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34 hoursMerge branch 'for-linux-next' of ↵Mark Brown
https://gitlab.freedesktop.org/drm/misc/kernel.git
34 hoursMerge branch 'drm-next' of https://gitlab.freedesktop.org/drm/kernel.gitMark Brown
3 daysdrm/vc4: Set DRM DMA device directly from HVS and V3DDaniel Drake
vc4 uses of_dma_configure() during bind to set the DMA configuration of the drm device by borrowing the configuration of one of its component devices. This violates driver model expectations that IOMMU probing and domain attachment occur before driver binding - see commit bcb81ac6ae3c ("iommu: Get DT/ACPI parsing into the proper probe path"). With the introduction of the bcm2712-iommu driver behind the vc4 hvs device, a warning is triggered: vc4-drm gpu: late IOMMU probe at driver bind, something fishy here! Instead of configuring the virtual aggregate device, adopt the pattern used by sun4i/sun8i/exynos where candidate DMA-capable hardware components register themselves as the device to use for DRM allocations via drm_dev_set_dma_dev(), provided a DMA device has not already been assigned. HVS will typically bind first and claim the DMA device. The gen6 36-bit DMA mask configuration was moved into vc4_hvs_bind() accordingly. For older generations, vc4's v3d component continues to be available as a fallback, and the default platform bus 32-bit DMA mask is retained. Fixes: da8e393e23ef ("drm/vc4: drv: Adopt the dma configuration from the HVS or V3D component") Signed-off-by: Daniel Drake <dan@reactivated.net> Link: https://patch.msgid.link/20261004-drm-dma-device-2-v3-1-45b121ab819f@reactivated.net Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
8 daysdrm/vc4: Use kvmalloc_objs() for the BO cache size listMaíra Canal
The BO cache size list has one entry per BO page count, so its size scales with the largest BO ever freed. A 64 MiB BO already needs at least an order-6 allocation, which fails under fragmentation and triggers a warn_alloc() splat on BO close: page allocation failure: order:7, mode:0x40cc0(GFP_KERNEL|__GFP_COMP) Call trace: ... warn_alloc+0x118/0x190 __alloc_pages_slowpath+0x4a8/0x520 ... __kmalloc_noprof+0x3ac/0x5d8 vc4_free_object+0x128/0x370 [vc4] drm_gem_object_handle_put_unlocked+0xb8/0x158 [drm] drm_gem_object_release_handle+0x74/0xe8 [drm] drm_gem_handle_delete+0x6c/0xa8 [drm] drm_gem_close_ioctl+0x34/0x50 [drm] The list doesn't need physically contiguous memory. Use kvmalloc_objs() so large lists can fall back to vmalloc(), avoiding the allocation failure. Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.") Reviewed-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Link: https://patch.msgid.link/20260930190721.1897264-2-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
8 daysdrm/vc4: Free the BO cache size list on teardownMaíra Canal
vc4_bo_cache_destroy() purges the cached BOs but never frees the size list, leaking it on every unbind. Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.") Assisted-by: LLM Reviewed-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Link: https://patch.msgid.link/20260930190721.1897264-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
9 daysdrm/vc4: Use drm_timeout_rel_to_jiffies()Maíra Canal
vc4_wait_bo_ioctl() converts its timeout with usecs_to_jiffies(), which takes an unsigned int. The microsecond value derived from the u64 timeout_ns is narrowed to fit, so any timeout above UINT_MAX microseconds, around ~71 minutes, wraps into a much shorter one. Unlike the equivalent problem in the other drivers, this one is not limited to 32-bit. Use the shared helper, which takes the duration in ns and clamps the result to MAX_JIFFY_OFFSET. Fixes: 21bd85f82ec2 ("drm/vc4: Use DMA Resv to implement VC4 wait BO IOCTL") Acked-by: Christian König <christian.koenig@amd.com> Link: https://patch.msgid.link/20260915-drm-timeout-helpers-v3-6-f2ae987d861f@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
13 daysdrm/vc4: Fix firmware reference leak in vc4_drm_bind()Wentao Liang
The firmware reference obtained via rpi_firmware_get() is leaked when aperture_remove_all_conflicting_devices() fails, as the error label returns without putting it. This happens before the firmware is consumed and put further down in the function. Put the firmware reference before jumping to err. Fixes: c406ad5e4a85 ("drm/vc4: Notify the firmware when DRM is in charge") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang <vulab@iscas.ac.cn> Link: https://patch.msgid.link/20260916154015.2056797-1-vulab@iscas.ac.cn Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-09-25drm/vc4: drain the hangcheck timer and works on V3D unbindFan Wu
Nothing stops the hangcheck timer that submitted jobs arm, or the job_done_work that the render-done interrupt queues, at teardown: vc4_irq_disable() cancels only overflow_mem_work, and vc4_gem_destroy() runs from the drm-managed release, after vc4_v3d_unbind() has already uninstalled the V3D interrupt and cleared vc4->v3d. A timer still armed by then reads V3D registers through the NULL vc4->v3d pointer, and the late callbacks run on the vc4_dev embedding them after it has been freed. Drain them in vc4_v3d_unbind(): shut the timer down and cancel reset_work before the interrupt is taken down, because its vc4_irq_reset() re-enables it, then flush job_done_work so that completions queued at teardown still release their jobs. This issue was found by an in-house static analysis tool. Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") Cc: stable@vger.kernel.org # 6.2+ Assisted-by: Codex:gpt-5.6 Co-developed-by: Song Li <songl@zju.edu.cn> Signed-off-by: Song Li <songl@zju.edu.cn> Signed-off-by: Fan Wu <fanwu01@zju.edu.cn> Link: https://patch.msgid.link/20260915095103.156007-1-fanwu01@zju.edu.cn Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-09-22Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging drm/drm-next into drm-misc-next to get fixes from v7.3-rc4. Required for commit 2ab510e63197 ("drm/sched: Fix virtual runtime race"). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-09-22Backmerge tag 'v7.3-rc4' into drm-nextDave Airlie
Linux 7.3-rc4 Requested by Philipp Stanner for 2ab510e63197360945f915dd5631a77c63ac6b27 would be needed as a groundlayer for further patches that extend the locking in drm_sched Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-09-19drm/display: hdmi-state-helper: Pass acquire ctx to hotplug helpersCristian Ciocaltea
In preparation for supporting SCDC status synchronization on hotplug events, extend drm_atomic_helper_connector_hdmi_hotplug() and drm_atomic_helper_connector_hdmi_update() to take a struct drm_modeset_acquire_ctx argument. This will be used when a CRTC reset is required. Additionally, change their return type from void to int to allow propagation of errors such as -EDEADLK caused by lock contention. Update existing callers accordingly. Note that in the VC4 case, the return code is ignored, as it cannot fail: being in the .detect_ctx() call path, the connection mutex is already held through ctx, and it bails out early because the driver relies on a local SCDC state-management implementation, and therefore does not yet expose the scrambler capability through the common helpers. Tested-by: Diederik de Haas <diederik@cknow-tech.com> # NanoPC-T6 LTS, Rock 5B Reviewed-by: Maxime Ripard <mripard@kernel.org> Tested-by: Igor Paunovic <royalnet026@gmail.com> # RK3588 Orange Pi 5 Plus, dual HDMI Tested-by: Robin Räber <robin.raebi@gmail.com> Link: https://patch.msgid.link/20260901-dw-hdmi-qp-scramb-v11-21-bc12954a0688@collabora.com Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
2026-09-19drm/display: hdmi: Rename drmm_connector_hdmi_init() to *_ini2()Cristian Ciocaltea
In preparation for changing the signature of drmm_connector_hdmi_init(), i.e. dropping the vendor, product, supported_formats and max_bpc arguments, which are being moved into struct drm_connector_hdmi_funcs, temporarily rename the helper to drmm_connector_hdmi_ini2(). This lets the new signature be introduced under the original name while callers are converted incrementally. The final patch removes *_ini2() once no callers remain. This is a mechanical, same-length rename performed with sed: $ git grep -l 'drmm_connector_hdmi_init' -- '*.[ch]' \ | xargs sed -i 's/drmm_connector_hdmi_init/drmm_connector_hdmi_ini2/g' The transitional name matches the original's length so continuation-line arguments stay aligned to the opening parenthesis, keeping the diff to the identifier itself and avoiding re-alignment churn here and in the later conversions. No functional change intended. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Tested-by: Diederik de Haas <diederik@cknow-tech.com> # NanoPC-T6 LTS, Rock 5B Tested-by: Igor Paunovic <royalnet026@gmail.com> # RK3588 Orange Pi 5 Plus, dual HDMI Tested-by: Robin Räber <robin.raebi@gmail.com> Link: https://patch.msgid.link/20260901-dw-hdmi-qp-scramb-v11-3-bc12954a0688@collabora.com Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
2026-09-18drm/vc4: Use the reset controller to recover from a GPU hangMaíra Canal
vc4_reset() recovers a hung GPU by dropping the runtime PM usage count to zero so that the power domain goes down, and then taking it again. Such an unconventional approach only works if the driver knows exactly how many references it holds, which is why vc4 wrapped every pm_runtime_get_sync() call in a private refcount and mutex. Commit 670c672608a1 ("soc: bcm: bcm2835-pm: Add support for power domains under a new binding.") exposed a V3D reset line for exactly this reason, so that the block can be reset without power-cycling its domain, but the vc4 driver never picked it up. Use it now, which removes the need for the private refcount and leaves vc4_v3d_pm_get/put() as plain runtime PM wrappers. The reset line is optional, to accommodate older device trees. Device trees that do not describe one still get the driver-side recovery in vc4_irq_reset(), but the hardware is left untouched. Two in-tree platforms use the VC4 V3D block: BCM2835 gains the resets property in the next commit, and Cygnus is no worse off than it was, as its V3D node has no power domain and the power-cycle only ever gated its clock. Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20260915-vc4-reset-control-v2-3-cb3a25b07822@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-09-18drm/vc4: Drop the undocumented brcm,vc4-v3d compatibleMaíra Canal
"brcm,vc4-v3d" is the compatible string V3D support originally shipped with in commit d3f5168a0810 ("drm/vc4: Bind and initialize the V3D engine."). Commit 90d7116061f8 ("drm/vc4: Recognize a more specific compatible string for V3D.") added "brcm,bcm2835-v3d" in v4.6 and kept the original one around, because the Raspberry Pi firmware was shipping device trees that used it. That string was never part of the binding: the documentation added in commit 4653f22e9ab0 ("dt-bindings: Add binding docs for V3D.") describes only "brcm,bcm2835-v3d", and no upstream device tree has ever used "brcm,vc4-v3d": the first in-tree V3D node, from commit 49ac67e0c39c ("ARM: bcm2835: Add VC4 to the device tree."), already carried the specific name. The firmware device trees the compatible was kept for predate v4.6, released in 2016. Drop it from both match tables. Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260915-vc4-reset-control-v2-1-cb3a25b07822@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-09-14drm/vc4: Use managed KMS polling to fix UAF on unbindKarl Mehltretter
vc4_kms_load() calls drm_kms_helper_poll_init() but the driver provides no matching drm_kms_helper_poll_fini(). The output poll work stays scheduled after unbind and runs on the freed drm_device: # modprobe vc4; rmmod vc4; sleep 10 BUG: KASAN: slab-use-after-free in delayed_work_timer_fn BUG: KASAN: slab-use-after-free in drm_client_dev_hotplug [drm] Workqueue: events output_poll_execute [drm_kms_helper] Allocated by task 171: __devm_drm_dev_alloc Freed by task 262 (rmmod): drm_dev_put / component_del Use drmm_kms_helper_poll_init() so polling is finalized with the device, as other drivers do. Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.") Assisted-by: Claude:claude-fable-5 Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com> Link: https://patch.msgid.link/20260822143110.68594-1-kmehltretter@gmail.com Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-08-31drm/vc4: Convert to atomic_create_stateMaxime Ripard
The vc4 crtc implementation provides a custom reset hook. However, this hook only allocates the state, initializes it with __drm_atomic_helper_crtc_reset(), sets the assigned_channel field to VC4_HVS_CHANNEL_DISABLED, and frees the previous state. It does not perform any hardware reset. Since this is exactly what the atomic_create_state hook is meant to do, minus the old state cleanup which the caller handles, convert the implementation to use atomic_create_state with __drm_atomic_helper_crtc_state_init() instead. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-66-fb793475c05a@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-08-31Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Getting drm-misc-next up to v7.3-rc1. In exynos, there was a conflict in exynos_dbi_bind(). The merge resolves it to the state of commit 3cc8eee9f346 ("drm/exynos: remove dependency on DRM simple helpers"). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-08-21drm/vc4: Convert to atomic_create_stateMaxime Ripard
The plane reset implementation creates a custom state subclass, but only initializes a pristine state without resetting any hardware. This is equivalent to what atomic_create_state expects. Convert to it. The conversion was done using the following Coccinelle semantic patch: @@ identifier funcs; symbol drm_atomic_helper_plane_reset; symbol drm_atomic_helper_plane_create_state; @@ struct drm_plane_funcs funcs = { ..., - .reset = drm_atomic_helper_plane_reset, + .atomic_create_state = drm_atomic_helper_plane_create_state, ..., }; @match_struct_reset@ identifier funcs, reset_func; @@ struct drm_plane_funcs funcs = { ..., .reset = reset_func, ..., }; @reset_uses_helpers depends on match_struct_reset@ identifier match_struct_reset.reset_func; @@ void reset_func(...) { <+... ( __drm_atomic_helper_plane_reset(...); | __drm_gem_reset_shadow_plane(...); ) ...+> } @match_struct_destroy@ identifier funcs, destroy_func; @@ struct drm_plane_funcs funcs = { ..., .atomic_destroy_state = destroy_func, ..., }; @script:python renamed_func@ old_name << match_struct_reset.reset_func; new_name; @@ if old_name.endswith("_reset"): coccinelle.new_name = old_name.replace("_reset", "_create_state") else: coccinelle.new_name = old_name @update_struct depends on match_struct_reset && reset_uses_helpers@ identifier match_struct_reset.funcs, match_struct_reset.reset_func; identifier renamed_func.new_name; @@ struct drm_plane_funcs funcs = { ..., - .reset = reset_func, + .atomic_create_state = new_name, ..., }; @drop_destroy depends on update_struct && match_struct_destroy@ identifier match_struct_reset.reset_func; identifier match_struct_destroy.destroy_func; identifier container_func; identifier P; symbol drm_atomic_helper_plane_destroy_state; symbol __drm_atomic_helper_plane_destroy_state; @@ void reset_func(struct drm_plane *P) { ... ( - if (P->state) { - <+... ( - drm_atomic_helper_plane_destroy_state(P, P->state); | - __drm_atomic_helper_plane_destroy_state(P->state); | - P->funcs->atomic_destroy_state(P, P->state); | - destroy_func(P, P->state); ) - ...+> - } | - drm_WARN_ON_ONCE(P->dev, P->state); | - WARN_ON(P->state); ) ... ( - kfree(P->state); | - kfree(container_func(P->state)); | // kfree is optional ) ( - P->state = NULL; | // plane->state clearing is optional ) ... } @drop_destroy_mtk depends on update_struct@ identifier P; symbol __drm_atomic_helper_plane_destroy_state; symbol to_mtk_plane_state; @@ void mtk_plane_reset(struct drm_plane *P) { ... - if (P->state) { - __drm_atomic_helper_plane_destroy_state(P->state); - ... - } else { ... - } ... } @transform_nv50_wndw depends on update_struct@ identifier S; @@ void nv50_wndw_reset(...) { ... - if (WARN_ON(!(S = kzalloc_obj(*S)))) + S = kzalloc_obj(*S); + if (WARN_ON(!S)) return; ... } @transform_kzalloc depends on update_struct@ identifier match_struct_reset.reset_func; identifier P, S; statement ST; statement list STL; @@ void reset_func(struct drm_plane *P) { <... S = kzalloc_obj(*S); ( - if (S) - { - STL - } + if (!S) return; + + STL | - if (S) ST + if (!S) return; + + ST ) ...> } @transform_body depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier S, P; expression PS; @@ - void reset_func(struct drm_plane *P) + struct drm_plane_state *new_name(struct drm_plane *P) { ... S = kzalloc_obj(*S); ... ( if (!S) { ... - return; + return ERR_PTR(-ENOMEM); } | if (WARN_ON(!S)) { ... - return; + return ERR_PTR(-ENOMEM); } | if (S == NULL) { ... - return; + return ERR_PTR(-ENOMEM); } ) ... ( - __drm_atomic_helper_plane_reset(P, PS); + __drm_atomic_helper_plane_state_init(PS, P); | - __drm_gem_reset_shadow_plane(P, PS); + __drm_gem_shadow_plane_state_init(P, PS); ) ... } @update_early_return depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { <+... - return; + return ERR_PTR(-EINVAL); ...+> } @update_return_plane depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { ... __drm_atomic_helper_plane_state_init(PS, P); ... + + return PS; } @update_return_shadow depends on update_struct@ identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { ... __drm_gem_shadow_plane_state_init(P, PS); ... + + return &PS->base; } Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://patch.msgid.link/20260814-drm-no-more-plane-reset-v2-57-82d2963dd134@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-08-20BackMerge tag 'v7.2' into drm-nextDave Airlie
Linux 7.2 There was a lot of conflicts this round between fixes and next, and I'd like to get the merge resolutions that we have in drm-tip. Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-08-13drm/debugfs: Move HDMI debugfs registration to state helperNicolas Frattaroli
The HDMI debugfs files are only useful for connectors that already make use of the HDMI state helpers. In addition, relying on HDMI-specific functions in drm_debugfs.c can lead to circular linking problems later down the line. Move hdmi_debugfs_add() and friends to a new helper in drm_hdmi_state_helper.c, and make all current users (vc4, sun4i, bridge) either use it as a debugfs_init func, or call it directly in its debugfs_init func. Suggested-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Tested-by: Hans Verkuil <hverkuil+cisco@kernel.org> Link: https://patch.msgid.link/20260724-scdc-link-health-v9-4-bdda406d016d@collabora.com Signed-off-by: Daniel Stone <daniels@collabora.com>
2026-07-28drm/vc4: Zero the tile state data array before each BIN jobMaíra Canal
The binner BO is a single 16MB buffer split into 512KB slots that are handed out to jobs at submission time and recycled as jobs complete, without ever being cleared. Each slot holds the job's Tile State Data Array (TSDA) at its start, followed by the tile allocation pool. While the tile allocation pool is only walked by the render thread through branches the binner generated during the current job, the TSDA is the PTB's own per-tile bookkeeping and is consumed by the hardware itself. Although the kernel sets the "Auto-initialise Tile State Data Array" flag in the tile binning mode configuration, the PTB demonstrably still acts on stale tile state left by the slot's previous user: the binner ends up creating invalid command streams with invalid primitive streams and branches, which can cause GPU hangs as observed in [1][2]. Zero the TSDA when the job's binning slot is configured. This clears 48 bytes per tile (~24KB for a 1080p frame) in the submission path, and guarantees the PTB never sees another job's tile state. The tile count is only checked for being non-zero today, so the 8-bit fields it comes from can describe a tile state array almost six times larger than the slot it has to live in. Bound it before the slot is handed out, since such size decides how much of the slot is left for the tile alloc pool. Link: https://github.com/raspberrypi/linux/issues/3221 [1] Link: https://github.com/raspberrypi/linux/issues/5780 [2] Fixes: 553c942f8b2c ("drm/vc4: Allow using more than 256MB of CMA memory.") Cc: stable@vger.kernel.org Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> Link: https://patch.msgid.link/20260727-vc4-bin-oom-fixes-v2-2-0d8a5eddc7c9@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-28drm/vc4: Supply the overflow slot size in BPOS, not the whole bin BO sizeJose Maria Casanova Crespo
vc4_overflow_mem_work() points BPOA at a 512KB slot inside the 16MB binner BO, but writes the size of the whole BO to BPOS. On every binner out-of-memory event the PTB is therefore authorized to write tile lists across all the other slots (which may hold the tile state, tile alloc and overflow memory of in-flight jobs) and, for any slot but the first, past the end of the binner BO into unrelated CMA memory. Since CMA pages are recycled into page cache and user allocations, this is arbitrary memory corruption by GPU DMA. In practice it shows up as GPU hangs with corrupted control list pointers, userspace heap corruption, a GPU that stays permanently wedged after the first hang, and occasional full system crashes, whenever a job overflows the initial binner slot. The bug dates back to the conversion from a dedicated overflow BO (where writing the full BO size was correct) to the slotted binner BO. Fixes: 553c942f8b2c ("drm/vc4: Allow using more than 256MB of CMA memory.") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> Link: https://patch.msgid.link/20260727-vc4-bin-oom-fixes-v2-1-0d8a5eddc7c9@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-23drm/vc4: Shut down BO cache timer before teardownLinmao Li
The BO cache timer callback schedules time_work, and time_work can rearm the timer through vc4_bo_cache_free_old(). vc4_bo_cache_destroy() deletes the timer and then cancels the work, which does not break that cycle: the work being cancelled can rearm the timer, and the timer then queues work again after teardown. Use timer_shutdown_sync() instead, so the timer cannot be rearmed and the cycle ends with cancel_work_sync(). Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.") Cc: stable@vger.kernel.org Signed-off-by: Linmao Li <lilinmao@kylinos.cn> Link: https://patch.msgid.link/20260720084426.1632508-1-lilinmao@kylinos.cn Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-22drm/vc4: hvs/v3d: Fix null dereference in unbindGregor Herburger
The hvs and v3d drivers use dev_get_drvdata(master) in their unbind functions. Since the vc4-drm gets removed before its dependent drivers (vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to get drvdata of its master and fails with a null dereference error. Use the data pointer passed to the unbind functions directly instead of dev_get_drvdata(master). This avoids using potentially freed memory. Fixes: d3f5168a0810 ("drm/vc4: Bind and initialize the V3D engine.") Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.") Signed-off-by: Gregor Herburger <gregor.herburger@linutronix.de> Link: https://patch.msgid.link/20260721-rpi-vc4-fix-v2-1-b813dcd01dc7@linutronix.de Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-21drm/vc4: Prevent shader BO mappings from becoming writableLinmao Li
vc4_gem_object_mmap() rejects a writable mapping of a validated shader BO, but leaves VM_MAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotect(). Validated shader BOs must stay read-only: the validator checks the instructions once and the GPU trusts them afterwards. A writable mapping lets userspace rewrite the code after validation, bypassing the validator. Clear VM_MAYWRITE on the read-only path so the mapping cannot be upgraded, as i915 already does for its read-only objects. Fixes: 463873d57014 ("drm/vc4: Add an API for creating GPU shaders in GEM BOs.") Cc: stable@vger.kernel.org Reported-by: Sashiko <sashiko-bot@kernel.org> Closes: https://lore.kernel.org/dri-devel/20260720085554.B0AF01F000E9@smtp.kernel.org/ Signed-off-by: Linmao Li <lilinmao@kylinos.cn> Link: https://patch.msgid.link/20260721011558.1672477-1-lilinmao@kylinos.cn Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-18drm/vc4: hdmi: take i2c adapter module referenceJohan Hovold
The i2c subsystem currently blocks during adapter deregistration whenever there are consumers holding a reference. Switch to using of_get_i2c_adapter_by_node() which also takes a reference to the adapter module so that an attempt to unload the module while in use fails gracefully instead of blocking uninterruptibly. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20260716132448.1565278-1-johan@kernel.org Reviewed-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-07-07Merge tag 'drm-misc-next-2026-07-02' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 7.3: UAPI Changes: Cross-subsystem Changes: Core Changes: - bridge: Add atomic_create_state callback and helpers, drop atomic_reset - dp: Add support for DSC max delta BPP - edid: Parse panel type from DisplayID 2.x Display Parameters - sysfb: Improve panel, stride and framebuffer size validation Driver Changes: - hibmc: Improvements to the plane formats handling, switch to gem-shmem - nouveau: race fixes, misc improvements - bridges: - Convert all bridges to atomic_create_state - panels: - panel-edp: New quirks for BOE NE160QDM-NY1, MB116AS01 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20260702-powerful-successful-raptor-eded34@houat
2026-07-06Merge tag 'drm-misc-next-2026-06-19' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 7.3: UAPI Changes: - connector: Add color format property Cross-subsystem Changes: - dmem: introduce a peak file Core Changes: - atomic: Add create_state callback and helpers to all objects, add documentation on atomic commit lifetime - buddy: Fix use-after-free, add per-order free and used block scoreboards - gem: Remove DRIVER_GEM_GPUVA feature flag - hdmi: Hook the color format property in the helpers - mipi-dsi: Add MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT flag - sched: Add test suite for concurrent job submissions - virtio: Add support for saving and restoring virtio_gpu_objects, abort virtqueue wait on device removal to avoid hung task Driver Changes: - amdgpu: Implement "color format" DRM property - amdxdna: Disable device buffer exporting - ethosu: Add performance counter support - msm: Support DSC configurations with slice_per_pkt > 1 - mxsfb: Fix disable sequence - panthor: Support sparse mappings - rockchip: Support YUV background color, Fix layer config timeout, add edp support for rk3576, cleanups and formats improvements - solomon: Add a batch command submission function - tegra: Add DSI support for Tegra 20 and 30, fix dsi driver when the firmware hasn't enabled the controller, - v3d: Reduce PM runtime autosuspend delay, Scheduler and submission fixes and refactoring, Deprecate V3D 3.3 and 4.1 support - bridge: - display-connector: don't autoenable HPD IRQ, trigger initial HPD event for DP - dw-dp: Null pointer dereference and use-after-free fixes - ti-sn65dsi83: Remove NO_HFP and NO_HBP mode flags - panel: - himax-hx83121a: add backlight regulator support - novatek-nt36672a: Inline panel init sequences - panel-edp: Add quirks for AUO B116XAT04.3, CMN N116BCP-EA2, CSW MNB601LS1-8, BOE NV116WH2-M30, BOE NT116WHM-N21, BOE NV116FH1-M31, BOE NV116FH1-M30, NV140FHM-N5B, TM156VDXP25 - New panels: Samsung ATNA40HQ08-0, Anbernic TD4310, Chipone ICNA35XX, Ilitek ILI9488 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20260619-burgundy-termite-of-whirlwind-f7a4dd@houat
2026-07-03Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c ↵Uwe Kleine-König (The Capable Hub)
files) Replace the #include of <linux/mod_devicetable.h> by the more specific <linux/device-id/*.h> where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
2026-06-30Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging to get drm-misc-next to v7.2-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-06-22drm/vc4: dsi: Switch to atomic_create_stateMaxime Ripard
The drm_bridge_funcs.atomic_reset callback and its drm_atomic_helper_bridge_reset() helper are deprecated. Switch to the atomic_create_state callback and its drm_atomic_helper_bridge_create_state() counterpart. Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Acked-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # imx8mp + sn65dsi84 + bridge hotplug Link: https://patch.msgid.link/20260619-drm-no-more-bridge-reset-v3-71-ff399263111b@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-06-17Merge tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - xe: add initial CRI platform support - amdgpu: initial HDMI 2.1 FRL support - rust: add some new type concepts for device lifetimes - scheduler: moves to a fair algorithm and lots of cleanups But it's mostly the usual mountain of changes across the board. core: - add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD - change signature of drm_connector_attach_hdr_output_metadata_property - dedup counter and timestamp retrieval in vblank code - parse AMD VSDB v3 in CTA extension blocks - add P230, Y7, XYYY2101010, T430, XVUY210101010 formats - don't call drop master on file close if not master - use drm_printf_indent in atomic / bridge - fix 32b format descriptions - docs: fix toctree - hdmi: add common TMDS character rates - fix drm_syncobj_find_fence leak rust: - introduce Higher-Ranked lifetime types - replace drvdata with scoped registration data - add GPUVM immediate mode abstraction for rust GPU drivers - introduce DeviceContext type state for drm::Device bridge: - clarify drm_bridge_get/put - create drm_get_bridge_by_endpoint and use it - analogix_dp: add panel probing - ite-it6211 - use drm audio hdmi helpers buddy: - add lockdep annotations dp: - add PR and VRR updates - mst: fix buffer overflows - add Adaptive Sync SDP decoding support - fix OOB reads in dp-mst ttm: - bump fpfn/lpfn to 64-bit scheduler: - change default to fair scheduler - map runqueue 1:1 with scheduler dma-buf: - port selftests to kunit - convert dma-buf system/heap allocators to module - add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig udmabuf: - revert hugetlb support - fix error with CONFIG_DMA_API_DEBUG dma-fence: - fix tracepoints lifetime - remove unused signal on any support ras: - add clear error counter netlink command to drm ras gpusvm: - reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges - use IOVA allocations pagemap: - use IOVA allocations panels: - update to use ref counts - add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1 - add support for waveshare panels - CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, - IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, - AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels - Surface Pro 12 Panel xe: - add CRI PCI-IDs - debugfs add multi-lrc info - engine init cleanup - PF fair scheduling auto provisioning - system controller support for CRI/Xe3p - PXP state machine fixes - Reset/wedge/unload corner case fixes - Wedge path memory allocation fixes - PAT type cleanups - Reject unsafe PAT for CPU cached memory - OA improvements for CRI device memory - kernel doc syntax in xe headers - xe_drm.h documentation fixes - include guard cleanups - VF CCS memory pool - i915/xe step unification - Xe3p GT tuning fixes - forcewake cleanup in GT and GuC - admin-only PF mode - enable hwmon energy attributes for CRI - enable GT_MI_USER_INTERRUPT - refactor emit functions - oa workarounds - multi_queue: allow QUEUE_TIMESTAMP register - convert stolen memory to ttm range manager - use xe2 style blitter as a feature flag - make drm_driver const - add/use IRQ page to HW engine definition - fix oops when display disabled i915: - enable PIPEDMC_ERROR interrupt - more common display code refactoring - restructure DP/HDMI sink format handling - eliminate FB usage from lowlevel pinning code - panel replay bw optimization - integrate sharpness filter into the scaler - new fb_pin abstraction for xe/i915 fb transparent handling - skip inactive MST connectors on HDCP - start switching to display specific registers - use polling when irq unavailable - Adaptive-sync SDP prep amdgpu: - use drm_display_info for AMD VSDB data - Initial HDMI 2.1 FRL support - Initial DCN 4.2.1 support - GART fixes for non-4k pages - GC 11.5.6/SDMA 6.4.0/and other new IPs - GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes - Finish support for using multiple SDMA queues for TTM operations - SWSMU updates - GC 12.1 updates - SMU 15.0.8 updates - DCN 4.2 updates - DC type conversion fixes - Enable DC power module - Replay/PSR updates - SMU 13.x updates - Compute queue quantum MQD updates - ASPM fix - Align VKMS with common implementation - DC analog support fixes - UVD 3 fixes - TCC harvesting fixes for SI - GC 11 APU module reload fix - NBIO 6.3.2 support - IH 7.1 updates - DC cursor fixes - VCN/JPEG user fence fixes - DC support for connectors without DDC - Prefer ROM BAR for default VGA device - DC bandwidth fixes - Add PTL support for profiler - Introduce dc_plane_cm and migrate surface update color path - Add FRL registers for HDMI 2.1 - Restructure VM state machine - Auxless ALPM support - GEM_OP locking/warning fixes - switch to system_dfl_wq amdkfd: - GPUVM TLB flush fix - Hotplug fix - Boundary check fixes - SVM fixes - CRIU fixes - add profiler API - MES 12.1 updates msm: - core: - fix shrinker documentation - IFPC enabled for gen8 - PERFCNTR_CONFIG ioctl support - GPU: - reworked UBWC handling - a810 support - MDSS: - add support for Milos platform - reworked UBWC handling - DisplayPort: - reworked HPD handling as prep for MST - DPU: - Milos platform support - reworked UBWC handling - DSI: - Milos platform support nova: - Hopper/Blackwell enablement (GH100/GB100/GB202) - FSP support - 32-bit firmware support - HAL functions - refactor GSP boot/unload - GA100 support - VBIOS hardening/refactoring - Adopt higher order lifetime types tyr: - define register blocks - add shmem backed GEM objects - adopt higher order lifetime types - move clock cleanup into Drop radeon: - Hawaii SMU fixes - CS parser fix - use struct drm_edid instead of edid amdxdna: - export per-client BO memory via fdinfo - AIE4 device support - support medium/lower power modes - expandable device heap support - revert read-only user-pointer BO mappings ivpu: - support frequency limiting panthor: - enable GEM shrinker support - add eviction and reclaim info to fdinfo v3d: - enable runtime PM mgag200: - support XRGB1555 + C8 ast: - support XRGB1555 + C8 - use constants for lots of registers - fix register handling imagination: - fence handling refactoring nouveau: - fix sched double call - expose VBIOS on GSP-RM systems - add GA100 support virtio: - add VIRTIO_GPU_F_BLOB_ALIGNMENT flag - add deferred mapping support gud: - add RCade Display Adapter hibmc: - fix no connectors usage mediatek: - hdmi: convert error handling - simplify mtk_crtc allocation exynos: - move fbdev emulation to drm client buffers - use drm format helpers for geometry/size - adopt core DMA tracking - fix framebuffer offset handling renesas: - add RZ/T2H SOC support versilicon: - add cursor plane support tegra: - use drm client for framebuffer" * tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel: (1731 commits) dma-buf: move system_cc_shared heap under separate Kconfig accel/amdxdna: Clear sva pointer after unbind agp/amd64: Fix broken error propagation in agp_amd64_probe() accel/amdxdna: Require carveout when PASID and force_iova are disabled drm/amdkfd: always resume_all after suspend_all drm/amdgpu/gfx: move fault and EOP IRQ get/put to hw_init/hw_fini drm/amd/display: Consult MCCS FreeSync cap only if requested & supported drm/amd/pm: Use strscpy in profile mode parsing drm/amdkfd: Fix infinite loop parsing CRAT with zero subtype length drm/amdkfd: fix sysfs topology prop length on buffer truncation drm/amdgpu: drop retry loop in amdgpu_hmm_range_get_pages drm/amd/pm: bound OD parameter parsing to stack array size drm/amd/pm: Stop pp_od_clk_voltage emit at PAGE_SIZE drm/amdkfd: Unwind debug trap enable on copy_to_user failure drm/amdgpu: validate the mes firmware version for gfx12.1 drm/amdgpu: validate the mes firmware version for gfx12 drm/amdgpu: compare MES firmware version ucode for gfx11 drm/amdkfd: Add bounds check for AMDKFD_IOC_WAIT_EVENTS drm/amdgpu: restart the CS if some parts of the VM are still invalidated drm/amd/display: use unsigned types for local pipe and REG_GET counters ...
2026-06-09drm/vc4: fix krealloc() memory leakAlexander A. Klimov
Don't just overwrite the original pointer passed to krealloc() with its return value without checking latter: MEM = krealloc(MEM, SZ, GFP); If krealloc() returns NULL, that erases the pointer to the still allocated memory, hence leaks this memory. Instead, use a temporary variable, check it's not NULL and only then assign it to the original pointer: TMP = krealloc(MEM, SZ, GFP); if (!TMP) return; MEM = TMP; While on it, use krealloc_array(). Fixes: 6d45c81d229d ("drm/vc4: Add support for branching in shader validation.") Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Maíra Canal <mcanal@igalia.com> Link: https://patch.msgid.link/20260606123817.37222-1-grandmaster@al2klimov.de
2026-05-29drm/hdmi: Rename __drm_atomic_helper_connector_hdmi_reset()Maxime Ripard
__drm_atomic_helper_connector_hdmi_reset() is typically used to initialize a newly allocated drm_connector_state when the connector is using the HDMI helpers, and is being called by the drm_connector_funcs.reset implementation. Since we want to consolidate DRM objects state allocation around the atomic_create_state callback that will only allocate and initialize a new drm_connector_state instance, we will need to call __drm_atomic_helper_connector_hdmi_reset() from both the reset and atomic_create hooks. To avoid any confusion, we can thus rename __drm_atomic_helper_connector_hdmi_reset() to __drm_atomic_helper_connector_hdmi_state_init(). Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://patch.msgid.link/20260526-drm-mode-config-init-v6-14-852346394200@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-05-06Merge tag 'drm-misc-next-2026-04-20' of ↵Dave Airlie
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: Rename struct drm_atomic_state to drm_atomic_commitMaxime Ripard
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
2026-04-15Merge tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - new DRM RAS infrastructure using netlink - amdgpu: enable DC on CIK APUs, and more IP enablement, and more user queue work - xe: purgeable BO support, and new hw enablement - dma-buf : add revocable operations Full summary: mm: - two-pass MMU interval notifiers - add gpu active/reclaim per-node stat counters math: - provide __KERNEL_DIV_ROUND_CLOSEST() in UAPI - implement DIV_ROUND_CLOSEST() with __KERNEL_DIV_ROUND_CLOSEST() rust: - shared tag with driver-core: register macro and io infra - core: rework DMA coherent API - core: add interop::list to interop with C linked lists - core: add more num::Bounded operations - core: enable generic_arg_infer and add EMSGSIZE - workqueue: add ARef<T> support for work and delayed work - add GPU buddy allocator abstraction - add DRM shmem GEM helper abstraction - allow drm:::Device to dispatch work and delayed work items to driver private data - add dma_resv_lock helper and raw accessors core: - introduce DRM RAS infrastructure over netlink - add connector panel_type property - fourcc: add ARM interleaved 64k modifier - colorop: add destroy helper - suballoc: split into alloc and init helpers - mode: provide DRM_ARGB_GET*() macros for reading color components edid: - provide drm_output_color_Format dma-buf: - provide revoke mechanism for shared buffers - rename move_notify to invalidate_mappings - always enable move_notify - protect dma_fence_ops with RCU and improve locking - clean pages with helpers atomic: - allocate drm_private_state via callback - helper: use system_percpu_wq buddy: - make buddy allocator available to gpu level - add kernel-doc for buddy allocator - improve aligned allocation ttm: - fix fence signalling - improve tests and docs - improve handling of gfp_retry_mayfail - use per-node stat counters to track memory allocations - port pool to use list_lru - drop NUMA specific pools - make pool shrinker numa aware - track allocated pages per numa node coreboot: - cleanup coreboot framebuffer support sched: - fix race condition in drm_sched_fini pagemap: - enable THP support - pass pagemap_addr by reference gem-shmem: - Track page accessed/dirty status across mmap/vmap gpusvm: - reenable device to device migration - fix unbalanced unclock bridge: - anx7625: Support USB-C plus DT bindings - connector: Fix EDID detection - dw-hdmi-qp: Support Vendor-Specfic and SDP Infoframes; improve others - fsl-ldb: Fix visual artifacts plus related DT property 'enable-termination-resistor' - imx8qxp-pixel-link: Improve bridge reference handling - lt9611: Support Port-B-only input plus DT bindings - tda998x: Support DRM_BRIDGE_ATTACH_NO_CONNECTOR; Clean up - Support TH1520 HDMI plus DT bindings - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings - anx7625: Fix USB Type-C handling - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check - Support Lontium LT8713SX DP MST bridge plus DT bindings - analogix_dp: Use DP helpers for link training panel: - panel-jdi-lt070me05000: Use mipi-dsi multi functions - panel-edp: Support Add AUO B116XAT04.1 (HW: 1A); Support CMN N116BCL-EAK (C2); Support FriendlyELEC plus DT changes - panel-edp: Fix timings for BOE NV140WUM-N64 - ilitek-ili9882t: Allow GPIO calls to sleep - jadard: Support TAIGUAN XTI05101-01A - lxd: Support LXD M9189A plus DT bindings - mantix: Fix pixel clock; Clean up - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings - novatek: Support Novatek/Tianma NT37700F plus DT bindings - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3" - novatek-nt36672a: Use mipi_dsi_*_multi() functions - panel-edp: Support BOE NV153WUM-N42, CMN N153JCA-ELK, CSW MNF307QS3-2 - support Himax HX83121A plus DT bindings - support JuTouch JT070TM041 plus DT bindings - support Samsung S6E8FC0 plus DT bindings - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings - simple: support Tianma TM050RDH03 plus DT bindings amdgpu: - enable DC by default on CIK APUs - userq fence ioctl param size fixes - set panel_type to OLED for eDP - refactor DC i2c code - FAMS2 update - rework ttm handling to allow multiple engines - DC DCE 6.x cleanup - DC support for NUTMEG/TRAVIS DP bridge - DCN 4.2 support - GC12 idle power fix for compute - use struct drm_edid in non-DC code - enable NV12/P010 support on primary planes - support newer IP discovery tables - VCN/JPEG 5.0.2 support - GC/MES 12.1 updates - USERQ fixes - add DC idle state manager - eDP DSC seamless boot amdkfd: - GC 12.1 updates - non 4K page fixes xe: - basic Xe3p_LPG and NVL-P enabling patches - allow VM_BIND decompress support - add purgeable buffer object support - add xe_vm_get_property_ioctl - restrict multi-lrc to VCS/VECS engines - allow disabling VM overcommit in fault mode - dGPU memory optimizations - Workaround cleanups and simplification - Allow VFs VRAM quote changes using sysfs - convert GT stats to per-cpu counters - pagefault refactors - enable multi-queue on xe3p_xpc - disable DCC on PTL - make MMIO communication more robust - disable D3Cold for BMG on specific platforms - vfio: improve FLR sync for Xe VFIO i915/display: - C10/C20/LT PHY PLL divider verification - use trans push mechanism to generate PSR frame change on LNL+ - refactor DP DSC slice config - VGA decode refactoring - refactor DPT, gen2-4 overlay, masked field register macro helpers - refactor stolen memory allocation decisions - prepare for UHBR DP tunnels - refactor LT PHY PLL to use DPLL framework - implement register polling/waiting in display code - add shared stepping header between i915 and display i915: - fix potential overflow of shmem scatterlist length nouveau: - provide Z cull info to userspace - initial GA100 support - shutdown on PCI device shutdown nova-core: - harden GSP command queue - add support for large RPCs - simplify GSP sequencer and message handling - refactor falcon firmware handling - convert to new register macro - conver to new DMA coherent API - use checked arithmetic - add debugfs support for gsp-rm log buffers - fix aux device registration for multi-GPU msm: - CI: - Uprev mesa - Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices - Core: - Switched to of_get_available_child_by_name() - DPU: - Fixes for DSC panels - Fixed brownout because of the frequency / OPP mismatch - Quad pipe preparation (not enabled yet) - Switched to virtual planes by default - Dropped VBIF_NRT support - Added support for Eliza platform - Reworked alpha handling - Switched to correct CWB definitions on Eliza - Dropped dummy INTF_0 on MSM8953 - Corrected INTFs related to DP-MST - DP: - Removed debug prints looking into PHY internals - DSI: - Fixes for DSC panels - RGB101010 support - Support for SC8280XP - Moved PHY bindings from display/ to phy/ - GPU: - Preemption support for x2-85 and a840 - IFPC support for a840 - SKU detection support for x2-85 and a840 - Expose AQE support (VK ray-pipeline) - Avoid locking in VM_BIND fence signaling path - Fix to avoid reclaim in GPU snapshot path - Disallow foreign mapping of _NO_SHARE BOs - HDMI: - Fixed infoframes programming - MDP5: - Dropped support for MSM8974v1 - Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998 panthor: - add tracepoints for power and IRQs - fix fence handling - extend timestamp query with flags - support various sources for timestamp queries tyr: - fix names and model/versions rockchip: - vop2: use drm logging function - rk3576 displayport support - support CRTC background color atmel-hlcdc: - support sana5d65 LCD controller tilcdc: - use DT bindings schema - use managed DRM interfaces - support DRM_BRIDGE_ATTACH_NO_CONNECTOR verisilicon: - support DC8200 + DT bindings virtgpu: - support PRIME import with 3D enabled komeda: - fix integer overflow in AFBC checks mcde: - improve bridge handling gma500: - use drm client buffer for fbdev framebuffer amdxdna: - add sensors ioctls - provide NPU power estimate - support column utilization sensor - allow forcing DMA through IOMMU IOVA - support per-BO mem usage queries - refactor GEM implementation ivpu: - update boot API to v3.29.4 - limit per-user number of doorbells/contexts - perform engine reset on TDR error loongson: - replace custom code with drm_gem_ttm_dumb_map_offset() imx: - support planes behind the primary plane - fix bus-format selection vkms: - support CRTC background color v3d: - improve handling of struct v3d_stats komeda: - support Arm China Linlon D6 plus DT bindings imagination: - improve power-off sequence - support context-reset notification from firmware mediatek: - mtk_dsi: enable hs clock during pre-enable - Remove all conflicting aperture devices during probe - Add support for mt8167 display blocks" * tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernel: (1735 commits) drm/ttm/tests: Remove checks from ttm_pool_free_no_dma_alloc drm/ttm/tests: fix lru_count ASSERT drm/vram: remove DRM_VRAM_MM_FILE_OPERATIONS from docs drm/fb-helper: Fix a locking bug in an error path dma-fence: correct kernel-doc function parameter @flags ttm/pool: track allocated_pages per numa node. ttm/pool: make pool shrinker NUMA aware (v2) ttm/pool: drop numa specific pools ttm/pool: port to list_lru. (v2) drm/ttm: use gpu mm stats to track gpu memory allocations. (v4) mm: add gpu active/reclaim per-node stat counters (v2) gpu: nova-core: fix missing colon in SEC2 boot debug message gpu: nova-core: vbios: use from_le_bytes() for PCI ROM header parsing gpu: nova-core: bitfield: fix broken Default implementation gpu: nova-core: falcon: pad firmware DMA object size to required block alignment gpu: nova-core: gsp: fix undefined behavior in command queue code drm/shmem_helper: Make sure PMD entries get the writeable upgrade accel/ivpu: Trigger recovery on TDR with OS scheduling drm/msm: Use of_get_available_child_by_name() dt-bindings: display/msm: move DSI PHY bindings to phy/ subdir ...
2026-04-02drm/vc4: Clean-up UAPI header inclusionMaíra Canal
"uapi/drm/vc4_drm.h" is already included through "vc4_drv.h". Therefore, remove its direct inclusion from several files. Suggested-by: Melissa Wen <mwen@igalia.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-6-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-04-02drm/vc4: Use devm_request_irq() for automatic cleanupMaíra Canal
Switch from request_irq()/free_irq() to the device-managed alternative devm_request_irq(), letting device-managed resource cleanup handle IRQ teardown automatically. While here, inline vc4_irq_prepare() into vc4_irq_install() since it's the only caller. Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-5-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-04-02drm/vc4: Protect madv read in vc4_gem_object_mmap() with madv_lockMaíra Canal
The mmap callback reads bo->madv without holding madv_lock, racing with concurrent DRM_IOCTL_VC4_GEM_MADVISE calls that modify the field under the same lock. Add the missing locking to prevent the data race. Fixes: b9f19259b84d ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl") Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-4-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-04-02drm/vc4: Fix a memory leak in hang state error pathMaíra Canal
When vc4_save_hang_state() encounters an early return condition, it returns without freeing the previously allocated `kernel_state`, leaking memory. Add the missing kfree() calls by consolidating the early return paths into a single place. Fixes: 214613656b51 ("drm/vc4: Add an interface for capturing the GPU state after a hang.") Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-3-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-04-02drm/vc4: Fix memory leak of BO array in hang stateMaíra Canal
The hang state's BO array is allocated separately with kzalloc() in vc4_save_hang_state() but never freed in vc4_free_hang_state(). Add the missing kfree() for the BO array before freeing the hang state struct. Fixes: 214613656b51 ("drm/vc4: Add an interface for capturing the GPU state after a hang.") Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-2-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-04-02drm/vc4: Release runtime PM reference after binding V3DMaíra Canal
The vc4_v3d_bind() function acquires a runtime PM reference via pm_runtime_resume_and_get() to access V3D registers during setup. However, this reference is never released after a successful bind. This prevents the device from ever runtime suspending, since the reference count never reaches zero. Release the runtime PM reference by adding pm_runtime_put_autosuspend() after autosuspend is configured, allowing the device to runtime suspend after the delay. Fixes: 266cff37d7fc ("drm/vc4: v3d: Rework the runtime_pm setup") Reviewed-by: Melissa Wen <mwen@igalia.com> Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-1-92defc940a29@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-03-24drm/display: hdmi: Use drm_output_color_format instead of hdmi_colorspaceMaxime Ripard
The hdmi_colorspace enum was defined to represent the colorspace value of the HDMI infoframes. It was later used by some HDMI drivers to express the output format they should be setting up. During the introduction of the HDMI helpers, it then was used to represent it in the drm_connector_hdmi_state structure. However, it's always been somewhat redundant with the DRM_COLOR_FORMAT_* defines, and now with the drm_output_color_format enum. Let's consolidate around drm_output_color_format in drm_connector_hdmi_state to facilitate the current effort to provide a global output format selection mechanism. Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20260305-drm-rework-color-formats-v3-14-f3935f6db579@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-03-20drm/atomic: Remove state argument to drm_atomic_private_obj_initMaxime Ripard
Now that all drm_private_objs users have been converted to use atomic_create_state instead of the old ad-hoc initialization, we can remove the state parameter from drm_private_obj_init and the fallback code. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20260224-drm-private-obj-reset-v5-4-5a72f8ec9934@kernel.org Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-03-05drm/vc4: platform_get_irq_byname() returns an intGreg Kroah-Hartman
platform_get_irq_byname() will return a negative value if an error happens, so it should be checked and not just passed directly into devm_request_threaded_irq() hoping all will be ok. Cc: Maxime Ripard <mripard@kernel.org> Cc: Dave Stevenson <dave.stevenson@raspberrypi.com> Cc: Maíra Canal <mcanal@igalia.com> Cc: Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@gmail.com> Cc: Simona Vetter <simona@ffwll.ch> Cc: stable <stable@kernel.org> Assisted-by: gkh_clanker_2000 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/2026022339-cornflake-t-shirt-2471@gregkh Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-03-03drm/vc4: Test for imported buffers with drm_gem_is_imported()Thomas Zimmermann
Instead of testing import_attach for imported GEM buffers, invoke drm_gem_is_imported() to do the test. The test itself does not change. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Maxime Ripard <mripard@kernel.org> Cc: Dave Stevenson <dave.stevenson@raspberrypi.com> Cc: "Maíra Canal" <mcanal@igalia.com> Cc: Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://patch.msgid.link/20260227133113.235940-12-tzimmermann@suse.de
2026-02-23Merge drm/drm-next into drm-misc-nextMaxime Ripard
Let's merge 7.0-rc1 to start the new drm-misc-next window Signed-off-by: Maxime Ripard <mripard@kernel.org>
2026-02-21Convert more 'alloc_obj' cases to default GFP_KERNEL argumentsLinus Torvalds
This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21Convert 'alloc_flex' family to use the new default GFP_KERNEL argumentLinus Torvalds
This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>