* [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
@ 2023-01-13 4:11 Bjorn Andersson
2023-01-13 4:16 ` Konrad Dybcio
2023-01-19 19:08 ` Will Deacon
0 siblings, 2 replies; 3+ messages in thread
From: Bjorn Andersson @ 2023-01-13 4:11 UTC (permalink / raw)
To: Will Deacon, Robin Murphy, Joerg Roedel, Sai Prakash Ranjan
Cc: Dmitry Baryshkov, Konrad Dybcio, linux-arm-kernel, iommu, linux-kernel
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(+)
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" },
--
2.37.3
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
2023-01-13 4:11 [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS Bjorn Andersson
@ 2023-01-13 4:16 ` Konrad Dybcio
2023-01-19 19:08 ` Will Deacon
1 sibling, 0 replies; 3+ messages in thread
From: Konrad Dybcio @ 2023-01-13 4:16 UTC (permalink / raw)
To: Bjorn Andersson, Will Deacon, Robin Murphy, Joerg Roedel,
Sai Prakash Ranjan
Cc: Dmitry Baryshkov, linux-arm-kernel, iommu, linux-kernel
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" },
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
2023-01-13 4:11 [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS Bjorn Andersson
2023-01-13 4:16 ` Konrad Dybcio
@ 2023-01-19 19:08 ` Will Deacon
1 sibling, 0 replies; 3+ messages in thread
From: Will Deacon @ 2023-01-19 19:08 UTC (permalink / raw)
To: Sai Prakash Ranjan, Robin Murphy, Bjorn Andersson, Joerg Roedel
Cc: catalin.marinas, kernel-team, Will Deacon, Dmitry Baryshkov,
Konrad Dybcio, iommu, linux-kernel, linux-arm-kernel
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,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-01-19 19:12 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2023-01-13 4:11 [PATCH] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS Bjorn Andersson
2023-01-13 4:16 ` Konrad Dybcio
2023-01-19 19:08 ` Will Deacon
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