kselftest/arm64: add float-point feature to hwcap test

Add the FP feature check in the set of hwcap tests.

Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230808134036.668954-2-zengheng4@huawei.com
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 6a0adf9..ec24758 100644 (file)
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -39,6 +39,11 @@ static void cssc_sigill(void)
        asm volatile(".inst 0xdac01c00" : : : "x0");
 }
 
+static void fp_sigill(void)
+{
+       asm volatile("fmov s0, #1");
+}
+
 static void ilrcpc_sigill(void)
 {
        /* LDAPUR W0, [SP, #8] */
@@ -236,6 +241,13 @@ static const struct hwcap_data {
                .sigill_fn = cssc_sigill,
        },
        {
+               .name = "FP",
+               .at_hwcap = AT_HWCAP,
+               .hwcap_bit = HWCAP_FP,
+               .cpuinfo = "fp",
+               .sigill_fn = fp_sigill,
+       },
+       {
                .name = "LRCPC",
                .at_hwcap = AT_HWCAP,
                .hwcap_bit = HWCAP_LRCPC,