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| author | Zeng Heng <zengheng4@huawei.com> | 2023-08-08 21:40:33 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-08-11 12:24:16 +0100 |
| commit | 09d2e95a04ad6fd258082ea3ba9a5bf52bbd5229 (patch) | |
| tree | f1bc34449aa0f1963484413b94a8603ac321af94 /tools/testing/selftests/arm64/abi/hwcap.c | |
| parent | eb27c76ac9e1cf5e278703db8f2fea1ed5d3f78a (diff) | |
| download | lwn-09d2e95a04ad6fd258082ea3ba9a5bf52bbd5229.tar.gz lwn-09d2e95a04ad6fd258082ea3ba9a5bf52bbd5229.zip | |
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>
Diffstat (limited to 'tools/testing/selftests/arm64/abi/hwcap.c')
| -rw-r--r-- | tools/testing/selftests/arm64/abi/hwcap.c | 12 |
1 files changed, 12 insertions, 0 deletions
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, |