Commit 09d2e95a authored by Zeng Heng's avatar Zeng Heng Committed by Will Deacon
Browse files

kselftest/arm64: add crc32 feature to hwcap test 



Add the CRC32 feature check in the set of hwcap tests.

Signed-off-by: default avatarZeng Heng <zengheng4@huawei.com>
Reviewed-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230808134036.668954-3-zengheng4@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent eb27c76a

tools/testing/selftests/arm64/abi/hwcap.c

+12 −0
Original line number Diff line number Diff line
@@ -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,