linux-kernel - [PATCH] x86/Kconfig: Transmeta Crusoe is cpu family 5, not 6

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Date: Tue, 23 Jan 2024 14:43:00 +0100
From: Aleksander Mazur <deweloper@...pl>
To: Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Matthew Whitehead <tedheadster@...il.com>
Cc: Aleksander Mazur <deweloper@...pl>,
	Ingo Molnar <mingo@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] x86/Kconfig: Transmeta Crusoe is cpu family 5, not 6

The kernel built with MCRUSOE is unbootable on Transmeta Crusoe.
It shows following error message:

> This kernel requires an i686 CPU, but only detected an i586 CPU.
> Unable to boot - please use a kernel appropriate for your CPU.

Fix this by removing MCRUSOE from condition introduced in 25d76ac88821,
effectively changing X86_MINIMUM_CPU_FAMILY back to 5, what matches CPU
family given by CPUID.

Tested on HP t5300.

Fixes: 25d76ac88821 ("x86/Kconfig: Explicitly enumerate i686-class CPUs in Kconfig")
Acked-by: H. Peter Anvin <hpa@...or.com>
Signed-off-by: Aleksander Mazur <deweloper@...pl>
---
 arch/x86/Kconfig.cpu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index b9224cf2ee4d..2a7279d80460 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -379,7 +379,7 @@ config X86_CMOV
 config X86_MINIMUM_CPU_FAMILY
 	int
 	default "64" if X86_64
-	default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCRUSOE || MCORE2 || MK7 || MK8)
+	default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCORE2 || MK7 || MK8)
 	default "5" if X86_32 && X86_CMPXCHG64
 	default "4"
 
-- 
2.43.0