[PATCH] ppc64: cleanup iseries runlight support

The iseries has a bar graph on the front panel that shows how busy it is.
The operating system sets and clears a bit in the CTRL register to control
it.

Instead of going to the complexity of using a thread info bit, just set and
clear it in the idle loop.

Also create two helper functions, ppc64_runlatch_on and ppc64_runlatch_off.

Finally don't use the short form of the SPR defines.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 92a744c31ab1..346dbf606b5d 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -626,10 +626,10 @@ system_reset_iSeries:
         lhz     r24,PACAPACAINDEX(r13)  /* Get processor # */
         cmpwi   0,r24,0                 /* Are we processor 0? */
         beq     .__start_initialization_iSeries /* Start up the first processor */
-        mfspr   r4,CTRLF
-        li      r5,RUNLATCH             /* Turn off the run light */
+        mfspr   r4,SPRN_CTRLF
+        li      r5,CTRL_RUNLATCH        /* Turn off the run light */
         andc    r4,r4,r5
-        mtspr   CTRLT,r4
+        mtspr   SPRN_CTRLT,r4
 
 1:
         HMT_LOW
@@ -2082,9 +2082,9 @@ _GLOBAL(hmt_start_secondary)
         mfspr   r4, HID0
         ori     r4, r4, 0x1
         mtspr   HID0, r4
-        mfspr   r4, CTRLF
+        mfspr   r4, SPRN_CTRLF
         oris    r4, r4, 0x40
-        mtspr   CTRLT, r4
+        mtspr   SPRN_CTRLT, r4
         blr
 #endif