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,URIBL_BLOCKED,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 1F44DC54FD0 for ; Tue, 21 Apr 2020 14:28:29 +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 9F9242071C for ; Tue, 21 Apr 2020 14:28:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Nle1FC0i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9F9242071C 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=+rmMOX8TmRX9Uox5Fz+QBdRBcKJfNQTe1zixbS2cTL8=; b=Nle1FC0iAcEHVP +3pBktjeK0zSuaOZNSLs+qM0HPzo0uKdQtuCNqOM6sZIpxaIdVPJacY/rePvg7SZ/zLWJDHdT40KB TVGpnscv8FTnsh3V085tqpCRoeY5HeEKFB+sL6GagpA3LPhwk0dxvb4uxQ3X+Vzl06IDP9V9BsDZB 9utjE1HEjU1gGvzpYCQ7QUEg4FP3Yju89is5Vd+0go1iujpausUV9KHHtQZ1YLPCB+pkkd0EAGBHD kQ0FU1/LpRfMR22kBfJTsPpkxLqNzZ8MdzZx7kL3lK6b7vVqDb5+me66ob+6moNj6lCZBUIk9PcGy k3FO9O45mrdUMbylurIQ==; 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 1jQtst-0001Rp-C6; Tue, 21 Apr 2020 14:28:23 +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 1jQtqv-00089E-J4 for linux-arm-kernel@lists.infradead.org; Tue, 21 Apr 2020 14:26:23 +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 874FA101E; Tue, 21 Apr 2020 07:26:20 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id E8D423F68F; Tue, 21 Apr 2020 07:26:18 -0700 (PDT) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 05/23] arm64: mte: Assembler macros and default architecture for .S files Date: Tue, 21 Apr 2020 15:25:45 +0100 Message-Id: <20200421142603.3894-6-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200421142603.3894-1-catalin.marinas@arm.com> References: <20200421142603.3894-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200421_072621_779164_5DE5DE64 X-CRM114-Status: UNSURE ( 9.09 ) 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 Cc: Will Deacon --- Notes: This patch may change as ".arch armv8.5-a" will be required for other features like BTI. 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 0bff325117b4..e7338e129dfd 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 @@ -736,4 +742,15 @@ 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