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2026-05-16Merge tag 'drm-misc-fixes-2026-05-15' of ↵Dave Airlie1-0/+2
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: bridge: - imx8qxp-pxl2dpi: avoid ERR_PTR with device_node cleanup gma500: - oaktrail_lvds: fix i2c handling loongson: - use managed cleanup for connector polling panfrost: - handle results from reservation locking correctly qaic: - check for integer overflows in mmap logic rocket: - handle results from reservation locking correctly ttm: - avoid infinite loop in swap out - avoid infinite loop in BO shrinking - convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20260515070816.GA88575@2a02-2455-9062-2500-7dec-552d-233d-9fe0.dyn6.pyur.net
2026-05-15Merge tag 'drm-intel-next-2026-05-14' of ↵Dave Airlie1-0/+42
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next - A Revert of a Kconfig patch that broke some builds (Jani) - New fb_pin abstraction for xe and i915 fb transparent handling (Ville, Tvrtko) - Skip inactive MST connectors on HDCP cases (Suraj) - Reduce redundant intel_panel_fixed_mode (Ankit) - Some general fixes (Imre, Chaitanya) - Reorganize display documentation (Jani) - Start switching to display specific reg types (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/agXbLMtMECnKy-YV@intel.com
2026-05-15Merge tag 'drm-xe-next-2026-05-14' of ↵Dave Airlie1-1/+5
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next Driver Changes: - drm/xe/cri: Add new PCI IDs (Balasubramani Vivekanandan) - drm/xe/memirq: Enable GT_MI_USER_INTERRUPT only (Michal Wajdeczko) - drm/xe/memirq: Update interrupt handler logic (Michal Wajdeczko) - drm/xe: Drop unused ggtt_balloon field (Michal Wajdeczko) - drm/xe: Refactor emit_xy_fast_copy and emit_mem_copy functions (Balasubramani Vivekanandan) - drm/xe: Refactor emit_clear_link_copy (Balasubramani Vivekanandan) - drm/xe: Refactor emit_clear_main_copy (Balasubramani Vivekanandan) - drm/xe/devcoredump: Drop a FIXME in devcoredump (Shekhar Chauhan) - drm/xe/oa: MERTOA Wa_14026779378 (Ashutosh Dixit) - drm/xe/oa: Add val arg to xe_oa_is_valid_config_reg (Ashutosh Dixit) - drm/xe/oa: MERTOA Wa_14026746987 (Ashutosh Dixit) - drm/xe/oa: Refactor oa_unit_supports_oa_format (Ashutosh Dixit) - drm/xe/dma-buf: fix UAF with retry loop (Matthew Auld) - drm/xe/dma-buf: handle empty bo and UAF races (Matthew Auld) - drm/xe/multi_queue: Whitelist QUEUE_TIMESTAMP register (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Use QUEUE_TIMESTAMP as job timestamp for multi-queue (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Add trace event for the multi queue timestamp (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Capture queue run times for active queues (Umesh Nerlige Ramappa) - drm/xe/lrc: Refactor out engine id to hwe conversion (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Add helpers to access CS QUEUE TIMESTAMP from lrc (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Store primary LRC and position info in LRC (Umesh Nerlige Ramappa) - drm/xe/multi_queue: Refactor check for multi queue support for engine class (Umesh Nerlige Ramappa) - drm/xe/lrc: Refactor xe_lrc_timestamp to simplify logic (Umesh Nerlige Ramappa) - drm/xe: Add timestamp_ms to LRC snapshot (Matthew Brost) - drm/xe/lrc: Use 64 bit ctx timestamp in the LRC snapshot (Umesh Nerlige Ramappa) - drm/xe/eustall: Return ENODEV from read if EU stall registers get reset (Harish Chegondi) - drm/xe/multi_queue: Refactor CGP_SYNC send path (Niranjana Vishwanathapura) - drm/xe/multi_queue: Remove redundant assignment in guc_exec_queue_run_job (Niranjana Vishwanathapura) - drm/xe: Make decision to use Xe2-style blitter instructions a feature flag (Matt Roper) - drm/xe: Convert stolen memory over to ttm_range_manager (Sanjay Yadav) - drm/xe/madvise: Track purgeability with BO-local counters (Arvind Yadav) - drm/xe/xe_survivability: Simplify runtime survivability error handling (Mallesh Koujalagi) - drm/xe/guc: Exclude indirect ring state page from ADS engine state size (Satyanarayana K V P) - drm/xe/hw_error: Cleanup array map (Raag Jadav) - drm/xe/pf: Fix MMIO access using PF view instead of VF view during migration (Shuicheng Lin) - drm/xe/pf: Fix EAGAIN sign in pf_migration_consume() (Shuicheng Lin) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com> Link: https://patch.msgid.link/agXMKRRl1oxB204x@fedora
2026-05-13drm/ttm: Support 52-bit PAs in ttm_placeFelix Kuehling1-2/+2
fpfn and lpfn in struct ttm_place are 32-bit page numbers. With 4KB page size this can support up to 44-bit physical addressing. Grow these to 64-bit (uint64_t) to support larger physical addresses. Signed-off-by: Felix Kuehling <felix.kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Link: https://patch.msgid.link/20260513141253.20410-1-felix.kuehling@amd.com
2026-05-11drm/i915: Introduce the main fb_pin parent interfaceVille Syrjälä1-0/+22
Introduce the main part of the new fb_pin parent interface: - intel_parent_fb_pin_ggtt_(un)pin() - intel_parent_fb_pin_dpt_(un)pin() - intel_parent_fb_pin_reuse_vma() Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260508143426.26504-14-ville.syrjala@linux.intel.com
2026-05-11drm/i915: Move intel_fb_pin_params to the parent interfaceVille Syrjälä1-0/+12
strut intel_fb_pin_params will be an important part of the fb_pin interface, so move the definition to the parent interface file. Or maybe we should have a separate header for this kind of stuff since the users of the parent interface will need the struct definition but not the parent interface vfunc struct definitions? Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260508143426.26504-3-ville.syrjala@linux.intel.com
2026-05-11drm/i915: Introduce intel_parent_fb_pin_get_map()Ville Syrjälä1-0/+8
Introduce the "fb_pin" parent interface, as the first trivial step move the *_get_map() stuff there. The whole "fb_pin" as an interface might not really make sense, and perhaps this (and other stuff) should just be collected into some kind of "bo" interface. But let's go with "fb_pin" for now to match where things are implemented, and possibly restructure it later. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260508143426.26504-2-ville.syrjala@linux.intel.com
2026-05-11drm/dp: Store coasting vtotal in struct drm_dp_as_sdpAnkit Nautiyal1-0/+1
Add new field in struct drm_dp_as_sdp to store coasting vtotal. This is used by the sinks that support Panel Replay and Asynchronous timing during PR Active to derive refresh rate, when AS SDP transmission is stopped by the source. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260428074457.3566918-7-ankit.k.nautiyal@intel.com
2026-05-11drm/dp: Add DPCD for configuring AS SDP for PR + VRRAnkit Nautiyal1-0/+6
Add additional DPCDs required to be configured to support VRR with Panel Replay. These DPCDs are specifically required for configuring Adaptive Sync SDP and are introduced in DP v2.1. v2: - Correct the shift for the bits. (Ville) - Add DP_PR_ prefix for the PR-related fields. v3: - Use macro values in their shifted form to match the convention. (Ville) v4: - Add macro for the mask. (Ville) Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260428074457.3566918-5-ankit.k.nautiyal@intel.com
2026-05-11drm/dp: Add bits for AS SDP FAVT Payload Fields Parsing supportAnkit Nautiyal1-0/+1
DP v2.1 introduced support for sending AS SDP payload bytes for FAVT. Add the relavant bits for the same. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260428074457.3566918-4-ankit.k.nautiyal@intel.com
2026-05-11drm/dp: Clean up DPRX feature enumeration macrosAnkit Nautiyal1-4/+4
Align the DP_DPRX feature enumeration macros for better readability and consistency, and use the BIT() macro instead of open-coded shifts. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260428074457.3566918-3-ankit.k.nautiyal@intel.com
2026-05-11drm/dp: Rename and relocate AS SDP payload field masksAnkit Nautiyal1-2/+3
The AS SDP payload field masks were misnamed and placed under the DPRX feature enumeration list. These are not DPRX capability bits, but are payload field masks for the Adaptive Sync SDP. Relocate both masks next to the AS SDP definitions. Update users to the corrected names. No functional change. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260428074457.3566918-2-ankit.k.nautiyal@intel.com
2026-05-11drm/panel: Make drm_panel_init() staticAlbert Esteve1-4/+0
Now that all panel drivers use devm_drm_panel_alloc(), there are no external callers of drm_panel_init(). Make it static to prevent new users from bypassing the refcounted allocation path. Remove stale references to drm_panel_init() in kdocs. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Albert Esteve <aesteve@redhat.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20260508-drm_panel_init_rm-v2-10-0bd4ac429971@redhat.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-05-08drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failureThomas Hellström1-0/+2
When ttm_tt_swapout() fails, the current code calls ttm_resource_add_bulk_move() followed by ttm_resource_move_to_lru_tail() to restore the resource's bulk_move membership. However, ttm_resource_move_to_lru_tail() places the resource at the tail of the LRU list which, relative to the walk cursor's hitch node (placed immediately after the resource when it was yielded), puts the resource *in front of the* the hitch. The next list_for_each_entry_continue() from the hitch finds the same resource again, causing an infinite loop. Fix by deferring del_bulk_move to the success path only. On the success path, TTM_TT_FLAG_SWAPPED has just been set by ttm_tt_swapout() but the resource is still tracked in the bulk_move range, so ttm_resource_del_bulk_move()'s !ttm_resource_unevictable() guard would incorrectly skip the removal. Introduce ttm_resource_del_bulk_move_unevictable() which bypasses that guard. Reported-by: Jatin Kataria <jkataria@netflix.com> Fixes: fc5d96670eb2 ("drm/ttm: Move swapped objects off the manager's LRU list") Cc: Christian König <christian.koenig@amd.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: <dri-devel@lists.freedesktop.org> Cc: <stable@vger.kernel.org> # v6.13+ Assisted-by: GitHub_Copilot:claude-sonnet-4.6 Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Tested-by: Boqun Feng <boqun@kernel.org> Link: https://patch.msgid.link/20260428094442.16985-1-thomas.hellstrom@linux.intel.com
2026-05-08Merge drm/drm-next into drm-xe-nextThomas Hellström38-331/+1041
Bringing in recent display changes. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2026-05-08Merge tag 'drm-misc-next-2026-05-07' of ↵Dave Airlie3-7/+3
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v7.2-rc1: UAPI Changes: - Support medium/low power modes in amdxdna. - Support limiting frequency in ivpu. - Document license for drm core uAPI headers. - Add the following DRM formats: P230, Y7, XYYY2101010, T430, XVUY210101010. Cross-subsystem Changes: - Add and improve dt-bindings. - Remove unused dma-fence-array's signal_on_any support. Core Changes: - Do not call drop_master on file close if not master. - Convert drm-bridge and drm/atomic to use drm_printf_indent. - Remove the extra call to drm_connector_attach_encoder after drm_bridge_connector_init(). - Assorted docbook updates. Driver Changes: - Bugfixes in amdxdna, ivpu, mipi-dsi, imagination, nouveau, panthor, bridge/analogix_dp, ipv3, lontium-lt8912b, verisilicon, tve200, etnaviv, panel/focaltech-ota7290b, panel/jadard-jd9365da-h3, bridge/ite-it6263, renesas, xlnx, bridge/cdns-dsi, gma500, bridge/microchip-lvds, mgag200. - Add support for MStar TSUMU88ADT3-LF-1 bridge. - Add support for WaveShare 7, Novatek NT35532, Startek KD070HDFLD092, ChipWealth CH13726A AMOLED, Team Source Display TST070WSNE-196C, Displaytech DT050BTFT-PTS panels. - Improve mipi-dsi shutdown and convert a panasonic panel to use the mipi-dsi wrappers. - Allowing dumping vbios over debugfs in GSP-RM mode. - Update maintainers for ivpu, add reviewer for drm-bridge code and update maintainers for LT8912B DRM HDMI bridge. - Add test pattern support to bridge/ti-sn65dsi83. - Convert vmwgfx to vblank timers. - Add power management to sysfb drm drivers to allow suspend/resume. - Support the aforementioned new drm formats in xlnx/qynqmp. - Fix panel Kconfig dependencies. - Add carveout support for debugging and bringup to amxdna. - Add support for long command tx via videobuffer in bridge/tc358768. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/f73f342d-6efb-416d-81b0-1716bdd98d5f@linux.intel.com
2026-05-07Merge drm/drm-next into drm-misc-nextMaxime Ripard26-237/+844
Merge drm-next to bring the drm_atomic_state renaming patch. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-05-07drm/gpusvm: Drop redundant @flags.* kernel-doc on struct drm_gpusvm_pagesShuicheng Lin1-6/+1
The kernel-doc block above struct drm_gpusvm_pages duplicates the descriptions of the bit-flags that live in struct drm_gpusvm_pages_flags using dotted notation (@flags.migrate_devmem, @flags.unmapped, ...). That dotted notation is intended for nested anonymous structs/unions that the parser flattens into the parent's parameter list. Here, however, flags is of a named external type, so the parser does not flatten its members and the dotted entries do not match any member of drm_gpusvm_pages. They also duplicate the canonical descriptions already present in the kernel-doc of struct drm_gpusvm_pages_flags itself. Drop the five @flags.* lines and replace them with a single @flags entry that cross-references the type via kernel-doc's "&struct ..." syntax. This eliminates the redundancy and removes warnings emitted by the new parameterdescs check in scripts/kernel-doc: Excess struct member 'flags.migrate_devmem' description in 'drm_gpusvm_pages' Excess struct member 'flags.unmapped' description in 'drm_gpusvm_pages' Excess struct member 'flags.partial_unmap' description in 'drm_gpusvm_pages' Excess struct member 'flags.has_devmem_pages' description in 'drm_gpusvm_pages' Excess struct member 'flags.has_dma_mapping' description in 'drm_gpusvm_pages' No functional change. Assisted-by: Claude:claude-opus-4.6 Cc: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20260501175956.4054088-1-shuicheng.lin@intel.com
2026-05-06drm/xe/cri: Add new PCI IDsBalasubramani Vivekanandan1-1/+5
Add support for new CRI PCI IDs. Bspec: 77979 Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://patch.msgid.link/20260505074855.3813063-2-balasubramani.vivekanandan@intel.com Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
2026-05-06Revert "drm/edid: add CTA Video Format Data Block support"Maarten Lankhorst1-3/+0
This reverts commit e3953ff665742c15c002af9e176bd24d5cd9ec61. Seems to have been accidentally pushed without mandatory review. Signed-off-by: Maarten Lankhorst <dev@lankhorst.se> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> #irc Acked-by: Maxime Ripard <mripard@kernel.org> #irc
2026-05-06Merge tag 'drm-intel-next-2026-05-05' of ↵Dave Airlie5-7/+597
https://gitlab.freedesktop.org/drm/i915/kernel into drm-next - Enable PIPEDMC_ERROR interrupt (Dibin) - Some general display fixes and cleanups (Ville, Nemesa, Suraj, Dibin, Arun, Desnes, Juha-Pekka, Vidya, Julian) - More refactor to split display code (Jani, Ville, Luca) - Panel Replay BW optimization (Animesh) - Integrate the sharpness filter properly into the scaler (Ville) - Watermark/SAGV fixes/cleanups/etc (Ville) - Restructure DP/HDMI sink format handling (Ville) - Eliminate FB usage from low level pinning code (Ville) - Some initial prep patches for always enable AS SDP (Ankit) - Many PSR related fixes (Jouni) - Fix MST VCPI lookup and modeset-lock splat (Suraj) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/afot1cjSpeAjYzg2@intel.com
2026-05-06Merge tag 'drm-misc-next-2026-04-20' of ↵Dave Airlie12-77/+123
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v7.1-rc1: UAPI Changes: - Expose per-client BO memory usage via fdinfo in amdxdna. (Hou) - Change the default priority of drm scheduler to fair. (Tvrtko) Cross-subsystem Changes: - Revert hugetlb support in udmabuf. (Gunthorpe) - Fix error in udmabuf with CONFIG_DMA_API_DEBUG(/ _SG). (Gavrilov) - Add Docbook for DRM_IOCTL_SYNCOBJ_EVENTFD, (Ser) clarify drm_bridge_get/put. (Tvrtko) - Change signature of drm_connector_attach_hdr_output_metadata_property. (Canal) - Use IOVA allocations in gpusvm and pagemap APIs. (Brost) - Fix tracepoints vs dma-fence lifetime. (Tvrtko) - Convert st-dma*.c tests to use kunit. (Gunthorpe) Core Changes: - Deduplicate counter and timestamp retrieval in vblank code. (Ville) - Parse AMD VSDB v3 in CTA extension blocks, and use it in amdgpu. (Chen) - Prevent bridge and encoder chain changes at inopportune times. (Ceresoli) - Map the run queue 1:1 to the drm scheduler. (Tvrtko) Driver Changes: - Assorted bugfixes and (documentation) updates to rockchip, bridge/synopsis, panfrost, tidss, accel/qaic, tilcdc, vc4, ast, imagination, panthor, renesas, accel/amdxdna, msxfb, bridge/imx8mp, nouveau. bridge/analogix_dp, bridge/exynos_dp, omap. - Add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1, panels. - Add support for a lot of waveshare panels (Baryshkov) - Support for AIE4 devices in accel/wamdxdna. (Zhang) - Enable support for GEM shrinking in panthor. (Goel/Brezillon) - Runtime Power Management is added to v3d. (Canal) - Allow panel probing and use the panel bridge helper in analogix_dp. (Ding) - Support XRGB1555 and C8 in mgag and XRGB1555 in ast. (Zimmermann) From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/bf31b1a1-951b-4f60-b226-22e8c083697d@linux.intel.com Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-05-04drm/crc: Fix typo in doc for drm_crtc_crcEduardo Vasconcelos1-1/+1
Fix a typo in the documentation for struct drm_crtc_crc ("occured." -> "occurred"). Signed-off-by: Eduardo Vasconcelos <eduardo@eduardovasconcelos.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20260424183630.3764-1-eduardo@eduardovasconcelos.com
2026-05-04Merge tag 'drm-xe-next-2026-04-30' of ↵Dave Airlie1-0/+11
https://gitlab.freedesktop.org/drm/xe/kernel into drm-next UAPI Changes: - Debugfs multi-LRC engine info (Xin Wang, 2 commits) Expose multi-LRC engine classes in the debugfs engine info output and improve the output readability. - drm/drm_ras: Add clear-error-counter netlink command to drm_ras Cross-subsystem Changes: Core Changes: - drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges - drm/i915/display: switch to including common step file directly Driver Changes: - Engine initialization cleanup (Matt Roper, 10 commits) Clean up engine initialization code inherited from i915 by moving hardware programming (CCS enablement, HWSTAM, GFX_MODE, BLIT_CCTL, STOP_RING) into the RTP infrastructure. This makes the programming visible and verifiable via debugfs, and applies consistently across both normal and execlist init paths. Also fixes the name/definition of GFX_MODE, marks BCS engines as belonging to the GT forcewake domain, and drops the now-unused xe_hw_engine_mmio_write32() helper. - PF fair scheduling auto-provisioning (Michal Wajdeczko, 13 commits) Fix several corner cases in SR-IOV PF scheduling policy provisioning, then auto-provision PF and all VFs with 16ms execution-quantum and preemption-timeout defaults. This prevents a VF from monopolizing the GPU by submitting workloads without gaps, without requiring the user to configure sysfs manually. - System Controller support for CRI/Xe3p (Anoop Vijay + Raag Jadav, 10 commits) Add xe_sysctrl infrastructure for communicating with the System Controller firmware entity on CRI/Xe3p discrete GPU platforms via a mailbox interface. Includes type definitions, register definitions, mailbox communication, initialization, power management, interrupt handling, and event dispatch. Builds on this to add initial RAS correctable error handling, using sysctrl interrupts to receive threshold-crossed events. - PXP state machine fixes (Daniele Ceraolo Spurio, 4 commits) Fix PXP state machine handling: reject PXP sessions on PTL platforms with older GSC firmware that does not support it, fix the restart flag not being cleared after jumping back in pxp_start, remove incorrect handling of an impossible state during suspend, and clean up termination status on failure. - Reset/wedge/unload corner case fixes (Zhanjun Dong + Matthew Brost, 5 commits) Fix memory leaks and fence signal failures that occurred during GPU reset, device wedging, and driver unload by forcefully tearing down remaining exec queues in GuC submit fini, always killing queues in pause/abort, and triggering queue cleanup when not in wedged mode 2. Also ensures GuC CT state transitions via STOP before DISABLED. - Wedge path memory allocation fixes (Matthew Brost, 3 commits) Avoid GFP_KERNEL allocations in xe_device_declare_wedged(), which runs in the DMA-fence signaling path. Also drops the guc_submit_wedged_fini devm registration from xe_guc_submit_wedge() to clean up the wedge shutdown sequence. - PAT type cleanup and invalid index hardening (Xin Wang, 3 commits) Standardize pat_index fields to u16 across the driver, default XE_CACHE_NONE_COMPRESSION to XE_PAT_INVALID_IDX (matching WB_COMPRESSION), and introduce xe_cache_pat_idx() — a macro helper that validates cache_mode bounds and asserts on invalid PAT indices before returning the index. - Reject unsafe PAT indices for CPU cached memory (Jia Yao, 2 commits) Reject incoherent (coh_none) PAT indices for CPU cached memory in both the madvise ioctl and vm_bind with CPU_ADDR_MIRROR flag, closing a security gap where the GPU could bypass CPU caches and observe stale or sensitive data. - OA improvements for CRI device memory (Ashutosh Dixit, 3 commits) Move OA buffer access to the xe_map layer to support both system and device memory (required for CRI), switch OA buffer mmap to use drm_gem_mmap_obj, and implement workaround Wa_14026633728. - xe_drm.h documentation fixes (Shuicheng Lin, 6 commits) Fix multiple documentation issues in the xe_drm.h UAPI header: typos, spelling errors, grammar, wrong names and references, kernel-doc cross-reference syntax, and broken code examples. - kernel-doc syntax fixes in xe headers (Shuicheng Lin, 4 commits) Fix kernel-doc syntax issues across xe header files: missing '@' prefixes on member tags, stale/mismatched member tags, comment syntax errors, and type/parameter name mismatches in references. - Buffer object and DMA-buf resource leak fixes (Shuicheng Lin, 4 commits) Fix resource leaks on error paths: DMA-buf attachment leak in xe_gem_prime_import(), BO leak in xe_dma_buf_init_obj() on allocation failure, and BO leaks in xe_bo_init_locked() on GGTT flag validation and unaligned size validation failures. - Include guard cleanup (Shuicheng Lin, 5 commits) Fix and standardize include guards across xe header files: normalize double-underscore guards to single, add missing leading/trailing underscores, add missing _H suffixes, and add guards to previously unprotected headers. - VF CCS memory pool (Satyanarayana K V P, 2 commits) Switch VF CCS read/write operations from the DRM sub-allocator to DRM mm, fixing allocation failures in fence-disabled mode where the sub-allocator's hole cursor assumption breaks. Also introduces a general BO-backed memory pool with shadow support using drm_mm. - i915/xe step definition unification (Jani Nikula, 3 commits) Complete the migration to the shared intel_step header: switch xe from its own xe_step enum to the shared intel_step naming and definitions, and update i915 display code to include the common step header directly. - Xe3p GT tuning fixes (3 commits) Three Xe3p GT tuning corrections: fix the register offset for GAMSTLB_CTRL, stop applying the CCCHKNREG1 tuning from Xe3p onward (no longer needed), and mark ROW_CHICKEN5 as a masked register. - Forcewake cleanup in GT and GuC PC (Raag Jadav, 3 commits) Drop a redundant forcewake reference in xe_gt, reorder forcewake usage in xe_guc_pc_fini_hw() to avoid a redundant hold, and convert xe_guc_pc_stop() to void since it can no longer fail. - SVM garbage collector fix on close (Matthew Brost, 2 commits) Disable the SVM garbage collector work item when an SVM is closed to prevent use-after-free when the GC fires after the SVM is freed. - Admin-only PF mode (Satyanarayana K V P, 2 commits) Derive an "admin-only PF" mode flag from xe_device state instead of using a local flag, and restrict device query responses when running in admin-only PF mode to avoid exposing internal state. - Enable hwmon energy attributes and accepted power limit for CRI (2 commits) Enable energy consumption hwmon attributes for the CRI platform and add support for reading the accepted (sustained) power limit via hwmon. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com> Link: https://patch.msgid.link/afNSeZJHC3X2m3-N@fedora
2026-05-04drm: Rename struct drm_atomic_state to drm_atomic_commitMaxime Ripard20-230/+230
The KMS framework uses two slightly different definitions for the state concept. For a given object (plane, CRTC, encoder, etc., so drm_$OBJECT_state), the state is the entire state of that object. However, at the device level, drm_atomic_state refers to a state update for a limited number of objects. Thus, drm_atomic_state isn't the entire device state, but only the full state of some objects in that device. This has been an endless source of confusion and thus bugs. We can rename the drm_atomic_state structure to drm_atomic_commit to make it less confusing. This patch was created using: rg -l drm_atomic_state | \ xargs sed -i 's/drm_atomic_state/drm_atomic_commit/g; s/drm_atomic_commit_helper/drm_atomic_state_helper/g' mv drivers/gpu/drm/tests/drm_atomic_state_test.c drivers/gpu/drm/tests/drm_atomic_commit_test.c Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-1-c0e713bfdf25@kernel.org
2026-05-01Merge tag 'amd-drm-fixes-7.1-2026-04-30' of ↵Dave Airlie1-0/+6
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-7.1-2026-04-30: amdgpu: - GFX12 fix for CONFIG_DRM_DEBUG_MM configs - Fix DC analog support - Userq fixes - GART placement fix - Aldebaran SMU fixes - AMDGPU_INFO_READ_MMR_REG fix - UVD 3.1 fix - GC 6 TCC fix - Fix root reservation in amdgpu_vm_handle_fault() - RAS fix - Module reload fix for APUs - Fix build for CONFIG_DRM_FBDEV_EMULATION=n - IGT DWB regression fix - GC 11.5.4 fix - VCN user fence fixes - JPEG user fence fixes - SMU 13.0.6 fix - VCN 3/4 IB parser fixes - NV3x+ dGPU vblank fix - DCE6/8 fixes for LVDS/eDP panels without an EDID amdkfd: - Fix for when CONFIG_HSA_AMD is not set - SVM fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20260430135619.3929877-1-alexander.deucher@amd.com
2026-04-28drm/amdgpu: fix build for CONFIG_DRM_FBDEV_EMULATION=nYury Norov1-0/+6
The merge-commit 02e778f12359 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next") removes the stub for drm_fb_helper_gem_is_fb(), so the buld gets broken if DRM_FBDEV_EMULATION is not set. ‘drm_fb_helper_gem_is_fb’; did you mean ‘drm_fb_helper_from_client’? [-Wimplicit-function-declaration] 1777 | if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) { | ^~~~~~~~~~~~~~~~~~~~~~~ | drm_fb_helper_from_client Restore it. Fixes: 02e778f12359 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next") Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Yury Norov <ynorov@nvidia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 7b81bc38e92c2522484c42671401eaa023ae8831)
2026-04-27Merge drm/drm-next into drm-misc-nextThomas Zimmermann2-10/+44
Getting fixes and updates from v7.1-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-04-26drm/edid: add CTA Video Format Data Block supportHamza Mahfooz1-0/+3
Video Format Data Blocks (VFDBs) contain the necessary information that needs to be fed to the Optimized Video Timings (OVT) Algorithm. Also, we require OVT support to cover modes that aren't supported by earlier standards (e.g. CVT). So, parse all of the relevant VFDB data and feed it to the OVT Algorithm, to extract all of the missing OVT modes. Suggested-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Hamza Mahfooz <someguy@effective-light.com> Link: https://patch.msgid.link/20260225175709.408010-1-someguy@effective-light.com
2026-04-24Merge tag 'char-misc-7.1-rc1' of ↵Linus Torvalds1-9/+42
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc / IIO / and others driver updates from Greg KH: "Here is the char/misc/iio and other smaller driver subsystem updates for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the different drivers they touch. Major points in here is: - the usual large set of new IIO drivers and updates for that subsystem (the large majority of this diffstat) - lots of comedi driver updates and bugfixes - coresight driver updates - interconnect driver updates and additions - mei driver updates - binder (both rust and C versions) updates and fixes - lots of other smaller driver subsystem updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits) coresight: tpdm: fix invalid MMIO access issue mei: me: add nova lake point H DID mei: lb: add late binding version 2 mei: bus: add mei_cldev_uuid w1: ds2490: drop redundant device reference bus: mhi: host: pci_generic: Add Telit FE912C04 modem support mei: csc: wake device while reading firmware status mei: csc: support controller with separate PCI device mei: convert PCI error to common errno mei: trace: print return value of pci_cfg_read mei: me: move trace into firmware status read mei: fix idle print specifiers mei: me: use PCI_DEVICE_DATA macro sonypi: Convert ACPI driver to a platform one misc: apds990x: fix all kernel-doc warnings most: usb: Use kzalloc_objs for endpoint address array hpet: Convert ACPI driver to a platform one misc: vmw_vmci: Fix spelling mistakes in comments parport: Remove completed item from to-do list char: remove unnecessary module_init/exit functions ...
2026-04-24Merge tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds1-1/+2
Pull more drm fixes from Dave Airlie: "These are the regular fixes that have built up over last couple of weeks, all pretty minor and spread all over. atomic: - raise the vblank timeout to avoid it on virtual drivers - fix colorop duplication bridge: - stm_lvds: state check fix - dw-mipi-dsi: bridge reference leak fix panel: - visionx-rm69299: init fix dma-fence: - fix sparse warning dma-buf: - UAF fix panthor: - mapping fix arcgpu: - device_node reference leak fix nouveau: - memory leak in error path fix - overflow in reloc path for old hw fix hv: - Kconfig fix v3d: - infinite loop fix" * tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check MAINTAINERS: split hisilicon maintenance and add Yongbang Shi for hibmc-drm matainers drm/v3d: Reject empty multisync extension to prevent infinite loop drm/panel: visionox-rm69299: Make use of prepare_prev_first drm/drm_atomic: duplicate colorop states if plane color pipeline in use drm/nouveau: fix nvkm_device leak on aperture removal failure hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS dma-fence: Silence sparse warning in dma_fence_describe drm/bridge: dw-mipi-dsi: Fix bridge leak when host attach fails drm/arcpgu: fix device node leak drm/panthor: Fix outdated function documentation drm/panthor: Extend VM locked region for remap case to be a superset dma-buf: fix UAF in dma_buf_put() tracepoint drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector drm/atomic: Increase timeout in drm_atomic_helper_wait_for_vblanks()
2026-04-24drm/mipi-dsi: add mipi_dsi_shutdown_peripheral_multiAvinal Kumar1-0/+1
Add mipi_dsi_shutdown_peripheral_multi function and mark mipi_dsi_shutdown_peripheral function as deprecated. Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patch.msgid.link/20260417061842.66631-2-avinal.xlvii@gmail.com
2026-04-24drm/drm_ras: Add clear-error-counter netlink command to drm_rasRiana Tauro1-0/+11
Introduce a new 'clear-error-counter' drm_ras command to reset the counter value for a specific error counter of a given node. The command is a 'do' netlink request with 'node-id' and 'error-id' as parameters with no response payload. Usage: $ sudo ynl --family drm_ras --do clear-error-counter --json \ '{"node-id":1, "error-id":1}' None Cc: Jakub Kicinski <kuba@kernel.org> Cc: Zack McKevitt <zachary.mckevitt@oss.qualcomm.com> Cc: Lijo Lazar <lijo.lazar@amd.com> Cc: Hawking Zhang <Hawking.Zhang@amd.com> Cc: David S. Miller <davem@davemloft.net> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Riana Tauro <riana.tauro@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Raag Jadav <raag.jadav@intel.com> Link: https://patch.msgid.link/20260409073318.2909379-5-riana.tauro@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Maxime Ripard <mripard@redhat.com>
2026-04-24Merge tag 'drm-misc-fixes-2026-04-23' of ↵Dave Airlie1-1/+2
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes This week in drm-misc-fixes, we have: - A patch to raise the vblank timeout to avoid it on virtual drivers - a state check fix for stm_lvds - a use-after-free fix for dma-buf - a mapping fix for panthor - a device_node reference leak fix for arcgpu - a bridge reference leak fix for dw-mipi-dsi - a sparse warning fix for dma-fence - a kconfig fix for hv - a memory leak fix for nouveau - a fix to duplicate colorop when duplicating states - a panel initialisation order fix for visionox-rm69299 - a fix to prevent an infinite loop for v3d - an overflow fix for nouveau Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20260423-realistic-eager-reindeer-4dacf7@houat
2026-04-18drm/panel: add devm_drm_panel_add() helperDmitry Baryshkov1-0/+1
Add devm_drm_panel_add(), devres-managed version of drm_panel_add(). It's not uncommon for the panel drivers to use devres functions for most of the resources. Provide corresponding replacement for drm_panel_add(). Reviewed-by: Linus Walleij <linusw@kernel.org> Link: https://patch.msgid.link/20260413-waveshare-dsi-touch-v3-18-3aeb53022c32@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2026-04-18drm/of: add helper to count data-lanes on a remote endpointDmitry Baryshkov1-0/+13
If the DSI panel supports versatile lanes configuration, its driver might require determining the number of DSI data lanes, which is usually specified on the DSI host side of the OF graph. Add new helper as a pair to drm_of_get_data_lanes_count_ep() that lets callers determine number of data-lanes on the remote side of the OF graph. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patch.msgid.link/20260413-waveshare-dsi-touch-v3-6-3aeb53022c32@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2026-04-17drm/sched: Remove drm_sched_init_args->num_rqsTvrtko Ursulin1-3/+0
Remove member no longer used by the scheduler core and the drivers. 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> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-30-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Embed run queue singleton into the schedulerTvrtko Ursulin1-4/+1
Now that the run queue to scheduler relationship is always 1:1 we can embed it (the run queue) directly in the scheduler struct and save on some allocation error handling code and such. 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> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-15-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Remove FIFO and RR and simplify to a single run queueTvrtko Ursulin1-32/+4
Since the new FAIR policy is in general better than FIFO and almost as good as round-robin in interactive use cases, plus the latter has not been the default policy in a long time, we can afford to remove both and leave just FAIR. By doing so we can simplify the scheduler code by making the scheduler to run queue relationship always 1:1 and remove some code. Also, now that the FIFO policy is gone the tree of entities is not a FIFO tree any more so rename it to just the tree. 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> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-14-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Favour interactive clients slightlyTvrtko Ursulin1-0/+5
GPUs do not always implement preemption and DRM scheduler definitely does not support it at the front end scheduling level. This means execution quanta can be quite long and is controlled by userspace, consequence of which is picking the "wrong" entity to run can have a larger negative effect than it would have with a virtual runtime based CPU scheduler. Another important consideration is that rendering clients often have shallow submission queues, meaning they will be entering and exiting the scheduler's runnable queue often. Relevant scenario here is what happens when an entity re-joins the runnable queue with other entities already present. One cornerstone of the virtual runtime algorithm is to let it re-join at the head and rely on the virtual runtime accounting and timeslicing to sort it out. However, as explained above, this may not work perfectly in the GPU world. Entity could always get to overtake the existing entities, or not, depending on the submission order and rbtree equal key insertion behaviour. Allow interactive jobs to overtake entities already queued up for the limited case when interactive entity is re-joining the queue after being idle. This gives more opportunity for the compositors to have their rendering executed before the GPU hogs even if they have been configured with the same scheduling priority. To classify a client as interactive we look at its average job duration versus the average for the whole scheduler. We can track this easily by plugging into the existing job runtime tracking and applying the exponential moving average window on the past submissions. Then, all other things being equal, we let the more interactive jobs go first. 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> Cc: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-12-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Add fair scheduling policyTvrtko Ursulin1-3/+14
The FAIR scheduling policy is built upon the same concepts as the well known CFS CPU scheduler - entity run queue is sorted by the virtual GPU time consumed by entities in a way that the entity with least vruntime runs first. It is able to avoid total priority starvation, which is one of the problems with FIFO, and it also does not need for per priority run queues. As it scales the actual GPU runtime by an exponential factor as the priority decreases, the virtual runtime for low priority entities grows faster than for normal priority, pushing them further down the runqueue order for the same real GPU time spent. Apart from this fundamental fairness, fair policy is especially strong in oversubscription workloads where it is able to give more GPU time to short and bursty workloads when they are running in parallel with GPU heavy clients submitting deep job queues. 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> Cc: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-11-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Account entity GPU timeTvrtko Ursulin1-0/+12
To implement fair scheduling we need a view into the GPU time consumed by entities. Problem we have is that jobs and entities objects have decoupled lifetimes, where at the point we have a view into accurate GPU time, we cannot link back to the entity any longer. Solve this by adding a light weight entity stats object which is reference counted by both entity and the job and hence can safely be used from either side. With that, the only other thing we need is to add a helper for adding the job's GPU time into the respective entity stats object, and call it once the accurate GPU time has been calculated. The most convenient place to do that is the free job worker for several reasons. Doing the accounting from the job completion callback would mean a few locks would need to become irq safe and we would also need to worry about out of order completions (via dma_fence_is_signaled calls which we cannot control). In-order completions are critical for GPU time accuracy which is currently adjusted per fence in the free worker and requires looking at the next job in the scheduler pending list. We would also need to add a new lock to protect the scheduler average stats update. In contrast to those complications, having the accounting done from the free worker is serialized by definition and all the above complications are avoided. Downside is there is potential for a time lag between job completions and GPU time being accounted against the entity. Since that is partly alleviated by batch processing the completed job queue, and the scheduling algorithm does not attempt to be completely fair, which would even be rather impossible to achieve in the GPU world with the current DRM scheduler design and hardware with no or poor preemption support, this downside is not considered critical. Plus, in practice the scheduler is also affected by worker scheduling delays from other angles too. Not least being able to promptly feed the GPU with new work. We therefore choose the simple option and can later consider improving upon it if the need arises. 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> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-9-tvrtko.ursulin@igalia.com
2026-04-17drm/sched: Implement RR via FIFOTvrtko Ursulin1-4/+12
Round-robin being the non-default policy and unclear how much it is used, we can notice that it can be implemented using the FIFO data structures if we only invent a fake submit timestamp which is monotonically increasing inside drm_sched_rq instances. So instead of remembering which was the last entity the scheduler worker picked we can simply bump the picked one to the bottom of the tree, which ensures round-robin behaviour between all active queued jobs. If the picked job was the last from a given entity, we remember the assigned fake timestamp and use it to re-insert the job once it re-joins the queue. This ensures the job neither overtakes all already queued jobs, neither it goes last. Instead it keeps the position after the currently queued jobs and before the ones which haven't yet been queued at the point the entity left the queue. Advantage is that we can consolidate to a single code path and remove a bunch of code. Downside is round-robin mode now needs to lock on the job pop path but that should not have a measurable performance impact. 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> Tested-by: Vitaly Prosyak <vitaly.prosyak@amd.com> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260417103744.76020-7-tvrtko.ursulin@igalia.com
2026-04-16drm/sched: Make drm_sched_entity_kill() a public functionPhilipp Stanner1-0/+1
Some drivers do not care on teardown whether the last jobs pending in an entity are actually executed before teardown completed. For such scenarios, drm_sched_entity_flush() is not the ideal function since it's intended to wait for jobs to complete. Make drm_sched_entity_kill() public for that use-case and update the documentation. Suggested-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20260415144956.272506-2-phasta@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-04-16drm/drm_atomic: duplicate colorop states if plane color pipeline in useMelissa Wen1-1/+2
For suspend/resume to work correctly, do for colorop state the same we do for plane/crtc/connector states: duplicate the state of colorops in a color pipeline if it's in use by a given plane when suspending and restore cached colorop states when resuming. While at it, prevent unused-variable warning when using for_each_new_colorop_in_stage here. Fixes: 2afc3184f3b3 ("drm/plane: Add COLOR PIPELINE property") Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Signed-off-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260318163629.300627-1-mwen@igalia.com Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
2026-04-16drm/bridge: lock the encoder chain in scoped for_each loopsLuca Ceresoli1-26/+47
drm_for_each_bridge_in_chain_scoped() and drm_for_each_bridge_in_chain_from() currently get/put the bridge at each iteration. But they don't protect the encoder chain, so it could change (bridges added/removed) while some code is iterating over the list itself. Such code can then derail on incorrect pointers. To make iterations safe, augment these for_each macros to lock the encoder chain mutex at the beginning and unlock it at the end of the loop (be it at the end of the list, or earlier due to a 'break' or 'return' statement). This change requires more operations when starting and ending the loop. To avoid making the macros even more complex, move these operations to helper functions. Also remname some of the existing helper functions for consistency. Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Link: https://patch.msgid.link/20260324-drm-bridge-alloc-encoder-chain-mutex-v5-4-8bf786c5c7e6@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-16drm/encoder: add mutex to protect the bridge chainLuca Ceresoli1-0/+4
The per-encoder bridge chain is currently assumed to be static once it is fully initialized. Work is in progress to add hot-pluggable bridges, breaking that assumption. With bridge removal, the encoder chain can change without notice, removing tail bridges. This can be problematic while iterating over the chain. Add a mutex to be taken whenever looping or changing the encoder chain. Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Link: https://patch.msgid.link/20260324-drm-bridge-alloc-encoder-chain-mutex-v5-1-8bf786c5c7e6@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-16Merge tag 'amd-drm-next-7.1-2026-04-03' of ↵Dave Airlie1-0/+38
https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-7.1-2026-04-03: amdgpu: - Audio regression fix - Use drm edid parser for AMD VSDB - Misc cleanups - VCE cs parse fixes - VCN cs parse fixes - RAS fixes - Clean up and unify vram reservation handling - GPU Partition updates - system_wq cleanups - Add CONFIG_GCOV_PROFILE_AMDGPU kconfig option - SMU vram copy updates - SMU 15 fixes - SMU 13 fixes - SMU 14 fixes - UserQ fixes - Replace pasid idr with an xarray - Dither handling fix - Enable amdgpu by default for CIK APUs - Add IBs to devcoredump amdkfd: - system_wq cleanups radeon: - system_wq cleanups drm: - Add support for AMD VSDB parsing to drm_edid Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20260403214329.2976329-1-alexander.deucher@amd.com
2026-04-15drm/i915: Remove the vma parent interfaceVille Syrjälä1-7/+0
With the fb pinning stuff directly returning the fence_id there is no longer any need for the vma parent interface. Get rid of it. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260407170942.16515-2-ville.syrjala@linux.intel.com
2026-04-15drm/i915: Move initial plane vblank wait into display codeVille Syrjälä1-2/+0
The initial plane vblank wait operates on display registers, so it really belongs in the display code proper. Move it there. We can use intel_parent_irq_enabled() to determine if we can rely on interrupts or not. On average we should end up waiting half a frame here, so the polling interval can be fairly long. 1 ms (which actually makes poll_timeout_us() use ~250-1000 usec) seems good enough to me. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20260410150449.9699-6-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>