[SPARC32]: Add irqflags.h to sparc32 and use it from generic code.

Added asm-sparc/irqflags.h and moved irq related code from system.h to it.
Renamed local_irq functions to raw_local_irq in irq.c.
Modified system.h to include linux/irqflags.h which includes asm/irqflags.h.
Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug.

This is the first step in adding IRQ-flags state tracing as outlined in
Documentation/irqflags-tracing.txt.  These changes should be harmless
because they just move things around and rename them.

The next step is making the lowlevel entry code modifications which
to be honest are beyond my capabilities at this point.

Boot tested on an ss20 running an SMP kernel.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 20 deletions

diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h
index d1a2572e3f5..8c259de0261 100644
--- a/include/asm-sparc/system.h
+++ b/include/asm-sparc/system.h
@@ -15,6 +15,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/irqflags.h>
+
 /*
  * Sparc (general) CPU types
  */
@@ -164,26 +166,6 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
 	  "o0", "o1", "o2", "o3",                   "o7");	\
 	} while(0)
 
-/*
- * Changing the IRQ level on the Sparc.
- */
-extern void local_irq_restore(unsigned long);
-extern unsigned long __local_irq_save(void);
-extern void local_irq_enable(void);
-
-static inline unsigned long getipl(void)
-{
-	unsigned long retval;
-
-	__asm__ __volatile__("rd	%%psr, %0" : "=r" (retval));
-	return retval;
-}
-
-#define local_save_flags(flags)	((flags) = getipl())
-#define local_irq_save(flags)	((flags) = __local_irq_save())
-#define local_irq_disable()	((void) __local_irq_save())
-#define irqs_disabled()		((getipl() & PSR_PIL) != 0)
-
 /* XXX Change this if we ever use a PSO mode kernel. */
 #define mb()	__asm__ __volatile__ ("" : : : "memory")
 #define rmb()	mb()