diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-17 11:47:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-17 11:47:17 -0800 |
| commit | e81dd54f62c753dd423d1a9b62481a1c599fb975 (patch) | |
| tree | ab37f1250243f750ee9ce551007179931238a5b3 /Documentation | |
| parent | 9b725d5959a1d9bb670ccdb23add45f0eaafefb5 (diff) | |
| parent | ab736ed52e3409b58a4888715e4425b6e8ac444f (diff) | |
Merge tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"Core:
- Add Frank Li as susbstem reviewer to help with reviews
New Support:
- Mediatek support for Dimensity 6300 and 9200 controller
- Qualcomm Kaanapali and Glymur GPI DMA engine
- Synopsis DW AXI Agilex5
- Renesas RZ/V2N SoC
- Atmel microchip lan9691-dma
- Tegra ADMA tegra264
Updates:
- sg_nents_for_dma() helper use in subsystem
- pm_runtime_mark_last_busy() redundant call update for subsystem
- Residue support for xilinx AXIDMA driver
- Intel Max SGL Size Support and capabilities for DSA3.0
- AXI dma larger than 32bits address support"
* tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (64 commits)
dmaengine: add Frank Li as reviewer
dt-bindings: dma: qcom,gpi: Update max interrupts lines to 16
dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
dmaengine: xilinx: xdma: use sg_nents_for_dma() helper
dmaengine: sh: use sg_nents_for_dma() helper
dmaengine: sa11x0: use sg_nents_for_dma() helper
dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper
dmaengine: qcom: adm: use sg_nents_for_dma() helper
dmaengine: pxa-dma: use sg_nents_for_dma() helper
dmaengine: lgm: use sg_nents_for_dma() helper
dmaengine: k3dma: use sg_nents_for_dma() helper
dmaengine: dw-axi-dmac: use sg_nents_for_dma() helper
dmaengine: bcm2835-dma: use sg_nents_for_dma() helper
dmaengine: axi-dmac: use sg_nents_for_dma() helper
dmaengine: altera-msgdma: use sg_nents_for_dma() helper
scatterlist: introduce sg_nents_for_dma() helper
dmaengine: idxd: Add Max SGL Size Support for DSA3.0
dmaengine: idxd: Expose DSA3.0 capabilities through sysfs
dmaengine: sh: rz-dmac: Make channel irq local
dmaengine: pl08x: Fix comment stating the difference between PL080 and PL081
...
Diffstat (limited to 'Documentation')
8 files changed, 56 insertions, 9 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd index 4a355e6747ae..08d030159f09 100644 --- a/Documentation/ABI/stable/sysfs-driver-dma-idxd +++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd @@ -136,6 +136,21 @@ Description: The last executed device administrative command's status/error. Also last configuration error overloaded. Writing to it will clear the status. +What: /sys/bus/dsa/devices/dsa<m>/dsacaps +Date: April 5, 2026 +KernelVersion: 6.20.0 +Contact: dmaengine@vger.kernel.org +Description: The DSA3 specification introduces three new capability + registers: dsacap[0-2]. User components (e.g., configuration + libraries and workload applications) require this information + to properly utilize the DSA3 features. + This includes SGL capability support, Enabling hardware-specific + optimizations, Configuring memory, etc. + The output format is '<dsacap2>,<dsacap1>,<dsacap0>' where each + DSA cap value is a 64 bit hex value. + This attribute should only be visible on DSA devices of version + 3 or later. + What: /sys/bus/dsa/devices/dsa<m>/iaa_cap Date: Sept 14, 2022 KernelVersion: 6.0.0 diff --git a/Documentation/devicetree/bindings/dma/arm-pl08x.yaml b/Documentation/devicetree/bindings/dma/arm-pl08x.yaml index ab25ae63d2c3..beab36ac583f 100644 --- a/Documentation/devicetree/bindings/dma/arm-pl08x.yaml +++ b/Documentation/devicetree/bindings/dma/arm-pl08x.yaml @@ -4,7 +4,7 @@ $id: http://devicetree.org/schemas/dma/arm-pl08x.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: ARM PrimeCells PL080 and PL081 and derivatives DMA controller +title: ARM PrimeCell PL080 and PL081 and derivatives DMA controller maintainers: - Vinod Koul <vkoul@kernel.org> diff --git a/Documentation/devicetree/bindings/dma/atmel,sama5d4-dma.yaml b/Documentation/devicetree/bindings/dma/atmel,sama5d4-dma.yaml index 73fc13b902b3..197efb19b07a 100644 --- a/Documentation/devicetree/bindings/dma/atmel,sama5d4-dma.yaml +++ b/Documentation/devicetree/bindings/dma/atmel,sama5d4-dma.yaml @@ -33,7 +33,9 @@ properties: - microchip,sam9x7-dma - const: atmel,sama5d4-dma - items: - - const: microchip,sama7d65-dma + - enum: + - microchip,lan9691-dma + - microchip,sama7d65-dma - const: microchip,sama7g5-dma "#dma-cells": diff --git a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml index dab468a88942..3708518fe7fc 100644 --- a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml +++ b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml @@ -7,6 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# title: MediaTek UART APDMA controller maintainers: + - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> - Long Cheng <long.cheng@mediatek.com> description: | @@ -23,11 +24,29 @@ properties: - enum: - mediatek,mt2712-uart-dma - mediatek,mt6795-uart-dma + - mediatek,mt8173-uart-dma + - mediatek,mt8183-uart-dma - mediatek,mt8365-uart-dma - mediatek,mt8516-uart-dma - const: mediatek,mt6577-uart-dma + - items: + - enum: + - mediatek,mt7988-uart-dma + - mediatek,mt8186-uart-dma + - mediatek,mt8188-uart-dma + - mediatek,mt8192-uart-dma + - mediatek,mt8195-uart-dma + - const: mediatek,mt6835-uart-dma + - items: + - enum: + - mediatek,mt6991-uart-dma + - mediatek,mt8196-uart-dma + - const: mediatek,mt6985-uart-dma - enum: - mediatek,mt6577-uart-dma + - mediatek,mt6795-uart-dma + - mediatek,mt6835-uart-dma + - mediatek,mt6985-uart-dma reg: minItems: 1 @@ -58,6 +77,7 @@ properties: mediatek,dma-33bits: type: boolean + deprecated: true description: Enable 33-bits UART APDMA support required: diff --git a/Documentation/devicetree/bindings/dma/qcom,gpi.yaml b/Documentation/devicetree/bindings/dma/qcom,gpi.yaml index bbe4da2a1105..fde1df035ad1 100644 --- a/Documentation/devicetree/bindings/dma/qcom,gpi.yaml +++ b/Documentation/devicetree/bindings/dma/qcom,gpi.yaml @@ -24,6 +24,8 @@ properties: - qcom,sm6350-gpi-dma - items: - enum: + - qcom,glymur-gpi-dma + - qcom,kaanapali-gpi-dma - qcom,milos-gpi-dma - qcom,qcm2290-gpi-dma - qcom,qcs8300-gpi-dma @@ -58,7 +60,7 @@ properties: description: Interrupt lines for each GPI instance minItems: 1 - maxItems: 13 + maxItems: 16 "#dma-cells": const: 3 diff --git a/Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml b/Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml index f891cfcc48c7..d137b9cbaee9 100644 --- a/Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml @@ -24,6 +24,7 @@ properties: - items: - enum: - renesas,r9a09g047-dmac # RZ/G3E + - renesas,r9a09g056-dmac # RZ/V2N - const: renesas,r9a09g057-dmac - const: renesas,r9a09g057-dmac # RZ/V2H(P) diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml index a393a33c8908..216cda21c538 100644 --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml @@ -17,11 +17,15 @@ allOf: properties: compatible: - enum: - - snps,axi-dma-1.01a - - intel,kmb-axi-dma - - starfive,jh7110-axi-dma - - starfive,jh8100-axi-dma + oneOf: + - enum: + - snps,axi-dma-1.01a + - intel,kmb-axi-dma + - starfive,jh7110-axi-dma + - starfive,jh8100-axi-dma + - items: + - const: altr,agilex5-axi-dma + - const: snps,axi-dma-1.01a reg: minItems: 1 diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst index 1594598b3317..f4ed98f701c9 100644 --- a/Documentation/driver-api/dmaengine/provider.rst +++ b/Documentation/driver-api/dmaengine/provider.rst @@ -411,7 +411,7 @@ supported. - This structure can be initialized using the function ``dma_async_tx_descriptor_init``. - - You'll also need to set two fields in this structure: + - You'll also need to set following fields in this structure: - flags: TODO: Can it be modified by the driver itself, or @@ -421,6 +421,9 @@ supported. that is supposed to push the current transaction descriptor to a pending queue, waiting for issue_pending to be called. + - phys: Physical address of the descriptor which is used later by + the dma engine to read the descriptor and initiate transfer. + - In this structure the function pointer callback_result can be initialized in order for the submitter to be notified that a transaction has completed. In the earlier code the function pointer |
