Message ID | 1516326648-22775-6-git-send-email-linuxram@us.ibm.com (mailing list archive) |
---|---|
State | Accepted |
Commit | 1b4037deadb64e3a26c02f0e9852c257ee92a6e3 |
Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zN42h67vKz9sNr for <patchwork-incoming@ozlabs.org>; Fri, 19 Jan 2018 13:07:08 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="YS/0RcTa"; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3zN42h48R2zF0Qw for <patchwork-incoming@ozlabs.org>; Fri, 19 Jan 2018 13:07:08 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="YS/0RcTa"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:400d:c0d::241; helo=mail-qt0-x241.google.com; envelope-from=ram.n.pai@gmail.com; receiver=<UNKNOWN>) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="YS/0RcTa"; dkim-atps=neutral Received: from mail-qt0-x241.google.com (mail-qt0-x241.google.com [IPv6:2607:f8b0:400d:c0d::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zN3j75GFDzF0wN for <linuxppc-dev@lists.ozlabs.org>; Fri, 19 Jan 2018 12:51:55 +1100 (AEDT) Received: by mail-qt0-x241.google.com with SMTP id f4so438473qtj.6 for <linuxppc-dev@lists.ozlabs.org>; Thu, 18 Jan 2018 17:51:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=1uF75o45nO9CaDIwFBEYPROLioOOI9W40pdIjeWXoyQ=; b=YS/0RcTaNefMMtjfI42eYiGJc/xxbhblV7UNwBca1HhzjvvYZ8DYTpSj2eUbBtCFay ulta1JH84shAEe7q6a3hPBLGNkIPxxi5NeiKx9wKylVDIyyBD03idGkzxGUQP3kd1d74 6Y0cwuqW4T2MsuSqTZ4QEF0yrE1WmkGtQ6521hYD+7cGStbJqaPhL2ET6AuD4KsinUtM tKPFcAdUtJQ64KKVwYgjGYCHdaumwVOVK09BwGESWl12NdgjvLXIia5NfD4Nweetvcye VGWX1g5yeQ91ca0c3B3/UpLGeds6uIjU0nNmUbqoJ/CA1GY26wvKvpomg2vl1bU7EqBN N5tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=1uF75o45nO9CaDIwFBEYPROLioOOI9W40pdIjeWXoyQ=; b=E0+Vhg2w/ow8iGIj9AiVON2F6y3ZHftQRLlMDWEjHnRyMJ5FVap1+dDbnLtSQWbkNF IOwQ92y74ZQHtesJX3XvAkp57Q7vHpZcpNc/xVF5ZmCqOHNk6FImXI8Uphbwhp3ApePT GadWvmSMQKPUgprCJqkyLHzanH44ZEE8Z0tXSvLavoldn6rk2Uz1wVJG/jhxDMaLMKS4 xqc3ti5ikj89I4CgavNuveLGmpYC/DZ3HD1LYv/PnJnpkoA/nniePJHeJqp8DP9rgnxB Dng7Xp9fyn3dAR+O34Ryv3S3HLD3HR53/Ihwe7sebEuhQdzqgjsP9ErHENaC4lGMw6HU O2ZA== X-Gm-Message-State: AKwxytcUzwGZAy8Ma7JK8DqP1QMWxinNc9cNH8o2CWogrGo1ar4XA2Xw tjqopy//CWo/rp0o8qmWooc= X-Google-Smtp-Source: ACJfBovRVh9Np+pdtD9c7AOr3TQ050MMO54e1O9T0LRMS3AL7UmKDitOkUdpotSU5DViNKpuJItlXQ== X-Received: by 10.237.38.132 with SMTP id q4mr28628041qtd.134.1516326713866; Thu, 18 Jan 2018 17:51:53 -0800 (PST) Received: from localhost.localdomain (50-39-100-161.bvtn.or.frontiernet.net. [50.39.100.161]) by smtp.gmail.com with ESMTPSA id c127sm5483161qke.78.2018.01.18.17.51.51 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 Jan 2018 17:51:53 -0800 (PST) From: Ram Pai <linuxram@us.ibm.com> To: mpe@ellerman.id.au, mingo@redhat.com, akpm@linux-foundation.org, corbet@lwn.net, arnd@arndb.de Subject: [PATCH v10 05/27] powerpc: helper function to read, write AMR, IAMR, UAMOR registers Date: Thu, 18 Jan 2018 17:50:26 -0800 Message-Id: <1516326648-22775-6-git-send-email-linuxram@us.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1516326648-22775-1-git-send-email-linuxram@us.ibm.com> References: <1516326648-22775-1-git-send-email-linuxram@us.ibm.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.24 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: linux-arch@vger.kernel.org, ebiederm@xmission.com, linux-doc@vger.kernel.org, x86@kernel.org, dave.hansen@intel.com, linux-kernel@vger.kernel.org, linuxram@us.ibm.com, mhocko@kernel.org, linux-mm@kvack.org, paulus@samba.org, aneesh.kumar@linux.vnet.ibm.com, linux-kselftest@vger.kernel.org, bauerman@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, khandual@linux.vnet.ibm.com Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> |
Series |
powerpc, mm: Memory Protection Keys
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expand
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diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c index e2f3992..6e8df6e 100644 --- a/arch/powerpc/mm/pkeys.c +++ b/arch/powerpc/mm/pkeys.c @@ -71,3 +71,39 @@ void pkey_mm_init(struct mm_struct *mm) return; mm_pkey_allocation_map(mm) = initial_allocation_mask; } + +static inline u64 read_amr(void) +{ + return mfspr(SPRN_AMR); +} + +static inline void write_amr(u64 value) +{ + mtspr(SPRN_AMR, value); +} + +static inline u64 read_iamr(void) +{ + if (!likely(pkey_execute_disable_supported)) + return 0x0UL; + + return mfspr(SPRN_IAMR); +} + +static inline void write_iamr(u64 value) +{ + if (!likely(pkey_execute_disable_supported)) + return; + + mtspr(SPRN_IAMR, value); +} + +static inline u64 read_uamor(void) +{ + return mfspr(SPRN_UAMOR); +} + +static inline void write_uamor(u64 value) +{ + mtspr(SPRN_UAMOR, value); +}