[PATCH] powerpc: G4+ oprofile support

This patch adds oprofile support for the 7450 and all its multitudinous
derivatives.

* Added 7450 (and derivatives) support for oprofile
* Changed e500 cputable to have oprofile model and cpu_type fields
* Added support for classic 32-bit performance monitor interrupt
* Cleaned up common powerpc oprofile code to be as common as possible
* Cleaned up oprofile_impl.h to reflect 32 bit classic code
* Added 32-bit MMCRx bitfield definitions and SPR numbers

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/head_32.S

@@ -466,16 +466,11 @@ SystemCall:
  * by executing an altivec instruction.
  */
 	. = 0xf00
-	b	Trap_0f
+	b	PerformanceMonitor
 
 	. = 0xf20
 	b	AltiVecUnavailable
 
-Trap_0f:
-	EXCEPTION_PROLOG
-	addi	r3,r1,STACK_FRAME_OVERHEAD
-	EXC_XFER_EE(0xf00, unknown_exception)
-
 /*
  * Handle TLB miss for instruction on 603/603e.
  * Note: we get an alternate set of r0 - r3 to use automatically.
@@ -719,6 +714,11 @@ AltiVecUnavailable:
 #endif /* CONFIG_ALTIVEC */
 	EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception)
 
+PerformanceMonitor:
+	EXCEPTION_PROLOG
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	EXC_XFER_STD(0xf00, performance_monitor_exception)
+
 #ifdef CONFIG_ALTIVEC
 /* Note that the AltiVec support is closely modeled after the FP
  * support.  Changes to one are likely to be applicable to the