From patchwork Tue Oct 21 10:50:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5117591 Return-Path: X-Original-To: patchwork-ltsi-dev@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 5A799C11AC for ; Tue, 21 Oct 2014 11:35:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 558B420107 for ; Tue, 21 Oct 2014 11:35:06 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4F8342010F for ; Tue, 21 Oct 2014 11:35:05 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id DDD16F45; Tue, 21 Oct 2014 11:05:55 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id AE002C34 for ; Tue, 21 Oct 2014 11:05:53 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 050431FFFA for ; Tue, 21 Oct 2014 11:05:52 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 21 Oct 2014 04:05:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617796227" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:05:51 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 18:50:45 +0800 Message-Id: <1413889294-31328-446-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Subject: [LTSI-dev] [PATCH 0445/1094] drm: Add drm_universal_plane_init() X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Matt Roper Add a new plane initialization interface for universal plane support that allows a specific plane type (primary, cursor, or overlay) to be specified. drm_plane_init() remains as a compatibility API to reduce churn in existing drivers. The 'bool priv' parameter has been changed to 'bool is_primary' under the assumption that all existing uses of private planes were representing primary planes. Signed-off-by: Matt Roper Reviewed-by: Rob Clark (cherry picked from commit dc415ff97d6b8f21cc6d264962f3a857a8d44650) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/drm_crtc.c | 80 ++++++++++++++++++++++++++++---------------- include/drm/drm_crtc.h | 9 ++++- 2 files changed, 59 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 3f870d0..2eecea9 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1000,26 +1000,25 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) EXPORT_SYMBOL(drm_encoder_cleanup); /** - * drm_plane_init - Initialise a new plane object + * drm_universal_plane_init - Initialize a new universal plane object * @dev: DRM device * @plane: plane object to init * @possible_crtcs: bitmask of possible CRTCs * @funcs: callbacks for the new plane * @formats: array of supported formats (%DRM_FORMAT_*) * @format_count: number of elements in @formats - * @priv: plane is private (hidden from userspace)? + * @type: type of plane (overlay, primary, cursor) * - * Inits a preallocate plane object created as base part of a driver plane - * object. + * Initializes a plane object of type @type. * * Returns: * Zero on success, error code on failure. */ -int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, - unsigned long possible_crtcs, - const struct drm_plane_funcs *funcs, - const uint32_t *formats, uint32_t format_count, - bool priv) +int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + const uint32_t *formats, uint32_t format_count, + enum drm_plane_type type) { int ret; @@ -1044,26 +1043,49 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); plane->format_count = format_count; plane->possible_crtcs = possible_crtcs; - plane->type = DRM_PLANE_TYPE_OVERLAY; + plane->type = type; - /* private planes are not exposed to userspace, but depending on - * display hardware, might be convenient to allow sharing programming - * for the scanout engine with the crtc implementation. - */ - if (!priv) { - list_add_tail(&plane->head, &dev->mode_config.plane_list); - dev->mode_config.num_total_plane++; - if (plane->type == DRM_PLANE_TYPE_OVERLAY) - dev->mode_config.num_overlay_plane++; - } else { - INIT_LIST_HEAD(&plane->head); - } + list_add_tail(&plane->head, &dev->mode_config.plane_list); + dev->mode_config.num_total_plane++; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + dev->mode_config.num_overlay_plane++; out: drm_modeset_unlock_all(dev); return ret; } +EXPORT_SYMBOL(drm_universal_plane_init); + +/** + * drm_plane_init - Initialize a legacy plane + * @dev: DRM device + * @plane: plane object to init + * @possible_crtcs: bitmask of possible CRTCs + * @funcs: callbacks for the new plane + * @formats: array of supported formats (%DRM_FORMAT_*) + * @format_count: number of elements in @formats + * @is_primary: plane type (primary vs overlay) + * + * Legacy API to initialize a DRM plane. + * + * New drivers should call drm_universal_plane_init() instead. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + const uint32_t *formats, uint32_t format_count, + bool is_primary) +{ + enum drm_plane_type type; + + type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; + return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, + formats, format_count, type); +} EXPORT_SYMBOL(drm_plane_init); /** @@ -1081,13 +1103,13 @@ void drm_plane_cleanup(struct drm_plane *plane) drm_modeset_lock_all(dev); kfree(plane->format_types); drm_mode_object_put(dev, &plane->base); - /* if not added to a list, it must be a private plane */ - if (!list_empty(&plane->head)) { - list_del(&plane->head); - dev->mode_config.num_total_plane--; - if (plane->type == DRM_PLANE_TYPE_OVERLAY) - dev->mode_config.num_overlay_plane--; - } + + BUG_ON(list_empty(&plane->head)); + + list_del(&plane->head); + dev->mode_config.num_total_plane--; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + dev->mode_config.num_overlay_plane--; drm_modeset_unlock_all(dev); } EXPORT_SYMBOL(drm_plane_cleanup); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 2765a4e..201d8c2 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -874,12 +874,19 @@ static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder, return !!(encoder->possible_crtcs & drm_crtc_mask(crtc)); } +extern int drm_universal_plane_init(struct drm_device *dev, + struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + const uint32_t *formats, + uint32_t format_count, + enum drm_plane_type type); extern int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, const struct drm_plane_funcs *funcs, const uint32_t *formats, uint32_t format_count, - bool priv); + bool is_primary); extern void drm_plane_cleanup(struct drm_plane *plane); extern void drm_plane_force_disable(struct drm_plane *plane); extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,