linux-kernel - Re: [PATCH] x86,perf: Add IvyBridge EP support

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Date:	Sat, 5 Jan 2013 09:12:55 -0500
From:	Youquan Song <youquan.song@...ux.intel.com>
To:	Youquan Song <youquan.song@...el.com>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>, mingo@...nel.org,
	Stephane Eranian <eranian@...gle.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Andi Kleen <andi@...stfloor.org>, tglx@...utronix.de,
	Youquan Song <youquan.song@...ux.intel.com>
Subject: Re: [PATCH] x86,perf: Add IvyBridge EP support


Would you like to take it? It is needed by Linux OSVs.

Thanks
-Youquan

On Tue, Dec 18, 2012 at 12:20:23PM -0500, Youquan Song wrote:
> Run in perf utility at Ivybridge EP server, encouter "not supported" event
> 
>    <not supported> L1-dcache-loads         
>    <not supported> L1-dcache-load-misses   
>    <not supported> L1-dcache-stores        
>    <not supported> L1-dcache-store-misses  
>    <not supported> L1-dcache-prefetches    
>    <not supported> L1-dcache-prefetch-misses
> 
> This patch add the support for this processor.
> 
> Reviewed-by: Andi Kleen <ak@...ux.intel.com>
> Signed-off-by: Youquan Song <youquan.song@...el.com>
> ---
>  arch/x86/kernel/cpu/perf_event_intel.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
> index 324bb52..aea3503 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel.c
> @@ -2075,6 +2075,7 @@ __init int intel_pmu_init(void)
>  		pr_cont("SandyBridge events, ");
>  		break;
>  	case 58: /* IvyBridge */
> +	case 62: /* IvyBridge EP */
>  		memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
>  		       sizeof(hw_cache_event_ids));
>  		memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
> -- 
> 1.6.4.2
> 
 
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