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author | Dave Martin <Dave.Martin@arm.com> | 2018-06-01 13:10:13 +0300 |
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committer | Catalin Marinas <catalin.marinas@arm.com> | 2018-06-01 17:53:07 +0300 |
commit | 87c021a8143b6133e0085a8162f2a127462b54a3 (patch) | |
tree | 63cf1f0255bc65b88b28614be8465c81e6598090 /arch/arm64/include/asm/processor.h | |
parent | cb877710e58f7266215fbf2d51516c9fc6993019 (diff) | |
download | linux-87c021a8143b6133e0085a8162f2a127462b54a3.tar.xz |
arm64/sve: Thin out initialisation sanity-checks for sve_max_vl
Now that the kernel SVE support is reasonably mature, it is
excessive to default sve_max_vl to the invalid value -1 and then
sprinkle WARN_ON()s around the place to make sure it has been
initialised before use. The cpufeatures code already runs pretty
early, and will ensure sve_max_vl gets initialised.
This patch initialises sve_max_vl to something sane that will be
supported by every SVE implementation, and removes most of the
sanity checks.
The checks in find_supported_vector_length() are retained for now.
If anything goes horribly wrong, we are likely to trip a check here
sooner or later.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
0 files changed, 0 insertions, 0 deletions