mirror of
https://github.com/torvalds/linux.git
synced 2026-05-12 16:18:45 +02:00
master
755 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
cf950766e9 |
drm fixes for 7.1-rc1
atomic: - raise the vblank timeout to avoid it on virtual drivers - fix colorop duplication bridge: - stm_lvds: state check fix - dw-mipi-dsi: bridge reference leak fix panel: - visionx-rm69299: init fix dma-fence: - fix sparse warning dma-buf: - UAF fix panthor: - mapping fix arcgpu: - device_node reference leak fix nouveau: - memory leak in error path fix - overflow in reloc path for old hw fix hv: - Kconfig fix v3d: - infinite loop fix -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmnrCR4ACgkQDHTzWXnE hr7HEw/9EynaVUxBlI+B+kKakkvt1fpRfaSwaWyawcqaS1XpBjwuUR/aUS44fHzE Z1ru6DACZPwKqRTTLm1urE7qjb3T1HKDgSV9LbLJCe3MOZ1HMmyfitoRgWvP/nXU bpwT7K79g0g87HMwVzyS13jqSeXmAbuuqF8cgyUsYUU7Jvl3tEd9FfOhwo4BG/4j 4EDlj9SDrd6/3SbnKzVfrt6xl/ikpNxoYJlMVW3NIDzfZ8aKGdf/jYgKb3ezluDB 2UAiZdFRiCQd0DunQvCBwnY5/dpxXIajWtAW2f6FWEqIS5mtXkVG6PPzpLRNEmkp wetjtnisqwkwSxFxz0pgEII0PsKoxKrQPBXz7zXH6bK6e3i4LQ09mt1Ufc3w9am3 f29IW2AWYZzB1tOOmMt34mvDm49xXWt/7Q6hHAorQ9ABtb6V3SzsDKfDElEF2ULF g1WMCN9uh5ErWkEc1rqIjQ3TPI9EISfUG+hvvr75PA59EHE7a4tQGf45DNWPeC8+ rO5m8aDKgif7exkoiA8fc8zq4shiH7/tGbJsnZP1GTgyQTBtT4Aik/rVT0zifDpY yQ0gwybnd9I7lXMVlhFPaq83HMsr38e8HyViubNmzA8zbd58cPRqBygPqIW6trWr 6/kzoNFhjgICJsOSi8KkQAtT1zRnakiR1I3GfVos+1DyhC9yPIo= =WXJa -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel Pull more drm fixes from Dave Airlie: "These are the regular fixes that have built up over last couple of weeks, all pretty minor and spread all over. atomic: - raise the vblank timeout to avoid it on virtual drivers - fix colorop duplication bridge: - stm_lvds: state check fix - dw-mipi-dsi: bridge reference leak fix panel: - visionx-rm69299: init fix dma-fence: - fix sparse warning dma-buf: - UAF fix panthor: - mapping fix arcgpu: - device_node reference leak fix nouveau: - memory leak in error path fix - overflow in reloc path for old hw fix hv: - Kconfig fix v3d: - infinite loop fix" * tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check MAINTAINERS: split hisilicon maintenance and add Yongbang Shi for hibmc-drm matainers drm/v3d: Reject empty multisync extension to prevent infinite loop drm/panel: visionox-rm69299: Make use of prepare_prev_first drm/drm_atomic: duplicate colorop states if plane color pipeline in use drm/nouveau: fix nvkm_device leak on aperture removal failure hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS dma-fence: Silence sparse warning in dma_fence_describe drm/bridge: dw-mipi-dsi: Fix bridge leak when host attach fails drm/arcpgu: fix device node leak drm/panthor: Fix outdated function documentation drm/panthor: Extend VM locked region for remap case to be a superset dma-buf: fix UAF in dma_buf_put() tracepoint drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector drm/atomic: Increase timeout in drm_atomic_helper_wait_for_vblanks() |
||
|
Linus Torvalds
|
6596a02b20 |
drm for 7.1-rc1 (part 2)
drm: - Add support for AMD VSDB parsing to drm_edid dma-buf: - fix documentation formatting i915: - add support for reordered pipes to support joined pipes better - Fix VESA backlight possible check condition - Verify the correct plane DDB entry amdgpu: - Audio regression fix - Use drm edid parser for AMD VSDB - Misc cleanups - VCE cs parse fixes - VCN cs parse fixes - RAS fixes - Clean up and unify vram reservation handling - GPU Partition updates - system_wq cleanups - Add CONFIG_GCOV_PROFILE_AMDGPU kconfig option - SMU vram copy updates - SMU 13/14/15 fixes - UserQ fixes - Replace pasid idr with an xarray - Dither handling fix - Enable amdgpu by default for CIK APUs - Add IBs to devcoredump amdkfd: - system_wq cleanups radeon: - system_wq cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmnn8KcACgkQDHTzWXnE hr6pOQ/+O2ELjqV53pgkdL+PVj3s0Rxe3i+dizO3j9eTtYfYsZjSWF1yasis1LpL sglFJtep2K18uI6nnPrti61tPFZviq3rYCBqKRi6A6AT518ZgelBn2v9qHwodiRa 8JSygyFymnfjEXf0JVM076e2l7ZC0/LEdaYb0iKC8htp5D+yQcasRB2algKAiztE RNIOUk4CciNCNHPZwzc6epFGBn5a+kxYZi3KVdjmBsovw0zOIbfe7PJe/VSmXocR RfuDW2ZyWWH8MwlOkrTA68VBLK9lz/sXrWyF5TEBfu73oxKCeuoW/ZQGEQ4tjjT5 yad9MtfQZPaPtDxMBBhlKOd2eGs3xpeoiWKSc/C1Xup0c6IZSpU4e5tB98w3cw96 WEfGKcPwkl27uzGwUaG/xTUTjZtqnmv1tYdtq3on6pDSTp/K9SVX9VtEkywvVDya dAznCqY22CtsBWyb7CJ7Qhj+plu5tJ6ajFCqxNTbH7/mxil8dUobMPyzt3Nu3e8L cNDDnqC3l20N7SSi06m1abyGbvfhnS+2tDJ1xpK6maMCU8tLfebWapns0RfJtTa6 ZytUOED2lkBXhx7jwP0Qyx12RV9Wr3XHmtBLqM1Es97qeRS7HsHUWci9KzxT2Tb2 YUr/y3wGG3C28FPWh1MVnnsSUzl7hTbHtZZE+FXHe80JpkxvYK8= =NmlO -----END PGP SIGNATURE----- Merge tag 'drm-next-2026-04-22' of https://gitlab.freedesktop.org/drm/kernel Pull more drm updates from Dave Airlie: "This is a followup which is mostly next material with some fixes. Alex pointed out I missed one of his AMD MRs from last week, so I added that, then Jani sent the pipe reordering stuff, otherwise it's just some minor i915 fixes and a dma-buf fix. drm: - Add support for AMD VSDB parsing to drm_edid dma-buf: - fix documentation formatting i915: - add support for reordered pipes to support joined pipes better - Fix VESA backlight possible check condition - Verify the correct plane DDB entry amdgpu: - Audio regression fix - Use drm edid parser for AMD VSDB - Misc cleanups - VCE cs parse fixes - VCN cs parse fixes - RAS fixes - Clean up and unify vram reservation handling - GPU Partition updates - system_wq cleanups - Add CONFIG_GCOV_PROFILE_AMDGPU kconfig option - SMU vram copy updates - SMU 13/14/15 fixes - UserQ fixes - Replace pasid idr with an xarray - Dither handling fix - Enable amdgpu by default for CIK APUs - Add IBs to devcoredump amdkfd: - system_wq cleanups radeon: - system_wq cleanups" * tag 'drm-next-2026-04-22' of https://gitlab.freedesktop.org/drm/kernel: (62 commits) drm/i915/display: change pipe allocation order for discrete platforms drm/i915/wm: Verify the correct plane DDB entry drm/i915/backlight: Fix VESA backlight possible check condition drm/i915: Walk crtcs in pipe order drm/i915/joiner: Make joiner "nomodeset" state copy independent of pipe order dma-buf: fix htmldocs error for dma_buf_attach_revocable drm/amdgpu: dump job ibs in the devcoredump drm/amdgpu: store ib info for devcoredump drm/amdgpu: extract amdgpu_vm_lock_by_pasid from amdgpu_vm_handle_fault drm/amdgpu: Use amdgpu by default for CIK APUs too drm/amd/display: Remove unused NUM_ELEMENTS macros drm/amd/display: Replace inline NUM_ELEMENTS macro with ARRAY_SIZE drm/amdgpu: save ring content before resetting the device drm/amdgpu: make userq fence_drv drop explicit in queue destroy drm/amdgpu: rework userq fence driver alloc/destroy drm/amdgpu/userq: use dma_fence_wait_timeout without test for signalled drm/amdgpu/userq: call dma_resv_wait_timeout without test for signalled drm/amdgpu/userq: add the return code too in error condition drm/amdgpu/userq: fence wait for max time in amdgpu_userq_wait_for_signal drm/amd/display: Change dither policy for 10 bpc output back to dithering ... |
||
|
Linus Torvalds
|
87768582a4 |
dma-mapping updates for Linux 7.0:
- added support for batched cache sync, what improves performance of
dma_map/unmap_sg() operations on ARM64 architecture (Barry Song)
- introduced DMA_ATTR_CC_SHARED attribute for explicitly shared memory
used in confidential computing (Jiri Pirko)
- refactored spaghetti-like code in drivers/of/of_reserved_mem.c and its
clients (Marek Szyprowski, shared branch with device-tree updates to
avoid merge conflicts)
- prepared Contiguous Memory Allocator related code for making dma-buf
drivers modularized (Maxime Ripard)
- added support for benchmarking dma_map_sg() calls to tools/dma utility
(Qinxin Xia)
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSrngzkoBtlA8uaaJ+Jp1EFxbsSRAUCaeCbdQAKCRCJp1EFxbsS
RHbWAQCt70dzrU0lu0omTR1HdDP4GTYfuM6nZR91e8/itGN1+QD/XH4I/0wuybzk
v5uxbIC6lR3abQRc3YNRXfi+i5j26A4=
=Oee2
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski:
- added support for batched cache sync, what improves performance of
dma_map/unmap_sg() operations on ARM64 architecture (Barry Song)
- introduced DMA_ATTR_CC_SHARED attribute for explicitly shared memory
used in confidential computing (Jiri Pirko)
- refactored spaghetti-like code in drivers/of/of_reserved_mem.c and
its clients (Marek Szyprowski, shared branch with device-tree updates
to avoid merge conflicts)
- prepared Contiguous Memory Allocator related code for making dma-buf
drivers modularized (Maxime Ripard)
- added support for benchmarking dma_map_sg() calls to tools/dma
utility (Qinxin Xia)
* tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: (24 commits)
dma-buf: heaps: system: document system_cc_shared heap
dma-buf: heaps: system: add system_cc_shared heap for explicitly shared memory
dma-mapping: introduce DMA_ATTR_CC_SHARED for shared memory
mm: cma: Export cma_alloc(), cma_release() and cma_get_name()
dma: contiguous: Export dev_get_cma_area()
dma: contiguous: Make dma_contiguous_default_area static
dma: contiguous: Make dev_get_cma_area() a proper function
dma: contiguous: Turn heap registration logic around
of: reserved_mem: rework fdt_init_reserved_mem_node()
of: reserved_mem: clarify fdt_scan_reserved_mem*() functions
of: reserved_mem: rearrange code a bit
of: reserved_mem: replace CMA quirks by generic methods
of: reserved_mem: switch to ops based OF_DECLARE()
of: reserved_mem: use -ENODEV instead of -ENOENT
of: reserved_mem: remove fdt node from the structure
dma-mapping: fix false kernel-doc comment marker
dma-mapping: Support batch mode for dma_direct_{map,unmap}_sg
dma-mapping: Separate DMA sync issuing and completion waiting
arm64: Provide dcache_inval_poc_nosync helper
arm64: Provide dcache_clean_poc_nosync helper
...
|
||
|
Linus Torvalds
|
4a57e0913e |
drm for v7.1-rc1
mm: - two pass MMU interval notifiers - add gpu active/reclaim per-node stat counters math: - provide __KERNEL_DIV_ROUND_CLOSEST() in UAPI - implement DIV_ROUND_CLOSEST() with __KERNEL_DIV_ROUND_CLOSEST() rust: - shared tag with driver-core: register macro and io infra - core: rework DMA coherent API - core: add interop::list to interop with C linked lists - core: add more num::Bounded operations - core: enable generic_arg_infer and add EMSGSIZE - workqueue: add ARef<T> support for work and delayed work - add GPU buddy allocator abstraction - add DRM shmem GEM helper abstraction - allow drm:::Device to dispatch work and delayed work items to driver private data - add dma_resv_lock helper and raw accessors core: - introduce DRM RAS infrastructure over netlink - add connector panel_type property - fourcc: add ARM interleaved 64k modifier - colorop: add destroy helper - suballoc: split into alloc and init helpers - mode: provide DRM_ARGB_GET*() macros for reading color components edid: - provide drm_output_color_Format dma-buf: - provide revoke mechanism for shared buffers - rename move_notify to invalidate_mappings - always enable move_notify - protect dma_fence_ops with RCU and improve locking - clean pages with helpers atomic: - allocate drm_private_state via callback - helper: use system_percpu_wq buddy: - make buddy allocator available to gpu level - add kernel-doc for buddy allocator - improve aligned allocation ttm: - fix fence signalling - improve tests and docs - improve handling of gfp_retry_mayfail - use per-node stat counters to track memory allocations - port pool to use list_lru - drop NUMA specific pools - make pool shrinker numa aware - track allocated pages per numa node coreboot: - cleanup coreboot framebuffer support sched: - fix race condition in drm_sched_fini pagemap: - enable THP support - pass pagemap_addr by reference gem-shmem: - Track page accessed/dirty status across mmap/vmap gpusvm: - reenable device to device migration - fix unbalanced unclock bridge: - anx7625: Support USB-C plus DT bindings - connector: Fix EDID detection - dw-hdmi-qp: Support Vendor-Specfic and SDP Infoframes; improve others - fsl-ldb: Fix visual artifacts plus related DT property 'enable-termination-resistor' - imx8qxp-pixel-link: Improve bridge reference handling - lt9611: Support Port-B-only input plus DT bindings - tda998x: Support DRM_BRIDGE_ATTACH_NO_CONNECTOR; Clean up - Support TH1520 HDMI plus DT bindings - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings - anx7625: Fix USB Type-C handling - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check - Support Lontium LT8713SX DP MST bridge plus DT bindings - analogix_dp: Use DP helpers for link training panel: - panel-jdi-lt070me05000: Use mipi-dsi multi functions - panel-edp: Support Add AUO B116XAT04.1 (HW: 1A); Support CMN N116BCL-EAK (C2); Support FriendlyELEC plus DT changes - panel-edp: Fix timings for BOE NV140WUM-N64 - ilitek-ili9882t: Allow GPIO calls to sleep - jadard: Support TAIGUAN XTI05101-01A - lxd: Support LXD M9189A plus DT bindings - mantix: Fix pixel clock; Clean up - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings - novatek: Support Novatek/Tianma NT37700F plus DT bindings - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3" - novatek-nt36672a: Use mipi_dsi_*_multi() functions - panel-edp: Support BOE NV153WUM-N42, CMN N153JCA-ELK, CSW MNF307QS3-2 - support Himax HX83121A plus DT bindings - support JuTouch JT070TM041 plus DT bindings - support Samsung S6E8FC0 plus DT bindings - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings - simple: support Tianma TM050RDH03 plus DT bindings amdgpu: - enable DC by default on CIK APUs - userq fence ioctl param size fixes - set panel_type to OLED for eDP - refactor DC i2c code - FAMS2 update - rework ttm handling to allow multiple engines - DC DCE 6.x cleanup - DC support for NUTMEG/TRAVIS DP bridge - DCN 4.2 support - GC12 idle power fix for compute - use struct drm_edid in non-DC code - enable NV12/P010 support on primary planes - support newer IP discovery tables - VCN/JPEG 5.0.2 support - GC/MES 12.1 updates - USERQ fixes - add DC idle state manager - eDP DSC seamless boot amdkfd: - GC 12.1 updates - non 4K page fixes xe: - basic Xe3p_LPG and NVL-P enabling patches - allow VM_BIND decompress support - add purgeable buffer object support - add xe_vm_get_property_ioctl - restrict multi-lrc to VCS/VECS engines - allow disabling VM overcommit in fault mode - dGPU memory optimizations - Workaround cleanups and simplification - Allow VFs VRAM quote changes using sysfs - convert GT stats to per-cpu counters - pagefault refactors - enable multi-queue on xe3p_xpc - disable DCC on PTL - make MMIO communication more robust - disable D3Cold for BMG on specific platforms - vfio: improve FLR sync for Xe VFIO i915/display: - C10/C20/LT PHY PLL divider verification - use trans push mechanism to generate PSR frame change on LNL+ - refactor DP DSC slice config - VGA decode refactoring - refactor DPT, gen2-4 overlay, masked field register macro helpers - refactor stolen memory allocation decisions - prepare for UHBR DP tunnels - refactor LT PHY PLL to use DPLL framework - implement register polling/waiting in display code - add shared stepping header between i915 and display i915: - fix potential overflow of shmem scatterlist length nouveau: - provide Z cull info to userspace - initial GA100 support - shutdown on PCI device shutdown nova-core: - harden GSP command queue - add support for large RPCs - simplify GSP sequencer and message handling - refactor falcon firmware handling - convert to new register macro - conver to new DMA coherent API - use checked arithmetic - add debugfs support for gsp-rm log buffers - fix aux device registration for multi-GPU msm: - CI: - Uprev mesa - Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices - Core: - Switched to of_get_available_child_by_name() - DPU: - Fixes for DSC panels - Fixed brownout because of the frequency / OPP mismatch - Quad pipe preparation (not enabled yet) - Switched to virtual planes by default - Dropped VBIF_NRT support - Added support for Eliza platform - Reworked alpha handling - Switched to correct CWB definitions on Eliza - Dropped dummy INTF_0 on MSM8953 - Corrected INTFs related to DP-MST - DP: - Removed debug prints looking into PHY internals - DSI: - Fixes for DSC panels - RGB101010 support - Support for SC8280XP - Moved PHY bindings from display/ to phy/ - GPU: - Preemption support for x2-85 and a840 - IFPC support for a840 - SKU detection support for x2-85 and a840 - Expose AQE support (VK ray-pipeline) - Avoid locking in VM_BIND fence signaling path - Fix to avoid reclaim in GPU snapshot path - Disallow foreign mapping of _NO_SHARE BOs - HDMI: - Fixed infoframes programming - MDP5: - Dropped support for MSM8974v1 - Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998 panthor: - add tracepoints for power and IRQs - fix fence handling - extend timestamp query with flags - support various sources for timestamp queries tyr: - fix names and model/versions rockchip: - vop2: use drm logging function - rk3576 displayport support - support CRTC background color atmel-hlcdc: - support sana5d65 LCD controller tilcdc: - use DT bindings schema - use managed DRM interfaces - support DRM_BRIDGE_ATTACH_NO_CONNECTOR verisilicon: - support DC8200 + DT bindings virtgpu: - support PRIME import with 3D enabled komeda: - fix integer overflow in AFBC checks mcde: - improve bridge handling gma500: - use drm client buffer for fbdev framebuffer amdxdna: - add sensors ioctls - provide NPU power estimate - support column utilization sensor - allow forcing DMA through IOMMU IOVA - support per-BO mem usage queries - refactor GEM implementation ivpu: - update boot API to v3.29.4 - limit per-user number of doorbells/contexts - perform engine reset on TDR error loongson: - replace custom code with drm_gem_ttm_dumb_map_offset() imx: - support planes behind the primary plane - fix bus-format selection vkms: - support CRTC background color v3d: - improve handling of struct v3d_stats komeda: - support Arm China Linlon D6 plus DT bindings imagination: - improve power-off sequence - support context-reset notification from firmware mediatek: - mtk_dsi: enable hs clock during pre-enable - Remove all conflicting aperture devices during probe - Add support for mt8167 display blocks -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmnfMHMACgkQDHTzWXnE hr4gEg/+Oaf6KBcvqNKPLwDlNeOvHap1n8oiy7SXvOKN2/KEAu/zGpEciJ7GsSge qdqY4xhEfp0JZLrTZiIIzFr38uzkanfOLdF2AQCVrfCRhlO7QLiUDxAAdDZUyINe kKLvNunxMwhzwsmRHEDL85cgPkhsxt2ux+tUOYZrEQ/ZbdupNrFw9q5ewmuYzGng HY8bsnB0jVwQ9IU/X6h+Xzr/19623/CZyUWJSuY1foKMhHMceyrCmpAFEqjFWn71 7zNYFlPEQtqa6qtIZXVbJB4mhd7NbmMW6s367xx+Sx+UJDDNfS6ku+hpISwxNuVX 7fOoEkhQ+ynIcxGkfOi5Q9j2/mV/WL/GEA/IUWfmX8l219WOrKY4w0NtCE4C78r7 QFGUR6w8Vi97FCP8NuA7Kix4J9eSr/FAzqoG0snAOQbVdaTSBr1hL0PeewD8BRry PUkCCh6J7jKA6POt4JZeU6mbJ3AMoOwS9BICi10R1R6EnIKNpKGVpAuYHk4B5+u3 X5vd1ds+8dJN/etaFYgIbirUocKx6zt9rT5i4/wPZIDPoCgZNofePtPCiJoTcnNN PUZUngcWLpftwW+kCUdc4lF1Q7nguQpXVpX0WJiSfqejshUTPXHPlmJV81GoNSHo fQMUXIjO5cAX0FKPBakSxxwFnOQFq4aZb6kRBt4lYgt+RJfzo3s= =GX7Q -----END PGP SIGNATURE----- Merge tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernel Pull drm updates from Dave Airlie: "Highlights: - new DRM RAS infrastructure using netlink - amdgpu: enable DC on CIK APUs, and more IP enablement, and more user queue work - xe: purgeable BO support, and new hw enablement - dma-buf : add revocable operations Full summary: mm: - two-pass MMU interval notifiers - add gpu active/reclaim per-node stat counters math: - provide __KERNEL_DIV_ROUND_CLOSEST() in UAPI - implement DIV_ROUND_CLOSEST() with __KERNEL_DIV_ROUND_CLOSEST() rust: - shared tag with driver-core: register macro and io infra - core: rework DMA coherent API - core: add interop::list to interop with C linked lists - core: add more num::Bounded operations - core: enable generic_arg_infer and add EMSGSIZE - workqueue: add ARef<T> support for work and delayed work - add GPU buddy allocator abstraction - add DRM shmem GEM helper abstraction - allow drm:::Device to dispatch work and delayed work items to driver private data - add dma_resv_lock helper and raw accessors core: - introduce DRM RAS infrastructure over netlink - add connector panel_type property - fourcc: add ARM interleaved 64k modifier - colorop: add destroy helper - suballoc: split into alloc and init helpers - mode: provide DRM_ARGB_GET*() macros for reading color components edid: - provide drm_output_color_Format dma-buf: - provide revoke mechanism for shared buffers - rename move_notify to invalidate_mappings - always enable move_notify - protect dma_fence_ops with RCU and improve locking - clean pages with helpers atomic: - allocate drm_private_state via callback - helper: use system_percpu_wq buddy: - make buddy allocator available to gpu level - add kernel-doc for buddy allocator - improve aligned allocation ttm: - fix fence signalling - improve tests and docs - improve handling of gfp_retry_mayfail - use per-node stat counters to track memory allocations - port pool to use list_lru - drop NUMA specific pools - make pool shrinker numa aware - track allocated pages per numa node coreboot: - cleanup coreboot framebuffer support sched: - fix race condition in drm_sched_fini pagemap: - enable THP support - pass pagemap_addr by reference gem-shmem: - Track page accessed/dirty status across mmap/vmap gpusvm: - reenable device to device migration - fix unbalanced unclock bridge: - anx7625: Support USB-C plus DT bindings - connector: Fix EDID detection - dw-hdmi-qp: Support Vendor-Specfic and SDP Infoframes; improve others - fsl-ldb: Fix visual artifacts plus related DT property 'enable-termination-resistor' - imx8qxp-pixel-link: Improve bridge reference handling - lt9611: Support Port-B-only input plus DT bindings - tda998x: Support DRM_BRIDGE_ATTACH_NO_CONNECTOR; Clean up - Support TH1520 HDMI plus DT bindings - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings - anx7625: Fix USB Type-C handling - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check - Support Lontium LT8713SX DP MST bridge plus DT bindings - analogix_dp: Use DP helpers for link training panel: - panel-jdi-lt070me05000: Use mipi-dsi multi functions - panel-edp: Support Add AUO B116XAT04.1 (HW: 1A); Support CMN N116BCL-EAK (C2); Support FriendlyELEC plus DT changes - panel-edp: Fix timings for BOE NV140WUM-N64 - ilitek-ili9882t: Allow GPIO calls to sleep - jadard: Support TAIGUAN XTI05101-01A - lxd: Support LXD M9189A plus DT bindings - mantix: Fix pixel clock; Clean up - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings - novatek: Support Novatek/Tianma NT37700F plus DT bindings - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3" - novatek-nt36672a: Use mipi_dsi_*_multi() functions - panel-edp: Support BOE NV153WUM-N42, CMN N153JCA-ELK, CSW MNF307QS3-2 - support Himax HX83121A plus DT bindings - support JuTouch JT070TM041 plus DT bindings - support Samsung S6E8FC0 plus DT bindings - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings - simple: support Tianma TM050RDH03 plus DT bindings amdgpu: - enable DC by default on CIK APUs - userq fence ioctl param size fixes - set panel_type to OLED for eDP - refactor DC i2c code - FAMS2 update - rework ttm handling to allow multiple engines - DC DCE 6.x cleanup - DC support for NUTMEG/TRAVIS DP bridge - DCN 4.2 support - GC12 idle power fix for compute - use struct drm_edid in non-DC code - enable NV12/P010 support on primary planes - support newer IP discovery tables - VCN/JPEG 5.0.2 support - GC/MES 12.1 updates - USERQ fixes - add DC idle state manager - eDP DSC seamless boot amdkfd: - GC 12.1 updates - non 4K page fixes xe: - basic Xe3p_LPG and NVL-P enabling patches - allow VM_BIND decompress support - add purgeable buffer object support - add xe_vm_get_property_ioctl - restrict multi-lrc to VCS/VECS engines - allow disabling VM overcommit in fault mode - dGPU memory optimizations - Workaround cleanups and simplification - Allow VFs VRAM quote changes using sysfs - convert GT stats to per-cpu counters - pagefault refactors - enable multi-queue on xe3p_xpc - disable DCC on PTL - make MMIO communication more robust - disable D3Cold for BMG on specific platforms - vfio: improve FLR sync for Xe VFIO i915/display: - C10/C20/LT PHY PLL divider verification - use trans push mechanism to generate PSR frame change on LNL+ - refactor DP DSC slice config - VGA decode refactoring - refactor DPT, gen2-4 overlay, masked field register macro helpers - refactor stolen memory allocation decisions - prepare for UHBR DP tunnels - refactor LT PHY PLL to use DPLL framework - implement register polling/waiting in display code - add shared stepping header between i915 and display i915: - fix potential overflow of shmem scatterlist length nouveau: - provide Z cull info to userspace - initial GA100 support - shutdown on PCI device shutdown nova-core: - harden GSP command queue - add support for large RPCs - simplify GSP sequencer and message handling - refactor falcon firmware handling - convert to new register macro - conver to new DMA coherent API - use checked arithmetic - add debugfs support for gsp-rm log buffers - fix aux device registration for multi-GPU msm: - CI: - Uprev mesa - Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices - Core: - Switched to of_get_available_child_by_name() - DPU: - Fixes for DSC panels - Fixed brownout because of the frequency / OPP mismatch - Quad pipe preparation (not enabled yet) - Switched to virtual planes by default - Dropped VBIF_NRT support - Added support for Eliza platform - Reworked alpha handling - Switched to correct CWB definitions on Eliza - Dropped dummy INTF_0 on MSM8953 - Corrected INTFs related to DP-MST - DP: - Removed debug prints looking into PHY internals - DSI: - Fixes for DSC panels - RGB101010 support - Support for SC8280XP - Moved PHY bindings from display/ to phy/ - GPU: - Preemption support for x2-85 and a840 - IFPC support for a840 - SKU detection support for x2-85 and a840 - Expose AQE support (VK ray-pipeline) - Avoid locking in VM_BIND fence signaling path - Fix to avoid reclaim in GPU snapshot path - Disallow foreign mapping of _NO_SHARE BOs - HDMI: - Fixed infoframes programming - MDP5: - Dropped support for MSM8974v1 - Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998 panthor: - add tracepoints for power and IRQs - fix fence handling - extend timestamp query with flags - support various sources for timestamp queries tyr: - fix names and model/versions rockchip: - vop2: use drm logging function - rk3576 displayport support - support CRTC background color atmel-hlcdc: - support sana5d65 LCD controller tilcdc: - use DT bindings schema - use managed DRM interfaces - support DRM_BRIDGE_ATTACH_NO_CONNECTOR verisilicon: - support DC8200 + DT bindings virtgpu: - support PRIME import with 3D enabled komeda: - fix integer overflow in AFBC checks mcde: - improve bridge handling gma500: - use drm client buffer for fbdev framebuffer amdxdna: - add sensors ioctls - provide NPU power estimate - support column utilization sensor - allow forcing DMA through IOMMU IOVA - support per-BO mem usage queries - refactor GEM implementation ivpu: - update boot API to v3.29.4 - limit per-user number of doorbells/contexts - perform engine reset on TDR error loongson: - replace custom code with drm_gem_ttm_dumb_map_offset() imx: - support planes behind the primary plane - fix bus-format selection vkms: - support CRTC background color v3d: - improve handling of struct v3d_stats komeda: - support Arm China Linlon D6 plus DT bindings imagination: - improve power-off sequence - support context-reset notification from firmware mediatek: - mtk_dsi: enable hs clock during pre-enable - Remove all conflicting aperture devices during probe - Add support for mt8167 display blocks" * tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernel: (1735 commits) drm/ttm/tests: Remove checks from ttm_pool_free_no_dma_alloc drm/ttm/tests: fix lru_count ASSERT drm/vram: remove DRM_VRAM_MM_FILE_OPERATIONS from docs drm/fb-helper: Fix a locking bug in an error path dma-fence: correct kernel-doc function parameter @flags ttm/pool: track allocated_pages per numa node. ttm/pool: make pool shrinker NUMA aware (v2) ttm/pool: drop numa specific pools ttm/pool: port to list_lru. (v2) drm/ttm: use gpu mm stats to track gpu memory allocations. (v4) mm: add gpu active/reclaim per-node stat counters (v2) gpu: nova-core: fix missing colon in SEC2 boot debug message gpu: nova-core: vbios: use from_le_bytes() for PCI ROM header parsing gpu: nova-core: bitfield: fix broken Default implementation gpu: nova-core: falcon: pad firmware DMA object size to required block alignment gpu: nova-core: gsp: fix undefined behavior in command queue code drm/shmem_helper: Make sure PMD entries get the writeable upgrade accel/ivpu: Trigger recovery on TDR with OS scheduling drm/msm: Use of_get_available_child_by_name() dt-bindings: display/msm: move DSI PHY bindings to phy/ subdir ... |
||
|
Tvrtko Ursulin
|
7daff375fa |
dma-fence: Silence sparse warning in dma_fence_describe
Sparse complains about assigning a string to a __rcu annotated local
variable:
drivers/dma-buf/dma-fence.c:1040:38: warning: incorrect type in initializer (different address spaces)
drivers/dma-buf/dma-fence.c:1040:38: expected char const [noderef] __rcu *timeline
drivers/dma-buf/dma-fence.c:1040:38: got char *
drivers/dma-buf/dma-fence.c:1041:36: warning: incorrect type in initializer (different address spaces)
drivers/dma-buf/dma-fence.c:1041:36: expected char const [noderef] __rcu *driver
drivers/dma-buf/dma-fence.c:1041:36: got char *
It is harmless but lets silence it.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Fixes:
|
||
|
Andi Shyti
|
2d76319c4c |
dma-buf: fix UAF in dma_buf_put() tracepoint
dma_buf_put() may drop the final file reference via fput(), which
can free the dma-buf. The new tracepoint invocation was added
after fput(), and DMA_BUF_TRACE() dereferences dmabuf and takes
dmabuf->name_lock.
This leads to a use-after-free on the final put, visible for
example as a spinlock bad magic fault on a poisoned 0x6b6b6b...
lock.
Move the dma_buf_put tracepoint before fput().
Reported-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Fixes:
|
||
|
Sumit Semwal
|
dc6d51959e |
dma-buf: fix htmldocs error for dma_buf_attach_revocable
linux-next testing showed this htmldoc error due to a missing extra
line in the comments; add it.
Fixes:
|
||
|
Jiri Pirko
|
78b30c50a7 |
dma-buf: heaps: system: add system_cc_shared heap for explicitly shared memory
Add a new "system_cc_shared" dma-buf heap to allow userspace to allocate shared (decrypted) memory for confidential computing (CoCo) VMs. On CoCo VMs, guest memory is private by default. The hardware uses an encryption bit in page table entries (C-bit on AMD SEV, "shared" bit on Intel TDX) to control whether a given memory access is private or shared. The kernel's direct map is set up as private, so pages returned by alloc_pages() are private in the direct map by default. To make this memory usable for devices that do not support DMA to private memory (no TDISP support), it has to be explicitly shared. A couple of things are needed to properly handle shared memory for the dma-buf use case: - set_memory_decrypted() on the direct map after allocation: Besides clearing the encryption bit in the direct map PTEs, this also notifies the hypervisor about the page state change. On free, the inverse set_memory_encrypted() must be called before returning pages to the allocator. If re-encryption fails, pages are intentionally leaked to prevent shared memory from being reused as private. - pgprot_decrypted() for userspace and kernel virtual mappings: Any new mapping of the shared pages, be it to userspace via mmap or to kernel vmalloc space via vmap, creates PTEs independent of the direct map. These must also have the encryption bit cleared, otherwise accesses through them would see encrypted (garbage) data. - DMA_ATTR_CC_SHARED for DMA mapping: Since the pages are already shared, the DMA API needs to be informed via DMA_ATTR_CC_SHARED so it can map them correctly as unencrypted for device access. On non-CoCo VMs, the system_cc_shared heap is not registered to prevent misuse by userspace that does not understand the security implications of explicitly shared memory. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20260325192352.437608-3-jiri@resnulli.us |
||
|
Maxime Ripard
|
25bd735629 |
dma: contiguous: Turn heap registration logic around
The CMA heap instantiation was initially developed by having the contiguous DMA code call into the CMA heap to create a new instance every time a reserved memory area is probed. Turning the CMA heap into a module would create a dependency of the kernel on a module, which doesn't work. Let's turn the logic around and do the opposite: store all the reserved memory CMA regions into the contiguous DMA code, and provide an iterator for the heap to use when it probes. Signed-off-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20260331-dma-buf-heaps-as-modules-v4-1-e18fda504419@kernel.org |
||
|
Linus Walleij
|
252b0e790d |
dma-buf: heaps: Clear CMA highages using helper
Currently the CMA allocator clears highmem pages using kmap()->clear_page()->kunmap(), but there is a helper static inline in <linux/highmem.h> that does the same for us so use clear_highpage() instead of open coding this. Suggested-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Linus Walleij <linusw@kernel.org> Link: https://patch.msgid.link/20260310-cma-heap-clear-pages-v2-2-ecbbed3d7e6d@kernel.org |
||
|
Linus Walleij
|
e669d2f601 |
dma-buf: heaps: Clear CMA pages with clear_pages()
As of commit
|
||
|
Jeff Layton
|
0b2600f81c
|
treewide: change inode->i_ino from unsigned long to u64
On 32-bit architectures, unsigned long is only 32 bits wide, which causes 64-bit inode numbers to be silently truncated. Several filesystems (NFS, XFS, BTRFS, etc.) can generate inode numbers that exceed 32 bits, and this truncation can lead to inode number collisions and other subtle bugs on 32-bit systems. Change the type of inode->i_ino from unsigned long to u64 to ensure that inode numbers are always represented as 64-bit values regardless of architecture. Update all format specifiers treewide from %lu/%lx to %llu/%llx to match the new type, along with corresponding local variable types. This is the bulk treewide conversion. Earlier patches in this series handled trace events separately to allow trace field reordering for better struct packing on 32-bit. Signed-off-by: Jeff Layton <jlayton@kernel.org> Link: https://patch.msgid.link/20260304-iino-u64-v3-12-2257ad83d372@kernel.org Acked-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
|
Bart Van Assche
|
01086b97dc |
dma-buf: Suppress a thread-safety complaint
Handle all possible dma_resv_lock() return values. This patch prepares for enabling compile-time thread-safety analysis. This will cause the compiler to check whether all dma_resv_lock() return values are handled. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20260227165501.2062829-1-bvanassche@acm.org |
||
|
Matthew Brost
|
2622649ad6 |
dma-buf: Assign separate lockdep class to array lock
dma_fence_array_enable_signaling() runs while holding the array
inline_lock and may add callbacks to underlying fences, which takes
their inline_lock.
Since both locks share the same lockdep class, this valid nesting
triggers a recursive locking warning. Assign a distinct lockdep class
to the array inline_lock so lockdep can correctly model the hierarchy.
Fixes:
|
||
|
Matthew Brost
|
2ec8653555 |
dma-buf: Assign separate lockdep class to chain lock
dma_fence_chain_enable_signaling() and runs while holding the chain
inline_lock and may add callbacks to underlying fences, which takes
their inline_lock.
Since both locks share the same lockdep class, this valid nesting
triggers a recursive locking warning. Assign a distinct lockdep class
to the chain inline_lock so lockdep can correctly model the hierarchy.
Fixes:
|
||
|
Leon Romanovsky
|
be6d4c9e9d |
dma-buf: Add dma_buf_attach_revocable()
Some exporters need a flow to synchronously revoke access to the DMA-buf by importers. Once revoke is completed the importer is not permitted to touch the memory otherwise they may get IOMMU faults, AERs, or worse. DMA-buf today defines a revoke flow, for both pinned and dynamic importers, which is broadly: dma_resv_lock(dmabuf->resv, NULL); // Prevent new mappings from being established priv->revoked = true; // Tell all importers to eventually unmap dma_buf_invalidate_mappings(dmabuf); // Wait for any inprogress fences on the old mapping dma_resv_wait_timeout(dmabuf->resv, DMA_RESV_USAGE_BOOKKEEP, false, MAX_SCHEDULE_TIMEOUT); dma_resv_unlock(dmabuf->resv, NULL); // Wait for all importers to complete unmap wait_for_completion(&priv->unmapped_comp); This works well, and an importer that continues to access the DMA-buf after unmapping it is very buggy. However, the final wait for unmap is effectively unbounded. Several importers do not support invalidate_mappings() at all and won't unmap until userspace triggers it. This unbounded wait is not suitable for exporters like VFIO and RDMA tha need to issue revoke as part of their normal operations. Add dma_buf_attach_revocable() to allow exporters to determine the difference between importers that can complete the above in bounded time, and those that can't. It can be called inside the exporter's attach op to reject incompatible importers. Document these details about how dma_buf_invalidate_mappings() works and what the required sequence is to achieve a full revocation. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-6-463d956bd527@nvidia.com |
||
|
Leon Romanovsky
|
575157b1b5 |
dma-buf: Make .invalidate_mapping() truly optional
The .invalidate_mapping() callback is documented as optional, yet it effectively became mandatory whenever importer_ops were provided. This led to cases where RDMA non-ODP code had to supply an empty stub. Relax the checks in the dma-buf core so the callback can be omitted, allowing RDMA code to drop the unnecessary function. Removing the stub allows the next patch to tell that RDMA does not support .invalidate_mapping() by checking for a NULL op. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-5-463d956bd527@nvidia.com |
||
|
Christian König
|
a408c0ca0c |
dma-buf: use inline lock for the dma-fence-chain
Using the inline lock is now the recommended way for dma_fence implementations. So use this approach for the framework's internal fences as well. Also saves about 4 bytes for the external spinlock. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/r/20260219160822.1529-9-christian.koenig@amd.com |
||
|
Christian König
|
5943243914 |
dma-buf: use inline lock for the dma-fence-array
Using the inline lock is now the recommended way for dma_fence implementations. So use this approach for the framework's internal fences as well. Also saves about 4 bytes for the external spinlock. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/r/20260219160822.1529-8-christian.koenig@amd.com |
||
|
Christian König
|
ed0d6a0003 |
dma-buf: use inline lock for the stub fence v2
Using the inline lock is now the recommended way for dma_fence implementations. So use this approach for the framework's internal fences as well. Also saves about 4 bytes for the external spinlock. v2: drop unnecessary changes Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/r/20260219160822.1529-7-christian.koenig@amd.com |
||
|
Christian König
|
3695d754ff |
dma-buf/selftests: test RCU ops and inline lock v2
Drop the mock_fence and the kmem_cache, instead use the inline lock and test if the ops are properly dropped after signaling. v2: move the RCU check to the end of the test Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Link: https://lore.kernel.org/r/20260219160822.1529-6-christian.koenig@amd.com |
||
|
Christian König
|
1f32f310a1 |
dma-buf: inline spinlock for fence protection v5
Implement per-fence spinlocks, allowing implementations to not give an
external spinlock to protect the fence internal state. Instead a spinlock
embedded into the fence structure itself is used in this case.
Shared spinlocks have the problem that implementations need to guarantee
that the lock lives at least as long all fences referencing them.
Using a per-fence spinlock allows completely decoupling spinlock producer
and consumer life times, simplifying the handling in most use cases.
v2: improve naming, coverage and function documentation
v3: fix one additional locking in the selftests
v4: separate out some changes to make the patch smaller,
fix one amdgpu crash found by CI systems
v5: improve comments
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-5-christian.koenig@amd.com
|
||
|
Christian König
|
3e5067931b |
dma-buf: abstract fence locking v2
Add dma_fence_lock_irqsafe() and dma_fence_unlock_irqrestore() wrappers
and mechanically apply them everywhere.
Just a pre-requisite cleanup for a follow up patch.
v2: add some missing i915 bits, add abstraction for lockdep assertion as
well
v3: one more suggestion by Tvrtko
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://lore.kernel.org/r/20260219160822.1529-4-christian.koenig@amd.com
|
||
|
Christian König
|
541c8f2468 |
dma-buf: detach fence ops on signal v3
When neither a release nor a wait backend ops is specified it is possible to let the dma_fence live on independently of the module who issued it. This makes it possible to unload drivers and only wait for all their fences to signal. v2: fix typo in comment v3: fix sparse rcu warnings Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/r/20260219160822.1529-3-christian.koenig@amd.com |
||
|
Christian König
|
f4cc3ab824 |
dma-buf: protected fence ops by RCU v8
The fence ops of a dma_fence currently need to life as long as the dma_fence is alive. This means that the module which originally issued a dma_fence can't unload unless all fences are freed up. As first step to solve this issue protect the fence ops by RCU. While it is counter intuitive to protect a constant function pointer table by RCU it allows modules to wait for an RCU grace period before they unload, to make sure that nobody is executing their functions any more. This patch has not much functional change, but only adds the RCU handling for the static checker to test. v2: make one the now duplicated lockdep warnings a comment instead. v3: Add more documentation to ->wait and ->release callback. v4: fix typo in documentation v5: rebased on drm-tip v6: improve code comments v7: improve commit message and code comments v8: fix sparse rcu warnings Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/r/20260219160822.1529-2-christian.koenig@amd.com |
||
|
Maxime Ripard
|
8b85987d3c
|
Merge drm/drm-next into drm-misc-next
Let's merge 7.0-rc1 to start the new drm-misc-next window Signed-off-by: Maxime Ripard <mripard@kernel.org> |
||
|
Linus Torvalds
|
32a92f8c89 |
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
323bbfcf1e |
Convert 'alloc_flex' family to use the new default GFP_KERNEL argument
This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
bf4afc53b7 |
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Kees Cook
|
69050f8d6d |
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org> |
||
|
Linus Torvalds
|
cebcffe666 |
VFIO updates for v7.0-rc1
- Update outdated mdev comment referencing the renamed
mdev_type_add() function. (Julia Lawall)
- Introduce selftest support for IOMMU mapping of PCI MMIO BARs.
(Alex Mastro)
- Relax selftest assertion relative to differences in huge page
handling between legacy (v1) TYPE1 IOMMU mapping behavior and
the compatibility mode supported by IOMMUFD. (David Matlack)
- Reintroduce memory poison handling support for non-struct-page-
backed memory in the nvgrace-gpu variant driver. (Ankit Agrawal)
- Replace dma_buf_phys_vec with phys_vec to avoid duplicate
structure and semantics. (Leon Romanovsky)
- Add missing upstream bridge locking across PCI function reset,
resolving an assertion failure when secondary bus reset is used
to provide that reset. (Anthony Pighin)
- Fixes to hisi_acc vfio-pci variant driver to resolve corner case
issues related to resets, repeated migration, and error injection
scenarios. (Longfang Liu, Weili Qian)
- Restrict vfio selftest builds to arm64 and x86_64, resolving
compiler warnings on 32-bit archs. (Ted Logan)
- Un-deprecate the fsl-mc vfio bus driver as a new maintainer has
stepped up. (Ioana Ciornei)
-----BEGIN PGP SIGNATURE-----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=F+FV
-----END PGP SIGNATURE-----
Merge tag 'vfio-v7.0-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
"A small cycle with the bulk in selftests and reintroducing poison
handling in the nvgrace-gpu driver. The rest are fixes, cleanups, and
some dmabuf structure consolidation.
- Update outdated mdev comment referencing the renamed
mdev_type_add() function (Julia Lawall)
- Introduce selftest support for IOMMU mapping of PCI MMIO BARs (Alex
Mastro)
- Relax selftest assertion relative to differences in huge page
handling between legacy (v1) TYPE1 IOMMU mapping behavior and the
compatibility mode supported by IOMMUFD (David Matlack)
- Reintroduce memory poison handling support for non-struct-page-
backed memory in the nvgrace-gpu variant driver (Ankit Agrawal)
- Replace dma_buf_phys_vec with phys_vec to avoid duplicate structure
and semantics (Leon Romanovsky)
- Add missing upstream bridge locking across PCI function reset,
resolving an assertion failure when secondary bus reset is used to
provide that reset (Anthony Pighin)
- Fixes to hisi_acc vfio-pci variant driver to resolve corner case
issues related to resets, repeated migration, and error injection
scenarios (Longfang Liu, Weili Qian)
- Restrict vfio selftest builds to arm64 and x86_64, resolving
compiler warnings on 32-bit archs (Ted Logan)
- Un-deprecate the fsl-mc vfio bus driver as a new maintainer has
stepped up (Ioana Ciornei)"
* tag 'vfio-v7.0-rc1' of https://github.com/awilliam/linux-vfio:
vfio/fsl-mc: add myself as maintainer
vfio: selftests: only build tests on arm64 and x86_64
hisi_acc_vfio_pci: fix the queue parameter anomaly issue
hisi_acc_vfio_pci: resolve duplicate migration states
hisi_acc_vfio_pci: update status after RAS error
hisi_acc_vfio_pci: fix VF reset timeout issue
vfio/pci: Lock upstream bridge for vfio_pci_core_disable()
types: reuse common phys_vec type instead of DMABUF open‑coded variant
vfio/nvgrace-gpu: register device memory for poison handling
mm: add stubs for PFNMAP memory failure registration functions
vfio: selftests: Drop IOMMU mapping size assertions for VFIO_TYPE1_IOMMU
vfio: selftests: Add vfio_dma_mapping_mmio_test
vfio: selftests: Align BAR mmaps for efficient IOMMU mapping
vfio: selftests: Centralize IOMMU mode name definitions
vfio/mdev: update outdated comment
|
||
|
Tvrtko Ursulin
|
62918542b7 |
dma-fence: Fix sparse warnings due __rcu annotations
__rcu annotations on the return types from dma_fence_driver_name() and
dma_fence_timeline_name() cause sparse to complain because both the
constant signaled strings, and the strings return by the dma_fence_ops are
not __rcu annotated.
For a simple fix it is easiest to cast them with __rcu added and undo the
smarts from the tracpoints side of things. There is no functional change
since the rest is left in place. Later we can consider changing the
dma_fence_ops return types too, and handle all the individual drivers
which define them.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Fixes:
|
||
|
Christian König
|
2bcbc706df |
dma-buf: add dma_fence_was_initialized function v2
Some driver use fence->ops to test if a fence was initialized or not.
The problem is that this utilizes internal behavior of the dma_fence
implementation.
So better abstract that into a function.
v2: use a flag instead of testing fence->ops, rename the function, move
to the beginning of the patch set.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://lore.kernel.org/r/20260120105655.7134-2-christian.koenig@amd.com
|
||
|
Leon Romanovsky
|
609fc8766d |
dma-buf: Always build with DMABUF_MOVE_NOTIFY
DMABUF_MOVE_NOTIFY was introduced in 2018 and has been marked as experimental and disabled by default ever since. Six years later, all new importers implement this callback. It is therefore reasonable to drop CONFIG_DMABUF_MOVE_NOTIFY and always build DMABUF with support for it enabled. Suggested-by: Christian König <christian.koenig@amd.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20260124-dmabuf-revoke-v5-3-f98fca917e96@nvidia.com Signed-off-by: Christian König <christian.koenig@amd.com> |
||
|
Leon Romanovsky
|
95308225e5 |
dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
Along with renaming the .move_notify() callback, rename the corresponding dma-buf core function. This makes the expected behavior clear to exporters calling this function. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20260124-dmabuf-revoke-v5-2-f98fca917e96@nvidia.com Signed-off-by: Christian König <christian.koenig@amd.com> |
||
|
Leon Romanovsky
|
ef246da8e6 |
dma-buf: Rename .move_notify() callback to a clearer identifier
Rename the .move_notify() callback to .invalidate_mappings() to make its purpose explicit and highlight that it is responsible for invalidating existing mappings. Suggested-by: Christian König <christian.koenig@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20260124-dmabuf-revoke-v5-1-f98fca917e96@nvidia.com Signed-off-by: Christian König <christian.koenig@amd.com> |
||
|
gaoxiang17
|
3b3ddafde1 |
dma-buf: add some tracepoints to debug.
Since we can only inspect dmabuf by iterating over process FDs or the
dmabuf_list, we need to add our own tracepoints to track its status in
real time in production.
For example:
binder:3016_1-3102 [006] ...1. 255.126521: dma_buf_export: exp_name=qcom,system size=12685312 ino=2738
binder:3016_1-3102 [006] ...1. 255.126528: dma_buf_fd: exp_name=qcom,system size=12685312 ino=2738 fd=8
binder:3016_1-3102 [006] ...1. 255.126642: dma_buf_mmap_internal: exp_name=qcom,system size=28672 ino=2739
kworker/6:1-86 [006] ...1. 255.127194: dma_buf_put: exp_name=qcom,system size=12685312 ino=2738
RenderThread-9293 [006] ...1. 316.618179: dma_buf_get: exp_name=qcom,system size=12771328 ino=2762 fd=176
RenderThread-9293 [006] ...1. 316.618195: dma_buf_dynamic_attach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0
RenderThread-9293 [006] ...1. 318.878220: dma_buf_detach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0
Signed-off-by: Xiang Gao <gaoxiang17@xiaomi.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260109115411.115270-1-gxxa03070307@gmail.com
|
||
|
Leon Romanovsky
|
b703b31ea8 |
types: reuse common phys_vec type instead of DMABUF open‑coded variant
After commit
|
||
|
T.J. Mercier
|
ab4c3dcf9a |
dma-buf: Remove DMA-BUF sysfs stats
Commit |
||
|
Eric Chanudet
|
3c227be906 |
dma-buf: system_heap: account for system heap allocation in memcg
The system dma-buf heap lets userspace allocate buffers from the page allocator. However, these allocations are not accounted for in memcg, allowing processes to escape limits that may be configured. Pass __GFP_ACCOUNT for system heap allocations, based on the dma_heap.mem_accounting parameter, to use memcg and account for them. Signed-off-by: Eric Chanudet <echanude@redhat.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://patch.msgid.link/20260116-dmabuf-heap-system-memcg-v3-2-ecc6b62cc446@redhat.com |
||
|
Eric Chanudet
|
bb33013bdd |
dma-buf: heaps: add parameter to account allocations using cgroup
Add a parameter to enable dma-buf heaps allocation accounting using cgroup for heaps that implement it. It is disabled by default as doing so incurs caveats based on how memcg currently accounts for shared buffers. Signed-off-by: Eric Chanudet <echanude@redhat.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://patch.msgid.link/20260116-dmabuf-heap-system-memcg-v3-1-ecc6b62cc446@redhat.com |
||
|
Linus Walleij
|
d42d701e13 |
dma-buf: heaps: Clear CMA pages with clear_page()
clear_page() translates into memset(*p, 0, PAGE_SIZE) on some architectures, but on the major architectures it will call an optimized assembly snippet so use this instead of open coding a memset(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nirmoy Das <nirmoyd@nvidia.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Signed-off-by: Linus Walleij <linusw@kernel.org> Link: https://patch.msgid.link/20251130-dma-buf-heap-clear-page-v1-1-a8dcea2a88ee@linaro.org |
||
|
gaoxiang17
|
281a226314 |
dma-buf: add some tracepoints to debug.
Since we can only inspect dmabuf by iterating over process FDs or the
dmabuf_list, we need to add our own tracepoints to track its status in
real time in production.
For example:
binder:3016_1-3102 [006] ...1. 255.126521: dma_buf_export: exp_name=qcom,system size=12685312 ino=2738
binder:3016_1-3102 [006] ...1. 255.126528: dma_buf_fd: exp_name=qcom,system size=12685312 ino=2738 fd=8
binder:3016_1-3102 [006] ...1. 255.126642: dma_buf_mmap_internal: exp_name=qcom,system size=28672 ino=2739
kworker/6:1-86 [006] ...1. 255.127194: dma_buf_put: exp_name=qcom,system size=12685312 ino=2738
RenderThread-9293 [006] ...1. 316.618179: dma_buf_get: exp_name=qcom,system size=12771328 ino=2762 fd=176
RenderThread-9293 [006] ...1. 316.618195: dma_buf_dynamic_attach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0
RenderThread-9293 [006] ...1. 318.878220: dma_buf_detach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0
Signed-off-by: Xiang Gao <gaoxiang17@xiaomi.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20251218062853.819744-1-gxxa03070307@gmail.com
Signed-off-by: Christian König <christian.koenig@amd.com>
|
||
|
Christian König
|
97f419848b |
dma-buf/selftests: drop the mock_wait implementation
Actually test the documented expectation of dma_fence_wait() instead of comming up with a mock_wait implementation which uses undocumented and non standard return codes and behavior. Additional to that increase the timeout to one second, otherwise the test case is a bit unreliable. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Link: https://lore.kernel.org/r/346e3df8-5f3a-4394-9d90-4ba107294161@ursulin.net |
||
|
Maxime Ripard
|
7f790dd21a
|
Merge drm/drm-next into drm-misc-next
Let's kickstart the v6.20 (7.0?) release cycle. Signed-off-by: Maxime Ripard <mripard@kernel.org> |
||
|
Christian König
|
646013f513 |
dma-buf: enable DMABUF_DEBUG by default on DEBUG kernels
The overhead of enforcing the DMA-buf rules for importers is now so low that it safe to enable it by default on DEBUG kernels. This will hopefully result in fixing more issues in importers. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Link: https://lore.kernel.org/r/20251205130604.1582-2-christian.koenig@amd.com |
||
|
Christian König
|
51db5336e1 |
dma-buf: improve sg_table debugging hack v4
This debugging hack is important to enforce the rule that importers should *never* touch the underlying struct page of the exporter. Instead of just mangling the page link create a copy of the sg_table but only copy over the DMA addresses and not the pages. This will cause a NULL pointer de-reference if the importer tries to touch the struct page. Still quite a hack but this at least allows the exporter to properly keeps it's sg_table intact while allowing the DMA-buf maintainer to find and fix misbehaving importers and finally switch over to using a different data structure in the future. v2: improve the hack further by using a wrapper structure and explaining the background a bit more in the commit message. v3: fix some whitespace issues, use sg_assign_page(). v4: give the functions a better name Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Link: https://lore.kernel.org/r/20251205130604.1582-1-christian.koenig@amd.com |
||
|
Linus Torvalds
|
a3ebb59eee |
VFIO updates for v6.19-rc1
- 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)
-----BEGIN PGP SIGNATURE-----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=tpee
-----END PGP SIGNATURE-----
Merge tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio
Pull 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
...
|
||
|
Linus Torvalds
|
6dfafbd029 |
drm-next for 6.19-rc1:
new driver:
- Arm Ethos-U65/U85 accel driver
core:
- support the drm color pipeline in vkms/amdgfx
- add support for drm colorop pipeline
- add COLOR PIPELINE plane property
- add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE
- throttle dirty worker with vblank
- use drm_for_each_bridge_in_chain_scoped in drm's bridge code
- Ensure drm_client_modeset tests are enabled in UML
- add simulated vblank interrupt - use in drivers
- dumb buffer sizing helper
- move freeing of drm client memory to driver
- crtc sharpness strength property
- stop using system_wq in scheduler/drivers
- support emergency restore in drm-client
rust:
- make slice::as_flattened usable on all supported rustc
- add FromBytes::from_bytes_prefix() method
- remove redundant device ptr from Rust GEM object
- Change how AlwaysRefCounted is implemented for GEM objects
gpuvm:
- Add deferred vm_bo cleanup to GPUVM (for rust)
atomic:
- cleanup and improve state handling interfaces
buddy:
- optimize block management
dma-buf:
- heaps: Create heap per CMA reserved location
- improve userspace documentation
dp:
- add POST_LT_ADJ_REQ training sequence
- DPCD dSC quirk for synaptics panamera devices
- helpers to query branch DSC max throughput
ttm:
- Rename ttm_bo_put to ttm_bo_fini
- allow page protection flags on risc-v
- rework pipelined eviction fence handling
amdgpu:
- enable amdgpu by default for SI/CI dGPUs
- enable DC by default on SI
- refactor CIK/SI enablement
- add ABM KMS property
- Re-enable DM idle optimizations
- DC Analog encoders support
- Powerplay fixes for fiji/iceland
- Enable DC on bonaire by default
- HMM cleanup
- Add new RAS framework
- DML2.1 updates
- YCbCr420 fixes
- DC FP fixes
- DMUB fixes
- LTTPR fixes
- DTBCLK fixes
- DMU cursor offload handling
- Userq validation improvements
- Unify shutdown callback handling
- Suspend improvements
- Power limit code cleanup
- SR-IOV fixes
- AUX backlight fixes
- DCN 3.5 fixes
- HDMI compliance fixes
- DCN 4.0.1 cursor updates
- DCN interrupt fix
- DC KMS full update improvements
- Add additional HDCP traces
- DCN 3.2 fixes
- DP MST fixes
- Add support for new SR-IOV mailbox interface
- UQ reset support
- HDP flush rework
- VCE1 support
amdkfd:
- HMM cleanups
- Relax checks on save area overallocations
- Fix GPU mappings after prefetch
radeon:
- refactor CIK/SI enablement.
xe:
- Initial Xe3P support
- panic support on VRAM for display
- fix stolen size check
- Loosen used tracking restriction
- New SR-IOV debugfs structure and debugfs updates
- Hide the GPU madvise flag behind a VM_BIND flag
- Always expose VRAM provisioning data on discrete GPUs
- Allow VRAM mappings for userptr when used with SVM
- Allow pinning of p2p dma-buf
- Use per-tile debugfs where appropriate
- Add documentation for Execution Queues
- PF improvements
- VF migration recovery redesign work
- User / Kernel VRAM partitioning
- Update Tile-based messages
- Allow configfs to disable specific GT types
- VF provisioning and migration improvements
- use SVM range helpers in PT layer
- Initial CRI support
- access VF registers using dedicated MMIO view
- limit number of jobs per exec queue
- add sriov_admin sysfs tree
- more crescent island specific support
- debugfs residency counter
- SRIOV migration work
- runtime registers for GFX 35
i915:
- add initial Xe3p_LPD display version 35 support
- Enable LNL+ content adaptive sharpness filter
- Use optimized VRR guardband
- Enable Xe3p LT PHY
- enable FBC support for Xe3p_LPD display
- add display 30.02 firmware support
- refactor SKL+ watermark latency setup
- refactor fbdev handling
- call i915/xe runtime PM via function pointers
- refactor i915/xe stolen memory/display interfaces
- use display version instead of gfx version in display code
- extend i915_display_info with Type-C port details
- lots of display cleanups/refactorings
- set O_LARGEFILE in __create_shmem
- skuip guc communication warning on reset
- fix time conversions
- defeature DRRS on LNL+
- refactor intel_frontbuffer split between i915/xe/display
- convert inteL_rom interfaces to struct drm_device
- unify display register polling interfaces
- aovid lock inversion when pinning to GGTT on CHV/BXT+VTD
panel:
- Add KD116N3730A08/A12, chromebook mt8189
- JT101TM023, LQ079L1SX01,
- GLD070WX3-SL01 MIPI DSI
- Samsung LTL106AL0, Samsung LTL106AL01
- Raystar RFF500F-AWH-DNN
- Winstar WF70A8SYJHLNGA,
- Wanchanglong w552946aaa
- Samsung SOFEF00
- Lenovo X13s panel.
- ilitek-ili9881c : add rpi 5" support
- visionx-rm69299 - add backlight support
- edp - support AUI B116XAN02.0
bridge:
- improve ref counting
- ti-sn65dsi86 - add support for DP mode with HPD
- synopsis: support CEC, init timer with correct freq
- ASL CS5263 DP-to-HDMI bridge support
nova-core:
- introduce bitfield! macro
- introduce safe integer converters
- GSP inits to fully booted state on Ampere
- Use more future-proof register for GPU identification
nova-drm:
- select NOVA_CORE
- 64-bit only
nouveau:
- improve reclocking on tegra 186+
- add large page and compression support
msm:
- GPU:
- Gen8 support: A840 (Kaanapali) and X2-85 (Glymur)
- A612 support
- MDSS:
- Added support for Glymur and QCS8300 platforms
- DPU:
- Enabled Quad-Pipe support, unlocking higher resolutions support
- Added support for Glymur platform
- Documented DPU on QCS8300 platform as supported
- DisplayPort:
- Added support for Glymur platform
- Added support lame remapping inside DP block
- Documented DisplayPort controller on QCS8300 and SM6150/QCS615 as
supported
tegra:
- NVJPG driver
panfrost:
- display JM contexts over debugfs
- export JM contexts to userspace
- improve error and job handling
panthor:
- support custom ASN_HASH for mt8196
- support mali-G1 GPU
- flush shmem write before mapping buffers uncached
- make timeout per-queue instead of per-job
mediatek:
- MT8195/88 HDMIv2/DDCv2 support
rockchip:
- dsi: add support for RK3368
amdxdna:
- enhance runtime PM
- last hardware error reading uapi
- support firmware debug output
- add resource and telemetry data uapi
- preemption support
imx:
- add driver for HDMI TX Parallel audio interface
ivpu:
- add support for user-managed preemption buffer
- add userptr support
- update JSM firware API to 3.33.0
- add better alloc/free warnings
- fix page fault in unbind all bos
- rework bind/unbind of imported buffers
- enable MCA ECC signalling
- split fw runtime and global memory buffers
- add fdinfo memory statistics
tidss:
- convert to drm logging
- logging cleanup
ast:
- refactor generation init paths
- add per chip generation detect_tx_chip
- set quirks for each chip model
atmel-hlcdc:
- set LCDC_ATTRE register in plane disable
- set correct values for plane scaler
solomon:
- use drm helper for get_modes and move_valid
sitronix:
- fix output position when clearing screens
qaic:
- support dma-buf exports
- support new firmware's READ_DATA implementation
- sahara AIC200 image table update
- add sysfs support
- add coredump support
- add uevents support
- PM support
sun4i:
- layer refactors to decouple plane from output
- improve DE33 support
vc4:
- switch to generic CEC helpers
komeda:
- use drm_ logging functions
vkms:
- configfs support for display configuration
vgem:
- fix fence timer deadlock
etnaviv:
- add HWDB entry for GC8000 Nano Ultra VIP r6205
-----BEGIN PGP SIGNATURE-----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=gpnQ
-----END PGP SIGNATURE-----
Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"There was a rather late merge of a new color pipeline feature, that
some userspace projects are blocked on, and has seen a lot of work in
amdgpu. This should have seen some time in -next. There is additional
support for this for Intel, that if it arrives in the next day or two
I'll pass it on in another pull request and you can decide if you want
to take it.
Highlights:
- Arm Ethos NPU accelerator driver
- new DRM color pipeline support
- amdgpu will now run discrete SI/CIK cards instead of radeon, which
enables vulkan support in userspace
- msm gets gen8 gpu support
- initial Xe3P support in xe
Full detail summary:
New driver:
- Arm Ethos-U65/U85 accel driver
Core:
- support the drm color pipeline in vkms/amdgfx
- add support for drm colorop pipeline
- add COLOR PIPELINE plane property
- add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE
- throttle dirty worker with vblank
- use drm_for_each_bridge_in_chain_scoped in drm's bridge code
- Ensure drm_client_modeset tests are enabled in UML
- add simulated vblank interrupt - use in drivers
- dumb buffer sizing helper
- move freeing of drm client memory to driver
- crtc sharpness strength property
- stop using system_wq in scheduler/drivers
- support emergency restore in drm-client
Rust:
- make slice::as_flattened usable on all supported rustc
- add FromBytes::from_bytes_prefix() method
- remove redundant device ptr from Rust GEM object
- Change how AlwaysRefCounted is implemented for GEM objects
gpuvm:
- Add deferred vm_bo cleanup to GPUVM (for rust)
atomic:
- cleanup and improve state handling interfaces
buddy:
- optimize block management
dma-buf:
- heaps: Create heap per CMA reserved location
- improve userspace documentation
dp:
- add POST_LT_ADJ_REQ training sequence
- DPCD dSC quirk for synaptics panamera devices
- helpers to query branch DSC max throughput
ttm:
- Rename ttm_bo_put to ttm_bo_fini
- allow page protection flags on risc-v
- rework pipelined eviction fence handling
amdgpu:
- enable amdgpu by default for SI/CI dGPUs
- enable DC by default on SI
- refactor CIK/SI enablement
- add ABM KMS property
- Re-enable DM idle optimizations
- DC Analog encoders support
- Powerplay fixes for fiji/iceland
- Enable DC on bonaire by default
- HMM cleanup
- Add new RAS framework
- DML2.1 updates
- YCbCr420 fixes
- DC FP fixes
- DMUB fixes
- LTTPR fixes
- DTBCLK fixes
- DMU cursor offload handling
- Userq validation improvements
- Unify shutdown callback handling
- Suspend improvements
- Power limit code cleanup
- SR-IOV fixes
- AUX backlight fixes
- DCN 3.5 fixes
- HDMI compliance fixes
- DCN 4.0.1 cursor updates
- DCN interrupt fix
- DC KMS full update improvements
- Add additional HDCP traces
- DCN 3.2 fixes
- DP MST fixes
- Add support for new SR-IOV mailbox interface
- UQ reset support
- HDP flush rework
- VCE1 support
amdkfd:
- HMM cleanups
- Relax checks on save area overallocations
- Fix GPU mappings after prefetch
radeon:
- refactor CIK/SI enablement
xe:
- Initial Xe3P support
- panic support on VRAM for display
- fix stolen size check
- Loosen used tracking restriction
- New SR-IOV debugfs structure and debugfs updates
- Hide the GPU madvise flag behind a VM_BIND flag
- Always expose VRAM provisioning data on discrete GPUs
- Allow VRAM mappings for userptr when used with SVM
- Allow pinning of p2p dma-buf
- Use per-tile debugfs where appropriate
- Add documentation for Execution Queues
- PF improvements
- VF migration recovery redesign work
- User / Kernel VRAM partitioning
- Update Tile-based messages
- Allow configfs to disable specific GT types
- VF provisioning and migration improvements
- use SVM range helpers in PT layer
- Initial CRI support
- access VF registers using dedicated MMIO view
- limit number of jobs per exec queue
- add sriov_admin sysfs tree
- more crescent island specific support
- debugfs residency counter
- SRIOV migration work
- runtime registers for GFX 35
i915:
- add initial Xe3p_LPD display version 35 support
- Enable LNL+ content adaptive sharpness filter
- Use optimized VRR guardband
- Enable Xe3p LT PHY
- enable FBC support for Xe3p_LPD display
- add display 30.02 firmware support
- refactor SKL+ watermark latency setup
- refactor fbdev handling
- call i915/xe runtime PM via function pointers
- refactor i915/xe stolen memory/display interfaces
- use display version instead of gfx version in display code
- extend i915_display_info with Type-C port details
- lots of display cleanups/refactorings
- set O_LARGEFILE in __create_shmem
- skuip guc communication warning on reset
- fix time conversions
- defeature DRRS on LNL+
- refactor intel_frontbuffer split between i915/xe/display
- convert inteL_rom interfaces to struct drm_device
- unify display register polling interfaces
- aovid lock inversion when pinning to GGTT on CHV/BXT+VTD
panel:
- Add KD116N3730A08/A12, chromebook mt8189
- JT101TM023, LQ079L1SX01,
- GLD070WX3-SL01 MIPI DSI
- Samsung LTL106AL0, Samsung LTL106AL01
- Raystar RFF500F-AWH-DNN
- Winstar WF70A8SYJHLNGA
- Wanchanglong w552946aaa
- Samsung SOFEF00
- Lenovo X13s panel
- ilitek-ili9881c - add rpi 5" support
- visionx-rm69299 - add backlight support
- edp - support AUI B116XAN02.0
bridge:
- improve ref counting
- ti-sn65dsi86 - add support for DP mode with HPD
- synopsis: support CEC, init timer with correct freq
- ASL CS5263 DP-to-HDMI bridge support
nova-core:
- introduce bitfield! macro
- introduce safe integer converters
- GSP inits to fully booted state on Ampere
- Use more future-proof register for GPU identification
nova-drm:
- select NOVA_CORE
- 64-bit only
nouveau:
- improve reclocking on tegra 186+
- add large page and compression support
msm:
- GPU:
- Gen8 support: A840 (Kaanapali) and X2-85 (Glymur)
- A612 support
- MDSS:
- Added support for Glymur and QCS8300 platforms
- DPU:
- Enabled Quad-Pipe support, unlocking higher resolutions support
- Added support for Glymur platform
- Documented DPU on QCS8300 platform as supported
- DisplayPort:
- Added support for Glymur platform
- Added support lame remapping inside DP block
- Documented DisplayPort controller on QCS8300 and SM6150/QCS615
as supported
tegra:
- NVJPG driver
panfrost:
- display JM contexts over debugfs
- export JM contexts to userspace
- improve error and job handling
panthor:
- support custom ASN_HASH for mt8196
- support mali-G1 GPU
- flush shmem write before mapping buffers uncached
- make timeout per-queue instead of per-job
mediatek:
- MT8195/88 HDMIv2/DDCv2 support
rockchip:
- dsi: add support for RK3368
amdxdna:
- enhance runtime PM
- last hardware error reading uapi
- support firmware debug output
- add resource and telemetry data uapi
- preemption support
imx:
- add driver for HDMI TX Parallel audio interface
ivpu:
- add support for user-managed preemption buffer
- add userptr support
- update JSM firware API to 3.33.0
- add better alloc/free warnings
- fix page fault in unbind all bos
- rework bind/unbind of imported buffers
- enable MCA ECC signalling
- split fw runtime and global memory buffers
- add fdinfo memory statistics
tidss:
- convert to drm logging
- logging cleanup
ast:
- refactor generation init paths
- add per chip generation detect_tx_chip
- set quirks for each chip model
atmel-hlcdc:
- set LCDC_ATTRE register in plane disable
- set correct values for plane scaler
solomon:
- use drm helper for get_modes and move_valid
sitronix:
- fix output position when clearing screens
qaic:
- support dma-buf exports
- support new firmware's READ_DATA implementation
- sahara AIC200 image table update
- add sysfs support
- add coredump support
- add uevents support
- PM support
sun4i:
- layer refactors to decouple plane from output
- improve DE33 support
vc4:
- switch to generic CEC helpers
komeda:
- use drm_ logging functions
vkms:
- configfs support for display configuration
vgem:
- fix fence timer deadlock
etnaviv:
- add HWDB entry for GC8000 Nano Ultra VIP r6205"
* tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel: (1869 commits)
Revert "drm/amd: Skip power ungate during suspend for VPE"
drm/amdgpu: use common defines for HUB faults
drm/amdgpu/gmc12: add amdgpu_vm_handle_fault() handling
drm/amdgpu/gmc11: add amdgpu_vm_handle_fault() handling
drm/amdgpu: use static ids for ACP platform devs
drm/amdgpu/sdma6: Update SDMA 6.0.3 FW version to include UMQ protected-fence fix
drm/amdgpu: Forward VMID reservation errors
drm/amdgpu/gmc8: Delegate VM faults to soft IRQ handler ring
drm/amdgpu/gmc7: Delegate VM faults to soft IRQ handler ring
drm/amdgpu/gmc6: Delegate VM faults to soft IRQ handler ring
drm/amdgpu/gmc6: Cache VM fault info
drm/amdgpu/gmc6: Don't print MC client as it's unknown
drm/amdgpu/cz_ih: Enable soft IRQ handler ring
drm/amdgpu/tonga_ih: Enable soft IRQ handler ring
drm/amdgpu/iceland_ih: Enable soft IRQ handler ring
drm/amdgpu/cik_ih: Enable soft IRQ handler ring
drm/amdgpu/si_ih: Enable soft IRQ handler ring
drm/amd/display: fix typo in display_mode_core_structs.h
drm/amd/display: fix Smart Power OLED not working after S4
drm/amd/display: Move RGB-type check for audio sync to DCE HW sequence
...
|
||
|
Philipp Stanner
|
88e721ab97 |
dma-buf/dma-fence: Remove return code of signaling-functions
All functions used for signaling a fence return an error code whose sole purpose is to tell whether a fence was already signaled. This is racy and has been used by almost no party in the kernel, and the few users have been removed in preceding cleanup commits. Turn all signaling-functions into void-functions. Suggested-by: Christian König <christian.koenig@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20251201105011.19386-9-phasta@kernel.org |