From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Fuad Tabba <fuad.tabba@linux.dev>,
Mark Rutland <mark.rutland@arm.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH 03/11] kselftest/arm64: Move exit calls out of fp-stress loads
Date: Tue, 01 Sep 2026 18:06:43 +0100 [thread overview]
Message-ID: <20260901-arm64-fp-stress-kvm-v1-3-31bce995b49b@kernel.org> (raw)
In-Reply-To: <20260901-arm64-fp-stress-kvm-v1-0-31bce995b49b@kernel.org>
When they detect corruption the fp-stress test loads print load specific
diagnostics and exits with a failure status. In preparation for
building versions intended to run as KVM guests factor the exits into
asm-utils-linux.S.
No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
tools/testing/selftests/arm64/fp/asm-utils-linux.S | 8 ++++++++
tools/testing/selftests/arm64/fp/fpsimd-test.S | 4 +---
tools/testing/selftests/arm64/fp/sve-test.S | 8 ++------
tools/testing/selftests/arm64/fp/za-test.S | 8 ++------
tools/testing/selftests/arm64/fp/zt-test.S | 4 +---
5 files changed, 14 insertions(+), 18 deletions(-)
diff --git a/tools/testing/selftests/arm64/fp/asm-utils-linux.S b/tools/testing/selftests/arm64/fp/asm-utils-linux.S
index 3effeb1fbf50..9cd31dc47709 100644
--- a/tools/testing/selftests/arm64/fp/asm-utils-linux.S
+++ b/tools/testing/selftests/arm64/fp/asm-utils-linux.S
@@ -84,3 +84,11 @@ function tickle_handler
ret
endfunction
.globl tickle_handler
+
+// Terminate the program, reporting failure. Does not return.
+function exit_error
+ mov x0, #1
+ mov x8, #__NR_exit
+ svc #0
+endfunction
+.globl exit_error
diff --git a/tools/testing/selftests/arm64/fp/fpsimd-test.S b/tools/testing/selftests/arm64/fp/fpsimd-test.S
index 9db7b5419397..5ee8ef51ea4e 100644
--- a/tools/testing/selftests/arm64/fp/fpsimd-test.S
+++ b/tools/testing/selftests/arm64/fp/fpsimd-test.S
@@ -298,7 +298,5 @@ function barf
bl dumphex
puts "]\n"
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
diff --git a/tools/testing/selftests/arm64/fp/sve-test.S b/tools/testing/selftests/arm64/fp/sve-test.S
index 2aadb5c3c0f3..3447fe0e5554 100644
--- a/tools/testing/selftests/arm64/fp/sve-test.S
+++ b/tools/testing/selftests/arm64/fp/sve-test.S
@@ -543,9 +543,7 @@ function vl_barf
mov x0, x10
bl putdecn
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
function svcr_barf
@@ -555,7 +553,5 @@ function svcr_barf
mov x0, x10
bl putdecn
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
diff --git a/tools/testing/selftests/arm64/fp/za-test.S b/tools/testing/selftests/arm64/fp/za-test.S
index 84e63e510f23..33dc4ce8bfa1 100644
--- a/tools/testing/selftests/arm64/fp/za-test.S
+++ b/tools/testing/selftests/arm64/fp/za-test.S
@@ -354,9 +354,7 @@ function vl_barf
mov x0, x10
bl putdecn
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
function svcr_barf
@@ -366,7 +364,5 @@ function svcr_barf
mov x0, x10
bl putdecn
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
diff --git a/tools/testing/selftests/arm64/fp/zt-test.S b/tools/testing/selftests/arm64/fp/zt-test.S
index afcadb5aff23..c67242c2d5ab 100644
--- a/tools/testing/selftests/arm64/fp/zt-test.S
+++ b/tools/testing/selftests/arm64/fp/zt-test.S
@@ -284,7 +284,5 @@ function svcr_barf
mov x0, x10
bl putdecn
- mov x8, #__NR_exit
- mov x1, #1
- svc #0
+ b exit_error
endfunction
--
2.47.3
next prev parent reply other threads:[~2026-09-01 17:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 17:06 [PATCH 00/11] kselftest/arm64: Add coverage of interactions with KVM to fp-stress Mark Brown
2026-09-01 17:06 ` [PATCH 01/11] kselftest/arm64: Factor Linux syscalls out of asm-utils.S Mark Brown
2026-09-01 17:06 ` [PATCH 02/11] kselftest/arm64: Factor shared signal handlers out of fp-stress loads Mark Brown
2026-09-01 17:06 ` Mark Brown [this message]
2026-09-01 17:06 ` [PATCH 04/11] kselftest/arm64: Use exit_error() rather than SIGABRT in fp-stress Mark Brown
2026-09-01 17:06 ` [PATCH 05/11] kselftest/arm64: Exit with an error code on data mismatches " Mark Brown
2026-09-01 17:06 ` [PATCH 06/11] kselftest/arm64: Factor startup code out of fp-stress load programs Mark Brown
2026-09-01 17:06 ` [PATCH 07/11] kselftest/arm64: Remove the sched_yield()s from the fp-stress loads Mark Brown
2026-09-01 17:06 ` [PATCH 08/11] kselftest/arm64: Add a very simple VMM for use in fp-stress Mark Brown
2026-09-01 17:06 ` [PATCH 09/11] kselftest/arm64: Build KVM guest versions of the fp-stress loads Mark Brown
2026-09-01 17:06 ` [PATCH 10/11] kselftest/arm64: Use execv() to start fp-stress test loads Mark Brown
2026-09-01 17:06 ` [PATCH 11/11] kselftest/arm64: Run KVM guests from fp-stress Mark Brown
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