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=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 0971BC4BA1E for ; Wed, 26 Feb 2020 18:07:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CF5F424650 for ; Wed, 26 Feb 2020 18:07:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="oBha4bBV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF5F424650 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=IYvb6m7ki2SPjQNnWh5Pw+w+V5B8vfIEUcGYrD6HLok=; b=oBha4bBVAvs2JM NAZEpAK7XYrmXDuLfcyhLTvUmPtbVrL8V2mmEefkDdJ35YwXBBO+UJYdhgN+2/2/fNSRLTGbl6Cs2 ZJHGzJXZYfX+Npo/zNRjOICFsqG2pRvpxxGsWDma1zftdArpO4pRwMLnlMS/aVFSbOdvKzJfYwqWI YVeTqDUbXh2a1syUn0oD31IOCrlkZKt6JxTAsHow1n/eOnc37ac70M8oPhb48pbXfeuxhwbBn/wMd P/nMHp+x2mHFJXbQro6ofi27NK7jmJbzvGIsquoIpz9WZrVICVhy+BDk+k6pZfbLRTaEWgR4dyICA Rx4pNQmMMhj2gEieruxQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j715a-00008j-50; Wed, 26 Feb 2020 18:07:18 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7144-0007GI-OB for linux-arm-kernel@lists.infradead.org; Wed, 26 Feb 2020 18:05:46 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6BA8A30E; Wed, 26 Feb 2020 10:05:44 -0800 (PST) Received: from arrakis.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 02ACE3F881; Wed, 26 Feb 2020 10:05:42 -0800 (PST) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 05/19] arm64: mte: Assembler macros and default architecture for .S files Date: Wed, 26 Feb 2020 18:05:12 +0000 Message-Id: <20200226180526.3272848-6-catalin.marinas@arm.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200226180526.3272848-1-catalin.marinas@arm.com> References: <20200226180526.3272848-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200226_100544_856252_2C1FBABC X-CRM114-Status: UNSURE ( 8.66 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Richard Earnshaw , Szabolcs Nagy , Andrey Konovalov , Kevin Brodsky , Peter Collingbourne , linux-mm@kvack.org, Vincenzo Frascino , Will Deacon Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add the multitag_transfer_size macro to the arm64 assembler.h, together with '.arch armv8.5-a+memtag' when CONFIG_ARM64_MTE is enabled. Signed-off-by: Catalin Marinas --- Notes: v2: - Separate .arch armv8.5-a from .arch_extension memtag. arch/arm64/include/asm/assembler.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index aca337d79d12..172d114ba8a8 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -21,8 +21,14 @@ #include #include #include +#include #include +#ifdef CONFIG_ARM64_MTE + .arch armv8.5-a + .arch_extension memtag +#endif + .macro save_and_disable_daif, flags mrs \flags, daif msr daifset, #0xf @@ -732,4 +738,15 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .Lyield_out_\@ : .endm +/* + * multitag_transfer_size - set \reg to the block size that is accessed by the + * LDGM/STGM instructions. + */ + .macro multitag_transfer_size, reg, tmp + mrs_s \reg, SYS_GMID_EL1 + ubfx \reg, \reg, #SYS_GMID_EL1_BS_SHIFT, #SYS_GMID_EL1_BS_SIZE + mov \tmp, #4 + lsl \reg, \tmp, \reg + .endm + #endif /* __ASM_ASSEMBLER_H */ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel