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From: Song Liu <songliubraving@fb.com>
To: kajoljain <kjain@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	"open list:BPF (Safe dynamic programs and tools)" 
	<bpf@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, Kernel Team <Kernel-team@fb.com>
Subject: Re: [PATCH bpf-next 1/3] perf: enable branch record for software events
Date: Thu, 26 Aug 2021 16:41:20 +0000	[thread overview]
Message-ID: <A07D405F-45B8-43A7-9159-BE71F9069139@fb.com> (raw)
In-Reply-To: <71cdc0ec-1b58-69c1-eaca-631800774c13@linux.ibm.com>



> On Aug 26, 2021, at 12:56 AM, kajoljain <kjain@linux.ibm.com> wrote:
> 
> 
> 
> On 8/25/21 8:52 PM, Song Liu wrote:
>> 
>> 
>>> On Aug 25, 2021, at 5:09 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>>> 
>>> On Mon, Aug 23, 2021 at 11:01:55PM -0700, Song Liu wrote:
>>> 
>>>> arch/x86/events/intel/core.c |  5 ++++-
>>>> arch/x86/events/intel/lbr.c  | 12 ++++++++++++
>>>> arch/x86/events/perf_event.h |  2 ++
>>>> include/linux/perf_event.h   | 33 +++++++++++++++++++++++++++++++++
>>>> kernel/events/core.c         | 28 ++++++++++++++++++++++++++++
>>>> 5 files changed, 79 insertions(+), 1 deletion(-)
>>> 
>>> No PowerPC support :/
>> 
>> I don't have PowerPC system for testing at the moment. I guess we can decide
>> the overall framework now, and ask PowerPC folks' help on PowerPC support
>> later? 
> 
> Hi Song,
>   I will look at powerpc side to enable this.
> 
> Thanks,
> Kajol Jain

Thanks Kajol! 

Let me address Peter's other comments and send v2. We can then merge in  
PowerPC support.

Song

  reply	other threads:[~2021-08-26 16:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-24  6:01 [PATCH bpf-next 0/3] bpf: introduce bpf_get_branch_trace Song Liu
2021-08-24  6:01 ` [PATCH bpf-next 1/3] perf: enable branch record for software events Song Liu
2021-08-25 12:09   ` Peter Zijlstra
2021-08-25 15:22     ` Song Liu
2021-08-26  7:56       ` kajoljain
2021-08-26 16:41         ` Song Liu [this message]
2021-08-24  6:01 ` [PATCH bpf-next 2/3] bpf: introduce helper bpf_get_branch_trace Song Liu
2021-08-25  1:14   ` kernel test robot
2021-08-24  6:01 ` [PATCH bpf-next 3/3] selftests/bpf: add test for bpf_get_branch_trace Song Liu
2021-08-31  1:30 [selftests/bpf] 8dff2c1958: BUG:using_smp_processor_id()in_preemptible kernel test robot
2021-08-31  4:45 ` Song Liu

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