From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: mathieu.poirier@linaro.org, mingo@redhat.com, acme@kernel.org,
linux-perf-users@vger.kernel.org, leo.yan@linaro.org,
quic_jinlmao@quicinc.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org,
Mike Leach <mike.leach@linaro.org>
Subject: Re: [PATCH v6 11/14] kernel: events: Export perf_report_aux_output_id()
Date: Tue, 13 Dec 2022 10:08:08 +0000 [thread overview]
Message-ID: <9ea2a0d8-b025-bb56-3a04-1a88e340da2d@arm.com> (raw)
In-Reply-To: <e3afc4ad-8a95-7d0b-832b-7f7a8be0b647@arm.com>
Peter,
On 24/11/2022 11:04, Suzuki Kuruppassery Poulose wrote:
> Peter
>
>
> On 23/11/2022 19:50, Mike Leach wrote:
>> CoreSight trace being updated to use the perf_report_aux_output_id()
>> in a similar way to intel-pt.
>>
>> This function in needs export visibility to allow it to be called from
>> kernel loadable modules, which CoreSight may configured to be built as.
>>
>> Signed-off-by: Mike Leach <mike.leach@linaro.org>
>> Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>> ---
>> kernel/events/core.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/kernel/events/core.c b/kernel/events/core.c
>> index 4ec3717003d5..ad388552f1d5 100644
>> --- a/kernel/events/core.c
>> +++ b/kernel/events/core.c
>> @@ -9231,6 +9231,7 @@ void perf_report_aux_output_id(struct perf_event
>> *event, u64 hw_id)
>> perf_output_end(&handle);
>> }
>> +EXPORT_SYMBOL_GPL(perf_report_aux_output_id);
>
> Are you happy with me picking up this change through the coresight tree ?
>
> Suzuki
>
Please could you let me know your thoughts on this ? Coresight PMU would
use this to inform the dynamically allocated trace id for a CPU to the
perf via this HWID packet.
If you are happy with the above change, I could pick it up via the
coresight tree with your Ack. Otherwise, please could you pick it
up ?
Suzuki
next prev parent reply other threads:[~2022-12-13 10:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 19:49 [PATCH v6 00/14] coresight: Add new API to allocate trace source ID values Mike Leach
2022-11-23 19:49 ` [PATCH v6 01/14] coresight: trace-id: Add API to dynamically assign Trace " Mike Leach
2022-11-23 19:49 ` [PATCH v6 02/14] coresight: Remove obsolete Trace ID unniqueness checks Mike Leach
2022-11-23 19:49 ` [PATCH v6 03/14] coresight: perf: traceid: Add perf ID allocation and notifiers Mike Leach
2022-11-23 19:50 ` [PATCH v6 04/14] coresight: stm: Update STM driver to use Trace ID API Mike Leach
2022-11-23 19:50 ` [PATCH v6 05/14] coresight: etm4x: Update ETM4 " Mike Leach
2022-11-23 19:50 ` [PATCH v6 06/14] coresight: etm3x: Update ETM3 " Mike Leach
2022-11-23 19:50 ` [PATCH v6 07/14] coresight: etmX.X: stm: Remove trace_id() callback Mike Leach
2022-11-23 19:50 ` [PATCH v6 08/14] coresight: trace id: Remove legacy get trace ID function Mike Leach
2022-11-23 19:50 ` [PATCH v6 09/14] perf: cs-etm: Move mapping of Trace ID and cpu into helper function Mike Leach
2022-11-23 19:50 ` [PATCH v6 10/14] perf: cs-etm: Update record event to use new Trace ID protocol Mike Leach
2022-11-23 19:50 ` [PATCH v6 11/14] kernel: events: Export perf_report_aux_output_id() Mike Leach
2022-11-24 11:04 ` Suzuki Kuruppassery Poulose
2022-12-13 10:08 ` Suzuki K Poulose [this message]
2023-01-06 9:54 ` Suzuki K Poulose
2023-01-12 15:06 ` Peter Zijlstra
2022-11-23 19:50 ` [PATCH v6 12/14] perf: cs-etm: Handle PERF_RECORD_AUX_OUTPUT_HW_ID packet Mike Leach
2022-11-23 19:50 ` [PATCH v6 13/14] coresight: events: PERF_RECORD_AUX_OUTPUT_HW_ID used for Trace ID Mike Leach
2022-11-23 19:50 ` [PATCH v6 14/14] coresight: trace-id: Add debug & test macros to Trace ID allocation Mike Leach
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