diff options
Diffstat (limited to 'include/asm-blackfin/trace.h')
| -rw-r--r-- | include/asm-blackfin/trace.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/asm-blackfin/trace.h b/include/asm-blackfin/trace.h new file mode 100644 index 000000000000..9c2474c9a589 --- /dev/null +++ b/include/asm-blackfin/trace.h @@ -0,0 +1,52 @@ +/* + * Common header file for blackfin family of processors. + * + */ + +#ifndef _BLACKFIN_TRACE_ +#define _BLACKFIN_TRACE_ + +#ifndef __ASSEMBLY__ +/* Trace Macros for C files */ + +#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 +/* Trace Macros for Assembly files */ + +#define TRACE_BUFFER_START(preg, dreg) trace_buffer_start(preg, dreg) +#define TRACE_BUFFER_STOP(preg, dreg) trace_buffer_stop(preg, dreg) + +#define trace_buffer_stop(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = 0x1; \ + [preg] = dreg; + +#define trace_buffer_start(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = 0x13; \ + [preg] = dreg; + +#ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE +# define DEBUG_START_HWTRACE(preg, dreg) trace_buffer_start(preg, dreg) +# define DEBUG_STOP_HWTRACE(preg, dreg) trace_buffer_stop(preg, dreg) + +#else +# define DEBUG_START_HWTRACE(preg, dreg) +# define DEBUG_STOP_HWTRACE(preg, dreg) +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* _BLACKFIN_TRACE_ */ |