Commit 859a9d51 authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas
Browse files

kselftest/arm64: Add SVE 2 to the tested hwcaps 



Include SVE 2 and the various subfeatures it adds in the set of
hwcaps we check for.

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220913141101.151400-3-broonie@kernel.org


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 78d2b197

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

+136 −0
Original line number Diff line number Diff line
@@ -45,6 +45,66 @@ static void sve_sigill(void) 
	asm volatile(".inst 0x04bf5000" : : : "x0");

}



static void sve2_sigill(void)

{

	/* SQABS Z0.b, P0/M, Z0.B */

	asm volatile(".inst 0x4408A000" : : : "z0");

}



static void sveaes_sigill(void)

{

	/* AESD z0.b, z0.b, z0.b */

	asm volatile(".inst 0x4522e400" : : : "z0");

}



static void svepmull_sigill(void)

{

	/* PMULLB Z0.Q, Z0.D, Z0.D */

	asm volatile(".inst 0x45006800" : : : "z0");

}



static void svebitperm_sigill(void)

{

	/* BDEP Z0.B, Z0.B, Z0.B */

	asm volatile(".inst 0x4500b400" : : : "z0");

}



static void svesha3_sigill(void)

{

	/* EOR3 Z0.D, Z0.D, Z0.D, Z0.D */

	asm volatile(".inst 0x4203800" : : : "z0");

}



static void svesm4_sigill(void)

{

	/* SM4E Z0.S, Z0.S, Z0.S */

	asm volatile(".inst 0x4523e000" : : : "z0");

}



static void svei8mm_sigill(void)

{

	/* USDOT Z0.S, Z0.B, Z0.B[0] */

	asm volatile(".inst 0x44a01800" : : : "z0");

}



static void svef32mm_sigill(void)

{

	/* FMMLA Z0.S, Z0.S, Z0.S */

	asm volatile(".inst 0x64a0e400" : : : "z0");

}



static void svef64mm_sigill(void)

{

	/* FMMLA Z0.D, Z0.D, Z0.D */

	asm volatile(".inst 0x64e0e400" : : : "z0");

}



static void svebf16_sigill(void)

{

	/* BFCVT Z0.H, P0/M, Z0.S */

	asm volatile(".inst 0x658aa000" : : : "z0");

}



static const struct hwcap_data {

	const char *name;

	unsigned long at_hwcap;
@@ -69,6 +129,82 @@ static const struct hwcap_data { 
		.sigill_fn = sve_sigill,

		.sigill_reliable = true,

	},

	{

		.name = "SVE 2",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVE2,

		.cpuinfo = "sve2",

		.sigill_fn = sve2_sigill,

	},

	{

		.name = "SVE AES",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEAES,

		.cpuinfo = "sveaes",

		.sigill_fn = sveaes_sigill,

	},

	{

		.name = "SVE2 PMULL",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEPMULL,

		.cpuinfo = "svepmull",

		.sigill_fn = svepmull_sigill,

	},

	{

		.name = "SVE2 BITPERM",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEBITPERM,

		.cpuinfo = "svebitperm",

		.sigill_fn = svebitperm_sigill,

	},

	{

		.name = "SVE2 SHA3",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVESHA3,

		.cpuinfo = "svesha3",

		.sigill_fn = svesha3_sigill,

	},

	{

		.name = "SVE2 SM4",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVESM4,

		.cpuinfo = "svesm4",

		.sigill_fn = svesm4_sigill,

	},

	{

		.name = "SVE2 I8MM",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEI8MM,

		.cpuinfo = "svei8mm",

		.sigill_fn = svei8mm_sigill,

	},

	{

		.name = "SVE2 F32MM",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEF32MM,

		.cpuinfo = "svef32mm",

		.sigill_fn = svef32mm_sigill,

	},

	{

		.name = "SVE2 F64MM",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEF64MM,

		.cpuinfo = "svef64mm",

		.sigill_fn = svef64mm_sigill,

	},

	{

		.name = "SVE2 BF16",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVEBF16,

		.cpuinfo = "svebf16",

		.sigill_fn = svebf16_sigill,

	},

	{

		.name = "SVE2 EBF16",

		.at_hwcap = AT_HWCAP2,

		.hwcap_bit = HWCAP2_SVE_EBF16,

		.cpuinfo = "sveebf16",

	},

};



static bool seen_sigill;