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Message-ID: <CAMi1Hd38YB2m_r=m0wuDz+wErii37fUq1BJnvN9=y6opDzo_Fw@mail.gmail.com>
Date: Sat, 8 Oct 2022 20:28:26 +0530
From: Amit Pundir <amit.pundir@...aro.org>
To: Will Deacon <will@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Bjorn Andersson <andersson@...nel.org>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [GIT PULL] arm64 updates for 6.1-rc1
On Wed, 5 Oct 2022 at 20:11, Catalin Marinas <catalin.marinas@....com> wrote:
>
> Hi Linus,
>
> Please pull the arm64 updates for 6.1-rc1. It's almost entirely
> contained within arch/arm64/, drivers/perf/ and tools/testing/ with a
> few additional changes in drivers/ due to more automatic sysreg
> definitions generation. There is a trivial conflict with current
> mainline removing the '__nocfi' annotation while the arm64 tree makes a
> pointer const for the same function. I included my merge resolution
> below.
>
> Thanks.
>
> The following changes since commit b90cb1053190353cc30f0fef0ef1f378ccc063c5:
>
> Linux 6.0-rc3 (2022-08-28 15:05:29 -0700)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux tags/arm64-upstream
>
> for you to fetch changes up to d2995249a2f72333a4ab4922ff3c42a76c023791:
>
> arm64: alternatives: Use vdso/bits.h instead of linux/bits.h (2022-10-05 10:44:44 +0100)
>
> diff --cc arch/arm64/kernel/alternative.c
> index d2c66507398d,64045e3ef03a..80772986687a
> --- a/arch/arm64/kernel/alternative.c
> +++ b/arch/arm64/kernel/alternative.c
> @@@ -133,8 -139,9 +139,8 @@@ static void clean_dcache_range_nopatch(
> } while (cur += d_size, cur < end);
> }
>
> - static void __apply_alternatives(struct alt_region *region, bool is_module,
> - unsigned long *feature_mask)
> -static void __nocfi __apply_alternatives(const struct alt_region *region,
> - bool is_module,
> - unsigned long *feature_mask)
> ++static void __apply_alternatives(const struct alt_region *region,
> ++ bool is_module, unsigned long *feature_mask)
> {
> struct alt_instr *alt;
> __le32 *origptr, *updptr;
>
> ----------------------------------------------------------------
> arm64 updates for 6.1:
>
> - arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE
> vector granule register added to the user regs together with SVE perf
> extensions documentation.
>
> - SVE updates: add HWCAP for SVE EBF16, update the SVE ABI documentation
> to match the actual kernel behaviour (zeroing the registers on syscall
> rather than "zeroed or preserved" previously).
>
> - More conversions to automatic system registers generation.
>
> - vDSO: use self-synchronising virtual counter access in gettimeofday()
> if the architecture supports it.
>
> - arm64 stacktrace cleanups and improvements.
>
> - arm64 atomics improvements: always inline assembly, remove LL/SC
> trampolines.
>
> - Improve the reporting of EL1 exceptions: rework BTI and FPAC exception
> handling, better EL1 undefs reporting.
>
> - Cortex-A510 erratum 2658417: remove BF16 support due to incorrect
> result.
>
> - arm64 defconfig updates: build CoreSight as a module, enable options
> necessary for docker, memory hotplug/hotremove, enable all PMUs
> provided by Arm.
>
> - arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME
> extensions).
>
> - arm64 ftraces updates/fixes: fix module PLTs with mcount, remove
> unused function.
>
> - kselftest updates for arm64: simple HWCAP validation, FP stress test
> improvements, validation of ZA regs in signal handlers, include larger
> SVE and SME vector lengths in signal tests, various cleanups.
>
> - arm64 alternatives (code patching) improvements to robustness and
> consistency: replace cpucap static branches with equivalent
> alternatives, associate callback alternatives with a cpucap.
>
> - Miscellaneous updates: optimise kprobe performance of patching
> single-step slots, simplify uaccess_mask_ptr(), move MTE registers
> initialisation to C, support huge vmalloc() mappings, run softirqs on
> the per-CPU IRQ stack, compat (arm32) misalignment fixups for
> multiword accesses.
>
> ----------------------------------------------------------------
> Ard Biesheuvel (1):
> arm64: compat: Implement misalignment fixups for multiword loads
>
> Catalin Marinas (4):
> Merge branches 'for-next/doc', 'for-next/sve', 'for-next/sysreg', 'for-next/gettimeofday', 'for-next/stacktrace', 'for-next/atomics', 'for-next/el1-exceptions', 'for-next/a510-erratum-2658417', 'for-next/defconfig', 'for-next/tpidr2_el0' and 'for-next/ftrace', remote-tracking branch 'arm64/for-next/perf' into for-next/core
> Merge branch 'for-next/kselftest' into for-next/core
> Merge branch 'for-next/alternatives' into for-next/core
> Merge branch 'for-next/misc' into for-next/core
>
> Colin Ian King (1):
> kselftest/arm64: Fix spelling misakes of signal names
>
> James Clark (3):
> perf: arm64: Add SVE vector granule register to user regs
> arm64/sve: Add Perf extensions documentation
> arm64: defconfig: Add Coresight as module
>
> James Morse (3):
> arm64: cpufeature: Force HWCAP to be based on the sysreg visible to user-space
> arm64: cpufeature: Expose get_arm64_ftr_reg() outside cpufeature.c
> arm64: errata: remove BF16 HWCAP due to incorrect result on Cortex-A510
>
> Joey Gouly (3):
> arm64: module: move find_section to header
> arm64: alternative: patch alternatives in the vDSO
> arm64: vdso: use SYS_CNTVCTSS_EL0 for gettimeofday
>
> Kefeng Wang (3):
> arm64: support huge vmalloc mappings
> arm64: defconfig: Enable memory hotplug and hotremove config
> arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate()
>
> Kristina Martsenko (3):
> arm64: cache: Remove unused CTR_CACHE_MINLINE_MASK
> arm64/sysreg: Standardise naming for ID_AA64MMFR1_EL1 fields
> arm64/sysreg: Convert ID_AA64MMFR1_EL1 to automatic generation
>
> Li Huafei (2):
> arm64: module: Make plt_equals_entry() static
> arm64: module: Remove unused plt_entry_is_initialized()
>
> Liao Chang (1):
> arm64/kprobe: Optimize the performance of patching single-step slot
>
> Liu Song (1):
> arm64: spectre: increase parameters that can be used to turn off bhb mitigation individually
>
> Mark Brown (65):
> kselftest/arm64: Add simple hwcap validation
> kselftest/arm64: Always encourage preemption for za-test
> kselftest/arm64: Count SIGUSR2 deliveries in FP stress tests
> arm64/sve: Document our actual ABI for clearing registers on syscall
> arm64/sysreg: Add hwcap for SVE EBF16
> kselftest/arm64: Install signal handlers before output in FP stress tests
> kselftest/arm64: kselftest harness for FP stress tests
> kselftest/arm64: Tighten up validation of ZA signal context
> kselftest/arm64: Add a test for signal frames with ZA disabled
> kselftest/arm64: Enumerate SME rather than SVE vector lengths for za_regs
> kselftest/arm64: Validate signal ucontext in place
> kselftest/arm64: Fix validatation termination record after EXTRA_CONTEXT
> kselftest/arm64: Fix validation of EXTRA_CONTEXT signal context location
> kselftest/arm64: Remove unneeded protype for validate_extra_context()
> kselftest/arm64: Only validate each signal context once
> kselftest/arm64: Validate contents of EXTRA_CONTEXT blocks
> kselftest/arm64: Preserve any EXTRA_CONTEXT in handle_signal_copyctx()
> kselftest/arm64: Allow larger buffers in get_signal_context()
> kselftest/arm64: Include larger SVE and SME VLs in signal tests
> kselftest/arm64: Correct buffer allocation for SVE Z registers
> kselftest/arm64: Enforce actual ABI for SVE syscalls
> arm64/sysreg: Remove stray SMIDR_EL1 defines
> arm64/sysreg: Describe ID_AA64SMFR0_EL1.SMEVer as an enumeration
> arm64/sysreg: Add _EL1 into ID_AA64MMFR0_EL1 definition names
> arm64/sysreg: Add _EL1 into ID_AA64MMFR2_EL1 definition names
> arm64/sysreg: Add _EL1 into ID_AA64PFR0_EL1 definition names
> arm64/sysreg: Add _EL1 into ID_AA64PFR1_EL1 constant names
> arm64/sysreg: Standardise naming of ID_AA64MMFR0_EL1.BigEnd
> arm64/sysreg: Standardise naming of ID_AA64MMFR0_EL1.ASIDBits
> arm64/sysreg: Standardise naming for ID_AA64MMFR2_EL1.VARange
> arm64/sysreg: Standardise naming for ID_AA64MMFR2_EL1.CnP
> arm64/sysreg: Standardise naming for ID_AA64PFR0_EL1 constants
> arm64/sysreg: Standardise naming for ID_AA64PFR0_EL1.AdvSIMD constants
> arm64/sysreg: Standardise naming for SSBS feature enumeration
> arm64/sysreg: Standardise naming for MTE feature enumeration
> arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 fractional version fields
> arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 BTI enumeration
> arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 SME enumeration
> arm64/sysreg: Convert HCRX_EL2 to automatic generation
> arm64/sysreg: Convert ID_AA64MMFR0_EL1 to automatic generation
> arm64/sysreg: Convert ID_AA64MMFR2_EL1 to automatic generation
> arm64/sysreg: Convert ID_AA64PFR0_EL1 to automatic generation
> arm64/sysreg: Convert ID_AA64PFR1_EL1 to automatic generation
> arm64/sysreg: Convert TIPDR_EL1 to automatic generation
> arm64/sysreg: Convert SCXTNUM_EL1 to automatic generation
> arm64/sysreg: Add defintion for ALLINT
> arm64/sysreg: Align field names in ID_AA64DFR0_EL1 with architecture
> arm64/sysreg: Add _EL1 into ID_AA64DFR0_EL1 definition names
> arm64/sysreg: Use feature numbering for PMU and SPE revisions
> arm64/sysreg: Convert ID_AA64FDR0_EL1 to automatic generation
> arm64/sysreg: Convert ID_AA64DFR1_EL1 to automatic generation
> arm64/sysreg: Convert ID_AA64AFRn_EL1 to automatic generation
> kselftest/arm64: Add missing newline in hwcap output
> kselftest/arm64: Add SVE 2 to the tested hwcaps
> kselftest/arm64: Add hwcap test for RNG
> arm64: configs: Enable all PMUs provided by Arm
> kselftest/arm64: Add test coverage for NT_ARM_TLS
> arm64/ptrace: Document extension of NT_ARM_TLS to cover TPIDR2_EL0
> arm64/ptrace: Support access to TPIDR2_EL0
> kselftest/arm64: Add coverage of TPIDR2_EL0 ptrace interface
> kselftest/arm64: Fix typo in hwcap check
> kselftest/arm64: Don't enable v8.5 for MTE selftest builds
> kselftest/arm64: Don't repeat termination handler for fp-stress
> kselftest/arm64: Flag fp-stress as exiting when we begin finishing up
> kselftest/arm64: Handle EINTR while reading data from children
>
> Mark Rutland (28):
> arm64: stacktrace: fix kerneldoc comments
> arm64: stacktrace: simplify unwind_next_common()
> arm64: stacktrace: rename unwind_next_common() -> unwind_next_frame_record()
> arm64: stacktrace: move SDEI stack helpers to stacktrace code
> arm64: stacktrace: add stackinfo_on_stack() helper
> arm64: stacktrace: rework stack boundary discovery
> arm64: stacktrace: remove stack type from fp translator
> arm64: stacktrace: track all stack boundaries explicitly
> arm64: stacktrace: track hyp stacks in unwinder's address space
> arm64: atomics: remove LL/SC trampolines
> arm64: atomic: always inline the assembly
> arm64: report EL1 UNDEFs better
> arm64: die(): pass 'err' as long
> arm64: consistently pass ESR_ELx to die()
> arm64: rework FPAC exception handling
> arm64: rework BTI exception handling
> arm64: cpufeature: make cpus_have_cap() noinstr-safe
> arm64: alternatives: kvm: prepare for cap changes
> arm64: alternatives: proton-pack: prepare for cap changes
> arm64: alternatives: hoist print out of __apply_alternatives()
> arm64: alternatives: make alt_region const
> arm64: alternatives: have callbacks take a cap
> arm64: alternatives: add alternative_has_feature_*()
> arm64: alternatives: add shared NOP callback
> arm64: avoid BUILD_BUG_ON() in alternative-macros
> arm64: uaccess: simplify uaccess_mask_ptr()
> arm64: fix the build with binutils 2.27
> arm64: ftrace: fix module PLTs with mcount
>
> Mike Rapoport (1):
> arm64/mm: fold check for KFENCE into can_set_direct_map()
>
> Nathan Chancellor (2):
> arm64/sysreg: Fix a few missed conversions
> arm64: alternatives: Use vdso/bits.h instead of linux/bits.h
>
> Peter Collingbourne (1):
> arm64: mte: move register initialization to C
>
> Qi Zheng (1):
> arm64: run softirqs on the per-CPU IRQ stack
>
> Shuai Xue (3):
> docs: perf: Add description for Alibaba's T-Head PMU driver
> drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC
> MAINTAINERS: add maintainers for Alibaba' T-Head PMU driver
>
> Vincenzo Frascino (1):
> arm64: Enable docker support in defconfig
>
> Will Deacon (2):
> arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()
Hi Will,
This patch broke AOSP on Dragonboard 845c (SDM845). I don't see any
relevant crash in the attached log and device silently reboots into
USB crash dump mode. The crash is fairly reproducible on db845c. I
could trigger it twice in 5 reboots and it always crash at the same
point during the boot process. Reverting this patch fixes the crash.
I'm happy to test run any debug patche(s), that would help narrow
down this breakage.
Regards,
Amit Pundir
> arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header
>
> Xiu Jianfeng (1):
> ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs
>
> Documentation/admin-guide/kernel-parameters.txt | 7 +-
> Documentation/admin-guide/perf/alibaba_pmu.rst | 100 +++
> Documentation/admin-guide/perf/index.rst | 1 +
> Documentation/arm64/elf_hwcaps.rst | 3 +
> Documentation/arm64/silicon-errata.rst | 2 +
> Documentation/arm64/sme.rst | 3 +
> Documentation/arm64/sve.rst | 22 +-
> MAINTAINERS | 6 +
> arch/arm64/Kconfig | 18 +
> arch/arm64/configs/defconfig | 23 +
> arch/arm64/include/asm/alternative-macros.h | 66 +-
> arch/arm64/include/asm/assembler.h | 20 +-
> arch/arm64/include/asm/atomic_ll_sc.h | 58 +-
> arch/arm64/include/asm/atomic_lse.h | 46 +-
> arch/arm64/include/asm/cache.h | 4 -
> arch/arm64/include/asm/cpufeature.h | 83 ++-
> arch/arm64/include/asm/el2_setup.h | 18 +-
> arch/arm64/include/asm/exception.h | 9 +-
> arch/arm64/include/asm/hw_breakpoint.h | 4 +-
> arch/arm64/include/asm/hwcap.h | 1 +
> arch/arm64/include/asm/kvm_mmu.h | 5 +-
> arch/arm64/include/asm/kvm_pgtable.h | 6 +-
> arch/arm64/include/asm/lse.h | 5 +-
> arch/arm64/include/asm/module.h | 15 +-
> arch/arm64/include/asm/mte.h | 5 +
> arch/arm64/include/asm/processor.h | 2 +-
> arch/arm64/include/asm/sdei.h | 17 -
> arch/arm64/include/asm/stacktrace.h | 71 +-
> arch/arm64/include/asm/stacktrace/common.h | 221 +++---
> arch/arm64/include/asm/stacktrace/nvhe.h | 4 +-
> arch/arm64/include/asm/sysreg.h | 211 +-----
> arch/arm64/include/asm/system_misc.h | 2 +-
> arch/arm64/include/asm/uaccess.h | 22 +-
> arch/arm64/include/asm/vdso.h | 3 +
> arch/arm64/include/asm/vdso/gettimeofday.h | 19 +-
> arch/arm64/include/uapi/asm/hwcap.h | 1 +
> arch/arm64/include/uapi/asm/perf_regs.h | 7 +
> arch/arm64/kernel/Makefile | 1 +
> arch/arm64/kernel/alternative.c | 94 ++-
> arch/arm64/kernel/compat_alignment.c | 387 ++++++++++
> arch/arm64/kernel/cpu_errata.c | 26 +
> arch/arm64/kernel/cpufeature.c | 325 +++++----
> arch/arm64/kernel/cpuinfo.c | 1 +
> arch/arm64/kernel/debug-monitors.c | 2 +-
> arch/arm64/kernel/entry-common.c | 32 +-
> arch/arm64/kernel/entry.S | 8 +-
> arch/arm64/kernel/ftrace.c | 17 +-
> arch/arm64/kernel/head.S | 10 +-
> arch/arm64/kernel/hyp-stub.S | 8 +-
> arch/arm64/kernel/idreg-override.c | 10 +-
> arch/arm64/kernel/image-vars.h | 5 +-
> arch/arm64/kernel/irq.c | 14 +
> arch/arm64/kernel/module-plts.c | 3 +-
> arch/arm64/kernel/module.c | 15 -
> arch/arm64/kernel/mte.c | 51 ++
> arch/arm64/kernel/perf_event.c | 8 +-
> arch/arm64/kernel/perf_regs.c | 30 +-
> arch/arm64/kernel/probes/kprobes.c | 27 +-
> arch/arm64/kernel/proton-pack.c | 16 +-
> arch/arm64/kernel/ptrace.c | 27 +-
> arch/arm64/kernel/reloc_test_core.c | 4 +-
> arch/arm64/kernel/sdei.c | 32 -
> arch/arm64/kernel/stacktrace.c | 66 +-
> arch/arm64/kernel/suspend.c | 2 +
> arch/arm64/kernel/traps.c | 48 +-
> arch/arm64/kernel/vdso.c | 3 -
> arch/arm64/kernel/vdso/vdso.lds.S | 7 +
> arch/arm64/kvm/debug.c | 4 +-
> arch/arm64/kvm/hyp/hyp-entry.S | 4 +-
> arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 60 +-
> arch/arm64/kvm/hyp/nvhe/pkvm.c | 38 +-
> arch/arm64/kvm/hyp/nvhe/stacktrace.c | 40 +-
> arch/arm64/kvm/hyp/nvhe/sys_regs.c | 10 +-
> arch/arm64/kvm/hyp/pgtable.c | 2 +-
> arch/arm64/kvm/pmu-emul.c | 16 +-
> arch/arm64/kvm/reset.c | 12 +-
> arch/arm64/kvm/stacktrace.c | 137 ++--
> arch/arm64/kvm/sys_regs.c | 48 +-
> arch/arm64/kvm/va_layout.c | 5 +-
> arch/arm64/mm/context.c | 6 +-
> arch/arm64/mm/dma-mapping.c | 2 +-
> arch/arm64/mm/fault.c | 3 +
> arch/arm64/mm/init.c | 2 +-
> arch/arm64/mm/mmu.c | 23 +-
> arch/arm64/mm/pageattr.c | 8 +-
> arch/arm64/mm/proc.S | 46 +-
> arch/arm64/tools/cpucaps | 3 +
> arch/arm64/tools/sysreg | 449 +++++++++++-
> drivers/firmware/efi/libstub/arm64-stub.c | 4 +-
> drivers/hwtracing/coresight/coresight-etm4x-core.c | 4 +-
> drivers/hwtracing/coresight/coresight-trbe.h | 3 +-
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 6 +-
> drivers/irqchip/irq-gic-v4.c | 2 +-
> drivers/perf/Kconfig | 7 +
> drivers/perf/Makefile | 1 +
> drivers/perf/alibaba_uncore_drw_pmu.c | 810 +++++++++++++++++++++
> drivers/perf/arm_pmu.c | 2 +-
> drivers/perf/arm_spe_pmu.c | 6 +-
> tools/testing/selftests/arm64/abi/.gitignore | 2 +
> tools/testing/selftests/arm64/abi/Makefile | 2 +-
> tools/testing/selftests/arm64/abi/hwcap.c | 336 +++++++++
> tools/testing/selftests/arm64/abi/ptrace.c | 241 ++++++
> tools/testing/selftests/arm64/abi/syscall-abi.c | 61 +-
> tools/testing/selftests/arm64/fp/.gitignore | 1 +
> tools/testing/selftests/arm64/fp/Makefile | 5 +-
> tools/testing/selftests/arm64/fp/asm-offsets.h | 1 +
> tools/testing/selftests/arm64/fp/fp-stress.c | 555 ++++++++++++++
> tools/testing/selftests/arm64/fp/fpsimd-test.S | 51 +-
> tools/testing/selftests/arm64/fp/sve-test.S | 51 +-
> tools/testing/selftests/arm64/fp/za-test.S | 58 +-
> tools/testing/selftests/arm64/mte/Makefile | 5 +-
> tools/testing/selftests/arm64/mte/mte_helper.S | 2 +
> .../selftests/arm64/signal/test_signals_utils.c | 59 +-
> .../selftests/arm64/signal/test_signals_utils.h | 5 +-
> .../signal/testcases/fake_sigreturn_bad_magic.c | 2 +-
> .../signal/testcases/fake_sigreturn_bad_size.c | 2 +-
> .../testcases/fake_sigreturn_bad_size_for_magic0.c | 2 +-
> .../testcases/fake_sigreturn_duplicated_fpsimd.c | 2 +-
> .../testcases/fake_sigreturn_misaligned_sp.c | 2 +-
> .../testcases/fake_sigreturn_missing_fpsimd.c | 2 +-
> .../testcases/fake_sigreturn_sme_change_vl.c | 2 +-
> .../testcases/fake_sigreturn_sve_change_vl.c | 2 +-
> .../selftests/arm64/signal/testcases/sme_vl.c | 2 +-
> .../selftests/arm64/signal/testcases/ssve_regs.c | 25 +-
> .../selftests/arm64/signal/testcases/sve_regs.c | 23 +-
> .../selftests/arm64/signal/testcases/sve_vl.c | 2 +-
> .../selftests/arm64/signal/testcases/testcases.c | 48 +-
> .../selftests/arm64/signal/testcases/testcases.h | 9 +-
> .../selftests/arm64/signal/testcases/za_no_regs.c | 119 +++
> .../selftests/arm64/signal/testcases/za_regs.c | 44 +-
> 130 files changed, 4615 insertions(+), 1260 deletions(-)
> create mode 100644 Documentation/admin-guide/perf/alibaba_pmu.rst
> create mode 100644 arch/arm64/kernel/compat_alignment.c
> create mode 100644 drivers/perf/alibaba_uncore_drw_pmu.c
> create mode 100644 tools/testing/selftests/arm64/abi/hwcap.c
> create mode 100644 tools/testing/selftests/arm64/abi/ptrace.c
> create mode 100644 tools/testing/selftests/arm64/fp/fp-stress.c
> create mode 100644 tools/testing/selftests/arm64/signal/testcases/za_no_regs.c
View attachment "arm64-upstream_6.1-rc1_crash.txt" of type "text/plain" (173799 bytes)
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