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path: root/drivers/gpu/drm/drm_plane.c
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2026-02-22Convert more 'alloc_obj' cases to default GFP_KERNEL argumentsLinus Torvalds1-2/+1
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>
2026-02-22Convert 'alloc_obj' family to use the new default GFP_KERNEL argumentLinus Torvalds1-1/+1
This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21treewide: Replace kmalloc with kmalloc_obj for non-scalar typesKees Cook1-4/+3
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2025-12-26Merge tag 'drm-misc-next-2025-12-12' of ↵Dave Airlie1-2/+2
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 6.19: UAPI Changes: - panfrost: Add PANFROST_BO_SYNC ioctl - panthor: Add PANTHOR_BO_SYNC ioctl Core Changes: - atomic: Add drm_device pointer to drm_private_obj - bridge: Introduce drm_bridge_unplug, drm_bridge_enter, and drm_bridge_exit - dma-buf: Improve sg_table debugging - dma-fence: Add new helpers, and use them when needed - dp_mst: Avoid out-of-bounds access with VCPI==0 - gem: Reduce page table overhead with transparent huge pages - panic: Report invalid panic modes - sched: Add TODO entries - ttm: Various cleanups - vblank: Various refactoring and cleanups - Kconfig cleanups - Removed support for kdb Driver Changes: - amdxdna: Fix race conditions at suspend, Improve handling of zero tail pointers, Fix cu_idx being overwritten during command setup - ast: Support imported cursor buffers - - panthor: Enable timestamp propagation, Multiple improvements and fixes to improve the overall robustness, notably of the scheduler. - panels: - panel-edp: Support for CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H Signed-off-by: Dave Airlie <airlied@redhat.com> [airlied: fix mm conflict] From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20251212-spectacular-agama-of-abracadabra-aaef32@penduick
2025-12-13Merge tag 'drm-fixes-2025-12-13' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds1-4/+4
Pull more drm fixes from Dave Airlie: "These are the enqueued fixes that ended up in our fixes branch, nouveau mostly, along with some small fixes in other places. plane: - Handle IS_ERR vs NULL in drm_plane_create_hotspot_properties() ttm: - fix devcoredump for evicted bos panel: - Fix stack usage warning in novatek-nt35560 nouveau: - alloc fwsec sb at boot to avoid s/r problems - fix strcpy usage - fix i2c encoder crash bridge: - Ignore spurious PLL_UNLOCK bit in ti-sn65dsi83 mgag200: - Fix bigendian handling in mgag200 tilcdc: - Fix probe failure in tilcdc" * tag 'drm-fixes-2025-12-13' of https://gitlab.freedesktop.org/drm/kernel: drm/mgag200: Fix big-endian support drm/tilcdc: Fix removal actions in case of failed probe drm/ttm: Avoid NULL pointer deref for evicted BOs drm: nouveau: Replace sprintf() with sysfs_emit() drm/nouveau: fix circular dep oops from vendored i2c encoder drm/nouveau: refactor deprecated strcpy drm/plane: Fix IS_ERR() vs NULL check in drm_plane_create_hotspot_properties() drm/bridge: ti-sn65dsi83: ignore PLL_UNLOCK errors drm/nouveau/gsp: Allocate fwsec-sb at boot drm/panel: novatek-nt35560: avoid on-stack device structure
2025-12-11drm/plane: Fix IS_ERR() vs NULL bug drm_plane_create_color_pipeline_property()Dan Carpenter1-2/+2
The drm_property_create_enum() function returns NULL on error, it never returns error pointers. Fix the error checking to match. Fixes: 2afc3184f3b3 ("drm/plane: Add COLOR PIPELINE property") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/aTK9ZR0sMgqSACow@stanley.mountain
2025-12-05Merge tag 'hardening-v6.19-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: - string: Add missing kernel-doc return descriptions (Kriish Sharma) - Update some mis-typed allocations These correct some accidentally wrong types used in allocations (that didn't affect the resulting size) that never got picked up from the batch I sent a few months ago. - Enable GCC diagnostic context for value-tracking warnings This results in better GCC diagnostics for the value range tracking, so we can get better visibility into where those values are coming from when we get out-of-bounds warnings at compile time. * tag 'hardening-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: kbuild: Enable GCC diagnostic context for value-tracking warnings string: Add missing kernel-doc return descriptions media: iris: Cast iris_hfi_gen2_get_instance() allocation type drm/plane: Remove const qualifier from plane->modifiers allocation type comedi: Adjust range_table_list allocation type
2025-12-05drm/plane: Fix IS_ERR() vs NULL check in drm_plane_create_hotspot_properties()Dan Carpenter1-4/+4
The drm_property_create_signed_range() function doesn't return error pointers it returns NULL on error. Fix the error checking to match. Fixes: 8f7179a1027d ("drm/atomic: Add support for mouse hotspots") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Zack Rusin <zack.rusin@broadcom.com> Link: https://patch.msgid.link/aTB023cfcIPkCsFS@stanley.mountain Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-12-04Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds1-0/+59
Pull drm updates from Dave Airlie: "There was a rather late merge of a new color pipeline feature, that some userspace projects are blocked on, and has seen a lot of work in amdgpu. This should have seen some time in -next. There is additional support for this for Intel, that if it arrives in the next day or two I'll pass it on in another pull request and you can decide if you want to take it. Highlights: - Arm Ethos NPU accelerator driver - new DRM color pipeline support - amdgpu will now run discrete SI/CIK cards instead of radeon, which enables vulkan support in userspace - msm gets gen8 gpu support - initial Xe3P support in xe Full detail summary: New driver: - Arm Ethos-U65/U85 accel driver Core: - support the drm color pipeline in vkms/amdgfx - add support for drm colorop pipeline - add COLOR PIPELINE plane property - add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE - throttle dirty worker with vblank - use drm_for_each_bridge_in_chain_scoped in drm's bridge code - Ensure drm_client_modeset tests are enabled in UML - add simulated vblank interrupt - use in drivers - dumb buffer sizing helper - move freeing of drm client memory to driver - crtc sharpness strength property - stop using system_wq in scheduler/drivers - support emergency restore in drm-client Rust: - make slice::as_flattened usable on all supported rustc - add FromBytes::from_bytes_prefix() method - remove redundant device ptr from Rust GEM object - Change how AlwaysRefCounted is implemented for GEM objects gpuvm: - Add deferred vm_bo cleanup to GPUVM (for rust) atomic: - cleanup and improve state handling interfaces buddy: - optimize block management dma-buf: - heaps: Create heap per CMA reserved location - improve userspace documentation dp: - add POST_LT_ADJ_REQ training sequence - DPCD dSC quirk for synaptics panamera devices - helpers to query branch DSC max throughput ttm: - Rename ttm_bo_put to ttm_bo_fini - allow page protection flags on risc-v - rework pipelined eviction fence handling amdgpu: - enable amdgpu by default for SI/CI dGPUs - enable DC by default on SI - refactor CIK/SI enablement - add ABM KMS property - Re-enable DM idle optimizations - DC Analog encoders support - Powerplay fixes for fiji/iceland - Enable DC on bonaire by default - HMM cleanup - Add new RAS framework - DML2.1 updates - YCbCr420 fixes - DC FP fixes - DMUB fixes - LTTPR fixes - DTBCLK fixes - DMU cursor offload handling - Userq validation improvements - Unify shutdown callback handling - Suspend improvements - Power limit code cleanup - SR-IOV fixes - AUX backlight fixes - DCN 3.5 fixes - HDMI compliance fixes - DCN 4.0.1 cursor updates - DCN interrupt fix - DC KMS full update improvements - Add additional HDCP traces - DCN 3.2 fixes - DP MST fixes - Add support for new SR-IOV mailbox interface - UQ reset support - HDP flush rework - VCE1 support amdkfd: - HMM cleanups - Relax checks on save area overallocations - Fix GPU mappings after prefetch radeon: - refactor CIK/SI enablement xe: - Initial Xe3P support - panic support on VRAM for display - fix stolen size check - Loosen used tracking restriction - New SR-IOV debugfs structure and debugfs updates - Hide the GPU madvise flag behind a VM_BIND flag - Always expose VRAM provisioning data on discrete GPUs - Allow VRAM mappings for userptr when used with SVM - Allow pinning of p2p dma-buf - Use per-tile debugfs where appropriate - Add documentation for Execution Queues - PF improvements - VF migration recovery redesign work - User / Kernel VRAM partitioning - Update Tile-based messages - Allow configfs to disable specific GT types - VF provisioning and migration improvements - use SVM range helpers in PT layer - Initial CRI support - access VF registers using dedicated MMIO view - limit number of jobs per exec queue - add sriov_admin sysfs tree - more crescent island specific support - debugfs residency counter - SRIOV migration work - runtime registers for GFX 35 i915: - add initial Xe3p_LPD display version 35 support - Enable LNL+ content adaptive sharpness filter - Use optimized VRR guardband - Enable Xe3p LT PHY - enable FBC support for Xe3p_LPD display - add display 30.02 firmware support - refactor SKL+ watermark latency setup - refactor fbdev handling - call i915/xe runtime PM via function pointers - refactor i915/xe stolen memory/display interfaces - use display version instead of gfx version in display code - extend i915_display_info with Type-C port details - lots of display cleanups/refactorings - set O_LARGEFILE in __create_shmem - skuip guc communication warning on reset - fix time conversions - defeature DRRS on LNL+ - refactor intel_frontbuffer split between i915/xe/display - convert inteL_rom interfaces to struct drm_device - unify display register polling interfaces - aovid lock inversion when pinning to GGTT on CHV/BXT+VTD panel: - Add KD116N3730A08/A12, chromebook mt8189 - JT101TM023, LQ079L1SX01, - GLD070WX3-SL01 MIPI DSI - Samsung LTL106AL0, Samsung LTL106AL01 - Raystar RFF500F-AWH-DNN - Winstar WF70A8SYJHLNGA - Wanchanglong w552946aaa - Samsung SOFEF00 - Lenovo X13s panel - ilitek-ili9881c - add rpi 5" support - visionx-rm69299 - add backlight support - edp - support AUI B116XAN02.0 bridge: - improve ref counting - ti-sn65dsi86 - add support for DP mode with HPD - synopsis: support CEC, init timer with correct freq - ASL CS5263 DP-to-HDMI bridge support nova-core: - introduce bitfield! macro - introduce safe integer converters - GSP inits to fully booted state on Ampere - Use more future-proof register for GPU identification nova-drm: - select NOVA_CORE - 64-bit only nouveau: - improve reclocking on tegra 186+ - add large page and compression support msm: - GPU: - Gen8 support: A840 (Kaanapali) and X2-85 (Glymur) - A612 support - MDSS: - Added support for Glymur and QCS8300 platforms - DPU: - Enabled Quad-Pipe support, unlocking higher resolutions support - Added support for Glymur platform - Documented DPU on QCS8300 platform as supported - DisplayPort: - Added support for Glymur platform - Added support lame remapping inside DP block - Documented DisplayPort controller on QCS8300 and SM6150/QCS615 as supported tegra: - NVJPG driver panfrost: - display JM contexts over debugfs - export JM contexts to userspace - improve error and job handling panthor: - support custom ASN_HASH for mt8196 - support mali-G1 GPU - flush shmem write before mapping buffers uncached - make timeout per-queue instead of per-job mediatek: - MT8195/88 HDMIv2/DDCv2 support rockchip: - dsi: add support for RK3368 amdxdna: - enhance runtime PM - last hardware error reading uapi - support firmware debug output - add resource and telemetry data uapi - preemption support imx: - add driver for HDMI TX Parallel audio interface ivpu: - add support for user-managed preemption buffer - add userptr support - update JSM firware API to 3.33.0 - add better alloc/free warnings - fix page fault in unbind all bos - rework bind/unbind of imported buffers - enable MCA ECC signalling - split fw runtime and global memory buffers - add fdinfo memory statistics tidss: - convert to drm logging - logging cleanup ast: - refactor generation init paths - add per chip generation detect_tx_chip - set quirks for each chip model atmel-hlcdc: - set LCDC_ATTRE register in plane disable - set correct values for plane scaler solomon: - use drm helper for get_modes and move_valid sitronix: - fix output position when clearing screens qaic: - support dma-buf exports - support new firmware's READ_DATA implementation - sahara AIC200 image table update - add sysfs support - add coredump support - add uevents support - PM support sun4i: - layer refactors to decouple plane from output - improve DE33 support vc4: - switch to generic CEC helpers komeda: - use drm_ logging functions vkms: - configfs support for display configuration vgem: - fix fence timer deadlock etnaviv: - add HWDB entry for GC8000 Nano Ultra VIP r6205" * tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel: (1869 commits) Revert "drm/amd: Skip power ungate during suspend for VPE" drm/amdgpu: use common defines for HUB faults drm/amdgpu/gmc12: add amdgpu_vm_handle_fault() handling drm/amdgpu/gmc11: add amdgpu_vm_handle_fault() handling drm/amdgpu: use static ids for ACP platform devs drm/amdgpu/sdma6: Update SDMA 6.0.3 FW version to include UMQ protected-fence fix drm/amdgpu: Forward VMID reservation errors drm/amdgpu/gmc8: Delegate VM faults to soft IRQ handler ring drm/amdgpu/gmc7: Delegate VM faults to soft IRQ handler ring drm/amdgpu/gmc6: Delegate VM faults to soft IRQ handler ring drm/amdgpu/gmc6: Cache VM fault info drm/amdgpu/gmc6: Don't print MC client as it's unknown drm/amdgpu/cz_ih: Enable soft IRQ handler ring drm/amdgpu/tonga_ih: Enable soft IRQ handler ring drm/amdgpu/iceland_ih: Enable soft IRQ handler ring drm/amdgpu/cik_ih: Enable soft IRQ handler ring drm/amdgpu/si_ih: Enable soft IRQ handler ring drm/amd/display: fix typo in display_mode_core_structs.h drm/amd/display: fix Smart Power OLED not working after S4 drm/amd/display: Move RGB-type check for audio sync to DCE HW sequence ...
2025-11-27drm/plane: Add COLOR PIPELINE propertyHarry Wentland1-0/+59
We're adding a new enum COLOR PIPELINE property. This property will have entries for each COLOR PIPELINE by referencing the DRM object ID of the first drm_colorop of the pipeline. 0 disables the entire COLOR PIPELINE. Userspace can use this to discover the available color pipelines, as well as set the desired one. The color pipelines are programmed via properties on the actual drm_colorop objects. Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-11-alex.hung@amd.com
2025-11-24drm/plane: Remove const qualifier from plane->modifiers allocation typeKees Cook1-1/+1
In preparation for making the kmalloc family of allocators type aware, we need to make sure that the returned type from the allocation matches the type of the variable being assigned. (Before, the allocator would always return "void *", which can be implicitly cast to any pointer type.) The assigned type is "uint64_t *", but the returned type, while matching, will be const qualified. As there is no general way to remove const qualifiers, adjust the allocation type to match the assignment. Link: https://patch.msgid.link/20250426061325.work.665-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org>
2025-11-19drm/plane: Fix create_in_format_blob() return valueVille Syrjälä1-2/+2
create_in_format_blob() is either supposed to return a valid pointer or an error, but never NULL. The caller will dereference the blob when it is not an error, and thus will oops if NULL returned. Return proper error values in the failure cases. Cc: stable@vger.kernel.org Cc: Arun R Murthy <arun.r.murthy@intel.com> Fixes: 0d6dcd741c26 ("drm/plane: modify create_in_formats to acommodate async") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patch.msgid.link/20251112233030.24117-2-ville.syrjala@linux.intel.com Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
2025-06-16drm: Include <linux/export.h>Thomas Zimmermann1-0/+1
Fix the compile-time warnings drivers/gpu/drm/drm_atomic.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_atomic_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_atomic_state_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_atomic_uapi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_auth.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_buddy.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_color_mgmt.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_connector.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_damage_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_debugfs_crc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_drv.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_edid.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_exec.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_fb_dma_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_file.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_flip_work.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_format_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_gpusvm.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_gpuvm.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_managed.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_mipi_dbi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_mipi_dsi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_mode_config.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_modeset_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_modeset_lock.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_panic.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_plane.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_plane_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_print.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_privacy_screen.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_self_refresh_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_simple_kms_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_suballoc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_syncobj.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_vblank_work.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_vma_manager.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/drm_writeback.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/lib/drm_random.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing drivers/gpu/drm/tests/drm_kunit_helpers.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") Reviewed-by: André Almeida <andrealmeid@igalia.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20250612121633.229222-3-tzimmermann@suse.de
2025-05-09drm/plane: modify create_in_formats to acommodate asyncArun R Murthy1-13/+31
create_in_formats creates the list of supported format/modifiers for synchronous flips, modify the same function so as to take the format_mod_supported as argument and create list of format/modifier for async as well. v5: create_in_formats can return -ve value in failure case, correct the if condition to check the creation of blob <Chaitanya> Dont add the modifier for which none of the formats is not supported. v6: Remove the code for masking the unsupported modifiers as UMD can leave with it. (Naveen/Chaitanya) v7: Retain the unsupported modifiers, userspace should have no impact, return pointer to blob instead of blob_id(Ville) Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> Acked-by: Xaver Hugl <xaver.hugl@kde.org> Acked-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: Naveen Kumar <naveen1.kumar@intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://lore.kernel.org/r/20250407-asyn-v13-2-b93ef83076c5@intel.com
2025-05-09drm/plane: Add new plane property IN_FORMATS_ASYNCArun R Murthy1-0/+8
There exists a property IN_FORMATS which exposes the plane supported modifiers/formats to the user. In some platforms when asynchronous flip are used all of modifiers/formats mentioned in IN_FORMATS are not supported. This patch adds a new plane property IN_FORMATS_ASYNC to expose the async flip supported modifiers/formats so that user can use this information ahead and do flip with unsupported formats/modifiers. This will save flip failures. Add a new function pointer similar to format_mod_supported specifically for asynchronous flip. v2: Remove async variable from drm_plane (Ville) v3: Add new function pointer for async (Ville) v5: Typo corrected in commit message & some correction in the kernel documentation. (Chaitanya) v7: Place IN_FORMATS_ASYNC next to IN_FORMATS (Ville) v8: replace uint32_t with u32 and uint64_t with u64 (Chaitanya) Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> Acked-by: Xaver Hugl <xaver.hugl@kde.org> Acked-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: Naveen Kumar <naveen1.kumar@intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://lore.kernel.org/r/20250407-asyn-v13-1-b93ef83076c5@intel.com
2024-06-24drm: Export drm_plane_has_format()Ville Syrjälä1-0/+10
Export drm_plane_has_format() so that drivers can use it. v2: add kerneldoc Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240619113144.1616-1-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
2024-06-24drm: Rename drm_plane_check_pixel_format() to drm_plane_has_format()Ville Syrjälä1-12/+10
Rename drm_plane_check_pixel_format() to drm_plane_has_format() and change the return type accordingly. Allows one to write more natural code. Also matches drm_any_plane_has_format() better. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240612204712.31404-2-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
2024-04-22drm: Fix plane SIZE_HINTS property docsVille Syrjälä1-1/+1
Fix the typos in the plane SIZE_HINTS kernel docs. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 9677547d8362 ("drm: Introduce plane SIZE_HINTS property") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240418114218.9162-1-ville.syrjala@linux.intel.com Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2024-04-11drm: Introduce plane SIZE_HINTS propertyVille Syrjälä1-0/+56
Add a new immutable plane property by which a plane can advertise a handful of recommended plane sizes. This would be mostly exposed by cursor planes as a slightly more capable replacement for the DRM_CAP_CURSOR_WIDTH/HEIGHT caps, which can only declare a one size fits all limit for the whole device. Currently eg. amdgpu/i915/nouveau just advertize the max cursor size via the cursor size caps. But always using the max sized cursor can waste a surprising amount of power, so a better strategy is desirable. Most other drivers don't specify any cursor size at all, in which case the ioctl code just claims that 64x64 is a great choice. Whether that is actually true is debatable. A poll of various compositor developers informs us that blindly probing with setcursor/atomic ioctl to determine suitable cursor sizes is not acceptable, thus the introduction of the new property to supplant the cursor size caps. The compositor will now be free to select a more optimal cursor size from the short list of options. Note that the reported sizes (either via the property or the caps) make no claims about things such as plane scaling. So these things should only really be consulted for simple "cursor like" use cases. Userspace consumer in the form of mutter seems ready: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3165 v2: Try to add some docs v3: Specify that value 0 is reserved for future use (basic idea from Jonas) Drop the note about typical hardware (Pekka) v4: Update the docs to indicate the list is "in order of preference" Add a a link to the mutter MR v5: Limit to cursors only for now (Simon) Cc: Jonas Ådahl <jadahl@redhat.com> Cc: Sameer Lattannavar <sameer.lattannavar@intel.com> Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com> Reviewed-by: Simon Ser <contact@emersion.fr> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240318204408.9687-2-ville.syrjala@linux.intel.com
2023-12-23drm: Don't unref the same fb many times by mistake due to deadlock handlingVille Syrjälä1-0/+1
If we get a deadlock after the fb lookup in drm_mode_page_flip_ioctl() we proceed to unref the fb and then retry the whole thing from the top. But we forget to reset the fb pointer back to NULL, and so if we then get another error during the retry, before the fb lookup, we proceed the unref the same fb again without having gotten another reference. The end result is that the fb will (eventually) end up being freed while it's still in use. Reset fb to NULL once we've unreffed it to avoid doing it again until we've done another fb lookup. This turned out to be pretty easy to hit on a DG2 when doing async flips (and CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y). The first symptom I saw that drm_closefb() simply got stuck in a busy loop while walking the framebuffer list. Fortunately I was able to convince it to oops instead, and from there it was easier to track down the culprit. Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231211081625.25704-1-ville.syrjala@linux.intel.com Acked-by: Javier Martinez Canillas <javierm@redhat.com>
2023-12-04Revert "drm: Introduce pixel_source DRM plane property"Dmitry Baryshkov1-15/+4
This reverts commit e50e5fed41c7eed2db4119645bf3480ec43fec11. Although the Solid Fill planes patchset got all reviews and acknowledgements, it doesn't fulfill requirements for the new uABI. It has neither corresponding open-source userspace implementation nor the IGT tests coverage. Reverting this patchset until userspace obligations are fulfilled. Acked-by: Simon Ser <contact@emersion.fr> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231204131455.19023-8-dmitry.baryshkov@linaro.org
2023-12-04Revert "drm/atomic: Add solid fill data to plane state dump"Dmitry Baryshkov1-8/+0
This reverts commit e86413f5442ee094e66b3e75f2d3419ed0df9520. Although the Solid Fill planes patchset got all reviews and acknowledgements, it doesn't fulfill requirements for the new uABI. It has neither corresponding open-source userspace implementation nor the IGT tests coverage. Reverting this patchset until userspace obligations are fulfilled. Acked-by: Simon Ser <contact@emersion.fr> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231204131455.19023-4-dmitry.baryshkov@linaro.org
2023-12-02drm/atomic: Add solid fill data to plane state dumpJessica Zhang1-0/+8
Add solid_fill property data to the atomic plane state dump. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Sebastian Wick <sebastian@sebastianwick.net> Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231027-solid-fill-v7-5-780188bfa7b2@quicinc.com
2023-12-02drm: Introduce pixel_source DRM plane propertyJessica Zhang1-4/+15
Add support for pixel_source property to drm_plane and related documentation. In addition, force pixel_source to DRM_PLANE_PIXEL_SOURCE_FB in DRM_IOCTL_MODE_SETPLANE as to not break legacy userspace. This enum property will allow user to specify a pixel source for the plane. Possible pixel sources will be defined in the drm_plane_pixel_source enum. Currently, the only pixel sources are DRM_PLANE_PIXEL_SOURCE_FB (the default value) and DRM_PLANE_PIXEL_SOURCE_NONE. Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Sebastian Wick <sebastian@sebastianwick.net> Acked-by: Simon Ser <contact@emersion.fr> Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231027-solid-fill-v7-1-780188bfa7b2@quicinc.com
2023-11-24drm/plane: Extend damage tracking kernel-docJavier Martinez Canillas1-0/+30
The "Damage Tracking Properties" section in the documentation doesn't have info about the two type of damage handling: frame damage vs buffer damage. Add it to the section and mention that helpers only support frame damage, and how drivers handling buffer damage can indicate that the damage clips should be ignored. Also add references to further documentation about the two damage types. Suggested-by: Simon Ser <contact@emersion.fr> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Simon Ser <contact@emersion.fr> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Zack Rusin <zackr@vmware.com> Acked-by: Sima Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20231123221315.3579454-5-javierm@redhat.com
2023-11-24drm: Introduce documentation for hotspot propertiesMichael Banack1-1/+57
To clarify the intent and reasoning behind the hotspot properties introduce userspace documentation that goes over cursor handling in para-virtualized environments. The documentation is generic enough to not special case for any specific hypervisor and should apply equally to all. Signed-off-by: Zack Rusin <zackr@vmware.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Michael Banack <banackm@vmware.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231023074613.41327-10-aesteve@redhat.com
2023-11-24drm: Remove legacy cursor hotspot codeZack Rusin1-3/+0
Atomic modesetting supports mouse cursor offsets via the hotspot properties that are created on cursor planes. All drivers which support hotspots are atomic and the legacy code has been implemented in terms of the atomic properties as well. Due to the above the lagacy cursor hotspot code is no longer used or needed and can be removed. Signed-off-by: Zack Rusin <zackr@vmware.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231023074613.41327-8-aesteve@redhat.com
2023-11-24drm/atomic: Add support for mouse hotspotsZack Rusin1-0/+50
Atomic modesetting code lacked support for specifying mouse cursor hotspots. The legacy kms DRM_IOCTL_MODE_CURSOR2 had support for setting the hotspot but the functionality was not implemented in the new atomic paths. Due to the lack of hotspots in the atomic paths userspace compositors completely disable atomic modesetting for drivers that require it (i.e. all paravirtualized drivers). This change adds hotspot properties to the atomic codepaths throughtout the DRM core and will allow enabling atomic modesetting for virtualized drivers in the userspace. Signed-off-by: Zack Rusin <zackr@vmware.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231023074613.41327-3-aesteve@redhat.com
2023-11-24drm: Disable the cursor plane on atomic contexts with virtualized driversZack Rusin1-0/+13
Cursor planes on virtualized drivers have special meaning and require that the clients handle them in specific ways, e.g. the cursor plane should react to the mouse movement the way a mouse cursor would be expected to and the client is required to set hotspot properties on it in order for the mouse events to be routed correctly. This breaks the contract as specified by the "universal planes". Fix it by disabling the cursor planes on virtualized drivers while adding a foundation on top of which it's possible to special case mouse cursor planes for clients that want it. Disabling the cursor planes makes some kms compositors which were broken, e.g. Weston, fallback to software cursor which works fine or at least better than currently while having no effect on others, e.g. gnome-shell or kwin, which put virtualized drivers on a deny-list when running in atomic context to make them fallback to legacy kms and avoid this issue. Signed-off-by: Zack Rusin <zackr@vmware.com> Fixes: 681e7ec73044 ("drm: Allow userspace to ask for universal plane list (v2)") Cc: <stable@vger.kernel.org> # v5.4+ Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Gurchetan Singh <gurchetansingh@chromium.org> Cc: Chia-I Wu <olvaffe@gmail.com> Cc: dri-devel@lists.freedesktop.org Cc: virtualization@lists.linux-foundation.org Cc: spice-devel@lists.freedesktop.org Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Simon Ser <contact@emersion.fr> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231023074613.41327-2-aesteve@redhat.com
2023-01-04drm/docs: Explicitly document default CRTC background behaviorSean Paul1-0/+5
Add a paragraph explaining that the default behavior for areas which are not covered by planes or where planes are blending with the CRTC background, is black. This is alluded to in the "pixel blend mode" property docs, but not called out explicitly. Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230103152738.1213785-1-sean@poorly.run
2022-09-20drm/plane: Allocate planes with drm_universal_plane_alloc()Thomas Zimmermann1-0/+38
Provide drm_univeral_plane_alloc() to allocate and initialize a plane. Code for non-atomic drivers uses this pattern. Convert them to the new function. The modeset helpers contain a quirk for handling their color formats differently. Set the flag outside plane allocation. The new function is already deprecated to some extend. Drivers should rather use drmm_univeral_plane_alloc() or drm_universal_plane_init(). v2: * kerneldoc fixes (Javier) * grammar fixes in commit message Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> # nouveau Link: https://patchwork.freedesktop.org/patch/msgid/20220909105947.6487-3-tzimmermann@suse.de
2022-09-20drm/plane: Remove drm_plane_init()Thomas Zimmermann1-32/+0
Open-code drm_plane_init() and remove the function from DRM. The implementation of drm_plane_init() is a simple wrapper around a call to drm_universal_plane_init(), so drivers can just use that instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Lyude Paul <lyude@redhat.com> # nouveau Acked-by: Jyri Sarha <jyri.sarha@iki.fi> Link: https://patchwork.freedesktop.org/patch/msgid/20220909105947.6487-2-tzimmermann@suse.de
2022-04-28drm/plane: Move range check for format_count earlierSteven Price1-7/+7
While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place. Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://lore.kernel.org/dri-devel/20211203102815.38624-1-steven.price@arm.com/
2022-01-31drm: add support modifiers for drivers whose planes only support linear layoutTomohito Esaki1-10/+13
The LINEAR modifier is advertised as default if a driver doesn't specify modifiers. v2: - rebase to the latest master branch (5.16.0+) + "drm/plane: Make format_mod_supported truly optional" patch [1] [1] https://patchwork.freedesktop.org/patch/467940/?series=98255&rev=3 v3: - change the order as follows: 1. add fb_modifiers_not_supported flag 2. add default modifiers 3. remove allow_fb_modifiers flag v5: - change default_modifiers array from non-static to static - remove terminator in default_modifiers array - use ARRAY_SIZE to get the format_modifier_count - update sanity check in plane init func to use the fb_modifiers_not_supported - modify kernel docs Signed-off-by: Tomohito Esaki <etom@igel.co.jp> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220128060836.11216-3-etom@igel.co.jp
2022-01-06drm/plane: Make format_mod_supported truly optionalJosé Expósito1-7/+2
The documentation for "drm_plane_funcs.format_mod_supported" reads: This *optional* hook is used for the DRM to determine if the given format/modifier combination is valid for the plane. This allows the DRM to generate the correct format bitmask (which formats apply to which modifier), and to validate modifiers at atomic_check time. *If not present*, then any modifier in the plane's modifier list is allowed with any of the plane's formats. However, where the function is not present, an invalid IN_FORMATS blob property with modifiers but no formats is exposed to user-space. This breaks the latest Weston [1]. For testing purposes, I extracted the affected code to a standalone program [2]. Make "create_in_format_blob" behave as documented. [1] https://gitlab.freedesktop.org/wayland/weston/-/blob/9.0/libweston/backend-drm/kms.c#L431 [2] https://github.com/JoseExposito/drm-sandbox/blob/main/in_formats.c Signed-off-by: José Expósito <jose.exposito89@gmail.com> Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20211226112503.31771-2-jose.exposito89@gmail.com
2021-08-02drm: Fix typo in commentsCai Huoqing1-1/+1
fix typo for drm v1->v2: respin with the change "iff ==> implies that" Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210730132729.376-1-caihuoqing@baidu.com
2021-07-27drm/plane: Move drm_plane_enable_fb_damage_clips into coreDaniel Vetter1-0/+54
We're trying to have a fairly strict split between core functionality that defines the uapi, including the docs, and the helper functions to implement it. Move drm_plane_enable_fb_damage_clips and associated kerneldoc into drm_plane from drm_damage_helper.c to fix this. Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210723083457.696939-3-daniel.vetter@ffwll.ch
2021-07-27drm/plane: check that fb_damage is set up when usedDaniel Vetter1-0/+50
There's two stages of manual upload/invalidate displays: - just handling dirtyfb and uploading the entire fb all the time - looking at damage clips In the latter case we support it through fbdev emulation (with fb_defio), atomic property, and with the dirtfy clip rects. Make sure at least the atomic property is set up as the main official interface for this. Ideally we'd also check that drm_atomic_helper_dirtyfb() is used and that fbdev defio is set up, but that's quite a bit harder to do. Ideas very much welcome. From a cursor audit drivers seem to be getting this right mostly, but better to make sure. At least no one is bypassing the accessor function. v2: - use drm_warn_once with a meaningful warning string (José) - don't splat in the atomic check code for everyone (intel-gfx-ci) Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210723083457.696939-2-daniel.vetter@ffwll.ch
2021-05-12drm/modifiers: Enforce consistency between the cap an IN_FORMATSDaniel Vetter1-1/+17
It's very confusing for userspace to have to deal with inconsistencies here, and some drivers screwed this up a bit. Most just ommitted the format list when they meant to say that only linear modifier is allowed, but some also meant that only implied modifiers are acceptable (because actually none of the planes registered supported modifiers). Now that this is all done consistently across all drivers, document the rules and enforce it in the drm core. v2: - Make the capability a link (Simon) - Note that all is lost before 5.1. v3: - Use drm_WARN_ON (Lyude) Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Cc: Simon Ser <contact@emersion.fr> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Cc: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210506132343.2873699-1-daniel.vetter@ffwll.ch
2021-03-16Merge tag 'drm-misc-next-2021-03-03' of ↵Dave Airlie1-10/+56
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.13: UAPI Changes: Cross-subsystem Changes: Core Changes: - %p4cc printk format modifier - atomic: introduce drm_crtc_commit_wait, rework atomic plane state helpers to take the drm_commit_state structure - dma-buf: heaps rework to return a struct dma_buf - simple-kms: Add plate state helpers - ttm: debugfs support, removal of sysfs Driver Changes: - Convert drivers to shadow plane helpers - arc: Move to drm/tiny - ast: cursor plane reworks - gma500: Remove TTM and medfield support - mxsfb: imx8mm support - panfrost: MMU IRQ handling rework - qxl: rework to better handle resources deallocation, locking - sun4i: Add alpha properties for UI and VI layers - vc4: RPi4 CEC support - vmwgfx: doc cleanup Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour
2021-02-17drm: Switch to %p4cc format modifierSakari Ailus1-6/+2
Switch DRM drivers from drm_get_format_name() to %p4cc. This gets rid of a large number of temporary variables at the same time. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210216155723.17109-4-sakari.ailus@linux.intel.com
2021-01-25Merge tag 'v5.11-rc5' of ↵Dave Airlie1-1/+8
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Backmerge v5.11-rc5 into drm-next to clean up a bunch of conflicts we are dragging around. Signed-off-by: Dave Airlie <airlied@redhat.com>
2021-01-24drm/doc: document the type plane propertySimon Ser1-4/+54
Add a new entry for "type" in the section for standard plane properties. v3: improve paragraph about mixing legacy IOCTLs with explicit usage, note that a driver may support cursors without cursor planes (Daniel) v4: fixing rebase gone wrong v5: - Fix typo (Daniel) - Mention CAP_ATOMIC instead of CAP_UNIVERSAL_PLANES when referring to atomic test-only commits (Daniel) - Add newlines at end of sections (Daniel) Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210115110626.12233-2-contact@emersion.fr
2021-01-12drm: Check actual format for legacy pageflip.Bas Nieuwenhuizen1-1/+8
With modifiers one can actually have different format_info structs for the same format, which now matters for AMDGPU since we convert implicit modifiers to explicit modifiers with multiple planes. I checked other drivers and it doesn't look like they end up triggering this case so I think this is safe to relax. Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Zhan Liu <zhan.liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Fixes: 816853f9dc40 ("drm/amd/display: Set new format info for converted metadata.") Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210110021142.28221-1-bas@basnieuwenhuizen.nl
2021-01-07Merge tag 'drm-misc-next-2021-01-06' of ↵Daniel Vetter1-0/+18
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.12: Core Changes: - Lots of drm documentation updates by Simor Ser. - Require that each crtc has a unique primary plane. - Add fixme that fbdev_generic_setup is confusing. Driver Changes: - Update addresses for TI display drivers maintainers. - Make DRM_VIRTIO_GPU select VIRTIO. - Small fixes to qxl, virtio, hisilicon, tve200, panel/s6e63m0. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/fdfbfd7a-b91d-3f59-11c8-984704ce0ee1@linux.intel.com
2021-01-07Merge tag 'imx-drm-next-2021-01-04' of ↵Daniel Vetter1-29/+105
git://git.pengutronix.de/git/pza/linux into drm-next drm/imx: fixes and drm managed resources - Reduce stack usage in ipu-di. - Fix imx-ldb for compile tests. - Make drm encoder control functions optional. - Add drm managed variants drmm_encoder_alloc(), drmm_simple_encoder_alloc(), drmm_universal_plane_alloc(), and drmm_crtc_alloc_with_planes() for drm_encoder_init(), drm_simple_encoder_init(), drm_universal_plane_init(), and drm_crtc_init_with_planes(), respectively. - Update imx-drm to use the new functions for drm managed resource allocation, moving initialization from bind to probe where possible. - Fix imx-tve clock provider leak. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> [danvet: Fix conflict between doc changes by both Philipp and Simon Ser, see 9999587b684f ("drm: rework description of primary and cursor planes")] From: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/c745fc1596898932c9454fd2979297b4242566a2.camel@pengutronix.de
2021-01-04drm/plane: add drmm_universal_plane_alloc()Philipp Zabel1-29/+105
Add an alternative to drm_universal_plane_init() that allocates and initializes a plane and registers drm_plane_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-12-17drm: require each CRTC to have a unique primary planeSimon Ser1-0/+6
User-space expects to be able to pick a primary plane for each CRTC exposed by the driver. Make sure this assumption holds in drm_mode_config_validate. Use the legacy drm_crtc.primary field to check this, because it's simpler and we require drivers to set it anyways. Accumulate a set of primary planes which are already used for a CRTC in a bitmask. Error out if a primary plane is re-used. v2: new patch v3: - Use u64 instead of __u64 (Jani) - Use `unsigned int` instead of `unsigned` (Jani) v4: - Use u32 instead of u64 for plane mask (Ville) - Use drm_plane_mask instead of BIT (Ville) - Fix typos (Ville) Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Acked-by: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Pekka Paalanen <ppaalanen@gmail.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201211184634.74534-4-contact@emersion.fr
2020-12-17drm/doc: fix reference to drm_format_modifier_blobSimon Ser1-3/+3
The documentation build system recognizes "struct XXX" references and generates links for them. Signed-off-by: Simon Ser <contact@emersion.fr> Cc: Pekka Paalanen <ppaalanen@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201217113220.102271-4-contact@emersion.fr
2020-12-17drm/doc: introduce new section for standard plane propertiesSimon Ser1-0/+12
Introduce a new "Standard Plane Properties" section for properties defined in drm_plane.c. Move the mis-placed IN_FORMATS docs there. Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Cc: Pekka Paalanen <ppaalanen@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201217113220.102271-3-contact@emersion.fr