diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2009-09-08 19:38:52 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-09-11 03:27:57 +0200 |
| commit | 757cbd46d11cfa7506b7dd5dd6657ae645bf6a17 (patch) | |
| tree | e8d13af7e6fcf5ef34f24dc4f2538b9f1f31d4c1 | |
| parent | powerpc/irq: Improve nanodoc (diff) | |
| download | linux-757cbd46d11cfa7506b7dd5dd6657ae645bf6a17.tar.xz linux-757cbd46d11cfa7506b7dd5dd6657ae645bf6a17.zip | |
powerpc/85xx: Fix SMP compile error and allow NULL for smp_ops
The following commit introduced a compile error since it removed
the implementation of smp_85xx_basic_setup:
commit 77c0a700c1c292edafa11c1e52821ce4636f81b0
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri Aug 28 14:25:04 2009 +1000
powerpc: Properly start decrementer on BookE secondary CPUs
Make it so that smp_ops probe() and setup_cpu() can be set to NULL.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 10 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 10 |
2 files changed, 7 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 96f107cc0160..d387b3937ccc 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -269,7 +269,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus) cpu_callin_map[boot_cpuid] = 1; if (smp_ops) - max_cpus = smp_ops->probe(); + if (smp_ops->probe) + max_cpus = smp_ops->probe(); + else + max_cpus = NR_CPUS; else max_cpus = 1; @@ -493,7 +496,8 @@ int __devinit start_secondary(void *unused) preempt_disable(); cpu_callin_map[cpu] = 1; - smp_ops->setup_cpu(cpu); + if (smp_ops->setup_cpu) + smp_ops->setup_cpu(cpu); if (smp_ops->take_timebase) smp_ops->take_timebase(); @@ -556,7 +560,7 @@ void __init smp_cpus_done(unsigned int max_cpus) old_mask = current->cpus_allowed; set_cpus_allowed(current, cpumask_of_cpu(boot_cpuid)); - if (smp_ops) + if (smp_ops && smp_ops->setup_cpu) smp_ops->setup_cpu(boot_cpuid); set_cpus_allowed(current, old_mask); diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index 94f901da4918..04160a4cc699 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -88,25 +88,15 @@ struct smp_ops_t smp_85xx_ops = { .kick_cpu = smp_85xx_kick_cpu, }; -static int __init smp_dummy_probe(void) -{ - return NR_CPUS; -} - void __init mpc85xx_smp_init(void) { struct device_node *np; - smp_85xx_ops.message_pass = NULL; - np = of_find_node_by_type(NULL, "open-pic"); if (np) { smp_85xx_ops.probe = smp_mpic_probe; smp_85xx_ops.setup_cpu = smp_85xx_setup_cpu; smp_85xx_ops.message_pass = smp_mpic_message_pass; - } else { - smp_85xx_ops.probe = smp_dummy_probe; - smp_85xx_ops.setup_cpu = smp_85xx_basic_setup; } if (cpu_has_feature(CPU_FTR_DBELL)) |