Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /* * header file for hardware trace functions * * Copyright 2007-2008 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef _BLACKFIN_TRACE_ #define _BLACKFIN_TRACE_ /* Normally, we use ON, but you can't turn on software expansion until * interrupts subsystem is ready */ #define BFIN_TRACE_INIT ((CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION << 4) | 0x03) #ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND #define BFIN_TRACE_ON (BFIN_TRACE_INIT | (CONFIG_DEBUG_BFIN_HWTRACE_EXPAND << 2)) #else #define BFIN_TRACE_ON (BFIN_TRACE_INIT) #endif #ifndef __ASSEMBLY__ extern unsigned long trace_buff_offset; extern unsigned long software_trace_buff[]; #if defined(CONFIG_DEBUG_VERBOSE) extern void decode_address(char *buf, unsigned long address); extern bool get_instruction(unsigned int *val, unsigned short *address); #else static inline void decode_address(char *buf, unsigned long address) { } static inline bool get_instruction(unsigned int *val, unsigned short *address) { return false; } #endif /* Trace Macros for C files */ #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON #define trace_buffer_init() bfin_write_TBUFCTL(BFIN_TRACE_INIT) #define trace_buffer_save(x) \ do { \ (x) = bfin_read_TBUFCTL(); \ bfin_write_TBUFCTL((x) & ~TBUFEN); \ } while (0) #define trace_buffer_restore(x) \ do { \ bfin_write_TBUFCTL((x)); \ } while (0) #else /* DEBUG_BFIN_HWTRACE_ON */ #define trace_buffer_save(x) #define trace_buffer_restore(x) #endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ #else /* Trace Macros for Assembly files */ #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON #define trace_buffer_stop(preg, dreg) \ preg.L = LO(TBUFCTL); \ preg.H = HI(TBUFCTL); \ dreg = 0x1; \ [preg] = dreg; #define trace_buffer_init(preg, dreg) \ preg.L = LO(TBUFCTL); \ preg.H = HI(TBUFCTL); \ dreg = BFIN_TRACE_INIT; \ [preg] = dreg; #define trace_buffer_save(preg, dreg) \ preg.L = LO(TBUFCTL); \ preg.H = HI(TBUFCTL); \ dreg = [preg]; \ [--sp] = dreg; \ dreg = 0x1; \ [preg] = dreg; #define trace_buffer_restore(preg, dreg) \ preg.L = LO(TBUFCTL); \ preg.H = HI(TBUFCTL); \ dreg = [sp++]; \ [preg] = dreg; #else /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ #define trace_buffer_stop(preg, dreg) #define trace_buffer_init(preg, dreg) #define trace_buffer_save(preg, dreg) #define trace_buffer_restore(preg, dreg) #endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ #ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE # define DEBUG_HWTRACE_SAVE(preg, dreg) trace_buffer_save(preg, dreg) # define DEBUG_HWTRACE_RESTORE(preg, dreg) trace_buffer_restore(preg, dreg) #else # define DEBUG_HWTRACE_SAVE(preg, dreg) # define DEBUG_HWTRACE_RESTORE(preg, dreg) #endif #endif /* __ASSEMBLY__ */ #endif /* _BLACKFIN_TRACE_ */ |