Commit 3eb1b41f authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas

kselftest/arm64: Add coverage of SME 2 and 2.1 hwcaps

Add the hwcaps defined by SME 2 and 2.1 to the hwcaps test.
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-21-f2fa0aef982f@kernel.orgSigned-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 4e1aa1a1
...@@ -50,6 +50,78 @@ static void sme_sigill(void) ...@@ -50,6 +50,78 @@ static void sme_sigill(void)
asm volatile(".inst 0x04bf5800" : : : "x0"); asm volatile(".inst 0x04bf5800" : : : "x0");
} }
static void sme2_sigill(void)
{
/* SMSTART ZA */
asm volatile("msr S0_3_C4_C5_3, xzr" : : : );
/* ZERO ZT0 */
asm volatile(".inst 0xc0480001" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void sme2p1_sigill(void)
{
/* SMSTART SM */
asm volatile("msr S0_3_C4_C3_3, xzr" : : : );
/* BFCLAMP { Z0.H - Z1.H }, Z0.H, Z0.H */
asm volatile(".inst 0xc120C000" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void smei16i32_sigill(void)
{
/* SMSTART */
asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
/* SMOPA ZA0.S, P0/M, P0/M, Z0.B, Z0.B */
asm volatile(".inst 0xa0800000" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void smebi32i32_sigill(void)
{
/* SMSTART */
asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
/* BMOPA ZA0.S, P0/M, P0/M, Z0.B, Z0.B */
asm volatile(".inst 0x80800008" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void smeb16b16_sigill(void)
{
/* SMSTART */
asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
/* BFADD ZA.H[W0, 0], {Z0.H-Z1.H} */
asm volatile(".inst 0xC1E41C00" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void smef16f16_sigill(void)
{
/* SMSTART */
asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
/* FADD ZA.H[W0, 0], { Z0.H-Z1.H } */
asm volatile(".inst 0xc1a41C00" : : : );
/* SMSTOP */
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
static void sve_sigill(void) static void sve_sigill(void)
{ {
/* RDVL x0, #0 */ /* RDVL x0, #0 */
...@@ -158,6 +230,49 @@ static const struct hwcap_data { ...@@ -158,6 +230,49 @@ static const struct hwcap_data {
.sigill_fn = sme_sigill, .sigill_fn = sme_sigill,
.sigill_reliable = true, .sigill_reliable = true,
}, },
{
.name = "SME2",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME2,
.cpuinfo = "sme2",
.sigill_fn = sme2_sigill,
.sigill_reliable = true,
},
{
.name = "SME 2.1",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME2P1,
.cpuinfo = "sme2p1",
.sigill_fn = sme2p1_sigill,
},
{
.name = "SME I16I32",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME_I16I32,
.cpuinfo = "smei16i32",
.sigill_fn = smei16i32_sigill,
},
{
.name = "SME BI32I32",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME_BI32I32,
.cpuinfo = "smebi32i32",
.sigill_fn = smebi32i32_sigill,
},
{
.name = "SME B16B16",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME_B16B16,
.cpuinfo = "smeb16b16",
.sigill_fn = smeb16b16_sigill,
},
{
.name = "SME F16F16",
.at_hwcap = AT_HWCAP2,
.hwcap_bit = HWCAP2_SME_F16F16,
.cpuinfo = "smef16f16",
.sigill_fn = smef16f16_sigill,
},
{ {
.name = "SVE", .name = "SVE",
.at_hwcap = AT_HWCAP, .at_hwcap = AT_HWCAP,
......
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