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2025-06-26drm/ttm, drm_xe, Implement ttm_lru_walk_for_evict() using the guarded LRU ↵Thomas Hellström
iteration To avoid duplicating the tricky bo locking implementation, Implement ttm_lru_walk_for_evict() using the guarded bo LRU iteration. To facilitate this, support ticketlocking from the guarded bo LRU iteration. v2: - Clean up some static function interfaces (Christian König) - Fix Handling -EALREADY from ticketlocking in the loop by skipping to the next item. (Intel CI) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250623155313.4901-4-thomas.hellstrom@linux.intel.com
2025-06-26drm/ttm, drm/xe: Modify the struct ttm_bo_lru_walk_cursor initializationThomas Hellström
Instead of the struct ttm_operation_ctx, Pass a struct ttm_lru_walk_arg to enable us to easily extend the walk functionality, and to implement ttm_lru_walk_for_evict() using the guarded LRU iteration. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250623155313.4901-3-thomas.hellstrom@linux.intel.com
2025-06-26drm/ttm: Use a struct for the common part of struct ttm_lru_walk and struct ↵Thomas Hellström
ttm_bo_lru_cursor Let the locking functions take the new struct ttm_lru_walk_arg as argument in order for them to be easily used from both types of walk. v2: - Whitespace fix Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250623155313.4901-2-thomas.hellstrom@linux.intel.com
2025-06-23drm/connector: move HDR sink metadata to display infoJani Nikula
Information parsed from the display EDID should be stored in display info. Move HDR sink metadata there. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250519112900.1383997-1-jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-06-23Merge drm/drm-next into drm-xe-nextRodrigo Vivi
Catch up on i915 changes to be able to include mtd driver for both xe and i915. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-06-23Merge tag 'drm-intel-next-2025-06-18' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next drm/i915 feature pull for v6.17: Features and functionality: - Add support for DSC fractional link bpp on DP MST (Imre) - Add support for simultaneous Panel Replay and Adaptive Sync (Jouni) - Add support for PTL+ double buffered LUT registers (Chaitanya, Ville) - Add PIPEDMC event handling in preparation for flip queue (Ville) Refactoring and cleanups: - Rename lots of DPLL interfaces to unify them (Suraj) - Allocate struct intel_display dynamically (Jani) - Abstract VLV IOSF sideband better (Jani) - Use str_true_false() helper (Yumeng Fang) - Refactor DSB code in preparation for flip queue (Ville) - Use drm_modeset_lock_assert_held() instead of open coding (Luca) - Remove unused arg from skl_scaler_get_filter_select() (Luca) - Split out a separate display register header (Jani) - Abstract DRAM detection better (Jani) - Convert LPT/WPT SBI sideband to struct intel_display (Jani) Fixes: - Fix DSI HS command dispatch with forced pipeline flush (Gareth Yu) - Fix BMG and LNL+ DP adaptive sync SDP programming (Ankit) - Fix error path for xe display workqueue allocation (Haoxiang Li) - Disable DP AUX access probe where not required (Imre) - Fix DKL PHY access if the port is invalid (Luca) - Fix PSR2_SU_STATUS access on ADL+ (Jouni) - Add sanity checks for porch and sync on BXT/GLK DSI (Ville) DRM core changes: - Change AUX DPCD access probe address (Imre) - Refactor EDID quirks, amd make them available to drivers (Imre) - Add quirk for DPCD access probe (Imre) - Add DPCD definitions for Panel Replay capabilities (Jouni) Merges: - Backmerges to sync with v6.15-rcs and v6.16-rc1 (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://lore.kernel.org/r/fff9f231850ed410bd81b53de43eff0b98240d31@intel.com
2025-06-20Merge tag 'drm-misc-next-2025-06-19' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 6.17: UAPI Changes: - Add Task Information for the wedge API Cross-subsystem Changes: Core Changes: - Fix warnings related to export.h - fbdev: Make CONFIG_FIRMWARE_EDID available on all architectures - fence: Fix UAF issues - format-helper: Improve tests Driver Changes: - ivpu: Add turbo flag, Add Wildcat Lake Support - rz-du: Improve MIPI-DSI Support - vmwgfx: fence improvement Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://lore.kernel.org/r/20250619-perfect-industrious-whippet-8ed3db@houat
2025-06-20Merge tag 'drm-xe-next-2025-06-18' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next UAPI Changes: - Expose media OA units (Ashutosh) Merge: - Restore GuC submit UAF fix around queue destruction accidentally removed in a drm-xe-fixes merge (Auld) Core Changes: - drm/gpusvm: Introduce devmem_only flag for allocation (Himal) - drm/gpusvm: Add timeslicing support to GPU SVM (Brost) Driver Changes: - Make gem shrinker drm managed (Thomas) - SRIOV VF Post-migration recovery of GGTT nodes and CTB (Tomasz) - Some W/A additions and updates (Aradhya, Shekhar, Vinay, Daniele) - Prefetch Support for svm ranges (Himal, Brost) - Don't allocate managed BO for each policy change (Michal) - Simplify and fix diff calculation in GuC submit (Lucas) - Track FAST_REQ GuC H2Gs to report where errors came from (John) - SRIOV PF: Don't allow LMEM provisioning if LMTT isn't available (Piotr) - Check if all domains awake for MOCS dump (Tejas) - Make creation of SLPC debugfs files conditional (Aradhya) - Default auto_link_downgrade status to false (Aradhya) - Use xe_mmio_read32() to read mtcfg register (Shuicheng) - Updates in PCI ID tables (Atwood, Shekhar) - SRIOV VF: Fail migration recovery if fixups needed but not supported (Tomasz) - Add missing documentation around freq and RPa (Rodrigo) - Some other SVM related fixes (Himal, Auld, Brost, Maarten) - Allow to trigger GT resets using debugfs writes (Michal) - Optimise CCS case for WB pages (Auld) - Create LRC BO without VM (Niranjana) - Initialize MOCS index early (Bala) - HWMON fixes for BMG (Karthik, Lucas) - Drop redundant conversion to bool (Raag) - Rework eviction rejection of bound external bos (Thomas) - Stop re-submitting signalled jobs (Auld) - Small fixes and cleanups for PXP (Daniele) - Convert some print messages to GT-oriented ones (Michal) - Resend potentially lost GuC H2G MMIO request (Michal) - Add configfs to load with fewer engines (Lucas) - Remove unmatched xe_vm_unlock from __xe_exec_queue_init (Maciej) - SRIOV VF: Small updates around GGTT handling (Michal) - Make VMA tile_present, tile_invalidated access rules clear (Brost) - Xe3 Tuning: Disable NULL query for Anyhit Shader (Nitin) - Fixes for VF GuC version (Daniele) - Don't store the xe device pointer inside xe_ttm_tt (Dave) - Small improvements in topology code (Michal) - Stop relying on GGTT internals (Maarten) - GSM size should be constant on most platforms (Roper) - Reorder 'Get pages failed' message (Brost) - WA BB related fixes and improvements (Lucas, Brost) - Fix early wedge on GuC load failure (Daniele) - Add helper function to inject fault into ct_dead_capture (Satyanarayana) - Determine ATS / PTA programming during early sw init (Roper) - Consolidate PAT programming logic for pre-Xe2 and post-Xe2 (Roper) - Fix kconfig prompt (Lucas) - Convert xe_pci tests to parametrized tests (Michal) - Do not kill VM in PT code on -ENODATA (Brost) - Move LRC_ENGINE_ID_PPHWSP_OFFSET outside of parallel offset (Brost) - Enable media OA (Ashutosh) - GuC log level tuning (Lucas) - Add xe_vm_has_valid_gpu_mapping helper (Brost) - Opportunistically skip TLB invalidaion on unbind (Brost) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/aFMb_NVF_oCW7UVl@intel.com
2025-06-18drm/xe: Add Wildcat Lake device IDs to PTL listMatt Roper
Introduce wildcat lake device Id. Wildcat Lake uses slightly different graphics and media IP versions than Panther Lake, but can still be treated as PTL for general driver flows. Bspec: 73951 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Link: https://lore.kernel.org/r/20250613193146.3549862-7-dnyaneshwar.bhadane@intel.com
2025-06-18drm/format-helper: Move drm_fb_build_fourcc_list() to sysfb helpersThomas Zimmermann
Only sysfb drivers use drm_fb_build_fourcc_list(). Move the function to sysfb helpers and rename it accordingly. Update drivers and tests. v3: - update naming in tests v2: - select DRM_SYSFB_HELPER (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: José Expósito <jose.exposito89@gmail.com> Acked-by: Maxime Ripard <mripard@kernel.org> Acked-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250616083846.221396-4-tzimmermann@suse.de
2025-06-18drm/tests: Do not use drm_fb_blit() in format-helper testsThomas Zimmermann
Export additional helpers from the format-helper library and open-code drm_fb_blit() in tests. Prepares for the removal of drm_fb_blit(). Only sysfb drivers use drm_fb_blit(). The function will soon be removed from format helpers and be refactored within sysfb helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: José Expósito <jose.exposito89@gmail.com> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250616083846.221396-2-tzimmermann@suse.de
2025-06-17drm: Create a task info option for wedge eventsAndré Almeida
When a device get wedged, it might be caused by a guilty application. For userspace, knowing which task was involved can be useful for some situations, like for implementing a policy, logs or for giving a chance for the compositor to let the user know what task was involved in the problem. This is an optional argument, when the task info is not available, the PID and TASK string won't appear in the event string. Sometimes just the PID isn't enough giving that the task might be already dead by the time userspace will try to check what was this PID's name, so to make the life easier also notify what's the task's name in the user event. Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com> Reviewed-by: Raag Jadav <raag.jadav@intel.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250617124949.2151549-4-andrealmeid@igalia.com Signed-off-by: André Almeida <andrealmeid@igalia.com>
2025-06-12drm/dp: Add an EDID quirk for the DPCD register access probeImre Deak
Reading DPCD registers has side-effects and some of these can cause a problem for instance during link training. Based on this it's better to avoid the probing quirk done before each DPCD register read, limiting this to the monitor which requires it. Add an EDID quirk for this. Leave the quirk enabled by default, allowing it to be disabled after the monitor is detected. v2: Fix lockdep wrt. drm_dp_aux::hw_mutex when calling drm_dp_dpcd_set_probe_quirk() with a dependent lock already held. v3: Add a helper for determining if DPCD probing is needed. (Jani) v4: - s/drm_dp_dpcd_set_probe_quirk/drm_dp_dpcd_set_probe (Jani) - Fix documentation of drm_dp_dpcd_set_probe(). - Add comment at the end of internal quirk entries. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250609125556.109538-1-imre.deak@intel.com
2025-06-12drm/edid: Add support for quirks visible to DRM core and driversImre Deak
Add support for EDID based quirks which can be queried outside of the EDID parser iteself by DRM core and drivers. There are at least two such quirks applicable to all drivers: the DPCD register access probe quirk and the 128b/132b DPRX Lane Count Conversion quirk (see 3.5.2.16.3 in the v2.1a DP Standard). The latter quirk applies to panels with specific EDID panel names, support for defining a quirk this way will be added as a follow-up. v2: Reset global_quirks in drm_reset_display_info(). v3: (Jani) - Use one list for both the global and internal quirks. - Drop change for panel name specific quirks. - Add comment about the way quirks should be queried. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-4-imre.deak@intel.com
2025-06-11drm/xe/xe2_hpg: Add PCI IDs for xe2_hpgShekhar Chauhan
As per updated Bspec, Sync PCI IDs for BMG. Bspec: 68090 Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com> Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20250605190804.1287289-2-dnyaneshwar.bhadane@intel.com
2025-06-11Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging to forward to v6.16-rc1 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2025-06-09Merge drm/drm-next into drm-xe-nextThomas Hellström
Backmerging to bring in 6.16 Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2025-06-09Merge drm/drm-next into drm-intel-nextJani Nikula
Sync to v6.16-rc1, among other things to get the fixed size GENMASK_U*() and BIT_U*() macros. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-06-06drm/bridge: add a .destroy funcLuca Ceresoli
Some users of DRM bridges may need to execute specific code just before deallocation. As of now the only known user would be KUnit tests. Suggested-by: Maxime Ripard <mripard@kernel.org> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://lore.kernel.org/r/20250606-drm-bridge-alloc-doc-test-v9-2-b5bf7b43ed92@bootlin.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-06-06drm/atomic-helper: Re-order bridge chain pre-enable and post-disableAradhya Bhatia
Move the bridge pre_enable call before crtc enable, and the bridge post_disable call after the crtc disable. The sequence of enable after this patch will look like: bridge[n]_pre_enable ... bridge[1]_pre_enable crtc_enable encoder_enable bridge[1]_enable ... bridge[n]_enable And, the disable sequence for the display pipeline will look like: bridge[n]_disable ... bridge[1]_disable encoder_disable crtc_disable bridge[1]_post_disable ... bridge[n]_post_disable The definition of bridge pre_enable hook says that, "The display pipe (i.e. clocks and timing signals) feeding this bridge will not yet be running when this callback is called". Since CRTC is also a source feeding the bridge, it should not be enabled before the bridges in the pipeline are pre_enabled. Fix that by re-ordering the sequence of bridge pre_enable and bridge post_disable. While at it, update the drm bridge API documentation as well. Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com> Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev> Tested-by: Devarsh Thakkar <devarsht@ti.com> Link: https://lore.kernel.org/r/20250605171524.27222-4-aradhya.bhatia@linux.dev Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-06-03Merge drm-next-2025-05-28 into drm-misc-nextMaxime Ripard
Christian needs a recent drm-next branch to merge fence patches. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-06-03drm/shmem-helper: Import dmabuf without mapping its sg_tableShixiong Ou
[WHY] 1. Drivers using DRM_GEM_SHADOW_PLANE_HELPER_FUNCS and DRM_GEM_SHMEM_DRIVER_OPS (e.g., udl, ast) do not require sg_table import. They only need dma_buf_vmap() to access the shared buffer's kernel virtual address. 2. On certain Aspeed-based boards, a dma_mask of 0xffff_ffff may trigger SWIOTLB during dmabuf import. However, IO_TLB_SEGSIZE restricts the maximum DMA streaming mapping memory, resulting in errors like: ast 0000:07:00.0: swiotlb buffer is full (sz: 3145728 bytes), total 32768 (slots), used 0 (slots) [HOW] Provide a gem_prime_import implementation without sg_table mapping to avoid issues (e.g., "swiotlb buffer is full"). Drivers that do not require sg_table can adopt this. Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20250522070714.439824-1-oushixiong1025@163.com
2025-05-30drm/gem: Inline drm_gem_pin() into PRIME helpersThomas Zimmermann
Inline drm_gem_pin() into its only caller drm_gem_map_attach() and update the documentation in the callback's purpose. Do the equivalent for drm_gem_unpin(). Also add stricter error checking on the involved locking. The pin operation in the GEM object functions is a helper for PRIME-exported buffer objects. Having drm_gem_pin() gives the impression of a general-purpose interface, which is not the case. Removing it makes the pin callback a bit harder to misuse. v2: - clarify comment on pin callback (Dmitry) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://lore.kernel.org/r/20250526132634.531789-5-tzimmermann@suse.de
2025-05-30drm/gem-vram: Un-export pin helpersThomas Zimmermann
There are no external callers of the gem-vram pin helpers. Hence unexport them. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://lore.kernel.org/r/20250526132634.531789-4-tzimmermann@suse.de
2025-05-29drm/dp: Add Panel Replay capability bits from DP2.1 specificationJouni Högander
Add PANEL REPLAY CAPABILITY register (0xb1) bits. v3: - added DP_DSC_DECODE_CAPABILITY definitions - use defined shift instead of hardcoded value v2: comment about DP2.1 changed as DP2.1a Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/20250526120512.1702815-3-jouni.hogander@intel.com
2025-05-29drm/panelreplay: Panel Replay capability DPCD register definitionsJouni Högander
Add new definition for size of Panel Replay DPCD capability registers area. Rename existing definitions to group capability registers together. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/20250526120512.1702815-2-jouni.hogander@intel.com
2025-05-28Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "As part of building up nova-core/nova-drm pieces we've brought in some rust abstractions through this tree, aux bus being the main one, with devres changes also in the driver-core tree. Along with the drm core abstractions and enough nova-core/nova-drm to use them. This is still all stub work under construction, to build the nova driver upstream. The other big NVIDIA related one is nouveau adds support for Hopper/Blackwell GPUs, this required a new GSP firmware update to 570.144, and a bunch of rework in order to support multiple fw interfaces. There is also the introduction of an asahi uapi header file as a precursor to getting the real driver in later, but to unblock userspace mesa packages while the driver is trapped behind rust enablement. Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe, and msm being the main ones, and some changes to vsprintf. new drivers: - bring in the asahi uapi header standalone - nova-drm: stub driver rust dependencies (for nova-core): - auxiliary - bus abstractions - driver registration - sample driver - devres changes from driver-core - revocable changes core: - add Apple fourcc modifiers - add virtio capset definitions - extend EXPORT_SYNC_FILE for timeline syncobjs - convert to devm_platform_ioremap_resource - refactor shmem helper page pinning - DP powerup/down link helpers - extended %p4cc in vsprintf.c to support fourcc prints - change vsprintf %p4cn to %p4chR, remove %p4cn - Add drm_file_err function - IN_FORMATS_ASYNC property - move sitronix from tiny to their own subdir rust: - add drm core infrastructure rust abstractions (device/driver, ioctl, file, gem) dma-buf: - adjust sg handling to not cache map on attach - allow setting dma-device for import - Add a helper to sort and deduplicate dma_fence arrays docs: - updated drm scheduler docs - fbdev todo update - fb rendering - actual brightness ttm: - fix delayed destroy resv object bridge: - add kunit tests - convert tc358775 to atomic - convert drivers to devm_drm_bridge_alloc - convert rk3066_hdmi to bridge driver scheduler: - add kunit tests panel: - refcount panels to improve lifetime handling - Powertip PH128800T004-ZZA01 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00 - Himax HX8279/HX8279-D DDIC - Visionox G2647FB105 - Sitronix ST7571 - ZOTAC rotation quirk vkms: - allow attaching more displays i915: - xe3lpd display updates - vrr refactor - intel_display struct conversions - xe2hpd memory type identification - add link rate/count to i915_display_info - cleanup VGA plane handling - refactor HDCP GSC - fix SLPC wait boosting reference counting - add 20ms delay to engine reset - fix fence release on early probe errors xe: - SRIOV updates - BMG PCI ID update - support separate firmware for each GT - SVM fix, prelim SVM multi-device work - export fan speed - temp disable d3cold on BMG - backup VRAM in PM notifier instead of suspend/freeze - update xe_ttm_access_memory to use GPU for non-visible access - fix guc_info debugfs for VFs - use copy_from_user instead of __copy_from_user - append PCIe gen5 limitations to xe_firmware document amdgpu: - DSC cleanup - DC Scaling updates - Fused I2C-over-AUX updates - DMUB updates - Use drm_file_err in amdgpu - Enforce isolation updates - Use new dma_fence helpers - USERQ fixes - Documentation updates - SR-IOV updates - RAS updates - PSP 12 cleanups - GC 9.5 updates - SMU 13.x updates - VCN / JPEG SR-IOV updates amdkfd: - Update error messages for SDMA - Userptr updates - XNACK fixes radeon: - CIK doorbell cleanup nouveau: - add support for NVIDIA r570 GSP firmware - enable Hopper/Blackwell support nova-core: - fix task list - register definition infrastructure - move firmware into own rust module - register auxiliary device for nova-drm nova-drm: - initial driver skeleton msm: - GPU: - ACD (adaptive clock distribution) for X1-85 - drop fictional address_space_size - improve GMU HFI response time out robustness - fix crash when throttling during boot - DPU: - use single CTL path for flushing on DPU 5.x+ - improve SSPP allocation code for better sharing - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550 - Added SAR2130P support - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660 - DP: - switch to new audio helpers - better LTTPR handling - DSI: - Added support for SA8775P - Added SAR2130P support - HDMI: - Switched to use new helpers for ACR data - Fixed old standing issue of HPD not working in some cases amdxdna: - add dma-buf support - allow empty command submits renesas: - add dma-buf support - add zpos, alpha, blend support panthor: - fail properly for NO_MMAP bos - add SET_LABEL ioctl - debugfs BO dumping support imagination: - update DT bindings - support TI AM68 GPU hibmc: - improve interrupt handling and HPD support virtio: - add panic handler support rockchip: - add RK3588 support - add DP AUX bus panel support ivpu: - add heartbeat based hangcheck mediatek: - prepares support for MT8195/99 HDMIv2/DDCv2 anx7625: - improve HPD tegra: - speed up firmware loading * tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits) drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr() drm/xe: Default auto_link_downgrade status to false drm/xe/guc: Make creation of SLPC debugfs files conditional drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue() drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read drm/i915/ptl: Use everywhere the correct DDI port clock select mask drm/nouveau/kms: add support for GB20x drm/dp: add option to disable zero sized address only transactions. drm/nouveau: add support for GB20x drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle drm/nouveau: add support for GB10x drm/nouveau/gf100-: track chan progress with non-WFI semaphore release drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos drm/nouveau: add support for GH100 drm/nouveau: improve handling of 64-bit BARs drm/nouveau/gv100-: switch to volta semaphore methods drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM ...
2025-05-28drm: Get rid of drm_sched_job.idPierre-Eric Pelloux-Prayer
Its only purpose was for trace events, but jobs can already be uniquely identified using their fence. The downside of using the fence is that it's only available after 'drm_sched_job_arm' was called which is true for all trace events that used job.id so they can safely switch to using it. Suggested-by: Tvrtko Ursulin <tursulin@igalia.com> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Arvind Yadav <arvind.yadav@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://lore.kernel.org/r/20250526125505.2360-9-pierre-eric.pelloux-prayer@amd.com
2025-05-28drm/sched: Store the drm client_id in drm_sched_fencePierre-Eric Pelloux-Prayer
This will be used in a later commit to trace the drm client_id in some of the gpu_scheduler trace events. This requires changing all the users of drm_sched_job_init to add an extra parameter. The newly added drm_client_id field in the drm_sched_fence is a bit of a duplicate of the owner one. One suggestion I received was to merge those 2 fields - this can't be done right now as amdgpu uses some special values (AMDGPU_FENCE_OWNER_*) that can't really be translated into a client id. Christian is working on getting rid of those; when it's done we should be able to squash owner/drm_client_id together. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://lore.kernel.org/r/20250526125505.2360-3-pierre-eric.pelloux-prayer@amd.com
2025-05-27Merge tag 'docs-6.16' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "A moderately busy cycle for documentation this time around: - The most significant change is the replacement of the old kernel-doc script (a monstrous collection of Perl regexes that predates the Git era) with a Python reimplementation. That, too, is a horrifying collection of regexes, but in a much cleaner and more maintainable structure that integrates far better with the Sphinx build system. This change has been in linux-next for the full 6.15 cycle; the small number of problems that turned up have been addressed, seemingly to everybody's satisfaction. The Perl kernel-doc script remains in tree (as scripts/kernel-doc.pl) and can be used with a command-line option if need be. Unless some reason to keep it around materializes, it will probably go away in 6.17. Credit goes to Mauro Carvalho Chehab for doing all this work. - Some RTLA documentation updates - A handful of Chinese translations - The usual collection of typo fixes, general updates, etc" * tag 'docs-6.16' of git://git.lwn.net/linux: (85 commits) Docs: doc-guide: update sphinx.rst Sphinx version number docs: doc-guide: clarify latest theme usage Documentation/scheduler: Fix typo in sched-stats domain field description scripts: kernel-doc: prevent a KeyError when checking output docs: kerneldoc.py: simplify exception handling logic MAINTAINERS: update linux-doc entry to cover new Python scripts docs: align with scripts/syscall.tbl migration Documentation: NTB: Fix typo Documentation: ioctl-number: Update table intro docs: conf.py: drop backward support for old Sphinx versions Docs: driver-api/basics: add kobject_event interfaces Docs: relay: editing cleanups docs: fix "incase" typo in coresight/panic.rst Fix spelling error for 'parallel' docs: admin-guide: fix typos in reporting-issues.rst docs: dmaengine: add explanation for DMA_ASYNC_TX capability Documentation: leds: improve readibility of multicolor doc docs: fix typo in firmware-related section docs: Makefile: Inherit PYTHONPYCACHEPREFIX setting as env variable Documentation: ioctl-number: Update outdated submission info ...
2025-05-26drm/ttm: make ttm_bo_get internalChristian König
Prevent drivers from using this directly. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://lore.kernel.org/r/20240723121750.2086-8-christian.koenig@amd.com
2025-05-26drm/ttm: revert "Export ttm_bo_get_unless_zero()"Christian König
This reverts commit 24dc64c1ba5c3ef0463d59fef6df09336754188d. Shouldn't be needed by drivers any more. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch> Link: https://lore.kernel.org/r/20240723121750.2086-6-christian.koenig@amd.com
2025-05-26drm: Add helpers for programming hardware gamma LUTsThomas Zimmermann
Provide helpers that program hardware gamma LUTs. Tha gamma ramp is either provided by the driver or generated by the helper. The DRM driver exports the GAMMA_LUT property with a fixed number of entries per color component, such as 256 on 8-bit-wide components. The entries describe the gamma ramp of each individual component. The new helper drm_crtc_load_gamma_888() loads such gamma ramp to hardware. The hardware uses each displayed pixel's individial components as indices into the hardware gamma table. For color modes with less than 8 bits per color component, the helpers drm_crtc_load_gamma_565_from() and drm_crtc_load_gamma_555_from_888() interpolate the provided gamma ramp to reduce it to the correct number of entries; 5/6/5 for RGB565-like formats and 5/5/5 for XRGB1555-like formats. If no gamma ramp has been provided, drivers can use the new helper drm_crtc_fill_gamma_888() to load a default gamma ramp with 256 entries per color component. For color modes with less bits, the new helpers drm_crtc_fill_gamma_565() and drm_crtc_fill_gamma_555() are available. The default gamma ramp uses a gamma factor of 1. For color modes with palette, drm_crtc_load_palette_8() load an 8-bit palette into the hardware. If no palette has been specified, drm_crtc_fill_palette_8() load a system-specific default palette. This is currently only a grey-scale palette with increasing luminance, but later patches can change this. For PCs, a VGA default palette could be used. v2: - drop comment on gamma factor of 2.2 (Michel, Pekka) - fix typos in commit description (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Acked-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250520094203.30545-2-tzimmermann@suse.de
2025-05-22drm/xe/ptl: Update the PTL pci id tableMatt Atwood
Update to current bspec table. Bspec: 72574 Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://lore.kernel.org/r/20250520195749.371748-1-matthew.s.atwood@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> (cherry picked from commit 49c6dc74b5968885f421f9f1b45eb4890b955870) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-22drm/bridge: fix build with CONFIG_OF=nLuca Ceresoli
Commit 5164553d739e ("drm/bridge: add devm_drm_put_bridge()") adds two declarations for devm_drm_put_bridge(): 1) an inline declaration in the #else branch of '#if defined(CONFIG_OF)...' 2) one outside of the same #if This results in a build failure with CONFIG_OF=n: ../drivers/gpu/drm/drm_bridge.c:1406:6: error: redefinition of ‘devm_drm_put_bridge’ The function has nothing to do with OF, thus fix by removing declaration 1. Fixes: 5164553d739e ("drm/bridge: add devm_drm_put_bridge()") Reported-by: Ville Syrjala <ville.syrjala@linux.intel.com> Closes: https://oftc.catirclogs.org/dri-devel/2025-05-21#34288266; Tested-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Link: https://lore.kernel.org/r/20250522-devm_drm_put_bridge-fix-non-of-build-v1-1-a05234dea046@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-05-21drm/xe/ptl: Update the PTL pci id tableMatt Atwood
Update to current bspec table. Bspec: 72574 Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://lore.kernel.org/r/20250520195749.371748-1-matthew.s.atwood@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2025-05-21drm/bridge: add devm_drm_put_bridge()Luca Ceresoli
Bridges obtained via devm_drm_bridge_alloc(dev, ...) will be put when the requesting device (@dev) is removed. However drivers which obtained them may need to put the obtained reference explicitly. One such case is if they bind the devm removal action to a different device than the one implemented by the driver itself and which might be removed at a different time, such as bridge/panel.c. Add devm_drm_put_bridge() to manually release a devm-obtained bridge in such cases. This function is considered only a temporary workaround until the panel bridge is reworked and should be removed afterwards. Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250509-drm-bridge-convert-to-alloc-api-v3-20-b8bc1f16d7aa@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-05-21drm/display: bridge-connector: handle CEC adaptersDmitry Baryshkov
Implement necessary glue code to let DRM bridge drivers to implement CEC adapters support. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-9-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21drm/display: bridge-connector: hook in CEC notifier supportDmitry Baryshkov
Allow HDMI DRM bridges to create CEC notifier. Physical address is handled automatically by drm_atomic_helper_connector_hdmi_hotplug() being called from .detect() path. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-8-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21drm/display: add CEC helpers codeDmitry Baryshkov
Add generic CEC helpers to be used by HDMI drivers. Both notifier and and adapter are supported for registration. Once registered, the driver can call common set of functions to update physical address, to invalidate it or to unregister CEC data. Unlike drm_connector_cec_funcs (which provides interface common to all implementations, including, but not limited to the CEC adapter, CEC notifier, CEC pin-based adapter, etc) the struct drm_connector_hdmi_cec_adapter_ops provides callbacks specific to the CEC adapter implementations. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-5-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21drm/connector: add CEC-related fieldsDmitry Baryshkov
As a preparation to adding HDMI CEC helper code, add CEC-related fields to the struct drm_connector. The callbacks abstract CEC infrastructure in order to support CEC adapters and CEC notifiers in a universal way. CEC data is a void pointer as it allows us to make CEC data helper-specific. For example, currently it will be either cec_notifier or cec_adapter + drm_connector_hdmi_cec_funcs. Later cec-pin might store platform callbacks here. DP CEC might need to store AUX pointer, etc. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-3-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21drm/bridge: allow limiting I2S formatsDmitry Baryshkov
By default HDMI codec registers all formats supported on the I2S bus. Allow bridges (and connectors) to limit the list of the PCM formats supported by the HDMI codec. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-2-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21drm/bridge: move private data to the end of the structDmitry Baryshkov
WHen adding HDMI fields I didn't notice the private: declaration for HPD fields. Move private fields to the end of the struct drm_bride to have clear distinction between private and public fields. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-1-35651db6f19b@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-21Merge tag 'nova-next-v6.16-2025-05-20' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/nova into drm-next Nova changes for v6.16 auxiliary: - bus abstractions - implementation for driver registration - add sample driver drm: - implement __drm_dev_alloc() - DRM core infrastructure Rust abstractions - device, driver and registration - DRM IOCTL - DRM File - GEM object - IntoGEMObject rework - generically implement AlwaysRefCounted through IntoGEMObject - refactor unsound from_gem_obj() into as_ref() - refactor into_gem_obj() into as_raw() driver-core: - merge topic/device-context-2025-04-17 from driver-core tree - implement Devres::access() - fix: doctest build under `!CONFIG_PCI` - accessor for Device::parent() - fix: conditionally expect `dead_code` for `parent()` - impl TryFrom<&Device> bus devices (PCI, platform) nova-core: - remove completed Vec extentions from task list - register auxiliary device for nova-drm - derive useful traits for Chipset - add missing GA100 chipset - take &Device<Bound> in Gpu::new() - infrastructure to generate register definitions - fix register layout of NV_PMC_BOOT_0 - move Firmware into own (Rust) module - fix: select AUXILIARY_BUS nova-drm: - initial driver skeleton (depends on drm and auxiliary bus abstractions) - fix: select AUXILIARY_BUS Rust (dependencies): - implement Opaque::zeroed() - implement Revocable::try_access_with() - implement Revocable::access() From: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/aCxAf3RqQAXLDhAj@cassiopeiae
2025-05-19drm/dp: add option to disable zero sized address only transactions.Dave Airlie
Some older NVIDIA and some newer NVIDIA hardware/firmware seems to have issues with address only transactions (firmware rejects them). Add an option to the core drm dp to avoid address only transactions, This just puts the MOT flag removal on the last message of the transfer and avoids the start of transfer transaction. This with the flag set in nouveau, allows eDP probing on GB203 device. Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Ben Skeggs <bskeggs@nvidia.com> Reviewed-by: Timur Tabi <ttabi@nvidia.com> Tested-by: Timur Tabi <ttabi@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2025-05-15Merge tag 'drm-misc-next-2025-05-12' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.16-rc1: Once more, with async flips. UAPI Changes: - Add IN_FORMATS_ASYNC property, use in i915. Cross-subsystem Changes: - Remove some unused debug code in dma-buf. Core Changes: Driver Changes: - Add Novatek NT37801 panel. - Allow submitting empty commands in amdxdna. - Convert cirrus to use managed request_all_regions. - Move Sitronix from tiny to their own place. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://lore.kernel.org/r/23ded62c-6a62-4195-9c08-4dfb81eafd72@linux.intel.com
2025-05-14drm/gpusvm: Add timeslicing support to GPU SVMMatthew Brost
Add timeslicing support to GPU SVM which will guarantee the GPU a minimum execution time on piece of physical memory before migration back to CPU. Intended to implement strict migration policies which require memory to be in a certain placement for correct execution. Required for shared CPU and GPU atomics on certain devices. Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory") Cc: stable@vger.kernel.org Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://lore.kernel.org/r/20250512135500.1405019-4-matthew.brost@intel.com (cherry picked from commit 8dc1812b5b3a42311d28eb385eed88e2053ad3cb) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-14drm/xe: Strict migration policy for atomic SVM faultsMatthew Brost
Mixing GPU and CPU atomics does not work unless a strict migration policy of GPU atomics must be device memory. Enforce a policy of must be in VRAM with a retry loop of 3 attempts, if retry loop fails abort fault. Removing always_migrate_to_vram modparam as we now have real migration policy. v2: - Only retry migration on atomics - Drop alway migrate modparam v3: - Only set vram_only on DGFX (Himal) - Bail on get_pages failure if vram_only and retry count exceeded (Himal) - s/vram_only/devmem_only - Update xe_svm_range_is_valid to accept devmem_only argument v4: - Fix logic bug get_pages failure v5: - Fix commit message (Himal) - Mention removing always_migrate_to_vram in commit message (Lucas) - Fix xe_svm_range_is_valid to check for devmem pages - Bail on devmem_only && !migrate_devmem (Thomas) v6: - Add READ_ONCE barriers for opportunistic checks (Thomas) - Pair READ_ONCE with WRITE_ONCE (Thomas) v7: - Adjust comments (Thomas) Fixes: 2f118c949160 ("drm/xe: Add SVM VRAM migration") Cc: stable@vger.kernel.org Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Acked-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://lore.kernel.org/r/20250512135500.1405019-3-matthew.brost@intel.com (cherry picked from commit a9ac0fa455b050d03e3032501368048fb284d318) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-14drm/gpusvm: Introduce devmem_only flag for allocationHimal Prasad Ghimiray
This commit adds a new flag, devmem_only, to the drm_gpusvm structure. The purpose of this flag is to ensure that the get_pages function allocates memory exclusively from the device's memory. If the allocation from device memory fails, the function will return an -EFAULT error. Required for shared CPU and GPU atomics on certain devices. v3: - s/vram_only/devmem_only/ Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory") Cc: stable@vger.kernel.org Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250512135500.1405019-2-matthew.brost@intel.com (cherry picked from commit 8a9b978ebd47df9e0694c34748c2d6fa0c31eb4d) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-14drm/gpusvm: Introduce drm_gpusvm_find_vma_start() functionHimal Prasad Ghimiray
The drm_gpusvm_find_vma_start() function is used to determine the starting address of a CPU VMA within a specified user range. If the range does not contain any VMA, the function returns ULONG_MAX. v2 - Rename function as drm_gpusvm_find_vma_start() (Matthew Brost) - mmget/mmput v3 - s/mmget/mmget_not_zero/ Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250513040228.470682-13-himal.prasad.ghimiray@intel.com Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-04 13:07:54 +0000