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From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	"Ahmed S . Darwish" <darwi@linutronix.de>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ard Biesheuvel <ardb@kernel.org>, Arnd Bergmann <arnd@kernel.org>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H . Peter Anvin" <hpa@zytor.com>,
	John Ogness <john.ogness@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 03/15] x86/cpu: Remove CPU_SUP_UMC_32 support
Date: Fri, 25 Apr 2025 10:42:00 +0200	[thread overview]
Message-ID: <20250425084216.3913608-4-mingo@kernel.org> (raw)
In-Reply-To: <20250425084216.3913608-1-mingo@kernel.org>

These are 486 based CPUs.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig.cpu      | 14 --------------
 arch/x86/kernel/cpu/umc.c | 26 --------------------------
 2 files changed, 40 deletions(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index f656033b3a8a..df586ff2178f 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -376,20 +376,6 @@ config CPU_SUP_TRANSMETA_32
 
 	  If unsure, say N.
 
-config CPU_SUP_UMC_32
-	default y
-	bool "Support UMC processors" if PROCESSOR_SELECT
-	depends on M486SX || M486 || (EXPERT && !64BIT)
-	help
-	  This enables detection, tunings and quirks for UMC processors
-
-	  You need this enabled if you want your kernel to run on a
-	  UMC CPU. Disabling this option on other types of CPUs
-	  makes the kernel a tiny bit smaller. Disabling it on a UMC
-	  CPU might render the kernel unbootable.
-
-	  If unsure, say N.
-
 config CPU_SUP_ZHAOXIN
 	default y
 	bool "Support Zhaoxin processors" if PROCESSOR_SELECT
diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c
deleted file mode 100644
index 65a58a390fc3..000000000000
--- a/arch/x86/kernel/cpu/umc.c
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/kernel.h>
-#include <asm/processor.h>
-#include "cpu.h"
-
-/*
- * UMC chips appear to be only either 386 or 486,
- * so no special init takes place.
- */
-
-static const struct cpu_dev umc_cpu_dev = {
-	.c_vendor	= "UMC",
-	.c_ident	= { "UMC UMC UMC" },
-	.legacy_models	= {
-		{ .family = 4, .model_names =
-		  {
-			  [1] = "U5D",
-			  [2] = "U5S",
-		  }
-		},
-	},
-	.c_x86_vendor	= X86_VENDOR_UMC,
-};
-
-cpu_dev_register(umc_cpu_dev);
-
-- 
2.45.2


  parent reply	other threads:[~2025-04-25  8:42 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-25  8:41 [RFC PATCH 0/15] x86: Remove support for TSC-less and CX8-less CPUs Ingo Molnar
2025-04-25  8:41 ` [PATCH 01/15] x86/cpu: Remove M486/M486SX/ELAN support Ingo Molnar
2025-04-25  8:41 ` [PATCH 02/15] x86/cpu: Remove CONFIG_MWINCHIP3D/MWINCHIPC6 Ingo Molnar
2025-04-25  8:42 ` Ingo Molnar [this message]
2025-04-25  8:42 ` [PATCH 04/15] x86/cpu: Remove TSC-less CONFIG_M586 support Ingo Molnar
2025-04-25 15:09   ` H. Peter Anvin
2025-04-25  8:42 ` [PATCH 05/15] x86/cpu, x86/platform, watchdog: Remove CONFIG_X86_RDC321X support Ingo Molnar
2025-04-25  8:42 ` [PATCH 06/15] x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk Ingo Molnar
2025-04-25  8:42 ` [PATCH 07/15] x86/cpu, cpufreq: Remove AMD ELAN support Ingo Molnar
2025-04-25  8:42 ` [PATCH 08/15] x86/fpu: Remove MATH_EMULATION and related glue code Ingo Molnar
2025-04-25  8:42 ` [PATCH 09/15] x86/fpu: Remove the 'no387' boot option Ingo Molnar
2025-04-25  8:42 ` [PATCH 10/15] x86/fpu: Remove the math-emu/ FPU emulation library Ingo Molnar
2025-04-25  8:42 ` [PATCH 11/15] x86/cpu: Make CONFIG_X86_TSC unconditional Ingo Molnar
2025-04-25  8:42 ` [PATCH 12/15] x86: Remove !CONFIG_X86_TSC code Ingo Molnar
2025-04-25  8:42 ` [PATCH 13/15] x86/cpu: Make CONFIG_X86_CX8 unconditional Ingo Molnar
2025-04-25 12:10   ` Arnd Bergmann
2025-04-25 15:15     ` H. Peter Anvin
2025-04-25 21:54       ` Arnd Bergmann
2025-04-27  9:25         ` Ingo Molnar
2025-04-27 17:32           ` Arnd Bergmann
2025-04-27 21:26             ` H. Peter Anvin
2025-04-28  9:16             ` Ingo Molnar
2025-04-28 11:21               ` Arnd Bergmann
2025-04-29 10:22                 ` Ingo Molnar
2025-04-29 12:10                   ` Arnd Bergmann
2025-04-27  8:15     ` Ingo Molnar
2025-04-25  8:42 ` [PATCH 14/15] x86/percpu: Remove !CONFIG_X86_CX8 methods Ingo Molnar
2025-04-25 14:05   ` Uros Bizjak
2025-04-27  7:46     ` [PATCH -v2 " Ingo Molnar
2025-04-25  8:42 ` [PATCH 15/15] x86/atomics: " Ingo Molnar
2025-04-25 13:55   ` Arnd Bergmann
2025-04-25 14:10   ` Uros Bizjak
2025-04-25 15:00     ` Brian Gerst
2025-04-27  8:23       ` Ingo Molnar
2025-04-27  8:26     ` Ingo Molnar
2025-04-27 10:31       ` Uros Bizjak
2025-05-15  8:49         ` Ingo Molnar
2025-04-25 11:13 ` [RFC PATCH 0/15] x86: Remove support for TSC-less and CX8-less CPUs Arnd Bergmann
2025-04-26  8:26 ` Pavel Machek
2025-05-05  8:53 ` Maciej W. Rozycki
2025-05-05 12:48   ` H. Peter Anvin
2025-05-05 13:04     ` Maciej W. Rozycki
2025-05-05 19:57       ` H. Peter Anvin
2025-05-05 20:54         ` Borislav Petkov
2025-05-06 13:51           ` Maciej W. Rozycki
2025-05-06 14:16             ` Borislav Petkov
2025-05-08 14:51               ` Maciej W. Rozycki
2025-05-08 20:11                 ` Borislav Petkov
2025-05-12 12:55                   ` Maciej W. Rozycki
2025-05-12 13:48                     ` Borislav Petkov
2025-05-12 17:29                       ` Maciej W. Rozycki
2025-05-13  2:00                         ` Linus Torvalds
2025-05-13  3:48                           ` H. Peter Anvin
2025-05-13  5:43                           ` John Paul Adrian Glaubitz
2025-05-13 21:55                             ` Maciej W. Rozycki
2025-05-13 22:02                               ` Linus Torvalds
2025-05-13 22:06                                 ` H. Peter Anvin
2025-05-15 16:32                                 ` Maciej W. Rozycki
2025-05-06 13:48         ` Maciej W. Rozycki
2025-05-06 13:54           ` John Paul Adrian Glaubitz
2025-05-05 15:59   ` Linus Torvalds
2025-05-06 13:53     ` Maciej W. Rozycki
2025-05-06 16:44       ` H. Peter Anvin
2025-05-06 17:11         ` Linus Torvalds
2025-05-06 17:51           ` H. Peter Anvin
2025-05-08 14:54             ` Maciej W. Rozycki
2025-05-08 14:53           ` Maciej W. Rozycki
2025-05-08 14:51         ` Maciej W. Rozycki
2025-05-15  8:56 [PATCH -v2 " Ingo Molnar
2025-05-15  8:56 ` [PATCH 03/15] x86/cpu: Remove CPU_SUP_UMC_32 support Ingo Molnar
2025-12-14  8:46 [PATCH -v3 0/15] x86: Remove support for TSC-less and CX8-less CPUs Ingo Molnar
2025-12-14  8:46 ` [PATCH 03/15] x86/cpu: Remove CPU_SUP_UMC_32 support Ingo Molnar

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