 | |
|---|
| 499 | return 0; |
|---|
| 500 | } // end _sys_coproc_completed() |
|---|
| 501 | |
|---|
| 502 | |
|---|
| 503 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 504 | // TTY related syscall handlers |
|---|
| 505 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 506 | |
|---|
| 507 | //////////////////// |
|---|
| 508 | int _sys_tty_alloc() |
|---|
| 509 | { |
|---|
| 510 | // get a new TTY terminal index |
|---|
| 511 | unsigned int channel = _atomic_increment( &_tty_channel_allocator, 1 ); |
|---|
| 512 | |
|---|
| 513 | if ( channel >= NB_TTY_CHANNELS ) |
|---|
| 514 | { |
|---|
| 515 | _printf("\n[GIET_ERROR] in _sys_tty_alloc() : not enough TTY channels\n"); |
|---|
| 516 | return -1; |
|---|
| 517 | } |
|---|
| 518 | else |
|---|
| 519 | { |
|---|
| 520 | } |
|---|
| 521 | |
|---|
| 522 | // allocate a WTI mailbox to the calling proc if external IRQ |
|---|
| 523 | unsigned int unused; |
|---|
| 524 | if ( USE_PIC ) _ext_irq_alloc( ISR_TTY_RX , channel , &unused ); |
|---|
| 525 | |
|---|
| 526 | // update calling task index |
|---|
| 527 | _set_context_slot( CTX_TTY_ID, channel ); |
|---|
| 528 | |
|---|
| 529 | return 0; |
|---|
| 530 | } |
|---|
| 531 | |
|---|
| 532 | ///////////////////////////////////////////////// |
|---|
| 533 | int _sys_tty_write( const char* buffer, |
|---|
| 534 | unsigned int length, // number of characters |
|---|
| 535 | unsigned int channel) // channel index |
|---|
| 536 | { |
|---|
| 537 | unsigned int nwritten; |
|---|
| 538 | |
|---|
| 539 | // compute and check tty channel |
|---|
| 540 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
|---|
| 541 | if( channel >= NB_TTY_CHANNELS ) return -1; |
|---|
| 542 | |
|---|
| 543 | // write string to TTY channel |
|---|
| 544 | for (nwritten = 0; nwritten < length; nwritten++) |
|---|
| 545 | { |
|---|
| 546 | // check tty's status |
|---|
| 547 | if ( _tty_get_register( channel, TTY_STATUS ) & 0x2 ) break; |
|---|
| 548 | |
|---|
| 549 | // write one byte |
|---|
| 550 | if (buffer[nwritten] == '\n') |
|---|
| 551 | { |
|---|
| 552 | _tty_set_register( channel, TTY_WRITE, (unsigned int)'\r' ); |
|---|
| 553 | } |
|---|
| 554 | _tty_set_register( channel, TTY_WRITE, (unsigned int)buffer[nwritten] ); |
|---|
| 555 | } |
|---|
| 556 | |
|---|
| 557 | return nwritten; |
|---|
| 558 | } |
|---|
| 559 | |
|---|
| 560 | //////////////////////////////////////////////// |
|---|
| 561 | int _sys_tty_read( char* buffer, |
|---|
| 562 | unsigned int length, // unused |
|---|
| 563 | unsigned int channel) // channel index |
|---|
| 564 | { |
|---|
| 565 | // compute and check tty channel |
|---|
| 566 | if( channel == 0xFFFFFFFF ) channel = _get_context_slot(CTX_TTY_ID); |
|---|
| 567 | if( channel >= NB_TTY_CHANNELS ) return -1; |
|---|
| 568 | |
|---|
| 569 | // read one character from TTY channel |
|---|
| 570 | if (_tty_rx_full[channel] == 0) |
|---|
| 571 | { |
|---|
| 572 | return 0; |
|---|
| 573 | } |
|---|
| 574 | else |
|---|
| 575 | { |
|---|
| 576 | *buffer = _tty_rx_buf[channel]; |
|---|
| 577 | _tty_rx_full[channel] = 0; |
|---|
| 578 | return 1; |
|---|
| 579 | } |
|---|
| 580 | } |
|---|
| 581 | |
|---|
| 582 | /////////////////////////////////////////// |
|---|
| 583 | int _sys_tty_get_lock( unsigned int channel, // unused |
|---|
| 584 | unsigned int * save_sr_ptr ) |
|---|
| 585 | { |
|---|
| 586 | // check tty channel |
|---|
| 587 | if( channel != 0 ) return 1; |
|---|
| 588 | |
|---|
| 589 | _it_disable( save_sr_ptr ); |
|---|
| 590 | _sqt_lock_acquire( &_tty0_sqt_lock ); |
|---|
| 591 | return 0; |
|---|
| 592 | } |
|---|
| 593 | |
|---|
| 594 | /////////////////////////////////////////////// |
|---|
| 595 | int _sys_tty_release_lock( unsigned int channel, |
|---|
| 596 | unsigned int * save_sr_ptr ) |
|---|
| 597 | { |
|---|
| 598 | // check tty channel |
|---|
| 599 | if( channel != 0 ) return 1; |
|---|
| 600 | |
|---|
| 601 | _sqt_lock_release( &_tty0_sqt_lock ); |
|---|
| 602 | _it_restore( save_sr_ptr ); |
|---|
| 603 | return 0; |
|---|
| 604 | } |
|---|
| 605 | |
|---|
| 606 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 607 | // TIM related syscall handlers |
|---|
| 608 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 609 | |
|---|
| 610 | //////////////////// |
|---|
| 611 | int _sys_tim_alloc() |
|---|
| 612 | { |
|---|
| 613 | // get a new timer index |
|---|
| 614 | unsigned int channel = _atomic_increment( &_tim_channel_allocator, 1 ); |
|---|
| 615 | |
|---|
| 616 | if ( channel >= NB_TIM_CHANNELS ) |
|---|
| 617 | { |
|---|
| 618 | _printf("\n[GIET_ERROR] in _sys_tim_alloc() : not enough TIM channels\n"); |
|---|
| 619 | return -1; |
|---|
| 620 | } |
|---|
| 621 | else |
|---|
| 622 | { |
|---|
| 623 | _set_context_slot( CTX_TIM_ID, channel ); |
|---|
| 624 | return 0; |
|---|
| 625 | } |
|---|
| 626 | } |
|---|
| 627 | |
|---|
| 628 | ///////////////////////////////////////// |
|---|
| 629 | int _sys_tim_start( unsigned int period ) |
|---|
| 630 | { |
|---|
| 631 | // get timer index |
|---|
| 632 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
|---|
| 633 | if ( channel >= NB_TIM_CHANNELS ) |
|---|
| 634 | { |
|---|
| 635 | _printf("\n[GIET_ERROR] in _sys_tim_start() : not enough TIM channels\n"); |
|---|
| 636 | return -1; |
|---|
| 637 | } |
|---|
| 638 | |
|---|
| 639 | // start timer |
|---|
| 640 | _timer_start( channel, period ); |
|---|
| 641 | |
|---|
| 642 | return 0; |
|---|
| 643 | } |
|---|
| 644 | |
|---|
| 645 | /////////////////// |
|---|
| 646 | int _sys_tim_stop() |
|---|
| 647 | { |
|---|
| 648 | // get timer index |
|---|
| 649 | unsigned int channel = _get_context_slot( CTX_TIM_ID ); |
|---|
| 650 | if ( channel >= NB_TIM_CHANNELS ) |
|---|
| 651 | { |
|---|
| 652 | _printf("\n[GIET_ERROR] in _sys_tim_stop() : illegal timer index\n"); |
|---|
| 653 | return -1; |
|---|
| 654 | } |
|---|
| 655 | |
|---|
| 656 | // stop timer |
|---|
| 657 | _timer_stop( channel ); |
|---|
| 658 | |
|---|
| 659 | return 0; |
|---|
| 660 | } |
|---|
| 661 | |
|---|
| 662 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 663 | // NIC related syscall handlers |
|---|
| 664 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 665 | |
|---|
| 666 | #define NIC_CONTAINER_SIZE 4096 |
|---|
| 667 | |
|---|
| 668 | //////////////////////////////////////// |
|---|
| 669 | int _sys_nic_alloc( unsigned int is_rx, |
|---|
| 670 | unsigned int xmax, |
|---|
| 671 | unsigned int ymax ) |
|---|
| 672 | { |
|---|
| 673 | // check xmax / ymax parameters |
|---|
| 674 | if ( xmax > X_SIZE ) |
|---|
| 675 | { |
|---|
| 676 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() xmax argument too large\n"); |
|---|
| 677 | return -1; |
|---|
| 678 | } |
|---|
| 679 | if ( ymax > Y_SIZE ) |
|---|
| 680 | { |
|---|
| 681 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() ymax argument too large\n"); |
|---|
| 682 | return -1; |
|---|
| 683 | } |
|---|
| 684 | |
|---|
| 685 | // get a NIC_RX or NIC_TX channel index |
|---|
| 686 | unsigned int nic_channel; |
|---|
| 687 | unsigned int cma_channel; |
|---|
| 688 | |
|---|
| 689 | if ( is_rx ) nic_channel = _atomic_increment( &_nic_rx_channel_allocator, 1 ); |
|---|
| 690 | else nic_channel = _atomic_increment( &_nic_tx_channel_allocator, 1 ); |
|---|
| 691 | |
|---|
| 692 | if ( (nic_channel >= NB_NIC_CHANNELS) ) |
|---|
| 693 | { |
|---|
| 694 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough NIC channels\n"); |
|---|
| 695 | return -1; |
|---|
| 696 | } |
|---|
| 697 | |
|---|
| 698 | // get a CMA channel index |
|---|
| 699 | cma_channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
|---|
| 700 | |
|---|
| 701 | if ( cma_channel >= NB_CMA_CHANNELS ) |
|---|
| 702 | { |
|---|
| 703 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough CMA channels\n"); |
|---|
| 704 | return -1; |
|---|
| 705 | } |
|---|
| 706 | |
|---|
| 707 | #if GIET_DEBUG_NIC |
|---|
| 708 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
|---|
| 709 | _printf("\n[GIET DEBUG NIC] Task %d enters sys_nic_alloc() at cycle %d\n" |
|---|
| 710 | " nic_channel = %d / cma_channel = %d\n", |
|---|
| 711 | thread , _get_proctime() , nic_channel , cma_channel ); |
|---|
| 712 | #endif |
|---|
| 713 | |
|---|
| 714 | // register nic_index and cma_index in task context |
|---|
| 715 | if ( is_rx ) |
|---|
| 716 | { |
|---|
| 717 | _set_context_slot( CTX_NIC_RX_ID, nic_channel ); |
|---|
| 718 | _set_context_slot( CTX_CMA_RX_ID, cma_channel ); |
|---|
| 719 | } |
|---|
| 720 | else |
|---|
| 721 | { |
|---|
| 722 | _set_context_slot( CTX_NIC_TX_ID, nic_channel ); |
|---|
| 723 | _set_context_slot( CTX_CMA_TX_ID, cma_channel ); |
|---|
| 724 | } |
|---|
| 725 | |
|---|
| 726 | // physical addresses to be registered in the CMA registers |
|---|
| 727 | unsigned long long nic_chbuf_pbase; // NIC chbuf physical address |
|---|
| 728 | unsigned long long ker_chbuf_pbase; // kernel chbuf physical address |
|---|
| 729 | |
|---|
| 730 | // allocate one kernel container per cluster in the (xmax / ymax) mesh |
|---|
| 731 | unsigned int cx; // cluster X coordinate |
|---|
| 732 | unsigned int cy; // cluster Y coordinate |
|---|
| 733 | unsigned int index; // container index in chbuf |
|---|
| 734 | unsigned int vaddr; // virtual address |
|---|
| 735 | unsigned long long cont_paddr; // container physical address |
|---|
| 736 | |
|---|
| 737 | unsigned int flags; // for _v2p_translate() |
|---|
| 738 | |
|---|
| 739 | for ( cx = 0 ; cx < xmax ; cx++ ) |
|---|
| 740 | { |
|---|
| 741 | for ( cy = 0 ; cy < ymax ; cy++ ) |
|---|
| 742 | { |
|---|
| 743 | // compute index in chbuf |
|---|
| 744 | index = (cx * ymax) + cy; |
|---|
| 745 | |
|---|
| 746 | // allocate the kernel container |
|---|
| 747 | vaddr = (unsigned int)_remote_malloc( NIC_CONTAINER_SIZE, cx, cy ); |
|---|
| 748 | |
|---|
| 749 | if ( vaddr == 0 ) // not enough kernel heap memory in cluster[cx,cy] |
|---|
| 750 | { |
|---|
| 751 | _printf("\n[GIET_ERROR] in _sys_nic_alloc() not enough kenel heap" |
|---|
| 752 | " in cluster[%d,%d]\n", cx, cy ); |
|---|
| 753 | return -1; |
|---|
| 754 | } |
|---|
| 755 | |
|---|
| 756 | // compute container physical address |
|---|
| 757 | cont_paddr = _v2p_translate( vaddr , &flags ); |
|---|
| 758 | |
|---|
| 759 | // initialize chbuf entry |
|---|
| 760 | if ( is_rx ) _nic_rx_chbuf[nic_channel].buffer[index].desc = cont_paddr; |
|---|
| 761 | else _nic_tx_chbuf[nic_channel].buffer[index].desc = cont_paddr; |
|---|
| 762 | |
|---|
| 763 | #if GIET_DEBUG_NIC |
|---|
| 764 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc()" |
|---|
| 765 | " allocates container in cluster[%d,%d]\n" |
|---|
| 766 | " vaddr = %x / paddr = %l\n", |
|---|
| 767 | thread , cx , cy , vaddr , cont_paddr ); |
|---|
| 768 | #endif |
|---|
| 769 | } |
|---|
| 770 | } |
|---|
| 771 | |
|---|
| 772 | // complete kernel chbuf initialisation |
|---|
| 773 | if ( is_rx ) |
|---|
| 774 | { |
|---|
| 775 | _nic_rx_chbuf[nic_channel].xmax = xmax; |
|---|
| 776 | _nic_rx_chbuf[nic_channel].ymax = ymax; |
|---|
| 777 | } |
|---|
| 778 | else |
|---|
| 779 | { |
|---|
| 780 | _nic_tx_chbuf[nic_channel].xmax = xmax; |
|---|
| 781 | _nic_tx_chbuf[nic_channel].ymax = ymax; |
|---|
| 782 | } |
|---|
| 783 | |
|---|
| 784 | // compute the NIC chbuf descriptor physical address |
|---|
| 785 | unsigned int offset; |
|---|
| 786 | if ( is_rx ) offset = 0x4000; |
|---|
| 787 | else offset = 0x4080; |
|---|
| 788 | nic_chbuf_pbase = (((unsigned long long)((X_IO << Y_WIDTH) + Y_IO))<<32) | |
|---|
| 789 | (SEG_NIC_BASE + (nic_channel<<15) + offset); |
|---|
| 790 | |
|---|
| 791 | #if GIET_DEBUG_NIC |
|---|
| 792 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get NIC chbuf : paddr = %l\n", |
|---|
| 793 | thread , nic_chbuf_pbase ); |
|---|
| 794 | #endif |
|---|
| 795 | |
|---|
| 796 | // compute the kernel chbuf descriptor physical address |
|---|
| 797 | if ( is_rx ) vaddr = (unsigned int)( &_nic_rx_chbuf[nic_channel] ); |
|---|
| 798 | else vaddr = (unsigned int)( &_nic_tx_chbuf[nic_channel] ); |
|---|
| 799 | |
|---|
| 800 | ker_chbuf_pbase = _v2p_translate( vaddr , &flags ); |
|---|
| 801 | |
|---|
| 802 | #if GIET_DEBUG_NIC |
|---|
| 803 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_alloc() get kernel chbuf\n" |
|---|
| 804 | " vaddr = %x / paddr = %l\n", |
|---|
| 805 | thread , vaddr , ker_chbuf_pbase ); |
|---|
| 806 | #endif |
|---|
| 807 | |
|---|
| 808 | // sync the kernel chbuf in L2 after write in L2 |
|---|
| 809 | _mmc_sync( ker_chbuf_pbase, sizeof( nic_chbuf_t ) ); |
|---|
| 810 | |
|---|
| 811 | // initializes CMA registers defining the source & destination chbufs |
|---|
| 812 | if ( is_rx ) // NIC to kernel |
|---|
| 813 | { |
|---|
| 814 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(nic_chbuf_pbase) ); |
|---|
| 815 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
|---|
| 816 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, 2 ); |
|---|
| 817 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(ker_chbuf_pbase) ); |
|---|
| 818 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
|---|
| 819 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, xmax * ymax ); |
|---|
| 820 | } |
|---|
| 821 | else // kernel to NIC |
|---|
| 822 | { |
|---|
| 823 | _cma_set_register( cma_channel, CHBUF_SRC_DESC , (unsigned int)(ker_chbuf_pbase) ); |
|---|
| 824 | _cma_set_register( cma_channel, CHBUF_SRC_EXT , (unsigned int)(ker_chbuf_pbase>>32) ); |
|---|
| 825 | _cma_set_register( cma_channel, CHBUF_SRC_NBUFS, xmax * ymax ); |
|---|
| 826 | _cma_set_register( cma_channel, CHBUF_DST_DESC , (unsigned int)(nic_chbuf_pbase) ); |
|---|
| 827 | _cma_set_register( cma_channel, CHBUF_DST_EXT , (unsigned int)(nic_chbuf_pbase>>32) ); |
|---|
| 828 | _cma_set_register( cma_channel, CHBUF_DST_NBUFS, 2 ); |
|---|
| 829 | } |
|---|
| 830 | |
|---|
| 831 | #if GIET_DEBUG_NIC |
|---|
| 832 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_alloc() at cycle %d\n", |
|---|
| 833 | thread, _get_proctime() ); |
|---|
| 834 | #endif |
|---|
| 835 | |
|---|
| 836 | return nic_channel; |
|---|
| 837 | } // end _sys_nic_alloc() |
|---|
| 838 | |
|---|
| 839 | |
|---|
| 840 | //////////////////////////////////////// |
|---|
| 841 | int _sys_nic_start( unsigned int is_rx, |
|---|
| 842 | unsigned int channel ) |
|---|
| 843 | { |
|---|
| 844 | unsigned int nic_channel; |
|---|
| 845 | unsigned int cma_channel; |
|---|
| 846 | |
|---|
| 847 | // get NIC channel index and CMA channel index from task context |
|---|
| 848 | if ( is_rx ) |
|---|
| 849 | { |
|---|
| 850 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
|---|
| 851 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
|---|
| 852 | } |
|---|
| 853 | else |
|---|
| 854 | { |
|---|
| 855 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
|---|
| 856 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
|---|
| 857 | } |
|---|
| 858 | |
|---|
| 859 | #if GIET_DEBUG_NIC |
|---|
| 860 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
|---|
| 861 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_start() at cycle %d\n" |
|---|
| 862 | " get NIC channel = %d / CMA channel = %d\n", |
|---|
| 863 | thread, _get_proctime(), nic_channel, cma_channel ); |
|---|
| 864 | #endif |
|---|
| 865 | |
|---|
| 866 | // check NIC and CMA channels index |
|---|
| 867 | if ( nic_channel != channel ) |
|---|
| 868 | { |
|---|
| 869 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal NIC channel\n"); |
|---|
| 870 | return -1; |
|---|
| 871 | } |
|---|
| 872 | if ( cma_channel >= NB_CMA_CHANNELS ) |
|---|
| 873 | { |
|---|
| 874 | _printf("\n[GIET_ERROR] in _sys_nic_start(): illegal CMA channel\n"); |
|---|
| 875 | return -1; |
|---|
| 876 | } |
|---|
| 877 | |
|---|
| 878 | // start CMA transfer |
|---|
| 879 | _cma_set_register( cma_channel, CHBUF_BUF_SIZE , NIC_CONTAINER_SIZE ); |
|---|
| 880 | _cma_set_register( cma_channel, CHBUF_PERIOD , 0 ); // OUT_OF_ORDER |
|---|
| 881 | _cma_set_register( cma_channel, CHBUF_RUN , 1 ); |
|---|
| 882 | |
|---|
| 883 | // activates NIC channel |
|---|
| 884 | _nic_channel_start( nic_channel, is_rx, GIET_NIC_MAC4, GIET_NIC_MAC2 ); |
|---|
| 885 | |
|---|
| 886 | #if GIET_DEBUG_NIC |
|---|
| 887 | _printf("\n[GIET DEBUG NIC] Task %d exit _sys_nic_start() at cycle %d\n", |
|---|
| 888 | thread , _get_proctime() ); |
|---|
| 889 | #endif |
|---|
| 890 | |
|---|
| 891 | return 0; |
|---|
| 892 | } // end _sys_nic_start() |
|---|
| 893 | |
|---|
| 894 | |
|---|
| 895 | ////////////////////////////////////// |
|---|
| 896 | int _sys_nic_move( unsigned int is_rx, |
|---|
| 897 | unsigned int channel, |
|---|
| 898 | void* buffer ) |
|---|
| 899 | { |
|---|
| 900 | |
|---|
| 901 | #if GIET_DEBUG_NIC |
|---|
| 902 | unsigned int thread = _get_context_slot( CTX_TRDID_ID ); |
|---|
| 903 | _printf("\n[GIET DEBUG NIC] Task %d enters _sys_nic_move() at cycle %d\n", |
|---|
| 904 | thread , _get_proctime() ); |
|---|
| 905 | #endif |
|---|
| 906 | |
|---|
| 907 | // check NIC channel index |
|---|
| 908 | if ( channel >= NB_NIC_CHANNELS ) |
|---|
| 909 | { |
|---|
| 910 | _printf("\n[GIET_ERROR] in _sys_nic_move() : illegal NIC channel index\n"); |
|---|
| 911 | return -1; |
|---|
| 912 | } |
|---|
| 913 | |
|---|
| 914 | // get kernel chbuf virtual address |
|---|
| 915 | nic_chbuf_t* chbuf; |
|---|
| 916 | if ( is_rx ) chbuf = &_nic_rx_chbuf[channel]; |
|---|
| 917 | else chbuf = &_nic_tx_chbuf[channel]; |
|---|
| 918 | |
|---|
| 919 | // get xmax / ymax parameters |
|---|
| 920 | unsigned int xmax = chbuf->xmax; |
|---|
| 921 | unsigned int ymax = chbuf->ymax; |
|---|
| 922 | |
|---|
| 923 | // get cluster coordinates for the processor running the calling task |
|---|
| 924 | unsigned int procid = _get_procid(); |
|---|
| 925 | unsigned int cx = procid >> (Y_WIDTH + P_WIDTH); |
|---|
| 926 | unsigned int cy = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
|---|
| 927 | |
|---|
| 928 | // check processor coordinates / (xmax,ymax) |
|---|
| 929 | if ( cx >= xmax ) |
|---|
| 930 | { |
|---|
| 931 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor X coordinate = %d" |
|---|
| 932 | " / xmax = %d\n", cx , xmax ); |
|---|
| 933 | return -1; |
|---|
| 934 | } |
|---|
| 935 | if ( cy >= ymax ) |
|---|
| 936 | { |
|---|
| 937 | _printf("\n[GIET_ERROR] in _sys_nic_move() : processor Y coordinate = %d" |
|---|
| 938 | " / ymax = %d\n", cy , ymax ); |
|---|
| 939 | return -1; |
|---|
| 940 | } |
|---|
| 941 | |
|---|
| 942 | unsigned long long user_buffer_paddr; // user buffer physical address |
|---|
| 943 | unsigned long long kernel_buffer_paddr; // kernel buffer physical address |
|---|
| 944 | unsigned long long kernel_chbuf_paddr; // kernel chbuf physical address |
|---|
| 945 | unsigned long long buffer_descriptor; // kernel buffer descriptor |
|---|
| 946 | unsigned long long buffer_desc_paddr; // kernel buffer descriptor paddr |
|---|
| 947 | unsigned int index; // kernel buffer index in chbuf |
|---|
| 948 | unsigned int flags; // for _v2P_translate |
|---|
| 949 | |
|---|
| 950 | // Compute user buffer physical address and check access rights |
|---|
| 951 | user_buffer_paddr = _v2p_translate( (unsigned int)buffer , &flags ); |
|---|
| 952 | |
|---|
| 953 | if ( (flags & PTE_U) == 0 ) |
|---|
| 954 | { |
|---|
| 955 | _printf("\n[GIET ERROR] in _sys_nic_tx_move() : illegal buffer address\n"); |
|---|
| 956 | return -1; |
|---|
| 957 | } |
|---|
| 958 | |
|---|
| 959 | #if GIET_DEBUG_NIC |
|---|
| 960 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() get user buffer : paddr = %l\n", |
|---|
| 961 | thread, user_buffer_paddr ); |
|---|
| 962 | #endif |
|---|
| 963 | |
|---|
| 964 | // compute kernel chbuf physical address (required for sync) |
|---|
| 965 | kernel_chbuf_paddr = _v2p_translate( (unsigned int)chbuf , &flags ); |
|---|
| 966 | |
|---|
| 967 | // poll local kernel container status until success |
|---|
| 968 | while ( 1 ) |
|---|
| 969 | { |
|---|
| 970 | // compute buffer index and buffer descriptor paddr |
|---|
| 971 | index = (ymax * cx) + cy; |
|---|
| 972 | buffer_desc_paddr = kernel_chbuf_paddr + (index<<6); |
|---|
| 973 | |
|---|
| 974 | // inval buffer descriptor in L2 before read in L2 |
|---|
| 975 | _mmc_inval( buffer_desc_paddr , 8 ); |
|---|
| 976 | buffer_descriptor = chbuf->buffer[index].desc; |
|---|
| 977 | |
|---|
| 978 | #if GIET_DEBUG_NIC |
|---|
| 979 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() read buf_desc %d at cycle %d\n" |
|---|
| 980 | " paddr = %l / buffer descriptor = %l\n", |
|---|
| 981 | thread, index, _get_proctime(), buffer_desc_paddr, buffer_descriptor ); |
|---|
| 982 | #endif |
|---|
| 983 | |
|---|
| 984 | // test buffer status and break if found |
|---|
| 985 | if ( ( is_rx != 0 ) && (buffer_descriptor >> 63) == 1 ) break; |
|---|
| 986 | if ( ( is_rx == 0 ) && (buffer_descriptor >> 63) == 0 ) break; |
|---|
| 987 | } |
|---|
| 988 | |
|---|
| 989 | // compute kernel buffer physical address |
|---|
| 990 | kernel_buffer_paddr = buffer_descriptor & 0x0000FFFFFFFFFFFFULL; |
|---|
| 991 | |
|---|
| 992 | // move one container |
|---|
| 993 | if ( is_rx ) // RX transfer |
|---|
| 994 | { |
|---|
| 995 | // inval kernel buffer in L2 before read in L2 |
|---|
| 996 | _mmc_inval( kernel_buffer_paddr, NIC_CONTAINER_SIZE ); |
|---|
| 997 | |
|---|
| 998 | // transfer data from kernel buffer to user buffer |
|---|
| 999 | _physical_memcpy( user_buffer_paddr, |
|---|
| 1000 | kernel_buffer_paddr, |
|---|
| 1001 | NIC_CONTAINER_SIZE ); |
|---|
| 1002 | #if GIET_DEBUG_NIC |
|---|
| 1003 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer kernel buffer %l\n" |
|---|
| 1004 | " to user buffer %l at cycle %d\n", |
|---|
| 1005 | thread , kernel_buffer_paddr , user_buffer_paddr , _get_proctime() ); |
|---|
| 1006 | #endif |
|---|
| 1007 | |
|---|
| 1008 | } |
|---|
| 1009 | else // TX transfer |
|---|
| 1010 | { |
|---|
| 1011 | // transfer data from user buffer to kernel buffer |
|---|
| 1012 | _physical_memcpy( kernel_buffer_paddr, |
|---|
| 1013 | user_buffer_paddr, |
|---|
| 1014 | NIC_CONTAINER_SIZE ); |
|---|
| 1015 | |
|---|
| 1016 | // sync kernel buffer in L2 after write in L2 |
|---|
| 1017 | _mmc_sync( kernel_buffer_paddr, NIC_CONTAINER_SIZE ); |
|---|
| 1018 | |
|---|
| 1019 | #if GIET_DEBUG_NIC |
|---|
| 1020 | _printf("\n[GIET DEBUG NIC] Task %d in _sys_nic_move() transfer " |
|---|
| 1021 | "user buffer %l to kernel buffer %l at cycle %d\n", |
|---|
| 1022 | thread , user_buffer_paddr , kernel_buffer_paddr , _get_proctime() ); |
|---|
| 1023 | #endif |
|---|
| 1024 | |
|---|
| 1025 | } |
|---|
| 1026 | |
|---|
| 1027 | // update kernel chbuf status |
|---|
| 1028 | if ( is_rx ) chbuf->buffer[index].desc = kernel_buffer_paddr & 0x0000FFFFFFFFFFFFULL; |
|---|
| 1029 | else chbuf->buffer[index].desc = kernel_buffer_paddr | 0x8000000000000000ULL; |
|---|
| 1030 | |
|---|
| 1031 | // sync kernel chbuf in L2 after write in L2 |
|---|
| 1032 | _mmc_sync( kernel_chbuf_paddr + (index<<6) , 8 ); |
|---|
| 1033 | |
|---|
| 1034 | #if GIET_DEBUG_NIC |
|---|
| 1035 | _printf("\n[GIET DEBUG NIC] Task %d get buffer %d and exit _sys_nic_move() at cycle %d\n", |
|---|
| 1036 | thread , index , _get_proctime() ); |
|---|
| 1037 | #endif |
|---|
| 1038 | |
|---|
| 1039 | return 0; |
|---|
| 1040 | } // end _sys_nic_move() |
|---|
| 1041 | |
|---|
| 1042 | |
|---|
| 1043 | //////////////////////////////////////// |
|---|
| 1044 | int _sys_nic_stop( unsigned int is_rx, |
|---|
| 1045 | unsigned int channel ) |
|---|
| 1046 | { |
|---|
| 1047 | unsigned int nic_channel; |
|---|
| 1048 | unsigned int cma_channel; |
|---|
| 1049 | |
|---|
| 1050 | // get NIC channel index and CMA channel index |
|---|
| 1051 | if ( is_rx ) |
|---|
| 1052 | { |
|---|
| 1053 | nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
|---|
| 1054 | cma_channel = _get_context_slot( CTX_CMA_RX_ID ); |
|---|
| 1055 | } |
|---|
| 1056 | else |
|---|
| 1057 | { |
|---|
| 1058 | nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
|---|
| 1059 | cma_channel = _get_context_slot( CTX_CMA_TX_ID ); |
|---|
| 1060 | } |
|---|
| 1061 | |
|---|
| 1062 | // check NIC and CMA channels index |
|---|
| 1063 | if ( nic_channel != channel ) |
|---|
| 1064 | { |
|---|
| 1065 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal NIC channel\n"); |
|---|
| 1066 | return -1; |
|---|
| 1067 | } |
|---|
| 1068 | if ( cma_channel >= NB_CMA_CHANNELS ) |
|---|
| 1069 | { |
|---|
| 1070 | _printf("\n[GIET_ERROR] in _sys_nic_stop(): illegal CMA channel\n"); |
|---|
| 1071 | return -1; |
|---|
| 1072 | } |
|---|
| 1073 | |
|---|
| 1074 | // desactivates the NIC channel |
|---|
| 1075 | _nic_channel_stop( nic_channel, is_rx ); |
|---|
| 1076 | |
|---|
| 1077 | // desactivates the CMA channel |
|---|
| 1078 | _cma_set_register( cma_channel, CHBUF_RUN , 0 ); |
|---|
| 1079 | |
|---|
| 1080 | return 0; |
|---|
| 1081 | } // end _sys_nic_stop() |
|---|
| 1082 | |
|---|
| 1083 | //////////////////////////////////////// |
|---|
| 1084 | int _sys_nic_clear( unsigned int is_rx, |
|---|
| 1085 | unsigned int channel ) |
|---|
| 1086 | { |
|---|
| 1087 | unsigned int nic_channel; |
|---|
| 1088 | |
|---|
| 1089 | // get NIC channel |
|---|
| 1090 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
|---|
| 1091 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
|---|
| 1092 | |
|---|
| 1093 | if ( nic_channel != channel ) |
|---|
| 1094 | { |
|---|
| 1095 | _printf("\n[GIET_ERROR] in _sys_nic_clear(): illegal NIC channel\n"); |
|---|
| 1096 | return -1; |
|---|
| 1097 | } |
|---|
| 1098 | |
|---|
| 1099 | if ( is_rx ) |
|---|
| 1100 | { |
|---|
| 1101 | _nic_set_global_register( NIC_G_NPKT_RX_G2S_RECEIVED , 0 ); |
|---|
| 1102 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL , 0 ); |
|---|
| 1103 | _nic_set_global_register( NIC_G_NPKT_RX_DES_TOO_BIG , 0 ); |
|---|
| 1104 | _nic_set_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL , 0 ); |
|---|
| 1105 | _nic_set_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL , 0 ); |
|---|
| 1106 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_RECEIVED , 0 ); |
|---|
| 1107 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST , 0 ); |
|---|
| 1108 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL , 0 ); |
|---|
| 1109 | _nic_set_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL , 0 ); |
|---|
| 1110 | } |
|---|
| 1111 | else |
|---|
| 1112 | { |
|---|
| 1113 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED , 0 ); |
|---|
| 1114 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TRANSMIT , 0 ); |
|---|
| 1115 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG , 0 ); |
|---|
| 1116 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL , 0 ); |
|---|
| 1117 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL , 0 ); |
|---|
| 1118 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS , 0 ); |
|---|
| 1119 | _nic_set_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST , 0 ); |
|---|
| 1120 | } |
|---|
| 1121 | return 0; |
|---|
| 1122 | } // en _sys_nic_clear() |
|---|
| 1123 | |
|---|
| 1124 | //////////////////////////////////////// |
|---|
| 1125 | int _sys_nic_stats( unsigned int is_rx, |
|---|
| 1126 | unsigned int channel ) |
|---|
| 1127 | { |
|---|
| 1128 | unsigned int nic_channel; |
|---|
| 1129 | |
|---|
| 1130 | // get NIC channel |
|---|
| 1131 | if ( is_rx ) nic_channel = _get_context_slot( CTX_NIC_RX_ID ); |
|---|
| 1132 | else nic_channel = _get_context_slot( CTX_NIC_TX_ID ); |
|---|
| 1133 | |
|---|
| 1134 | if ( nic_channel != channel ) |
|---|
| 1135 | { |
|---|
| 1136 | _printf("\n[GIET_ERROR] in _sys_nic_stats(): illegal NIC channel\n"); |
|---|
| 1137 | return -1; |
|---|
| 1138 | } |
|---|
| 1139 | |
|---|
| 1140 | if ( is_rx ) |
|---|
| 1141 | { |
|---|
| 1142 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_RX_G2S_RECEIVED ); |
|---|
| 1143 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_SMALL ); |
|---|
| 1144 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_RX_DES_TOO_BIG ); |
|---|
| 1145 | unsigned int fifo_full = _nic_get_global_register( NIC_G_NPKT_RX_DES_MFIFO_FULL ); |
|---|
| 1146 | unsigned int crc_fail = _nic_get_global_register( NIC_G_NPKT_RX_DES_CRC_FAIL ); |
|---|
| 1147 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_BROADCAST ); |
|---|
| 1148 | unsigned int dst_fail = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_DST_FAIL ); |
|---|
| 1149 | unsigned int ch_full = _nic_get_global_register( NIC_G_NPKT_RX_DISPATCH_CH_FULL ); |
|---|
| 1150 | |
|---|
| 1151 | _printf("\n### Network Controller RX Statistics ###\n" |
|---|
| 1152 | "- packets received : %d\n" |
|---|
| 1153 | "- too small : %d\n" |
|---|
| 1154 | "- too big : %d\n" |
|---|
| 1155 | "- fifo full : %d\n" |
|---|
| 1156 | "- crc fail : %d\n" |
|---|
| 1157 | "- dst mac fail : %d\n" |
|---|
| 1158 | "- channel full : %d\n" |
|---|
| 1159 | "- broadcast : %d\n", |
|---|
| 1160 | received, |
|---|
| 1161 | too_small, |
|---|
| 1162 | too_big, |
|---|
| 1163 | fifo_full, |
|---|
| 1164 | crc_fail, |
|---|
| 1165 | dst_fail, |
|---|
| 1166 | ch_full, |
|---|
| 1167 | broadcast ); |
|---|
| 1168 | } |
|---|
| 1169 | else |
|---|
| 1170 | { |
|---|
| 1171 | unsigned int received = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_RECEIVED ); |
|---|
| 1172 | unsigned int too_big = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_BIG ); |
|---|
| 1173 | unsigned int too_small = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_TOO_SMALL ); |
|---|
| 1174 | unsigned int src_fail = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_SRC_FAIL ); |
|---|
| 1175 | unsigned int bypass = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BYPASS ); |
|---|
| 1176 | unsigned int broadcast = _nic_get_global_register( NIC_G_NPKT_TX_DISPATCH_BROADCAST ); |
|---|
| 1177 | |
|---|
| 1178 | _printf("\n### Network Controller TX Statistics ###\n" |
|---|
| 1179 | "- packets received : %d\n" |
|---|
| 1180 | "- too small : %d\n" |
|---|
| 1181 | "- too big : %d\n" |
|---|
| 1182 | "- src mac fail : %d\n" |
|---|
| 1183 | "- bypass : %d\n" |
|---|
| 1184 | "- broadcast : %d\n", |
|---|
| 1185 | received, |
|---|
| 1186 | too_big, |
|---|
| 1187 | too_small, |
|---|
| 1188 | src_fail, |
|---|
| 1189 | bypass, |
|---|
| 1190 | broadcast ); |
|---|
| 1191 | } |
|---|
| 1192 | return 0; |
|---|
| 1193 | } // end _sys_nic_stats() |
|---|
| 1194 | |
|---|
| 1195 | ///////////////////////////////////////////////////////////////////////////////////////// |
|---|
| 1196 | // FBF related syscall handlers |
|---|
| 1197 | ///////////////////////////////////////////////////////////////////////////////////////// |
|---|
| 1198 | |
|---|
| 1199 | ///////////////////////////////////////////// |
|---|
| 1200 | int _sys_fbf_sync_write( unsigned int offset, |
|---|
| 1201 | void* buffer, |
|---|
| 1202 | unsigned int length ) |
|---|
| 1203 | { |
|---|
| 1204 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
|---|
| 1205 | memcpy( fbf_address, buffer, length); |
|---|
| 1206 | |
|---|
| 1207 | return 0; |
|---|
| 1208 | } |
|---|
| 1209 | |
|---|
| 1210 | ///////////////////////////////////////////// |
|---|
| 1211 | int _sys_fbf_sync_read( unsigned int offset, |
|---|
| 1212 | void* buffer, |
|---|
| 1213 | unsigned int length ) |
|---|
| 1214 | { |
|---|
| 1215 | char* fbf_address = (char *)SEG_FBF_BASE + offset; |
|---|
| 1216 | memcpy( buffer, fbf_address, length); |
|---|
| 1217 | |
|---|
| 1218 | return 0; |
|---|
| 1219 | } |
|---|
| 1220 | |
|---|
| 1221 | //////////////////////// |
|---|
| 1222 | int _sys_fbf_cma_alloc() |
|---|
| 1223 | { |
|---|
| 1224 | // get a new CMA channel index |
|---|
| 1225 | unsigned int channel = _atomic_increment( &_cma_channel_allocator, 1 ); |
|---|
| 1226 | |
|---|
| 1227 | if ( channel >= NB_CMA_CHANNELS ) |
|---|
| 1228 | { |
|---|
| 1229 | _printf("\n[GIET ERROR] in _sys_fbf_cma_alloc() : not enough CMA channels\n"); |
|---|
| 1230 | return -1; |
|---|
| 1231 | } |
|---|
| 1232 | else |
|---|
| 1233 | { |
|---|
| 1234 | _set_context_slot( CTX_CMA_FB_ID, channel ); |
|---|
| 1235 | return 0; |
|---|
| 1236 | } |
|---|
| 1237 | } // end sys_fbf_cma_alloc() |
|---|
| 1238 | |
|---|
| 1239 | //////////////////////////////////////////// |
|---|
| 1240 | int _sys_fbf_cma_start( void* vbase0, |
|---|
| 1241 | void* vbase1, |
|---|
| 1242 | unsigned int length ) |
|---|
| 1243 | { |
|---|
| 1244 | #if NB_CMA_CHANNELS > 0 |
|---|
| 1245 | |
|---|
| 1246 | unsigned int vaddr; // virtual address |
|---|
| 1247 | unsigned int flags; // for _v2p_translate() |
|---|
| 1248 | |
|---|
| 1249 | // get channel index |
|---|
| 1250 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
|---|
| 1251 | |
|---|
| 1252 | if ( channel >= NB_CMA_CHANNELS ) |
|---|
| 1253 | { |
|---|
| 1254 | _printf("\n[GIET ERROR] in _fbf_cma_start() : CMA channel index too large\n"); |
|---|
| 1255 | return -1; |
|---|
| 1256 | } |
|---|
| 1257 | |
|---|
| 1258 | #if GIET_DEBUG_FBF_CMA |
|---|
| 1259 | _printf("\n[FBF_CMA DEBUG] enters _sys_fbf_cma_start()\n" |
|---|
| 1260 | " - channel = %d\n" |
|---|
| 1261 | " - buf0 vbase = %x\n" |
|---|
| 1262 | " - buf1 vbase = %x\n" |
|---|
| 1263 | " - buffer size = %x\n", |
|---|
| 1264 | channel, |
|---|
| 1265 | (unsigned int)vbase0, |
|---|
| 1266 | (unsigned int)vbase1, |
|---|
| 1267 | length ); |
|---|
| 1268 | #endif |
|---|
| 1269 | |
|---|
| 1270 | // checking user buffers virtual addresses and length alignment |
|---|
| 1271 | if ( ((unsigned int)vbase0 & 0x3) || |
|---|
| 1272 | ((unsigned int)vbase1 & 0x3) || |
|---|
| 1273 | (length & 0x3) ) |
|---|
| 1274 | { |
|---|
| 1275 | _printf("\n[GIET ERROR] in _fbf_cma_start() : user buffer not aligned\n"); |
|---|
| 1276 | return -1; |
|---|
| 1277 | } |
|---|
| 1278 | |
|---|
| 1279 | // compute frame buffer physical address and initialize _fbf_chbuf[channel] |
|---|
| 1280 | vaddr = (unsigned int)SEG_FBF_BASE; |
|---|
| 1281 | _fbf_chbuf[channel].fbf.desc = _v2p_translate( vaddr , &flags ); |
|---|
| 1282 | |
|---|
| 1283 | // Compute user buffer 0 physical addresses and intialize _fbf_chbuf[channel] |
|---|
| 1284 | vaddr = (unsigned int)vbase0; |
|---|
| 1285 | _fbf_chbuf[channel].buf0.desc = _v2p_translate( vaddr , &flags ); |
|---|
| 1286 | |
|---|
| 1287 | if ((flags & PTE_U) == 0) |
|---|
| 1288 | { |
|---|
| 1289 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf0 not in user space\n"); |
|---|
| 1290 | return -1; |
|---|
| 1291 | } |
|---|
| 1292 | |
|---|
| 1293 | // Compute user buffer 1 physical addresses and intialize _fbf_chbuf[channel] |
|---|
| 1294 | vaddr = (unsigned int)vbase1; |
|---|
| 1295 | _fbf_chbuf[channel].buf1.desc = _v2p_translate( vaddr , &flags ); |
|---|
| 1296 | |
|---|
| 1297 | if ((flags & PTE_U) == 0) |
|---|
| 1298 | { |
|---|
| 1299 | _printf("\n[GIET ERROR] in _fbf_cma_start() : buf1 not in user space\n"); |
|---|
| 1300 | return -1; |
|---|
| 1301 | } |
|---|
| 1302 | |
|---|
| 1303 | // initializes buffer length |
|---|
| 1304 | _fbf_chbuf[channel].length = length; |
|---|
| 1305 | |
|---|
| 1306 | // Compute and register physical adress of the fbf_chbuf descriptor |
|---|
| 1307 | vaddr = (unsigned int)&_fbf_chbuf[channel]; |
|---|
| 1308 | _fbf_chbuf_paddr[channel] = _v2p_translate( vaddr , &flags ); |
|---|
| 1309 | |
|---|
| 1310 | if ( USE_IOB ) |
|---|
| 1311 | { |
|---|
| 1312 | // SYNC request for fbf_chbuf descriptor |
|---|
| 1313 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof( fbf_chbuf_t ) ); |
|---|
| 1314 | } |
|---|
| 1315 | |
|---|
| 1316 | #if GIET_DEBUG_FBF_CMA |
|---|
| 1317 | _printf(" - fbf pbase = %l\n" |
|---|
| 1318 | " - buf0 pbase = %l\n" |
|---|
| 1319 | " - buf1 pbase = %l\n" |
|---|
| 1320 | " - chbuf pbase = %l\n", |
|---|
| 1321 | _fbf_chbuf[channel].fbf.desc, |
|---|
| 1322 | _fbf_chbuf[channel].buf0.desc, |
|---|
| 1323 | _fbf_chbuf[channel].buf1.desc, |
|---|
| 1324 | _fbf_chbuf_paddr[channel] ); |
|---|
| 1325 | #endif |
|---|
| 1326 | |
|---|
| 1327 | // start CMA transfer |
|---|
| 1328 | unsigned long long paddr = _fbf_chbuf_paddr[channel]; |
|---|
| 1329 | unsigned int src_chbuf_paddr_lsb = (unsigned int)(paddr & 0xFFFFFFFF); |
|---|
| 1330 | unsigned int src_chbuf_paddr_ext = (unsigned int)(paddr >> 32); |
|---|
| 1331 | unsigned int dst_chbuf_paddr_lsb = src_chbuf_paddr_lsb + 128; |
|---|
| 1332 | unsigned int dst_chbuf_paddr_ext = src_chbuf_paddr_ext; |
|---|
| 1333 | |
|---|
| 1334 | _cma_set_register( channel, CHBUF_SRC_DESC , src_chbuf_paddr_lsb ); |
|---|
| 1335 | _cma_set_register( channel, CHBUF_SRC_EXT , src_chbuf_paddr_ext ); |
|---|
| 1336 | _cma_set_register( channel, CHBUF_SRC_NBUFS, 2 ); |
|---|
| 1337 | _cma_set_register( channel, CHBUF_DST_DESC , dst_chbuf_paddr_lsb ); |
|---|
| 1338 | _cma_set_register( channel, CHBUF_DST_EXT , dst_chbuf_paddr_ext ); |
|---|
| 1339 | _cma_set_register( channel, CHBUF_DST_NBUFS, 1 ); |
|---|
| 1340 | _cma_set_register( channel, CHBUF_BUF_SIZE , length ); |
|---|
| 1341 | _cma_set_register( channel, CHBUF_PERIOD , 300 ); |
|---|
| 1342 | _cma_set_register( channel, CHBUF_RUN , 1 ); |
|---|
| 1343 | |
|---|
| 1344 | return 0; |
|---|
| 1345 | |
|---|
| 1346 | #else |
|---|
| 1347 | |
|---|
| 1348 | _printf("\n[GIET ERROR] in _sys_fbf_cma_start() : NB_CMA_CHANNELS = 0\n"); |
|---|
| 1349 | return -1; |
|---|
| 1350 | |
|---|
| 1351 | #endif |
|---|
| 1352 | } // end _sys_fbf_cma_start() |
|---|
| 1353 | |
|---|
| 1354 | ///////////////////////////////////////////////////// |
|---|
| 1355 | int _sys_fbf_cma_display( unsigned int buffer_index ) |
|---|
| 1356 | { |
|---|
| 1357 | #if NB_CMA_CHANNELS > 0 |
|---|
| 1358 | |
|---|
| 1359 | volatile unsigned int full = 1; |
|---|
| 1360 | |
|---|
| 1361 | // get channel index |
|---|
| 1362 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
|---|
| 1363 | |
|---|
| 1364 | if ( channel >= NB_CMA_CHANNELS ) |
|---|
| 1365 | { |
|---|
| 1366 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : " |
|---|
| 1367 | "CMA channel index too large\n"); |
|---|
| 1368 | return -1; |
|---|
| 1369 | } |
|---|
| 1370 | |
|---|
| 1371 | // get fbf_chbuf descriptor pointer |
|---|
| 1372 | fbf_chbuf_t* pdesc = &_fbf_chbuf[channel]; |
|---|
| 1373 | |
|---|
| 1374 | #if GIET_DEBUG_FBF_CMA |
|---|
| 1375 | _printf("\n[FBF_CMA DEBUG] enters _sys_fb_cma_display()\n" |
|---|
| 1376 | " - cma channel = %d\n" |
|---|
| 1377 | " - buffer index = %d\n" |
|---|
| 1378 | " - buf0_desc value = %l\n" |
|---|
| 1379 | " - buf1_desc value = %l\n" |
|---|
| 1380 | " - fbf_desc value = %l\n", |
|---|
| 1381 | channel , buffer_index, |
|---|
| 1382 | _fbf_chbuf[channel].buf0.desc, |
|---|
| 1383 | _fbf_chbuf[channel].buf1.desc, |
|---|
| 1384 | _fbf_chbuf[channel].fbf.desc ); |
|---|
| 1385 | #endif |
|---|
| 1386 | |
|---|
| 1387 | if ( buffer_index == 0 ) // user buffer 0 |
|---|
| 1388 | { |
|---|
| 1389 | // INVAL L1 and L2 cache copies of user buffer descriptor, |
|---|
| 1390 | // because it has been modified in RAM by the CMA component |
|---|
| 1391 | _dcache_buf_invalidate( (unsigned int)pdesc , sizeof(buffer_descriptor_t) ); |
|---|
| 1392 | _mmc_inval( _fbf_chbuf_paddr[channel] , sizeof(buffer_descriptor_t) ); |
|---|
| 1393 | |
|---|
| 1394 | // waiting user buffer released by the CMA component) |
|---|
| 1395 | while ( full ) |
|---|
| 1396 | { |
|---|
| 1397 | full = (unsigned int)(pdesc->buf0.desc >> 63); |
|---|
| 1398 | } |
|---|
| 1399 | |
|---|
| 1400 | // SYNC request for the user buffer, because |
|---|
| 1401 | // it will be read from XRAM by the CMA component |
|---|
| 1402 | _mmc_sync( pdesc->buf0.desc , pdesc->length ); |
|---|
| 1403 | |
|---|
| 1404 | // set user buffer status |
|---|
| 1405 | pdesc->buf0.desc = pdesc->buf0.desc | 0x8000000000000000ULL; |
|---|
| 1406 | |
|---|
| 1407 | // reset fbf buffer status |
|---|
| 1408 | pdesc->fbf.desc = pdesc->fbf.desc & 0x7FFFFFFFFFFFFFFFULL; |
|---|
| 1409 | |
|---|
| 1410 | // SYNC request, because these buffer descriptors |
|---|
| 1411 | // will be read from XRAM by the CMA component |
|---|
| 1412 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof(fbf_chbuf_t) ); |
|---|
| 1413 | } |
|---|
| 1414 | else // user buffer 1 |
|---|
| 1415 | { |
|---|
| 1416 | // INVAL L1 and L2 cache copies of user buffer descriptor, |
|---|
| 1417 | // because it has been modified in RAM by the CMA component |
|---|
| 1418 | _dcache_buf_invalidate( (unsigned int)pdesc + 64, sizeof(buffer_descriptor_t) ); |
|---|
| 1419 | _mmc_inval( _fbf_chbuf_paddr[channel] + 64, sizeof(buffer_descriptor_t) ); |
|---|
| 1420 | |
|---|
| 1421 | // waiting user buffer released by the CMA component) |
|---|
| 1422 | while ( full ) |
|---|
| 1423 | { |
|---|
| 1424 | full = (unsigned int)(pdesc->buf1.desc >> 63); |
|---|
| 1425 | } |
|---|
| 1426 | |
|---|
| 1427 | // SYNC request for the user buffer, because |
|---|
| 1428 | // it will be read from XRAM by the CMA component |
|---|
| 1429 | _mmc_sync( pdesc->buf1.desc , pdesc->length ); |
|---|
| 1430 | |
|---|
| 1431 | // set user buffer status |
|---|
| 1432 | pdesc->buf1.desc = pdesc->buf1.desc | 0x8000000000000000ULL; |
|---|
| 1433 | |
|---|
| 1434 | // reset fbf buffer status |
|---|
| 1435 | pdesc->fbf.desc = pdesc->fbf.desc & 0x7FFFFFFFFFFFFFFFULL; |
|---|
| 1436 | |
|---|
| 1437 | // SYNC request, because these buffer descriptors |
|---|
| 1438 | // will be read from XRAM by the CMA component |
|---|
| 1439 | _mmc_sync( _fbf_chbuf_paddr[channel] , sizeof(fbf_chbuf_t) ); |
|---|
| 1440 | } |
|---|
| 1441 | |
|---|
| 1442 | #if GIET_DEBUG_FBF_CMA |
|---|
| 1443 | _printf("\n[FBF_CMA DEBUG] exit _sys_fb_cma_display()\n" |
|---|
| 1444 | " - buf0_desc value = %l\n" |
|---|
| 1445 | " - buf1_desc value = %l\n" |
|---|
| 1446 | " - fbf_desc value = %l\n", |
|---|
| 1447 | _fbf_chbuf[channel].buf0.desc, |
|---|
| 1448 | _fbf_chbuf[channel].buf1.desc, |
|---|
| 1449 | _fbf_chbuf[channel].fbf.desc ); |
|---|
| 1450 | #endif |
|---|
| 1451 | |
|---|
| 1452 | return 0; |
|---|
| 1453 | |
|---|
| 1454 | #else |
|---|
| 1455 | |
|---|
| 1456 | _printf("\n[GIET ERROR] in _sys_fbf_cma_display() : no CMA channel allocated\n"); |
|---|
| 1457 | return -1; |
|---|
| 1458 | |
|---|
| 1459 | #endif |
|---|
| 1460 | } // end _sys_fbf_cma_display() |
|---|
| 1461 | |
|---|
| 1462 | |
|---|
| 1463 | /////////////////////// |
|---|
| 1464 | int _sys_fbf_cma_stop() |
|---|
| 1465 | { |
|---|
| 1466 | #if NB_CMA_CHANNELS > 0 |
|---|
| 1467 | |
|---|
| 1468 | // get channel index |
|---|
| 1469 | unsigned int channel = _get_context_slot( CTX_CMA_FB_ID ); |
|---|
| 1470 | |
|---|
| 1471 | if ( channel >= NB_CMA_CHANNELS ) |
|---|
| 1472 | { |
|---|
| 1473 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : CMA channel index too large\n"); |
|---|
| 1474 | return -1; |
|---|
| 1475 | } |
|---|
| 1476 | |
|---|
| 1477 | // Desactivate CMA channel |
|---|
| 1478 | _cma_set_register( channel, CHBUF_RUN, 0 ); |
|---|
| 1479 | |
|---|
| 1480 | return 0; |
|---|
| 1481 | |
|---|
| 1482 | #else |
|---|
| 1483 | |
|---|
| 1484 | _printf("\n[GIET ERROR] in _sys_fbf_cma_stop() : no CMA channel allocated\n"); |
|---|
| 1485 | return -1; |
|---|
| 1486 | |
|---|
| 1487 | #endif |
|---|
| 1488 | } // end _sys_fbf_cma_stop() |
|---|
| 1489 | |
|---|
| 1490 | |
|---|
| 1491 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 1492 | // Miscelaneous syscall handlers |
|---|
| 1493 | ////////////////////////////////////////////////////////////////////////////// |
|---|
| 1494 | |
|---|
| 1495 | /////////////// |
|---|
| 1496 | int _sys_ukn() |
|---|
| 1497 | { |
|---|
| 1498 | _printf("\n[GIET ERROR] Undefined System Call / EPC = %x\n", _get_epc() ); |
|---|
| 1499 | return -1; |
|---|
| 1500 | } |
|---|
| 1501 | |
|---|
| 1502 | //////////////////////////////////// |
|---|
| 1503 | int _sys_proc_xyp( unsigned int* x, |
|---|
| 1504 | unsigned int* y, |
|---|
| 1505 | unsigned int* p ) |
|---|
| 1506 | { |
|---|
| 1507 | unsigned int gpid = _get_procid(); // global processor index from CPO register |
|---|
| 1508 | |
|---|
| 1509 | *x = (gpid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
|---|
| 1510 | *y = (gpid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
|---|
| 1511 | *p = gpid & ((1<<P_WIDTH)-1); |
|---|
| 1512 | |
|---|
| 1513 | return 0; |
|---|
| 1514 | } |
|---|
| 1515 | |
|---|
| 1516 | ////////////////////////////////// |
|---|
| 1517 | int _sys_task_exit( char* string ) |
|---|
| 1518 | { |
|---|
| 1519 | unsigned int date = _get_proctime(); |
|---|
| 1520 | |
|---|
| 1521 | unsigned int gpid = _get_procid(); |
|---|
| 1522 | unsigned int cluster_xy = gpid >> P_WIDTH; |
|---|
| 1523 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
|---|
| 1524 | unsigned int x = cluster_xy >> Y_WIDTH; |
|---|
| 1525 | unsigned int lpid = gpid & ((1<<P_WIDTH)-1); |
|---|
| 1526 | |
|---|
| 1527 | unsigned int task_id = _get_context_slot(CTX_LTID_ID); |
|---|
| 1528 | |
|---|
| 1529 | // print exit message |
|---|
| 1530 | _printf("\n[GIET] Exit task %d on processor[%d,%d,%d] at cycle %d" |
|---|
| 1531 | "\n Cause : %s\n\n", |
|---|
| 1532 | task_id, x, y, lpid, date, string ); |
|---|
| 1533 | |
|---|
| 1534 | // goes to sleeping state |
|---|
| 1535 | _set_context_slot(CTX_RUN_ID, 0); |
|---|
| 1536 | |
|---|
| 1537 | // deschedule |
|---|
| 1538 | _sys_context_switch(); |
|---|
| 1539 | |
|---|
| 1540 | return 0; |
|---|
| 1541 | } |
|---|
| 1542 | |
|---|
| 1543 | ///////////////////////// |
|---|
| 1544 | int _sys_context_switch() |
|---|
| 1545 | { |
|---|
| 1546 | unsigned int save_sr; |
|---|
| 1547 | |
|---|
| 1548 | _it_disable( &save_sr ); |
|---|
| 1549 | _ctx_switch(); |
|---|
| 1550 | _it_restore( &save_sr ); |
|---|
| 1551 | |
|---|
| 1552 | return 0; |
|---|
| 1553 | } |
|---|
| 1554 | |
|---|
| 1555 | //////////////////////// |
|---|
| 1556 | int _sys_local_task_id() |
|---|
| 1557 | { |
|---|
| 1558 | return _get_context_slot(CTX_LTID_ID); |
|---|
| 1559 | } |
|---|
| 1560 | |
|---|
| 1561 | ///////////////////////// |
|---|
| 1562 | int _sys_global_task_id() |
|---|
| 1563 | { |
|---|
| 1564 | return _get_context_slot(CTX_GTID_ID); |
|---|
| 1565 | } |
|---|
| 1566 | |
|---|
| 1567 | //////////////////// |
|---|
| 1568 | int _sys_thread_id() |
|---|
| 1569 | { |
|---|
| 1570 | return _get_context_slot(CTX_TRDID_ID); |
|---|
| 1571 | } |
|---|
| 1572 | |
|---|
| 1573 | //////////////////////////////////////////// |
|---|
| 1574 | int _sys_procs_number( unsigned int* x_size, |
|---|
| 1575 | unsigned int* y_size, |
|---|
| 1576 | unsigned int* nprocs ) |
|---|
| 1577 | { |
|---|
| 1578 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
|---|
| 1579 | mapping_cluster_t * cluster = _get_cluster_base(header); |
|---|
| 1580 | |
|---|
| 1581 | unsigned int x; |
|---|
| 1582 | unsigned int y; |
|---|
| 1583 | unsigned int okmin = 1; |
|---|
| 1584 | unsigned int okmax = 1; |
|---|
| 1585 | |
|---|
| 1586 | // compute max values |
|---|
| 1587 | unsigned int xmax = header->x_size; |
|---|
| 1588 | unsigned int ymax = header->y_size; |
|---|
| 1589 | unsigned int procs = cluster[0].procs; |
|---|
| 1590 | |
|---|
| 1591 | // check the (ymax-1) lower rows |
|---|
| 1592 | for ( y = 0 ; y < ymax-1 ; y++ ) |
|---|
| 1593 | { |
|---|
| 1594 | for ( x = 0 ; x < xmax ; x++ ) |
|---|
| 1595 | { |
|---|
| 1596 | if (cluster[x*ymax+y].procs != procs ) okmin = 0; |
|---|
| 1597 | } |
|---|
| 1598 | } |
|---|
| 1599 | |
|---|
| 1600 | // check the upper row |
|---|
| 1601 | for ( x = 0 ; x < xmax ; x++ ) |
|---|
| 1602 | { |
|---|
| 1603 | if (cluster[x*ymax+ymax-1].procs != procs ) okmax = 0; |
|---|
| 1604 | } |
|---|
| 1605 | |
|---|
| 1606 | // return values |
|---|
| 1607 | if ( okmin && okmax ) |
|---|
| 1608 | { |
|---|
| 1609 | *x_size = xmax; |
|---|
| 1610 | *y_size = ymax; |
|---|
| 1611 | *nprocs = procs; |
|---|
| 1612 | } |
|---|
| 1613 | else if ( okmin ) |
|---|
| 1614 | { |
|---|
| 1615 | *x_size = xmax; |
|---|
| 1616 | *y_size = ymax-1; |
|---|
| 1617 | *nprocs = procs; |
|---|
| 1618 | } |
|---|
| 1619 | else |
|---|
| 1620 | { |
|---|
| 1621 | *x_size = 0; |
|---|
| 1622 | *y_size = 0; |
|---|
| 1623 | *nprocs = 0; |
|---|
| 1624 | } |
|---|
| 1625 | return 0; |
|---|
| 1626 | } |
|---|
| 1627 | |
|---|
| 1628 | /////////////////////////////////////////////////////// |
|---|
| 1629 | int _sys_vseg_get_vbase( char* vspace_name, |
|---|
| 1630 | char* vseg_name, |
|---|
| 1631 | unsigned int* vbase ) |
|---|
| 1632 | { |
|---|
| 1633 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
|---|
| 1634 | mapping_vspace_t * vspace = _get_vspace_base(header); |
|---|
| 1635 | mapping_vseg_t * vseg = _get_vseg_base(header); |
|---|
| 1636 | |
|---|
| 1637 | unsigned int vspace_id; |
|---|
| 1638 | unsigned int vseg_id; |
|---|
| 1639 | |
|---|
| 1640 | // scan vspaces |
|---|
| 1641 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
|---|
| 1642 | { |
|---|
| 1643 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
|---|
| 1644 | { |
|---|
| 1645 | // scan vsegs |
|---|
| 1646 | for (vseg_id = vspace[vspace_id].vseg_offset; |
|---|
| 1647 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
|---|
| 1648 | vseg_id++) |
|---|
| 1649 | { |
|---|
| 1650 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
|---|
| 1651 | { |
|---|
| 1652 | *vbase = vseg[vseg_id].vbase; |
|---|
| 1653 | return 0; |
|---|
| 1654 | } |
|---|
| 1655 | } |
|---|
| 1656 | } |
|---|
| 1657 | } |
|---|
| 1658 | return -1; // not found |
|---|
| 1659 | } |
|---|
| 1660 | |
|---|
| 1661 | ///////////////////////////////////////////////////////// |
|---|
| 1662 | int _sys_vseg_get_length( char* vspace_name, |
|---|
| 1663 | char* vseg_name, |
|---|
| 1664 | unsigned int* length ) |
|---|
| 1665 | { |
|---|
| 1666 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
|---|
| 1667 | mapping_vspace_t * vspace = _get_vspace_base(header); |
|---|
| 1668 | mapping_vseg_t * vseg = _get_vseg_base(header); |
|---|
| 1669 | |
|---|
| 1670 | unsigned int vspace_id; |
|---|
| 1671 | unsigned int vseg_id; |
|---|
| 1672 | |
|---|
| 1673 | // scan vspaces |
|---|
| 1674 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
|---|
| 1675 | { |
|---|
| 1676 | if (_strncmp( vspace[vspace_id].name, vspace_name, 31) == 0) |
|---|
| 1677 | { |
|---|
| 1678 | // scan vsegs |
|---|
| 1679 | for (vseg_id = vspace[vspace_id].vseg_offset; |
|---|
| 1680 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
|---|
| 1681 | vseg_id++) |
|---|
| 1682 | { |
|---|
| 1683 | if (_strncmp(vseg[vseg_id].name, vseg_name, 31) == 0) |
|---|
| 1684 | { |
|---|
| 1685 | *length = vseg[vseg_id].length; |
|---|
| 1686 | return 0; |
|---|
| 1687 | } |
|---|
| 1688 | } |
|---|
| 1689 | } |
|---|
| 1690 | } |
|---|
| 1691 | return -1; // not found |
|---|
| 1692 | } |
|---|
| 1693 | |
|---|
| 1694 | //////////////////////////////////////// |
|---|
| 1695 | int _sys_xy_from_ptr( void* ptr, |
|---|
| 1696 | unsigned int* x, |
|---|
| 1697 | unsigned int* y ) |
|---|
| 1698 | { |
|---|
| 1699 | unsigned int flags; |
|---|
| 1700 | unsigned long long paddr = _v2p_translate( (unsigned int)ptr , &flags ); |
|---|
| 1701 | |
|---|
| 1702 | *x = (paddr>>36) & 0xF; |
|---|
| 1703 | *y = (paddr>>32) & 0xF; |
|---|
| 1704 | |
|---|
| 1705 | return 0; |
|---|
| 1706 | } |
|---|
| 1707 | |
|---|
| 1708 | ///////////////////////////////////////// |
|---|
| 1709 | int _sys_heap_info( unsigned int* vaddr, |
|---|
| 1710 | unsigned int* length, |
|---|
| 1711 | unsigned int x, |
|---|
| 1712 | unsigned int y ) |
|---|
| 1713 | { |
|---|
| 1714 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
|---|
| 1715 | mapping_task_t * task = _get_task_base(header); |
|---|
| 1716 | mapping_vseg_t * vseg = _get_vseg_base(header); |
|---|
| 1717 | mapping_vspace_t * vspace = _get_vspace_base(header); |
|---|
| 1718 | |
|---|
| 1719 | unsigned int task_id; |
|---|
| 1720 | unsigned int vspace_id; |
|---|
| 1721 | unsigned int vseg_id = 0xFFFFFFFF; |
|---|
| 1722 | |
|---|
| 1723 | // searching the heap vseg |
|---|
| 1724 | if ( (x < X_SIZE) && (y < Y_SIZE) ) // searching a task in cluster(x,y) |
|---|
| 1725 | { |
|---|
| 1726 | // get vspace global index |
|---|
| 1727 | vspace_id = _get_context_slot(CTX_VSID_ID); |
|---|
| 1728 | |
|---|
| 1729 | // scan all tasks in vspace |
|---|
| 1730 | unsigned int min = vspace[vspace_id].task_offset ; |
|---|
| 1731 | unsigned int max = min + vspace[vspace_id].tasks ; |
|---|
| 1732 | for ( task_id = min ; task_id < max ; task_id++ ) |
|---|
| 1733 | { |
|---|
| 1734 | if ( task[task_id].clusterid == (x * Y_SIZE + y) ) |
|---|
| 1735 | { |
|---|
| 1736 | vseg_id = task[task_id].heap_vseg_id; |
|---|
| 1737 | if ( vseg_id != 0xFFFFFFFF ) break; |
|---|
| 1738 | } |
|---|
| 1739 | } |
|---|
| 1740 | } |
|---|
| 1741 | else // searching in the calling task |
|---|
| 1742 | { |
|---|
| 1743 | task_id = _get_context_slot(CTX_GTID_ID); |
|---|
| 1744 | vseg_id = task[task_id].heap_vseg_id; |
|---|
| 1745 | } |
|---|
| 1746 | |
|---|
| 1747 | // analysing the vseg_id |
|---|
| 1748 | if ( vseg_id != 0xFFFFFFFF ) |
|---|
| 1749 | { |
|---|
| 1750 | *vaddr = vseg[vseg_id].vbase; |
|---|
| 1751 | *length = vseg[vseg_id].length; |
|---|
| 1752 | return 0; |
|---|
| 1753 | } |
|---|
| 1754 | else |
|---|
| 1755 | { |
|---|
| 1756 | *vaddr = 0; |
|---|
| 1757 | *length = 0; |
|---|
| 1758 | return -1; |
|---|
| 1759 | } |
|---|
| 1760 | } // end _sys_heap_info() |
|---|
| 1761 | |
|---|
| 1762 | |
|---|
| 1763 | // Local Variables: |
|---|
| 1764 | // tab-width: 4 |
|---|
| 1765 | // c-basic-offset: 4 |
|---|
| 1766 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
|---|
| 1767 | // indent-tabs-mode: nil |
|---|
| 1768 | // End: |
|---|
| 1769 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
|---|
| 1770 | |
|---|