From: Zeng Heng <zengheng4@huawei.com>
Date: Tue, 8 Aug 2023 13:40:33 +0000 (+0800)
Subject: kselftest/arm64: add crc32 feature to hwcap test
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=09d2e95a04ad;p=tomoyo%2Ftomoyo-test1.git

kselftest/arm64: add crc32 feature to hwcap test

Add the CRC32 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/20230808134036.668954-3-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 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 */
@@ -234,6 +239,13 @@ static const struct hwcap_data {
 	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,
 		.hwcap_bit = HWCAP2_CSSC,