diff mbox series

[v2,2/5] kselftest/arm64: add crc32 feature to hwcap test

Message ID 20230808134036.668954-3-zengheng4@huawei.com (mailing list archive)
State Accepted
Commit 09d2e95a04ad6fd258082ea3ba9a5bf52bbd5229
Headers show
Series kselftest/arm64: add features check to hwcap test | expand

Commit Message

Zeng Heng Aug. 8, 2023, 1:40 p.m. UTC 
Add the CRC32 feature check in the set of hwcap tests.

Signed-off-by: Zeng Heng <zengheng4@huawei.com>
---
 tools/testing/selftests/arm64/abi/hwcap.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

--
2.25.1
diff mbox series

Patch

diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index ec247587f2bf..70850bdb0e35 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -33,6 +33,11 @@ 
  */
 typedef void (*sigill_fn)(void);

+static void crc32_sigill(void)
+{
+	asm volatile("crc32w w0, w0, w1");
+}
+
 static void cssc_sigill(void)
 {
 	/* CNT x0, x0 */
@@ -233,6 +238,13 @@  static const struct hwcap_data {
 	sigill_fn sigill_fn;
 	bool sigill_reliable;
 } hwcaps[] = {
+	{
+		.name = "CRC32",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_CRC32,
+		.cpuinfo = "crc32",
+		.sigill_fn = crc32_sigill,
+	},
 	{
 		.name = "CSSC",
 		.at_hwcap = AT_HWCAP2,