[412] | 1 | ///////////////////////////////////////////////////////////////////////////////////////// |
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[258] | 2 | // File : boot.c |
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| 3 | // Date : 01/11/2013 |
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| 4 | // Author : alain greiner |
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| 5 | // Copyright (c) UPMC-LIP6 |
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| 6 | ////////////////////////////////////////////////////////////////////////////////////////// |
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| 7 | // The boot.c file is part of the GIET-VM nano-kernel. |
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| 8 | // |
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| 9 | // This nano-kernel has been written for the MIPS32 processor. |
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[359] | 10 | // The virtual adresses are on 32 bits and use the (unsigned int) type. The |
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[258] | 11 | // physicals addresses can have up to 40 bits, and use the (unsigned long long) type. |
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[412] | 12 | // It natively supports clusterised shared memory multi-processors architectures, |
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[263] | 13 | // where each processor is identified by a composite index (cluster_xy, local_id), |
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[258] | 14 | // and where there is one physical memory bank per cluster. |
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| 15 | // |
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[359] | 16 | // This code, executed in the boot phase by proc[0,0,0], performs the following tasks: |
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| 17 | // - load into memory various binary files, from a FAT32 file system, |
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[258] | 18 | // - build the various page tables (one page table per vspace) |
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| 19 | // - initialize the shedulers (one scheduler per processor) |
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| 20 | // |
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| 21 | // 1) The binary files to be loaded are: |
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| 22 | // - the "map.bin" file contains the hardware architecture description and the |
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| 23 | // mapping directives. It must be stored in the the seg_boot_mapping segment |
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[321] | 24 | // (at address SEG_BOOT_MAPPING_BASE defined in hard_config.h file). |
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[258] | 25 | // - the "sys.elf" file contains the kernel binary code and data. |
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| 26 | // - the various "application.elf" files. |
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| 27 | // |
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| 28 | // 2) The map.bin file contains the binary representation of the map.xml file defining: |
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| 29 | // - the hardware architecture: number of clusters, number or processors, |
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| 30 | // size of the memory segments, and peripherals in each cluster. |
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| 31 | // - The structure of the various multi-threaded software applications: |
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| 32 | // number of tasks, communication channels. |
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[309] | 33 | // - The mapping: grouping of virtual objects (vobj) in the virtual segments (vseg), |
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[258] | 34 | // placement of virtual segments (vseg) in the physical segments (pseg), placement |
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| 35 | // of software tasks on the processors, |
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| 36 | // |
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| 37 | // 3) The GIET-VM uses the paged virtual memory to provides two services: |
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| 38 | // - classical memory protection, when several independant applications compiled |
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| 39 | // in different virtual spaces are executing on the same hardware platform. |
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[412] | 40 | // - data placement in NUMA architectures, to control the placement |
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| 41 | // of the software objects (vsegs) on the physical memory banks (psegs). |
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[258] | 42 | // |
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[412] | 43 | // The max number of vspaces (GIET_NB_VSPACE_MAX) is a configuration parameter. |
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[258] | 44 | // The page table are statically build in the boot phase, and they do not |
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[412] | 45 | // change during execution. |
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| 46 | // The GIET_VM uses both small pages (4 Kbytes), and big pages (2 Mbytes). |
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[258] | 47 | // |
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| 48 | // Each page table (one page table per virtual space) is monolithic, and contains |
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[412] | 49 | // one PT1 (8 Kbytes) and a variable number of PT2s (4 Kbytes each). For each vspace, |
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| 50 | // the numberof PT2s is defined by the size of the PTAB vobj in the mapping. |
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| 51 | // The PT1 is indexed by the ix1 field (11 bits) of the VPN. Each entry is 32 bits. |
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| 52 | // A PT2 is indexed the ix2 field (9 bits) of the VPN. Each entry is a double word. |
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| 53 | // The first word contains the flags, the second word contains the PPN. |
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| 54 | // |
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[464] | 55 | // When this is required in the mapping, the page tables can be replicated |
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| 56 | // in all clusters. |
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[263] | 57 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 58 | // Implementation Notes: |
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| 59 | // |
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| 60 | // 1) The cluster_id variable is a linear index in the mapping_info array of clusters. |
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| 61 | // We use the cluster_xy variable for the tological index = x << Y_WIDTH + y |
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[412] | 62 | // |
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[263] | 63 | /////////////////////////////////////////////////////////////////////////////////////// |
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[258] | 64 | |
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[263] | 65 | #include <giet_config.h> |
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[464] | 66 | #include <hard_config.h> |
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[436] | 67 | #include <mapping_info.h> |
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[464] | 68 | #include <kernel_malloc.h> |
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[258] | 69 | #include <barrier.h> |
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| 70 | #include <memspace.h> |
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| 71 | #include <tty_driver.h> |
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| 72 | #include <xcu_driver.h> |
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[347] | 73 | #include <bdv_driver.h> |
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[460] | 74 | #include <hba_driver.h> |
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[258] | 75 | #include <dma_driver.h> |
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| 76 | #include <cma_driver.h> |
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| 77 | #include <nic_driver.h> |
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| 78 | #include <ioc_driver.h> |
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[299] | 79 | #include <iob_driver.h> |
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[295] | 80 | #include <pic_driver.h> |
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[258] | 81 | #include <mwr_driver.h> |
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| 82 | #include <ctx_handler.h> |
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| 83 | #include <irq_handler.h> |
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| 84 | #include <vmem.h> |
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[412] | 85 | #include <pmem.h> |
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[258] | 86 | #include <utils.h> |
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[460] | 87 | #include <tty0.h> |
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[464] | 88 | #include <locks.h> |
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[258] | 89 | #include <elf-types.h> |
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| 90 | #include <fat32.h> |
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| 91 | #include <mips32_registers.h> |
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| 92 | #include <stdarg.h> |
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| 93 | |
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[263] | 94 | #if !defined(X_SIZE) |
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[359] | 95 | # error: The X_SIZE value must be defined in the 'hard_config.h' file ! |
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[258] | 96 | #endif |
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| 97 | |
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[263] | 98 | #if !defined(Y_SIZE) |
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[359] | 99 | # error: The Y_SIZE value must be defined in the 'hard_config.h' file ! |
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[263] | 100 | #endif |
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| 101 | |
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| 102 | #if !defined(X_WIDTH) |
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[359] | 103 | # error: The X_WIDTH value must be defined in the 'hard_config.h' file ! |
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[263] | 104 | #endif |
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| 105 | |
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| 106 | #if !defined(Y_WIDTH) |
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[359] | 107 | # error: The Y_WIDTH value must be defined in the 'hard_config.h' file ! |
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[263] | 108 | #endif |
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| 109 | |
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[321] | 110 | #if !defined(SEG_BOOT_MAPPING_BASE) |
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[359] | 111 | # error: The SEG_BOOT_MAPPING_BASE value must be defined in the hard_config.h file ! |
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[321] | 112 | #endif |
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| 113 | |
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[359] | 114 | #if !defined(NB_PROCS_MAX) |
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| 115 | # error: The NB_PROCS_MAX value must be defined in the 'hard_config.h' file ! |
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[321] | 116 | #endif |
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| 117 | |
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[359] | 118 | #if !defined(GIET_NB_VSPACE_MAX) |
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| 119 | # error: The GIET_NB_VSPACE_MAX value must be defined in the 'giet_config.h' file ! |
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[321] | 120 | #endif |
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| 121 | |
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[359] | 122 | #if !defined(GIET_ELF_BUFFER_SIZE) |
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| 123 | # error: The GIET_ELF_BUFFER_SIZE value must be defined in the giet_config.h file ! |
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[258] | 124 | #endif |
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| 125 | |
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| 126 | //////////////////////////////////////////////////////////////////////////// |
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| 127 | // Global variables for boot code |
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| 128 | //////////////////////////////////////////////////////////////////////////// |
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| 129 | |
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[366] | 130 | extern void boot_entry(); |
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| 131 | |
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[412] | 132 | // FAT internal representation for boot code |
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| 133 | __attribute__((section (".bootdata"))) |
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| 134 | fat32_fs_t fat __attribute__((aligned(512))); |
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[258] | 135 | |
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[412] | 136 | // Temporaty buffer used to load one complete .elf file |
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[258] | 137 | __attribute__((section (".bootdata"))) |
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[412] | 138 | char boot_elf_buffer[GIET_ELF_BUFFER_SIZE] __attribute__((aligned(512))); |
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[258] | 139 | |
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[412] | 140 | // Physical memory allocators array (one per cluster) |
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[258] | 141 | __attribute__((section (".bootdata"))) |
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[412] | 142 | pmem_alloc_t boot_pmem_alloc[X_SIZE][Y_SIZE]; |
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[258] | 143 | |
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[464] | 144 | // Distributed kernel heap (one per cluster) |
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| 145 | __attribute__((section (".bootdata"))) |
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| 146 | kernel_heap_t kernel_heap[X_SIZE][Y_SIZE]; |
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| 147 | |
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[412] | 148 | // Schedulers virtual base addresses array (one per processor) |
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[258] | 149 | __attribute__((section (".bootdata"))) |
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[412] | 150 | static_scheduler_t* _schedulers[X_SIZE][Y_SIZE][NB_PROCS_MAX]; |
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[258] | 151 | |
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[412] | 152 | // Page tables virtual base addresses array (one per vspace) |
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[258] | 153 | __attribute__((section (".bootdata"))) |
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[412] | 154 | unsigned int _ptabs_vaddr[GIET_NB_VSPACE_MAX][X_SIZE][Y_SIZE]; |
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[258] | 155 | |
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[412] | 156 | // Page tables physical base addresses (one per vspace and per cluster) |
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[263] | 157 | __attribute__((section (".bootdata"))) |
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[412] | 158 | paddr_t _ptabs_paddr[GIET_NB_VSPACE_MAX][X_SIZE][Y_SIZE]; |
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[258] | 159 | |
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[412] | 160 | // Page tables pt2 allocators (one per vspace and per cluster) |
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[359] | 161 | __attribute__((section (".bootdata"))) |
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[412] | 162 | unsigned int _ptabs_next_pt2[GIET_NB_VSPACE_MAX][X_SIZE][Y_SIZE]; |
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[263] | 163 | |
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[412] | 164 | // Page tables max_pt2 (same value for all page tables) |
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| 165 | __attribute__((section (".bootdata"))) |
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| 166 | unsigned int _ptabs_max_pt2; |
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| 167 | |
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[490] | 168 | __attribute__((section (".bootdata"))) |
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| 169 | //volatile struct _boot_init_ok { |
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| 170 | // unsigned int value; |
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| 171 | //}__attribute__((aligned(64))); |
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| 172 | //struct _boot_init_ok boot_init_ok = {0}; |
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| 173 | volatile unsigned int boot_init_ok = 0; |
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| 174 | |
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| 175 | __attribute__((section (".bootdata"))) |
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| 176 | volatile _giet_lock_t lock_tty; |
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| 177 | |
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| 178 | __attribute__((section (".bootdata"))) |
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| 179 | volatile _giet_barrier_t barrier_boot; |
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| 180 | |
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| 181 | __attribute__((section (".bootdata"))) |
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| 182 | volatile _giet_lock_t lock_next_pt2[GIET_NB_VSPACE_MAX][X_SIZE][Y_SIZE]; |
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| 183 | |
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[464] | 184 | // Global variables for TTY |
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| 185 | __attribute__((section (".bootdata"))) |
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| 186 | sbt_lock_t _tty_tx_lock[NB_TTY_CHANNELS] __attribute__((aligned(64))); |
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| 187 | |
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| 188 | __attribute__((section (".bootdata"))) |
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| 189 | unsigned int _tty_rx_full[NB_TTY_CHANNELS]; |
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[477] | 190 | #if BOOT_DEBUG_MAPPING |
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| 191 | unsigned int word; |
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| 192 | unsigned int line; |
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| 193 | unsigned int* pointer = (unsigned int*)SEG_BOOT_MAPPING_BASE; |
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| 194 | _puts("\n[BOOT] First block of mapping"); |
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| 195 | for ( line = 0 ; line < 8 ; line++ ) |
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[258] | 196 | { |
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[477] | 197 | for ( word = 0 ; word < 8 ; word++ ) |
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[258] | 198 | { |
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[477] | 199 | _puts(" | "); |
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| 200 | _putx( *(pointer + word) ); |
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[258] | 201 | } |
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[477] | 202 | _puts(" |\n"); |
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| 203 | pointer = pointer + 8; |
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| 204 | } |
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| 205 | #endif |
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[263] | 206 | |
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[477] | 207 | __attribute__((section (".bootdata"))) |
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| 208 | unsigned int _tty_rx_buf[NB_TTY_CHANNELS]; |
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[258] | 209 | |
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| 210 | ////////////////////////////////////////////////////////////////////////////// |
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[412] | 211 | // This function registers a new PTE1 in the page table defined |
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| 212 | // by the vspace_id argument, and the (x,y) coordinates. |
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| 213 | // It updates only the first level PT1. |
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[258] | 214 | ////////////////////////////////////////////////////////////////////////////// |
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[412] | 215 | void boot_add_pte1( unsigned int vspace_id, |
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| 216 | unsigned int x, |
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| 217 | unsigned int y, |
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| 218 | unsigned int vpn, // 20 bits right-justified |
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| 219 | unsigned int flags, // 10 bits left-justified |
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| 220 | unsigned int ppn ) // 28 bits right-justified |
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[258] | 221 | { |
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[427] | 222 | |
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| 223 | #if (BOOT_DEBUG_PT > 1) |
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[490] | 224 | _get_lock(&lock_tty); |
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[427] | 225 | _puts(" - PTE1 in PTAB["); |
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| 226 | _putd( vspace_id ); |
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| 227 | _puts(","); |
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| 228 | _putd( x ); |
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| 229 | _puts(","); |
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| 230 | _putd( y ); |
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| 231 | _puts("] : vpn = "); |
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| 232 | _putx( vpn ); |
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[490] | 233 | _puts(" / ppn = "); |
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| 234 | _putx( ppn ); |
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| 235 | _puts(" / flags = "); |
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| 236 | _putx( flags ); |
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| 237 | _puts("\n"); |
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| 238 | _release_lock(&lock_tty); |
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[427] | 239 | #endif |
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| 240 | |
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[490] | 241 | unsigned int procid = _get_procid(); |
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| 242 | unsigned int x_cluster = (procid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
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| 243 | unsigned int y_cluster = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
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| 244 | |
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[412] | 245 | // compute index in PT1 |
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| 246 | unsigned int ix1 = vpn >> 9; // 11 bits for ix1 |
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[258] | 247 | |
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[412] | 248 | // get page table physical base address |
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| 249 | paddr_t pt1_pbase = _ptabs_paddr[vspace_id][x][y]; |
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| 250 | |
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| 251 | // check pt1_base |
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| 252 | if ( pt1_pbase == 0 ) |
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[258] | 253 | { |
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[490] | 254 | _get_lock(&lock_tty); |
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[412] | 255 | _puts("\n[BOOT ERROR] in boot_add_pte1() : illegal pbase address for PTAB["); |
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| 256 | _putd( vspace_id ); |
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| 257 | _puts(","); |
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| 258 | _putd( x ); |
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| 259 | _puts(","); |
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| 260 | _putd( y ); |
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[490] | 261 | _puts("]"); |
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| 262 | _puts(" in cluster["); |
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| 263 | _putd(x_cluster); |
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| 264 | _puts(","); |
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| 265 | _putd(y_cluster); |
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[412] | 266 | _puts("]\n"); |
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[490] | 267 | _release_lock(&lock_tty); |
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[258] | 268 | _exit(); |
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| 269 | } |
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| 270 | |
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[412] | 271 | // compute pte1 : 2 bits V T / 8 bits flags / 3 bits RSVD / 19 bits bppi |
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| 272 | unsigned int pte1 = PTE_V | |
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| 273 | (flags & 0x3FC00000) | |
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| 274 | ((ppn>>9) & 0x0007FFFF); |
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[258] | 275 | |
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[412] | 276 | // write pte1 in PT1 |
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| 277 | _physical_write( pt1_pbase + 4*ix1, pte1 ); |
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| 278 | |
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[490] | 279 | #if (BOOT_DEBUG_PT > 1 ) |
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| 280 | _get_lock(&lock_tty); |
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| 281 | _puts(" - Write pte1 "); |
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| 282 | _putx( pte1 ); |
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| 283 | _puts(" in paddr "); |
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| 284 | _putl( pt1_pbase + 4*ix1 ); |
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| 285 | _puts(" in cluster["); |
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| 286 | _putd(x_cluster); |
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| 287 | _puts(","); |
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| 288 | _putd(y_cluster); |
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| 289 | _puts("]\n"); |
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[412] | 290 | _puts("\n"); |
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[490] | 291 | _release_lock(&lock_tty); |
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[412] | 292 | #endif |
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| 293 | |
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| 294 | } // end boot_add_pte1() |
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| 295 | |
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[258] | 296 | ////////////////////////////////////////////////////////////////////////////// |
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[412] | 297 | // This function registers a new PTE2 in the page table defined |
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[347] | 298 | // by the vspace_id argument, and the (x,y) coordinates. |
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[412] | 299 | // It updates both the first level PT1 and the second level PT2. |
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[258] | 300 | // As the set of PT2s is implemented as a fixed size array (no dynamic |
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| 301 | // allocation), this function checks a possible overflow of the PT2 array. |
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| 302 | ////////////////////////////////////////////////////////////////////////////// |
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[412] | 303 | void boot_add_pte2( unsigned int vspace_id, |
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| 304 | unsigned int x, |
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| 305 | unsigned int y, |
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| 306 | unsigned int vpn, // 20 bits right-justified |
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| 307 | unsigned int flags, // 10 bits left-justified |
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| 308 | unsigned int ppn ) // 28 bits right-justified |
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[258] | 309 | { |
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[427] | 310 | |
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| 311 | #if (BOOT_DEBUG_PT > 1) |
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[490] | 312 | _get_lock(&lock_tty); |
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[427] | 313 | _puts(" - PTE2 in PTAB["); |
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| 314 | _putd( vspace_id ); |
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| 315 | _puts(","); |
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| 316 | _putd( x ); |
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| 317 | _puts(","); |
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| 318 | _putd( y ); |
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| 319 | _puts("] : vpn = "); |
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| 320 | _putx( vpn ); |
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[490] | 321 | _puts(" / ppn = "); |
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| 322 | _putx( ppn ); |
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| 323 | _puts(" / flags = "); |
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| 324 | _putx( flags ); |
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| 325 | _puts("\n"); |
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| 326 | _release_lock(&lock_tty); |
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[427] | 327 | #endif |
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| 328 | |
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[258] | 329 | unsigned int ix1; |
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| 330 | unsigned int ix2; |
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[347] | 331 | paddr_t pt2_pbase; // PT2 physical base address |
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[412] | 332 | paddr_t pte2_paddr; // PTE2 physical address |
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[258] | 333 | unsigned int pt2_id; // PT2 index |
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| 334 | unsigned int ptd; // PTD : entry in PT1 |
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| 335 | |
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[412] | 336 | ix1 = vpn >> 9; // 11 bits for ix1 |
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| 337 | ix2 = vpn & 0x1FF; // 9 bits for ix2 |
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[258] | 338 | |
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[347] | 339 | // get page table physical base address and size |
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| 340 | paddr_t pt1_pbase = _ptabs_paddr[vspace_id][x][y]; |
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[258] | 341 | |
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[412] | 342 | // check pt1_base |
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| 343 | if ( pt1_pbase == 0 ) |
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[258] | 344 | { |
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[490] | 345 | _get_lock(&lock_tty); |
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[412] | 346 | _puts("\n[BOOT ERROR] in boot_add_pte2() : PTAB["); |
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| 347 | _putd( vspace_id ); |
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| 348 | _puts(","); |
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| 349 | _putd( x ); |
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| 350 | _puts(","); |
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| 351 | _putd( y ); |
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| 352 | _puts("] undefined\n"); |
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[490] | 353 | _release_lock(&lock_tty); |
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[258] | 354 | _exit(); |
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| 355 | } |
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| 356 | |
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| 357 | // get ptd in PT1 |
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[490] | 358 | _get_lock(&lock_next_pt2[vspace_id][x][y]); |
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[258] | 359 | ptd = _physical_read(pt1_pbase + 4 * ix1); |
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| 360 | |
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[347] | 361 | if ((ptd & PTE_V) == 0) // undefined PTD: compute PT2 base address, |
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[258] | 362 | // and set a new PTD in PT1 |
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| 363 | { |
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[347] | 364 | pt2_id = _ptabs_next_pt2[vspace_id][x][y]; |
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[412] | 365 | if (pt2_id == _ptabs_max_pt2) |
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[258] | 366 | { |
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[412] | 367 | _puts("\n[BOOT ERROR] in boot_add_pte2() : PTAB["); |
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| 368 | _putd( vspace_id ); |
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| 369 | _puts(","); |
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| 370 | _putd( x ); |
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| 371 | _puts(","); |
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| 372 | _putd( y ); |
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| 373 | _puts("] contains not enough PT2s\n"); |
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[258] | 374 | _exit(); |
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| 375 | } |
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[347] | 376 | |
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| 377 | pt2_pbase = pt1_pbase + PT1_SIZE + PT2_SIZE * pt2_id; |
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| 378 | ptd = PTE_V | PTE_T | (unsigned int) (pt2_pbase >> 12); |
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[412] | 379 | _physical_write( pt1_pbase + 4*ix1, ptd); |
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[347] | 380 | _ptabs_next_pt2[vspace_id][x][y] = pt2_id + 1; |
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[258] | 381 | } |
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| 382 | else // valid PTD: compute PT2 base address |
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| 383 | { |
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| 384 | pt2_pbase = ((paddr_t)(ptd & 0x0FFFFFFF)) << 12; |
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| 385 | } |
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| 386 | |
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[490] | 387 | _release_lock(&lock_next_pt2[vspace_id][x][y]); |
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[258] | 388 | // set PTE in PT2 : flags & PPN in two 32 bits words |
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[412] | 389 | pte2_paddr = pt2_pbase + 8 * ix2; |
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| 390 | _physical_write(pte2_paddr , (PTE_V |flags) ); |
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| 391 | _physical_write(pte2_paddr + 4 , ppn); |
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[258] | 392 | |
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[412] | 393 | } // end boot_add_pte2() |
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[258] | 394 | |
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[412] | 395 | //////////////////////////////////////////////////////////////////////////////////// |
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[258] | 396 | // Align the value of paddr or vaddr to the required alignement, |
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| 397 | // defined by alignPow2 == L2(alignement). |
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[412] | 398 | //////////////////////////////////////////////////////////////////////////////////// |
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[258] | 399 | paddr_t paddr_align_to(paddr_t paddr, unsigned int alignPow2) |
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| 400 | { |
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| 401 | paddr_t mask = (1 << alignPow2) - 1; |
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| 402 | return ((paddr + mask) & ~mask); |
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| 403 | } |
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| 404 | |
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| 405 | unsigned int vaddr_align_to(unsigned int vaddr, unsigned int alignPow2) |
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| 406 | { |
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| 407 | unsigned int mask = (1 << alignPow2) - 1; |
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| 408 | return ((vaddr + mask) & ~mask); |
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| 409 | } |
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| 410 | |
---|
[412] | 411 | ///////////////////////////////////////////////////////////////////////////////////// |
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| 412 | // This function map a vseg identified by the vseg pointer. |
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| 413 | // |
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| 414 | // A given vseg can be mapped in Big Physical Pages (BPP: 2 Mbytes) or in a |
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| 415 | // Small Physical Pages (SPP: 4 Kbytes), depending on the "big" attribute of vseg, |
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| 416 | // with the following rules: |
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| 417 | // - SPP : There is only one vseg in a small physical page, but a single vseg |
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| 418 | // can cover several contiguous small physical pages. |
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| 419 | // - BPP : It can exist several vsegs in a single big physical page, and a single |
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| 420 | // vseg can cover several contiguous big physical pages. |
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| 421 | // |
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| 422 | // 1) First step: it computes the vseg length, and register it in vseg->length field. |
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| 423 | // It computes - for each vobj - the actual vbase address, taking into |
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| 424 | // account the alignment constraints and register it in vobj->vbase field. |
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| 425 | // |
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| 426 | // 2) Second step: it allocates the required number of physical pages, |
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| 427 | // computes the physical base address (if the vseg is not identity mapping), |
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| 428 | // and register it in the vseg pbase field. |
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| 429 | // Only the 4 vsegs used by the boot code and the peripheral vsegs |
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| 430 | // can be identity mapping: The first big physical page in cluster[0,0] |
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| 431 | // is reserved for the 4 boot vsegs. |
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| 432 | // |
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| 433 | // 3) Third step (only for vseg that have the VOBJ_TYPE_PTAB): all page tables |
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| 434 | // associated to the various vspaces must be packed in the same vseg. |
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| 435 | // We divide the vseg in M sub-segments, and compute the vbase and pbase |
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| 436 | // addresses for each page table, and register it in the _ptabs_paddr |
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| 437 | // and _ptabs_vaddr arrays. |
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| 438 | // |
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| 439 | ///////////////////////////////////////////////////////////////////////////////////// |
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[427] | 440 | void boot_vseg_map( mapping_vseg_t* vseg, |
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| 441 | unsigned int vspace_id ) |
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[258] | 442 | { |
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[412] | 443 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
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| 444 | mapping_vobj_t* vobj = _get_vobj_base(header); |
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| 445 | mapping_cluster_t* cluster = _get_cluster_base(header); |
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| 446 | mapping_pseg_t* pseg = _get_pseg_base(header); |
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[258] | 447 | |
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[412] | 448 | // compute destination cluster pointer & coordinates |
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| 449 | pseg = pseg + vseg->psegid; |
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| 450 | cluster = cluster + pseg->clusterid; |
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| 451 | unsigned int x_dest = cluster->x; |
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| 452 | unsigned int y_dest = cluster->y; |
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[258] | 453 | |
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[412] | 454 | // compute the first vobj global index |
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| 455 | unsigned int vobj_id = vseg->vobj_offset; |
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| 456 | |
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| 457 | // compute the "big" vseg attribute |
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| 458 | unsigned int big = vseg->big; |
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[258] | 459 | |
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[412] | 460 | // compute the "is_ram" vseg attribute |
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| 461 | unsigned int is_ram; |
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| 462 | if ( pseg->type == PSEG_TYPE_RAM ) is_ram = 1; |
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| 463 | else is_ram = 0; |
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[258] | 464 | |
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[412] | 465 | // compute the "is_ptab" attribute |
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| 466 | unsigned int is_ptab; |
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| 467 | if ( vobj[vobj_id].type == VOBJ_TYPE_PTAB ) is_ptab = 1; |
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| 468 | else is_ptab = 0; |
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[258] | 469 | |
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[427] | 470 | // compute actual vspace index |
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| 471 | unsigned int vsid; |
---|
| 472 | if ( vspace_id == 0xFFFFFFFF ) vsid = 0; |
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| 473 | else vsid = vspace_id; |
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| 474 | |
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[412] | 475 | //////////// First step : compute vseg length and vobj(s) vbase |
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[258] | 476 | |
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[412] | 477 | unsigned int vobj_vbase = vseg->vbase; // min vbase for first vobj |
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[258] | 478 | |
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[412] | 479 | for ( vobj_id = vseg->vobj_offset ; |
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| 480 | vobj_id < (vseg->vobj_offset + vseg->vobjs) ; |
---|
| 481 | vobj_id++ ) |
---|
[258] | 482 | { |
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[412] | 483 | // compute and register vobj vbase |
---|
| 484 | vobj[vobj_id].vbase = vaddr_align_to( vobj_vbase, vobj[vobj_id].align ); |
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| 485 | |
---|
| 486 | // compute min vbase for next vobj |
---|
| 487 | vobj_vbase = vobj[vobj_id].vbase + vobj[vobj_id].length; |
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[258] | 488 | } |
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| 489 | |
---|
[412] | 490 | // compute and register vseg length (multiple of 4 Kbytes) |
---|
| 491 | vseg->length = vaddr_align_to( vobj_vbase - vseg->vbase, 12 ); |
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| 492 | |
---|
| 493 | //////////// Second step : compute ppn and npages |
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| 494 | //////////// - if identity mapping : ppn <= vpn |
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| 495 | //////////// - if vseg is periph : ppn <= pseg.base >> 12 |
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| 496 | //////////// - if vseg is ram : ppn <= physical memory allocator |
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[258] | 497 | |
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[412] | 498 | unsigned int ppn; // first physical page index ( 28 bits = |x|y|bppi|sppi| ) |
---|
| 499 | unsigned int vpn; // first virtual page index ( 20 bits = |ix1|ix2| ) |
---|
| 500 | unsigned int vpn_max; // last virtual page index ( 20 bits = |ix1|ix2| ) |
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[258] | 501 | |
---|
[412] | 502 | vpn = vseg->vbase >> 12; |
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| 503 | vpn_max = (vseg->vbase + vseg->length - 1) >> 12; |
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[258] | 504 | |
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[412] | 505 | // compute npages |
---|
| 506 | unsigned int npages; // number of required (big or small) pages |
---|
| 507 | if ( big == 0 ) npages = vpn_max - vpn + 1; // number of small pages |
---|
| 508 | else npages = (vpn_max>>9) - (vpn>>9) + 1; // number of big pages |
---|
| 509 | |
---|
| 510 | // compute ppn |
---|
| 511 | if ( vseg->ident ) // identity mapping |
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[258] | 512 | { |
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[412] | 513 | ppn = vpn; |
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[258] | 514 | } |
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[412] | 515 | else // not identity mapping |
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[258] | 516 | { |
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[412] | 517 | if ( is_ram ) // RAM : physical memory allocation required |
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[258] | 518 | { |
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[412] | 519 | // compute pointer on physical memory allocator in dest cluster |
---|
| 520 | pmem_alloc_t* palloc = &boot_pmem_alloc[x_dest][y_dest]; |
---|
[258] | 521 | |
---|
[412] | 522 | if ( big == 0 ) // SPP : small physical pages |
---|
| 523 | { |
---|
| 524 | // allocate contiguous small physical pages |
---|
| 525 | ppn = _get_small_ppn( palloc, npages ); |
---|
| 526 | } |
---|
| 527 | else // BPP : big physical pages |
---|
| 528 | { |
---|
| 529 | |
---|
| 530 | // one big page can be shared by several vsegs |
---|
| 531 | // we must chek if BPP already allocated |
---|
| 532 | if ( is_ptab ) // It cannot be mapped |
---|
| 533 | { |
---|
| 534 | ppn = _get_big_ppn( palloc, npages ); |
---|
| 535 | } |
---|
| 536 | else // It can be mapped |
---|
| 537 | { |
---|
| 538 | unsigned int ix1 = vpn >> 9; // 11 bits |
---|
[427] | 539 | paddr_t paddr = _ptabs_paddr[vsid][x_dest][y_dest] + (ix1<<2); |
---|
[412] | 540 | unsigned int pte1 = _physical_read( paddr ); |
---|
[490] | 541 | #if (BOOT_DEBUG_PT > 1) |
---|
| 542 | _get_lock(&lock_tty); |
---|
| 543 | _puts("[BOOT DEBUG] "); |
---|
| 544 | _puts( vseg->name ); |
---|
| 545 | _puts(" in cluster["); |
---|
| 546 | _putd( x_dest ); |
---|
| 547 | _puts(","); |
---|
| 548 | _putd( y_dest ); |
---|
| 549 | _puts("] : vbase = "); |
---|
| 550 | _putx( vseg->vbase ); |
---|
| 551 | _puts(" / paddr = "); |
---|
| 552 | _putl( paddr ); |
---|
| 553 | _puts(" / pte1 = "); |
---|
| 554 | _putx( pte1 ); |
---|
| 555 | _puts(" by processor "); |
---|
| 556 | _putd(_get_procid()); |
---|
| 557 | _puts("\n"); |
---|
| 558 | _release_lock(&lock_tty); |
---|
| 559 | #endif |
---|
[412] | 560 | if ( (pte1 & PTE_V) == 0 ) // BPP not allocated yet |
---|
| 561 | { |
---|
| 562 | // allocate contiguous big physical pages |
---|
[433] | 563 | ppn = _get_big_ppn( palloc, npages ); |
---|
[412] | 564 | } |
---|
| 565 | else // BPP already allocated |
---|
| 566 | { |
---|
[433] | 567 | // test if new vseg has the same mode bits than |
---|
| 568 | // the other vsegs in the same big page |
---|
| 569 | unsigned int pte1_mode = 0; |
---|
| 570 | if (pte1 & PTE_C) pte1_mode |= C_MODE_MASK; |
---|
| 571 | if (pte1 & PTE_X) pte1_mode |= X_MODE_MASK; |
---|
| 572 | if (pte1 & PTE_W) pte1_mode |= W_MODE_MASK; |
---|
| 573 | if (pte1 & PTE_U) pte1_mode |= U_MODE_MASK; |
---|
| 574 | if (vseg->mode != pte1_mode) { |
---|
| 575 | _puts("\n[BOOT ERROR] in boot_vseg_map() : vseg "); |
---|
| 576 | _puts( vseg->name ); |
---|
| 577 | _puts(" has different flags ("); |
---|
| 578 | _putx( vseg->mode ); |
---|
| 579 | _puts(") than other vsegs sharing the same big page ("); |
---|
| 580 | _putx( pte1_mode ); |
---|
| 581 | _puts(")"); |
---|
| 582 | _exit(); |
---|
| 583 | } |
---|
| 584 | |
---|
[412] | 585 | ppn = ((pte1 << 9) & 0x0FFFFE00); |
---|
| 586 | } |
---|
| 587 | } |
---|
| 588 | ppn = ppn | (vpn & 0x1FF); |
---|
| 589 | } |
---|
[258] | 590 | } |
---|
[412] | 591 | else // PERI : no memory allocation required |
---|
[258] | 592 | { |
---|
[412] | 593 | ppn = pseg->base >> 12; |
---|
[258] | 594 | } |
---|
| 595 | } |
---|
| 596 | |
---|
[412] | 597 | // update vseg.pbase field and update vsegs chaining |
---|
| 598 | vseg->pbase = ((paddr_t)ppn) << 12; |
---|
| 599 | vseg->next_vseg = pseg->next_vseg; |
---|
| 600 | pseg->next_vseg = (unsigned int)vseg; |
---|
[258] | 601 | |
---|
[412] | 602 | |
---|
| 603 | //////////// Third step : (only if the vseg is a page table) |
---|
| 604 | //////////// - compute the physical & virtual base address for each vspace |
---|
| 605 | //////////// by dividing the vseg in several sub-segments. |
---|
| 606 | //////////// - register it in _ptabs_vaddr & _ptabs_paddr arrays, |
---|
[427] | 607 | //////////// and initialize next_pt2 allocators. |
---|
| 608 | //////////// - reset all entries in first level page tables |
---|
[412] | 609 | |
---|
| 610 | if ( is_ptab ) |
---|
[258] | 611 | { |
---|
[412] | 612 | unsigned int vs; // vspace index |
---|
| 613 | unsigned int nspaces; // number of vspaces |
---|
| 614 | unsigned int nsp; // number of small pages for one PTAB |
---|
| 615 | unsigned int offset; // address offset for current PTAB |
---|
[258] | 616 | |
---|
[412] | 617 | nspaces = header->vspaces; |
---|
| 618 | offset = 0; |
---|
[258] | 619 | |
---|
[412] | 620 | // each PTAB must be aligned on a 8 Kbytes boundary |
---|
[427] | 621 | nsp = ( vseg->length >> 12 ) / nspaces; |
---|
[412] | 622 | if ( (nsp & 0x1) == 0x1 ) nsp = nsp - 1; |
---|
[258] | 623 | |
---|
[412] | 624 | // compute max_pt2 |
---|
| 625 | _ptabs_max_pt2 = ((nsp<<12) - PT1_SIZE) / PT2_SIZE; |
---|
[433] | 626 | |
---|
[412] | 627 | for ( vs = 0 ; vs < nspaces ; vs++ ) |
---|
[258] | 628 | { |
---|
[433] | 629 | _ptabs_vaddr [vs][x_dest][y_dest] = (vpn + offset) << 12; |
---|
[412] | 630 | _ptabs_paddr [vs][x_dest][y_dest] = ((paddr_t)(ppn + offset)) << 12; |
---|
| 631 | _ptabs_next_pt2[vs][x_dest][y_dest] = 0; |
---|
[427] | 632 | offset += nsp; |
---|
[433] | 633 | |
---|
[427] | 634 | // reset all entries in PT1 (8 Kbytes) |
---|
| 635 | _physical_memset( _ptabs_paddr[vs][x_dest][y_dest], PT1_SIZE, 0 ); |
---|
[258] | 636 | } |
---|
| 637 | } |
---|
| 638 | |
---|
[412] | 639 | #if BOOT_DEBUG_PT |
---|
[490] | 640 | _get_lock(&lock_tty); |
---|
[412] | 641 | _puts("[BOOT DEBUG] "); |
---|
[433] | 642 | _puts( vseg->name ); |
---|
[412] | 643 | _puts(" in cluster["); |
---|
| 644 | _putd( x_dest ); |
---|
| 645 | _puts(","); |
---|
| 646 | _putd( y_dest ); |
---|
| 647 | _puts("] : vbase = "); |
---|
| 648 | _putx( vseg->vbase ); |
---|
| 649 | _puts(" / length = "); |
---|
| 650 | _putx( vseg->length ); |
---|
| 651 | if ( big ) _puts(" / BIG / npages = "); |
---|
| 652 | else _puts(" / SMALL / npages = "); |
---|
| 653 | _putd( npages ); |
---|
| 654 | _puts(" / pbase = "); |
---|
| 655 | _putl( vseg->pbase ); |
---|
| 656 | _puts("\n"); |
---|
[490] | 657 | _release_lock(&lock_tty); |
---|
[412] | 658 | #endif |
---|
| 659 | |
---|
| 660 | } // end boot_vseg_map() |
---|
| 661 | |
---|
| 662 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 663 | // For the vseg defined by the vseg pointer, this function register all PTEs |
---|
| 664 | // in one or several page tables. |
---|
[436] | 665 | // It is a global vseg (kernel vseg) if (vspace_id == 0xFFFFFFFF). |
---|
[412] | 666 | // The number of involved PTABs depends on the "local" and "global" attributes: |
---|
| 667 | // - PTEs are replicated in all vspaces for a global vseg. |
---|
| 668 | // - PTEs are replicated in all clusters for a non local vseg. |
---|
| 669 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
[427] | 670 | void boot_vseg_pte( mapping_vseg_t* vseg, |
---|
| 671 | unsigned int vspace_id ) |
---|
[412] | 672 | { |
---|
| 673 | // compute the "global" vseg attribute and actual vspace index |
---|
| 674 | unsigned int global; |
---|
| 675 | unsigned int vsid; |
---|
| 676 | if ( vspace_id == 0xFFFFFFFF ) |
---|
[258] | 677 | { |
---|
[412] | 678 | global = 1; |
---|
| 679 | vsid = 0; |
---|
[258] | 680 | } |
---|
[412] | 681 | else |
---|
[258] | 682 | { |
---|
[412] | 683 | global = 0; |
---|
| 684 | vsid = vspace_id; |
---|
[258] | 685 | } |
---|
| 686 | |
---|
[412] | 687 | // compute the "local" and "big" attributes |
---|
| 688 | unsigned int local = vseg->local; |
---|
| 689 | unsigned int big = vseg->big; |
---|
[258] | 690 | |
---|
[412] | 691 | // compute vseg flags |
---|
| 692 | // The three flags (Local, Remote and Dirty) are set to 1 to reduce |
---|
| 693 | // latency of TLB miss (L/R) and write (D): Avoid hardware update |
---|
| 694 | // mechanism for these flags because GIET_VM does use these flags. |
---|
| 695 | unsigned int flags = 0; |
---|
| 696 | if (vseg->mode & C_MODE_MASK) flags |= PTE_C; |
---|
| 697 | if (vseg->mode & X_MODE_MASK) flags |= PTE_X; |
---|
| 698 | if (vseg->mode & W_MODE_MASK) flags |= PTE_W; |
---|
| 699 | if (vseg->mode & U_MODE_MASK) flags |= PTE_U; |
---|
| 700 | if ( global ) flags |= PTE_G; |
---|
| 701 | flags |= PTE_L; |
---|
| 702 | flags |= PTE_R; |
---|
| 703 | flags |= PTE_D; |
---|
[258] | 704 | |
---|
[412] | 705 | // compute VPN, PPN and number of pages (big or small) |
---|
| 706 | unsigned int vpn = vseg->vbase >> 12; |
---|
| 707 | unsigned int vpn_max = (vseg->vbase + vseg->length - 1) >> 12; |
---|
| 708 | unsigned int ppn = (unsigned int)(vseg->pbase >> 12); |
---|
| 709 | unsigned int npages; |
---|
| 710 | if ( big == 0 ) npages = vpn_max - vpn + 1; |
---|
| 711 | else npages = (vpn_max>>9) - (vpn>>9) + 1; |
---|
| 712 | |
---|
| 713 | // compute destination cluster coordinates |
---|
| 714 | unsigned int x_dest; |
---|
| 715 | unsigned int y_dest; |
---|
| 716 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 717 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 718 | mapping_pseg_t* pseg = _get_pseg_base(header); |
---|
| 719 | pseg = pseg + vseg->psegid; |
---|
| 720 | cluster = cluster + pseg->clusterid; |
---|
| 721 | x_dest = cluster->x; |
---|
| 722 | y_dest = cluster->y; |
---|
| 723 | |
---|
| 724 | unsigned int p; // iterator for physical page index |
---|
| 725 | unsigned int x; // iterator for cluster x coordinate |
---|
| 726 | unsigned int y; // iterator for cluster y coordinate |
---|
| 727 | unsigned int v; // iterator for vspace index |
---|
| 728 | |
---|
| 729 | // loop on PTEs |
---|
| 730 | for ( p = 0 ; p < npages ; p++ ) |
---|
| 731 | { |
---|
| 732 | if ( (local != 0) && (global == 0) ) // one cluster / one vspace |
---|
[258] | 733 | { |
---|
[412] | 734 | if ( big ) // big pages => PTE1s |
---|
| 735 | { |
---|
| 736 | boot_add_pte1( vsid, |
---|
| 737 | x_dest, |
---|
| 738 | y_dest, |
---|
| 739 | vpn + (p<<9), |
---|
| 740 | flags, |
---|
| 741 | ppn + (p<<9) ); |
---|
| 742 | } |
---|
| 743 | else // small pages => PTE2s |
---|
| 744 | { |
---|
| 745 | boot_add_pte2( vsid, |
---|
| 746 | x_dest, |
---|
| 747 | y_dest, |
---|
| 748 | vpn + p, |
---|
| 749 | flags, |
---|
| 750 | ppn + p ); |
---|
| 751 | } |
---|
[258] | 752 | } |
---|
[412] | 753 | else if ( (local == 0) && (global == 0) ) // all clusters / one vspace |
---|
[258] | 754 | { |
---|
[412] | 755 | for ( x = 0 ; x < X_SIZE ; x++ ) |
---|
[258] | 756 | { |
---|
[412] | 757 | for ( y = 0 ; y < Y_SIZE ; y++ ) |
---|
| 758 | { |
---|
| 759 | if ( big ) // big pages => PTE1s |
---|
| 760 | { |
---|
| 761 | boot_add_pte1( vsid, |
---|
| 762 | x, |
---|
| 763 | y, |
---|
| 764 | vpn + (p<<9), |
---|
| 765 | flags, |
---|
| 766 | ppn + (p<<9) ); |
---|
| 767 | } |
---|
| 768 | else // small pages => PTE2s |
---|
| 769 | { |
---|
| 770 | boot_add_pte2( vsid, |
---|
| 771 | x, |
---|
| 772 | y, |
---|
| 773 | vpn + p, |
---|
| 774 | flags, |
---|
| 775 | ppn + p ); |
---|
| 776 | } |
---|
| 777 | } |
---|
[258] | 778 | } |
---|
[412] | 779 | } |
---|
| 780 | else if ( (local != 0) && (global != 0) ) // one cluster / all vspaces |
---|
| 781 | { |
---|
| 782 | for ( v = 0 ; v < header->vspaces ; v++ ) |
---|
[258] | 783 | { |
---|
[412] | 784 | if ( big ) // big pages => PTE1s |
---|
| 785 | { |
---|
| 786 | boot_add_pte1( v, |
---|
| 787 | x_dest, |
---|
| 788 | y_dest, |
---|
| 789 | vpn + (p<<9), |
---|
| 790 | flags, |
---|
| 791 | ppn + (p<<9) ); |
---|
| 792 | } |
---|
| 793 | else // small pages = PTE2s |
---|
| 794 | { |
---|
| 795 | boot_add_pte2( v, |
---|
| 796 | x_dest, |
---|
| 797 | y_dest, |
---|
| 798 | vpn + p, |
---|
| 799 | flags, |
---|
| 800 | ppn + p ); |
---|
| 801 | } |
---|
[258] | 802 | } |
---|
[412] | 803 | } |
---|
| 804 | else if ( (local == 0) && (global != 0) ) // all clusters / all vspaces |
---|
| 805 | { |
---|
| 806 | for ( x = 0 ; x < X_SIZE ; x++ ) |
---|
[258] | 807 | { |
---|
[412] | 808 | for ( y = 0 ; y < Y_SIZE ; y++ ) |
---|
| 809 | { |
---|
| 810 | for ( v = 0 ; v < header->vspaces ; v++ ) |
---|
| 811 | { |
---|
| 812 | if ( big ) // big pages => PTE1s |
---|
| 813 | { |
---|
| 814 | boot_add_pte1( v, |
---|
| 815 | x, |
---|
| 816 | y, |
---|
| 817 | vpn + (p<<9), |
---|
| 818 | flags, |
---|
| 819 | ppn + (p<<9) ); |
---|
| 820 | } |
---|
| 821 | else // small pages -> PTE2s |
---|
| 822 | { |
---|
| 823 | boot_add_pte2( v, |
---|
| 824 | x, |
---|
| 825 | y, |
---|
| 826 | vpn + p, |
---|
| 827 | flags, |
---|
| 828 | ppn + p ); |
---|
| 829 | } |
---|
| 830 | } |
---|
| 831 | } |
---|
[258] | 832 | } |
---|
| 833 | } |
---|
[412] | 834 | } // end for pages |
---|
[427] | 835 | } // end boot_vseg_pte() |
---|
[258] | 836 | |
---|
[412] | 837 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 838 | // This function initialises the page tables for all vspaces defined |
---|
| 839 | // in the mapping_info data structure. |
---|
| 840 | // For each vspace, there is one page table per cluster. |
---|
| 841 | // In each cluster all page tables for the different vspaces must be |
---|
| 842 | // packed in one vseg occupying one single BPP (Big Physical Page). |
---|
[490] | 843 | // |
---|
| 844 | // This fonction is executed by the processor[x][y][0], the vsegs mapped in the |
---|
| 845 | // cluster[x][y] in map.bin file are handled by the processor[x][y][0] |
---|
[258] | 846 | // |
---|
[412] | 847 | // For each vseg, the mapping is done in two steps: |
---|
[436] | 848 | // 1) mapping : the boot_vseg_map() function allocates contiguous BPPs |
---|
[412] | 849 | // or SPPs (if the vseg is not associated to a peripheral), and register |
---|
| 850 | // the physical base address in the vseg pbase field. It initialises the |
---|
| 851 | // _ptabs_vaddr and _ptabs_paddr arrays if the vseg is a PTAB. |
---|
| 852 | // |
---|
[436] | 853 | // 2) page table initialisation : the boot_vseg_pte() function initialise |
---|
[412] | 854 | // the PTEs (both PTE1 and PTE2) in one or several page tables: |
---|
| 855 | // - PTEs are replicated in all vspaces for a global vseg. |
---|
| 856 | // - PTEs are replicated in all clusters for a non local vseg. |
---|
| 857 | // |
---|
| 858 | // We must handle vsegs in the following order |
---|
| 859 | // 1) all global vsegs containing a page table, |
---|
| 860 | // 2) all global vsegs occupying more than one BPP, |
---|
| 861 | // 3) all others global vsegs |
---|
| 862 | // 4) all private vsegs in user space. |
---|
| 863 | /////////////////////////////////////////////////////////////////////////////// |
---|
[436] | 864 | void boot_ptabs_init() |
---|
[258] | 865 | { |
---|
[412] | 866 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 867 | mapping_vspace_t* vspace = _get_vspace_base(header); |
---|
| 868 | mapping_vseg_t* vseg = _get_vseg_base(header); |
---|
| 869 | mapping_vobj_t* vobj = _get_vobj_base(header); |
---|
[490] | 870 | mapping_cluster_t* cluster ; |
---|
| 871 | mapping_pseg_t* pseg ; |
---|
[258] | 872 | |
---|
| 873 | unsigned int vspace_id; |
---|
| 874 | unsigned int vseg_id; |
---|
| 875 | |
---|
[490] | 876 | unsigned int procid = _get_procid(); |
---|
| 877 | unsigned int x_cluster = (procid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
---|
| 878 | unsigned int y_cluster = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 879 | unsigned int lpid = procid & ((1<<P_WIDTH)-1); |
---|
| 880 | |
---|
| 881 | if(lpid) |
---|
| 882 | { |
---|
| 883 | _puts("[BOOT ERROR] boot_ptabs_init() : error local processor id\n"); |
---|
| 884 | _exit(); |
---|
| 885 | } |
---|
| 886 | |
---|
[258] | 887 | if (header->vspaces == 0 ) |
---|
| 888 | { |
---|
[436] | 889 | _puts("\n[BOOT ERROR] in boot_ptabs_init() : mapping "); |
---|
[258] | 890 | _puts( header->name ); |
---|
| 891 | _puts(" contains no vspace\n"); |
---|
| 892 | _exit(); |
---|
| 893 | } |
---|
| 894 | |
---|
[412] | 895 | ///////// Phase 1 : global vsegs containing a PTAB (two loops required) |
---|
| 896 | |
---|
[258] | 897 | #if BOOT_DEBUG_PT |
---|
[490] | 898 | _get_lock(&lock_tty); |
---|
| 899 | _puts("\n[BOOT DEBUG] map PTAB global vsegs in cluster["); |
---|
| 900 | _putd(x_cluster); |
---|
| 901 | _puts(","); |
---|
| 902 | _putd(y_cluster); |
---|
| 903 | _puts("]"); |
---|
| 904 | _puts("\n"); |
---|
| 905 | _release_lock(&lock_tty); |
---|
[258] | 906 | #endif |
---|
| 907 | |
---|
[412] | 908 | for (vseg_id = 0; vseg_id < header->globals; vseg_id++) |
---|
| 909 | { |
---|
| 910 | unsigned int vobj_id = vseg[vseg_id].vobj_offset; |
---|
[490] | 911 | pseg = _get_pseg_base(header) + vseg[vseg_id].psegid; |
---|
| 912 | cluster = _get_cluster_base(header) + pseg->clusterid; |
---|
| 913 | if ( (vobj[vobj_id].type == VOBJ_TYPE_PTAB) && |
---|
| 914 | (cluster->x == x_cluster) && |
---|
| 915 | (cluster->y == y_cluster)) |
---|
[412] | 916 | { |
---|
[427] | 917 | boot_vseg_map( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 918 | vseg[vseg_id].mapped = 1; |
---|
| 919 | } |
---|
| 920 | } |
---|
[258] | 921 | |
---|
[490] | 922 | _barrier_wait(&barrier_boot); |
---|
| 923 | |
---|
[258] | 924 | for (vseg_id = 0; vseg_id < header->globals; vseg_id++) |
---|
| 925 | { |
---|
[412] | 926 | unsigned int vobj_id = vseg[vseg_id].vobj_offset; |
---|
[490] | 927 | pseg = _get_pseg_base(header) + vseg[vseg_id].psegid; |
---|
| 928 | cluster = _get_cluster_base(header) + pseg->clusterid; |
---|
| 929 | if ( (vobj[vobj_id].type == VOBJ_TYPE_PTAB) && |
---|
| 930 | (cluster->x == x_cluster) && |
---|
| 931 | (cluster->y == y_cluster)) |
---|
[412] | 932 | { |
---|
[427] | 933 | boot_vseg_pte( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 934 | vseg[vseg_id].mapped = 1; |
---|
| 935 | } |
---|
[258] | 936 | } |
---|
| 937 | |
---|
[490] | 938 | _barrier_wait(&barrier_boot); |
---|
| 939 | |
---|
[412] | 940 | ///////// Phase 2 : global vsegs occupying more than one BPP (one loop) |
---|
| 941 | |
---|
| 942 | #if BOOT_DEBUG_PT |
---|
[490] | 943 | _get_lock(&lock_tty); |
---|
| 944 | _puts("\n[BOOT DEBUG] map all multi-BPP global vseg in cluster["); |
---|
| 945 | _putd(x_cluster); |
---|
| 946 | _puts(","); |
---|
| 947 | _putd(y_cluster); |
---|
| 948 | _puts("]"); |
---|
| 949 | _puts("\n"); |
---|
| 950 | _release_lock(&lock_tty); |
---|
| 951 | #endif |
---|
[412] | 952 | |
---|
[258] | 953 | for (vseg_id = 0; vseg_id < header->globals; vseg_id++) |
---|
| 954 | { |
---|
[412] | 955 | unsigned int vobj_id = vseg[vseg_id].vobj_offset; |
---|
[490] | 956 | pseg = _get_pseg_base(header) + vseg[vseg_id].psegid; |
---|
| 957 | cluster = _get_cluster_base(header) + pseg->clusterid; |
---|
[412] | 958 | if ( (vobj[vobj_id].length > 0x200000) && |
---|
[490] | 959 | (vseg[vseg_id].mapped == 0) && |
---|
| 960 | (cluster->x == x_cluster) && |
---|
| 961 | (cluster->y == y_cluster)) |
---|
[412] | 962 | { |
---|
[427] | 963 | boot_vseg_map( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 964 | vseg[vseg_id].mapped = 1; |
---|
[427] | 965 | boot_vseg_pte( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 966 | } |
---|
[258] | 967 | } |
---|
| 968 | |
---|
[412] | 969 | ///////// Phase 3 : all others global vsegs (one loop) |
---|
[347] | 970 | |
---|
[412] | 971 | #if BOOT_DEBUG_PT |
---|
[490] | 972 | _get_lock(&lock_tty); |
---|
| 973 | _puts("\n[BOOT DEBUG] map all others global in cluster[ "); |
---|
| 974 | _putd(x_cluster); |
---|
| 975 | _puts(","); |
---|
| 976 | _putd(y_cluster); |
---|
| 977 | _puts("]"); |
---|
| 978 | _puts("\n"); |
---|
| 979 | _release_lock(&lock_tty); |
---|
[412] | 980 | #endif |
---|
| 981 | |
---|
| 982 | for (vseg_id = 0; vseg_id < header->globals; vseg_id++) |
---|
| 983 | { |
---|
[490] | 984 | unsigned int vobj_id = vseg[vseg_id].vobj_offset; |
---|
| 985 | pseg = _get_pseg_base(header) + vseg[vseg_id].psegid; |
---|
| 986 | cluster = _get_cluster_base(header) + pseg->clusterid; |
---|
| 987 | if ( (vobj[vobj_id].length <= 0x200000) && |
---|
| 988 | (vseg[vseg_id].mapped == 0) && |
---|
| 989 | (cluster->x == x_cluster) && |
---|
| 990 | (cluster->y == y_cluster)) |
---|
[412] | 991 | { |
---|
[427] | 992 | boot_vseg_map( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 993 | vseg[vseg_id].mapped = 1; |
---|
[427] | 994 | boot_vseg_pte( &vseg[vseg_id], 0xFFFFFFFF ); |
---|
[412] | 995 | } |
---|
| 996 | } |
---|
| 997 | |
---|
| 998 | ///////// Phase 4 : all private vsegs (two nested loops) |
---|
| 999 | |
---|
[258] | 1000 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
| 1001 | { |
---|
| 1002 | |
---|
| 1003 | #if BOOT_DEBUG_PT |
---|
[490] | 1004 | _get_lock(&lock_tty); |
---|
[412] | 1005 | _puts("\n[BOOT DEBUG] map private vsegs for vspace "); |
---|
| 1006 | _puts( vspace[vspace_id].name ); |
---|
[490] | 1007 | _puts(" in cluster[ "); |
---|
| 1008 | _putd(x_cluster); |
---|
| 1009 | _puts(","); |
---|
| 1010 | _putd(y_cluster); |
---|
| 1011 | _puts("]"); |
---|
[412] | 1012 | _puts("\n"); |
---|
[490] | 1013 | _release_lock(&lock_tty); |
---|
[258] | 1014 | #endif |
---|
| 1015 | |
---|
| 1016 | for (vseg_id = vspace[vspace_id].vseg_offset; |
---|
| 1017 | vseg_id < (vspace[vspace_id].vseg_offset + vspace[vspace_id].vsegs); |
---|
| 1018 | vseg_id++) |
---|
| 1019 | { |
---|
[490] | 1020 | pseg = _get_pseg_base(header) + vseg[vseg_id].psegid; |
---|
| 1021 | cluster = _get_cluster_base(header) + pseg->clusterid; |
---|
| 1022 | if((vseg[vseg_id].mapped == 0) && |
---|
| 1023 | (cluster->x == x_cluster) && |
---|
| 1024 | (cluster->y == y_cluster)) |
---|
| 1025 | { |
---|
| 1026 | boot_vseg_map( &vseg[vseg_id], vspace_id ); |
---|
| 1027 | vseg[vseg_id].mapped = 1; |
---|
| 1028 | boot_vseg_pte( &vseg[vseg_id], vspace_id ); |
---|
| 1029 | } |
---|
[258] | 1030 | } |
---|
| 1031 | } |
---|
| 1032 | |
---|
[490] | 1033 | #if (BOOT_DEBUG_PT > 2) |
---|
| 1034 | _get_lock(&lock_tty); |
---|
[309] | 1035 | mapping_vseg_t* curr; |
---|
| 1036 | mapping_pseg_t* pseg = _get_pseg_base(header); |
---|
| 1037 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 1038 | unsigned int pseg_id; |
---|
[258] | 1039 | for( pseg_id = 0 ; pseg_id < header->psegs ; pseg_id++ ) |
---|
| 1040 | { |
---|
[309] | 1041 | unsigned int cluster_id = pseg[pseg_id].clusterid; |
---|
[412] | 1042 | _puts("\n[BOOT DEBUG] vsegs mapped on pseg "); |
---|
[258] | 1043 | _puts( pseg[pseg_id].name ); |
---|
[309] | 1044 | _puts(" in cluster["); |
---|
| 1045 | _putd( cluster[cluster_id].x ); |
---|
| 1046 | _puts(","); |
---|
| 1047 | _putd( cluster[cluster_id].y ); |
---|
[412] | 1048 | _puts("]\n"); |
---|
[258] | 1049 | for( curr = (mapping_vseg_t*)pseg[pseg_id].next_vseg ; |
---|
| 1050 | curr != 0 ; |
---|
| 1051 | curr = (mapping_vseg_t*)curr->next_vseg ) |
---|
| 1052 | { |
---|
| 1053 | _puts(" - vseg "); |
---|
| 1054 | _puts( curr->name ); |
---|
| 1055 | _puts(" : len = "); |
---|
| 1056 | _putx( curr->length ); |
---|
| 1057 | _puts(" / vbase "); |
---|
[295] | 1058 | _putx( curr->vbase ); |
---|
[258] | 1059 | _puts(" / pbase "); |
---|
| 1060 | _putl( curr->pbase ); |
---|
| 1061 | _puts("\n"); |
---|
| 1062 | } |
---|
| 1063 | } |
---|
[490] | 1064 | _release_lock(&lock_tty); |
---|
[258] | 1065 | #endif |
---|
| 1066 | |
---|
[412] | 1067 | } // end boot_ptabs_init() |
---|
[258] | 1068 | |
---|
| 1069 | /////////////////////////////////////////////////////////////////////////////// |
---|
[452] | 1070 | // This function initializes the private vobjs that have the CONST type. |
---|
[258] | 1071 | // The MMU is supposed to be activated... |
---|
| 1072 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 1073 | void boot_vobjs_init() |
---|
| 1074 | { |
---|
[321] | 1075 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 1076 | mapping_vspace_t* vspace = _get_vspace_base(header); |
---|
| 1077 | mapping_vobj_t* vobj = _get_vobj_base(header); |
---|
| 1078 | |
---|
| 1079 | unsigned int vspace_id; |
---|
| 1080 | unsigned int vobj_id; |
---|
| 1081 | |
---|
| 1082 | // loop on the vspaces |
---|
| 1083 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
| 1084 | { |
---|
| 1085 | |
---|
| 1086 | #if BOOT_DEBUG_VOBJS |
---|
| 1087 | _puts("\n[BOOT DEBUG] ****** vobjs initialisation in vspace "); |
---|
| 1088 | _puts(vspace[vspace_id].name); |
---|
| 1089 | _puts(" ******\n"); |
---|
| 1090 | #endif |
---|
| 1091 | |
---|
[347] | 1092 | _set_mmu_ptpr( (unsigned int)(_ptabs_paddr[vspace_id][0][0] >> 13) ); |
---|
[258] | 1093 | |
---|
| 1094 | // loop on the vobjs |
---|
| 1095 | for (vobj_id = vspace[vspace_id].vobj_offset; |
---|
| 1096 | vobj_id < (vspace[vspace_id].vobj_offset + vspace[vspace_id].vobjs); |
---|
| 1097 | vobj_id++) |
---|
| 1098 | { |
---|
[452] | 1099 | if ( (vobj[vobj_id].type) == VOBJ_TYPE_CONST ) |
---|
[258] | 1100 | { |
---|
[309] | 1101 | #if BOOT_DEBUG_VOBJS |
---|
[258] | 1102 | _puts("CONST : "); |
---|
| 1103 | _puts(vobj[vobj_id].name); |
---|
[452] | 1104 | _puts(" / vaddr = "); |
---|
[309] | 1105 | _putx(vobj[vobj_id].vaddr); |
---|
[452] | 1106 | _puts(" / paddr = "); |
---|
[258] | 1107 | _putl(vobj[vobj_id].paddr); |
---|
[452] | 1108 | _puts(" / value = "); |
---|
[309] | 1109 | _putx(vobj[vobj_id].init); |
---|
| 1110 | _puts("\n"); |
---|
| 1111 | #endif |
---|
[452] | 1112 | unsigned int* addr = (unsigned int *) vobj[vobj_id].vbase; |
---|
| 1113 | *addr = vobj[vobj_id].init; |
---|
| 1114 | } |
---|
| 1115 | } |
---|
| 1116 | } |
---|
[258] | 1117 | } // end boot_vobjs_init() |
---|
| 1118 | |
---|
| 1119 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 1120 | // This function returns in the vbase and length buffers the virtual base |
---|
| 1121 | // address and the length of the segment allocated to the schedulers array |
---|
| 1122 | // in the cluster defined by the clusterid argument. |
---|
| 1123 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 1124 | void boot_get_sched_vaddr( unsigned int cluster_id, |
---|
| 1125 | unsigned int* vbase, |
---|
| 1126 | unsigned int* length ) |
---|
| 1127 | { |
---|
[321] | 1128 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 1129 | mapping_vobj_t* vobj = _get_vobj_base(header); |
---|
| 1130 | mapping_vseg_t* vseg = _get_vseg_base(header); |
---|
| 1131 | mapping_pseg_t* pseg = _get_pseg_base(header); |
---|
| 1132 | |
---|
| 1133 | unsigned int vseg_id; |
---|
| 1134 | unsigned int found = 0; |
---|
| 1135 | |
---|
| 1136 | for ( vseg_id = 0 ; (vseg_id < header->vsegs) && (found == 0) ; vseg_id++ ) |
---|
| 1137 | { |
---|
| 1138 | if ( (vobj[vseg[vseg_id].vobj_offset].type == VOBJ_TYPE_SCHED) && |
---|
[263] | 1139 | (pseg[vseg[vseg_id].psegid].clusterid == cluster_id ) ) |
---|
[258] | 1140 | { |
---|
| 1141 | *vbase = vseg[vseg_id].vbase; |
---|
| 1142 | *length = vobj[vseg[vseg_id].vobj_offset].length; |
---|
| 1143 | found = 1; |
---|
| 1144 | } |
---|
| 1145 | } |
---|
| 1146 | if ( found == 0 ) |
---|
| 1147 | { |
---|
[263] | 1148 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 1149 | _puts("\n[BOOT ERROR] No vobj of type SCHED in cluster ["); |
---|
| 1150 | _putd( cluster[cluster_id].x ); |
---|
| 1151 | _puts(","); |
---|
| 1152 | _putd( cluster[cluster_id].y ); |
---|
| 1153 | _puts("]\n"); |
---|
[258] | 1154 | _exit(); |
---|
| 1155 | } |
---|
| 1156 | } // end boot_get_sched_vaddr() |
---|
| 1157 | |
---|
| 1158 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1159 | // This function initialises all processors schedulers. |
---|
| 1160 | // This is done by processor 0, and the MMU must be activated. |
---|
[412] | 1161 | // - In Step 1, it initialises the _schedulers[x][y][l] pointers array, and scan |
---|
| 1162 | // the processors for a first initialisation of the schedulers: |
---|
| 1163 | // idle_task context, and HWI / SWI / PTI vectors. |
---|
[321] | 1164 | // - In Step 2, it scan all tasks in all vspaces to complete the tasks contexts, |
---|
| 1165 | // initialisation as specified in the mapping_info data structure. |
---|
[258] | 1166 | //////////////////////////////////////////////////////////////////////////////////// |
---|
| 1167 | void boot_schedulers_init() |
---|
| 1168 | { |
---|
[321] | 1169 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 1170 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 1171 | mapping_vspace_t* vspace = _get_vspace_base(header); |
---|
| 1172 | mapping_task_t* task = _get_task_base(header); |
---|
| 1173 | mapping_vobj_t* vobj = _get_vobj_base(header); |
---|
[295] | 1174 | mapping_periph_t* periph = _get_periph_base(header); |
---|
[258] | 1175 | mapping_irq_t* irq = _get_irq_base(header); |
---|
| 1176 | |
---|
| 1177 | unsigned int cluster_id; // cluster index in mapping_info |
---|
[295] | 1178 | unsigned int periph_id; // peripheral index in mapping_info |
---|
[258] | 1179 | unsigned int irq_id; // irq index in mapping_info |
---|
| 1180 | unsigned int vspace_id; // vspace index in mapping_info |
---|
| 1181 | unsigned int task_id; // task index in mapping_info |
---|
[321] | 1182 | unsigned int vobj_id; // vobj index in mapping_info |
---|
[258] | 1183 | |
---|
[321] | 1184 | unsigned int lpid; // local processor index (for several loops) |
---|
| 1185 | |
---|
[436] | 1186 | // WTI allocators to processors (for HWIs translated to WTIs) |
---|
| 1187 | // In all clusters the first NB_PROCS_MAX WTIs are reserved for WAKUP |
---|
[321] | 1188 | unsigned int alloc_wti_channel[X_SIZE*Y_SIZE]; // one per cluster |
---|
[258] | 1189 | |
---|
[321] | 1190 | // pointers on the XCU and PIC peripherals |
---|
| 1191 | mapping_periph_t* xcu = NULL; |
---|
| 1192 | mapping_periph_t* pic = NULL; |
---|
| 1193 | |
---|
[412] | 1194 | unsigned int sched_vbase; // schedulers array vbase address in a cluster |
---|
| 1195 | unsigned int sched_length; // schedulers array length |
---|
| 1196 | static_scheduler_t* psched; // pointer on processor scheduler |
---|
[321] | 1197 | |
---|
[258] | 1198 | ///////////////////////////////////////////////////////////////////////// |
---|
| 1199 | // Step 1 : loop on the clusters and on the processors |
---|
| 1200 | // to initialize the schedulers[] array of pointers, |
---|
[412] | 1201 | // idle task context and interrupt vectors. |
---|
[258] | 1202 | // Implementation note: |
---|
[347] | 1203 | // We need to use both (proc_id) to scan the mapping info structure, |
---|
| 1204 | // and (x,y,lpid) to access the schedulers array. |
---|
[258] | 1205 | |
---|
[263] | 1206 | for (cluster_id = 0 ; cluster_id < X_SIZE*Y_SIZE ; cluster_id++) |
---|
[258] | 1207 | { |
---|
[263] | 1208 | unsigned int x = cluster[cluster_id].x; |
---|
| 1209 | unsigned int y = cluster[cluster_id].y; |
---|
[258] | 1210 | |
---|
| 1211 | #if BOOT_DEBUG_SCHED |
---|
[263] | 1212 | _puts("\n[BOOT DEBUG] Initialise schedulers in cluster["); |
---|
| 1213 | _putd( x ); |
---|
| 1214 | _puts(","); |
---|
| 1215 | _putd( y ); |
---|
| 1216 | _puts("]\n"); |
---|
[258] | 1217 | #endif |
---|
[321] | 1218 | alloc_wti_channel[cluster_id] = NB_PROCS_MAX; |
---|
[258] | 1219 | |
---|
| 1220 | // checking processors number |
---|
[295] | 1221 | if ( cluster[cluster_id].procs > NB_PROCS_MAX ) |
---|
[258] | 1222 | { |
---|
[263] | 1223 | _puts("\n[BOOT ERROR] Too much processors in cluster["); |
---|
| 1224 | _putd( x ); |
---|
| 1225 | _puts(","); |
---|
| 1226 | _putd( y ); |
---|
| 1227 | _puts("]\n"); |
---|
[258] | 1228 | _exit(); |
---|
| 1229 | } |
---|
| 1230 | |
---|
[295] | 1231 | // no schedulers initialisation if nprocs == 0 |
---|
| 1232 | if ( cluster[cluster_id].procs > 0 ) |
---|
[258] | 1233 | { |
---|
[412] | 1234 | // get scheduler array virtual base address in cluster[cluster_id] |
---|
[295] | 1235 | boot_get_sched_vaddr( cluster_id, &sched_vbase, &sched_length ); |
---|
[258] | 1236 | |
---|
[412] | 1237 | if ( sched_length < (cluster[cluster_id].procs<<13) ) // 8 Kbytes per scheduler |
---|
[295] | 1238 | { |
---|
| 1239 | _puts("\n[BOOT ERROR] Schedulers segment too small in cluster["); |
---|
| 1240 | _putd( x ); |
---|
| 1241 | _puts(","); |
---|
| 1242 | _putd( y ); |
---|
| 1243 | _puts("]\n"); |
---|
| 1244 | _exit(); |
---|
| 1245 | } |
---|
[263] | 1246 | |
---|
[436] | 1247 | // scan peripherals to find the XCU and the PIC component |
---|
[321] | 1248 | |
---|
| 1249 | xcu = NULL; |
---|
[295] | 1250 | for ( periph_id = cluster[cluster_id].periph_offset ; |
---|
| 1251 | periph_id < cluster[cluster_id].periph_offset + cluster[cluster_id].periphs; |
---|
| 1252 | periph_id++ ) |
---|
| 1253 | { |
---|
[436] | 1254 | if( periph[periph_id].type == PERIPH_TYPE_XCU ) |
---|
[295] | 1255 | { |
---|
[321] | 1256 | xcu = &periph[periph_id]; |
---|
| 1257 | |
---|
| 1258 | if ( xcu->arg < cluster[cluster_id].procs ) |
---|
| 1259 | { |
---|
| 1260 | _puts("\n[BOOT ERROR] Not enough inputs for XCU["); |
---|
| 1261 | _putd( x ); |
---|
| 1262 | _puts(","); |
---|
| 1263 | _putd( y ); |
---|
| 1264 | _puts("]\n"); |
---|
| 1265 | _exit(); |
---|
| 1266 | } |
---|
[295] | 1267 | } |
---|
[321] | 1268 | if( periph[periph_id].type == PERIPH_TYPE_PIC ) |
---|
| 1269 | { |
---|
| 1270 | pic = &periph[periph_id]; |
---|
| 1271 | } |
---|
[295] | 1272 | } |
---|
[321] | 1273 | if ( xcu == NULL ) |
---|
[295] | 1274 | { |
---|
[436] | 1275 | _puts("\n[BOOT ERROR] No XCU component in cluster["); |
---|
[295] | 1276 | _putd( x ); |
---|
| 1277 | _puts(","); |
---|
| 1278 | _putd( y ); |
---|
| 1279 | _puts("]\n"); |
---|
| 1280 | _exit(); |
---|
| 1281 | } |
---|
| 1282 | |
---|
[412] | 1283 | // loop on processors for schedulers default values |
---|
[321] | 1284 | // initialisation, including WTI and PTI vectors |
---|
[295] | 1285 | for ( lpid = 0 ; lpid < cluster[cluster_id].procs ; lpid++ ) |
---|
| 1286 | { |
---|
[412] | 1287 | // pointer on processor scheduler |
---|
| 1288 | psched = (static_scheduler_t*)(sched_vbase + (lpid<<13)); |
---|
[295] | 1289 | |
---|
[412] | 1290 | // initialise the schedulers pointers array |
---|
| 1291 | _schedulers[x][y][lpid] = psched; |
---|
| 1292 | |
---|
[258] | 1293 | #if BOOT_DEBUG_SCHED |
---|
[412] | 1294 | unsigned int sched_vbase = (unsigned int)_schedulers[x][y][lpid]; |
---|
| 1295 | unsigned int sched_ppn; |
---|
| 1296 | unsigned int sched_flags; |
---|
| 1297 | paddr_t sched_pbase; |
---|
| 1298 | |
---|
| 1299 | page_table_t* ptab = (page_table_t*)(_ptabs_vaddr[0][x][y]); |
---|
| 1300 | _v2p_translate( ptab, sched_vbase>>12, &sched_ppn, &sched_flags ); |
---|
| 1301 | sched_pbase = ((paddr_t)sched_ppn)<<12; |
---|
| 1302 | |
---|
[295] | 1303 | _puts("\nProc["); |
---|
[263] | 1304 | _putd( x ); |
---|
[295] | 1305 | _puts(","); |
---|
[263] | 1306 | _putd( y ); |
---|
[295] | 1307 | _puts(","); |
---|
[263] | 1308 | _putd( lpid ); |
---|
[412] | 1309 | _puts("] : scheduler vbase = "); |
---|
| 1310 | _putx( sched_vbase ); |
---|
| 1311 | _puts(" : scheduler pbase = "); |
---|
| 1312 | _putl( sched_pbase ); |
---|
[258] | 1313 | _puts("\n"); |
---|
| 1314 | #endif |
---|
[295] | 1315 | // initialise the "tasks" and "current" variables default values |
---|
[412] | 1316 | psched->tasks = 0; |
---|
| 1317 | psched->current = IDLE_TASK_INDEX; |
---|
[258] | 1318 | |
---|
[321] | 1319 | // default values for HWI / PTI / SWI vectors (valid bit = 0) |
---|
[295] | 1320 | unsigned int slot; |
---|
| 1321 | for (slot = 0; slot < 32; slot++) |
---|
| 1322 | { |
---|
[412] | 1323 | psched->hwi_vector[slot] = 0; |
---|
| 1324 | psched->pti_vector[slot] = 0; |
---|
| 1325 | psched->wti_vector[slot] = 0; |
---|
[295] | 1326 | } |
---|
[258] | 1327 | |
---|
[321] | 1328 | // WTI[lpid] <= ISR_WAKUP / PTI[lpid] <= ISR_TICK |
---|
[412] | 1329 | psched->wti_vector[lpid] = ISR_WAKUP | 0x80000000; |
---|
| 1330 | psched->pti_vector[lpid] = ISR_TICK | 0x80000000; |
---|
[321] | 1331 | |
---|
[295] | 1332 | // initializes the idle_task context in scheduler: |
---|
| 1333 | // - the SR slot is 0xFF03 because this task run in kernel mode. |
---|
| 1334 | // - it uses the page table of vspace[0] |
---|
| 1335 | // - it uses the kernel TTY terminal |
---|
[392] | 1336 | // - slots containing addresses (SP, RA, EPC) |
---|
| 1337 | // must be initialised by kernel_init() |
---|
[258] | 1338 | |
---|
[412] | 1339 | psched->context[IDLE_TASK_INDEX][CTX_CR_ID] = 0; |
---|
| 1340 | psched->context[IDLE_TASK_INDEX][CTX_SR_ID] = 0xFF03; |
---|
| 1341 | psched->context[IDLE_TASK_INDEX][CTX_PTPR_ID] = _ptabs_paddr[0][x][y]>>13; |
---|
| 1342 | psched->context[IDLE_TASK_INDEX][CTX_PTAB_ID] = _ptabs_vaddr[0][x][y]; |
---|
| 1343 | psched->context[IDLE_TASK_INDEX][CTX_TTY_ID] = 0; |
---|
| 1344 | psched->context[IDLE_TASK_INDEX][CTX_LTID_ID] = IDLE_TASK_INDEX; |
---|
| 1345 | psched->context[IDLE_TASK_INDEX][CTX_VSID_ID] = 0; |
---|
| 1346 | psched->context[IDLE_TASK_INDEX][CTX_RUN_ID] = 1; |
---|
| 1347 | |
---|
[321] | 1348 | } // end for processors |
---|
[258] | 1349 | |
---|
[321] | 1350 | // scan HWIs connected to local XCU |
---|
| 1351 | // for round-robin allocation to processors |
---|
| 1352 | lpid = 0; |
---|
| 1353 | for ( irq_id = xcu->irq_offset ; |
---|
| 1354 | irq_id < xcu->irq_offset + xcu->irqs ; |
---|
[295] | 1355 | irq_id++ ) |
---|
[258] | 1356 | { |
---|
[321] | 1357 | unsigned int type = irq[irq_id].srctype; |
---|
| 1358 | unsigned int srcid = irq[irq_id].srcid; |
---|
| 1359 | unsigned int isr = irq[irq_id].isr & 0xFFFF; |
---|
| 1360 | unsigned int channel = irq[irq_id].channel << 16; |
---|
| 1361 | |
---|
| 1362 | if ( (type != IRQ_TYPE_HWI) || (srcid > 31) ) |
---|
[295] | 1363 | { |
---|
[321] | 1364 | _puts("\n[BOOT ERROR] Bad IRQ in XCU of cluster["); |
---|
[295] | 1365 | _putd( x ); |
---|
| 1366 | _puts(","); |
---|
| 1367 | _putd( y ); |
---|
| 1368 | _puts("]\n"); |
---|
| 1369 | _exit(); |
---|
| 1370 | } |
---|
[258] | 1371 | |
---|
[412] | 1372 | _schedulers[x][y][lpid]->hwi_vector[srcid] = isr | channel | 0x80000000; |
---|
[321] | 1373 | lpid = (lpid + 1) % cluster[cluster_id].procs; |
---|
[258] | 1374 | |
---|
[321] | 1375 | } // end for irqs |
---|
| 1376 | } // end if nprocs > 0 |
---|
| 1377 | } // end for clusters |
---|
[258] | 1378 | |
---|
[321] | 1379 | // If there is an external PIC component, we scan HWIs connected to PIC |
---|
| 1380 | // for Round Robin allocation (as WTI) to processors. |
---|
| 1381 | // We allocate one WTI per processor, starting from proc[0,0,0], |
---|
| 1382 | // and we increment (cluster_id, lpid) as required. |
---|
| 1383 | if ( pic != NULL ) |
---|
| 1384 | { |
---|
| 1385 | unsigned int cluster_id = 0; // index in clusters array |
---|
| 1386 | unsigned int lpid = 0; // processor local index |
---|
| 1387 | |
---|
| 1388 | // scan IRQS defined in PIC |
---|
| 1389 | for ( irq_id = pic->irq_offset ; |
---|
| 1390 | irq_id < pic->irq_offset + pic->irqs ; |
---|
| 1391 | irq_id++ ) |
---|
| 1392 | { |
---|
| 1393 | // compute next values for (cluster_id,lpid) |
---|
| 1394 | // if no more procesor available in current cluster |
---|
| 1395 | unsigned int overflow = 0; |
---|
| 1396 | while ( (lpid >= cluster[cluster_id].procs) || |
---|
| 1397 | (alloc_wti_channel[cluster_id] >= xcu->arg) ) |
---|
| 1398 | { |
---|
| 1399 | overflow++; |
---|
| 1400 | cluster_id = (cluster_id + 1) % (X_SIZE*Y_SIZE); |
---|
| 1401 | lpid = 0; |
---|
| 1402 | |
---|
| 1403 | // overflow detection |
---|
| 1404 | if ( overflow > (X_SIZE*Y_SIZE*NB_PROCS_MAX*32) ) |
---|
| 1405 | { |
---|
| 1406 | _puts("\n[BOOT ERROR] Not enough processors for external IRQs\n"); |
---|
| 1407 | _exit(); |
---|
| 1408 | } |
---|
[460] | 1409 | } // end while |
---|
[321] | 1410 | |
---|
| 1411 | unsigned int type = irq[irq_id].srctype; |
---|
| 1412 | unsigned int srcid = irq[irq_id].srcid; |
---|
| 1413 | unsigned int isr = irq[irq_id].isr & 0xFFFF; |
---|
| 1414 | unsigned int channel = irq[irq_id].channel << 16; |
---|
| 1415 | |
---|
| 1416 | if ( (type != IRQ_TYPE_HWI) || (srcid > 31) ) |
---|
| 1417 | { |
---|
| 1418 | _puts("\n[BOOT ERROR] Bad IRQ in PIC component\n"); |
---|
| 1419 | _exit(); |
---|
| 1420 | } |
---|
| 1421 | |
---|
| 1422 | // get scheduler[cluster_id] address |
---|
| 1423 | unsigned int x = cluster[cluster_id].x; |
---|
| 1424 | unsigned int y = cluster[cluster_id].y; |
---|
| 1425 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
---|
[412] | 1426 | psched = _schedulers[x][y][lpid]; |
---|
[321] | 1427 | |
---|
| 1428 | // update WTI vector for scheduler[cluster_id][lpid] |
---|
[412] | 1429 | unsigned int index = alloc_wti_channel[cluster_id]; |
---|
| 1430 | psched->wti_vector[index] = isr | channel | 0x80000000; |
---|
[460] | 1431 | |
---|
| 1432 | // increment pointers |
---|
[321] | 1433 | alloc_wti_channel[cluster_id] = index + 1; |
---|
[412] | 1434 | lpid = lpid + 1; |
---|
[321] | 1435 | |
---|
| 1436 | // update IRQ fields in mapping for PIC initialisation |
---|
| 1437 | irq[irq_id].dest_id = index; |
---|
| 1438 | irq[irq_id].dest_xy = cluster_xy; |
---|
| 1439 | |
---|
| 1440 | } // end for IRQs |
---|
| 1441 | } // end if PIC |
---|
| 1442 | |
---|
[258] | 1443 | #if BOOT_DEBUG_SCHED |
---|
[321] | 1444 | for ( cluster_id = 0 ; cluster_id < (X_SIZE*Y_SIZE) ; cluster_id++ ) |
---|
| 1445 | { |
---|
| 1446 | unsigned int x = cluster[cluster_id].x; |
---|
| 1447 | unsigned int y = cluster[cluster_id].y; |
---|
| 1448 | unsigned int slot; |
---|
| 1449 | unsigned int entry; |
---|
| 1450 | for ( lpid = 0 ; lpid < cluster[cluster_id].procs ; lpid++ ) |
---|
| 1451 | { |
---|
[412] | 1452 | psched = _schedulers[x][y][lpid]; |
---|
| 1453 | |
---|
[321] | 1454 | _puts("\n*** IRQS for proc["); |
---|
| 1455 | _putd( x ); |
---|
| 1456 | _puts(","); |
---|
| 1457 | _putd( y ); |
---|
[329] | 1458 | _puts(","); |
---|
[321] | 1459 | _putd( lpid ); |
---|
| 1460 | _puts("]\n"); |
---|
| 1461 | for ( slot = 0 ; slot < 32 ; slot++ ) |
---|
| 1462 | { |
---|
[412] | 1463 | entry = psched->hwi_vector[slot]; |
---|
[321] | 1464 | if ( entry & 0x80000000 ) |
---|
| 1465 | { |
---|
| 1466 | _puts(" - HWI "); |
---|
| 1467 | _putd( slot ); |
---|
| 1468 | _puts(" / isrtype = "); |
---|
| 1469 | _putd( entry & 0xFFFF ); |
---|
| 1470 | _puts(" / channel = "); |
---|
| 1471 | _putd( (entry >> 16) & 0x7FFF ); |
---|
| 1472 | _puts("\n"); |
---|
| 1473 | } |
---|
| 1474 | } |
---|
| 1475 | for ( slot = 0 ; slot < 32 ; slot++ ) |
---|
| 1476 | { |
---|
[412] | 1477 | entry = psched->wti_vector[slot]; |
---|
[321] | 1478 | if ( entry & 0x80000000 ) |
---|
| 1479 | { |
---|
| 1480 | _puts(" - WTI "); |
---|
| 1481 | _putd( slot ); |
---|
| 1482 | _puts(" / isrtype = "); |
---|
| 1483 | _putd( entry & 0xFFFF ); |
---|
| 1484 | _puts(" / channel = "); |
---|
| 1485 | _putd( (entry >> 16) & 0x7FFF ); |
---|
| 1486 | _puts("\n"); |
---|
| 1487 | } |
---|
| 1488 | } |
---|
| 1489 | for ( slot = 0 ; slot < 32 ; slot++ ) |
---|
| 1490 | { |
---|
[412] | 1491 | entry = psched->pti_vector[slot]; |
---|
[321] | 1492 | if ( entry & 0x80000000 ) |
---|
| 1493 | { |
---|
| 1494 | _puts(" - PTI "); |
---|
| 1495 | _putd( slot ); |
---|
| 1496 | _puts(" / isrtype = "); |
---|
| 1497 | _putd( entry & 0xFFFF ); |
---|
| 1498 | _puts(" / channel = "); |
---|
| 1499 | _putd( (entry >> 16) & 0x7FFF ); |
---|
| 1500 | _puts("\n"); |
---|
| 1501 | } |
---|
| 1502 | } |
---|
| 1503 | } |
---|
| 1504 | } |
---|
[258] | 1505 | #endif |
---|
| 1506 | |
---|
| 1507 | /////////////////////////////////////////////////////////////////// |
---|
[295] | 1508 | // Step 2 : loop on the vspaces and the tasks to complete |
---|
| 1509 | // the schedulers and task contexts initialisation. |
---|
[258] | 1510 | |
---|
| 1511 | for (vspace_id = 0; vspace_id < header->vspaces; vspace_id++) |
---|
| 1512 | { |
---|
| 1513 | // We must set the PTPR depending on the vspace, because the start_vector |
---|
| 1514 | // and the stack address are defined in virtual space. |
---|
[347] | 1515 | _set_mmu_ptpr( (unsigned int)(_ptabs_paddr[vspace_id][0][0] >> 13) ); |
---|
[258] | 1516 | |
---|
[412] | 1517 | // loop on the tasks in vspace (task_id is the global index in mapping) |
---|
[258] | 1518 | for (task_id = vspace[vspace_id].task_offset; |
---|
| 1519 | task_id < (vspace[vspace_id].task_offset + vspace[vspace_id].tasks); |
---|
| 1520 | task_id++) |
---|
| 1521 | { |
---|
[295] | 1522 | // compute the cluster coordinates & local processor index |
---|
[263] | 1523 | unsigned int x = cluster[task[task_id].clusterid].x; |
---|
| 1524 | unsigned int y = cluster[task[task_id].clusterid].y; |
---|
| 1525 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
---|
[295] | 1526 | unsigned int lpid = task[task_id].proclocid; |
---|
[263] | 1527 | |
---|
[258] | 1528 | #if BOOT_DEBUG_SCHED |
---|
| 1529 | _puts("\n[BOOT DEBUG] Initialise context for task "); |
---|
| 1530 | _puts( task[task_id].name ); |
---|
| 1531 | _puts(" in vspace "); |
---|
| 1532 | _puts( vspace[vspace_id].name ); |
---|
[309] | 1533 | _puts("\n"); |
---|
[258] | 1534 | #endif |
---|
| 1535 | // compute gpid (global processor index) and scheduler base address |
---|
[427] | 1536 | unsigned int gpid = (cluster_xy << P_WIDTH) + lpid; |
---|
[347] | 1537 | psched = _schedulers[x][y][lpid]; |
---|
[258] | 1538 | |
---|
| 1539 | // ctx_sr : value required before an eret instruction |
---|
[490] | 1540 | unsigned int ctx_sr = 0x2000FF13; |
---|
[258] | 1541 | |
---|
| 1542 | // ctx_ptpr : page table physical base address (shifted by 13 bit) |
---|
[347] | 1543 | unsigned int ctx_ptpr = (unsigned int)(_ptabs_paddr[vspace_id][x][y] >> 13); |
---|
[258] | 1544 | |
---|
| 1545 | // ctx_ptab : page_table virtual base address |
---|
[412] | 1546 | unsigned int ctx_ptab = _ptabs_vaddr[vspace_id][x][y]; |
---|
[258] | 1547 | |
---|
| 1548 | // ctx_epc : Get the virtual address of the memory location containing |
---|
| 1549 | // the task entry point : the start_vector is stored by GCC in the seg_data |
---|
| 1550 | // segment and we must wait the .elf loading to get the entry point value... |
---|
[321] | 1551 | vobj_id = vspace[vspace_id].start_vobj_id; |
---|
[412] | 1552 | unsigned int ctx_epc = vobj[vobj_id].vbase + (task[task_id].startid)*4; |
---|
[258] | 1553 | |
---|
| 1554 | // ctx_sp : Get the vobj containing the stack |
---|
[321] | 1555 | vobj_id = task[task_id].stack_vobj_id; |
---|
[412] | 1556 | unsigned int ctx_sp = vobj[vobj_id].vbase + vobj[vobj_id].length; |
---|
[258] | 1557 | |
---|
| 1558 | // get local task index in scheduler |
---|
| 1559 | unsigned int ltid = psched->tasks; |
---|
| 1560 | |
---|
[267] | 1561 | // get vspace thread index |
---|
| 1562 | unsigned int thread_id = task[task_id].trdid; |
---|
| 1563 | |
---|
[258] | 1564 | if (ltid >= IDLE_TASK_INDEX) |
---|
| 1565 | { |
---|
| 1566 | _puts("\n[BOOT ERROR] in boot_schedulers_init() : "); |
---|
| 1567 | _putd( ltid ); |
---|
| 1568 | _puts(" tasks allocated to processor "); |
---|
| 1569 | _putd( gpid ); |
---|
| 1570 | _puts(" / max is "); |
---|
| 1571 | _putd( IDLE_TASK_INDEX ); |
---|
| 1572 | _puts("\n"); |
---|
| 1573 | _exit(); |
---|
| 1574 | } |
---|
| 1575 | |
---|
| 1576 | // update the "tasks" and "current" fields in scheduler: |
---|
| 1577 | // the first task to execute is task 0 as soon as there is at least |
---|
| 1578 | // one task allocated to processor. |
---|
| 1579 | psched->tasks = ltid + 1; |
---|
| 1580 | psched->current = 0; |
---|
| 1581 | |
---|
[436] | 1582 | // initializes the task context |
---|
[452] | 1583 | psched->context[ltid][CTX_CR_ID] = 0; |
---|
| 1584 | psched->context[ltid][CTX_SR_ID] = ctx_sr; |
---|
| 1585 | psched->context[ltid][CTX_SP_ID] = ctx_sp; |
---|
| 1586 | psched->context[ltid][CTX_EPC_ID] = ctx_epc; |
---|
| 1587 | psched->context[ltid][CTX_PTPR_ID] = ctx_ptpr; |
---|
| 1588 | psched->context[ltid][CTX_PTAB_ID] = ctx_ptab; |
---|
| 1589 | psched->context[ltid][CTX_LTID_ID] = ltid; |
---|
| 1590 | psched->context[ltid][CTX_GTID_ID] = task_id; |
---|
| 1591 | psched->context[ltid][CTX_TRDID_ID] = thread_id; |
---|
| 1592 | psched->context[ltid][CTX_VSID_ID] = vspace_id; |
---|
| 1593 | psched->context[ltid][CTX_RUN_ID] = 1; |
---|
[258] | 1594 | |
---|
[452] | 1595 | psched->context[ltid][CTX_TTY_ID] = 0xFFFFFFFF; |
---|
| 1596 | psched->context[ltid][CTX_CMA_FB_ID] = 0xFFFFFFFF; |
---|
| 1597 | psched->context[ltid][CTX_CMA_RX_ID] = 0xFFFFFFFF; |
---|
| 1598 | psched->context[ltid][CTX_CMA_TX_ID] = 0xFFFFFFFF; |
---|
| 1599 | psched->context[ltid][CTX_NIC_RX_ID] = 0xFFFFFFFF; |
---|
| 1600 | psched->context[ltid][CTX_NIC_TX_ID] = 0xFFFFFFFF; |
---|
| 1601 | psched->context[ltid][CTX_TIM_ID] = 0xFFFFFFFF; |
---|
| 1602 | psched->context[ltid][CTX_HBA_ID] = 0xFFFFFFFF; |
---|
[436] | 1603 | |
---|
[258] | 1604 | #if BOOT_DEBUG_SCHED |
---|
| 1605 | _puts("\nTask "); |
---|
| 1606 | _putd( task_id ); |
---|
[295] | 1607 | _puts(" allocated to processor["); |
---|
[309] | 1608 | _putd( x ); |
---|
[295] | 1609 | _puts(","); |
---|
[309] | 1610 | _putd( y ); |
---|
[295] | 1611 | _puts(","); |
---|
[309] | 1612 | _putd( lpid ); |
---|
[295] | 1613 | _puts("]\n - ctx[LTID] = "); |
---|
[258] | 1614 | _putd( psched->context[ltid][CTX_LTID_ID] ); |
---|
| 1615 | _puts("\n - ctx[SR] = "); |
---|
| 1616 | _putx( psched->context[ltid][CTX_SR_ID] ); |
---|
| 1617 | _puts("\n - ctx[SP] = "); |
---|
| 1618 | _putx( psched->context[ltid][CTX_SP_ID] ); |
---|
| 1619 | _puts("\n - ctx[EPC] = "); |
---|
| 1620 | _putx( psched->context[ltid][CTX_EPC_ID] ); |
---|
| 1621 | _puts("\n - ctx[PTPR] = "); |
---|
| 1622 | _putx( psched->context[ltid][CTX_PTPR_ID] ); |
---|
| 1623 | _puts("\n - ctx[PTAB] = "); |
---|
| 1624 | _putx( psched->context[ltid][CTX_PTAB_ID] ); |
---|
| 1625 | _puts("\n - ctx[GTID] = "); |
---|
[295] | 1626 | _putx( psched->context[ltid][CTX_GTID_ID] ); |
---|
[258] | 1627 | _puts("\n - ctx[VSID] = "); |
---|
[295] | 1628 | _putx( psched->context[ltid][CTX_VSID_ID] ); |
---|
[267] | 1629 | _puts("\n - ctx[TRDID] = "); |
---|
[295] | 1630 | _putx( psched->context[ltid][CTX_TRDID_ID] ); |
---|
[258] | 1631 | _puts("\n"); |
---|
| 1632 | #endif |
---|
| 1633 | |
---|
| 1634 | } // end loop on tasks |
---|
| 1635 | } // end loop on vspaces |
---|
[412] | 1636 | } // end boot_schedulers_init() |
---|
[258] | 1637 | |
---|
| 1638 | ////////////////////////////////////////////////////////////////////////////////// |
---|
| 1639 | // This function loads the map.bin file from block device. |
---|
| 1640 | ////////////////////////////////////////////////////////////////////////////////// |
---|
| 1641 | void boot_mapping_init() |
---|
| 1642 | { |
---|
[347] | 1643 | // desactivates IOC interrupt |
---|
[289] | 1644 | _ioc_init( 0 ); |
---|
[258] | 1645 | |
---|
[347] | 1646 | // open file "map.bin" |
---|
[295] | 1647 | int fd_id = _fat_open( IOC_BOOT_MODE, |
---|
[258] | 1648 | "map.bin", |
---|
| 1649 | 0 ); // no creation |
---|
| 1650 | if ( fd_id == -1 ) |
---|
| 1651 | { |
---|
| 1652 | _puts("\n[BOOT ERROR] : map.bin file not found \n"); |
---|
| 1653 | _exit(); |
---|
| 1654 | } |
---|
| 1655 | |
---|
| 1656 | #if BOOT_DEBUG_MAPPING |
---|
| 1657 | _puts("\n[BOOT] map.bin file successfully open at cycle "); |
---|
| 1658 | _putd(_get_proctime()); |
---|
| 1659 | _puts("\n"); |
---|
| 1660 | #endif |
---|
| 1661 | |
---|
[412] | 1662 | // get "map.bin" file size (from fat) and check it |
---|
[258] | 1663 | unsigned int size = fat.fd[fd_id].file_size; |
---|
[347] | 1664 | |
---|
| 1665 | if ( size > SEG_BOOT_MAPPING_SIZE ) |
---|
| 1666 | { |
---|
| 1667 | _puts("\n[BOOT ERROR] : allocated segment too small for map.bin file\n"); |
---|
| 1668 | _exit(); |
---|
| 1669 | } |
---|
| 1670 | |
---|
[477] | 1671 | #if BOOT_DEBUG_MAPPING |
---|
| 1672 | _puts("\n[BOOT] map.bin buffer pbase = "); |
---|
| 1673 | _putx( SEG_BOOT_MAPPING_BASE ); |
---|
| 1674 | _puts(" / buffer size = "); |
---|
| 1675 | _putx( SEG_BOOT_MAPPING_SIZE ); |
---|
| 1676 | _puts(" / file size = "); |
---|
| 1677 | _putx( size ); |
---|
| 1678 | _puts("\n"); |
---|
| 1679 | #endif |
---|
| 1680 | |
---|
[347] | 1681 | // load "map.bin" file into buffer |
---|
[258] | 1682 | unsigned int nblocks = size >> 9; |
---|
| 1683 | unsigned int offset = size & 0x1FF; |
---|
| 1684 | if ( offset ) nblocks++; |
---|
| 1685 | |
---|
[295] | 1686 | unsigned int ok = _fat_read( IOC_BOOT_MODE, |
---|
[258] | 1687 | fd_id, |
---|
[321] | 1688 | (unsigned int*)SEG_BOOT_MAPPING_BASE, |
---|
[258] | 1689 | nblocks, |
---|
| 1690 | 0 ); // offset |
---|
| 1691 | if ( ok == -1 ) |
---|
| 1692 | { |
---|
| 1693 | _puts("\n[BOOT ERROR] : unable to load map.bin file \n"); |
---|
| 1694 | _exit(); |
---|
| 1695 | } |
---|
[477] | 1696 | |
---|
| 1697 | #if BOOT_DEBUG_MAPPING |
---|
| 1698 | _puts("\n[BOOT] map.bin file successfully loaded at cycle "); |
---|
| 1699 | _putd(_get_proctime()); |
---|
| 1700 | _puts("\n"); |
---|
| 1701 | #endif |
---|
| 1702 | |
---|
| 1703 | // check mapping signature, number of clusters, number of vspaces |
---|
| 1704 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1705 | if ( (header->signature != IN_MAPPING_SIGNATURE) || |
---|
| 1706 | (header->x_size != X_SIZE) || |
---|
| 1707 | (header->y_size != Y_SIZE) || |
---|
| 1708 | (header->vspaces > GIET_NB_VSPACE_MAX) ) |
---|
| 1709 | { |
---|
| 1710 | |
---|
| 1711 | #if BOOT_DEBUG_MAPPING |
---|
| 1712 | unsigned int word; |
---|
| 1713 | unsigned int line; |
---|
| 1714 | unsigned int* pointer = (unsigned int*)SEG_BOOT_MAPPING_BASE; |
---|
| 1715 | _puts("\n[BOOT] First block of mapping\n"); |
---|
| 1716 | for ( line = 0 ; line < 8 ; line++ ) |
---|
| 1717 | { |
---|
| 1718 | for ( word = 0 ; word < 8 ; word++ ) |
---|
| 1719 | { |
---|
| 1720 | _puts(" | "); |
---|
| 1721 | _putx( *(pointer + word) ); |
---|
| 1722 | } |
---|
| 1723 | _puts(" |\n"); |
---|
| 1724 | pointer = pointer + 8; |
---|
| 1725 | } |
---|
| 1726 | #endif |
---|
| 1727 | _puts("\n[BOOT ERROR] Illegal mapping signature: "); |
---|
| 1728 | _putx(header->signature); |
---|
| 1729 | _puts("\n"); |
---|
| 1730 | _exit(); |
---|
| 1731 | } |
---|
| 1732 | |
---|
| 1733 | #if BOOT_DEBUG_MAPPING |
---|
| 1734 | _puts("\n[BOOT] map.bin file checked at cycle "); |
---|
| 1735 | _putd(_get_proctime()); |
---|
| 1736 | _puts("\n"); |
---|
| 1737 | #endif |
---|
| 1738 | |
---|
| 1739 | // close file "map.bin" |
---|
[258] | 1740 | _fat_close( fd_id ); |
---|
| 1741 | |
---|
| 1742 | } // end boot_mapping_init() |
---|
| 1743 | |
---|
| 1744 | |
---|
[347] | 1745 | ///////////////////////////////////////////////////////////////////////////////////// |
---|
| 1746 | // This function load all loadable segments for one .elf file, identified |
---|
| 1747 | // by the "pathname" argument. Some loadable segments can be copied in several |
---|
| 1748 | // clusters: same virtual address but different physical addresses. |
---|
| 1749 | // - It open the file. |
---|
[359] | 1750 | // - It loads the complete file in the dedicated boot_elf_buffer. |
---|
| 1751 | // - It copies each loadable segments at the virtual address defined in |
---|
| 1752 | // the .elf file, making several copies if the target vseg is not local. |
---|
[347] | 1753 | // - It closes the file. |
---|
[359] | 1754 | // This function is supposed to be executed by processor[0,0,0]. |
---|
[347] | 1755 | // Note: |
---|
| 1756 | // We must use physical addresses to reach the destination buffers that |
---|
| 1757 | // can be located in remote clusters. We use either a _physical_memcpy(), |
---|
| 1758 | // or a _dma_physical_copy() if DMA is available. |
---|
| 1759 | ////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1760 | void load_one_elf_file( unsigned int is_kernel, // kernel file if non zero |
---|
[258] | 1761 | char* pathname, |
---|
[347] | 1762 | unsigned int vspace_id ) // to scan the proper vspace |
---|
[258] | 1763 | { |
---|
[347] | 1764 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 1765 | mapping_vspace_t * vspace = _get_vspace_base(header); |
---|
| 1766 | mapping_vseg_t * vseg = _get_vseg_base(header); |
---|
| 1767 | mapping_vobj_t * vobj = _get_vobj_base(header); |
---|
| 1768 | |
---|
[258] | 1769 | unsigned int seg_id; |
---|
| 1770 | |
---|
| 1771 | #if BOOT_DEBUG_ELF |
---|
| 1772 | _puts("\n[BOOT DEBUG] Start searching file "); |
---|
| 1773 | _puts( pathname ); |
---|
| 1774 | _puts(" at cycle "); |
---|
| 1775 | _putd( _get_proctime() ); |
---|
| 1776 | _puts("\n"); |
---|
| 1777 | #endif |
---|
| 1778 | |
---|
| 1779 | // open .elf file |
---|
[347] | 1780 | int fd_id = _fat_open( IOC_BOOT_MODE, |
---|
[258] | 1781 | pathname, |
---|
| 1782 | 0 ); // no creation |
---|
| 1783 | if ( fd_id < 0 ) |
---|
| 1784 | { |
---|
| 1785 | _puts("\n[BOOT ERROR] load_one_elf_file() : "); |
---|
| 1786 | _puts( pathname ); |
---|
| 1787 | _puts(" not found\n"); |
---|
| 1788 | _exit(); |
---|
| 1789 | } |
---|
| 1790 | |
---|
[359] | 1791 | // check buffer size versus file size |
---|
| 1792 | if ( fat.fd[fd_id].file_size > GIET_ELF_BUFFER_SIZE ) |
---|
[258] | 1793 | { |
---|
[460] | 1794 | _puts("\n[BOOT ERROR] in load_one_elf_file() : "); |
---|
[258] | 1795 | _puts( pathname ); |
---|
[460] | 1796 | _puts(" size = "); |
---|
| 1797 | _putx( fat.fd[fd_id].file_size ); |
---|
| 1798 | _puts("\n exceeds the GIET_ELF_BUFFERSIZE = "); |
---|
| 1799 | _putx( GIET_ELF_BUFFER_SIZE ); |
---|
| 1800 | _puts("\n"); |
---|
[258] | 1801 | _exit(); |
---|
| 1802 | } |
---|
| 1803 | |
---|
| 1804 | // compute number of sectors |
---|
| 1805 | unsigned int nbytes = fat.fd[fd_id].file_size; |
---|
| 1806 | unsigned int nsectors = nbytes>>9; |
---|
| 1807 | if( nbytes & 0x1FF) nsectors++; |
---|
| 1808 | |
---|
[359] | 1809 | // load file in elf buffer |
---|
[347] | 1810 | if( _fat_read( IOC_BOOT_MODE, |
---|
[258] | 1811 | fd_id, |
---|
[359] | 1812 | boot_elf_buffer, |
---|
[258] | 1813 | nsectors, |
---|
| 1814 | 0 ) != nsectors ) |
---|
| 1815 | { |
---|
| 1816 | _puts("\n[BOOT ERROR] load_one_elf_file() : unexpected EOF for file "); |
---|
| 1817 | _puts( pathname ); |
---|
| 1818 | _puts("\n"); |
---|
| 1819 | _exit(); |
---|
| 1820 | } |
---|
| 1821 | |
---|
| 1822 | // Check ELF Magic Number in ELF header |
---|
[359] | 1823 | Elf32_Ehdr* elf_header_ptr = (Elf32_Ehdr*)boot_elf_buffer; |
---|
[258] | 1824 | |
---|
| 1825 | if ( (elf_header_ptr->e_ident[EI_MAG0] != ELFMAG0) || |
---|
| 1826 | (elf_header_ptr->e_ident[EI_MAG1] != ELFMAG1) || |
---|
| 1827 | (elf_header_ptr->e_ident[EI_MAG2] != ELFMAG2) || |
---|
| 1828 | (elf_header_ptr->e_ident[EI_MAG3] != ELFMAG3) ) |
---|
| 1829 | { |
---|
| 1830 | _puts("\n[BOOT ERROR] load_elf() : file "); |
---|
| 1831 | _puts( pathname ); |
---|
| 1832 | _puts(" does not use ELF format\n"); |
---|
| 1833 | _exit(); |
---|
| 1834 | } |
---|
| 1835 | |
---|
| 1836 | // get program header table pointer |
---|
| 1837 | unsigned int pht_index = elf_header_ptr->e_phoff; |
---|
| 1838 | if( pht_index == 0 ) |
---|
| 1839 | { |
---|
| 1840 | _puts("\n[BOOT ERROR] load_one_elf_file() : file "); |
---|
| 1841 | _puts( pathname ); |
---|
| 1842 | _puts(" does not contain loadable segment\n"); |
---|
| 1843 | _exit(); |
---|
| 1844 | } |
---|
[359] | 1845 | Elf32_Phdr* elf_pht_ptr = (Elf32_Phdr*)(boot_elf_buffer + pht_index); |
---|
[258] | 1846 | |
---|
| 1847 | // get number of segments |
---|
| 1848 | unsigned int nsegments = elf_header_ptr->e_phnum; |
---|
| 1849 | |
---|
[347] | 1850 | _puts("\n[BOOT] File "); |
---|
| 1851 | _puts( pathname ); |
---|
| 1852 | _puts(" loaded at cycle "); |
---|
| 1853 | _putd( _get_proctime() ); |
---|
| 1854 | _puts("\n"); |
---|
[258] | 1855 | |
---|
[347] | 1856 | // Loop on loadable segments in the .elf file |
---|
[258] | 1857 | for (seg_id = 0 ; seg_id < nsegments ; seg_id++) |
---|
| 1858 | { |
---|
| 1859 | if(elf_pht_ptr[seg_id].p_type == PT_LOAD) |
---|
| 1860 | { |
---|
| 1861 | // Get segment attributes |
---|
| 1862 | unsigned int seg_vaddr = elf_pht_ptr[seg_id].p_vaddr; |
---|
| 1863 | unsigned int seg_offset = elf_pht_ptr[seg_id].p_offset; |
---|
| 1864 | unsigned int seg_filesz = elf_pht_ptr[seg_id].p_filesz; |
---|
| 1865 | unsigned int seg_memsz = elf_pht_ptr[seg_id].p_memsz; |
---|
| 1866 | |
---|
[347] | 1867 | #if BOOT_DEBUG_ELF |
---|
| 1868 | _puts(" - segment "); |
---|
| 1869 | _putd( seg_id ); |
---|
| 1870 | _puts(" / vaddr = "); |
---|
| 1871 | _putx( seg_vaddr ); |
---|
| 1872 | _puts(" / file_size = "); |
---|
| 1873 | _putx( seg_filesz ); |
---|
| 1874 | _puts("\n"); |
---|
| 1875 | #endif |
---|
| 1876 | |
---|
[258] | 1877 | if( seg_memsz < seg_filesz ) |
---|
| 1878 | { |
---|
| 1879 | _puts("\n[BOOT ERROR] load_one_elf_file() : segment at vaddr = "); |
---|
| 1880 | _putx( seg_vaddr ); |
---|
| 1881 | _puts(" in file "); |
---|
| 1882 | _puts( pathname ); |
---|
[359] | 1883 | _puts(" has memsz < filesz \n"); |
---|
[258] | 1884 | _exit(); |
---|
| 1885 | } |
---|
| 1886 | |
---|
| 1887 | // fill empty space with 0 as required |
---|
| 1888 | if( seg_memsz > seg_filesz ) |
---|
| 1889 | { |
---|
| 1890 | unsigned int i; |
---|
[359] | 1891 | for( i = seg_filesz ; i < seg_memsz ; i++ ) boot_elf_buffer[i+seg_offset] = 0; |
---|
[258] | 1892 | } |
---|
| 1893 | |
---|
[359] | 1894 | unsigned int src_vaddr = (unsigned int)boot_elf_buffer + seg_offset; |
---|
[258] | 1895 | |
---|
[347] | 1896 | // search all vsegs matching the virtual address |
---|
| 1897 | unsigned int vseg_first; |
---|
| 1898 | unsigned int vseg_last; |
---|
| 1899 | unsigned int vseg_id; |
---|
| 1900 | unsigned int found = 0; |
---|
| 1901 | if ( is_kernel ) |
---|
| 1902 | { |
---|
| 1903 | vseg_first = 0; |
---|
| 1904 | vseg_last = header->globals; |
---|
| 1905 | } |
---|
| 1906 | else |
---|
| 1907 | { |
---|
| 1908 | vseg_first = vspace[vspace_id].vseg_offset; |
---|
| 1909 | vseg_last = vseg_first + vspace[vspace_id].vsegs; |
---|
| 1910 | } |
---|
| 1911 | |
---|
| 1912 | for ( vseg_id = vseg_first ; vseg_id < vseg_last ; vseg_id++ ) |
---|
| 1913 | { |
---|
| 1914 | if ( seg_vaddr == vseg[vseg_id].vbase ) // matching |
---|
| 1915 | { |
---|
| 1916 | found = 1; |
---|
| 1917 | |
---|
| 1918 | // get destination buffer physical address and size |
---|
| 1919 | paddr_t seg_paddr = vseg[vseg_id].pbase; |
---|
| 1920 | unsigned int vobj_id = vseg[vseg_id].vobj_offset; |
---|
| 1921 | unsigned int seg_size = vobj[vobj_id].length; |
---|
| 1922 | |
---|
[258] | 1923 | #if BOOT_DEBUG_ELF |
---|
[347] | 1924 | _puts(" loaded into vseg "); |
---|
| 1925 | _puts( vseg[vseg_id].name ); |
---|
| 1926 | _puts(" at paddr = "); |
---|
| 1927 | _putl( seg_paddr ); |
---|
| 1928 | _puts(" (buffer size = "); |
---|
| 1929 | _putx( seg_size ); |
---|
| 1930 | _puts(")\n"); |
---|
[258] | 1931 | #endif |
---|
[347] | 1932 | // check vseg size |
---|
| 1933 | if ( seg_size < seg_filesz ) |
---|
| 1934 | { |
---|
| 1935 | _puts("\n[BOOT ERROR] in load_one_elf_file()\n"); |
---|
| 1936 | _puts("vseg "); |
---|
| 1937 | _puts( vseg[vseg_id].name ); |
---|
| 1938 | _puts(" is to small for loadable segment "); |
---|
| 1939 | _putx( seg_vaddr ); |
---|
| 1940 | _puts(" in file "); |
---|
| 1941 | _puts( pathname ); |
---|
| 1942 | _puts(" \n"); |
---|
| 1943 | _exit(); |
---|
| 1944 | } |
---|
[258] | 1945 | |
---|
[347] | 1946 | // copy the segment from boot buffer to destination buffer |
---|
| 1947 | // using DMA channel[0,0,0] if it is available. |
---|
| 1948 | if( NB_DMA_CHANNELS > 0 ) |
---|
| 1949 | { |
---|
| 1950 | _dma_physical_copy( 0, // DMA in cluster[0,0] |
---|
| 1951 | 0, // DMA channel 0 |
---|
| 1952 | (paddr_t)seg_paddr, // destination paddr |
---|
| 1953 | (paddr_t)src_vaddr, // source paddr |
---|
| 1954 | seg_filesz ); // size |
---|
| 1955 | } |
---|
| 1956 | else |
---|
| 1957 | { |
---|
| 1958 | _physical_memcpy( (paddr_t)seg_paddr, // destination paddr |
---|
| 1959 | (paddr_t)src_vaddr, // source paddr |
---|
| 1960 | seg_filesz ); // size |
---|
| 1961 | } |
---|
| 1962 | } |
---|
| 1963 | } // end for vsegs in vspace |
---|
| 1964 | |
---|
| 1965 | // check at least one matching vseg |
---|
| 1966 | if ( found == 0 ) |
---|
[258] | 1967 | { |
---|
[347] | 1968 | _puts("\n[BOOT ERROR] in load_one_elf_file()\n"); |
---|
| 1969 | _puts("vseg for loadable segment "); |
---|
| 1970 | _putx( seg_vaddr ); |
---|
| 1971 | _puts(" in file "); |
---|
| 1972 | _puts( pathname ); |
---|
[436] | 1973 | _puts(" not found: \n"); |
---|
| 1974 | _puts(" check consistency between the .py and .ld files...\n"); |
---|
[347] | 1975 | _exit(); |
---|
[258] | 1976 | } |
---|
| 1977 | } |
---|
[347] | 1978 | } // end for loadable segments |
---|
[258] | 1979 | |
---|
| 1980 | // close .elf file |
---|
| 1981 | _fat_close( fd_id ); |
---|
| 1982 | |
---|
| 1983 | } // end load_one_elf_file() |
---|
| 1984 | |
---|
| 1985 | |
---|
[347] | 1986 | /////i//////////////////////////////////////////////////////////////////////////////// |
---|
[258] | 1987 | // This function uses the map.bin data structure to load the "kernel.elf" file |
---|
[347] | 1988 | // as well as the various "application.elf" files into memory. |
---|
| 1989 | // - The "preloader.elf" file is not loaded, because it has been burned in the ROM. |
---|
| 1990 | // - The "boot.elf" file is not loaded, because it has been loaded by the preloader. |
---|
[295] | 1991 | // This function scans all vobjs defined in the map.bin data structure to collect |
---|
[347] | 1992 | // all .elf files pathnames, and calls the load_one_elf_file() for each .elf file. |
---|
| 1993 | // As the code can be replicated in several vsegs, the same code can be copied |
---|
| 1994 | // in one or several clusters by the load_one_elf_file() function. |
---|
| 1995 | ////////////////////////////////////////////////////////////////////////////////////// |
---|
[258] | 1996 | void boot_elf_load() |
---|
| 1997 | { |
---|
[321] | 1998 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 1999 | mapping_vspace_t* vspace = _get_vspace_base( header ); |
---|
| 2000 | mapping_vobj_t* vobj = _get_vobj_base( header ); |
---|
| 2001 | unsigned int vspace_id; |
---|
| 2002 | unsigned int vobj_id; |
---|
| 2003 | unsigned int found; |
---|
| 2004 | |
---|
| 2005 | // Scan all vobjs corresponding to global vsegs, |
---|
| 2006 | // to find the pathname to the kernel.elf file |
---|
| 2007 | found = 0; |
---|
| 2008 | for( vobj_id = 0 ; vobj_id < header->globals ; vobj_id++ ) |
---|
| 2009 | { |
---|
| 2010 | if(vobj[vobj_id].type == VOBJ_TYPE_ELF) |
---|
| 2011 | { |
---|
| 2012 | found = 1; |
---|
| 2013 | break; |
---|
| 2014 | } |
---|
| 2015 | } |
---|
| 2016 | |
---|
| 2017 | // We need one kernel.elf file |
---|
| 2018 | if (found == 0) |
---|
| 2019 | { |
---|
| 2020 | _puts("[BOOT ERROR] boot_elf_load() : kernel.elf file not found\n"); |
---|
| 2021 | _exit(); |
---|
| 2022 | } |
---|
| 2023 | |
---|
[347] | 2024 | // Load the kernel |
---|
| 2025 | load_one_elf_file( 1, // kernel file |
---|
| 2026 | vobj[vobj_id].binpath, // file pathname |
---|
[258] | 2027 | 0 ); // vspace 0 |
---|
| 2028 | |
---|
[347] | 2029 | // loop on the vspaces, scanning all vobjs in the vspace, |
---|
[258] | 2030 | // to find the pathname of the .elf file associated to the vspace. |
---|
| 2031 | for( vspace_id = 0 ; vspace_id < header->vspaces ; vspace_id++ ) |
---|
| 2032 | { |
---|
| 2033 | // loop on the vobjs in vspace (vobj_id is the global index) |
---|
| 2034 | unsigned int found = 0; |
---|
| 2035 | for (vobj_id = vspace[vspace_id].vobj_offset; |
---|
| 2036 | vobj_id < (vspace[vspace_id].vobj_offset + vspace[vspace_id].vobjs); |
---|
| 2037 | vobj_id++) |
---|
| 2038 | { |
---|
| 2039 | if(vobj[vobj_id].type == VOBJ_TYPE_ELF) |
---|
| 2040 | { |
---|
| 2041 | found = 1; |
---|
| 2042 | break; |
---|
| 2043 | } |
---|
| 2044 | } |
---|
| 2045 | |
---|
| 2046 | // We want one .elf file per vspace |
---|
| 2047 | if (found == 0) |
---|
| 2048 | { |
---|
| 2049 | _puts("[BOOT ERROR] boot_elf_load() : .elf file not found for vspace "); |
---|
| 2050 | _puts( vspace[vspace_id].name ); |
---|
| 2051 | _puts("\n"); |
---|
| 2052 | _exit(); |
---|
| 2053 | } |
---|
| 2054 | |
---|
[347] | 2055 | load_one_elf_file( 0, // not a kernel file |
---|
| 2056 | vobj[vobj_id].binpath, // file pathname |
---|
| 2057 | vspace_id ); // vspace index |
---|
[258] | 2058 | |
---|
| 2059 | } // end for vspaces |
---|
| 2060 | |
---|
| 2061 | } // end boot_elf_load() |
---|
| 2062 | |
---|
| 2063 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2064 | // This function intializes the periherals and coprocessors, as specified |
---|
| 2065 | // in the mapping_info file. |
---|
| 2066 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2067 | void boot_peripherals_init() |
---|
| 2068 | { |
---|
[321] | 2069 | mapping_header_t * header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[258] | 2070 | mapping_cluster_t * cluster = _get_cluster_base(header); |
---|
| 2071 | mapping_periph_t * periph = _get_periph_base(header); |
---|
| 2072 | mapping_vobj_t * vobj = _get_vobj_base(header); |
---|
| 2073 | mapping_coproc_t * coproc = _get_coproc_base(header); |
---|
| 2074 | mapping_cp_port_t * cp_port = _get_cp_port_base(header); |
---|
[295] | 2075 | mapping_irq_t * irq = _get_irq_base(header); |
---|
[258] | 2076 | |
---|
| 2077 | unsigned int cluster_id; |
---|
| 2078 | unsigned int periph_id; |
---|
| 2079 | unsigned int coproc_id; |
---|
| 2080 | unsigned int cp_port_id; |
---|
| 2081 | unsigned int channel_id; |
---|
| 2082 | |
---|
[263] | 2083 | // loop on all physical clusters |
---|
| 2084 | for (cluster_id = 0; cluster_id < X_SIZE*Y_SIZE; cluster_id++) |
---|
[258] | 2085 | { |
---|
[263] | 2086 | // computes cluster coordinates |
---|
| 2087 | unsigned int x = cluster[cluster_id].x; |
---|
| 2088 | unsigned int y = cluster[cluster_id].y; |
---|
| 2089 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
---|
[258] | 2090 | |
---|
| 2091 | #if BOOT_DEBUG_PERI |
---|
[329] | 2092 | _puts("\n[BOOT DEBUG] Peripherals initialisation in cluster["); |
---|
[263] | 2093 | _putd( x ); |
---|
| 2094 | _puts(","); |
---|
| 2095 | _putd( y ); |
---|
[329] | 2096 | _puts("]\n"); |
---|
[258] | 2097 | #endif |
---|
| 2098 | |
---|
[263] | 2099 | // loop on peripherals |
---|
[258] | 2100 | for (periph_id = cluster[cluster_id].periph_offset; |
---|
| 2101 | periph_id < cluster[cluster_id].periph_offset + |
---|
| 2102 | cluster[cluster_id].periphs; periph_id++) |
---|
| 2103 | { |
---|
| 2104 | unsigned int type = periph[periph_id].type; |
---|
[347] | 2105 | unsigned int subtype = periph[periph_id].subtype; |
---|
[258] | 2106 | unsigned int channels = periph[periph_id].channels; |
---|
| 2107 | |
---|
| 2108 | switch (type) |
---|
| 2109 | { |
---|
| 2110 | case PERIPH_TYPE_IOC: // vci_block_device component |
---|
| 2111 | { |
---|
[347] | 2112 | if ( subtype == PERIPH_SUBTYPE_BDV ) |
---|
[289] | 2113 | { |
---|
[460] | 2114 | _bdv_init(); |
---|
[347] | 2115 | } |
---|
[460] | 2116 | else if ( subtype == PERIPH_SUBTYPE_HBA ) |
---|
[347] | 2117 | { |
---|
[460] | 2118 | for (channel_id = 0; channel_id < channels; channel_id++) |
---|
| 2119 | _hba_init( channel_id ); |
---|
[347] | 2120 | } |
---|
[460] | 2121 | else if ( subtype == PERIPH_SUBTYPE_SPI ) |
---|
[347] | 2122 | { |
---|
[460] | 2123 | //TODO |
---|
[347] | 2124 | } |
---|
[258] | 2125 | break; |
---|
| 2126 | } |
---|
[460] | 2127 | case PERIPH_TYPE_TTY: // vci_multi_tty component |
---|
[263] | 2128 | { |
---|
| 2129 | for (channel_id = 0; channel_id < channels; channel_id++) |
---|
| 2130 | { |
---|
[460] | 2131 | _tty_init( channel_id ); |
---|
[263] | 2132 | } |
---|
| 2133 | break; |
---|
| 2134 | } |
---|
[258] | 2135 | case PERIPH_TYPE_NIC: // vci_multi_nic component |
---|
| 2136 | { |
---|
[460] | 2137 | _nic_global_init( 1, // broadcast accepted |
---|
| 2138 | 1, // bypass activated |
---|
| 2139 | 0, // tdm non activated |
---|
| 2140 | 0 ); // tdm period |
---|
[258] | 2141 | break; |
---|
| 2142 | } |
---|
[299] | 2143 | case PERIPH_TYPE_IOB: // vci_io_bridge component |
---|
[258] | 2144 | { |
---|
[299] | 2145 | if (GIET_USE_IOMMU) |
---|
[258] | 2146 | { |
---|
| 2147 | // TODO |
---|
| 2148 | // get the iommu page table physical address |
---|
| 2149 | // set IOMMU page table address |
---|
| 2150 | // pseg_base[IOB_IOMMU_PTPR] = ptab_pbase; |
---|
| 2151 | // activate IOMMU |
---|
| 2152 | // pseg_base[IOB_IOMMU_ACTIVE] = 1; |
---|
| 2153 | } |
---|
| 2154 | break; |
---|
| 2155 | } |
---|
[295] | 2156 | case PERIPH_TYPE_PIC: // vci_iopic component |
---|
| 2157 | { |
---|
[309] | 2158 | // scan all IRQs defined in mapping for PIC component, |
---|
[295] | 2159 | // and initialises addresses for WTI IRQs |
---|
| 2160 | for ( channel_id = periph[periph_id].irq_offset ; |
---|
| 2161 | channel_id < periph[periph_id].irq_offset + periph[periph_id].irqs ; |
---|
| 2162 | channel_id++ ) |
---|
| 2163 | { |
---|
[321] | 2164 | unsigned int hwi_id = irq[channel_id].srcid; // HWI index in PIC |
---|
| 2165 | unsigned int wti_id = irq[channel_id].dest_id; // WTI index in XCU |
---|
| 2166 | unsigned int cluster_xy = irq[channel_id].dest_xy; // XCU coordinates |
---|
[295] | 2167 | unsigned int vaddr; |
---|
| 2168 | |
---|
| 2169 | _xcu_get_wti_address( wti_id, &vaddr ); |
---|
[412] | 2170 | _pic_init( hwi_id, vaddr, cluster_xy ); |
---|
[295] | 2171 | |
---|
| 2172 | #if BOOT_DEBUG_PERI |
---|
[412] | 2173 | unsigned int address = _pic_get_register( channel_id, IOPIC_ADDRESS ); |
---|
| 2174 | unsigned int extend = _pic_get_register( channel_id, IOPIC_EXTEND ); |
---|
[295] | 2175 | _puts(" hwi_index = "); |
---|
| 2176 | _putd( hwi_id ); |
---|
| 2177 | _puts(" / wti_index = "); |
---|
| 2178 | _putd( wti_id ); |
---|
| 2179 | _puts(" / vaddr = "); |
---|
| 2180 | _putx( vaddr ); |
---|
| 2181 | _puts(" in cluster["); |
---|
[321] | 2182 | _putd( cluster_xy >> Y_WIDTH ); |
---|
[295] | 2183 | _puts(","); |
---|
[321] | 2184 | _putd( cluster_xy & ((1<<Y_WIDTH)-1) ); |
---|
[412] | 2185 | _puts("] / checked_xcu_paddr = "); |
---|
| 2186 | _putl( (paddr_t)address + (((paddr_t)extend)<<32) ); |
---|
| 2187 | _puts("\n"); |
---|
[295] | 2188 | #endif |
---|
| 2189 | } |
---|
| 2190 | break; |
---|
| 2191 | } |
---|
[258] | 2192 | } // end switch periph type |
---|
| 2193 | } // end for periphs |
---|
| 2194 | |
---|
| 2195 | #if BOOT_DEBUG_PERI |
---|
[329] | 2196 | _puts("\n[BOOT DEBUG] Coprocessors initialisation in cluster["); |
---|
[263] | 2197 | _putd( x ); |
---|
| 2198 | _puts(","); |
---|
| 2199 | _putd( y ); |
---|
[329] | 2200 | _puts("]\n"); |
---|
[258] | 2201 | #endif |
---|
| 2202 | |
---|
[263] | 2203 | // loop on coprocessors |
---|
[258] | 2204 | for ( coproc_id = cluster[cluster_id].coproc_offset; |
---|
| 2205 | coproc_id < cluster[cluster_id].coproc_offset + |
---|
| 2206 | cluster[cluster_id].coprocs; coproc_id++ ) |
---|
| 2207 | { |
---|
| 2208 | |
---|
| 2209 | #if BOOT_DEBUG_PERI |
---|
| 2210 | _puts("- coprocessor name : "); |
---|
| 2211 | _puts(coproc[coproc_id].name); |
---|
| 2212 | _puts(" / nb ports = "); |
---|
| 2213 | _putd((unsigned int) coproc[coproc_id].ports); |
---|
| 2214 | _puts("\n"); |
---|
| 2215 | #endif |
---|
| 2216 | // loop on the coprocessor ports |
---|
| 2217 | for ( cp_port_id = coproc[coproc_id].port_offset; |
---|
| 2218 | cp_port_id < coproc[coproc_id].port_offset + coproc[coproc_id].ports; |
---|
| 2219 | cp_port_id++ ) |
---|
| 2220 | { |
---|
[412] | 2221 | // get global index of associted vobj |
---|
[321] | 2222 | unsigned int vobj_id = cp_port[cp_port_id].mwmr_vobj_id; |
---|
[258] | 2223 | |
---|
[412] | 2224 | // get MWMR channel base address |
---|
| 2225 | page_table_t* ptab = (page_table_t*)_ptabs_vaddr[0][x][y]; |
---|
| 2226 | unsigned int vbase = vobj[vobj_id].vbase; |
---|
| 2227 | unsigned int ppn; |
---|
| 2228 | unsigned int flags; |
---|
| 2229 | paddr_t pbase; |
---|
[258] | 2230 | |
---|
[412] | 2231 | _v2p_translate( ptab, |
---|
| 2232 | vbase>>12 , |
---|
| 2233 | &ppn, |
---|
| 2234 | &flags ); |
---|
| 2235 | |
---|
| 2236 | pbase = ((paddr_t)ppn)<<12; |
---|
| 2237 | |
---|
| 2238 | // initialise cp_port |
---|
[263] | 2239 | _mwr_hw_init( cluster_xy, |
---|
| 2240 | cp_port_id, |
---|
| 2241 | cp_port[cp_port_id].direction, |
---|
[412] | 2242 | pbase ); |
---|
[258] | 2243 | #if BOOT_DEBUG_PERI |
---|
| 2244 | _puts(" port direction: "); |
---|
| 2245 | _putd( (unsigned int)cp_port[cp_port_id].direction ); |
---|
| 2246 | _puts(" / mwmr_channel_pbase = "); |
---|
[412] | 2247 | _putl( pbase ); |
---|
[258] | 2248 | _puts(" / name = "); |
---|
| 2249 | _puts(vobj[vobj_id].name); |
---|
| 2250 | _puts("\n"); |
---|
| 2251 | #endif |
---|
| 2252 | } // end for cp_ports |
---|
| 2253 | } // end for coprocs |
---|
| 2254 | } // end for clusters |
---|
| 2255 | } // end boot_peripherals_init() |
---|
| 2256 | |
---|
| 2257 | ///////////////////////////////////////////////////////////////////////// |
---|
[412] | 2258 | // This function initialises the physical memory allocators in each |
---|
| 2259 | // cluster containing a RAM pseg. |
---|
[490] | 2260 | // it is handled by the processor[x][y][0] |
---|
[412] | 2261 | ///////////////////////////////////////////////////////////////////////// |
---|
| 2262 | void boot_pmem_init() |
---|
| 2263 | { |
---|
| 2264 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
| 2265 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 2266 | mapping_pseg_t* pseg = _get_pseg_base(header); |
---|
| 2267 | |
---|
| 2268 | unsigned int cluster_id; |
---|
| 2269 | unsigned int pseg_id; |
---|
[490] | 2270 | unsigned int procid = _get_procid(); |
---|
| 2271 | unsigned int x_cluster = (procid >> (Y_WIDTH + P_WIDTH)) & ((1<<X_WIDTH)-1); |
---|
| 2272 | unsigned int y_cluster = (procid >> P_WIDTH) & ((1<<Y_WIDTH)-1); |
---|
| 2273 | unsigned int lpid = procid & ((1<<P_WIDTH)-1); |
---|
| 2274 | if(lpid) |
---|
| 2275 | { |
---|
| 2276 | _puts("[BOOT ERROR] boot_pmem_init() : error local processor id\n"); |
---|
| 2277 | _exit(); |
---|
| 2278 | } // scan all clusters |
---|
[412] | 2279 | |
---|
[490] | 2280 | cluster_id = x_cluster * Y_SIZE + y_cluster; |
---|
| 2281 | // scan the psegs in cluster to find first pseg of type RAM |
---|
| 2282 | unsigned int pseg_min = cluster[cluster_id].pseg_offset; |
---|
| 2283 | unsigned int pseg_max = pseg_min + cluster[cluster_id].psegs; |
---|
| 2284 | for ( pseg_id = pseg_min ; pseg_id < pseg_max ; pseg_id++ ) |
---|
[412] | 2285 | { |
---|
[490] | 2286 | if ( pseg[pseg_id].type == PSEG_TYPE_RAM ) |
---|
[412] | 2287 | { |
---|
[490] | 2288 | unsigned int x = cluster[cluster_id].x; |
---|
| 2289 | unsigned int y = cluster[cluster_id].y; |
---|
| 2290 | if(x != x_cluster || y != y_cluster) |
---|
[412] | 2291 | { |
---|
[490] | 2292 | _puts("[BOOT ERROR] boot_pmem_init() : error cluster id \n"); |
---|
| 2293 | _exit(); |
---|
| 2294 | } |
---|
| 2295 | unsigned int base = (unsigned int)pseg[pseg_id].base; |
---|
| 2296 | unsigned int size = (unsigned int)pseg[pseg_id].length; |
---|
| 2297 | _pmem_alloc_init( x, y, base, size ); |
---|
[412] | 2298 | |
---|
| 2299 | #if BOOT_DEBUG_PT |
---|
[490] | 2300 | _get_lock(&lock_tty); |
---|
[412] | 2301 | _puts("\n[BOOT DEBUG] pmem allocator initialised in cluster["); |
---|
| 2302 | _putd( x ); |
---|
| 2303 | _puts(","); |
---|
| 2304 | _putd( y ); |
---|
| 2305 | _puts("] base = "); |
---|
| 2306 | _putx( base ); |
---|
| 2307 | _puts(" / size = "); |
---|
| 2308 | _putx( size ); |
---|
| 2309 | _puts("\n"); |
---|
[490] | 2310 | _release_lock(&lock_tty); |
---|
[412] | 2311 | #endif |
---|
[490] | 2312 | break; |
---|
[412] | 2313 | } |
---|
| 2314 | } |
---|
| 2315 | } // end boot_pmem_init() |
---|
| 2316 | |
---|
| 2317 | ///////////////////////////////////////////////////////////////////////// |
---|
[258] | 2318 | // This function is the entry point of the boot code for all processors. |
---|
| 2319 | // Most of this code is executed by Processor 0 only. |
---|
| 2320 | ///////////////////////////////////////////////////////////////////////// |
---|
[347] | 2321 | void boot_init() |
---|
[258] | 2322 | { |
---|
[321] | 2323 | mapping_header_t* header = (mapping_header_t *)SEG_BOOT_MAPPING_BASE; |
---|
[295] | 2324 | mapping_cluster_t* cluster = _get_cluster_base(header); |
---|
| 2325 | unsigned int gpid = _get_procid(); |
---|
[490] | 2326 | unsigned int clusterid, p; |
---|
| 2327 | |
---|
[263] | 2328 | if ( gpid == 0 ) // only Processor 0 does it |
---|
[258] | 2329 | { |
---|
| 2330 | _puts("\n[BOOT] boot_init start at cycle "); |
---|
| 2331 | _putd(_get_proctime()); |
---|
| 2332 | _puts("\n"); |
---|
| 2333 | |
---|
[460] | 2334 | // initialises the FAT |
---|
| 2335 | _fat_init( IOC_BOOT_MODE ); |
---|
| 2336 | |
---|
| 2337 | _puts("\n[BOOT] Fat initialised at cycle "); |
---|
| 2338 | _putd(_get_proctime()); |
---|
| 2339 | _puts("\n"); |
---|
[347] | 2340 | // Load the map.bin file into memory and check it |
---|
[258] | 2341 | boot_mapping_init(); |
---|
| 2342 | |
---|
[295] | 2343 | _puts("\n[BOOT] Mapping \""); |
---|
[258] | 2344 | _puts( header->name ); |
---|
[295] | 2345 | _puts("\" loaded at cycle "); |
---|
[258] | 2346 | _putd(_get_proctime()); |
---|
| 2347 | _puts("\n"); |
---|
| 2348 | |
---|
[490] | 2349 | _barrier_init(&barrier_boot, X_SIZE*Y_SIZE); |
---|
| 2350 | |
---|
| 2351 | for ( clusterid = 1 ; clusterid < X_SIZE*Y_SIZE ; clusterid++ ) |
---|
| 2352 | { |
---|
| 2353 | unsigned int x = cluster[clusterid].x; |
---|
| 2354 | unsigned int y = cluster[clusterid].y; |
---|
| 2355 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
---|
| 2356 | |
---|
| 2357 | _xcu_send_wti_paddr( cluster_xy, 0, (unsigned int)boot_entry ); |
---|
| 2358 | } |
---|
| 2359 | } |
---|
| 2360 | //Parallel phase to construct the ptab by each processor[x][y][0] |
---|
| 2361 | if( (gpid & ((1 << P_WIDTH) -1)) == 0) |
---|
| 2362 | { |
---|
[412] | 2363 | // Initializes the physical memory allocators |
---|
| 2364 | boot_pmem_init(); |
---|
[490] | 2365 | // Build ge tables |
---|
| 2366 | boot_ptabs_init(); |
---|
| 2367 | //wait for all processors finished the work |
---|
| 2368 | _barrier_wait(&barrier_boot); |
---|
[412] | 2369 | |
---|
[490] | 2370 | if( gpid ) while( boot_init_ok == 0); |
---|
| 2371 | } |
---|
[412] | 2372 | |
---|
[490] | 2373 | if ( gpid == 0 ) // only Processor 0 does it |
---|
| 2374 | { |
---|
| 2375 | _puts("\n[BOOT] Physical memory allocators and Page table initialized at cycle "); |
---|
[412] | 2376 | _putd(_get_proctime()); |
---|
| 2377 | _puts("\n"); |
---|
| 2378 | |
---|
[347] | 2379 | // Activate MMU for proc [0,0,0] |
---|
| 2380 | _set_mmu_ptpr( (unsigned int)(_ptabs_paddr[0][0][0]>>13) ); |
---|
[258] | 2381 | _set_mmu_mode( 0xF ); |
---|
| 2382 | |
---|
[263] | 2383 | _puts("\n[BOOT] Processor[0,0,0] : MMU activation at cycle "); |
---|
[258] | 2384 | _putd(_get_proctime()); |
---|
| 2385 | _puts("\n"); |
---|
| 2386 | |
---|
[347] | 2387 | // Initialise private vobjs in vspaces |
---|
[258] | 2388 | boot_vobjs_init(); |
---|
| 2389 | |
---|
| 2390 | _puts("\n[BOOT] Private vobjs initialised at cycle "); |
---|
| 2391 | _putd(_get_proctime()); |
---|
| 2392 | _puts("\n"); |
---|
[452] | 2393 | |
---|
[347] | 2394 | // Initialise schedulers |
---|
[258] | 2395 | boot_schedulers_init(); |
---|
| 2396 | |
---|
[295] | 2397 | _puts("\n[BOOT] Schedulers initialised at cycle "); |
---|
[258] | 2398 | _putd(_get_proctime()); |
---|
| 2399 | _puts("\n"); |
---|
| 2400 | |
---|
[347] | 2401 | // Set CP0_SCHED register for proc [0,0,0] |
---|
| 2402 | _set_sched( (unsigned int)_schedulers[0][0][0] ); |
---|
[258] | 2403 | |
---|
[347] | 2404 | // Initialise non replicated peripherals |
---|
[258] | 2405 | boot_peripherals_init(); |
---|
| 2406 | |
---|
[295] | 2407 | _puts("\n[BOOT] Non replicated peripherals initialised at cycle "); |
---|
[258] | 2408 | _putd(_get_proctime()); |
---|
| 2409 | _puts("\n"); |
---|
| 2410 | |
---|
| 2411 | // Loading all .elf files |
---|
| 2412 | boot_elf_load(); |
---|
| 2413 | |
---|
[490] | 2414 | // wake up the processors which has constructed the ptab before |
---|
| 2415 | boot_init_ok = 1; |
---|
[258] | 2416 | |
---|
[295] | 2417 | for ( clusterid = 0 ; clusterid < X_SIZE*Y_SIZE ; clusterid++ ) |
---|
[258] | 2418 | { |
---|
[295] | 2419 | unsigned int nprocs = cluster[clusterid].procs; |
---|
[347] | 2420 | unsigned int x = cluster[clusterid].x; |
---|
| 2421 | unsigned int y = cluster[clusterid].y; |
---|
| 2422 | unsigned int cluster_xy = (x<<Y_WIDTH) + y; |
---|
[295] | 2423 | |
---|
[490] | 2424 | for ( p = 1 ; p < nprocs; p++ ) |
---|
[258] | 2425 | { |
---|
[490] | 2426 | _xcu_send_wti( cluster_xy, p, (unsigned int)boot_entry ); |
---|
[258] | 2427 | } |
---|
| 2428 | } |
---|
| 2429 | } // end monoprocessor boot |
---|
| 2430 | |
---|
[356] | 2431 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 2432 | // Parallel execution starts actually here |
---|
| 2433 | /////////////////////////////////////////////////////////////////////////////// |
---|
| 2434 | |
---|
| 2435 | // all processor initialise the SCHED register |
---|
| 2436 | // from the _schedulers[x][y][lpid array] |
---|
[427] | 2437 | unsigned int cluster_xy = gpid >> P_WIDTH; |
---|
| 2438 | unsigned int lpid = gpid & ((1<<P_WIDTH)-1); |
---|
[347] | 2439 | unsigned int x = cluster_xy >> Y_WIDTH; |
---|
| 2440 | unsigned int y = cluster_xy & ((1<<Y_WIDTH)-1); |
---|
| 2441 | _set_sched( (unsigned int)_schedulers[x][y][lpid] ); |
---|
[258] | 2442 | |
---|
[347] | 2443 | // all processors (but Proc[0,0,0]) activate MMU |
---|
[263] | 2444 | if ( gpid != 0 ) |
---|
[258] | 2445 | { |
---|
[347] | 2446 | _set_mmu_ptpr( (unsigned int)(_ptabs_paddr[0][x][y]>>13) ); |
---|
[258] | 2447 | _set_mmu_mode( 0xF ); |
---|
| 2448 | } |
---|
| 2449 | |
---|
[427] | 2450 | // all processors reset BEV bit in the status register to use |
---|
| 2451 | // the GIET_VM exception handler instead of the PRELOADER exception handler |
---|
| 2452 | _set_sr( 0 ); |
---|
| 2453 | |
---|
[356] | 2454 | // all processors jump to kernel_init |
---|
| 2455 | // using the address defined in the giet_vsegs.ld file |
---|
[321] | 2456 | unsigned int kernel_entry = (unsigned int)&kernel_init_vbase; |
---|
[258] | 2457 | asm volatile( "jr %0" ::"r"(kernel_entry) ); |
---|
| 2458 | |
---|
| 2459 | } // end boot_init() |
---|
| 2460 | |
---|
| 2461 | |
---|
| 2462 | // Local Variables: |
---|
| 2463 | // tab-width: 4 |
---|
| 2464 | // c-basic-offset: 4 |
---|
| 2465 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
---|
| 2466 | // indent-tabs-mode: nil |
---|
| 2467 | // End: |
---|
| 2468 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 2469 | |
---|