kernel/linux.git/drivers/dma/Kconfig, branch v6.12.80

dmaengine: Add dma router for pl08x in LPC32XX SoC

2024-08-29T17:24:11+00:00

LPC32XX connects few of its peripherals to pl08x DMA thru a multiplexer, this driver allows to route a signal request line thru the multiplexer for given peripheral. Signed-off-by: Piotr Wojtaszczyk Link: https://lore.kernel.org/r/20240628152022.274405-1-piotr.wojtaszczyk@timesys.com Signed-off-by: Vinod Koul

dmaengine: Loongson1: Add Loongson-1 APB DMA driver

2024-08-29T17:17:24+00:00

Add APB DMA driver for Loongson-1 SoCs. Reviewed-by: Jiaxun Yang Signed-off-by: Keguang Zhang Link: https://lore.kernel.org/r/20240809-loongson1-dma-v12-2-d9469a4a6b85@gmail.com Signed-off-by: Vinod Koul

dmaengine: amd: qdma: Add AMD QDMA driver

2024-08-28T18:04:13+00:00

Adds driver to enable PCIe board which uses AMD QDMA (the Queue-based Direct Memory Access) subsystem. For example, Xilinx Alveo V70 AI Accelerator devices. https://www.xilinx.com/applications/data-center/v70.html The QDMA subsystem is used in conjunction with the PCI Express IP block to provide high performance data transfer between host memory and the card's DMA subsystem. +-------+ +-------+ +-----------+ PCIe | | | | | | Tx/Rx | | | | AXI | | <=======> | PCIE | <===> | QDMA | <====>| User Logic| | | | | | | +-------+ +-------+ +-----------+ The primary mechanism to transfer data using the QDMA is for the QDMA engine to operate on instructions (descriptors) provided by the host operating system. Using the descriptors, the QDMA can move data in both the Host to Card (H2C) direction, or the Card to Host (C2H) direction. The QDMA provides a per-queue basis option whether DMA traffic goes to an AXI4 memory map (MM) interface or to an AXI4-Stream interface. The hardware detail is provided by https://docs.xilinx.com/r/en-US/pg302-qdma Implements dmaengine APIs to support MM DMA transfers. - probe the available DMA channels - use dma_slave_map for channel lookup - use virtual channel to manage dmaengine tx descriptors - implement device_prep_slave_sg callback to handle host scatter gather list Signed-off-by: Nishad Saraf Signed-off-by: Lizhi Hou Link: https://lore.kernel.org/r/20240819211948.688786-2-lizhi.hou@amd.com Signed-off-by: Vinod Koul

Merge tag 'dmaengine-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2024-07-24T19:34:47+00:00

Pull dmaengine updates from Vinod Koul: "New support: - New dmaengine_prep_peripheral_dma_vec() to support transfers using dma vectors and documentation and user in AXI dma - STMicro STM32 DMA3 support and new capabilities of cyclic dma Updates: - Yaml conversion for Freescale imx dma and qdma bindings, sprd sc9860 dma binding - Altera msgdma updates for descriptor management" * tag 'dmaengine-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (35 commits) dt-bindings: fsl-qdma: fix interrupts 'if' check logic dt-bindings: dma: sprd,sc9860-dma: convert to YAML dmaengine: fsl-dpaa2-qdma: add missing MODULE_DESCRIPTION() macro dmaengine: ti: add missing MODULE_DESCRIPTION() macros dmaengine: ti: cppi41: add missing MODULE_DESCRIPTION() macro dmaengine: virt-dma: add missing MODULE_DESCRIPTION() macro dmaengine: ti: k3-udma: Fix BCHAN count with UHC and HC channels dmaengine: sh: rz-dmac: Fix lockdep assert warning dmaengine: qcom: gpi: clean up the IRQ disable/enable in gpi_reset_chan() dmaengine: fsl-edma: change the memory access from local into remote mode in i.MX 8QM dmaengine: qcom: gpi: remove unused struct 'reg_info' dmaengine: moxart-dma: remove unused struct 'moxart_filter_data' dt-bindings: fsl-qdma: Convert to yaml format dmaengine: fsl-edma: remove redundant "idle" field from fsl_chan dmaengine: fsl-edma: request per-channel IRQ only when channel is allocated dmaengine: stm32-dma3: defer channel registration to specify channel name dmaengine: add channel device name to channel registration dmaengine: stm32-dma3: improve residue granularity dmaengine: stm32-dma3: add device_pause and device_resume ops dmaengine: stm32-dma3: add DMA_MEMCPY capability ...

dmaengine: stm32: New directory for STM32 DMA controllers drivers

2024-06-11T18:25:33+00:00

Gather the STM32 DMA controllers under drivers/dma/stm32/ Signed-off-by: Amelie Delaunay Link: https://lore.kernel.org/r/20240531150712.2503554-3-amelie.delaunay@foss.st.com Signed-off-by: Vinod Koul

dmaengine: fsl-edma: avoid linking both modules

2024-06-11T17:59:23+00:00

Kbuild does not support having a source file compiled multiple times and linked into distinct modules, or built-in and modular at the same time. For fs-edma, there are two common components that are linked into the fsl-edma.ko for Arm and PowerPC, plus the mcf-edma.ko module on Coldfire. This violates the rule for compile-testing: scripts/Makefile.build:236: drivers/dma/Makefile: fsl-edma-common.o is added to multiple modules: fsl-edma mcf-edma scripts/Makefile.build:236: drivers/dma/Makefile: fsl-edma-trace.o is added to multiple modules: fsl-edma mcf-edma I tried splitting out the common parts into a separate modules, but that adds back the complexity that a cleanup patch removed, and it gets harder with the addition of the tracepoints. As a minimal workaround, address it at the Kconfig level, by disallowing the broken configurations. Link: https://lore.kernel.org/lkml/20240110232255.1099757-1-arnd@kernel.org/ Fixes: 66aac8ea0a6c ("dmaengine: fsl-edma: clean up EXPORT_SYMBOL_GPL in fsl-edma-common.c") Signed-off-by: Arnd Bergmann Acked-by: Peng Fan Link: https://lore.kernel.org/r/20240528115440.2965975-1-arnd@kernel.org Signed-off-by: Vinod Koul

dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA

2024-01-22T11:08:11+00:00

Update the architecture dependency to be the generic Tegra because the driver works on the four latest Tegra generations not just T210, if you build a kernel with a specific ARCH_TEGRA_xxx_SOC option that excludes 210 you don't get this driver. Fixes: 433de642a76c9 ("dmaengine: tegra210-adma: add support for Tegra186/Tegra194") Signed-off-by: Peter Robinson Cc: Jon Hunter Cc: Thierry Reding Cc: Sameer Pujar Cc: Laxman Dewangan Reviewed-by: Jon Hunter Link: https://lore.kernel.org/r/20240112093310.329642-2-pbrobinson@gmail.com Signed-off-by: Vinod Koul

dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller

2023-12-21T16:05:13+00:00

The Loongson LS2X APB DMA controller is available on Loongson-2K chips. It is a single-channel, configurable DMA controller IP core based on the AXI bus, whose main function is to integrate DMA functionality on a chip dedicated to carrying data between memory and peripherals in APB bus (e.g. nand). Signed-off-by: Binbin Zhou Signed-off-by: Yingkun Meng Link: https://lore.kernel.org/r/8df2a0199434fba3535831082966c2442ecf1cae.1702365725.git.zhoubinbin@loongson.cn Signed-off-by: Vinod Koul

dmaengine: hisi: Simplify preconditions of CONFIG_K3_DMA

2023-09-28T10:49:23+00:00

Commit e39a2329cfb09 ("Kconfig: Allow k3dma driver to be selected for more then HISI3xx platforms") expanded the "depends on" line of K3_DMA from "ARCH_HI3xxx" to "ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST". However, ARCH_HI3xxx implies ARCH_HISI, so it's unnecessary to list both. Instead, just list ARCH_HISI, which covers all HiSilicon platforms. Signed-off-by: Jonathan Neuschäfer Link: https://lore.kernel.org/r/20230924152332.2254305-1-j.neuschaefer@gmx.net Signed-off-by: Vinod Koul

Merge tag 'dmaengine-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2023-09-03T17:49:42+00:00

Pull dmaengine updates from Vinod Koul: "New controller support and updates to drivers. New support: - Qualcomm SM6115 and QCM2290 dmaengine support - at_xdma support for microchip,sam9x7 controller Updates: - idxd updates for wq simplification and ats knob updates - fsl edma updates for v3 support - Xilinx AXI4-Stream control support - Yaml conversion for bcm dma binding" * tag 'dmaengine-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (53 commits) dmaengine: fsl-edma: integrate v3 support dt-bindings: fsl-dma: fsl-edma: add edma3 compatible string dmaengine: fsl-edma: move tcd into struct fsl_dma_chan dmaengine: fsl-edma: refactor chan_name setup and safety dmaengine: fsl-edma: move clearing of register interrupt into setup_irq function dmaengine: fsl-edma: refactor using devm_clk_get_enabled dmaengine: fsl-edma: simply ATTR_DSIZE and ATTR_SSIZE by using ffs() dmaengine: fsl-edma: move common IRQ handler to common.c dmaengine: fsl-edma: Remove enum edma_version dmaengine: fsl-edma: transition from bool fields to bitmask flags in drvdata dmaengine: fsl-edma: clean up EXPORT_SYMBOL_GPL in fsl-edma-common.c dmaengine: fsl-edma: fix build error when arch is s390 dmaengine: idxd: Fix issues with PRS disable sysfs knob dmaengine: idxd: Allow ATS disable update only for configurable devices dmaengine: xilinx_dma: Program interrupt delay timeout dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase dmaengine: xilinx_dma: Freeup active list based on descriptor completion bit dmaengine: xilinx_dma: Increase AXI DMA transaction segment count dmaengine: xilinx_dma: Pass AXI4-Stream control words to dma client dt-bindings: dmaengine: xilinx_dma: Add xlnx,irq-delay property ...