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Diffstat (limited to 'include/asm-blackfin/trace.h')
-rw-r--r--include/asm-blackfin/trace.h35
1 files changed, 20 insertions, 15 deletions
diff --git a/include/asm-blackfin/trace.h b/include/asm-blackfin/trace.h
index 6313aace9d5..ef18afbc210 100644
--- a/include/asm-blackfin/trace.h
+++ b/include/asm-blackfin/trace.h
@@ -46,42 +46,47 @@ extern unsigned long software_trace_buff[];
#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
-#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 = BFIN_TRACE_ON; \
- [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_start(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_START_HWTRACE(preg, dreg) trace_buffer_start(preg, dreg)
-# define DEBUG_STOP_HWTRACE(preg, dreg) trace_buffer_stop(preg, dreg)
-
+# 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_START_HWTRACE(preg, dreg)
-# define DEBUG_STOP_HWTRACE(preg, dreg)
+# define DEBUG_HWTRACE_SAVE(preg, dreg)
+# define DEBUG_HWTRACE_RESTORE(preg, dreg)
#endif
#endif /* __ASSEMBLY__ */