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_6xx.S b/arch/powerpc/kernel/idle_6xx.S
index 444fdcc769f1..1647ea361ef7 100644
--- a/arch/powerpc/kernel/idle_6xx.S
+++ b/arch/powerpc/kernel/idle_6xx.S
@@ -87,19 +87,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
         cmpwi   0,r3,0
         beqlr
 
-        /* Clear MSR:EE */
-        mfmsr   r7
-        rlwinm  r0,r7,0,17,15
-        mtmsr   r0
-
-        /* Check current_thread_info()->flags */
-        rlwinm  r4,r1,0,0,18
-        lwz     r4,TI_FLAGS(r4)
-        andi.   r0,r4,_TIF_NEED_RESCHED
-        beq     1f
-        mtmsr   r7      /* out of line this ? */
-        blr
-1:      
         /* Some pre-nap cleanups needed on some CPUs */
         andis.  r0,r3,HID0_NAP@h
         beq     2f
@@ -220,8 +207,6 @@ _GLOBAL(nap_save_msscr0)
 _GLOBAL(nap_save_hid1)
         .space  4*NR_CPUS
 
-_GLOBAL(powersave_nap)
-        .long   0
 _GLOBAL(powersave_lowspeed)
         .long   0