[GIT PULL] arm64 updates for 6.1-rc1

From: Catalin Marinas
Date: Wed Oct 05 2022 - 10:41:32 EST

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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()
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

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