kselftest/arm64: Add SVE 2.1 to hwcap test

Add coverage for FEAT_SVE2p1.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20221017152520.1039165-7-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index 30f87dfd634e2f710cc1f6cc8aa8534f779f0501..9f255bc5f31cbe8f7fce7a5a774af5844fed1e4d 100644 (file)
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -62,6 +62,12 @@ static void sve2_sigill(void)
        asm volatile(".inst 0x4408A000" : : : "z0");
 }
 
+static void sve2p1_sigill(void)
+{
+       /* BFADD Z0.H, Z0.H, Z0.H */
+       asm volatile(".inst 0x65000000" : : : "z0");
+}
+
 static void sveaes_sigill(void)
 {
        /* AESD z0.b, z0.b, z0.b */
@@ -167,6 +173,13 @@ static const struct hwcap_data {
                .cpuinfo = "sve2",
                .sigill_fn = sve2_sigill,
        },
+       {
+               .name = "SVE 2.1",
+               .at_hwcap = AT_HWCAP2,
+               .hwcap_bit = HWCAP2_SVE2P1,
+               .cpuinfo = "sve2p1",
+               .sigill_fn = sve2p1_sigill,
+       },
        {
                .name = "SVE AES",
                .at_hwcap = AT_HWCAP2,