powerpc: Unify the 32 and 64 bit idle loops

This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle
loops.  It brings over the concept of having a ppc_md.power_save
function from 32-bit to ARCH=powerpc, which lets us get rid of
native_idle().  With this we will also be able to simplify the idle
handling for pSeries and cell.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 15 deletions

diff --git a/arch/powerpc/kernel/idle_power4.S b/arch/powerpc/kernel/idle_power4.S
index c16b4afab582..692cf2ebe0f4 100644
--- a/arch/powerpc/kernel/idle_power4.S
+++ b/arch/powerpc/kernel/idle_power4.S
@@ -49,21 +49,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_CAN_NAP)
         cmpwi   0,r4,0
         beqlr
 
-        /* Clear MSR:EE */
-        mfmsr   r7
-        li      r4,0
-        ori     r4,r4,MSR_EE
-        andc    r0,r7,r4
-        mtmsrd  r0
-
-        /* Check current_thread_info()->flags */
-        clrrdi  r4,r1,THREAD_SHIFT
-        ld      r4,TI_FLAGS(r4)
-        andi.   r0,r4,_TIF_NEED_RESCHED
-        beq     1f
-        mtmsrd  r7      /* out of line this ? */
-        blr
-1:
         /* Go to NAP now */
 BEGIN_FTR_SECTION
         DSSALL