From patchwork Tue Aug 5 14:11:04 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 4679211 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A6BFFC0338 for ; Tue, 5 Aug 2014 14:12:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DBE5B201CE for ; Tue, 5 Aug 2014 14:11:59 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 9382E2018B for ; Tue, 5 Aug 2014 14:11:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 982E589C18; Tue, 5 Aug 2014 07:11:51 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pegasos-out.vodafone.de (pegasos-out.vodafone.de [80.84.1.38]) by gabe.freedesktop.org (Postfix) with ESMTP id C1B5089C9C for ; 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a=rsa-sha256; c=relaxed/relaxed; d=vodafone.de; s=mail; t=1407247880; bh=e8m5bbJVUtMA0Q4C+oBzjWdCHcvBRhAqKZyNVXdzsEE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=E9qGBzRG2jfcsSsAzS+nf81sLKVIszmPjITg74+6svVqFmg6ulUx47Re9ENN6t9tE 9h/GGtpThj8D+f+lEVLfcy5smkKjjlgI1xK/fC/Kue5Q8WxdmvZo3i1xLDA7LvbscD m6C/clFip5XVKOGR+C32a6JlrpLJptITXEQK9L/0= X-DKIM: OpenDKIM Filter v2.0.2 smtp-02.vodafone.de D5A56E558E X-Virus-Scanned: amavisd-new at vodafone.de Received: from smtp-02.vodafone.de ([127.0.0.1]) by localhost (xsmail-dmz6.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sbWPxVhS5pGU; Tue, 5 Aug 2014 16:11:09 +0200 (CEST) From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: alexdeucher@gmail.com Subject: [PATCH 2/5] drm/radeon: add userptr flag to limit it to anonymous memory Date: Tue, 5 Aug 2014 16:11:04 +0200 Message-Id: <1407247867-7093-2-git-send-email-deathsimple@vodafone.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1407247867-7093-1-git-send-email-deathsimple@vodafone.de> References: <1407247867-7093-1-git-send-email-deathsimple@vodafone.de> MIME-Version: 1.0 Cc: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Christian König Signed-off-by: Christian König --- drivers/gpu/drm/radeon/radeon_gem.c | 3 ++- drivers/gpu/drm/radeon/radeon_ttm.c | 8 ++++++++ include/uapi/drm/radeon_drm.h | 3 ++- 3 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 993ab22..032736b 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -290,7 +290,8 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data, return -EACCES; /* reject unknown flag values */ - if (args->flags & ~RADEON_GEM_USERPTR_READONLY) + if (args->flags & ~(RADEON_GEM_USERPTR_READONLY | + RADEON_GEM_USERPTR_ANONONLY)) return -EINVAL; /* readonly pages not tested on older hardware */ diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 0109090..d63e698 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -542,6 +542,14 @@ static int radeon_ttm_tt_pin_userptr(struct ttm_tt *ttm) ttm->num_pages * PAGE_SIZE)) return -EFAULT; + if (gtt->userflags & RADEON_GEM_USERPTR_ANONONLY) { + unsigned long end = gtt->userptr + ttm->num_pages * PAGE_SIZE; + struct vm_area_struct *vma; + vma = find_vma(gtt->usermm, gtt->userptr); + if (!vma || vma->vm_file || vma->vm_end < end) + return -EPERM; + } + do { unsigned num_pages = ttm->num_pages - pinned; uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE; diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h index a18ec54..4080ad3 100644 --- a/include/uapi/drm/radeon_drm.h +++ b/include/uapi/drm/radeon_drm.h @@ -810,7 +810,8 @@ struct drm_radeon_gem_create { uint32_t flags; }; -#define RADEON_GEM_USERPTR_READONLY 0x1 +#define RADEON_GEM_USERPTR_READONLY (1 << 0) +#define RADEON_GEM_USERPTR_ANONONLY (1 << 1) struct drm_radeon_gem_userptr { uint64_t addr;