3088 Commits

Author	SHA1	Message	Date
Linus Torvalds	abf2050f51	media updates for v6.12-rc1 ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAmbxByQACgkQCF8+vY7k 4RUWeg//QHB1sjjYsRs0IF6wBdzxWwpjqudxLjUTDEMKHVHUuCPRzMayZrokfTha /NOt+SSKpZqRtCjKuyLz7lup81b+oFXQ4CKChXJvLVJ+wuFFd/B9fbs3yw5fCWFk odHjVUpLOqdDSOHcqisKwim0ENzvJ4/rvFiiWUPqPJbjWYEyXX4eW3F8JlAXkdkI OGX9ixPsdAG2vdXpIsp3T3/KKTo7qwM6j/ckQ4SxkrTHMMdvJrkl3HutibaqOmOq FcR4Y9XSkBsNlrJ9CvG/uOSz5aQrY7A7s21OiH59FFyeOWsvKGFkLmAox/+M6vg8 G/cjZjK3AiDll2fmAWo33MuyQG9HOTEFjWNN3cusr1gTcFowqH+cIjV3SKa1dH/1 G+4KoOzJdkFrt1Y21zg+tWejoOjdPpklTiSAhgYRSblqsMbr3XF0cOqnSs5JOKo3 ZgMko/JEI0CKltYc7kcTy8w6fg3g8B9RJ7nATgsKEQsln1hEy/Bii482tk6vbb9g 7YLAzrExWnLjxOxco/LzHcBkQMov6/HA5ntEMieaybRcMPsXE8WNA2ElNOFOREgP MSWqoQD+7CuqYRnmfpQw2SPA0nRy2BT4ltITsA/ksfBWLvoK8UX99eiznkpWSm7p 191mGPalKV07RUVXgXRTynTvfma6oTKIaebvPLoVaKg11cC5hq0= =TPMV -----END PGP SIGNATURE----- Merge tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - New CEC driver: Extron DA HD 4K Plus - Lots of driver fixes, cleanups and improvements * tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (179 commits) media: atomisp: Use clamp() in ia_css_eed1_8_vmem_encode() media: atomisp: Fix eed1_8 code assigning signed values to an unsigned variable media: atomisp: set lock before calling vb2_queue_init() media: atomisp: Improve binary finding debug logging media: atomisp: Drop dev_dbg() calls from hmm_[alloc|free]() media: atomisp: csi2-bridge: Add DMI quirk for t4ka3 on Xiaomi Mipad2 media: atomisp: add missing wait_prepare/finish ops media: atomisp: Remove unused declaration media: atomisp: use clamp() in compute_coring() media: atomisp: use clamp() in ia_css_eed1_8_encode() media: atomisp: Simplify ia_css_pipe_create_cas_scaler_desc_single_output() media: atomisp: Replace rarely used macro from math_support.h media: atomisp: Remove duplicated leftover, i.e. sh_css_dvs_info.h media: atomisp: bnr: fix trailing statement media: atomisp: move trailing */ to separate lines media: atomisp: move trailing statement to next line. media: atomisp: Fix trailing statement in ia_css_de.host.c media: atomisp: Fix spelling mistakes in atomisp.h media: atomisp: Fix spelling mistakes in atomisp_platform.h media: atomisp: Fix spelling mistake in csi_rx_public.h ...	2024-09-23 15:27:58 -07:00
Linus Torvalds	af9c191ac2	ring-buffer: Updates for v6.12: ... - Merged v6.11-rc3 into trace/ring-buffer/core The v6.10 ring buffer pull request was not made due to Mathieu Desnoyers making a comment to the pull request. Mathieu and I resolved it on IRC, but we did not let Linus know that it was resolved. Linus did not do the pull thinking it still had some unresolved issues. The ring buffer work for 6.12 was dependent on both this pull request as well as the reserve_mem kernel command line option that was going upstream through the memory management tree. The ring buffer repo was being used by others so it could not be rebased. In order to continue the work, the v6.11-rc3 branch was pulled in to get access to the reserve_mem work. This has the 6.11 pull request that did not make it into 6.11, which was: tracing/ring-buffer: Have persistent buffer across reboots This allows for the tracing instance ring buffer to stay persistent across reboots. The way this is done is by adding to the kernel command line: trace_instance=boot_map@0x285400000:12M This will reserve 12 megabytes at the address 0x285400000, and then map the tracing instance "boot_map" ring buffer to that memory. This will appear as a normal instance in the tracefs system: /sys/kernel/tracing/instances/boot_map A user could enable tracing in that instance, and on reboot or kernel crash, if the memory is not wiped by the firmware, it will recreate the trace in that instance. For example, if one was debugging a shutdown of a kernel reboot: # cd /sys/kernel/tracing # echo function > instances/boot_map/current_tracer # reboot [..] # cd /sys/kernel/tracing # tail instances/boot_map/trace swapper/0-1 [000] d..1. 164.549800: restore_boot_irq_mode <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549801: native_restore_boot_irq_mode <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549802: disconnect_bsp_APIC <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549811: hpet_disable <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549812: iommu_shutdown_noop <-native_machine_restart swapper/0-1 [000] d..1. 164.549813: native_machine_emergency_restart <-__do_sys_reboot swapper/0-1 [000] d..1. 164.549813: tboot_shutdown <-native_machine_emergency_restart swapper/0-1 [000] d..1. 164.549820: acpi_reboot <-native_machine_emergency_restart swapper/0-1 [000] d..1. 164.549821: acpi_reset <-acpi_reboot swapper/0-1 [000] d..1. 164.549822: acpi_os_write_port <-acpi_reboot On reboot, the buffer is examined to make sure it is valid. The validation check even steps through every event to make sure the meta data of the event is correct. If any test fails, it will simply reset the buffer, and the buffer will be empty on boot. The new changes for 6.12 are: - Allow the tracing persistent boot buffer to use the "reserve_mem" option Instead of having the admin find a physical address to store the persistent buffer, which can be very tedious if they have to administrate several different machines, allow them to use the "reserve_mem" option that will find a location for them. It is not as reliable because of KASLR, as the loading of the kernel in different locations can cause the memory allocated to be inconsistent. Booting with "nokaslr" can make reserve_mem more reliable. - Have function graph tracer handle offsets from a previous boot. The ring buffer output from a previous boot may have different addresses due to kaslr. Have the function graph tracer handle these by using the delta from the previous boot to the new boot address space. - Only reset the saved meta offset when the buffer is started or reset In the persistent memory meta data, it holds the previous address space information, so that it can calculate the delta to have function tracing work. But this gets updated after being read to hold the new address space. But if the buffer isn't used for that boot, on reboot, the delta is now calculated from the previous boot and not the boot that holds the data in the ring buffer. This causes the functions not to be shown. Do not save the address space information of the current kernel until it is being recorded. - Add a magic variable to test the valid meta data Add a magic variable in the meta data that can also be used for validation. The validator of the previous buffer doesn't need this magic data, but it can be used if the meta data is changed by a new kernel, which may have the same format that passes the validator but is used differently. This magic number can also be used as a "versioning" of the meta data. - Align user space mapped ring buffer sub buffers to improve TLB entries Linus mentioned that the mapped ring buffer sub buffers were misaligned between the meta page and the sub-buffers, so that if the sub-buffers were bigger than PAGE_SIZE, it wouldn't allow the TLB to use bigger entries. - Add new kernel command line "traceoff" to disable tracing on boot for instances If tracing is enabled for a boot instance, there needs a way to be able to disable it on boot so that new events do not get entered into the ring buffer and be mixed with events from a previous boot, as that can be confusing. - Allow trace_printk() to go to other instances Currently, trace_printk() can only go to the top level instance. When debugging with a persistent buffer, it is really useful to be able to add trace_printk() to go to that buffer, so that you have access to them after a crash. - Do not use "bin_printk()" for traces to a boot instance The bin_printk() saves only a pointer to the printk format in the ring buffer, as the reader of the buffer can still have access to it. But this is not the case if the buffer is from a previous boot. If the trace_printk() is going to a "persistent" buffer, it will use the slower version that writes the printk format into the buffer. - Add command line option to allow trace_printk() to go to an instance Allow the kernel command line to define which instance the trace_printk() goes to, instead of forcing the admin to set it for every boot via the tracefs options. - Start a document that explains how to use tracefs to debug the kernel - Add some more kernel selftests to test user mapped ring buffer -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZu/PxxQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qowiAQCx86Nm48aCACjrvGWCFb+jgQZn8QdO MeK15Fcc5C3b5gEAkJkDKqtul7ybI9+vq+3yNzdl7pO7Y7+pCNzz3PfVaQA= =Ce81 -----END PGP SIGNATURE----- Merge tag 'trace-ring-buffer-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ring-buffer updates from Steven Rostedt: - tracing/ring-buffer: persistent buffer across reboots This allows for the tracing instance ring buffer to stay persistent across reboots. The way this is done is by adding to the kernel command line: trace_instance=boot_map@0x285400000:12M This will reserve 12 megabytes at the address 0x285400000, and then map the tracing instance "boot_map" ring buffer to that memory. This will appear as a normal instance in the tracefs system: /sys/kernel/tracing/instances/boot_map A user could enable tracing in that instance, and on reboot or kernel crash, if the memory is not wiped by the firmware, it will recreate the trace in that instance. For example, if one was debugging a shutdown of a kernel reboot: # cd /sys/kernel/tracing # echo function > instances/boot_map/current_tracer # reboot [..] # cd /sys/kernel/tracing # tail instances/boot_map/trace swapper/0-1 [000] d..1. 164.549800: restore_boot_irq_mode <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549801: native_restore_boot_irq_mode <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549802: disconnect_bsp_APIC <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549811: hpet_disable <-native_machine_shutdown swapper/0-1 [000] d..1. 164.549812: iommu_shutdown_noop <-native_machine_restart swapper/0-1 [000] d..1. 164.549813: native_machine_emergency_restart <-__do_sys_reboot swapper/0-1 [000] d..1. 164.549813: tboot_shutdown <-native_machine_emergency_restart swapper/0-1 [000] d..1. 164.549820: acpi_reboot <-native_machine_emergency_restart swapper/0-1 [000] d..1. 164.549821: acpi_reset <-acpi_reboot swapper/0-1 [000] d..1. 164.549822: acpi_os_write_port <-acpi_reboot On reboot, the buffer is examined to make sure it is valid. The validation check even steps through every event to make sure the meta data of the event is correct. If any test fails, it will simply reset the buffer, and the buffer will be empty on boot. - Allow the tracing persistent boot buffer to use the "reserve_mem" option Instead of having the admin find a physical address to store the persistent buffer, which can be very tedious if they have to administrate several different machines, allow them to use the "reserve_mem" option that will find a location for them. It is not as reliable because of KASLR, as the loading of the kernel in different locations can cause the memory allocated to be inconsistent. Booting with "nokaslr" can make reserve_mem more reliable. - Have function graph tracer handle offsets from a previous boot. The ring buffer output from a previous boot may have different addresses due to kaslr. Have the function graph tracer handle these by using the delta from the previous boot to the new boot address space. - Only reset the saved meta offset when the buffer is started or reset In the persistent memory meta data, it holds the previous address space information, so that it can calculate the delta to have function tracing work. But this gets updated after being read to hold the new address space. But if the buffer isn't used for that boot, on reboot, the delta is now calculated from the previous boot and not the boot that holds the data in the ring buffer. This causes the functions not to be shown. Do not save the address space information of the current kernel until it is being recorded. - Add a magic variable to test the valid meta data Add a magic variable in the meta data that can also be used for validation. The validator of the previous buffer doesn't need this magic data, but it can be used if the meta data is changed by a new kernel, which may have the same format that passes the validator but is used differently. This magic number can also be used as a "versioning" of the meta data. - Align user space mapped ring buffer sub buffers to improve TLB entries Linus mentioned that the mapped ring buffer sub buffers were misaligned between the meta page and the sub-buffers, so that if the sub-buffers were bigger than PAGE_SIZE, it wouldn't allow the TLB to use bigger entries. - Add new kernel command line "traceoff" to disable tracing on boot for instances If tracing is enabled for a boot instance, there needs a way to be able to disable it on boot so that new events do not get entered into the ring buffer and be mixed with events from a previous boot, as that can be confusing. - Allow trace_printk() to go to other instances Currently, trace_printk() can only go to the top level instance. When debugging with a persistent buffer, it is really useful to be able to add trace_printk() to go to that buffer, so that you have access to them after a crash. - Do not use "bin_printk()" for traces to a boot instance The bin_printk() saves only a pointer to the printk format in the ring buffer, as the reader of the buffer can still have access to it. But this is not the case if the buffer is from a previous boot. If the trace_printk() is going to a "persistent" buffer, it will use the slower version that writes the printk format into the buffer. - Add command line option to allow trace_printk() to go to an instance Allow the kernel command line to define which instance the trace_printk() goes to, instead of forcing the admin to set it for every boot via the tracefs options. - Start a document that explains how to use tracefs to debug the kernel - Add some more kernel selftests to test user mapped ring buffer * tag 'trace-ring-buffer-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (28 commits) selftests/ring-buffer: Handle meta-page bigger than the system selftests/ring-buffer: Verify the entire meta-page padding tracing/Documentation: Start a document on how to debug with tracing tracing: Add option to set an instance to be the trace_printk destination tracing: Have trace_printk not use binary prints if boot buffer tracing: Allow trace_printk() to go to other instance buffers tracing: Add "traceoff" flag to boot time tracing instances ring-buffer: Align meta-page to sub-buffers for improved TLB usage ring-buffer: Add magic and struct size to boot up meta data ring-buffer: Don't reset persistent ring-buffer meta saved addresses tracing/fgraph: Have fgraph handle previous boot function addresses tracing: Allow boot instances to use reserve_mem boot memory tracing: Fix ifdef of snapshots to not prevent last_boot_info file ring-buffer: Use vma_pages() helper function tracing: Fix NULL vs IS_ERR() check in enable_instances() tracing: Add last boot delta offset for stack traces tracing: Update function tracing output for previous boot buffer tracing: Handle old buffer mappings for event strings and functions tracing/ring-buffer: Add last_boot_info file to boot instance ring-buffer: Save text and data locations in mapped meta data ...	2024-09-22 09:47:16 -07:00
Linus Torvalds	7856a56541	Many singleton patches - please see the various changelogs for details. ... Quite a lot of nilfs2 work this time around. Notable patch series in this pull request are: "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with assistance from Uwe Kleine-König. Reimplement mul_u64_u64_div_u64() to provide (much) more accurate results. The current implementation was causing Uwe some issues in the PWM drivers. "xz: Updates to license, filters, and compression options" from Lasse Collin. Miscellaneous maintenance and kinor feature work to the xz decompressor. "Fix some GDB command error and add some GDB commands" from Kuan-Ying Lee. Fixes and enhancements to the gdb scripts. "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff Johnson. Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of warnings about this. "nilfs2: add support for some common ioctls" from Ryusuke Konishi. Adds various commonly-available ioctls to nilfs2. "This series fixes a number of formatting issues in kernel doc comments" from Ryusuke Konishi does that. "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke Konishi. Fix issues where -ENOENT was being unintentionally and inappropriately returned to userspace. "nilfs2: assorted cleanups" from Huang Xiaojia. "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke Konishi fixes some issues which can occur on corrupted nilfs2 filesystems. "scripts/decode_stacktrace.sh: improve error reporting and usability" from Luca Ceresoli does those things. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZu7dpAAKCRDdBJ7gKXxA jsPqAPwMDEZyKlfSw7QioEHNHDkmkbP7VYCYR0CbUnppbztwpAD8D37aVbWQ+UzM 3nnOq3W2Pc2o/20zqi8Upf1mnvUrygQ= =/NWE -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: "Many singleton patches - please see the various changelogs for details. Quite a lot of nilfs2 work this time around. Notable patch series in this pull request are: - "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with assistance from Uwe Kleine-König. Reimplement mul_u64_u64_div_u64() to provide (much) more accurate results. The current implementation was causing Uwe some issues in the PWM drivers. - "xz: Updates to license, filters, and compression options" from Lasse Collin. Miscellaneous maintenance and kinor feature work to the xz decompressor. - "Fix some GDB command error and add some GDB commands" from Kuan-Ying Lee. Fixes and enhancements to the gdb scripts. - "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff Johnson. Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of warnings about this. - "nilfs2: add support for some common ioctls" from Ryusuke Konishi. Adds various commonly-available ioctls to nilfs2. - "This series fixes a number of formatting issues in kernel doc comments" from Ryusuke Konishi does that. - "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke Konishi. Fix issues where -ENOENT was being unintentionally and inappropriately returned to userspace. - "nilfs2: assorted cleanups" from Huang Xiaojia. - "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke Konishi fixes some issues which can occur on corrupted nilfs2 filesystems. - "scripts/decode_stacktrace.sh: improve error reporting and usability" from Luca Ceresoli does those things" * tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (103 commits) list: test: increase coverage of list_test_list_replace*() list: test: fix tests for list_cut_position() proc: use __auto_type more treewide: correct the typo 'retun' ocfs2: cleanup return value and mlog in ocfs2_global_read_info() nilfs2: remove duplicate 'unlikely()' usage nilfs2: fix potential oob read in nilfs_btree_check_delete() nilfs2: determine empty node blocks as corrupted nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation tools/mm: rm thp_swap_allocator_test when make clean squashfs: fix percpu address space issues in decompressor_multi_percpu.c lib: glob.c: added null check for character class nilfs2: refactor nilfs_segctor_thread() nilfs2: use kthread_create and kthread_stop for the log writer thread nilfs2: remove sc_timer_task nilfs2: do not repair reserved inode bitmap in nilfs_new_inode() nilfs2: eliminate the shared counter and spinlock for i_generation nilfs2: separate inode type information from i_state field nilfs2: use the BITS_PER_LONG macro ...	2024-09-21 08:20:50 -07:00
Linus Torvalds	617a814f14	ALong with the usual shower of singleton patches, notable patch series in ... this pull request are: "Align kvrealloc() with krealloc()" from Danilo Krummrich. Adds consistency to the APIs and behaviour of these two core allocation functions. This also simplifies/enables Rustification. "Some cleanups for shmem" from Baolin Wang. No functional changes - mode code reuse, better function naming, logic simplifications. "mm: some small page fault cleanups" from Josef Bacik. No functional changes - code cleanups only. "Various memory tiering fixes" from Zi Yan. A small fix and a little cleanup. "mm/swap: remove boilerplate" from Yu Zhao. Code cleanups and simplifications and .text shrinkage. "Kernel stack usage histogram" from Pasha Tatashin and Shakeel Butt. This is a feature, it adds new feilds to /proc/vmstat such as $ grep kstack /proc/vmstat kstack_1k 3 kstack_2k 188 kstack_4k 11391 kstack_8k 243 kstack_16k 0 which tells us that 11391 processes used 4k of stack while none at all used 16k. Useful for some system tuning things, but partivularly useful for "the dynamic kernel stack project". "kmemleak: support for percpu memory leak detect" from Pavel Tikhomirov. Teaches kmemleak to detect leaksage of percpu memory. "mm: memcg: page counters optimizations" from Roman Gushchin. "3 independent small optimizations of page counters". "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from David Hildenbrand. Improves PTE/PMD splitlock detection, makes powerpc/8xx work correctly by design rather than by accident. "mm: remove arch_make_page_accessible()" from David Hildenbrand. Some folio conversions which make arch_make_page_accessible() unneeded. "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David Finkel. Cleans up and fixes our handling of the resetting of the cgroup/process peak-memory-use detector. "Make core VMA operations internal and testable" from Lorenzo Stoakes. Rationalizaion and encapsulation of the VMA manipulation APIs. With a view to better enable testing of the VMA functions, even from a userspace-only harness. "mm: zswap: fixes for global shrinker" from Takero Funaki. Fix issues in the zswap global shrinker, resulting in improved performance. "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao. Fill in some missing info in /proc/zoneinfo. "mm: replace follow_page() by folio_walk" from David Hildenbrand. Code cleanups and rationalizations (conversion to folio_walk()) resulting in the removal of follow_page(). "improving dynamic zswap shrinker protection scheme" from Nhat Pham. Some tuning to improve zswap's dynamic shrinker. Significant reductions in swapin and improvements in performance are shown. "mm: Fix several issues with unaccepted memory" from Kirill Shutemov. Improvements to the new unaccepted memory feature, "mm/mprotect: Fix dax puds" from Peter Xu. Implements mprotect on DAX PUDs. This was missing, although nobody seems to have notied yet. "Introduce a store type enum for the Maple tree" from Sidhartha Kumar. Cleanups and modest performance improvements for the maple tree library code. "memcg: further decouple v1 code from v2" from Shakeel Butt. Move more cgroup v1 remnants away from the v2 memcg code. "memcg: initiate deprecation of v1 features" from Shakeel Butt. Adds various warnings telling users that memcg v1 features are deprecated. "mm: swap: mTHP swap allocator base on swap cluster order" from Chris Li. Greatly improves the success rate of the mTHP swap allocation. "mm: introduce numa_memblks" from Mike Rapoport. Moves various disparate per-arch implementations of numa_memblk code into generic code. "mm: batch free swaps for zap_pte_range()" from Barry Song. Greatly improves the performance of munmap() of swap-filled ptes. "support large folio swap-out and swap-in for shmem" from Baolin Wang. With this series we no longer split shmem large folios into simgle-page folios when swapping out shmem. "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao. Nice performance improvements and code reductions for gigantic folios. "support shmem mTHP collapse" from Baolin Wang. Adds support for khugepaged's collapsing of shmem mTHP folios. "mm: Optimize mseal checks" from Pedro Falcato. Fixes an mprotect() performance regression due to the addition of mseal(). "Increase the number of bits available in page_type" from Matthew Wilcox. Increases the number of bits available in page_type! "Simplify the page flags a little" from Matthew Wilcox. Many legacy page flags are now folio flags, so the page-based flags and their accessors/mutators can be removed. "mm: store zero pages to be swapped out in a bitmap" from Usama Arif. An optimization which permits us to avoid writing/reading zero-filled zswap pages to backing store. "Avoid MAP_FIXED gap exposure" from Liam Howlett. Fixes a race window which occurs when a MAP_FIXED operqtion is occurring during an unrelated vma tree walk. "mm: remove vma_merge()" from Lorenzo Stoakes. Major rotorooting of the vma_merge() functionality, making ot cleaner, more testable and better tested. "misc fixups for DAMON {self,kunit} tests" from SeongJae Park. Minor fixups of DAMON selftests and kunit tests. "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang. Code cleanups and folio conversions. "Shmem mTHP controls and stats improvements" from Ryan Roberts. Cleanups for shmem controls and stats. "mm: count the number of anonymous THPs per size" from Barry Song. Expose additional anon THP stats to userspace for improved tuning. "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more folio conversions and removal of now-unused page-based APIs. "replace per-quota region priorities histogram buffer with per-context one" from SeongJae Park. DAMON histogram rationalization. "Docs/damon: update GitHub repo URLs and maintainer-profile" from SeongJae Park. DAMON documentation updates. "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and improve related doc and warn" from Jason Wang: fixes usage of page allocator __GFP_NOFAIL and GFP_ATOMIC flags. "mm: split underused THPs" from Yu Zhao. Improve THP=always policy - this was overprovisioning THPs in sparsely accessed memory areas. "zram: introduce custom comp backends API" frm Sergey Senozhatsky. Add support for zram run-time compression algorithm tuning. "mm: Care about shadow stack guard gap when getting an unmapped area" from Mark Brown. Fix up the various arch_get_unmapped_area() implementations to better respect guard areas. "Improve mem_cgroup_iter()" from Kinsey Ho. Improve the reliability of mem_cgroup_iter() and various code cleanups. "mm: Support huge pfnmaps" from Peter Xu. Extends the usage of huge pfnmap support. "resource: Fix region_intersects() vs add_memory_driver_managed()" from Huang Ying. Fix a bug in region_intersects() for systems with CXL memory. "mm: hwpoison: two more poison recovery" from Kefeng Wang. Teaches a couple more code paths to correctly recover from the encountering of poisoned memry. "mm: enable large folios swap-in support" from Barry Song. Support the swapin of mTHP memory into appropriately-sized folios, rather than into single-page folios. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZu1BBwAKCRDdBJ7gKXxA jlWNAQDYlqQLun7bgsAN4sSvi27VUuWv1q70jlMXTfmjJAvQqwD/fBFVR6IOOiw7 AkDbKWP2k0hWPiNJBGwoqxdHHx09Xgo= =s0T+ -----END PGP SIGNATURE----- Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Along with the usual shower of singleton patches, notable patch series in this pull request are: - "Align kvrealloc() with krealloc()" from Danilo Krummrich. Adds consistency to the APIs and behaviour of these two core allocation functions. This also simplifies/enables Rustification. - "Some cleanups for shmem" from Baolin Wang. No functional changes - mode code reuse, better function naming, logic simplifications. - "mm: some small page fault cleanups" from Josef Bacik. No functional changes - code cleanups only. - "Various memory tiering fixes" from Zi Yan. A small fix and a little cleanup. - "mm/swap: remove boilerplate" from Yu Zhao. Code cleanups and simplifications and .text shrinkage. - "Kernel stack usage histogram" from Pasha Tatashin and Shakeel Butt. This is a feature, it adds new feilds to /proc/vmstat such as $ grep kstack /proc/vmstat kstack_1k 3 kstack_2k 188 kstack_4k 11391 kstack_8k 243 kstack_16k 0 which tells us that 11391 processes used 4k of stack while none at all used 16k. Useful for some system tuning things, but partivularly useful for "the dynamic kernel stack project". - "kmemleak: support for percpu memory leak detect" from Pavel Tikhomirov. Teaches kmemleak to detect leaksage of percpu memory. - "mm: memcg: page counters optimizations" from Roman Gushchin. "3 independent small optimizations of page counters". - "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from David Hildenbrand. Improves PTE/PMD splitlock detection, makes powerpc/8xx work correctly by design rather than by accident. - "mm: remove arch_make_page_accessible()" from David Hildenbrand. Some folio conversions which make arch_make_page_accessible() unneeded. - "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David Finkel. Cleans up and fixes our handling of the resetting of the cgroup/process peak-memory-use detector. - "Make core VMA operations internal and testable" from Lorenzo Stoakes. Rationalizaion and encapsulation of the VMA manipulation APIs. With a view to better enable testing of the VMA functions, even from a userspace-only harness. - "mm: zswap: fixes for global shrinker" from Takero Funaki. Fix issues in the zswap global shrinker, resulting in improved performance. - "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao. Fill in some missing info in /proc/zoneinfo. - "mm: replace follow_page() by folio_walk" from David Hildenbrand. Code cleanups and rationalizations (conversion to folio_walk()) resulting in the removal of follow_page(). - "improving dynamic zswap shrinker protection scheme" from Nhat Pham. Some tuning to improve zswap's dynamic shrinker. Significant reductions in swapin and improvements in performance are shown. - "mm: Fix several issues with unaccepted memory" from Kirill Shutemov. Improvements to the new unaccepted memory feature, - "mm/mprotect: Fix dax puds" from Peter Xu. Implements mprotect on DAX PUDs. This was missing, although nobody seems to have notied yet. - "Introduce a store type enum for the Maple tree" from Sidhartha Kumar. Cleanups and modest performance improvements for the maple tree library code. - "memcg: further decouple v1 code from v2" from Shakeel Butt. Move more cgroup v1 remnants away from the v2 memcg code. - "memcg: initiate deprecation of v1 features" from Shakeel Butt. Adds various warnings telling users that memcg v1 features are deprecated. - "mm: swap: mTHP swap allocator base on swap cluster order" from Chris Li. Greatly improves the success rate of the mTHP swap allocation. - "mm: introduce numa_memblks" from Mike Rapoport. Moves various disparate per-arch implementations of numa_memblk code into generic code. - "mm: batch free swaps for zap_pte_range()" from Barry Song. Greatly improves the performance of munmap() of swap-filled ptes. - "support large folio swap-out and swap-in for shmem" from Baolin Wang. With this series we no longer split shmem large folios into simgle-page folios when swapping out shmem. - "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao. Nice performance improvements and code reductions for gigantic folios. - "support shmem mTHP collapse" from Baolin Wang. Adds support for khugepaged's collapsing of shmem mTHP folios. - "mm: Optimize mseal checks" from Pedro Falcato. Fixes an mprotect() performance regression due to the addition of mseal(). - "Increase the number of bits available in page_type" from Matthew Wilcox. Increases the number of bits available in page_type! - "Simplify the page flags a little" from Matthew Wilcox. Many legacy page flags are now folio flags, so the page-based flags and their accessors/mutators can be removed. - "mm: store zero pages to be swapped out in a bitmap" from Usama Arif. An optimization which permits us to avoid writing/reading zero-filled zswap pages to backing store. - "Avoid MAP_FIXED gap exposure" from Liam Howlett. Fixes a race window which occurs when a MAP_FIXED operqtion is occurring during an unrelated vma tree walk. - "mm: remove vma_merge()" from Lorenzo Stoakes. Major rotorooting of the vma_merge() functionality, making ot cleaner, more testable and better tested. - "misc fixups for DAMON {self,kunit} tests" from SeongJae Park. Minor fixups of DAMON selftests and kunit tests. - "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang. Code cleanups and folio conversions. - "Shmem mTHP controls and stats improvements" from Ryan Roberts. Cleanups for shmem controls and stats. - "mm: count the number of anonymous THPs per size" from Barry Song. Expose additional anon THP stats to userspace for improved tuning. - "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more folio conversions and removal of now-unused page-based APIs. - "replace per-quota region priorities histogram buffer with per-context one" from SeongJae Park. DAMON histogram rationalization. - "Docs/damon: update GitHub repo URLs and maintainer-profile" from SeongJae Park. DAMON documentation updates. - "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and improve related doc and warn" from Jason Wang: fixes usage of page allocator __GFP_NOFAIL and GFP_ATOMIC flags. - "mm: split underused THPs" from Yu Zhao. Improve THP=always policy. This was overprovisioning THPs in sparsely accessed memory areas. - "zram: introduce custom comp backends API" frm Sergey Senozhatsky. Add support for zram run-time compression algorithm tuning. - "mm: Care about shadow stack guard gap when getting an unmapped area" from Mark Brown. Fix up the various arch_get_unmapped_area() implementations to better respect guard areas. - "Improve mem_cgroup_iter()" from Kinsey Ho. Improve the reliability of mem_cgroup_iter() and various code cleanups. - "mm: Support huge pfnmaps" from Peter Xu. Extends the usage of huge pfnmap support. - "resource: Fix region_intersects() vs add_memory_driver_managed()" from Huang Ying. Fix a bug in region_intersects() for systems with CXL memory. - "mm: hwpoison: two more poison recovery" from Kefeng Wang. Teaches a couple more code paths to correctly recover from the encountering of poisoned memry. - "mm: enable large folios swap-in support" from Barry Song. Support the swapin of mTHP memory into appropriately-sized folios, rather than into single-page folios" * tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (416 commits) zram: free secondary algorithms names uprobes: turn xol_area->pages[2] into xol_area->page uprobes: introduce the global struct vm_special_mapping xol_mapping Revert "uprobes: use vm_special_mapping close() functionality" mm: support large folios swap-in for sync io devices mm: add nr argument in mem_cgroup_swapin_uncharge_swap() helper to support large folios mm: fix swap_read_folio_zeromap() for large folios with partial zeromap mm/debug_vm_pgtable: Use pxdp_get() for accessing page table entries set_memory: add __must_check to generic stubs mm/vma: return the exact errno in vms_gather_munmap_vmas() memcg: cleanup with !CONFIG_MEMCG_V1 mm/show_mem.c: report alloc tags in human readable units mm: support poison recovery from copy_present_page() mm: support poison recovery from do_cow_fault() resource, kunit: add test case for region_intersects() resource: make alloc_free_mem_region() works for iomem_resource mm: z3fold: deprecate CONFIG_Z3FOLD vfio/pci: implement huge_fault support mm/arm64: support large pfn mappings mm/x86: support large pfn mappings ...	2024-09-21 07:29:05 -07:00
Linus Torvalds	056f8c437d	Lots of cleanups and bug fixes this cycle, primarily in the block ... allocation, extent management, fast commit, and journalling. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmbsGRcACgkQ8vlZVpUN gaP+pwgAop3LUpOFQ9dPRTR3+37AJI8adfabfLIDkEkoVA7lyYY/6Q8pcQ0rklq3 wE1WxrJ7MaE1GaFCwRIDIL6TP+uYRK0pPjqbFBxGakhDc+WXrTcALOWWofb7J7PL FLwP264lRRfKfpMHdK8bx6YHnEN8425PR+ZNXGVPsw+wjo72mmnq54w+ct1iOKiw dKfIrwwCGKlBsNdYHS/XsSx7MMK8e7nsKoSq0UtpJ4PqF11/asOtlYYODc4hd27U E3I3UDKuntmz+meAscDejOJqQk5FT184HIt/Y5JfetKU2zpUFj9IKqXDzMjijdaj vGn9RkTXfJdxMPm1ouF2R6KIRJollg== =V7+A -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "Lots of cleanups and bug fixes this cycle, primarily in the block allocation, extent management, fast commit, and journalling" * tag 'ext4_for_linus-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (93 commits) ext4: convert EXT4_B2C(sbi->s_stripe) users to EXT4_NUM_B2C ext4: check stripe size compatibility on remount as well ext4: fix i_data_sem unlock order in ext4_ind_migrate() ext4: remove the special buffer dirty handling in do_journal_get_write_access ext4: fix a potential assertion failure due to improperly dirtied buffer ext4: hoist ext4_block_write_begin and replace the __block_write_begin ext4: persist the new uptodate buffers in ext4_journalled_zero_new_buffers ext4: dax: keep orphan list before truncate overflow allocated blocks ext4: fix error message when rejecting the default hash ext4: save unnecessary indentation in ext4_ext_create_new_leaf() ext4: make some fast commit functions reuse extents path ext4: refactor ext4_swap_extents() to reuse extents path ext4: get rid of ppath in convert_initialized_extent() ext4: get rid of ppath in ext4_ext_handle_unwritten_extents() ext4: get rid of ppath in ext4_ext_convert_to_initialized() ext4: get rid of ppath in ext4_convert_unwritten_extents_endio() ext4: get rid of ppath in ext4_split_convert_extents() ext4: get rid of ppath in ext4_split_extent() ext4: get rid of ppath in ext4_force_split_extent_at() ext4: get rid of ppath in ext4_split_extent_at() ...	2024-09-20 19:26:45 -07:00
Linus Torvalds	84bbfe6b64	platform-drivers-x86 for v6.12-1 ... Highlights: - asus-wmi: Add support for vivobook fan profiles - dell-laptop: Add knobs to change battery charge settings - lg-laptop: Add operation region support - intel-uncore-freq: Add support for efficiency latency control - intel/ifs: Add SBAF test support - intel/pmc: Ignore all LTRs during suspend - platform/surface: Support for arm64 based Surface devices - wmi: Pass event data directly to legacy notify handlers - x86/platform/geode: switch GPIO buttons and LEDs to software properties - bunch of small cleanups, fixes, hw-id additions, etc. The following is an automated git shortlog grouped by driver: Documentation: - admin-guide: pm: Add efficiency vs. latency tradeoff to uncore documentation ISST: - Simplify isst_misc_reg() and isst_misc_unreg() MAINTAINERS: - adjust file entry in INTEL MID PLATFORM - Add Intel MID section Merge tag 'hwmon-for-v6.11-rc7' into review-hans: - Merge tag 'hwmon-for-v6.11-rc7' into review-hans Merge tag 'platform-drivers-x86-v6.11-3' into review-hans: - Merge tag 'platform-drivers-x86-v6.11-3' into review-hans acer-wmi: - Use backlight power constants asus-laptop: - Use backlight power constants asus-nb-wmi: - Use backlight power constants asus-wmi: - don't fail if platform_profile already registered - add debug print in more key places - Use backlight power constants - add support for vivobook fan profiles dell-laptop: - remove duplicate code w/ battery function - Add knobs to change battery charge settings dt-bindings: - platform: Add Surface System Aggregator Module - serial: Allow embedded-controller as child node eeepc-laptop: - Use backlight power constants eeepc-wmi: - Use backlight power constants fujitsu-laptop: - Use backlight power constants hid-asus: - use hid for brightness control on keyboard ideapad-laptop: - Make the scope_guard() clear of its scope - move ACPI helpers from header to source file - Use backlight power constants int3472: - Use str_high_low() - Use GPIO_LOOKUP() macro - make common part a separate module intel-hid: - Use string_choices API instead of ternary operator intel/pmc: - Ignore all LTRs during suspend - Remove unused param idx from pmc_for_each_mode() intel_scu_ipc: - Move intel_scu_ipc.h out of arch/x86/include/asm intel_scu_wdt: - Move intel_scu_wdt.h to x86 subfolder lenovo-ymc: - Ignore the 0x0 state lg-laptop: - Add operation region support oaktrail: - Use backlight power constants panasonic-laptop: - Add support for programmable buttons platform/mellanox: - mlxbf-pmc: fix lockdep warning platform/olpc: - Remove redundant null pointer checks in olpc_ec_setup_debugfs() platform/surface: - Add OF support platform/x86/amd: - pmf: Add quirk for TUF Gaming A14 platform/x86/amd/pmf: - Update SMU metrics table for 1AH family series - Relocate CPU ID macros to the PMF header - Add support for notifying Smart PC Solution updates platform/x86/intel-uncore-freq: - Add efficiency latency control to sysfs interface - Add support for efficiency latency control - Do not present separate package-die domain platform/x86/intel/ifs: - Fix SBAF title underline length - Add SBAF test support - Add SBAF test image loading support - Refactor MSR usage in IFS test code platform/x86/intel/pmc: - Show live substate requirements platform/x86/intel/pmt: - Use PMT callbacks platform/x86/intel/vsec: - Add PMT read callbacks platform/x86/intel/vsec.h: - Move to include/linux samsung-laptop: - Use backlight power constants serial-multi-instantiate: - Don't require both I2C and SPI thinkpad_acpi: - Fix uninitialized symbol 's' warning - Add Thinkpad Edge E531 fan support touchscreen_dmi: - add nanote-next quirk trace: - platform/x86/intel/ifs: Add SBAF trace support wmi: - Call both legacy and WMI driver notify handlers - Merge get_event_data() with wmi_get_notify_data() - Remove wmi_get_event_data() - Pass event data directly to legacy notify handlers x86-android-tablets: - Adjust Xiaomi Pad 2 bottom bezel touch buttons LED - Fix spelling in the comments x86/platform/geode: - switch GPIO buttons and LEDs to software properties -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmbq2tYUHGhkZWdvZWRl QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9xKYAgAoXZt1MjBDA1mP813i4bj8CYQHWO+ YnugVhEccucxgC6sBGzQeRLBNuG/VaBN6tyJ1pKYMpWV5gSthq1Iop+DZbno2ciM QAnSSzioHB/dhYBXuKmZatkMsKLjLjtfcexUed9DfwKapqFl3XQMb6cEYasM37hH 197K4yAFF3oqQImlACwQDxN1q3eCG6bdIbEAByZW7yH644IC5zH8/CiFjTCwUx/F aFIHQlLLzt1kjhD8AbRHhRcsGbzG2ejHsC3yrQddEJSOkInDO8baR0aDyhBTUFPE lztuekFfaJ1Xcyoc/Zf4pi3ab1Djt+Htck3CHLO/xcl0YYMlM5vcs1QlhQ== =sAk7 -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform drivers updates from Hans de Goede: - asus-wmi: Add support for vivobook fan profiles - dell-laptop: Add knobs to change battery charge settings - lg-laptop: Add operation region support - intel-uncore-freq: Add support for efficiency latency control - intel/ifs: Add SBAF test support - intel/pmc: Ignore all LTRs during suspend - platform/surface: Support for arm64 based Surface devices - wmi: Pass event data directly to legacy notify handlers - x86/platform/geode: switch GPIO buttons and LEDs to software properties - bunch of small cleanups, fixes, hw-id additions, etc. * tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits) MAINTAINERS: adjust file entry in INTEL MID PLATFORM platform/x86: x86-android-tablets: Adjust Xiaomi Pad 2 bottom bezel touch buttons LED platform/mellanox: mlxbf-pmc: fix lockdep warning platform/x86/amd: pmf: Add quirk for TUF Gaming A14 platform/x86: touchscreen_dmi: add nanote-next quirk platform/x86: asus-wmi: don't fail if platform_profile already registered platform/x86: asus-wmi: add debug print in more key places platform/x86: intel_scu_wdt: Move intel_scu_wdt.h to x86 subfolder platform/x86: intel_scu_ipc: Move intel_scu_ipc.h out of arch/x86/include/asm MAINTAINERS: Add Intel MID section platform/x86: panasonic-laptop: Add support for programmable buttons platform/olpc: Remove redundant null pointer checks in olpc_ec_setup_debugfs() platform/x86: intel/pmc: Ignore all LTRs during suspend platform/x86: wmi: Call both legacy and WMI driver notify handlers platform/x86: wmi: Merge get_event_data() with wmi_get_notify_data() platform/x86: wmi: Remove wmi_get_event_data() platform/x86: wmi: Pass event data directly to legacy notify handlers platform/x86: thinkpad_acpi: Fix uninitialized symbol 's' warning platform/x86: x86-android-tablets: Fix spelling in the comments platform/x86: ideapad-laptop: Make the scope_guard() clear of its scope ...	2024-09-19 09:16:04 +02:00
Linus Torvalds	eec91e22fe	IOMMU Updates for Linux v6.12 ... Including: - Core changes: - Allow ATS on VF when parent device is identity mapped. - Optimize unmap path on ARM io-pagetable implementation. - Use of_property_present(). - ARM-SMMU changes: - SMMUv2: - Devicetree binding updates for Qualcomm MMU-500 implementations. - Extend workarounds for broken Qualcomm hypervisor to avoid touching features that are not available (e.g. 16KiB page support, reserved context banks). - SMMUv3: - Support for NVIDIA's custom virtual command queue hardware. - Fix Stage-2 stall configuration and extend tests to cover this area. - A bunch of driver cleanups, including simplification of the master rbtree code. - Plus minor cleanups and fixes across both drivers. - Intel VT-d changes: - Retire si_domain and convert to use static identity domain. - Batched IOTLB/dev-IOTLB invalidation. - Small code refactoring and cleanups. - AMD-Vi changes: - Cleanup and refactoring of io-pagetable code. - Add parameter to limit the used io-pagesizes. - Other cleanups and fixes. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEr9jSbILcajRFYWYyK/BELZcBGuMFAmboAtoACgkQK/BELZcB GuNidQ//WOhwVQZmdS6vnU2vu//LwFE7Q7PsRYPW2QhFri1eurKo6jxMNBtgUsXu fPTSEBM7/lhagRgb29ycrbOYoavkEnUiIMX7vRsjl9tVkqd/GKNTrMuUC+QPiBYQ ASkStmEUW6Zvye4rWyUxiCJIFIA5wm74wSOOQ6X2Wg3WMo51njrj1DK/k2H5JenJ RTmIA9Ynef2py38xWDd0UE/psvKrzA5uug4IP0E0v014i36cSEVrH7hjztMfd8Sc 2dUuJ8eUUtLTo1ffTcmxoTvUBjBzJOzeSQrFfaDZDgyqayt6JoSKeX1DV/nCI8kc ftg0pe37Zr3mndgQC7wNyUO1GOmkJl+GpMFyJTG8wpnBc0tr+TDn1o6QERymcRxA kn62n4vxxjWoRSKt3di7hNM0Uuwj8/z/cIbDSTNbSov4fDuuz0xppdcA/ewKATv0 VgmpP5OyIFZXM+mR4Vem2hZQQ3wPOsJAFVWS1ROtYQFgiimrGf+w9et8rEU4pmp5 Ve4rSmka60NLdE6i1JNqx4sRrRsdJJ55knI77nHrt0TZkbMzA/JG1UT3TbbMJTtd v5dviMMOXLpcKQLgqlde8QWOEjT6VUw/fbU640iyzhrWAm8fWDBefrSv6JLhevQ4 fBajoaej89cd9DkkEJiSTiyGig8QkY3HFaqDo3u5g/sBBrMBZas= =1QvI -----END PGP SIGNATURE----- Merge tag 'iommu-updates-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux Pull iommu updates from Joerg Roedel: "Core changes: - Allow ATS on VF when parent device is identity mapped - Optimize unmap path on ARM io-pagetable implementation - Use of_property_present() ARM-SMMU changes: - SMMUv2: - Devicetree binding updates for Qualcomm MMU-500 implementations - Extend workarounds for broken Qualcomm hypervisor to avoid touching features that are not available (e.g. 16KiB page support, reserved context banks) - SMMUv3: - Support for NVIDIA's custom virtual command queue hardware - Fix Stage-2 stall configuration and extend tests to cover this area - A bunch of driver cleanups, including simplification of the master rbtree code - Minor cleanups and fixes across both drivers Intel VT-d changes: - Retire si_domain and convert to use static identity domain - Batched IOTLB/dev-IOTLB invalidation - Small code refactoring and cleanups AMD-Vi changes: - Cleanup and refactoring of io-pagetable code - Add parameter to limit the used io-pagesizes - Other cleanups and fixes" * tag 'iommu-updates-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (77 commits) dt-bindings: arm-smmu: Add compatible for QCS8300 SoC iommu/amd: Test for PAGING domains before freeing a domain iommu/amd: Fix argument order in amd_iommu_dev_flush_pasid_all() iommu/amd: Add kernel parameters to limit V1 page-sizes iommu/arm-smmu-v3: Reorganize struct arm_smmu_ctx_desc_cfg iommu/arm-smmu-v3: Add types for each level of the CD table iommu/arm-smmu-v3: Shrink the cdtab l1_desc array iommu/arm-smmu-v3: Do not use devm for the cd table allocations iommu/arm-smmu-v3: Remove strtab_base/cfg iommu/arm-smmu-v3: Reorganize struct arm_smmu_strtab_cfg iommu/arm-smmu-v3: Add types for each level of the 2 level stream table iommu/arm-smmu-v3: Add arm_smmu_strtab_l1/2_idx() iommu/arm-smmu-qcom: apply num_context_bank fixes for SDM630 / SDM660 iommu/arm-smmu-v3: Use the new rb tree helpers dt-bindings: arm-smmu: document the support on SA8255p iommu/tegra241-cmdqv: Do not allocate vcmdq until dma_set_mask_and_coherent iommu/tegra241-cmdqv: Drop static at local variable iommu/tegra241-cmdqv: Fix ioremap() error handling in probe() iommu/amd: Do not set the D bit on AMD v2 table entries iommu/amd: Correct the reported page sizes from the V1 table ...	2024-09-18 12:45:52 +02:00
Linus Torvalds	7c9026b2b0	pstore updates for v6.12-rc1 ... - ramoops: Fix .rst typo (Steven Rostedt) - pstore: replace spinlock_t by raw_spinlock_t (Wen Yang) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCZufrKwAKCRA2KwveOeQk u0PQAQDtABDUAMyV9kgAG3nU9L0En+p8s+rF+9MJLDmFEnmjkQD8C7ky6cW74/3R b56tAsSsuFMuHdx4AGGD7rAWrnVUswc= =HNdN -----END PGP SIGNATURE----- Merge tag 'pstore-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore updates from Kees Cook: - ramoops: Fix .rst typo (Steven Rostedt) - pstore: replace spinlock_t by raw_spinlock_t (Wen Yang) * tag 'pstore-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: replace spinlock_t by raw_spinlock_t pstore/ramoops: Fix typo as there is no "reserver"	2024-09-18 11:47:03 +02:00
Linus Torvalds	067610ebaa	RCU pull request for v6.12 ... This pull request contains the following branches: context_tracking.15.08.24a: Rename context tracking state related symbols and remove references to "dynticks" in various context tracking state variables and related helpers; force context_tracking_enabled_this_cpu() to be inlined to avoid leaving a noinstr section. csd.lock.15.08.24a: Enhance CSD-lock diagnostic reports; add an API to provide an indication of ongoing CSD-lock stall. nocb.09.09.24a: Update and simplify RCU nocb code to handle (de-)offloading of callbacks only for offline CPUs; fix RT throttling hrtimer being armed from offline CPU. rcutorture.14.08.24a: Remove redundant rcu_torture_ops get_gp_completed fields; add SRCU ->same_gp_state and ->get_comp_state functions; add generic test for NUM_ACTIVE_*RCU_POLL* for testing RCU and SRCU polled grace periods; add CFcommon.arch for arch-specific Kconfig options; print number of update types in rcu_torture_write_types(); add rcutree.nohz_full_patience_delay testing to the TREE07 scenario; add a stall_cpu_repeat module parameter to test repeated CPU stalls; add argument to limit number of CPUs a guest OS can use in torture.sh; rcustall.09.09.24a: Abbreviate RCU CPU stall warnings during CSD-lock stalls; Allow dump_cpu_task() to be called without disabling preemption; defer printing stall-warning backtrace when holding rcu_node lock. srcu.12.08.24a: Make SRCU gp seq wrap-around faster; add KCSAN checks for concurrent updates to ->srcu_n_exp_nodelay and ->reschedule_count which are used in heuristics governing auto-expediting of normal SRCU grace periods and grace-period-state-machine delays; mark idle SRCU-barrier callbacks to help identify stuck SRCU-barrier callback. rcu.tasks.14.08.24a: Remove RCU Tasks Rude asynchronous APIs as they are no longer used; stop testing RCU Tasks Rude asynchronous APIs; fix access to non-existent percpu regions; check processor-ID assumptions during chosen CPU calculation for callback enqueuing; update description of rtp->tasks_gp_seq grace-period sequence number; add rcu_barrier_cb_is_done() to identify whether a given rcu_barrier callback is stuck; mark idle Tasks-RCU-barrier callbacks; add *torture_stats_print() functions to print detailed diagnostics for Tasks-RCU variants; capture start time of rcu_barrier_tasks*() operation to help distinguish a hung barrier operation from a long series of barrier operations. rcu_scaling_tests.15.08.24a: refscale: Add a TINY scenario to support tests of Tiny RCU and Tiny SRCU; Optimize process_durations() operation; rcuscale: Dump stacks of stalled rcu_scale_writer() instances; dump grace-period statistics when rcu_scale_writer() stalls; mark idle RCU-barrier callbacks to identify stuck RCU-barrier callbacks; print detailed grace-period and barrier diagnostics on rcu_scale_writer() hangs for Tasks-RCU variants; warn if async module parameter is specified for RCU implementations that do not have async primitives such as RCU Tasks Rude; make all writer tasks report upon hang; tolerate repeated GFP_KERNEL failure in rcu_scale_writer(); use special allocator for rcu_scale_writer(); NULL out top-level pointers to heap memory to avoid double-free bugs on modprobe failures; maintain per-task instead of per-CPU callbacks count to avoid any issues with migration of either tasks or callbacks; constify struct ref_scale_ops. fixes.12.08.24a: Use system_unbound_wq for kfree_rcu work to avoid disturbing isolated CPUs. misc.11.08.24a: Warn on unexpected rcu_state.srs_done_tail state; Better define "atomic" for list_replace_rcu() and hlist_replace_rcu() routines; annotate struct kvfree_rcu_bulk_data with __counted_by(). -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSi2tPIQIc2VEtjarIAHS7/6Z0wpQUCZt8+8wAKCRAAHS7/6Z0w pTqoAPwPN//tlEoJx2PRs6t0q+nD1YNvnZawPaRmdzgdM8zJogD+PiSN+XhqRr80 jzyvMDU4Aa0wjUNP3XsCoaCxo7L/lQk= =bZ9z -----END PGP SIGNATURE----- Merge tag 'rcu.release.v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux Pull RCU updates from Neeraj Upadhyay: "Context tracking: - rename context tracking state related symbols and remove references to "dynticks" in various context tracking state variables and related helpers - force context_tracking_enabled_this_cpu() to be inlined to avoid leaving a noinstr section CSD lock: - enhance CSD-lock diagnostic reports - add an API to provide an indication of ongoing CSD-lock stall nocb: - update and simplify RCU nocb code to handle (de-)offloading of callbacks only for offline CPUs - fix RT throttling hrtimer being armed from offline CPU rcutorture: - remove redundant rcu_torture_ops get_gp_completed fields - add SRCU ->same_gp_state and ->get_comp_state functions - add generic test for NUM_ACTIVE_*RCU_POLL* for testing RCU and SRCU polled grace periods - add CFcommon.arch for arch-specific Kconfig options - print number of update types in rcu_torture_write_types() - add rcutree.nohz_full_patience_delay testing to the TREE07 scenario - add a stall_cpu_repeat module parameter to test repeated CPU stalls - add argument to limit number of CPUs a guest OS can use in torture.sh rcustall: - abbreviate RCU CPU stall warnings during CSD-lock stalls - Allow dump_cpu_task() to be called without disabling preemption - defer printing stall-warning backtrace when holding rcu_node lock srcu: - make SRCU gp seq wrap-around faster - add KCSAN checks for concurrent updates to ->srcu_n_exp_nodelay and ->reschedule_count which are used in heuristics governing auto-expediting of normal SRCU grace periods and grace-period-state-machine delays - mark idle SRCU-barrier callbacks to help identify stuck SRCU-barrier callback rcu tasks: - remove RCU Tasks Rude asynchronous APIs as they are no longer used - stop testing RCU Tasks Rude asynchronous APIs - fix access to non-existent percpu regions - check processor-ID assumptions during chosen CPU calculation for callback enqueuing - update description of rtp->tasks_gp_seq grace-period sequence number - add rcu_barrier_cb_is_done() to identify whether a given rcu_barrier callback is stuck - mark idle Tasks-RCU-barrier callbacks - add *torture_stats_print() functions to print detailed diagnostics for Tasks-RCU variants - capture start time of rcu_barrier_tasks*() operation to help distinguish a hung barrier operation from a long series of barrier operations refscale: - add a TINY scenario to support tests of Tiny RCU and Tiny SRCU - optimize process_durations() operation rcuscale: - dump stacks of stalled rcu_scale_writer() instances and grace-period statistics when rcu_scale_writer() stalls - mark idle RCU-barrier callbacks to identify stuck RCU-barrier callbacks - print detailed grace-period and barrier diagnostics on rcu_scale_writer() hangs for Tasks-RCU variants - warn if async module parameter is specified for RCU implementations that do not have async primitives such as RCU Tasks Rude - make all writer tasks report upon hang - tolerate repeated GFP_KERNEL failure in rcu_scale_writer() - use special allocator for rcu_scale_writer() - NULL out top-level pointers to heap memory to avoid double-free bugs on modprobe failures - maintain per-task instead of per-CPU callbacks count to avoid any issues with migration of either tasks or callbacks - constify struct ref_scale_ops Fixes: - use system_unbound_wq for kfree_rcu work to avoid disturbing isolated CPUs Misc: - warn on unexpected rcu_state.srs_done_tail state - better define "atomic" for list_replace_rcu() and hlist_replace_rcu() routines - annotate struct kvfree_rcu_bulk_data with __counted_by()" * tag 'rcu.release.v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (90 commits) rcu: Defer printing stall-warning backtrace when holding rcu_node lock rcu/nocb: Remove superfluous memory barrier after bypass enqueue rcu/nocb: Conditionally wake up rcuo if not already waiting on GP rcu/nocb: Fix RT throttling hrtimer armed from offline CPU rcu/nocb: Simplify (de-)offloading state machine context_tracking: Tag context_tracking_enabled_this_cpu() __always_inline context_tracking, rcu: Rename rcu_dyntick trace event into rcu_watching rcu: Update stray documentation references to rcu_dynticks_eqs_{enter, exit}() rcu: Rename rcu_momentary_dyntick_idle() into rcu_momentary_eqs() rcu: Rename rcu_implicit_dynticks_qs() into rcu_watching_snap_recheck() rcu: Rename dyntick_save_progress_counter() into rcu_watching_snap_save() rcu: Rename struct rcu_data .exp_dynticks_snap into .exp_watching_snap rcu: Rename struct rcu_data .dynticks_snap into .watching_snap rcu: Rename rcu_dynticks_zero_in_eqs() into rcu_watching_zero_in_eqs() rcu: Rename rcu_dynticks_in_eqs_since() into rcu_watching_snap_stopped_since() rcu: Rename rcu_dynticks_in_eqs() into rcu_watching_snap_in_eqs() rcu: Rename rcu_dynticks_eqs_online() into rcu_watching_online() context_tracking, rcu: Rename rcu_dynticks_curr_cpu_in_eqs() into rcu_is_watching_curr_cpu() context_tracking, rcu: Rename rcu_dynticks_task*() into rcu_task*() refscale: Constify struct ref_scale_ops ...	2024-09-18 07:52:24 +02:00
Linus Torvalds	85a77db95a	workqueue: Changes for v6.12 ... Nothing major: - workqueue.panic_on_stall boot param added. - alloc_workqueue_lockdep_map() added (used by DRM). - Other cleanusp and doc updates. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZuN3gQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGR1hAP0XObdExeNsVWe1JUUUX061+H+aA6aVffb9+J/t b32u3QEAsn+oNWzuvzlGlSQKQMpPk+dT2na0Q0yZNxkNEzUiEQQ= =TeDS -----END PGP SIGNATURE----- Merge tag 'wq-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue updates from Tejun Heo: "Nothing major: - workqueue.panic_on_stall boot param added - alloc_workqueue_lockdep_map() added (used by DRM) - Other cleanusp and doc updates" * tag 'wq-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: kernel/workqueue.c: fix DEFINE_PER_CPU_SHARED_ALIGNED expansion workqueue: Fix another htmldocs build warning workqueue: fix null-ptr-deref on __alloc_workqueue() error workqueue: Don't call va_start / va_end twice workqueue: Fix htmldocs build warning workqueue: Add interface for user-defined workqueue lockdep map workqueue: Change workqueue lockdep map to pointer workqueue: Split alloc_workqueue into internal function and lockdep init Documentation: kernel-parameters: add workqueue.panic_on_stall workqueue: add cmdline parameter workqueue.panic_on_stall	2024-09-18 06:59:44 +02:00
Linus Torvalds	78567e2bc7	cgroup: Changes for v6.12 ... - cpuset isolation improvements. - cpuset cgroup1 support is split into its own file behind the new config option CONFIG_CPUSET_V1. This makes it the second controller which makes cgroup1 support optional after memcg. - Handling of unavailable v1 controller handling improved during cgroup1 mount operations. - union_find applied to cpuset. It makes code simpler and more efficient. - Reduce spurious events in pids.events. - Cleanups and other misc changes. - Contains a merge of cgroup/for-6.11-fixes to receive cpuset fixes that further changes build upon. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZuNU3Q4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGdMsAP9yqPxu//LiJ3lPWhKcVVKtdwrA3AYDLE81VSJO 5VZJhAD+Ic+Ly/jZjDtjjQpZ1U3JsBpBRcVBqzeH0gD7eXaJgwk= =h/+c -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cpuset isolation improvements - cpuset cgroup1 support is split into its own file behind the new config option CONFIG_CPUSET_V1. This makes it the second controller which makes cgroup1 support optional after memcg - Handling of unavailable v1 controller handling improved during cgroup1 mount operations - union_find applied to cpuset. It makes code simpler and more efficient - Reduce spurious events in pids.events - Cleanups and other misc changes - Contains a merge of cgroup/for-6.11-fixes to receive cpuset fixes that further changes build upon * tag 'cgroup-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (34 commits) cgroup: Do not report unavailable v1 controllers in /proc/cgroups cgroup: Disallow mounting v1 hierarchies without controller implementation cgroup/cpuset: Expose cpuset filesystem with cpuset v1 only cgroup/cpuset: Move cpu.h include to cpuset-internal.h cgroup/cpuset: add sefltest for cpuset v1 cgroup/cpuset: guard cpuset-v1 code under CONFIG_CPUSETS_V1 cgroup/cpuset: rename functions shared between v1 and v2 cgroup/cpuset: move v1 interfaces to cpuset-v1.c cgroup/cpuset: move validate_change_legacy to cpuset-v1.c cgroup/cpuset: move legacy hotplug update to cpuset-v1.c cgroup/cpuset: add callback_lock helper cgroup/cpuset: move memory_spread to cpuset-v1.c cgroup/cpuset: move relax_domain_level to cpuset-v1.c cgroup/cpuset: move memory_pressure to cpuset-v1.c cgroup/cpuset: move common code to cpuset-internal.h cgroup/cpuset: introduce cpuset-v1.c selftest/cgroup: Make test_cpuset_prs.sh deal with pre-isolated CPUs cgroup/cpuset: Account for boot time isolated CPUs cgroup/cpuset: remove use_parent_ecpus of cpuset cgroup/cpuset: remove fetch_xcpus ...	2024-09-18 06:39:03 +02:00
Linus Torvalds	d58db3f3a0	Another relatively mundane cycle for docs: ... - The beginning of an EEVDF scheduler document - More Chinese translations - A rethrashing of our bisection documentation ...plus the usual array of smaller fixes, and more than the usual number of typo fixes. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmboMnkACgkQF0NaE2wM flha/Qf/e8zRinIYQJ7BmombNm39w3wUiNuXr8SWq7afqhsAJJzmOZ3oyyfssL+B a1pSjhxb15UrKf1kMKhdBxhDndXvto5UekJRBY5gsTvcBMBmtIovN+ZK5Z5jObsw gzHD9of08Ti7N4C2dSBdLPHtvIBX0rVeEK4oAH7AUaQviu1cfTaLQQA0dRYsaJeX iXsts2NkGl6ZUF7mk4nlzj8+Y1zot+mCd6B53iSimNKxwsPODrCZUobJAvxg1qVU pRCQcnpx2fTBnh4ugrcLZbautyhL9bJ8VQzFeoQgYpODDgDnZyTjN6kxv65LpxAz dXi+hx5Vk7lP3BbTp9EeGn305/qQPA== =JuBw -----END PGP SIGNATURE----- Merge tag 'docs-6.12' of git://git.lwn.net/linux Pull documentation update from Jonathan Corbet: "Another relatively mundane cycle for docs: - The beginning of an EEVDF scheduler document - More Chinese translations - A rethrashing of our bisection documentation ...plus the usual array of smaller fixes, and more than the usual number of typo fixes" * tag 'docs-6.12' of git://git.lwn.net/linux: (48 commits) Remove duplicate "and" in 'Linux NVMe docs. docs:filesystems: fix spelling and grammar mistakes docs:filesystem: fix mispelled words on autofs page docs:mm: fixed spelling and grammar mistakes on vmalloc kernel stack page Documentation: PCI: fix typo in pci.rst docs/zh_CN: add the translation of kbuild/gcc-plugins.rst docs/process: fix typos docs:mm: fix spelling mistakes in heterogeneous memory management page accel/qaic: Fix a typo docs/zh_CN: update the translation of security-bugs docs: block: Fix grammar and spelling mistakes in bfq-iosched.rst Documentation: Fix spelling mistakes Documentation/gpu: Fix typo in Documentation/gpu/komeda-kms.rst scripts: sphinx-pre-install: remove unnecessary double check for $cur_version Loongarch: KVM: Add KVM hypercalls documentation for LoongArch Documentation: Document the kernel flag bdev_allow_write_mounted docs: scheduler: completion: Update member of struct completion docs: kerneldoc-preamble.sty: Suppress extra spaces in CJK literal blocks docs: submitting-patches: Advertise b4 docs: update dev-tools/kcsan.rst url about KTSAN ...	2024-09-17 16:44:08 +02:00
Linus Torvalds	9ea925c806	Updates for timers and timekeeping: ... - Core: - Overhaul of posix-timers in preparation of removing the workaround for periodic timers which have signal delivery ignored. - Remove the historical extra jiffie in msleep() msleep() adds an extra jiffie to the timeout value to ensure minimal sleep time. The timer wheel ensures minimal sleep time since the large rewrite to a non-cascading wheel, but the extra jiffie in msleep() remained unnoticed. Remove it. - Make the timer slack handling correct for realtime tasks. The procfs interface is inconsistent and does neither reflect reality nor conforms to the man page. Show the correct 0 slack for real time tasks and enforce it at the core level instead of having inconsistent individual checks in various timer setup functions. - The usual set of updates and enhancements all over the place. - Drivers: - Allow the ACPI PM timer to be turned off during suspend - No new drivers - The usual updates and enhancements in various drivers -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmbn7jQTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYobqnD/9COlU0nwsulABI/aNIrsh6iYvnCC9v 14CcNta7Qn+157Wfw9BWOyHdNhR1/fPCXE8jJ71zTyIOeW27HV2JyTtxTwe9ZcdK ViHAaj7YcIjcVUEC3StCoRCPnvLslEw4qJA5AOQuDyMivdQn+YVa2c0baJxKaXZt xk4HZdMj4NAS0jRKnoZSwtKW/+Oz6rR4GAWrZo+Zs1/8ur3HfqnQfi8lJ1hJtLLW V7XDCVRvamVi6Ah3ocYPPp/1P6yeQDA1ge9aMddqaza5STWISXRtSnFMUmYP3rbS FaL8TyL+ilfny8pkGB2WlG6nLuSbtvogtdEh1gG1k1RmZt44kAtk8ba/KiWFPBSb zK9cjojRMBS71f9G4kmb5F4rnXoLsg1YbD1Nzhz3wq2Cs1Z90dc2QwMren0zoQ1x Fn56ueRyAiagBlnrSaKyso/2RvqJTNoSdi3RkpjYeAph0UoDCqvTvKjGAf1mWiw1 T/1lUWSVqWHnzZbM7XXzzajIN9bl6A7bbqlcAJ2O9vZIDt7273DG+bQym9Vh6Why 0LTGGERHxzKBsG7WRg+2Gmvv6S18UPKRo8tLtlA758rHlFuPTZCShWrIriwSNl1K Hxon+d4BparSnm1h9W/NHPKJA574UbWRCBjdk58IkAj8DxZZY4ORD9SMP+ggkV7G F6p9cgoDNP9KFg== =jE0N -----END PGP SIGNATURE----- Merge tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "Core: - Overhaul of posix-timers in preparation of removing the workaround for periodic timers which have signal delivery ignored. - Remove the historical extra jiffie in msleep() msleep() adds an extra jiffie to the timeout value to ensure minimal sleep time. The timer wheel ensures minimal sleep time since the large rewrite to a non-cascading wheel, but the extra jiffie in msleep() remained unnoticed. Remove it. - Make the timer slack handling correct for realtime tasks. The procfs interface is inconsistent and does neither reflect reality nor conforms to the man page. Show the correct 0 slack for real time tasks and enforce it at the core level instead of having inconsistent individual checks in various timer setup functions. - The usual set of updates and enhancements all over the place. Drivers: - Allow the ACPI PM timer to be turned off during suspend - No new drivers - The usual updates and enhancements in various drivers" * tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) ntp: Make sure RTC is synchronized when time goes backwards treewide: Fix wrong singular form of jiffies in comments cpu: Use already existing usleep_range() timers: Rename next_expiry_recalc() to be unique platform/x86:intel/pmc: Fix comment for the pmc_core_acpi_pm_timer_suspend_resume function clocksource/drivers/jcore: Use request_percpu_irq() clocksource/drivers/cadence-ttc: Add missing clk_disable_unprepare in ttc_setup_clockevent clocksource/drivers/asm9260: Add missing clk_disable_unprepare in asm9260_timer_init clocksource/drivers/qcom: Add missing iounmap() on errors in msm_dt_timer_init() clocksource/drivers/ingenic: Use devm_clk_get_enabled() helpers platform/x86:intel/pmc: Enable the ACPI PM Timer to be turned off when suspended clocksource: acpi_pm: Add external callback for suspend/resume clocksource/drivers/arm_arch_timer: Using for_each_available_child_of_node_scoped() dt-bindings: timer: rockchip: Add rk3576 compatible timers: Annotate possible non critical data race of next_expiry timers: Remove historical extra jiffie for timeout in msleep() hrtimer: Use and report correct timerslack values for realtime tasks hrtimer: Annotate hrtimer_cpu_base_.*_expiry() for sparse. timers: Add sparse annotation for timer_sync_wait_running(). signal: Replace BUG_ON()s ...	2024-09-17 07:25:37 +02:00
Linus Torvalds	a430d95c5e	lsm/stable-6.12 PR 20240911 ... -----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAmbiGGAUHHBhdWxAcGF1 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXPU8BAA1+A15pmS34I9pq7c8TmRz3rNEs/a zrW1aWJ0X/+axNS7sW3Pwtt1EKuaOhskKU8gNSieRhljC8rgXIVjZzLw6Atgcr5k upulGbU9TXyVisYN+PWv9/84ito6/nYsKb7Mg3nUVsdodtIFVnsk1fxYLPHQEBig Pl3i26U3VqH93Kz0W5vs/QR2uduPB8ZyscdTgcbrY9Vv1Y7IDZ2g9QsJVKLvbQKL qcPK1JkHa+sBPJxDqS9A40zgbLbdPQgWQzsXX3dz822w1Ga7FIHSqxMBA6HwHZ+L kV4P58wVfavhwt/cQSKMWI/yiGPMMd0B6yD+m8ojOvGfOfRCWxGMmEMqHNuZ3m7k Bfll5ZgZTY8phUUhiNf3nxO3F3MM/5bHdhPOj3RReqbAbS6uWr4/fThPDYY/zIo6 NCY3HGxx3Ae64uQ01gC2p/czC50jDsMwlbXiZbrgdBhjBm/CVk5ozb80mLVcGrLB +6XMzzSbC8IaNAH2fDmUJ2ABdwyNPgsSOTGZVzIanpxu1SU2/yk3SMxkp8fv5s36 wLeODUVcLgsjVV538Mkm6PGTE4TlXaH9yi6apMyJAGp0vPYx5c3Xxk2y5A5cur5p hcrbDiX2QgeqFbwsz36incmPmbef2NU2c8feR8XLtPJuwNIeRcMSje0pnkaFlRmb TAUJ1sDQAzZ8Fy0= =HIAO -----END PGP SIGNATURE----- Merge tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm Pull lsm updates from Paul Moore: - Move the LSM framework to static calls This transitions the vast majority of the LSM callbacks into static calls. Those callbacks which haven't been converted were left as-is due to the general ugliness of the changes required to support the static call conversion; we can revisit those callbacks at a future date. - Add the Integrity Policy Enforcement (IPE) LSM This adds a new LSM, Integrity Policy Enforcement (IPE). There is plenty of documentation about IPE in this patches, so I'll refrain from going into too much detail here, but the basic motivation behind IPE is to provide a mechanism such that administrators can restrict execution to only those binaries which come from integrity protected storage, e.g. a dm-verity protected filesystem. You will notice that IPE requires additional LSM hooks in the initramfs, dm-verity, and fs-verity code, with the associated patches carrying ACK/review tags from the associated maintainers. We couldn't find an obvious maintainer for the initramfs code, but the IPE patchset has been widely posted over several years. Both Deven Bowers and Fan Wu have contributed to IPE's development over the past several years, with Fan Wu agreeing to serve as the IPE maintainer moving forward. Once IPE is accepted into your tree, I'll start working with Fan to ensure he has the necessary accounts, keys, etc. so that he can start submitting IPE pull requests to you directly during the next merge window. - Move the lifecycle management of the LSM blobs to the LSM framework Management of the LSM blobs (the LSM state buffers attached to various kernel structs, typically via a void pointer named "security" or similar) has been mixed, some blobs were allocated/managed by individual LSMs, others were managed by the LSM framework itself. Starting with this pull we move management of all the LSM blobs, minus the XFRM blob, into the framework itself, improving consistency across LSMs, and reducing the amount of duplicated code across LSMs. Due to some additional work required to migrate the XFRM blob, it has been left as a todo item for a later date; from a practical standpoint this omission should have little impact as only SELinux provides a XFRM LSM implementation. - Fix problems with the LSM's handling of F_SETOWN The LSM hook for the fcntl(F_SETOWN) operation had a couple of problems: it was racy with itself, and it was disconnected from the associated DAC related logic in such a way that the LSM state could be updated in cases where the DAC state would not. We fix both of these problems by moving the security_file_set_fowner() hook into the same section of code where the DAC attributes are updated. Not only does this resolve the DAC/LSM synchronization issue, but as that code block is protected by a lock, it also resolve the race condition. - Fix potential problems with the security_inode_free() LSM hook Due to use of RCU to protect inodes and the placement of the LSM hook associated with freeing the inode, there is a bit of a challenge when it comes to managing any LSM state associated with an inode. The VFS folks are not open to relocating the LSM hook so we have to get creative when it comes to releasing an inode's LSM state. Traditionally we have used a single LSM callback within the hook that is triggered when the inode is "marked for death", but not actually released due to RCU. Unfortunately, this causes problems for LSMs which want to take an action when the inode's associated LSM state is actually released; so we add an additional LSM callback, inode_free_security_rcu(), that is called when the inode's LSM state is released in the RCU free callback. - Refactor two LSM hooks to better fit the LSM return value patterns The vast majority of the LSM hooks follow the "return 0 on success, negative values on failure" pattern, however, there are a small handful that have unique return value behaviors which has caused confusion in the past and makes it difficult for the BPF verifier to properly vet BPF LSM programs. This includes patches to convert two of these"special" LSM hooks to the common 0/-ERRNO pattern. - Various cleanups and improvements A handful of patches to remove redundant code, better leverage the IS_ERR_OR_NULL() helper, add missing "static" markings, and do some minor style fixups. * tag 'lsm-pr-20240911' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (40 commits) security: Update file_set_fowner documentation fs: Fix file_set_fowner LSM hook inconsistencies lsm: Use IS_ERR_OR_NULL() helper function lsm: remove LSM_COUNT and LSM_CONFIG_COUNT ipe: Remove duplicated include in ipe.c lsm: replace indirect LSM hook calls with static calls lsm: count the LSMs enabled at compile time kernel: Add helper macros for loop unrolling init/main.c: Initialize early LSMs after arch code, static keys and calls. MAINTAINERS: add IPE entry with Fan Wu as maintainer documentation: add IPE documentation ipe: kunit test for parser scripts: add boot policy generation program ipe: enable support for fs-verity as a trust provider fsverity: expose verified fsverity built-in signatures to LSMs lsm: add security_inode_setintegrity() hook ipe: add support for dm-verity as a trust provider dm-verity: expose root hash digest and signature data to LSMs block,lsm: add LSM blob and new LSM hooks for block devices ipe: add permissive toggle ...	2024-09-16 18:19:47 +02:00
Linus Torvalds	e8fc317dfc	vfs-6.12.procfs ... -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZuQEwAAKCRCRxhvAZXjc onI2AQDXa5XhIx0VpLWE9uVImVy3QuUKc/5pI1e1DKMgxLhKCgEAh15a4ETqmVaw Zp3ZSzoLD8Ez1WwWb6cWQuHFYRSjtwU= =+LKG -----END PGP SIGNATURE----- Merge tag 'vfs-6.12.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull procfs updates from Christian Brauner: "This contains the following changes for procfs: - Add config options and parameters to block forcing memory writes. This adds a Kconfig option and boot param to allow removing the FOLL_FORCE flag from /proc/<pid>/mem write calls as this can be used in various attacks. The traditional forcing behavior is kept as default because it can break GDB and some other use cases. This is the simpler version that you had requested. - Restrict overmounting of ephemeral entities. It is currently possible to mount on top of various ephemeral entities in procfs. This specifically includes magic links. To recap, magic links are links of the form /proc/<pid>/fd/<nr>. They serve as references to a target file and during path lookup they cause a jump to the target path. Such magic links disappear if the corresponding file descriptor is closed. Currently it is possible to overmount such magic links. This is mostly interesting for an attacker that wants to somehow trick a process into e.g., reopening something that it didn't intend to reopen or to hide a malicious file descriptor. But also it risks leaking mounts for long-running processes. When overmounting a magic link like above, the mount will not be detached when the file descriptor is closed. Only the target mountpoint will disappear. Which has the consequence of making it impossible to unmount that mount afterwards. So the mount will stick around until the process exits and the /proc/<pid>/ directory is cleaned up during proc_flush_pid() when the dentries are pruned and invalidated. That in turn means it's possible for a program to accidentally leak mounts and it's also possible to make a task leak mounts without it's knowledge if the attacker just keeps overmounting things under /proc/<pid>/fd/<nr>. Disallow overmounting of such ephemeral entities. - Cleanup the readdir method naming in some procfs file operations. - Replace kmalloc() and strcpy() with a simple kmemdup() call" * tag 'vfs-6.12.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: proc: fold kmalloc() + strcpy() into kmemdup() proc: block mounting on top of /proc/<pid>/fdinfo/* proc: block mounting on top of /proc/<pid>/fd/* proc: block mounting on top of /proc/<pid>/map_files/* proc: add proc_splice_unmountable() proc: proc_readfdinfo() -> proc_fdinfo_iterate() proc: proc_readfd() -> proc_fd_iterate() proc: add config & param to block forcing mem writes	2024-09-16 09:36:59 +02:00
Linus Torvalds	02824a5fd1	Power management updates for 6.12-rc1 ... - Remove LATENCY_MULTIPLIER from cpufreq (Qais Yousef). - Add support for Granite Rapids and Sierra Forest in OOB mode to the intel_pstate cpufreq driver (Srinivas Pandruvada). - Add basic support for CPU capacity scaling on x86 and make the intel_pstate driver set asymmetric CPU capacity on hybrid systems without SMT (Rafael Wysocki). - Add missing MODULE_DESCRIPTION() macros to the powerpc cpufreq driver (Jeff Johnson). - Several OF related cleanups in cpufreq drivers (Rob Herring). - Enable COMPILE_TEST for ARM drivers (Rob Herrring). - Introduce quirks for syscon failures and use socinfo to get revision for TI cpufreq driver (Dhruva Gole, Nishanth Menon). - Minor cleanups in amd-pstate driver (Anastasia Belova, Dhananjay Ugwekar). - Minor cleanups for loongson, cpufreq-dt and powernv cpufreq drivers (Danila Tikhonov, Huacai Chen, and Liu Jing). - Make amd-pstate validate return of any attempt to update EPP limits, which fixes the masking hardware problems (Mario Limonciello). - Move the calculation of the AMD boost numerator outside of amd-pstate, correcting acpi-cpufreq on systems with preferred cores (Mario Limonciello). - Harden preferred core detection in amd-pstate to avoid potential false positives (Mario Limonciello). - Add extra unit test coverage for mode state machine (Mario Limonciello). - Fix an "Uninitialized variables" issue in amd-pstste (Qianqiang Liu). - Add Granite Rapids Xeon support to intel_idle (Artem Bityutskiy). - Disable promotion to C1E on Jasper Lake and Elkhart Lake in intel_idle (Kai-Heng Feng). - Use scoped device node handling to fix missing of_node_put() and simplify walking OF children in the riscv-sbi cpuidle driver (Krzysztof Kozlowski). - Remove dead code from cpuidle_enter_state() (Dhruva Gole). - Change an error pointer to NULL to fix error handling in the intel_rapl power capping driver (Dan Carpenter). - Fix off by one in get_rpi() in the intel_rapl power capping driver (Dan Carpenter). - Add support for ArrowLake-U to the intel_rapl power capping driver (Sumeet Pawnikar). - Fix the energy-pkg event for AMD CPUs in the intel_rapl power capping driver (Dhananjay Ugwekar). - Add support for AMD family 1Ah processors to the intel_rapl power capping driver (Dhananjay Ugwekar). - Remove unused stub for saveable_highmem_page() and remove deprecated macros from power management documentation (Andy Shevchenko). - Use ysfs_emit() and sysfs_emit_at() in "show" functions in the PM sysfs interface (Xueqin Luo). - Update the maintainers information for the operating-points-v2-ti-cpu DT binding (Dhruva Gole). - Drop unnecessary of_match_ptr() from ti-opp-supply (Rob Herring). - Add missing MODULE_DESCRIPTION() macros to devfreq governors (Jeff Johnson). - Use devm_clk_get_enabled() in the exynos-bus devfreq driver (Anand Moon). - Use of_property_present() instead of of_get_property() in the imx-bus devfreq driver (Rob Herring). - Update directory handling and installation process in the pm-graph Makefile and add .gitignore to ignore sleepgraph.py artifacts to pm-graph (Amit Vadhavana, Yo-Jung Lin). - Make cpupower display residency value in idle-info (Aboorva Devarajan). - Add missing powercap_set_enabled() stub function to cpupower (John B. Wyatt IV). - Add SWIG support to cpupower (John B. Wyatt IV). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmbjKEQSHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRx8g8P/1RqL6NuCxH4eobwZigeyBS6/sLHPmKo wqHcerZsU7EH8DOlmBU0SH1Br2WBQAbaP8d1ukT5qkGBrZ+IM/A2ipZct0yAHH2D aBKwg7V3LvXo2mPuLve0knpM6W7zibPHJJlcjh8DmGQJabhWO7jr+p/0eS4JE2ek iE5FCXTxhvbcNJ9yWSt7+3HHmvj74P81As7txysLSzhWSZDcqXb0XJRgVJnWDt+x OyTAMEEAY2BuqmijHzqxxHcA1fxOBK/pa9yfPdKP7ePynLnpP7xd9A5oLbXQ4BL9 PHqpD06ZBdSMQzKkyCODypZt8PL+FcEALE4u9chV/nzVwp7TrtDneXWA7RA0GXgq mp9hm51GmdptRayePR3s4TCA6a2BUw3Ue4fgs6XF/bexNpc3nx0wtP8HEevcuy8q Z7XQkpqW942vOohfoN42JwTjfDJhYTwSH3dcIY8UghHtzwZ5YKV1M4f97kNR7V2i QLJvaGJ5yTTcaHndkpc4EKknPyLRaWPh8h/yVmMRBcAaGBWaImul3a5NI07f0wLM LTenlpEcls7WSu9n3uvFXvT7nSS2CBV0huTbg449X4T2J0T6EooYsVuHNsFMNFLy Xm3lUtdm5QjAXFf+azOCO+26XQt8wObC0ttZtCC2j1b8D+9Riuwh5QHLr99rRTzn 7Ic4U5Lkimzx =JM+K -----END PGP SIGNATURE----- Merge tag 'pm-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "By the number of new lines of code, the most visible change here is the addition of hybrid CPU capacity scaling support to the intel_pstate driver. Next are the amd-pstate driver changes related to the calculation of the AMD boost numerator and preferred core detection. As far as new hardware support is concerned, the intel_idle driver will now handle Granite Rapids Xeon processors natively, the intel_rapl power capping driver will recognize family 1Ah of AMD processors and Intel ArrowLake-U chipos, and intel_pstate will handle Granite Rapids and Sierra Forest chips in the out-of-band (OOB) mode. Apart from the above, there is a usual collection of assorted fixes and code cleanups in many places and there are tooling updates. Specifics: - Remove LATENCY_MULTIPLIER from cpufreq (Qais Yousef) - Add support for Granite Rapids and Sierra Forest in OOB mode to the intel_pstate cpufreq driver (Srinivas Pandruvada) - Add basic support for CPU capacity scaling on x86 and make the intel_pstate driver set asymmetric CPU capacity on hybrid systems without SMT (Rafael Wysocki) - Add missing MODULE_DESCRIPTION() macros to the powerpc cpufreq driver (Jeff Johnson) - Several OF related cleanups in cpufreq drivers (Rob Herring) - Enable COMPILE_TEST for ARM drivers (Rob Herrring) - Introduce quirks for syscon failures and use socinfo to get revision for TI cpufreq driver (Dhruva Gole, Nishanth Menon) - Minor cleanups in amd-pstate driver (Anastasia Belova, Dhananjay Ugwekar) - Minor cleanups for loongson, cpufreq-dt and powernv cpufreq drivers (Danila Tikhonov, Huacai Chen, and Liu Jing) - Make amd-pstate validate return of any attempt to update EPP limits, which fixes the masking hardware problems (Mario Limonciello) - Move the calculation of the AMD boost numerator outside of amd-pstate, correcting acpi-cpufreq on systems with preferred cores (Mario Limonciello) - Harden preferred core detection in amd-pstate to avoid potential false positives (Mario Limonciello) - Add extra unit test coverage for mode state machine (Mario Limonciello) - Fix an "Uninitialized variables" issue in amd-pstste (Qianqiang Liu) - Add Granite Rapids Xeon support to intel_idle (Artem Bityutskiy) - Disable promotion to C1E on Jasper Lake and Elkhart Lake in intel_idle (Kai-Heng Feng) - Use scoped device node handling to fix missing of_node_put() and simplify walking OF children in the riscv-sbi cpuidle driver (Krzysztof Kozlowski) - Remove dead code from cpuidle_enter_state() (Dhruva Gole) - Change an error pointer to NULL to fix error handling in the intel_rapl power capping driver (Dan Carpenter) - Fix off by one in get_rpi() in the intel_rapl power capping driver (Dan Carpenter) - Add support for ArrowLake-U to the intel_rapl power capping driver (Sumeet Pawnikar) - Fix the energy-pkg event for AMD CPUs in the intel_rapl power capping driver (Dhananjay Ugwekar) - Add support for AMD family 1Ah processors to the intel_rapl power capping driver (Dhananjay Ugwekar) - Remove unused stub for saveable_highmem_page() and remove deprecated macros from power management documentation (Andy Shevchenko) - Use ysfs_emit() and sysfs_emit_at() in "show" functions in the PM sysfs interface (Xueqin Luo) - Update the maintainers information for the operating-points-v2-ti-cpu DT binding (Dhruva Gole) - Drop unnecessary of_match_ptr() from ti-opp-supply (Rob Herring) - Add missing MODULE_DESCRIPTION() macros to devfreq governors (Jeff Johnson) - Use devm_clk_get_enabled() in the exynos-bus devfreq driver (Anand Moon) - Use of_property_present() instead of of_get_property() in the imx-bus devfreq driver (Rob Herring) - Update directory handling and installation process in the pm-graph Makefile and add .gitignore to ignore sleepgraph.py artifacts to pm-graph (Amit Vadhavana, Yo-Jung Lin) - Make cpupower display residency value in idle-info (Aboorva Devarajan) - Add missing powercap_set_enabled() stub function to cpupower (John B. Wyatt IV) - Add SWIG support to cpupower (John B. Wyatt IV)" * tag 'pm-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (62 commits) cpufreq/amd-pstate-ut: Fix an "Uninitialized variables" issue cpufreq/amd-pstate-ut: Add test case for mode switches cpufreq/amd-pstate: Export symbols for changing modes amd-pstate: Add missing documentation for `amd_pstate_prefcore_ranking` cpufreq: amd-pstate: Add documentation for `amd_pstate_hw_prefcore` cpufreq: amd-pstate: Optimize amd_pstate_update_limits() cpufreq: amd-pstate: Merge amd_pstate_highest_perf_set() into amd_get_boost_ratio_numerator() x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator() x86/amd: Move amd_get_highest_perf() out of amd-pstate ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn ACPI: CPPC: Drop check for non zero perf ratio x86/amd: Rename amd_get_highest_perf() to amd_get_boost_ratio_numerator() ACPI: CPPC: Adjust return code for inline functions in !CONFIG_ACPI_CPPC_LIB x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c PM: hibernate: Remove unused stub for saveable_highmem_page() pm:cpupower: Add error warning when SWIG is not installed MAINTAINERS: Add Maintainers for SWIG Python bindings pm:cpupower: Include test_raw_pylibcpupower.py pm:cpupower: Add SWIG bindings files for libcpupower pm:cpupower: Add missing powercap_set_enabled() stub function ...	2024-09-16 07:47:50 +02:00
Linus Torvalds	114143a595	arm64 updates for 6.12 ... ACPI: * Enable PMCG erratum workaround for HiSilicon HIP10 and 11 platforms. * Ensure arm64-specific IORT header is covered by MAINTAINERS. CPU Errata: * Enable workaround for hardware access/dirty issue on Ampere-1A cores. Memory management: * Define PHYSMEM_END to fix a crash in the amdgpu driver. * Avoid tripping over invalid kernel mappings on the kexec() path. * Userspace support for the Permission Overlay Extension (POE) using protection keys. Perf and PMUs: * Add support for the "fixed instruction counter" extension in the CPU PMU architecture. * Extend and fix the event encodings for Apple's M1 CPU PMU. * Allow LSM hooks to decide on SPE permissions for physical profiling. * Add support for the CMN S3 and NI-700 PMUs. Confidential Computing: * Add support for booting an arm64 kernel as a protected guest under Android's "Protected KVM" (pKVM) hypervisor. Selftests: * Fix vector length issues in the SVE/SME sigreturn tests * Fix build warning in the ptrace tests. Timers: * Add support for PR_{G,S}ET_TSC so that 'rr' can deal with non-determinism arising from the architected counter. Miscellaneous: * Rework our IPI-based CPU stopping code to try NMIs if regular IPIs don't succeed. * Minor fixes and cleanups. -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmbkVNEQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNKeIB/9YtbN7JMgsXktM94GP03r3tlFF36Y1S51S +zdDZclAVZCTCZN+PaFeAZ/+ah2EQYrY6rtDoHUSEMQdF9kH+ycuIPDTwaJ4Qkam QKXMpAgtY/4yf2rX4lhDF8rEvkhLDsu7oGDhqUZQsA33GrMBHfgA3oqpYwlVjvGq gkm7olTo9LdWAxkPpnjGrjB6Mv5Dq8dJRhW+0Q5AntI5zx3RdYGJZA9GUSzyYCCt FIYOtMmWPkQ0kKxIVxOxAOm/ubhfyCs2sjSfkaa3vtvtt+Yjye1Xd81rFciIbPgP QlK/Mes2kBZmjhkeus8guLI5Vi7tx3DQMkNqLXkHAAzOoC4oConE =6osL -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "The highlights are support for Arm's "Permission Overlay Extension" using memory protection keys, support for running as a protected guest on Android as well as perf support for a bunch of new interconnect PMUs. Summary: ACPI: - Enable PMCG erratum workaround for HiSilicon HIP10 and 11 platforms. - Ensure arm64-specific IORT header is covered by MAINTAINERS. CPU Errata: - Enable workaround for hardware access/dirty issue on Ampere-1A cores. Memory management: - Define PHYSMEM_END to fix a crash in the amdgpu driver. - Avoid tripping over invalid kernel mappings on the kexec() path. - Userspace support for the Permission Overlay Extension (POE) using protection keys. Perf and PMUs: - Add support for the "fixed instruction counter" extension in the CPU PMU architecture. - Extend and fix the event encodings for Apple's M1 CPU PMU. - Allow LSM hooks to decide on SPE permissions for physical profiling. - Add support for the CMN S3 and NI-700 PMUs. Confidential Computing: - Add support for booting an arm64 kernel as a protected guest under Android's "Protected KVM" (pKVM) hypervisor. Selftests: - Fix vector length issues in the SVE/SME sigreturn tests - Fix build warning in the ptrace tests. Timers: - Add support for PR_{G,S}ET_TSC so that 'rr' can deal with non-determinism arising from the architected counter. Miscellaneous: - Rework our IPI-based CPU stopping code to try NMIs if regular IPIs don't succeed. - Minor fixes and cleanups" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits) perf: arm-ni: Fix an NULL vs IS_ERR() bug arm64: hibernate: Fix warning for cast from restricted gfp_t arm64: esr: Define ESR_ELx_EC_* constants as UL arm64: pkeys: remove redundant WARN perf: arm_pmuv3: Use BR_RETIRED for HW branch event if enabled MAINTAINERS: List Arm interconnect PMUs as supported perf: Add driver for Arm NI-700 interconnect PMU dt-bindings/perf: Add Arm NI-700 PMU perf/arm-cmn: Improve format attr printing perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check arm64/mm: use lm_alias() with addresses passed to memblock_free() mm: arm64: document why pte is not advanced in contpte_ptep_set_access_flags() arm64: Expose the end of the linear map in PHYSMEM_END arm64: trans_pgd: mark PTEs entries as valid to avoid dead kexec() arm64/mm: Delete __init region from memblock.reserved perf/arm-cmn: Support CMN S3 dt-bindings: perf: arm-cmn: Add CMN S3 perf/arm-cmn: Refactor DTC PMU register access perf/arm-cmn: Make cycle counts less surprising perf/arm-cmn: Improve build-time assertion ...	2024-09-16 06:55:07 +02:00
Linus Torvalds	963d0d60d6	- Add CONFIG_ option for every hw CPU mitigation. The intent is to support ... configurations and scenarios where the mitigations code is irrelevant - Other small fixlets and improvements -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmbfDhUACgkQEsHwGGHe VUrF9A//UkVKmIihXXak0GPqFhu8XrWeYlmwLxWe/uIy2hZCLp9L7n4pg0Ikxqz3 9D9hYk+Jykfu/jsv0sR6LH6OAUTlJi+P0w3x3VeL1sgFPUkwFtOaN2v/t5H3SW5r l+VQpdUXPmLH6QbhvT84U6L/OQYr2cjhiYro47uwM9vO/SNao4HcbC/pdBr2dwxM KzzA9sEDg3Le391phIhEOIogA1lPNV7KMScg2VjPTqQzEJ3NQVzyYmqjPO70sN9F sAuksdF+rnPjc9K/W+qUcvlp8e9lDB8g0oPlyoOeubjXsnZU5YchriPdBbyAl0dJ bjpftXIrBj8Vtmh7Tc0Jx2tlMFXNT5FrzcqdD4sviLnhrKEJSkwAoFgIMp5A+tN8 Kl8MrlABO8I8+zGRQB7TzhwaCC4AxCqUS3UEcYd4CBf5AWqT5i12ijbtIxPtdpG4 5itngIV4HT8casudpC8i8OTjOTggorMa7Pu/bQULhnZwagH8chlBdoOlKKQVkeVG FUi+L/BljL9mASic7NRZI11tk44m9xWWkbbJOPlZaGJw9YzGrxD0YOfhbgcc9iaX SOUMVJEhJVJMBISGiBUQDB6r51ee6B8RKJ3ByxzpAbwsUR9cXyfSYfUyE5reQJy9 3luj/iorL3guYU6EGEAtvbuTLGbKqybrV6zOB/QRXHWyhtUgrUA= =GFld -----END PGP SIGNATURE----- Merge tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 hw mitigation updates from Borislav Petkov: - Add CONFIG_ option for every hw CPU mitigation. The intent is to support configurations and scenarios where the mitigations code is irrelevant - Other small fixlets and improvements * tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/bugs: Fix handling when SRSO mitigation is disabled x86/bugs: Add missing NO_SSB flag Documentation/srso: Document a method for checking safe RET operates properly x86/bugs: Add a separate config for GDS x86/bugs: Remove GDS Force Kconfig option x86/bugs: Add a separate config for SSB x86/bugs: Add a separate config for Spectre V2 x86/bugs: Add a separate config for SRBDS x86/bugs: Add a separate config for Spectre v1 x86/bugs: Add a separate config for RETBLEED x86/bugs: Add a separate config for L1TF x86/bugs: Add a separate config for MMIO Stable Data x86/bugs: Add a separate config for TAA x86/bugs: Add a separate config for MDS	2024-09-16 06:48:38 +02:00
Joerg Roedel	97162f6093	Merge branches 'fixes', 'arm/smmu', 'intel/vt-d', 'amd/amd-vi' and 'core' into next	2024-09-13 12:53:05 +02:00
Rafael J. Wysocki	415dff1c96	Merge branch 'pm-cpufreq' ... Merge cpufreq updates for 6.12-rc1: - Remove LATENCY_MULTIPLIER from cpufreq (Qais Yousef). - Add support for Granite Rapids and Sierra Forest in OOB mode to the intel_pstate cpufreq driver (Srinivas Pandruvada). - Add basic support for CPU capacity scaling on x86 and make the intel_pstate driver set asymmetric CPU capacity on hybrid systems without SMT (Rafael Wysocki). - Add missing MODULE_DESCRIPTION() macros to the powerpc cpufreq driver (Jeff Johnson). - Several OF related cleanups in cpufreq drivers (Rob Herring). - Enable COMPILE_TEST for ARM drivers (Rob Herrring). - Introduce quirks for syscon failures and use socinfo to get revision for TI cpufreq driver (Dhruva Gole, Nishanth Menon). - Minor cleanups in amd-pstate driver (Anastasia Belova, Dhananjay Ugwekar). - Minor cleanups for loongson, cpufreq-dt and powernv cpufreq drivers (Danila Tikhonov, Huacai Chen, and Liu Jing). - Make amd-pstate validate return of any attempt to update EPP limits, which fixes the masking hardware problems (Mario Limonciello). - Move the calculation of the AMD boost numerator outside of amd-pstate, correcting acpi-cpufreq on systems with preferred cores (Mario Limonciello). - Harden preferred core detection in amd-pstate to avoid potential false positives (Mario Limonciello). - Add extra unit test coverage for mode state machine (Mario Limonciello). - Fix an "Uninitialized variables" issue in amd-pstste (Qianqiang Liu). * pm-cpufreq: (35 commits) cpufreq/amd-pstate-ut: Fix an "Uninitialized variables" issue cpufreq/amd-pstate-ut: Add test case for mode switches cpufreq/amd-pstate: Export symbols for changing modes amd-pstate: Add missing documentation for `amd_pstate_prefcore_ranking` cpufreq: amd-pstate: Add documentation for `amd_pstate_hw_prefcore` cpufreq: amd-pstate: Optimize amd_pstate_update_limits() cpufreq: amd-pstate: Merge amd_pstate_highest_perf_set() into amd_get_boost_ratio_numerator() x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator() x86/amd: Move amd_get_highest_perf() out of amd-pstate ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn ACPI: CPPC: Drop check for non zero perf ratio x86/amd: Rename amd_get_highest_perf() to amd_get_boost_ratio_numerator() ACPI: CPPC: Adjust return code for inline functions in !CONFIG_ACPI_CPPC_LIB x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c cpufreq/amd-pstate: Catch failures for amd_pstate_epp_update_limit() cpufreq: ti-cpufreq: Use socinfo to get revision in AM62 family cpufreq: Fix the cacography in powernv-cpufreq.c cpufreq: ti-cpufreq: Introduce quirks to handle syscon fails appropriately cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request() cpufreq: amd-pstate: add check for cpufreq_cpu_get's return value ...	2024-09-11 18:25:54 +02:00
Rafael J. Wysocki	9bcf30348f	second round of amd-pstate changes for 6.12 (second try): ... * Move the calculation of the AMD boost numerator outside of amd-pstate, correcting acpi-cpufreq on systems with preferred cores * Harden preferred core detection to avoid potential false positives * Add extra unit test coverage for mode state machine -----BEGIN PGP SIGNATURE----- iQJOBAABCgA4FiEECwtuSU6dXvs5GA2aLRkspiR3AnYFAmbhviEaHG1hcmlvLmxp bW9uY2llbGxvQGFtZC5jb20ACgkQLRkspiR3AnYqDA//TrvmXcpk1mnVJw3Y7MG0 /n8dsLpxqVtEf+USnlGR+iRhgSQ/W/Kr7b5a+jmdCwpHChuWHt2FnNgcHLIxDnZC vmEJ02/2BCRoPKvcvV4VTh0ATu3O9nqwQiBVWBdNjDy+Dzr0pzA+SQopt1hCIsO2 mzUodhpiBqYKlMf/i6+aM1gZCGGqoRC40aGqnJsgegb61vl7zIc2ZcbTxUQlyTfv t6J73IXLx8+YtrjejBYc7mRHhMQ2hCKy92C/8cNoGocj5faSKsAA3OUDcWq8qX0U zK3GGGdW8MLHSbt3VyntstnfiLL7TnzowcjvrMudIWpjC1987GlE9BApbN9VRZ8e ARN3Y7/ltjut/1fRB97BwjI9aDpzA0122Qzy4UOcK8o+be1eIr+ihV3Z9EN/snWg 0L/oq5+rGHvvIzf1BwGhoPSvgBIu7eMIYDcRxKPlEiKsbXrL4DdJC/nXgaZ/HiGO eHx1dNy7LFrdnEwVI1frZWC6ZuZcpmOBdhnfU+leVxzB3Z++Qc266rsxKBsc5taZ PPV18pxfbbl3iL85KDIbuBUCmA0aY8WEdCKtfXpl7zlB5g0fZQLyYeUbvahK08Sk vyQAnPECbX/4v1Vx54Z70GPk0XD2+TXdg8yApnXrmRc36z/SLdprk5hPKbKhZu/r iPxFUnvd0HCtjsLrsq/qUiQ= =R4HZ -----END PGP SIGNATURE----- Merge tag 'amd-pstate-v6.12-2024-09-11' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux Merge the second round of amd-pstate changes for 6.12 from Mario Limonciello: "* Move the calculation of the AMD boost numerator outside of amd-pstate, correcting acpi-cpufreq on systems with preferred cores * Harden preferred core detection to avoid potential false positives * Add extra unit test coverage for mode state machine" * tag 'amd-pstate-v6.12-2024-09-11' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: cpufreq/amd-pstate-ut: Fix an "Uninitialized variables" issue cpufreq/amd-pstate-ut: Add test case for mode switches cpufreq/amd-pstate: Export symbols for changing modes amd-pstate: Add missing documentation for `amd_pstate_prefcore_ranking` cpufreq: amd-pstate: Add documentation for `amd_pstate_hw_prefcore` cpufreq: amd-pstate: Optimize amd_pstate_update_limits() cpufreq: amd-pstate: Merge amd_pstate_highest_perf_set() into amd_get_boost_ratio_numerator() x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator() x86/amd: Move amd_get_highest_perf() out of amd-pstate ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn ACPI: CPPC: Drop check for non zero perf ratio x86/amd: Rename amd_get_highest_perf() to amd_get_boost_ratio_numerator() ACPI: CPPC: Adjust return code for inline functions in !CONFIG_ACPI_CPPC_LIB x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c	2024-09-11 18:22:23 +02:00
Mario Limonciello	15a2b764ea	amd-pstate: Add missing documentation for amd_pstate_prefcore_ranking ... `amd_pstate_prefcore_ranking` reflects the dynamic rankings of a CPU core based on platform conditions. Explicitly include it in the documentation. Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>	2024-09-11 10:23:23 -05:00
Mario Limonciello	b96b82d1af	cpufreq: amd-pstate: Add documentation for amd_pstate_hw_prefcore ... Explain that the sysfs file represents both preferred core being enabled by the user and supported by the hardware. Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>	2024-09-11 10:23:23 -05:00
Mario Limonciello	ad4caad58d	cpufreq: amd-pstate: Merge amd_pstate_highest_perf_set() into amd_get_boost_ratio_numerator() ... The special case in amd_pstate_highest_perf_set() is the value used for calculating the boost numerator. Merge this into amd_get_boost_ratio_numerator() and then use that to calculate boost ratio. This allows dropping more special casing of the highest perf value. Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>	2024-09-11 10:23:23 -05:00
Thomas Gleixner	2f7eedca6c	Merge branch 'linus' into timers/core ... To update with the latest fixes.	2024-09-10 13:49:53 +02:00
Joerg Roedel	f0295913c4	iommu/amd: Add kernel parameters to limit V1 page-sizes ... Add two new kernel command line parameters to limit the page-sizes used for v1 page-tables: nohugepages - Limits page-sizes to 4KiB v2_pgsizes_only - Limits page-sizes to 4Kib/2Mib/1GiB; The same as the sizes used with v2 page-tables This is needed for multiple scenarios. When assigning devices to SEV-SNP guests the IOMMU page-sizes need to match the sizes in the RMP table, otherwise the device will not be able to access all shared memory. Also, some ATS devices do not work properly with arbitrary IO page-sizes as supported by AMD-Vi, so limiting the sizes used by the driver is a suitable workaround. All-in-all, these parameters are only workarounds until the IOMMU core and related APIs gather the ability to negotiate the page-sizes in a better way. Signed-off-by: Joerg Roedel <jroedel@suse.de> Reviewed-by: Vasant Hegde <vasant.hegde@amd.com> Link: https://lore.kernel.org/r/20240905072240.253313-1-joro@8bytes.org	2024-09-10 11:48:57 +02:00
Sergey Senozhatsky	e899007a5e	zram: support priority parameter in recompression ... recompress device attribute supports alg=NAME parameter so that we can specify only one particular algorithm we want to perform recompression with. However, with algo params we now can have several exactly same secondary algorithms but each with its own params tuning (e.g. priority 1 configured to use more aggressive level, and priority 2 configured to use a pre-trained dictionary). Support priority=NUM parameter so that we can correctly determine which secondary algorithm we want to use. Link: https://lkml.kernel.org/r/20240902105656.1383858-25-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:12 -07:00
Sergey Senozhatsky	97ee4842f2	Documentation/zram: add documentation for algorithm parameters ... Document brief description of compression algorithms' parameters: compression level and pre-trained dictionary. [senozhatsky@chromium.org: trivial fixup] Link: https://lkml.kernel.org/r/20240903063722.1603592-1-senozhatsky@chromium.org Link: https://lkml.kernel.org/r/20240902105656.1383858-24-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:11 -07:00
Sergey Senozhatsky	4eac932103	zram: introduce algorithm_params device attribute ... This attribute is used to setup compression algorithms' parameters, so we can tweak algorithms' characteristics. At this point only 'level' is supported (to be extended in the future). Each call sets up parameters for one particular algorithm, which should be specified either by the algorithm's priority or algo name. This is expected to be called after corresponding algorithm is selected via comp_algorithm or recomp_algorithm. echo "priority=0 level=1" > /sys/block/zram0/algorithm_params or echo "algo=zstd level=1" > /sys/block/zram0/algorithm_params Link: https://lkml.kernel.org/r/20240902105656.1383858-16-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:09 -07:00
Sergey Senozhatsky	917a59e81c	zram: introduce custom comp backends API ... Moving to custom backends implementation gives us ability to have our own minimalistic and extendable API, and algorithms tunings becomes possible. The list of compression backends is empty at this point, we will add backends in the followup patches. Link: https://lkml.kernel.org/r/20240902105656.1383858-5-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:07 -07:00
Usama Arif	81d3ff3c6f	mm: add sysfs entry to disable splitting underused THPs ... If disabled, THPs faulted in or collapsed will not be added to _deferred_list, and therefore won't be considered for splitting under memory pressure if underused. Link: https://lkml.kernel.org/r/20240830100438.3623486-7-usamaarif642@gmail.com Signed-off-by: Usama Arif <usamaarif642@gmail.com> Cc: Alexander Zhu <alexlzhu@fb.com> Cc: Barry Song <baohua@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kairui Song <ryncsn@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nico Pache <npache@redhat.com> Cc: Rik van Riel <riel@surriel.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Shuang Zhai <zhais@google.com> Cc: Shuang Zhai <szhai2@cs.rochester.edu> Cc: Yu Zhao <yuzhao@google.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:04 -07:00
Usama Arif	dafff3f4c8	mm: split underused THPs ... This is an attempt to mitigate the issue of running out of memory when THP is always enabled. During runtime whenever a THP is being faulted in (__do_huge_pmd_anonymous_page) or collapsed by khugepaged (collapse_huge_page), the THP is added to _deferred_list. Whenever memory reclaim happens in linux, the kernel runs the deferred_split shrinker which goes through the _deferred_list. If the folio was partially mapped, the shrinker attempts to split it. If the folio is not partially mapped, the shrinker checks if the THP was underused, i.e. how many of the base 4K pages of the entire THP were zero-filled. If this number goes above a certain threshold (decided by /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none), the shrinker will attempt to split that THP. Then at remap time, the pages that were zero-filled are mapped to the shared zeropage, hence saving memory. Link: https://lkml.kernel.org/r/20240830100438.3623486-6-usamaarif642@gmail.com Signed-off-by: Usama Arif <usamaarif642@gmail.com> Suggested-by: Rik van Riel <riel@surriel.com> Co-authored-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Alexander Zhu <alexlzhu@fb.com> Cc: Barry Song <baohua@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kairui Song <ryncsn@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nico Pache <npache@redhat.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Shuang Zhai <zhais@google.com> Cc: Yu Zhao <yuzhao@google.com> Cc: Shuang Zhai <szhai2@cs.rochester.edu> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:04 -07:00
SeongJae Park	23a425aab0	Docs/damon: use damonitor GitHub organization instead of awslabs ... Patch series "Docs/damon: update GitHub repo URLs and maintainer-profile". Replace GitHub URLS on DAMON documents for none-kernel parts DAMON repos with new ones[1] via the first patch. With following two patches, wordsmith maitnainer-profile for better readability, and document the Google clendsar for bi-weekly meetups, respectively. [1] https://lore.kernel.org/20240813232158.83903-1-sj@kernel.org This patch (of 3): GitHub repos for non-kernel parts of DAMON project including 'damo', 'damon-tests' and 'damoos' will be moved[1] from 'awslabs' org to 'damonitor', by 2024-09-05. Update related URLs in kernel tree. [1] https://lore.kernel.org/20240813232158.83903-1-sj@kernel.org Link: https://lkml.kernel.org/r/20240826015741.80707-1-sj@kernel.org Link: https://lkml.kernel.org/r/20240826015741.80707-2-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Alex Shi <alexs@kernel.org> Cc: Hu Haowen <2023002089@link.tyut.edu.cn> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:39:00 -07:00
Barry Song	8175ebfd30	mm: count the number of partially mapped anonymous THPs per size ... When a THP is added to the deferred_list due to partially mapped, its partial pages are unused, leading to wasted memory and potentially increasing memory reclamation pressure. Detailing the specifics of how unmapping occurs is quite difficult and not that useful, so we adopt a simple approach: each time a THP enters the deferred_list, we increment the count by 1; whenever it leaves for any reason, we decrement the count by 1. Link: https://lkml.kernel.org/r/20240824010441.21308-3-21cnbao@gmail.com Signed-off-by: Barry Song <v-songbaohua@oppo.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Chris Li <chrisl@kernel.org> Cc: Chuanhua Han <hanchuanhua@oppo.com> Cc: Kairui Song <kasong@tencent.com> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Lance Yang <ioworker0@gmail.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuai Yuan <yuanshuai@oppo.com> Cc: Usama Arif <usamaarif642@gmail.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:38:57 -07:00
Barry Song	5d65c8d758	mm: count the number of anonymous THPs per size ... Patch series "mm: count the number of anonymous THPs per size", v4. Knowing the number of transparent anon THPs in the system is crucial for performance analysis. It helps in understanding the ratio and distribution of THPs versus small folios throughout the system. Additionally, partial unmapping by userspace can lead to significant waste of THPs over time and increase memory reclamation pressure. We need this information for comprehensive system tuning. This patch (of 2): Let's track for each anonymous THP size, how many of them are currently allocated. We'll track the complete lifespan of an anon THP, starting when it becomes an anon THP ("large anon folio") (->mapping gets set), until it gets freed (->mapping gets cleared). Introduce a new "nr_anon" counter per THP size and adjust the corresponding counter in the following cases: * We allocate a new THP and call folio_add_new_anon_rmap() to map it the first time and turn it into an anon THP. * We split an anon THP into multiple smaller ones. * We migrate an anon THP, when we prepare the destination. * We free an anon THP back to the buddy. Note that AnonPages in /proc/meminfo currently tracks the total number of *mapped* anonymous *pages*, and therefore has slightly different semantics. In the future, we might also want to track "nr_anon_mapped" for each THP size, which might be helpful when comparing it to the number of allocated anon THPs (long-term pinning, stuck in swapcache, memory leaks, ...). Further note that for now, we only track anon THPs after they got their ->mapping set, for example via folio_add_new_anon_rmap(). If we would allocate some in the swapcache, they will only show up in the statistics for now after they have been mapped to user space the first time, where we call folio_add_new_anon_rmap(). [akpm@linux-foundation.org: documentation fixups, per David] Link: https://lkml.kernel.org/r/3e8add35-e26b-443b-8a04-1078f4bc78f6@redhat.com Link: https://lkml.kernel.org/r/20240824010441.21308-1-21cnbao@gmail.com Link: https://lkml.kernel.org/r/20240824010441.21308-2-21cnbao@gmail.com Signed-off-by: Barry Song <v-songbaohua@oppo.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Chris Li <chrisl@kernel.org> Cc: Chuanhua Han <hanchuanhua@oppo.com> Cc: Kairui Song <kasong@tencent.com> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Lance Yang <ioworker0@gmail.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuai Yuan <yuanshuai@oppo.com> Cc: Usama Arif <usamaarif642@gmail.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-09 16:38:57 -07:00
Anna-Maria Behnsen	bd7c8ff9fe	treewide: Fix wrong singular form of jiffies in comments ... There are several comments all over the place, which uses a wrong singular form of jiffies. Replace 'jiffie' by 'jiffy'. No functional change. Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Link: https://lore.kernel.org/all/20240904-devel-anna-maria-b4-timers-flseep-v1-3-e98760256370@linutronix.de	2024-09-08 20:47:40 +02:00
Neeraj Upadhyay	355debb83b	Merge branches 'context_tracking.15.08.24a', 'csd.lock.15.08.24a', 'nocb.09.09.24a', 'rcutorture.14.08.24a', 'rcustall.09.09.24a', 'srcu.12.08.24a', 'rcu.tasks.14.08.24a', 'rcu_scaling_tests.15.08.24a', 'fixes.12.08.24a' and 'misc.11.08.24a' into next.09.09.24a	2024-09-09 00:09:47 +05:30
Robin Murphy	4d5a7680f2	perf: Add driver for Arm NI-700 interconnect PMU ... The Arm NI-700 Network-on-Chip Interconnect has a relatively straightforward design with a hierarchy of voltage, power, and clock domains, where each clock domain then contains a number of interface units and a PMU which can monitor events thereon. As such, it begets a relatively straightforward driver to interface those PMUs with perf. Even more so than with arm-cmn, users will require detailed knowledge of the wider system topology in order to meaningfully analyse anything, since the interconnect itself cannot know what lies beyond the boundary of each inscrutably-numbered interface. Given that, for now they are also expected to refer to the NI-700 documentation for the relevant event IDs to provide as well. An identifier is implemented so we can come back and add jevents if anyone really wants to. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/9933058d0ab8138c78a61cd6852ea5d5ff48e393.1725470837.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>	2024-09-06 12:58:28 +01:00
Guilherme G. Piccoli	e04eb52bfa	Documentation: Document the kernel flag bdev_allow_write_mounted ... Commit ed5cc702d3 ("block: Add config option to not allow writing to mounted devices") added a Kconfig option along with a kernel command-line tuning to control writes to mounted block devices, as a means to deal with fuzzers like Syzkaller, that provokes kernel crashes by directly writing on block devices bypassing the filesystem (so the FS has no awareness and cannot cope with that). The patch just missed adding such kernel command-line option to the kernel documentation, so let's fix that. Cc: Bart Van Assche <bvanassche@acm.org> Cc: Darrick J. Wong <djwong@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20240828145045.309835-1-gpiccoli@igalia.com	2024-09-05 14:18:28 -06:00
Jonathan Corbet	d224338aa1	Linux 6.11-rc6 ... -----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmbUG7oeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG7LUH/26M4QJ5UGJHsehd bbHlE4or0jibFyMbUiYDOElqLITjCVH6mi3Kv3E7sfyLxSsglVRRNzLCTq/UgTf8 E1L90q4wCySElzzIhH6cltuQdAhs7pRWs5BETByvIW+g+ayN0LZxUPbvB8yl/nOU Zx8flBEuM2isuRlnx+iRccbf2PxNadSkSYg2TlmZr8mfFKCiRxjU7x355Q3UcylQ b8S2jVgq69CSDF3IBOzwHZjdq5OceDsO8he0KcfSTvSgyFMcwhntAT397YEnFXnk KKjKPNCu3KqHtTxsi4Sc0wOxVcgctDv4OPethaL8yROQ7jdBTkvNpPT1yMf7bca8 ZLpSo5Y= =TBcj -----END PGP SIGNATURE----- Merge tag 'v6.11-rc6' into docs-mw This is done primarily to get a docs build fix merged via another tree so that "make htmldocs" stops failing.	2024-09-05 14:01:38 -06:00
Hans Verkuil	056f2821b6	media: cec: extron-da-hd-4k-plus: add the Extron DA HD 4K Plus CEC driver ... Add support for the Extron DA HD 4K Plus series of 4K HDMI Distrubution Amplifiers (aka HDMI Splitters). These devices support CEC and this driver adds support for the CEC protocol for both the input and all outputs (2, 4 or 6 outputs, depending on the model). It also exports the EDID from the outputs and allows reading and setting the EDID of the input. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>	2024-09-05 20:13:41 +02:00
Hans de Goede	56d8b784c5	hwmon fixes for v6.11-rc7 ... hp-wmi-sensors: Check if WMI event data exists before accessing it ltc2991: fix register bits defines -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAmbYrGEACgkQyx8mb86f mYERyw//V+MQSPf+wmRcM7gU0+u+Ylbl98wbyaO6+YyTiq2XQJgbrk2AnNJFxqu9 tkv2Xb3xFu1EB1V6Xz5kADzaP6Wp9W+4TK+PrlN0GCa6FZZwbGZBuhIkLS1492ex Zf8oRUNNiRnIAHb+5+E0aonDbsHSWe7Ff5WVTRfKBn8rrQW8pchPx4h/Y+o54Llo BEOQTA0rN51eg0RL7e9ECFUmBLRNuZA6E1w25F15VA50O4Xx2i6lL7PwPDb7KKpa g6fy2JTtr7+hKOiJMR4KdodsOZHvW4RgZ0MvWQkOZsccHw8CLp8c4egIxPYQ41Zu Ef4imKHPDVsiSXHW6rjQro0IQWBvRu1/6R1ibbDlXTWN5dkxGaByb0tlrRo3QBQn CvoHqkQkhioaX2k1I7bBDbyz6AregHLBJ7kpLq4ClcfW4QmxJ9zPPSDekyIyQiTZ vU/OljM/Je6CIbzspcaKS8uhNdykw3FX/LWLVwUEFJawJHV8b7XD+S3aJq7zQqEl R0hIeDyWiakP2ca7gozey1RjxpFDNQhCeZUqEaTlLhHlDykvZAceEXNuoczrpKNq UaBincY64PVBmzLPpjpDVg7C7C023xoqrWKSSd9kFsl9KzbKTH0XzkVPtD9cjQC5 d34++QqhffAtJuekIbrWmtfhZsvkgQrfRv1MowNsbce0Lz7dRGE= =sSGh -----END PGP SIGNATURE----- Merge tag 'hwmon-for-v6.11-rc7' into review-hans Merge "hwmon fixes for v6.11-rc7" into review-hans to bring in commit a54da9df75 ("hwmon: (hp-wmi-sensors) Check if WMI event data exists"). This is a dependency for a set of WMI event data refactoring changes.	2024-09-05 16:57:36 +02:00
Tero Kristo	8022ae2c43	Documentation: admin-guide: pm: Add efficiency vs. latency tradeoff to uncore documentation ... Added documentation about the functionality of efficiency vs. latency tradeoff control in intel Xeon processors, and how this is configured via sysfs. Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20240828153657.1296410-2-tero.kristo@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>	2024-09-04 20:17:31 +02:00
Mike Yuan	5a53623d0f	Documentation/cgroup-v2: clarify that zswap.writeback is ignored if zswap is disabled ... As discussed in [1], zswap-related settings natually lose their effect when zswap is disabled, specifically zswap.writeback here. Be explicit about this behavior. [1] https://lore.kernel.org/linux-kernel/CAKEwX=Mhbwhh-=xxCU-RjMXS_n=RpV3Gtznb2m_3JgL+jzz++g@mail.gmail.com/ [akpm@linux-foundation.org: fix/simplify text] Link: https://lkml.kernel.org/r/20240823162506.12117-3-me@yhndnzj.com Signed-off-by: Mike Yuan <me@yhndnzj.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Koutný <mkoutny@suse.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Yosry Ahmed <yosryahmed@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-03 21:15:48 -07:00
Kaiyang Zhao	f77f0c7514	mm,memcg: provide per-cgroup counters for NUMA balancing operations ... The ability to observe the demotion and promotion decisions made by the kernel on a per-cgroup basis is important for monitoring and tuning containerized workloads on machines equipped with tiered memory. Different containers in the system may experience drastically different memory tiering actions that cannot be distinguished from the global counters alone. For example, a container running a workload that has a much hotter memory accesses will likely see more promotions and fewer demotions, potentially depriving a colocated container of top tier memory to such an extent that its performance degrades unacceptably. For another example, some containers may exhibit longer periods between data reuse, causing much more numa_hint_faults than numa_pages_migrated. In this case, tuning hot_threshold_ms may be appropriate, but the signal can easily be lost if only global counters are available. In the long term, we hope to introduce per-cgroup control of promotion and demotion actions to implement memory placement policies in tiering. This patch set adds seven counters to memory.stat in a cgroup: numa_pages_migrated, numa_pte_updates, numa_hint_faults, pgdemote_kswapd, pgdemote_khugepaged, pgdemote_direct and pgpromote_success. pgdemote_* and pgpromote_success are also available in memory.numa_stat. count_memcg_events_mm() is added to count multiple event occurrences at once, and get_mem_cgroup_from_folio() is added because we need to get a reference to the memcg of a folio before it's migrated to track numa_pages_migrated. The accounting of PGDEMOTE_* is moved to shrink_inactive_list() before being changed to per-cgroup. [kaiyang2@cs.cmu.edu: add documentation of the memcg counters in cgroup-v2.rst] Link: https://lkml.kernel.org/r/20240814235122.252309-1-kaiyang2@cs.cmu.edu Link: https://lkml.kernel.org/r/20240814174227.30639-1-kaiyang2@cs.cmu.edu Signed-off-by: Kaiyang Zhao <kaiyang2@cs.cmu.edu> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Wei Xu <weixugc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-03 21:15:36 -07:00
Mike Rapoport (Microsoft)	101d647080	docs: move numa=fake description to kernel-parameters.txt ... NUMA emulation can be now enabled on arm64 and riscv in addition to x86. Move description of numa=fake parameters from x86 documentation of admin-guide/kernel-parameters.txt Link: https://lkml.kernel.org/r/20240807064110.1003856-27-rppt@kernel.org Suggested-by: Zi Yan <ziy@nvidia.com> Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU] Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: David S. Miller <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Rob Herring (Arm) <robh@kernel.org> Cc: Samuel Holland <samuel.holland@sifive.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-03 21:15:32 -07:00
Sourabh Jain	c91c6062d6	Document/kexec: generalize crash hotplug description ... Commit 79365026f8 ("crash: add a new kexec flag for hotplug support") generalizes the crash hotplug support to allow architectures to update multiple kexec segments on CPU/Memory hotplug and not just elfcorehdr. Therefore, update the relevant kernel documentation to reflect the same. No functional change. Link: https://lkml.kernel.org/r/20240812041651.703156-1-sourabhjain@linux.ibm.com Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com> Reviewed-by: Petr Tesarik <ptesarik@suse.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: Hari Bathini <hbathini@linux.ibm.com> Cc: Petr Tesarik <petr@tesarici.cz> Cc: Sourabh Jain <sourabhjain@linux.ibm.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-01 20:43:37 -07:00
Shakeel Butt	340afb8027	memcg: initiate deprecation of pressure_level ... The pressure_level in memcg v1 provides memory pressure notifications to the user space. At the moment it provides notifications for three levels of memory pressure i.e. low, medium and critical, which are defined based on internal memory reclaim implementation details. More specifically the ratio of scanned and reclaimed pages during a memory reclaim. However this is not robust as there are workloads with mostly unreclaimable user memory or kernel memory. For v2, the users can use PSI for memory pressure status of the system or the cgroup. Let's start the deprecation process for pressure_level and add warnings to gather the info on how the current users are using this interface and how they can be used to PSI. Link: https://lkml.kernel.org/r/20240814220021.3208384-5-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Reviewed-by: T.J. Mercier <tjmercier@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Muchun Song <muchun.song@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-01 20:26:21 -07:00
Shakeel Butt	6df4ad7047	memcg: initiate deprecation of oom_control ... The oom_control provides functionality to disable memcg oom-killer, notifications on oom-kill and reading the stats regarding oom-kills. This interface was mainly introduced to provide functionality for userspace oom-killers. However it is not robust enough and only supports OOM handling in the page fault path. For v2, the users can use the combination of memory.events notifications, memory.high and PSI to provide userspace OOM-killing functionality. Actually LMKD in Android and OOMd in systemd and Meta infrastructure already use PSI in combination with other stats to implement userspace OOM-killing. Let's start the deprecation process for v1 and gather the info on how the current users are using this interface and work on providing a more robust functionality in v2. Link: https://lkml.kernel.org/r/20240814220021.3208384-4-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Reviewed-by: T.J. Mercier <tjmercier@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Muchun Song <muchun.song@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-01 20:26:21 -07:00
Shakeel Butt	569c4f62d8	memcg: initiate deprecation of v1 soft limit ... Memcg v1 provides soft limit functionality for the best effort memory sharing between multiple workloads on a system. It is usually triggered through kswapd and at the moment does not reclaim kernel memory. Memcg v2 provides more straightforward best effort (memory.low) and hard protection (memory.min) functionalities. Let's initiate the deprecation of soft limit from v1 and gather if v2 needs something more to move the existing v1 users to v2 regarding soft limit. Link: https://lkml.kernel.org/r/20240814220021.3208384-3-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev> Reviewed-by: T.J. Mercier <tjmercier@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Muchun Song <muchun.song@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2024-09-01 20:26:20 -07:00