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>,
Salil Akerkar <Salil.Akerkar@arm.com>,
Basant Kumar Dwivedi <Basant.KumarDwivedi@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 v7 31/37] kselftest/arm64: Extend vector configuration API tests to cover SME
Date: Fri, 10 Dec 2021 18:41:27 +0000 [thread overview]
Message-ID: <20211210184133.320748-32-broonie@kernel.org> (raw)
In-Reply-To: <20211210184133.320748-1-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 | 16 ++++++++++++++++
tools/testing/selftests/arm64/fp/rdvl.h | 1 +
tools/testing/selftests/arm64/fp/vec-syscfg.c | 10 ++++++++++
6 files changed, 44 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 b67395903b9b..885dd592807b 100644
--- a/tools/testing/selftests/arm64/fp/.gitignore
+++ b/tools/testing/selftests/arm64/fp/.gitignore
@@ -1,4 +1,5 @@
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 ba1488c7c315..11d4fc3b7115 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 := fpsimd-test fpsimd-stress \
- rdvl-sve \
+ rdvl-sme rdvl-sve \
sve-test sve-stress \
vlset
@@ -11,6 +11,7 @@ all: $(TEST_GEN_PROGS) $(TEST_PROGS_EXTENDED)
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..a9a028ba1b79 100644
--- a/tools/testing/selftests/arm64/fp/rdvl.S
+++ b/tools/testing/selftests/arm64/fp/rdvl.S
@@ -8,3 +8,19 @@ rdvl_sve:
hint 34 // BTI C
rdvl x0, #1
ret
+
+.globl rdvl_sme
+rdvl_sme:
+ hint 34 // BTI C
+
+ // Enter streaming mode
+ mov x16, #1
+ msr S3_3_C4_C2_2, x16
+
+ rdvl x0, #1
+
+ // Leave streaming mode
+ mov x16, #0
+ msr S3_3_C4_C2_2, x16
+
+ 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 272b888e018e..0b976eb1c1d1 100644
--- a/tools/testing/selftests/arm64/fp/vec-syscfg.c
+++ b/tools/testing/selftests/arm64/fp/vec-syscfg.c
@@ -53,6 +53,16 @@ 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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next prev parent reply other threads:[~2021-12-10 19:12 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-10 18:40 [PATCH v7 00/37] arm64/sme: Initial support for the Scalable Matrix Extension Mark Brown
2021-12-10 18:40 ` [PATCH v7 01/37] arm64/sve: Make sysctl interface for SVE reusable by SME Mark Brown
2021-12-10 18:40 ` [PATCH v7 02/37] arm64/sve: Generalise vector length configuration prctl() for SME Mark Brown
2021-12-10 18:40 ` [PATCH v7 03/37] arm64/sve: Minor clarification of ABI documentation Mark Brown
2021-12-10 18:41 ` [PATCH v7 04/37] kselftest/arm64: Parameterise ptrace vector length information Mark Brown
2021-12-10 18:41 ` [PATCH v7 05/37] kselftest/arm64: Allow signal tests to trigger from a function Mark Brown
2021-12-10 18:41 ` [PATCH v7 06/37] kselftest/arm64: Add a test program to exercise the syscall ABI Mark Brown
2021-12-10 18:41 ` [PATCH v7 07/37] arm64: cpufeature: Always specify and use a field width for capabilities Mark Brown
2021-12-10 18:41 ` [PATCH v7 08/37] tools/nolibc: Implement gettid() Mark Brown
2021-12-10 18:41 ` [PATCH v7 09/37] arm64/sme: Provide ABI documentation for SME Mark Brown
2021-12-10 18:41 ` [PATCH v7 10/37] arm64/sme: System register and exception syndrome definitions Mark Brown
2021-12-10 18:41 ` [PATCH v7 11/37] arm64/sme: Define macros for manually encoding SME instructions Mark Brown
2021-12-10 18:41 ` [PATCH v7 12/37] arm64/sme: Early CPU setup for SME Mark Brown
2021-12-10 18:41 ` [PATCH v7 13/37] arm64/sme: Basic enumeration support Mark Brown
2021-12-10 18:41 ` [PATCH v7 14/37] arm64/sme: Identify supported SME vector lengths at boot Mark Brown
2021-12-10 18:41 ` [PATCH v7 15/37] arm64/sme: Implement sysctl to set the default vector length Mark Brown
2021-12-10 18:41 ` [PATCH v7 16/37] arm64/sme: Implement vector length configuration prctl()s Mark Brown
2021-12-10 18:41 ` [PATCH v7 17/37] arm64/sme: Implement support for TPIDR2 Mark Brown
2021-12-10 18:41 ` [PATCH v7 18/37] arm64/sme: Implement SVCR context switching Mark Brown
2021-12-10 18:41 ` [PATCH v7 19/37] arm64/sme: Implement streaming SVE " Mark Brown
2021-12-10 18:41 ` [PATCH v7 20/37] arm64/sme: Implement ZA " Mark Brown
2021-12-10 18:41 ` [PATCH v7 21/37] arm64/sme: Implement traps and syscall handling for SME Mark Brown
2021-12-10 18:41 ` [PATCH v7 22/37] arm64/sme: Implement streaming SVE signal handling Mark Brown
2021-12-10 18:41 ` [PATCH v7 23/37] arm64/sme: Implement ZA " Mark Brown
2021-12-10 18:41 ` [PATCH v7 24/37] arm64/sme: Implement ptrace support for streaming mode SVE registers Mark Brown
2021-12-10 18:41 ` [PATCH v7 25/37] arm64/sme: Add ptrace support for ZA Mark Brown
2021-12-10 18:41 ` [PATCH v7 26/37] arm64/sme: Disable streaming mode and ZA when flushing CPU state Mark Brown
2021-12-10 18:41 ` [PATCH v7 27/37] arm64/sme: Save and restore streaming mode over EFI runtime calls Mark Brown
2021-12-10 18:41 ` [PATCH v7 28/37] arm64/sme: Provide Kconfig for SME Mark Brown
2021-12-10 18:41 ` [PATCH v7 29/37] kselftest/arm64: sme: Add streaming SME support to vlset Mark Brown
2021-12-10 18:41 ` [PATCH v7 30/37] kselftest/arm64: Add tests for TPIDR2 Mark Brown
2021-12-10 18:41 ` Mark Brown [this message]
2021-12-10 18:41 ` [PATCH v7 32/37] kselftest/arm64: sme: Provide streaming mode SVE stress test Mark Brown
2021-12-10 18:41 ` [PATCH v7 33/37] kselftest/arm64: Add stress test for SME ZA context switching Mark Brown
2021-12-10 18:41 ` [PATCH v7 34/37] kselftest/arm64: signal: Add SME signal handling tests Mark Brown
2021-12-10 18:41 ` [PATCH v7 35/37] kselftest/arm64: Add streaming SVE to SVE ptrace tests Mark Brown
2021-12-10 18:41 ` [PATCH v7 36/37] kselftest/arm64: Add coverage for the ZA ptrace interface Mark Brown
2021-12-10 18:41 ` [PATCH v7 37/37] kselftest/arm64: Add SME support to syscall ABI test Mark Brown
2021-12-14 19:17 ` (subset) [PATCH v7 00/37] arm64/sme: Initial support for the Scalable Matrix Extension Catalin Marinas
2021-12-14 19:18 ` Catalin Marinas
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