From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265489AbUFCDwe (ORCPT ); Wed, 2 Jun 2004 23:52:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265490AbUFCDwe (ORCPT ); Wed, 2 Jun 2004 23:52:34 -0400 Received: from mailout.despammed.com ([65.112.71.29]:33974 "EHLO mailout.despammed.com") by vger.kernel.org with ESMTP id S265489AbUFCDwd (ORCPT ); Wed, 2 Jun 2004 23:52:33 -0400 Date: Wed, 2 Jun 2004 22:39:17 -0500 (CDT) Message-Id: <200406030339.i533dHk07037@mailout.despammed.com> From: ndiamond@despammed.com To: linux-kernel@vger.kernel.org Subject: MIPS, How to use floating point in a module? X-Mailer: despammed.com Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Now I am told that our next target will be a MIPS-based CPU. Looking at files under arch and asm includes for MIPS, I don't see any equivalent of the x86 (x87, 686, etc.) functions and macros kernel_fpu_begin, init_fpu, kernel_fpu_end, etc. Is it safe to just barge ahead and use floating-point arithmetic operators when the driver needs to use them? This CPU has no opcodes for log2, exp2, sin, and cos, so it looks like I'll have to buy one of the books that some posters here kindly recommended, and do polynomial interpolations.