AcoSail/kernel_optimize_test
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Merge do_boot_cpu() into the new style __cpu_up().

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2005-02-22 21:18:01 +00:00
parent 0ac354801a
commit b727a60258
1 changed files with 19 additions and 31 deletions
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50
arch/mips/kernel/smp.c
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@ -247,32 +247,6 @@ void __devinit smp_prepare_boot_cpu(void)
cpu_set(0, cpu_callin_map);
}
/*
* Startup the CPU with this logical number
*/
static int __init do_boot_cpu(int cpu)
{
struct task_struct *idle;
/*
* The following code is purely to make sure
* Linux can schedule processes on this slave.
*/
idle = fork_idle(cpu);
if (IS_ERR(idle))
panic("failed fork for CPU %d\n", cpu);
prom_boot_secondary(cpu, idle);
/* XXXKW timeout */
while (!cpu_isset(cpu, cpu_callin_map))
udelay(100);
cpu_set(cpu, cpu_online_map);
return 0;
}
/*
* Called once for each "cpu_possible(cpu)". Needs to spin up the cpu
* and keep control until "cpu_online(cpu)" is set. Note: cpu is
@ -280,12 +254,26 @@ static int __init do_boot_cpu(int cpu)
*/
int __devinit __cpu_up(unsigned int cpu)
{
int ret;
struct task_struct *idle;
/* Processor goes to start_secondary(), sets online flag */
ret = do_boot_cpu(cpu);
if (ret < 0)
return ret;
/*
* Processor goes to start_secondary(), sets online flag
* The following code is purely to make sure
* Linux can schedule processes on this slave.
*/
idle = fork_idle(cpu);
if (IS_ERR(idle))
panic(KERN_ERR "Fork failed for CPU %d", cpu);
prom_boot_secondary(cpu, idle);
/*
* Trust is futile. We should really have timeouts ...
*/
while (!cpu_isset(cpu, cpu_callin_map))
udelay(100);
cpu_set(cpu, cpu_online_map);
return 0;
}