Commit 2c3ce0e7 authored by Zeng Heng's avatar Zeng Heng Committed by Will Deacon
Browse files

kselftest/arm64: add pmull feature to hwcap test 



Add the pmull 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/20230815040915.3966955-4-zengheng4@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 3fc3c0d1

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

+13 −0
Original line number Diff line number Diff line
@@ -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,