From: Konrad Dybcio <konradybcio@kernel.org>
To: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org
Subject: Re: [PATCH RFT 1/2] firmware: qcom: scm: Introduce CP_SMMU_APERTURE_ID
Date: Thu, 3 Oct 2024 18:48:13 +0200 [thread overview]
Message-ID: <c30baaca-beaf-485c-88b4-984febf06519@kernel.org> (raw)
In-Reply-To: <20241002-adreno-smmu-aparture-v1-1-e9a63c9ccef5@oss.qualcomm.com>
On 3.10.2024 5:01 AM, Bjorn Andersson wrote:
> The QCOM_SCM_SVC_MP service provides QCOM_SCM_MP_CP_SMMU_APERTURE_ID,
> which is used to trigger the mapping of register banks into the SMMU
> context for per-processes page tables to function (in case this isn't
> statically setup by firmware).
>
> This is necessary on e.g. QCS6490 Rb3Gen2, in order to avoid "CP | AHB
> bus error"-errors from the GPU.
>
> Introduce a function to allow the msm driver to invoke this call.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
> ---
Tested-by: Konrad Dybcio <konradybcio@kernel.org> # FP5
Reviewed-by: Konrad Dybcio <konradybcio@kernel.org>
Konrad
next prev parent reply other threads:[~2024-10-03 16:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-03 3:01 [PATCH RFT 0/2] drm/msm/adreno: Setup SMMU aparture Bjorn Andersson
2024-10-03 3:01 ` [PATCH RFT 1/2] firmware: qcom: scm: Introduce CP_SMMU_APERTURE_ID Bjorn Andersson
2024-10-03 16:48 ` Konrad Dybcio [this message]
2024-10-04 22:30 ` Jessica Zhang
2024-10-03 3:01 ` [PATCH RFT 2/2] drm/msm/adreno: Setup SMMU aparture for per-process page table Bjorn Andersson
2024-10-03 16:55 ` Konrad Dybcio
2024-10-04 22:35 ` Jessica Zhang
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