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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 9B41AC433DF for ; Tue, 19 May 2020 08:04:30 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 772CC207D8 for ; Tue, 19 May 2020 08:04:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 772CC207D8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CFFDA89F0A; Tue, 19 May 2020 08:04:29 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 923F789F0A for ; Tue, 19 May 2020 08:04:28 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D7BC1ACC2; Tue, 19 May 2020 08:04:29 +0000 (UTC) From: Thomas Zimmermann To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@linux.ie, daniel@ffwll.ch, sean@poorly.run, kraxel@redhat.com, emil.l.velikov@gmail.com, sam@ravnborg.org Subject: [PATCH v2 1/2] drm/shmem-helper: Add .gem_create_object helper that sets map_cached flag Date: Tue, 19 May 2020 10:04:22 +0200 Message-Id: <20200519080423.21695-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200519080423.21695-1-tzimmermann@suse.de> References: <20200519080423.21695-1-tzimmermann@suse.de> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The helper drm_gem_shmem_create_object_cached() allocates an GEM SHMEM object and sets the map_cached flag. Useful for drivers that want cached mappings. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/drm_gem_shmem_helper.c | 27 ++++++++++++++++++++++++++ include/drm/drm_gem_shmem_helper.h | 4 ++++ 2 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index df31e5782eed1..ab28b7ff864cb 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -433,6 +433,33 @@ bool drm_gem_shmem_purge(struct drm_gem_object *obj) } EXPORT_SYMBOL(drm_gem_shmem_purge); +/** + * drm_gem_shmem_create_object_cached - Create a shmem buffer object with + * cached mappings + * @dev: DRM device + * @size: Size of the object to allocate + * + * By default, shmem buffer objects use writecombine mappings. This + * function implements struct drm_driver.gem_create_object for shmem + * buffer objects with cached mappings. + * + * Returns: + * A struct drm_gem_shmem_object * on success or NULL negative on failure. + */ +struct drm_gem_object * +drm_gem_shmem_create_object_cached(struct drm_device *dev, size_t size) +{ + struct drm_gem_shmem_object *shmem; + + shmem = kzalloc(sizeof(*shmem), GFP_KERNEL); + if (!shmem) + return NULL; + shmem->map_cached = true; + + return &shmem->base; +} +EXPORT_SYMBOL(drm_gem_shmem_create_object_cached); + /** * drm_gem_shmem_dumb_create - Create a dumb shmem buffer object * @file: DRM file structure to create the dumb buffer for diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h index 294b2931c4cc0..5381f0c8cf6f6 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -132,6 +132,10 @@ struct drm_gem_shmem_object * drm_gem_shmem_create_with_handle(struct drm_file *file_priv, struct drm_device *dev, size_t size, uint32_t *handle); + +struct drm_gem_object * +drm_gem_shmem_create_object_cached(struct drm_device *dev, size_t size); + int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args); -- 2.26.2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel