kselftest/arm64: Fixes for fp-ptrace on SME only systems

[PATCH 0/3] kselftest/arm64: Fixes for fp-ptrace on SME only systems

Posted by Mark Brown 2 months, 2 weeks ago

When testing SME only systems I noticed that fp-ptrace does not cope at
all well with them, this series fixes the major issues so that the test
program completes successfully.  The reason I was looking at this is
that following the recent round of fixes to ptrace we do not currently
offer any mechanism for disabling streaming mode via ptrace, this series
brings the program to a point where it tests the currently implemented
ABI.  A further series allowing the disabling of streaming mode via
ptrace will follow.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
Mark Brown (3):
      kselftest/arm64: Test SME on SME only systems in fp-ptrace
      kselftest/arm64: Fix SVE write data generation for SME only systems
      kselftest/arm64: Handle attempts to disable SM on SME only systems

 tools/testing/selftests/arm64/fp/fp-ptrace.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
---
base-commit: 86731a2a651e58953fc949573895f2fa6d456841
change-id: 20250718-arm64-fp-ptrace-sme-only-ab327d7f0d32

Best regards,
--  
Mark Brown <broonie@kernel.org>

Re: [PATCH 0/3] kselftest/arm64: Fixes for fp-ptrace on SME only systems

Posted by Catalin Marinas 2 months, 2 weeks ago

On Fri, 18 Jul 2025 23:14:49 +0100, Mark Brown wrote:
> When testing SME only systems I noticed that fp-ptrace does not cope at
> all well with them, this series fixes the major issues so that the test
> program completes successfully.  The reason I was looking at this is
> that following the recent round of fixes to ptrace we do not currently
> offer any mechanism for disabling streaming mode via ptrace, this series
> brings the program to a point where it tests the currently implemented
> ABI.  A further series allowing the disabling of streaming mode via
> ptrace will follow.
> 
> [...]

Applied to arm64 (for-next/kselftest), thanks!

[1/3] kselftest/arm64: Test SME on SME only systems in fp-ptrace
      https://git.kernel.org/arm64/c/b021f45d39f3
[2/3] kselftest/arm64: Fix SVE write data generation for SME only systems
      https://git.kernel.org/arm64/c/aa7d3c8bc27d
[3/3] kselftest/arm64: Handle attempts to disable SM on SME only systems
      https://git.kernel.org/arm64/c/4752dcc156f2

-- 
Catalin