projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 669b792c RG |
1 | /* |
| 2 | * Common header file for blackfin family of processors. | |
| 3 | * | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef _BLACKFIN_TRACE_ | |
| 7 | #define _BLACKFIN_TRACE_ | |
| 8 | ||
| 518039bc RG |
9 | /* Normally, we use ON, but you can't turn on software expansion until |
| 10 | * interrupts subsystem is ready | |
| 11 | */ | |
| 12 | ||
| 13 | #define BFIN_TRACE_INIT ((CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION << 4) | 0x03) | |
| 14 | #ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND | |
| 15 | #define BFIN_TRACE_ON (BFIN_TRACE_INIT | (CONFIG_DEBUG_BFIN_HWTRACE_EXPAND << 2)) | |
| 16 | #else | |
| 17 | #define BFIN_TRACE_ON (BFIN_TRACE_INIT) | |
| 18 | #endif | |
| 19 | ||
| 669b792c | 20 | #ifndef __ASSEMBLY__ |
| 518039bc RG |
21 | extern unsigned long trace_buff_offset; |
| 22 | extern unsigned long software_trace_buff[]; | |
| 23 | ||
| 669b792c RG |
24 | /* Trace Macros for C files */ |
| 25 | ||
| 518039bc RG |
26 | #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON |
| 27 | ||
| 669b792c | 28 | #define trace_buffer_save(x) \ |
| 518039bc RG |
29 | do { \ |
| 30 | (x) = bfin_read_TBUFCTL(); \ | |
| 31 | bfin_write_TBUFCTL((x) & ~TBUFEN); \ | |
| 32 | } while (0) | |
| 669b792c RG |
33 | |
| 34 | #define trace_buffer_restore(x) \ | |
| 518039bc RG |
35 | do { \ |
| 36 | bfin_write_TBUFCTL((x)); \ | |
| 37 | } while (0) | |
| 38 | #else /* DEBUG_BFIN_HWTRACE_ON */ | |
| 39 | ||
| 40 | #define trace_buffer_save(x) | |
| 41 | #define trace_buffer_restore(x) | |
| 42 | #endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ | |
| 669b792c RG |
43 | |
| 44 | #else | |
| 45 | /* Trace Macros for Assembly files */ | |
| 46 | ||
| 518039bc RG |
47 | #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON |
| 48 | ||
| 669b792c RG |
49 | #define trace_buffer_stop(preg, dreg) \ |
| 50 | preg.L = LO(TBUFCTL); \ | |
| 51 | preg.H = HI(TBUFCTL); \ | |
| 52 | dreg = 0x1; \ | |
| 53 | [preg] = dreg; | |
| 54 | ||
| 518039bc RG |
55 | #define trace_buffer_init(preg, dreg) \ |
| 56 | preg.L = LO(TBUFCTL); \ | |
| 57 | preg.H = HI(TBUFCTL); \ | |
| 58 | dreg = BFIN_TRACE_INIT; \ | |
| 669b792c RG |
59 | [preg] = dreg; |
| 60 | ||
| 80f31c8a MF |
61 | #define trace_buffer_save(preg, dreg) \ |
| 62 | preg.L = LO(TBUFCTL); \ | |
| 63 | preg.H = HI(TBUFCTL); \ | |
| 64 | dreg = [preg]; \ | |
| 2a0c4fdb | 65 | [--sp] = dreg; \ |
| 80f31c8a MF |
66 | dreg = 0x1; \ |
| 67 | [preg] = dreg; | |
| 68 | ||
| 69 | #define trace_buffer_restore(preg, dreg) \ | |
| 70 | preg.L = LO(TBUFCTL); \ | |
| 71 | preg.H = HI(TBUFCTL); \ | |
| 2a0c4fdb | 72 | dreg = [sp++]; \ |
| 80f31c8a MF |
73 | [preg] = dreg; |
| 74 | ||
| 518039bc RG |
75 | #else /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ |
| 76 | ||
| 77 | #define trace_buffer_stop(preg, dreg) | |
| 518039bc | 78 | #define trace_buffer_init(preg, dreg) |
| 80f31c8a MF |
79 | #define trace_buffer_save(preg, dreg) |
| 80 | #define trace_buffer_restore(preg, dreg) | |
| 518039bc RG |
81 | |
| 82 | #endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ | |
| 83 | ||
| 669b792c | 84 | #ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE |
| 80f31c8a MF |
85 | # define DEBUG_HWTRACE_SAVE(preg, dreg) trace_buffer_save(preg, dreg) |
| 86 | # define DEBUG_HWTRACE_RESTORE(preg, dreg) trace_buffer_restore(preg, dreg) | |
| 669b792c | 87 | #else |
| 80f31c8a MF |
88 | # define DEBUG_HWTRACE_SAVE(preg, dreg) |
| 89 | # define DEBUG_HWTRACE_RESTORE(preg, dreg) | |
| 669b792c RG |
90 | #endif |
| 91 | ||
| 92 | #endif /* __ASSEMBLY__ */ | |
| 93 | ||
| 94 | #endif /* _BLACKFIN_TRACE_ */ |