From patchwork Sun Jul 12 23:45:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: LIU Zhiwei X-Patchwork-Id: 1327653 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=c-sky.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4B4k3c3W17z9sQt for ; Mon, 13 Jul 2020 09:47:40 +1000 (AEST) Received: from localhost ([::1]:57010 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1julh4-0001wV-7c for incoming@patchwork.ozlabs.org; Sun, 12 Jul 2020 19:47:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41878) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1julfC-00072g-Ov for qemu-devel@nongnu.org; Sun, 12 Jul 2020 19:45:44 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:40744) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1julf6-0007FF-U2 for qemu-devel@nongnu.org; Sun, 12 Jul 2020 19:45:42 -0400 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.2661728|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_alarm|0.196332-0.00398669-0.799682; FP=0|0|0|0|0|-1|-1|-1; HT=e01l07440; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.I0oni3i_1594597526; Received: from L-PF1D6DP4-1208.hz.ali.com(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.I0oni3i_1594597526) by smtp.aliyun-inc.com(10.147.40.7); Mon, 13 Jul 2020 07:45:27 +0800 From: LIU Zhiwei To: qemu-devel@nongnu.org Subject: [RFC PATCH 0/8] Implement blfoat16 in softfloat Date: Mon, 13 Jul 2020 07:45:13 +0800 Message-Id: <20200712234521.3972-1-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Received-SPF: none client-ip=121.197.200.217; envelope-from=zhiwei_liu@c-sky.com; helo=smtp2200-217.mail.aliyun.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/12 19:45:28 X-ACL-Warn: Detected OS = Linux 3.x [generic] [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alex.bennee@linaro.org, wenmeng_zhang@c-sky.com, richard.henderson@linaro.org, LIU Zhiwei , wxy194768@alibaba-inc.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" As bfloat16 is more and more popular in many archs, implement bfloat16 interfaces in softfloat, so that archs can add their bfloat16 insns based on the blfoat16 interfaces here. This patch set is more copy of float16 than really define new interfaces or implementations. Any thoughts are welcomed! LIU Zhiwei (8): fpu/softfloat: fix up float16 nan recognition fpu/softfloat: use the similiar logic to recognize sNaN and qNaN fpu/softfloat: add FloatFmt for bfloat16 fpu/softfloat: add pack and unpack interfaces for bfloat16 fpu/softfloat: define brain floating-point types fpu/softfloat: define operation for bfloat16 fpu/softfloat: define covert operation for bfloat16 fpu/softfloat: define misc operation for bfloat16 fpu/softfloat-specialize.inc.c | 50 ++++- fpu/softfloat.c | 393 ++++++++++++++++++++++++++++++++- include/fpu/softfloat-types.h | 8 + include/fpu/softfloat.h | 133 +++++++++++ 4 files changed, 577 insertions(+), 7 deletions(-)