[PATCH v5 1/5] iommu/arm-smmu: re-enable context caching in smmu reset operation

Bibek Kumar Patro quic_bibekkum at quicinc.com
Wed Dec 20 00:08:23 PST 2023



On 12/19/2023 11:29 PM, Konrad Dybcio wrote:
> On 19.12.2023 14:59, Bibek Kumar Patro wrote:
>> Default MMU-500 reset operation disables context caching in
>> prefetch buffer. It is however expected for context banks using
>> the ACTLR register to retain their prefetch value during reset
>> and runtime suspend.
>>
>> Replace default MMU-500 reset operation with Qualcomm specific reset
>> operation which envelope the default reset operation and re-enables
>> context caching in prefetch buffer for Qualcomm SoCs.
>>
>> Suggested-by: Konrad Dybcio <konrad.dybcio at linaro.org>
> Suggested-by implies I came up with this being a solution to
> an issue.. definitely not the case!
> 

Noted, will send v6 by removing the Suggested by tag
and will address the return check as well.

Thanks,
Bibek

> Konrad



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