powerpc: merge idle_power4.S and trapc.s

Use idle_power4.S from ppc64 as we are not going to support
32 bit power4 in the merged tree.

Merge ppc64 traps.c into powerpc traps.c:
	use ppc64 versions of exception routine names
		(as they don't have StudlyCaps)
	make all the versions if die() have the same
		prototype

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

10 files changed, 130 insertions, 130 deletions

diff --git a/arch/ppc/kernel/head.S b/arch/ppc/kernel/head.S
index 8cdac7385e7f..2c3a1d34e3c7 100644
--- a/arch/ppc/kernel/head.S
+++ b/arch/ppc/kernel/head.S
@@ -349,12 +349,12 @@ i##n:								\
 
 /* System reset */
 /* core99 pmac starts the seconary here by changing the vector, and
-   putting it back to what it was (UnknownException) when done.  */
+   putting it back to what it was (unknown_exception) when done.  */
 #if defined(CONFIG_GEMINI) && defined(CONFIG_SMP)
         . = 0x100
         b       __secondary_start_gemini
 #else
-        EXCEPTION(0x100, Reset, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
 #endif
 
 /* Machine check */
@@ -389,7 +389,7 @@ i##n:								\
         cmpwi   cr1,r4,0
         bne     cr1,1f
 #endif
-        EXC_XFER_STD(0x200, MachineCheckException)
+        EXC_XFER_STD(0x200, machine_check_exception)
 #ifdef CONFIG_PPC_CHRP
 1:      b       machine_check_in_rtas
 #endif
@@ -456,10 +456,10 @@ Alignment:
         mfspr   r5,SPRN_DSISR
         stw     r5,_DSISR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* Program check exception */
-        EXCEPTION(0x700, ProgramCheck, ProgramCheckException, EXC_XFER_STD)
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
 
 /* Floating-point unavailable */
         . = 0x800
@@ -472,8 +472,8 @@ FPUnavailable:
 /* Decrementer */
         EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
 
-        EXCEPTION(0xa00, Trap_0a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xb00, Trap_0b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
 
 /* System call */
         . = 0xc00
@@ -482,8 +482,8 @@ SystemCall:
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
 /* Single step - not used on 601 */
-        EXCEPTION(0xd00, SingleStep, SingleStepException, EXC_XFER_STD)
-        EXCEPTION(0xe00, Trap_0e, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
 
 /*
  * The Altivec unavailable trap is at 0x0f20.  Foo.
@@ -502,7 +502,7 @@ SystemCall:
 Trap_0f:
         EXCEPTION_PROLOG
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0xf00, UnknownException)
+        EXC_XFER_EE(0xf00, unknown_exception)
 
 /*
  * Handle TLB miss for instruction on 603/603e.
@@ -702,44 +702,44 @@ DataStoreTLBMiss:
         rfi
 
 #ifndef CONFIG_ALTIVEC
-#define AltivecAssistException  UnknownException
+#define altivec_assist_exception        unknown_exception
 #endif
 
-        EXCEPTION(0x1300, Trap_13, InstructionBreakpoint, EXC_XFER_EE)
+        EXCEPTION(0x1300, Trap_13, instruction_breakpoint_exception, EXC_XFER_EE)
         EXCEPTION(0x1400, SMI, SMIException, EXC_XFER_EE)
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
 #ifdef CONFIG_POWER4
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1700, Trap_17, AltivecAssistException, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, altivec_assist_exception, EXC_XFER_EE)
         EXCEPTION(0x1800, Trap_18, TAUException, EXC_XFER_STD)
 #else /* !CONFIG_POWER4 */
-        EXCEPTION(0x1600, Trap_16, AltivecAssistException, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, altivec_assist_exception, EXC_XFER_EE)
         EXCEPTION(0x1700, Trap_17, TAUException, EXC_XFER_STD)
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_POWER4 */
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1a00, Trap_1a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1b00, Trap_1b, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1c00, Trap_1c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1d00, Trap_1d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1e00, Trap_1e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1f00, Trap_1f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
         EXCEPTION(0x2000, RunMode, RunModeException, EXC_XFER_EE)
-        EXCEPTION(0x2100, Trap_21, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2200, Trap_22, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2300, Trap_23, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2400, Trap_24, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2500, Trap_25, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2600, Trap_26, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2700, Trap_27, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2800, Trap_28, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2900, Trap_29, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2a00, Trap_2a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2b00, Trap_2b, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2c00, Trap_2c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2d00, Trap_2d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2e00, Trap_2e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2f00, MOLTrampoline, UnknownException, EXC_XFER_EE_LITE)
+        EXCEPTION(0x2100, Trap_21, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2200, Trap_22, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2300, Trap_23, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2400, Trap_24, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2500, Trap_25, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2600, Trap_26, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2700, Trap_27, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2800, Trap_28, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2900, Trap_29, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2a00, Trap_2a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2b00, Trap_2b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2c00, Trap_2c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2d00, Trap_2d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2f00, MOLTrampoline, unknown_exception, EXC_XFER_EE_LITE)
 
         .globl mol_trampoline
         .set mol_trampoline, i0x2f00
@@ -751,7 +751,7 @@ AltiVecUnavailable:
 #ifdef CONFIG_ALTIVEC
         bne     load_up_altivec         /* if from user, just load it up */
 #endif /* CONFIG_ALTIVEC */
-        EXC_XFER_EE_LITE(0xf20, AltivecUnavailException)
+        EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception)
 
 #ifdef CONFIG_PPC64BRIDGE
 DataAccess:
@@ -767,12 +767,12 @@ DataSegment:
         addi    r3,r1,STACK_FRAME_OVERHEAD
         mfspr   r4,SPRN_DAR
         stw     r4,_DAR(r11)
-        EXC_XFER_STD(0x380, UnknownException)
+        EXC_XFER_STD(0x380, unknown_exception)
 
 InstructionSegment:
         EXCEPTION_PROLOG
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x480, UnknownException)
+        EXC_XFER_STD(0x480, unknown_exception)
 #endif /* CONFIG_PPC64BRIDGE */
 
 #ifdef CONFIG_ALTIVEC
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 599245b0407e..b1b9dc08abca 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -309,13 +309,13 @@ skpinv:	addi	r4,r4,1				/* Increment */
 
 interrupt_base:
         /* Critical Input Interrupt */
-        CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
 
         /* Machine Check Interrupt */
 #ifdef CONFIG_440A
-        MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #else
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #endif
 
         /* Data Storage Interrupt */
@@ -442,7 +442,7 @@ interrupt_base:
 #ifdef CONFIG_PPC_FPU
         FP_UNAVAILABLE_EXCEPTION
 #else
-        EXCEPTION(0x2010, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2010, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
 #endif
 
         /* System Call Interrupt */
@@ -451,21 +451,21 @@ interrupt_base:
         EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
         /* Auxillary Processor Unavailable Interrupt */
-        EXCEPTION(0x2020, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2020, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
         /* Decrementer Interrupt */
         DECREMENTER_EXCEPTION
 
         /* Fixed Internal Timer Interrupt */
         /* TODO: Add FIT support */
-        EXCEPTION(0x1010, FixedIntervalTimer, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1010, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
 
         /* Watchdog Timer Interrupt */
         /* TODO: Add watchdog support */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x1020, WatchdogTimer, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, UnknownException)
+        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, unknown_exception)
 #endif
 
         /* Data TLB Error Interrupt */
diff --git a/arch/ppc/kernel/head_4xx.S b/arch/ppc/kernel/head_4xx.S
index 8562b807b37c..5772ce97e24e 100644
--- a/arch/ppc/kernel/head_4xx.S
+++ b/arch/ppc/kernel/head_4xx.S
@@ -245,12 +245,12 @@ label:
 /*
  * 0x0100 - Critical Interrupt Exception
  */
-        CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, unknown_exception)
 
 /*
  * 0x0200 - Machine Check Exception
  */
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 
 /*
  * 0x0300 - Data Storage Exception
@@ -405,7 +405,7 @@ label:
         mfspr   r4,SPRN_DEAR            /* Grab the DEAR and save it */
         stw     r4,_DEAR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* 0x0700 - Program Exception */
         START_EXCEPTION(0x0700, ProgramCheck)
@@ -413,21 +413,21 @@ label:
         mfspr   r4,SPRN_ESR             /* Grab the ESR and save it */
         stw     r4,_ESR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x700, ProgramCheckException)
+        EXC_XFER_STD(0x700, program_check_exception)
 
-        EXCEPTION(0x0800, Trap_08, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0900, Trap_09, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0A00, Trap_0A, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0B00, Trap_0B, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0800, Trap_08, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0900, Trap_09, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0A00, Trap_0A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0B00, Trap_0B, unknown_exception, EXC_XFER_EE)
 
 /* 0x0C00 - System Call Exception */
         START_EXCEPTION(0x0C00, SystemCall)
         NORMAL_EXCEPTION_PROLOG
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
-        EXCEPTION(0x0D00, Trap_0D, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0E00, Trap_0E, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0F00, Trap_0F, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0F00, Trap_0F, unknown_exception, EXC_XFER_EE)
 
 /* 0x1000 - Programmable Interval Timer (PIT) Exception */
         START_EXCEPTION(0x1000, Decrementer)
@@ -444,14 +444,14 @@ label:
 
 /* 0x1010 - Fixed Interval Timer (FIT) Exception
 */
-        STND_EXCEPTION(0x1010,  FITException,           UnknownException)
+        STND_EXCEPTION(0x1010,  FITException,           unknown_exception)
 
 /* 0x1020 - Watchdog Timer (WDT) Exception
 */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x1020, WDTException, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x1020, WDTException, UnknownException)
+        CRITICAL_EXCEPTION(0x1020, WDTException, unknown_exception)
 #endif
 #endif
 
@@ -656,25 +656,25 @@ label:
         mfspr   r10, SPRN_SPRG0
         b       InstructionAccess
 
-        EXCEPTION(0x1300, Trap_13, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1400, Trap_14, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1300, Trap_13, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1400, Trap_14, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
 #ifdef CONFIG_IBM405_ERR51
         /* 405GP errata 51 */
         START_EXCEPTION(0x1700, Trap_17)
         b DTLBMiss
 #else
-        EXCEPTION(0x1700, Trap_17, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
 #endif
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1A00, Trap_1A, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1B00, Trap_1B, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1C00, Trap_1C, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1D00, Trap_1D, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1E00, Trap_1E, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1F00, Trap_1F, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1A00, Trap_1A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1B00, Trap_1B, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1C00, Trap_1C, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1D00, Trap_1D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1E00, Trap_1E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1F00, Trap_1F, unknown_exception, EXC_XFER_EE)
 
 /* Check for a single step debug exception while in an exception
  * handler before state has been saved.  This is to catch the case
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index cb1a3a54a026..de0978742221 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -203,7 +203,7 @@ i##n:								\
                           ret_from_except)
 
 /* System reset */
-        EXCEPTION(0x100, Reset, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
 
 /* Machine check */
         . = 0x200
@@ -214,7 +214,7 @@ MachineCheck:
         mfspr r5,SPRN_DSISR
         stw r5,_DSISR(r11)
         addi r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x200, MachineCheckException)
+        EXC_XFER_STD(0x200, machine_check_exception)
 
 /* Data access exception.
  * This is "never generated" by the MPC8xx.  We jump to it for other
@@ -252,20 +252,20 @@ Alignment:
         mfspr   r5,SPRN_DSISR
         stw     r5,_DSISR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* Program check exception */
-        EXCEPTION(0x700, ProgramCheck, ProgramCheckException, EXC_XFER_STD)
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
 
 /* No FPU on MPC8xx.  This exception is not supposed to happen.
 */
-        EXCEPTION(0x800, FPUnavailable, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x800, FPUnavailable, unknown_exception, EXC_XFER_STD)
 
 /* Decrementer */
         EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
 
-        EXCEPTION(0xa00, Trap_0a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xb00, Trap_0b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
 
 /* System call */
         . = 0xc00
@@ -274,9 +274,9 @@ SystemCall:
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
 /* Single step - not used on 601 */
-        EXCEPTION(0xd00, SingleStep, SingleStepException, EXC_XFER_STD)
-        EXCEPTION(0xe00, Trap_0e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xf00, Trap_0f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xf00, Trap_0f, unknown_exception, EXC_XFER_EE)
 
 /* On the MPC8xx, this is a software emulation interrupt.  It occurs
  * for all unimplemented and illegal instructions.
@@ -540,22 +540,22 @@ DataTLBError:
 #endif
         b       DataAccess
 
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1700, Trap_17, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1a00, Trap_1a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1b00, Trap_1b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
 
 /* On the MPC8xx, these next four traps are used for development
  * support of breakpoints and such.  Someday I will get around to
  * using them.
  */
-        EXCEPTION(0x1c00, Trap_1c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1d00, Trap_1d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1e00, Trap_1e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1f00, Trap_1f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
 
         . = 0x2000
 
diff --git a/arch/ppc/kernel/head_booke.h b/arch/ppc/kernel/head_booke.h
index 9342acf12e72..aeb349b47af3 100644
--- a/arch/ppc/kernel/head_booke.h
+++ b/arch/ppc/kernel/head_booke.h
@@ -335,7 +335,7 @@ label:
         mfspr   r4,SPRN_DEAR;           /* Grab the DEAR and save it */       \
         stw     r4,_DEAR(r11);                                                \
         addi    r3,r1,STACK_FRAME_OVERHEAD;                                   \
-        EXC_XFER_EE(0x0600, AlignmentException)
+        EXC_XFER_EE(0x0600, alignment_exception)
 
 #define PROGRAM_EXCEPTION                                                     \
         START_EXCEPTION(Program)                                              \
@@ -343,7 +343,7 @@ label:
         mfspr   r4,SPRN_ESR;            /* Grab the ESR and save it */        \
         stw     r4,_ESR(r11);                                                 \
         addi    r3,r1,STACK_FRAME_OVERHEAD;                                   \
-        EXC_XFER_STD(0x0700, ProgramCheckException)
+        EXC_XFER_STD(0x0700, program_check_exception)
 
 #define DECREMENTER_EXCEPTION                                                 \
         START_EXCEPTION(Decrementer)                                          \
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index eba5a5f8ff08..53949811efda 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -426,14 +426,14 @@ skpinv:	addi	r6,r6,1				/* Increment */
 
 interrupt_base:
         /* Critical Input Interrupt */
-        CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
 
         /* Machine Check Interrupt */
 #ifdef CONFIG_E200
         /* no RFMCI, MCSRRs on E200 */
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #else
-        MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #endif
 
         /* Data Storage Interrupt */
@@ -542,9 +542,9 @@ interrupt_base:
 #else
 #ifdef CONFIG_E200
         /* E200 treats 'normal' floating point instructions as FP Unavail exception */
-        EXCEPTION(0x0800, FloatingPointUnavailable, ProgramCheckException, EXC_XFER_EE)
+        EXCEPTION(0x0800, FloatingPointUnavailable, program_check_exception, EXC_XFER_EE)
 #else
-        EXCEPTION(0x0800, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0800, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
 #endif
 #endif
 
@@ -554,20 +554,20 @@ interrupt_base:
         EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
         /* Auxillary Processor Unavailable Interrupt */
-        EXCEPTION(0x2900, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2900, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
         /* Decrementer Interrupt */
         DECREMENTER_EXCEPTION
 
         /* Fixed Internal Timer Interrupt */
         /* TODO: Add FIT support */
-        EXCEPTION(0x3100, FixedIntervalTimer, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x3100, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
 
         /* Watchdog Timer Interrupt */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x3200, WatchdogTimer, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, UnknownException)
+        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, unknown_exception)
 #endif
 
         /* Data TLB Error Interrupt */
@@ -696,21 +696,21 @@ interrupt_base:
         addi    r3,r1,STACK_FRAME_OVERHEAD
         EXC_XFER_EE_LITE(0x2010, KernelSPE)
 #else
-        EXCEPTION(0x2020, SPEUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2020, SPEUnavailable, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_SPE */
 
         /* SPE Floating Point Data */
 #ifdef CONFIG_SPE
         EXCEPTION(0x2030, SPEFloatingPointData, SPEFloatingPointException, EXC_XFER_EE);
 #else
-        EXCEPTION(0x2040, SPEFloatingPointData, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2040, SPEFloatingPointData, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_SPE */
 
         /* SPE Floating Point Round */
-        EXCEPTION(0x2050, SPEFloatingPointRound, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2050, SPEFloatingPointRound, unknown_exception, EXC_XFER_EE)
 
         /* Performance Monitor */
-        EXCEPTION(0x2060, PerformanceMonitor, PerformanceMonitorException, EXC_XFER_STD)
+        EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
 
 
         /* Debug Interrupt */
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 1545621d44d2..7872c6c45732 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -53,10 +53,10 @@
 
 extern void transfer_to_handler(void);
 extern void do_IRQ(struct pt_regs *regs);
-extern void MachineCheckException(struct pt_regs *regs);
-extern void AlignmentException(struct pt_regs *regs);
-extern void ProgramCheckException(struct pt_regs *regs);
-extern void SingleStepException(struct pt_regs *regs);
+extern void machine_check_exception(struct pt_regs *regs);
+extern void alignment_exception(struct pt_regs *regs);
+extern void program_check_exception(struct pt_regs *regs);
+extern void single_step_exception(struct pt_regs *regs);
 extern int do_signal(sigset_t *, struct pt_regs *);
 extern int pmac_newworld;
 extern int sys_sigreturn(struct pt_regs *regs);
@@ -72,10 +72,10 @@ EXPORT_SYMBOL(clear_user_page);
 EXPORT_SYMBOL(do_signal);
 EXPORT_SYMBOL(transfer_to_handler);
 EXPORT_SYMBOL(do_IRQ);
-EXPORT_SYMBOL(MachineCheckException);
-EXPORT_SYMBOL(AlignmentException);
-EXPORT_SYMBOL(ProgramCheckException);
-EXPORT_SYMBOL(SingleStepException);
+EXPORT_SYMBOL(machine_check_exception);
+EXPORT_SYMBOL(alignment_exception);
+EXPORT_SYMBOL(program_check_exception);
+EXPORT_SYMBOL(single_step_exception);
 EXPORT_SYMBOL(sys_sigreturn);
 EXPORT_SYMBOL(ppc_n_lost_interrupts);
 EXPORT_SYMBOL(ppc_lost_interrupts);
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 82e4d70e6dbb..26606aa33de6 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -74,7 +74,7 @@ void (*debugger_fault_handler)(struct pt_regs *regs);
 
 DEFINE_SPINLOCK(die_lock);
 
-void die(const char * str, struct pt_regs * fp, long err)
+int die(const char * str, struct pt_regs * fp, long err)
 {
         static int die_counter;
         int nl = 0;
@@ -232,7 +232,7 @@ platform_machine_check(struct pt_regs *regs)
 {
 }
 
-void MachineCheckException(struct pt_regs *regs)
+void machine_check_exception(struct pt_regs *regs)
 {
         unsigned long reason = get_mc_reason(regs);
 
@@ -393,14 +393,14 @@ void SMIException(struct pt_regs *regs)
 #endif
 }
 
-void UnknownException(struct pt_regs *regs)
+void unknown_exception(struct pt_regs *regs)
 {
         printk("Bad trap at PC: %lx, MSR: %lx, vector=%lx    %s\n",
                regs->nip, regs->msr, regs->trap, print_tainted());
         _exception(SIGTRAP, regs, 0, 0);
 }
 
-void InstructionBreakpoint(struct pt_regs *regs)
+void instruction_breakpoint_exception(struct pt_regs *regs)
 {
         if (debugger_iabr_match(regs))
                 return;
@@ -622,7 +622,7 @@ int check_bug_trap(struct pt_regs *regs)
         return 0;
 }
 
-void ProgramCheckException(struct pt_regs *regs)
+void program_check_exception(struct pt_regs *regs)
 {
         unsigned int reason = get_reason(regs);
         extern int do_mathemu(struct pt_regs *regs);
@@ -701,7 +701,7 @@ void ProgramCheckException(struct pt_regs *regs)
                 _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
 }
 
-void SingleStepException(struct pt_regs *regs)
+void single_step_exception(struct pt_regs *regs)
 {
         regs->msr &= ~(MSR_SE | MSR_BE);  /* Turn off 'trace' bits */
         if (debugger_sstep(regs))
@@ -709,7 +709,7 @@ void SingleStepException(struct pt_regs *regs)
         _exception(SIGTRAP, regs, TRAP_TRACE, 0);
 }
 
-void AlignmentException(struct pt_regs *regs)
+void alignment_exception(struct pt_regs *regs)
 {
         int fixed;
 
@@ -814,7 +814,7 @@ void TAUException(struct pt_regs *regs)
 }
 #endif /* CONFIG_INT_TAU */
 
-void AltivecUnavailException(struct pt_regs *regs)
+void altivec_unavailable_exception(struct pt_regs *regs)
 {
         static int kernel_altivec_count;
 
@@ -835,7 +835,7 @@ void AltivecUnavailException(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_ALTIVEC
-void AltivecAssistException(struct pt_regs *regs)
+void altivec_assist_exception(struct pt_regs *regs)
 {
         int err;
 
@@ -872,7 +872,7 @@ void AltivecAssistException(struct pt_regs *regs)
 #endif /* CONFIG_ALTIVEC */
 
 #ifdef CONFIG_E500
-void PerformanceMonitorException(struct pt_regs *regs)
+void performance_monitor_exception(struct pt_regs *regs)
 {
         perf_irq(regs);
 }
diff --git a/arch/ppc/syslib/ibm44x_common.c b/arch/ppc/syslib/ibm44x_common.c
index 7612e0623f99..95e11f93c15d 100644
--- a/arch/ppc/syslib/ibm44x_common.c
+++ b/arch/ppc/syslib/ibm44x_common.c
@@ -178,7 +178,7 @@ void __init ibm44x_platform_init(void)
 #endif
 }
 
-/* Called from MachineCheckException */
+/* Called from machine_check_exception */
 void platform_machine_check(struct pt_regs *regs)
 {
         printk("PLB0: BEAR=0x%08x%08x ACR=  0x%08x BESR= 0x%08x\n",
diff --git a/arch/ppc/syslib/ppc4xx_setup.c b/arch/ppc/syslib/ppc4xx_setup.c
index b843c4fef25e..def724b6e1c9 100644
--- a/arch/ppc/syslib/ppc4xx_setup.c
+++ b/arch/ppc/syslib/ppc4xx_setup.c
@@ -279,7 +279,7 @@ ppc4xx_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif /* defined(CONFIG_PCI) && defined(CONFIG_IDE) */
 }
 
-/* Called from MachineCheckException */
+/* Called from machine_check_exception */
 void platform_machine_check(struct pt_regs *regs)
 {
 #if defined(DCRN_PLB0_BEAR)