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SubjectRe: [RFC 1/6] powerpc:/drc Define interface to acquire arch-specific drc info
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On 12/14/2018 12:50 PM, Michael Bringmann wrote:
> Define interface to acquire arch-specific drc info to match against
> hotpluggable devices. The current implementation exposes several
> pseries-specific dynamic memory properties in generic kernel code.
> This patch set provides an interface to pull that code out of the
> generic kernel.
>
> Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
> ---
> include/linux/topology.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/include/linux/topology.h b/include/linux/topology.h
> index cb0775e..df97f5f 100644
> --- a/include/linux/topology.h
> +++ b/include/linux/topology.h
> @@ -44,6 +44,15 @@
>
> int arch_update_cpu_topology(void);

On another note a kern doc comment for this function would also be nice.

-Tyrel

>
> +int arch_find_drc_match(struct device_node *dn,
> + bool (*usercb)(struct device_node *dn,
> + u32 drc_index, char *drc_name,
> + char *drc_type, u32 drc_power_domain,
> + void *data),
> + char *opt_drc_type, char *opt_drc_name,
> + bool match_drc_index, bool ck_php_type,
> + void *data);
> +
> /* Conform to ACPI 2.0 SLIT distance definitions */
> #define LOCAL_DISTANCE 10
> #define REMOTE_DISTANCE 20
>

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