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Date:   Thu, 26 May 2022 10:59:34 +0100
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Subject: Re: [PATCH v2] coresight: etm4x: Add Support for HiSilicon ETM device
To:     Alexei Budankov <abudankov@huawei.com>,
        "liuqi (BA)" <liuqi115@huawei.com>, Linuxarm <linuxarm@huawei.com>,
        gregkh@linuxfoundation.org, mathieu.poirier@linaro.org,
        mike.leach@linaro.org
Cc:     linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Alexey Budankov <alexey.budankov@huawei.com>,
        Anshuman Khandual <anshuman.khandual@arm.com>
References: <1597323562-3706-1-git-send-email-liuqi115@huawei.com>
 <853b6d52-da86-1c06-3604-3085ece331a4@huawei.com>
 <5dd1bd83-232a-07e4-8fde-e4f6cd0e5b8c@huawei.com>
 <93b92859-2229-8766-09d2-df16e1ebd4e8@huawei.com>
 <50c25ce8-15bc-80a8-59dc-a20571a6460a@huawei.com>
 <13ee708e-17a7-7e0d-7d24-827c3786f007@huawei.com>
From:   Suzuki K Poulose <suzuki.poulose@arm.com>
In-Reply-To: <13ee708e-17a7-7e0d-7d24-827c3786f007@huawei.com>
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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
the case, we do not have the support for ETM with system instructions
at the moment. Anshuman is currently working on addressing
this.

Cheers
Suzuki

> 
> Thanks, > Alexei
>