kernel/git/next/linux-next.git/drivers/gpu, branch master

Merge branch 'headers' of git://git.infradead.org/users/willy/pagecache.git

2026-08-28T13:15:25+00:00

# Conflicts: # net/ceph/osd_client.c

Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev.git

2026-08-28T13:11:57+00:00

Merge branch 'drm-xe-next' of https://gitlab.freedesktop.org/drm/xe/kernel.git

2026-08-28T13:11:52+00:00

# Conflicts: # drivers/gpu/drm/xe/xe_i2c.c

Merge branch 'drm-next' of https://gitlab.freedesktop.org/drm/kernel.git

2026-08-28T12:55:08+00:00

Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git

2026-08-28T12:34:53+00:00

# Conflicts: # drivers/accel/ethosu/ethosu_drv.c # drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h # drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/disp.c

Merge branch 'msm-fixes' of https://gitlab.freedesktop.org/drm/msm.git

2026-08-28T12:34:45+00:00

Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/i915/kernel.git

2026-08-28T12:34:18+00:00

Merge tag 'amd-drm-next-7.3-2026-08-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2026-08-28T03:31:33+00:00

amd-drm-next-7.3-2026-08-27: amdgpu: - MES fixes - Userq fixes - UVD fix - VCE 3 fix - Enforce isolation fix - HPD fix for VGA/LVDS - DML fix - DCN 6 fixes - DC gpu reset fix amdkfd: - CU occupancy for GFX 11 - CU occupancy for GFX 12/12.1 - Queue bounds checking fix - SVM fixes - CRIU bounds checking fix Signed-off-by: Dave Airlie From: Alex Deucher Link: https://patch.msgid.link/20260827203610.3249084-1-alexander.deucher@amd.com

drm/xe: Add debugfs knob to control GPGPU preemption granularity

2026-08-27T21:35:57+00:00

Introduce a per-GT debugfs knob, 'gpgpu_preemption_level', to allow overriding the GPGPU preemption level on a per-context basis for newly created LRCs. Add an RTP rule to enable per-context control via FF_SLICE_CS_CHICKEN1, allowing the preemption level to be programmed directly into the LRC image at CTX_CS_CHICKEN1 during context initialization. v9: - Move the per-context/GT-scoped behavior description from the enum kerneldoc to the gpgpu_preemption_level member kerneldoc, and drop the kzalloc zero-initialization note. (Gustavo) v8: - Encapsulate LRC preemption programming into xe_lrc_set_gpgpu_preemption_level() (Gustavo) - Add xe_gt_WARN and early return for unexpected preemption level values to prevent invalid CS_CHICKEN1 programming. (Gustavo) - Change -EPERM to -EINVAL for MTP fused off check (Gustavo) - Combine FF_SLICE_CS_CHICKEN1 RTP rule using OR macro (Gustavo) v7: - Restrict XEHP_FUSE4 read to Xe2+ primary GTs to prevent invalid Media GT accesses and SR-IOV warnings. (Sashiko) v6: - Add missing xe_gt_printk.h include to fix compilation failure. v5: - Use correct offset for CTX_CS_CHICKEN1. (Matt) - Restrict to the RCS engine. (Matt) - Drop LRC layout table modifications; dummy layouts do not need late context registers. (Matt) - Stash WMTP fuse state at boot to remove pm/forcewake from debugfs. (Matt) - Rename debugfs knob to 'gpgpu_preemption_level'. (Matt) - Use simple_write_to_buffer() and remove unnecessary READ_ONCE/ WRITE_ONCE macros. (Matt) - Do not restrict debugfs visibility for SR-IOV VFs. (Matt) v4 - Fix incorrect NOP padding in the RCS context layout. (Sashiko) v3: - Wrapped XEHP_FUSE4 forcewake read with xe_pm_runtime_get/put to prevent PCIe aborts/timeouts when the GPU is in D3hot/D3cold. (sashiko) - Fixed NOP macro truncation by splitting padding offsets larger than 0x7f into multiple NOPs, ensuring correct context layout. (sashiko) - Converted CTX_CS_CHICKEN1 initialization to a read-modify-write sequence to avoid overwriting golden context mask bits. (sashiko) - Removed the FF_SLICE_CS_CHICKEN1 workaround for CCS engines, as compute engines lack this 3D fixed-function register, which was causing GuC "illegal register" panics on initialization. v2: - Dropped the WA BB/MI_LRI path; per Bspec, CS_CHICKEN1 is context save/restore state at DW 0x00E2, so we map CTX_CS_CHICKEN1 and program it directly in LRC init via xe_lrc_write_ctx_reg(). (Matt) - Split Xe2 CCS context offsets into a dedicated xe2_ccs_offsets array to map CS_CHICKEN1 without polluting other XCS engines. - Converted the debugfs interface from a binary boolean to a multi-option string knob ("default", "mid-thread", "thread-group", "command"). (Gustavo) - Restricted file creation to the Physical Function (!IS_SRIOV_VF). (Gustavo) - Added kernel tainting (TAINT_USER) when deviating from defaults. (Gustavo) - Added power-safe hardware fuse check (FUSE4 register 0x9114[20], CFEG_WMTP_DISABLE) before allowing MTP selection. (Matt) Signed-off-by: Varun Gupta Reviewed-by: Gustavo Sousa Reviewed-by: Matt Roper Link: https://patch.msgid.link/20260827072106.1138741-2-varun.gupta@intel.com Signed-off-by: Matt Roper

Merge tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-08-27T16:17:06+00:00

Pull more MM updates from Andrew Morton: - "mm/rmap: index MAP_PRIVATE file-backed folios by anonymous pgoff" (Lorenzo Stoakes) Index MAP_PRIVATE file-backed folios by their anonymous page offset to resolve confusion around reverse mapping for zeroed and CoW'd file-backed memory. Use this new VMA anonymous page offset tracking to eliminate index conflicts and lay the foundation for scalable CoW performance improvements. - "promote mapped executable folios after first usage for MGLRU" (Baolin Wang) Make MGLRU's protection of mapped executable file folios more reliable. Follow the classical LRU's logic, promoting mapped executable file folios after their first usage to give executable code a better chance to stay in memory and improve workload performance. - "mm: vmscan: fix node reclaim ignoring swappiness parameter" (Ridong Chen) Fix per-node proactive reclaim interface's ignoring the swappiness parameter when CONFIG_MEMCG is disabled by consolidating sc_swappiness() into a single function that checks proactive_swappiness regardless of kernel configuration. - "mm/vmscan: reduce lru_lock contention via vmstat-derived scan-balance cost" (Usama Arif) Reduce lru_lock contention in the reclaim path by deriving scan-balance costs from vmstat counters rather than lock-acquired producer updates. Read and decay these cost signals on the reclaim side under a dedicated per-lruvec lock, reducing total LRU lock wait time by over 60% without impacting scan throughput. - "zram: fix zram issues reported by sashiko" (Sergey Senozhatsky) Fix two low-risk zram bugs which Sashiko spotted in drive-by review. - "Honor XA_FLAGS_ACCOUNT in xas_split_alloc() and charge to folio's memcg" (Zi Yan) Fix xas_split_alloc() by enabling target folio memcg charging during splits and adding the missing __GFP_ACCOUNT flag for proper XArray node memory accounting. - "selftests/mm: use pattern matching in .gitignore" (Pratyush Mallick) Replace hardcoded binary names in selftests/mm/.gitignore with a generic pattern-matching rule to automatically ignore generated test files and avoid manual updates when adding new tests. - "mm/page_ext: remove pgdat_page_ext_init()" (Sang-Heon Jeon) Make the incompatibility between FLATMEM and NUMA explicit in mm/Kconfig and remove the unused pgdat_page_ext_init() function. - "zram: fix zstd error paths and add parameter validation" (Haoqin Huang) Clean up zram compression backends by removing redundant error cleanup, adding parameter and dictionary validation, auto-prefixing algorithm error logs, and resetting parameters prior to reinitialization. - "zram: fix stale scan bounds after reinitialization" (Longlong Xia) Prevent out-of-bounds slot accesses during concurrent zram resets by moving table scan bound calculations under dev_lock in writeback_store() and read_block_state(). - "add anon mTHP collapse test cases" (Baolin Wang) Extend selftests helper functions to support arbitrary page orders and add new test cases and options for mTHP collapse in khugepaged. - "selftests/mm: Handle unsupported and transient test conditions" (Muhammad Usama Anjum) Update MM selftests to report a SKIP status instead of a failure when required kernel or filesystem features are unsupported, while adding retry logic for transient page migration errors. - "mm/zswap: Fixes and improves the zswap shrink" (Hao Jia) Fix the missing zswap global shrinker when CONFIG_MEMCG is disabled and extend shrink_memcg() to support batch writeback for improved writeback efficiency. - "alloc_tag: introduce IOCTL-based filtering for MAP" (Suren Baghdasaryan) Introduce an IOCTL-based binary interface for memory allocation profiling that enables kernel-side filtering before per-CPU counter aggregation. This eliminates the text-parsing overhead of /proc/allocinfo and provides up to a 20x speedup by transferring only filtered allocation data to userspace. - "better block swap batching and a different take on swap_ops v5" (Christoph Hellwig) Refactor block swap I/O to use swap_iocb for batching instead of single-bio requests and rebase the swap_ops interface, achieving faster swap throughput during kernel builds. - "mm: kmemleak: reduce transient false positives by confirming leaks" (Catalin Marinas) Reduce false-positive kmemleak reports by combining two kmemleak enhancements that add a second confirmation scan and a configurable minimum unreferenced scan count module parameter. - "mm: kmemleak: default min_unref_scans to 2 for verbose kernels" (Breno Leitao) Auto-scanning kernels can generate false-positive memory leak reports on single scans, so this patch defaults min_unref_scans to 2 when CONFIG_DEBUG_KMEMLEAK_VERBOSE is enabled to require a second confirming scan. - "swap_ops updates" (Christoph Hellwig) Batching I/O for synchronous swap devices causes performance regressions and filesystem-based swap suffers from double-indirection overhead. This series resolves both issues by reintroducing per-folio writes for synchronous swap and allowing filesystems to directly export their own swap_ops. - "mm/khugepaged: several cleanups" (Nico Pache) khugepaged accumulated redundant state-checking patterns and outdated comments following mTHP integration. Introduce dedicated helpers for PTE validation and event counting while refreshing the internal documentation. - "maple_tree: lock checking and clean ups" (Liam Howlett) Syzbot reports incorrectly blame memory management exit paths for locking bugs, maple tree erase operations risk allocation failures without gfp flags and internal documentation lacks clarity. Improve lock error detection, update docs, fix race and allocation edge cases and optimize erase allocations using a fallback to GFP_KERNEL | GFP_NOFAIL. * tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (172 commits) selftests/proc: make proc-maps-race work with READ_IMPLIES_EXEC memcg: move LRU size accounting on reparenting instead of copying it mm/vmscan: fix comment logic in balance_pgdat maple_tree: add helper mas_make_walkable() maple_tree: avoid extra gap calculation maple_tree: fix argument name in header maple_tree: change two GFP flags in tests maple_tree: document erase and allocations better maple_tree: avoid mas_erase() and mtree_erase() failures maple_tree: document that erase may use GFP_KERNEL for allocations maple_tree: catch race in mas_alloc_cyclic() maple_tree: add bulk parent set helper maple_tree: micro optimisation of mas_wr_store_type() maple_tree: optimise mas_wr_node_store() when not in rcu mode maple_tree: use prefetched value in mas_wr_store_type() maple_tree: clarify comments on mas_nomem() maple_tree: drop MAPLE_ALLOC_SLOTS maple_tree: drop dead code from mas_extend_spanning_null() maple_tree: documentation fix maple_tree: add write lock checking with lockdep sequence numbers ...