* [Buildroot] [PATCH 1/1] arch/Config.in.x86: drop AVX512 from alderlake
@ 2023-07-27 20:36 Vincent Fazio
2023-07-27 21:13 ` Thomas Petazzoni via buildroot
2023-08-30 10:54 ` Peter Korsgaard
0 siblings, 2 replies; 3+ messages in thread
From: Vincent Fazio @ 2023-07-27 20:36 UTC (permalink / raw)
To: buildroot; +Cc: Vincent Fazio
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>
---
arch/Config.in.x86 | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/Config.in.x86 b/arch/Config.in.x86
index 38e486eafd..8ddd1fa994 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"
--
2.34.1
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* Re: [Buildroot] [PATCH 1/1] arch/Config.in.x86: drop AVX512 from alderlake
2023-07-27 20:36 [Buildroot] [PATCH 1/1] arch/Config.in.x86: drop AVX512 from alderlake Vincent Fazio
@ 2023-07-27 21:13 ` Thomas Petazzoni via buildroot
2023-08-30 10:54 ` Peter Korsgaard
1 sibling, 0 replies; 3+ messages in thread
From: Thomas Petazzoni via buildroot @ 2023-07-27 21:13 UTC (permalink / raw)
To: Vincent Fazio; +Cc: buildroot
On Thu, 27 Jul 2023 15:36:52 -0500
Vincent Fazio <vfazio@gmail.com> wrote:
> 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>
> ---
> arch/Config.in.x86 | 1 -
> 1 file changed, 1 deletion(-)
Applied to master, thanks.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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* Re: [Buildroot] [PATCH 1/1] arch/Config.in.x86: drop AVX512 from alderlake
2023-07-27 20:36 [Buildroot] [PATCH 1/1] arch/Config.in.x86: drop AVX512 from alderlake Vincent Fazio
2023-07-27 21:13 ` Thomas Petazzoni via buildroot
@ 2023-08-30 10:54 ` Peter Korsgaard
1 sibling, 0 replies; 3+ messages in thread
From: Peter Korsgaard @ 2023-08-30 10:54 UTC (permalink / raw)
To: Vincent Fazio; +Cc: buildroot
>>>>> "Vincent" == Vincent Fazio <vfazio@gmail.com> writes:
> 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>
Committed to 2023.02.x and 2023.05.x, thanks.
--
Bye, Peter Korsgaard
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2023-07-27 21:13 ` Thomas Petazzoni via buildroot
2023-08-30 10:54 ` Peter Korsgaard
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