linux-kernel - Re: [PATCH v2] coresight: etm4x: Add Support for HiSilicon ETM device

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Message-ID: <378cead0-7d2e-2fcd-6113-2059b9446bbc@huawei.com>
Date:   Thu, 26 May 2022 14:43:32 +0300
From:   Alexei Budankov <abudankov@...wei.com>
To:     Suzuki K Poulose <suzuki.poulose@....com>,
        "liuqi (BA)" <liuqi115@...wei.com>, Linuxarm <linuxarm@...wei.com>,
        <gregkh@...uxfoundation.org>, <mathieu.poirier@...aro.org>,
        <mike.leach@...aro.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Alexey Budankov <alexey.budankov@...wei.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        <abudankov@...wei.com>
Subject: Re: [PATCH v2] coresight: etm4x: Add Support for HiSilicon ETM device

Hi Suzuki,

On 26.05.2022 12:59, Suzuki K Poulose wrote:
> Hi
> 
> 
> 
> On 26/05/2022 09:00, Alexei Budankov wrote:
>> Hi,
>>
>> On 26.05.2022 10:47, liuqi (BA) wrote:
>>>
>>>
>>> On 2022/5/26 15:23, Alexei Budankov wrote:
>>>> Hi Qi,
>>>>
>> <SNIP>
>>>>
>>>> Look like our server firmware should be upgraded, right?
>>>
>>> Yes, seems firmware should be upgraded first, and then you could test ETM device :)
>>
>> I would appreciate if you could share some links to upgrade bits and docs, if possible,
>> so we could use it to perform the upgrade.
> 
> Does your system use ACPI based firmware ? If that is

Not sure about it yet.

> the case, we do not have the support for ETM with system instructions
> at the moment. Anshuman is currently working on addressing
> this.

Thanks for clarification. Good to know.

Thanks,
Alexei

> 
> Cheers
> Suzuki
> 
>>
>> Thanks, > Alexei
>>
> 
> .