summaryrefslogtreecommitdiff
path: root/include/drm
AgeCommit message (Collapse)Author
2025-03-30Merge tag 'rust-6.15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux Pull Rust updates from Miguel Ojeda: "Toolchain and infrastructure: - Extract the 'pin-init' API from the 'kernel' crate and make it into a standalone crate. In order to do this, the contents are rearranged so that they can easily be kept in sync with the version maintained out-of-tree that other projects have started to use too (or plan to, like QEMU). This will reduce the maintenance burden for Benno, who will now have his own sub-tree, and will simplify future expected changes like the move to use 'syn' to simplify the implementation. - Add '#[test]'-like support based on KUnit. We already had doctests support based on KUnit, which takes the examples in our Rust documentation and runs them under KUnit. Now, we are adding the beginning of the support for "normal" tests, similar to those the '#[test]' tests in userspace Rust. For instance: #[kunit_tests(my_suite)] mod tests { #[test] fn my_test() { assert_eq!(1 + 1, 2); } } Unlike with doctests, the 'assert*!'s do not map to the KUnit assertion APIs yet. - Check Rust signatures at compile time for functions called from C by name. In particular, introduce a new '#[export]' macro that can be placed in the Rust function definition. It will ensure that the function declaration on the C side matches the signature on the Rust function: #[export] pub unsafe extern "C" fn my_function(a: u8, b: i32) -> usize { // ... } The macro essentially forces the compiler to compare the types of the actual Rust function and the 'bindgen'-processed C signature. These cases are rare so far. In the future, we may consider introducing another tool, 'cbindgen', to generate C headers automatically. Even then, having these functions explicitly marked may be a good idea anyway. - Enable the 'raw_ref_op' Rust feature: it is already stable, and allows us to use the new '&raw' syntax, avoiding a couple macros. After everyone has migrated, we will disallow the macros. - Pass the correct target to 'bindgen' on Usermode Linux. - Fix 'rusttest' build in macOS. 'kernel' crate: - New 'hrtimer' module: add support for setting up intrusive timers without allocating when starting the timer. Add support for 'Pin<Box<_>>', 'Arc<_>', 'Pin<&_>' and 'Pin<&mut _>' as pointer types for use with timer callbacks. Add support for setting clock source and timer mode. - New 'dma' module: add a simple DMA coherent allocator abstraction and a test sample driver. - 'list' module: make the linked list 'Cursor' point between elements, rather than at an element, which is more convenient to us and allows for cursors to empty lists; and document it with examples of how to perform common operations with the provided methods. - 'str' module: implement a few traits for 'BStr' as well as the 'strip_prefix()' method. - 'sync' module: add 'Arc::as_ptr'. - 'alloc' module: add 'Box::into_pin'. - 'error' module: extend the 'Result' documentation, including a few examples on different ways of handling errors, a warning about using methods that may panic, and links to external documentation. 'macros' crate: - 'module' macro: add the 'authors' key to support multiple authors. The original key will be kept until everyone has migrated. Documentation: - Add error handling sections. MAINTAINERS: - Add Danilo Krummrich as reviewer of the Rust "subsystem". - Add 'RUST [PIN-INIT]' entry with Benno Lossin as maintainer. It has its own sub-tree. - Add sub-tree for 'RUST [ALLOC]'. - Add 'DMA MAPPING HELPERS DEVICE DRIVER API [RUST]' entry with Abdiel Janulgue as primary maintainer. It will go through the sub-tree of the 'RUST [ALLOC]' entry. - Add 'HIGH-RESOLUTION TIMERS [RUST]' entry with Andreas Hindborg as maintainer. It has its own sub-tree. And a few other cleanups and improvements" * tag 'rust-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (71 commits) rust: dma: add `Send` implementation for `CoherentAllocation` rust: macros: fix `make rusttest` build on macOS rust: block: refactor to use `&raw mut` rust: enable `raw_ref_op` feature rust: uaccess: name the correct function rust: rbtree: fix comments referring to Box instead of KBox rust: hrtimer: add maintainer entry rust: hrtimer: add clocksource selection through `ClockId` rust: hrtimer: add `HrTimerMode` rust: hrtimer: implement `HrTimerPointer` for `Pin<Box<T>>` rust: alloc: add `Box::into_pin` rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&mut T>` rust: hrtimer: implement `UnsafeHrTimerPointer` for `Pin<&T>` rust: hrtimer: add `hrtimer::ScopedHrTimerPointer` rust: hrtimer: add `UnsafeHrTimerPointer` rust: hrtimer: allow timer restart from timer handler rust: str: implement `strip_prefix` for `BStr` rust: str: implement `AsRef<BStr>` for `[u8]` and `BStr` rust: str: implement `Index` for `BStr` rust: str: implement `PartialEq` for `BStr` ...
2025-03-28Merge tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "Outside of drm there are some rust patches from Danilo who maintains that area in here, and some pieces for drm header check tests. The major things in here are a new driver supporting the touchbar displays on M1/M2, the nova-core stub driver which is just the vehicle for adding rust abstractions and start developing a real driver inside of. xe adds support for SVM with a non-driver specific SVM core abstraction that will hopefully be useful for other drivers, along with support for shrinking for TTM devices. I'm sure xe and AMD support new devices, but the pipeline depth on these things is hard to know what they end up being in the marketplace! uapi: - add mediatek tiled fourcc - add support for notifying userspace on device wedged new driver: - appletbdrm: support for Apple Touchbar displays on m1/m2 - nova-core: skeleton rust driver to develop nova inside off firmware: - add some rust firmware pieces rust: - add 'LocalModule' type alias component: - add helper to query bound status fbdev: - fbtft: remove access to page->index media: - cec: tda998x: import driver from drm dma-buf: - add fast path for single fence merging tests: - fix lockdep warnings atomic: - allow full modeset on connector changes - clarify semantics of allow_modeset and drm_atomic_helper_check - async-flip: support on arbitary planes - writeback: fix UAF - Document atomic-state history format-helper: - support ARGB8888 to ARGB4444 conversions buddy: - fix multi-root cleanup ci: - update IGT dp: - support extended wake timeout - mst: fix RAD to string conversion - increase DPCD eDP control CAP size to 5 bytes - add DPCD eDP v1.5 definition - add helpers for LTTPR transparent mode panic: - encode QR code according to Fido 2.2 scheduler: - add parameter struct for init - improve job peek/pop operations - optimise drm_sched_job struct layout ttm: - refactor pool allocation - add helpers for TTM shrinker panel-orientation: - add a bunch of new quirks panel: - convert panels to multi-style functions - edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3, LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006, Lenovo T14s Gen6 Snapdragon - himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay kd110n11-51ie, Starry 2082109qfh040022-50e - visionox-r66451: use multi-style MIPI-DSI functions - raydium-rm67200: Add driver for Raydium RM67200 - simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17 - sony-td4353-jdi: Use MIPI-DSI multi-func interface - summit: Add driver for Apple Summit display panel - visionox-rm692e5: Add driver for Visionox RM692E5 bridge: - pass full atomic state to various callbacks - adv7511: Report correct capabilities - it6505: Fix HDCP V compare - snd65dsi86: fix device IDs - nwl-dsi: set bridge type - ti-sn65si83: add error recovery and set bridge type - synopsys: add HDMI audio support xe: - support device-wedged event - add mmap support for PCI memory barrier - perf pmu integration and expose per-engien activity - add EU stall sampling support - GPU SVM and Xe SVM implementation - use TTM shrinker - add survivability mode to allow the driver to do firmware updates in critical failure states - PXP HWDRM support for MTL and LNL - expose package/vram temps over hwmon - enable DP tunneling - drop mmio_ext abstraction - Reject BO evcition if BO is bound to current VM - Xe suballocator improvements - re-use display vmas when possible - add GuC Buffer Cache abstraction - PCI ID update for Panther Lake and Battlemage - Enable SRIOV for Panther Lake - Refactor VRAM manager location i915: - enable extends wake timeout - support device-wedged event - Enable DP 128b/132b SST DSC - FBC dirty rectangle support for display version 30+ - convert i915/xe to drm client setup - Compute HDMI PLLS for rates not in fixed tables - Allow DSB usage when PSR is enabled on LNL+ - Enable panel replay without full modeset - Enable async flips with compressed buffers on ICL+ - support luminance based brightness via DPCD for eDP - enable VRR enable/disable without full modeset - allow GuC SLPC default strategies on MTL+ for performance - lots of display refactoring in move to struct intel_display amdgpu: - add device wedged event - support async page flips on overlay planes - enable broadcast RGB drm property - add info ioctl for virt mode - OEM i2c support for RGB lights - GC 11.5.2 + 11.5.3 support - SDMA 6.1.3 support - NBIO 7.9.1 + 7.11.2 support - MMHUB 1.8.1 + 3.3.2 support - DCN 3.6.0 support - Add dynamic workload profile switching for GC 10-12 - support larger VBIOS sizes - Mark gttsize parameters as deprecated - Initial JPEG queue resset support amdkfd: - add KFD per process flags for setting precision - sync pasid values between KGD and KFD - improve GTT/VRAM handling for APUs - fix user queue validation on GC7/8 - SDMA queue reset support raedeon: - rs400 hyperz fix i2c: - td998x: drop platform_data, split driver into media and bridge ast: - transmitter chip detection refactoring - vbios display mode refactoring - astdp: fix connection status and filter unsupported modes - cursor handling refactoring imagination: - check job dependencies with sched helper ivpu: - improve command queue handling - use workqueue for IRQ handling - add support HW fault injection - locking fixes mgag200: - add support for G200eH5 msm: - dpu: add concurrent writeback support for DPU 10.x+ - use LTTPR helpers - GPU: - Fix obscure GMU suspend failure - Expose syncobj timeline support - Extend GPU devcoredump with pagetable info - a623 support - Fix a6xx gen1/gen2 indexed-register blocks in gpu snapshot / devcoredump - Display: - Add cpu-cfg interconnect paths on SM8560 and SM8650 - Introduce KMS OMMU fault handler, causing devcoredump snapshot - Fixed error pointer dereference in msm_kms_init_aspace() - DPU: - Fix mode_changing handling - Add writeback support on SM6150 (QCS615) - Fix DSC programming in 1:1:1 topology - Reworked hardware resource allocation, moving it to the CRTC code - Enabled support for Concurrent WriteBack (CWB) on SM8650 - Enabled CDM blocks on all relevant platforms - Reworked debugfs interface for BW/clocks debugging - Clear perf params before calculating bw - Support YUV formats on writeback - Fixed double inclusion - Fixed writeback in YUV formats when using cloned output, Dropped wb2_formats_rgb - Corrected dpu_crtc_check_mode_changed and struct dpu_encoder_virt kerneldocs - Fixed uninitialized variable in dpu_crtc_kickoff_clone_mode() - DSI: - DSC-related fixes - Rework clock programming - DSI PHY: - Fix 7nm (and lower) PHY programming - Add proper DT schema definitions for DSI PHY clocks - HDMI: - Rework the driver, enabling the use of the HDMI Connector framework - Bindings: - Added eDP PHY on SA8775P nouveau: - move drm_slave_encoder interface into driver - nvkm: refactor GSP RPC - use LTTPR helpers mediatek: - HDMI fixup and refinement - add MT8188 dsc compatible - MT8365 SoC support panthor: - Expose sizes of intenral BOs via fdinfo - Fix race between reset and suspend - Improve locking qaic: - Add support for AIC200 renesas: - Fix limits in DT bindings rockchip: - support rk3562-mali - rk3576: Add HDMI support - vop2: Add new display modes on RK3588 HDMI0 up to 4K - Don't change HDMI reference clock rate - Fix DT bindings - analogix_dp: add eDP support - fix shutodnw solomon: - Set SPI device table to silence warnings - Fix pixel and scanline encoding v3d: - handle clock vc4: - Use drm_exec - Use dma-resv for wait-BO ioctl - Remove seqno infrastructure virtgpu: - Support partial mappings of GEM objects - Reserve VGA resources during initialization - Fix UAF in virtgpu_dma_buf_free_obj() - Add panic support vkms: - Switch to a managed modesetting pipeline - Add support for ARGB8888 - fix UAf xlnx: - Set correct DMA segment size - use mutex guards - Fix error handling - Fix docs" * tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel: (1762 commits) drm/amd/pm: Update feature list for smu_v13_0_6 drm/amdgpu: Add parameter documentation for amdgpu_sync_fence drm/amdgpu/discovery: optionally use fw based ip discovery drm/amdgpu/discovery: use specific ip_discovery.bin for legacy asics drm/amdgpu/discovery: check ip_discovery fw file available drm/amd/pm: Remove unnecessay UQ10 to UINT conversion drm/amd/pm: Remove unnecessay UQ10 to UINT conversion drm/amdgpu/sdma_v4_4_2: update VM flush implementation for SDMA drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush drm/amd/amdgpu: Increase max rings to enable SDMA page ring drm/amdgpu: Decode deferred error type in gfx aca bank parser drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.5 GPUs drm/amdgpu/mes: clean up SDMA HQD loop drm/amdgpu/mes: enable compute pipes across all MEC drm/amdgpu/mes: drop MES 10.x leftovers drm/amdgpu/mes: optimize compute loop handling drm/amdgpu/sdma: guilty tracking is per instance drm/amdgpu/sdma: fix engine reset handling drm/amdgpu: remove invalid usage of sched.ready drm/amdgpu: add cleaner shader trace point ...
2025-03-11Merge tag 'drm-intel-next-2025-03-10' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next drm/i915 feature pull #2 for v6.15: Features and functionality: - FBC dirty rectangle support for display version 30+ (Vinod) - Update plane scalers via DSB based commits (Ville) - Move runtime power status info to display power debugfs (Jani) Refactoring and cleanups: - Convert i915 and xe to DRM client setup (Thomas) - Refactor and clean up CDCLK/bw/dbuf readout/sanitation (Ville) - Conversions from drm_i915_private to struct intel_display (Jani, Suraj) - Refactor display reset for better separation between display and core (Jani) - Move panel fitter code together (Jani) - Add mst and hdcp sub-structs to display structs for clarity (Jani) - Header refactoring to clarify separation between display and i915 core (Jani) Fixes: - Fix DP MST max stream count to match number of pipes (Jani) - Fix encoder HW state readout of DP MST UHBR (Imre) - Fix ICL+ combo PHY cursor and coeff polarity programming (Ville) - Fix pipeDMC and ATS fault handling (Ville) - Display workarounds (Gustavo) - Remove duplicate forward declaration (Vinod) - Improve POWER_DOMAIN_*() macro type safety (Gustavo) - Move CDCLK post plane programming later (Ville) DRM core changes: - Add client-hotplug helper (Thomas) - Send pending hotplug events after client resume (Thomas) - Add fb_restore and fb_set_suspend fb helper hooks (Thomas) - Remove struct fb_probe fb helper hook (Thomas) - Add const qualifier to drm_atomic_helper_damage_merged() (Vinod) Xe driver changes: - Convert i915 and xe to DRM client setup (Thomas) - Refactor i915 compat headers (Jani) - Fix fbdev GGTT mapping handling (Maarten) - Figure out pxp instance from the gem object (Jani) Merges: - Backmerge drm-next to fix conflicts with drm-xe-next (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87o6y9gpub.fsf@intel.com
2025-03-11Merge tag 'drm-xe-next-2025-03-07' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next UAPI Changes: - Expose per-engine activity via perf pmu (Riana, Lucas, Umesh) - Add support for EU stall sampling (Harish, Ashutosh) - Allow userspace to provide low latency hint for submission (Tejas) - GPU SVM and Xe SVM implementation (Matthew Brost) Cross-subsystem Changes: - devres handling for component drivers (Lucas) - Backmege drm-next to allow cross dependent change with i915 - GPU SVM and Xe SVM implementation (Matthew Brost) Core Changes: Driver Changes: - Fixes to userptr and missing validations (Matthew Auld, Thomas Hellström, Matthew Brost) - devcoredump typos and error handling improvement (Shuicheng) - Allow oa_exponent value of 0 (Umesh) - Finish moving device probe to devm (Lucas) - Fix race between submission restart and scheduled being freed (Tejas) - Fix counter overflows in gt_stats (Francois) - Refactor and add missing workarounds and tunings for pre-Xe2 platforms (Aradhya, Tvrtko) - Fix PXP locks interaction with exec queues being killed (Daniele) - Eliminate TIMESTAMP_OVERRIDE from xe (Matt Roper) - Change xe_gen_wa_oob to allow building on MacOS (Daniel Gomez) - New workarounds for Panther Lake (Tejas) - Fix VF resume errors (Satyanarayana) - Fix workaround infra skipping some workarounds dependent on engine initialization (Tvrtko) - Improve per-IP descriptors (Gustavo) - Add more error injections to probe sequence (Francois) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ilc5jvtyaoyi6woyhght5a6sw5jcluiojjueorcyxbynrcpcjp@mw2mi6rd6a7l
2025-03-09panic_qr: use new #[export] macroAlice Ryhl
This validates at compile time that the signatures match what is in the header file. It highlights one annoyance with the compile-time check, which is that it can only be used with functions marked unsafe. If the function is not unsafe, then this error is emitted: error[E0308]: `if` and `else` have incompatible types --> <linux>/drivers/gpu/drm/drm_panic_qr.rs:987:19 | 986 | #[export] | --------- expected because of this 987 | pub extern "C" fn drm_panic_qr_max_data_size(version: u8, url_len: usize) -> usize { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected unsafe fn, found safe fn | = note: expected fn item `unsafe extern "C" fn(_, _) -> _ {kernel::bindings::drm_panic_qr_max_data_size}` found fn item `extern "C" fn(_, _) -> _ {drm_panic_qr_max_data_size}` The signature declarations are moved to a header file so it can be included in the Rust bindings helper, and the extern keyword is removed as it is unnecessary. Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250303-export-macro-v3-5-41fbad85a27f@google.com [ Fixed `rustfmt`. Moved on top the unsafe requirement comment to follow the usual style, and slightly reworded it for clarity. Formatted bindings helper comment. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-03-07Merge tag 'drm-misc-next-2025-03-06' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.15: Cross-subsystem Changes: base: - component: Provide helper to query bound status fbdev: - fbtft: Remove access to page->index Core Changes: - Fix usage of logging macros in several places gem: - Add test function for imported dma-bufs and use it in core and helpers - Avoid struct drm_gem_object.import_attach tests: - Fix lockdep warnings ttm: - Add helpers for TTM shrinker Driver Changes: adp: - Add support for Apple Touch Bar displays on M1/M2 amdxdna: - Fix interrupt handling appletbdrm: - Add support for Apple Touch Bar displays on x86 bridge: - synopsys: Add HDMI audio support - ti-sn65dsi83: Support negative DE polarity ipu-v3: - Remove unused code nouveau: - Avoid multiple -Wflex-array-member-not-at-end warnings panthor: - Fix CS_STATUS_ defines - Improve locking rockchip: - analogix_dp: Add eDP support - lvds: Improve logging - vop2: Improve HDMI mode handling; Add support for RK3576 - Fix shutdown - Support rk3562-mali xe: - Use TTM shrinker Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20250306130700.GA485504@linux.fritz.box
2025-03-06drm/gpuvm: Add DRM_GPUVA_OP_DRIVERMatthew Brost
Add DRM_GPUVA_OP_DRIVER which allows driver to define their own gpuvm ops. Useful for driver created ops which can be passed into the bind software pipeline. v3: - s/DRM_GPUVA_OP_USER/DRM_GPUVA_OP_DRIVER (Thomas) - Better commit message (Thomas) Cc: Danilo Krummrich <dakr@redhat.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-14-matthew.brost@intel.com
2025-03-06drm/gpusvm: Add support for GPU Shared Virtual MemoryMatthew Brost
This patch introduces support for GPU Shared Virtual Memory (SVM) in the Direct Rendering Manager (DRM) subsystem. SVM allows for seamless sharing of memory between the CPU and GPU, enhancing performance and flexibility in GPU computing tasks. The patch adds the necessary infrastructure for SVM, including data structures and functions for managing SVM ranges and notifiers. It also provides mechanisms for allocating, deallocating, and migrating memory regions between system RAM and GPU VRAM. This is largely inspired by GPUVM. v2: - Take order into account in check pages - Clear range->pages in get pages error - Drop setting dirty or accessed bit in get pages (Vetter) - Remove mmap assert for cpu faults - Drop mmap write lock abuse (Vetter, Christian) - Decouple zdd from range (Vetter, Oak) - Add drm_gpusvm_range_evict, make it work with coherent pages - Export drm_gpusvm_evict_to_sram, only use in BO evict path (Vetter) - mmget/put in drm_gpusvm_evict_to_sram - Drop range->vram_alloation variable - Don't return in drm_gpusvm_evict_to_sram until all pages detached - Don't warn on mixing sram and device pages - Update kernel doc - Add coherent page support to get pages - Use DMA_FROM_DEVICE rather than DMA_BIDIRECTIONAL - Add struct drm_gpusvm_vram and ops (Thomas) - Update the range's seqno if the range is valid (Thomas) - Remove the is_unmapped check before hmm_range_fault (Thomas) - Use drm_pagemap (Thomas) - Drop kfree_mapping (Thomas) - dma mapp pages under notifier lock (Thomas) - Remove ctx.prefault - Remove ctx.mmap_locked - Add ctx.check_pages - s/vram/devmem (Thomas) v3: - Fix memory leak drm_gpusvm_range_get_pages - Only migrate pages with same zdd on CPU fault - Loop over al VMAs in drm_gpusvm_range_evict - Make GPUSVM a drm level module - GPL or MIT license - Update main kernel doc (Thomas) - Prefer foo() vs foo for functions in kernel doc (Thomas) - Prefer functions over macros (Thomas) - Use unsigned long vs u64 for addresses (Thomas) - Use standard interval_tree (Thomas) - s/drm_gpusvm_migration_put_page/drm_gpusvm_migration_unlock_put_page (Thomas) - Drop err_out label in drm_gpusvm_range_find_or_insert (Thomas) - Fix kernel doc in drm_gpusvm_range_free_pages (Thomas) - Newlines between functions defs in header file (Thomas) - Drop shall language in driver vfunc kernel doc (Thomas) - Move some static inlines from head to C file (Thomas) - Don't allocate pages under page lock in drm_gpusvm_migrate_populate_ram_pfn (Thomas) - Change check_pages to a threshold v4: - Fix NULL ptr deref in drm_gpusvm_migrate_populate_ram_pfn (Thomas, Himal) - Fix check pages threshold - Check for range being unmapped under notifier lock in get pages (Testing) - Fix characters per line - Drop WRITE_ONCE for zdd->devmem_allocation assignment (Thomas) - Use completion for devmem_allocation->detached (Thomas) - Make GPU SVM depend on ZONE_DEVICE (CI) - Use hmm_range_fault for eviction (Thomas) - Drop zdd worker (Thomas) v5: - Select Kconfig deps (CI) - Set device to NULL in __drm_gpusvm_migrate_to_ram (Matt Auld, G.G.) - Drop Thomas's SoB (Thomas) - Add drm_gpusvm_range_start/end/size helpers (Thomas) - Add drm_gpusvm_notifier_start/end/size helpers (Thomas) - Absorb drm_pagemap name changes (Thomas) - Fix driver lockdep assert (Thomas) - Move driver lockdep assert to static function (Thomas) - Assert mmap lock held in drm_gpusvm_migrate_to_devmem (Thomas) - Do not retry forever on eviction (Thomas) v6: - Fix drm_gpusvm_get_devmem_page alignment (Checkpatch) - Modify Kconfig (CI) - Compile out lockdep asserts (CI) v7: - Add kernel doc for flags fields (CI, Auld) Cc: Simona Vetter <simona.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Christian König <christian.koenig@amd.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: <dri-devel@lists.freedesktop.org> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-7-matthew.brost@intel.com
2025-03-06drm/pagemap: Add DRM pagemapThomas Hellström
Introduce drm_pagemap ops to map and unmap dma to VRAM resources. In the local memory case it's a matter of merely providing an offset into the device's physical address. For future p2p the map and unmap functions may encode as needed. Similar to how dma-buf works, let the memory provider (drm_pagemap) provide the mapping functionality. v3: - Move to drm level include v4: - Fix kernel doc (G.G.) v5: - s/map_dma/device_map (Thomas) - s/unmap_dma/device_unmap (Thomas) v7: - Fix kernel doc (CI, Auld) - Drop P2P define (Thomas) Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-5-matthew.brost@intel.com
2025-03-06drm/gem-shmem: Test for imported buffers with drm_gem_is_imported()Thomas Zimmermann
Instead of testing import_attach for imported GEM buffers, invoke drm_gem_is_imported() to do the test. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Anusha Srivatsa <asrivats@redhat.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250226172457.217725-5-tzimmermann@suse.de
2025-03-06drm/gem: Test for imported GEM buffers with helperThomas Zimmermann
Add drm_gem_is_imported() that tests if a GEM object's buffer has been imported. Update the GEM code accordingly. GEM code usually tests for imports if import_attach has been set in struct drm_gem_object. But attaching a dma-buf on import requires a DMA-capable importer device, which is not the case for many serial busses like USB or I2C. The new helper tests if a GEM object's dma-buf has been created from the GEM object. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Anusha Srivatsa <asrivats@redhat.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250226172457.217725-2-tzimmermann@suse.de
2025-03-05drm/fb-helper: Remove struct drm_fb_helper.fb_probeThomas Zimmermann
The callback fb_probe in struct drm_fb_helper is unused. Remove it. New drivers should set struct drm_driver.fbdev_probe instead and call drm_client_setup() to instantiate in-kernel DRM clients. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-13-tzimmermann@suse.de Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2025-03-05drm/i915/display: fbdev: Move custom suspend code to new callbackThomas Zimmermann
If the fbdev buffer is backed by stolen memory, it has to be cleared upon resume from hibernation. Move the code into the new callback fb_set_suspend, so that it can run from DRM's generic fbdev client. No functional change. Other drivers are not affected. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-7-tzimmermann@suse.de Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2025-03-05drm/i915/display: fbdev: Move custom restore code to new callbackThomas Zimmermann
i915's fbdev contains code for restoring the client's framebuffer. It is specific to i195 and cannot be ported to the common fbdev client. Introduce the callback struct drm_fb_helper.fb_restore and implement it for i915. The fbdev helpers invoke the callback after restoring the fbdev client. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-6-tzimmermann@suse.de Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2025-03-05drm/client: Send pending hotplug events after resumeThomas Zimmermann
If a hotplug event arrives while the client has been suspended, DRM's client code will deliver the event after resuming. The functionality has been taken form i915, where it can be removed by a later commit. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241212170913.185939-4-tzimmermann@suse.de Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2025-03-05drm/ttm: Add helpers for shrinkingThomas Hellström
Add a number of helpers for shrinking that access core TTM and core MM functionality in a way that make them unsuitable for driver open-coding. v11: - New patch (split off from previous) and additional helpers. v13: - Adapt to ttm_backup interface change. - Take resource off LRU when backed up. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/intel-xe/20250305092220.123405-6-thomas.hellstrom@linux.intel.com
2025-03-05drm/ttm: Add a macro to perform LRU iterationThomas Hellström
Following the design direction communicated here: https://lore.kernel.org/linux-mm/b7491378-defd-4f1c-31e2-29e4c77e2d67@amd.com/T/#ma918844aa8a6efe8768fdcda0c6590d5c93850c9 Export a LRU walker for driver shrinker use. The walker initially supports only trylocking, since that's the method used by shrinkes. The walker makes use of scoped_guard() to allow exiting from the LRU walk loop without performing any explicit unlocking or cleanup. v8: - Split out from another patch. - Use a struct for bool arguments to increase readability (Matt Brost). - Unmap user-space cpu-mappings before shrinking pages. - Explain non-fatal error codes (Matt Brost) v10: - Instead of using the existing helper, Wrap the interface inside out and provide a loop to de-midlayer things the LRU iteration (Christian König). - Removing the R-B by Matt Brost since the patch was significantly changed. v11: - Split the patch up to include just the LRU walk helper. v12: - Indent after scoped_guard() (Matt Brost) v15: - Adapt to new definition of scoped_guard() Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/intel-xe/20250305092220.123405-5-thomas.hellstrom@linux.intel.com
2025-03-05drm/ttm/pool, drm/ttm/tt: Provide a helper to shrink pagesThomas Hellström
Provide a helper to shrink ttm_tt page-vectors on a per-page basis. A ttm_backup backend could then in theory get away with allocating a single temporary page for each struct ttm_tt. This is accomplished by splitting larger pages before trying to back them up. In the future we could allow ttm_backup to handle backing up large pages as well, but currently there's no benefit in doing that, since the shmem backup backend would have to split those anyway to avoid allocating too much temporary memory, and if the backend instead inserts pages into the swap-cache, those are split on reclaim by the core. Due to potential backup- and recover errors, allow partially swapped out struct ttm_tt's, although mark them as swapped out stopping them from being swapped out a second time. More details in the ttm_pool.c DOC section. v2: - A couple of cleanups and error fixes in ttm_pool_back_up_tt. - s/back_up/backup/ - Add a writeback parameter to the exported interface. v8: - Use a struct for flags for readability (Matt Brost) - Address misc other review comments (Matt Brost) v9: - Update the kerneldoc for the ttm_tt::backup field. v10: - Rebase. v13: - Rebase on ttm_backup interface change. Update kerneldoc. - Rebase and adjust ttm_tt_is_swapped(). v15: - Rebase on ttm_backup return value change. - Rebase on previous restructuring of ttm_pool_alloc() - Rework the ttm_pool backup interface (Christian König) - Remove cond_resched() (Christian König) - Get rid of the need to allocate an intermediate page array when restoring a multi-order page (Christian König) - Update documentation. Cc: Christian König <christian.koenig@amd.com> Cc: Somalapuram Amaranath <Amaranath.Somalapuram@amd.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: <dri-devel@lists.freedesktop.org> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Christian Koenig <christian.koenig@amd.com> Link: https://lore.kernel.org/intel-xe/20250305092220.123405-3-thomas.hellstrom@linux.intel.com
2025-03-05drm/ttm: Provide a shmem backup implementationThomas Hellström
Provide a standalone shmem backup implementation. Given the ttm_backup interface, this could later on be extended to providing other backup implementation than shmem, with one use-case being GPU swapout to a user-provided fd. v5: - Fix a UAF. (kernel test robot, Dan Carptenter) v6: - Rename ttm_backup_shmem_copy_page() function argument (Matthew Brost) - Add some missing documentation v8: - Use folio_file_page to get to the page we want to writeback instead of using the first page of the folio. v13: - Remove the base class abstraction (Christian König) - Include ttm_backup_bytes_avail(). v14: - Fix kerneldoc for ttm_backup_bytes_avail() (0-day) - Work around casting of __randomize_layout struct pointer (0-day) v15: - Return negative error code from ttm_backup_backup_page() (Christian König) - Doc fixes. (Christian König). Cc: Christian König <christian.koenig@amd.com> Cc: Somalapuram Amaranath <Amaranath.Somalapuram@amd.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: <dri-devel@lists.freedesktop.org> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/intel-xe/20250305092220.123405-2-thomas.hellstrom@linux.intel.com
2025-03-04drm/print: require struct drm_device for drm_err() and friendsJani Nikula
The expectation is that the struct drm_device based logging helpers get passed an actual struct drm_device pointer rather than some random struct pointer where you can dereference the ->dev member. Add a static inline helper to convert struct drm_device to struct device, with the main benefit being the type checking of the macro argument. As a side effect, this also reduces macro argument double references. Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch> Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/dfe6e774883e6ef93cfaa2b6fe92b804061ab9d9.1737644530.git.jani.nikula@intel.com
2025-03-03drm/format-helper: Add conversion from XRGB8888 to BGR888Kerem Karabay
Add XRGB8888 emulation helper for devices that only support BGR888. Signed-off-by: Kerem Karabay <kekrby@gmail.com> Signed-off-by: Aditya Garg <gargaditya08@live.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/9A67EA95-9BC7-4D56-8F87-05EAC1C166AD@live.com
2025-03-03drm/tests: Drop drm_kunit_helper_acquire_ctx_alloc()Maxime Ripard
lockdep complains when a lock is released in a separate thread the lock is taken in, and it turns out that kunit does run its actions in a separate thread than the test ran in. This means that drm_kunit_helper_acquire_ctx_alloc() just cannot work as it's supposed to, so let's just get rid of it. Suggested-by: Simona Vetter <simona.vetter@ffwll.ch> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250220132537.2834168-1-mripard@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-03-03drm/damage-helper: add const qualifier in drm_atomic_helper_damage_merged()Vinod Govindapillai
Add a const qualifier for the "state" parameter as well as we could use this helper to get the combined damage in cases of const drm_plane_state as well. Needed mainly for xe driver big joiner cases where we need to track the damage from immutable plane state. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250228093802.27091-3-vinod.govindapillai@intel.com
2025-02-28Merge tag 'drm-misc-next-2025-02-27' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.15: Cross-subsystem Changes: bus: - mhi: Avoid access to uninitialized field Core Changes: - Fix docmentation dp: - Add helpers for LTTPR transparent mode sched: - Improve job peek/pop operations - Optimize layout of struct drm_sched_job Driver Changes: arc: - Convert to devm_platform_ioremap_resource() aspeed: - Convert to devm_platform_ioremap_resource() bridge: - ti-sn65dsi86: Support CONFIG_PWM tristate i915: - dp: Use helpers for LTTPR transparent mode mediatek: - Convert to devm_platform_ioremap_resource() msm: - dp: Use helpers for LTTPR transparent mode nouveau: - dp: Use helpers for LTTPR transparent mode panel: - raydium-rm67200: Add driver for Raydium RM67200 - simple: Add support for BOE AV123Z7M-N17, BOE AV123Z7M-N17 - sony-td4353-jdi: Use MIPI-DSI multi-func interface - summit: Add driver for Apple Summit display panel - visionox-rm692e5: Add driver for Visionox RM692E5 repaper: - Fix integer overflows stm: - Convert to devm_platform_ioremap_resource() vc4: - Convert to devm_platform_ioremap_resource() Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20250227094041.GA114623@linux.fritz.box
2025-02-27Merge tag 'drm-xe-next-2025-02-24' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next UAPI Changes: - Add mmap support for PCI memory barrier (Tejas, Matthew Auld) - Enable integration with perf pmu, exposing event counters: for now, just GT C6 residency (Vinay, Lucas) - Add "survivability mode" to allow putting the driver in a state capable of firmware upgrade on critical failures (Riana, Rodrigo) - Add PXP HWDRM support and enable for compatible platforms: Meteor Lake and Lunar Lake (Daniele, John Harrison) - Expose package and vram temperature over hwmon subsystem (Raag, Badal, Rodrigo) Cross-subsystem Changes: - Backmege drm-next to synchronize with i915 display and other internal APIs Display Changes (including i915): - Device probe re-order to help with flicker-free boot (Maarten) - Align watermark, hpd and dsm with i915 (Rodrigo) - Better abstraction for d3cold (Rodrigo) Driver Changes: - Make sure changes to ccs_mode is with helper for gt sync reset (Maciej) - Drop mmio_ext abstraction since it didn't prove useful in its current form (Matt Roper) - Reject BO eviction if BO is bound to current VM (Oak, Thomas Hellström) - Add GuC Power Conservation debugfs (Rodrigo) - L3 cache topology updates for Xe3 (Francois, Matt Atwood) - Better logging about missing GuC logs (John Harrison) - Better logging for hwconfig-related data availability (John Harrison) - Tracepoint updates for xe_bo_create, xe_vm and xe_vma (Oak) - Add missing SPDX licenses (Francois) - Xe suballocator imporovements (Michal Wajdeczko) - Improve logging for native vs SR-IOV driver mode (Satyanarayana) - Make sure VF bootstrap is not attempted in execlist mode (Maarten) - Add GuC Buffer Cache abstraction for some CTB H2G actions and use during VF provisioning (Michal Wajdeczko) - Better synchronization in gtidle for new users (Vinay) - New workarounds for Panther Lake (Nirmoy, Vinay) - PCI ID updates for Panther Lake (Matt Atwood) - Enable SR-IOV for Panther Lake (Michal Wajdeczko) - Update MAINTAINERS to stop directing xe changes to drm-misc (Lucas) - New PCI IDs for Battle Mage (Shekhar) - Better pagefault logging (Francois) - SR-IOV fixes and refactors for past and new platforms (Michal Wajdeczko) - Platform descriptor refactors and updates (Sai Teja) - Add gt stats debugfs (Francois) - Add guc_log debugfs to dump to dmesg (Lucas) - Abstract per-platform LMTT availability (Piotr Piórkowski) - Refactor VRAM manager location (Piotr Piórkowski) - Add missing xe_pm_runtime_put when forcing wedged mode (Shuicheng) - Fix possible lockup when forcing wedged mode (Xin Wang) - Probe refactors to use cleanup actions with better error handling (Lucas) - XE_IOCTL_DBG clarification for userspace (Maarten) - Better xe_mmio initialization and abstraction (Ilia) - Drop unnecessary GT lookup (Matt Roper) - Skip client engine usage from fdinfo for VFs (Marcin Bernatowicz) - Allow to test xe_sync_entry_parse with error injection (Priyanka) - OA fix for polled read (Umesh) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/m3gbuh32wgiep43i4zxbyhxqbenvtgvtao5sczivlasj7tikwv@dmlba4bfg2ny
2025-02-27Merge tag 'drm-intel-next-2025-02-24' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next drm/i915 feature pull for v6.15: Features and functionality: - Enable DP 128b/132b SST DSC (Jani, Imre) - Allow DSB to perform commits when VRR is enabled (Ville) - Compute HDMI PLLs for SNPS/C10 PHYs for rates not in fixed tables (Ankit) - Allow DSB usage when PSR is enabled on LNL+ (Jouni) - Enable Panel Replay mode change without full modeset (Jouni) - Enable async flips with compressed buffers on ICL+ (Ville) - Support luminance based brightness control via DPCD for eDP (Suraj) - Enable VRR enable/disable without full modeset (Mitul, Ankit) - Add debugfs facility for force testing HDCP 1.4 (Suraj) - Add scaler tracepoints, improve plane tracepoints (Ville) - Improve DMC wakelock debugging facilities (Gustavo) - Allow GuC SLPC default strategies on MTL+ for performance (Rodrigo) - Provide more information on display faults (Ville) Refactoring and cleanups: - Continue conversions to struct intel_display (Ville, Jani, Suraj, Imre) - Joiner and Y plane reorganization (Ville) - Move HDCP debugfs to intel_hdcp.c (Jani) - Clean up and unify LSPCON interfaces (Jani) - Move code out of intel_display.c to reduce its size (Ville) - Clean up and simplify DDI port enabling/disabling (Imre) - Make LPT LP a dedicated PCH type, refactor (Jani) - Simplify DSC range BPG offset calculation (Ankit) - Scaler cleanups (Ville) - Remove unused code from GVT (David Alan Gilbert) - Improve plane debugging (Ville) - DSB and VRR refactoring (Ville) Fixes: - Check if vblank is sufficient for DSC prefill and scaler (Mitul) - Fix Mesa clear color alignment regression (Ville) - Add missing TC DP PHY lane stagger delay (Imre) - Fix DSB + VRR usage for PTL+ (Ville) - Improve robustness of display VT-d workarounds (Ville) - Fix platforms for dbuf tracker state service programming (Ravi) - Fix DMC wakelock support conditions (Gustavo) - Amend DMC wakelock register ranges (Gustavo) - Disable the Common Primary Timing Generator (CMTG) (Gustavo) - Enable C20 PHY SSC (Suraj) - Add workaround for DKL PHY DP mode write (Nemesa) - Fix build warnings on clamp() usage (Guenter Roeck, Ankit) - Fix error handling while adding a connector (Imre) - Avoid full modeset at probe on vblank delay mismatches (Ville) - Fix encoder HDMI check for HDCP line rekeying (Suraj) - Fix HDCP repeater authentication during topology change (Suraj) - Handle display PHY power state reset for power savings (Mika) - Fix typos all over the place (Nitin) - Update HDMI TMDS C20 parameters for various platforms (Dnyaneshwar) - Guarantee a minimum hblank time for 128b/132b and 8b/10b MST (Arun, Imre) - Do not hardcode LSPCON settle timeout (Giedrius Statkevičius) Xe driver changes: - Re-use display vmas when possible (Maarten) - Remove double pageflip (Maarten) - Enable DP tunneling (Imre) - Separate i915 and xe tracepoints (Ville) DRM core changes: - Increase DPCD eDP display control CAP size to 5 bytes (Suraj) - Add DPCD eDP version 1.5 definition (Suraj) - Add timeout parameter to drm_lspcon_set_mode() (Giedrius Statkevičius) Merges: - Backmerge drm-next (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87h64j7b7n.fsf@intel.com
2025-02-25drm/dp: Add helper to set LTTPRs in transparent modeAbel Vesa
According to the DisplayPort standard, LTTPRs have two operating modes: - non-transparent - it replies to DPCD LTTPR field specific AUX requests, while passes through all other AUX requests - transparent - it passes through all AUX requests. Switching between this two modes is done by the DPTX by issuing an AUX write to the DPCD PHY_REPEATER_MODE register. Add a generic helper that allows switching between these modes. Also add a generic wrapper for the helper that handles the explicit disabling of non-transparent mode and its disable->enable sequence mentioned in the DP Standard v2.0 section 3.6.6.1. Do this in order to move this handling out of the vendor specific driver implementation into the generic framework. Tested-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250203-drm-dp-msm-add-lttpr-transparent-mode-set-v5-1-c865d0e56d6e@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-02-25Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging to get fixes from v6.14-rc4. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2025-02-25drm/mipi-dsi: extend "multi" functions and use them in sony-td4353-jdiTejas Vipin
Removes mipi_dsi_dcs_set_tear_off and replaces it with a multi version as after replacing it in sony-td4353-jdi, it doesn't appear anywhere else. sony-td4353-jdi is converted to use multi style functions, including mipi_dsi_dcs_set_tear_off_multi. Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250220045721.145905-1-tejasvipin76@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250220045721.145905-1-tejasvipin76@gmail.com
2025-02-25Merge tag 'v6.14-rc4' into drm-nextDave Airlie
Backmerge Linux 6.14-rc4 at the request of tzimmermann so misc-next can base on rc4. Signed-off-by: Dave Airlie <airlied@redhat.com>
2025-02-24drm/sched: Group exported prototypes by object typeTvrtko Ursulin
Do a bit of house keeping in gpu_scheduler.h by grouping the API by type of object it operates on. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <phasta@kernel.org> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250221105038.79665-7-tvrtko.ursulin@igalia.com
2025-02-24drm/sched: Move internal prototypes to internal headerTvrtko Ursulin
Now that we have a header file for internal scheduler interfaces we can move some more prototypes into it. By doing that we eliminate the chance of drivers trying to use something which was not intended to be used. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <phasta@kernel.org> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250221105038.79665-6-tvrtko.ursulin@igalia.com
2025-02-24drm/sched: Move drm_sched_entity_is_ready to internal headerTvrtko Ursulin
Helper is for scheduler internal use so lets hide it from DRM drivers completely. At the same time we change the method of checking whethere there is anything in the queue from peeking to looking at the node count. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <phasta@kernel.org> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250221105038.79665-5-tvrtko.ursulin@igalia.com
2025-02-24drm/sched: Remove a hole from struct drm_sched_jobTvrtko Ursulin
We can re-order some struct members and take u32 credits outside of the pointer sandwich and also for the last_dependency member we can get away with an unsigned int since for dependency we use xa_limit_32b. Pahole report before: /* size: 160, cachelines: 3, members: 14 */ /* sum members: 156, holes: 1, sum holes: 4 */ /* last cacheline: 32 bytes */ And after: /* size: 152, cachelines: 3, members: 14 */ /* last cacheline: 24 bytes */ Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Cc: Christian König <christian.koenig@amd.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Philipp Stanner <phasta@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250221105038.79665-4-tvrtko.ursulin@igalia.com
2025-02-24Merge tag 'v6.14-rc4' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into HEAD Linux 6.14-rc4
2025-02-20drm/ast: cursor: Move format conversion to shared helperThomas Zimmermann
User-space cursor-image data is encoded in ARBG8888, while hardware supports ARGB4444. Implement the format conversion as part of the format-helper framework, so that other drivers can benefit. This allows to respect the damage area of the cursor update. In previous code, all cursor image data had to be converted on each update. Now, only the changed areas require an update. The hardware image is always updated completely, as it is required for the checksum update. The format-conversion helper still contains the old implementation's optimization of writing 2 output pixels at the same time. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-3-tzimmermann@suse.de
2025-02-19drm/bridge: Pass full state to atomic_post_disableMaxime Ripard
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_post_disable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-5-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-19drm/bridge: Pass full state to atomic_disableMaxime Ripard
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_disable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-4-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-19drm/bridge: Pass full state to atomic_enableMaxime Ripard
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_enable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-3-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-19drm/bridge: Pass full state to atomic_pre_enableMaxime Ripard
It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_pre_enable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-2-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-19drm/atomic: Document history of drm_atomic_stateMaxime Ripard
After some discussions on the mailing-list for an earlier revision of the series, it was suggested to document the evolution of drm_atomic_state and its use by drivers to explain some of the confusion one might still encounter when reading the framework code. Suggested-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://lore.kernel.org/dri-devel/Z4jtKHY4qN3RNZNG@phenom.ffwll.local/ Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-1-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-18Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging to get bugfixes from v6.14-rc2. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2025-02-17drm: Move for_each_if() to util_macros.h for wider useAndy Shevchenko
Other subsystem(s) may want to reuse the for_each_if() macro. Move it to util_macros.h to make it globally available. Suggested-by: Bartosz Golaszewski <brgl@bgdev.pl> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250213182527.3092371-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-14Merge tag 'drm-misc-next-2025-02-12' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.15: UAPI Changes: fourcc: - Add modifiers for MediaTek tiled formats Cross-subsystem Changes: bus: - mhi: Enable image transfer via BHIe in PBL dma-buf: - Add fast-path for single-fence merging Core Changes: atomic helper: - Allow full modeset on connector changes - Clarify semantics of allow_modeset - Clarify semantics of drm_atomic_helper_check() buddy allocator: - Fix multi-root cleanup ci: - Update IGT display: - dp: Support Extendeds Wake Timeout - dp_mst: Fix RAD-to-string conversion panic: - Encode QR code according to Fido 2.2 probe helper: - Cleanups scheduler: - Cleanups ttm: - Refactor pool-allocation code - Cleanups Driver Changes: amdxdma: - Fix error handling - Cleanups ast: - Refactor detection of transmitter chips - Refactor support of VBIOS display-mode handling - astdp: Fix connection status; Filter unsupported display modes bridge: - adv7511: Report correct capabilities - it6505: Fix HDCP V compare - sn65dsi86: Fix device IDs - Cleanups i915: - Enable Extendeds Wake Timeout imagination: - Check job dependencies with DRM-sched helper ivpu: - Improve command-queue handling - Use workqueue for IRQ handling - Add suport for HW fault injection - Locking fixes - Cleanups mgag200: - Add support for G200eH5 chips msm: - dpu: Add concurrent writeback support for DPU 10.x+ nouveau: - Move drm_slave_encoder interface into driver - nvkm: Refactor GSP RPC omapdrm: - Cleanups panel: - Convert several panels to multi-style functions to improve error handling - edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3, LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006, Lenovo T14s Gen6 Snapdragon - himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay kd110n11-51ie, Starry 2082109qfh040022-50e panthor: - Expose sizes of intenral BOs via fdinfo - Fix race between reset and suspend - Cleanups qaic: - Add support for AIC200 - Cleanups renesas: - Fix limits in DT bindings rockchip: - rk3576: Add HDMI support - vop2: Add new display modes on RK3588 HDMI0 up to 4K - Don't change HDMI reference clock rate - Fix DT bindings solomon: - Set SPI device table to silence warnings - Fix pixel and scanline encoding v3d: - Cleanups vc4: - Use drm_exec - Use dma-resv for wait-BO ioctl - Remove seqno infrastructure virtgpu: - Support partial mappings of GEM objects - Reserve VGA resources during initialization - Fix UAF in virtgpu_dma_buf_free_obj() - Add panic support vkms: - Switch to a managed modesetting pipeline - Add support for ARGB8888 xlnx: - Set correct DMA segment size - Fix error handling - Fix docs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20250212090625.GA24865@linux.fritz.box
2025-02-14drm/atomic: Let drivers decide which planes to async flipAndré Almeida
Currently, DRM atomic uAPI allows only primary planes to be flipped asynchronously. However, each driver might be able to perform async flips in other different plane types. To enable drivers to set their own restrictions on which type of plane they can or cannot flip, use the existing atomic_async_check() from struct drm_plane_helper_funcs to enhance this flexibility, thus allowing different plane types to be able to do async flips as well. Create a new parameter for the atomic_async_check(), `bool flip`. This parameter is used to distinguish when this function is being called from a plane update from a full page flip. In order to prevent regressions and such, we keep the current policy: we skip the driver check for the primary plane, because it is always allowed to do async flips on it. Signed-off-by: André Almeida <andrealmeid@igalia.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Christopher Snowhill <chris@kode54.net> Tested-by: Christopher Snowhill <chris@kode54.net> Link: https://patchwork.freedesktop.org/patch/msgid/20250127-tonyk-async_flip-v12-1-0f7f8a8610d3@igalia.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-02-13drm: Introduce device wedged eventRaag Jadav
Introduce device wedged event, which notifies userspace of 'wedged' (hanged/unusable) state of the DRM device through a uevent. This is useful especially in cases where the device is no longer operating as expected and has become unrecoverable from driver context. Purpose of this implementation is to provide drivers a generic way to recover the device with the help of userspace intervention without taking any drastic measures (like resetting or re-enumerating the full bus, on which the underlying physical device is sitting) in the driver. A 'wedged' device is basically a device that is declared dead by the driver after exhausting all possible attempts to recover it from driver context. The uevent is the notification that is sent to userspace along with a hint about what could possibly be attempted to recover the device from userspace and bring it back to usable state. Different drivers may have different ideas of a 'wedged' device depending on hardware implementation of the underlying physical device, and hence the vendor agnostic nature of the event. It is up to the drivers to decide when they see the need for device recovery and how they want to recover from the available methods. Driver prerequisites -------------------- The driver, before opting for recovery, needs to make sure that the 'wedged' device doesn't harm the system as a whole by taking care of the prerequisites. Necessary actions must include disabling DMA to system memory as well as any communication channels with other devices. Further, the driver must ensure that all dma_fences are signalled and any device state that the core kernel might depend on is cleaned up. All existing mmaps should be invalidated and page faults should be redirected to a dummy page. Once the event is sent, the device must be kept in 'wedged' state until the recovery is performed. New accesses to the device (IOCTLs) should be rejected, preferably with an error code that resembles the type of failure the device has encountered. This will signify the reason for wedging, which can be reported to the application if needed. Recovery -------- Current implementation defines three recovery methods, out of which, drivers can use any one, multiple or none. Method(s) of choice will be sent in the uevent environment as ``WEDGED=<method1>[,..,<methodN>]`` in order of less to more side-effects. If driver is unsure about recovery or method is unknown (like soft/hard system reboot, firmware flashing, physical device replacement or any other procedure which can't be attempted on the fly), ``WEDGED=unknown`` will be sent instead. Userspace consumers can parse this event and attempt recovery as per the following expectations. =============== ======================================== Recovery method Consumer expectations =============== ======================================== none optional telemetry collection rebind unbind + bind driver bus-reset unbind + bus reset/re-enumeration + bind unknown consumer policy =============== ======================================== The only exception to this is ``WEDGED=none``, which signifies that the device was temporarily 'wedged' at some point but was recovered from driver context using device specific methods like reset. No explicit recovery is expected from the consumer in this case, but it can still take additional steps like gathering telemetry information (devcoredump, syslog). This is useful because the first hang is usually the most critical one which can result in consequential hangs or complete wedging. Consumer prerequisites ---------------------- It is the responsibility of the consumer to make sure that the device or its resources are not in use by any process before attempting recovery. With IOCTLs erroring out, all device memory should be unmapped and file descriptors should be closed to prevent leaks or undefined behaviour. The idea here is to clear the device of all user context beforehand and set the stage for a clean recovery. Example ------- Udev rule:: SUBSYSTEM=="drm", ENV{WEDGED}=="rebind", DEVPATH=="*/drm/card[0-9]", RUN+="/path/to/rebind.sh $env{DEVPATH}" Recovery script:: #!/bin/sh DEVPATH=$(readlink -f /sys/$1/device) DEVICE=$(basename $DEVPATH) DRIVER=$(readlink -f $DEVPATH/driver) echo -n $DEVICE > $DRIVER/unbind echo -n $DEVICE > $DRIVER/bind Customization ------------- Although basic recovery is possible with a simple script, consumers can define custom policies around recovery. For example, if the driver supports multiple recovery methods, consumers can opt for the suitable one depending on scenarios like repeat offences or vendor specific failures. Consumers can also choose to have the device available for debugging or telemetry collection and base their recovery decision on the findings. This is useful especially when the driver is unsure about recovery or method is unknown. v4: s/drm_dev_wedged/drm_dev_wedged_event Use drm_info() (Jani) Kernel doc adjustment (Aravind) v5: Send recovery method with uevent (Lina) v6: Access wedge_recovery_opts[] using helper function (Jani) Use snprintf() (Jani) v7: Convert recovery helpers into regular functions (Andy, Jani) Aesthetic adjustments (Andy) Handle invalid recovery method v8: Allow sending multiple methods with uevent (Lucas, Michal) static_assert() globally (Andy) v9: Provide 'none' method for device reset (Christian) Provide recovery opts using switch cases v11: Log device reset (André) Signed-off-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: André Almeida <andrealmeid@igalia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204070528.1919158-2-raag.jadav@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-02-13drm/atomic-helper: Introduce drm_atomic_helper_reset_crtc()Herve Codina
drm_atomic_helper_reset_crtc() allows to reset the CRTC active outputs. This resets all active components available between the CRTC and connectors. Signed-off-by: Herve Codina <herve.codina@bootlin.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250210132620.42263-3-herve.codina@bootlin.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-13drm: Fix DSC BPP increment decodingImre Deak
Starting with DPCD version 2.0 bits 6:3 of the DP_DSC_BITS_PER_PIXEL_INC DPCD register contains the NativeYCbCr422_MAX_bpp_DELTA field, which can be non-zero as opposed to earlier DPCD versions, hence decoding the bit_per_pixel increment value at bits 2:0 in the same register requires applying a mask, do so. Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Fixes: 0c2287c96521 ("drm/display/dp: Add helper function to get DSC bpp precision") Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250212161851.4007005-1-imre.deak@intel.com
2025-02-13drm/i2c: tda998x: drop support for platform_dataDmitry Baryshkov
After the commit 0fb2970b4b6b ("drm/armada: remove non-component support") there are no remaining users of the struct tda998x_encoder_params. Drop the header and corresponding API from the TDA998x driver. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250113-drm-move-tda998x-v3-1-214e0682a5e4@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-02-12drm/sched: Use struct for drm_sched_init() paramsPhilipp Stanner
drm_sched_init() has a great many parameters and upcoming new functionality for the scheduler might add even more. Generally, the great number of parameters reduces readability and has already caused one missnaming, addressed in: commit 6f1cacf4eba7 ("drm/nouveau: Improve variable name in nouveau_sched_init()"). Introduce a new struct for the scheduler init parameters and port all users. Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Acked-by: Matthew Brost <matthew.brost@intel.com> # for Xe Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> # for Panfrost and Panthor Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com> # for Etnaviv Reviewed-by: Frank Binns <frank.binns@imgtec.com> # for Imagination Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> # for Sched Reviewed-by: Maíra Canal <mcanal@igalia.com> # for v3d Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Lizhi Hou <lizhi.hou@amd.com> # for amdxdna Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250211111422.21235-2-phasta@kernel.org
generated by cgit (git 2.34.1) at 2025-07-24 09:41:40 +0000