From patchwork Thu Jan 25 16:42:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Elisei X-Patchwork-Id: 13531417 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 A0955C47258 for ; Thu, 25 Jan 2024 16:49:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rfwc7u8GjTyhksetSCT5LSIvzBYOORbs9F6qr8CHtPQ=; b=dUGM37qedtG0b3 CdcPH+GLtwpbxRcv0HcNELbDNjorqGZH0W/nU7jbMVI98Nf9HfFEMnZ+Z5S2sOCzAGMakN52prqE6 c9K7z+YMIBeUH8ZK69xKliRUS6UjoV/ux5H73ZVde2mnRlSccE+PA10y6th+6jGHy8+inpt+SZkUr /WaDLc0wU+V4Q4d2zw+92dgPluPGzdPMXj+lfNnWFEKhhE1S3C3S5Ku1Bpste5rMGdaWzKQ02Gb6G MfYWyEYG6occXcULzgO6qgnetkNIzkd8Yt0cdWHGnXRTXjLmKnPtLHu8TCwUgh3vwHhvxGjE4dMIQ JKDU/P7MWmeqivB+kuLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT2uC-00000000vqz-45xw; Thu, 25 Jan 2024 16:48:45 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT2ri-00000000uSw-1Zmv for linux-arm-kernel@lists.infradead.org; Thu, 25 Jan 2024 16:46:12 +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 908D41762; Thu, 25 Jan 2024 08:46:53 -0800 (PST) Received: from e121798.cable.virginm.net (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A7DED3F5A1; Thu, 25 Jan 2024 08:46:03 -0800 (PST) From: Alexandru Elisei To: catalin.marinas@arm.com, will@kernel.org, oliver.upton@linux.dev, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, arnd@arndb.de, akpm@linux-foundation.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, mhiramat@kernel.org, rppt@kernel.org, hughd@google.com Cc: pcc@google.com, steven.price@arm.com, anshuman.khandual@arm.com, vincenzo.frascino@arm.com, david@redhat.com, eugenis@google.com, kcc@google.com, hyesoo.yu@samsung.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH RFC v3 35/35] HACK! arm64: dts: Add fake tag storage to fvp-base-revc.dts Date: Thu, 25 Jan 2024 16:42:56 +0000 Message-Id: <20240125164256.4147-36-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240125164256.4147-1-alexandru.elisei@arm.com> References: <20240125164256.4147-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240125_084610_593304_289BFAF2 X-CRM114-Status: UNSURE ( 9.46 ) X-CRM114-Notice: Please train this message. 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 Faking a tag storage region for FVP is useful for testing. Signed-off-by: Alexandru Elisei --- Changes since rfc v2: * New patch, not intended to be merged. arch/arm64/boot/dts/arm/fvp-base-revc.dts | 42 +++++++++++++++++++++-- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/arm/fvp-base-revc.dts b/arch/arm64/boot/dts/arm/fvp-base-revc.dts index 60472d65a355..e9f44420cb62 100644 --- a/arch/arm64/boot/dts/arm/fvp-base-revc.dts +++ b/arch/arm64/boot/dts/arm/fvp-base-revc.dts @@ -165,10 +165,30 @@ C1_L2: l2-cache1 { }; }; - memory@80000000 { + memory0: memory@80000000 { device_type = "memory"; - reg = <0x00000000 0x80000000 0 0x80000000>, - <0x00000008 0x80000000 0 0x80000000>; + reg = <0x00 0x80000000 0x00 0x80000000>; + numa-node-id = <0x00>; + }; + + /* tags0 */ + tags_memory0: memory@8f8000000 { + device_type = "memory"; + reg = <0x08 0xf8000000 0x00 0x4000000>; + numa-node-id = <0x00>; + }; + + memory1: memory@880000000 { + device_type = "memory"; + reg = <0x08 0x80000000 0x00 0x78000000>; + numa-node-id = <0x01>; + }; + + /* tags1 */ + tags_memory1: memory@8fc00000 { + device_type = "memory"; + reg = <0x08 0xfc000000 0x00 0x3c00000>; + numa-node-id = <0x01>; }; reserved-memory { @@ -183,6 +203,22 @@ vram: vram@18000000 { reg = <0x00000000 0x18000000 0 0x00800000>; no-map; }; + + tags0: tag-storage@8f8000000 { + compatible = "arm,mte-tag-storage"; + reg = <0x08 0xf8000000 0x00 0x4000000>; + block-size = <0x1000>; + tagged-memory = <&memory0>; + reusable; + }; + + tags1: tag-storage@8fc00000 { + compatible = "arm,mte-tag-storage"; + reg = <0x08 0xfc000000 0x00 0x3c00000>; + block-size = <0x1000>; + tagged-memory = <&memory1>; + reusable; + }; }; gic: interrupt-controller@2f000000 {