From patchwork Wed Dec 11 18:40:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Catalin Marinas X-Patchwork-Id: 11285949 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 57186109A for ; Wed, 11 Dec 2019 18:43:16 +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 3178C20663 for ; Wed, 11 Dec 2019 18:43:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="pFqpzEhG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3178C20663 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+patchwork-linux-arm=patchwork.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=gipsOcSTQLNI3RTJXZ0OWT4YDunMvrwUCK7p1NJdfI8=; b=pFqpzEhG1EHC61 17Up7UlDrgwKvXbbpEfRBHcks1lNScTaKupnSfJ9azKbQymo7N9DGktZbYZdmfJTiOs+ZJaQIeDEa MVH7bNWwIBlFryMOEdZp5eVdTEoorIjR3jp/cV7kBcFZxX5Qs3jI0kL1rp6Lt3kgtCncr23fayBj3 fRmVyXCisbduKr939PNcrSkY1t9FYsDqyuwbjEPGftSdJnLhcit8W71jGpEvgEI9B3Mznc53//cO1 BNGOr4QZjAyZrGnmyvECF04kgYNA/SO/7gvcj9YTGo68tFOEWzREqyY2CznBFSBlsdvk+cC11CGx4 tTZaF4Vz/JqBZWCpH8kQ==; 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 1if6x7-0005Qu-0f; Wed, 11 Dec 2019 18:43:13 +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 1if6uq-0003E1-4o for linux-arm-kernel@lists.infradead.org; Wed, 11 Dec 2019 18:40:53 +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 E18DD1396; Wed, 11 Dec 2019 10:40:50 -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 7033F3F6CF; Wed, 11 Dec 2019 10:40:49 -0800 (PST) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 08/22] arm64: mte: Assembler macros and default architecture for .S files Date: Wed, 11 Dec 2019 18:40:13 +0000 Message-Id: <20191211184027.20130-9-catalin.marinas@arm.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191211184027.20130-1-catalin.marinas@arm.com> References: <20191211184027.20130-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_104052_231138_86CC2101 X-CRM114-Status: UNSURE ( 8.51 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 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 , Marc Zyngier , Kevin Brodsky , linux-mm@kvack.org, Andrey Konovalov , Vincenzo Frascino , Will Deacon Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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 --- arch/arm64/include/asm/assembler.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index b8cf7c85ffa2..74a649a0b6e6 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -21,8 +21,13 @@ #include #include #include +#include #include +#ifdef CONFIG_ARM64_MTE + .arch armv8.5-a+memtag +#endif + .macro save_and_disable_daif, flags mrs \flags, daif msr daifset, #0xf @@ -756,4 +761,15 @@ 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 */