On Mon, 22 Jul 2013, Sudeep KarkadaNagesha wrote:
> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@xxxxxxx>
>
> OF/DT core library now provides architecture specific hook to match the
> logical cpu index with the corresponding physical identifier. Most of the
> cpu DT node parsing and initialisation is contained in devtree.c. So it's
> better to define ARM specific arch_match_cpu_phys_id there.
>
> This mainly helps to avoid replication of the code doing CPU node parsing
> and physical(MPIDR) to logical mapping.
>
> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> Acked-by: Rob Herring <rob.herring@xxxxxxxxxxx>
> Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@xxxxxxx>
Acked-by: Nicolas Pitre <nico@xxxxxxxxxx>
> ---
> arch/arm/kernel/devtree.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
> index 5859c8b..2ee8a17 100644
> --- a/arch/arm/kernel/devtree.c
> +++ b/arch/arm/kernel/devtree.c
> @@ -169,6 +169,11 @@ void __init arm_dt_init_cpu_maps(void)
> }
> }
>
> +bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
> +{
> + return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu);
> +}
> +
> /**
> * setup_machine_fdt - Machine setup when an dtb was passed to the kernel
> * @dt_phys: physical address of dt blob
> --
> 1.8.1.2
>
>
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