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| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Bagas Sanjaya
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9d079868ae |
Documentation: fb: Retitle driver docs
Many framebuffer driver docs are copied from vesafb docs as their template, including "What is <driver name>" title. Such title implies the introductory section, however, and not the whole docs. Retitle them. Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de> |
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Bagas Sanjaya
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9070fbcb9a |
Documentation: fb: ep93xx: Demote section headings
Section headings are formatted the same as title heading, thus increasing number of entries in framebuffer toctree. Demote them. Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de> |
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Bagas Sanjaya
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7a6e249f90 |
Documentation: fb: Split toctree
Framebuffer docs toctree consists of driver-independent docs (e.g. API docs) and driver-specific docs. The latter has much more entries. Group the docs into separate toctrees. Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de> |
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Linus Torvalds
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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 ... |
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Ian Rogers
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2836ed1748 |
perf capstone: Remove open_capstone_handle
open_capstone_handle is similar to capstone_init and used only by symbol__disassemble_capstone. symbol__disassemble_capstone_powerpc already uses capstone_init, transition symbol__disassemble_capstone and eliminate open_capstone_handle. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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95931d9a59 |
perf libbfd: Move libbfd functionality to its own file
Move symbolization and srcline libbfd dependencies to a separate libbfd.c. This mirrors moving llvm and capstone code. While this code is deprecated as it is part of BUILD_NONDISTRO license incompatible code, moving the code to its own file minimizes disruption in the main files. disasm_bpf.c is moved to libbfd.c also except for symbol__disassemble_bpf_image which is currently more of a placeholder function rather than something that provides disassembly support. demangle-cxx.cpp code isn't migrated as it is very limited. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ian Rogers
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d9007afca0 |
perf llvm: Move llvm functionality into its own file
LLVM disassembly support was in disasm.c and addr2line support in srcline.c. Move support out of these files into llvm.[ch] and remove LLVM includes from those files. As disassembly routines can fail, make failure the only option without HAVE_LIBLLVM_SUPPORT. For simplicity's sake, duplicate the read_symbol utility function. The intent with moving LLVM support into a single file is that dynamic support, using dlopen for libllvm, can be added in later patches. This can potentially always succeed or fail, so relying on ifdefs isn't sufficient. Using dlopen is a useful option to minimize the perf tools dependencies and potentially size. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linus Torvalds
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05a54fa773 |
sound updates for 6.18-rc1
It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support
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Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support"
* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
ALSA: doc: improved docs about quirk_flags in snd-usb-audio
ALSA: usb-audio: make param quirk_flags change-able in runtime
ALSA: usb-audio: improve module param quirk_flags
ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
ALSA: usb-audio: add mono main switch to Presonus S1824c
ALSA: compress: document 'chan_map' member in snd_dec_opus
ASoC: cs35l56: Add support for CS35L56 B2 silicon
ASoC: cs35l56: Set fw_regs table after getting REVID
ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
ASoc: tas2783A: Fix an error code in probe()
ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
ASoC: stm32: sai: manage context in set_sysclk callback
ASoC: renesas: msiof: ignore 1st FSERR
ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
ASoC: renesas: msiof: tidyup DMAC stop timing
...
|
||
|
Ian Rogers
|
bbb99668b5 |
perf capstone: Move capstone functionality into its own file
Capstone disassembly support was split between disasm.c and print_insn.c. Move support out of these files into capstone.[ch] and remove include capstone/capstone.h from those files. As disassembly routines can fail, make failure the only option without HAVE_LIBCAPSTONE_SUPPORT. For simplicity's sake, duplicate the read_symbol utility function. The intent with moving capstone support into a single file is that dynamic support, using dlopen for libcapstone, can be added in later patches. This can potentially always succeed or fail, so relying on ifdefs isn't sufficient. Using dlopen is a useful option to minimize the perf tools dependencies and potentially size. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
c0b8a55a11 |
perf map: Constify objdump offset/address conversion APIs
Make the map argument const as the conversion act won't modify the map and this allows other callers to use a const struct map. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Bill Wendling <morbo@google.com> Cc: Charlie Jenkins <charlie@rivosinc.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
Dapeng Mi
|
cbeb3d4784 |
perf tools kvm: Use "cycles" to sample guest for "kvm top" on Intel
As same reason with previous patch, use "cyles" instead of "cycles:P"
event by default to sample guest for "perf kvm top" command on Intel
platforms.
Fixes:
|
||
|
Dapeng Mi
|
c1afca106e |
perf tools kvm: Use "cycles" to sample guest for "kvm record" on Intel
After KVM supports PEBS for guest on Intel platforms
(https://lore.kernel.org/all/20220411101946.20262-1-likexu@tencent.com/),
host loses the capability to sample guest with PEBS since all PEBS related
MSRs are switched to guest value after vm-entry, like IA32_DS_AREA MSR is
switched to guest GVA at vm-entry. This would lead to "perf kvm record"
fails to sample guest on Intel platforms since "cycles:P" event is used to
sample guest by default as below case shows.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.787 MB perf.data.guest ]
So to ensure guest record can be sampled successfully, use "cycles"
instead of "cycles:P" to sample guest record by default on Intel
platforms. With this patch, the guest record can be sampled
successfully.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.783 MB perf.data.guest (23 samples) ]
Fixes:
|
||
|
Dapeng Mi
|
0f53264d71 |
perf tools: Add helper x86__is_intel_cpu()
Add helper x86__is_intel_cpu() to indicate if it's a x86 intel platform. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
45ff39f6e7 |
perf tools kvm: Fix the potential out of range memory access issue
kvm_add_default_arch_event() helper may add 2 extra options but it directly modifies the original argv[] array. This may cause out of range memory access. Fix this issue. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
6f58cf1045 |
perf tools kwork: Add missed memory allocation check and free
Same with previous builtin-kvm code, perf_kwork__record() doesn't check the memory allocation and explicitly free the allocated memory. Just fix it. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Dapeng Mi
|
9262fa242b |
perf tools kvm: Add missed memory allocation check and free
Current code allocates rec_argv[] array, but doesn't check if the allocation is successful and explicitly free the rec_argv[] array. Add them back. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
f0015d8149 |
tools include: Add headers to make tools builds more hermetic
tools/lib/bpf/netlink.c depends on rtnetlink.h and genetlink.h (via nlattr.h) which then depends on if_addr.h. tools/bpf/bpftool/link.c depends on netfilter_arp.h which then depends on netfilter.h. Update check-headers.sh to keep these in sync. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
57a64919f2 |
tools include: Replace tools linux/gfp_types.h with kernel version
Previously the header gfp_types.h in tools points to the gfp_types.h in include/linux. This is a problem for tools like perf, since the tools header is supposed to be independent of the kernel headers. Therefore this patch copies the kernel header to the tools header and adds a header check. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
f38ce0209a |
tools bitmap: Add missing asm-generic/bitsperlong.h include
small_const_nbits is defined in asm-generic/bitsperlong.h which bitmap.h uses but doesn't include causing build failures in some build systems. Add the missing #include. Note the bitmap.h in tools has diverged from that of the kernel, so no changes are made there. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Yury Norov <yury.norov@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yuyang Huang <yuyanghuang@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
83fde0ee8f |
perf bench futex: Add missing stdbool.h
futex.h uses bool but lacks stdbool.h which causes build failures in some build systems. Add the missing #include. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Darren Hart <dvhart@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Ido Schimmel <idosch@nvidia.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jason Xing <kerneljasonxing@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Maurice Lambert <mauricelambert434@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Machata <petrm@nvidia.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yury Norov <yury.norov@gmail.com> Cc: Yuyang Huang <yuyanghuang@google.com> Link: https://lore.kernel.org/r/20250905224708.2469021-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
a272195f1c |
perf test: Stat std output don't fail metric only
When running on a hypervisor the expected IPC metric may be missing as the events may fail to be read. Don't expect metric output for this test to avoid it failing. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Veronika Molnarova <vmolnaro@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
8dc364fa48 |
libperf mmap: In user mmap rdpmc avoid undefined behavior
A shift left of a signed 64-bit s64 may overflow and result in undefined behavior caught by ubsan. Switch to a u64 instead. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ian Rogers
|
de1111f91a |
perf symbol-minimal: Be more defensive when reading build IDs
The note_data at ptr is read as a nhdr but this may yield out-of-bounds reads if there isn't nhdrs worth of data. Be more defensive before doing the reads. This is motivated by address sanitizer capturing out of bounds reads running "perf top". Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
Sam James
|
4fc844347e |
perf bpf: Use __builtin_preserve_field_info for GCC compatibility
When exploring building bpf_skel with GCC's BPF support, there was a
build failure because of bpf_core_field_exists vs the mem_hops bitfield:
```
In file included from util/bpf_skel/sample_filter.bpf.c:6:
util/bpf_skel/sample_filter.bpf.c: In function 'perf_get_sample':
tools/perf/libbpf/include/bpf/bpf_core_read.h:169:42: error: cannot take address of bit-field 'mem_hops'
169 | #define ___bpf_field_ref1(field) (&(field))
| ^
tools/perf/libbpf/include/bpf/bpf_helpers.h:222:29: note: in expansion of macro '___bpf_field_ref1'
222 | #define ___bpf_concat(a, b) a ## b
| ^
tools/perf/libbpf/include/bpf/bpf_helpers.h:225:29: note: in expansion of macro '___bpf_concat'
225 | #define ___bpf_apply(fn, n) ___bpf_concat(fn, n)
| ^~~~~~~~~~~~~
tools/perf/libbpf/include/bpf/bpf_core_read.h:173:9: note: in expansion of macro '___bpf_apply'
173 | ___bpf_apply(___bpf_field_ref, ___bpf_narg(args))(args)
| ^~~~~~~~~~~~
tools/perf/libbpf/include/bpf/bpf_core_read.h:188:39: note: in expansion of macro '___bpf_field_ref'
188 | __builtin_preserve_field_info(___bpf_field_ref(field), BPF_FIELD_EXISTS)
| ^~~~~~~~~~~~~~~~
util/bpf_skel/sample_filter.bpf.c:167:29: note: in expansion of macro 'bpf_core_field_exists'
167 | if (bpf_core_field_exists(data->mem_hops))
| ^~~~~~~~~~~~~~~~~~~~~
cc1: error: argument is not a field access
```
___bpf_field_ref1 was adapted for GCC in
|
||
|
Linus Torvalds
|
e1b1d03cee |
for-6.18/block-20250929
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Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- FC target fixes (Daniel)
- Authentication fixes and updates (Martin, Chris)
- Admin controller handling (Kamaljit)
- Target lockdep assertions (Max)
- Keep-alive updates for discovery (Alastair)
- Suspend quirk (Georg)
- MD pull request via Yu:
- Add support for a lockless bitmap.
A key feature for the new bitmap are that the IO fastpath is
lockless. If a user issues lots of write IO to the same bitmap
bit in a short time, only the first write has additional overhead
to update bitmap bit, no additional overhead for the following
writes.
By supporting only resync or recover written data, means in the
case creating new array or replacing with a new disk, there is no
need to do a full disk resync/recovery.
- Switch ->getgeo() and ->bios_param() to using struct gendisk rather
than struct block_device.
- Rust block changes via Andreas. This series adds configuration via
configfs and remote completion to the rnull driver. The series also
includes a set of changes to the rust block device driver API: a few
cleanup patches, and a few features supporting the rnull changes.
The series removes the raw buffer formatting logic from
`kernel::block` and improves the logic available in `kernel::string`
to support the same use as the removed logic.
- floppy arch cleanups
- Reduce the number of dereferencing needed for ublk commands
- Restrict supported sockets for nbd. Mostly done to eliminate a class
of issues perpetually reported by syzbot, by using nonsensical socket
setups.
- A few s390 dasd block fixes
- Fix a few issues around atomic writes
- Improve DMA interation for integrity requests
- Improve how iovecs are treated with regards to O_DIRECT aligment
constraints.
We used to require each segment to adhere to the constraints, now
only the request as a whole needs to.
- Clean up and improve p2p support, enabling use of p2p for metadata
payloads
- Improve locking of request lookup, using SRCU where appropriate
- Use page references properly for brd, avoiding very long RCU sections
- Fix ordering of recursively submitted IOs
- Clean up and improve updating nr_requests for a live device
- Various fixes and cleanups
* tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (164 commits)
s390/dasd: enforce dma_alignment to ensure proper buffer validation
s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request
ublk: remove redundant zone op check in ublk_setup_iod()
nvme: Use non zero KATO for persistent discovery connections
nvmet: add safety check for subsys lock
nvme-core: use nvme_is_io_ctrl() for I/O controller check
nvme-core: do ioccsz/iorcsz validation only for I/O controllers
nvme-core: add method to check for an I/O controller
blk-cgroup: fix possible deadlock while configuring policy
blk-mq: fix null-ptr-deref in blk_mq_free_tags() from error path
blk-mq: Fix more tag iteration function documentation
selftests: ublk: fix behavior when fio is not installed
ublk: don't access ublk_queue in ublk_unmap_io()
ublk: pass ublk_io to __ublk_complete_rq()
ublk: don't access ublk_queue in ublk_need_complete_req()
ublk: don't access ublk_queue in ublk_check_commit_and_fetch()
ublk: don't pass ublk_queue to ublk_fetch()
ublk: don't access ublk_queue in ublk_config_io_buf()
ublk: don't access ublk_queue in ublk_check_fetch_buf()
ublk: pass q_id and tag to __ublk_check_and_get_req()
...
|
||
Mark Brown
|
aefada95fb |
ASoC: SOF: ipc4/Intel: Fix the host buffer
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>: The size of the DSP host buffer was incorrectly defined as 2ms while it is 4ms and the ChainDMA PCMs are using 5ms as host facing buffer. The constraint will be set against the period time rather than the buffer time to make sure that application will not face with xruns when the DMA bursts to refill the host buffer. The minimal period size will be also used by Pipewire in case of SOF cards to set the headroom to a length which will avoid the cases when the hw_ptr jumps over the appl_ptr because of a burst. Iow, it will make Pipewire to keep a safe distance from the hw_ptr. https://github.com/thesofproject/linux/issues/5284 https://gitlab.freedesktop.org/pipewire/wireplumber/-/merge_requests/740 https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2548 |
||
|
Linus Torvalds
|
5832d26433 |
for-6.18/io_uring-20250929
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Merge tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring updates from Jens Axboe:
- Store ring provided buffers locally for the users, rather than stuff
them into struct io_kiocb.
These types of buffers must always be fully consumed or recycled in
the current context, and leaving them in struct io_kiocb is hence not
a good ideas as that struct has a vastly different life time.
Basically just an architecture cleanup that can help prevent issues
with ring provided buffers in the future.
- Support for mixed CQE sizes in the same ring.
Before this change, a CQ ring either used the default 16b CQEs, or it
was setup with 32b CQE using IORING_SETUP_CQE32. For use cases where
a few 32b CQEs were needed, this caused everything else to use big
CQEs. This is wasteful both in terms of memory usage, but also memory
bandwidth for the posted CQEs.
With IORING_SETUP_CQE_MIXED, applications may use request types that
post both normal 16b and big 32b CQEs on the same ring.
- Add helpers for async data management, to make it harder for opcode
handlers to mess it up.
- Add support for multishot for uring_cmd, which ublk can use. This
helps improve efficiency, by providing a persistent request type that
can trigger multiple CQEs.
- Add initial support for ring feature querying.
We had basic support for probe operations, but the API isn't great.
Rather than expand that, add support for QUERY which is easily
expandable and can cover a lot more cases than the existing probe
support. This will help applications get a better idea of what
operations are supported on a given host.
- zcrx improvements from Pavel:
- Improve refill entry alignment for better caching
- Various cleanups, especially around deduplicating normal
memory vs dmabuf setup.
- Generalisation of the niov size (Patch 12). It's still hard
coded to PAGE_SIZE on init, but will let the user to specify
the rx buffer length on setup.
- Syscall / synchronous bufer return. It'll be used as a slow
fallback path for returning buffers when the refill queue is
full. Useful for tolerating slight queue size misconfiguration
or with inconsistent load.
- Accounting more memory to cgroups.
- Additional independent cleanups that will also be useful for
mutli-area support.
- Various fixes and cleanups
* tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (68 commits)
io_uring/cmd: drop unused res2 param from io_uring_cmd_done()
io_uring: fix nvme's 32b cqes on mixed cq
io_uring/query: cap number of queries
io_uring/query: prevent infinite loops
io_uring/zcrx: account niov arrays to cgroup
io_uring/zcrx: allow synchronous buffer return
io_uring/zcrx: introduce io_parse_rqe()
io_uring/zcrx: don't adjust free cache space
io_uring/zcrx: use guards for the refill lock
io_uring/zcrx: reduce netmem scope in refill
io_uring/zcrx: protect netdev with pp_lock
io_uring/zcrx: rename dma lock
io_uring/zcrx: make niov size variable
io_uring/zcrx: set sgt for umem area
io_uring/zcrx: remove dmabuf_offset
io_uring/zcrx: deduplicate area mapping
io_uring/zcrx: pass ifq to io_zcrx_alloc_fallback()
io_uring/zcrx: check all niovs filled with dma addresses
io_uring/zcrx: move area reg checks into io_import_area
io_uring/zcrx: don't pass slot to io_zcrx_create_area
...
|
||
Arnaldo Carvalho de Melo
|
a395168059 |
tools build: Don't assume libtracefs-devel is always available
perf doesn't use libtracefs and so it doesn't make sense to assume it is always available when building test-all.bin, defeating the feature check speedup it provides. The other tools/build/ users such as rtla, rv, etc call $(feature_check libtracefs) to check its availability instead of using the test-all.bin mechanism, stopping the build and asking for libtracefs-devel to be installed. Remove it from FEATURE_TESTS_BASIC to not have it as available, as noted by Ian Rogers during review. Reviewed-by: Ian Rogers <irogers@google.com> Acked-by: Tomas Glozar <tglozar@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Linus Torvalds
|
77633c77ee |
bitmap-for-6.18
Bits-related paches for 6.17: - FIELD_PREP_WM16() consolidation (Nicolas); - bitmaps for Rust (Burak); - __fls() fix for arc (Kees). -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmja3TMACgkQsUSA/Tof vshf2wv/fuqPq6ZQZGxrC+YKGrTKjAx6sFpYLqZoCgp1K4zgwFwYO3RG1KwlEsS5 a+OAOeR7y73JfKHHBd1WBFnZFz/Vv8A18ah0XDKko/Ufy7jSHJ0Nu1RAofSGjqUW Pv34NCAmcvMB+gg4oDtmHlx/4FFFsSCqi4PdYTrnRMst7gEdhrQH95WL/DrhVnKt fen6NAsNLtlgJXCTghp8dU4ZkZ+V1iez4i81oxoWpPVxAptS2nrsCrkUzA1l1OpK X/OKW/I3O6vjmRNHW6Bq1WzgIlxyOrqb8iYAI8QLYSeuviLcbpGwQbfwD3IgsQjP TuRvfSVEiX2YZEbYn15VSb+hD9+IUi+XonJzTTNoKpIhINMkj/Z0jApMkGqQgcII IhyN+BNB2R9zqbatLkXwEQpuLFM7rxHRR03O0xfoDG6m9vOx9+LFlM/BqzJ7FWzQ kCRbrjSuoiIGFb1a8wqhZDh1jbgX8kj0t3cYsyWhA82Jt7XMckbTrWRICWSOfvXb QAJd72xT =Z/BH -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.18' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: - FIELD_PREP_WM16() consolidation (Nicolas) - bitmaps for Rust (Burak) - __fls() fix for arc (Kees) * tag 'bitmap-for-6.18' of https://github.com/norov/linux: (25 commits) rust: add dynamic ID pool abstraction for bitmap rust: add find_bit_benchmark_rust module. rust: add bitmap API. rust: add bindings for bitops.h rust: add bindings for bitmap.h phy: rockchip-pcie: switch to FIELD_PREP_WM16 macro clk: sp7021: switch to FIELD_PREP_WM16 macro PCI: dw-rockchip: Switch to FIELD_PREP_WM16 macro PCI: rockchip: Switch to FIELD_PREP_WM16* macros net: stmmac: dwmac-rk: switch to FIELD_PREP_WM16 macro ASoC: rockchip: i2s-tdm: switch to FIELD_PREP_WM16_CONST macro drm/rockchip: dw_hdmi: switch to FIELD_PREP_WM16* macros phy: rockchip-usb: switch to FIELD_PREP_WM16 macro drm/rockchip: inno-hdmi: switch to FIELD_PREP_WM16 macro drm/rockchip: dw_hdmi_qp: switch to FIELD_PREP_WM16 macro phy: rockchip-samsung-dcphy: switch to FIELD_PREP_WM16 macro drm/rockchip: vop2: switch to FIELD_PREP_WM16 macro drm/rockchip: dsi: switch to FIELD_PREP_WM16* macros phy: rockchip-emmc: switch to FIELD_PREP_WM16 macro drm/rockchip: lvds: switch to FIELD_PREP_WM16 macro ... |
||
|
Linus Torvalds
|
d7a018eb76 |
Kernel Concurrency Sanitizer (KCSAN) updates for v6.18
- Replace deprecated strcpy() with strscpy() This change has had 6 weeks of linux-next exposure. -----BEGIN PGP SIGNATURE----- iIcEABYKAC8WIQR7t4b/75lzOR3l5rcxsLN3bbyLnwUCaNpmMxEcZWx2ZXJAZ29v Z2xlLmNvbQAKCRAxsLN3bbyLnxmiAP0cwJKy4B307v7TJUCrvXVqXJtyuGmdBdKv j2MOuvt4ygD9HIVd/pFeFkjH0MVNuSbYNl1ICb/UK+vx/5MA/doXPAM= =jiYN -----END PGP SIGNATURE----- Merge tag 'kcsan-20250929-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux Pull Kernel Concurrency Sanitizer (KCSAN) update from Marco Elver: - Replace deprecated strcpy() with strscpy() * tag 'kcsan-20250929-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux: kcsan: test: Replace deprecated strcpy() with strscpy() |
||
Hengqi Chen
|
8b51b11b3d |
LoongArch: BPF: Sign-extend struct ops return values properly
The ns_bpf_qdisc selftest triggers a kernel panic:
Oops[#1]:
CPU 0 Unable to handle kernel paging request at virtual address 0000000000741d58, era == 90000000851b5ac0, ra == 90000000851b5aa4
CPU: 0 UID: 0 PID: 449 Comm: test_progs Tainted: G OE 6.16.0+ #3 PREEMPT(full)
Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 2/2/2022
pc 90000000851b5ac0 ra 90000000851b5aa4 tp 90000001076b8000 sp 90000001076bb600
a0 0000000000741ce8 a1 0000000000000001 a2 90000001076bb5c0 a3 0000000000000008
a4 90000001004c4620 a5 9000000100741ce8 a6 0000000000000000 a7 0100000000000000
t0 0000000000000010 t1 0000000000000000 t2 9000000104d24d30 t3 0000000000000001
t4 4f2317da8a7e08c4 t5 fffffefffc002f00 t6 90000001004c4620 t7 ffffffffc61c5b3d
t8 0000000000000000 u0 0000000000000001 s9 0000000000000050 s0 90000001075bc800
s1 0000000000000040 s2 900000010597c400 s3 0000000000000008 s4 90000001075bc880
s5 90000001075bc8f0 s6 0000000000000000 s7 0000000000741ce8 s8 0000000000000000
ra: 90000000851b5aa4 __qdisc_run+0xac/0x8d8
ERA: 90000000851b5ac0 __qdisc_run+0xc8/0x8d8
CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE)
PRMD: 00000004 (PPLV0 +PIE -PWE)
EUEN: 00000007 (+FPE +SXE +ASXE -BTE)
ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7)
ESTAT: 00010000 [PIL] (IS= ECode=1 EsubCode=0)
BADV: 0000000000741d58
PRID: 0014c010 (Loongson-64bit, Loongson-3A5000)
Modules linked in: bpf_testmod(OE) [last unloaded: bpf_testmod(OE)]
Process test_progs (pid: 449, threadinfo=000000009af02b3a, task=00000000e9ba4956)
Stack : 0000000000000000 90000001075bc8ac 90000000869524a8 9000000100741ce8
90000001075bc800 9000000100415300 90000001075bc8ac 0000000000000000
900000010597c400 900000008694a000 0000000000000000 9000000105b59000
90000001075bc800 9000000100741ce8 0000000000000050 900000008513000c
9000000086936000 0000000100094d4c fffffff400676208 0000000000000000
9000000105b59000 900000008694a000 9000000086bf0dc0 9000000105b59000
9000000086bf0d68 9000000085147010 90000001075be788 0000000000000000
9000000086bf0f98 0000000000000001 0000000000000010 9000000006015840
0000000000000000 9000000086be6c40 0000000000000000 0000000000000000
0000000000000000 4f2317da8a7e08c4 0000000000000101 4f2317da8a7e08c4
...
Call Trace:
[<90000000851b5ac0>] __qdisc_run+0xc8/0x8d8
[<9000000085130008>] __dev_queue_xmit+0x578/0x10f0
[<90000000853701c0>] ip6_finish_output2+0x2f0/0x950
[<9000000085374bc8>] ip6_finish_output+0x2b8/0x448
[<9000000085370b24>] ip6_xmit+0x304/0x858
[<90000000853c4438>] inet6_csk_xmit+0x100/0x170
[<90000000852b32f0>] __tcp_transmit_skb+0x490/0xdd0
[<90000000852b47fc>] tcp_connect+0xbcc/0x1168
[<90000000853b9088>] tcp_v6_connect+0x580/0x8a0
[<90000000852e7738>] __inet_stream_connect+0x170/0x480
[<90000000852e7a98>] inet_stream_connect+0x50/0x88
[<90000000850f2814>] __sys_connect+0xe4/0x110
[<90000000850f2858>] sys_connect+0x18/0x28
[<9000000085520c94>] do_syscall+0x94/0x1a0
[<9000000083df1fb8>] handle_syscall+0xb8/0x158
Code: 4001ad80 2400873f 2400832d <240073cc> 001137ff 001133ff 6407b41f 001503cc 0280041d
---[ end trace 0000000000000000 ]---
The bpf_fifo_dequeue prog returns a skb which is a pointer. The pointer
is treated as a 32bit value and sign extend to 64bit in epilogue. This
behavior is right for most bpf prog types but wrong for struct ops which
requires LoongArch ABI.
So let's sign extend struct ops return values according to the LoongArch
ABI ([1]) and return value spec in function model.
[1]: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Hengqi Chen
|
de2c0b7788 |
LoongArch: BPF: Make error handling robust in arch_prepare_bpf_trampoline()
Bail out instead of trying to perform a bpf_arch_text_copy() if __arch_prepare_bpf_trampoline() failed. Cc: stable@vger.kernel.org Tested-by: Vincent Li <vincent.mc.li@gmail.com> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Hengqi Chen
|
ea645cfd3d |
LoongArch: BPF: Make trampoline size stable
When attach fentry/fexit BPF programs, __arch_prepare_bpf_trampoline()
is called twice with different `struct bpf_tramp_image *im`:
bpf_trampoline_update()
-> arch_bpf_trampoline_size()
-> __arch_prepare_bpf_trampoline()
-> arch_prepare_bpf_trampoline()
-> __arch_prepare_bpf_trampoline()
Use move_imm() will emit unstable instruction sequences, so let's use
move_addr() instead to prevent subtle bugs.
(I observed this while debugging other issues with printk.)
Cc: stable@vger.kernel.org
Tested-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
|
||
|
Hengqi Chen
|
a04731cbee |
LoongArch: BPF: Don't align trampoline size
Currently, arch_alloc_bpf_trampoline() use bpf_prog_pack_alloc() which will pack multiple trampolines into a huge page. So, no need to assume the trampoline size is page aligned. Cc: stable@vger.kernel.org Tested-by: Vincent Li <vincent.mc.li@gmail.com> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Hengqi Chen
|
e82406c7cb |
LoongArch: BPF: No support of struct argument in trampoline programs
The current implementation does not support struct argument. This causes
a oops when running bpf selftest:
$ ./test_progs -a tracing_struct
Oops[#1]:
CPU -1 Unable to handle kernel paging request at virtual address 0000000000000018, era == 9000000085bef268, ra == 90000000844f3938
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (19 ticks this GP) idle=1094/1/0x4000000000000000 softirq=1380/1382 fqs=801
rcu: (detected by 0, t=5252 jiffies, g=1197, q=52 ncpus=4)
Sending NMI from CPU 0 to CPUs 1:
rcu: rcu_preempt kthread starved for 2495 jiffies! g1197 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=2
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:0 pid:15 tgid:15 ppid:2 task_flags:0x208040 flags:0x00000800
Stack : 9000000100423e80 0000000000000402 0000000000000010 90000001003b0680
9000000085d88000 0000000000000000 0000000000000040 9000000087159350
9000000085c2b9b0 0000000000000001 900000008704a000 0000000000000005
00000000ffff355b 00000000ffff355b 0000000000000000 0000000000000004
9000000085d90510 0000000000000000 0000000000000002 7b5d998f8281e86e
00000000ffff355c 7b5d998f8281e86e 000000000000003f 9000000087159350
900000008715bf98 0000000000000005 9000000087036000 900000008704a000
9000000100407c98 90000001003aff80 900000008715c4c0 9000000085c2b9b0
00000000ffff355b 9000000085c33d3c 00000000000000b4 0000000000000000
9000000007002150 00000000ffff355b 9000000084615480 0000000007000002
...
Call Trace:
[<9000000085c2a868>] __schedule+0x410/0x1520
[<9000000085c2b9ac>] schedule+0x34/0x190
[<9000000085c33d38>] schedule_timeout+0x98/0x140
[<90000000845e9120>] rcu_gp_fqs_loop+0x5f8/0x868
[<90000000845ed538>] rcu_gp_kthread+0x260/0x2e0
[<900000008454e8a4>] kthread+0x144/0x238
[<9000000085c26b60>] ret_from_kernel_thread+0x28/0xc8
[<90000000844f20e4>] ret_from_kernel_thread_asm+0xc/0x88
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 2:
NMI backtrace for cpu 2 skipped: idling at idle_exit+0x0/0x4
Reject it for now.
Cc: stable@vger.kernel.org
Fixes:
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Hengqi Chen
|
3d770bd11b |
LoongArch: BPF: No text_poke() for kernel text
The current implementation of bpf_arch_text_poke() requires 5 nops at patch site which is not applicable for kernel/module functions. Because LoongArch reserves ONLY 2 nops at the function entry. With CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y, this can be done by ftrace instead. See the following commit for details: * commit |
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Hengqi Chen
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b0f50dc09b |
LoongArch: BPF: Remove duplicated bpf_flush_icache()
The bpf_flush_icache() is called by bpf_arch_text_copy() already. So remove it. This has been done in arm64 and riscv. Cc: stable@vger.kernel.org Tested-by: Vincent Li <vincent.mc.li@gmail.com> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Hengqi Chen
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909d3e3f51 |
LoongArch: BPF: Remove duplicated flags check
The check for (BPF_TRAMP_F_ORIG_STACK | BPF_TRAMP_F_SHARE_IPMODIFY) is duplicated in __arch_prepare_bpf_trampoline(). Remove it. While at it, make sure stack_size and nargs are initialized once. Cc: stable@vger.kernel.org Tested-by: Vincent Li <vincent.mc.li@gmail.com> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Huacai Chen
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7b6c2d172d |
LoongArch: BPF: Fix uninitialized symbol 'retval_off'
In __arch_prepare_bpf_trampoline(), retval_off is meaningful only when
save_ret is not 0, so the current logic is correct. But it may cause a
build warning:
arch/loongarch/net/bpf_jit.c:1547 __arch_prepare_bpf_trampoline() error: uninitialized symbol 'retval_off'.
So initialize retval_off unconditionally to fix it.
Cc: stable@vger.kernel.org
Fixes:
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Tiezhu Yang
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24ff0347bb |
LoongArch: BPF: Optimize sign-extention mov instructions
For 8-bit and 16-bit sign-extention mov instructions, it can use the native instructions ext.w.b and ext.w.h directly, no need to use the temporary t1 register, just remove the redundant operations. Here are the test results: # modprobe test_bpf test_range=81,84 # dmesg -t | tail -5 test_bpf: #81 ALU_MOVSX | BPF_B jited:1 5 PASS test_bpf: #82 ALU_MOVSX | BPF_H jited:1 5 PASS test_bpf: #83 ALU64_MOVSX | BPF_B jited:1 5 PASS test_bpf: #84 ALU64_MOVSX | BPF_H jited:1 5 PASS test_bpf: Summary: 4 PASSED, 0 FAILED, [4/4 JIT'ed] Acked-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Tiezhu Yang
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db740f5689 |
LoongArch: Handle new atomic instructions for probes
The atomic instructions sc.q, llacq.{w/d}, screl.{w/d} were newly added
in the LoongArch Reference Manual v1.10, it is necessary to handle them
in insns_not_supported() to avoid putting a breakpoint in the middle of
a ll/sc atomic sequence, otherwise it will loop forever for kprobes and
uprobes.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Wentao Guan
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892979b0a9 |
LoongArch: Try VMA lock-based page fault handling first
Attempt VMA lock-based page fault handling first, and fall back to the existing mmap_lock-based handling if that fails. The "ebizzy -mTRp" test on Loongson-3A6000 shows that PER_VMA_LOCK can improve the benchmark by about 17.9% (97837.7 to 115430.8). This is the LoongArch variant of "x86/mm: try VMA lock-based page fault handling first". Signed-off-by: Wentao Guan <guanwentao@uniontech.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Youling Tang
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c8168b4faf |
LoongArch: Automatically disable kaslr if boot from kexec_file
Automatically disable kaslr when the kernel loads from kexec_file. kexec_file loads the secondary kernel image to a non-linked address, inherently providing KASLR-like randomization. However, on LoongArch where System RAM may be non-contiguous, enabling KASLR for the second kernel may relocate it to an invalid memory region and cause a boot failure. Thus, we disable KASLR when "kexec_file" is detected in the command line. To ensure compatibility with older kernels loaded via kexec_file, this patch should be backported to stable branches. Cc: stable@vger.kernel.org Signed-off-by: Youling Tang <tangyouling@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Youling Tang
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1bcca8620a |
LoongArch: Add crash dump support for kexec_file
Enabling crash dump (kdump) includes: - Prepare contents of ELF header of a core dump file, /proc/vmcore, using crash_prepare_elf64_headers(). - Add "mem=size@start" parameter to the command line and pass it to the capture kernel. Limit the runtime memory area of the captured kernel to avoid disrupting the production kernel's runtime state. - Add "elfcorehdr=size@start" parameter to the cmdline. The basic usage for kdump (add the cmdline parameter crashkernel=512M to grub.cfg for production kernel): 1) Load capture kernel image (vmlinux.efi or vmlinux can both be used): # kexec -s -p vmlinuz.efi --initrd=initrd.img --reuse-cmdline 2) Do something to crash, like: # echo c > /proc/sysrq-trigger Signed-off-by: Youling Tang <tangyouling@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Youling Tang
|
fc9c112f80 |
LoongArch: Add ELF binary support for kexec_file
This patch creates kexec_elf_ops to load ELF binary file for
kexec_file_load() syscall.
However, for `kbuf->memsz` and `kbuf->buf_min`, special handling is
required, and the generic `kexec_elf_load()` cannot be used directly.
$ readelf -l vmlinux
...
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000010000 0x9000000000200000 0x9000000000200000
0x0000000002747a00 0x000000000287a0d8 RWE 0x10000
NOTE 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 R 0x8
phdr->p_paddr should have been a physical address, but it is a virtual
address on the current LoongArch. This will cause kexec_file to fail
when loading the kernel and need to be converted to a physical address.
From the above MemSiz, it can be seen that 0x287a0d8 isn't page aligned.
Although kexec_add_buffer() will perform PAGE_SIZE alignment on kbuf->
memsz, there is still a stampeding in the loaded kernel space and initrd
space. The initrd resolution failed when starting the second kernel.
It can be known from the link script vmlinux.lds.S that,
BSS_SECTION(0, SZ_64K, 8)
. = ALIGN(PECOFF_SEGMENT_ALIGN);
It needs to be aligned according to SZ_64K, so that after alignment, its
size is consistent with _kernel_asize.
The basic usage (vmlinux):
1) Load second kernel image:
# kexec -s -l vmlinux --initrd=initrd.img --reuse-cmdline
2) Startup second kernel:
# kexec -e
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Youling Tang
|
55d990f008 |
LoongArch: Add EFI binary support for kexec_file
This patch creates kexec_efi_ops to load EFI binary file for kexec_file_load() syscall. The efi_kexec_load() as two parts: - the first part loads the kernel image (vmlinuz.efi or vmlinux.efi) - the second part loads other segments (e.g: initrd, cmdline, etc) Currently, pez (vmlinuz.efi) and pei (vmlinux.efi) format images are supported. The basic usage (vmlinuz.efi or vmlinux.efi): 1) Load second kernel image: # kexec -s -l vmlinuz.efi --initrd=initrd.img --reuse-cmdline 2) Startup second kernel: # kexec -e Signed-off-by: Youling Tang <tangyouling@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Youling Tang
|
d162feec6b |
LoongArch: Add preparatory infrastructure for kexec_file
Add some preparatory infrastructure: - Add command line processing. - Add support for loading other segments. - Other minor modifications. This initrd will be passed to the second kernel via the command line 'initrd=start,size'. The 'kexec_file' command line parameter indicates that the kernel is loaded via kexec_file. Signed-off-by: Youling Tang <tangyouling@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Youling Tang
|
30ade4fef7 |
LoongArch: Add struct loongarch_image_header for kernel
Define a dedicated image header structure for LoongArch architecture to standardize kernel loading in bootloaders (primarily for kexec_file). This header includes critical metadata, such as PE/DOS signature, kernel entry points, kernel image size and load address offset, etc. Signed-off-by: Youling Tang <tangyouling@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Huacai Chen
|
5dcddd268a |
LoongArch: Allow specify SIMD width via kernel parameters
For power saving or debugging purpose, we usually want to limit the SIMD (LSX/LASX) usage on a rich feature platform. So allow specify SIMD width via kernel parameters "simd=". Allowed values of "simd=" are any integers, and recommended values are: 0: Disable all SIMD features; 128: Enable at most 128bit SIMD features; 256: Enable at most 256bit SIMD features; -1(default): Enable as many as possible SIMD features automatically. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Huacai Chen
|
98662be7ef |
LoongArch: Init acpi_gbl_use_global_lock to false
Init acpi_gbl_use_global_lock to false, in order to void error messages
during boot phase:
ACPI Error: Could not enable GlobalLock event (20240827/evxfevnt-182)
ACPI Error: No response from Global Lock hardware, disabling lock (20240827/evglock-59)
Fixes:
|