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2024-05-19Merge tag 'mm-stable-2024-05-17-19-19' of ↵Linus Torvalds103-543/+436
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull mm updates from Andrew Morton: "The usual shower of singleton fixes and minor series all over MM, documented (hopefully adequately) in the respective changelogs. Notable series include: - Lucas Stach has provided some page-mapping cleanup/consolidation/ maintainability work in the series "mm/treewide: Remove pXd_huge() API". - In the series "Allow migrate on protnone reference with MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's MPOL_PREFERRED_MANY mode, yielding almost doubled performance in one test. - In their series "Memory allocation profiling" Kent Overstreet and Suren Baghdasaryan have contributed a means of determining (via /proc/allocinfo) whereabouts in the kernel memory is being allocated: number of calls and amount of memory. - Matthew Wilcox has provided the series "Various significant MM patches" which does a number of rather unrelated things, but in largely similar code sites. - In his series "mm: page_alloc: freelist migratetype hygiene" Johannes Weiner has fixed the page allocator's handling of migratetype requests, with resulting improvements in compaction efficiency. - In the series "make the hugetlb migration strategy consistent" Baolin Wang has fixed a hugetlb migration issue, which should improve hugetlb allocation reliability. - Liu Shixin has hit an I/O meltdown caused by readahead in a memory-tight memcg. Addressed in the series "Fix I/O high when memory almost met memcg limit". - In the series "mm/filemap: optimize folio adding and splitting" Kairui Song has optimized pagecache insertion, yielding ~10% performance improvement in one test. - Baoquan He has cleaned up and consolidated the early zone initialization code in the series "mm/mm_init.c: refactor free_area_init_core()". - Baoquan has also redone some MM initializatio code in the series "mm/init: minor clean up and improvement". - MM helper cleanups from Christoph Hellwig in his series "remove follow_pfn". - More cleanups from Matthew Wilcox in the series "Various page->flags cleanups". - Vlastimil Babka has contributed maintainability improvements in the series "memcg_kmem hooks refactoring". - More folio conversions and cleanups in Matthew Wilcox's series: "Convert huge_zero_page to huge_zero_folio" "khugepaged folio conversions" "Remove page_idle and page_young wrappers" "Use folio APIs in procfs" "Clean up __folio_put()" "Some cleanups for memory-failure" "Remove page_mapping()" "More folio compat code removal" - David Hildenbrand chipped in with "fs/proc/task_mmu: convert hugetlb functions to work on folis". - Code consolidation and cleanup work related to GUP's handling of hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2". - Rick Edgecombe has developed some fixes to stack guard gaps in the series "Cover a guard gap corner case". - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the series "mm/ksm: fix ksm exec support for prctl". - Baolin Wang has implemented NUMA balancing for multi-size THPs. This is a simple first-cut implementation for now. The series is "support multi-size THP numa balancing". - Cleanups to vma handling helper functions from Matthew Wilcox in the series "Unify vma_address and vma_pgoff_address". - Some selftests maintenance work from Dev Jain in the series "selftests/mm: mremap_test: Optimizations and style fixes". - Improvements to the swapping of multi-size THPs from Ryan Roberts in the series "Swap-out mTHP without splitting". - Kefeng Wang has significantly optimized the handling of arm64's permission page faults in the series "arch/mm/fault: accelerate pagefault when badaccess" "mm: remove arch's private VM_FAULT_BADMAP/BADACCESS" - GUP cleanups from David Hildenbrand in "mm/gup: consistently call it GUP-fast". - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault path to use struct vm_fault". - selftests build fixes from John Hubbard in the series "Fix selftests/mm build without requiring "make headers"". - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the series "Improved Memory Tier Creation for CPUless NUMA Nodes". Fixes the initialization code so that migration between different memory types works as intended. - David Hildenbrand has improved follow_pte() and fixed an errant driver in the series "mm: follow_pte() improvements and acrn follow_pte() fixes". - David also did some cleanup work on large folio mapcounts in his series "mm: mapcount for large folios + page_mapcount() cleanups". - Folio conversions in KSM in Alex Shi's series "transfer page to folio in KSM". - Barry Song has added some sysfs stats for monitoring multi-size THP's in the series "mm: add per-order mTHP alloc and swpout counters". - Some zswap cleanups from Yosry Ahmed in the series "zswap same-filled and limit checking cleanups". - Matthew Wilcox has been looking at buffer_head code and found the documentation to be lacking. The series is "Improve buffer head documentation". - Multi-size THPs get more work, this time from Lance Yang. His series "mm/madvise: enhance lazyfreeing with mTHP in madvise_free" optimizes the freeing of these things. - Kemeng Shi has added more userspace-visible writeback instrumentation in the series "Improve visibility of writeback". - Kemeng Shi then sent some maintenance work on top in the series "Fix and cleanups to page-writeback". - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in the series "Improve anon_vma scalability for anon VMAs". Intel's test bot reported an improbable 3x improvement in one test. - SeongJae Park adds some DAMON feature work in the series "mm/damon: add a DAMOS filter type for page granularity access recheck" "selftests/damon: add DAMOS quota goal test" - Also some maintenance work in the series "mm/damon/paddr: simplify page level access re-check for pageout" "mm/damon: misc fixes and improvements" - David Hildenbrand has disabled some known-to-fail selftests ni the series "selftests: mm: cow: flag vmsplice() hugetlb tests as XFAIL". - memcg metadata storage optimizations from Shakeel Butt in "memcg: reduce memory consumption by memcg stats". - DAX fixes and maintenance work from Vishal Verma in the series "dax/bus.c: Fixups for dax-bus locking"" * tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (426 commits) memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_wp mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_fault selftests: cgroup: add tests to verify the zswap writeback path mm: memcg: make alloc_mem_cgroup_per_node_info() return bool mm/damon/core: fix return value from damos_wmark_metric_value mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED selftests: cgroup: remove redundant enabling of memory controller Docs/mm/damon/maintainer-profile: allow posting patches based on damon/next tree Docs/mm/damon/maintainer-profile: change the maintainer's timezone from PST to PT Docs/mm/damon/design: use a list for supported filters Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file selftests/damon: classify tests for functionalities and regressions selftests/damon/_damon_sysfs: use 'is' instead of '==' for 'None' selftests/damon/_damon_sysfs: find sysfs mount point from /proc/mounts selftests/damon/_damon_sysfs: check errors from nr_schemes file reads mm/damon/core: initialize ->esz_bp from damos_quota_init_priv() selftests/damon: add a test for DAMOS quota goal ...
2024-05-19LoongArch: Update Loongson-3 default config fileHuacai Chen1-0/+24
1, Enable PSI tracking. 2, Enable IKCONFIG/IKHEADERS. 3, Enable Generic PHY driver. 4, Enable Motorcomm PHY driver. 5, Enable ORC stack unwinder. 6, Enable some squashfs options. 7, Enable some netfilter options. Signed-off-by: Huacai Chen <[email protected]>
2024-05-18Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds7-22/+206
Pull rdma updates from Jason Gunthorpe: "Aside from the usual things this has an arch update for __iowrite64_copy() used by the RDMA drivers. This API was intended to generate large 64 byte MemWr TLPs on PCI. These days most processors had done this by just repeating writel() in a loop. S390 and some new ARM64 designs require a special helper to get this to generate. - Small improvements and fixes for erdma, efa, hfi1, bnxt_re - Fix a UAF crash after module unload on leaking restrack entry - Continue adding full RDMA support in mana with support for EQs, GID's and CQs - Improvements to the mkey cache in mlx5 - DSCP traffic class support in hns and several bug fixes - Cap the maximum number of MADs in the receive queue to avoid OOM - Another batch of rxe bug fixes from large scale testing - __iowrite64_copy() optimizations for write combining MMIO memory - Remove NULL checks before dev_put/hold() - EFA support for receive with immediate - Fix a recent memleaking regression in a cma error path" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (70 commits) RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw RDMA/IPoIB: Fix format truncation compilation errors bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq RDMA/efa: Support QP with unsolicited write w/ imm. receive IB/hfi1: Remove generic .ndo_get_stats64 IB/hfi1: Do not use custom stat allocator RDMA/hfi1: Use RMW accessors for changing LNKCTL2 RDMA/mana_ib: implement uapi for creation of rnic cq RDMA/mana_ib: boundary check before installing cq callbacks RDMA/mana_ib: introduce a helper to remove cq callbacks RDMA/mana_ib: create and destroy RNIC cqs RDMA/mana_ib: create EQs for RNIC CQs RDMA/core: Remove NULL check before dev_{put, hold} RDMA/ipoib: Remove NULL check before dev_{put, hold} RDMA/mlx5: Remove NULL check before dev_{put, hold} RDMA/mlx5: Track DCT, DCI and REG_UMR QPs as diver_detail resources. RDMA/core: Add an option to display driver-specific QPs in the rdmatool RDMA/efa: Add shutdown notifier RDMA/mana_ib: Fix missing ret value IB/mlx5: Use __iowrite64_copy() for write combining stores ...
2024-05-18Merge tag 'kbuild-v6.10' of ↵Linus Torvalds75-286/+77
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Avoid 'constexpr', which is a keyword in C23 - Allow 'dtbs_check' and 'dt_compatible_check' run independently of 'dt_binding_check' - Fix weak references to avoid GOT entries in position-independent code generation - Convert the last use of 'optional' property in arch/sh/Kconfig - Remove support for the 'optional' property in Kconfig - Remove support for Clang's ThinLTO caching, which does not work with the .incbin directive - Change the semantics of $(src) so it always points to the source directory, which fixes Makefile inconsistencies between upstream and downstream - Fix 'make tar-pkg' for RISC-V to produce a consistent package - Provide reasonable default coverage for objtool, sanitizers, and profilers - Remove redundant OBJECT_FILES_NON_STANDARD, KASAN_SANITIZE, etc. - Remove the last use of tristate choice in drivers/rapidio/Kconfig - Various cleanups and fixes in Kconfig * tag 'kbuild-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (46 commits) kconfig: use sym_get_choice_menu() in sym_check_prop() rapidio: remove choice for enumeration kconfig: lxdialog: remove initialization with A_NORMAL kconfig: m/nconf: merge two item_add_str() calls kconfig: m/nconf: remove dead code to display value of bool choice kconfig: m/nconf: remove dead code to display children of choice members kconfig: gconf: show checkbox for choice correctly kbuild: use GCOV_PROFILE and KCSAN_SANITIZE in scripts/Makefile.modfinal Makefile: remove redundant tool coverage variables kbuild: provide reasonable defaults for tool coverage modules: Drop the .export_symbol section from the final modules kconfig: use menu_list_for_each_sym() in sym_check_choice_deps() kconfig: use sym_get_choice_menu() in conf_write_defconfig() kconfig: add sym_get_choice_menu() helper kconfig: turn defaults and additional prompt for choice members into error kconfig: turn missing prompt for choice members into error kconfig: turn conf_choice() into void function kconfig: use linked list in sym_set_changed() kconfig: gconf: use MENU_CHANGED instead of SYMBOL_CHANGED kconfig: gconf: remove debug code ...
2024-05-18Merge tag 'iommu-updates-v6.10' of ↵Linus Torvalds8-35/+16
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates from Joerg Roedel: "Core: - IOMMU memory usage observability - This will make the memory used for IO page tables explicitly visible. - Simplify arch_setup_dma_ops() Intel VT-d: - Consolidate domain cache invalidation - Remove private data from page fault message - Allocate DMAR fault interrupts locally - Cleanup and refactoring ARM-SMMUv2: - Support for fault debugging hardware on Qualcomm implementations - Re-land support for the ->domain_alloc_paging() callback ARM-SMMUv3: - Improve handling of MSI allocation failure - Drop support for the "disable_bypass" cmdline option - Major rework of the CD creation code, following on directly from the STE rework merged last time around. - Add unit tests for the new STE/CD manipulation logic AMD-Vi: - Final part of SVA changes with generic IO page fault handling Renesas IPMMU: - Add support for R8A779H0 hardware ... and a couple smaller fixes and updates across the sub-tree" * tag 'iommu-updates-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (80 commits) iommu/arm-smmu-v3: Make the kunit into a module arm64: Properly clean up iommu-dma remnants iommu/amd: Enable Guest Translation after reading IOMMU feature register iommu/vt-d: Decouple igfx_off from graphic identity mapping iommu/amd: Fix compilation error iommu/arm-smmu-v3: Add unit tests for arm_smmu_write_entry iommu/arm-smmu-v3: Build the whole CD in arm_smmu_make_s1_cd() iommu/arm-smmu-v3: Move the CD generation for SVA into a function iommu/arm-smmu-v3: Allocate the CD table entry in advance iommu/arm-smmu-v3: Make arm_smmu_alloc_cd_ptr() iommu/arm-smmu-v3: Consolidate clearing a CD table entry iommu/arm-smmu-v3: Move the CD generation for S1 domains into a function iommu/arm-smmu-v3: Make CD programming use arm_smmu_write_entry() iommu/arm-smmu-v3: Add an ops indirection to the STE code iommu/arm-smmu-qcom: Don't build debug features as a kernel module iommu/amd: Add SVA domain support iommu: Add ops->domain_alloc_sva() iommu/amd: Initial SVA support for AMD IOMMU iommu/amd: Add support for enable/disable IOPF iommu/amd: Add IO page fault notifier handler ...
2024-05-18x86/percpu: Fix operand constraint modifier in __raw_cpu_write()Uros Bizjak1-1/+1
__raw_cpu_write() with !USE_X86_SEG_SUPPORT config uses read/write operand constraint modifier "+" for its memory location. This signals the compiler that the location is both read and written by the asm. This is not true, because MOV insn only writes to the output. Correct the modifier to "=" to inform the compiler that the memory location is only written to. This also prevents the compiler from value tracking the undefined value from the uninitialized memory. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-18x86/percpu: Introduce the __raw_cpu_read_const() macroUros Bizjak1-10/+9
Introduce the __raw_cpu_read_const() macro to further reduce ifdeffery and differences between configs w/ and w/o USE_X86_SEG_SUPPORT. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-18x86/percpu: Unify percpu read-write accessorsUros Bizjak1-47/+25
Redefine percpu_from_op() and percpu_to_op() as __raw_cpu_read() and __raw_cpu_write(). Unify __raw_cpu_{read,write}() macros between configs w/ and w/o USE_X86_SEG_SUPPORT in order to unify {raw,this}_cpu{read_write}_N() accessors between configs. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-18x86/percpu: Move some percpu macros around for readabilityUros Bizjak1-29/+34
Move some percpu macros around to make a follow-up patch more readable. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-18x86/percpu: Introduce the pcpu_binary_op() macroUros Bizjak1-17/+30
Introduce the pcpu_binary_op() macro, a copy of the percpu_to_op() macro. Update percpu binary operators to use the new macro, since percpu_to_op() will be re-purposed as a raw percpu write accessor in a follow-up patch. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-18perf/x86/amd: Use try_cmpxchg() in events/amd/{un,}core.cUros Bizjak2-3/+9
Replace this pattern in events/amd/{un,}core.c: cmpxchg(*ptr, old, new) == old ... with the simpler and faster: try_cmpxchg(*ptr, &old, new) The x86 CMPXCHG instruction returns success in the ZF flag, so this change saves a compare after the CMPXCHG. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-17Merge tag 'probes-v6.10' of ↵Linus Torvalds7-0/+21
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes updates from Masami Hiramatsu: - tracing/probes: Add new pseudo-types %pd and %pD support for dumping dentry name from 'struct dentry *' and file name from 'struct file *' - uprobes performance optimizations: - Speed up the BPF uprobe event by delaying the fetching of the uprobe event arguments that are not used in BPF - Avoid locking by speculatively checking whether uprobe event is valid - Reduce lock contention by using read/write_lock instead of spinlock for uprobe list operation. This improved BPF uprobe benchmark result 43% on average - rethook: Remove non-fatal warning messages when tracing stack from BPF and skip rcu_is_watching() validation in rethook if possible - objpool: Optimize objpool (which is used by kretprobes and fprobe as rethook backend storage) by inlining functions and avoid caching nr_cpu_ids because it is a const value - fprobe: Add entry/exit callbacks types (code cleanup) - kprobes: Check ftrace was killed in kprobes if it uses ftrace * tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobe/ftrace: bail out if ftrace was killed selftests/ftrace: Fix required features for VFS type test case objpool: cache nr_possible_cpus() and avoid caching nr_cpu_ids objpool: enable inlining objpool_push() and objpool_pop() operations rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get() ftrace: make extra rcu_is_watching() validation check optional uprobes: reduce contention on uprobes_tree access rethook: Remove warning messages printed for finding return address of a frame. fprobe: Add entry/exit callbacks types selftests/ftrace: add fprobe test cases for VFS type "%pd" and "%pD" selftests/ftrace: add kprobe test cases for VFS type "%pd" and "%pD" Documentation: tracing: add new type '%pd' and '%pD' for kprobe tracing/probes: support '%pD' type for print struct file's name tracing/probes: support '%pd' type for print struct dentry's name uprobes: add speculative lockless system-wide uprobe filter check uprobes: prepare uprobe args buffer lazily uprobes: encapsulate preparation of uprobe args buffer
2024-05-17Merge tag 'parisc-for-6.10-1' of ↵Linus Torvalds4-18/+11
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: - define sigset_t in parisc uapi header to fix build of util-linux - define HAVE_ARCH_HUGETLB_UNMAPPED_AREA to avoid compiler warning - drop unused 'exc_reg' struct in math-emu code * tag 'parisc-for-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Define HAVE_ARCH_HUGETLB_UNMAPPED_AREA parisc/math-emu: Remove unused struct 'exc_reg' parisc: Define sigset_t in parisc uapi header
2024-05-17Merge tag 'powerpc-6.10-1' of ↵Linus Torvalds138-1028/+2129
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT. - Allow per-process DEXCR (Dynamic Execution Control Register) settings via prctl, notably NPHIE which controls hashst/hashchk for ROP protection. - Install powerpc selftests in sub-directories. Note this changes the way run_kselftest.sh needs to be invoked for powerpc selftests. - Change fadump (Firmware Assisted Dump) to better handle memory add/remove. - Add support for passing additional parameters to the fadump kernel. - Add support for updating the kdump image on CPU/memory add/remove events. - Other small features, cleanups and fixes. Thanks to Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe Jaillet, Christophe Leroy, Colin Ian King, Cédric Le Goater, Dr. David Alan Gilbert, Erhard Furtner, Frank Li, GUO Zihua, Ganesh Goudar, Geoff Levand, Ghanshyam Agrawal, Greg Kurz, Hari Bathini, Joel Stanley, Justin Stitt, Kunwu Chan, Li Yang, Lidong Zhong, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Matthias Schiffer, Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Miehlbradt, Ran Wang, Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta, Shrikanth Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav Jain, Xiaowei Bao, Yang Li, and Zhao Chenhui. * tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (85 commits) powerpc/fadump: Fix section mismatch warning powerpc/85xx: fix compile error without CONFIG_CRASH_DUMP powerpc/fadump: update documentation about bootargs_append powerpc/fadump: pass additional parameters when fadump is active powerpc/fadump: setup additional parameters for dump capture kernel powerpc/pseries/fadump: add support for multiple boot memory regions selftests/powerpc/dexcr: Fix spelling mistake "predicition" -> "prediction" KVM: PPC: Book3S HV nestedv2: Fix an error handling path in gs_msg_ops_kvmhv_nestedv2_config_fill_info() KVM: PPC: Fix documentation for ppc mmu caps KVM: PPC: code cleanup for kvmppc_book3s_irqprio_deliver KVM: PPC: Book3S HV nestedv2: Cancel pending DEC exception powerpc/xmon: Check cpu id in commands "c#", "dp#" and "dx#" powerpc/code-patching: Use dedicated memory routines for patching powerpc/code-patching: Test patch_instructions() during boot powerpc64/kasan: Pass virtual addresses to kasan_init_phys_region() powerpc: rename SPRN_HID2 define to SPRN_HID2_750FX powerpc: Fix typos powerpc/eeh: Fix spelling of the word "auxillary" and update comment macintosh/ams: Fix unused variable warning powerpc/Makefile: Remove bits related to the previous use of -mcmodel=large ...
2024-05-17Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linuxLinus Torvalds63-987/+2558
Pull ARM updates from Russell King: - Updates to AMBA bus subsystem to drop .owner struct device_driver initialisations, moving that to code instead. - Add LPAE privileged-access-never support - Add support for Clang CFI - clkdev: report over-sized device or connection strings * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: (36 commits) ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y clkdev: report over-sized strings when creating clkdev entries ARM: 9393/1: mm: Use conditionals for CFI branches ARM: 9392/2: Support CLANG CFI ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints ARM: 9390/2: lib: Annotate loop delay instructions for CFI ARM: 9389/2: mm: Define prototypes for all per-processor calls ARM: 9388/2: mm: Type-annotate all per-processor assembly routines ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C ARM: 9386/2: mm: Use symbol alias for cache functions ARM: 9385/2: mm: Type-annotate all cache assembly routines ARM: 9384/2: mm: Make tlbflush routines CFI safe ARM: 9382/1: ftrace: Define ftrace_stub_graph ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement ARM: 9357/2: Reduce the number of #ifdef CONFIG_CPU_SW_DOMAIN_PAN ARM: 9356/2: Move asm statements accessing TTBCR into C functions ARM: 9355/2: Add TTBCR_* definitions to pgtable-3level-hwdef.h ARM: 9379/1: coresight: tpda: drop owner assignment ARM: 9378/1: coresight: etm4x: drop owner assignment ARM: 9377/1: hwrng: nomadik: drop owner assignment ...
2024-05-17Revert "arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD"Will Deacon2-19/+0
This reverts commit 2632e25217696712681dd1f3ecc0d71624ea3b23. Johannes (and others) report data corruption with dm-crypt on Apple M1 which has been bisected to this change. Revert the offending commit while we figure out what's going on. Cc: [email protected] Reported-by: Johannes Nixdorf <[email protected]> Link: https://lore.kernel.org/all/[email protected]/ Signed-off-by: Will Deacon <[email protected]>
2024-05-17xen/x86: add extra pages to unpopulated-alloc if availableRoger Pau Monne1-0/+33
Commit 262fc47ac174 ('xen/balloon: don't use PV mode extra memory for zone device allocations') removed the addition of the extra memory ranges to the unpopulated range allocator, using those only for the balloon driver. This forces the unpopulated allocator to attach hotplug ranges even when spare memory (as part of the extra memory ranges) is available. Furthermore, on PVH domains it defeats the purpose of commit 38620fc4e893 ('x86/xen: attempt to inflate the memory balloon on PVH'), as extra memory ranges would only be used to map foreign memory if the kernel is built without XEN_UNPOPULATED_ALLOC support. Fix this by adding a helpers that adds the extra memory ranges to the list of unpopulated pages, and zeroes the ranges so they are not also consumed by the balloon driver. This should have been part of 38620fc4e893, hence the fixes tag. Note the current logic relies on unpopulated_init() (and hence arch_xen_unpopulated_init()) always being called ahead of balloon_init(), so that the extra memory regions are consumed by arch_xen_unpopulated_init(). Fixes: 38620fc4e893 ('x86/xen: attempt to inflate the memory balloon on PVH') Signed-off-by: Roger Pau Monné <[email protected]> Reviewed-by: Juergen Gross <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Juergen Gross <[email protected]>
2024-05-17locking/x86/xen: Use try_cmpxchg() in xen_alloc_p2m_entry()Uros Bizjak1-6/+5
Use try_cmpxchg() instead of cmpxchg(*ptr, old, new) == old. The x86 CMPXCHG instruction returns success in the ZF flag, so this change saves a compare after CMPXCHG. Also, try_cmpxchg() implicitly assigns old *ptr value to "old" when CMPXCHG fails. There is no need to explicitly assign old *ptr value to the temporary, which can simplify the surrounding source code. No functional change intended. Signed-off-by: Uros Bizjak <[email protected]> Reviewed-by: Juergen Gross <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Boris Ostrovsky <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dave Hansen <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Juergen Gross <[email protected]>
2024-05-17x86/alternatives: Use the correct length when optimizing NOPsBorislav Petkov (AMD)1-1/+1
Commit in Fixes moved the optimize_nops() call inside apply_relocation() and made it a second optimization pass after the relocations have been done. Since optimize_nops() works only on NOPs, that is fine and it'll simply jump over instructions which are not NOPs. However, it made that call with repl_len as the buffer length to optimize. However, it can happen that there are alternatives calls like this one: alternative("mfence; lfence", "", ALT_NOT(X86_FEATURE_APIC_MSRS_FENCE)); where the replacement length is 0. And using repl_len is wrong because apply_alternatives() expands the buffer size to the length of the source insn that is being patched, by padding it with one-byte NOPs: for (; insn_buff_sz < a->instrlen; insn_buff_sz++) insn_buff[insn_buff_sz] = 0x90; Long story short: pass the length of the original instruction(s) as the length of the temporary buffer which to optimize. Result: SMP alternatives: feat: 11*32+27, old: (lapic_next_deadline+0x9/0x50 (ffffffff81061829) len: 6), repl: (ffffffff89b1cc60, len: 0) flags: 0x1 SMP alternatives: ffffffff81061829: old_insn: 0f ae f0 0f ae e8 SMP alternatives: ffffffff81061829: final_insn: 90 90 90 90 90 90 => SMP alternatives: feat: 11*32+27, old: (lapic_next_deadline+0x9/0x50 (ffffffff81061839) len: 6), repl: (ffffffff89b1cc60, len: 0) flags: 0x1 SMP alternatives: ffffffff81061839: [0:6) optimized NOPs: 66 0f 1f 44 00 00 SMP alternatives: ffffffff81061839: old_insn: 0f ae f0 0f ae e8 SMP alternatives: ffffffff81061839: final_insn: 66 0f 1f 44 00 00 Fixes: da8f9cf7e721 ("x86/alternatives: Get rid of __optimize_nops()") Signed-off-by: Borislav Petkov (AMD) <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-17x86/boot: Address clang -Wimplicit-fallthrough in vsprintf()Nathan Chancellor1-0/+2
After enabling -Wimplicit-fallthrough for the x86 boot code, clang warns: arch/x86/boot/printf.c:257:3: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] 257 | case 'u': | ^ Clang is a little more pedantic than GCC, which does not warn when falling through to a case that is just break or return. Clang's version is more in line with the kernel's own stance in deprecated.rst, which states that all switch/case blocks must end in either break, fallthrough, continue, goto, or return. Add the missing break to silence the warning. Fixes: dd0716c2b877 ("x86/boot: Add a fallthrough annotation") Reported-by: kernel test robot <[email protected]> Signed-off-by: Nathan Chancellor <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Acked-by: Justin Stitt <[email protected]> Link: https://lore.kernel.org/r/20240516-x86-boot-fix-clang-implicit-fallthrough-v1-1-04dc320ca07c@kernel.org Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
2024-05-16Merge branch 'pci/misc'Bjorn Helgaas1-3/+0
- Constify pcibus_class (Heiner Kallweit) - Annotate pci_cache_line_size variables as __ro_after_init (Heiner Kallweit) - Clean up formatting of PCI accessor macros (Ilpo Järvinen) - Remove some OLPC dead code (Kunwu Chan) - Make pcie_bandwidth_capable() static (Ilpo Järvinen) * pci/misc: PCI: Make pcie_bandwidth_capable() static x86/pci: Remove OLPC dead code PCI: Clean up accessor macro formatting PCI/ERR: Cleanup misleading indentation inside if conditions PCI: Annotate pci_cache_line_size variables as __ro_after_init PCI: Constify pcibus_class
2024-05-16Merge branch 'pci/ims-removal'Bjorn Helgaas1-5/+0
- Remove unused Interrupt Message Store (IMS) support (Bjorn Helgaas) * pci/ims-removal: Revert "genirq/msi: Provide constants for PCI/IMS support" Revert "x86/apic/msi: Enable PCI/IMS" Revert "iommu/vt-d: Enable PCI/IMS" Revert "iommu/amd: Enable PCI/IMS" Revert "PCI/MSI: Provide IMS (Interrupt Message Store) support" Revert "PCI/MSI: Provide pci_ims_alloc/free_irq()" Revert "PCI/MSI: Provide stubs for IMS functions"
2024-05-16riscv: Define TASK_SIZE_MAX for __access_ok()Samuel Holland1-0/+1
TASK_SIZE_MAX should be set to a constant value, at least the largest valid userspace address under any runtime configuration. This optimizes the check in __access_ok(), which no longer needs to compute the runtime value of TASK_SIZE. The check does not need to be exact, as long as it accepts all valid userspace addresses and rejects all valid kernel addresses; well-behaved programs will never fail the access_ok() check. For RISC-V, which requires all virtual addresses to be sign extended, the optimal choice is LONG_MAX because it simplifies the limit comparison to a sign bit test. This removes about half of the references to pgtable_l[45]_enabled. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Reviewed-by: Alexandre Ghiti <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2024-05-16riscv: Remove PGDIR_SIZE_L3 and TASK_SIZE_MINSamuel Holland2-4/+0
TASK_SIZE_MIN is unused since commit 085e2ff9aeb0 ("efi: libstub: Drop randomization of runtime memory map"). PGDIR_SIZE_L3 is only used in the definition of TASK_SIZE_MIN. Signed-off-by: Samuel Holland <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Reviewed-by: Alexandre Ghiti <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
2024-05-16x86/pci: Skip early E820 check for ECAM regionBjorn Helgaas1-11/+29
Arul, Mateusz, Imcarneiro91, and Aman reported a regression caused by 07eab0901ede ("efi/x86: Remove EfiMemoryMappedIO from E820 map"). On the Lenovo Legion 9i laptop, that commit removes the ECAM area from E820, which means the early E820 validation fails, which means we don't enable ECAM in the "early MCFG" path. The static MCFG table describes ECAM without depending on the ACPI interpreter. Many Legion 9i ACPI methods rely on that, so they fail when PCI config access isn't available, resulting in the embedded controller, PS/2, audio, trackpad, and battery devices not being detected. The _OSC method also fails, so Linux can't take control of the PCIe hotplug, PME, and AER features: # pci_mmcfg_early_init() PCI: ECAM [mem 0xc0000000-0xce0fffff] (base 0xc0000000) for domain 0000 [bus 00-e0] PCI: not using ECAM ([mem 0xc0000000-0xce0fffff] not reserved) ACPI Error: AE_ERROR, Returned by Handler for [PCI_Config] (20230628/evregion-300) ACPI: Interpreter enabled ACPI: Ignoring error and continuing table load ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PC00.RP01._SB.PC00], AE_NOT_FOUND (20230628/dswload2-162) ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20230628/psobject-220) ACPI: Skipping parse of AML opcode: OpcodeName unavailable (0x0010) ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PC00.RP01._SB.PC00], AE_NOT_FOUND (20230628/dswload2-162) ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20230628/psobject-220) ... ACPI Error: Aborting method \_SB.PC00._OSC due to previous error (AE_NOT_FOUND) (20230628/psparse-529) acpi PNP0A08:00: _OSC: platform retains control of PCIe features (AE_NOT_FOUND) # pci_mmcfg_late_init() PCI: ECAM [mem 0xc0000000-0xce0fffff] (base 0xc0000000) for domain 0000 [bus 00-e0] PCI: [Firmware Info]: ECAM [mem 0xc0000000-0xce0fffff] not reserved in ACPI motherboard resources PCI: ECAM [mem 0xc0000000-0xce0fffff] is EfiMemoryMappedIO; assuming valid PCI: ECAM [mem 0xc0000000-0xce0fffff] reserved to work around lack of ACPI motherboard _CRS Per PCI Firmware r3.3, sec 4.1.2, ECAM space must be reserved by a PNP0C02 resource, but there's no requirement to mention it in E820, so we shouldn't look at E820 to validate the ECAM space described by MCFG. In 2006, 946f2ee5c731 ("[PATCH] i386/x86-64: Check that MCFG points to an e820 reserved area") added a sanity check of E820 to work around buggy MCFG tables, but that over-aggressive validation causes failures like this one. Keep the E820 validation check for machines older than 2016, an arbitrary ten years after 946f2ee5c731, so machines that depend on it don't break. Skip the early E820 check for 2016 and newer BIOSes since there's no requirement to describe ECAM in E820. Link: https://lore.kernel.org/r/[email protected] Fixes: 07eab0901ede ("efi/x86: Remove EfiMemoryMappedIO from E820 map") Reported-by: Mateusz Kaduk <[email protected]> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218444 Signed-off-by: Bjorn Helgaas <[email protected]> Tested-by: Mateusz Kaduk <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Reviewed-by: Hans de Goede <[email protected]> Reviewed-by: Kuppuswamy Sathyanarayanan <[email protected]> Cc: [email protected]
2024-05-16Merge tag 'platform-drivers-x86-v6.10-1' of ↵Linus Torvalds1-1/+39
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - New drivers/platform/arm64 directory for arm64 embedded-controller drivers - New drivers: - Acer Aspire 1 embedded controllers (for arm64 models) - ACPI quickstart PNP0C32 buttons - Dell All-In-One backlight support (dell-uart-backlight) - Lenovo WMI camera buttons - Lenovo Yoga Tablet 2 Pro 1380F/L fast charging - MeeGoPad ANX7428 Type-C Cross Switch (power sequencing only) - MSI WMI sensors (fan speed sensors only for now) - Asus WMI: - 2024 ROG Mini-LED support - MCU powersave support - Vivobook GPU MUX support - Misc. other improvements - Ideapad laptop: - Export FnLock LED as LED class device - Switch platform profiles using thermal management key - Intel drivers: - IFS: various improvements - PMC: Lunar Lake support - SDSI: various improvements - TPMI/ISST: various improvements - tools: intel-speed-select: various improvements - MS Surface drivers: - Fan profile switching support - Surface Pro thermal sensors support - ThinkPad ACPI: - Reworked hotkey support to use sparse keymaps - Add support for new trackpoint-doubletap, Fn+N and Fn+G hotkeys - WMI core: - New WMI driver development guide - x86 Android tablets: - Lenovo Yoga Tablet 2 Pro 1380F/L support - Xiaomi MiPad 2 status LED and bezel touch buttons backlight support - Miscellaneous cleanups / fixes / improvements * tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (128 commits) platform/x86: Add new MeeGoPad ANX7428 Type-C Cross Switch driver devm-helpers: Fix a misspelled cancellation in the comments tools arch x86: Add dell-uart-backlight-emulator platform/x86: Add new Dell UART backlight driver platform/x86: x86-android-tablets: Create LED device for Xiaomi Pad 2 bottom bezel touch buttons platform/x86: x86-android-tablets: Xiaomi pad2 RGB LED fwnode updates platform/x86: x86-android-tablets: Pass struct device to init() platform/x86/amd: pmc: Add new ACPI ID AMDI000B platform/x86/amd: pmf: Add new ACPI ID AMDI0105 platform/x86: p2sb: Don't init until unassigned resources have been assigned platform/surface: aggregator: Log critical errors during SAM probing platform/x86: ISST: Support SST-BF and SST-TF per level platform/x86/fujitsu-laptop: Replace sprintf() with sysfs_emit() tools/power/x86/intel-speed-select: v1.19 release tools/power/x86/intel-speed-select: Display CPU as None for -1 tools/power/x86/intel-speed-select: SST BF/TF support per level tools/power/x86/intel-speed-select: Increase number of CPUs displayed tools/power/x86/intel-speed-select: Present all TRL levels for turbo-freq tools/power/x86/intel-speed-select: Fix display for unsupported levels tools/power/x86/intel-speed-select: Support multiple dies ...
2024-05-16powerpc/fadump: Fix section mismatch warningMichael Ellerman1-1/+1
With some compilers/configs fadump_setup_param_area() isn't inlined into its caller (which is __init), leading to a section mismatch warning: WARNING: modpost: vmlinux: section mismatch in reference: fadump_setup_param_area+0x200 (section: .text.fadump_setup_param_area) -> memblock_phys_alloc_range (section: .init.text) Fix it by adding an __init annotation. Fixes: 683eab94da75 ("powerpc/fadump: setup additional parameters for dump capture kernel") Reported-by: Stephen Rothwell <[email protected]> Closes: https://lore.kernel.org/all/[email protected]/ Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/all/[email protected]/ Signed-off-by: Michael Ellerman <[email protected]> Link: https://msgid.link/[email protected]
2024-05-16Merge branches 'amba', 'cfi', 'clkdev' and 'misc' into for-linusRussell King (Oracle)63-987/+2558
2024-05-16x86/boot: Add a fallthrough annotationBorislav Petkov2-0/+2
Add implicit fallthrough checking to the decompressor code and fix this warning: arch/x86/boot/printf.c: In function ‘vsprintf’: arch/x86/boot/printf.c:248:10: warning: this statement may fall through [-Wimplicit-fallthrough=] 248 | flags |= SMALL; | ^ arch/x86/boot/printf.c:249:3: note: here 249 | case 'X': | ^~~~ This is a patch from three years ago which I found in my trees, thus the SUSE authorship still. Signed-off-by: Borislav Petkov <[email protected]> Signed-off-by: Borislav Petkov (AMD) <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2024-05-16s390/kprobes: Remove custom insn slot allocatorHeiko Carstens4-89/+10
Since commit c98d2ecae08f ("s390/mm: Uncouple physical vs virtual address spaces") the kernel image and module area are within the same 4GB area. This eliminates the need of a custom insn slot allocator for kprobes within the kernel image, since standard module_alloc() allocated pages are sufficient for PC relative instructions with a signed 32 bit offset. Signed-off-by: Heiko Carstens <[email protected]>
2024-05-16s390/boot: Remove alt_stfle_fac_list from decompressorSven Schnelle2-2/+1
It is nowhere used in the decompressor, therefore remove it. Fixes: 17e89e1340a3 ("s390/facilities: move stfl information from lowcore to global data") Reviewed-by: Heiko Carstens <[email protected]> Signed-off-by: Sven Schnelle <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2024-05-16s390/cpacf: Make use of invalid opcode produce a link errorHarald Freudenberger1-2/+10
Instead of calling BUG() at runtime introduce and use a prototype for a non-existing function to produce a link error during compile when a not supported opcode is used with the __cpacf_query() or __cpacf_check_opcode() inline functions. Suggested-by: Heiko Carstens <[email protected]> Signed-off-by: Harald Freudenberger <[email protected]> Reviewed-by: Holger Dengler <[email protected]> Reviewed-by: Juergen Christ <[email protected]> Cc: [email protected] Signed-off-by: Heiko Carstens <[email protected]>
2024-05-16s390/cpacf: Split and rework cpacf query functionsHarald Freudenberger1-20/+81
Rework the cpacf query functions to use the correct RRE or RRF instruction formats and set register fields within instructions correctly. Fixes: 1afd43e0fbba ("s390/crypto: allow to query all known cpacf functions") Reported-by: Nina Schoetterl-Glausch <[email protected]> Suggested-by: Heiko Carstens <[email protected]> Suggested-by: Juergen Christ <[email protected]> Suggested-by: Holger Dengler <[email protected]> Signed-off-by: Harald Freudenberger <[email protected]> Reviewed-by: Holger Dengler <[email protected]> Reviewed-by: Juergen Christ <[email protected]> Cc: <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2024-05-16kprobe/ftrace: bail out if ftrace was killedStephen Brennan7-0/+21
If an error happens in ftrace, ftrace_kill() will prevent disarming kprobes. Eventually, the ftrace_ops associated with the kprobes will be freed, yet the kprobes will still be active, and when triggered, they will use the freed memory, likely resulting in a page fault and panic. This behavior can be reproduced quite easily, by creating a kprobe and then triggering a ftrace_kill(). For simplicity, we can simulate an ftrace error with a kernel module like [1]: [1]: https://github.com/brenns10/kernel_stuff/tree/master/ftrace_killer sudo perf probe --add commit_creds sudo perf trace -e probe:commit_creds # In another terminal make sudo insmod ftrace_killer.ko # calls ftrace_kill(), simulating bug # Back to perf terminal # ctrl-c sudo perf probe --del commit_creds After a short period, a page fault and panic would occur as the kprobe continues to execute and uses the freed ftrace_ops. While ftrace_kill() is supposed to be used only in extreme circumstances, it is invoked in FTRACE_WARN_ON() and so there are many places where an unexpected bug could be triggered, yet the system may continue operating, possibly without the administrator noticing. If ftrace_kill() does not panic the system, then we should do everything we can to continue operating, rather than leave a ticking time bomb. Link: https://lore.kernel.org/all/[email protected]/ Signed-off-by: Stephen Brennan <[email protected]> Acked-by: Masami Hiramatsu (Google) <[email protected]> Acked-by: Guo Ren <[email protected]> Reviewed-by: Steven Rostedt (Google) <[email protected]> Signed-off-by: Masami Hiramatsu (Google) <[email protected]>
2024-05-15Revert "x86/apic/msi: Enable PCI/IMS"Bjorn Helgaas1-5/+0
This reverts commit 6e24c887732901140f4e82ba2315c2e15f06f1d6. IMS (Interrupt Message Store) support appeared in v6.2, but there are no users yet. Remove it for now. We can add it back when a user comes along. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]>
2024-05-15Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds132-1903/+3852
Pull KVM updates from Paolo Bonzini: "ARM: - Move a lot of state that was previously stored on a per vcpu basis into a per-CPU area, because it is only pertinent to the host while the vcpu is loaded. This results in better state tracking, and a smaller vcpu structure. - Add full handling of the ERET/ERETAA/ERETAB instructions in nested virtualisation. The last two instructions also require emulating part of the pointer authentication extension. As a result, the trap handling of pointer authentication has been greatly simplified. - Turn the global (and not very scalable) LPI translation cache into a per-ITS, scalable cache, making non directly injected LPIs much cheaper to make visible to the vcpu. - A batch of pKVM patches, mostly fixes and cleanups, as the upstreaming process seems to be resuming. Fingers crossed! - Allocate PPIs and SGIs outside of the vcpu structure, allowing for smaller EL2 mapping and some flexibility in implementing more or less than 32 private IRQs. - Purge stale mpidr_data if a vcpu is created after the MPIDR map has been created. - Preserve vcpu-specific ID registers across a vcpu reset. - Various minor cleanups and improvements. LoongArch: - Add ParaVirt IPI support - Add software breakpoint support - Add mmio trace events support RISC-V: - Support guest breakpoints using ebreak - Introduce per-VCPU mp_state_lock and reset_cntx_lock - Virtualize SBI PMU snapshot and counter overflow interrupts - New selftests for SBI PMU and Guest ebreak - Some preparatory work for both TDX and SNP page fault handling. This also cleans up the page fault path, so that the priorities of various kinds of fauls (private page, no memory, write to read-only slot, etc.) are easier to follow. x86: - Minimize amount of time that shadow PTEs remain in the special REMOVED_SPTE state. This is a state where the mmu_lock is held for reading but concurrent accesses to the PTE have to spin; shortening its use allows other vCPUs to repopulate the zapped region while the zapper finishes tearing down the old, defunct page tables. - Advertise the max mappable GPA in the "guest MAXPHYADDR" CPUID field, which is defined by hardware but left for software use. This lets KVM communicate its inability to map GPAs that set bits 51:48 on hosts without 5-level nested page tables. Guest firmware is expected to use the information when mapping BARs; this avoids that they end up at a legal, but unmappable, GPA. - Fixed a bug where KVM would not reject accesses to MSR that aren't supposed to exist given the vCPU model and/or KVM configuration. - As usual, a bunch of code cleanups. x86 (AMD): - Implement a new and improved API to initialize SEV and SEV-ES VMs, which will also be extendable to SEV-SNP. The new API specifies the desired encryption in KVM_CREATE_VM and then separately initializes the VM. The new API also allows customizing the desired set of VMSA features; the features affect the measurement of the VM's initial state, and therefore enabling them cannot be done tout court by the hypervisor. While at it, the new API includes two bugfixes that couldn't be applied to the old one without a flag day in userspace or without affecting the initial measurement. When a SEV-ES VM is created with the new VM type, KVM_GET_REGS/KVM_SET_REGS and friends are rejected once the VMSA has been encrypted. Also, the FPU and AVX state will be synchronized and encrypted too. - Support for GHCB version 2 as applicable to SEV-ES guests. This, once more, is only accessible when using the new KVM_SEV_INIT2 flow for initialization of SEV-ES VMs. x86 (Intel): - An initial bunch of prerequisite patches for Intel TDX were merged. They generally don't do anything interesting. The only somewhat user visible change is a new debugging mode that checks that KVM's MMU never triggers a #VE virtualization exception in the guest. - Clear vmcs.EXIT_QUALIFICATION when synthesizing an EPT Misconfig VM-Exit to L1, as per the SDM. Generic: - Use vfree() instead of kvfree() for allocations that always use vcalloc() or __vcalloc(). - Remove .change_pte() MMU notifier - the changes to non-KVM code are small and Andrew Morton asked that I also take those through the KVM tree. The callback was only ever implemented by KVM (which was also the original user of MMU notifiers) but it had been nonfunctional ever since calls to set_pte_at_notify were wrapped with invalidate_range_start and invalidate_range_end... in 2012. Selftests: - Enhance the demand paging test to allow for better reporting and stressing of UFFD performance. - Convert the steal time test to generate TAP-friendly output. - Fix a flaky false positive in the xen_shinfo_test due to comparing elapsed time across two different clock domains. - Skip the MONITOR/MWAIT test if the host doesn't actually support MWAIT. - Avoid unnecessary use of "sudo" in the NX hugepage test wrapper shell script, to play nice with running in a minimal userspace environment. - Allow skipping the RSEQ test's sanity check that the vCPU was able to complete a reasonable number of KVM_RUNs, as the assert can fail on a completely valid setup. If the test is run on a large-ish system that is otherwise idle, and the test isn't affined to a low-ish number of CPUs, the vCPU task can be repeatedly migrated to CPUs that are in deep sleep states, which results in the vCPU having very little net runtime before the next migration due to high wakeup latencies. - Define _GNU_SOURCE for all selftests to fix a warning that was introduced by a change to kselftest_harness.h late in the 6.9 cycle, and because forcing every test to #define _GNU_SOURCE is painful. - Provide a global pseudo-RNG instance for all tests, so that library code can generate random, but determinstic numbers. - Use the global pRNG to randomly force emulation of select writes from guest code on x86, e.g. to help validate KVM's emulation of locked accesses. - Allocate and initialize x86's GDT, IDT, TSS, segments, and default exception handlers at VM creation, instead of forcing tests to manually trigger the related setup. Documentation: - Fix a goof in the KVM_CREATE_GUEST_MEMFD documentation" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (225 commits) selftests/kvm: remove dead file KVM: selftests: arm64: Test vCPU-scoped feature ID registers KVM: selftests: arm64: Test that feature ID regs survive a reset KVM: selftests: arm64: Store expected register value in set_id_regs KVM: selftests: arm64: Rename helper in set_id_regs to imply VM scope KVM: arm64: Only reset vCPU-scoped feature ID regs once KVM: arm64: Reset VM feature ID regs from kvm_reset_sys_regs() KVM: arm64: Rename is_id_reg() to imply VM scope KVM: arm64: Destroy mpidr_data for 'late' vCPU creation KVM: arm64: Use hVHE in pKVM by default on CPUs with VHE support KVM: arm64: Fix hvhe/nvhe early alias parsing KVM: SEV: Allow per-guest configuration of GHCB protocol version KVM: SEV: Add GHCB handling for termination requests KVM: SEV: Add GHCB handling for Hypervisor Feature Support requests KVM: SEV: Add support to handle AP reset MSR protocol KVM: x86: Explicitly zero kvm_caps during vendor module load KVM: x86: Fully re-initialize supported_mce_cap on vendor module load KVM: x86: Fully re-initialize supported_vm_types on vendor module load KVM: x86/mmu: Sanity check that __kvm_faultin_pfn() doesn't create noslot pfns KVM: x86/mmu: Initialize kvm_page_fault's pfn and hva to error values ...
2024-05-15Merge tag 'libnvdimm-for-6.10' of ↵Linus Torvalds2-206/+2
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull nvdimm updates from Ira Weiny: "The changes include removing duplicate code and updating the nvdimm tree to the current kernel interfaces such as using const for struct device_type and changing the platform remove callback signature" * tag 'libnvdimm-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: remove redundant assignment to variable rc ndtest: Convert to platform remove callback returning void nvdimm/btt: always set max_integrity_segments nvdimm: remove nd_integrity_init dax: constify the struct device_type usage powerpc/papr_scm: Move duplicate definitions to common header files
2024-05-15Merge tag 'modules-6.10-rc1' of ↵Linus Torvalds47-479/+503
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux Pull modules updates from Luis Chamberlain: "Finally something fun. Mike Rapoport does some cleanup to allow us to take out module_alloc() out of modules into a new paint shedded execmem_alloc() and execmem_free() so to make emphasis these helpers are actually used outside of modules. It starts with a non-functional changes API rename / placeholders to then allow architectures to define their requirements into a new shiny struct execmem_info with ranges, and requirements for those ranges. Archs now can intitialize this execmem_info as the last part of mm_core_init() if they have to diverge from the norm. Each range is a known type clearly articulated and spelled out in enum execmem_type. Although a lot of this is major cleanup and prep work for future enhancements an immediate clear gain is we get to enable KPROBES without MODULES now. That is ultimately what motiviated to pick this work up again, now with smaller goal as concrete stepping stone" * tag 'modules-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of kprobes: remove dependency on CONFIG_MODULES powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate x86/ftrace: enable dynamic ftrace without CONFIG_MODULES arch: make execmem setup available regardless of CONFIG_MODULES powerpc: extend execmem_params for kprobes allocations arm64: extend execmem_info for generated code allocations riscv: extend execmem_params for generated code allocations mm/execmem, arch: convert remaining overrides of module_alloc to execmem mm/execmem, arch: convert simple overrides of module_alloc to execmem mm: introduce execmem_alloc() and execmem_free() module: make module_memory_{alloc,free} more self-contained sparc: simplify module_alloc() nios2: define virtual address space for modules mips: module: rename MODULE_START to MODULES_VADDR arm64: module: remove unneeded call to kasan_alloc_module_shadow() kallsyms: replace deprecated strncpy with strscpy module: allow UNUSED_KSYMS_WHITELIST to be relative against objtree.
2024-05-15ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=yGeert Uytterhoeven2-2/+2
Booting an LPAE-enabled kernel built with CONFIG_CC_OPTIMIZE_FOR_SIZE=y fails when starting userspace: Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 CPU: 1 PID: 1 Comm: init Tainted: G W N 6.9.0-rc1-koelsch-00004-g7af5b901e847 #1930 Hardware name: Generic R-Car Gen2 (Flattened Device Tree) Call trace: unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x78/0xa8 dump_stack_lvl from panic+0x118/0x398 panic from do_exit+0x1ec/0x938 do_exit from sys_exit_group+0x0/0x10 ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 ]--- Add the missing memory clobber to cpu_set_ttbcr(), as suggested by Russell King. Force inlining of uaccess_save_and_enable(), as suggested by Ard Biesheuvel. The latter fixes booting on Koelsch. Closes: https://lore.kernel.org/r/CAMuHMdWTAJcZ9BReWNhpmsgkOzQxLNb5OhNYxzxv6D5TSh2fwQ@mail.gmail.com/ Fixes: 7af5b901e84743c6 ("ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement") Acked-by: Ard Biesheuvel <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Tested-by: Florian Fainelli <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Russell King (Oracle) <[email protected]>
2024-05-15Merge tag 'printk-for-6.10' of ↵Linus Torvalds23-25/+25
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Use no_printk() instead of "if (0) printk()" constructs to avoid generating printk index for messages disabled at compile time - Remove deprecated strncpy/strcpy from printk.c - Remove redundant CONFIG_BASE_FULL in favor of CONFIG_BASE_SMALL * tag 'printk-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printk: cleanup deprecated uses of strncpy/strcpy printk: Remove redundant CONFIG_BASE_FULL printk: Change type of CONFIG_BASE_SMALL to bool printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled ceph: Use no_printk() helper dyndbg: Use *no_printk() helpers dev_printk: Add and use dev_no_printk() printk: Let no_printk() use _printk()
2024-05-15Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds2-1/+3
Pull drm updates from Dave Airlie: "This is the main pull request for the drm subsystems for 6.10. In drivers the main thing is a new driver for ARM Mali firmware based GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and scattered changes to everything else. In the core a bunch of headers and Kconfig was refactored, along with the addition of a new panic handler which is meant to provide a user friendly message when a panic happens and graphical display is enabled. New drivers: - panthor: ARM Mali/Immortalis CSF-based GPU driver Core: - add a CONFIG_DRM_WERROR option - make more headers self-contained - grab resv lock in pin/unpin - fix vmap resv locking - EDID/eDP panel matching - Kconfig cleanups - DT sound bindings - Add SIZE_HINTS property for cursor planes - Add struct drm_edid_product_id and helpers. - Use drm device based logging in more drm functions. - drop seq_file.h from a bunch of places - use drm_edid driver conversions dp: - DP Tunnel documentation - MST read sideband cap - Adaptive sync SDP prep work ttm: - improve placement for TTM BOs in idle/busy handling panic: - Fixes for drm-panic, and option to test it. - Add drm panic to simpledrm, mgag200, imx, ast bridge: - improve init ordering - adv7511: allow GPIO pin sharing - tc358775: add tc358675 support panel: - AUO B120XAN01.0 - Samsung s6e3fa7 - BOE NT116WHM-N44 - CMN N116BCA-EA1, - CrystalClear CMT430B19N00 - Startek KD050HDFIA020-C020A - powertip PH128800T006-ZHC01 - Innolux G121X1-L03 - LG sw43408 - Khadas TS050 V2 - EDO RM69380 OLED - CSOT MNB601LS1-1 amdgpu: - HDCP/ODM/RAS fixes - Devcoredump improvements - Expose VCN activity via sysfs - SMY 13.0.x updates - Enable fast updates on DCN 3.1.4 - Add dclk and vclk reporting on additional devices - Add ACA RAS infrastructure - Implement TLB flush fence - EEPROM handling fixes - SMUIO 14.0.2 support - SMU 14.0.1 Updates - SMU 14.0.2 support - Sync page table freeing with TLB flushes - DML2 refactor - DC debug improvements - DCN 3.5.x Updates - GPU reset fixes - HDP fix for second GFX pipe on GC 10.x - Enable secondary GFX pipe on GC 10.3 - Refactor and clean up BACO/BOCO/BAMACO handling - Remove invalid TTM resource start check - UAF fix in VA IOCTL - GPUVM page fault redirection to secondary IH rings for IH 6.x - Initial support for mapping kernel queues via MES - Fix VRAM memory accounting amdkfd: - MQD handling cleanup - Preemption handling fixes for XCDs - TLB flush fix for GC 9.4.2 - Properly clean up workqueue during module unload - Fix memory leak process create failure - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace - Fix eviction fence handling - Fix leak in GPU memory allocation failure case - DMABuf import handling fix - Enable SQ watchpoint for gfx10 i915: - Adding new DG2 PCI ID - add context hints for GT frequency - enable only one CCS for compute workloads - new workarounds - Fix UAF on destroy against retire race and remove two earlier partial fixes - Limit the reserved VM space to only the platforms that need it - Fix gt reset with GuC submission is disable - Add and use gt_to_guc() wrapper i915/xe display: - Lunar Lake display enabling, including cdclk and other refactors - BIOS/VBT/opregion related refactor - Digital port related refactor/clean-up - Fix 2s boot time regression on DP panel replay init - Remove duplication on audio enable/disable on SDVO and g4x+ DP - Disable AuxCCS framebuffers if built for Xe - Make crtc disable more atomic - Increase DP idle pattern wait timeout to 2ms - Start using container_of_const() for some extra const safety - Fix Jasper Lake boot freeze - Enable MST mode for 128b/132b single-stream sideband - Enable Adaptive Sync SDP Support for DP - Fix MTL supported DP rates - removal of UHBR13.5 - PLL refactoring - Limit eDP MSO pipe only for display version 20 - More display refactor towards independence from i915 dev_priv - Convert i915/xe fbdev to DRM client - More initial work to make display code more independent from i915 xe: - improved error capture - clean up some uAPI leftovers - devcoredump update - Add BMG mocs table - Handle GSCCS ER interrupt - Implement xe2- and GuC workarounds - struct xe_device cleanup - Hwmon updates - Add LRC parsing for more GPU instruction - Increase VM_BIND number of per-ioctl Ops - drm/xe: Add XE_BO_GGTT_INVALIDATE flag - Initial development for SR-IOV support - Add new PCI IDs to DG2 platform - Move userptr over to start using hmm_range_fault msm: - Switched to generating register header files during build process instead of shipping pre-generated headers - Merged DPU and MDP4 format databases. - DP: - Stop using compat string to distinguish DP and eDP cases - Added support for X Elite platform (X1E80100) - Reworked DP aux/audio support - Added SM6350 DP to the bindings - GPU: - a7xx perfcntr reg fixes - MAINTAINERS updates - a750 devcoredump support radeon: - Silence UBSAN warnings related to flexible arrays nouveau: - move some uAPI objects to uapi headers omapdrm: - console fix ast: - add i2c polling qaic: - add debugfs entries exynos: - fix platform_driver .owner - drop cleanup code mediatek: - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe() - Add GAMMA 12-bit LUT support for MT8188 - Rename mtk_drm_* to mtk_* - Drop driver owner initialization - Correct calculation formula of PHY Timing" * tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits) drm/xe/ads: Use flexible-array drm/xe: Use ordered WQ for G2H handler drm/msm/gen_header: allow skipping the validation drm/msm/a6xx: Cleanup indexed regs const'ness drm/msm: Add devcoredump support for a750 drm/msm: Adjust a7xx GBIF debugbus dumping drm/msm: Update a6xx registers XML drm/msm: Fix imported a750 snapshot header for upstream drm/msm: Import a750 snapshot registers from kgsl MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails drm/msm/adreno: fix CP cycles stat retrieval on a7xx drm/msm/a7xx: allow writing to CP_BV counter selection registers drm: zynqmp_dpsub: Always register bridge Revert "drm/bridge: ti-sn65dsi83: Fix enable error path" drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer() drm/fbdev-generic: Do not set physical framebuffer address drm/panthor: Fix the FW reset logic drm/panthor: Make sure we handle 'unknown group state' case properly ...
2024-05-15drm/i915/pciids: don't include RPL-U PCI IDs in RPL-PJani Nikula1-0/+1
It's confusing for INTEL_RPLP_IDS() to include INTEL_RPLU_IDS(). Even if we treat them the same elsewhere, the lists of PCI IDs should not. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/28fe0910efb93a28c400728af14beff015667f42.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: remove 12 from INTEL_TGL_IDS()Jani Nikula1-1/+1
Most other PCI ID macros do not encode the gen in the name. Follow suit for TGL. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/044a5c553dc4564431bbef197d5e2dd085624fc2.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: remove 11 from INTEL_ICL_IDS()Jani Nikula1-1/+1
Most other PCI ID macros do not encode the gen in the name. Follow suit for ICL. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/36973674bf333dfdd7cd32ae656754bfa150022b.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: don't include WHL/CML PCI IDs in CFLJani Nikula1-0/+2
It's confusing for INTEL_CFL_IDS() to include all WHL and CML PCI IDs. Even if we treat them the same in a lot of places, CML is a platform of its own, and the lists of PCI IDs should not conflate them. Largely go by the idea that if a platform has a name, group its PCI IDs together. That said, AML is special, having both KBL and CFL variants. Leave that alone. v2: Also split out WHL not just CML (Rodrigo) Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/7cca91dc78ed2b5982f14e400f03a1704645e475.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: add INTEL_IVB_IDS()Jani Nikula1-2/+1
Add INTEL_IVB_IDS() to identify all IVBs except IVB Q transcode. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/ed89a25b2c6bce318fe59e883d18b62d9453196b.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: add INTEL_SNB_IDS()Jani Nikula1-2/+1
Add INTEL_SNB_IDS() to identify all SNBs. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/ffcb2d954ad9bca78ccd39836dc0a3dc7c6c0253.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: add INTEL_ILK_IDS(), use acronymJani Nikula1-2/+1
Most other PCI ID macros use platform acronyms. Follow suit for ILK. Add INTEL_ILK_IDS() to identify all ILKs. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/27ada56363cfa6a5b093cb31908a4b89aa912621.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15drm/i915/pciids: add INTEL_PNV_IDS(), use acronymJani Nikula1-2/+1
Most other PCI ID macros use platform acronyms. Follow suit for PNV. Add INTEL_PNV_IDS() to identify all PNVs. Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/5f9b34a2cd388244be03263a5147776bfe64d5ac.1715340032.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <[email protected]>
2024-05-15parisc: Define HAVE_ARCH_HUGETLB_UNMAPPED_AREAHelge Deller1-0/+1
Define the HAVE_ARCH_HUGETLB_UNMAPPED_AREA macro like other platforms do in their page.h files to avoid this compile warning: arch/parisc/mm/hugetlbpage.c:25:1: warning: no previous prototype for 'hugetlb_get_unmapped_area' [-Wmissing-prototypes] Signed-off-by: Helge Deller <[email protected]> Cc: [email protected] # 6.0+ Reported-by: John David Anglin <[email protected]> Tested-by: John David Anglin <[email protected]>
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