From patchwork Mon May 27 03:02:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 13674541 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 0D7E1C25B75 for ; Mon, 27 May 2024 03:05:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBQdy-0005Gr-Mz; Sun, 26 May 2024 23:03:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBQdw-0005G5-BF for qemu-devel@nongnu.org; Sun, 26 May 2024 23:03:24 -0400 Received: from madrid.collaboradmins.com ([46.235.227.194]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBQdt-0002Kk-H8 for qemu-devel@nongnu.org; Sun, 26 May 2024 23:03:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1716779000; bh=Tu5TyqlElu/HvuCfmVVnw9v01yYT6ST81FTLbyCFI1k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=khSKciHuz5Qu0unlrnf+RI3+GLNIFgcBx6ZvOcQ6R0Fmil7QOgB3W+vWZjbAKjsdv Wa+EW2cuw6qa5hNHpU8VEKRiB9hUuL5JbdPdebBlYusjw5nKbTUArzIVHRf7qKhILm WvBPTmVlNxx+V/qF/Kz9hTK8mN3Q7szIBQtUmCPKBvPwgksyXtLWBUaaREynCfJ+AQ YV4/I9f+p9rhboIwduhTJnThXWTas1MDkXyk7MkVmWw3uBbvdQDUtEZLTxAUwOyl4j MT31TQ1u/5vEAMLLgJBgycbcqfn3D37V7FF3Ps7J2uZW5LVhkr44x3zIsKJv8nTFgU LL1sH4qrB6edA== Received: from workpc.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 7F81E3780627; Mon, 27 May 2024 03:03:18 +0000 (UTC) From: Dmitry Osipenko To: Akihiko Odaki , Huang Rui , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Gerd Hoffmann , "Michael S . Tsirkin" , Stefano Stabellini , Antonio Caggiano , "Dr . David Alan Gilbert" , Robert Beckett , Gert Wollny , =?utf-8?q?Alex_Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Gurchetan Singh , ernunes@redhat.com, Alyssa Ross , =?utf-8?q?Roger_Pau_Monn?= =?utf-8?q?=C3=A9?= , Alex Deucher , Stefano Stabellini , =?utf-8?q?Christian_K?= =?utf-8?q?=C3=B6nig?= , Xenia Ragiadakou , Pierre-Eric Pelloux-Prayer , Honglei Huang , Julia Zhang , Chen Jiqian , Yiwei Zhang Subject: [PATCH v13 10/13] virtio-gpu: Support suspension of commands processing Date: Mon, 27 May 2024 06:02:30 +0300 Message-ID: <20240527030233.3775514-11-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240527030233.3775514-1-dmitry.osipenko@collabora.com> References: <20240527030233.3775514-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Received-SPF: pass client-ip=46.235.227.194; envelope-from=dmitry.osipenko@collabora.com; helo=madrid.collaboradmins.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Check whether command processing has been finished; otherwise, stop processing commands and retry the command again next time. This allows us to support asynchronous execution of non-fenced commands needed for unmapping host blobs safely. Suggested-by: Akihiko Odaki Signed-off-by: Dmitry Osipenko --- hw/display/virtio-gpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index f3d2def9a49f..8e05a2d0c7c5 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1054,6 +1054,11 @@ void virtio_gpu_process_cmdq(VirtIOGPU *g) /* process command */ vgc->process_cmd(g, cmd); + /* command suspended */ + if (!cmd->finished && !(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) { + break; + } + QTAILQ_REMOVE(&g->cmdq, cmd, next); if (virtio_gpu_stats_enabled(g->parent_obj.conf)) { g->stats.requests++;