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From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Marc Zyngier <maz@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>,
	Salil Akerkar <Salil.Akerkar@arm.com>,
	Basant Kumar Dwivedi <Basant.KumarDwivedi@arm.com>,
	Szabolcs Nagy <szabolcs.nagy@arm.com>,
	James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
	Mark Brown <broonie@kernel.org>
Subject: [PATCH v8 30/38] kselftest/arm64: Extend vector configuration API tests to cover SME
Date: Tue, 25 Jan 2022 00:11:06 +0000	[thread overview]
Message-ID: <20220125001114.193425-31-broonie@kernel.org> (raw)
In-Reply-To: <20220125001114.193425-1-broonie@kernel.org>

Provide RDVL helpers for SME and extend the main vector configuration tests
to cover SME.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 tools/testing/selftests/arm64/fp/.gitignore   |  1 +
 tools/testing/selftests/arm64/fp/Makefile     |  3 ++-
 tools/testing/selftests/arm64/fp/rdvl-sme.c   | 14 ++++++++++++++
 tools/testing/selftests/arm64/fp/rdvl.S       |  8 ++++++++
 tools/testing/selftests/arm64/fp/rdvl.h       |  1 +
 tools/testing/selftests/arm64/fp/vec-syscfg.c | 10 ++++++++++
 6 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sme.c

diff --git a/tools/testing/selftests/arm64/fp/.gitignore b/tools/testing/selftests/arm64/fp/.gitignore
index c50d86331ed2..6e9a610c5e5d 100644
--- a/tools/testing/selftests/arm64/fp/.gitignore
+++ b/tools/testing/selftests/arm64/fp/.gitignore
@@ -1,5 +1,6 @@
 fp-pidbench
 fpsimd-test
+rdvl-sme
 rdvl-sve
 sve-probe-vls
 sve-ptrace
diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile
index 95f0b877a060..a224fff8082b 100644
--- a/tools/testing/selftests/arm64/fp/Makefile
+++ b/tools/testing/selftests/arm64/fp/Makefile
@@ -3,7 +3,7 @@
 CFLAGS += -I../../../../../usr/include/
 TEST_GEN_PROGS := sve-ptrace sve-probe-vls vec-syscfg
 TEST_PROGS_EXTENDED := fp-pidbench fpsimd-test fpsimd-stress \
-	rdvl-sve \
+	rdvl-sme rdvl-sve \
 	sve-test sve-stress \
 	vlset
 
@@ -13,6 +13,7 @@ fp-pidbench: fp-pidbench.S asm-utils.o
 	$(CC) -nostdlib $^ -o $@
 fpsimd-test: fpsimd-test.o asm-utils.o
 	$(CC) -nostdlib $^ -o $@
+rdvl-sme: rdvl-sme.o rdvl.o
 rdvl-sve: rdvl-sve.o rdvl.o
 sve-ptrace: sve-ptrace.o
 sve-probe-vls: sve-probe-vls.o rdvl.o
diff --git a/tools/testing/selftests/arm64/fp/rdvl-sme.c b/tools/testing/selftests/arm64/fp/rdvl-sme.c
new file mode 100644
index 000000000000..49b0b2e08bac
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/rdvl-sme.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <stdio.h>
+
+#include "rdvl.h"
+
+int main(void)
+{
+	int vl = rdvl_sme();
+
+	printf("%d\n", vl);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/fp/rdvl.S b/tools/testing/selftests/arm64/fp/rdvl.S
index c916c1c9defd..1a2ebf07a20c 100644
--- a/tools/testing/selftests/arm64/fp/rdvl.S
+++ b/tools/testing/selftests/arm64/fp/rdvl.S
@@ -8,3 +8,11 @@ rdvl_sve:
 	hint	34			// BTI C
 	rdvl	x0, #1
 	ret
+
+.globl rdvl_sme
+rdvl_sme:
+	hint	34			// BTI C
+
+	.inst	0x4bf5820		// RDSVL x0, #1
+
+	ret
diff --git a/tools/testing/selftests/arm64/fp/rdvl.h b/tools/testing/selftests/arm64/fp/rdvl.h
index 7c9d953fc9e7..5d323679fbc9 100644
--- a/tools/testing/selftests/arm64/fp/rdvl.h
+++ b/tools/testing/selftests/arm64/fp/rdvl.h
@@ -3,6 +3,7 @@
 #ifndef RDVL_H
 #define RDVL_H
 
+int rdvl_sme(void);
 int rdvl_sve(void);
 
 #endif
diff --git a/tools/testing/selftests/arm64/fp/vec-syscfg.c b/tools/testing/selftests/arm64/fp/vec-syscfg.c
index c90658811a83..9bcfcdc34ee9 100644
--- a/tools/testing/selftests/arm64/fp/vec-syscfg.c
+++ b/tools/testing/selftests/arm64/fp/vec-syscfg.c
@@ -51,6 +51,16 @@ static struct vec_data vec_data[] = {
 		.prctl_set = PR_SVE_SET_VL,
 		.default_vl_file = "/proc/sys/abi/sve_default_vector_length",
 	},
+	{
+		.name = "SME",
+		.hwcap_type = AT_HWCAP2,
+		.hwcap = HWCAP2_SME,
+		.rdvl = rdvl_sme,
+		.rdvl_binary = "./rdvl-sme",
+		.prctl_get = PR_SME_GET_VL,
+		.prctl_set = PR_SME_SET_VL,
+		.default_vl_file = "/proc/sys/abi/sme_default_vector_length",
+	},
 };
 
 static int stdio_read_integer(FILE *f, const char *what, int *val)
-- 
2.30.2


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  parent reply	other threads:[~2022-01-25  0:39 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25  0:10 [PATCH v8 00/38] arm64/sme: Initial support for the Scalable Matrix Extension Mark Brown
2022-01-25  0:10 ` [PATCH v8 01/38] arm64: cpufeature: Always specify and use a field width for capabilities Mark Brown
2022-01-25 10:57   ` Suzuki K Poulose
2022-01-25 12:10     ` Mark Brown
2022-01-25  0:10 ` [PATCH v8 02/38] arm64: Add feature detection for fine grained traps Mark Brown
2022-01-25  0:10 ` [PATCH v8 03/38] kselftest/arm64: Remove local ARRAY_SIZE() definitions Mark Brown
2022-01-25  0:10 ` [PATCH v8 04/38] arm64/sme: Provide ABI documentation for SME Mark Brown
2022-01-25  0:10 ` [PATCH v8 05/38] arm64/sme: System register and exception syndrome definitions Mark Brown
2022-01-25 11:25   ` Marc Zyngier
2022-01-25 12:15     ` Mark Brown
2022-01-25  0:10 ` [PATCH v8 06/38] arm64/sme: Manually encode SME instructions Mark Brown
2022-01-25  0:10 ` [PATCH v8 07/38] arm64/sme: Early CPU setup for SME Mark Brown
2022-01-25  0:10 ` [PATCH v8 08/38] arm64/sme: Basic enumeration support Mark Brown
2022-01-25  0:10 ` [PATCH v8 09/38] arm64/sme: Identify supported SME vector lengths at boot Mark Brown
2022-01-25  0:10 ` [PATCH v8 10/38] arm64/sme: Implement sysctl to set the default vector length Mark Brown
2022-01-25  0:10 ` [PATCH v8 11/38] arm64/sme: Implement vector length configuration prctl()s Mark Brown
2022-01-25  0:10 ` [PATCH v8 12/38] arm64/sme: Implement support for TPIDR2 Mark Brown
2022-01-25  0:10 ` [PATCH v8 13/38] arm64/sme: Implement SVCR context switching Mark Brown
2022-01-25  0:10 ` [PATCH v8 14/38] arm64/sme: Implement streaming SVE " Mark Brown
2022-01-25  0:10 ` [PATCH v8 15/38] arm64/sme: Implement ZA " Mark Brown
2022-01-25  0:10 ` [PATCH v8 16/38] arm64/sme: Implement traps and syscall handling for SME Mark Brown
2022-01-25  0:10 ` [PATCH v8 17/38] arm64/sme: Disable ZA and streaming mode when handling signals Mark Brown
2022-01-25  0:10 ` [PATCH v8 18/38] arm64/sme: Implement streaming SVE signal handling Mark Brown
2022-01-25  0:10 ` [PATCH v8 19/38] arm64/sme: Implement ZA " Mark Brown
2022-01-25  0:10 ` [PATCH v8 20/38] arm64/sme: Implement ptrace support for streaming mode SVE registers Mark Brown
2022-01-25  0:10 ` [PATCH v8 21/38] arm64/sme: Add ptrace support for ZA Mark Brown
2022-01-25  0:10 ` [PATCH v8 22/38] arm64/sme: Disable streaming mode and ZA when flushing CPU state Mark Brown
2022-01-25  0:10 ` [PATCH v8 23/38] arm64/sme: Save and restore streaming mode over EFI runtime calls Mark Brown
2022-01-25  0:11 ` [PATCH v8 24/38] KVM: arm64: Hide SME system registers from guests Mark Brown
2022-01-25  0:11 ` [PATCH v8 25/38] KVM: arm64: Trap SME usage in guest Mark Brown
2022-01-25 11:27   ` Marc Zyngier
2022-01-25 12:25     ` Mark Brown
2022-01-25 13:21       ` Marc Zyngier
2022-01-25 14:25         ` Mark Brown
2022-01-25  0:11 ` [PATCH v8 26/38] KVM: arm64: Handle SME host state when running guests Mark Brown
2022-01-25 11:59   ` Marc Zyngier
2022-01-25 12:52     ` Mark Brown
2022-01-25 13:22       ` Marc Zyngier
2022-01-25 13:34         ` Mark Brown
2022-01-25  0:11 ` [PATCH v8 27/38] arm64/sme: Provide Kconfig for SME Mark Brown
2022-01-25  0:11 ` [PATCH v8 28/38] kselftest/arm64: sme: Add streaming SME support to vlset Mark Brown
2022-01-25  0:11 ` [PATCH v8 29/38] kselftest/arm64: Add tests for TPIDR2 Mark Brown
2022-01-25  0:11 ` Mark Brown [this message]
2022-01-25  0:11 ` [PATCH v8 31/38] kselftest/arm64: sme: Provide streaming mode SVE stress test Mark Brown
2022-01-25  0:11 ` [PATCH v8 32/38] kselftest/arm64: signal: Allow tests to be incompatible with features Mark Brown
2022-01-25  0:11 ` [PATCH v8 33/38] kselftest/arm64: signal: Handle ZA signal context in core code Mark Brown
2022-01-25  0:11 ` [PATCH v8 34/38] kselftest/arm64: Add stress test for SME ZA context switching Mark Brown
2022-01-25  0:11 ` [PATCH v8 35/38] kselftest/arm64: signal: Add SME signal handling tests Mark Brown
2022-01-25  0:11 ` [PATCH v8 36/38] kselftest/arm64: Add streaming SVE to SVE ptrace tests Mark Brown
2022-01-25  0:11 ` [PATCH v8 37/38] kselftest/arm64: Add coverage for the ZA ptrace interface Mark Brown
2022-01-25  0:11 ` [PATCH v8 38/38] kselftest/arm64: Add SME support to syscall ABI test Mark Brown

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