[POWERPC] PS3: Save power in busy loops on halt

[pandora-kernel.git] / arch / powerpc / platforms / ps3 / setup.c

diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 5c2cbb0..c144669 100644 (file)
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -95,6 +95,14 @@ static void ps3_power_off(void)
        ps3_sys_manager_power_off(); /* never returns */
 }
 
+static void ps3_halt(void)
+{
+       DBG("%s:%d\n", __func__, __LINE__);
+
+       smp_send_stop();
+       ps3_sys_manager_halt(); /* never returns */
+}
+
 static void ps3_panic(char *str)
 {
        DBG("%s:%d %s\n", __func__, __LINE__, str);
@@ -105,7 +113,8 @@ static void ps3_panic(char *str)
        printk("   Please press POWER button.\n");
        printk("\n");
 
-       while(1);
+       while(1)
+               lv1_pause(1);
 }
 
 #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
@@ -266,6 +275,7 @@ define_machine(ps3) {
        .progress                       = ps3_progress,
        .restart                        = ps3_restart,
        .power_off                      = ps3_power_off,
+       .halt                           = ps3_halt,
 #if defined(CONFIG_KEXEC)
        .kexec_cpu_down                 = ps3_kexec_cpu_down,
        .machine_kexec                  = default_machine_kexec,