From patchwork Wed Oct 13 20:48:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fernando Ramos X-Patchwork-Id: 12557063 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6EBC9C433EF for ; Wed, 13 Oct 2021 20:49:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5813861139 for ; Wed, 13 Oct 2021 20:49:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230336AbhJMUvt (ORCPT ); Wed, 13 Oct 2021 16:51:49 -0400 Received: from new3-smtp.messagingengine.com ([66.111.4.229]:51007 "EHLO new3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229945AbhJMUvf (ORCPT ); Wed, 13 Oct 2021 16:51:35 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id 29EDD581179; Wed, 13 Oct 2021 16:49:31 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Wed, 13 Oct 2021 16:49:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=u92.eu; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=TsnieD8JNOkvc CeHrO6O329V8uto/kVQnYqCrL+jTDk=; b=TxzuU9TkZPUZjMI3OAr5W++HTHKFc Ubi6IO9nGEDBKdEcfesFlJ7OnWrtgf1A2GvtTBEtEvHqSxF7Z241/ziElJkFtHSi We+8eQXZRHw/Iht46UWPt8lQJxcOyfU4ETa/9ztLpU9M8rAhQpWhKl68NaJq+GdM ACZAX0PVQiBzPvT1ZudTchK9haGS9v9Uf4TpZQyVrgpatXIWkkmDLea1ddZkc6Km 2tOsg3GOByBxWOwnR9WEx7AVyIXCjHk2ZRlL5r3u3F72LfU44pLZa6xMCpY3o19L /P0Rxs13wfShGvE8kIdN9fa6GwwWeo6RP8Ftfmkg9oKrq8IBQxzpilPzg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=TsnieD8JNOkvcCeHrO6O329V8uto/kVQnYqCrL+jTDk=; b=HIUjLJB3 Lasiw3KMpps+DtwtLNp5sEQ9xPSyknXCT51Fueb4jVFakJ8soAY0LrF8xU9/UDnp HK1OvfuOSLAR/nUAKmm6FEUV1MVwBifjTMe2G6kPenN75wfocDNrdwMTHcVfsDmf x7kNObgDeW4EprO6cGEedPsfjtClyxlZR5cN2HNOoUv6Mrycci3kmqbrMzLPGfKk 9A8hvkt+AIqaV5eNpqjOLuMK/WEH/iHqaBwUnO+CqbxNX76GKptFVSZGFcGrNrjH 0zE8Ayna67X+l/kW8tOD2BeUo+Pd8ENhczJPgqD1Lht/6bH4U9z5rbTpJwkqv2mA UcxzAUA03XYdtw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddutddgudehudcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtke ertdertddtnecuhfhrohhmpefhvghrnhgrnhguohcutfgrmhhoshcuoehgrhgvvghnfhho ohesuhelvddrvghuqeenucggtffrrghtthgvrhhnpeekleekjedtheejheekfefggeevvd fgueegffeuveduhfehueegkeeijedvvdejfeenucevlhhushhtvghrufhiiigvpedtnecu rfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvvghnfhhoohesuhelvddrvghu X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 13 Oct 2021 16:49:28 -0400 (EDT) From: Fernando Ramos To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, sean@poorly.run, linux-doc@vger.kernel.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v4 13/20] drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN() [part 2] Date: Wed, 13 Oct 2021 22:48:39 +0200 Message-Id: <20211013204846.90026-14-greenfoo@u92.eu> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211013204846.90026-1-greenfoo@u92.eu> References: <20211013204846.90026-1-greenfoo@u92.eu> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org As requested in Documentation/gpu/todo.rst, replace driver calls to drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and DRM_MODESET_LOCK_ALL_END() NOTE: I separated this change from the rest of modifications to the i915 driver to point out something special explained next. The only difference between the old drm_modeset_{lock,unlock}_all() functions and the new DRM_MODESET_LOCK_ALL_{BEGIN,END}() macros is that the former use a global context stored in dev->mode_config.acquire_ctx while the latter depend on a user provided one (typically in the stack). This means that as long as no one accesses the global dev->mode_config.acquire_ctx context in the block that runs between lock/BEGIN and unlock/END, the code should be equivalent before and after my changes. The only place where I had to take special action to preserve this condition was here, where I need to modify the old call to intel_modeset_setup_hw_state() to use the new stack allocated context structure instead of the global one. Signed-off-by: Fernando Ramos --- drivers/gpu/drm/i915/display/intel_display.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index c7d9a58f9f98..75b45c01c573 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -10992,6 +10992,7 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915) int intel_modeset_init_nogem(struct drm_i915_private *i915) { struct drm_device *dev = &i915->drm; + struct drm_modeset_acquire_ctx ctx; enum pipe pipe; struct intel_crtc *crtc; int ret; @@ -11043,10 +11044,10 @@ int intel_modeset_init_nogem(struct drm_i915_private *i915) intel_vga_disable(i915); intel_setup_outputs(i915); - drm_modeset_lock_all(dev); - intel_modeset_setup_hw_state(dev, dev->mode_config.acquire_ctx); + DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret); + intel_modeset_setup_hw_state(dev, &ctx); intel_acpi_assign_connector_fwnodes(i915); - drm_modeset_unlock_all(dev); + DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); for_each_intel_crtc(dev, crtc) { if (!to_intel_crtc_state(crtc->base.state)->uapi.active)