From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Shuah Khan <shuah@kernel.org>
Cc: Alan Hayward <alan.hayward@arm.com>,
Luis Machado <luis.machado@arm.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH v3 21/21] kselftest/arm64: Add coverage of SME 2 and 2.1 hwcaps
Date: Fri, 11 Nov 2022 21:50:26 +0000 [thread overview]
Message-ID: <20221111215026.813348-22-broonie@kernel.org> (raw)
In-Reply-To: <20221111215026.813348-1-broonie@kernel.org>
Add the hwcaps defined by SME 2 and 2.1 to the hwcaps test.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
tools/testing/selftests/arm64/abi/hwcap.c | 115 ++++++++++++++++++++++
1 file changed, 115 insertions(+)
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
index 9f255bc5f31c..832bb10d282c 100644
--- a/tools/testing/selftests/arm64/abi/hwcap.c
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -50,6 +50,78 @@ static void sme_sigill(void)
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 SM */
+ asm volatile("msr S0_3_C4_C3_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 SM */
+ asm volatile("msr S0_3_C4_C3_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 SM */
+ asm volatile("msr S0_3_C4_C3_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 SM */
+ asm volatile("msr S0_3_C4_C3_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)
{
/* RDVL x0, #0 */
@@ -158,6 +230,49 @@ static const struct hwcap_data {
.sigill_fn = sme_sigill,
.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",
.at_hwcap = AT_HWCAP,
--
2.30.2
prev parent reply other threads:[~2022-11-11 21:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-11 21:50 [PATCH v3 00/21] arm64/sme: Support SME 2 and SME 2.1 Mark Brown
2022-11-11 21:50 ` [PATCH v3 01/21] arm64/sme: Rename za_state to sme_state Mark Brown
2022-11-11 21:50 ` [PATCH v3 02/21] arm64: Document boot requirements for SME 2 Mark Brown
2022-11-11 21:50 ` [PATCH v3 03/21] arm64/sysreg: Update system registers for SME 2 and 2.1 Mark Brown
2022-11-11 21:50 ` [PATCH v3 04/21] arm64/sme: Document SME 2 and SME 2.1 ABI Mark Brown
2022-11-11 21:50 ` [PATCH v3 05/21] arm64/esr: Document ISS for ZT0 being disabled Mark Brown
2022-11-11 21:50 ` [PATCH v3 06/21] arm64/sme: Manually encode ZT0 load and store instructions Mark Brown
2022-12-17 9:40 ` Zenghui Yu
2022-12-19 15:04 ` Mark Brown
2022-11-11 21:50 ` [PATCH v3 07/21] arm64/sme: Enable host kernel to access ZT0 Mark Brown
2022-11-11 21:50 ` [PATCH v3 08/21] arm64/sme: Add basic enumeration for SME2 Mark Brown
2022-11-11 21:50 ` [PATCH v3 09/21] arm64/sme: Provide storage for ZT0 Mark Brown
2022-12-17 9:28 ` Zenghui Yu
2022-11-11 21:50 ` [PATCH v3 10/21] arm64/sme: Implement context switching " Mark Brown
2022-11-11 21:50 ` [PATCH v3 11/21] arm64/sme: Implement signal handling for ZT Mark Brown
2022-11-11 21:50 ` [PATCH v3 12/21] arm64/sme: Implement ZT0 ptrace support Mark Brown
2022-12-17 9:23 ` Zenghui Yu
2022-11-11 21:50 ` [PATCH v3 13/21] arm64/sme: Add hwcaps for SME 2 and 2.1 features Mark Brown
2022-12-19 8:22 ` Zenghui Yu
2022-11-11 21:50 ` [PATCH v3 14/21] kselftest/arm64: Add a stress test program for ZT0 Mark Brown
2022-12-17 9:15 ` Zenghui Yu
2022-11-11 21:50 ` [PATCH v3 15/21] kselftest/arm64: Cover ZT in the FP stress test Mark Brown
2022-11-11 21:50 ` [PATCH v3 16/21] kselftest/arm64: Enumerate SME2 in the signal test utility code Mark Brown
2022-11-11 21:50 ` [PATCH v3 17/21] kselftest/arm64: Teach the generic signal context validation about ZT Mark Brown
2022-11-11 21:50 ` [PATCH v3 18/21] kselftest/arm64: Add test coverage for ZT register signal frames Mark Brown
2022-11-11 21:50 ` [PATCH v3 19/21] kselftest/arm64: Add SME2 coverage to syscall-abi Mark Brown
2022-11-11 21:50 ` [PATCH v3 20/21] kselftest/arm64: Add coverage of the ZT ptrace regset Mark Brown
2022-11-11 21:50 ` Mark Brown [this message]
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