Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (24 commits)
  [Blackfin] arch: import defines for BF547 -- it is just like the BF548, but no CAN
  [Blackfin] arch: fix build fails only include header files when enabled
  [Blackfin] arch: declare default INSTALL_PATH for Blackfin ports
  [Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support
  [Blackfin] arch: Enable UART2 and UART3 for bf548
  [Blackfin] arch: Enable NET2272 on BF561-EZkit - remove request_mem_region
  [Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show complete info
  [Blackfin] arch: remove duplicated definitions of the line discipline numbers N_* in asm-blackfin/termios.h
  [Blackfin] arch: fix building with mtd uclinux by putting the mtd_phys option into the function it actually gets used in
  [Blackfin] arch: simpler header and update dates
  [Blackfin] arch: move the init sections to the end of memory
  [Blackfin] arch: change the trace buffer control start/stop logic in the exception handlers
  [Blackfin] arch: fix typo in printk message
  [Blackfin] arch: this is an ezkit, not a stamp, so fixup the init function name
  [Blackfin] arch: add slightly better help text for CPLB_INFO
  [Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
  [Blackfin] arch: Fix header file information
  [Blackfin] arch: Add Support for ISP1362
  [Blackfin] arch: add support for cmdline partitioning to the BF533-STAMP flash map driver and enable it as a module by default
  [Blackfin] arch: hook up set_irq_wake in Blackfin's irq code
  ...

1 files changed, 20 insertions, 15 deletions

diff --git a/include/asm-blackfin/trace.h b/include/asm-blackfin/trace.h
index 6313aac..ef18afb 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__ */