From patchwork Fri Jun 4 07:06:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12298993 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 071CAC47083 for ; Fri, 4 Jun 2021 07:10:34 +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 C8BE961419 for ; Fri, 4 Jun 2021 07:10:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C8BE961419 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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=lv9ZYsSRoBtVMM7CsFH/7b2vgvV+Dp3m6P0tPj/bUOo=; b=cFtyNpDl67IngC 1R3TLIubS2boJnAbWGi7gXQKZ4ibEvvM/QzqMlPfwYHYqRaENrybhzAsnNXPSJmRACYr1Xc8C3DXz YmnNfwOAeMsgpOUvfRdLMIYJDP+eAyty173TkCQogyKZ+89Zf1jC1Q12uXcU5tzEzSl18g5VQ/Wxb vt8zeQGxApB0n269ezE3uWacJHPqz77vnf0PDlIJ4P/WSpPtvcj94KwontFep9T81UweuzuK6J1hF cuTpk8Bfh7Y4LtgfMEX7rJlm7U/kloowxp24P1abAZYryWGwxR0VD1NCh0HEl6fgDYpci8r8g0x/c NLBY0Yr5VgnWloMeAFLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lp3yD-00BxJu-6I; Fri, 04 Jun 2021 07:10:17 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lp3mM-00BsEQ-FE; Fri, 04 Jun 2021 06:58:05 +0000 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4FxD5C6GFvz64vH; Fri, 4 Jun 2021 14:54:07 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 4 Jun 2021 14:57:54 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 4 Jun 2021 14:57:53 +0800 From: Kefeng Wang To: Andrew Morton , CC: , Kefeng Wang , , , , , , , , , , , Subject: [PATCH v2 01/15] mm: add setup_initial_init_mm() helper Date: Fri, 4 Jun 2021 15:06:19 +0800 Message-ID: <20210604070633.32363-2-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210604070633.32363-1-wangkefeng.wang@huawei.com> References: <20210604070633.32363-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_235802_758310_CFC0B310 X-CRM114-Status: UNSURE ( 7.66 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add setup_initial_init_mm() helper to setup kernel text, data and brk. Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-csky@vger.kernel.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-m68k@lists.linux-m68k.org Cc: openrisc@lists.librecores.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-sh@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Kefeng Wang --- include/linux/mm_types.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 5aacc1c10a45..e1d2429089a4 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -572,6 +572,14 @@ struct mm_struct { }; extern struct mm_struct init_mm; +static inline void setup_initial_init_mm(void *start_code, void *end_code, + void *end_data, void *brk) +{ + init_mm.start_code = (unsigned long)start_code; + init_mm.end_code = (unsigned long)end_code; + init_mm.end_data = (unsigned long)end_data; + init_mm.brk = (unsigned long)brk; +} /* Pointer magic because the dynamic array size confuses some compilers. */ static inline void mm_init_cpumask(struct mm_struct *mm) From patchwork Fri Jun 4 07:06:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12298989 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 1B4A4C07E94 for ; Fri, 4 Jun 2021 07:10:24 +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 D6D6161415 for ; 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Fri, 4 Jun 2021 14:57:59 +0800 From: Kefeng Wang To: Andrew Morton , CC: , Kefeng Wang , "Paul Walmsley" , Palmer Dabbelt , Subject: [PATCH v2 12/15] riscv: convert to setup_initial_init_mm() Date: Fri, 4 Jun 2021 15:06:30 +0800 Message-ID: <20210604070633.32363-13-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210604070633.32363-1-wangkefeng.wang@huawei.com> References: <20210604070633.32363-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_235803_399080_3359003D X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Use setup_initial_init_mm() helper to simplify code. Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: linux-riscv@lists.infradead.org Signed-off-by: Kefeng Wang Acked-by: Palmer Dabbelt --- arch/riscv/kernel/setup.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index 03901d3a8b02..52396874f859 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -264,10 +264,7 @@ static void __init parse_dtb(void) void __init setup_arch(char **cmdline_p) { parse_dtb(); - init_mm.start_code = (unsigned long) _stext; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = (unsigned long) _end; + setup_initial_init_mm(_stext, _etext, _edata, _end); *cmdline_p = boot_command_line;