From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: wangnan0@huawei.com,
Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
peterz@infradead.org, linux-kernel@vger.kernel.org,
acme@kernel.org, ast@kernel.org,
alexander.shishkin@linux.intel.com, mingo@redhat.com,
paulus@samba.org, eranian@google.com,
andrew.donnellan@au1.ibm.com, sukadev@linux.vnet.ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [v3, 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src
Date: Thu, 20 Apr 2017 08:04:18 +1000 (AEST) [thread overview]
Message-ID: <3w7bcy6DMrz9s7B@ozlabs.org> (raw)
In-Reply-To: <1491875470-17904-2-git-send-email-maddy@linux.vnet.ibm.com>
On Tue, 2017-04-11 at 01:51:05 UTC, Madhavan Srinivasan wrote:
> From: Sukadev Bhattiprolu <sukadev@linux.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@linux.vnet.ibm.com>
> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/8c5073db0ee680c7e70e123918c9b2
cheers
next prev parent reply other threads:[~2017-04-19 22:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-11 1:51 [PATCH v3 0/6] powerpc/perf: Export memory hierarchy level Madhavan Srinivasan
2017-04-11 1:51 ` [PATCH v3 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src Madhavan Srinivasan
2017-04-13 12:38 ` Peter Zijlstra
2017-04-13 13:23 ` Michael Ellerman
2017-04-17 3:46 ` Madhavan Srinivasan
2017-04-17 3:46 ` Madhavan Srinivasan
2017-04-19 4:50 ` Michael Ellerman
2017-04-19 14:32 ` Madhavan Srinivasan
2017-04-19 22:16 ` Michael Ellerman
2017-04-19 22:04 ` Michael Ellerman [this message]
2017-04-11 1:51 ` [PATCH v3 2/6] powerpc/perf: Export memory hierarchy info to user space Madhavan Srinivasan
2017-04-11 1:51 ` [PATCH v3 3/6] powerpc/perf: Support to export MMCRA[TEC*] field to userspace Madhavan Srinivasan
2017-04-11 1:51 ` [PATCH v3 4/6] powerpc/perf: Support to export SIERs bit in Power8 Madhavan Srinivasan
2017-04-11 1:51 ` [PATCH v3 5/6] powerpc/perf: Support to export SIERs bit in Power9 Madhavan Srinivasan
2017-04-11 1:51 ` [PATCH v3 6/6] powerpc/perf: Add Power8 mem_access event to sysfs Madhavan Srinivasan
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