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| author | Mark Brown <broonie@kernel.org> | 2022-08-29 16:48:15 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2022-09-06 18:53:52 +0100 |
| commit | 81ff692ad924da2233381bedff90c5c1f5c31368 (patch) | |
| tree | 87b4ebedbeb97cda17ed4ad288d743bab98aed0c /arch/arm64/kernel/cpuinfo.c | |
| parent | b90cb1053190353cc30f0fef0ef1f378ccc063c5 (diff) | |
| download | linux-81ff692ad924da2233381bedff90c5c1f5c31368.tar.bz2 | |
arm64/sysreg: Add hwcap for SVE EBF16
SVE has a separate identification register indicating support for BFloat16
operations. Add a hwcap identifying support for EBF16 in this register,
mirroring what we did for the non-SVE case.
While there is currently an architectural requirement for BF16 support to
be the same in SVE and non-SVE contexts there are separate identification
registers this separate hwcap helps avoid issues if that requirement were
to be relaxed in the future, we have already chosen to have a separate
capability for base BF16 support.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220829154815.832347-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/cpuinfo.c')
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index d7702f39b4d3..28d4f442b0bc 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -115,6 +115,7 @@ static const char *const hwcap_str[] = { [KERNEL_HWCAP_SME_FA64] = "smefa64", [KERNEL_HWCAP_WFXT] = "wfxt", [KERNEL_HWCAP_EBF16] = "ebf16", + [KERNEL_HWCAP_SVE_EBF16] = "sveebf16", }; #ifdef CONFIG_COMPAT |