From patchwork Wed Aug 29 00:39:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeykumar Sankaran X-Patchwork-Id: 10579375 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 7A341920 for ; Wed, 29 Aug 2018 00:40:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 628C82AE78 for ; Wed, 29 Aug 2018 00:40:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5D8972AEB3; Wed, 29 Aug 2018 00:40:56 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED 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 DA49C2AE4E for ; Wed, 29 Aug 2018 00:40:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3AC876E483; Wed, 29 Aug 2018 00:40:38 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 542316E461; Wed, 29 Aug 2018 00:40:17 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 3572C6081A; Wed, 29 Aug 2018 00:40:17 +0000 (UTC) Received: from jeykumar-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jsanka@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 0503B60714; Wed, 29 Aug 2018 00:40:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0503B60714 From: Jeykumar Sankaran To: dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Subject: [PATCH 05/14] drm/msm/dpu: enable master-slave encoders explicitly Date: Tue, 28 Aug 2018 17:39:54 -0700 Message-Id: <1535503203-22054-6-git-send-email-jsanka@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1535503203-22054-1-git-send-email-jsanka@codeaurora.org> References: <1535503203-22054-1-git-send-email-jsanka@codeaurora.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: hoegsberg@google.com, seanpaul@chromium.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Identify slave-master encoders during initialization and enable the encoders explicitly as the current logic has redundant and ambiguous loops. Signed-off-by: Jeykumar Sankaran Reviewed-by: Sean Paul --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 46 ++++++++++------------------- 1 file changed, 15 insertions(+), 31 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 991b22c..b223bd2 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -180,6 +180,7 @@ struct dpu_encoder_virt { unsigned int num_phys_encs; struct dpu_encoder_phys *phys_encs[MAX_PHYS_ENCODERS_PER_VIRTUAL]; struct dpu_encoder_phys *cur_master; + struct dpu_encoder_phys *cur_slave; struct dpu_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC]; bool intfs_swapped; @@ -1141,7 +1142,8 @@ void dpu_encoder_virt_restore(struct drm_encoder *drm_enc) static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc) { struct dpu_encoder_virt *dpu_enc = NULL; - int i, ret = 0; + struct dpu_encoder_phys *phys = NULL; + int ret = 0; struct drm_display_mode *cur_mode = NULL; if (!drm_enc) { @@ -1154,21 +1156,14 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc) trace_dpu_enc_enable(DRMID(drm_enc), cur_mode->hdisplay, cur_mode->vdisplay); - dpu_enc->cur_master = NULL; - for (i = 0; i < dpu_enc->num_phys_encs; i++) { - struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i]; + /* always enable slave encoder before master */ + phys = dpu_enc->cur_slave; + if (phys && phys->ops.enable) + phys->ops.enable(phys); - if (phys && phys->ops.is_master && phys->ops.is_master(phys)) { - DPU_DEBUG_ENC(dpu_enc, "master is now idx %d\n", i); - dpu_enc->cur_master = phys; - break; - } - } - - if (!dpu_enc->cur_master) { - DPU_ERROR("virt encoder has no master! num_phys %d\n", i); - return; - } + phys = dpu_enc->cur_master; + if (phys && phys->ops.enable) + phys->ops.enable(phys); ret = dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_KICKOFF); if (ret) { @@ -1177,21 +1172,6 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc) return; } - for (i = 0; i < dpu_enc->num_phys_encs; i++) { - struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i]; - - if (!phys) - continue; - - if (phys != dpu_enc->cur_master) { - if (phys->ops.enable) - phys->ops.enable(phys); - } - } - - if (dpu_enc->cur_master->ops.enable) - dpu_enc->cur_master->ops.enable(dpu_enc->cur_master); - _dpu_encoder_virt_enable_helper(drm_enc); } @@ -2062,6 +2042,11 @@ static int dpu_encoder_virt_add_phys_encs( ++dpu_enc->num_phys_encs; } + if (params->split_role == ENC_ROLE_SLAVE) + dpu_enc->cur_slave = enc; + else + dpu_enc->cur_master = enc; + return 0; } @@ -2228,7 +2213,6 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc, if (ret) goto fail; - dpu_enc->cur_master = NULL; spin_lock_init(&dpu_enc->enc_spinlock); atomic_set(&dpu_enc->frame_done_timeout, 0);