From patchwork Fri Oct 5 15:48:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bruce Wang X-Patchwork-Id: 10628345 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 680B6933 for ; Fri, 5 Oct 2018 15:48:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5D53229853 for ; Fri, 5 Oct 2018 15:48:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5119E29855; Fri, 5 Oct 2018 15:48:50 +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 C54C229853 for ; Fri, 5 Oct 2018 15:48:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727878AbeJEWsF (ORCPT ); Fri, 5 Oct 2018 18:48:05 -0400 Received: from mail-yb1-f193.google.com ([209.85.219.193]:38530 "EHLO mail-yb1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727572AbeJEWsF (ORCPT ); Fri, 5 Oct 2018 18:48:05 -0400 Received: by mail-yb1-f193.google.com with SMTP id e190-v6so5600705ybb.5 for ; Fri, 05 Oct 2018 08:48:48 -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=brJxpEDFXXwT7xCHHz8Jdc+TOjUuTeYWymeJChmfG7o=; b=j/VLf7H66pEJBT/Jvku4CEobltQYU4WRcbsTzd60D8GYzuQkagzzRcY5PyzD49tpP2 5uXvmw83+o4ZMLDK9v/8lkD2cczUGhQixe7rN8lAxXJ66awdyncv1g+akpl2piPQ06zR kdFikXxIYcO06tPZUlzObPtXvV/+4AqHCklqo= 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=brJxpEDFXXwT7xCHHz8Jdc+TOjUuTeYWymeJChmfG7o=; b=POfzxTxa1/Q4cQSqbV+W0GCflMP8HOFEI8aPbgg7WsCIeljMOZb7X315H7wDxXaf8I HmdN9MF4z/r7soxUbq7Q+ZWgO0gcv/5Ny4zJTjsGOlZQ2XXeTTeDrbCe4Pmr+nxR6qrV XuDdGwWzFoij21+f+1jEonNc0YX7p9ysamrqQ1SeXsQ+0LuNQ+4sG+nRz0urwjYVFBLv zm8CK/Bt+8fiesZD123rW0GMJy++7YW9WGNtHMhbBJ4sOWTSF4buvg6+3y1JEnqD+pe+ vK5nuWJrD5YpvQ5nWiM3xxPx+BaMRgo3NkJI8GlZZveRRAsA3Ke+9cm/mKGPE3Fvt10j +pBw== X-Gm-Message-State: ABuFfojTDInxa6BvMU0HNPQZHiXMEL38LzRTMgCqeRPOa/G9mMA/snZl 4CS9zmVa0ej76UN5EowmomRGrA== X-Google-Smtp-Source: ACcGV60JDVMOYJRRuKSkgrnHqOb6hT6Uc49OE7VhjBKi46FDaMHq/pK7wdZbl44pAVDKVtDHmfkXcg== X-Received: by 2002:a25:c04a:: with SMTP id c71-v6mr6736130ybf.336.1538754528013; Fri, 05 Oct 2018 08:48:48 -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.103.2018.10.05.08.48.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 Oct 2018 08:48:46 -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 1/4] drm/msm/dpu: Remove dpu_kms_pm_suspend/resume Date: Fri, 5 Oct 2018 11:48:40 -0400 Message-Id: <20181005154843.172326-2-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 PM resume was crashing during dpu_kms_pm_resume. This patch removes dpu_kms_pm_suspend/resume so that msm_pm_suspend/resume uses the atomic helpers instead (see next patch). This patch also removes dpu_kms_is_suspend_blocked since it is never called. Signed-off-by: Bruce Wang Reviewed-by: Sean Paul --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 123 ------------------------ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 15 --- 2 files changed, 138 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 0a683e65a9f3..ff06b50dfc87 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -709,127 +709,6 @@ static void dpu_kms_destroy(struct msm_kms *kms) _dpu_kms_hw_destroy(dpu_kms); } -static int dpu_kms_pm_suspend(struct device *dev) -{ - struct drm_device *ddev; - struct drm_modeset_acquire_ctx ctx; - struct drm_atomic_state *state; - struct dpu_kms *dpu_kms; - int ret = 0, num_crtcs = 0; - - if (!dev) - return -EINVAL; - - ddev = dev_get_drvdata(dev); - if (!ddev || !ddev_to_msm_kms(ddev)) - return -EINVAL; - - dpu_kms = to_dpu_kms(ddev_to_msm_kms(ddev)); - - /* disable hot-plug polling */ - drm_kms_helper_poll_disable(ddev); - - /* acquire modeset lock(s) */ - drm_modeset_acquire_init(&ctx, 0); - -retry: - DPU_ATRACE_BEGIN("kms_pm_suspend"); - - ret = drm_modeset_lock_all_ctx(ddev, &ctx); - if (ret) - goto unlock; - - /* save current state for resume */ - if (dpu_kms->suspend_state) - drm_atomic_state_put(dpu_kms->suspend_state); - dpu_kms->suspend_state = drm_atomic_helper_duplicate_state(ddev, &ctx); - if (IS_ERR_OR_NULL(dpu_kms->suspend_state)) { - DRM_ERROR("failed to back up suspend state\n"); - dpu_kms->suspend_state = NULL; - goto unlock; - } - - /* create atomic state to disable all CRTCs */ - state = drm_atomic_state_alloc(ddev); - if (IS_ERR_OR_NULL(state)) { - DRM_ERROR("failed to allocate crtc disable state\n"); - goto unlock; - } - - state->acquire_ctx = &ctx; - - /* check for nothing to do */ - if (num_crtcs == 0) { - DRM_DEBUG("all crtcs are already in the off state\n"); - drm_atomic_state_put(state); - goto suspended; - } - - /* commit the "disable all" state */ - ret = drm_atomic_commit(state); - if (ret < 0) { - DRM_ERROR("failed to disable crtcs, %d\n", ret); - drm_atomic_state_put(state); - goto unlock; - } - -suspended: - dpu_kms->suspend_block = true; - -unlock: - if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; - } - drm_modeset_drop_locks(&ctx); - drm_modeset_acquire_fini(&ctx); - - DPU_ATRACE_END("kms_pm_suspend"); - return 0; -} - -static int dpu_kms_pm_resume(struct device *dev) -{ - struct drm_device *ddev; - struct dpu_kms *dpu_kms; - int ret; - - if (!dev) - return -EINVAL; - - ddev = dev_get_drvdata(dev); - if (!ddev || !ddev_to_msm_kms(ddev)) - return -EINVAL; - - dpu_kms = to_dpu_kms(ddev_to_msm_kms(ddev)); - - DPU_ATRACE_BEGIN("kms_pm_resume"); - - drm_mode_config_reset(ddev); - - drm_modeset_lock_all(ddev); - - dpu_kms->suspend_block = false; - - if (dpu_kms->suspend_state) { - dpu_kms->suspend_state->acquire_ctx = - ddev->mode_config.acquire_ctx; - ret = drm_atomic_commit(dpu_kms->suspend_state); - if (ret < 0) { - DRM_ERROR("failed to restore state, %d\n", ret); - drm_atomic_state_put(dpu_kms->suspend_state); - } - dpu_kms->suspend_state = NULL; - } - drm_modeset_unlock_all(ddev); - - /* enable hot-plug polling */ - drm_kms_helper_poll_enable(ddev); - - DPU_ATRACE_END("kms_pm_resume"); - return 0; -} - static void _dpu_kms_set_encoder_mode(struct msm_kms *kms, struct drm_encoder *encoder, bool cmd_mode) @@ -873,8 +752,6 @@ static const struct msm_kms_funcs kms_funcs = { .check_modified_format = dpu_format_check_modified_format, .get_format = dpu_get_msm_format, .round_pixclk = dpu_kms_round_pixclk, - .pm_suspend = dpu_kms_pm_suspend, - .pm_resume = dpu_kms_pm_resume, .destroy = dpu_kms_destroy, .set_encoder_mode = _dpu_kms_set_encoder_mode, #ifdef CONFIG_DEBUG_FS diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index 66d466628e2b..1991cbe424a3 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -137,7 +137,6 @@ struct dpu_kms { /* saved atomic state during system suspend */ struct drm_atomic_state *suspend_state; - bool suspend_block; struct dpu_rm rm; bool rm_init; @@ -176,20 +175,6 @@ static inline bool dpu_kms_is_suspend_state(struct drm_device *dev) return to_dpu_kms(ddev_to_msm_kms(dev))->suspend_state != NULL; } -/** - * dpu_kms_is_suspend_blocked - whether or not commits are blocked due to pm - * suspend status - * @dev: Pointer to drm device - * Return: True if commits should be rejected due to pm suspend - */ -static inline bool dpu_kms_is_suspend_blocked(struct drm_device *dev) -{ - if (!dpu_kms_is_suspend_state(dev)) - return false; - - return to_dpu_kms(ddev_to_msm_kms(dev))->suspend_block; -} - /** * Debugfs functions - extra helper functions for debugfs support *