kernel/linux.git/drivers/gpu/drm/panfrost, branch v6.18.34

drm/panfrost: Fix wait_bo ioctl leaking positive return from dma_resv_wait_timeout()

2026-05-23T11:07:19+00:00

commit 459d75523b71c0ec254d153d8850d0b7008af396 upstream. dma_resv_wait_timeout() returns a positive 'remaining jiffies' value on success, 0 on timeout, and -errno on failure. panfrost_ioctl_wait_bo() returns this 'long' result from an int-typed ioctl handler, so positive values reach userspace as bogus errors. Explicitly set ret to 0 on the success path. Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver") Cc: stable@vger.kernel.org Signed-off-by: Gyeyoung Baek Reviewed-by: Adrián Larumbe Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Link: https://patch.msgid.link/fe33f82fded7be1c18e2e0eb2db451d5a738cf39.1776581974.git.gye976@gmail.com Signed-off-by: Steven Price Signed-off-by: Greg Kroah-Hartman

Merge drm/drm-next into drm-misc-next

2025-08-20T07:33:06+00:00

Bring v6.17-rc2 in to unstuck for-linux-next. Signed-off-by: Maxime Ripard

drm/panfrost: Remove redundant pm_runtime_mark_last_busy() calls

2025-08-15T14:14:07+00:00

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus Reviewed-by: Steven Price Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250704075411.3218059-1-sakari.ailus@linux.intel.com

Merge tag 'drm-misc-next-fixes-2025-08-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

2025-08-13T21:51:34+00:00

Short summary of fixes pull: bridge: - fix OF-node leak - fix documentation fbdev-emulation: - pass correct format info to drm_helper_mode_fill_fb_struct() panfrost: - print correct RSS size Signed-off-by: Dave Airlie From: Thomas Zimmermann Link: https://lore.kernel.org/r/20250812064712.GA14554@2a02-2454-fd5e-fd00-2c49-c639-c55f-a125.dyn6.pyur.net

drm/panfrost: Print RSS for tiler heap BO's in debugfs GEMS file

2025-08-12T06:31:47+00:00

Otherwise it would display the virtual allocation size, which is often much bigger than the RSS. Signed-off-by: Adrián Larumbe Fixes: e48ade5e23ba ("drm/panfrost: show device-wide list of DRM GEM objects over DebugFS") Tested-by: Christopher Healy Reviewed-by: Daniel Stone Signed-off-by: Thomas Zimmermann Link: https://lore.kernel.org/r/20250808010235.2831853-1-adrian.larumbe@collabora.com

Merge tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel

2025-07-31T02:26:49+00:00

Pull drm updates from Dave Airlie: "Highlights: - Intel xe enable Panthor Lake, started adding WildCat Lake - amdgpu has a bunch of reset improvments along with the usual IP updates - msm got VM_BIND support which is important for vulkan sparse memory - more drm_panic users - gpusvm common code to handle a bunch of core SVM work outside drivers. Detail summary: Changes outside drm subdirectory: - 'shrink_shmem_memory()' for better shmem/hibernate interaction - Rust support infrastructure: - make ETIMEDOUT available - add size constants up to SZ_2G - add DMA coherent allocation bindings - mtd driver for Intel GPU non-volatile storage - i2c designware quirk for Intel xe core: - atomic helpers: tune enable/disable sequences - add task info to wedge API - refactor EDID quirks - connector: move HDR sink to drm_display_info - fourcc: half-float and 32-bit float formats - mode_config: pass format info to simplify dma-buf: - heaps: Give CMA heap a stable name ci: - add device tree validation and kunit displayport: - change AUX DPCD access probe address - add quirk for DPCD probe - add panel replay definitions - backlight control helpers fbdev: - make CONFIG_FIRMWARE_EDID available on all arches fence: - fix UAF issues format-helper: - improve tests gpusvm: - introduce devmem only flag for allocation - add timeslicing support to GPU SVM ttm: - improve eviction sched: - tracing improvements - kunit improvements - memory leak fixes - reset handling improvements color mgmt: - add hardware gamma LUT handling helpers bridge: - add destroy hook - switch to reference counted drm_bridge allocations - tc358767: convert to devm_drm_bridge_alloc - improve CEC handling panel: - switch to reference counter drm_panel allocations - fwnode panel lookup - Huiling hl055fhv028c support - Raspberry Pi 7" 720x1280 support - edp: KDC KD116N3730A05, N160JCE-ELL CMN, N116BCJ-EAK - simple: AUO P238HAN01 - st7701: Winstar wf40eswaa6mnn0 - visionox: rm69299-shift - Renesas R61307, Renesas R69328 support - DJN HX83112B hdmi: - add CEC handling - YUV420 output support xe: - WildCat Lake support - Enable PanthorLake by default - mark BMG as SRIOV capable - update firmware recommendations - Expose media OA units - aux-bux support for non-volatile memory - MTD intel-dg driver for non-volatile memory - Expose fan control and voltage regulator in sysfs - restructure migration for multi-device - Restore GuC submit UAF fix - make GEM shrinker drm managed - SRIOV VF Post-migration recovery of GGTT nodes - W/A additions/reworks - Prefetch support for svm ranges - Don't allocate managed BO for each policy change - HWMON fixes for BMG - Create LRC BO without VM - PCI ID updates - make SLPC debugfs files optional - rework eviction rejection of bound external BOs - consolidate PAT programming logic for pre/post Xe2 - init changes for flicker-free boot - Enable GuC Dynamic Inhibit Context switch i915: - drm_panic support for i915/xe - initial flip queue off by default for LNL/PNL - Wildcat Lake Display support - Support for DSC fractional link bpp - Support for simultaneous Panel Replay and Adaptive sync - Support for PTL+ double buffer LUT - initial PIPEDMC event handling - drm_panel_follower support - DPLL interface renames - allocate struct intel_display dynamically - flip queue preperation - abstract DRAM detection better - avoid GuC scheduling stalls - remove DG1 force probe requirement - fix MEI interrupt handler on RT kernels - use backlight control helpers for eDP - more shared display code refactoring amdgpu: - add userq slot to INFO ioctl - SR-IOV hibernation support - Suspend improvements - Backlight improvements - Use scaling for non-native eDP modes - cleaner shader updates for GC 9.x - Remove fence slab - SDMA fw checks for userq support - RAS updates - DMCUB updates - DP tunneling fixes - Display idle D3 support - Per queue reset improvements - initial smartmux support amdkfd: - enable KFD on loongarch - mtype fix for ext coherent system memory radeon: - CS validation additional GL extensions - drop console lock during suspend/resume - bump driver version msm: - VM BIND support - CI: infrastructure updates - UBWC single source of truth - decouple GPU and KMS support - DP: rework I/O accessors - DPU: SM8750 support - DSI: SM8750 support - GPU: X1-45 support and speedbin support for X1-85 - MDSS: SM8750 support nova: - register! macro improvements - DMA object abstraction - VBIOS parser + fwsec lookup - sysmem flush page support - falcon: generic falcon boot code and HAL - FWSEC-FRTS: fb setup and load/execute ivpu: - Add Wildcat Lake support - Add turbo flag ast: - improve hardware generations implementation imx: - IMX8qxq Display Controller support lima: - Rockchip RK3528 GPU support nouveau: - fence handling cleanup panfrost: - MT8370 support - bo labeling - 64-bit register access qaic: - add RAS support rockchip: - convert inno_hdmi to a bridge rz-du: - add RZ/V2H(P) support - MIPI-DSI DCS support sitronix: - ST7567 support sun4i: - add H616 support tidss: - add TI AM62L support - AM65x OLDI bridge support bochs: - drm panic support vkms: - YUV and R* format support - use faux device vmwgfx: - fence improvements hyperv: - move out of simple - add drm_panic support" * tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel: (1479 commits) drm/tidss: oldi: convert to devm_drm_bridge_alloc() API drm/tidss: encoder: convert to devm_drm_bridge_alloc() drm/amdgpu: move reset support type checks into the caller drm/amdgpu/sdma7: re-emit unprocessed state on ring reset drm/amdgpu/sdma6: re-emit unprocessed state on ring reset drm/amdgpu/sdma5.2: re-emit unprocessed state on ring reset drm/amdgpu/sdma5: re-emit unprocessed state on ring reset drm/amdgpu/gfx12: re-emit unprocessed state on ring reset drm/amdgpu/gfx11: re-emit unprocessed state on ring reset drm/amdgpu/gfx10: re-emit unprocessed state on ring reset drm/amdgpu/gfx9.4.3: re-emit unprocessed state on kcq reset drm/amdgpu/gfx9: re-emit unprocessed state on kcq reset drm/amdgpu: Add WARN_ON to the resource clear function drm/amd/pm: Use cached metrics data on SMUv13.0.6 drm/amd/pm: Use cached data for min/max clocks gpu: nova-core: fix bounds check in PmuLookupTableEntry::new drm/amdgpu: Replace HQD terminology with slots naming drm/amdgpu: Add user queue instance count in HW IP info drm/amd/amdgpu: Add helper functions for isp buffers drm/amd/amdgpu: Initialize swnode for ISP MFD device ...

drm/panfrost: Use DRM_GPU_SCHED_STAT_NO_HANG to skip the reset

2025-07-15T11:27:08+00:00

Panfrost can skip the reset if TDR has fired before the free-job worker. Currently, since Panfrost doesn't take any action on these scenarios, the job is being leaked, considering that `free_job()` won't be called. To avoid such leaks, inform the scheduler that the job did not actually timeout and no reset was performed through the new status code DRM_GPU_SCHED_STAT_NO_HANG. Reviewed-by: Steven Price Link: https://lore.kernel.org/r/20250714-sched-skip-reset-v6-8-5c5ba4f55039@igalia.com Signed-off-by: Maíra Canal

drm/sched: Rename DRM_GPU_SCHED_STAT_NOMINAL to DRM_GPU_SCHED_STAT_RESET

2025-07-15T11:27:00+00:00

Among the scheduler's statuses, the only one that indicates an error is DRM_GPU_SCHED_STAT_ENODEV. Any status other than DRM_GPU_SCHED_STAT_ENODEV signifies that the operation succeeded and the GPU is in a nominal state. However, to provide more information about the GPU's status, it is needed to convey more information than just "OK". Therefore, rename DRM_GPU_SCHED_STAT_NOMINAL to DRM_GPU_SCHED_STAT_RESET, which better communicates the meaning of this status. The status DRM_GPU_SCHED_STAT_RESET indicates that the GPU has hung, but it has been successfully reset and is now in a nominal state again. Reviewed-by: Philipp Stanner Link: https://lore.kernel.org/r/20250714-sched-skip-reset-v6-1-5c5ba4f55039@igalia.com Signed-off-by: Maíra Canal

drm/panfrost: Fix scheduler workqueue bug

2025-07-14T15:49:10+00:00

When the GPU scheduler was ported to using a struct for its initialization parameters, it was overlooked that panfrost creates a distinct workqueue for timeout handling. The pointer to this new workqueue is not initialized to the struct, resulting in NULL being passed to the scheduler, which then uses the system_wq for timeout handling. Set the correct workqueue to the init args struct. Cc: stable@vger.kernel.org # 6.15+ Fixes: 796a9f55a8d1 ("drm/sched: Use struct for drm_sched_init() params") Reported-by: Tvrtko Ursulin Closes: https://lore.kernel.org/dri-devel/b5d0921c-7cbf-4d55-aa47-c35cd7861c02@igalia.com/ Signed-off-by: Philipp Stanner Reviewed-by: Tvrtko Ursulin Reviewed-by: Steven Price Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250709102957.100849-2-phasta@kernel.org

drm/panfrost: Add support for Mali on the MT8370 SoC

2025-06-20T14:49:25+00:00

Add a compatible for the MediaTek MT8370 SoC, with an integrated ARM Mali G57 MC2 GPU (Valhall-JM, dual core), with new platform data for its support in the panfrost driver. It uses the same data as MT8186 for the power management features to describe power supplies, pm_domains and enablement (one regulator, two power domains) but also sets the FORCE_AARCH64_PGTABLE flag in the GPU configuration quirks bitfield to enable AARCH64 4K page table format mode. As MT8186 and MT8370 SoC have different GPU architecture (Mali G52 2EE MC2 for MT8186), making them not compatible, and this mode is only enabled for Mediatek SoC that are Mali G57 based (compatible with mediatek,mali-mt8188 or mediatek,mali-8192), having specific platform data allows to set this flag for MT8370 without modifying MT8186 configuration and behaviour. Reviewed-by: Steven Price Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Louis-Alexis Eyraud Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250509-mt8370-enable-gpu-v6-4-2833888cb1d3@collabora.com