linux-kernel - Re: [PATCHv6 1/3] firmware: qcom_scm-64: Add atomic version of qcom_scm

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Message-ID: <5d82d0c0.1c69fb81.93841.042e@mx.google.com>
Date:   Wed, 18 Sep 2019 17:50:07 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>, Joerg Roedel <joro@...tes.org>,
        Robin Murphy <robin.murphy@....com>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Will Deacon <will@...nel.org>, bjorn.andersson@...aro.org,
        iommu@...ts.linux-foundation.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Subject: Re: [PATCHv6 1/3] firmware: qcom_scm-64: Add atomic version of qcom_scm_call

Quoting Sai Prakash Ranjan (2019-09-17 02:45:02)
> From: Vivek Gautam <vivek.gautam@...eaurora.org>
> 
> There are scnenarios where drivers are required to make a
> scm call in atomic context, such as in one of the qcom's
> arm-smmu-500 errata [1].
> 
> [1] ("https://source.codeaurora.org/quic/la/kernel/msm-4.9/
>       tree/drivers/iommu/arm-smmu.c?h=msm-4.9#n4842")
> 
> Signed-off-by: Vivek Gautam <vivek.gautam@...eaurora.org>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>