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authorRalf Baechle <ralf@linux-mips.org>2006-02-23 12:23:27 +0000
committerRalf Baechle <ralf@linux-mips.org>2006-02-27 17:30:36 +0000
commit9b6695a8adfe0916e81ddd810a5b9db3eb8b0e46 (patch)
tree62ba9475530c88ccf2149cd58eabd97ebe096aca /arch/mips/sibyte
parent3e6cb2d38a9c9758170813497a860c64543643d5 (diff)
downloadop-kernel-dev-9b6695a8adfe0916e81ddd810a5b9db3eb8b0e46.zip
op-kernel-dev-9b6695a8adfe0916e81ddd810a5b9db3eb8b0e46.tar.gz
[MIPS] SMP: Fix initialization order bug.
A recent change requires cpu_possible_map to be initialized before smp_sched_init() but most MIPS platforms were initializing their processors in the prom_prepare_cpus callback of smp_prepare_cpus. The simple fix of calling prom_prepare_cpus from one of the earlier SMP initialization hooks doesn't work well either since IPIs may require init_IRQ() to have completed, so bit the bullet and split prom_prepare_cpus into two initialization functions, plat_smp_setup which is called early from setup_arch and plat_prepare_cpus called where prom_prepare_cpus used to be called. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sibyte')
-rw-r--r--arch/mips/sibyte/cfe/smp.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
index 4477af3..eab20e2 100644
--- a/arch/mips/sibyte/cfe/smp.c
+++ b/arch/mips/sibyte/cfe/smp.c
@@ -31,7 +31,7 @@
*
* Common setup before any secondaries are started
*/
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
{
int i, num;
@@ -40,14 +40,18 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;
- for (i=1, num=0; i<NR_CPUS; i++) {
+ for (i = 1, num = 0; i < NR_CPUS; i++) {
if (cfe_cpu_stop(i) == 0) {
cpu_set(i, phys_cpu_present_map);
__cpu_number_map[i] = ++num;
__cpu_logical_map[num] = i;
}
}
- printk("Detected %i available secondary CPU(s)\n", num);
+ printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
}
/*
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