From patchwork Sun Apr 24 19:04:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12825041 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1148AC433F5 for ; Sun, 24 Apr 2022 19:05:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C1EA10FF9B; Sun, 24 Apr 2022 19:05:00 +0000 (UTC) Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B62A10FEB9 for ; Sun, 24 Apr 2022 19:04:49 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: dmitry.osipenko) with ESMTPSA id 3167A1F44DAC DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1650827088; bh=isR8z997diym4El61jLlrCRI0NqP4AALskkuO0PNVVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L+QwIJb6w2n/XAAyRKeNsAXld9L8radrHbzJxg1vTHMCpHDTWtMtFNHWoQ5xQb+JK IY2YE7R2q1qJyQIrIRCtwgIhvWntrMkf7xi2Nc63J2+qVGR6KVJuFM/6+QA7L9l/Gf +iDMcLWpxouqnCj0xrC3bUaqL8EQqG7mIb73TgGWTf/Ubxp5F1ZRLBBQh4Wj9UtIhN sfh3bdXZYKe1Ogc0aL1ZeIPqh9m+uVGQB4SSa6vPdMMi2ZCa7OsbUT0uyvEgYk+Ga3 p7xkY9kUeMtGXyS257JuFEZ5HPkxnXuKLX9NK0oE7Hyj70ikqdjo1lQLQrLfzEtCks Ll3rN7RdLF9UQ== From: Dmitry Osipenko To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Daniel Vetter , Daniel Almeida , Gert Wollny , Gustavo Padovan , Daniel Stone , Tomeu Vizoso , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Steven Price , Alyssa Rosenzweig , Rob Clark , Emil Velikov , Robin Murphy , Qiang Yu , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= Subject: [PATCH v5 07/17] drm/virtio: Simplify error handling of virtio_gpu_object_create() Date: Sun, 24 Apr 2022 22:04:14 +0300 Message-Id: <20220424190424.540501-8-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220424190424.540501-1-dmitry.osipenko@collabora.com> References: <20220424190424.540501-1-dmitry.osipenko@collabora.com> 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: Dmitry Osipenko , Dmitry Osipenko , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Change the order of SHMEM initialization and reservation locking to make code cleaner a tad and to prepare to transitioning of the common GEM SHMEM code to use the GEM's reservation lock instead of the shmem.page_lock. There is no need to lock reservation during allocation of the SHMEM pages because the lock is needed only to avoid racing with the async host-side allocation. Hence we can safely move the SHMEM initialization out of the reservation lock. Signed-off-by: Dmitry Osipenko --- drivers/gpu/drm/virtio/virtgpu_object.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 21c19cdedce0..18f70ef6b4d0 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -236,6 +236,10 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, bo->dumb = params->dumb; + ret = virtio_gpu_object_shmem_init(vgdev, bo, &ents, &nents); + if (ret != 0) + goto err_put_id; + if (fence) { ret = -ENOMEM; objs = virtio_gpu_array_alloc(1); @@ -248,15 +252,6 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, goto err_put_objs; } - ret = virtio_gpu_object_shmem_init(vgdev, bo, &ents, &nents); - if (ret != 0) { - if (fence) - virtio_gpu_array_unlock_resv(objs); - virtio_gpu_array_put_free(objs); - virtio_gpu_free_object(&shmem_obj->base); - return ret; - } - if (params->blob) { if (params->blob_mem == VIRTGPU_BLOB_MEM_GUEST) bo->guest_blob = true;