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=-16.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,T_DKIMWL_WL_MED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 E7FDFC04A6B for ; Mon, 6 May 2019 16:31:50 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A203A20B7C for ; Mon, 6 May 2019 16:31:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZSFHbQPv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A203A20B7C Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id F3CFD6B0275; Mon, 6 May 2019 12:31:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E4DEF6B0277; Mon, 6 May 2019 12:31:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D3AEB6B0278; Mon, 6 May 2019 12:31:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) by kanga.kvack.org (Postfix) with ESMTP id A9A706B0275 for ; Mon, 6 May 2019 12:31:45 -0400 (EDT) Received: by mail-oi1-f197.google.com with SMTP id p15so4532935oic.11 for ; Mon, 06 May 2019 09:31:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=eYbhxmTmdaiTVlq2aRmj2n9QkL6CX4/S4opJ9oDHFhE=; b=fD7qdH3Odp8kVHZg3EL7cv4XYcSSuLboJFUSbI9ZvQ4iWf8Turx4qwURo98rAuMm6k fbJasEom0UMmJ7go1i8Wr6UZox6nuLaE2EUSTxigVtskMoSWiIrWjYliEbANE44ERZLl jHmd7x4u0wHR/1XaDTjcgcKKLZHo30EU9AZC6vg6oUbMgc83hzJSWwa75iMvrncp+6F3 4z3KpWzhc6EVaC27QvVO20KGgo9NYuEXwGCS2V1h70X7SRgBJTLDF2U+CPwRaoqD1uKd yDBWD+qKFuQhsHDSx4kOsBuG9Gn6Nh4HX4AkiobSlMgvUQCg3fKSmQLR/cGMFG7uUr2B v+Kg== X-Gm-Message-State: APjAAAVlywf2Fn6gPP6cz8wibL/Ze5xuRkg3YJnfMe9aCLji8hRmdfb/ c8CLqNZtZBtKZQdqhUKj6Poi2EcdZMUIfllZ7eDxvSXZZ7+uk4D1X+NqAou0ZTiHTPpHh/CtZsV SkRX66eH2dcKlUKXWidrl1B7SF3BpKybimF2vi0xB6HC/+wIb5SxUfq2pQIRUVwpmgA== X-Received: by 2002:aca:b30a:: with SMTP id c10mr1740788oif.74.1557160305300; Mon, 06 May 2019 09:31:45 -0700 (PDT) X-Received: by 2002:aca:b30a:: with SMTP id c10mr1740735oif.74.1557160304486; Mon, 06 May 2019 09:31:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557160304; cv=none; d=google.com; s=arc-20160816; b=J5xyOUc7PSfkoHqXoBfBjxDZwDyQAYdvuDx2Gc3rF2Gbrt8o8ZmS7zkEDHeu/F0OsJ fhVraer7XegbWMSBzK8O4yiwXeo7imAEl0fcPAI9PGPLMGuj6XRXW5a5zxlfvw915n1q L8gl+gF/ajXywUoD+A/uyjP2ufRliDhuP3IBje6Pz9rMBmqdv3GfVRqY9+GA3DrwNQOx T6SOI8sI8K6jcH36FTUP1FdT5KVO8O8i9htHkMaqqXCVkqvxEy1axu3GVNpPkIkK6m3T k+A30E7WUgNZnclSIBkSbJsbEhuDvKU95RJYyqZ8CRnnsoaLemfXGHMCaGCnldDlBnep N8qQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:dkim-signature; bh=eYbhxmTmdaiTVlq2aRmj2n9QkL6CX4/S4opJ9oDHFhE=; b=zls7cO5Qq0J4qMsp7ShyFLpPF0Dx4pjG9cCpNUBmjpk+NUH0yhMxk19aRp65u12zjW EKX6H5XtLH6ConGz+EQ63S/uxVp8ZO5r/iCyNPjJ2vdAay1Apdt/ftHMs6lU24D9hoR/ /yCpoUEET0xgPcoy/o82HHV3JpTQoI9wjtHMhDMXpzd+tU8FKImGhkQ1rNL3CmIjLyjh rJ07xIQqH7l8laPFSX/I6SiPTQxR9HtGoImYshXFFxb5Jy6YLxNfsd6jVgee9/uyd8Zx 5u6ttEvJKqmgq84gBwzUoVJW6urRs4cBKyCvg5Z5L19O0Vv7e8IPDCiCYyc6eKuk78tk HxEw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=ZSFHbQPv; spf=pass (google.com: domain of 3cghqxaokcge9mcqdxjmukfnnfkd.bnlkhmtw-llju9bj.nqf@flex--andreyknvl.bounces.google.com designates 209.85.220.73 as permitted sender) smtp.mailfrom=3cGHQXAoKCGE9MCQDXJMUKFNNFKD.BNLKHMTW-LLJU9BJ.NQF@flex--andreyknvl.bounces.google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from mail-sor-f73.google.com (mail-sor-f73.google.com. [209.85.220.73]) by mx.google.com with SMTPS id y6sor5040314ote.22.2019.05.06.09.31.44 for (Google Transport Security); Mon, 06 May 2019 09:31:44 -0700 (PDT) Received-SPF: pass (google.com: domain of 3cghqxaokcge9mcqdxjmukfnnfkd.bnlkhmtw-llju9bj.nqf@flex--andreyknvl.bounces.google.com designates 209.85.220.73 as permitted sender) client-ip=209.85.220.73; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=ZSFHbQPv; spf=pass (google.com: domain of 3cghqxaokcge9mcqdxjmukfnnfkd.bnlkhmtw-llju9bj.nqf@flex--andreyknvl.bounces.google.com designates 209.85.220.73 as permitted sender) smtp.mailfrom=3cGHQXAoKCGE9MCQDXJMUKFNNFKD.BNLKHMTW-LLJU9BJ.NQF@flex--andreyknvl.bounces.google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=eYbhxmTmdaiTVlq2aRmj2n9QkL6CX4/S4opJ9oDHFhE=; b=ZSFHbQPvMQhkrf29+rXmES4x80rxWQfO3CRg3EirSkEvMHaN6TChbsHuGqG8tqYPqI EOCA65HA1vwG2VBAq4EN+A4OM16jXXWhM8t5gUCVAGxaFpj7A96cWjckSSXVB9ifgUBP JPRXtbLz3WvjXz6TEKimgkTZH4CSKnvPcLkcG+UwjiKkw5OJqJ0dywa/iWl3MUEMoYLx yX/R0TAlH28V7Dy/lDpZ2CQKiEy+5rLrSQMyM1Z1SBWcw4VX+lOfzjflOLQGIDoNcKIy Lw+nu7cdx5CVE6SIyoKDCFcQFHBzYbom0atBI7FulTuqD2oMzEvZRTJLiB0pdkfBeBX2 irnA== X-Google-Smtp-Source: APXvYqzdzQlfaHkw0Qwo4QQtxGeWhxSSS13Ps1SOtj6ReWwWjESZwRkhi/LnnldOgTKgizVRLfncWXFiUgbgbiQx X-Received: by 2002:a9d:7d04:: with SMTP id v4mr16958653otn.185.1557160304159; Mon, 06 May 2019 09:31:44 -0700 (PDT) Date: Mon, 6 May 2019 18:30:58 +0200 In-Reply-To: Message-Id: <03fe9d923db75cf72678f3ce103838e67390751a.1557160186.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.21.0.1020.gf2820cf01a-goog Subject: [PATCH v15 12/17] drm/radeon, arm64: untag user pointers in radeon_gem_userptr_ioctl From: Andrey Konovalov To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Catalin Marinas , Vincenzo Frascino , Will Deacon , Mark Rutland , Andrew Morton , Greg Kroah-Hartman , Kees Cook , Yishai Hadas , Felix Kuehling , Alexander Deucher , Christian Koenig , Mauro Carvalho Chehab , Jens Wiklander , Alex Williamson , Leon Romanovsky , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Robin Murphy , Luc Van Oostenryck , Dave Martin , Kevin Brodsky , Szabolcs Nagy , Andrey Konovalov Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This patch is a part of a series that extends arm64 kernel ABI to allow to pass tagged user pointers (with the top byte set to something else other than 0x00) as syscall arguments. In radeon_gem_userptr_ioctl() an MMU notifier is set up with a (tagged) userspace pointer. The untagged address should be used so that MMU notifiers for the untagged address get correctly matched up with the right BO. This funcation also calls radeon_ttm_tt_pin_userptr(), which uses provided user pointers for vma lookups, which can only by done with untagged pointers. This patch untags user pointers in radeon_gem_userptr_ioctl(). Signed-off-by: Andrey Konovalov --- drivers/gpu/drm/radeon/radeon_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 44617dec8183..90eb78fb5eb2 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -291,6 +291,8 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data, uint32_t handle; int r; + args->addr = untagged_addr(args->addr); + if (offset_in_page(args->addr | args->size)) return -EINVAL; -- 2.21.0.1020.gf2820cf01a-goog