From: Krzysztof Kozlowski <krzk@kernel.org>
To: Vikash Garodia <vikash.garodia@oss.qualcomm.com>,
Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Bryan O'Donoghue <bod@kernel.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
Stephan Gerhold <stephan.gerhold@linaro.org>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Abel Vesa <abelvesa@kernel.org>
Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
iommu@lists.linux.dev,
Vishnu Reddy <busanna.reddy@oss.qualcomm.com>
Subject: Re: [PATCH v4 03/13] dt-bindings: media: qcom,sm8750-iris: Add context bank subnodes
Date: Fri, 25 Sep 2026 20:58:54 +0200 [thread overview]
Message-ID: <ef172101-c277-47b4-9141-54e2ed756430@kernel.org> (raw)
In-Reply-To: <20260914-vpu_iommu_iova_handling-v4-3-9b9074a73c41@oss.qualcomm.com>
On 13/09/2026 20:49, Vikash Garodia wrote:
> The VPU issues DMA through several SMMU streams, and the hardware does
> not give every stream the same addressable range. The non-pixel stream
> cannot address the low 600MB of IOVA space, while the pixel stream can
> address the full range:
> +-----------------------------------------------------------+
> | non-pixel stream addressable range (600 MB - 3.5 GB) |
> | 0x25800000 - 0xe0000000 |
> +-----------------------------------------------------------+
> | pixel stream addressable range (0 - 3.5 GB) |
> | 0x00000000 - 0xe0000000 |
> +-----------------------------------------------------------+
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-09-25 18:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-13 18:49 [PATCH v4 00/13] media: iris: Migrate iommus to iris sub nodes Vikash Garodia
2026-09-13 18:49 ` [PATCH v4 01/13] dt-bindings: media: qcom,venus: Add context bank subnodes to common schema Vikash Garodia
2026-09-25 18:47 ` Krzysztof Kozlowski
2026-09-13 18:49 ` [PATCH v4 02/13] dt-bindings: media: qcom,sm8550-iris: Add context bank subnodes Vikash Garodia
2026-09-13 19:03 ` sashiko-bot
2026-09-13 19:10 ` Vikash Garodia
2026-09-25 18:59 ` Krzysztof Kozlowski
2026-09-13 18:49 ` [PATCH v4 03/13] dt-bindings: media: qcom,sm8750-iris: " Vikash Garodia
2026-09-25 18:58 ` Krzysztof Kozlowski [this message]
2026-09-13 18:49 ` [PATCH v4 04/13] iommu: of_iommu: Add support for "iommu-ranges" on a device node Vikash Garodia
2026-09-13 19:07 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 05/13] media: iris: Add non-pixel and pixel context bank devices Vikash Garodia
2026-09-13 19:06 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 06/13] media: iris: Route buffers to the matching context bank device Vikash Garodia
2026-09-13 19:13 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 07/13] media: iris: Skip DMA mask setup when the core device has no IOMMU Vikash Garodia
2026-09-13 19:03 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 08/13] arm64: dts: qcom: hamoa: Add Iris context bank subnodes Vikash Garodia
2026-09-13 19:08 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 09/13] arm64: dts: qcom: sm8550: " Vikash Garodia
2026-09-13 19:05 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 10/13] arm64: dts: qcom: lemans: " Vikash Garodia
2026-09-13 18:49 ` [PATCH v4 11/13] arm64: dts: qcom: monaco: " Vikash Garodia
2026-09-13 19:15 ` sashiko-bot
2026-09-13 18:49 ` [PATCH v4 12/13] arm64: dts: qcom: sm8650: " Vikash Garodia
2026-09-13 18:49 ` [PATCH v4 13/13] arm64: dts: qcom: sm8750: " Vikash Garodia
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