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kselftest/arm64: add crc32 feature to hwcap test

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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>
This commit is contained in:
Zeng Heng 2023-08-08 21:40:33 +08:00 committed by Will Deacon
parent eb27c76ac9
commit 09d2e95a04
1 changed files with 12 additions and 0 deletions
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12
tools/testing/selftests/arm64/abi/hwcap.c
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@ -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,