Message ID | 1544623967-30010-22-git-send-email-bmeng.cn@gmail.com |
---|---|
State | Accepted |
Delegated to: | Andes |
Headers | show
Return-Path: <u-boot-bounces@lists.denx.de> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="aRRXEJBu"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 43FJrT2mxZz9s2P for <incoming@patchwork.ozlabs.org>; Thu, 13 Dec 2018 01:20:57 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id 1EC6DC2293E; Wed, 12 Dec 2018 14:14:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=FREEMAIL_FROM, RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 8A7C2C229BD; Wed, 12 Dec 2018 14:09:09 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 23A21C229B8; Wed, 12 Dec 2018 14:08:35 +0000 (UTC) Received: from mail-pg1-f194.google.com (mail-pg1-f194.google.com [209.85.215.194]) by lists.denx.de (Postfix) with ESMTPS id 0A937C2297E for <u-boot@lists.denx.de>; Wed, 12 Dec 2018 14:08:29 +0000 (UTC) Received: by mail-pg1-f194.google.com with SMTP id d72so8386036pga.9 for <u-boot@lists.denx.de>; Wed, 12 Dec 2018 06:08:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=fW4n2lIHV/7xdK3gn2FmYgN8J8kr8B7M1iR3iZrEcWI=; b=aRRXEJBuyEyeAq9/nkp2smh1GdnVKD2ApPOAb9wYES1uCryXa4wHFdxpHCkeY+MYoy /H5GnaudI0iZhScSCtwRb5FprS14OCMOW4CsaGFpMkCpN0qAUJfGxBVinZCfSm+Z61QQ E2rh/cgBNM3ot87yLUS8s9aLR7pv6/JnOSt7Sms7GsFmIJfsYF7Zmz1jbwGuWDZKG5gB lguoebU0mE1LA0Ib+3UYB5St6oyoHJubc2V/lmCusceyKJEW1cYJcveUelesL5iAYMqh VbBm6xoSZG6RprgCtmfUmhKxt8qNT6YksvYi5qM/ysWRhVMCZWwnTRFnu2D8g7Bth5sa VtqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=fW4n2lIHV/7xdK3gn2FmYgN8J8kr8B7M1iR3iZrEcWI=; b=kxy6lFSB3kK6SVzNHPRb8xnqi5cn+jHasrZO4COTk93x81RW321q39t9htGM4JBkIo 4PhDU+NHsalLvoJhx3IZg9FN9S40hFAnRmFar8BihPKo0WvDdha7l7gng1eu4JWbjmTl KGdgRoYHVRSqMw38kM9iRcwIQoVE60BH685akhu2wx10+S+gMRnxUZojT6zxjci3/DnU EhyB68wAwLwuX9oAiibVNoxVXL+nzEGUv4fAs1la3bnyf44cKS92k6dDCJL8sUoOb7+L AxbAWC6ZhYYKsVMO/c41ZbwpwmTDvifjK/1Xia6F7Ogamo0/aVCnnJIvUSiJsS2NPtSV XvBA== X-Gm-Message-State: AA+aEWaAampsUB8gNUStPriKiw0LovcFpdEFeGIWLDDUU/FQ7tjWOF1+ 4TIYzkkDT2ISIkxylBHxxr0= X-Google-Smtp-Source: AFSGD/XCZkyMEJTXEL8EGK2p7+56G81ku0gKT4IxNP+7mKyEBsZpGd/ZUzavbI3gKBCXGEOjxkTODg== X-Received: by 2002:a62:1541:: with SMTP id 62mr20462414pfv.230.1544623707788; Wed, 12 Dec 2018 06:08:27 -0800 (PST) Received: from ala-d2121-lx1.wrs.com (unknown-156-139.windriver.com. [147.11.156.139]) by smtp.gmail.com with ESMTPSA id o13sm21510331pfk.57.2018.12.12.06.08.26 (version=TLS1_1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 12 Dec 2018 06:08:27 -0800 (PST) From: Bin Meng <bmeng.cn@gmail.com> To: Rick Chen <rick@andestech.com>, Simon Glass <sjg@chromium.org>, Lukas Auer <lukas.auer@aisec.fraunhofer.de>, Anup Patel <anup@brainfault.org>, U-Boot Mailing List <u-boot@lists.denx.de> Date: Wed, 12 Dec 2018 06:12:43 -0800 Message-Id: <1544623967-30010-22-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1544623967-30010-1-git-send-email-bmeng.cn@gmail.com> References: <1544623967-30010-1-git-send-email-bmeng.cn@gmail.com> Subject: [U-Boot] [PATCH v5 21/25] riscv: Return to previous privilege level after trap handling X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion <u-boot.lists.denx.de> List-Unsubscribe: <https://lists.denx.de/options/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=unsubscribe> List-Archive: <http://lists.denx.de/pipermail/u-boot/> List-Post: <mailto:u-boot@lists.denx.de> List-Help: <mailto:u-boot-request@lists.denx.de?subject=help> List-Subscribe: <https://lists.denx.de/listinfo/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=subscribe> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" <u-boot-bounces@lists.denx.de> |
Series |
riscv: Adding RISC-V CPU and timer driver
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expand
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diff --git a/arch/riscv/cpu/mtrap.S b/arch/riscv/cpu/mtrap.S index da307e4..407ecfa 100644 --- a/arch/riscv/cpu/mtrap.S +++ b/arch/riscv/cpu/mtrap.S @@ -68,14 +68,6 @@ trap_entry: jal handle_trap csrw MODE_PREFIX(epc), a0 -#ifdef CONFIG_RISCV_SMODE - /* Remain in S-mode after sret */ - li t0, SSTATUS_SPP -#else - /* Remain in M-mode after mret */ - li t0, MSTATUS_MPP -#endif - csrs MODE_PREFIX(status), t0 LREG x1, 1 * REGBYTES(sp) LREG x3, 3 * REGBYTES(sp) LREG x4, 4 * REGBYTES(sp)