Re: [PATCH v7 20/49] x86/resctrl: Change mon_event_config_{read,write}() to be arch helpers

Fenghua Yu
2025-03-06T21:32:57Z

On 2/28/25 11:58, James Morse wrote:
> mon_event_config_{read,write}() are called via IPI and access model
> specific registers to do their work.
>
> To support another architecture, this needs abstracting.
>
> Rename mon_event_config_{read,write}() to have a "resctrl_arch_"
> prefix, and move their struct mon_config_info parameter into
> <linux/resctrl.h>. This allows another architecture to supply an
> implementation of these.
>
> As struct mon_config_info is now exposed globally, give it a 'resctrl_'
> prefix. MPAM systems need access to the domain to do this work, add
> the resource and domain to struct resctrl_mon_config_info.
>
> Co-developed-by: Dave Martin <Dave.Martin@arm.com>
> Signed-off-by: Dave Martin <Dave.Martin@arm.com>
> Signed-off-by: James Morse <james.morse@arm.com>
> Tested-by: Carl Worth <carl@os.amperecomputing.com> # arm64
> Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
> Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
> Reviewed-by: Tony Luck <tony.luck@intel.com>
> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>

Thanks.

-Fenghua