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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no 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 D4847C433E0 for ; Tue, 16 Jun 2020 07:45:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4320206F1 for ; Tue, 16 Jun 2020 07:45:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="bKS0uXY1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727051AbgFPHpx (ORCPT ); Tue, 16 Jun 2020 03:45:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725768AbgFPHpw (ORCPT ); Tue, 16 Jun 2020 03:45:52 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3056C05BD43 for ; Tue, 16 Jun 2020 00:45:52 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id b5so7877871pgm.8 for ; Tue, 16 Jun 2020 00:45:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=IsyEWcYygbhjQ4E/M3Trk0mzbxlIEbyexF/crSFF0iA=; b=bKS0uXY1RoPn89ss/zHIQJruMG6Bf8QIqELS9HFq7/KFGcTAE5BzxQ8ZoRK/ux+Rnb dYq0ky9nNrTI6Uw/0WVly7OLsjwBHVQx+gYDqM76K0k+7v5ktl7PQqoPENXCqXrrW1gh iO9jh6u5ycqQ86AWMcclHfwwmDRuYGN51g+/Wi4nwDBUAhMhkn2VpRJFOC3e6JLKu1s0 //GRoqEHT2FQbadMA7dtHW2WpZhWvRSMvYwvmOlW6PDOhlrU/IWut4SezBjLqtMxNwj/ eon5O+Sz79zBN8BGt4SKHqZaeLwiawhvu0rFzHtDyVRztLo9zs7dgipzzcqrZxsN8UnM V+1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=IsyEWcYygbhjQ4E/M3Trk0mzbxlIEbyexF/crSFF0iA=; b=rHA7FtuVTYvA/cJYnjMzAboVRff2uc4s1/p8f4CkzfkHJs5anG59objm/a1HpwcalJ FMrKkowbPtrYyGQPl5mlbaBQcgcNS2WyGtldCr8N0kjJWwiwoGUV0LgikLwHaFQ1A5wy 7UnV7FcMhS7FuoWVKR+5Cy2p1000HC54WIOkHf2vKn9ywYBzYc7qT3SbRJQ2JY19sZEc S0UULH0hbdJ5UgxeQKQ9+rb8BcXFIBcJ5YlhQ/SqgATQfko8ld4A5OSeiSA74au+x8fy z9AMbPjkFi9x9x65oEelM6BybU/myGnE0Fg9Gh2lbGQ8/fOej/5wBWDjua97ED44LTRX 38lA== X-Gm-Message-State: AOAM530jnz+wgL/0biqcZnRi8GhNFdho8e/FEONLfziAOI5EDIFBjO4x rSu0TbzaLM5DazHG54FjDAjXmA== X-Google-Smtp-Source: ABdhPJxt56goaO/h2Hz84NjfzGjvHSDyvFR6s2yFLty0WmeiD9CrXWjxzh6OlSfuwJbCg4qHFtWGAA== X-Received: by 2002:a62:1a0f:: with SMTP id a15mr1041057pfa.177.1592293552119; Tue, 16 Jun 2020 00:45:52 -0700 (PDT) Received: from hsinchu02.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id i22sm15948250pfo.92.2020.06.16.00.45.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jun 2020 00:45:51 -0700 (PDT) From: Zong Li To: paul.walmsley@sifive.com, palmer@dabbelt.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Zong Li Subject: [PATCH 0/2] Add STRICT_DEVMEM support on RISC-V Date: Tue, 16 Jun 2020 15:45:45 +0800 Message-Id: X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset include two parts, the first one is that register System RAM as iomem resources, it is needed for page_is_ram API which checks the specified address whether registered as System RAM in iomem_resource list. The second patch is that add devmem_is_allowed to support STRICT_DEVMEM, and it would invoke page_is_ram to check the addresses. Zong Li (2): riscv: Register System RAM as iomem resources riscv: Support CONFIG_STRICT_DEVMEM arch/riscv/Kconfig | 1 + arch/riscv/include/asm/io.h | 2 ++ arch/riscv/mm/init.c | 41 +++++++++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+) -- 2.27.0