From patchwork Fri Oct 5 15:48:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bruce Wang X-Patchwork-Id: 10628349 X-Patchwork-Delegate: agross@codeaurora.org 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 8915515E2 for ; Fri, 5 Oct 2018 15:48:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7E98E29854 for ; Fri, 5 Oct 2018 15:48:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 72C132985E; Fri, 5 Oct 2018 15:48:53 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB72B29854 for ; Fri, 5 Oct 2018 15:48:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727725AbeJEWsI (ORCPT ); Fri, 5 Oct 2018 18:48:08 -0400 Received: from mail-yw1-f68.google.com ([209.85.161.68]:42021 "EHLO mail-yw1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727572AbeJEWsI (ORCPT ); Fri, 5 Oct 2018 18:48:08 -0400 Received: by mail-yw1-f68.google.com with SMTP id a197-v6so5410389ywh.9 for ; Fri, 05 Oct 2018 08:48:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=U/Le0MCIJ+eFFtkupF8VmgX6LVjaF/syDwkinchT8h4=; b=bmLa4vEoeVVv0oUtjo+PVJm8cdCXahhhXqX97xtIO8JyOnxRO2LAC0eKk6EqOTX3ER byGNyEN8Mxd1qcstEUAiTO8uaQB0xF0lajTqQkKeugjnTuFs76ESwvr2tWFZj/jGXmV2 Oz5lusSfgOK+2QeJtJIeBPRLpoN3TZxUxTqTk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=U/Le0MCIJ+eFFtkupF8VmgX6LVjaF/syDwkinchT8h4=; b=Pbrab5mpMJNAwbCNinzGMXzV5Of5MeuOjV0CJWcvLUR9KXp2EokVULuIOtPEbfmD41 flP2uhKt9cd1tayEXNE6pLKgGxJZ2NTTsX+3XPI7BJvVQqn0cAuvKYwvEpcDPLIkngPz YrzVDDcBsldcidBrT2TGeNVr5AQxYFeGR3HFyqprFk+032+h2MMbU1npmD2is4UkcbGT XxW/zS5YOWj+SJLbeZtVlevc3ckuiLV4C3dWUaTNhIHJMzfCdFObyIXj/4pudZkzuT0b i6kahXGqLoZXkfuWenj76cXn81mzHnDBPMIR2ruMWc7basNXqJhKj8UPNN4sYwhyJBZO LlQA== X-Gm-Message-State: ABuFfoiCZ5LgmueRu2AmjU2Bix1kBsWYc/CTjdVSKmSXB1gJRUXCXVFA QPFtwvo3WQD3HRM7ZZPNxUz8aQ== X-Google-Smtp-Source: ACcGV62+IWwvuvEb9jjyL11U/Cp4e+vdZCtupxdwpkxIi3yGC+HD99Y5J1XR+EJDoo27vWB7YtRToQ== X-Received: by 2002:a81:8044:: with SMTP id q65-v6mr6654824ywf.196.1538754530903; Fri, 05 Oct 2018 08:48:50 -0700 (PDT) Received: from bzwang.cnc.corp.google.com ([2620:0:1013:11:6f9e:dcbe:41ef:a61]) by smtp.gmail.com with ESMTPSA id x64-v6sm7592281ywx.103.2018.10.05.08.48.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 Oct 2018 08:48:49 -0700 (PDT) From: Bruce Wang To: freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: seanpaul@chromium.org, jsanka@codeaurora.org, robdclark@gmail.com, abhinavk@codeaurora.org, jcrouse@codeaurora.org Subject: [PATCH 3/4] drm/msm/dpu: Remove suspend state tracking from crtc Date: Fri, 5 Oct 2018 11:48:42 -0400 Message-Id: <20181005154843.172326-4-bzwang@chromium.org> X-Mailer: git-send-email 2.19.0.605.g01d371f741-goog In-Reply-To: <20181005154843.172326-1-bzwang@chromium.org> References: <20181005154843.172326-1-bzwang@chromium.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP dpu_crtc_enable/disable/reset are only being called upon initialization/destruction of the device and as part of the PM suspend/resume handling. Since core suspend and resume calls are guarenteed to not overlap with one another we don't need to track whether or not we're in a suspended state from inside the crtc. This patch removes the suspend logic from the crtc, and removes the relevant tracing from dpu_trace. Signed-off-by: Bruce Wang --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 61 ++--------------------- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 2 - drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 15 +----- 3 files changed, 7 insertions(+), 71 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index d4530d60767b..31e372554e0c 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -815,35 +815,6 @@ static void _dpu_crtc_vblank_enable_no_lock( } } -/** - * _dpu_crtc_set_suspend - notify crtc of suspend enable/disable - * @crtc: Pointer to drm crtc object - * @enable: true to enable suspend, false to indicate resume - */ -static void _dpu_crtc_set_suspend(struct drm_crtc *crtc, bool enable) -{ - struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); - - DRM_DEBUG_KMS("crtc%d suspend = %d\n", crtc->base.id, enable); - - mutex_lock(&dpu_crtc->crtc_lock); - - /* - * If the vblank is enabled, release a power reference on suspend - * and take it back during resume (if it is still enabled). - */ - trace_dpu_crtc_set_suspend(DRMID(&dpu_crtc->base), enable, dpu_crtc); - if (dpu_crtc->suspend == enable) - DPU_DEBUG("crtc%d suspend already set to %d, ignoring update\n", - crtc->base.id, enable); - else if (dpu_crtc->enabled && dpu_crtc->vblank_requested) { - _dpu_crtc_vblank_enable_no_lock(dpu_crtc, !enable); - } - - dpu_crtc->suspend = enable; - mutex_unlock(&dpu_crtc->crtc_lock); -} - /** * dpu_crtc_duplicate_state - state duplicate hook * @crtc: Pointer to drm crtc structure @@ -881,25 +852,14 @@ static struct drm_crtc_state *dpu_crtc_duplicate_state(struct drm_crtc *crtc) */ static void dpu_crtc_reset(struct drm_crtc *crtc) { - struct dpu_crtc *dpu_crtc; struct dpu_crtc_state *cstate; - if (!crtc) { - DPU_ERROR("invalid crtc\n"); - return; - } - - /* revert suspend actions, if necessary */ - if (dpu_kms_is_suspend_state(crtc->dev)) - _dpu_crtc_set_suspend(crtc, false); - /* remove previous state, if present */ if (crtc->state) { dpu_crtc_destroy_state(crtc, crtc->state); - crtc->state = 0; + crtc->state = NULL; } - dpu_crtc = to_dpu_crtc(crtc); cstate = kzalloc(sizeof(*cstate), GFP_KERNEL); if (!cstate) { DPU_ERROR("failed to allocate state\n"); @@ -951,9 +911,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc) DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); - if (dpu_kms_is_suspend_state(crtc->dev)) - _dpu_crtc_set_suspend(crtc, true); - /* Disable/save vblank irq handling */ drm_crtc_vblank_off(crtc); @@ -966,8 +923,7 @@ static void dpu_crtc_disable(struct drm_crtc *crtc) atomic_read(&dpu_crtc->frame_pending)); trace_dpu_crtc_disable(DRMID(crtc), false, dpu_crtc); - if (dpu_crtc->enabled && !dpu_crtc->suspend && - dpu_crtc->vblank_requested) { + if (dpu_crtc->enabled && dpu_crtc->vblank_requested) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, false); } dpu_crtc->enabled = false; @@ -1033,8 +989,7 @@ static void dpu_crtc_enable(struct drm_crtc *crtc, mutex_lock(&dpu_crtc->crtc_lock); trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc); - if (!dpu_crtc->enabled && !dpu_crtc->suspend && - dpu_crtc->vblank_requested) { + if (!dpu_crtc->enabled && dpu_crtc->vblank_requested) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, true); } dpu_crtc->enabled = true; @@ -1289,17 +1244,11 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc, int dpu_crtc_vblank(struct drm_crtc *crtc, bool en) { - struct dpu_crtc *dpu_crtc; - - if (!crtc) { - DPU_ERROR("invalid crtc\n"); - return -EINVAL; - } - dpu_crtc = to_dpu_crtc(crtc); + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); mutex_lock(&dpu_crtc->crtc_lock); trace_dpu_crtc_vblank(DRMID(&dpu_crtc->base), en, dpu_crtc); - if (dpu_crtc->enabled && !dpu_crtc->suspend) { + if (dpu_crtc->enabled) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, en); } dpu_crtc->vblank_requested = en; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h index 3723b4830335..7dc181aabb4d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h @@ -133,7 +133,6 @@ struct dpu_crtc_frame_event { * @play_count : frame count between crtc enable and disable * @vblank_cb_time : ktime at vblank count reset * @vblank_requested : whether the user has requested vblank events - * @suspend : whether or not a suspend operation is in progress * @enabled : whether the DPU CRTC is currently enabled. updated in the * commit-thread, not state-swap time which is earlier, so * safe to make decisions on during VBLANK on/off work @@ -169,7 +168,6 @@ struct dpu_crtc { u64 play_count; ktime_t vblank_cb_time; bool vblank_requested; - bool suspend; bool enabled; struct list_head feature_list; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h index 636b31b0d311..0c122e173892 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h @@ -749,7 +749,6 @@ TRACE_EVENT(dpu_crtc_vblank_enable, __field( uint32_t, enc_id ) __field( bool, enable ) __field( bool, enabled ) - __field( bool, suspend ) __field( bool, vblank_requested ) ), TP_fast_assign( @@ -757,15 +756,12 @@ TRACE_EVENT(dpu_crtc_vblank_enable, __entry->enc_id = enc_id; __entry->enable = enable; __entry->enabled = crtc->enabled; - __entry->suspend = crtc->suspend; __entry->vblank_requested = crtc->vblank_requested; ), - TP_printk("id:%u encoder:%u enable:%s state{enabled:%s suspend:%s " - "vblank_req:%s}", + TP_printk("id:%u encoder:%u enable:%s state{enabled:%s vblank_req:%s}", __entry->drm_id, __entry->enc_id, __entry->enable ? "true" : "false", __entry->enabled ? "true" : "false", - __entry->suspend ? "true" : "false", __entry->vblank_requested ? "true" : "false") ); @@ -776,26 +772,19 @@ DECLARE_EVENT_CLASS(dpu_crtc_enable_template, __field( uint32_t, drm_id ) __field( bool, enable ) __field( bool, enabled ) - __field( bool, suspend ) __field( bool, vblank_requested ) ), TP_fast_assign( __entry->drm_id = drm_id; __entry->enable = enable; __entry->enabled = crtc->enabled; - __entry->suspend = crtc->suspend; __entry->vblank_requested = crtc->vblank_requested; ), - TP_printk("id:%u enable:%s state{enabled:%s suspend:%s vblank_req:%s}", + TP_printk("id:%u enable:%s state{enabled:%s vblank_req:%s}", __entry->drm_id, __entry->enable ? "true" : "false", __entry->enabled ? "true" : "false", - __entry->suspend ? "true" : "false", __entry->vblank_requested ? "true" : "false") ); -DEFINE_EVENT(dpu_crtc_enable_template, dpu_crtc_set_suspend, - TP_PROTO(uint32_t drm_id, bool enable, struct dpu_crtc *crtc), - TP_ARGS(drm_id, enable, crtc) -); DEFINE_EVENT(dpu_crtc_enable_template, dpu_crtc_enable, TP_PROTO(uint32_t drm_id, bool enable, struct dpu_crtc *crtc), TP_ARGS(drm_id, enable, crtc)