From patchwork Thu Sep 7 21:40:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 1831148 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=ZktXCRML; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RhXjD3lWDz1ygR for ; Fri, 8 Sep 2023 07:40:32 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 781B9869B9; Thu, 7 Sep 2023 23:40:23 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="ZktXCRML"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 012C686A3C; Thu, 7 Sep 2023 23:40:22 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-il1-x12f.google.com (mail-il1-x12f.google.com [IPv6:2607:f8b0:4864:20::12f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 82D8F86A2F for ; Thu, 7 Sep 2023 23:40:18 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=sjg@chromium.org Received: by mail-il1-x12f.google.com with SMTP id e9e14a558f8ab-34ccc0fca24so5580595ab.0 for ; Thu, 07 Sep 2023 14:40:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1694122817; x=1694727617; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=b5daRRTdLNlkY+bK37VVR4v3WldsBabAY6GSX8MwLbs=; b=ZktXCRMLmCpJ6P/pEMQUYrCvqpp9SXkOesqMJJVoWss5QqJIo5PsEmSoo9wJRFLamM FkUCtDsh0UL20akWZYG08OrOibj95nHYdu5LApUDjRXF2pvseVu4BmZJhJWk7YNRk1uH 45RWY9cZ9Mzs8bMTdqXvi1PElKgpKgp2zxtns= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694122817; x=1694727617; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=b5daRRTdLNlkY+bK37VVR4v3WldsBabAY6GSX8MwLbs=; b=SCjVGfhadpOvQyLVf5s75lNrJ9DQ4mcnI6TowAQ2lzzGW+Q/yXVMGyHp2pyOsqg+rH 6TsL8so/Drk6t0fhQNgdarxcqbR/K8Iv3WlxKPZ1pXCaO3/KkzoXqK1AWPW+g7LgM3nN Nwq/cbLxaY+yMVX/AAxBal27CpWxOlBuubL6wYdZAWUKR1PIYLgrtHje+zYTIgJrrsSv yNA6pzIYgtShvrBpcljG9R37dq1jfoZ/aVMWYINk9bd4Kwrpzz6kraTcNRzZhaDeoTWA OBkzYRoYpCo5jshdOCTIlTWLeB5/GngLiNDcBHFN1hKckRJ/HOfpChaVrlFHT2mbKxD5 1iYw== X-Gm-Message-State: AOJu0Yy4+M//E5V9P8/nHRf6FX8X8FtZihN3uNAUeQFnPIDfzzXHIyyo hvc/JU12wAH6II9OTcWUT3xCEw== X-Google-Smtp-Source: AGHT+IEOo9i8+AV7SDMWoVUID/hLd8I+L2Kc4qthbyfM9QnHCrPKzqJp7ucAuhasGZkxp4mk+KwwGw== X-Received: by 2002:a05:6e02:219b:b0:34a:c751:28ca with SMTP id j27-20020a056e02219b00b0034ac75128camr1176329ila.15.1694122817229; Thu, 07 Sep 2023 14:40:17 -0700 (PDT) Received: from sjg1.lan (c-73-243-118-188.hsd1.co.comcast.net. [73.243.118.188]) by smtp.gmail.com with ESMTPSA id x14-20020a92d30e000000b00348edca2abesm72006ila.47.2023.09.07.14.40.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Sep 2023 14:40:17 -0700 (PDT) From: Simon Glass To: devicetree@vger.kernel.org Cc: Dhaval Sharma , Guo Dong , U-Boot Mailing List , Yunhui Cui , Chiu Chasel , Mark Rutland , linux-acpi@vger.kernel.org, Rob Herring , Maximilian Brune , Ard Biesheuvel , Tom Rini , Lean Sheng Tan , Gua Guo , ron minnich , Simon Glass Subject: [PATCH v6 2/2] schemas: memory: Add ECC properties Date: Thu, 7 Sep 2023 15:40:11 -0600 Message-ID: <20230907214012.74978-2-sjg@chromium.org> X-Mailer: git-send-email 2.42.0.283.g2d96d420d3-goog In-Reply-To: <20230907214012.74978-1-sjg@chromium.org> References: <20230907214012.74978-1-sjg@chromium.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Some memories provide ECC detection and/or correction. For software which wants to check memory, it is helpful to see which regions provide this feature. Add this as a property of the /memory nodes, since it presumably follows the hardware-level memory system. Signed-off-by: Simon Glass --- Changes in v6: - Use a number of bits instead of a string property - Fix inidcates typo Changes in v5: - Redo to make this property specific to ECC - Provide properties both for detection and correction Changes in v3: - Add new patch to update the /memory nodes dtschema/schemas/memory.yaml | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/dtschema/schemas/memory.yaml b/dtschema/schemas/memory.yaml index 1d74410..1a48b1c 100644 --- a/dtschema/schemas/memory.yaml +++ b/dtschema/schemas/memory.yaml @@ -31,10 +31,21 @@ patternProperties: numa-node-id: $ref: types.yaml#/definitions/uint32 - description: + description: | For the purpose of identification, each NUMA node is associated with a unique token known as a node id. - + ecc-detection-bits: + default: 0 + description: | + If present, this indicates the number of bits of memory error which + can be detected and reported by the Error-Correction Code (ECC) memory + subsystem (typically 0, 1 or 2). + ecc-correction-bits: + default: 0 + description: | + If present, this indicates the number of bits of memory error which + can be corrected by the Error-Correction Code (ECC) memory subsystem + (typically 0, 1 or 2). required: - device_type