linux-kernel - Re: [PATCH] perf mem/c2c: Fix perf_mem

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Date:   Mon, 28 Jan 2019 15:38:15 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
To:     acme@...nel.org, Michael Ellerman <mpe@...erman.id.au>
Cc:     jolsa@...hat.com, namhyung@...nel.org, dzickus@...hat.com,
        fowles@...each.com, jmario@...hat.com,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        maddy@...ux.vnet.ibm.com
Subject: Re: [PATCH] perf mem/c2c: Fix perf_mem_events to support powerpc



On 1/14/19 9:44 AM, Ravi Bangoria wrote:
> Powerpc hw does not have inbuilt latency filter (--ldlat) for mem-load
> event and, perf_mem_events by default includes ldlat=30 which is
> causing failure on powerpc. Refactor code to support perf mem/c2c on
> powerpc.
> 
> This patch depends on kernel side changes done my Madhavan:
> https://lists.ozlabs.org/pipermail/linuxppc-dev/2018-December/182596.html
> 
> Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>


Arnaldo / Michael, Any thoughts?

Thanks.