diff options
| author | Anton Blanchard <anton@samba.org> | 2005-06-02 14:02:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-02 15:12:30 -0700 |
| commit | 6dc2f0c7df6cefda5932ac8bcd9ca5ef45de36ee (patch) | |
| tree | ce3f5ba4f99adfbc7adf4242d5bc76a8d0c3fd69 /arch/ppc64/kernel/entry.S | |
| parent | 79f1248962cfa1e11a5610e0349bc3515687516d (diff) | |
[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>
Diffstat (limited to 'arch/ppc64/kernel/entry.S')
| -rw-r--r-- | arch/ppc64/kernel/entry.S | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/ppc64/kernel/entry.S b/arch/ppc64/kernel/entry.S index d3604056e1a..b61572eb2a7 100644 --- a/arch/ppc64/kernel/entry.S +++ b/arch/ppc64/kernel/entry.S @@ -436,15 +436,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) REST_8GPRS(14, r1) REST_10GPRS(22, r1) -#ifdef CONFIG_PPC_ISERIES - clrrdi r7,r1,THREAD_SHIFT /* get current_thread_info() */ - ld r7,TI_FLAGS(r7) /* Get run light flag */ - mfspr r9,CTRLF - srdi r7,r7,TIF_RUN_LIGHT - insrdi r9,r7,1,63 /* Insert run light into CTRL */ - mtspr CTRLT,r9 -#endif - /* convert old thread to its task_struct for return value */ addi r3,r3,-THREAD ld r7,_NIP(r1) /* Return to _switch caller in new task */ |