From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5BD7E125B2 for ; Mon, 9 Feb 2026 14:35:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770647724; cv=none; b=oRwvAApil0XZB6Ef5rrGThdZKKgO3DMbIUpg7ImjD0xjZeMD2070YvI7pNQRO2EsTRSKO/yj81WIksqSI3WduD//JJ1zMPUxIe3wHlUk4TLwRXJBCUwPqEG80UGlvUYw9lvACVIhEJaVE47+6ham5g3yzR0gAGoV96n43Gp9eZY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770647724; c=relaxed/simple; bh=+AEEw990sP9QJCIPuMXlE7BOSOh+LdxGmnNq1v3DSeY=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=Mb+jBUOOaOoYNnqXCi/tR92mMEoRtFXLDdQutOKagm39jBsgPeQZN4/QRqvaYCQtcGCBbgdzcSIt8Rn2qutuuLDV/w9x4g+ZB4lp+w4xwVGKlZFvOJshmvEUJHN2gDnxOe8r9pfAvy+NfZdOVQeGV7y1JXH4+bfwyVmJmhReMbs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=s4TeNJNN; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="s4TeNJNN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A0725C16AAE; Mon, 9 Feb 2026 14:35:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770647724; bh=+AEEw990sP9QJCIPuMXlE7BOSOh+LdxGmnNq1v3DSeY=; h=Date:From:To:Cc:Subject:From; b=s4TeNJNN20+7i0RTOg972jqP4MpS5w1a06D238tEuDYP4xc/6BoaX9lOJStLw4Sco UOnL7KUszJt4SErHHpHMYuvET1JGWtPM19yq2Whey8HIAqJFBUQiKp317CWdWaHxCz Fo6DsTGMSIDda6Jp+a5o+PhrOuOZfOPRqP5kEfyKIfu+JGRD0sCFMjMr0bEvcRaU08 5Q2N9y0eR3jTvYlFwbjyCdz5COF90Un9oYw1pkc4Eogil1YVq+alqWL4/ZA0rGHUWn LlhIM2YjBR4XKIBcV3j9K6LBUsXfJBQwa463UAMakxHNk1Gh70NfdoQOaSBfS1BrYi XH+ilH1aMm+Tg== Date: Mon, 9 Feb 2026 14:35:19 +0000 From: Will Deacon To: torvalds@linux-foundation.org Cc: catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com, maz@kernel.org Subject: [GIT PULL] arm64 updates for 7.0 Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hi Linus, Please pull these arm64 changes for 7.0. There's a little less than normal, probably due to LPC & Christmas/New Year meaning that a few series weren't quite ready or reviewed in time. It's still useful across the board, despite the only real feature being support for the LS64 feature enabling 64-byte atomic accesses to endpoints that support it. There's the usual summary in the tag. Logistics-wise, we ran into a couple of small conflicts in -next. The first one [1] is against a KVM/ARM fix in your tree (86364832ba6f ("KVM: arm64: Don't blindly set set PSTATE.PAN on guest exit") which clashes with the removal of CONFIG_ARM64_PAN in arch/arm64/kvm/hyp/entry.S. The right fix is to take what we have here so that the line becomes: ALTERNATIVE(nop, SET_PSTATE_PAN(1), ARM64_HAS_PAN) kvm_pan_patch_el2_entry() is then unused but is removed by the kvmarm tree (who share the for-next/cpufeature branch). Marc and I will do a sweep at -rc1 to remove anything left over. The second conflict [2] is a trivial MAINTAINERS conflict where Catalin and I have been added to the "ACPI FOR ARM64 (ACPI/arm64)" entry but Sudeep has changed his email address in the context. The only unusual part of the diffstat is the single-line removal of the unused 'SYSCALL_MAX_ARGS' definition from arch/xtensa, which was part of a series cleaning up our syscall_get_arguments() implementation and the maintainers were on cc. Please pull, Will [1] https://lore.kernel.org/r/86h5s8bca4.wl-maz@kernel.org [2] https://lore.kernel.org/r/aXtqo7r3bSDMNBek@sirena.org.uk --->8 The following changes since commit 8f0b4cce4481fb22653697cced8d0d04027cb1e8: Linux 6.19-rc1 (2025-12-14 16:05:07 +1200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-upstream for you to fetch changes up to 36c0de02575ce59dfd879eb4ef63d53a68bbf9ce: perf/arm-cmn: Reject unsupported hardware configurations (2026-02-03 19:43:52 +0000) ---------------------------------------------------------------- arm64 updates for 7.0 ACPI: - Add interrupt signalling support to the AGDI handler. - Add Catalin and myself to the arm64 ACPI MAINTAINERS entry. CPU features: - Drop Kconfig options for PAN and LSE (these are detected at runtime). - Add support for 64-byte single-copy atomic instructions (LS64/LS64V). - Reduce MTE overhead when executing in the kernel on Ampere CPUs. - Ensure POR_EL0 value exposed via ptrace is up-to-date. - Fix error handling on GCS allocation failure. CPU frequency: - Add CPU hotplug support to the FIE setup in the AMU driver. Entry code: - Minor optimisations and cleanups to the syscall entry path. - Preparatory rework for moving to the generic syscall entry code. Hardware errata: - Work around Spectre-BHB on TSV110 processors. - Work around broken CMO propagation on some systems with the SI-L1 interconnect. Miscellaneous: - Disable branch profiling for arch/arm64/ to avoid issues with noinstr. - Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of WARN_ON(), reduction of boolean expression). - Fix custom __READ_ONCE() implementation for LTO builds when operating on non-atomic types. Perf and PMUs: - Support for CMN-600AE. - Be stricter about supported hardware in the CMN driver. - Support for DSU-110 and DSU-120. - Support for the cycles event in the DSU driver (alongside the dedicated cycles counter). - Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver. - Use !bitmap_empty() as a faster alternative to bitmap_weight(). - Fix SPE error handling when failing to resume profiling. Selftests: - Add support for the FORCE_TARGETS option to the arm64 kselftests. - Avoid nolibc-specific my_syscall() function. - Add basic test for the LS64 HWCAP. - Extend fp-pidbench to cover additional workload patterns. ---------------------------------------------------------------- Breno Leitao (3): arm64: Disable branch profiling for all arm64 code arm64: mm: warn once for ioremap attempts on RAM mappings arm64/gcs: Fix error handling in arch_set_shadow_stack_status() Carl Worth (1): arm64: mte: Set TCMA1 whenever MTE is present in the kernel Geert Uytterhoeven (1): arm64: topology: Do not warn on missing AMU in cpuhp_topology_online() Hanjun Guo (1): MAINTAINERS: Update the maintainers for ARM64 ACPI I-Hsin Cheng (1): kselftest/arm64: Add missing file in .gitignore Jinjie Ruan (5): syscall.h: Remove unused SYSCALL_MAX_ARGS arm64: Avoid memcpy() for syscall_get_arguments() arm64: Remove unused _TIF_WORK_MASK arm64/ptrace: Split report_syscall() arm64/ptrace: Return early for ptrace_report_syscall_entry() error Jinqian Yang (1): arm64: Add support for TSV110 Spectre-BHB mitigation Joey Gouly (1): arm64: poe: fix stale POR_EL0 values for ptrace Kazuhiro Abe (1): ACPI: AGDI: Add interrupt signaling mode support Leo Yan (1): perf: arm_spe: Properly set hw.state on failures Lifeng Zheng (3): arm64: topology: Skip already covered CPUs when setting freq source cpufreq: Add new helper function returning cpufreq policy arm64: topology: Handle AMU FIE setup on CPU hotplug Lucas Wei (1): arm64: errata: Workaround for SI L1 downstream coherency issue Marc Zyngier (4): arm64: Unconditionally enable LSE support arm64: Unconditionally enable PAN support KVM: arm64: Add exit to userspace on {LD,ST}64B* outside of memslots KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B Marco Elver (1): arm64: Fix non-atomic __READ_ONCE() with CONFIG_LTO=y Mark Brown (3): kselftest/arm64: Support FORCE_TARGETS kselftest/arm64: Add a no-SVE loop after SVE in fp-pidbench kselftest/arm64: Raise default number of loops in fp-pidbench Osama Abdelkader (1): arm64: simplify arch_uprobe_xol_was_trapped return Robin Murphy (5): perf/arm-cmn: Support CMN-600AE perf/arm_dsu: Support DSU-110 perf/arm_dsu: Support DSU-120 perf/arm_dsu: Allow standard cycles events perf/arm-cmn: Reject unsupported hardware configurations Sebastian Andrzej Siewior (1): perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD Thomas Weißschuh (1): kselftest/arm64: Use syscall() macro over nolibc my_syscall() Will Deacon (8): Merge branch 'for-next/acpi' into for-next/core Merge branch 'for-next/cpufeature' into for-next/core Merge branch 'for-next/cpufreq' into for-next/core Merge branch 'for-next/entry' into for-next/core Merge branch 'for-next/errata' into for-next/core Merge branch 'for-next/misc' into for-next/core Merge branch 'for-next/perf' into for-next/core Merge branch 'for-next/selftests' into for-next/core Yeoreum Yun (1): arm64: kernel: initialize missing kexec_buf->random field Yicong Yang (5): KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1 KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest arm64: Add support for FEAT_{LS64, LS64_V} kselftest/arm64: Add HWCAP test for FEAT_LS64 Yury Norov (NVIDIA) (1): drivers: perf: use bitmap_empty() where appropriate Documentation/arch/arm64/booting.rst | 12 +++ Documentation/arch/arm64/elf_hwcaps.rst | 7 ++ Documentation/arch/arm64/silicon-errata.rst | 1 + Documentation/virt/kvm/api.rst | 43 +++++++++-- MAINTAINERS | 2 + arch/arm/include/asm/syscall.h | 2 - arch/arm64/Kbuild | 4 + arch/arm64/Kconfig | 52 +++++-------- arch/arm64/include/asm/assembler.h | 10 +++ arch/arm64/include/asm/cpucaps.h | 2 - arch/arm64/include/asm/el2_setup.h | 12 ++- arch/arm64/include/asm/esr.h | 8 ++ arch/arm64/include/asm/hwcap.h | 1 + arch/arm64/include/asm/insn.h | 23 ------ arch/arm64/include/asm/kvm_emulate.h | 7 ++ arch/arm64/include/asm/lse.h | 9 --- arch/arm64/include/asm/rwonce.h | 2 +- arch/arm64/include/asm/syscall.h | 18 +++-- arch/arm64/include/asm/thread_info.h | 6 -- arch/arm64/include/asm/uaccess.h | 6 +- arch/arm64/include/uapi/asm/hwcap.h | 1 + arch/arm64/kernel/cpu_errata.c | 31 ++++++++ arch/arm64/kernel/cpufeature.c | 34 +++++++-- arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kernel/kexec_image.c | 2 +- arch/arm64/kernel/probes/uprobes.c | 5 +- arch/arm64/kernel/proton-pack.c | 1 + arch/arm64/kernel/ptrace.c | 50 ++++++++---- arch/arm64/kernel/topology.c | 66 +++++++++++++++- arch/arm64/kvm/at.c | 7 -- arch/arm64/kvm/hyp/entry.S | 2 +- arch/arm64/kvm/inject_fault.c | 34 +++++++++ arch/arm64/kvm/mmio.c | 27 ++++++- arch/arm64/kvm/mmu.c | 14 +++- arch/arm64/lib/insn.c | 2 - arch/arm64/mm/gcs.c | 4 +- arch/arm64/mm/ioremap.c | 3 +- arch/arm64/mm/proc.S | 10 +-- arch/arm64/net/bpf_jit_comp.c | 7 -- arch/arm64/tools/cpucaps | 3 + arch/xtensa/include/asm/syscall.h | 1 - drivers/acpi/arm64/agdi.c | 101 ++++++++++++++++++++++--- drivers/base/arch_topology.c | 9 ++- drivers/cpufreq/cpufreq.c | 6 ++ drivers/perf/arm-cmn.c | 19 ++++- drivers/perf/arm_dsu_pmu.c | 37 +++++---- drivers/perf/arm_spe_pmu.c | 18 +++-- drivers/perf/cxl_pmu.c | 2 +- drivers/perf/riscv_pmu_sbi.c | 2 +- drivers/perf/starfive_starlink_pmu.c | 3 +- include/linux/cpufreq.h | 5 ++ include/uapi/linux/kvm.h | 3 +- tools/testing/selftests/arm64/Makefile | 6 +- tools/testing/selftests/arm64/abi/hwcap.c | 49 ++++++++++++ tools/testing/selftests/arm64/abi/tpidr2.c | 3 +- tools/testing/selftests/arm64/fp/fp-pidbench.S | 6 +- tools/testing/selftests/arm64/gcs/basic-gcs.c | 40 ++++------ tools/testing/selftests/arm64/mte/.gitignore | 1 + 58 files changed, 628 insertions(+), 214 deletions(-)