From patchwork Fri Aug 16 02:35:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Tina" X-Patchwork-Id: 11096695 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7DEA6112C for ; Fri, 16 Aug 2019 02:36:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 655CB289BA for ; Fri, 16 Aug 2019 02:36:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 535BC289CF; Fri, 16 Aug 2019 02:36:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2B117289BA for ; Fri, 16 Aug 2019 02:36:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726668AbfHPCgE (ORCPT ); Thu, 15 Aug 2019 22:36:04 -0400 Received: from mga07.intel.com ([134.134.136.100]:39512 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726414AbfHPCgC (ORCPT ); Thu, 15 Aug 2019 22:36:02 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Aug 2019 19:35:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,391,1559545200"; d="scan'208";a="194894840" Received: from gvt.bj.intel.com ([10.238.158.180]) by fmsmga001.fm.intel.com with ESMTP; 15 Aug 2019 19:35:47 -0700 From: Tina Zhang To: intel-gvt-dev@lists.freedesktop.org Cc: Tina Zhang , kraxel@redhat.com, alex.williamson@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, hang.yuan@intel.com, zhiyuan.lv@intel.com Subject: [PATCH v5 2/6] vfio: Introduce vGPU display irq type Date: Fri, 16 Aug 2019 10:35:24 +0800 Message-Id: <20190816023528.30210-3-tina.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190816023528.30210-1-tina.zhang@intel.com> References: <20190816023528.30210-1-tina.zhang@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce vGPU specific irq type VFIO_IRQ_TYPE_GFX, and VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ as the subtype for vGPU display. Introduce vfio_irq_info_cap_display_plane_events capability to notify user space with the vGPU's plane update events v2: - Add VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ description. (Alex & Kechen) - Introduce vfio_irq_info_cap_display_plane_events. (Gerd & Alex) Signed-off-by: Tina Zhang --- include/uapi/linux/vfio.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index d83c9f136a5b..21ac69f0e1a9 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -465,6 +465,27 @@ struct vfio_irq_info_cap_type { __u32 subtype; /* type specific */ }; +#define VFIO_IRQ_TYPE_GFX (1) +/* + * vGPU vendor sub-type + * vGPU device display related interrupts e.g. vblank/pageflip + */ +#define VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ (1) + +/* + * Display capability of using one eventfd to notify user space with the + * vGPU's plane update events. + * cur_event_val: eventfd value stands for cursor plane change event. + * pri_event_val: eventfd value stands for primary plane change event. + */ +#define VFIO_IRQ_INFO_CAP_DISPLAY 4 + +struct vfio_irq_info_cap_display_plane_events { + struct vfio_info_cap_header header; + __u64 cur_event_val; + __u64 pri_event_val; +}; + /** * VFIO_DEVICE_SET_IRQS - _IOW(VFIO_TYPE, VFIO_BASE + 10, struct vfio_irq_set) *