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arch/Config.in.x86: add skylake CPU variants

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Both skylake and skylake-avx512 were added in gcc 6.x. According to
https://en.wikipedia.org/wiki/Skylake_(microarchitecture) the early
Skylake processors indeed did not have AVX512 support, while the later
ones did, hence the separate gcc options.

Due to this being the first CPU we support with AVX512, this commit
adds BR2_X86_CPU_HAS_AVX512.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2022-01-25 00:01:06 +01:00 committed by Yann E. MORIN
parent 3702977799
commit 4c0088718e
1 changed files with 29 additions and 0 deletions
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29
arch/Config.in.x86
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@ -19,6 +19,8 @@ config BR2_X86_CPU_HAS_AVX
bool
config BR2_X86_CPU_HAS_AVX2
bool
config BR2_X86_CPU_HAS_AVX512
bool
choice
prompt "Target Architecture Variant"
@ -259,6 +261,18 @@ config BR2_x86_broadwell
select BR2_X86_CPU_HAS_AVX
select BR2_X86_CPU_HAS_AVX2
select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
config BR2_x86_skylake
bool "skylake"
select BR2_X86_CPU_HAS_MMX
select BR2_X86_CPU_HAS_SSE
select BR2_X86_CPU_HAS_SSE2
select BR2_X86_CPU_HAS_SSE3
select BR2_X86_CPU_HAS_SSSE3
select BR2_X86_CPU_HAS_SSE4
select BR2_X86_CPU_HAS_SSE42
select BR2_X86_CPU_HAS_AVX
select BR2_X86_CPU_HAS_AVX2
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_x86_atom
bool "atom"
select BR2_X86_CPU_HAS_MMX
@ -287,6 +301,19 @@ config BR2_x86_silvermont
select BR2_X86_CPU_HAS_SSE4
select BR2_X86_CPU_HAS_SSE42
select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
config BR2_x86_skylake_avx512
bool "skylake-avx512"
select BR2_X86_CPU_HAS_MMX
select BR2_X86_CPU_HAS_SSE
select BR2_X86_CPU_HAS_SSE2
select BR2_X86_CPU_HAS_SSE3
select BR2_X86_CPU_HAS_SSSE3
select BR2_X86_CPU_HAS_SSE4
select BR2_X86_CPU_HAS_SSE42
select BR2_X86_CPU_HAS_AVX
select BR2_X86_CPU_HAS_AVX2
select BR2_X86_CPU_HAS_AVX512
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_x86_k6
bool "k6"
depends on !BR2_x86_64
@ -414,10 +441,12 @@ config BR2_GCC_TARGET_ARCH
default "core-avx2" if BR2_x86_core_avx2
default "haswell" if BR2_x86_haswell
default "broadwell" if BR2_x86_broadwell
default "skylake" if BR2_x86_skylake
default "atom" if BR2_x86_atom
default "bonnel" if BR2_x86_bonnel
default "westmere" if BR2_x86_westmere
default "silvermont" if BR2_x86_silvermont
default "skylake-avx512" if BR2_x86_skylake_avx512
default "k8" if BR2_x86_opteron
default "k8-sse3" if BR2_x86_opteron_sse3
default "barcelona" if BR2_x86_barcelona