linux-kernel - Re: [RFC PATCH 0/15] x86: Remove support for TSC-less and CX8-less CPUs

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Message-ID: <aAp8gyKY1YJqIOXL@gmail.com>
Date: Thu, 24 Apr 2025 20:01:39 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	kernel test robot <oliver.sang@...el.com>, oe-lkp@...ts.linux.dev,
	kernel test robot <lkp@...el.com>, linux-kernel@...r.kernel.org,
	John Stultz <jstultz@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Stephen Boyd <sboyd@...nel.org>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC PATCH 0/15] x86: Remove support for TSC-less and CX8-less
 CPUs


* Ingo Molnar <mingo@...nel.org> wrote:

> The patches most relevant to this discussion should be:
> 
>       x86/cpu: Remove M486/M486SX/ELAN support
>       ...
>       x86/cpu: Remove TSC-less CONFIG_M586 support
>       x86/cpu: Make CONFIG_X86_TSC unconditional
>       x86/cpu: Make CONFIG_X86_CX8 unconditional
>       x86/percpu: Remove !CONFIG_X86_CX8 methods
>       x86/atomics: Remove !CONFIG_X86_CX8 methods

also:

>       x86/cpu: Remove TSC-less CONFIG_M586 support

Thanks,

	Ingo