From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 954C0C606BD for ; Mon, 8 Jul 2019 15:17:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6EAEE2171F for ; Mon, 8 Jul 2019 15:17:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562599037; bh=Hu1t/4h+tb7R4tQLWElMKX7KsisMy0tV2rRUWB3Rnak=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=j/G/rMTdeFzgIAbHsxm19i5CK+6U9NBdyME6cdPMbwBERAH2l7k+Q2ac5qS3QW1PM 6JFZ4pkuvONaV5nSjvOGEKmnYG2DxQRCJfTXuo5H4c4eG690kkai9xxhK9o2Oo8IDf 1zCS7wGIcjLAk/7IkQ3bDZ/c0OHqhvaFBlVEf5F4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732765AbfGHPRL (ORCPT ); Mon, 8 Jul 2019 11:17:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:40450 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732759AbfGHPRL (ORCPT ); Mon, 8 Jul 2019 11:17:11 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C685F216E3; Mon, 8 Jul 2019 15:17:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562599030; bh=Hu1t/4h+tb7R4tQLWElMKX7KsisMy0tV2rRUWB3Rnak=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1IC8X8eEWLf1srTR3SgNPjw9w9OahGb8x47qAvszLk3drsn3AogLr+H25yxoFRfUN nC4cIzzfzo7l2TO9mwBxe3pIcFkQZuoa3tohaXxHx8tL6aoK9QQxYKX3CTwcJOQEA/ iGP9Rzbi10mnpFT9bhrvThQEjpyqM5WJ90V0YWLw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Vineet Gupta , Sasha Levin Subject: [PATCH 4.4 55/73] ARC: Assume multiplier is always present Date: Mon, 8 Jul 2019 17:13:05 +0200 Message-Id: <20190708150524.259535132@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190708150513.136580595@linuxfoundation.org> References: <20190708150513.136580595@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 0eca6fdb3193410fbe66b6f064431cc394513e82 ] It is unlikely that designs running Linux will not have multiplier. Further the current support is not complete as tool don't generate a multilib w/o multiplier. Signed-off-by: Vineet Gupta Signed-off-by: Sasha Levin --- arch/arc/Kconfig | 8 -------- arch/arc/Makefile | 4 ---- arch/arc/kernel/setup.c | 2 -- 3 files changed, 14 deletions(-) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index e983f410135a..a5d8bef65911 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -278,14 +278,6 @@ config ARC_DCCM_BASE default "0xA0000000" depends on ARC_HAS_DCCM -config ARC_HAS_HW_MPY - bool "Use Hardware Multiplier (Normal or Faster XMAC)" - default y - help - Influences how gcc generates code for MPY operations. - If enabled, MPYxx insns are generated, provided by Standard/XMAC - Multipler. Otherwise software multipy lib is used - choice prompt "MMU Version" default ARC_MMU_V3 if ARC_CPU_770 diff --git a/arch/arc/Makefile b/arch/arc/Makefile index fffaff9c7b2c..8f8d53f08141 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -72,10 +72,6 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB # --build-id w/o "-marclinux". Default arc-elf32-ld is OK ldflags-$(upto_gcc44) += -marclinux -ifndef CONFIG_ARC_HAS_HW_MPY - cflags-y += -mno-mpy -endif - LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name) # Modules with short calls might break for calls into builtin-kernel diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 05131805aa33..3013f3f82b95 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -232,8 +232,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt); } - n += scnprintf(buf + n, len - n, "%s", - IS_USED_CFG(CONFIG_ARC_HAS_HW_MPY)); } n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n", -- 2.20.1