Changes in Makefile

c17ee635fd3a482b2ad2bf5e269755c2eae5f25e - Merge drm/drm-fixes into drm-misc-fixes

Mon, 23 Feb 2026 10:09:45 +0100

Merge drm/drm-fixes into drm-misc-fixes7.0-rc1 was just released, let's merge it to kick the new release cycle.Signed-off-by: Maxime Ripard List of files: /linux/drivers/dma-buf/Makefile

939faf71cf7ca9ab3d1bd2912ac0e203d4d7156a - Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel

Wed, 11 Feb 2026 21:55:44 +0100

Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernelPull drm updates from Dave Airlie: "Highlights: - amdgpu support for lots of new IP blocks which means newer GPUs - xe has a lot of SR-IOV and SVM improvements - lots of intel display refactoring across i915/xe - msm has more support for gen8 platforms - Given up on kgdb/kms integration, it's too hard on modern hw core: - drop kgdb support - replace system workqueue with percpu - account for property blobs in memcg - MAINTAINERS updates for xe + buddy rust: - Fix documentation for Registration constructors - Use pin_init::zeroed() for fops initialization - Annotate DRM helpers with __rust_helper - Improve safety documentation for gem::Object::new() - Update AlwaysRefCounted imports - mm: Prevent integer overflow in page_align() atomic: - add drm_device pointer to drm_private_obj - introduce gamma/degamma LUT size check buddy: - fix free_trees memory leak - prevent BUG_ON bridge: - introduce drm_bridge_unplug/enter/exit - add connector argument to .hpd_notify - lots of recounting conversions - convert rockchip inno hdmi to bridge - lontium-lt9611uxc: switch to HDMI audio helpers - dw-hdmi-qp: add support for HPD-less setups - Algoltek AG6311 support panels: - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H - st75751: add SPI support - Sitronix ST7920, Samsung LTL106HL02 - LG LH546WF1-ED01, HannStar HSD156J - BOE NV130WUM-T08 - Innolux G150XGE-L05 - Anbernic RG-DS dma-buf: - improve sg_table debugging - add tracepoints - call clear_page instead of memset - start to introduce cgroup memory accounting in heaps - remove sysfs stats dma-fence: - add new helpers dp: - mst: avoid oob access with vcpi=0 hdmi: - limit infoframes exposure to userspace gem: - reduce page table overhead with THP - fix leak in drm_gem_get_unmapped_area gpuvm: - API sanitation for rust bindings sched: - introduce new helpers panic: - report invalid panic modes - add kunit tests i915/xe display: - Expose sharpness only if num_scalers is >= 2 - Add initial Xe3P_LPD for NVL - BMG FBC support - Add MTL+ platforms to support dpll framework _ fix DIMM_S DRM decoding on ICL - Return to using AUX interrupts - PSR/Panel replay refactoring - use consolidation HDMI tables - Xe3_LPD CD2X dividier changes xe: - vfio: add vfio_pci for intel GPU - multi queue support - dynamic pagemaps and multi-device SVM - expose temp attribs in hwmon - NO_COMPRESSION bo flag - expose MERT OA unit - sysfs survivability refactor - SRIOV PF: add MERT support - enable SR-IOV VF migration - Enable I2C/NVM on Crescent Island - Xe3p page reclaimation support - introduce SRIOV scheduler groups - add SoC remappt support in system controller - insert compiler barriers in GuC code - define NVL GuC firmware - handle GT resume failure - fix drm scheduler layering violations - enable GSC loading and PXP for PTL - disable GuC Power DCC strategy on PTL - unregister drm device on probe error i915: - move to kernel standard fault injection - bump recommended GuC version for DG2 and MTL amdgpu: - SMUIO 15.x, PSP 15.x support - IH 6.1.1/7.1 support - MMHUB 3.4/4.2 support - GC 11.5.4/12.1 support - SDMA 6.1.4/7.1/7.11.4 support - JPEG 5.3 support - UserQ updates - GC 9 gfx queue reset support - TTM memory ops parallelization - convert legacy logging to new helpers - DC analog fixes amdkfd: - GC 11.5.4/12.1 suppport - SDMA 6.1.4/7.1 support - per context support - increase kfd process hash table - Reserved SDMA rework radeon: - convert legacy logging to new helpers - use devm for i2c adapters msm: - GPU - Document a612/RGMU dt bindings - UBWC 6.0 support (for A840 / Kaanapali) - a225 support - DPU: - Switch to use virtual planes by default - Fix DSI CMD panels on DPU 3.x - Rewrite format handling to remove intermediate representation - Fix watchdog on DPU 8.x+ - Fix TE / Vsync source setting on DPU 8.x+ - Add 3D_Mux on SC7280 - Kaanapali platform support - Fix UBWC register programming - Make RM reserve DSPP-enabled mixers for CRTCs with LMs - Gamma correction support - DP: - Enable support for eDP 1.4+ link rate tables - Fix MDSS1 DP indices on SA8775P, making them to work - Fix msm_dp_ctrl_config_msa() to work with LLVM 20 - DSI: - Document QCS8300 as compatible with SA8775P - Kaanapali platform support - DSI PHY: - switch to divider_determine_rate() - MDP5: - Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU) - MDSS: - Kaanapali platform support - Fixed UBWC register programming nova-core: - Prepare for Turing support. This includes parsing and handling Turing-specific firmware headers and sections as well as a Turing Falcon HAL implementation - Get rid of the Result> anti-pattern - Relocate initializer-specific code into the appropriate initializer - Use CStr::from_bytes_until_nul() to remove custom helpers - Improve handling of unexpected firmware values - Clean up redundant debug prints - Replace c_str!() with native Rust C-string literals - Update nova-core task list nova: - Align GEM object size to system page size tyr: - Use generated uAPI bindings for GpuInfo - Replace manual sleeps with read_poll_timeout() - Replace c_str!() with native Rust C-string literals - Suppress warnings for unread fields - Fix incorrect register name in print statement nouveau: - fix big page table support races in PTE management - improve reclocking on tegra 186+ amdxdna: - fix suspend race conditions - improve handling of zero tail pointers - fix cu_idx overwritten during command setup - enable hardware context priority - remove NPU2 support - update message buffer allocation requirements - update firmware version check ast: - support imported cursor buffers - big endian fixes etnaviv: - add PPU flop reset support imagination: - add AM62P support - introduce hw version checks ivpu: - implement warm boot flow panfrost: - add bo sync ioctl - add GPU_PM_RT support for RZ/G3E SoC panthor: - add bo sync ioctl - enable timestamp propagation - scheduler robustness improvements - VM termination fixes - huge page support rockchip: - RK3368 HDMI Support - get rid of atomic_check fixups - RK3506 support - RK3576/RK3588 improved HPD handling rz-du: - RZ/V2H(P) MIPI-DSI Support v3d: - fix DMA segment size - convert to new logging helpers mediatek: - move DP training to hotplug thread - convert logging to new helpers - add support for HS speed DSI - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support atmel-hlcdc: - switch to drmm resource - support nomodeset - use newer helpers hisilicon: - fix various DP bugs renesas: - fix kernel panic on reboot exynos: - fix vidi_connection_ioctl using wrong device - fix vidi_connection deref user ptr - fix concurrency regression with vidi_context vkms: - add configfs support for display configuration* tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits) drm/xe/pm: Disable D3Cold for BMG only on specific platforms drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early drm/xe: Fix kerneldoc for xe_migrate_exec_queue drm/xe/query: Fix topology query pointer advance drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header drm/xe/guc: Fix CFI violation in debugfs access. accel/amdxdna: Move RPM resume into job run function accel/amdxdna: Fix incorrect DPM level after suspend/resume nouveau/vmm: start tracking if the LPT PTE is valid. (v6) nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2) nouveau/vmm: rewrite pte tracker using a struct and bitfields. accel/amdxdna: Fix incorrect error code returned for failed chain command accel/amdxdna: Remove hardware context status drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe() drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc drm/i915/display: fix the pixel normalization handling for xe3p_lpd drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free drm/exynos: vidi: fix to avoid directly dereferencing user pointer drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() ... List of files: /linux/drivers/dma-buf/Makefile

ec496f77b4c11036cc835d6f045fb5e5ef1e6530 - Merge branch 'for-6.20/sony' into for-linus

Mon, 09 Feb 2026 17:33:26 +0100

Merge branch 'for-6.20/sony' into for-linus- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders) List of files: /linux/drivers/dma-buf/Makefile

b2c6627e406d00bc53903ff6204aabb0c6a22b1a - Merge tag 'drm-misc-next-2026-01-22' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Fri, 23 Jan 2026 03:44:59 +0100

Merge tag 'drm-misc-next-2026-01-22' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-nextdrm-misc-next for 6.20:Core Changes: - buddy: Fix free_trees memory leak, prevent a BUG_ON - dma-buf: Start to introduce cgroup memory accounting in heaps, Remove sysfs stats, add new tracepoints - hdmi: Limit infoframes exposure to userspace based on driver capabilities - property: Account for property blobs in memcgDriver Changes: - atmel-hlcdc: Switch to drmm resources, Support nomodeset parameter, various patches to use newish helpers and fix memory safety bugs - hisilicon: Fix various DisplayPort related bugs - imagination: Introduce hardware version checks - renesas: Fix kernel panic on reboot - rockchip: Fix RK3576 HPD interrupt handling, Improve RK3588 HPD interrupt handling - v3d: Convert to drm logging helpers - bridge: - Continuation of the refcounting effort - new bridge: Algoltek AG6311 - panel: - new panel: Anbernic RG-DSSigned-off-by: Dave Airlie From: Maxime Ripard Link: https://patch.msgid.link/20260122-antique-sexy-junglefowl-1bc5a8@houat List of files: /linux/drivers/dma-buf/Makefile

cc4adab164b772a34b3340d644b7c4728498581e - Merge tag 'v6.19-rc1' into msm-next

Tue, 20 Jan 2026 23:06:55 +0100

Merge tag 'v6.19-rc1' into msm-nextMerge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWCconfig database defining UBWC_6).Signed-off-by: Dmitry Baryshkov List of files: /linux/drivers/dma-buf/Makefile

ab4c3dcf9a71582503b4fb25aeab884c696cab25 - dma-buf: Remove DMA-BUF sysfs stats

Fri, 16 Jan 2026 20:05:12 +0100

dma-buf: Remove DMA-BUF sysfs statsCommit bdb8d06dfefd ("dmabuf: Add the capability to expose DMA-BUF statsin sysfs") added dmabuf statistics to sysfs in 2021 underCONFIG_DMABUF_SYSFS_STATS. After being used in production, performanceproblems were discovered leading to its deprecation in 2022 in commite0a9f1fe206a ("dma-buf: deprecate DMABUF_SYSFS_STATS"). Some of theproblems with this interface were discussed in my LPC 2025 talk. [1][2]Android was probably the last user of the interface, which has sincebeen migrated to use the dmabuf BPF iterator [3] to obtain the sameinformation more cheaply. As promised in that series, now that thelongterm stable 6.18 kernel has been released let's remove the sysfsdmabuf statistics from the kernel.[1] https://www.youtube.com/watch?v=D83qygudq9c[2] https://lpc.events/event/19/contributions/2118/[3] https://lore.kernel.org/all/20250522230429.941193-1-tjmercier@google.com/Signed-off-by: T.J. Mercier Reviewed-by: Christian König Signed-off-by: Sumit Semwal Link: https://patch.msgid.link/20260116190517.3268458-1-tjmercier@google.com List of files: /linux/drivers/dma-buf/Makefile

5add3c3c280a35f7e258e9cef7607db5a2e56fdc - Merge drm/drm-next into drm-xe-next

Fri, 19 Dec 2025 11:51:22 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.19-rc1. An important upstream bugfix andto help unblock PTL CI.Signed-off-by: Thomas Hellström List of files: /linux/drivers/dma-buf/Makefile

ec439c38013550420aecc15988ae6acb670838c1 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Wed, 17 Dec 2025 06:29:38 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1Cross-merge BPF and other fixes after downstream PR.Signed-off-by: Alexei Starovoitov List of files: /linux/drivers/dma-buf/Makefile

b8304863a3990d0f18c38e5b94191830a63ee1af - Merge drm/drm-next into drm-intel-next

Mon, 15 Dec 2025 14:24:02 +0100

Merge drm/drm-next into drm-intel-nextSync-up some display code needed for Async flips refactor.Signed-off-by: Rodrigo Vivi List of files: /linux/drivers/dma-buf/Makefile

7f790dd21a931c61167f7bdc327aecf2cebad327 - Merge drm/drm-next into drm-misc-next

Mon, 15 Dec 2025 09:27:39 +0100

Merge drm/drm-next into drm-misc-nextLet's kickstart the v6.20 (7.0?) release cycle.Signed-off-by: Maxime Ripard List of files: /linux/drivers/dma-buf/Makefile

24f171c7e145f43b9f187578e89b0982ce87e54c - Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Sun, 21 Dec 2025 11:11:11 +0100

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.19We've been quite busy with fixes since the merge window, though not inany particularly exciting ways - the standout thing is the fix for _SXcontrols which were broken by a change to how we do clamping, otherwiseit's all fairly run of the mill fixes and quirks. List of files: /linux/drivers/dma-buf/Makefile

84318277d6334c6981ab326d4acc87c6a6ddc9b8 - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Mon, 15 Dec 2025 12:53:27 +0100

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesPull in rc1 to include all changes since the merge window closed,and grab all fixes and changes from drm/drm-next.Signed-off-by: Maarten Lankhorst List of files: /linux/drivers/dma-buf/Makefile

a3ebb59eee2e558e8f8f27fc3f75cd367f17cd8e - Merge tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio

Fri, 05 Dec 2025 03:42:48 +0100

Merge tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfioPull VFIO updates from Alex Williamson: - Move libvfio selftest artifacts in preparation of more tightly coupled integration with KVM selftests (David Matlack) - Fix comment typo in mtty driver (Chu Guangqing) - Support for new hardware revision in the hisi_acc vfio-pci variant driver where the migration registers can now be accessed via the PF. When enabled for this support, the full BAR can be exposed to the user (Longfang Liu) - Fix vfio cdev support for VF token passing, using the correct size for the kernel structure, thereby actually allowing userspace to provide a non-zero UUID token. Also set the match token callback for the hisi_acc, fixing VF token support for this this vfio-pci variant driver (Raghavendra Rao Ananta) - Introduce internal callbacks on vfio devices to simplify and consolidate duplicate code for generating VFIO_DEVICE_GET_REGION_INFO data, removing various ioctl intercepts with a more structured solution (Jason Gunthorpe) - Introduce dma-buf support for vfio-pci devices, allowing MMIO regions to be exposed through dma-buf objects with lifecycle managed through move operations. This enables low-level interactions such as a vfio-pci based SPDK drivers interacting directly with dma-buf capable RDMA devices to enable peer-to-peer operations. IOMMUFD is also now able to build upon this support to fill a long standing feature gap versus the legacy vfio type1 IOMMU backend with an implementation of P2P support for VM use cases that better manages the lifecycle of the P2P mapping (Leon Romanovsky, Jason Gunthorpe, Vivek Kasireddy) - Convert eventfd triggering for error and request signals to use RCU mechanisms in order to avoid a 3-way lockdep reported deadlock issue (Alex Williamson) - Fix a 32-bit overflow introduced via dma-buf support manifesting with large DMA buffers (Alex Mastro) - Convert nvgrace-gpu vfio-pci variant driver to insert mappings on fault rather than at mmap time. This conversion serves both to make use of huge PFNMAPs but also to both avoid corrected RAS events during reset by now being subject to vfio-pci-core's use of unmap_mapping_range(), and to enable a device readiness test after reset (Ankit Agrawal) - Refactoring of vfio selftests to support multi-device tests and split code to provide better separation between IOMMU and device objects. This work also enables a new test suite addition to measure parallel device initialization latency (David Matlack)* tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio: (65 commits) vfio: selftests: Add vfio_pci_device_init_perf_test vfio: selftests: Eliminate INVALID_IOVA vfio: selftests: Split libvfio.h into separate header files vfio: selftests: Move vfio_selftests_*() helpers into libvfio.c vfio: selftests: Rename vfio_util.h to libvfio.h vfio: selftests: Stop passing device for IOMMU operations vfio: selftests: Move IOVA allocator into iova_allocator.c vfio: selftests: Move IOMMU library code into iommu.c vfio: selftests: Rename struct vfio_dma_region to dma_region vfio: selftests: Upgrade driver logging to dev_err() vfio: selftests: Prefix logs with device BDF where relevant vfio: selftests: Eliminate overly chatty logging vfio: selftests: Support multiple devices in the same container/iommufd vfio: selftests: Introduce struct iommu vfio: selftests: Rename struct vfio_iommu_mode to iommu_mode vfio: selftests: Allow passing multiple BDFs on the command line vfio: selftests: Split run.sh into separate scripts vfio: selftests: Move run.sh into scripts directory vfio/nvgrace-gpu: wait for the GPU mem to be ready vfio/nvgrace-gpu: Inform devmem unmapped after reset ... List of files: /linux/drivers/dma-buf/Makefile

5185c4d8a56b34f33cec574793047fcd2dba2055 - Merge branch 'iommufd_dmabuf' into k.o-iommufd/for-next

Tue, 25 Nov 2025 17:46:52 +0100

Merge branch 'iommufd_dmabuf' into k.o-iommufd/for-nextJason Gunthorpe says:====================This series is the start of adding full DMABUF support toiommufd. Currently it is limited to only work with VFIO's DMABUF exporter.It sits on top of Leon's series to add a DMABUF exporter to VFIO: https://lore.kernel.org/all/20251120-dmabuf-vfio-v9-0-d7f71607f371@nvidia.com/The existing IOMMU_IOAS_MAP_FILE is enhanced to detect DMABUF fd's, butotherwise works the same as it does today for a memfd. The user can selecta slice of the FD to map into the ioas and if the underliyng alignmentrequirements are met it will be placed in the iommu_domain.Though limited, it is enough to allow a VMM like QEMU to connect MMIO BARmemory from VFIO to an iommu_domain controlled by iommufd. This is usedfor PCI Peer to Peer support in VMs, and is the last feature that the VFIOtype 1 container has that iommufd couldn't do.The VFIO type1 version extracts raw PFNs from VMAs, which has no lifetimecontrol and is a use-after-free security problem.Instead iommufd relies on revokable DMABUFs. Whenever VFIO thinks thereshould be no access to the MMIO it can shoot down the mapping in iommufdwhich will unmap it from the iommu_domain. There is no automatic remap,this is a safety protocol so the kernel doesn't get stuck. Userspace isexpected to know it is doing something that will revoke the dmabuf andmap/unmap it around the activity. Eg when QEMU goes to issue FLR it shoulddo the map/unmap to iommufd.Since DMABUF is missing some key general features for this use case itrelies on a "private interconnect" between VFIO and iommufd via thevfio_pci_dma_buf_iommufd_map() call.The call confirms the DMABUF has revoke semantics and delivers a phys_addrfor the memory suitable for use with iommu_map().Medium term there is a desire to expand the supported DMABUFs to includeGPU drivers to support DPDK/SPDK type use cases so future series will workto add a general concept of revoke and a general negotiation ofinterconnect to remove vfio_pci_dma_buf_iommufd_map().I also plan another series to modify iommufd's vfio_compat totransparently pull a dmabuf out of a VFIO VMA to emulate more of the uAPIof type1.The latest series for interconnect negotation to exchange a phys_addr is: https://lore.kernel.org/r/20251027044712.1676175-1-vivek.kasireddy@intel.comAnd the discussion for design of revoke is here: https://lore.kernel.org/dri-devel/20250114173103.GE5556@nvidia.com/====================Based on a shared branch with vfio.* iommufd_dmabuf: iommufd/selftest: Add some tests for the dmabuf flow iommufd: Accept a DMABUF through IOMMU_IOAS_MAP_FILE iommufd: Have iopt_map_file_pages convert the fd to a file iommufd: Have pfn_reader process DMABUF iopt_pages iommufd: Allow MMIO pages in a batch iommufd: Allow a DMABUF to be revoked iommufd: Do not map/unmap revoked DMABUFs iommufd: Add DMABUF to iopt_pages vfio/pci: Add vfio_pci_dma_buf_iommufd_map() vfio/nvgrace: Support get_dmabuf_phys vfio/pci: Add dma-buf export support for MMIO regions vfio/pci: Enable peer-to-peer DMA transactions by default vfio/pci: Share the core device pointer while invoking feature functions vfio: Export vfio device get and put registration helpers dma-buf: provide phys_vec to scatter-gather mapping routine PCI/P2PDMA: Document DMABUF model PCI/P2PDMA: Provide an access to pci_p2pdma_map_type() function PCI/P2PDMA: Refactor to separate core P2P functionality from memory allocation PCI/P2PDMA: Simplify bus address mapping API PCI/P2PDMA: Separate the mmap() support from the core logicSigned-off-by: Jason Gunthorpe List of files: /linux/drivers/dma-buf/Makefile

fa804aa4ac1b091ef2ec2981f08a1c28aaeba8e7 - Merge tag 'vfio-v6.19-dma-buf-v9+' into v6.19/vfio/next

Fri, 21 Nov 2025 05:20:00 +0100

Merge tag 'vfio-v6.19-dma-buf-v9+' into v6.19/vfio/next[v9] vfio/pci: Allow MMIO regions to be exported through dma-bufhttps://lore.kernel.org/all/20251120-dmabuf-vfio-v9-0-d7f71607f371@nvidia.comSigned-off-by: Alex Williamson List of files: /linux/drivers/dma-buf/Makefile

3aa31a8bb11e47c0ff2b306988d1756b810c1c3c - dma-buf: provide phys_vec to scatter-gather mapping routine

Thu, 20 Nov 2025 10:28:25 +0100

dma-buf: provide phys_vec to scatter-gather mapping routineAdd dma_buf_phys_vec_to_sgt() and dma_buf_free_sgt() helpers to convertan array of MMIO physical address ranges into scatter-gather tables withproper DMA mapping.These common functions are a starting point and support any PCIdrivers creating mappings from their BAR's MMIO addresses. VFIO is onecase, as shortly will be RDMA. We can review existing DRM drivers torefactor them separately. We hope this will evolve into routines tohelp common DRM that include mixed CPU and MMIO mappings.Compared to the dma_map_resource() abuse this implementation handlesthe complicated PCI P2P scenarios properly, especially when an IOMMUis enabled: - Direct bus address mapping without IOVA allocation for PCI_P2PDMA_MAP_BUS_ADDR, using pci_p2pdma_bus_addr_map(). This happens if the IOMMU is enabled but the PCIe switch ACS flags allow transactions to avoid the host bridge. Further, this handles the slightly obscure, case of MMIO with a phys_addr_t that is different from the physical BAR programming (bus offset). The phys_addr_t is converted to a dma_addr_t and accommodates this effect. This enables certain real systems to work, especially on ARM platforms. - Mapping through host bridge with IOVA allocation and DMA_ATTR_MMIO attribute for MMIO memory regions (PCI_P2PDMA_MAP_THRU_HOST_BRIDGE). This happens when the IOMMU is enabled and the ACS flags are forcing all traffic to the IOMMU - ie for virtualization systems. - Cases where P2P is not supported through the host bridge/CPU. The P2P subsystem is the proper place to detect this and block it.Helper functions fill_sg_entry() and calc_sg_nents() handle thescatter-gather table construction, splitting large regions intoUINT_MAX-sized chunks to fit within sg->length field limits.Since the physical address based DMA API forbids use of the CPU listof the scatterlist this will produce a mangled scatterlist that hasa fully zero-length and NULL'd CPU list. The list is 0 length,all the struct page pointers are NULL and zero sized. This is strongerand more robust than the existing mangle_sg_table() technique. It isa future project to migrate DMABUF as a subsystem away from usingscatterlist for this data structure.Reviewed-by: Kevin Tian Reviewed-by: Nicolin Chen Reviewed-by: Jason Gunthorpe Tested-by: Alex Mastro Tested-by: Nicolin Chen Signed-off-by: Leon Romanovsky Acked-by: Christian König Acked-by: Ankit Agrawal Link: https://lore.kernel.org/r/20251120-dmabuf-vfio-v9-6-d7f71607f371@nvidia.comSigned-off-by: Alex Williamson List of files: /linux/drivers/dma-buf/Makefile

4f2c0a4acffbec01079c28f839422e64ddeff004 - Merge branch 'main' into zstd-linus

Wed, 14 Dec 2022 01:21:55 +0100

Merge branch 'main' into zstd-linus List of files: /linux/drivers/dma-buf/Makefile

14e77332e74603efab8347c89d3cda447c3b97c9 - Merge branch 'main' into zstd-next

Sat, 22 Oct 2022 01:00:35 +0200

Merge branch 'main' into zstd-next List of files: /linux/drivers/dma-buf/Makefile

5f8f8574c7f5585b09a9623f0f13462e4eb67b4d - Merge branch 'next' into for-linus

Mon, 10 Oct 2022 07:30:23 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.1 merge window. List of files: /linux/drivers/dma-buf/Makefile

97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3 - Merge drm/drm-next into drm-intel-gt-next

Mon, 03 Oct 2022 18:04:02 +0200

Merge drm/drm-next into drm-intel-gt-nextDaniele needs 84d4333c1e28 ("misc/mei: Add NULL check to component matchcallback functions") in order to merge the DG2 HuC patches.Signed-off-by: Tvrtko Ursulin List of files: /linux/drivers/dma-buf/Makefile