From patchwork Wed Mar 19 00:22:54 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 3849931 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6610DBF549 for ; Wed, 19 Mar 2014 00:22:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 839B72037D for ; Wed, 19 Mar 2014 00:22:06 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id A6BBC20381 for ; Wed, 19 Mar 2014 00:22:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A5FC04A1E8; Tue, 18 Mar 2014 17:22:00 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 8274D4A1A7 for ; Tue, 18 Mar 2014 17:21:57 -0700 (PDT) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP; 18 Mar 2014 17:17:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,681,1389772800"; d="scan'208";a="494726581" Received: from mdroper-hswdev.fm.intel.com (HELO mdroper-hswdev) ([10.1.134.215]) by fmsmga001.fm.intel.com with ESMTP; 18 Mar 2014 17:21:56 -0700 Received: from mattrope by mdroper-hswdev with local (Exim 4.82) (envelope-from ) id 1WQ4I5-0004Vg-FU; Tue, 18 Mar 2014 17:23:29 -0700 From: Matt Roper To: dri-devel@lists.freedesktop.org Subject: [RFCv3 09/14] drm: Allow userspace to ask for full plane list (universal planes) Date: Tue, 18 Mar 2014 17:22:54 -0700 Message-Id: <1395188579-17191-10-git-send-email-matthew.d.roper@intel.com> X-Mailer: git-send-email 1.8.5.1 In-Reply-To: <1395188579-17191-1-git-send-email-matthew.d.roper@intel.com> References: <1395188579-17191-1-git-send-email-matthew.d.roper@intel.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Userspace clients which wish to receive all DRM planes (primary and cursor planes in addition to the traditional overlay planes) may set the DRM_CLIENT_CAP_UNIVERSAL_PLANES capability. Signed-off-by: Matt Roper --- drivers/gpu/drm/drm_crtc.c | 20 +++++++++++++++----- drivers/gpu/drm/drm_ioctl.c | 5 +++++ include/drm/drmP.h | 5 +++++ include/uapi/drm/drm.h | 8 ++++++++ 4 files changed, 33 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 0c395e8..fb8e493 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -2160,6 +2160,7 @@ int drm_mode_getplane_res(struct drm_device *dev, void *data, struct drm_plane *plane; uint32_t __user *plane_ptr; int copied = 0, ret = 0; + unsigned num_planes; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; @@ -2167,17 +2168,26 @@ int drm_mode_getplane_res(struct drm_device *dev, void *data, drm_modeset_lock_all(dev); config = &dev->mode_config; + if (file_priv->universal_planes) + num_planes = config->num_total_plane; + else + num_planes = config->num_overlay_plane; + /* * This ioctl is called twice, once to determine how much space is * needed, and the 2nd time to fill it. */ - if (config->num_overlay_plane && - (plane_resp->count_planes >= config->num_overlay_plane)) { + if (num_planes && + (plane_resp->count_planes >= num_planes)) { plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; list_for_each_entry(plane, &config->plane_list, head) { - /* Only advertise overlays to userspace for now. */ - if (plane->type != DRM_PLANE_TYPE_OVERLAY) + /* + * Unless userspace set the 'universal planes' + * capability bit, only advertise overlays. + */ + if (plane->type != DRM_PLANE_TYPE_OVERLAY && + !file_priv->universal_planes) continue; if (put_user(plane->base.id, plane_ptr + copied)) { @@ -2187,7 +2197,7 @@ int drm_mode_getplane_res(struct drm_device *dev, void *data, copied++; } } - plane_resp->count_planes = config->num_overlay_plane; + plane_resp->count_planes = num_planes; out: drm_modeset_unlock_all(dev); diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index f4dc9b7..5eb92b6 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -328,6 +328,11 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv) return -EINVAL; file_priv->stereo_allowed = req->value; break; + case DRM_CLIENT_CAP_UNIVERSAL_PLANES: + if (req->value > 1) + return -EINVAL; + file_priv->universal_planes = req->value; + break; default: return -EINVAL; } diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 3857450..1106297 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -438,6 +438,11 @@ struct drm_file { unsigned is_master :1; /* this file private is a master for a minor */ /* true when the client has asked us to expose stereo 3D mode flags */ unsigned stereo_allowed :1; + /* + * true if client understands CRTC primary planes and cursor planes + * in the plane list + */ + unsigned universal_planes:1; struct pid *pid; kuid_t uid; diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index b06c8ed..6e4952b 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -637,6 +637,14 @@ struct drm_get_cap { */ #define DRM_CLIENT_CAP_STEREO_3D 1 +/** + * DRM_CLIENT_CAP_UNIVERSAL_PLANES + * + * If set to 1, the DRM core will expose all planes (overlay, primary, and + * cursor) to userspace. + */ +#define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2 + /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */ struct drm_set_client_cap { __u64 capability;