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 2/2] drm/msm/adreno: Setup SMMU aparture for per-process page table
Date: Thu, 3 Oct 2024 18:55:52 +0200 [thread overview]
Message-ID: <b084d738-19dd-469a-8ac8-e72c76e0997c@kernel.org> (raw)
In-Reply-To: <20241002-adreno-smmu-aparture-v1-2-e9a63c9ccef5@oss.qualcomm.com>
On 3.10.2024 5:01 AM, Bjorn Andersson wrote:
> Support for per-process page tables requires the SMMU aparture to be
> setup such that the GPU can make updates with the SMMU. On some targets
> this is done statically in firmware, on others it's expected to be
> requested in runtime by the driver, through a SCM call.
>
> One place where configuration is expected to be done dynamically is the
> QCS6490 rb3gen2.
>
> The downstream driver does this unconditioanlly on any A6xx and newer,
> so follow suite and make the call.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
> ---
Not all A6xx targets support PPPT (e.g. A619 on SM6375 - but A619 on SM6350
does..). We already print some error messages when that's the case, I think
this may add one more.
Nonetheless, I think that sticks to the accepted status quo where lacking
PPPT is a bug, so..
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 16:55 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
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 [this message]
2024-10-04 22:35 ` Jessica Zhang
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