From patchwork Thu May 25 18:25:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 9748897 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3B260601E9 for ; Thu, 25 May 2017 18:27:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 33CC928066 for ; Thu, 25 May 2017 18:27:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 289CD2833C; Thu, 25 May 2017 18:27:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BFBA228066 for ; Thu, 25 May 2017 18:27:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=/0ME0JRAOPA/L8w7KSD7hnIAxc5PGdD90279ey8JbgY=; b=mlIKhUtwP9PnuW5GIyOhAqF/Xo vpNzFhY9vVm/4fb0x8wQ4B9C4evQt5MoEMI2+KiVLbDQHcNHB8avLROdV25HxG9zgsusvSLEkw4hJ YfrMvh6eIcY/ya6PoBuYRyM/ECsKgUzhi2LFYp6MkLRfoOyM0hMvRNl4unBI2e/j9Jnd0NpwBJoUP 3nbToB68a/Z/btsP2kuHaqNZqxim0HkDyq+KE4FbFalusPC3m5JJ4QdhJq/fc6kOEU028hjmtu8pl WJOtRyNHBI/Y2veXM7OJlhGNWinLsgwUyhbdyw2kBdUR9bW1Q3VLKao+MD3u5bH3iyphaD2ALsn6C CHpNT7ew==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dDxTs-0007go-5x; Thu, 25 May 2017 18:27:28 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dDxTf-0007b2-1v for linux-arm-kernel@bombadil.infradead.org; Thu, 25 May 2017 18:27:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=41OgugqFbuJDIJzHQj0rP7142BDjoUgxpAqovz9A8Hc=; b=WJOgabsspGf92kCij58/wqVYm t5TdUjVR9riG2rQxG932fpFOvOtzh/zQ2r8pMgmYD7Z/GMRsfQoTWqwIYF+4mHmlQLKKK0K9v7pAa zpo99E6NUAHg8nbxTaYxEeFBIr1AUQevzLe8V4Yca5vxSYJ4lisMTGc3odWfaOY21YJF5/Ea7NOHs pYP/q2atN08VJ1ARlW9Gub39SAJFJhI4NvYEnjt1x7OwPBUgfeeeq4M1dSmtpLtJ3BVNu2AVPlM5Y L46chFIb5To+nJ/DkIUUe1enCZWvk0FnoPfRa5ARAulaDBZPfSYSKcf+sPobB2dumGRTd1M+Gz6ZU uH0e57ThA==; Received: from foss.arm.com ([217.140.101.70]) by merlin.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dDxTc-0004qf-QU for linux-arm-kernel@lists.infradead.org; Thu, 25 May 2017 18:27:14 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C58B21596; Thu, 25 May 2017 11:26:51 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 294D03F53D; Thu, 25 May 2017 11:26:51 -0700 (PDT) From: Dave Martin To: linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH v3 4/4] arm64: neon: Add backwards compatibility kernel_neon_begin_partial() Date: Thu, 25 May 2017 19:25:01 +0100 Message-Id: <1495736721-20985-5-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1495736721-20985-1-git-send-email-Dave.Martin@arm.com> References: <1495736721-20985-1-git-send-email-Dave.Martin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170525_142713_166678_49575E13 X-CRM114-Status: UNSURE ( 7.83 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Ard Biesheuvel MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP kernel_neon_begin_partial() is no longer available, but the implementation of kernel_neon_begin() should be sufficient to satisfy kernel_neon_begin_partial() callers. Because of the changed semantics of may_use_simd() and kernel_neon_begin() such code really needs to be ported. In the meantime, this patch restores buildability of kernel-mode NEON client code. Signed-off-by: Dave Martin --- arch/arm64/include/asm/neon.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/include/asm/neon.h b/arch/arm64/include/asm/neon.h index fb9d137..885f7a6 100644 --- a/arch/arm64/include/asm/neon.h +++ b/arch/arm64/include/asm/neon.h @@ -19,4 +19,7 @@ void kernel_neon_begin(void); void kernel_neon_end(void); +/* FIXME: Backwards compatibility only, should go away: */ +#define kernel_neon_begin_partial(num_regs) kernel_neon_begin() + #endif /* ! __ASM_NEON_H */