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| author | Mark Brown <broonie@kernel.org> | 2021-08-03 15:04:49 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2021-08-03 16:20:05 +0100 |
| commit | 95cf3f23877b682c56899aa34f9cdd2f910b8924 (patch) | |
| tree | eedfb866a3813be2559042ae2644c9767437f686 /tools/testing/selftests/arm64/fp/Makefile | |
| parent | b43ab36a6d86f6c693f5919ee2cf25c543446213 (diff) | |
| download | linux-stable-95cf3f23877b682c56899aa34f9cdd2f910b8924.tar.gz linux-stable-95cf3f23877b682c56899aa34f9cdd2f910b8924.tar.bz2 linux-stable-95cf3f23877b682c56899aa34f9cdd2f910b8924.zip | |
kselftest/arm64: Add tests for SVE vector configuration
We provide interfaces for configuring the SVE vector length seen by
processes using prctl and also via /proc for configuring the default
values. Provide tests that exercise all these interfaces and verify that
they take effect as expected, though at present no test fully enumerates
all the possible vector lengths.
A subset of this is already tested via sve-probe-vls but the /proc
interfaces are not currently covered at all.
In preparation for the forthcoming support for SME, the Scalable Matrix
Extension, which has separately but similarly configured vector lengths
which we expect to offer similar userspace interfaces for, all the actual
files and prctls used are parameterised and we don't validate that the
architectural minimum vector length is the minimum we see.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Link: https://lore.kernel.org/r/20210803140450.46624-4-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/testing/selftests/arm64/fp/Makefile')
| -rw-r--r-- | tools/testing/selftests/arm64/fp/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile index fa3a0167db2d..f2abdd6ba12e 100644 --- a/tools/testing/selftests/arm64/fp/Makefile +++ b/tools/testing/selftests/arm64/fp/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 CFLAGS += -I../../../../../usr/include/ -TEST_GEN_PROGS := sve-ptrace sve-probe-vls +TEST_GEN_PROGS := sve-ptrace sve-probe-vls vec-syscfg TEST_PROGS_EXTENDED := fpsimd-test fpsimd-stress \ rdvl-sve \ sve-test sve-stress \ @@ -16,6 +16,7 @@ sve-ptrace: sve-ptrace.o sve-ptrace-asm.o sve-probe-vls: sve-probe-vls.o rdvl.o sve-test: sve-test.o $(CC) -nostdlib $^ -o $@ +vec-syscfg: vec-syscfg.o rdvl.o vlset: vlset.o include ../../lib.mk |