From patchwork Wed Apr 5 08:29:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 9664747 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 C404260353 for ; Wed, 5 Apr 2017 16:58:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B51CE2858A for ; Wed, 5 Apr 2017 16:58:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A9B68285A0; Wed, 5 Apr 2017 16:58:37 +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=-4.2 required=2.0 tests=BAYES_00, 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 3705F2858A for ; Wed, 5 Apr 2017 16:58:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AF9B96E845; Wed, 5 Apr 2017 16:58:18 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from regular1.263xmail.com (regular1.263xmail.com [211.150.99.141]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6992C6E755 for ; Wed, 5 Apr 2017 08:30:56 +0000 (UTC) Received: from jeffy.chen?rock-chips.com (unknown [192.168.165.103]) by regular1.263xmail.com (Postfix) with ESMTP id 466616B; Wed, 5 Apr 2017 16:30:53 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from smtp.263.net (sg-smtp01.263.net [54.255.195.220]) by smtp.263.net (Postfix) with ESMTP id 8D4644B4; Wed, 5 Apr 2017 16:30:28 +0800 (CST) Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id B6214DF2ED; Wed, 5 Apr 2017 16:30:27 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 14120EE6R24; Wed, 05 Apr 2017 16:30:29 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org Subject: [PATCH v3 6/9] drm/rockchip: Reoder drm bind/unbind sequence Date: Wed, 5 Apr 2017 16:29:24 +0800 Message-Id: <1491380967-28570-7-git-send-email-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1491380967-28570-1-git-send-email-jeffy.chen@rock-chips.com> References: <1491380967-28570-1-git-send-email-jeffy.chen@rock-chips.com> X-Mailman-Approved-At: Wed, 05 Apr 2017 16:58:17 +0000 Cc: Jeffy Chen , briannorris@chromium.org, dianders@chromium.org, dri-devel@lists.freedesktop.org, tfiga@chromium.org, linux-rockchip@lists.infradead.org, zyw@rock-chips.com, linux-arm-kernel@lists.infradead.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Current drm bind/unbind sequence would cause some memory issues. For example we should not cleanup iommu before cleanup mode config. Reorder bind/unbind sequence, follow exynos drm. Signed-off-by: Jeffy Chen --- Changes in v3: Address Sean Paul 's comments. Update commit message. Changes in v2: None drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 49 +++++++++++++++-------------- 1 file changed, 26 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index cd7d02e1..f24968f 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -136,21 +136,24 @@ static int rockchip_drm_bind(struct device *dev) INIT_LIST_HEAD(&private->psr_list); spin_lock_init(&private->psr_list_lock); + ret = rockchip_drm_init_iommu(drm_dev); + if (ret) + goto err_free; + drm_mode_config_init(drm_dev); rockchip_drm_mode_config_init(drm_dev); - ret = rockchip_drm_init_iommu(drm_dev); - if (ret) - goto err_config_cleanup; - /* Try to bind all sub drivers. */ ret = component_bind_all(dev, drm_dev); if (ret) - goto err_iommu_cleanup; + goto err_mode_config_cleanup; - /* init kms poll for handling hpd */ - drm_kms_helper_poll_init(drm_dev); + ret = drm_vblank_init(drm_dev, drm_dev->mode_config.num_crtc); + if (ret) + goto err_unbind_all; + + drm_mode_config_reset(drm_dev); /* * enable drm irq mode. @@ -158,15 +161,12 @@ static int rockchip_drm_bind(struct device *dev) */ drm_dev->irq_enabled = true; - ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC); - if (ret) - goto err_kms_helper_poll_fini; - - drm_mode_config_reset(drm_dev); + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(drm_dev); ret = rockchip_drm_fbdev_init(drm_dev); if (ret) - goto err_vblank_cleanup; + goto err_kms_helper_poll_fini; ret = drm_dev_register(drm_dev, 0); if (ret) @@ -175,17 +175,17 @@ static int rockchip_drm_bind(struct device *dev) return 0; err_fbdev_fini: rockchip_drm_fbdev_fini(drm_dev); -err_vblank_cleanup: - drm_vblank_cleanup(drm_dev); err_kms_helper_poll_fini: drm_kms_helper_poll_fini(drm_dev); + drm_vblank_cleanup(drm_dev); +err_unbind_all: component_unbind_all(dev, drm_dev); -err_iommu_cleanup: - rockchip_iommu_cleanup(drm_dev); -err_config_cleanup: +err_mode_config_cleanup: drm_mode_config_cleanup(drm_dev); - drm_dev->dev_private = NULL; + rockchip_iommu_cleanup(drm_dev); err_free: + drm_dev->dev_private = NULL; + dev_set_drvdata(dev, NULL); drm_dev_unref(drm_dev); return ret; } @@ -194,16 +194,19 @@ static void rockchip_drm_unbind(struct device *dev) { struct drm_device *drm_dev = dev_get_drvdata(dev); + drm_dev_unregister(drm_dev); + rockchip_drm_fbdev_fini(drm_dev); - drm_vblank_cleanup(drm_dev); drm_kms_helper_poll_fini(drm_dev); + + drm_vblank_cleanup(drm_dev); component_unbind_all(dev, drm_dev); - rockchip_iommu_cleanup(drm_dev); drm_mode_config_cleanup(drm_dev); + rockchip_iommu_cleanup(drm_dev); + drm_dev->dev_private = NULL; - drm_dev_unregister(drm_dev); - drm_dev_unref(drm_dev); dev_set_drvdata(dev, NULL); + drm_dev_unref(drm_dev); } static void rockchip_drm_lastclose(struct drm_device *dev)