Commit | Line | Data |
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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_START(preg, dreg) trace_buffer_start(preg, dreg) |
50 | #define TRACE_BUFFER_STOP(preg, dreg) trace_buffer_stop(preg, dreg) | |
51 | ||
52 | #define trace_buffer_stop(preg, dreg) \ | |
53 | preg.L = LO(TBUFCTL); \ | |
54 | preg.H = HI(TBUFCTL); \ | |
55 | dreg = 0x1; \ | |
56 | [preg] = dreg; | |
57 | ||
518039bc | 58 | #define trace_buffer_start(preg, dreg) \ |
669b792c RG |
59 | preg.L = LO(TBUFCTL); \ |
60 | preg.H = HI(TBUFCTL); \ | |
518039bc RG |
61 | dreg = BFIN_TRACE_ON; \ |
62 | [preg] = dreg; | |
63 | ||
64 | #define trace_buffer_init(preg, dreg) \ | |
65 | preg.L = LO(TBUFCTL); \ | |
66 | preg.H = HI(TBUFCTL); \ | |
67 | dreg = BFIN_TRACE_INIT; \ | |
669b792c RG |
68 | [preg] = dreg; |
69 | ||
518039bc RG |
70 | #else /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ |
71 | ||
72 | #define trace_buffer_stop(preg, dreg) | |
73 | #define trace_buffer_start(preg, dreg) | |
74 | #define trace_buffer_init(preg, dreg) | |
75 | ||
76 | #endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ | |
77 | ||
669b792c RG |
78 | #ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE |
79 | # define DEBUG_START_HWTRACE(preg, dreg) trace_buffer_start(preg, dreg) | |
80 | # define DEBUG_STOP_HWTRACE(preg, dreg) trace_buffer_stop(preg, dreg) | |
81 | ||
82 | #else | |
83 | # define DEBUG_START_HWTRACE(preg, dreg) | |
84 | # define DEBUG_STOP_HWTRACE(preg, dreg) | |
85 | #endif | |
86 | ||
87 | #endif /* __ASSEMBLY__ */ | |
88 | ||
89 | #endif /* _BLACKFIN_TRACE_ */ |