kernel.git/drivers/gpu/drm/msm/msm_mdss.c, branch linux-rolling-stable

drm/msm/mdss: correct HBB programmed on UBWC 5.x and 6.x devices

2026-02-26T23:01:01Z

[ Upstream commit e6177c7a2401b87b016728b75992926971d871fc ] As in the previous generations, on UBWC 5.x and 6.x devices the Highest Bank Bit value should be programmed into the hardware with the offset of -13. Correct the value written into the register to prevent unpredictable results. Fixes: 227d4ce0b09e ("drm/msm: Offset MDSS HBB value by 13") Tested-by: Val Packett # x1e80100-dell-latitude-7455 Reviewed-by: Konrad Dybcio Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/699274/ Link: https://lore.kernel.org/r/20260119-msm-ubwc-fixes-v4-1-0987acc0427f@oss.qualcomm.com Signed-off-by: Sasha Levin

drm/msm: mdss: Add QCS8300 support

2025-11-14T14:59:27Z

Add Mobile Display Subsystem (MDSS) support for the QCS8300 platform. Reviewed-by: Dmitry Baryshkov Signed-off-by: Yongxing Mou Patchwork: https://patchwork.freedesktop.org/patch/684205/ Link: https://lore.kernel.org/r/20251029-qcs8300_mdss-v13-5-e8c8c4f82da2@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov

drm/msm/mdss: Add Glymur device configuration

2025-11-14T14:59:27Z

Add Mobile Display Subsystem (MDSS) support for the Glymur platform. Reviewed-by: Dmitry Baryshkov Signed-off-by: Abel Vesa Patchwork: https://patchwork.freedesktop.org/patch/683718/ Link: https://lore.kernel.org/r/20251027-glymur-display-v3-4-aa13055818ac@linaro.org Signed-off-by: Dmitry Baryshkov

drm/msm: use dev_fwnode()

2025-08-28T22:51:46Z

irq_domain_create_simple() takes fwnode as the first argument. It can be extracted from the struct device using dev_fwnode() helper instead of using of_node with of_fwnode_handle(). So use the dev_fwnode() helper. Signed-off-by: Jiri Slaby (SUSE) Cc: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Sean Paul Cc: Marijn Suijten Cc: David Airlie Cc: Simona Vetter Reviewed-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/665227/ Link: https://lore.kernel.org/r/20250723055512.1800438-1-jirislaby@kernel.org Signed-off-by: Dmitry Baryshkov

drm/msm: Don't use %pK through printk

2025-08-18T14:50:49Z

In the past %pK was preferable to %p as it would not leak raw pointer values into the kernel log. Since commit ad67b74d2469 ("printk: hash addresses printed with %p") the regular %p has been improved to avoid this issue. Furthermore, restricted pointers ("%pK") were never meant to be used through printk(). They can still unintentionally leak raw pointers or acquire sleeping locks in atomic contexts. Switch to the regular pointer formatting which is safer and easier to reason about. Signed-off-by: Thomas Weißschuh Reviewed-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/667895/ Signed-off-by: Rob Clark

drm/msm: Use the central UBWC config database

2025-07-05T00:48:39Z

As discussed a lot in the past, the UBWC config must be coherent across a number of IP blocks (currently display and GPU, but it also may/will concern camera/video as the drivers evolve). So far, we've been trying to keep the values reasonable in each of the two drivers separately, but it really make sense to do so centrally, especially given certain fields (e.g. HBB) may need to be gathered dynamically. To reduce room for error, move to fetching the config from a central source, so that the data programmed into the hardware is consistent across all multimedia blocks that request it. Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio Patchwork: https://patchwork.freedesktop.org/patch/660963/ Signed-off-by: Rob Clark

drm/msm: Offset MDSS HBB value by 13

2025-07-05T00:48:39Z

The Adreno part of the driver exposes this value to userspace, and the SMEM data source also presents a x+13 value. Keep things coherent and make the value uniform across them. Reviewed-by: Dmitry Baryshkov Signed-off-by: Konrad Dybcio Patchwork: https://patchwork.freedesktop.org/patch/660961/ Signed-off-by: Rob Clark

drm/msm/mdss: Add support for SM8750

2025-07-04T13:35:20Z

Add support for the Qualcomm SM8750 platform. Reviewed-by: Dmitry Baryshkov Signed-off-by: Krzysztof Kozlowski Patchwork: https://patchwork.freedesktop.org/patch/659625/ Link: https://lore.kernel.org/r/20250618-b4-sm8750-display-v7-13-a591c609743d@linaro.org Signed-off-by: Dmitry Baryshkov

Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel

2025-05-28T16:46:39Z

Pull drm updates from Dave Airlie: "As part of building up nova-core/nova-drm pieces we've brought in some rust abstractions through this tree, aux bus being the main one, with devres changes also in the driver-core tree. Along with the drm core abstractions and enough nova-core/nova-drm to use them. This is still all stub work under construction, to build the nova driver upstream. The other big NVIDIA related one is nouveau adds support for Hopper/Blackwell GPUs, this required a new GSP firmware update to 570.144, and a bunch of rework in order to support multiple fw interfaces. There is also the introduction of an asahi uapi header file as a precursor to getting the real driver in later, but to unblock userspace mesa packages while the driver is trapped behind rust enablement. Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe, and msm being the main ones, and some changes to vsprintf. new drivers: - bring in the asahi uapi header standalone - nova-drm: stub driver rust dependencies (for nova-core): - auxiliary - bus abstractions - driver registration - sample driver - devres changes from driver-core - revocable changes core: - add Apple fourcc modifiers - add virtio capset definitions - extend EXPORT_SYNC_FILE for timeline syncobjs - convert to devm_platform_ioremap_resource - refactor shmem helper page pinning - DP powerup/down link helpers - extended %p4cc in vsprintf.c to support fourcc prints - change vsprintf %p4cn to %p4chR, remove %p4cn - Add drm_file_err function - IN_FORMATS_ASYNC property - move sitronix from tiny to their own subdir rust: - add drm core infrastructure rust abstractions (device/driver, ioctl, file, gem) dma-buf: - adjust sg handling to not cache map on attach - allow setting dma-device for import - Add a helper to sort and deduplicate dma_fence arrays docs: - updated drm scheduler docs - fbdev todo update - fb rendering - actual brightness ttm: - fix delayed destroy resv object bridge: - add kunit tests - convert tc358775 to atomic - convert drivers to devm_drm_bridge_alloc - convert rk3066_hdmi to bridge driver scheduler: - add kunit tests panel: - refcount panels to improve lifetime handling - Powertip PH128800T004-ZZA01 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00 - Himax HX8279/HX8279-D DDIC - Visionox G2647FB105 - Sitronix ST7571 - ZOTAC rotation quirk vkms: - allow attaching more displays i915: - xe3lpd display updates - vrr refactor - intel_display struct conversions - xe2hpd memory type identification - add link rate/count to i915_display_info - cleanup VGA plane handling - refactor HDCP GSC - fix SLPC wait boosting reference counting - add 20ms delay to engine reset - fix fence release on early probe errors xe: - SRIOV updates - BMG PCI ID update - support separate firmware for each GT - SVM fix, prelim SVM multi-device work - export fan speed - temp disable d3cold on BMG - backup VRAM in PM notifier instead of suspend/freeze - update xe_ttm_access_memory to use GPU for non-visible access - fix guc_info debugfs for VFs - use copy_from_user instead of __copy_from_user - append PCIe gen5 limitations to xe_firmware document amdgpu: - DSC cleanup - DC Scaling updates - Fused I2C-over-AUX updates - DMUB updates - Use drm_file_err in amdgpu - Enforce isolation updates - Use new dma_fence helpers - USERQ fixes - Documentation updates - SR-IOV updates - RAS updates - PSP 12 cleanups - GC 9.5 updates - SMU 13.x updates - VCN / JPEG SR-IOV updates amdkfd: - Update error messages for SDMA - Userptr updates - XNACK fixes radeon: - CIK doorbell cleanup nouveau: - add support for NVIDIA r570 GSP firmware - enable Hopper/Blackwell support nova-core: - fix task list - register definition infrastructure - move firmware into own rust module - register auxiliary device for nova-drm nova-drm: - initial driver skeleton msm: - GPU: - ACD (adaptive clock distribution) for X1-85 - drop fictional address_space_size - improve GMU HFI response time out robustness - fix crash when throttling during boot - DPU: - use single CTL path for flushing on DPU 5.x+ - improve SSPP allocation code for better sharing - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550 - Added SAR2130P support - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660 - DP: - switch to new audio helpers - better LTTPR handling - DSI: - Added support for SA8775P - Added SAR2130P support - HDMI: - Switched to use new helpers for ACR data - Fixed old standing issue of HPD not working in some cases amdxdna: - add dma-buf support - allow empty command submits renesas: - add dma-buf support - add zpos, alpha, blend support panthor: - fail properly for NO_MMAP bos - add SET_LABEL ioctl - debugfs BO dumping support imagination: - update DT bindings - support TI AM68 GPU hibmc: - improve interrupt handling and HPD support virtio: - add panic handler support rockchip: - add RK3588 support - add DP AUX bus panel support ivpu: - add heartbeat based hangcheck mediatek: - prepares support for MT8195/99 HDMIv2/DDCv2 anx7625: - improve HPD tegra: - speed up firmware loading * tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits) drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr() drm/xe: Default auto_link_downgrade status to false drm/xe/guc: Make creation of SLPC debugfs files conditional drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue() drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read drm/i915/ptl: Use everywhere the correct DDI port clock select mask drm/nouveau/kms: add support for GB20x drm/dp: add option to disable zero sized address only transactions. drm/nouveau: add support for GB20x drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle drm/nouveau: add support for GB10x drm/nouveau/gf100-: track chan progress with non-WFI semaphore release drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos drm/nouveau: add support for GH100 drm/nouveau: improve handling of 64-bit BARs drm/nouveau/gv100-: switch to volta semaphore methods drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM ...

gpu: Switch to irq_domain_create_linear()

2025-05-16T19:06:09Z

irq_domain_add_linear() is going away as being obsolete now. Switch to the preferred irq_domain_create_linear(). That differs in the first parameter: It takes more generic struct fwnode_handle instead of struct device_node. Therefore, of_fwnode_handle() is added around the parameter. Note some of the users can likely use dev->fwnode directly instead of indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not guaranteed to be set for all, so this has to be investigated on case to case basis (by people who can actually test with the HW). [ tglx: Fix up subject prefix ] Signed-off-by: Jiri Slaby (SUSE) Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250319092951.37667-19-jirislaby@kernel.org