From patchwork Thu Jul 14 17:42:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lyude Paul X-Patchwork-Id: 12918294 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 ACF02CCA47C for ; Thu, 14 Jul 2022 17:43:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 796B510FBD7; Thu, 14 Jul 2022 17:43:04 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7A58210F9B1 for ; Thu, 14 Jul 2022 17:43:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1657820579; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=R9AEOUmtX+lVZi2/EB6jnvVw/5MhFema8XEZWIvnJww=; b=UenCpB3/QjtA2nI1j/uTAlPGGpzevcpRZcqLF8BXKRMBVMDaWUVjd1urwzPSW26Rnvo6yS MnxF4HIKMALp+bixOn1ksDjl3/CIDkV3pQW+UJ6DAcgX7OIFR2+bqgDFBBMr5zhTU6ncVc wHf2kCW0TNeCzdZ/bmNlqJ1lIUY5SHg= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-379-BccJ-5lMNxCZ0y_RxTr4yQ-1; Thu, 14 Jul 2022 13:42:54 -0400 X-MC-Unique: BccJ-5lMNxCZ0y_RxTr4yQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7C85418E5383; Thu, 14 Jul 2022 17:42:53 +0000 (UTC) Received: from emerald.redhat.com (unknown [10.22.10.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2E5DB400EAB2; Thu, 14 Jul 2022 17:42:53 +0000 (UTC) From: Lyude Paul To: nouveau@lists.freedesktop.org Subject: [PATCH v2 2/2] drm/nouveau: Don't pm_runtime_put_sync(), only pm_runtime_put_autosuspend() Date: Thu, 14 Jul 2022 13:42:34 -0400 Message-Id: <20220714174234.949259-3-lyude@redhat.com> In-Reply-To: <20220714174234.949259-1-lyude@redhat.com> References: <20220714174234.949259-1-lyude@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 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: Karol Herbst , David Airlie , open list , dri-devel@lists.freedesktop.org, Ben Skeggs Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" While trying to fix another issue, it occurred to me that I don't actually think there is any situation where we want pm_runtime_put() in nouveau to be synchronous. In fact, this kind of just seems like it would cause issues where we may unexpectedly block a thread we don't expect to be blocked. So, let's only use pm_runtime_put_autosuspend(). Changes since v1: * Use pm_runtime_put_autosuspend(), not pm_runtime_put() Signed-off-by: Lyude Paul --- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 9f5a45f24e5be..a2f5df568ca54 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -515,7 +515,7 @@ nouveau_display_hpd_work(struct work_struct *work) pm_runtime_mark_last_busy(drm->dev->dev); noop: - pm_runtime_put_sync(drm->dev->dev); + pm_runtime_put_autosuspend(dev->dev); } #ifdef CONFIG_ACPI diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 5226323e55d34..3c7e0c9d6baf1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -467,7 +467,7 @@ nouveau_fbcon_set_suspend_work(struct work_struct *work) if (state == FBINFO_STATE_RUNNING) { nouveau_fbcon_hotplug_resume(drm->fbcon); pm_runtime_mark_last_busy(drm->dev->dev); - pm_runtime_put_sync(drm->dev->dev); + pm_runtime_put_autosuspend(drm->dev->dev); } }