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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 49A1DC10DCE for ; Sun, 8 Mar 2020 09:53:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F81620866 for ; Sun, 8 Mar 2020 09:53:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583661219; bh=mIeF30dk8XepLf65MsnIOdXD9aNqAhyxQIdY1ux2I4U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=NH7vHDMqGPQXe3PjmS8rhvoNn9tS1iJPugCZFgT+bqIi+1taDEQ9xhffBucrpW+L2 ZvaTvuaKSl1Lk7mvcgoKSZEB2ci/XRMJrG0vikNdQqN68roYmH1R7U/TdKLO6pD7O3 P1Q2NOMztoEMvqlaSYnL8qKVxZSOIZZ6m0RjM0FU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726549AbgCHJxi (ORCPT ); Sun, 8 Mar 2020 05:53:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:37646 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726497AbgCHJxf (ORCPT ); Sun, 8 Mar 2020 05:53:35 -0400 Received: from localhost.localdomain (unknown [89.208.247.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CF0F82084E; Sun, 8 Mar 2020 09:53:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583661214; bh=mIeF30dk8XepLf65MsnIOdXD9aNqAhyxQIdY1ux2I4U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oncBC7OEpGbGBhNHsUFoTc6m6jijE7vStDC2neSm6LzZpaM0vxsYZJRL1o+mVZeG6 ERWPjYq/0Th/usgmJFYQBdNNLE+/eM/Yv9L4iW5NtWmREw0A/4ITjKRLvFYNx2W5Q1 OJCbxrpoDh3j9EQ/5yPf0VT9G6bCsKAhqHu4AsL8= From: guoren@kernel.org To: paul.walmsley@sifive.com, palmer@dabbelt.com, Anup.Patel@wdc.com, greentime.hu@sifive.com Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, arnd@arndb.de, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Dave Martin Subject: [RFC PATCH V3 06/11] riscv: Add has_vector detect Date: Sun, 8 Mar 2020 17:49:49 +0800 Message-Id: <20200308094954.13258-7-guoren@kernel.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20200308094954.13258-1-guoren@kernel.org> References: <20200308094954.13258-1-guoren@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Guo Ren This patch is to detect "has_vector" at time of CPU feature parsing. Signed-off-by: Guo Ren --- arch/riscv/kernel/cpufeature.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index c8527d770c98..c9ab24e3c79e 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -16,6 +16,9 @@ unsigned long elf_hwcap __read_mostly; #ifdef CONFIG_FPU bool has_fpu __read_mostly; #endif +#ifdef CONFIG_VECTOR +bool has_vector __read_mostly; +#endif void riscv_fill_hwcap(void) { @@ -73,4 +76,9 @@ void riscv_fill_hwcap(void) if (elf_hwcap & (COMPAT_HWCAP_ISA_F | COMPAT_HWCAP_ISA_D)) has_fpu = true; #endif + +#ifdef CONFIG_VECTOR + if (elf_hwcap & COMPAT_HWCAP_ISA_V) + has_vector = true; +#endif } -- 2.17.0