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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 B2258C54E8B for ; Mon, 11 May 2020 02:18:13 +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 781A02082E for ; Mon, 11 May 2020 02:18:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OQiHP0m8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 781A02082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-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.20170209; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EC++TeLx3cNyy1EBw0orucHaje0V3J4CFKgs2L48MNQ=; b=OQiHP0m8Cd1L6EL1agBum3gJb K+e4UcQLrZdvtgHERUSKeQ7Ccl604zya53rl3XEZFDowsfsH4GODr7dUyzxqnlDj+EDIclJFytb2k G2a2ITX6p0BCCxdmKEr0cOBV9XsYcZoehiHwotds6HrVmHj9MYbWkh1YMCTT6BaSi3P635yk/HZLU aiGer56kAKRd9BltmDCgshwSEve1hdhqo9yG4b1FFUa8+E/FGvcsIuhM2zrhtlY3ELLm0/Gd9sSwZ Qcg6GdhOvo6qr/cDbNJD2zB1oo8u52ueifYcVUF6cMFU01jRyqDSwZtlbDXt0NvzODUT2h+NppcF9 g6k2uUlbQ==; 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 1jXy1A-0000qa-KR; Mon, 11 May 2020 02:18:08 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jXy0G-0008VH-4X for linux-riscv@lists.infradead.org; Mon, 11 May 2020 02:17:23 +0000 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id ED6323CDCC8305343239; Mon, 11 May 2020 10:17:08 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.487.0; Mon, 11 May 2020 10:17:03 +0800 From: Kefeng Wang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , , Subject: [PATCH 03/10] riscv: Add pgprot_writecombine/device and PAGE_SHARED defination if NOMMU Date: Mon, 11 May 2020 10:19:54 +0800 Message-ID: <20200511022001.179767-4-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200511022001.179767-1-wangkefeng.wang@huawei.com> References: <20200511022001.179767-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200510_191712_377081_DF6CF0BE X-CRM114-Status: UNSURE ( 8.01 ) X-CRM114-Notice: Please train this message. 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: Hulk Robot , Kefeng Wang Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Some drivers use PAGE_SHARED, pgprot_writecombine()/pgprot_device(), add the defination to fix build error if NOMMU. Reported-by: Hulk Robot Signed-off-by: Kefeng Wang --- arch/riscv/include/asm/mmio.h | 2 ++ arch/riscv/include/asm/pgtable.h | 1 + 2 files changed, 3 insertions(+) diff --git a/arch/riscv/include/asm/mmio.h b/arch/riscv/include/asm/mmio.h index a2c809df2733..56053c9838b2 100644 --- a/arch/riscv/include/asm/mmio.h +++ b/arch/riscv/include/asm/mmio.h @@ -16,6 +16,8 @@ #ifndef CONFIG_MMU #define pgprot_noncached(x) (x) +#define pgprot_writecombine(x) (x) +#define pgprot_device(x) (x) #endif /* CONFIG_MMU */ /* Generic IO read/write. These perform native-endian accesses. */ diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 780dd1d4f720..a12d343e080a 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -470,6 +470,7 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma, #else /* CONFIG_MMU */ +#define PAGE_SHARED __pgprot(0) #define PAGE_KERNEL __pgprot(0) #define swapper_pg_dir NULL #define TASK_SIZE 0xffffffffUL -- 2.26.2