[158] | 1 | /////////////////////////////////////////////////////////////////////////////////// |
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| 2 | // File : common.h |
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| 3 | // Date : 01/04/2012 |
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| 4 | // Author : alain greiner and joel porquet |
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| 5 | // Copyright (c) UPMC-LIP6 |
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| 6 | /////////////////////////////////////////////////////////////////////////////////// |
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| 7 | |
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| 8 | #ifndef _COMMON_H |
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| 9 | #define _COMMON_H |
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| 10 | |
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| 11 | #include <mapping_info.h> |
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| 12 | |
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| 13 | /////////////////////////////////////////////////////////////////////////////////// |
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| 14 | // For retrieving base addresses defined in seg.ld file. |
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| 15 | /////////////////////////////////////////////////////////////////////////////////// |
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| 16 | |
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| 17 | typedef struct _ld_symbol_s _ld_symbol_t; |
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| 18 | |
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[166] | 19 | extern _ld_symbol_t seg_iob_base; |
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[158] | 20 | extern _ld_symbol_t seg_icu_base; |
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| 21 | extern _ld_symbol_t seg_timer_base; |
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| 22 | extern _ld_symbol_t seg_tty_base; |
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| 23 | extern _ld_symbol_t seg_gcd_base; |
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| 24 | extern _ld_symbol_t seg_dma_base; |
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| 25 | extern _ld_symbol_t seg_fb_base; |
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| 26 | extern _ld_symbol_t seg_ioc_base; |
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[160] | 27 | extern _ld_symbol_t seg_mapping_base; |
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[158] | 28 | extern _ld_symbol_t seg_kernel_pt_base; |
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| 29 | |
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| 30 | /////////////////////////////////////////////////////////////////////////////////// |
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| 31 | // Prototypes of common functions |
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| 32 | /////////////////////////////////////////////////////////////////////////////////// |
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| 33 | |
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[189] | 34 | void _puts(char *string); |
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| 35 | void _putw(unsigned int val); |
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| 36 | void _putd(unsigned int val); |
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[158] | 37 | |
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[199] | 38 | unsigned int _strncmp( const char* s1, |
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| 39 | const char* s2, |
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| 40 | unsigned int n ); |
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[158] | 41 | |
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[199] | 42 | void _dcache_buf_invalidate( const void *buffer, |
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| 43 | unsigned int size ); |
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[158] | 44 | |
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[189] | 45 | void _dtlb_off(void); |
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| 46 | void _dtlb_on(void); |
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[158] | 47 | |
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[189] | 48 | void _it_mask(void); |
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| 49 | void _it_enable(void); |
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[165] | 50 | |
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[189] | 51 | unsigned int _get_epc(void); |
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| 52 | unsigned int _get_ptpr(void); |
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| 53 | unsigned int _get_bvar(void); |
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| 54 | unsigned int _get_cr(void); |
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| 55 | unsigned int _get_sched(void); |
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| 56 | |
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[199] | 57 | unsigned int _get_context_slot( unsigned int task_id, |
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| 58 | unsigned int slot_id ); |
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| 59 | |
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| 60 | void _set_context_slot( unsigned int task_id, |
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| 61 | unsigned int slot_id, |
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| 62 | unsigned int value ); |
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| 63 | |
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[189] | 64 | unsigned int _get_interrupt_vector_entry(unsigned int index); |
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[199] | 65 | |
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| 66 | unsigned int _get_current_task_id( void ); |
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| 67 | void _set_current_task_id( unsigned int value ); |
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| 68 | |
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[189] | 69 | unsigned int _get_tasks_number(void); |
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| 70 | |
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| 71 | |
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| 72 | void _get_lock(unsigned int* lock); |
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| 73 | void _release_lock(unsigned int* lock); |
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| 74 | |
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[158] | 75 | mapping_cluster_t* _get_cluster_base( mapping_header_t* header ); |
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| 76 | mapping_pseg_t* _get_pseg_base( mapping_header_t* header ); |
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| 77 | mapping_vspace_t* _get_vspace_base( mapping_header_t* header ); |
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| 78 | mapping_vseg_t* _get_vseg_base( mapping_header_t* header ); |
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[160] | 79 | mapping_vobj_t* _get_vobj_base( mapping_header_t* header ); |
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[158] | 80 | mapping_task_t* _get_task_base( mapping_header_t* header ); |
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| 81 | |
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| 82 | |
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| 83 | /////////////////////////////////////////////////////////////////////////////////// |
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| 84 | // memcpy() function |
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| 85 | // This function is likely not called directly by the GIET, |
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| 86 | // but GCC can automatically issue call to it during compilation, |
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| 87 | // so we must provide it. |
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| 88 | // Code taken from MutekH. |
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| 89 | /////////////////////////////////////////////////////////////////////////////////// |
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| 90 | static inline void *memcpy(void *_dst, const void *_src, unsigned int size) |
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| 91 | { |
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| 92 | unsigned int *dst = _dst; |
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| 93 | const unsigned int *src = _src; |
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| 94 | |
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| 95 | /* if source and destination buffer are word-aligned, |
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| 96 | * then copy word-by-word */ |
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| 97 | if (!((unsigned int)dst & 3) && !((unsigned int)src & 3)) |
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| 98 | while (size > 3) { |
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| 99 | *dst++ = *src++; |
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| 100 | size -= 4; |
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| 101 | } |
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| 102 | |
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| 103 | unsigned char *cdst = (unsigned char*)dst; |
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| 104 | unsigned char *csrc = (unsigned char*)src; |
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| 105 | |
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| 106 | /* byte-by-byte copy */ |
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| 107 | while (size--) { |
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| 108 | *cdst++ = *csrc++; |
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| 109 | } |
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| 110 | return _dst; |
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| 111 | } |
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| 112 | |
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| 113 | #endif |
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