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=-10.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CE23CC4727C for ; Wed, 30 Sep 2020 17:17:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 68537207FB for ; Wed, 30 Sep 2020 17:17:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="MHTvilFi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725355AbgI3RRD (ORCPT ); Wed, 30 Sep 2020 13:17:03 -0400 Received: from crapouillou.net ([89.234.176.41]:33858 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726574AbgI3RRB (ORCPT ); Wed, 30 Sep 2020 13:17:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1601486218; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=K4FdEWnxywTg58dVaxSVDCY6CPJH5VaSpaRHUxXoYO8=; b=MHTvilFiFcEoV8ERIrzbb2lSr7HlhKRtVWEcAwCR0gCnShWJ90CkLCYMXEbi/NCMHZluMx 3RXGT3638NQsQ6QarhTsZOtv2vWScq5hVTDCU+HePWop1+dwSJwxWY9TD231Xz7E1Gqvr2 BbsN3E3GQO9nRiMlFePjh24K6Oc+ys8= From: Paul Cercueil To: Christoph Hellwig Cc: Stephen Rothwell , Dave Airlie , DRI , Linux Next Mailing List , Linux Kernel Mailing List , Paul Cercueil Subject: [PATCH 1/3] drm: Add and export function drm_gem_cma_create_noalloc Date: Wed, 30 Sep 2020 19:16:42 +0200 Message-Id: <20200930171644.299363-1-paul@crapouillou.net> In-Reply-To: <20200930165212.GA8833@lst.de> References: <20200930165212.GA8833@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org Add and export the function drm_gem_cma_create_noalloc(), which is just __drm_gem_cma_create() renamed. This function can be used by drivers that need to create a GEM object without allocating the backing memory. Signed-off-by: Paul Cercueil --- drivers/gpu/drm/drm_gem_cma_helper.c | 11 ++++++----- include/drm/drm_gem_cma_helper.h | 3 +++ 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c index 59b9ca207b42..6abc4b306832 100644 --- a/drivers/gpu/drm/drm_gem_cma_helper.c +++ b/drivers/gpu/drm/drm_gem_cma_helper.c @@ -34,7 +34,7 @@ */ /** - * __drm_gem_cma_create - Create a GEM CMA object without allocating memory + * drm_gem_cma_create_noalloc - Create a GEM CMA object without allocating memory * @drm: DRM device * @size: size of the object to allocate * @@ -45,8 +45,8 @@ * A struct drm_gem_cma_object * on success or an ERR_PTR()-encoded negative * error code on failure. */ -static struct drm_gem_cma_object * -__drm_gem_cma_create(struct drm_device *drm, size_t size) +struct drm_gem_cma_object * +drm_gem_cma_create_noalloc(struct drm_device *drm, size_t size) { struct drm_gem_cma_object *cma_obj; struct drm_gem_object *gem_obj; @@ -76,6 +76,7 @@ __drm_gem_cma_create(struct drm_device *drm, size_t size) kfree(cma_obj); return ERR_PTR(ret); } +EXPORT_SYMBOL_GPL(drm_gem_cma_create_noalloc); /** * drm_gem_cma_create - allocate an object with the given size @@ -98,7 +99,7 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, size = round_up(size, PAGE_SIZE); - cma_obj = __drm_gem_cma_create(drm, size); + cma_obj = drm_gem_cma_create_noalloc(drm, size); if (IS_ERR(cma_obj)) return cma_obj; @@ -476,7 +477,7 @@ drm_gem_cma_prime_import_sg_table(struct drm_device *dev, return ERR_PTR(-EINVAL); /* Create a CMA GEM buffer. */ - cma_obj = __drm_gem_cma_create(dev, attach->dmabuf->size); + cma_obj = drm_gem_cma_create_noalloc(dev, attach->dmabuf->size); if (IS_ERR(cma_obj)) return ERR_CAST(cma_obj); diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h index 2bfa2502607a..be2b8e3a8ab2 100644 --- a/include/drm/drm_gem_cma_helper.h +++ b/include/drm/drm_gem_cma_helper.h @@ -83,6 +83,9 @@ int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma); struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, size_t size); +struct drm_gem_cma_object * +drm_gem_cma_create_noalloc(struct drm_device *drm, size_t size); + extern const struct vm_operations_struct drm_gem_cma_vm_ops; #ifndef CONFIG_MMU -- 2.28.0