From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 3 Jun 2001 08:09:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 3 Jun 2001 08:04:26 -0400 Received: from harpo.it.uu.se ([130.238.12.34]:9705 "EHLO harpo.it.uu.se") by vger.kernel.org with ESMTP id ; Sun, 3 Jun 2001 08:04:22 -0400 Date: Sun, 3 Jun 2001 14:04:16 +0200 (MET DST) From: Mikael Pettersson Message-Id: <200106031204.OAA29677@harpo.it.uu.se> To: laughing@shared-source.org Subject: Re: Linux 2.4.5-ac7 Cc: esr@thyrsus.com, linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 3 Jun 2001 00:23:10 +0100, Alan Cox wrote: >2.4.5-ac6 >... >o Resync with Eric's master Configure.help (Eric Raymond) ac5->ac6 accidentally(?) dropped the help text for CONFIG_X86_UP_APIC. Patch below (vs -ac7) adds it back. Please apply. /Mikael --- linux-2.4.5-ac7/Documentation/Configure.help.~1~ Sun Jun 3 12:59:52 2001 +++ linux-2.4.5-ac7/Documentation/Configure.help Sun Jun 3 13:06:50 2001 @@ -243,6 +243,18 @@ chip, if it's not found then Linux falls back to PC-style interrupt handling. +APIC Support on Uniprocessors +CONFIG_X86_UP_APIC + APIC (Advanced Programmable Interrupt Controller) is a scheme for + delivering hardware interrupt requests to the CPU. It is commonly + used on systems with several CPUs. If you have a single-CPU system + which has a processor that has an integrated APIC, you can say Y + here to enable and use it. If you say Y here even though your + machine doesn't have an APIC, then the kernel will still run with no + slowdown at all. The advantage of APIC support is the possibility + to use performance counters, and the APIC based NMI watchdog which + detects hard lockups. + Kernel math emulation CONFIG_MATH_EMULATION Linux can emulate a math coprocessor (used for floating point