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Message-Id: <20240122-arm64-2023-dpisa-v4-9-776e094861df@kernel.org>
Date: Mon, 22 Jan 2024 16:28:12 +0000
From: Mark Brown <broonie@...nel.org>
To: Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
Oliver Upton <oliver.upton@...ux.dev>, James Morse <james.morse@....com>,
Suzuki K Poulose <suzuki.poulose@....com>, Jonathan Corbet <corbet@....net>,
Shuah Khan <shuah@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Dave Martin <dave.martin@....com>, kvmarm@...ts.linux.dev,
linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
Mark Brown <broonie@...nel.org>
Subject: [PATCH v4 09/14] kselftest/arm64: Add 2023 DPISA hwcap test
coverage
Add the hwcaps added for the 2023 DPISA extensions to the hwcaps test
program.
Signed-off-by: Mark Brown <broonie@...nel.org>
---
tools/testing/selftests/arm64/abi/hwcap.c | 217 ++++++++++++++++++++++++++++++
1 file changed, 217 insertions(+)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index 1189e77c8152..d8909b2b535a 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -58,11 +58,46 @@ static void cssc_sigill(void)
asm volatile(".inst 0xdac01c00" : : : "x0");
}
+static void f8cvt_sigill(void)
+{
+ /* FSCALE V0.4H, V0.4H, V0.4H */
+ asm volatile(".inst 0x2ec03c00");
+}
+
+static void f8dp2_sigill(void)
+{
+ /* FDOT V0.4H, V0.4H, V0.5H */
+ asm volatile(".inst 0xe40fc00");
+}
+
+static void f8dp4_sigill(void)
+{
+ /* FDOT V0.2S, V0.2S, V0.2S */
+ asm volatile(".inst 0xe00fc00");
+}
+
+static void f8fma_sigill(void)
+{
+ /* FMLALB V0.8H, V0.16B, V0.16B */
+ asm volatile(".inst 0xec0fc00");
+}
+
+static void faminmax_sigill(void)
+{
+ /* FAMIN V0.4H, V0.4H, V0.4H */
+ asm volatile(".inst 0x2ec01c00");
+}
+
static void fp_sigill(void)
{
asm volatile("fmov s0, #1");
}
+static void fpmr_sigill(void)
+{
+ asm volatile("mrs x0, S3_3_C4_C4_2" : : : "x0");
+}
+
static void ilrcpc_sigill(void)
{
/* LDAPUR W0, [SP, #8] */
@@ -95,6 +130,12 @@ static void lse128_sigill(void)
: "cc", "memory");
}
+static void lut_sigill(void)
+{
+ /* LUTI2 V0.16B, { V0.16B }, V[0] */
+ asm volatile(".inst 0x4e801000");
+}
+
static void mops_sigill(void)
{
char dst[1], src[1];
@@ -216,6 +257,78 @@ static void smef16f16_sigill(void)
asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
}
+static void smef8f16_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* FDOT ZA.H[W0, 0], Z0.B-Z1.B, Z0.B-Z1.B */
+ asm volatile(".inst 0xc1a01020" : : : );
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smef8f32_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* FDOT ZA.S[W0, 0], { Z0.B-Z1.B }, Z0.B[0] */
+ asm volatile(".inst 0xc1500038" : : : );
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smelutv2_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* LUTI4 { Z0.B-Z3.B }, ZT0, { Z0-Z1 } */
+ asm volatile(".inst 0xc08b0000" : : : );
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8dp2_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* FDOT Z0.H, Z0.B, Z0.B[0] */
+ asm volatile(".inst 0x64204400" : : : );
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8dp4_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* FDOT Z0.S, Z0.B, Z0.B[0] */
+ asm volatile(".inst 0xc1a41C00" : : : );
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8fma_sigill(void)
+{
+ /* SMSTART */
+ asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+ /* FMLALB V0.8H, V0.16B, V0.16B */
+ asm volatile(".inst 0xec0fc00");
+
+ /* SMSTOP */
+ asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
static void sve_sigill(void)
{
/* RDVL x0, #0 */
@@ -353,6 +466,53 @@ static const struct hwcap_data {
.cpuinfo = "cssc",
.sigill_fn = cssc_sigill,
},
+ {
+ .name = "F8CVT",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8CVT,
+ .cpuinfo = "f8cvt",
+ .sigill_fn = f8cvt_sigill,
+ },
+ {
+ .name = "F8DP4",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8DP4,
+ .cpuinfo = "f8dp4",
+ .sigill_fn = f8dp4_sigill,
+ },
+ {
+ .name = "F8DP2",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8DP2,
+ .cpuinfo = "f8dp4",
+ .sigill_fn = f8dp2_sigill,
+ },
+ {
+ .name = "F8E5M2",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8E5M2,
+ .cpuinfo = "f8e5m2",
+ },
+ {
+ .name = "F8E4M3",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8E4M3,
+ .cpuinfo = "f8e4m3",
+ },
+ {
+ .name = "F8FMA",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_F8FMA,
+ .cpuinfo = "f8fma",
+ .sigill_fn = f8fma_sigill,
+ },
+ {
+ .name = "FAMINMAX",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_FAMINMAX,
+ .cpuinfo = "faminmax",
+ .sigill_fn = faminmax_sigill,
+ },
{
.name = "FP",
.at_hwcap = AT_HWCAP,
@@ -360,6 +520,14 @@ static const struct hwcap_data {
.cpuinfo = "fp",
.sigill_fn = fp_sigill,
},
+ {
+ .name = "FPMR",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_FPMR,
+ .cpuinfo = "fpmr",
+ .sigill_fn = fpmr_sigill,
+ .sigill_reliable = true,
+ },
{
.name = "JSCVT",
.at_hwcap = AT_HWCAP,
@@ -411,6 +579,13 @@ static const struct hwcap_data {
.cpuinfo = "lse128",
.sigill_fn = lse128_sigill,
},
+ {
+ .name = "LUT",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_LUT,
+ .cpuinfo = "lut",
+ .sigill_fn = lut_sigill,
+ },
{
.name = "MOPS",
.at_hwcap = AT_HWCAP2,
@@ -511,6 +686,48 @@ static const struct hwcap_data {
.cpuinfo = "smef16f16",
.sigill_fn = smef16f16_sigill,
},
+ {
+ .name = "SME F8F16",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_F8F16,
+ .cpuinfo = "smef8f16",
+ .sigill_fn = smef8f16_sigill,
+ },
+ {
+ .name = "SME F8F32",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_F8F32,
+ .cpuinfo = "smef8f32",
+ .sigill_fn = smef8f32_sigill,
+ },
+ {
+ .name = "SME LUTV2",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_LUTV2,
+ .cpuinfo = "smelutv2",
+ .sigill_fn = smelutv2_sigill,
+ },
+ {
+ .name = "SME SF8FMA",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_SF8FMA,
+ .cpuinfo = "smesf8fma",
+ .sigill_fn = smesf8fma_sigill,
+ },
+ {
+ .name = "SME SF8DP2",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_SF8DP2,
+ .cpuinfo = "smesf8dp2",
+ .sigill_fn = smesf8dp2_sigill,
+ },
+ {
+ .name = "SME SF8DP4",
+ .at_hwcap = AT_HWCAP2,
+ .hwcap_bit = HWCAP2_SME_SF8DP4,
+ .cpuinfo = "smesf8dp4",
+ .sigill_fn = smesf8dp4_sigill,
+ },
{
.name = "SVE",
.at_hwcap = AT_HWCAP,
--
2.30.2
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