linux-kernel - Re: [v3, 1/6] powerpc/perf: Define big-endian version of perf_mem_data

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Message-Id: <3w7bcy6DMrz9s7B@ozlabs.org>
Date:   Thu, 20 Apr 2017 08:04:18 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
Cc:     wangnan0@...wei.com,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        peterz@...radead.org, linux-kernel@...r.kernel.org,
        acme@...nel.org, ast@...nel.org,
        alexander.shishkin@...ux.intel.com, mingo@...hat.com,
        paulus@...ba.org, eranian@...gle.com, andrew.donnellan@....ibm.com,
        sukadev@...ux.vnet.ibm.com, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [v3, 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src

On Tue, 2017-04-11 at 01:51:05 UTC, Madhavan Srinivasan wrote:
> From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
> 
> perf_mem_data_src is an union that is initialized via the ->val field
> and accessed via the bitmap fields. For this to work on big endian
> platforms (Which is broken now), we also need a big-endian represenation
> of perf_mem_data_src. i.e, in a big endian system, if user request
> PERF_SAMPLE_DATA_SRC (perf report -d), will get the default value from
> perf_sample_data_init(), which is PERF_MEM_NA. Value for PERF_MEM_NA
> is constructed using shifts:
...
> 
> Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
> Signed-off-by: Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/8c5073db0ee680c7e70e123918c9b2

cheers