From patchwork Wed Aug 27 13:22:01 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 4788171 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 872179F2A9 for ; Wed, 27 Aug 2014 13:23:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6426F20123 for ; Wed, 27 Aug 2014 13:23:14 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id EAD432015E for ; Wed, 27 Aug 2014 13:22:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C0A7B6E369; Wed, 27 Aug 2014 06:22:41 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pegasos-out.vodafone.de (pegasos-out.vodafone.de [80.84.1.38]) by gabe.freedesktop.org (Postfix) with ESMTP id CB7746E355 for ; Wed, 27 Aug 2014 06:22:39 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by pegasos-out.vodafone.de (Rohrpostix1 Daemon) with ESMTP id 42174261435 for ; Wed, 27 Aug 2014 15:22:39 +0200 (CEST) X-Virus-Scanned: amavisd-new at vodafone.de X-Spam-Score: 0.165 X-Spam-Level: X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Authentication-Results: rohrpostix1.prod.vfnet.de (amavisd-new); dkim=softfail (invalid, public key: DNS query timeout for mail._domainkey.vodafone.de) header.i=@vodafone.de Received: from pegasos-out.vodafone.de ([127.0.0.1]) by localhost (rohrpostix1.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gMyckMxo7XNf for ; Wed, 27 Aug 2014 15:22:13 +0200 (CEST) Received: from smtp-03.vodafone.de (smtp-03.vodafone.de [10.215.254.38]) by pegasos-out.vodafone.de (Rohrpostix1 Daemon) with ESMTP id A05AF261406; Wed, 27 Aug 2014 15:22:13 +0200 (CEST) X-DKIM: OpenDKIM Filter v2.6.8 pegasos-out.vodafone.de A05AF261406 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vodafone.de; s=mail; t=1409145733; bh=v/q4dn1fWJXiL4az4NbMGv7vHIn5QULQPvVkEoBfTr0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Atkpf9Pn1NHg7fNDJBV+3AIvbTEpoeA9O4GIaEqiZnPma85JSZanny50jqGGg7PeY mntOiZR7I3NLeJYF2NRWIY8FUVW19l3OvqpnqtATdJ8aaL89cFeWFMgWc94esBoAmy 5mdqw80Fv60W+iLt7Zo8i13k7jBYLYbDpl0cXDR8= X-Virus-Scanned: amavisd-new at vodafone.de Received: from smtp-03.vodafone.de ([127.0.0.1]) by localhost (xsmail-dmz7.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3TY9ejGkToSE; Wed, 27 Aug 2014 15:22:00 +0200 (CEST) From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: alexdeucher@gmail.com, maarten.lankhorst@canonical.com Subject: [PATCH 9/9] drm/radeon: drop doing resets in a work item Date: Wed, 27 Aug 2014 15:22:01 +0200 Message-Id: <1409145721-32136-10-git-send-email-deathsimple@vodafone.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1409145721-32136-1-git-send-email-deathsimple@vodafone.de> References: <1409145721-32136-1-git-send-email-deathsimple@vodafone.de> MIME-Version: 1.0 Cc: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Christian König Blocking completely innocent processes with a GPU reset is a pretty bad idea. Just set needs_reset and let the next command submission or fence wait do the job. Signed-off-by: Christian König Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/radeon/cik.c | 6 ++++-- drivers/gpu/drm/radeon/radeon.h | 1 - drivers/gpu/drm/radeon/radeon_device.c | 7 ++++--- drivers/gpu/drm/radeon/radeon_irq_kms.c | 18 ------------------ 4 files changed, 8 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index db11446..c2eca22 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -8237,8 +8237,10 @@ restart_ih: } if (queue_hotplug) schedule_work(&rdev->hotplug_work); - if (queue_reset) - schedule_work(&rdev->reset_work); + if (queue_reset) { + rdev->needs_reset = true; + wake_up_all(&rdev->fence_queue); + } if (queue_thermal) schedule_work(&rdev->pm.dpm.thermal.work); rdev->ih.rptr = rptr; diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ca74b72..fa66f65 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2346,7 +2346,6 @@ struct radeon_device { struct radeon_mec mec; struct work_struct hotplug_work; struct work_struct audio_work; - struct work_struct reset_work; int num_crtc; /* number of crtcs */ struct mutex dc_hw_i2c_mutex; /* display controller hw i2c mutex */ bool has_uvd; diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 9f66637..d30f1cc 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1673,9 +1673,6 @@ int radeon_gpu_reset(struct radeon_device *rdev) return 0; } - rdev->in_reset = true; - rdev->needs_reset = false; - radeon_save_bios_scratch_regs(rdev); /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev); @@ -1738,6 +1735,10 @@ int radeon_gpu_reset(struct radeon_device *rdev) radeon_hpd_init(rdev); ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched); + + rdev->in_reset = true; + rdev->needs_reset = false; + downgrade_write(&rdev->exclusive_lock); drm_helper_resume_force_mode(rdev->ddev); diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 16807af..f0bff4b 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -88,23 +88,6 @@ static void radeon_hotplug_work_func(struct work_struct *work) } /** - * radeon_irq_reset_work_func - execute gpu reset - * - * @work: work struct - * - * Execute scheduled gpu reset (cayman+). - * This function is called when the irq handler - * thinks we need a gpu reset. - */ -static void radeon_irq_reset_work_func(struct work_struct *work) -{ - struct radeon_device *rdev = container_of(work, struct radeon_device, - reset_work); - - radeon_gpu_reset(rdev); -} - -/** * radeon_driver_irq_preinstall_kms - drm irq preinstall callback * * @dev: drm dev pointer @@ -284,7 +267,6 @@ int radeon_irq_kms_init(struct radeon_device *rdev) INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func); INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi); - INIT_WORK(&rdev->reset_work, radeon_irq_reset_work_func); rdev->irq.installed = true; r = drm_irq_install(rdev->ddev, rdev->ddev->pdev->irq);