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From: Bjorn Andersson <quic_bjorande@quicinc.com>
To: Will Deacon <will@kernel.org>, Robin Murphy <robin.murphy@arm.com>,
"Joerg Roedel" <joro@8bytes.org>,
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CC: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
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Subject: [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
Date: Thu, 12 Jan 2023 20:11:04 -0800
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| Series |
iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
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Commit Message
Bjorn Andersson
Jan. 13, 2023, 4:11 a.m. UTC
The Qualcomm display driver installs a translation domain once it has
mapped a framebuffer. Use the identity domain for this device on
SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer
while this is being set up.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
---
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
1 file changed, 1 insertion(+)
Comments
On 13.01.2023 05:11, Bjorn Andersson wrote: > The Qualcomm display driver installs a translation domain once it has > mapped a framebuffer. Use the identity domain for this device on > SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer > while this is being set up. > > Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Konrad > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > index 4c53824582d4..cebc10c0492d 100644 > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > @@ -250,6 +250,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { > { .compatible = "qcom,sc7280-mdss" }, > { .compatible = "qcom,sc7280-mss-pil" }, > { .compatible = "qcom,sc8180x-mdss" }, > + { .compatible = "qcom,sc8280xp-mdss" }, > { .compatible = "qcom,sm8250-mdss" }, > { .compatible = "qcom,sdm845-mdss" }, > { .compatible = "qcom,sdm845-mss-pil" },
On Thu, 12 Jan 2023 20:11:04 -0800, Bjorn Andersson wrote: > The Qualcomm display driver installs a translation domain once it has > mapped a framebuffer. Use the identity domain for this device on > SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer > while this is being set up. > > Applied to will (for-joerg/arm-smmu/updates), thanks! [1/1] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS https://git.kernel.org/will/c/1d6316e50572 Cheers,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 4c53824582d4..cebc10c0492d 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -250,6 +250,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { { .compatible = "qcom,sc7280-mdss" }, { .compatible = "qcom,sc7280-mss-pil" }, { .compatible = "qcom,sc8180x-mdss" }, + { .compatible = "qcom,sc8280xp-mdss" }, { .compatible = "qcom,sm8250-mdss" }, { .compatible = "qcom,sdm845-mdss" }, { .compatible = "qcom,sdm845-mss-pil" },