Re: [PATCH v7 04/24] x86/resctrl: Detect Assignable Bandwidth Monitoring feature details

[Reinette Chatre]

Hi Babu,

On 9/4/24 3:21 PM, Babu Moger wrote:
> diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c
> index 795fe91a8feb..6a792f06f5ce 100644
> --- a/arch/x86/kernel/cpu/resctrl/monitor.c
> +++ b/arch/x86/kernel/cpu/resctrl/monitor.c
> @@ -1229,6 +1229,12 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r)
>  			mbm_local_event.configurable = true;
>  			mbm_config_rftype_init("mbm_local_bytes_config");
>  		}
> +
> +		if (rdt_cpu_has(X86_FEATURE_ABMC)) {
> +			r->mon.mbm_cntr_assignable = true;
> +			cpuid_count(0x80000020, 5, &eax, &ebx, &ecx, &edx);
> +			r->mon.num_mbm_cntrs = (ebx & 0xFFFF) + 1;

This should use GENMASK()

Reinette