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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 B75A2FA3728 for ; Wed, 16 Oct 2019 11:52:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D84220854 for ; Wed, 16 Oct 2019 11:52:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392829AbfJPLwO (ORCPT ); Wed, 16 Oct 2019 07:52:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52584 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391195AbfJPLwL (ORCPT ); Wed, 16 Oct 2019 07:52:11 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D314418CB904; Wed, 16 Oct 2019 11:52:10 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-43.ams2.redhat.com [10.36.116.43]) by smtp.corp.redhat.com (Postfix) with ESMTP id C99235C1D6; Wed, 16 Oct 2019 11:52:08 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 1593C31E9E; Wed, 16 Oct 2019 13:52:05 +0200 (CEST) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Cc: Thomas Zimmermann , Daniel Vetter , Gerd Hoffmann , Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4 08/11] drm/ttm: add drm_gem_ttm_mmap() Date: Wed, 16 Oct 2019 13:52:00 +0200 Message-Id: <20191016115203.20095-9-kraxel@redhat.com> In-Reply-To: <20191016115203.20095-1-kraxel@redhat.com> References: <20191016115203.20095-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.63]); Wed, 16 Oct 2019 11:52:10 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add helper function to mmap ttm bo's using &drm_gem_object_funcs.mmap(). Note that with this code path access verification is done by drm_gem_mmap() (which calls drm_vma_node_is_allowed(()). The &ttm_bo_driver.verify_access() callback is is not used. v3: use ttm_bo_mmap_obj instead of ttm_bo_mmap_vma_setup Signed-off-by: Gerd Hoffmann --- include/drm/drm_gem_ttm_helper.h | 2 ++ drivers/gpu/drm/drm_gem_ttm_helper.c | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/drm/drm_gem_ttm_helper.h b/include/drm/drm_gem_ttm_helper.h index 6268f89c5a48..118cef76f84f 100644 --- a/include/drm/drm_gem_ttm_helper.h +++ b/include/drm/drm_gem_ttm_helper.h @@ -15,5 +15,7 @@ void drm_gem_ttm_print_info(struct drm_printer *p, unsigned int indent, const struct drm_gem_object *gem); +int drm_gem_ttm_mmap(struct drm_gem_object *gem, + struct vm_area_struct *vma); #endif diff --git a/drivers/gpu/drm/drm_gem_ttm_helper.c b/drivers/gpu/drm/drm_gem_ttm_helper.c index a534104d8bee..7412bfc5c05a 100644 --- a/drivers/gpu/drm/drm_gem_ttm_helper.c +++ b/drivers/gpu/drm/drm_gem_ttm_helper.c @@ -52,5 +52,22 @@ void drm_gem_ttm_print_info(struct drm_printer *p, unsigned int indent, } EXPORT_SYMBOL(drm_gem_ttm_print_info); +/** + * drm_gem_ttm_mmap() - mmap &ttm_buffer_object + * @gem: GEM object. + * @vma: vm area. + * + * This function can be used as &drm_gem_object_funcs.mmap + * callback. + */ +int drm_gem_ttm_mmap(struct drm_gem_object *gem, + struct vm_area_struct *vma) +{ + struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem); + + return ttm_bo_mmap_obj(vma, bo); +} +EXPORT_SYMBOL(drm_gem_ttm_mmap); + MODULE_DESCRIPTION("DRM gem ttm helpers"); MODULE_LICENSE("GPL"); -- 2.18.1