From nobody Sun Feb 8 20:29:21 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7BF752367D5 for ; Fri, 25 Apr 2025 08:42:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745570562; cv=none; b=qZYHl6bjNei06J6qL0Y5ZpjWN+9SVvdIzf7n6q73SeLq39z3+csFEVIjr+dsuo+Csw+zdH7OgxPQhnWCMI0j66FAjCQ2QAYo1HNOYLjvTMCFoKCXJ0NUuKkzzKpA/YzATpi6pAOHORD3Xks9ZBeKH59NeFa2ImNItZvdDvAHI6w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745570562; c=relaxed/simple; bh=4bDzOVGV+XLX77n3e4NpTlhTl6brbPNo5L6qcGyq06Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GJpAfqYob89RrLnx+9GB2+NDc0i2tA38MTpgebnFXjffGPtzobZdgUqhqcxoMdx/K2s0qMSNMfLe5bSqxq8E2enkGTr3zG85tw48KnDWKib3XhriOdymSmFqdDElsIrqGGGhSUSNIwd5a2I/oke+M4X4kGbsNYCcppuVQD/Sx6Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rva1cdQ6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rva1cdQ6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5E5C3C4CEE4; Fri, 25 Apr 2025 08:42:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745570561; bh=4bDzOVGV+XLX77n3e4NpTlhTl6brbPNo5L6qcGyq06Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rva1cdQ6yxvEFo/u3yejDGVln7i3hZsw8UEf/zYpEtG1HL+cVDRKZpQmivKzR66UH iQLzqmKxu0MpK/DRq1FIHNCSUbu2hhgSxz7XOCyDiEI/8yuTGAv89+HtSNRYqDeXJa sX+FkQZF7MPAw264nnTfyD6vCs4upi9OdXP7lFTJo5hAl+oORiiQnAuK9ipQdq/9KQ fikyiYHoTNUa5b3wS7glIR70VHRXsyEg/0h4Qv60KQOwnlOGiPXKDnUe9xdO9Q/uEn Lp0jeLjNbnQdg/vcnrPAbJV6MoG6Qe+Y6F4i6kSCINC6UDA1UNdUxXTa1nSRGETmVn VawkEQM0B3WiQ== From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , "Ahmed S . Darwish" , Andrew Cooper , Ard Biesheuvel , Arnd Bergmann , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , John Ogness , Linus Torvalds , Peter Zijlstra , Thomas Gleixner Subject: [PATCH 03/15] x86/cpu: Remove CPU_SUP_UMC_32 support Date: Fri, 25 Apr 2025 10:42:00 +0200 Message-ID: <20250425084216.3913608-4-mingo@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250425084216.3913608-1-mingo@kernel.org> References: <20250425084216.3913608-1-mingo@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" These are 486 based CPUs. Signed-off-by: Ingo Molnar --- 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 =20 If unsure, say N. =20 -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 -#include -#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 =3D { - .c_vendor =3D "UMC", - .c_ident =3D { "UMC UMC UMC" }, - .legacy_models =3D { - { .family =3D 4, .model_names =3D - { - [1] =3D "U5D", - [2] =3D "U5S", - } - }, - }, - .c_x86_vendor =3D X86_VENDOR_UMC, -}; - -cpu_dev_register(umc_cpu_dev); - --=20 2.45.2