Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
authored by
Zeng Heng
and committed by
Will Deacon
09d2e95a
eb27c76a
+12
+12
tools/testing/selftests/arm64/abi/hwcap.c
+12
tools/testing/selftests/arm64/abi/hwcap.c
···
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*/
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typedef void (*sigill_fn)(void);
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static void crc32_sigill(void)
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{
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asm volatile("crc32w w0, w0, w1");
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}
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static void cssc_sigill(void)
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{
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/* CNT x0, x0 */
···
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sigill_fn sigill_fn;
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bool sigill_reliable;
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} hwcaps[] = {
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{
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.name = "CRC32",
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.at_hwcap = AT_HWCAP,
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.hwcap_bit = HWCAP_CRC32,
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.cpuinfo = "crc32",
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.sigill_fn = crc32_sigill,
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},
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{
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.name = "CSSC",
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.at_hwcap = AT_HWCAP2,