From patchwork Sun May 24 09:10:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Ghiti X-Patchwork-Id: 11567191 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 8D6A915E4 for ; Sun, 24 May 2020 09:13:25 +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 6BB0B2076C for ; Sun, 24 May 2020 09:13:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="itTRFPXN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6BB0B2076C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ghiti.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+patchwork-linux-riscv=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:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id:Date :Subject:To:From:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=B6nI+HGdlLquzt9Sz/96pm+D/CHz6xXYalADcMQmk14=; b=itTRFPXN9NqCzh yGnBP0lS1q6mY2w5rgqbYY7NoTJv0q3alL3yTujPHR5zmWBd08gHB/G5ZWfkWnXknb90bret4asv/ Z3/bQbBcRuoaT74VcmI/2E8MMkN+jjWvUaYTiedHBenrfENrTp63sNeMkP9vwfhYhbMJAgHQRItOR tXJIwCpfVI/H/Kf6EtQplgkpH6gR351NNj1rYN8FKO0DWB3x4y+RGk8vx+m3VsTYpRubgrZNGDjWU OV/fhL9BQeBODhslho4Nz+cP1Qo3pHC+PDujpFjIXUnbCIRPLFiTghj5vgk3ho6ufVt18bjP51v9s lnJ55pZ17ROD+Drsy9DQ==; 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 1jcmh9-0001sp-DH; Sun, 24 May 2020 09:13:23 +0000 Received: from relay6-d.mail.gandi.net ([217.70.183.198]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jcmh6-0001rv-Eu for linux-riscv@lists.infradead.org; Sun, 24 May 2020 09:13:21 +0000 X-Originating-IP: 90.112.45.105 Received: from localhost.localdomain (lfbn-gre-1-325-105.w90-112.abo.wanadoo.fr [90.112.45.105]) (Authenticated sender: alex@ghiti.fr) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id F3C7BC0003; Sun, 24 May 2020 09:13:15 +0000 (UTC) From: Alexandre Ghiti To: Paul Walmsley , Palmer Dabbelt , Zong Li , Anup Patel , Christoph Hellwig , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/8] riscv: Simplify MAXPHYSMEM config Date: Sun, 24 May 2020 05:10:03 -0400 Message-Id: <20200524091008.25587-4-alex@ghiti.fr> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200524091008.25587-1-alex@ghiti.fr> References: <20200524091008.25587-1-alex@ghiti.fr> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200524_021320_647106_AB7D3F48 X-CRM114-Status: UNSURE ( 7.31 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [217.70.183.198 listed in list.dnswl.org] 0.0 SPF_NONE SPF: sender does not publish an SPF Record -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [217.70.183.198 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Ghiti Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org Either the user specifies maximum physical memory size of 2GB or the user lives with the system constraint which is 1/4th of maximum addressable memory in Sv39 MMU mode (i.e. 128GB) for now. Signed-off-by: Alexandre Ghiti Reviewed-by: Anup Patel --- arch/riscv/Kconfig | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 64b25a90d60f..e167f16131f4 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -106,7 +106,7 @@ config PAGE_OFFSET default 0xC0000000 if 32BIT && MAXPHYSMEM_2GB default 0x80000000 if 64BIT && !MMU default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB - default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB + default 0xffffffe000000000 if 64BIT && !MAXPHYSMEM_2GB config ARCH_FLATMEM_ENABLE def_bool y @@ -223,19 +223,11 @@ config MODULE_SECTIONS bool select HAVE_MOD_ARCH_SPECIFIC -choice - prompt "Maximum Physical Memory" - default MAXPHYSMEM_2GB if 32BIT - default MAXPHYSMEM_2GB if 64BIT && CMODEL_MEDLOW - default MAXPHYSMEM_128GB if 64BIT && CMODEL_MEDANY - - config MAXPHYSMEM_2GB - bool "2GiB" - config MAXPHYSMEM_128GB - depends on 64BIT && CMODEL_MEDANY - bool "128GiB" -endchoice - +config MAXPHYSMEM_2GB + bool "Maximum Physical Memory 2GiB" + default y if 32BIT + default y if 64BIT && CMODEL_MEDLOW + default n config SMP bool "Symmetric Multi-Processing"