linux-kernel - Re: [PATCH tip rebase] perf/x86/intel/cstate: Add pkg C2 residency counter for Sierra Forest

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5bd0d2dd-27cd-4054-b152-c5acf7ef3084@linux.intel.com>
Date: Wed, 17 Jul 2024 09:06:43 -0400
From: "Liang, Kan" <kan.liang@...ux.intel.com>
To: Zhenyu Wang <zhenyuw@...ux.intel.com>,
 Peter Zijlstra <peterz@...radead.org>
Cc: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
 x86@...nel.org, Rui Zhang <rui.zhang@...el.com>,
 Artem Bityutskiy <artem.bityutskiy@...el.com>,
 Wendy Wang <wendy.wang@...el.com>
Subject: Re: [PATCH tip rebase] perf/x86/intel/cstate: Add pkg C2 residency
 counter for Sierra Forest



On 2024-07-16 11:16 p.m., Zhenyu Wang wrote:
> Package C2 residency counter is also available on Sierra Forest.
> So add it support in srf_cstates.
> 
> Cc: Rui Zhang <rui.zhang@...el.com>
> Cc: Artem Bityutskiy <artem.bityutskiy@...el.com>
> Cc: Wendy Wang <wendy.wang@...el.com>
> Tested-by: Wendy Wang <wendy.wang@...el.com>
> Fixes: 3877d55a0db2 ("perf/x86/intel/cstate: Add Sierra Forest support")
> Signed-off-by: Zhenyu Wang <zhenyuw@...ux.intel.com>

Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>

Thanks,
Kan

> ---
> 
> Hi, Peter
> 
> This refresh resolved conflicts in comment against current tip tree.
> Please help to apply.
> 
> Thanks!
> 
>  arch/x86/events/intel/cstate.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
> index be58cfb012dd..9f116dfc4728 100644
> --- a/arch/x86/events/intel/cstate.c
> +++ b/arch/x86/events/intel/cstate.c
> @@ -64,7 +64,7 @@
>   *			       perf code: 0x00
>   *			       Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM,CNL,
>   *						KBL,CML,ICL,ICX,TGL,TNT,RKL,ADL,
> - *						RPL,SPR,MTL,ARL,LNL
> + *						RPL,SPR,MTL,ARL,LNL,SRF
>   *			       Scope: Package (physical package)
>   *	MSR_PKG_C3_RESIDENCY:  Package C3 Residency Counter.
>   *			       perf code: 0x01
> @@ -693,7 +693,8 @@ static const struct cstate_model srf_cstates __initconst = {
>  	.core_events		= BIT(PERF_CSTATE_CORE_C1_RES) |
>  				  BIT(PERF_CSTATE_CORE_C6_RES),
>  
> -	.pkg_events		= BIT(PERF_CSTATE_PKG_C6_RES),
> +	.pkg_events		= BIT(PERF_CSTATE_PKG_C2_RES) |
> +				  BIT(PERF_CSTATE_PKG_C6_RES),
>  
>  	.module_events		= BIT(PERF_CSTATE_MODULE_C6_RES),
>  };