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* [Buildroot] [git commit branch/2023.05.x] arch/Config.in.x86: drop AVX512 from alderlake
@ 2023-08-30 10:53 Peter Korsgaard
  0 siblings, 0 replies; only message in thread
From: Peter Korsgaard @ 2023-08-30 10:53 UTC (permalink / raw)
  To: buildroot

commit: https://git.buildroot.net/buildroot/commit/?id=e57158821e4225bdef7dc265a0843147e5b3632c
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2023.05.x

Alder Lake CPUs have AVX512 support disabled [0].

To prevent potential issues, remove the AVX512 support advertisement.

This puts Buildroot inline with the GCC options [1].

[0]: https://www.intel.com/content/www/us/en/support/articles/000089918/processors.html
[1]: https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html

Fixes: e7b94130 ("arch/Config.in.x86: add sapphirerapids, alderlake, rocketlake")
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit f82a65b15b1805b9cbde0220e68e0267d0dbdb2b)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 arch/Config.in.x86 | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/Config.in.x86 b/arch/Config.in.x86
index c770ae3ffe..56ce1eb0cc 100644
--- a/arch/Config.in.x86
+++ b/arch/Config.in.x86
@@ -450,7 +450,6 @@ config BR2_x86_alderlake
 	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_11
 config BR2_x86_rocketlake
 	bool "rocketlake"
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2023-08-30 10:53 [Buildroot] [git commit branch/2023.05.x] arch/Config.in.x86: drop AVX512 from alderlake Peter Korsgaard

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