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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 B53ADC10DCE for ; Thu, 12 Mar 2020 08:10:11 +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 9311D20650 for ; Thu, 12 Mar 2020 08:10:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="BLZlM4Vs" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9311D20650 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org 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 5D9A16EA8B; Thu, 12 Mar 2020 08:08:53 +0000 (UTC) Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by gabe.freedesktop.org (Postfix) with ESMTPS id B265B6E975 for ; Wed, 11 Mar 2020 11:20:28 +0000 (UTC) Received: by mail-pl1-x643.google.com with SMTP id t3so948944plz.9 for ; Wed, 11 Mar 2020 04:20:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=HbNivqIBs4pO6i4JqhZUJefImajxMHo9WsbKwRa5KuU=; b=BLZlM4VsvKYHd4VLsroG9x3pc9BkKgFIdNxhZjBjjm/+j1sEDSnWY3afVjyUu7R6PM bisd04NTMJZyGDEK6+/B/pplIvIEPM5REXLbhgmATI7bvqLjrR1V4s3Oo7De/j21DCt2 p3alVM4+Krbfjf5UHngcmpJiWwKY/s217aLkA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HbNivqIBs4pO6i4JqhZUJefImajxMHo9WsbKwRa5KuU=; b=nWI8XHEcsdpl4WDogplG4CqZU6Z3eAYrll4KKvd40AT2PsBF8GdjVDnLxVY2C2dTfo hAQrVCQkme+OA8r1fF6J2BGp+MxFzEeX/FwXtR97OOd4VdqrGnHUrqDdLu9zKQUUhZDl 1pXU8Z8JTWG6Km0U+Mc5YpVBSxW4+7MaAI8ZjK03KWMs+qXFtiw4T1b5U9x+A9J3fNkC 0q/qiFs/mza4yYdUO6zFBBqKWOKyZft57WBW1s44zfp8ahpxjjNXCbjPtMq5u4l9W2BD cxH/vmetzdNA/inm9IRIcq0huDT3EQPBU6pFMzEhBuIvtu4BYqZja3fapHbvA3XCAVqM HeXg== X-Gm-Message-State: ANhLgQ1Wl4CwrLfU7QdDAVjX3MtexkN5UohwqjQ+yb1JIM4IbWzYDfMg hBKiV9J4TxkNxDr7BUuSoIHs3g== X-Google-Smtp-Source: ADFU+vtvpxb5f2yDL72gUW/DV61OyipUNCKf7TWHyZgzhYWvjtGBXk+7g0gih+9tvtIh3gj1Ol64hA== X-Received: by 2002:a17:902:aa44:: with SMTP id c4mr2543611plr.73.1583925628333; Wed, 11 Mar 2020 04:20:28 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:30f2:7a9c:387e:6c7]) by smtp.gmail.com with ESMTPSA id i72sm23110641pgd.88.2020.03.11.04.20.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Mar 2020 04:20:27 -0700 (PDT) From: David Stevens To: Gerd Hoffmann , David Airlie Subject: [PATCH v3 2/4] drm/prime: add support for virtio exported objects Date: Wed, 11 Mar 2020 20:20:02 +0900 Message-Id: <20200311112004.47138-3-stevensd@chromium.org> X-Mailer: git-send-email 2.25.1.481.gfbce0eb801-goog In-Reply-To: <20200311112004.47138-1-stevensd@chromium.org> References: <20200311112004.47138-1-stevensd@chromium.org> MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 12 Mar 2020 08:08:13 +0000 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: dri-devel@lists.freedesktop.org, virtio-dev@lists.oasis-open.org, Thomas Zimmermann , "Michael S . Tsirkin" , Jason Wang , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, David Stevens , linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This change exposes dma-buf's get_uuid callback to PRIME drivers. Signed-off-by: David Stevens --- drivers/gpu/drm/drm_prime.c | 23 +++++++++++++++++++++++ include/drm/drm_drv.h | 10 ++++++++++ 2 files changed, 33 insertions(+) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 86d9b0e45c8c..50fed8497d3c 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -779,6 +779,28 @@ int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) } EXPORT_SYMBOL(drm_gem_dmabuf_mmap); +/** + * drm_gem_dmabuf_get_uuid - dma_buf get_uuid implementation for GEM + * @dma_buf: buffer to query + * @uuid: uuid outparam + * + * Queries the buffer's virtio UUID. This can be used as the + * &dma_buf_ops.get_uuid callback. Calls into &drm_driver.gem_prime_get_uuid. + * + * Returns 0 on success or a negative error code on failure. + */ +int drm_gem_dmabuf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid) +{ + struct drm_gem_object *obj = dma_buf->priv; + struct drm_device *dev = obj->dev; + + if (!dev->driver->gem_prime_get_uuid) + return -ENODEV; + + return dev->driver->gem_prime_get_uuid(obj, uuid); +} +EXPORT_SYMBOL(drm_gem_dmabuf_get_uuid); + static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = { .cache_sgt_mapping = true, .attach = drm_gem_map_attach, @@ -789,6 +811,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = { .mmap = drm_gem_dmabuf_mmap, .vmap = drm_gem_dmabuf_vmap, .vunmap = drm_gem_dmabuf_vunmap, + .get_uuid = drm_gem_dmabuf_get_uuid, }; /** diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 77685ed7aa65..61e3ff341844 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -29,6 +29,7 @@ #include #include +#include #include @@ -639,6 +640,15 @@ struct drm_driver { int (*gem_prime_mmap)(struct drm_gem_object *obj, struct vm_area_struct *vma); + /** + * @gem_prime_get_uuid + * + * get_uuid hook for GEM drivers. Retrieves the virtio uuid of the + * given GEM buffer. + */ + int (*gem_prime_get_uuid)(struct drm_gem_object *obj, + uuid_t *uuid); + /** * @dumb_create: * -- 2.25.1.481.gfbce0eb801-goog _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel