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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 22B74C83F03 for ; Thu, 3 Jul 2025 20:59:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vDHDpA7JX0IfKfzEPB4rBqEuUrfcVoTPbDvJEtnYxvI=; b=h+oCx5VkjPsGCbKn+KYlhGmAC5 1S2+r/Njq3vmY/fWoC/TAbHOQXYAy0i3fZnTxGVHrhP+BEe9VYg+Gyont6SX1J21OhTOBtAMDos2I Pto24bzphDh+C7SSOrd2NoLEycAcmwl/nB13ww2v4lgiXSRYoiIVLQqpV9b5kxpwVZoIv+XVAaAJA G0/fYNBRPRGlXLwb53YEb0/5SXLzRoAHSOLoLIWTkT1WFhb9KBphHsyyl23M9G3R4m67O6IWkAt4n 4m4ZDRqtVm3UGlfSwCdtim9TqOeAqDOLW0G7EgzLjbryLacSPKYu4tOxcpkPKzstulPHn5Zdf4w+U WBo9VLVg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uXR1S-0000000CWH2-2uMh; Thu, 03 Jul 2025 20:59:10 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uXMQf-0000000Bvu5-1ZVA for linux-arm-kernel@lists.infradead.org; Thu, 03 Jul 2025 16:04:54 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A809C46552; Thu, 3 Jul 2025 16:04:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 499FAC4CEE3; Thu, 3 Jul 2025 16:04:49 +0000 (UTC) Date: Thu, 3 Jul 2025 17:04:47 +0100 From: Catalin Marinas To: Lorenzo Pieralisi Cc: Marc Zyngier , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Will Deacon , Arnd Bergmann , Sascha Bischoff , Jonathan Cameron , Timothy Hayes , Bjorn Helgaas , "Liam R. Howlett" , Peter Maydell , Mark Rutland , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org Subject: Re: [PATCH v7 19/31] arm64: Add support for GICv5 GSB barriers Message-ID: References: <20250703-gicv5-host-v7-0-12e71f1b3528@kernel.org> <20250703-gicv5-host-v7-19-12e71f1b3528@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250703-gicv5-host-v7-19-12e71f1b3528@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250703_090453_430237_3A1A4D44 X-CRM114-Status: GOOD ( 10.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jul 03, 2025 at 12:25:09PM +0200, Lorenzo Pieralisi wrote: > The GICv5 architecture introduces two barriers instructions > (GSB SYS, GSB ACK) that are used to manage interrupt effects. > > Rework macro used to emit the SB barrier instruction and implement > the GSB barriers on top of it. > > Suggested-by: Marc Zyngier > Signed-off-by: Lorenzo Pieralisi > Reviewed-by: Marc Zyngier > Cc: Will Deacon > Cc: Catalin Marinas > Cc: Marc Zyngier Acked-by: Catalin Marinas