linux-kernel - Re: [PATCH] x86, perf: Update Haswell PEBS event table

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Date:	Fri, 16 May 2014 09:19:28 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	peterz@...radead.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] x86, perf: Update Haswell PEBS event table

On Thu, Apr 17, 2014 at 05:03:44PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> - We were allowing some sub events in c4 that are not in the event list.
> Tighten the check slightly.
> - We were missing some valid subevents in d1-d3. Allow all subevents.
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  arch/x86/kernel/cpu/perf_event_intel_ds.c | 21 +++++++++------------
>  1 file changed, 9 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
> index 7e9546a..07feaa0 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
> @@ -641,7 +641,11 @@ struct event_constraint intel_hsw_pebs_event_constraints[] = {
>  	INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
>  	INTEL_PST_HSW_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
>  	INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
> -	INTEL_EVENT_CONSTRAINT(0xc4, 0xf),    /* BR_INST_RETIRED.* */
> +	INTEL_UEVENT_CONSTRAINT(0x1c4, 0xf),	/* BR_INST_RETIRED.CONDITIONAL */
> +	INTEL_UEVENT_CONSTRAINT(0x2c4, 0xf),	/* BR_INST_RETIRED.NEAR_CALL */
> +	INTEL_UEVENT_CONSTRAINT(0x4c4, 0xf),	/* BR_INST_RETIRED.ALL_BRANCHES */
> +	INTEL_UEVENT_CONSTRAINT(0x8c4, 0xf),	/* BR_INST_RETIRED.NEAR_RETURN */
> +	INTEL_UEVENT_CONSTRAINT(0x20c4, 0xf),	/* BR_INST_RETIRED.NEAR_TAKEN */
>  	INTEL_UEVENT_CONSTRAINT(0x01c5, 0xf), /* BR_MISP_RETIRED.CONDITIONAL */
>  	INTEL_UEVENT_CONSTRAINT(0x04c5, 0xf), /* BR_MISP_RETIRED.ALL_BRANCHES */
>  	INTEL_UEVENT_CONSTRAINT(0x20c5, 0xf), /* BR_MISP_RETIRED.NEAR_TAKEN */
> @@ -656,17 +660,10 @@ struct event_constraint intel_hsw_pebs_event_constraints[] = {
>  	INTEL_UEVENT_CONSTRAINT(0x42d0, 0xf),
>  	INTEL_UEVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOPS_RETIRED.ALL_LOADS */
>  	INTEL_PST_HSW_CONSTRAINT(0x82d0, 0xf), /* MEM_UOPS_RETIRED.ALL_STORES */
> -	INTEL_UEVENT_CONSTRAINT(0x01d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L1_HIT */
> -	INTEL_UEVENT_CONSTRAINT(0x02d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L2_HIT */
> -	INTEL_UEVENT_CONSTRAINT(0x04d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L3_HIT */
> -	/* MEM_LOAD_UOPS_RETIRED.HIT_LFB */
> -	INTEL_UEVENT_CONSTRAINT(0x40d1, 0xf),
> -	/* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_MISS */
> -	INTEL_UEVENT_CONSTRAINT(0x01d2, 0xf),
> -	/* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_HIT */
> -	INTEL_UEVENT_CONSTRAINT(0x02d2, 0xf),
> -	/* MEM_LOAD_UOPS_LLC_MISS_RETIRED.LOCAL_DRAM */
> -	INTEL_UEVENT_CONSTRAINT(0x01d3, 0xf),
> +	INTEL_EVENT_CONSTRAINT(0xd1, 0xf),	/* MEM_LOAD_UOPS_RETIRED.* */
> +	INTEL_EVENT_CONSTRAINT(0xd2, 0xf),	/* MEM_LOAD_UOPS_L3_HIT_RETIRED.* */
> +	INTEL_EVENT_CONSTRAINT(0xd3, 0xf),	/* MEM_LOAD_UOPS_L3_MISS_RETIRED.* */
> +	INTEL_EVENT_CONSTRAINT(0xd3, 0xf),	/* MEM_LOAD_UOPS_L3_MISS_RETIRED.* */

It looks like the last line is duplicated here..

Cheers,
Don

>  	INTEL_UEVENT_CONSTRAINT(0x04c8, 0xf), /* HLE_RETIRED.Abort */
>  	INTEL_UEVENT_CONSTRAINT(0x04c9, 0xf), /* RTM_RETIRED.Abort */
>  
> -- 
> 1.8.5.3
> 
> --
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