From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7AD1AC43334 for ; Wed, 22 Jun 2022 14:32:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C981610F199; Wed, 22 Jun 2022 14:32:19 +0000 (UTC) Received: from wout5-smtp.messagingengine.com (wout5-smtp.messagingengine.com [64.147.123.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id 33EAC10EFD0 for ; Wed, 22 Jun 2022 14:32:17 +0000 (UTC) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id 356F73200094; Wed, 22 Jun 2022 10:32:14 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 22 Jun 2022 10:32:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h=cc :cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:message-id:mime-version:reply-to:sender:subject :subject:to:to; s=fm1; t=1655908333; x=1655994733; bh=aSrFxp0cHx Q5KZLDx3rVc6+WIRPQGd5CqvFDoUDMS7Q=; b=dU5iuQm8ERRpMPF9FupLDPV77x rU2KvhSIjwuNpZCgbCaAo9ueZpnYJ8XzMawCJw5vNno9LA7+PgSmp4T/wN/PF5Fp RF6rZiT1ppF2TXp7XIpEshOR33MGQRa1tV2Vv5+L05NuXyROONsxA372X8RXJK5Q EpPKMmgZJ8wzZGIINo7j9/HSebGgJX4qL8tCtH2LLtVbVp8khzpsR1pqH6yrQeg0 iGM35xpgJdaDEANLTCW22zrXU+APqPc0h+Jdn23q2EAI9Oma/8Qn6qm0kYCKn+OV G993o4ks+PqV8ziXNUhA9A+fB4I8666tGZbje2375OJ7a1LaFWoJmcnRAjzQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:message-id:mime-version:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1655908333; x=1655994733; bh=aSrFxp0cHxQ5K ZLDx3rVc6+WIRPQGd5CqvFDoUDMS7Q=; b=td92D+V0Oo7vSW4zPXUOyjgIIHZI2 dxvsXLFz3ZVrBxCxSNdbGvno3exa1CY84ir+A4/Qij0i+SkY21BqOratmfwcMXhJ LowYd1Mm581JYDHyx7Dm/+OngQNI3AcXhqJwiwXcZ7N4HoF/kJSJX94XbbZtjwwh 3RL+oCi8aKrd8htWAVpKPNbW12itOA+wqnMEhk8UcFscnLOxuc6EgZSNdOBYTFWF 8Z8G79A/3coc6MBdaG7pBfMSE0RXoLFC22r20DJkY3ucXgnSsnP45Z982Rqt7WMJ 1CR/nNCI51KJJ2BFm8hWhqS0vyscHQjJGuT/+xCeRBrsmxJXi8k9tGcWg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrudefhedgjeejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgtggfgsehtkeertdertdejnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepledvtdegkeegtdejvdejvdejleeifeegfeevueegvddvleevieeghffhtdet geffnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepmh grgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Feedback-ID: i8771445c:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 22 Jun 2022 10:32:12 -0400 (EDT) From: Maxime Ripard To: Maarten Lankhorst , Thomas Zimmermann , Maxime Ripard , Daniel Vetter , David Airlie Subject: [PATCH v2 00/68] drm/vc4: Fix hotplug for vc4 Date: Wed, 22 Jun 2022 16:31:01 +0200 Message-Id: <20220622143209.600298-1-maxime@cerno.tech> X-Mailer: git-send-email 2.36.1 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi, Here is a series that address multiple issues when trying to unbind/rebind vc4-related devices to their drivers. Most of these issues involve either use-after-free, improper resource liberation or similar. It has been tested on the Pi3 and Pi4, with X and glxgears running and KASAN enabled to properly validate our memory accesses. Pi3 isn't functional after a rebind though, with vblank timeouts occuring. I'm not quite sure why at this point, but at least the kernel doesn't completely crash now. Let me know what you think, Maxime --- Changes from v1: - Rebased on top on next-20220622 - Consolidated the new drmm init helpers with their alloc counterparts - Dropped the drmm writeback and simple encoder helpers - Clarified the documentation of drm_connector_unregister - Removed the drm_connector_unregister usage - Fixed a vblank timeout when unbinding - Renamed the kref functions in vc4_dsi - Collected the tags Maxime Ripard (68): drm/mipi-dsi: Detach devices when removing the host drm/crtc: Introduce drmm_crtc_init_with_planes drm/encoder: Introduce drmm_encoder_init drm/connector: Reorder headers drm/connector: Mention the cleanup after drm_connector_init drm/connector: Clarify when drm_connector_unregister is needed drm/connector: Introduce drmm_connector_init drm/connector: Introduce drmm_connector_init_with_ddc drm/bridge: panel: Introduce drmm_panel_bridge_add drm/bridge: panel: Introduce drmm_of_get_bridge drm/vc4: drv: Call component_unbind_all() drm/vc4: drv: Use drm_dev_unplug drm/vc4: crtc: Create vblank reporting function drm/vc4: hvs: Protect device resources after removal drm/vc4: hvs: Remove planes currently allocated before taking down drm/vc4: plane: Take possible_crtcs as an argument drm/vc4: crtc: Remove manual plane removal on error drm/vc4: plane: Switch to drmm_universal_plane_alloc() drm/vc4: crtc: Move debugfs_name to crtc_data drm/vc4: crtc: Switch to drmm_kzalloc drm/vc4: crtc: Switch to DRM-managed CRTC initialization drm/vc4: dpi: Remove vc4_dev dpi pointer drm/vc4: dpi: Embed DRM structures into the private structure drm/vc4: dpi: Switch to drmm_kzalloc drm/vc4: dpi: Return an error if we can't enable our clock drm/vc4: dpi: Remove unnecessary drm_of_panel_bridge_remove call drm/vc4: dpi: Add action to disable the clock drm/vc4: dpi: Switch to DRM-managed encoder initialization drm/vc4: dpi: Switch to drmm_of_get_bridge drm/vc4: dpi: Protect device resources drm/vc4: dsi: Embed DRM structures into the private structure drm/vc4: dsi: Switch to DRM-managed encoder initialization drm/vc4: dsi: Switch to drmm_of_get_bridge drm/vc4: dsi: Fix the driver structure lifetime drm/vc4: dsi: Switch to devm_pm_runtime_enable drm/vc4: hdmi: Switch to drmm_kzalloc drm/vc4: hdmi: Remove call to drm_connector_unregister() drm/vc4: hdmi: Switch to DRM-managed encoder initialization drm/vc4: hdmi: Switch to DRM-managed connector initialization drm/vc4: hdmi: Switch to device-managed ALSA initialization drm/vc4: hdmi: Switch to device-managed CEC initialization drm/vc4: hdmi: Use a device-managed action for DDC drm/vc4: hdmi: Switch to DRM-managed kfree to build regsets drm/vc4: hdmi: Use devm to register hotplug interrupts drm/vc4: hdmi: Move audio structure offset checks drm/vc4: hdmi: Protect device resources after removal drm/vc4: hdmi: Switch to devm_pm_runtime_enable drm/vc4: txp: Remove vc4_dev txp pointer drm/vc4: txp: Remove duplicate regset drm/vc4: txp: Switch to drmm_kzalloc drm/vc4: txp: Remove call to drm_connector_unregister() drm/vc4: txp: Protect device resources drm/vc4: vec: Remove vc4_dev vec pointer drm/vc4: vec: Embed DRM structures into the private structure drm/vc4: vec: Switch to drmm_kzalloc drm/vc4: vec: Remove call to drm_connector_unregister() drm/vc4: vec: Switch to DRM-managed encoder initialization drm/vc4: vec: Switch to DRM-managed connector initialization drm/vc4: vec: Protect device resources after removal drm/vc4: vec: Switch to devm_pm_runtime_enable drm/vc4: debugfs: Protect device resources drm/vc4: debugfs: Return an error on failure drm/vc4: debugfs: Simplify debugfs registration drm/vc4: Switch to drmm_mutex_init drm/vc4: perfmon: Add missing mutex_destroy drm/vc4: v3d: Stop disabling interrupts drm/vc4: v3d: Rework the runtime_pm setup drm/vc4: v3d: Switch to devm_pm_runtime_enable drivers/gpu/drm/bridge/panel.c | 74 ++++ drivers/gpu/drm/drm_connector.c | 196 +++++++-- drivers/gpu/drm/drm_crtc.c | 75 +++- drivers/gpu/drm/drm_encoder.c | 57 ++- drivers/gpu/drm/drm_mipi_dsi.c | 1 + drivers/gpu/drm/vc4/vc4_bo.c | 33 +- drivers/gpu/drm/vc4/vc4_crtc.c | 90 ++-- drivers/gpu/drm/vc4/vc4_debugfs.c | 71 ++-- drivers/gpu/drm/vc4/vc4_dpi.c | 131 +++--- drivers/gpu/drm/vc4/vc4_drv.c | 21 +- drivers/gpu/drm/vc4/vc4_drv.h | 47 ++- drivers/gpu/drm/vc4/vc4_dsi.c | 133 ++++-- drivers/gpu/drm/vc4/vc4_gem.c | 10 +- drivers/gpu/drm/vc4/vc4_hdmi.c | 659 ++++++++++++++++++++++-------- drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +- drivers/gpu/drm/vc4/vc4_hvs.c | 138 ++++++- drivers/gpu/drm/vc4/vc4_irq.c | 2 +- drivers/gpu/drm/vc4/vc4_perfmon.c | 1 + drivers/gpu/drm/vc4/vc4_plane.c | 36 +- drivers/gpu/drm/vc4/vc4_txp.c | 55 ++- drivers/gpu/drm/vc4/vc4_v3d.c | 65 ++- drivers/gpu/drm/vc4/vc4_vec.c | 216 +++++----- include/drm/drm_bridge.h | 4 + include/drm/drm_connector.h | 9 + include/drm/drm_crtc.h | 6 + include/drm/drm_encoder.h | 5 + 26 files changed, 1514 insertions(+), 624 deletions(-) -- 2.36.1