07b050f929
2241 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
b8fd76f418 |
IOMMU Updates for Linux v6.2
Including:
- Core code:
- map/unmap_pages() cleanup
- SVA and IOPF refactoring
- Clean up and document return codes from device/domain
attachment code
- AMD driver:
- Rework and extend parsing code for ivrs_ioapic, ivrs_hpet
and ivrs_acpihid command line options
- Some smaller cleanups
- Intel driver:
- Blocking domain support
- Cleanups
- S390 driver:
- Fixes and improvements for attach and aperture handling
- PAMU driver:
- Resource leak fix and cleanup
- Rockchip driver:
- Page table permission bit fix
- Mediatek driver:
- Improve safety from invalid dts input
- Smaller fixes and improvements
- Exynos driver:
- Fix driver initialization sequence
- Sun50i driver:
- Remove IOMMU_DOMAIN_IDENTITY as it has not been working
forever
- Various other fixes
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Merge tag 'iommu-updates-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"Core code:
- map/unmap_pages() cleanup
- SVA and IOPF refactoring
- Clean up and document return codes from device/domain attachment
AMD driver:
- Rework and extend parsing code for ivrs_ioapic, ivrs_hpet and
ivrs_acpihid command line options
- Some smaller cleanups
Intel driver:
- Blocking domain support
- Cleanups
S390 driver:
- Fixes and improvements for attach and aperture handling
PAMU driver:
- Resource leak fix and cleanup
Rockchip driver:
- Page table permission bit fix
Mediatek driver:
- Improve safety from invalid dts input
- Smaller fixes and improvements
Exynos driver:
- Fix driver initialization sequence
Sun50i driver:
- Remove IOMMU_DOMAIN_IDENTITY as it has not been working forever
- Various other fixes"
* tag 'iommu-updates-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (74 commits)
iommu/mediatek: Fix forever loop in error handling
iommu/mediatek: Fix crash on isr after kexec()
iommu/sun50i: Remove IOMMU_DOMAIN_IDENTITY
iommu/amd: Fix typo in macro parameter name
iommu/mediatek: Remove unused "mapping" member from mtk_iommu_data
iommu/mediatek: Improve safety for mediatek,smi property in larb nodes
iommu/mediatek: Validate number of phandles associated with "mediatek,larbs"
iommu/mediatek: Add error path for loop of mm_dts_parse
iommu/mediatek: Use component_match_add
iommu/mediatek: Add platform_device_put for recovering the device refcnt
iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()
iommu/vt-d: Use real field for indication of first level
iommu/vt-d: Remove unnecessary domain_context_mapped()
iommu/vt-d: Rename domain_add_dev_info()
iommu/vt-d: Rename iommu_disable_dev_iotlb()
iommu/vt-d: Add blocking domain support
iommu/vt-d: Add device_block_translation() helper
iommu/vt-d: Allocate pasid table in device probe path
iommu/amd: Check return value of mmu_notifier_register()
iommu/amd: Fix pci device refcount leak in ppr_notifier()
...
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Linus Torvalds
|
2f26e42455 |
LoongArch changes for v6.2
1, Switch to relative exception tables; 2, Add unaligned access support; 3, Add alternative runtime patching mechanism; 4, Add FDT booting support from efi system table; 5, Add suspend/hibernation (ACPI S3/S4) support; 6, Add basic STACKPROTECTOR support; 7, Add ftrace (function tracer) support; 8, Update the default config file. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmOZHLwWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImege9D/0XkNpVHM/8H2JaEKT7V8PldsPb l8JIsU8UJRebcB9vOLHCfotFB3MuUakvAq6Mse+hQTGuajb9iIo3Zrpy4UG3WcEn 3UF6YwT8UZ4MBJzlJvZT8G1465xYDCnL57VsbYYmkatZYwkOhVGvwdAPWlA5l86e LoFsmAxUYdk4RtdUNrvyhKMeeVwx4WWgKEitx8vXv18G8C+tabwSro58n5x/RxBL T82Pgy2aPA58ccUvbxctzNytPlem+WKRqKKCUCRzJPeJ1O4E/DIyR6kACb9Dv5Eh GVxF6P98+KL3XckNxwNgoeY54j+NmD23z1qZJqPW8DN8gNVU3zZBNYfuEXSuff9i Ti4NuFrRtWyJHkb8Gc0zkMZV6AjnQsuO8KF9NE/Bki88g+1WbE9xrbyJkAqhGggj ddSkVs5duXxzL/10RAcyZbdG1/IsIReRifi52FYe/3QsMOAbTR3RHehv8k803ITM sXrl4KoTmfe9/tNCIP205ipXO3xw7PRjOSZtOXIMhHcAq5SLAXAw+1TbWC9xyzAL LQMIoQHA1Q+AhD4wXk3HK+8i9jzZzPsdu1/N33VEfSLLwpguQ3JDBYmw2tTmWxQR Yo3YJIj3L78FGUPFOSiKiHMsEcwh7QggSdqIcM33Y2XQPTyr5n9pZ0liclgQrl5a /jfLo1FQxCVNztChEw== =iplm -----END PGP SIGNATURE----- Merge tag 'loongarch-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson Pull LoongArch updates from Huacai Chen: - Switch to relative exception tables - Add unaligned access support - Add alternative runtime patching mechanism - Add FDT booting support from efi system table - Add suspend/hibernation (ACPI S3/S4) support - Add basic STACKPROTECTOR support - Add ftrace (function tracer) support - Update the default config file * tag 'loongarch-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (24 commits) LoongArch: Update Loongson-3 default config file LoongArch: modules/ftrace: Initialize PLT at load time LoongArch/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support LoongArch/ftrace: Add HAVE_DYNAMIC_FTRACE_WITH_ARGS support LoongArch/ftrace: Add HAVE_DYNAMIC_FTRACE_WITH_REGS support LoongArch/ftrace: Add dynamic function graph tracer support LoongArch/ftrace: Add dynamic function tracer support LoongArch/ftrace: Add recordmcount support LoongArch/ftrace: Add basic support LoongArch: module: Use got/plt section indices for relocations LoongArch: Add basic STACKPROTECTOR support LoongArch: Add hibernation (ACPI S4) support LoongArch: Add suspend (ACPI S3) support LoongArch: Add processing ISA Node in DeviceTree LoongArch: Add FDT booting support from efi system table LoongArch: Use alternative to optimize libraries LoongArch: Add alternative runtime patching mechanism LoongArch: Add unaligned access support LoongArch: BPF: Add BPF exception tables LoongArch: Remove the .fixup section usage ... |
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Linus Torvalds
|
5f6e430f93 |
powerpc updates for 6.2
- Add powerpc qspinlock implementation optimised for large system scalability and
paravirt. See the merge message for more details.
- Enable objtool to be built on powerpc to generate mcount locations.
- Use a temporary mm for code patching with the Radix MMU, so the writable mapping is
restricted to the patching CPU.
- Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI.
- Sanitise user registers on interrupt entry on 64-bit Book3S.
- Many other small features and fixes.
Thanks to: Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen
Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin
Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven,
Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain,
Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao,
Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure,
Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang
Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, Wolfram Sang.
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Merge tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add powerpc qspinlock implementation optimised for large system
scalability and paravirt. See the merge message for more details
- Enable objtool to be built on powerpc to generate mcount locations
- Use a temporary mm for code patching with the Radix MMU, so the
writable mapping is restricted to the patching CPU
- Add an option to build the 64-bit big-endian kernel with the ELFv2
ABI
- Sanitise user registers on interrupt entry on 64-bit Book3S
- Many other small features and fixes
Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn
Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET,
Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang,
Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A.
R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol
Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin,
Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika
Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng,
XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu,
and Wolfram Sang.
* tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits)
powerpc/code-patching: Fix oops with DEBUG_VM enabled
powerpc/qspinlock: Fix 32-bit build
powerpc/prom: Fix 32-bit build
powerpc/rtas: mandate RTAS syscall filtering
powerpc/rtas: define pr_fmt and convert printk call sites
powerpc/rtas: clean up includes
powerpc/rtas: clean up rtas_error_log_max initialization
powerpc/pseries/eeh: use correct API for error log size
powerpc/rtas: avoid scheduling in rtas_os_term()
powerpc/rtas: avoid device tree lookups in rtas_os_term()
powerpc/rtasd: use correct OF API for event scan rate
powerpc/rtas: document rtas_call()
powerpc/pseries: unregister VPA when hot unplugging a CPU
powerpc/pseries: reset the RCU watchdogs after a LPM
powerpc: Take in account addition CPU node when building kexec FDT
powerpc: export the CPU node count
powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state
powerpc/dts/fsl: Fix pca954x i2c-mux node names
cxl: Remove unnecessary cxl_pci_window_alignment()
selftests/powerpc: Fix resource leaks
...
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Linus Torvalds
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fe36bb8736 |
Tracing updates for 6.2:
- Add options to the osnoise tracer
o panic_on_stop option that panics the kernel if osnoise is greater than some
user defined threshold.
o preempt option, to test noise while preemption is disabled
o irq option, to test noise when interrupts are disabled
- Add .percent and .graph suffix to histograms to give different outputs
- Add nohitcount to disable showing hitcount in histogram output
- Add new __cpumask() to trace event fields to annotate that a unsigned long
array is a cpumask to user space and should be treated as one.
- Add trace_trigger kernel command line parameter to enable trace event
triggers at boot up. Useful to trace stack traces, disable tracing and take
snapshots.
- Fix x86/kmmio mmio tracer to work with the updates to lockdep
- Unify the panic and die notifiers
- Add back ftrace_expect reference that is used to extract more information in
the ftrace_bug() code.
- Have trigger filter parsing errors show up in the tracing error log.
- Updated MAINTAINERS file to add kernel tracing mailing list and patchwork
info
- Use IDA to keep track of event type numbers.
- And minor fixes and clean ups
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Merge tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Add options to the osnoise tracer:
- 'panic_on_stop' option that panics the kernel if osnoise is
greater than some user defined threshold.
- 'preempt' option, to test noise while preemption is disabled
- 'irq' option, to test noise when interrupts are disabled
- Add .percent and .graph suffix to histograms to give different
outputs
- Add nohitcount to disable showing hitcount in histogram output
- Add new __cpumask() to trace event fields to annotate that a unsigned
long array is a cpumask to user space and should be treated as one.
- Add trace_trigger kernel command line parameter to enable trace event
triggers at boot up. Useful to trace stack traces, disable tracing
and take snapshots.
- Fix x86/kmmio mmio tracer to work with the updates to lockdep
- Unify the panic and die notifiers
- Add back ftrace_expect reference that is used to extract more
information in the ftrace_bug() code.
- Have trigger filter parsing errors show up in the tracing error log.
- Updated MAINTAINERS file to add kernel tracing mailing list and
patchwork info
- Use IDA to keep track of event type numbers.
- And minor fixes and clean ups
* tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (44 commits)
tracing: Fix cpumask() example typo
tracing: Improve panic/die notifiers
ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels
tracing: Do not synchronize freeing of trigger filter on boot up
tracing: Remove pointer (asterisk) and brackets from cpumask_t field
tracing: Have trigger filter parsing errors show up in error_log
x86/mm/kmmio: Remove redundant preempt_disable()
tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line
Documentation/osnoise: Add osnoise/options documentation
tracing/osnoise: Add preempt and/or irq disabled options
tracing/osnoise: Add PANIC_ON_STOP option
Documentation/osnoise: Escape underscore of NO_ prefix
tracing: Fix some checker warnings
tracing/osnoise: Make osnoise_options static
tracing: remove unnecessary trace_trigger ifdef
ring-buffer: Handle resize in early boot up
tracing/hist: Fix issue of losting command info in error_log
tracing: Fix issue of missing one synthetic field
tracing/hist: Fix out-of-bound write on 'action_data.var_ref_idx'
tracing/hist: Fix wrong return value in parse_action_params()
...
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Linus Torvalds
|
851f657a86 |
13 cifs/smb3 client fixes
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Linus Torvalds
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eb67d239f3 |
RISC-V Patches for the 6.2 Merge Window, Part 1
* Support for the T-Head PMU via the perf subsystem. * ftrace support for rv32. * Support for non-volatile memory devices. * Various fixes and cleanups. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmOZ6WsTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiWGcD/wLGiHq3ekQhl5D+CaA1WlJ5XzQFfY2 bv1ZCZGdjuiv66jiMlmEsbpfUCk3bSAIjCO3MHQNDmTuPJztCHVJXOHbZFWItzzO soW4nXHKW1sGHa7hDLGQUPkltA48OdPoyqEDvlnpyEWFT+2xHwdFEURWE85FXGeq ZzFSKUQqX/V52n9TS4M4QtmNnQatR3TgIs8ttzD4JqwWFBbp4/iBfIGt6n3W24XH 9lKWikO4YOYUPl0KVIakM4d8NmX7g+7vhCKWavLke1fF/IQOlyWwA0eM8ryj33OG L1nFkqfF3mCw9i72WHftlc0rAgVqcYS8ntnQkPNpt2zPp3xFjDwEy+XiZrRE+sAp m5Ma2Tkw7G3ueBtXwP1yo+EKa7PrVFbCRD/rEpLJAC6+9ktvc7cYs39E08O+wrwT qkYThDolovqMOqfOq6afEGy5lfIa5U00vxK+3MXiE3eLEjHSJhwTXadUbwyMjJWE zOwA6p5NfDFzklESSNTtIBY85Zlh/g2q6GWCy7yBQnlaSdbpDxcnAlSZipq66Iqm 9ytdZiHid4BIRQxr5qyXTB184BvFnWNRs9NGhCj38uLEnuxwSChzwoh/WPDxLNte U9ouvwJO5U2qAZsMGJhY8W2s/9WvWpSqRhSMA/nnNV1Hh+URFz8rFXAln6kNn//v j+cYGCyjLnO1hg== =4Ak2 -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for the T-Head PMU via the perf subsystem - ftrace support for rv32 - Support for non-volatile memory devices - Various fixes and cleanups * tag 'riscv-for-linus-6.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (52 commits) Documentation: RISC-V: patch-acceptance: s/implementor/implementer Documentation: RISC-V: Mention the UEFI Standards Documentation: RISC-V: Allow patches for non-standard behavior Documentation: RISC-V: Fix a typo in patch-acceptance riscv: Fixup compile error with !MMU riscv: Fix P4D_SHIFT definition for 3-level page table mode riscv: Apply a static assert to riscv_isa_ext_id RISC-V: Add some comments about the shadow and overflow stacks RISC-V: Align the shadow stack RISC-V: Ensure Zicbom has a valid block size RISC-V: Introduce riscv_isa_extension_check RISC-V: Improve use of isa2hwcap[] riscv: Don't duplicate _ALTERNATIVE_CFG* macros riscv: alternatives: Drop the underscores from the assembly macro names riscv: alternatives: Don't name unused macro parameters riscv: Don't duplicate __ALTERNATIVE_CFG in __ALTERNATIVE_CFG_2 riscv: mm: call best_map_size many times during linear-mapping riscv: Move cast inside kernel_mapping_[pv]a_to_[vp]a riscv: Fix crash during early errata patching riscv: boot: add zstd support ... |
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Linus Torvalds
|
48ea09cdda |
hardening updates for v6.2-rc1
- Convert flexible array members, fix -Wstringop-overflow warnings,
and fix KCFI function type mismatches that went ignored by
maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook).
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(),
add more __alloc_size attributes, and introduce full testing
of all allocator functions. Finally remove the ksize() side-effect
so that each allocation-aware checker can finally behave without
exceptions.
- Introduce oops_limit (default 10,000) and warn_limit (default off)
to provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook).
- Introduce overflows_type() and castable_to_type() helpers for
cleaner overflow checking.
- Improve code generation for strscpy() and update str*() kern-doc.
- Convert strscpy and sigphash tests to KUnit, and expand memcpy
tests.
- Always use a non-NULL argument for prepare_kernel_cred().
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell).
- Adjust orphan linker section checking to respect CONFIG_WERROR
(Xin Li).
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu).
- Fix um vs FORTIFY warnings for always-NULL arguments.
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Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
- Convert flexible array members, fix -Wstringop-overflow warnings, and
fix KCFI function type mismatches that went ignored by maintainers
(Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
more __alloc_size attributes, and introduce full testing of all
allocator functions. Finally remove the ksize() side-effect so that
each allocation-aware checker can finally behave without exceptions
- Introduce oops_limit (default 10,000) and warn_limit (default off) to
provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook)
- Introduce overflows_type() and castable_to_type() helpers for cleaner
overflow checking
- Improve code generation for strscpy() and update str*() kern-doc
- Convert strscpy and sigphash tests to KUnit, and expand memcpy tests
- Always use a non-NULL argument for prepare_kernel_cred()
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)
- Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
Li)
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)
- Fix um vs FORTIFY warnings for always-NULL arguments
* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
ksmbd: replace one-element arrays with flexible-array members
hpet: Replace one-element array with flexible-array member
um: virt-pci: Avoid GCC non-NULL warning
signal: Initialize the info in ksignal
lib: fortify_kunit: build without structleak plugin
panic: Expose "warn_count" to sysfs
panic: Introduce warn_limit
panic: Consolidate open-coded panic_on_warn checks
exit: Allow oops_limit to be disabled
exit: Expose "oops_count" to sysfs
exit: Put an upper limit on how often we can oops
panic: Separate sysctl logic from CONFIG_SMP
mm/pgtable: Fix multiple -Wstringop-overflow warnings
mm: Make ksize() a reporting-only function
kunit/fortify: Validate __alloc_size attribute results
drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
driver core: Add __alloc_size hint to devm allocators
overflow: Introduce overflows_type() and castable_to_type()
coredump: Proactively round up to kmalloc bucket size
...
|
||
|
Linus Torvalds
|
e2ca6ba6ba |
MM patches for 6.2-rc1.
- More userfaultfs work from Peter Xu. - Several convert-to-folios series from Sidhartha Kumar and Huang Ying. - Some filemap cleanups from Vishal Moola. - David Hildenbrand added the ability to selftest anon memory COW handling. - Some cpuset simplifications from Liu Shixin. - Addition of vmalloc tracing support by Uladzislau Rezki. - Some pagecache folioifications and simplifications from Matthew Wilcox. - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it. - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series shold have been in the non-MM tree, my bad. - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages. - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages. - Peter Xu utilized the PTE marker code for handling swapin errors. - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient. - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand. - zram support for multiple compression streams from Sergey Senozhatsky. - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway. - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations. - Vishal Moola removed the try_to_release_page() wrapper. - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache. - David Hildenbrand did some cleanup and repair work on KSM COW breaking. - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend. - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range(). - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen. - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect. - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages(). - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting. - David Hildenbrand has fixed some of our MM selftests for 32-bit machines. - Many singleton patches, as usual. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5j6ZwAKCRDdBJ7gKXxA jkDYAP9qNeVqp9iuHjZNTqzMXkfmJPsw2kmy2P+VdzYVuQRcJgEAgoV9d7oMq4ml CodAgiA51qwzId3GRytIo/tfWZSezgA= =d19R -----END PGP SIGNATURE----- Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - More userfaultfs work from Peter Xu - Several convert-to-folios series from Sidhartha Kumar and Huang Ying - Some filemap cleanups from Vishal Moola - David Hildenbrand added the ability to selftest anon memory COW handling - Some cpuset simplifications from Liu Shixin - Addition of vmalloc tracing support by Uladzislau Rezki - Some pagecache folioifications and simplifications from Matthew Wilcox - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series should have been in the non-MM tree, my bad - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages - Peter Xu utilized the PTE marker code for handling swapin errors - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand - zram support for multiple compression streams from Sergey Senozhatsky - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations - Vishal Moola removed the try_to_release_page() wrapper - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache - David Hildenbrand did some cleanup and repair work on KSM COW breaking - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range() - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages() - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting - David Hildenbrand has fixed some of our MM selftests for 32-bit machines - Many singleton patches, as usual * tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits) mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio mm: mmu_gather: allow more than one batch of delayed rmaps mm: fix typo in struct pglist_data code comment kmsan: fix memcpy tests mm: add cond_resched() in swapin_walk_pmd_entry() mm: do not show fs mm pc for VM_LOCKONFAULT pages selftests/vm: ksm_functional_tests: fixes for 32bit selftests/vm: cow: fix compile warning on 32bit selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem mm,thp,rmap: fix races between updates of subpages_mapcount mm: memcg: fix swapcached stat accounting mm: add nodes= arg to memory.reclaim mm: disable top-tier fallback to reclaim on proactive reclaim selftests: cgroup: make sure reclaim target memcg is unprotected selftests: cgroup: refactor proactive reclaim code to reclaim_until() mm: memcg: fix stale protection of reclaim target memcg mm/mmap: properly unaccount memory on mas_preallocate() failure omfs: remove ->writepage jfs: remove ->writepage ... |
||
Huacai Chen
|
61a6fccc0b |
LoongArch: Add unaligned access support
Loongson-2 series (Loongson-2K500, Loongson-2K1000) don't support unaligned access in hardware, while Loongson-3 series (Loongson-3A5000, Loongson-3C5000) are configurable whether support unaligned access in hardware. This patch add unaligned access emulation for those LoongArch processors without hardware support. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
||
|
Linus Torvalds
|
a594533df0 |
drm for 6.2:
Initial accel subsystem support. There are no drivers yet, just the framework. New driver: - ofdrm - replacement for offb fbdev: - add support for nomodeset fourcc: - add Vivante tiled modifier core: - atomic-helpers: CRTC primary plane test fixes, fb access hooks - connector: TV API consistency, cmdline parser improvements - send connector hotplug on cleanup - sort makefile objects tests: - sort kunit tests - improve DP-MST tests - add kunit helpers to create a device sched: - module param for scheduling policy - refcounting fix buddy: - add back random seed log ttm: - convert ttm_resource to size_t - optimize pool allocations edid: - HFVSDB parsing support fixes - logging/debug improvements - DSC quirks dma-buf: - Add unlocked vmap and attachment mapping - move drivers to common locking convention - locking improvements firmware: - new API for rPI firmware and vc4 xilinx: - zynqmp: displayport bridge support - dpsub fix bridge: - adv7533: Remove dynamic lane switching - it6505: Runtime PM support, sync improvements - ps8640: Handle AUX defer messages - tc358775: Drop soft-reset over I2C panel: - panel-edp: Add INX N116BGE-EA2 C2 and C4 support. - Jadard JD9365DA-H3 - NewVision NV3051D amdgpu: - DCN support on ARM - DCN 2.1 secure display - Sienna Cichlid mode2 reset fixes - new GC 11.x firmware versions - drop AMD specific DSC workarounds in favour of drm code - clang warning fixes - scheduler rework - SR-IOV fixes - GPUVM locking fixes - fix memory leak in CS IOCTL error path - flexible array updates - enable new GC/PSP/SMU/NBIO IP - GFX preemption support for gfx9 amdkfd: - cache size fixes - userptr fixes - enable cooperative launch on gfx 10.3 - enable GC 11.0.4 KFD support radeon: - replace kmap with kmap_local_page - ACPI ref count fix - HDA audio notifier support i915: - DG2 enabled by default - MTL enablement work - hotplug refactoring - VBT improvements - Display and watermark refactoring - ADL-P workaround - temp disable runtime_pm for discrete- - fix for A380 as a secondary GPU - Wa_18017747507 for DG2 - CS timestamp support fixes for gen5 and earlier - never purge busy TTM objects - use i915_sg_dma_sizes for all backends - demote GuC kernel contexts to normal priority - gvt: refactor for new MDEV interface - enable DC power states on eDP ports - fix gen 2/3 workarounds nouveau: - fix page fault handling - Ampere acceleration support - driver stability improvements - nva3 backlight support msm: - MSM_INFO_GET_FLAGS support - DPU: XR30 and P010 image formats - Qualcomm SM6115 support - DSI PHY support for QCM2290 - HDMI: refactored dev init path - remove exclusive-fence hack - fix speed-bin detection - enable clamp to idle on 7c3 - improved hangcheck detection vmwgfx: - fb and cursor refactoring - convert to generic hashtable - cursor improvements etnaviv: - hw workarounds - softpin MMU fixes ast: - atomic gamma LUT support - convert to SHMEM lcdif: - support YUV planes - Increase DMA burst size - FIFO threshold tuning meson: - fix return type of cvbs mode_valid mgag200: - fix PLL setup on some revisions sun4i: - A100 and D1 support udl: - modesetting improvements - hot unplug support vc4: - support PAL-M - fix regression preventing 4K @ 60Hz - fix NULL ptr deref v3d: - switch to drm managed resources renesas: - RZ/G2L DSI support - DU Kconfig cleanup mediatek: - fixup dpi and hdmi - MT8188 dpi support - MT8195 AFBC support tegra: - NVDEC hardware on Tegra234 SoC hdlcd: - switch to drm managed resources ingenic: - fix registration error path hisilicon: - convert to drm_mode_init maildp: - use managed resources mtk: - use drm_mode_init rockchip: - use drm_mode_copy -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmOXxI0ACgkQDHTzWXnE hr4NyBAAojK3N+XJf2b8LWuRKsShCr5FXlteEDxiYGLeB8/g4x3LztSfHgUg0iuS nP1m7Cx4snXcVNS6iyOsoZVq1EGUAWvv+mPWJe1UywjpyqtciTVQ11GEHRvI/w+V GRvkhmt/TsoZA0QIlS2MaOmhn9j17QOcuYTUjYdyRL4tsrHWrTASH5W1Jt2xmDyw 5FUJvfukPWm100DVWbh6hWbCKL22bDDF/nj1H+G6hYSyTjVbk7wZ0vy2m6TnIHNF iyBHBIzFPg3BveiSlKe6aVX7Gq2d8bfqjHsgN5f1qcS4ejWEkHLVxJtBdOB+fOSC 7o8Ms7WHi1AmnkOVCGRIjJ0cJrLZu2HDlyhViguAO1XQ3Jvuo/4WW3mplv+YPOMc c+P/zuPG42d4lrISuB8wspTdOgxmqpZDkg3HE6n1+jiVR0u4hTTYktoPnLsHX6KG l/l2B6aVAxE4b6P0q3ofYoAnk5rNsb1YUS+a8kC6f97TQ3gmOsN75iZXD/ASHg2r ozhh2wcFxIPkJhE7vqLWPIBCWQs93sGyQXoI7Q0TJaIAZTXV0VmO1BIofetpVImE 7FhDC4wvBedXywN8NYUEFbCTOnIcDMteM/i6S1ns78s5UjDa5osPuS5I02VT1lbN tvnJoHNkhCt13lJz63b0HNFm3cPKoRosCQhJeshyUYaFKs+evL0= =pABG -----END PGP SIGNATURE----- Merge tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "The biggest highlight is that the accel subsystem framework is merged. Hopefully for 6.3 we will be able to line up a driver to use it. In drivers land, i915 enables DG2 support by default now, and nouveau has a big stability refactoring and initial ampere support, AMD includes new hw IP support and should build on ARM again. There is also an ofdrm driver to take over offb on platforms it's used. Stuff outside my tree, the dma-buf patches hit a few places, the vc4 firmware changes also do, and i915 has some interactions with MEI for discrete GPUs. I think all of those should have been acked/reviewed by relevant parties. New driver: - ofdrm - replacement for offb fbdev: - add support for nomodeset fourcc: - add Vivante tiled modifier core: - atomic-helpers: CRTC primary plane test fixes, fb access hooks - connector: TV API consistency, cmdline parser improvements - send connector hotplug on cleanup - sort makefile objects tests: - sort kunit tests - improve DP-MST tests - add kunit helpers to create a device sched: - module param for scheduling policy - refcounting fix buddy: - add back random seed log ttm: - convert ttm_resource to size_t - optimize pool allocations edid: - HFVSDB parsing support fixes - logging/debug improvements - DSC quirks dma-buf: - Add unlocked vmap and attachment mapping - move drivers to common locking convention - locking improvements firmware: - new API for rPI firmware and vc4 xilinx: - zynqmp: displayport bridge support - dpsub fix bridge: - adv7533: Remove dynamic lane switching - it6505: Runtime PM support, sync improvements - ps8640: Handle AUX defer messages - tc358775: Drop soft-reset over I2C panel: - panel-edp: Add INX N116BGE-EA2 C2 and C4 support. - Jadard JD9365DA-H3 - NewVision NV3051D amdgpu: - DCN support on ARM - DCN 2.1 secure display - Sienna Cichlid mode2 reset fixes - new GC 11.x firmware versions - drop AMD specific DSC workarounds in favour of drm code - clang warning fixes - scheduler rework - SR-IOV fixes - GPUVM locking fixes - fix memory leak in CS IOCTL error path - flexible array updates - enable new GC/PSP/SMU/NBIO IP - GFX preemption support for gfx9 amdkfd: - cache size fixes - userptr fixes - enable cooperative launch on gfx 10.3 - enable GC 11.0.4 KFD support radeon: - replace kmap with kmap_local_page - ACPI ref count fix - HDA audio notifier support i915: - DG2 enabled by default - MTL enablement work - hotplug refactoring - VBT improvements - Display and watermark refactoring - ADL-P workaround - temp disable runtime_pm for discrete- - fix for A380 as a secondary GPU - Wa_18017747507 for DG2 - CS timestamp support fixes for gen5 and earlier - never purge busy TTM objects - use i915_sg_dma_sizes for all backends - demote GuC kernel contexts to normal priority - gvt: refactor for new MDEV interface - enable DC power states on eDP ports - fix gen 2/3 workarounds nouveau: - fix page fault handling - Ampere acceleration support - driver stability improvements - nva3 backlight support msm: - MSM_INFO_GET_FLAGS support - DPU: XR30 and P010 image formats - Qualcomm SM6115 support - DSI PHY support for QCM2290 - HDMI: refactored dev init path - remove exclusive-fence hack - fix speed-bin detection - enable clamp to idle on 7c3 - improved hangcheck detection vmwgfx: - fb and cursor refactoring - convert to generic hashtable - cursor improvements etnaviv: - hw workarounds - softpin MMU fixes ast: - atomic gamma LUT support - convert to SHMEM lcdif: - support YUV planes - Increase DMA burst size - FIFO threshold tuning meson: - fix return type of cvbs mode_valid mgag200: - fix PLL setup on some revisions sun4i: - A100 and D1 support udl: - modesetting improvements - hot unplug support vc4: - support PAL-M - fix regression preventing 4K @ 60Hz - fix NULL ptr deref v3d: - switch to drm managed resources renesas: - RZ/G2L DSI support - DU Kconfig cleanup mediatek: - fixup dpi and hdmi - MT8188 dpi support - MT8195 AFBC support tegra: - NVDEC hardware on Tegra234 SoC hdlcd: - switch to drm managed resources ingenic: - fix registration error path hisilicon: - convert to drm_mode_init maildp: - use managed resources mtk: - use drm_mode_init rockchip: - use drm_mode_copy" * tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm: (1397 commits) drm/amdgpu: fix mmhub register base coding error drm/amdgpu: add tmz support for GC IP v11.0.4 drm/amdgpu: enable GFX Clock Gating control for GC IP v11.0.4 drm/amdgpu: enable GFX Power Gating for GC IP v11.0.4 drm/amdgpu: enable GFX IP v11.0.4 CG support drm/amdgpu: Make amdgpu_ring_mux functions as static drm/amdgpu: generally allow over-commit during BO allocation drm/amd/display: fix array index out of bound error in DCN32 DML drm/amd/display: 3.2.215 drm/amd/display: set optimized required for comp buf changes drm/amd/display: Add debug option to skip PSR CRTC disable drm/amd/display: correct DML calc error of UrgentLatency drm/amd/display: correct static_screen_event_mask drm/amd/display: Ensure commit_streams returns the DC return code drm/amd/display: read invalid ddc pin status cause engine busy drm/amd/display: Bypass DET swath fill check for max clocks drm/amd/display: Disable uclk pstate for subvp pipes drm/amd/display: Fix DCN2.1 default DSC clocks drm/amd/display: Enable dp_hdmi21_pcon support drm/amd/display: prevent seamless boot on displays that don't have the preferred dig ... |
||
|
Linus Torvalds
|
cdb9d35377 |
media updates for v6.2-rc1
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Merge tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- DVB core changes to avoid refcount troubles and UAF
- DVB API/core has gained support for DVB-C2 and DVB-S2X
- New sensor drivers: ov08x40, ov4689.c, st-vgxy61 and tc358746.c
- Removal of an unused sensor driver: s5k4ecgx
- Move microchip_csi2dc to a new directory, named after the
manufacturer
- Add media controller support to Microship drivers
- Old Atmel/Microship drivers that don't use media controler got moved
to staging
- New drivers added for Renesas RZ/G2L CRU and MIPI CSI-2 support
- Allwinner A31 camera sensor driver code was now split into a bridge
and a separate processor driver
- Added a virtual stateless decoder driver in order to test core
support for stateless drivers and test userspace apps using it
- removed platform-based support for ov9650, as this is not used
anymore
- atomisp now uses videobuf2 and supports normal mmap mode
- the imx7-media-csi driver got promoted from staging
- rcar-vin driver has gained support for gen3 UDS (Up Down Scaler)
- most i2c drivers now use I2C .probe_new() kAPI
- lots of drivers fixes, cleanups and improvements
* tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (544 commits)
media: s5c73m3: Switch to GPIO descriptors
media: i2c: s5k5baf: switch to using gpiod API
media: i2c: s5k6a3: switch to using gpiod API
media: imx: remove code for non-existing config IMX_GPT_ICAP
media: si470x: Fix use-after-free in si470x_int_in_callback()
media: staging: stkwebcam: Restore MEDIA_{USB,CAMERA}_SUPPORT dependencies
media: coda: Add check for kmalloc
media: coda: Add check for dcoda_iram_alloc
dt-bindings: media: s5c73m3: Fix reset-gpio descriptor
media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
media: s5k4ecgx: Delete driver
media: s5k4ecgx: Switch to GPIO descriptors
media: Switch to use dev_err_probe() helper
headers: Remove some left-over license text in include/uapi/linux/v4l2-*
headers: Remove some left-over license text in include/uapi/linux/dvb/
media: usb: pwc-uncompress: Use flex array destination for memcpy()
media: s5p-mfc: Fix to handle reference queue during finishing
media: s5p-mfc: Clear workbit to handle error condition
media: s5p-mfc: Fix in register read and write for H264
media: imx: Use get_mbus_config instead of parsing upstream DT endpoints
...
|
||
|
Linus Torvalds
|
8715c6d310 |
- Fix use-after-free races due to missing resource cleanup during DM
target destruction in DM targets: thin-pool, cache, integrity and clone. - Fix ABBA deadlocks in DM thin-pool and cache targets due to their use of a bufio client (that has a shrinker whose locking can cause the incorrect locking order). - Fix DM cache target to set its needs_check flag after first aborting the metadata (whereby using reset persistent-data objects to update the superblock with, otherwise the superblock update could be dropped due to aborting metadata). This was found with code-inspection when comparing with the equivalent in DM thinp code. - Fix DM thin-pool's presume to continue resuming the device even if the pool in is fail mode -- otherwise bios may never be failed up the IO stack (which will prevent resetting the thin-pool target via table reload) - Fix DM thin-pool's metadata to use proper btree root (from previous transaction) if metadata commit failed. - Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to wait for the specified device before continuing with its DM target initialization. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmOXp8IACgkQxSPxCi2d A1rS2wf/VF82dcQpsAAT05L6j6xqo/eUe3Q3AZYbJGRl1Kg41NE/YRA1A/lsxykO j3wZut5UyL0ZEsjHhhUMC8rOeexfyqiecVdMofuQRkKJYa4l85IbPBE2qOMi/Ida WMsZg8bmm01hDPpZRUwj7L5BRDJlB0n9hdtkh16K0gboiaPZxmIEtum0IYr8krPj hOv6amx9MhrsiUcVWylFipmxTgpsxwwg67g2R6tCGUmHQhxHKFInvySrYdv5hYdy 3kr1pxy87Wn3oETrHNNc506qh6QK85mOC+D/VdNNzNnM6yhgOEkE9lSS/Er2rHyT D6Af4j5SIBy/srv5DjcWd7pi4NHIBA== =fuDb -----END PGP SIGNATURE----- Merge tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Fix use-after-free races due to missing resource cleanup during DM target destruction in DM targets: thin-pool, cache, integrity and clone. - Fix ABBA deadlocks in DM thin-pool and cache targets due to their use of a bufio client (that has a shrinker whose locking can cause the incorrect locking order). - Fix DM cache target to set its needs_check flag after first aborting the metadata (whereby using reset persistent-data objects to update the superblock with, otherwise the superblock update could be dropped due to aborting metadata). This was found with code-inspection when comparing with the equivalent in DM thinp code. - Fix DM thin-pool's presume to continue resuming the device even if the pool in is fail mode -- otherwise bios may never be failed up the IO stack (which will prevent resetting the thin-pool target via table reload) - Fix DM thin-pool's metadata to use proper btree root (from previous transaction) if metadata commit failed. - Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to wait for the specified device before continuing with its DM target initialization. * tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin: Use last transaction's pmd->root when commit failed dm init: add dm-mod.waitfor to wait for asynchronously probed block devices dm ioctl: fix a couple ioctl codes dm ioctl: a small code cleanup in list_version_get_info dm thin: resume even if in FAIL mode dm cache: set needs_check flag after aborting metadata dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata dm integrity: Fix UAF in dm_integrity_dtr() dm cache: Fix UAF in destroy() dm clone: Fix UAF in clone_dtr() dm thin: Fix UAF in run_timer_softirq() |
||
|
Linus Torvalds
|
8702f2c611 |
Non-MM patches for 6.2-rc1.
- A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line. - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files. - A series from Yang Yingliang to address rapido memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t(). - And a whole shower of singleton patches all over the place. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5efRgAKCRDdBJ7gKXxA jgvdAP0al6oFDtaSsshIdNhrzcMwfjt6PfVxxHdLmNhF1hX2dwD/SVluS1bPSP7y 0sZp7Ustu3YTb8aFkMl96Y9m9mY1Nwg= =ga5B -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files - A series from Yang Yingliang to address rapidio memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t() - And a whole shower of singleton patches all over the place * tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (79 commits) ipc: fix memory leak in init_mqueue_fs() hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount rapidio: devices: fix missing put_device in mport_cdev_open kcov: fix spelling typos in comments hfs: Fix OOB Write in hfs_asc2mac hfs: fix OOB Read in __hfs_brec_find relay: fix type mismatch when allocating memory in relay_create_buf() ocfs2: always read both high and low parts of dinode link count io-mapping: move some code within the include guarded section kernel: kcsan: kcsan_test: build without structleak plugin mailmap: update email for Iskren Chernev eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD rapidio: fix possible UAF when kfifo_alloc() fails relay: use strscpy() is more robust and safer cpumask: limit visibility of FORCE_NR_CPUS acct: fix potential integer overflow in encode_comp_t() acct: fix accuracy loss for input value of encode_comp_t() linux/init.h: include <linux/build_bug.h> and <linux/stringify.h> rapidio: rio: fix possible name leak in rio_register_mport() rapidio: fix possible name leaks when rio_add_device() fails ... |
||
|
Linus Torvalds
|
a7cacfb068 |
This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by Carlos
Bilbao.
- More Chinese translations.
- A change to the Sphinx "alabaster" theme by default for HTML generation.
Unlike the previous default (Read the Docs), alabaster is shipped with
Sphinx by default, reducing the number of other dependencies that need to
be installed. It also (IMO) produces a cleaner and more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until now).
Plus the usual collection of typo fixes, build-warning fixes, and minor
updates.
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Merge tag 'docs-6.2' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by
Carlos Bilbao
- More Chinese translations
- A change to the Sphinx "alabaster" theme by default for HTML
generation.
Unlike the previous default (Read the Docs), alabaster is shipped
with Sphinx by default, reducing the number of other dependencies
that need to be installed. It also (IMO) produces a cleaner and
more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until
now)
Plus the usual collection of typo fixes, build-warning fixes, and
minor updates"
* tag 'docs-6.2' of git://git.lwn.net/linux: (67 commits)
Documentation/features: Use loongarch instead of loong
Documentation/features-refresh.sh: Only sed the beginning "arch" of ARCH_DIR
docs/zh_CN: Fix '.. only::' directive's expression
docs/sp_SP: Add memory-barriers.txt Spanish translation
docs/zh_CN/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
docs/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
Documentation/features: Update feature lists for 6.1
Documentation: Fixed a typo in bootconfig.rst
docs/sp_SP: Add process coding-style translation
docs/sp_SP: Add kernel-docs.rst Spanish translation
docs: Create translations/sp_SP/process/, move submitting-patches.rst
docs: Add book to process/kernel-docs.rst
docs: Retire old resources from kernel-docs.rst
docs: Update maintainer of kernel-docs.rst
Documentation: riscv: Document the sv57 VM layout
Documentation: USB: correct possessive "its" usage
math64: fix kernel-doc return value warnings
math64: add kernel-doc for DIV64_U64_ROUND_UP
math64: favor kernel-doc from header files
doc: add texinfodocs and infodocs targets
...
|
||
|
Linus Torvalds
|
23a68d14de |
linux-kselftest-next-6.2-rc1
This Kselftest update for Linux 6.2-rc1 consists of several fixes
and enhancements to existing tests and a few new tests:
- adds new amd-pstate and fixes and enhances existing ones
- adds new watchdog tests and enhances existing ones to improve coverage
- fixes to ftrace, splice_read, rtc, and efivars tests
- fixes to handle egrep obsolescence in the latest grep release
- miscellaneous spelling and SPDX fixes
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Merge tag 'linux-kselftest-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"Several fixes and enhancements to existing tests and a few new tests:
- add new amd-pstate tests and fix and enhance existing ones
- add new watchdog tests and enhance existing ones to improve
coverage
- fixes to ftrace, splice_read, rtc, and efivars tests
- fixes to handle egrep obsolescence in the latest grep release
- miscellaneous spelling and SPDX fixes"
* tag 'linux-kselftest-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (24 commits)
selftests/ftrace: Use long for synthetic event probe test
selftests/tpm2: Split async tests call to separate shell script runner
selftests: splice_read: Fix sysfs read cases
selftests: ftrace: Use "grep -E" instead of "egrep"
selftests: gpio: Use "grep -E" instead of "egrep"
selftests: kselftest_deps: Use "grep -E" instead of "egrep"
selftests/efivarfs: Add checking of the test return value
cpufreq: amd-pstate: fix spdxcheck warnings for amd-pstate-ut.c
selftests: rtc: skip when RTC is not present
selftests/ftrace: event_triggers: wait longer for test_event_enable
selftests/vDSO: Add riscv getcpu & gettimeofday test
Documentation: amd-pstate: Add tbench and gitsource test introduction
selftests: amd-pstate: Trigger gitsource benchmark and test cpus
selftests: amd-pstate: Trigger tbench benchmark and test cpus
selftests: amd-pstate: Split basic.sh into run.sh and basic.sh.
selftests: amd-pstate: Rename amd-pstate-ut.sh to basic.sh.
selftests/ftrace: Convert tracer tests to use 'requires' to specify program dependency
selftests/ftrace: Add check for ping command for trigger tests
selftests/watchdog: Fix spelling mistake "Temeprature" -> "Temperature"
selftests/watchdog: add test for WDIOC_GETTEMP
...
|
||
|
Linus Torvalds
|
268325bda5 |
Random number generator updates for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
- Replace prandom_u32_max() and various open-coded variants of it,
there is now a new family of functions that uses fast rejection
sampling to choose properly uniformly random numbers within an
interval:
get_random_u32_below(ceil) - [0, ceil)
get_random_u32_above(floor) - (floor, U32_MAX]
get_random_u32_inclusive(floor, ceil) - [floor, ceil]
Coccinelle was used to convert all current users of
prandom_u32_max(), as well as many open-coded patterns, resulting in
improvements throughout the tree.
I'll have a "late" 6.1-rc1 pull for you that removes the now unused
prandom_u32_max() function, just in case any other trees add a new
use case of it that needs to converted. According to linux-next,
there may be two trivial cases of prandom_u32_max() reintroductions
that are fixable with a 's/.../.../'. So I'll have for you a final
conversion patch doing that alongside the removal patch during the
second week.
This is a treewide change that touches many files throughout.
- More consistent use of get_random_canary().
- Updates to comments, documentation, tests, headers, and
simplification in configuration.
- The arch_get_random*_early() abstraction was only used by arm64 and
wasn't entirely useful, so this has been replaced by code that works
in all relevant contexts.
- The kernel will use and manage random seeds in non-volatile EFI
variables, refreshing a variable with a fresh seed when the RNG is
initialized. The RNG GUID namespace is then hidden from efivarfs to
prevent accidental leakage.
These changes are split into random.c infrastructure code used in the
EFI subsystem, in this pull request, and related support inside of
EFISTUB, in Ard's EFI tree. These are co-dependent for full
functionality, but the order of merging doesn't matter.
- Part of the infrastructure added for the EFI support is also used for
an improvement to the way vsprintf initializes its siphash key,
replacing an sleep loop wart.
- The hardware RNG framework now always calls its correct random.c
input function, add_hwgenerator_randomness(), rather than sometimes
going through helpers better suited for other cases.
- The add_latent_entropy() function has long been called from the fork
handler, but is a no-op when the latent entropy gcc plugin isn't
used, which is fine for the purposes of latent entropy.
But it was missing out on the cycle counter that was also being mixed
in beside the latent entropy variable. So now, if the latent entropy
gcc plugin isn't enabled, add_latent_entropy() will expand to a call
to add_device_randomness(NULL, 0), which adds a cycle counter,
without the absent latent entropy variable.
- The RNG is now reseeded from a delayed worker, rather than on demand
when used. Always running from a worker allows it to make use of the
CPU RNG on platforms like S390x, whose instructions are too slow to
do so from interrupts. It also has the effect of adding in new inputs
more frequently with more regularity, amounting to a long term
transcript of random values. Plus, it helps a bit with the upcoming
vDSO implementation (which isn't yet ready for 6.2).
- The jitter entropy algorithm now tries to execute on many different
CPUs, round-robining, in hopes of hitting even more memory latencies
and other unpredictable effects. It also will mix in a cycle counter
when the entropy timer fires, in addition to being mixed in from the
main loop, to account more explicitly for fluctuations in that timer
firing. And the state it touches is now kept within the same cache
line, so that it's assured that the different execution contexts will
cause latencies.
* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (23 commits)
random: include <linux/once.h> in the right header
random: align entropy_timer_state to cache line
random: mix in cycle counter when jitter timer fires
random: spread out jitter callback to different CPUs
random: remove extraneous period and add a missing one in comments
efi: random: refresh non-volatile random seed when RNG is initialized
vsprintf: initialize siphash key using notifier
random: add back async readiness notifier
random: reseed in delayed work rather than on-demand
random: always mix cycle counter in add_latent_entropy()
hw_random: use add_hwgenerator_randomness() for early entropy
random: modernize documentation comment on get_random_bytes()
random: adjust comment to account for removed function
random: remove early archrandom abstraction
random: use random.trust_{bootloader,cpu} command line option only
stackprotector: actually use get_random_canary()
stackprotector: move get_random_canary() into stackprotector.h
treewide: use get_random_u32_inclusive() when possible
treewide: use get_random_u32_{above,below}() instead of manual loop
treewide: use get_random_u32_below() instead of deprecated function
...
|
||
|
Linus Torvalds
|
1cab145a94 |
Add a sysctl to control the split lock misery mode
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||
|
Linus Torvalds
|
47477c84b8 |
s390 updates for 6.2 merge window
- Factor out handle_write() function and simplify 3215 console
write operation.
- When 3170 terminal emulator is connected to the 3215 console
driver the boot time could be very long due to limited buffer
space or missing operator input. Add con3215_drop command line
parameter and con3215_drop sysfs attribute file to instruct
the kernel drop console data when such conditions are met.
- Fix white space errors in 3215 console driver.
- Move enum paiext_mode definition to a header file and rename
it to paievt_mode to indicate this is now used for several
events. Rename PAI_MODE_COUNTER to PAI_MODE_COUNTING to make
consistent with PAI_MODE_SAMPLING.
- Simplify the logic of PMU pai_crypto mapped buffer reference
counter and make it consistent with PMU pai_ext.
- Rename PMU pai_crypto mapped buffer structure member users
to active_events to make it consistent with PMU pai_ext.
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option.
This results in saving of 12K per 1M hugetlb page (~1.2%)
and 32764K per 2G hugetlb page (~1.6%).
- Use generic serial.h, bugs.h, shmparam.h and vga.h header
files and scrap s390-specific versions.
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning
and provide sane CPU-to-node and CPU-to-CPU distance mappings
implementat a minimal version of setup_per_cpu_areas().
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes.
- Avoid unnecessary lookup of a pointer to MSI descriptor when
setting IRQ affinity for a PCI device.
- Get rid of "an incompatible function type cast" warning by
changing debug_sprintf_format_fn() function prototype so it
matches the debug_format_proc_t function type.
- Remove unused info_blk_hdr__pcpus() and get_page_state()
functions.
- Get rid of clang "unused unused insn cache ops function"
warning by moving s390_insn definition to a private header.
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE
is enabled.
- Use kstrobool() to parse sclp_con_drop parameter to make it
identical to the con3215_drop parameter and allow passing
values like "yes" and "true".
- Use sysfs_emit() for all SCLP sysfs show functions, which is
the current standard way to generate output strings.
- Make SCLP con_drop sysfs attribute also writable and allow to
change its value during runtime. This makes SCLP console drop
handling consistent with the 3215 device driver.
- Virtual and physical addresses are indentical on s390. However,
there is still a confusion when pointers are directly casted to
physical addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers.
- Support for power managemant has been removed from s390 since
quite some time. Remove unused power managemant code from the
appldata device driver.
- Allow memory tools like KASAN see memory accesses from the
checksum code. Switch to GENERIC_CSUM if KASAN is enabled,
just like x86 does.
- Add support of ECKD DASDs disks so it could be used as boot
and dump devices.
- Follow checkpatch recommendations and use octal values instead
of S_IRUGO and S_IWUSR for dump device attributes in sysfs.
- Changes to vx-insn.h do not cause a recompile of C files that
use asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include
header file to avoid this problem.
- Use vector instruction macros instead of byte patterns to
increase register validation routine readability.
- The current machine check register validation handling does not
take into account various scenarios and might lead to killing a
wrong user process or potentially ignore corrupted FPU registers.
Simplify logic of the machine check handler and stop the whole
machine if the previous context was kerenel mode. If the previous
context was user mode, kill the current task.
- Introduce sclp_emergency_printk() function which can be used to
emit a message in emergency cases. It is supposed to be used in
cases where regular console device drivers may not work anymore,
e.g. unrecoverable machine checks.
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation.
- In case a system will be stopped because of an unrecoverable
machine check error print the machine check interruption code
to give a hint of what went wrong.
- Move storage error checking from the assembly entry code to C
in order to simplify machine check handling. Enter the handler
with DAT turned on, which simplifies the entry code even more.
- The machine check extended save areas are allocated using
a private "nmi_save_areas" slab cache which guarantees a
required power-of-two alignment. Get rid of that cache in
favour of kmalloc().
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Merge tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Factor out handle_write() function and simplify 3215 console write
operation
- When 3170 terminal emulator is connected to the 3215 console driver
the boot time could be very long due to limited buffer space or
missing operator input. Add con3215_drop command line parameter and
con3215_drop sysfs attribute file to instruct the kernel drop console
data when such conditions are met
- Fix white space errors in 3215 console driver
- Move enum paiext_mode definition to a header file and rename it to
paievt_mode to indicate this is now used for several events. Rename
PAI_MODE_COUNTER to PAI_MODE_COUNTING to make consistent with
PAI_MODE_SAMPLING
- Simplify the logic of PMU pai_crypto mapped buffer reference counter
and make it consistent with PMU pai_ext
- Rename PMU pai_crypto mapped buffer structure member users to
active_events to make it consistent with PMU pai_ext
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option. This
results in saving of 12K per 1M hugetlb page (~1.2%) and 32764K per
2G hugetlb page (~1.6%)
- Use generic serial.h, bugs.h, shmparam.h and vga.h header files and
scrap s390-specific versions
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning and
provide sane CPU-to-node and CPU-to-CPU distance mappings implementat
a minimal version of setup_per_cpu_areas()
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes
- Avoid unnecessary lookup of a pointer to MSI descriptor when setting
IRQ affinity for a PCI device
- Get rid of "an incompatible function type cast" warning by changing
debug_sprintf_format_fn() function prototype so it matches the
debug_format_proc_t function type
- Remove unused info_blk_hdr__pcpus() and get_page_state() functions
- Get rid of clang "unused unused insn cache ops function" warning by
moving s390_insn definition to a private header
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE is
enabled
- Use kstrobool() to parse sclp_con_drop parameter to make it identical
to the con3215_drop parameter and allow passing values like "yes" and
"true"
- Use sysfs_emit() for all SCLP sysfs show functions, which is the
current standard way to generate output strings
- Make SCLP con_drop sysfs attribute also writable and allow to change
its value during runtime. This makes SCLP console drop handling
consistent with the 3215 device driver
- Virtual and physical addresses are indentical on s390. However, there
is still a confusion when pointers are directly casted to physical
addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers
- Support for power managemant has been removed from s390 since quite
some time. Remove unused power managemant code from the appldata
device driver
- Allow memory tools like KASAN see memory accesses from the checksum
code. Switch to GENERIC_CSUM if KASAN is enabled, just like x86 does
- Add support of ECKD DASDs disks so it could be used as boot and dump
devices
- Follow checkpatch recommendations and use octal values instead of
S_IRUGO and S_IWUSR for dump device attributes in sysfs
- Changes to vx-insn.h do not cause a recompile of C files that use
asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include header
file to avoid this problem
- Use vector instruction macros instead of byte patterns to increase
register validation routine readability
- The current machine check register validation handling does not take
into account various scenarios and might lead to killing a wrong user
process or potentially ignore corrupted FPU registers. Simplify logic
of the machine check handler and stop the whole machine if the
previous context was kerenel mode. If the previous context was user
mode, kill the current task
- Introduce sclp_emergency_printk() function which can be used to emit
a message in emergency cases. It is supposed to be used in cases
where regular console device drivers may not work anymore, e.g.
unrecoverable machine checks
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation
- In case a system will be stopped because of an unrecoverable machine
check error print the machine check interruption code to give a hint
of what went wrong
- Move storage error checking from the assembly entry code to C in
order to simplify machine check handling. Enter the handler with DAT
turned on, which simplifies the entry code even more
- The machine check extended save areas are allocated using a private
"nmi_save_areas" slab cache which guarantees a required power-of-two
alignment. Get rid of that cache in favour of kmalloc()
* tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (38 commits)
s390/nmi: get rid of private slab cache
s390/nmi: move storage error checking back to C, enter with DAT on
s390/nmi: print machine check interruption code before stopping system
s390/sclp: introduce sclp_emergency_printk()
s390/sclp: keep sclp_early_sccb
s390/nmi: rework register validation handling
s390/nmi: use vector instruction macros instead of byte patterns
s390/vx: add vx-insn.h wrapper include file
s390/ipl: use octal values instead of S_* macros
s390/ipl: add eckd dump support
s390/ipl: add eckd support
vfio/ccw: identify CCW data addresses as physical
vfio/ccw: sort out physical vs virtual pointers usage
s390/checksum: support GENERIC_CSUM, enable it for KASAN
s390/appldata: remove power management callbacks
s390/cio: sort out physical vs virtual pointers usage
s390/sclp: allow to change sclp_console_drop during runtime
s390/sclp: convert to use sysfs_emit()
s390/sclp: use kstrobool() to parse sclp_con_drop parameter
s390/3270: make raw3270_state_final() depend on CONFIG_TN3270_CONSOLE
...
|
||
|
Linus Torvalds
|
06cff4a58e |
arm64 updates for 6.2
ACPI:
* Enable FPDT support for boot-time profiling
* Fix CPU PMU probing to work better with PREEMPT_RT
* Update SMMUv3 MSI DeviceID parsing to latest IORT spec
* APMT support for probing Arm CoreSight PMU devices
CPU features:
* Advertise new SVE instructions (v2.1)
* Advertise range prefetch instruction
* Advertise CSSC ("Common Short Sequence Compression") scalar
instructions, adding things like min, max, abs, popcount
* Enable DIT (Data Independent Timing) when running in the kernel
* More conversion of system register fields over to the generated
header
CPU misfeatures:
* Workaround for Cortex-A715 erratum #2645198
Dynamic SCS:
* Support for dynamic shadow call stacks to allow switching at
runtime between Clang's SCS implementation and the CPU's
pointer authentication feature when it is supported (complete
with scary DWARF parser!)
Tracing and debug:
* Remove static ftrace in favour of, err, dynamic ftrace!
* Seperate 'struct ftrace_regs' from 'struct pt_regs' in core
ftrace and existing arch code
* Introduce and implement FTRACE_WITH_ARGS on arm64 to replace
the old FTRACE_WITH_REGS
* Extend 'crashkernel=' parameter with default value and fallback
to placement above 4G physical if initial (low) allocation
fails
SVE:
* Optimisation to avoid disabling SVE unconditionally on syscall
entry and just zeroing the non-shared state on return instead
Exceptions:
* Rework of undefined instruction handling to avoid serialisation
on global lock (this includes emulation of user accesses to the
ID registers)
Perf and PMU:
* Support for TLP filters in Hisilicon's PCIe PMU device
* Support for the DDR PMU present in Amlogic Meson G12 SoCs
* Support for the terribly-named "CoreSight PMU" architecture
from Arm (and Nvidia's implementation of said architecture)
Misc:
* Tighten up our boot protocol for systems with memory above
52 bits physical
* Const-ify static keys to satisty jump label asm constraints
* Trivial FFA driver cleanups in preparation for v1.1 support
* Export the kernel_neon_* APIs as GPL symbols
* Harden our instruction generation routines against
instrumentation
* A bunch of robustness improvements to our arch-specific selftests
* Minor cleanups and fixes all over (kbuild, kprobes, kfence, PMU, ...)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"The highlights this time are support for dynamically enabling and
disabling Clang's Shadow Call Stack at boot and a long-awaited
optimisation to the way in which we handle the SVE register state on
system call entry to avoid taking unnecessary traps from userspace.
Summary:
ACPI:
- Enable FPDT support for boot-time profiling
- Fix CPU PMU probing to work better with PREEMPT_RT
- Update SMMUv3 MSI DeviceID parsing to latest IORT spec
- APMT support for probing Arm CoreSight PMU devices
CPU features:
- Advertise new SVE instructions (v2.1)
- Advertise range prefetch instruction
- Advertise CSSC ("Common Short Sequence Compression") scalar
instructions, adding things like min, max, abs, popcount
- Enable DIT (Data Independent Timing) when running in the kernel
- More conversion of system register fields over to the generated
header
CPU misfeatures:
- Workaround for Cortex-A715 erratum #2645198
Dynamic SCS:
- Support for dynamic shadow call stacks to allow switching at
runtime between Clang's SCS implementation and the CPU's pointer
authentication feature when it is supported (complete with scary
DWARF parser!)
Tracing and debug:
- Remove static ftrace in favour of, err, dynamic ftrace!
- Seperate 'struct ftrace_regs' from 'struct pt_regs' in core ftrace
and existing arch code
- Introduce and implement FTRACE_WITH_ARGS on arm64 to replace the
old FTRACE_WITH_REGS
- Extend 'crashkernel=' parameter with default value and fallback to
placement above 4G physical if initial (low) allocation fails
SVE:
- Optimisation to avoid disabling SVE unconditionally on syscall
entry and just zeroing the non-shared state on return instead
Exceptions:
- Rework of undefined instruction handling to avoid serialisation on
global lock (this includes emulation of user accesses to the ID
registers)
Perf and PMU:
- Support for TLP filters in Hisilicon's PCIe PMU device
- Support for the DDR PMU present in Amlogic Meson G12 SoCs
- Support for the terribly-named "CoreSight PMU" architecture from
Arm (and Nvidia's implementation of said architecture)
Misc:
- Tighten up our boot protocol for systems with memory above 52 bits
physical
- Const-ify static keys to satisty jump label asm constraints
- Trivial FFA driver cleanups in preparation for v1.1 support
- Export the kernel_neon_* APIs as GPL symbols
- Harden our instruction generation routines against instrumentation
- A bunch of robustness improvements to our arch-specific selftests
- Minor cleanups and fixes all over (kbuild, kprobes, kfence, PMU, ...)"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (151 commits)
arm64: kprobes: Return DBG_HOOK_ERROR if kprobes can not handle a BRK
arm64: kprobes: Let arch do_page_fault() fix up page fault in user handler
arm64: Prohibit instrumentation on arch_stack_walk()
arm64:uprobe fix the uprobe SWBP_INSN in big-endian
arm64: alternatives: add __init/__initconst to some functions/variables
arm_pmu: Drop redundant armpmu->map_event() in armpmu_event_init()
kselftest/arm64: Allow epoll_wait() to return more than one result
kselftest/arm64: Don't drain output while spawning children
kselftest/arm64: Hold fp-stress children until they're all spawned
arm64/sysreg: Remove duplicate definitions from asm/sysreg.h
arm64/sysreg: Convert ID_DFR1_EL1 to automatic generation
arm64/sysreg: Convert ID_DFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_AFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_MMFR5_EL1 to automatic generation
arm64/sysreg: Convert MVFR2_EL1 to automatic generation
arm64/sysreg: Convert MVFR1_EL1 to automatic generation
arm64/sysreg: Convert MVFR0_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR2_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR1_EL1 to automatic generation
arm64/sysreg: Convert ID_PFR0_EL1 to automatic generation
...
|
||
Joerg Roedel
|
e3eca2e4f6 | Merge branches 'arm/allwinner', 'arm/exynos', 'arm/mediatek', 'arm/rockchip', 'arm/smmu', 'ppc/pamu', 's390', 'x86/vt-d', 'x86/amd' and 'core' into next | ||
Mina Almasry
|
12a5d39552 |
mm: add nodes= arg to memory.reclaim
The nodes= arg instructs the kernel to only scan the given nodes for
proactive reclaim. For example use cases, consider a 2 tier memory
system:
nodes 0,1 -> top tier
nodes 2,3 -> second tier
$ echo "1m nodes=0" > memory.reclaim
This instructs the kernel to attempt to reclaim 1m memory from node 0.
Since node 0 is a top tier node, demotion will be attempted first. This
is useful to direct proactive reclaim to specific nodes that are under
pressure.
$ echo "1m nodes=2,3" > memory.reclaim
This instructs the kernel to attempt to reclaim 1m memory in the second
tier, since this tier of memory has no demotion targets the memory will be
reclaimed.
$ echo "1m nodes=0,1" > memory.reclaim
Instructs the kernel to reclaim memory from the top tier nodes, which can
be desirable according to the userspace policy if there is pressure on the
top tiers. Since these nodes have demotion targets, the kernel will
attempt demotion first.
Since commit
|
||
Volker Lendecke
|
0bf588274f |
Fix path in cifs/usage.rst
/sys/module/... not /proc/module/... Signed-off-by: Volker Lendecke <vl@samba.org> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
Will Deacon
|
10162e78ea |
Merge branch 'for-next/perf' into for-next/core
* for-next/perf: (21 commits) arm_pmu: Drop redundant armpmu->map_event() in armpmu_event_init() drivers/perf: hisi: Add TLP filter support Documentation: perf: Indent filter options list of hisi-pcie-pmu docs: perf: Fix PMU instance name of hisi-pcie-pmu drivers/perf: hisi: Fix some event id for hisi-pcie-pmu arm64/perf: Replace PMU version number '0' with ID_AA64DFR0_EL1_PMUVer_NI perf/amlogic: Remove unused header inclusions of <linux/version.h> perf/amlogic: Fix build error for x86_64 allmodconfig dt-binding: perf: Add Amlogic DDR PMU docs/perf: Add documentation for the Amlogic G12 DDR PMU perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver MAINTAINERS: Update HiSilicon PMU maintainers perf: arm_cspmu: Fix module cyclic dependency perf: arm_cspmu: Fix build failure on x86_64 perf: arm_cspmu: Fix modular builds due to missing MODULE_LICENSE()s perf: arm_cspmu: Add support for NVIDIA SCF and MCF attribute perf: arm_cspmu: Add support for ARM CoreSight PMU driver perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init() perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init() drivers: perf: marvell_cn10k: Fix hotplug callback leak in tad_pmu_init() ... |
||
Kushagra Verma
|
e378cb9aab |
Documentation: Fixed a typo in bootconfig.rst
Fixed a typo in the word 'concatenated'. Signed-off-by: Kushagra Verma <kushagra765@outlook.com> Link: https://lore.kernel.org/r/HK0PR01MB2801DA243B726141A97FE92EF8179@HK0PR01MB2801.apcprd01.prod.exchangelabs.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
Xianting Tian
|
c5b4216929
|
Documentation: kdump: describe VMCOREINFO export for RISCV64
The following interrelated definitions and ranges are needed by the
kdump crash tool, which are exported by
"arch/riscv/kernel/crash_core.c":
VA_BITS,
PAGE_OFFSET,
phys_ram_base,
KERNEL_LINK_ADDR,
MODULES_VADDR ~ MODULES_END,
VMALLOC_START ~ VMALLOC_END,
VMEMMAP_START ~ VMEMMAP_END,
Document these RISCV64 exports above.
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20221026144208.373504-3-xianting.tian@linux.alibaba.com
[Palmer: wrap commit text]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
|
||
Peter Korsgaard
|
035641b01e |
dm init: add dm-mod.waitfor to wait for asynchronously probed block devices
Just calling wait_for_device_probe() is not enough to ensure that
asynchronously probed block devices are available (E.G. mmc, usb), so
add a "dm-mod.waitfor=<device1>[,..,<deviceN>]" parameter to get
dm-init to explicitly wait for specific block devices before
initializing the tables with logic similar to the rootwait logic that
was introduced with commit
|
||
Kees Cook
|
9fc9e278a5 |
panic: Introduce warn_limit
Like oops_limit, add warn_limit for limiting the number of warnings when panic_on_warn is not set. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: "Jason A. Donenfeld" <Jason@zx2c4.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Petr Mladek <pmladek@suse.com> Cc: tangmeng <tangmeng@uniontech.com> Cc: "Guilherme G. Piccoli" <gpiccoli@igalia.com> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-doc@vger.kernel.org Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20221117234328.594699-5-keescook@chromium.org |
||
|
Kees Cook
|
de92f65719 |
exit: Allow oops_limit to be disabled
In preparation for keeping oops_limit logic in sync with warn_limit, have oops_limit == 0 disable checking the Oops counter. Cc: Jann Horn <jannh@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: "Jason A. Donenfeld" <Jason@zx2c4.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Huang Ying <ying.huang@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-doc@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> |
||
Nicholas Piggin
|
6b34a099fa |
powerpc/64s/hash: add stress_hpt kernel boot option to increase hash faults
This option increases the number of hash misses by limiting the number of kernel HPT entries, by keeping a per-CPU record of the last kernel HPTEs installed, and removing that from the hash table on the next hash insertion. A timer round-robins CPUs removing remaining kernel HPTEs and clearing the TLB (in the case of bare metal) to increase and slightly randomise kernel fault activity. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Add comment about NR_CPUS usage, fixup whitespace] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20221024030150.852517-1-npiggin@gmail.com |
||
Jann Horn
|
d4ccd54d28 |
exit: Put an upper limit on how often we can oops
Many Linux systems are configured to not panic on oops; but allowing an attacker to oops the system **really** often can make even bugs that look completely unexploitable exploitable (like NULL dereferences and such) if each crash elevates a refcount by one or a lock is taken in read mode, and this causes a counter to eventually overflow. The most interesting counters for this are 32 bits wide (like open-coded refcounts that don't use refcount_t). (The ldsem reader count on 32-bit platforms is just 16 bits, but probably nobody cares about 32-bit platforms that much nowadays.) So let's panic the system if the kernel is constantly oopsing. The speed of oopsing 2^32 times probably depends on several factors, like how long the stack trace is and which unwinder you're using; an empirically important one is whether your console is showing a graphical environment or a text console that oopses will be printed to. In a quick single-threaded benchmark, it looks like oopsing in a vfork() child with a very short stack trace only takes ~510 microseconds per run when a graphical console is active; but switching to a text console that oopses are printed to slows it down around 87x, to ~45 milliseconds per run. (Adding more threads makes this faster, but the actual oops printing happens under &die_lock on x86, so you can maybe speed this up by a factor of around 2 and then any further improvement gets eaten up by lock contention.) It looks like it would take around 8-12 days to overflow a 32-bit counter with repeated oopsing on a multi-core X86 system running a graphical environment; both me (in an X86 VM) and Seth (with a distro kernel on normal hardware in a standard configuration) got numbers in that ballpark. 12 days aren't *that* short on a desktop system, and you'd likely need much longer on a typical server system (assuming that people don't run graphical desktop environments on their servers), and this is a *very* noisy and violent approach to exploiting the kernel; and it also seems to take orders of magnitude longer on some machines, probably because stuff like EFI pstore will slow it down a ton if that's active. Signed-off-by: Jann Horn <jannh@google.com> Link: https://lore.kernel.org/r/20221107201317.324457-1-jannh@google.com Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20221117234328.594699-2-keescook@chromium.org |
||
Jian Wen
|
9b34a307f3 |
docs: admin-guide: cgroup-v1: update description of inactive_file
MADV_FREE pages have been moved into the LRU_INACTIVE_FILE list by commit
|
||
Sergey Senozhatsky
|
77db7bb56b |
zram: add incompressible flag to read_block_state()
Add a new flag to zram block state that shows if the page is incompressible: that none of the algorithm (including secondary ones) could compress it. Link: https://lkml.kernel.org/r/20221109115047.2921851-14-senozhatsky@chromium.org Suggested-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Alexey Romanov <avromanov@sberdevices.ru> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Sergey Senozhatsky
|
b46f9ea3cb |
zram: add incompressible writeback
Add support for incompressible pages writeback: echo incompressible > /sys/block/zramX/writeback Link: https://lkml.kernel.org/r/20221109115047.2921851-13-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Alexey Romanov <avromanov@sberdevices.ru> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Sergey Senozhatsky
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443dd79806 |
documentation: add zram recompression documentation
Document user-space visible device attributes that are enabled by ZRAM_MULTI_COMP. Link: https://lkml.kernel.org/r/20221109115047.2921851-12-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Alexey Romanov <avromanov@sberdevices.ru> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Sergey Senozhatsky
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60e9b39ebe |
zram: add recompress flag to read_block_state()
Add a new flag to zram block state that shows if the page was recompressed (using alternative compression algorithm). Link: https://lkml.kernel.org/r/20221109115047.2921851-6-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Alexey Romanov <avromanov@sberdevices.ru> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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SeongJae Park
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7f0a86f3c9 |
Docs/admin-guide/mm/damon/usage: document schemes/<s>/tried_regions sysfs directory
Document 'tried_regions' directory in DAMON sysfs interface usage in the administrator guide. Link: https://lkml.kernel.org/r/20221101220328.95765-8-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Johannes Weiner
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57e9cc50f4 |
mm: vmscan: split khugepaged stats from direct reclaim stats
Direct reclaim stats are useful for identifying a potential source for application latency, as well as spotting issues with kswapd. However, khugepaged currently distorts the picture: as a kernel thread it doesn't impose allocation latencies on userspace, and it explicitly opts out of kswapd reclaim. Its activity showing up in the direct reclaim stats is misleading. Counting it as kswapd reclaim could also cause confusion when trying to understand actual kswapd behavior. Break out khugepaged from the direct reclaim counters into new pgsteal_khugepaged, pgdemote_khugepaged, pgscan_khugepaged counters. Test with a huge executable (CONFIG_READ_ONLY_THP_FOR_FS): pgsteal_kswapd 1342185 pgsteal_direct 0 pgsteal_khugepaged 3623 pgscan_kswapd 1345025 pgscan_direct 0 pgscan_khugepaged 3623 Link: https://lkml.kernel.org/r/20221026180133.377671-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reported-by: Eric Bergen <ebergen@meta.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Yang Shi <shy828301@gmail.com> Cc: Yosry Ahmed <yosryahmed@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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SeongJae Park
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1b01663875 |
Docs/admin-guide/mm/damon/usage: fix wrong usage example of init_regions file
DAMON debugfs interface assumes the users will write all inputs at once. However, redirecting a string of multiple lines sometimes end up writing line by line. Therefore, the example usage of 'init_regions' file, which writes input as a string of multiple lines can fail. Fix it to use a single line string instead. Also update the description of the usage to not assume users will write inputs in multiple lines. Link: https://lkml.kernel.org/r/20221024174619.15600-3-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Vinicius Petrucci <vpetrucci@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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SeongJae Park
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bd4149290c |
Docs/admin-guide/mm/damon/usage: describe the rules of sysfs region directories
Patch series "Docs/admin-buide/mm/damon/usage: minor fixes". DAMON usage document contains an unclear description and a wrong usage example. This patchset fixes the two minor problems. This patch (of 2): Target region directories of DAMON sysfs interface should contain no overlap and sorted by the address, but not clearly documented. Actually, a user had an issue[1] due to the poor documentation. Add clear description of it on the usage document. [1] https://lore.kernel.org/damon/CAEZ6=UNUcH2BvJj++OrT=XQLdkidU79wmCO=tantSOB36pPNTg@mail.gmail.com/ Link: https://lkml.kernel.org/r/20221024174619.15600-1-sj@kernel.org Link: https://lkml.kernel.org/r/20221024174619.15600-2-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Reported-by: Vinicius Petrucci <vpetrucci@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Dave Airlie
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795bd9bb21 |
This tag contains the patches that add the new compute acceleration
subsystem, which is part of the DRM subsystem. The patches: - Add a new directory at drivers/accel. - Add a new major (261) for compute accelerators. - Add a new DRM minor type for compute accelerators. - Integrate the accel core code with DRM core code. - Add documentation for the accel subsystem. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE7TEboABC71LctBLFZR1NuKta54AFAmN8r2UACgkQZR1NuKta 54CJzwf/SkjfYoo8bLi1eedSSLZQZiNFtkqUqH0jho2UT5MG3yoPasXe/hovnf6+ SOE1fMO/VpfQPJ5xqjuHwUaGxXIFFi1vkMllhZrODljTP0dNjhgWc7WTTsKTj586 pMpYWA8bDfoF0SSGfEYbDi7qqiZFFVP6UeM4jvQgPhURNbLhF2dx69D3K1ZLvJJE 673ZzJkZcnZRdTjypCE2gCOcXpXclbNenFHqMkuaX6JfGu+8YPR0GGVWiBfo+FvO gNnxXDhBmYdn+Khzzxr+ssewOklHM+Moe2Iv20jZQgVsHot3c+bJx+7BPBHpg5Ib 4uqIrwMZENIQoH+FgYxSRMfEn0JI/w== =RCyB -----END PGP SIGNATURE----- Merge tag 'drm-accel-2022-11-22' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/accel into drm-next This tag contains the patches that add the new compute acceleration subsystem, which is part of the DRM subsystem. The patches: - Add a new directory at drivers/accel. - Add a new major (261) for compute accelerators. - Add a new DRM minor type for compute accelerators. - Integrate the accel core code with DRM core code. - Add documentation for the accel subsystem. Signed-off-by: Dave Airlie <airlied@redhat.com> some acks from the list (some are in the patch series): Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Sonal Santan <sonal.santan@amd.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Tested-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> From: Oded Gabbay <ogabbay@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122112222.GA352082@ogabbay-vm-u20.habana-labs.com |
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Yicong Yang
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17d573984d |
drivers/perf: hisi: Add TLP filter support
The PMU support to filter the TLP when counting the bandwidth with below options: - only count the TLP headers - only count the TLP payloads - count both TLP headers and payloads In the current driver it's default to count the TLP payloads only, which will have an implicity side effects that on the traffic only have header only TLPs, we'll get no data. Make this user configuration through "len_mode" parameter and make it default to count both TLP headers and payloads when user not specified. Also update the documentation for it. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Link: https://lore.kernel.org/r/20221117084136.53572-5-yangyicong@huawei.com Signed-off-by: Will Deacon <will@kernel.org> |
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Bagas Sanjaya
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c8dff677e6 |
Documentation: perf: Indent filter options list of hisi-pcie-pmu
The "Filter options" list have a rather ugly indentation. Also, the first paragraph after list name is rendered without separator (as continuation from the name). Align the list by indenting the list items and add a blank line separator for each list name. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Link: https://lore.kernel.org/r/20221117084136.53572-4-yangyicong@huawei.com Signed-off-by: Will Deacon <will@kernel.org> |
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Yicong Yang
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eb79f12b4c |
docs: perf: Fix PMU instance name of hisi-pcie-pmu
The PMU instance will be called hisi_pcie<sicl>_core<core> rather than
hisi_pcie<sicl>_<core>. Fix this in the documentation.
Fixes:
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Deming Wang
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8dec5779a0 |
media: vivid.rst: fix TV and S-Video Inputs section
remove the double word 'in'. Signed-off-by: Deming Wang <wangdeming@inspur.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
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Hans Verkuil
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e9305a003f |
media: admin-guide: cec.rst
Document administration details about CEC devices. This was formerly documented in a cec-status.txt I kept on my website, but this really belongs here as an admin guide. Updated the original cec-status.txt, and converted it to .rst. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
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Daniel Almeida
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0c078e310b |
media: visl: add virtual stateless decoder driver
A virtual stateless device for stateless uAPI development purposes. This tool's objective is to help the development and testing of userspace applications that use the V4L2 stateless API to decode media. A userspace implementation can use visl to run a decoding loop even when no hardware is available or when the kernel uAPI for the codec has not been upstreamed yet. This can reveal bugs at an early stage. This driver can also trace the contents of the V4L2 controls submitted to it. It can also dump the contents of the vb2 buffers through a debugfs interface. This is in many ways similar to the tracing infrastructure available for other popular encode/decode APIs out there and can help develop a userspace application by using another (working) one as a reference. Note that no actual decoding of video frames is performed by visl. The V4L2 test pattern generator is used to write various debug information to the capture buffers instead. Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
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Dave Airlie
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d47f958083 |
Linux 6.1-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmN6wAgeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG0EYH/3/RO90NbrFItraN Lzr+d3VdbGjTu8xd1M+PRTmwh3zxLpB+Jwqr0T0A2gzL9B/D+AUPUJdrCVbv9DqS FLJAVqoeV20dNBAHSffOOLPsgCZ+Eu+LzlNN7Iqde0e8cyZICFMNktitui84Xm/i 1NgFVgz9OZ6+aieYvUj3FrFq0p8GTIaC/oybDZrxYKcO8ZzKVMJ11swRw10wwq0g qOOECvV3w7wlQ8upQZkzFxItKFc7EexZI6R4elXeGSJJ9Hlc092dv/zsKB9dwV+k WcwkJrZRoezYXzgGBFxUcQtzi+ethjrPjuJuM1rYLUSIcfIW/0lkaSLgRoBu8D+I 1GfXkXs= =gt6P -----END PGP SIGNATURE----- Backmerge tag 'v6.1-rc6' into drm-next Linux 6.1-rc6 This is needed for drm-misc-next and tegra. Signed-off-by: Dave Airlie <airlied@redhat.com> |
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Steven Rostedt (Google)
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a01fdc897f |
tracing: Add trace_trigger kernel command line option
Allow triggers to be enabled at kernel boot up. For example:
trace_trigger="sched_switch.stacktrace if prev_state == 2"
The above will enable the stacktrace trigger on top of the sched_switch
event and only trigger if its prev_state is 2 (TASK_UNINTERRUPTIBLE). Then
at boot up, a stacktrace will trigger and be recorded in the tracing ring
buffer every time the sched_switch happens where the previous state is
TASK_INTERRUPTIBLE.
Another useful trigger would be "traceoff" which can stop tracing on an
event if a field of the event matches a certain value defined by the
filter ("if" statement).
Link: https://lore.kernel.org/linux-trace-kernel/20221020210056.0d8d0a5b@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Perry Yuan
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1056d31470 |
Documentation: add amd-pstate kernel command line options
Add a new amd pstate driver command line option to enable driver passive working mode via MSR and shared memory interface to request desired performance within abstract scale and the power management firmware (SMU) convert the perf requests into actual hardware pstates. Also the `disable` parameter can disable the pstate driver loading by adding `amd_pstate=disable` to kernel command line. Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Tested-by: Wyes Karny <wyes.karny@amd.com> Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Perry Yuan
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8a2cbf72a4 |
Documentation: amd-pstate: add driver working mode introduction
Introduce the `amd_pstate` driver new working mode with `amd_pstate=passive` added to kernel command line. If there is no passive mode enabled by user, amd_pstate driver will be disabled by default for now. Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Tested-by: Wyes Karny <wyes.karny@amd.com> Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |