| Message ID | 20241112-arm64-fp-ptrace-fpmr-v2-0-250b57c61254@kernel.org |
|---|---|
| Headers | show |
| Series | kselftest/arm64: fp-ptrace enhancements | expand |
On Tue, Nov 12, 2024 at 01:08:16PM +0000, Mark Brown wrote: > + // This has to come after we set PSTATE.SM > +check_fpmr_in: > + tbz x0, #HAVE_FPMR_SHIFT, wait_for_writes > + adrp x7, fpmr_in > + ldr x7, [x7, :lo12:fpmr_in] > + msr FPMR, x7 Did this build for you? I may not have a new enough assembler. fp-ptrace-asm.S:149:6: error: expected writable system register or pstate msr FPMR, x7 I changed it to REG_FPMR locally.
This series contains a bit of a grab bag of improvements to the floating point tests, mainly fp-ptrace. Globally over all the tests we start using defines from the generated sysregs (following the example of the KVM selftests) for SVCR, stop being quite so wasteful with registers when calling into the assembler code then expand the coverage of both ZA writes and FPMR (which was not there since fp-ptrace and the 2023 dpISA extensions were on the list at the same time). Signed-off-by: Mark Brown <broonie@kernel.org> --- Changes in v2: - Drop attempt to reference sysreg-defs.h due to build issues, just import the defines directly into fp-ptrace. We can revisit later. - Link to v1: https://lore.kernel.org/r/20241107-arm64-fp-ptrace-fpmr-v1-0-3e5e0b6e3be9@kernel.org --- Mark Brown (3): kselftets/arm64: Use flag bits for features in fp-ptrace assembler code kselftest/arm64: Expand the set of ZA writes fp-ptrace does kselftest/arm64: Add FPMR coverage to fp-ptrace tools/testing/selftests/arm64/fp/fp-ptrace-asm.S | 41 ++++-- tools/testing/selftests/arm64/fp/fp-ptrace.c | 161 +++++++++++++++++++++-- tools/testing/selftests/arm64/fp/fp-ptrace.h | 12 ++ tools/testing/selftests/arm64/fp/sme-inst.h | 2 + 4 files changed, 188 insertions(+), 28 deletions(-) --- base-commit: 8e929cb546ee42c9a61d24fae60605e9e3192354 change-id: 20241105-arm64-fp-ptrace-fpmr-ff061facd3da Best regards,