From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: patches@brar.si, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Rob Clark <robin.clark@oss.qualcomm.com>
Cc: linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v2 2/2] iommu/arm-smmu-qcom: Skip PRR setup on SM7250 GPU SMMU
Date: Fri, 23 Oct 2026 10:06:25 +0200 [thread overview]
Message-ID: <f3c13144-660d-49f6-9933-9d9cead006ee@oss.qualcomm.com> (raw)
In-Reply-To: <20261023-smmu-sm7250-v2-2-8bb881ce19f5@brar.si>
On 10/23/26 9:54 AM, Ishu Brar via B4 Relay wrote:
> From: Ishu Brar <patches@brar.si>
>
> As on SM8250, the firmware on SM7250 resets the device when the Adreno
> SMMU PRR registers are written. This happened as soon as the first
> per-process GPU pagetable was created. Do not install the PRR
> callbacks for the SM7250 GPU SMMU either.
>
> Tested on a OnePlus Nord (SM7250) with Vulkan.
>
> Signed-off-by: Ishu Brar <patches@brar.si>
> ---
Acked-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-10-23 8:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 7:54 [PATCH v2 0/2] iommu/arm-smmu-qcom: Add SM7250 support Ishu Brar via B4 Relay
2026-10-23 7:54 ` [PATCH v2 1/2] dt-bindings: arm-smmu: Document SM7250 SMMU Ishu Brar via B4 Relay
2026-10-23 7:54 ` [PATCH v2 2/2] iommu/arm-smmu-qcom: Skip PRR setup on SM7250 GPU SMMU Ishu Brar via B4 Relay
2026-10-23 8:06 ` Konrad Dybcio [this message]
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