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kselftest/arm64: add pmull feature to hwcap test

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Add the pmull 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/20230815040915.3966955-4-zengheng4@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Zeng Heng 2023-08-15 12:09:14 +08:00 committed by Will Deacon
parent 3fc3c0d124
commit 2c3ce0e7dd
1 changed files with 13 additions and 0 deletions
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13
tools/testing/selftests/arm64/abi/hwcap.c
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@ -88,6 +88,12 @@ static void mops_sigill(void)
: "cc", "memory");
}
static void pmull_sigill(void)
{
/* PMULL V0.1Q, V0.1D, V0.1D */
asm volatile(".inst 0x0ee0e000" : : : );
}
static void rng_sigill(void)
{
asm volatile("mrs x0, S3_3_C2_C4_0" : : : "x0");
@ -345,6 +351,13 @@ static const struct hwcap_data {
.sigill_fn = mops_sigill,
.sigill_reliable = true,
},
{
.name = "PMULL",
.at_hwcap = AT_HWCAP,
.hwcap_bit = HWCAP_PMULL,
.cpuinfo = "pmull",
.sigill_fn = pmull_sigill,
},
{
.name = "RNG",
.at_hwcap = AT_HWCAP2,