PENDING: media: iris: add context bank support via iommu-map#918
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vgarodia merged 4 commits intoqualcomm-linux:tech/mm/videofrom Apr 10, 2026
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arch/arm64/boot/dts/qcom/sm8550.dtsi
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| iommus = <&apps_smmu 0x1940 0>, | ||
| <&apps_smmu 0x1947 0>; | ||
| iommu-map = <IRIS_NON_PIXEL_VCODEC &apps_smmu 0x1940 0x0 0x1>, | ||
| <IRIS_PIXEL &apps_smmu 0x1947 0x0 0x1>; |
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Make the change for hamoa.dtsi as well
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Wire up sm8550_init_cb_devs() in iris_platform_gen2.c to register the two child context-bank devices (iris_non_pixel and iris_pixel) using iris_create_cb_dev(), and hook it into the sm8550_data platform data via the .init_cb_devs callback. Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com> Signed-off-by: Gourav Kumar <gouravk@qti.qualcomm.com>
Different stream IDs from VPU would be associated to one of these CB. Multiple CBs are needed to increase the IOVA for the video usecases like higher concurrent sessions. Co-developed-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Depending on the buffer type (input, output and internal), associated context bank is selected, if available. Fallback to parent device for backward compatibility. Co-developed-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
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…ion IDs Add a dt-bindings header include/dt-bindings/media/qcom,sm8550-iris.h defining IRIS_NON_PIXEL_VCODEC (0) and IRIS_PIXEL (1) function IDs used to identify the non-pixel and pixel context bank SMMU stream mappings via iommu-map. Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com> Signed-off-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com> Signed-off-by: Gourav Kumar <gouravk@qti.qualcomm.com>
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This was referenced Apr 10, 2026
vgarodia
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This series adds context bank support to the Qualcomm iris video codec
driver by migrating from the legacy 'iommus' DT property to 'iommu-map',
enabling per-context-bank IOMMU domain management.
Exception JIRA: https://jira-dc.qualcomm.com/jira/browse/QLIJIRA-115
CRs-Fixed: 4496236