Re: [UPDATED PATCH 21/27] sparc32, smpboot: Use generic SMPbooting infrastructure

From: Sam Ravnborg
Date: Sat Jun 02 2012 - 02:53:28 EST


Hi Srivatsa.

I cannot see how this would work for sparc32...
[Did not notice before...]

> --- a/arch/sparc/kernel/leon_smp.c
> +++ b/arch/sparc/kernel/leon_smp.c

> +void __cpuinit __cpu_pre_starting(void *unused)
> +{
> + unsigned int cpuid = hard_smp_processor_id();
>
> diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
> index ddaea31..cd5367a 100644
> --- a/arch/sparc/kernel/sun4d_smp.c
> +++ b/arch/sparc/kernel/sun4d_smp.c

> +void __cpuinit __cpu_pre_starting(void *unused)
> +{
> + unsigned int cpuid = hard_smp_processor_id();
>
> diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
> index 128af73..ed05f54 100644
> --- a/arch/sparc/kernel/sun4m_smp.c
> +++ b/arch/sparc/kernel/sun4m_smp.c

> +void __cpuinit __cpu_pre_starting(void *unused)
> +{
> + unsigned int cpuid = hard_smp_processor_id();

See how you define a function with the same name three times.
On sparc32 we include all of the above files in the kernel,
and uses various tricks to determine at run-time
which variant to use.

We need to define these general functions in smp_32.c and
then take relevant action depending on sparc_cpu_model.

Sam
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