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_ */ |