pm24.git/drivers/dma, branch rust-fixes-6.12

Merge tag 'dmaengine-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2024-09-23T21:08:08Z

Pull dmaengine updates from Vinod Koul: "Unusually, more new driver and device support than updates. Couple of new device support, AMD, Rcar, Intel and New drivers in Freescale, Loonsoon, AMD and LPC32XX with DT conversion and mode updates etc. New support: - Support for AMD Versal Gen 2 DMA IP - Rcar RZ/G3S SoC dma controller - Support for Intel Diamond Rapids and Granite Rapids-D dma controllers - Support for Freescale ls1021a-qdma controller - New driver for Loongson-1 APB DMA - New driver for AMD QDMA - Pl08x in LPC32XX router dma driver Updates: - Support for dpdma cyclic dma mode - XML conversion for marvell xor dma bindings - Dma clocks documentation for imx dma" * tag 'dmaengine-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (24 commits) dmaengine: loongson1-apb-dma: Fix the build warning caused by the size of pdev_irqname dmaengine: Fix spelling mistakes dmaengine: Add dma router for pl08x in LPC32XX SoC dmaengine: fsl-edma: add edma src ID check at request channel dmaengine: fsl-edma: change to guard(mutex) within fsl_edma3_xlate() dmaengine: avoid non-constant format string dmaengine: imx-dma: Remove i.MX21 support dt-bindings: dma: fsl,imx-dma: Document the DMA clocks dmaengine: Loongson1: Add Loongson-1 APB DMA driver dt-bindings: dma: Add Loongson-1 APB DMA dmaengine: zynqmp_dma: Add support for AMD Versal Gen 2 DMA IP dt-bindings: dmaengine: zynqmp_dma: Add a new compatible string dmaengine: idxd: Add new DSA and IAA device IDs for Diamond Rapids platform dmaengine: idxd: Add a new DSA device ID for Granite Rapids-D platform dmaengine: ti: k3-udma: Remove unused declarations dmaengine: amd: qdma: Add AMD QDMA driver dmaengine: xilinx: dpdma: Add support for cyclic dma mode dma: ipu: Remove include/linux/dma/ipu-dma.h dt-bindings: dma: fsl-mxs-dma: Add compatible string "fsl,imx8qxp-dma-apbh" dt-bindings: fsl-qdma: allow compatible string fallback to fsl,ls1021a-qdma ...

Merge tag 'dma-mapping-6.12-2024-09-19' of git://git.infradead.org/users/hch/dma-mapping

2024-09-19T09:12:49Z

Pull dma-mapping updates from Christoph Hellwig: - support DMA zones for arm64 systems where memory starts at > 4GB (Baruch Siach, Catalin Marinas) - support direct calls into dma-iommu and thus obsolete dma_map_ops for many common configurations (Leon Romanovsky) - add DMA-API tracing (Sean Anderson) - remove the not very useful return value from various dma_set_* APIs (Christoph Hellwig) - misc cleanups and minor optimizations (Chen Y, Yosry Ahmed, Christoph Hellwig) * tag 'dma-mapping-6.12-2024-09-19' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: reflow dma_supported dma-mapping: reliably inform about DMA support for IOMMU dma-mapping: add tracing for dma-mapping API calls dma-mapping: use IOMMU DMA calls for common alloc/free page calls dma-direct: optimize page freeing when it is not addressable dma-mapping: clearly mark DMA ops as an architecture feature vdpa_sim: don't select DMA_OPS arm64: mm: keep low RAM dma zone dma-mapping: don't return errors from dma_set_max_seg_size dma-mapping: don't return errors from dma_set_seg_boundary dma-mapping: don't return errors from dma_set_min_align_mask scsi: check that busses support the DMA API before setting dma parameters arm64: mm: fix DMA zone when dma-ranges is missing dma-mapping: direct calls for dma-iommu dma-mapping: call ->unmap_page and ->unmap_sg unconditionally arm64: support DMA zone above 4GB dma-mapping: replace zone_dma_bits by zone_dma_limit dma-mapping: use bit masking to check VM_DMA_COHERENT

Merge tag 'perf-core-2024-09-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2024-09-18T13:03:58Z

Pull perf events updates from Ingo Molnar: - Implement per-PMU context rescheduling to significantly improve single-PMU performance, and related cleanups/fixes (Peter Zijlstra and Namhyung Kim) - Fix ancient bug resulting in a lot of events being dropped erroneously at higher sampling frequencies (Luo Gengkun) - uprobes enhancements: - Implement RCU-protected hot path optimizations for better performance: "For baseline vs SRCU, peak througput increased from 3.7 M/s (million uprobe triggerings per second) up to about 8 M/s. For uretprobes it's a bit more modest with bump from 2.4 M/s to 5 M/s. For SRCU vs RCU Tasks Trace, peak throughput for uprobes increases further from 8 M/s to 10.3 M/s (+28%!), and for uretprobes from 5.3 M/s to 5.8 M/s (+11%), as we have more work to do on uretprobes side. Even single-thread (no contention) performance is slightly better: 3.276 M/s to 3.396 M/s (+3.5%) for uprobes, and 2.055 M/s to 2.174 M/s (+5.8%) for uretprobes." (Andrii Nakryiko et al) - Document mmap_lock, don't abuse get_user_pages_remote() (Oleg Nesterov) - Cleanups & fixes to prepare for future work: - Remove uprobe_register_refctr() - Simplify error handling for alloc_uprobe() - Make uprobe_register() return struct uprobe * - Fold __uprobe_unregister() into uprobe_unregister() - Shift put_uprobe() from delete_uprobe() to uprobe_unregister() - BPF: Fix use-after-free in bpf_uprobe_multi_link_attach() (Oleg Nesterov) - New feature & ABI extension: allow events to use PERF_SAMPLE READ with inheritance, enabling sample based profiling of a group of counters over a hierarchy of processes or threads (Ben Gainey) - Intel uncore & power events updates: - Add Arrow Lake and Lunar Lake support - Add PERF_EV_CAP_READ_SCOPE - Clean up and enhance cpumask and hotplug support (Kan Liang) - Add LNL uncore iMC freerunning support - Use D0:F0 as a default device (Zhenyu Wang) - Intel PT: fix AUX snapshot handling race (Adrian Hunter) - Misc fixes and cleanups (James Clark, Jiri Olsa, Oleg Nesterov and Peter Zijlstra) * tag 'perf-core-2024-09-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) dmaengine: idxd: Clean up cpumask and hotplug for perfmon iommu/vt-d: Clean up cpumask and hotplug for perfmon perf/x86/intel/cstate: Clean up cpumask and hotplug perf: Add PERF_EV_CAP_READ_SCOPE perf: Generic hotplug support for a PMU with a scope uprobes: perform lockless SRCU-protected uprobes_tree lookup rbtree: provide rb_find_rcu() / rb_find_add_rcu() perf/uprobe: split uprobe_unregister() uprobes: travers uprobe's consumer list locklessly under SRCU protection uprobes: get rid of enum uprobe_filter_ctx in uprobe filter callbacks uprobes: protected uprobe lifetime with SRCU uprobes: revamp uprobe refcounting and lifetime management bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() perf/core: Fix small negative period being ignored perf: Really fix event_function_call() locking perf: Optimize __pmu_ctx_sched_out() perf: Add context time freeze perf: Fix event_function_call() locking perf: Extract a few helpers perf: Optimize context reschedule for single PMU cases ...

dmaengine: idxd: Clean up cpumask and hotplug for perfmon

2024-09-10T09:44:13Z

The idxd PMU is system-wide scope, which is supported by the generic perf_event subsystem now. Set the scope for the idxd PMU and remove all the cpumask and hotplug codes. Signed-off-by: Kan Liang Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dave Jiang Reviewed-by: Fenghua Yu Link: https://lore.kernel.org/r/20240802151643.1691631-6-kan.liang@linux.intel.com

dmaengine: loongson1-apb-dma: Fix the build warning caused by the size of pdev_irqname

2024-09-02T08:26:32Z

drivers/dma/loongson1-apb-dma.c: In function 'ls1x_dma_probe': drivers/dma/loongson1-apb-dma.c:531:42: warning: '%d' directive writing between 1 and 8 bytes into a region of size 2 [-Wformat-overflow=] 531 | sprintf(pdev_irqname, "ch%d", id); | ^~ In function 'ls1x_dma_chan_probe', inlined from 'ls1x_dma_probe' at drivers/dma/loongson1-apb-dma.c:605:8: drivers/dma/loongson1-apb-dma.c:531:39: note: directive argument in the range [0, 19522579] 531 | sprintf(pdev_irqname, "ch%d", id); | ^~~~~~ drivers/dma/loongson1-apb-dma.c:531:17: note: 'sprintf' output between 4 and 11 bytes into a destination of size 4 531 | sprintf(pdev_irqname, "ch%d", id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix the array size and use snprintf() instead of sprintf(). Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202408302108.xIR18jmD-lkp@intel.com/ Signed-off-by: Keguang Zhang Link: https://lore.kernel.org/r/20240831-fix-loongson1-dma-v1-1-91376d87695c@gmail.com Signed-off-by: Vinod Koul

dmaengine: Fix spelling mistakes

2024-09-02T08:26:01Z

Correct spelling mistakes in the DMA engine to improve readability and clarity without altering functionality. Signed-off-by: Amit Vadhavana Reviewed-by: Kees Cook Reviewed-by: Dave Jiang Reviewed-by: Fenghua Yu Link: https://lore.kernel.org/r/20240831172949.13189-1-av2082000@gmail.com Signed-off-by: Vinod Koul

dmaengine: Add dma router for pl08x in LPC32XX SoC

2024-08-29T17:24:11Z

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: fsl-edma: add edma src ID check at request channel

2024-08-29T17:20:48Z

Check src ID to detect misuse of same src ID for multiple DMA channels. Signed-off-by: Joy Zou Reviewed-by: Frank Li Link: https://lore.kernel.org/r/20240701070232.2519179-3-joy.zou@nxp.com Signed-off-by: Vinod Koul

dmaengine: fsl-edma: change to guard(mutex) within fsl_edma3_xlate()

2024-08-29T17:20:48Z

Introduce a scope guard to automatically unlock the mutex within fsl_edma3_xlate() to simplify the code. Prepare to add source ID checks in the future. Signed-off-by: Joy Zou Reviewed-by: Frank Li Link: https://lore.kernel.org/r/20240701070232.2519179-2-joy.zou@nxp.com Signed-off-by: Vinod Koul

dmaengine: avoid non-constant format string

2024-08-29T17:19:53Z

Using an arbitrary string as a printf-style format can be a security problem if that string contains % characters, as the optionalal -Wformat-security flag points out: drivers/dma/dmaengine.c: In function '__dma_async_device_channel_register': drivers/dma/dmaengine.c:1073:17: error: format not a string literal and no format arguments [-Werror=format-security] 1073 | dev_set_name(&chan->dev->device, name); | ^~~~~~~~~~~~ Change this newly added instance to use "%s" as the format instead to pass the actual name. Fixes: 10b8e0fd3f72 ("dmaengine: add channel device name to channel registration") Signed-off-by: Arnd Bergmann Reviewed-by: Dave Jiang Link: https://lore.kernel.org/r/20240719102319.546622-1-arnd@kernel.org Signed-off-by: Vinod Koul