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From: Arnd Bergmann <arnd@kernel.org>
To: Ingo Molnar <mingo@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Richard Weinberger <richard@nod.at>,
	Anton Ivanov <anton.ivanov@cambridgegreys.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	Thomas Gleixner <tglx@kernel.org>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Will Deacon <will@kernel.org>, Boqun Feng <boqun@kernel.org>,
	Gary Guo <gary@garyguo.net>, Yury Norov <yury.norov@gmail.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Alexander Usyskin <alexander.usyskin@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	Przemek Kitszel <przemyslaw.kitszel@intel.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	linux-um@lists.infradead.org
Subject: [PATCH 5/8] x86: remove dependencies on CONFIG_M... CPU options
Date: Fri, 22 May 2026 16:19:56 +0200	[thread overview]
Message-ID: <20260522141959.1071595-6-arnd@kernel.org> (raw)
In-Reply-To: <20260522141959.1071595-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

CPU specific features should generally be controlled by
CPU_SUP_xxx options rather than CONFIG_Mxxx, to allow
generic kernels to be built that work with all of them.

Replace the few options that don't follow this scheme
with checks on either CPU_SUP_xxx or X86_PAE by itself.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/x86/kernel/tsc.c    | 2 +-
 arch/x86/xen/Kconfig     | 3 +--
 drivers/misc/mei/Kconfig | 2 +-
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index e7a43471783f..3d5d38035c52 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1213,7 +1213,7 @@ static void __init tsc_disable_clocksource_watchdog(void)
 
 static void __init check_system_tsc_reliable(void)
 {
-#if defined(CONFIG_MGEODEGX1) || defined(CONFIG_MGEODE_LX) || defined(CONFIG_X86_GENERIC)
+#if defined(CONFIG_CPU_SUP_CYRIX_32)
 	if (is_geode_lx()) {
 		/* RTSC counts during suspend */
 #define RTSC_SUSP 0x100
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index aa4040fd9215..7e74db652215 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -10,8 +10,7 @@ config XEN
 	select X86_HV_CALLBACK_VECTOR
 	select HIBERNATE_CALLBACKS
 	depends on X86_64 || (X86_32 && X86_PAE)
-	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
-	depends on X86_LOCAL_APIC && X86_TSC
+	depends on X86_LOCAL_APIC
 	help
 	  This is the Linux Xen port.  Enabling this will allow the
 	  kernel to boot in a paravirtualized environment under the
diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig
index 2d1bc5b4d11b..faa451584002 100644
--- a/drivers/misc/mei/Kconfig
+++ b/drivers/misc/mei/Kconfig
@@ -4,7 +4,7 @@ config INTEL_MEI
 	tristate "Intel Management Engine Interface"
 	depends on PCI
 	depends on X86 || DRM_XE!=n || COMPILE_TEST
-	default X86_64 || MATOM
+	default X86_64 || CPU_SUP_INTEL
 	help
 	  The Intel Management Engine (Intel ME) provides Manageability,
 	  Security and Media services for system containing Intel chipsets.
-- 
2.39.5



  parent reply	other threads:[~2026-05-22 14:20 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-22 14:19 [PATCH 0/8] x86-32 CPU configuration cleanups Arnd Bergmann
2026-05-22 14:19 ` [PATCH 1/8] x86: remove ts5500 platforms support Arnd Bergmann
2026-06-01  8:31   ` Geert Uytterhoeven
2026-06-01 12:27     ` Arnd Bergmann
2026-05-22 14:19 ` [PATCH 2/8] x86: remove AMD Élan remnants Arnd Bergmann
2026-05-22 14:19 ` [PATCH 3/8] x86: make TSC usage unconditional Arnd Bergmann
2026-05-22 16:11   ` Brian Gerst
2026-05-22 14:19 ` [PATCH 4/8] x86: make CX8 " Arnd Bergmann
2026-05-22 14:19 ` Arnd Bergmann [this message]
2026-05-22 15:46   ` [PATCH 5/8] x86: remove dependencies on CONFIG_M... CPU options Juergen Gross
2026-05-22 18:54     ` Arnd Bergmann
2026-05-22 19:00       ` Jürgen Groß
2026-05-22 21:22         ` David Laight
2026-05-22 14:19 ` [PATCH 6/8] x86: require minimum 64 byte cache lines Arnd Bergmann
2026-05-22 14:19 ` [PATCH 7/8] x86: remove dependencies on per-CPU options Arnd Bergmann
2026-05-22 14:19 ` [PATCH 8/8] x86: simplify 32-bit instruction set selection Arnd Bergmann
2026-05-22 21:33   ` David Laight
2026-05-23  8:51     ` Arnd Bergmann
2026-05-23 10:02       ` David Laight

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