From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
mike.leach@linaro.org, leo.yan@linaro.org,
anshuman.khandual@arm.com, Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH v5 05/19] arm64: Add support for trace synchronization barrier
Date: Wed, 24 Mar 2021 15:51:14 +0000 [thread overview]
Message-ID: <1b5e5bb2-b89f-fa35-0a8b-8c5476cb9ff6@arm.com> (raw)
In-Reply-To: <875z1gk6fo.wl-maz@kernel.org>
On 24/03/2021 13:49, Marc Zyngier wrote:
> On Wed, 24 Mar 2021 09:39:13 +0000,
> Suzuki K Poulose <suzuki.poulose@arm.com> wrote:
>>
>> On 23/03/2021 18:21, Catalin Marinas wrote:
>>> Hi Suzuki?
>>>
>>> On Tue, Mar 23, 2021 at 12:06:33PM +0000, Suzuki K Poulose wrote:
>>>> tsb csync synchronizes the trace operation of instructions.
>>>> The instruction is a nop when FEAT_TRF is not implemented.
>>>>
>>>> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
>>>> Cc: Mike Leach <mike.leach@linaro.org>
>>>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>>>> Cc: Will Deacon <will.deacon@arm.com>
>>>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>>>
>>> How do you plan to merge these patches? If they go via the coresight
>>> tree:
>>>
>>
>> Ideally all of this should go via the CoreSight tree to have the
>> dependencies solved at one place. But there are some issues :
>>
>> If this makes to 5.13 queue for CoreSight,
>>
>> 1) CoreSight next is based on rc2 at the moment and we have fixes gone
>> into rc3 and later, which this series will depend on. (We could move
>> the next tree forward to a later rc to solve this).
>>
>> 2) There could be conflicts with the kvmarm tree for the KVM host
>> changes (That has dependency on the TRBE definitions patch).
>>
>> If it doesn't make to 5.13 queue, it would be good to have this patch,
>> the TRBE defintions and the KVM host patches queued for 5.13 (not sure
>> if this is acceptable) and we could rebase the CoreSight changes on 5.13
>> and push it to next release.
>>
>> I am open for other suggestions.
>>
>> Marc, Mathieu,
>>
>> Thoughts ?
>
> I was planning to take the first two patches in 5.12 as fixes (they
> are queued already, and would hopefully land in -rc5). If that doesn't
> fit with the plan, please let me know ASAP.
Marc,
I think it would be better to hold on pushing those patches until we
have a clarity on how things will go.
Sorry for the confusion.
Kind regards
Suzuki
>
> Thanks,
>
> M.
>
next prev parent reply other threads:[~2021-03-24 15:51 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-23 12:06 [PATCH v5 00/19] coresight: Add support for ETE and TRBE Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 01/19] [Queued] kvm: arm64: Hide system instruction access to Trace registers Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 02/19] [Queued] kvm: arm64: Disable guest access to trace filter controls Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 03/19] perf: aux: Add flags for the buffer format Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 04/19] perf: aux: Add CoreSight PMU buffer formats Suzuki K Poulose
2021-03-29 16:56 ` Mathieu Poirier
2021-04-19 7:46 ` Peter Zijlstra
2021-03-23 12:06 ` [PATCH v5 05/19] arm64: Add support for trace synchronization barrier Suzuki K Poulose
2021-03-23 18:21 ` Catalin Marinas
2021-03-24 9:39 ` Suzuki K Poulose
2021-03-24 13:49 ` Marc Zyngier
2021-03-24 15:51 ` Suzuki K Poulose [this message]
2021-03-24 16:16 ` Marc Zyngier
2021-03-24 16:25 ` Suzuki K Poulose
2021-03-24 16:30 ` Marc Zyngier
2021-03-24 17:06 ` Suzuki K Poulose
2021-03-24 17:19 ` Catalin Marinas
2021-03-24 17:40 ` Marc Zyngier
2021-03-26 16:31 ` Mathieu Poirier
2021-03-23 12:06 ` [PATCH v5 06/19] arm64: Add TRBE definitions Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 07/19] arm64: kvm: Enable access to TRBE support for host Suzuki K Poulose
2021-03-26 16:55 ` Mathieu Poirier
2021-03-30 10:16 ` Marc Zyngier
2021-03-30 10:38 ` Suzuki K Poulose
2021-03-30 15:23 ` Mathieu Poirier
2021-03-30 15:34 ` Marc Zyngier
2021-03-30 15:35 ` Greg KH
2021-03-30 16:33 ` Mathieu Poirier
2021-03-30 16:47 ` Greg KH
2021-03-30 16:51 ` Mathieu Poirier
2021-03-30 10:12 ` Marc Zyngier
2021-03-30 11:12 ` Suzuki K Poulose
2021-03-30 12:15 ` Marc Zyngier
2021-03-30 13:34 ` Suzuki K Poulose
2021-03-30 14:00 ` Marc Zyngier
2021-03-31 15:28 ` Alexandru Elisei
2021-03-31 15:37 ` Marc Zyngier
2021-03-23 12:06 ` [PATCH v5 08/19] coresight: etm4x: Move ETM to prohibited region for disable Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 09/19] coresight: etm-perf: Allow an event to use different sinks Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 10/19] coresight: Do not scan for graph if none is present Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 11/19] coresight: etm4x: Add support for PE OS lock Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 12/19] coresight: ete: Add support for ETE tracing Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 13/19] dts: bindings: Document device tree bindings for ETE Suzuki K Poulose
2021-03-23 22:46 ` Rob Herring
2021-03-23 12:06 ` [PATCH v5 14/19] coresight: etm-perf: Handle stale output handles Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 15/19] coresight: core: Add support for dedicated percpu sinks Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 16/19] coresight: sink: Add TRBE driver Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 17/19] Documentation: coresight: trbe: Sysfs ABI description Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 18/19] Documentation: trace: Add documentation for TRBE Suzuki K Poulose
2021-03-23 12:06 ` [PATCH v5 19/19] dts: bindings: Document device tree bindings for Arm TRBE Suzuki K Poulose
2021-03-23 16:33 ` (subset) [PATCH v5 00/19] coresight: Add support for ETE and TRBE Marc Zyngier
2021-03-23 16:34 ` Marc Zyngier
2021-03-23 17:05 ` Suzuki K Poulose
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