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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D85DFC433B4 for ; Thu, 1 Apr 2021 21:20:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 95238610F7 for ; Thu, 1 Apr 2021 21:20:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234847AbhDAVUZ (ORCPT ); Thu, 1 Apr 2021 17:20:25 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:13036 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234643AbhDAVUR (ORCPT ); Thu, 1 Apr 2021 17:20:17 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4FB3wM1j4Dz9twjW; Thu, 1 Apr 2021 15:30:43 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id orJzLC6qpMu6; Thu, 1 Apr 2021 15:30:43 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4FB3wL6NvHz9twjT; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E035D8B99D; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id iVfC5c5VWB6i; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: from po16121vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 929A38B991; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: by po16121vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 6F70A67646; Thu, 1 Apr 2021 13:30:42 +0000 (UTC) Message-Id: In-Reply-To: <0c3d5cb8a4dfdf6ca1b8aeb385c01470d6628d55.1617283827.git.christophe.leroy@csgroup.eu> References: <0c3d5cb8a4dfdf6ca1b8aeb385c01470d6628d55.1617283827.git.christophe.leroy@csgroup.eu> From: Christophe Leroy Subject: [PATCH 2/3] powerpc/8xx: Define a MODULE area below kernel text To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , jniethe5@gmail.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Thu, 1 Apr 2021 13:30:42 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On the 8xx, TASK_SIZE is 0x80000000. The space between TASK_SIZE and PAGE_OFFSET is not used. In order to benefit from the powerpc specific module_alloc() function which allocate modules with 32 Mbytes from end of kernel text, define MODULES_VADDR and MODULES_END. Set a 256Mb area just below PAGE_OFFSET, like book3s/32. Signed-off-by: Christophe Leroy --- arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h index 478249959baa..6e4faa0a9b35 100644 --- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h +++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h @@ -172,6 +172,9 @@ #define mmu_linear_psize MMU_PAGE_8M +#define MODULES_VADDR (PAGE_OFFSET - SZ_256M) +#define MODULES_END PAGE_OFFSET + #ifndef __ASSEMBLY__ #include -- 2.25.0 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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E9E1C433B4 for ; Thu, 1 Apr 2021 13:31:16 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 6249D61247 for ; Thu, 1 Apr 2021 13:31:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6249D61247 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FB3wx6YQmz3c1K for ; Fri, 2 Apr 2021 00:31:13 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4FB3wT5DTBz30GD for ; Fri, 2 Apr 2021 00:30:47 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4FB3wM1j4Dz9twjW; Thu, 1 Apr 2021 15:30:43 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id orJzLC6qpMu6; Thu, 1 Apr 2021 15:30:43 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4FB3wL6NvHz9twjT; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E035D8B99D; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id iVfC5c5VWB6i; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: from po16121vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 929A38B991; Thu, 1 Apr 2021 15:30:42 +0200 (CEST) Received: by po16121vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 6F70A67646; Thu, 1 Apr 2021 13:30:42 +0000 (UTC) Message-Id: In-Reply-To: <0c3d5cb8a4dfdf6ca1b8aeb385c01470d6628d55.1617283827.git.christophe.leroy@csgroup.eu> References: <0c3d5cb8a4dfdf6ca1b8aeb385c01470d6628d55.1617283827.git.christophe.leroy@csgroup.eu> From: Christophe Leroy Subject: [PATCH 2/3] powerpc/8xx: Define a MODULE area below kernel text To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , jniethe5@gmail.com Date: Thu, 1 Apr 2021 13:30:42 +0000 (UTC) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On the 8xx, TASK_SIZE is 0x80000000. The space between TASK_SIZE and PAGE_OFFSET is not used. In order to benefit from the powerpc specific module_alloc() function which allocate modules with 32 Mbytes from end of kernel text, define MODULES_VADDR and MODULES_END. Set a 256Mb area just below PAGE_OFFSET, like book3s/32. Signed-off-by: Christophe Leroy --- arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h index 478249959baa..6e4faa0a9b35 100644 --- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h +++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h @@ -172,6 +172,9 @@ #define mmu_linear_psize MMU_PAGE_8M +#define MODULES_VADDR (PAGE_OFFSET - SZ_256M) +#define MODULES_END PAGE_OFFSET + #ifndef __ASSEMBLY__ #include -- 2.25.0