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2 daysMerge tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
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 ...
2025-07-09drm/ast: Gen7: Switch default registers to gen4+ stateThomas Zimmermann
Change the default register settings for Gen7 to mach Gen4 and later. Gen7 currently uses the settings for Gen1, which is most likely incorrect. Using Gen4+ settings enables E2M linear-access modes in VGACRA2. It appears to be related to the chip's PCIE2MBOX feature, which is unused. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-11-tzimmermann@suse.de
2025-07-09drm/ast: Gen7: Disable VGASR0[1] as on Gen4+Thomas Zimmermann
Set VGACRB6[5], which disables asynchronous sequencer resets via VGASR0[1]. This was most likely an oversight when adding support for Gen7. Aligns Gen7 with the earlier Gen4+. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-10-tzimmermann@suse.de
2025-07-09drm/ast: Split ast_set_def_ext_reg() by chip generationThomas Zimmermann
Duplicate ast_set_def_ext_reg() for individual chip generations and move call it into per-chip source files. Remove the original code. AST2100 and AST2500 reuse the function from earlier chips. AST2600 appears to be incorrect as it uses an older function. Keep this behavior for now. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-9-tzimmermann@suse.de
2025-07-09drm/ast: Handle known struct ast_dramstruct with helpersThomas Zimmermann
Most of struct ast_dramstruct stores hardware state. Some index values have known or special meaning. The known values are - 0xffff - Terminal entry in the array - 0xff00 - Delays the programming for usecs - 0x0004 - Sets the type of DRAM Add constants and helper macros for these cases. Also add a helper macro for testing. Update Gen1 and Gen2+ accordingly. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-8-tzimmermann@suse.de
2025-07-09drm/ast: Move struct ast_dramstruct to ast_post.hThomas Zimmermann
Declare struct ast_dramstruct in ast_post.h and remove its original header file. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-7-tzimmermann@suse.de
2025-07-09drm/ast: Move Gen2+ and Gen1 POST code to separate source filesThomas Zimmermann
Move POST code for Gen2+ and Gen1 to separate source files and hide it in ast_2100_post() ans ast_2000_post(). With P2A configuration, the POST logic for these chip generations has been mingled in ast_init_dram_reg(). Hence, handle all generations in a single change. The split simplifies both cases. Also move the DRAM init tables for each Gen into the respective source file. No changes to the overall logic. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-6-tzimmermann@suse.de
2025-07-09drm/ast: Move Gen4+ POST code to separate source fileThomas Zimmermann
Move POST code for Gen4+ to separate source file and hide it in ast_2300_post(). With P2A configuration, it performs a full board POST and enables the transmitter chip; otherwise it only enables the transmitter chip. Also fix coding style in several places. No changes to the overall logic. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-5-tzimmermann@suse.de
2025-07-09drm/ast: Move Gen6+ POST code to separate source fileThomas Zimmermann
Move POST code for Gen6+ to separate source file and hide it in ast_2500_post(). With P2A configuration, it performs a full board POST; otherwise it enables the transmitter chip. No changes to the overall logic. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-4-tzimmermann@suse.de
2025-07-09drm/ast: Move Gen7+ POST code to separate source fileThomas Zimmermann
Move POST code for Gen7+ to separate source file and hide it in ast_2600_post(). There's not much going on here except for enabling the DP transmitter chip. v2: - simplify logic (Jocelyn) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-3-tzimmermann@suse.de
2025-07-09drm/ast: Declare helpers for POST in headerThomas Zimmermann
Provide POST helpers in header file before splitting up the AST POST code. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250706162816.211552-2-tzimmermann@suse.de
2025-07-07drm/gem-shmem: Do not map s/g table by defaultThomas Zimmermann
The vast majority of drivers that use GEM-SHMEM helpers do not use an s/g table for imported buffers; specifically all drivers that use DRM_GEM_SHMEM_DRIVER_OPS. Therefore convert the initializer macro to DRM_GEM_SHMEM_DRIVER_OPS_NO_MAP_SGT and remove the latter. This helps to avoid swiotbl errors, such as seen with some Aspeed systems ast 0000:07:00.0: swiotlb buffer is full (sz: 3145728 bytes), total 32768 (slots), used 0 (slots) The error is caused by the system's limited DMA capabilities and can happen with any GEM-SHMEM-based driver. It results in a performance penalty. In the case of vgem and vkms, the devices do not support DMA at all, which can result in failure to map the buffer object into the kernel's address space. [1][2] Avoiding the s/g table fixes this problem. The other drivers based on GEM-SHMEM, imagination, lima, panfrost, panthor, v3d and virtio, use the s/g table of imported buffers. Neither driver uses the default initializer, so they won't be affected by this change. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reported-by: Zenghui Yu <zenghui.yu@linux.dev> Closes: https://lore.kernel.org/dri-devel/6d22bce3-4533-4cfa-96ba-64352b715741@linux.dev/ # [1] Reported-by: José Expósito <jose.exposito89@gmail.com> Closes: https://lore.kernel.org/dri-devel/20250311172054.2903-1-jose.exposito89@gmail.com/ # [2] Tested-by: Zenghui Yu <zenghui.yu@linux.dev> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Link: https://lore.kernel.org/r/20250630143537.309052-1-tzimmermann@suse.de
2025-06-13drm/ast: Do not include <linux/export.h>Thomas Zimmermann
Fix the compile-time warning drivers/gpu/drm/ast/ast_mode.c: warning: EXPORT_SYMBOL() is not used, but #include <linux/export.h> is present Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250612084257.200907-1-tzimmermann@suse.de
2025-06-11Merge drm/drm-next into drm-misc-nextThomas Zimmermann
Backmerging to forward to v6.16-rc1 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2025-06-04Merge tag 'pci-v6.16-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Print the actual delay time in pci_bridge_wait_for_secondary_bus() instead of assuming it was 1000ms (Wilfred Mallawa) - Revert 'iommu/amd: Prevent binding other PCI drivers to IOMMU PCI devices', which broke resume from system sleep on AMD platforms and has been fixed by other commits (Lukas Wunner) Resource management: - Remove mtip32xx use of pcim_iounmap_regions(), which is deprecated and unnecessary (Philipp Stanner) - Remove pcim_iounmap_regions() and pcim_request_region_exclusive() and related flags since all uses have been removed (Philipp Stanner) - Rework devres 'request' functions so they are no longer 'hybrid', i.e., their behavior no longer depends on whether pcim_enable_device or pci_enable_device() was used, and remove related code (Philipp Stanner) - Warn (not BUG()) about failure to assign optional resources (Ilpo Järvinen) Error handling: - Log the DPC Error Source ID only when it's actually valid (when ERR_FATAL or ERR_NONFATAL was received from a downstream device) and decode into bus/device/function (Bjorn Helgaas) - Determine AER log level once and save it so all related messages use the same level (Karolina Stolarek) - Use KERN_WARNING, not KERN_ERR, when logging PCIe Correctable Errors (Karolina Stolarek) - Ratelimit PCIe Correctable and Non-Fatal error logging, with sysfs controls on interval and burst count, to avoid flooding logs and RCU stall warnings (Jon Pan-Doh) Power management: - Increment PM usage counter when probing reset methods so we don't try to read config space of a powered-off device (Alex Williamson) - Set all devices to D0 during enumeration to ensure ACPI opregion is connected via _REG (Mario Limonciello) Power control: - Rename pwrctrl Kconfig symbols from 'PWRCTL' to 'PWRCTRL' to match the filename paths. Retain old deprecated symbols for compatibility, except for the pwrctrl slot driver (PCI_PWRCTRL_SLOT) (Johan Hovold) - When unregistering pwrctrl, cancel outstanding rescan work before cleaning up data structures to avoid use-after-free issues (Brian Norris) Bandwidth control: - Simplify link bandwidth controller by replacing the count of Link Bandwidth Management Status (LBMS) events with a PCI_LINK_LBMS_SEEN flag (Ilpo Järvinen) - Update the Link Speed after retraining, since the Link Speed may have changed (Ilpo Järvinen) PCIe native device hotplug: - Ignore Presence Detect Changed caused by DPC. pciehp already ignores Link Down/Up events caused by DPC, but on slots using in-band presence detect, DPC causes a spurious Presence Detect Changed event (Lukas Wunner) - Ignore Link Down/Up caused by Secondary Bus Reset. On hotplug ports using in-band presence detect, the reset causes a Presence Detect Changed event, which mistakenly caused teardown and re-enumeration of the device. Drivers may need to annotate code that resets their device (Lukas Wunner) Virtualization: - Add an ACS quirk for Loongson Root Ports that don't advertise ACS but don't allow peer-to-peer transactions between Root Ports; the quirk allows each Root Port to be in a separate IOMMU group (Huacai Chen) Endpoint framework: - For fixed-size BARs, retain both the actual size and the possibly larger size allocated to accommodate iATU alignment requirements (Jerome Brunet) - Simplify ctrl/SPAD space allocation and avoid allocating more space than needed (Jerome Brunet) - Correct MSI-X PBA offset calculations for DesignWare and Cadence endpoint controllers (Niklas Cassel) - Align the return value (number of interrupts) encoding for pci_epc_get_msi()/pci_epc_ops::get_msi() and pci_epc_get_msix()/pci_epc_ops::get_msix() (Niklas Cassel) - Align the nr_irqs parameter encoding for pci_epc_set_msi()/pci_epc_ops::set_msi() and pci_epc_set_msix()/pci_epc_ops::set_msix() (Niklas Cassel) Common host controller library: - Convert pci-host-common to a library so platforms that don't need native host controller drivers don't need to include these helper functions (Manivannan Sadhasivam) Apple PCIe controller driver: - Extract ECAM bridge creation helper from pci_host_common_probe() to separate driver-specific things like MSI from PCI things (Marc Zyngier) - Dynamically allocate RID-to_SID bitmap to prepare for SoCs with varying capabilities (Marc Zyngier) - Skip ports disabled in DT when setting up ports (Janne Grunau) - Add t6020 compatible string (Alyssa Rosenzweig) - Add T602x PCIe support (Hector Martin) - Directly set/clear INTx mask bits because T602x dropped the accessors that could do this without locking (Marc Zyngier) - Move port PHY registers to their own reg items to accommodate T602x, which moves them around; retain default offsets for existing DTs that lack phy%d entries with the reg offsets (Hector Martin) - Stop polling for core refclk, which doesn't work on T602x and the bootloader has already done anyway (Hector Martin) - Use gpiod_set_value_cansleep() when asserting PERST# in probe because we're allowed to sleep there (Hector Martin) Cadence PCIe controller driver: - Drop a runtime PM 'put' to resolve a runtime atomic count underflow (Hans Zhang) - Make the cadence core buildable as a module (Kishon Vijay Abraham I) - Add cdns_pcie_host_disable() and cdns_pcie_ep_disable() for use by loadable drivers when they are removed (Siddharth Vadapalli) Freescale i.MX6 PCIe controller driver: - Apply link training workaround only on IMX6Q, IMX6SX, IMX6SP (Richard Zhu) - Remove redundant dw_pcie_wait_for_link() from imx_pcie_start_link(); since the DWC core does this, imx6 only needs it when retraining for a faster link speed (Richard Zhu) - Toggle i.MX95 core reset to align with PHY powerup (Richard Zhu) - Set SYS_AUX_PWR_DET to work around i.MX95 ERR051624 erratum: in some cases, the controller can't exit 'L23 Ready' through Beacon or PERST# deassertion (Richard Zhu) - Clear GEN3_ZRXDC_NONCOMPL to work around i.MX95 ERR051586 erratum: controller can't meet 2.5 GT/s ZRX-DC timing when operating at 8 GT/s, causing timeouts in L1 (Richard Zhu) - Wait for i.MX95 PLL lock before enabling controller (Richard Zhu) - Save/restore i.MX95 LUT for suspend/resume (Richard Zhu) Mobiveil PCIe controller driver: - Return bool (not int) for link-up check in mobiveil_pab_ops.link_up() and layerscape-gen4, mobiveil (Hans Zhang) NVIDIA Tegra194 PCIe controller driver: - Create debugfs directory for 'aspm_state_cnt' only when CONFIG_PCIEASPM is enabled, since there are no other entries (Hans Zhang) Qualcomm PCIe controller driver: - Add OF support for parsing DT 'eq-presets-<N>gts' property for lane equalization presets (Krishna Chaitanya Chundru) - Read Maximum Link Width from the Link Capabilities register if DT lacks 'num-lanes' property (Krishna Chaitanya Chundru) - Add Physical Layer 64 GT/s Capability ID and register offsets for 8, 32, and 64 GT/s lane equalization registers (Krishna Chaitanya Chundru) - Add generic dwc support for configuring lane equalization presets (Krishna Chaitanya Chundru) - Add DT and driver support for PCIe on IPQ5018 SoC (Nitheesh Sekar) Renesas R-Car PCIe controller driver: - Describe endpoint BAR 4 as being fixed size (Jerome Brunet) - Document how to obtain R-Car V4H (r8a779g0) controller firmware (Yoshihiro Shimoda) Rockchip PCIe controller driver: - Reorder rockchip_pci_core_rsts because reset_control_bulk_deassert() deasserts in reverse order, to fix a link training regression (Jensen Huang) - Mark RK3399 as being capable of raising INTx interrupts (Niklas Cassel) Rockchip DesignWare PCIe controller driver: - Check only PCIE_LINKUP, not LTSSM status, to determine whether the link is up (Shawn Lin) - Increase N_FTS (used in L0s->L0 transitions) and enable ASPM L0s for Root Complex and Endpoint modes (Shawn Lin) - Hide the broken ATS Capability in rockchip_pcie_ep_init() instead of rockchip_pcie_ep_pre_init() so it stays hidden after PERST# resets non-sticky registers (Shawn Lin) - Call phy_power_off() before phy_exit() in rockchip_pcie_phy_deinit() (Diederik de Haas) Synopsys DesignWare PCIe controller driver: - Set PORT_LOGIC_LINK_WIDTH to one lane to make initial link training more robust; this will not affect the intended link width if all lanes are functional (Wenbin Yao) - Return bool (not int) for link-up check in dw_pcie_ops.link_up() and armada8k, dra7xx, dw-rockchip, exynos, histb, keembay, keystone, kirin, meson, qcom, qcom-ep, rcar_gen4, spear13xx, tegra194, uniphier, visconti (Hans Zhang) - Add debugfs support for exposing DWC device-specific PTM context (Manivannan Sadhasivam) TI J721E PCIe driver: - Make j721e buildable as a loadable and removable module (Siddharth Vadapalli) - Fix j721e host/endpoint dependencies that result in link failures in some configs (Arnd Bergmann) Device tree bindings: - Add qcom DT binding for 'global' interrupt (PCIe controller and link-specific events) for ipq8074, ipq8074-gen3, ipq6018, sa8775p, sc7280, sc8180x sdm845, sm8150, sm8250, sm8350 (Manivannan Sadhasivam) - Add qcom DT binding for 8 MSI SPI interrupts for msm8998, ipq8074, ipq8074-gen3, ipq6018 (Manivannan Sadhasivam) - Add dw rockchip DT binding for rk3576 and rk3562 (Kever Yang) - Correct indentation and style of examples in brcm,stb-pcie, cdns,cdns-pcie-ep, intel,keembay-pcie-ep, intel,keembay-pcie, microchip,pcie-host, rcar-pci-ep, rcar-pci-host, xilinx-versal-cpm (Krzysztof Kozlowski) - Convert Marvell EBU (dove, kirkwood, armada-370, armada-xp) and armada8k from text to schema DT bindings (Rob Herring) - Remove obsolete .txt DT bindings for content that has been moved to schemas (Rob Herring) - Add qcom DT binding for MHI registers in IPQ5332, IPQ6018, IPQ8074 and IPQ9574 (Varadarajan Narayanan) - Convert v3,v360epc-pci from text to DT schema binding (Rob Herring) - Change microchip,pcie-host DT binding to be 'dma-noncoherent' since PolarFire may be configured that way (Conor Dooley) Miscellaneous: - Drop 'pci' suffix from intel_mid_pci.c filename to match similar files (Andy Shevchenko) - All platforms with PCI have an MMU, so add PCI Kconfig dependency on MMU to simplify build testing and avoid inadvertent build regressions (Arnd Bergmann) - Update Krzysztof Wilczyński's email address in MAINTAINERS (Krzysztof Wilczyński) - Update Manivannan Sadhasivam's email address in MAINTAINERS (Manivannan Sadhasivam)" * tag 'pci-v6.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (147 commits) MAINTAINERS: Update Manivannan Sadhasivam email address PCI: j721e: Fix host/endpoint dependencies PCI: j721e: Add support to build as a loadable module PCI: cadence-ep: Introduce cdns_pcie_ep_disable() helper for cleanup PCI: cadence-host: Introduce cdns_pcie_host_disable() helper for cleanup PCI: cadence: Add support to build pcie-cadence library as a kernel module MAINTAINERS: Update Krzysztof Wilczyński email address PCI: Remove unnecessary linesplit in __pci_setup_bridge() PCI: WARN (not BUG()) when we fail to assign optional resources PCI: Remove unused pci_printk() PCI: qcom: Replace PERST# sleep time with proper macro PCI: dw-rockchip: Replace PERST# sleep time with proper macro PCI: host-common: Convert to library for host controller drivers PCI/ERR: Remove misleading TODO regarding kernel panic PCI: cadence: Remove duplicate message code definitions PCI: endpoint: Align pci_epc_set_msix(), pci_epc_ops::set_msix() nr_irqs encoding PCI: endpoint: Align pci_epc_set_msi(), pci_epc_ops::set_msi() nr_irqs encoding PCI: endpoint: Align pci_epc_get_msix(), pci_epc_ops::get_msix() return value encoding PCI: endpoint: Align pci_epc_get_msi(), pci_epc_ops::get_msi() return value encoding PCI: cadence-ep: Correct PBA offset in .set_msix() callback ...
2025-06-03drm/ast: use DRM_GEM_SHMEM_DRIVER_OPS_NO_MAP_SGTShixiong Ou
Import dmabuf without mapping its sg_table to avoid issues likes: ast 0000:07:00.0: swiotlb buffer is full (sz: 3145728 bytes), total 32768 (slots), used 0 (slots) Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20250522070714.439824-2-oushixiong1025@163.com
2025-05-26drm/ast: Use helpers for programming gamma ramps and palettesThomas Zimmermann
Replace ast's code for programming the hardware gamma/palette LUT with DRM helpers. Either load provided data or program a default. Set the individual entries with a callback. Each gamma/palette value is given as 3 individual 16-bit values for red, green and blue. The driver reduces them to 8 bit to make them fit into hardware registers. v3: - fix tags (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250520094203.30545-3-tzimmermann@suse.de
2025-04-23PCI: Add CONFIG_MMU dependencyArnd Bergmann
It turns out that there are no platforms that have PCI but don't have an MMU, so adding a Kconfig dependency on CONFIG_PCI simplifies build testing kernels for those platforms a lot, and avoids a lot of inadvertent build regressions. Add a dependency for CONFIG_PCI and remove all the ones for PCI specific device drivers that are currently marked not having it. There are a few platforms that have an optional MMU, but they usually cannot have PCI at all. The one exception is Coldfire MCF54xx, but this is mainly for historic reasons, and anyone using those chips should really use the MMU these days. Link: https://lore.kernel.org/lkml/a41f1b20-a76c-43d8-8c36-f12744327a54@app.fastmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> # SCSI Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20250423202215.3315550-1-arnd@kernel.org
2025-04-07drm/ast: Validate display modes against framebuffer and format limitsThomas Zimmermann
Reimplement ast_mode_config_mode_valid() with DRM format helpers and ast's helpers for framebuffer size calculation. Replaces ast's open- coded assumptions on bpp and page-alignments. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250324094520.192974-4-tzimmermann@suse.de
2025-04-07drm/ast: Remove vaddr field from struct ast_planeThomas Zimmermann
The vaddr field in struct ast_plane serves no purpose. Its value can be calculated easily from the VRAM base plus the plane offset. Do so and remove the field. In ast_primary_plane_helper_get_scanout_buffer(), remove the test for vaddr being NULL. This cannot legally happen. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250324094520.192974-3-tzimmermann@suse.de
2025-04-07drm/ast: Fix comment on modeset lockThomas Zimmermann
The ast driver protects the commit tail against concurrent reads of the display modes by acquiring a lock. The comment is misleading as the lock is not released in atomic_flush, but at the end of the commit-tail helper. Rewrite the comment. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 1fe182154984 ("drm/ast: Acquire I/O-register lock in atomic_commit_tail function") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jocelyn Falempe <jfalempe@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Cc: dri-devel@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v6.2+ Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250324094520.192974-2-tzimmermann@suse.de
2025-03-24drm/probe-helper: Do not fail from drmm_kms_helper_poll_init()Thomas Zimmermann
Failing to set up connector polling is not significant enough to fail device probing. Print a warning and return nothing from the init helper. This only affects the managed init function. The unmanaged init already never fails with an error. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250303145604.62962-4-tzimmermann@suse.de
2025-03-12drm/ast: cursor: Drop page alignmentThomas Zimmermann
The cursor scanout address requires alignment to a multiple of 8, but does not require page alignment. Change the offset calculation accordingly. Frees up a few more bytes for the primary framebuffer. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-8-tzimmermann@suse.de
2025-03-12drm/ast: Remove vram_fb_available from struct ast_deviceThomas Zimmermann
Helpers compute the offset and size of the available framebuffer memory. Remove the obsolete field vram_fb_available from struct ast_device. Also define the cursor-signature size next to its only user. v2: - initialize plane size Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-7-tzimmermann@suse.de
2025-03-12drm/ast: Add helper for computing framebuffer location in video memoryThomas Zimmermann
The ast driver stores the primary plane's image in the framebuffer memory up to where the cursor is located. Add helpers to calculate the offset and size. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-6-tzimmermann@suse.de
2025-03-12drm/ast: cursor: Add helpers for computing location in video memoryThomas Zimmermann
The ast drivers stores the cursor image at the end of the video memory. Add helpers to calculate the offset and size. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-5-tzimmermann@suse.de
2025-03-12drm/ast: Add VGACR99 register constantsThomas Zimmermann
Add register constants for VGACR99 and use them when detecting the size of the VGA memory. Aligns the code with the programming manual. Also replace literal size values with Linux' SZ_ size constants. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-4-tzimmermann@suse.de
2025-03-12drm/ast: Add VGACRAA register constantsThomas Zimmermann
Add register constants for VGACRAA and use them when detecting the size of the VGA memory. Aligns the code with the programming manual. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-3-tzimmermann@suse.de
2025-03-12drm/ast: Replace AST_VIDMEM_SIZE_ with Linux SZ_ constantsThomas Zimmermann
Ast's AST_VIDMEM_SIZE_ constants enumerate supported video-memory sizes from 8 MiB to 128 MiB. Replace them with Linux' SZ_ constants of the same value. When expanded, the literal values remain the same. The size constant for 128 MiB is unused and the default size is not necessary. Remove both of them. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250305163207.267650-2-tzimmermann@suse.de
2025-02-20drm/ast: cursor: Move implementation to separate source fileThomas Zimmermann
Move the cursor code into a separate source file for readability. No functional changes. v2: - include <linux/bits.h> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-5-tzimmermann@suse.de
2025-02-20drm/ast: cursor: Add support for ARGB4444Thomas Zimmermann
Add support for cursor image data in ARGB4444 format. This is the hardware's native format and requires no conversion. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-4-tzimmermann@suse.de
2025-02-20drm/ast: cursor: Move format conversion to shared helperThomas Zimmermann
User-space cursor-image data is encoded in ARBG8888, while hardware supports ARGB4444. Implement the format conversion as part of the format-helper framework, so that other drivers can benefit. This allows to respect the damage area of the cursor update. In previous code, all cursor image data had to be converted on each update. Now, only the changed areas require an update. The hardware image is always updated completely, as it is required for the checksum update. The format-conversion helper still contains the old implementation's optimization of writing 2 output pixels at the same time. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-3-tzimmermann@suse.de
2025-02-20drm/ast: cursor: Calculate checksum in helperThomas Zimmermann
Setting the cursor image requires a 32-bit checksum of the cursor image data. The current cursor code converts the image to ARGB4444 format and computes the checksum in a single step. Moving the checksum calculation into a separate helper will allow to move the format conversion into a shared helper. v2: - don't loop for checksum'ing final pixel (Jocelyn) - fix typo in commit message (Jocelyn) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-2-tzimmermann@suse.de
2025-02-14Merge tag 'drm-misc-next-2025-02-12' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.15: UAPI Changes: fourcc: - Add modifiers for MediaTek tiled formats Cross-subsystem Changes: bus: - mhi: Enable image transfer via BHIe in PBL dma-buf: - Add fast-path for single-fence merging Core Changes: atomic helper: - Allow full modeset on connector changes - Clarify semantics of allow_modeset - Clarify semantics of drm_atomic_helper_check() buddy allocator: - Fix multi-root cleanup ci: - Update IGT display: - dp: Support Extendeds Wake Timeout - dp_mst: Fix RAD-to-string conversion panic: - Encode QR code according to Fido 2.2 probe helper: - Cleanups scheduler: - Cleanups ttm: - Refactor pool-allocation code - Cleanups Driver Changes: amdxdma: - Fix error handling - Cleanups ast: - Refactor detection of transmitter chips - Refactor support of VBIOS display-mode handling - astdp: Fix connection status; Filter unsupported display modes bridge: - adv7511: Report correct capabilities - it6505: Fix HDCP V compare - sn65dsi86: Fix device IDs - Cleanups i915: - Enable Extendeds Wake Timeout imagination: - Check job dependencies with DRM-sched helper ivpu: - Improve command-queue handling - Use workqueue for IRQ handling - Add suport for HW fault injection - Locking fixes - Cleanups mgag200: - Add support for G200eH5 chips msm: - dpu: Add concurrent writeback support for DPU 10.x+ nouveau: - Move drm_slave_encoder interface into driver - nvkm: Refactor GSP RPC omapdrm: - Cleanups panel: - Convert several panels to multi-style functions to improve error handling - edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3, LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006, Lenovo T14s Gen6 Snapdragon - himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay kd110n11-51ie, Starry 2082109qfh040022-50e panthor: - Expose sizes of intenral BOs via fdinfo - Fix race between reset and suspend - Cleanups qaic: - Add support for AIC200 - Cleanups renesas: - Fix limits in DT bindings rockchip: - rk3576: Add HDMI support - vop2: Add new display modes on RK3588 HDMI0 up to 4K - Don't change HDMI reference clock rate - Fix DT bindings solomon: - Set SPI device table to silence warnings - Fix pixel and scanline encoding v3d: - Cleanups vc4: - Use drm_exec - Use dma-resv for wait-BO ioctl - Remove seqno infrastructure virtgpu: - Support partial mappings of GEM objects - Reserve VGA resources during initialization - Fix UAF in virtgpu_dma_buf_free_obj() - Add panic support vkms: - Switch to a managed modesetting pipeline - Add support for ARGB8888 xlnx: - Set correct DMA segment size - Fix error handling - Fix docs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20250212090625.GA24865@linux.fritz.box
2025-02-11drm/ast: astdp: Validate display modesThomas Zimmermann
Validate each display mode against the astdp transmitter chips. Filters out modes that the chip does not support. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-5-tzimmermann@suse.de
2025-02-11drm/ast: astdp: Store mode index in connector stateThomas Zimmermann
Look up the mode index for the astdp transmitter ship in the encoder's atomic check and report an error if the display mode is not supported. The lookup uses the DRM display mode instead of the driver's internal VBIOS mode. Both are equivalent. The modesetting code later reads the calculated index from the connector state to avoid recalculating it. v2: - fix typo in commit message (Jocelyn) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-4-tzimmermann@suse.de
2025-02-11drm/ast: astdp: Inline mode-index calculationThomas Zimmermann
Programming the astdp transmitter chip requires a magic value for individual modes. Inline the helper for calculating the value into its only caller (i.e., the encoder's atomic_mode_set). With further refactoring, the atomic check will be able to detect invalid modes before attempting to program them. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-3-tzimmermann@suse.de
2025-02-11drm/ast: astdp: Add connector stateThomas Zimmermann
Add dedicated connector state for ASTDP connectors. The state will store values for programming the transmitter chip. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-2-tzimmermann@suse.de
2025-02-06Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixesMaxime Ripard
Merge the few remaining patches stuck into drm-misc-next-fixes. Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-02-03drm/ast: Only look up VBIOS mode on full modesetsThomas Zimmermann
Only look up the VBIOS mode during atomic_check if the display mode changes. For page flips, the previous settings still apply. Avoids the runtime overhead of looking up the VBIOS mode on each page flip. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-17-tzimmermann@suse.de
2025-02-03drm/ast: Remove struct ast_vbios_mode_infoThomas Zimmermann
The type struct ast_vbios_mode_info used to store information about the color format and display mode. It has outlived its purpose. Inline its fields into struct ast_crtc_state and replace all instances. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-16-tzimmermann@suse.de
2025-02-03drm/ast: astdp: Look up mode index from tableThomas Zimmermann
Replace the large switch statement with a look-up table when selecting the mode index. Makes the code easier to read. The table is sorted by resolutions; if run-time overhead from traversal becomes significant, binary search would be a possible optimization. The mode index requires a refresh-rate index to be added or subtracted, which still requires a minimal switch. In the original code, some of the indices did not contain this computation. Those cases would have been equivalent to adding 0, so they are now all subsumed in the switch's default branch. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Suggested-by: Jocelyn Falempe <jfalempe@redhat.com> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> v3: - explain the semantics of the new switch statement (Jocelyn) Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-15-tzimmermann@suse.de
2025-02-03drm/ast: astdp: Rework display-mode settingThomas Zimmermann
ASTDP requires a mode index, depending on the resolution. Move the look-up code from ast_dp_set_mode() into a separate helper. Inline the rest of the function into its only caller. Rename the variable names and register constants to match the programming manual. As before, the mode-index lookup still happens during the update's atomic commit. Right now, there's no way of doing it during the atomic check. The lookup requires the VBIOS mode, which is not available at the atomic check's invocation. At least warn now if the mode index could not be found. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-14-tzimmermann@suse.de
2025-02-03drm/ast: Inline ast_get_vbios_mode_info()Thomas Zimmermann
The helper ast_get_vbios_mode_info() retrieves hardware-specific format and display-mode information. Inline the function into its only caller. While at it, also replace a use of struct drm_format_info.cpp with the correct DRM 4CC codes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-13-tzimmermann@suse.de
2025-02-03drm/ast: Validate DRM display modes against VBIOS modesThomas Zimmermann
Test DRM display modes against the list of modes supported by the VBIOS. The helper will respect the supported-modes flags in struct ast_device. Hence only DRM display modes supported by the VBIOS will be reported; without the current duplication of this information. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-12-tzimmermann@suse.de
2025-02-03drm/ast: Add helpers for VBIOS mode lookupThomas Zimmermann
Mode lines are independent from hardware Gen or TX chip, so hide all VBIOS mode tables in ast_vbios.c. Move the look-up code for VBIOS modes from ast_vbios_get_mode_info() to ast_vbios_find_mode(). The new look-up function respects the supported-mode flags in struct ast_device. For example, if a device does not have struct ast_device.support_fullhd set, the helper does not return a valid mode for 1920x1080. Taking the supported-mode flags into account allows for making the VBIOS tables the single reference for validating and setting display modes against hardware capabilities. v2: - replace mode switch with look-up table (Jocelyn) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-11-tzimmermann@suse.de
2025-02-03drm/ast: Add empty initializer for VBIOS modesThomas Zimmermann
VBIOS mode tables are terminated by an entry with a refresh rate of 0xff. The code is hard to read and fragile to use. Therefore create an empty entry with AST_VBIOS_MODE_INVALID to terminate each mode list. Stop at the invalid entry when searching for modes in the tables. Instead of testing for refresh == 0xff, test with a helper function if the mode's size and refresh have meaningful values. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-10-tzimmermann@suse.de
2025-02-03drm/ast: Find VBIOS mode from regular display sizeThomas Zimmermann
The ast driver looks up supplied display modes from an internal list of display modes supported by the VBIOS. Do not use the crtc_-prefixed display values from struct drm_display_mode for looking up the VBIOS mode. The fields contain raw values that the driver programs to hardware. They are affected by display settings like double-scan or interlace. Instead use the regular vdisplay and hdisplay fields for lookup. As the programmed values can now differ from the values used for lookup, set struct drm_display_mode.crtc_vdisplay and .crtc_hdisplay from the VBIOS mode. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-9-tzimmermann@suse.de
2025-02-03drm/ast: Always validate H/V sync flagsThomas Zimmermann
The ast driver matches DRM display modes against an internal list of modes supported by the VBIOS. Matching H/V sync flags between modes is preferred, but optional. If sync flags are not matching, the driver would program the VBIOS settings to hardware and let the display handle the difference. DRM modes are generated from attached displays or standard mode lines. Therefore differences to the VBIOS modes are not just cosmetical, but signal possible incompatibility with the display hardware. Hence make matching H/V sync flags mandatory. If the VBIOS does not support a certain mode, we should report it as unsupported. Note that the VBIOS mode tables all appear to refer to standard modes. (If sync flags really make no difference to the VBIOS, the ast driver shouldn't match them in the first place.) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-8-tzimmermann@suse.de
2025-02-03drm/ast: Add support_wuxga flag to struct ast_deviceThomas Zimmermann
Detect support for 1920x1200 (WUXGA) in ast_detect_widescreen(). The flag is cleared by default. The test logic has been taken from existing code in ast_crtc_helper_mode_valid(). The code in that function is being replaced by the new flag. v2: - move shared detection code into helper (Jocelyn) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250131092257.115596-7-tzimmermann@suse.de
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-02 13:49:59 +0000