kselftest/arm64: Fix encoding for SVE B16B16 test

[PATCH] kselftest/arm64: Fix encoding for SVE B16B16 test

Posted by Mark Brown 3 weeks, 6 days ago

The test for SVE_B16B16 had a cut'n'paste of a SME instruction, fix it with
a relevant SVE instruction.

Fixes: 44d10c27bd75 ("kselftest/arm64: Add 2023 DPISA hwcap test coverage")
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 tools/testing/selftests/arm64/abi/hwcap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index f2d6007a2b983eba77a880ec7e614396a6cb1377..1e4ed89802f76c2bcbe4bfd1a9a987970db8b97d 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -361,8 +361,8 @@ static void sveaes_sigill(void)
 
 static void sveb16b16_sigill(void)
 {
-	/* BFADD ZA.H[W0, 0], {Z0.H-Z1.H} */
-	asm volatile(".inst 0xC1E41C00" : : : );
+	/* BFADD Z0.H, Z0.H, Z0.H */
+	asm volatile(".inst 0x65000000" : : : );
 }
 
 static void svepmull_sigill(void)

---
base-commit: 8e929cb546ee42c9a61d24fae60605e9e3192354
change-id: 20241024-arm64-b16b16-test-a1c7bad2478e

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

Re: [PATCH] kselftest/arm64: Fix encoding for SVE B16B16 test

Posted by Catalin Marinas 3 weeks, 2 days ago

On Mon, 28 Oct 2024 20:22:31 +0000, Mark Brown wrote:
> The test for SVE_B16B16 had a cut'n'paste of a SME instruction, fix it with
> a relevant SVE instruction.
> 
> 

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

[1/1] kselftest/arm64: Fix encoding for SVE B16B16 test
      https://git.kernel.org/arm64/c/69c0d8247798

-- 
Catalin