Validate that SVE B16B16 support is reported correctly and consistently to
userspace.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
tools/testing/selftests/arm64/abi/hwcap.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index e3d262831d91..d8a144213d04 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -226,6 +226,12 @@ static void sveaes_sigill(void)
asm volatile(".inst 0x4522e400" : : : "z0");
}
+static void sveb16b16_sigill(void)
+{
+ /* BFADD ZA.H[W0, 0], {Z0.H-Z1.H} */
+ asm volatile(".inst 0xC1E41C00" : : : );
+}
+
static void svepmull_sigill(void)
{
/* PMULLB Z0.Q, Z0.D, Z0.D */
@@ -493,6 +499,13 @@ static const struct hwcap_data {
.cpuinfo = "sveaes",
.sigill_fn = sveaes_sigill,
},
+ {
+ .name = "SVE2 B16B16",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SVE_B16B16,
+ .cpuinfo = "sveb16b16",
+ .sigill_fn = sveb16b16_sigill,
+ },
{
.name = "SVE2 PMULL",
.at_hwcap = AT_HWCAP2,
--
2.30.2
