From patchwork Mon May 6 08:26:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 10930693 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 70DE2924 for ; Mon, 6 May 2019 08:27:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 613982849B for ; Mon, 6 May 2019 08:27:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5567C285D9; Mon, 6 May 2019 08:27:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 03CE62849B for ; Mon, 6 May 2019 08:27:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8B91089359; Mon, 6 May 2019 08:26:58 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7E7938923C for ; Mon, 6 May 2019 08:26:56 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0B788AEBC; Mon, 6 May 2019 08:26:55 +0000 (UTC) From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@linux.ie, kraxel@redhat.com, christian.koenig@amd.com, ray.huang@amd.com, hdegoede@redhat.com, noralf@tronnes.org, sam@ravnborg.org, z.liuxinliang@hisilicon.com, zourongrong@gmail.com, kong.kongxinwei@hisilicon.com, puck.chen@hisilicon.com Subject: [PATCH v4 03/19] drm: Add |struct drm_gem_vram_object| callbacks for |struct drm_driver| Date: Mon, 6 May 2019 10:26:33 +0200 Message-Id: <20190506082649.942-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190506082649.942-1-tzimmermann@suse.de> References: <20190506082649.942-1-tzimmermann@suse.de> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Zimmermann , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The provided helpers can be used for the respective callback functions in |struct drm_driver|. v4: * cleanups from checkpatch.pl v2: * documentation fixes Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/drm_gem_vram_helper.c | 49 +++++++++++++++++++++++++++ include/drm/drm_gem_vram_helper.h | 10 ++++++ 2 files changed, 59 insertions(+) diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c index e929a18c03f3..41f971908b78 100644 --- a/drivers/gpu/drm/drm_gem_vram_helper.c +++ b/drivers/gpu/drm/drm_gem_vram_helper.c @@ -460,3 +460,52 @@ int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo, filp->private_data); } EXPORT_SYMBOL(drm_gem_vram_bo_driver_verify_access); + +/* + * Helpers for struct drm_driver + */ + +/** + * drm_gem_vram_driver_gem_free_object_unlocked() - \ + Implements &struct drm_driver.gem_free_object_unlocked + * @gem: GEM object. Refers to &struct drm_gem_vram_object.gem + */ +void drm_gem_vram_driver_gem_free_object_unlocked(struct drm_gem_object *gem) +{ + struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(gem); + + drm_gem_vram_put(gbo); +} +EXPORT_SYMBOL(drm_gem_vram_driver_gem_free_object_unlocked); + +/** + * drm_gem_vram_driver_dumb_mmap_offset() - \ + Implements &struct drm_driver.dumb_mmap_offset + * @file: DRM file pointer. + * @dev: DRM device. + * @handle: GEM handle + * @offset: Returns the mapping's memory offset on success + * + * Returns: + * 0 on success, or + * a negative errno code otherwise. + */ +int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + uint32_t handle, uint64_t *offset) +{ + struct drm_gem_object *gem; + struct drm_gem_vram_object *gbo; + + gem = drm_gem_object_lookup(file, handle); + if (!gem) + return -ENOENT; + + gbo = drm_gem_vram_of_gem(gem); + *offset = drm_gem_vram_mmap_offset(gbo); + + drm_gem_object_put_unlocked(gem); + + return 0; +} +EXPORT_SYMBOL(drm_gem_vram_driver_dumb_mmap_offset); diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h index f92e0f531a68..d6a75d860f4e 100644 --- a/include/drm/drm_gem_vram_helper.h +++ b/include/drm/drm_gem_vram_helper.h @@ -99,4 +99,14 @@ void drm_gem_vram_bo_driver_evict_flags(struct ttm_buffer_object *bo, int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo, struct file *filp); +/* + * Helpers for struct drm_driver + */ + +void drm_gem_vram_driver_gem_free_object_unlocked(struct drm_gem_object *gem); + +int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + uint32_t handle, uint64_t *offset); + #endif