e38f65d317
93 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
58809f614e |
drm next for 6.18-rc1
cross-subsystem: - i2c-hid: Make elan touch controllers power on after panel is enabled - dt bindings for STM32MP25 SoC - pci vgaarb: use screen_info helpers - rust pin-init updates - add MEI driver for late binding firmware update/load uapi: - add ioctl for reassigning GEM handles - provide boot_display attribute on boot-up devices core: - document DRM_MODE_PAGE_FLIP_EVENT - add vendor specific recovery method to drm device wedged uevent gem: - Simplify gpuvm locking ttm: - add interface to populate buffers sched: - Fix race condition in trace code atomic: - Reallow no-op async page flips display: - dp: Fix command length video: - Improve pixel-format handling for struct screen_info rust: - drop Opaque<> from ioctl args - Alloc: - BorrowedPage type and AsPageIter traits - Implement Vmalloc::to_page() and VmallocPageIter - DMA/Scatterlist: - Add dma::DataDirection and type alias for dma_addr_t - Abstraction for struct scatterlist and sg_table - DRM: - simplify use of generics - add DriverFile type alias - drop Object::SIZE - Rust: - pin-init tree merge - Various methods for AsBytes and FromBytes traits gpuvm: - Support madvice in Xe driver gpusvm: - fix hmm_pfn_to_map_order usage in gpusvm bridge: - Improve and fix ref counting on bridge management - cdns-dsi: Various improvements to mode setting - Support Solomon SSD2825 plus DT bindings - Support Waveshare DSI2DPI plus DT bindings - Support Content Protection property - display-connector: Improve DP display detection - Add support for Radxa Ra620 plus DT bindings - adv7511: Provide SPD and HDMI infoframes - it6505: Replace crypto_shash with sha() - synopsys: Add support for DW DPTX Controller plus DT bindings - adv7511: Write full Audio infoframe - ite6263: Support vendor-specific infoframes - simple: Add support for Realtek RTD2171 DP-to-HDMI plus DT bindings panel: - panel-edp: Support mt8189 Chromebooks; Support BOE NV140WUM-N64; Support SHP LQ134Z1; Fixes - panel-simple: Support Olimex LCD-OLinuXino-5CTS plus DT bindings - Support Samsung AMS561RA01 - Support Hydis HV101HD1 plus DT bindings - ilitek-ili9881c: Refactor mode setting; Add support for Bestar BSD1218-A101KL68 LCD plus DT bindings - lvds: Add support for Ampire AMP19201200B5TZQW-T03 to DT bindings - edp: Add support for additonal mt8189 Chromebook panels - lvds: Add DT bindings for EDT ETML0700Z8DHA amdgpu: - add CRIU support for gem objects - RAS updates - VCN SRAM load fixes - EDID read fixes - eDP ALPM support - Documentation updates - Rework PTE flag generation - DCE6 fixes - VCN devcoredump cleanup - MMHUB client id fixes - VCN 5.0.1 RAS support - SMU 13.0.x updates - Expanded PCIe DPC support - Expanded VCN reset support - VPE per queue reset support - give kernel jobs unique id for tracing - pre-populate exported buffers - cyan skillfish updates - make vbios build number available in sysfs - userq updates - HDCP updates - support MMIO remap page as ttm pool - JPEG parser updates - DCE6 DC updates - use devm for i2c buses - GPUVM locking updates - Drop non-DC DCE11 code - improve fallback handling for pixel encoding amdkfd: - SVM/page migration fixes - debugfs fixes - add CRIO support for gem objects - SVM updates radeon: - use dev_warn_once in CS parsers xe: - add madvise interface - add DRM_IOCTL_XE_VM_QUERY_MEMORY_RANGE_ATTRS to query VMA count and memory attributes - drop L# bank mask reporting from media GT3 on Xe3+. - add SLPC power_profile sysfs interface - add configs attribs to add post/mid context-switch commands - handle firmware reported hardware errors notifying userspace with device wedged uevent - use same dir structure across sysfs/debugfs - cleanup and future proof vram region init - add G-states and PCI link states to debugfs - Add SRIOV support for CCS surfaces on Xe2+ - Enable SRIOV PF mode by default on supported platforms - move flush to common code - extended core workarounds for Xe2/3 - use DRM scheduler for delayed GT TLB invalidations - configs improvements and allow VF device enablement - prep work to expose mmio regions to userspace - VF migration support added - prepare GPU SVM for THP migration - start fixing XE_PAGE_SIZE vs PAGE_SIZE - add PSMI support for hw validation - resize VF bars to max possible size according to number of VFs - Ensure GT is in C0 during resume - pre-populate exported buffers - replace xe_hmm with gpusvm - add more SVM GT stats to debugfs - improve fake pci and WA kunnit handle for new platform testing - Test GuC to GuC comms to add debugging - use attribute groups to simplify sysfs registration - add Late Binding firmware code to interact with MEI i915: - apply multiple JSL/EHL/Gen7/Gen6 workarounds properly - protect against overflow in active_engine() - Use try_cmpxchg64() in __active_lookup() - include GuC registers in error state - get rid of dev->struct_mutex - iopoll: generalize read_poll_timout - lots more display refactoring - Reject HBR3 in any eDP Panel - Prune modes for YUV420 - Display Wa fix, additions, and updates - DP: Fix 2.7 Gbps link training on g4x - DP: Adjust the idle pattern handling - DP: Shuffle the link training code a bit - Don't set/read the DSI C clock divider on GLK - Enable_psr kernel parameter changes - Type-C enabled/disconnected dp-alt sink - Wildcat Lake enabling - DP HDR updates - DRAM detection - wait PSR idle on dsb commit - Remove FBC modulo 4 restriction for ADL-P+ - panic: refactor framebuffer allocation habanalabs: - debug/visibility improvements - vmalloc-backed coherent mmap support - HLDIO infrastructure nova-core: - various register!() macro improvements - minor vbios/firmware fixes/refactoring - advance firmware boot stages; process Booter and patch signatures - process GSP and GSP bootloader - Add r570.144 firmware bindings and update to it - Move GSP boot code to own module - Use new pin-init features to store driver's private data in a single allocation - Update ARef import from sync::aref nova-drm: - Update ARef import from sync::aref tyr: - initial driver skeleton for a rust driver for ARM Mali GPUs - capable of powering up, query metadata and provide it to userspace. msm: - GPU and Core: - in DT bindings describe clocks per GPU type - GMU bandwidth voting for x1-85 - a623/a663 speedbins - cleanup some remaining no-iommu leftovers after VM_BIND conversion - fix GEM obj 32b size truncation - add missing VM_BIND param validation - IFPC for x1-85 and a750 - register xml and gen_header.py sync from mesa - Display: - add missing bindings for display on SC8180X - added DisplayPort MST bindings - conversion from round_rate() to determine_rate() amdxdna: - add IOCTL_AMDXDNA_GET_ARRAY - support user space allocated buffers - streamline PM interfaces - Refactoring wrt. hardware contexts - improve error reporting nouveau: - use GSP firmware by default - improve error reporting - Pre-populate exported buffers ast: - Clean up detection of DRAM config exynos: - add DSIM bridge driver support for Exynos7870 - Document Exynos7870 DSIM compatible in dt-binding panthor: - Print task/pid on errors - Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25 - Improve cache flushing - Fail VM bind if BO has offset renesas: - convert to RUNTIME_PM_OPS rcar-du: - Make number of lanes configurable - Use RUNTIME_PM_OPS - Add support for DSI commands rocket: - Add driver for Rockchip NPU plus DT bindings - Use kfree() and sizeof() correctly - Test DMA status rockchip: - dsi2: Add support for RK3576 plus DT bindings - Add support for RK3588 DPTX output tidss: - Use crtc_ fields for programming display mode - Remove other drivers from aperture pixpaper: - Add support for Mayqueen Pixpaper plus DT bindings v3d: - Support querying nubmer of GPU resets for KHR_robustness stm: - Clean up logging - ltdc: Add support support for STM32MP257F-EV1 plus DT bindings sitronix: - st7571-i2c: Add support for inverted displays and 2-bit grayscale tidss: - Convert to kernel's FIELD_ macros vesadrm: - Support 8-bit palette mode imagination: - Improve power management - Add support for TH1520 GPU - Support Risc-V architectures v3d: - Improve job management and locking vkms: - Support variants of ARGB8888, ARGB16161616, RGB565, RGB888 and P01x - Spport YUV with 16-bit components -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmjcpjkACgkQDHTzWXnE hr7Q7g/5AcxXqLUx7wvmDga9TpzIjDD+C+MOt568RpFQ9cYprI+/86ma7ELCpuNe dVgeobxQb/jyhf4acdBU+t5aZz+j8VPhPtIPrPY2kOVDuL1NfeQNS8VmGNpFhR+0 6hqVrtfvbYdLBrAHrU/V/RwZlBJvI/D/I2QGuvZZwWzCBgYd4u4bGuRyBCvGDxOD CTPaEqYyzjvpVuzu7AGQk655WkZQnyPmiezIl2lit1meEMMMv80HePkyWHclZo7Q hMqsEasSp5w5Q5EpYqVr1z5IdBAV1O53oor9W573J3kEoB4o1zEsTPfLO4N1dgXo bfvc24uW3zyChWY2hWyRKvOzvAoClnjfY6whv9NRP0Qi4UjzhLlNOpmhm9cst/J+ uj2Nn8UJtyvFJbTmDvoocpgdhq2mkGKdIVhVQ6tG7PjihFmyQRF7PJZjb+0Vee7L 53F0c4d6HiBI4DHa+lH6fgQUBspIvSfmcnR0ACg29NByib+JEoPSPb4ET+uZ8lLd IbQvNiCdnUduYDCKfo5ea/FesP8AXy1KfSa+z7oEEFYHbbkc7PSztUagEyZdS/yS FnnYqmo/DidmyM4nxDQUII+UDqjng7fo+l4BzIhL12pR693KzCf0mexMr6SA24ny gasN97923OTle1J9xrPrKavkx6WjswZCvOaG7ZbnJB47ydJVu5w= =ZVKY -----END PGP SIGNATURE----- Merge tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel Pull drm updates from Dave Airlie: "cross-subsystem: - i2c-hid: Make elan touch controllers power on after panel is enabled - dt bindings for STM32MP25 SoC - pci vgaarb: use screen_info helpers - rust pin-init updates - add MEI driver for late binding firmware update/load uapi: - add ioctl for reassigning GEM handles - provide boot_display attribute on boot-up devices core: - document DRM_MODE_PAGE_FLIP_EVENT - add vendor specific recovery method to drm device wedged uevent gem: - Simplify gpuvm locking ttm: - add interface to populate buffers sched: - Fix race condition in trace code atomic: - Reallow no-op async page flips display: - dp: Fix command length video: - Improve pixel-format handling for struct screen_info rust: - drop Opaque<> from ioctl args - Alloc: - BorrowedPage type and AsPageIter traits - Implement Vmalloc::to_page() and VmallocPageIter - DMA/Scatterlist: - Add dma::DataDirection and type alias for dma_addr_t - Abstraction for struct scatterlist and sg_table - DRM: - simplify use of generics - add DriverFile type alias - drop Object::SIZE - Rust: - pin-init tree merge - Various methods for AsBytes and FromBytes traits gpuvm: - Support madvice in Xe driver gpusvm: - fix hmm_pfn_to_map_order usage in gpusvm bridge: - Improve and fix ref counting on bridge management - cdns-dsi: Various improvements to mode setting - Support Solomon SSD2825 plus DT bindings - Support Waveshare DSI2DPI plus DT bindings - Support Content Protection property - display-connector: Improve DP display detection - Add support for Radxa Ra620 plus DT bindings - adv7511: Provide SPD and HDMI infoframes - it6505: Replace crypto_shash with sha() - synopsys: Add support for DW DPTX Controller plus DT bindings - adv7511: Write full Audio infoframe - ite6263: Support vendor-specific infoframes - simple: Add support for Realtek RTD2171 DP-to-HDMI plus DT bindings panel: - panel-edp: Support mt8189 Chromebooks; Support BOE NV140WUM-N64; Support SHP LQ134Z1; Fixes - panel-simple: Support Olimex LCD-OLinuXino-5CTS plus DT bindings - Support Samsung AMS561RA01 - Support Hydis HV101HD1 plus DT bindings - ilitek-ili9881c: Refactor mode setting; Add support for Bestar BSD1218-A101KL68 LCD plus DT bindings - lvds: Add support for Ampire AMP19201200B5TZQW-T03 to DT bindings - edp: Add support for additonal mt8189 Chromebook panels - lvds: Add DT bindings for EDT ETML0700Z8DHA amdgpu: - add CRIU support for gem objects - RAS updates - VCN SRAM load fixes - EDID read fixes - eDP ALPM support - Documentation updates - Rework PTE flag generation - DCE6 fixes - VCN devcoredump cleanup - MMHUB client id fixes - VCN 5.0.1 RAS support - SMU 13.0.x updates - Expanded PCIe DPC support - Expanded VCN reset support - VPE per queue reset support - give kernel jobs unique id for tracing - pre-populate exported buffers - cyan skillfish updates - make vbios build number available in sysfs - userq updates - HDCP updates - support MMIO remap page as ttm pool - JPEG parser updates - DCE6 DC updates - use devm for i2c buses - GPUVM locking updates - Drop non-DC DCE11 code - improve fallback handling for pixel encoding amdkfd: - SVM/page migration fixes - debugfs fixes - add CRIO support for gem objects - SVM updates radeon: - use dev_warn_once in CS parsers xe: - add madvise interface - add DRM_IOCTL_XE_VM_QUERY_MEMORY_RANGE_ATTRS to query VMA count and memory attributes - drop L# bank mask reporting from media GT3 on Xe3+. - add SLPC power_profile sysfs interface - add configs attribs to add post/mid context-switch commands - handle firmware reported hardware errors notifying userspace with device wedged uevent - use same dir structure across sysfs/debugfs - cleanup and future proof vram region init - add G-states and PCI link states to debugfs - Add SRIOV support for CCS surfaces on Xe2+ - Enable SRIOV PF mode by default on supported platforms - move flush to common code - extended core workarounds for Xe2/3 - use DRM scheduler for delayed GT TLB invalidations - configs improvements and allow VF device enablement - prep work to expose mmio regions to userspace - VF migration support added - prepare GPU SVM for THP migration - start fixing XE_PAGE_SIZE vs PAGE_SIZE - add PSMI support for hw validation - resize VF bars to max possible size according to number of VFs - Ensure GT is in C0 during resume - pre-populate exported buffers - replace xe_hmm with gpusvm - add more SVM GT stats to debugfs - improve fake pci and WA kunnit handle for new platform testing - Test GuC to GuC comms to add debugging - use attribute groups to simplify sysfs registration - add Late Binding firmware code to interact with MEI i915: - apply multiple JSL/EHL/Gen7/Gen6 workarounds properly - protect against overflow in active_engine() - Use try_cmpxchg64() in __active_lookup() - include GuC registers in error state - get rid of dev->struct_mutex - iopoll: generalize read_poll_timout - lots more display refactoring - Reject HBR3 in any eDP Panel - Prune modes for YUV420 - Display Wa fix, additions, and updates - DP: Fix 2.7 Gbps link training on g4x - DP: Adjust the idle pattern handling - DP: Shuffle the link training code a bit - Don't set/read the DSI C clock divider on GLK - Enable_psr kernel parameter changes - Type-C enabled/disconnected dp-alt sink - Wildcat Lake enabling - DP HDR updates - DRAM detection - wait PSR idle on dsb commit - Remove FBC modulo 4 restriction for ADL-P+ - panic: refactor framebuffer allocation habanalabs: - debug/visibility improvements - vmalloc-backed coherent mmap support - HLDIO infrastructure nova-core: - various register!() macro improvements - minor vbios/firmware fixes/refactoring - advance firmware boot stages; process Booter and patch signatures - process GSP and GSP bootloader - Add r570.144 firmware bindings and update to it - Move GSP boot code to own module - Use new pin-init features to store driver's private data in a single allocation - Update ARef import from sync::aref nova-drm: - Update ARef import from sync::aref tyr: - initial driver skeleton for a rust driver for ARM Mali GPUs - capable of powering up, query metadata and provide it to userspace. msm: - GPU and Core: - in DT bindings describe clocks per GPU type - GMU bandwidth voting for x1-85 - a623/a663 speedbins - cleanup some remaining no-iommu leftovers after VM_BIND conversion - fix GEM obj 32b size truncation - add missing VM_BIND param validation - IFPC for x1-85 and a750 - register xml and gen_header.py sync from mesa - Display: - add missing bindings for display on SC8180X - added DisplayPort MST bindings - conversion from round_rate() to determine_rate() amdxdna: - add IOCTL_AMDXDNA_GET_ARRAY - support user space allocated buffers - streamline PM interfaces - Refactoring wrt. hardware contexts - improve error reporting nouveau: - use GSP firmware by default - improve error reporting - Pre-populate exported buffers ast: - Clean up detection of DRAM config exynos: - add DSIM bridge driver support for Exynos7870 - Document Exynos7870 DSIM compatible in dt-binding panthor: - Print task/pid on errors - Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25 - Improve cache flushing - Fail VM bind if BO has offset renesas: - convert to RUNTIME_PM_OPS rcar-du: - Make number of lanes configurable - Use RUNTIME_PM_OPS - Add support for DSI commands rocket: - Add driver for Rockchip NPU plus DT bindings - Use kfree() and sizeof() correctly - Test DMA status rockchip: - dsi2: Add support for RK3576 plus DT bindings - Add support for RK3588 DPTX output tidss: - Use crtc_ fields for programming display mode - Remove other drivers from aperture pixpaper: - Add support for Mayqueen Pixpaper plus DT bindings v3d: - Support querying nubmer of GPU resets for KHR_robustness stm: - Clean up logging - ltdc: Add support support for STM32MP257F-EV1 plus DT bindings sitronix: - st7571-i2c: Add support for inverted displays and 2-bit grayscale tidss: - Convert to kernel's FIELD_ macros vesadrm: - Support 8-bit palette mode imagination: - Improve power management - Add support for TH1520 GPU - Support Risc-V architectures v3d: - Improve job management and locking vkms: - Support variants of ARGB8888, ARGB16161616, RGB565, RGB888 and P01x - Spport YUV with 16-bit components" * tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel: (1455 commits) drm/amd: Add name to modes from amdgpu_connector_add_common_modes() drm/amd: Drop some common modes from amdgpu_connector_add_common_modes() drm/amdgpu: update MODULE_PARM_DESC for freesync_video drm/amd: Use dynamic array size declaration for amdgpu_connector_add_common_modes() drm/amd/display: Share dce100_validate_global with DCE6-8 drm/amd/display: Share dce100_validate_bandwidth with DCE6-8 drm/amdgpu: Fix fence signaling race condition in userqueue amd/amdkfd: enhance kfd process check in switch partition amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw drm/amd/display: Reject modes with too high pixel clock on DCE6-10 drm/amd: Drop unnecessary check in amdgpu_connector_add_common_modes() drm/amd/display: Only enable common modes for eDP and LVDS drm/amdgpu: remove the redeclaration of variable i drm/amdgpu/userq: assign an error code for invalid userq va drm/amdgpu: revert "rework reserved VMID handling" v2 drm/amdgpu: remove leftover from enforcing isolation by VMID drm/amdgpu: Add fallback to pipe reset if KCQ ring reset fails accel/habanalabs: add Infineon version check accel/habanalabs/gaudi2: read preboot status after recovering from dirty state accel/habanalabs: add HL_GET_P_STATE passthrough type ... |
||
|
Linus Torvalds
|
eb3289fc47 |
Driver core changes for 6.18-rc1
- Auxiliary:
- Drop call to dev_pm_domain_detach() in auxiliary_bus_probe()
- Optimize logic of auxiliary_match_id()
- Rust:
- Auxiliary:
- Use primitive C types from prelude
- DebugFs:
- Add debugfs support for simple read/write files and custom callbacks
through a File-type-based and directory-scope-based API
- Sample driver code for the File-type-based API
- Sample module code for the directory-scope-based API
- I/O:
- Add io::poll module and implement Rust specific read_poll_timeout()
helper
- IRQ:
- Implement support for threaded and non-threaded device IRQs based on
(&Device<Bound>, IRQ number) tuples (IrqRequest)
- Provide &Device<Bound> cookie in IRQ handlers
- PCI:
- Support IRQ requests from IRQ vectors for a specific pci::Device<Bound>
- Implement accessors for subsystem IDs, revision, devid and resource start
- Provide dedicated pci::Vendor and pci::Class types for vendor and class
ID numbers
- Implement Display to print actual vendor and class names; Debug to print
the raw ID numbers
- Add pci::DeviceId::from_class_and_vendor() helper
- Use primitive C types from prelude
- Various minor inline and (safety) comment improvements
- Platform:
- Support IRQ requests from IRQ vectors for a specific
platform::Device<Bound>
- Nova:
- Use pci::DeviceId::from_class_and_vendor() to avoid probing
non-display/compute PCI functions
- Misc:
- Add helper for cpu_relax()
- Update ARef import from sync::aref
- sysfs:
- Remove bin_attrs_new field from struct attribute_group
- Remove read_new() and write_new() from struct bin_attribute
- Misc:
- Document potential race condition in get_dev_from_fwnode()
- Constify node_group argument in software node registration functions
- Fix order of kernel-doc parameters in various functions
- Set power.no_pm flag for faux devices
- Set power.no_callbacks flag along with the power.no_pm flag
- Constify the pmu_bus bus type
- Minor spelling fixes
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Merge tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Auxiliary:
- Drop call to dev_pm_domain_detach() in auxiliary_bus_probe()
- Optimize logic of auxiliary_match_id()
Rust:
- Auxiliary:
- Use primitive C types from prelude
- DebugFs:
- Add debugfs support for simple read/write files and custom
callbacks through a File-type-based and directory-scope-based
API
- Sample driver code for the File-type-based API
- Sample module code for the directory-scope-based API
- I/O:
- Add io::poll module and implement Rust specific
read_poll_timeout() helper
- IRQ:
- Implement support for threaded and non-threaded device IRQs
based on (&Device<Bound>, IRQ number) tuples (IrqRequest)
- Provide &Device<Bound> cookie in IRQ handlers
- PCI:
- Support IRQ requests from IRQ vectors for a specific
pci::Device<Bound>
- Implement accessors for subsystem IDs, revision, devid and
resource start
- Provide dedicated pci::Vendor and pci::Class types for vendor
and class ID numbers
- Implement Display to print actual vendor and class names; Debug
to print the raw ID numbers
- Add pci::DeviceId::from_class_and_vendor() helper
- Use primitive C types from prelude
- Various minor inline and (safety) comment improvements
- Platform:
- Support IRQ requests from IRQ vectors for a specific
platform::Device<Bound>
- Nova:
- Use pci::DeviceId::from_class_and_vendor() to avoid probing
non-display/compute PCI functions
- Misc:
- Add helper for cpu_relax()
- Update ARef import from sync::aref
sysfs:
- Remove bin_attrs_new field from struct attribute_group
- Remove read_new() and write_new() from struct bin_attribute
Misc:
- Document potential race condition in get_dev_from_fwnode()
- Constify node_group argument in software node registration
functions
- Fix order of kernel-doc parameters in various functions
- Set power.no_pm flag for faux devices
- Set power.no_callbacks flag along with the power.no_pm flag
- Constify the pmu_bus bus type
- Minor spelling fixes"
* tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (43 commits)
rust: pci: display symbolic PCI vendor names
rust: pci: display symbolic PCI class names
rust: pci: fix incorrect platform reference in PCI driver probe doc comment
rust: pci: fix incorrect platform reference in PCI driver unbind doc comment
perf: make pmu_bus const
samples: rust: Add scoped debugfs sample driver
rust: debugfs: Add support for scoped directories
samples: rust: Add debugfs sample driver
rust: debugfs: Add support for callback-based files
rust: debugfs: Add support for writable files
rust: debugfs: Add support for read-only files
rust: debugfs: Add initial support for directories
driver core: auxiliary bus: Optimize logic of auxiliary_match_id()
driver core: auxiliary bus: Drop dev_pm_domain_detach() call
driver core: Fix order of the kernel-doc parameters
driver core: get_dev_from_fwnode(): document potential race
drivers: base: fix "publically"->"publicly"
driver core/PM: Set power.no_callbacks along with power.no_pm
driver core: faux: Set power.no_pm for faux devices
rust: pci: inline several tiny functions
...
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||
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Linus Torvalds
|
f4e0ff7e45 |
Rust changes for v6.18
Toolchain and infrastructure:
- Derive 'Zeroable' for all structs and unions generated by 'bindgen'
where possible and corresponding cleanups. To do so, add the
'pin-init' crate as a dependency to 'bindings' and 'uapi'.
It also includes its first use in the 'cpufreq' module, with more to
come in the next cycle.
- Add warning to the 'rustdoc' target to detect broken 'srctree/' links
and fix existing cases.
- Remove support for unused (since v6.16) host '#[test]'s, simplifying
the 'rusttest' target. Tests should generally run within KUnit.
'kernel' crate:
- Add 'ptr' module with a new 'Alignment' type, which is always a power
of two and is used to validate that a given value is a valid
alignment and to perform masking and alignment operations:
// Checked at build time.
assert_eq!(Alignment:🆕:<16>().as_usize(), 16);
// Checked at runtime.
assert_eq!(Alignment::new_checked(15), None);
assert_eq!(Alignment::of::<u8>().log2(), 0);
assert_eq!(0x25u8.align_down(Alignment:🆕:<0x10>()), 0x20);
assert_eq!(0x5u8.align_up(Alignment:🆕:<0x10>()), Some(0x10));
assert_eq!(u8::MAX.align_up(Alignment:🆕:<0x10>()), None);
It also includes its first use in Nova.
- Add 'core::mem::{align,size}_of{,_val}' to the prelude, matching
Rust 1.80.0.
- Keep going with the steps on our migration to the standard library
'core::ffi::CStr' type (use 'kernel::{fmt, prelude::fmt!}' and use
upstream method names).
- 'error' module: improve 'Error::from_errno' and 'to_result'
documentation, including examples/tests.
- 'sync' module: extend 'aref' submodule documentation now that it
exists, and more updates to complete the ongoing move of 'ARef' and
'AlwaysRefCounted' to 'sync::aref'.
- 'list' module: add an example/test for 'ListLinksSelfPtr' usage.
- 'alloc' module:
- Implement 'Box::pin_slice()', which constructs a pinned slice of
elements.
- Provide information about the minimum alignment guarantees of
'Kmalloc', 'Vmalloc' and 'KVmalloc'.
- Take minimum alignment guarantees of allocators for
'ForeignOwnable' into account.
- Remove the 'allocator_test' (including 'Cmalloc').
- Add doctest for 'Vec::as_slice()'.
- Constify various methods.
- 'time' module:
- Add methods on 'HrTimer' that can only be called with exclusive
access to an unarmed timer, or from timer callback context.
- Add arithmetic operations to 'Instant' and 'Delta'.
- Add a few convenience and access methods to 'HrTimer' and
'Instant'.
'macros' crate:
- Reduce collections in 'quote!' macro.
And a few other cleanups and improvements.
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Merge tag 'rust-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Derive 'Zeroable' for all structs and unions generated by 'bindgen'
where possible and corresponding cleanups. To do so, add the
'pin-init' crate as a dependency to 'bindings' and 'uapi'.
It also includes its first use in the 'cpufreq' module, with more
to come in the next cycle.
- Add warning to the 'rustdoc' target to detect broken 'srctree/'
links and fix existing cases.
- Remove support for unused (since v6.16) host '#[test]'s,
simplifying the 'rusttest' target. Tests should generally run
within KUnit.
'kernel' crate:
- Add 'ptr' module with a new 'Alignment' type, which is always a
power of two and is used to validate that a given value is a valid
alignment and to perform masking and alignment operations:
// Checked at build time.
assert_eq!(Alignment:🆕:<16>().as_usize(), 16);
// Checked at runtime.
assert_eq!(Alignment::new_checked(15), None);
assert_eq!(Alignment::of::<u8>().log2(), 0);
assert_eq!(0x25u8.align_down(Alignment:🆕:<0x10>()), 0x20);
assert_eq!(0x5u8.align_up(Alignment:🆕:<0x10>()), Some(0x10));
assert_eq!(u8::MAX.align_up(Alignment:🆕:<0x10>()), None);
It also includes its first use in Nova.
- Add 'core::mem::{align,size}_of{,_val}' to the prelude, matching
Rust 1.80.0.
- Keep going with the steps on our migration to the standard library
'core::ffi::CStr' type (use 'kernel::{fmt, prelude::fmt!}' and use
upstream method names).
- 'error' module: improve 'Error::from_errno' and 'to_result'
documentation, including examples/tests.
- 'sync' module: extend 'aref' submodule documentation now that it
exists, and more updates to complete the ongoing move of 'ARef' and
'AlwaysRefCounted' to 'sync::aref'.
- 'list' module: add an example/test for 'ListLinksSelfPtr' usage.
- 'alloc' module:
- Implement 'Box::pin_slice()', which constructs a pinned slice of
elements.
- Provide information about the minimum alignment guarantees of
'Kmalloc', 'Vmalloc' and 'KVmalloc'.
- Take minimum alignment guarantees of allocators for
'ForeignOwnable' into account.
- Remove the 'allocator_test' (including 'Cmalloc').
- Add doctest for 'Vec::as_slice()'.
- Constify various methods.
- 'time' module:
- Add methods on 'HrTimer' that can only be called with exclusive
access to an unarmed timer, or from timer callback context.
- Add arithmetic operations to 'Instant' and 'Delta'.
- Add a few convenience and access methods to 'HrTimer' and
'Instant'.
'macros' crate:
- Reduce collections in 'quote!' macro.
And a few other cleanups and improvements"
* tag 'rust-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (58 commits)
gpu: nova-core: use Alignment for alignment-related operations
rust: add `Alignment` type
rust: macros: reduce collections in `quote!` macro
rust: acpi: use `core::ffi::CStr` method names
rust: of: use `core::ffi::CStr` method names
rust: net: use `core::ffi::CStr` method names
rust: miscdevice: use `core::ffi::CStr` method names
rust: kunit: use `core::ffi::CStr` method names
rust: firmware: use `core::ffi::CStr` method names
rust: drm: use `core::ffi::CStr` method names
rust: cpufreq: use `core::ffi::CStr` method names
rust: configfs: use `core::ffi::CStr` method names
rust: auxiliary: use `core::ffi::CStr` method names
drm/panic: use `core::ffi::CStr` method names
rust: device: use `kernel::{fmt,prelude::fmt!}`
rust: sync: use `kernel::{fmt,prelude::fmt!}`
rust: seq_file: use `kernel::{fmt,prelude::fmt!}`
rust: kunit: use `kernel::{fmt,prelude::fmt!}`
rust: file: use `kernel::{fmt,prelude::fmt!}`
rust: device: use `kernel::{fmt,prelude::fmt!}`
...
|
||
|
Alexandre Courbot
|
f3f6b36643 |
gpu: nova-core: use Alignment for alignment-related operations
Make use of the newly-available `Alignment` type and remove the corresponding TODO item. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Dave Airlie
|
6f17ab9a63 |
DRM Rust changes for v6.18
Alloc
- Add BorrowedPage type and AsPageIter trait
- Implement Vmalloc::to_page() and VmallocPageIter
- Implement AsPageIter for VBox and VVec
DMA & Scatterlist
- Add dma::DataDirection and type alias for dma_addr_t
- Abstraction for struct scatterlist and struct sg_table
DRM
- In the DRM GEM module, simplify overall use of generics, add
DriverFile type alias and drop Object::SIZE.
Nova (Core)
- Various register!() macro improvements (paving the way for lifting
it to common driver infrastructure)
- Minor VBios fixes and refactoring
- Minor firmware request refactoring
- Advance firmware boot stages; process Booter and patch its
signature, process GSP and GSP bootloader
- Switch development fimrware version to r570.144
- Add basic firmware bindings for r570.144
- Move GSP boot code to its own module
- Clean up and take advantage of pin-init features to store most of
the driver's private data within a single allocation
- Update ARef import from sync::aref
- Add website to MAINTAINERS entry
Nova (DRM)
- Update ARef import from sync::aref
- Add website to MAINTAINERS entry
Pin-Init
- Merge pin-init PR from Benno
- `#[pin_data]` now generates a `*Projection` struct similar to the
`pin-project` crate.
- Add initializer code blocks to `[try_][pin_]init!` macros: make
initializer macros accept any number of `_: {/* arbitrary code
*/},` & make them run the code at that point.
- Make the `[try_][pin_]init!` macros expose initialized fields via
a `let` binding as `&mut T` or `Pin<&mut T>` for later fields.
Rust
- Various methods for AsBytes and FromBytes traits
Tyr
- Initial Rust driver skeleton for ARM Mali GPUs.
- It can power up the GPU, query for GPU metatdata through MMIO and
provide the metadata to userspace via DRM device IOCTL (struct
drm_panthor_dev_query).
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Merge tag 'drm-rust-next-2025-09-16' of https://gitlab.freedesktop.org/drm/rust/kernel into drm-next
DRM Rust changes for v6.18
Alloc
- Add BorrowedPage type and AsPageIter trait
- Implement Vmalloc::to_page() and VmallocPageIter
- Implement AsPageIter for VBox and VVec
DMA & Scatterlist
- Add dma::DataDirection and type alias for dma_addr_t
- Abstraction for struct scatterlist and struct sg_table
DRM
- In the DRM GEM module, simplify overall use of generics, add
DriverFile type alias and drop Object::SIZE.
Nova (Core)
- Various register!() macro improvements (paving the way for lifting
it to common driver infrastructure)
- Minor VBios fixes and refactoring
- Minor firmware request refactoring
- Advance firmware boot stages; process Booter and patch its
signature, process GSP and GSP bootloader
- Switch development fimrware version to r570.144
- Add basic firmware bindings for r570.144
- Move GSP boot code to its own module
- Clean up and take advantage of pin-init features to store most of
the driver's private data within a single allocation
- Update ARef import from sync::aref
- Add website to MAINTAINERS entry
Nova (DRM)
- Update ARef import from sync::aref
- Add website to MAINTAINERS entry
Pin-Init
- Merge pin-init PR from Benno
- `#[pin_data]` now generates a `*Projection` struct similar to the
`pin-project` crate.
- Add initializer code blocks to `[try_][pin_]init!` macros: make
initializer macros accept any number of `_: {/* arbitrary code
*/},` & make them run the code at that point.
- Make the `[try_][pin_]init!` macros expose initialized fields via
a `let` binding as `&mut T` or `Pin<&mut T>` for later fields.
Rust
- Various methods for AsBytes and FromBytes traits
Tyr
- Initial Rust driver skeleton for ARM Mali GPUs.
- It can power up the GPU, query for GPU metatdata through MMIO and
provide the metadata to userspace via DRM device IOCTL (struct
drm_panthor_dev_query).
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://lore.kernel.org/r/DCUC4SY6SRBD.1ZLHAIQZOC6KG@kernel.org
|
||
|
Tamir Duberstein
|
4b4d06a763 |
gpu: nova-core: use kernel::{fmt,prelude::fmt!}
Reduce coupling to implementation details of the formatting machinery by avoiding direct use for `core`'s formatting traits and macros. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Greg Kroah-Hartman
|
c319c4ec06 |
Merge 6.17-rc6 into driver-core-next
We need the driver core fixes in here to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Alistair Popple
|
299eb32863 |
gpu: nova-core: Add base files for r570.144 firmware bindings
Interacting with the GSP currently requires using definitions from C header files. Rust definitions for the types needed for Nova core will be generated using the Rust bindgen tool. This patch adds the base module to allow inclusion of the generated bindings. The generated bindings themselves are added by subsequent patches when they are first used. Currently we only intend to support a single firmware version, 570.144, with these bindings. Longer term we intend to move to a more stable GSP interface that isn't tied to specific firmware versions. Signed-off-by: Alistair Popple <apopple@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> [acourbot@nvidia.com: adapt the bindings module comment a bit] Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-10-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
cb05748b42 |
gpu: nova-core: firmware: use 570.144 firmware
570.144 is the latest available into linux-firmware as of this commit, and the one we will use to start development of nova-core. It should eventually be dropped for a newer version before the driver becomes able to do anything useful. The newer firmware is expected to iron out some of the inelegances of 570.144, notably related to packaging. Reviewed-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-9-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
015b1d3650 |
gpu: nova-core: firmware: process the GSP bootloader
The GSP bootloader is a small RISC-V firmware that is loaded by Booter onto the GSP core and is in charge of loading, validating, and starting the actual GSP firmware. It is a regular binary firmware file containing a specific header. Create a type holding the DMA-mapped firmware as well as useful information extracted from the header, and hook it into our firmware structure for later use. The GSP bootloader is stored into the `GspFirmware` structure, since it is part of the GSP firmware package. This makes the `Firmware` structure empty, so remove it. Reviewed-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-8-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
a841614e60 |
gpu: nova-core: firmware: process and prepare the GSP firmware
The GSP firmware is a binary blob that is verified, loaded, and run by the GSP bootloader. Its presentation is a bit peculiar as the GSP bootloader expects to be given a DMA address to a 3-levels page table mapping the GSP firmware at address 0 of its own address space. Prepare such a structure containing the DMA-mapped firmware as well as the DMA-mapped page tables, and a way to obtain the DMA handle of the level 0 page table. Then, move the GSP firmware instance from the `Firmware` struct to the `start_gsp` method since it doesn't need to be kept after the GSP is booted. As we are performing the required ELF section parsing and radix3 page table building, remove these items from the TODO file. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-7-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
3e5c9681bf |
gpu: nova-core: firmware: process Booter and patch its signature
The Booter signed firmware is an essential part of bringing up the GSP on Turing and Ampere. It is loaded on the sec2 falcon core and is responsible for loading and running the RISC-V GSP bootloader into the GSP core. Add support for parsing the Booter firmware loaded from userspace, patch its signatures, and store it into a form that is ready to be loaded and executed on the sec2 falcon. Then, move the Booter instance from the `Firmware` struct to the `start_gsp` method since it doesn't need to be kept after the GSP is booted. We do not run Booter yet, as its own payload (the GSP bootloader and firmware image) still need to be prepared. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-6-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
d6cb7319e6 |
gpu: nova-core: firmware: add support for common firmware header
Several firmware files loaded from userspace feature a common header that describes their payload. Add basic support for it so subsequent patches can leverage it. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-5-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
ebe658732c |
gpu: nova-core: firmware: move firmware request code into a function
When all the firmware files are loaded from `Firmware::new`, it makes sense to have the firmware request code as a closure. However, since we eventually want each individual firmware constructor to request its own file (and get rid of `Firmware` altogether), move this code into a dedicated function that can be called by individual firmware types. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-4-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
b345c917d7 |
gpu: nova-core: add Chipset::name() method
There are a few cases where we need the lowercase name of a given chipset, notably to resolve firmware files paths for dynamic loading or to build the module information. So far, we relied on a static `NAMES` array for the latter, and some CString hackery for the former. Replace both with a new `name` const method that returns the lowercase name of a chipset instance. We can generate it using the `paste!` macro. Using this method removes the need to create a `CString` when loading firmware, and lets us remove a couple of utility functions that now have no user. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-3-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
e7c96980ea |
gpu: nova-core: move GSP boot code to its own module
Right now the GSP boot code is very incomplete and limited to running FRTS, so having it in `Gpu::new` is not a big constraint. However, this will change as we add more steps of the GSP boot process, and not all GPU families follow the same procedure, so having these steps in a dedicated method is the logical construct. There is also the fact the GSP will require its own runtime data, and while it won't immediately need to be pinned, we want to be ready for the time where it will - most likely when it starts using mutexes. Thus, add an empty `Gsp` type that is pinned inside `Gpu` and initialized using a pin initializer. This sets the constraint we need to observe from the start, and could spare us some costly refactoring down the road. Then, move the code related to GSP boot to the `gsp::boot` module, as part of the `Gsp` implementation. Doing so allows us to make `Gpu::new` return a fallible `impl PinInit` instead of a `Result.` This is more idiomatic when working with pinned objects, and sets up the pinned initialization pattern we want to preserve as the code grows more complex. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-2-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
f0fbbff7e3 |
gpu: nova-core: require Send on FalconEngine and FalconHal
We want to store the GSP and SEC2 falcon instances inside the `Gpu` structure, but doing so require these types to implement `Send` for `pci::Driver` to remain implementable on `NovaCore`, which embeds `Gpu`. All implementors of `FalconEngine` and `FalconHal` satisfy the requirements of `Send`, and these traits also already required `Sync`, so this a minor tweak. Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-1-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Danilo Krummrich
|
e2580413a8 |
gpu: nova-core: take advantage of pci::Device::unbind()
Now that we have pci::Device::unbind() we can unregister the sysmem flush page with a direct access the I/O resource, i.e. without RCU read side critical section. Signed-off-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://lore.kernel.org/r/20250901150207.63094-1-dakr@kernel.org Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
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Danilo Krummrich
|
c7081ec661 |
rust: dma: add type alias for bindings::dma_addr_t
Add a type alias for bindings::dma_addr_t (DmaAddress), such that we do not have to access bindings directly. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Suggested-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250828133323.53311-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
John Hubbard
|
6783d3b085 |
gpu: nova-core: avoid probing non-display/compute PCI functions
NovaCore has so far been too imprecise about figuring out if .probe() has found a supported PCI PF (Physical Function). By that I mean: .probe() sets up BAR0 (which involves a lot of very careful devres and Device<Bound> details behind the scenes). And then if it is dealing with a non-supported device such as the .1 audio PF on many GPUs, it fails out due to an unexpected BAR0 size. We have been fortunate that the BAR0 sizes are different. Really, we should be filtering on PCI class ID instead. These days I think we can confidently pick out Nova's supported PF's via PCI class ID. And if not, then we'll revisit. The approach here is to filter on "Display VGA" or "Display 3D", which is how PCI class IDs express "this is a modern GPU's PF". Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-5-jhubbard@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Alexandre Courbot
|
93296e9d95 |
gpu: nova-core: vbios: store reference to Device where relevant
Now that the vbios code uses a non-bound `Device` instance, store an `ARef` to it at construction time so we can use it for logging without having to carry an extra argument on every method for that sole purpose. Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250808-vbios_device-v1-2-834bbbab6471@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
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Alexandre Courbot
|
dff11511d1 |
gpu: nova-core: vbios: replace pci::Device with device::Device
The passed pci::Device is exclusively used for logging purposes, so it can be replaced by a regular device::Device, which allows us to remove the `as_ref()` indirections at each logging site. Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250808-vbios_device-v1-1-834bbbab6471@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
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|
Danilo Krummrich
|
5c5a41a754 |
gpu: nova-core: depend on CONFIG_64BIT
If built on architectures with CONFIG_ARCH_DMA_ADDR_T_64BIT=y nova-core
produces that following build failures:
error[E0308]: mismatched types
--> drivers/gpu/nova-core/fb.rs:49:59
|
49 | hal::fb_hal(chipset).write_sysmem_flush_page(bar, page.dma_handle())?;
| ----------------------- ^^^^^^^^^^^^^^^^^ expected `u64`, found `u32`
| |
| arguments to this method are incorrect
|
note: method defined here
--> drivers/gpu/nova-core/fb/hal.rs:19:8
|
19 | fn write_sysmem_flush_page(&self, bar: &Bar0, addr: u64) -> Result;
| ^^^^^^^^^^^^^^^^^^^^^^^
help: you can convert a `u32` to a `u64`
|
49 | hal::fb_hal(chipset).write_sysmem_flush_page(bar, page.dma_handle().into())?;
| +++++++
error[E0308]: mismatched types
--> drivers/gpu/nova-core/fb.rs:65:47
|
65 | if hal.read_sysmem_flush_page(bar) == self.page.dma_handle() {
| ------------------------------- ^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found `u32`
| |
| expected because this is `u64`
|
help: you can convert a `u32` to a `u64`
|
65 | if hal.read_sysmem_flush_page(bar) == self.page.dma_handle().into() {
| +++++++
error: this arithmetic operation will overflow
--> drivers/gpu/nova-core/falcon.rs:469:23
|
469 | .set_base((dma_start >> 40) as u16)
| ^^^^^^^^^^^^^^^^^ attempt to shift right by `40_i32`, which would overflow
|
= note: `#[deny(arithmetic_overflow)]` on by default
This is due to the code making assumptions on the width of dma_addr_t to
be 64 bit.
While this could technically be handled, it is rather painful to deal
with, as the following example illustrates:
pub(super) fn read_sysmem_flush_page_ga100(bar: &Bar0) -> DmaAddress {
let addr = u64::from(regs::NV_PFB_NISO_FLUSH_SYSMEM_ADDR::read(bar).adr_39_08())
<< FLUSH_SYSMEM_ADDR_SHIFT
| u64::from(regs::NV_PFB_NISO_FLUSH_SYSMEM_ADDR_HI::read(bar).adr_63_40())
<< FLUSH_SYSMEM_ADDR_SHIFT_HI;
addr.try_into().unwrap_or_else(|_| {
kernel::warn_on!(true);
0
})
}
At the same time there's not much value for nova-core to support 32-bit,
given that the supported GPU architectures are Turing and later, hence
depend on CONFIG_64BIT.
Cc: John Hubbard <jhubbard@nvidia.com>
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://lore.kernel.org/lkml/20250828160247.37492-1-ojeda@kernel.org/
Fixes: 6554ad65b589 ("gpu: nova-core: register sysmem flush page")
Fixes: 69f5cd67ce41 ("gpu: nova-core: add falcon register definitions and base code")
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/r/20250828223954.351348-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
|
||
|
Alexandre Courbot
|
99e7f8e83a |
gpu: nova-core: falcon: align DMA transfers to 256 bytes
Falcon DMA transfers are done in 256 bytes increments, and the method responsible for initiating the transfer checked that the required length was indeed a multiple of 256. While correct, this also requires callers to specifically account for this limitation of DMA transfers, and we had for instance the fwsec code performing a seemingly arbitrary (and potentially overflowing) upwards alignment of the DMEM load size to match this requirement. Let's move that alignment into the loading code itself instead: since it is working in terms of number of transfers, we can turn this upwards alignment into a non-overflowing operation, and check that the requested transfer remains into the limits of the DMA object. This also allows us to remove a DMA-specific constant in the fwsec code. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://lore.kernel.org/r/20250821-falcondma_256b-v2-1-83e8647a24b5@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Shankari Anand
|
d234f3aef5 |
gpu: nova-core: Update ARef imports from sync::aref
Update call sites in nova-core to import `ARef` from `sync::aref` instead of `types`. This aligns with the ongoing effort to move `ARef` and `AlwaysRefCounted` to sync. [acourbot@nvidia.com: use standard prefix for nova-core.] Suggested-by: Benno Lossin <lossin@kernel.org> Link: https://github.com/Rust-for-Linux/linux/issues/1173 Signed-off-by: Shankari Anand <shankari.ak0208@gmail.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Link: https://lore.kernel.org/r/20250820112846.9665-1-shankari.ak0208@gmail.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
0988099646 |
gpu: nova-core: register: add support for relative array registers
Add support for declaring arrays of registers available from a variable base. This is effectively a combination of the relative and array registers features. nova-core does not make much use of this yet, but it will become helpful to have for GSP boot. Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-19-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
ec2f6c81d2 |
gpu: nova-core: falcon: use register arrays for FUSE registers
FUSE registers are an array of 16 consecutive registers. Use the newly available register array feature to define them properly and improve the code using them. Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-18-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
20ed4a8695 |
gpu: nova-core: register: add support for register arrays
Having registers that can be interpreted identically in a contiguous I/O area (or at least, following a given stride) is a common way to organize registers, and is used by NVIDIA hardware. Thus, add a way to simply and safely declare such a layout using the register!() macro. Build-time bound-checking is effective for array accesses performed with a constant. For cases where the index cannot be known at compile time, `try_` variants of the accessors are also made available that return `EINVAL` if the access is out-of-bounds. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-17-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
e617f3a370 |
gpu: nova-core: falcon: add distinct base address for PFALCON2
Falcon engines have two distinct register bases: `PFALCON` and `PFALCON2`. So far we assumed that `PFALCON2` was located at `PFALCON + 0x1000` because that is the case of most engines, but there are exceptions (NVDEC uses `0x1c00`). Fix this shortcoming by leveraging the redesigned relative registers definitions to assign a distinct `PFalcon2Base` base address to each falcon engine. Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-16-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
af10924fc4 |
gpu: nova-core: register: redesign relative registers
The relative registers are currently very unsafe to use: callers can
specify any constant as the base address for access, meaning they can
effectively interpret any I/O address as any relative register.
Ideally, valid base addresses for a family of registers should be
explicitly defined in the code, and could only be used with the relevant
registers
This patch changes the relative register declaration from e.g.:
register!(CPU_CTL @ +0x0000010, "CPU core control" {
0:0 start as bool, "Start the CPU core";
});
into:
register!(CPU_CTL @ CpuCtlBase[0x10], "CPU core control" {
0:0 start as bool, "Start the CPU core";
});
Where `CpuCtlBase` is the name of a ZST used as a parameter of the
`RegisterBase<>` trait to define a trait unique to a class of register.
This specialized trait is then implemented for every type that provides
a valid base address, enabling said types to be passed as the base
address provider for the register's I/O accessor methods.
This design thus makes it impossible to pass an unexpected base address
to a relative register, and, since the valid bases are all known at
compile-time, also guarantees that all I/O accesses are done within the
valid bounds of the I/O range.
[acourbot@nvidia.com: add example in the commit log.]
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20250718-nova-regs-v2-15-7b6a762aa1cd@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
|
||
|
Alexandre Courbot
|
c6bc422527 |
gpu: nova-core: register: use #[inline(always)] for all methods
These methods should always be inlined, so use the strongest compiler hint that exists to maximize the chance they will indeed be. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-14-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
fcdce54d64 |
gpu: nova-core: register: split @io rule into fixed and relative versions
We used the same @io rule with different patterns to define both the fixed and relative I/O accessors. This can be confusing as the matching rules are very similar. Since all call sites know which version they want to call, split @io into @io_fixed and @io_relative to remove any ambiguity. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-13-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
3fa145bef5 |
gpu: nova-core: register: generate correct Default implementation
The `Default` implementation of a register should be the aggregate of the default values of all its fields, and not simply be zeroed. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-12-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
6ecd6b73e0 |
gpu: nova-core: register: improve Debug implementation
Now that we have an internal rule to dispatch field information where needed, use it to generate a better `Debug` implementation where the raw hexadecimal value of the register is displayed, as well as the `Debug` values of its individual fields. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-11-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
7a9cb3dfb0 |
gpu: nova-core: register: add fields dispatcher internal rule
Fields are complex and cumbersome to match in a rule, and were only captured in order to generate the field accessors. However, there are other places (like the `Debug` and `Default` implementations) where we would benefit from having access to at least some of the field information, but refrained from doing so because it would have meant matching the whole fields in a rule more complex than we need. Introduce a new `@fields_dispatcher` internal rule that captures all the field information and passes it to `@field_accessors`. It does not provide any functional change in itself, but allows us to reuse the captured field information partially to provide better `Debug` and `Default` implementations in following patches. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-10-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
9b2379f024 |
gpu: nova-core: register: add missing doccomments for fixed registers I/O accessors
Add the missing doccomments for these accessors, as having a bit of inline documentation is always helpful. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-9-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
e40d2b2616 |
gpu: nova-core: register: fix documentation and indentation
Fix a few documentation inconsistencies, and harmonize indentation where possible. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-8-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
036c5fa250 |
gpu: nova-core: register: move OFFSET declaration to I/O impl block
The OFFSET const is an I/O property, and having to pass it to the @common rule makes it impossible to make I/O optional, as we want to get to eventually. Thus, move OFFSET to the I/O impl block so it is not needed by the @common rule anymore. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-7-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
b567daf4ea |
gpu: nova-core: register: remove try_ accessors for relative registers
Relative registers are always accessed using a literal base, meaning their validity can always be checked at compile-time. Thus remove the `try_` accessors that have no purpose. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-6-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
4f7f8f847d |
gpu: nova-core: register: simplify @leaf_accessor rule
The `$type` metavariable is not used in the @leaf_accessor rule, so remove it. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-5-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
cb2607f3b2 |
gpu: nova-core: register: improve documentation for basic registers
Reword parts of the documentation that were a bit heavy to read, and harmonize/fix the examples. The relative registers section is about to be redesigned and its documentation rewritten, so do not touch this part. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-4-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
c5aeb264b6 |
gpu: nova-core: register: allow fields named offset
`offset` is a common field name, yet using it triggers a build error due to the conflict between the uppercased field constant (which becomes `OFFSET` in this case) containing the bitrange of the field, and the `OFFSET` constant constaining the offset of the register. Fix this by adding `_RANGE` the field's range constant to avoid the name collision. [acourbot@nvidia.com: fix merge conflict due to switch from `as u32` to `u32::from`.] Reported-by: Timur Tabi <ttabi@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-3-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Alexandre Courbot
|
be3536a4bd |
gpu: nova-core: register: add missing space in register!()
A space was missing between arguments in this invocation. [acourbot@nvidia.com: use more descriptive commit title] Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-2-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
John Hubbard
|
5e04ff729f |
gpu: nova-core: register: minor grammar and spelling fixes
There is only one top-level macro in this file at the moment, but the "macros.rs" file name allows for more. Change the wording so that it will remain valid even if additional macros are added to the file. Fix a couple of spelling errors and grammatical errors, and break up a run-on sentence, for clarity. Cc: Alexandre Courbot <acourbot@nvidia.com> Cc: Danilo Krummrich <dakr@kernel.org> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250718-nova-regs-v2-1-7b6a762aa1cd@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Rhys Lloyd
|
2872c8982c |
gpu: nova-core: vbios: change PmuLookupTableEntry to use size_of
Annotate the PmuLookupTableEntry with an `#[repr(C, packed)]` attribute. Removes another magic number by making the struct the same size as the data it needs to read, allowing the use of `size_of::<PmuLookupTableEntry>()` [acourbot@nvidia.com: remove `dead_code` expect to fix `unfulfilled_lint_expectations` lint] Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Rhys Lloyd <krakow20@gmail.com> Link: https://lore.kernel.org/r/20250718073633.194032-3-krakow20@gmail.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Rhys Lloyd
|
0f85b6c1cb |
gpu: nova-core: vbios: use size_of instead of magic number
12 is identical to the value of `size_of::<BitHeader>()`, so use the latter instead. [acourbot@nvidia.com: remove `dead_code` expect to fix `unfulfilled_lint_expectations` lint] Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Rhys Lloyd <krakow20@gmail.com> Link: https://lore.kernel.org/r/20250718073633.194032-2-krakow20@gmail.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> |
||
|
Linus Torvalds
|
352af6a011 |
Rust changes for v6.17
Toolchain and infrastructure:
- Enable a set of Clippy lints: 'ptr_as_ptr', 'ptr_cast_constness',
'as_ptr_cast_mut', 'as_underscore', 'cast_lossless' and 'ref_as_ptr'.
These are intended to avoid type casts with the 'as' operator, which
are quite powerful, into restricted variants that are less powerful
and thus should help to avoid mistakes.
- Remove the 'author' key now that most instances were moved to the
plural one in the previous cycle.
'kernel' crate:
- New 'bug' module: add 'warn_on!' macro which reuses the existing
'BUG'/'WARN' infrastructure, i.e. it respects the usual sysctls and
kernel parameters:
warn_on!(value == 42);
To avoid duplicating the assembly code, the same strategy is followed
as for the static branch code in order to share the assembly between
both C and Rust. This required a few rearrangements on C arch headers
-- the existing C macros should still generate the same outputs, thus
no functional change expected there.
- 'workqueue' module: add delayed work items, including a 'DelayedWork'
struct, a 'impl_has_delayed_work!' macro and an 'enqueue_delayed'
method, e.g.:
/// Enqueue the struct for execution on the system workqueue,
/// where its value will be printed 42 jiffies later.
fn print_later(value: Arc<MyStruct>) {
let _ = workqueue::system().enqueue_delayed(value, 42);
}
- New 'bits' module: add support for 'bit' and 'genmask' functions,
with runtime- and compile-time variants, e.g.:
static_assert!(0b00010000 == bit_u8(4));
static_assert!(0b00011110 == genmask_u8(1..=4));
assert!(checked_bit_u32(u32::BITS).is_none());
- 'uaccess' module: add 'UserSliceReader::strcpy_into_buf', which reads
NUL-terminated strings from userspace into a '&CStr'.
Introduce 'UserPtr' newtype, similar in purpose to '__user' in C, to
minimize mistakes handling userspace pointers, including mixing them
up with integers and leaking them via the 'Debug' trait. Add it to
the prelude, too.
- Start preparations for the replacement of our custom 'CStr' type
with the analogous type in the 'core' standard library. This will
take place across several cycles to make it easier. For this one,
it includes a new 'fmt' module, using upstream method names and some
other cleanups.
Replace 'fmt!' with a re-export, which helps Clippy lint properly,
and clean up the found 'uninlined-format-args' instances.
- 'dma' module:
- Clarify wording and be consistent in 'coherent' nomenclature.
- Convert the 'read!()' and 'write!()' macros to return a 'Result'.
- Add 'as_slice()', 'write()' methods in 'CoherentAllocation'.
- Expose 'count()' and 'size()' in 'CoherentAllocation' and add the
corresponding type invariants.
- Implement 'CoherentAllocation::dma_handle_with_offset()'.
- 'time' module:
- Make 'Instant' generic over clock source. This allows the compiler
to assert that arithmetic expressions involving the 'Instant' use
'Instants' based on the same clock source.
- Make 'HrTimer' generic over the timer mode. 'HrTimer' timers take a
'Duration' or an 'Instant' when setting the expiry time, depending
on the timer mode. With this change, the compiler can check the
type matches the timer mode.
- Add an abstraction for 'fsleep'. 'fsleep' is a flexible sleep
function that will select an appropriate sleep method depending on
the requested sleep time.
- Avoid 64-bit divisions on 32-bit hardware when calculating
timestamps.
- Seal the 'HrTimerMode' trait. This prevents users of the
'HrTimerMode' from implementing the trait on their own types.
- Pass the correct timer mode ID to 'hrtimer_start_range_ns()'.
- 'list' module: remove 'OFFSET' constants, allowing to remove pointer
arithmetic; now 'impl_list_item!' invokes 'impl_has_list_links!' or
'impl_has_list_links_self_ptr!'. Other simplifications too.
- 'types' module: remove 'ForeignOwnable::PointedTo' in favor of a
constant, which avoids exposing the type of the opaque pointer, and
require 'into_foreign' to return non-null.
Remove the 'Either<L, R>' type as well. It is unused, and we want to
encourage the use of custom enums for concrete use cases.
- 'sync' module: implement 'Borrow' and 'BorrowMut' for 'Arc' types
to allow them to be used in generic APIs.
- 'alloc' module: implement 'Borrow' and 'BorrowMut' for 'Box<T, A>';
and 'Borrow', 'BorrowMut' and 'Default' for 'Vec<T, A>'.
- 'Opaque' type: add 'cast_from' method to perform a restricted cast
that cannot change the inner type and use it in callers of
'container_of!'. Rename 'raw_get' to 'cast_into' to match it.
- 'rbtree' module: add 'is_empty' method.
- 'sync' module: new 'aref' submodule to hold 'AlwaysRefCounted' and
'ARef', which are moved from the too general 'types' module which we
want to reduce or eventually remove. Also fix a safety comment in
'static_lock_class'.
'pin-init' crate:
- Add 'impl<T, E> [Pin]Init<T, E> for Result<T, E>', so results are now
(pin-)initializers.
- Add 'Zeroable::init_zeroed()' that delegates to 'init_zeroed()'.
- New 'zeroed()', a safe version of 'mem::zeroed()' and also provide
it via 'Zeroable::zeroed()'.
- Implement 'Zeroable' for 'Option<&T>', 'Option<&mut T>' and for
'Option<[unsafe] [extern "abi"] fn(...args...) -> ret>' for '"Rust"'
and '"C"' ABIs and up to 20 arguments.
- Changed blanket impls of 'Init' and 'PinInit' from 'impl<T, E>
[Pin]Init<T, E> for T' to 'impl<T> [Pin]Init<T> for T'.
- Renamed 'zeroed()' to 'init_zeroed()'.
- Upstream dev news: improve CI more to deny warnings, use
'--all-targets'. Check the synchronization status of the two '-next'
branches in upstream and the kernel.
MAINTAINERS:
- Add Vlastimil Babka, Liam R. Howlett, Uladzislau Rezki and Lorenzo
Stoakes as reviewers (thanks everyone).
And a few other cleanups and improvements.
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Merge tag 'rust-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Enable a set of Clippy lints: 'ptr_as_ptr', 'ptr_cast_constness',
'as_ptr_cast_mut', 'as_underscore', 'cast_lossless' and
'ref_as_ptr'
These are intended to avoid type casts with the 'as' operator,
which are quite powerful, into restricted variants that are less
powerful and thus should help to avoid mistakes
- Remove the 'author' key now that most instances were moved to the
plural one in the previous cycle
'kernel' crate:
- New 'bug' module: add 'warn_on!' macro which reuses the existing
'BUG'/'WARN' infrastructure, i.e. it respects the usual sysctls and
kernel parameters:
warn_on!(value == 42);
To avoid duplicating the assembly code, the same strategy is
followed as for the static branch code in order to share the
assembly between both C and Rust
This required a few rearrangements on C arch headers -- the
existing C macros should still generate the same outputs, thus no
functional change expected there
- 'workqueue' module: add delayed work items, including a
'DelayedWork' struct, a 'impl_has_delayed_work!' macro and an
'enqueue_delayed' method, e.g.:
/// Enqueue the struct for execution on the system workqueue,
/// where its value will be printed 42 jiffies later.
fn print_later(value: Arc<MyStruct>) {
let _ = workqueue::system().enqueue_delayed(value, 42);
}
- New 'bits' module: add support for 'bit' and 'genmask' functions,
with runtime- and compile-time variants, e.g.:
static_assert!(0b00010000 == bit_u8(4));
static_assert!(0b00011110 == genmask_u8(1..=4));
assert!(checked_bit_u32(u32::BITS).is_none());
- 'uaccess' module: add 'UserSliceReader::strcpy_into_buf', which
reads NUL-terminated strings from userspace into a '&CStr'
Introduce 'UserPtr' newtype, similar in purpose to '__user' in C,
to minimize mistakes handling userspace pointers, including mixing
them up with integers and leaking them via the 'Debug' trait. Add
it to the prelude, too
- Start preparations for the replacement of our custom 'CStr' type
with the analogous type in the 'core' standard library. This will
take place across several cycles to make it easier. For this one,
it includes a new 'fmt' module, using upstream method names and
some other cleanups
Replace 'fmt!' with a re-export, which helps Clippy lint properly,
and clean up the found 'uninlined-format-args' instances
- 'dma' module:
- Clarify wording and be consistent in 'coherent' nomenclature
- Convert the 'read!()' and 'write!()' macros to return a 'Result'
- Add 'as_slice()', 'write()' methods in 'CoherentAllocation'
- Expose 'count()' and 'size()' in 'CoherentAllocation' and add
the corresponding type invariants
- Implement 'CoherentAllocation::dma_handle_with_offset()'
- 'time' module:
- Make 'Instant' generic over clock source. This allows the
compiler to assert that arithmetic expressions involving the
'Instant' use 'Instants' based on the same clock source
- Make 'HrTimer' generic over the timer mode. 'HrTimer' timers
take a 'Duration' or an 'Instant' when setting the expiry time,
depending on the timer mode. With this change, the compiler can
check the type matches the timer mode
- Add an abstraction for 'fsleep'. 'fsleep' is a flexible sleep
function that will select an appropriate sleep method depending
on the requested sleep time
- Avoid 64-bit divisions on 32-bit hardware when calculating
timestamps
- Seal the 'HrTimerMode' trait. This prevents users of the
'HrTimerMode' from implementing the trait on their own types
- Pass the correct timer mode ID to 'hrtimer_start_range_ns()'
- 'list' module: remove 'OFFSET' constants, allowing to remove
pointer arithmetic; now 'impl_list_item!' invokes
'impl_has_list_links!' or 'impl_has_list_links_self_ptr!'. Other
simplifications too
- 'types' module: remove 'ForeignOwnable::PointedTo' in favor of a
constant, which avoids exposing the type of the opaque pointer, and
require 'into_foreign' to return non-null
Remove the 'Either<L, R>' type as well. It is unused, and we want
to encourage the use of custom enums for concrete use cases
- 'sync' module: implement 'Borrow' and 'BorrowMut' for 'Arc' types
to allow them to be used in generic APIs
- 'alloc' module: implement 'Borrow' and 'BorrowMut' for 'Box<T, A>';
and 'Borrow', 'BorrowMut' and 'Default' for 'Vec<T, A>'
- 'Opaque' type: add 'cast_from' method to perform a restricted cast
that cannot change the inner type and use it in callers of
'container_of!'. Rename 'raw_get' to 'cast_into' to match it
- 'rbtree' module: add 'is_empty' method
- 'sync' module: new 'aref' submodule to hold 'AlwaysRefCounted' and
'ARef', which are moved from the too general 'types' module which
we want to reduce or eventually remove. Also fix a safety comment
in 'static_lock_class'
'pin-init' crate:
- Add 'impl<T, E> [Pin]Init<T, E> for Result<T, E>', so results are
now (pin-)initializers
- Add 'Zeroable::init_zeroed()' that delegates to 'init_zeroed()'
- New 'zeroed()', a safe version of 'mem::zeroed()' and also provide
it via 'Zeroable::zeroed()'
- Implement 'Zeroable' for 'Option<&T>', 'Option<&mut T>' and for
'Option<[unsafe] [extern "abi"] fn(...args...) -> ret>' for
'"Rust"' and '"C"' ABIs and up to 20 arguments
- Changed blanket impls of 'Init' and 'PinInit' from 'impl<T, E>
[Pin]Init<T, E> for T' to 'impl<T> [Pin]Init<T> for T'
- Renamed 'zeroed()' to 'init_zeroed()'
- Upstream dev news: improve CI more to deny warnings, use
'--all-targets'. Check the synchronization status of the two
'-next' branches in upstream and the kernel
MAINTAINERS:
- Add Vlastimil Babka, Liam R. Howlett, Uladzislau Rezki and Lorenzo
Stoakes as reviewers (thanks everyone)
And a few other cleanups and improvements"
* tag 'rust-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (76 commits)
rust: Add warn_on macro
arm64/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
riscv/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
x86/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust
rust: kernel: move ARef and AlwaysRefCounted to sync::aref
rust: sync: fix safety comment for `static_lock_class`
rust: types: remove `Either<L, R>`
rust: kernel: use `core::ffi::CStr` method names
rust: str: add `CStr` methods matching `core::ffi::CStr`
rust: str: remove unnecessary qualification
rust: use `kernel::{fmt,prelude::fmt!}`
rust: kernel: add `fmt` module
rust: kernel: remove `fmt!`, fix clippy::uninlined-format-args
scripts: rust: emit path candidates in panic message
scripts: rust: replace length checks with match
rust: list: remove nonexistent generic parameter in link
rust: bits: add support for bits/genmask macros
rust: list: remove OFFSET constants
rust: list: add `impl_list_item!` examples
rust: list: use fully qualified path
...
|
||
|
Miguel Ojeda
|
924740496b |
gpu: nova-core: fix up formatting after merge
In the merge 260f6f4fda93 ("Merge tag 'drm-next-2025-07-30' of
https://gitlab.freedesktop.org/drm/kernel"), the formatting in the
conflict resolution doesn't match what `make rustfmt` wants to make it.
Fix it up appropriately.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Linus Torvalds
|
260f6f4fda |
drm for 6.17-rc1
non-drm: rust: - 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 -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmiJM/0ACgkQDHTzWXnE hr6MpA/+JJKGdSdrE95QkaMcOZh/3e3areGXZ0V/RrrJXdB4/DoAfQSHhF0H7m7y MhBGVLGNMXq7KHrz28p1MjLHrE1mwmvJ6hZ4J076ed4u9naoCD0m6k5w5wiue+KL HyPR54ADxN0BYmgV0l/B0wj42KsHyTO4x4hdqPJu02V9Dtmx6FCh2ujkOF3p9nbK GMwWDttl4KEKljD0IvQ9YIYJ66crYGx/XmZi7JoWRrS104K/h1u8qZuXBp5jVKTy OZRAVyLdmJqdTOLH7l599MBBcEd/bNV37/LVwF4T5iFunEKOAiyN0QY0OR+IeRVh ZfOv2/gp4UNyIfyahQ7LKLgEilNPGHoPitvDJPvBZxW2UjwXVNvA1QfdK5DAlVRS D5NoFRjlFFCz8/c2hQwlKJ9o7eVgH3/pK0mwR7SPGQTuqzLFCrAfCuzUvg/gV++6 JFqmGKMHeCoxO2o4GMrwjFttStP41usxtV/D+grcbPteNO9UyKJS4C38n4eamJXM a9Sy9APuAb6F0w5+yMItEF7TQifgmhIbm5AZHlxE1KoDQV6TdiIf1Gou5LeDGoL6 OACbXHJPL52tUnfCRpbfI4tE/IVyYsfL01JnvZ5cZZWItXfcIz76ykJri+E0G60g yRl/zkimHKO4B0l/HSzal5xROXr+3VzeWehEiz/ot1VriP5OesA= =n9MO -----END PGP SIGNATURE----- Merge tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel 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 ... |
||
|
Tamir Duberstein
|
f411b7eddd |
rust: kernel: remove fmt!, fix clippy::uninlined-format-args
Rather than export a macro that delegates to `core::format_args`, simply
re-export `core::format_args` as `fmt` from the prelude. This exposes
clippy warnings which were previously obscured by this macro, such as:
warning: variables can be used directly in the `format!` string
--> ../drivers/cpufreq/rcpufreq_dt.rs:21:43
|
21 | let prop_name = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
| ^^^^^^^^^^^^^^^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
= note: `-W clippy::uninlined-format-args` implied by `-W clippy::all`
= help: to override `-W clippy::all` add `#[allow(clippy::uninlined_format_args)]`
help: change this to
|
21 - let prop_name = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
21 + let prop_name = CString::try_from_fmt(fmt!("{name}-supply")).ok()?;
|
Thus fix them in the same commit. This could possibly be fixed in two
stages, but the diff is small enough (outside of kernel/str.rs) that I
hope it can be taken in a single commit.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250704-core-cstr-prepare-v1-1-a91524037783@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|