Commit fcb0b51a authored by Zeng Heng's avatar Zeng Heng Committed by Will Deacon
Browse files

kselftest/arm64: add jscvt feature to hwcap test 



Add the jscvt feature check in the set of hwcap tests.

Due to the requirement of jscvt feature, a compiler configuration
of v8.3 or above is needed to support assembly. Therefore, hand
encode is used here instead.

Signed-off-by: default avatarZeng Heng <zengheng4@huawei.com>
Reviewed-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230815040915.3966955-5-zengheng4@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 2c3ce0e7

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

+13 −0
Original line number Diff line number Diff line
@@ -68,6 +68,12 @@ static void ilrcpc_sigill(void) 
	asm volatile(".inst 0x994083e0" : : : );

}



static void jscvt_sigill(void)

{

	/* FJCVTZS W0, D0 */

	asm volatile(".inst 0x1e7e0000" : : : );

}



static void lrcpc_sigill(void)

{

	/* LDAPR W0, [SP, #0] */
@@ -313,6 +319,13 @@ static const struct hwcap_data { 
		.cpuinfo = "fp",

		.sigill_fn = fp_sigill,

	},

	{

		.name = "JSCVT",

		.at_hwcap = AT_HWCAP,

		.hwcap_bit = HWCAP_JSCVT,

		.cpuinfo = "jscvt",

		.sigill_fn = jscvt_sigill,

	},

	{

		.name = "LRCPC",

		.at_hwcap = AT_HWCAP,