[PATCH] CONFIG_PM for ppc64, to allow sysrq o

[PATCH] CONFIG_PM for ppc64, to allow sysrq o

[Olaf Hering]

For some weird reason, sysrq o is hidden behind CONFIG_PM.
Why? One can power off just fine without that. Can pm_sysrq_init be
moved to a better place? I think it used to be in sysrq.c in 2.4.

Too bad, with this patch radeonfb fails to compile.



Index: linux-2.6.11-olh/arch/ppc64/Kconfig
===================================================================
--- linux-2.6.11-olh.orig/arch/ppc64/Kconfig
+++ linux-2.6.11-olh/arch/ppc64/Kconfig
@@ -350,6 +350,8 @@ config CMDLINE
 
 endmenu
 
+source "kernel/power/Kconfig"
+
 source "drivers/Kconfig"
 
 source "fs/Kconfig"

Re: [PATCH] CONFIG_PM for ppc64, to allow sysrq o

[Olaf Hering]

 On Tue, Mar 15, Olaf Hering wrote:

> 
> For some weird reason, sysrq o is hidden behind CONFIG_PM.
> Why? One can power off just fine without that. Can pm_sysrq_init be
> moved to a better place? I think it used to be in sysrq.c in 2.4.
> 
> Too bad, with this patch radeonfb fails to compile.

After disabling radeon and this additional change, sysrq o powers off.
Just dont type too fast over hvc (ctrl o o)  ;)

Index: linux-2.6.11-olh/arch/ppc64/kernel/setup.c
===================================================================
--- linux-2.6.11-olh.orig/arch/ppc64/kernel/setup.c
+++ linux-2.6.11-olh/arch/ppc64/kernel/setup.c
@@ -31,6 +31,7 @@
 #include <linux/unistd.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
+#include <linux/pm.h>
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/processor.h>
@@ -710,6 +711,8 @@ void machine_halt(void)
 
 EXPORT_SYMBOL(machine_halt);
 
+void (*pm_power_off)(void) = machine_power_off;
+
 unsigned long ppc_proc_freq;
 unsigned long ppc_tb_freq;
 

Re: [PATCH] CONFIG_PM for ppc64, to allow sysrq o

[Benjamin Herrenschmidt]

On Tue, 2005-03-15 at 22:26 +0100, Olaf Hering wrote:
> For some weird reason, sysrq o is hidden behind CONFIG_PM.
> Why? One can power off just fine without that. Can pm_sysrq_init be
> moved to a better place? I think it used to be in sysrq.c in 2.4.
> 
> Too bad, with this patch radeonfb fails to compile.

Hehe :)

ppc64 isn't yet ready for CONFIG_PM, though I have some
hacks-in-progress ...

Ben.