From patchwork Tue Nov 6 22:36:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeykumar Sankaran X-Patchwork-Id: 10671581 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 A79E114E2 for ; Tue, 6 Nov 2018 22:36:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 99CCA2AE17 for ; Tue, 6 Nov 2018 22:36:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E1DA2AE1A; Tue, 6 Nov 2018 22:36:42 +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 8EB9C2AE26 for ; Tue, 6 Nov 2018 22:36:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0D3FB6E45B; Tue, 6 Nov 2018 22:36:39 +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 4B4306E45B; Tue, 6 Nov 2018 22:36:37 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 362B760ADD; Tue, 6 Nov 2018 22:36:37 +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 6288560AD8; Tue, 6 Nov 2018 22:36:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6288560AD8 From: Jeykumar Sankaran To: dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v2 3/5] drm/msm/dpu: use system wq for idle power collapse Date: Tue, 6 Nov 2018 14:36:28 -0800 Message-Id: <1541543790-748-3-git-send-email-jsanka@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1541543790-748-1-git-send-email-jsanka@codeaurora.org> References: <1541543790-748-1-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 msm is using system wq for dispatching commit and vblank events. Switch idle power collapse feature also to use system wq to handle delayed work handlers so that msm can get rid of redundant display threads. changes in v2: - patch introduced in v2 Signed-off-by: Jeykumar Sankaran --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 26 +++++++------------------- 1 file changed, 7 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 82c55ef..9b3d1f2 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -201,7 +201,7 @@ struct dpu_encoder_virt { bool idle_pc_supported; struct mutex rc_lock; enum dpu_enc_rc_states rc_state; - struct kthread_delayed_work delayed_off_work; + struct delayed_work delayed_off_work; struct kthread_work vsync_event_work; struct msm_display_topology topology; bool mode_set_complete; @@ -740,7 +740,6 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, { struct dpu_encoder_virt *dpu_enc; struct msm_drm_private *priv; - struct msm_drm_thread *disp_thread; bool is_vid_mode = false; if (!drm_enc || !drm_enc->dev || !drm_enc->dev->dev_private || @@ -753,12 +752,6 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, is_vid_mode = dpu_enc->disp_info.capabilities & MSM_DISPLAY_CAP_VID_MODE; - if (drm_enc->crtc->index >= ARRAY_SIZE(priv->disp_thread)) { - DPU_ERROR("invalid crtc index\n"); - return -EINVAL; - } - disp_thread = &priv->disp_thread[drm_enc->crtc->index]; - /* * when idle_pc is not supported, process only KICKOFF, STOP and MODESET * events and return early for other events (ie wb display). @@ -775,8 +768,7 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, switch (sw_event) { case DPU_ENC_RC_EVENT_KICKOFF: /* cancel delayed off work, if any */ - if (kthread_cancel_delayed_work_sync( - &dpu_enc->delayed_off_work)) + if (cancel_delayed_work_sync(&dpu_enc->delayed_off_work)) DPU_DEBUG_ENC(dpu_enc, "sw_event:%d, work cancelled\n", sw_event); @@ -835,10 +827,8 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, return 0; } - kthread_queue_delayed_work( - &disp_thread->worker, - &dpu_enc->delayed_off_work, - msecs_to_jiffies(dpu_enc->idle_timeout)); + schedule_delayed_work(&dpu_enc->delayed_off_work, + msecs_to_jiffies(dpu_enc->idle_timeout)); trace_dpu_enc_rc(DRMID(drm_enc), sw_event, dpu_enc->idle_pc_supported, dpu_enc->rc_state, @@ -847,8 +837,7 @@ static int dpu_encoder_resource_control(struct drm_encoder *drm_enc, case DPU_ENC_RC_EVENT_PRE_STOP: /* cancel delayed off work, if any */ - if (kthread_cancel_delayed_work_sync( - &dpu_enc->delayed_off_work)) + if (cancel_delayed_work_sync(&dpu_enc->delayed_off_work)) DPU_DEBUG_ENC(dpu_enc, "sw_event:%d, work cancelled\n", sw_event); @@ -1351,7 +1340,7 @@ static void dpu_encoder_frame_done_callback( } } -static void dpu_encoder_off_work(struct kthread_work *work) +static void dpu_encoder_off_work(struct work_struct *work) { struct dpu_encoder_virt *dpu_enc = container_of(work, struct dpu_encoder_virt, delayed_off_work.work); @@ -2191,8 +2180,7 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc, mutex_init(&dpu_enc->rc_lock); - kthread_init_delayed_work(&dpu_enc->delayed_off_work, - dpu_encoder_off_work); + INIT_DELAYED_WORK(&dpu_enc->delayed_off_work, dpu_encoder_off_work); dpu_enc->idle_timeout = IDLE_TIMEOUT; kthread_init_work(&dpu_enc->vsync_event_work,