From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Rob Clark <robin.clark@oss.qualcomm.com>, iommu@lists.linux.dev
Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
freedreno@lists.freedesktop.org,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] iommu/msm: Use identity domain for GPU and display
Date: Fri, 30 Oct 2026 09:35:55 +0100 [thread overview]
Message-ID: <dc2c51b8-41cc-4abd-b52f-ef2072593d1e@oss.qualcomm.com> (raw)
In-Reply-To: <20261029212344.346069-3-robin.clark@oss.qualcomm.com>
On 10/29/26 10:23 PM, Rob Clark wrote:
> Similar to commit 0e764a01015d ("iommu/arm-smmu: Allow client devices to
> select direct mapping") for arm-smmu-qcom, match GPU and display compat
> strings to pick identity domain time.
>
> The drm/msm driver attaches it's own domain, which it manages directly,
> so we don't want an iommu managed domain interfering.
>
> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-10-30 8:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-29 21:23 [PATCH 0/2] iommu/qcom+msm: Use identity domain for display/GPU Rob Clark
2026-10-29 21:23 ` [PATCH 1/2] iommu/qcom: Use identity domain for GPU and display Rob Clark
2026-10-30 8:35 ` Konrad Dybcio
2026-10-30 12:35 ` Rob Clark
2026-10-29 21:23 ` [PATCH 2/2] iommu/msm: " Rob Clark
2026-10-30 8:35 ` Konrad Dybcio [this message]
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