kernel/tools/testing/selftests/arm64/abi, branch linux-6.2.y

kselftest/arm64: Fix syscall-abi for systems without 128 bit SME

2023-03-10T08:28:06Z

[ Upstream commit 97ec597b26df774a257e3f8e97353fd1b4471615 ] SME does not mandate any specific VL so we may not have 128 bit SME but the algorithm used for enumerating VLs assumes that we will. Add the required check to ensure that the algorithm terminates. Fixes: 43e3f85523e4 ("kselftest/arm64: Add SME support to syscall ABI test") Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20221223-arm64-syscall-abi-sme-only-v1-1-4fabfbd62087@kernel.org Signed-off-by: Catalin Marinas Signed-off-by: Sasha Levin

Merge branch 'for-next/selftests' into for-next/core

2022-12-06T11:25:43Z

* for-next/selftests: kselftest/arm64: Allow epoll_wait() to return more than one result kselftest/arm64: Don't drain output while spawning children kselftest/arm64: Hold fp-stress children until they're all spawned kselftest/arm64: Set test names prior to starting children kselftest/arm64: Use preferred form for predicate load/stores kselftest/arm64: fix array_size.cocci warning kselftest/arm64: fix array_size.cocci warning kselftest/arm64: Print ASCII version of unknown signal frame magic values kselftest/arm64: Remove validation of extra_context from TODO kselftest/arm64: Provide progress messages when signalling children kselftest/arm64: Check that all children are producing output in fp-stress

kselftest/arm64: Use preferred form for predicate load/stores

2022-11-18T14:18:10Z

The preferred form of the str/ldr for predicate registers with an immediate of zero is to omit the zero, and the clang built in assembler rejects the zero immediate. Drop the immediate. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20221117114130.687261-1-broonie@kernel.org Signed-off-by: Will Deacon

kselftest/arm64: Add SVE 2.1 to hwcap test

2022-11-09T17:54:54Z

Add coverage for FEAT_SVE2p1. Signed-off-by: Mark Brown Reviewed-by: Catalin Marinas Link: https://lore.kernel.org/r/20221017152520.1039165-7-broonie@kernel.org Signed-off-by: Will Deacon

kselftest/arm64: Add FEAT_RPRFM to the hwcap test

2022-11-09T17:54:53Z

Since the newly added instruction is in the HINT space we can't reasonably test for it actually being present. Signed-off-by: Mark Brown Reviewed-by: Catalin Marinas Link: https://lore.kernel.org/r/20221017152520.1039165-5-broonie@kernel.org Signed-off-by: Will Deacon

kselftest/arm64: Add FEAT_CSSC to the hwcap selftest

2022-11-09T17:54:53Z

Add FEAT_CSSC to the set of features checked by the hwcap selftest. Signed-off-by: Mark Brown Reviewed-by: Catalin Marinas Link: https://lore.kernel.org/r/20221017152520.1039165-3-broonie@kernel.org Signed-off-by: Will Deacon

Merge branch 'for-next/kselftest' into for-next/core

2022-09-30T08:18:11Z

* for-next/kselftest: (28 commits) : Kselftest updates for arm64 kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress kselftest/arm64: Don't enable v8.5 for MTE selftest builds kselftest/arm64: Fix typo in hwcap check kselftest/arm64: Add hwcap test for RNG kselftest/arm64: Add SVE 2 to the tested hwcaps kselftest/arm64: Add missing newline in hwcap output kselftest/arm64: Fix spelling misakes of signal names kselftest/arm64: Enforce actual ABI for SVE syscalls kselftest/arm64: Correct buffer allocation for SVE Z registers kselftest/arm64: Include larger SVE and SME VLs in signal tests kselftest/arm64: Allow larger buffers in get_signal_context() kselftest/arm64: Preserve any EXTRA_CONTEXT in handle_signal_copyctx() kselftest/arm64: Validate contents of EXTRA_CONTEXT blocks kselftest/arm64: Only validate each signal context once kselftest/arm64: Remove unneeded protype for validate_extra_context() kselftest/arm64: Fix validation of EXTRA_CONTEXT signal context location kselftest/arm64: Fix validatation termination record after EXTRA_CONTEXT kselftest/arm64: Validate signal ucontext in place ...

kselftest/arm64: Fix typo in hwcap check

2022-09-22T19:52:06Z

We use a local variable hwcap to refer to the element of the hwcaps array which we are currently checking. When checking for the relevant hwcap bit being set in testing we were dereferencing hwcaps rather than hwcap in fetching the AT_HWCAP to use, which is perfectly valid C but means we were always checking the bit was set in the hwcap for whichever feature is first in the array. Remove the stray s. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220907113400.12982-1-broonie@kernel.org Signed-off-by: Catalin Marinas

kselftest/arm64: Add coverage of TPIDR2_EL0 ptrace interface

2022-09-21T16:26:59Z

Extend the ptrace test support for NT_ARM_TLS to cover TPIDR2_EL0 - on systems that support SME the NT_ARM_TLS regset can be up to 2 elements long with the second element containing TPIDR2_EL0. On systems supporting SME we verify that this value can be read and written while on systems that do not support SME we verify correct truncation of reads and writes. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220829154921.837871-5-broonie@kernel.org Signed-off-by: Catalin Marinas

kselftest/arm64: Add test coverage for NT_ARM_TLS

2022-09-21T16:26:58Z

In preparation for extending support for NT_ARM_TLS to cover additional TPIDRs add some tests for the existing interface. Do this in a generic ptrace test program to provide a place to collect additional tests in the future. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220829154921.837871-2-broonie@kernel.org Signed-off-by: Catalin Marinas