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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-02-11 14:09:32 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-01 15:37:16 +1100 |
| commit | fb49f864c3c3f8ac5b68563774171fe43634ffeb (patch) | |
| tree | c10d14ef80f971b73e718333f407cd0ceb51699d /arch/powerpc/platforms/powermac | |
| parent | 7a53a4fe707a93a33f6c5d42173bf213cb6ff71d (diff) | |
powerpc/pmac/smp: Fix 32-bit PowerMac cpu_die
Use generic cpu_state, call idle_task_exit() properly, and
remove smp_core99_cpu_die() which isn't useful, the generic
function does the job just fine.
Diffstat (limited to 'arch/powerpc/platforms/powermac')
| -rw-r--r-- | arch/powerpc/platforms/powermac/smp.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index ebd2b7e037f..e0ac7bb77f2 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -880,31 +880,17 @@ int smp_core99_cpu_disable(void) return 0; } -static int cpu_dead[NR_CPUS]; - void pmac32_cpu_die(void) { local_irq_disable(); - cpu_dead[smp_processor_id()] = 1; + idle_task_exit(); + printk(KERN_DEBUG "CPU%d offline\n", smp_processor_id()); + __get_cpu_var(cpu_state) = CPU_DEAD; + smp_wmb(); mb(); low_cpu_die(); } -void smp_core99_cpu_die(unsigned int cpu) -{ - int timeout; - - timeout = 1000; - while (!cpu_dead[cpu]) { - if (--timeout == 0) { - printk("CPU %u refused to die!\n", cpu); - break; - } - msleep(1); - } - cpu_dead[cpu] = 0; -} - #endif /* CONFIG_HOTPLUG_CPU && CONFIG_PP32 */ /* Core99 Macs (dual G4s and G5s) */ @@ -918,12 +904,11 @@ struct smp_ops_t core99_smp_ops = { #if defined(CONFIG_HOTPLUG_CPU) # if defined(CONFIG_PPC32) .cpu_disable = smp_core99_cpu_disable, - .cpu_die = smp_core99_cpu_die, # endif # if defined(CONFIG_PPC64) .cpu_disable = generic_cpu_disable, - .cpu_die = generic_cpu_die, # endif + .cpu_die = generic_cpu_die, #endif }; |