From patchwork Thu Mar 16 22:43:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 9629407 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EF56160249 for ; Thu, 16 Mar 2017 22:44:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E054528489 for ; Thu, 16 Mar 2017 22:44:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D4F3D28686; Thu, 16 Mar 2017 22:44:37 +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=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 36ED128489 for ; Thu, 16 Mar 2017 22:44:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9B5F26EC19; Thu, 16 Mar 2017 22:44:36 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7449E6EC19; Thu, 16 Mar 2017 22:44:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=intel.com; i=@intel.com; q=dns/txt; s=intel; t=1489704275; x=1521240275; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=puC8Y8S77MsoJCOb1uQd1ZqIlzsRaFAd/nekEdKm1bc=; b=nd7WzV/R4PBjhOow4ryU4OxsWd/TJGCkEcdgNfjYWyOJIe4+nSyU01lM PXJjzViFJt+1g59cIMwKtHkL+wgSTw==; Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Mar 2017 15:44:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.36,174,1486454400"; d="scan'208";a="835650724" Received: from nuc-skylake.jf.intel.com ([10.54.75.136]) by FMSMGA003.fm.intel.com with ESMTP; 16 Mar 2017 15:44:34 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Thu, 16 Mar 2017 15:43:05 -0700 Message-Id: <1489704185-2461-1-git-send-email-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <20170316082713.cyw3nrpbrz6lfp6a@phenom.ffwll.local> References: <20170316082713.cyw3nrpbrz6lfp6a@phenom.ffwll.local> Cc: Archit Taneja , Daniel Vetter , dri-devel@lists.freedesktop.org, "Pandiyan, Dhinakaran" , Harry Wentland Subject: [Intel-gfx] [PATCH v5 7/8] drm: Connector helper function to release resources X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: "Pandiyan, Dhinakaran" Having an ->atomic_release callback is useful to release shared resources that get allocated in compute_config(). This function is expected to be called in the atomic_check() phase before new resources are acquired. v4: Document that the function is conditionally called and before other atomic_checks() (Daniel) v3: Use the new 'for_each_oldnew_connector_in_state()' macro. v2: Moved the caller hunk to this patch (Daniel) Reviewed-by: Daniel Vetter Suggested-by: Daniel Vetter Signed-off-by: Dhinakaran Pandiyan --- drivers/gpu/drm/drm_atomic_helper.c | 19 +++++++++++++++++++ include/drm/drm_modeset_helper_vtables.h | 16 ++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 1403334..c6c8397 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -586,6 +586,25 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, } } + for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i) { + const struct drm_connector_helper_funcs *conn_funcs; + struct drm_crtc_state *crtc_state; + + conn_funcs = connector->helper_private; + if (!conn_funcs->atomic_release) + continue; + + if (!old_connector_state->crtc) + continue; + + crtc_state = drm_atomic_get_existing_crtc_state(state, old_connector_state->crtc); + + if (crtc_state->connectors_changed || + crtc_state->mode_changed || + (crtc_state->active_changed && !crtc_state->active)) + conn_funcs->atomic_release(connector, new_connector_state); + } + return mode_fixup(state); } EXPORT_SYMBOL(drm_atomic_helper_check_modeset); diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index 091c422..84e80aa 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -836,6 +836,22 @@ struct drm_connector_helper_funcs { */ struct drm_encoder *(*atomic_best_encoder)(struct drm_connector *connector, struct drm_connector_state *connector_state); + + /** + * @atomic_release: + * + * This function is conditionally called to release shared resources + * when the attached CRTC's mode changes or it's connectors change or + * becomes inactive. It is called before the corresponding + * &drm_crtc_helper_funcs.atomic_check or + * &drm_crtc_helper_funcs.mode_fixup hooks are called. + * + * NOTE: + * + * This function is called in the check phase of an atomic update. + */ + void (*atomic_release)(struct drm_connector *connector, + struct drm_connector_state *connector_state); }; /**