Aggregated FPSIMD/SVE/SME P0 Changes - #156

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hbrobin wants to merge 85 commits into

openvelinux:opensource-lts_upgrade_6.6.151-2026-08-21_20-50-15from

hbrobin:6.6.151-lts-FPSIMD-SVE-SME-on-MR13

Commits on Dec 18, 2023

kselftest/arm64: Don't probe the current VL for unsupported vector types

broonie
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hbrobin
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2907609

Commits on Jan 22, 2024

kselftest/arm64: Test that ptrace takes effect in the target process

broonie
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hbrobin
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fc3919a

Commits on Nov 12, 2024

kselftets/arm64: Use flag bits for features in fp-ptrace assembler code

broonie
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hbrobin
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3f9b9df
kselftest/arm64: Expand the set of ZA writes fp-ptrace does

broonie
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hbrobin
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4c3c5a6
kselftest/arm64: Add FPMR coverage to fp-ptrace

broonie
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hbrobin
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ad74248

Commits on Apr 17, 2025

arm64/fpsimd: signal: Clear TPIDR2 when delivering signals

mrutland-arm
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hbrobin
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ab49b2b

Commits on May 8, 2025

arm64/fpsimd: signal: Clear PSTATE.SM when restoring FPSIMD frame only

mrutland-arm
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hbrobin
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7e68a34
arm64/fpsimd: ptrace: Consistently handle partial writes to NT_ARM_(S)SVE

mrutland-arm
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hbrobin
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a5d04be
arm64/fpsimd: Clarify sve_sync_*() functions

mrutland-arm
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hbrobin
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010abc9
arm64/fpsimd: Factor out {sve,sme}_state_size() helpers

mrutland-arm
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hbrobin
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0f615f7
arm64/fpsimd: Add task_smstop_sm()

mrutland-arm
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hbrobin
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0f85bcf
arm64/fpsimd: signal: Use SMSTOP behaviour in setup_return()

mrutland-arm
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hbrobin
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abcc944
arm64/fpsimd: Remove redundant task->mm check

mrutland-arm
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hbrobin
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705b6a7
arm64/fpsimd: Consistently preserve FPSIMD state during clone()

mrutland-arm
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hbrobin
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7c14197
arm64/fpsimd: Clear PSTATE.SM during clone()

mrutland-arm
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hbrobin
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bbfed1e
arm64/fpsimd: Make clone() compatible with ZA lazy saving

mrutland-arm
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hbrobin
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acf62f5
arm64/fpsimd: ptrace/prctl: Ensure VL changes do not resurrect stale data

mrutland-arm
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hbrobin
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737e32f
arm64/fpsimd: ptrace/prctl: Ensure VL changes leave task in a valid state

mrutland-arm
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hbrobin
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925e468
arm64/fpsimd: ptrace: Save task state before generating SVE header

mrutland-arm
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hbrobin
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761e61f
arm64/fpsimd: ptrace: Do not present register data for inactive mode

mrutland-arm
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hbrobin
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c9e522c
arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state

mrutland-arm
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hbrobin
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59c5fa6
arm64/fpsimd: ptrace: Gracefully handle errors

mrutland-arm
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hbrobin
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06363ca
arm64/fpsimd: Allow CONFIG_ARM64_SME to be selected

mrutland-arm
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hbrobin
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6861f3c
kselftest/arm64: fp-ptrace: Fix expected FPMR value when PSTATE.SM is changed

mrutland-arm
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hbrobin
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5b77244
kselftest/arm64: tpidr2: Adjust to new clone() behaviour

mrutland-arm
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hbrobin
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6af2ed5
kselftest/arm64: fp-ptrace: Adjust to new VL change behaviour

mrutland-arm
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hbrobin
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7593983
kselftest/arm64: fp-ptrace: Adjust to new inactive mode behaviour

mrutland-arm
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hbrobin
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a9e05e5

Commits on Jun 9, 2025

kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptrace

broonie
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hbrobin
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e9964f6

Commits on Jun 20, 2025

arm64: Filter out SME hwcaps when FEAT_SME isn't implemented

broonie
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hbrobin
committed
bebb33b

Commits on Jul 18, 2025

kselftest/arm64: Fix SVE write data generation for SME only systems

broonie
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hbrobin
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267796b
kselftest/arm64: Handle attempts to disable SM on SME only systems

broonie
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489a3e5
kselftest/arm64: Test SME on SME only systems in fp-ptrace

broonie
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hbrobin
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cafbb6e

Commits on Jan 20, 2026

arm64/fpsimd: ptrace: Fix SVE writes on !SME systems

mrutland-arm
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hbrobin
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24cc45e

Commits on May 5, 2026

arm64/fpsimd: ptrace: zero target's fpsimd_state, not the tracer's

leitao
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hbrobin
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3889217

Commits on Jul 29, 2026

arm64/fpsimd: ptrace: Fix inactive SVE and SSVE regsets

kmehltretter82
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hbrobin
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43a9e6f
kselftest/arm64: fp-ptrace: Fix checks for inactive SVE and SSVE regsets

kmehltretter82
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hbrobin
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a2e6430

Commits on Sep 11, 2026

arm64/sysreg: Add definition for ID_AA64PFR2_EL1

broonie
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hbrobin
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1244210
arm64/sysreg: Update ID_AA64ISAR2_EL1 defintion for DDI0601 2023-09

broonie
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hbrobin
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723d688
arm64/sysreg: Add definition for ID_AA64ISAR3_EL1

broonie
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0d03de5
arm64/sysreg: Add definition for ID_AA64FPFR0_EL1

broonie
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24fc9aa
arm64/sysreg: Update ID_AA64SMFR0_EL1 definition for DDI0601 2023-09

broonie
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fece9c8
arm64/sysreg: Update SCTLR_EL1 for DDI0601 2023-09

broonie
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3fdec64
arm64/sysreg: Update HCRX_EL2 definition for DDI0601 2023-09

broonie
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4aa9c59
arm64/sysreg: Add definition for FPMR

broonie
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hbrobin
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54a33da

Commits on Sep 17, 2026

arm64/fpsimd: Add fpsimd_save_and_flush_current_state()

mrutland-arm
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ae20126
arm64/fpsimd: signal32: Always save+flush state early

mrutland-arm
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973a914
arm64/sve: Report FEAT_SVE_B16B16 to userspace

broonie
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446a96e
kselftest/arm64: Verify HWCAP2_SVE_B16B16

broonie
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646c529
arm64/cpufeature: Hook new identification registers up to cpufeature

broonie
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eb84abb
arm64/fpsimd: Enable host kernel access to FPMR

broonie
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8d1eae2
arm64/fpsimd: Support FEAT_FPMR

broonie
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c154713
arm64/signal: Add FPMR signal handling

broonie
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061e877
arm64/ptrace: Expose FPMR via ptrace

broonie
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4170e5f
arm64/hwcap: Define hwcaps for 2023 DPISA features

broonie
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3781baf
kselftest/arm64: Handle FPMR context in generic signal frame parser

broonie
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71eef2b
kselftest/arm64: Add basic FPMR test

broonie
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484c0f7
kselftest/arm64: Add 2023 DPISA hwcap test coverage

broonie
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ba736db
arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR

mrutland-arm
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83c2279
arm64/fpsimd: Don't corrupt FPMR when streaming mode changes

broonie
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2a943c9
arm64/fpsimd: Reset FPMR upon exec()

mrutland-arm
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7ee62e4
kselftest/arm64: hwcap: fix f8dp2 cpuinfo name

Andre-ARM
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12dc55f
kselftest/arm64: Fix encoding for SVE B16B16 test

broonie
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3c65fd8
arm64/fpsimd: signal: Always save+flush state early

mrutland-arm
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a381a55
arm64/fpsimd: Avoid warning when sve_to_fpsimd() is unused

mrutland-arm
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939cf75
arm64: fpsimd: Drop unneeded 'busy' flag

ardbiesheuvel
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72631a6
arm64: fpsimd: Preserve/restore kernel mode NEON at context switch

ardbiesheuvel
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47a8ee7
arm64: fpsimd: Bring cond_yield asm macro in line with new rules

ardbiesheuvel
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400ce9f
arm64/fpsimd: Avoid erroneous elide of user state reload

ardbiesheuvel
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951c902
crypto: api - move crypto_simd_disabled_for_test to lib

ebiggers
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dfadad3
riscv: Optimize crc32 with Zbc extension

XiaoWang1772
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aca0ac6
arm64/lib: Handle CRC-32 alternative in C code

ardbiesheuvel
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cdef7da
arm64/crc32: Reorganize bit/byte ordering macros

ardbiesheuvel
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782741e
arm64/crc32: Implement 4-way interleave using PMULL

ardbiesheuvel
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907a1e0
arm64/fpsimd: Avoid clobbering kernel FPSIMD state with SMSTOP

mrutland-arm
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hbrobin
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2858d16
arm64/sysreg: Update ID_AA64PFR2_EL1 to DDI0601 2024-09

broonie
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validation
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6a8b470
arm64/sysreg: Update ID_AA64ISAR3_EL1 to DDI0601 2024-09

broonie
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validation
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93ea17c
arm64/sysreg: Update ID_AA64FPFR0_EL1 to DDI0601 2024-09

broonie
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1f34fa9
arm64/sysreg: Update ID_AA64ZFR0_EL1 to DDI0601 2024-09

broonie
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validation
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6771ead
arm64/sysreg: Update ID_AA64ISAR2_EL1 to DDI0601 2024-09

broonie
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ae45bcd
arm64/sysreg: Update ID_AA64SMFR0_EL1 to DDI0601 2024-12

broonie
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7197e40
arm64/hwcap: Describe 2024 dpISA extensions to userspace

broonie
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172f195
KVM: arm64: Allow control of dpISA extensions in ID_AA64ISAR3_EL1

broonie
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1a291ff
kselftest/arm64: Add 2024 dpISA extensions to hwcap test

broonie
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23b080a
arm64/hwcap: Remove stray references to SF8MMx

broonie
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validation
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0f82983
arm64: Add missing registrations of hwcaps

broonie
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committed
1de0502