From patchwork Tue Feb 11 10:16:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 11375143 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7696F921 for ; Tue, 11 Feb 2020 10:16:36 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5519820842 for ; Tue, 11 Feb 2020 10:16:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fAiOQG7U" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5519820842 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D0F446EA11; Tue, 11 Feb 2020 10:16:33 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) by gabe.freedesktop.org (Postfix) with ESMTPS id 896646EA11 for ; Tue, 11 Feb 2020 10:16:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581416190; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc; bh=sda4jswTQqDClp+1BqO3sE4MRSxFm9X8kK4k52jxa60=; b=fAiOQG7UgixTDfYhqfAivpb6o+N7XMQbRdbfgT68s9BvyROX1j88ZlKvRZdxUyDflVx8s8 djvcxSx8gLbONqqTyHM1E9BoYnLmRTySyLLj/BjlcCxQe/7KM6A2PBG1Jt0Gm8SXxVrLbX 6Oa2LH+C3rrNvNDX7jBZZ5mXKaMrUX8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-54-CXHpP1NgOpKuenAxC4JNAA-1; Tue, 11 Feb 2020 05:16:21 -0500 X-MC-Unique: CXHpP1NgOpKuenAxC4JNAA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8357E107ACC7; Tue, 11 Feb 2020 10:16:20 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-112.ams2.redhat.com [10.36.116.112]) by smtp.corp.redhat.com (Postfix) with ESMTP id 12B6D10016DA; Tue, 11 Feb 2020 10:16:17 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 0EFBE16E15; Tue, 11 Feb 2020 11:16:16 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org Subject: [PATCH v3] drm/cirrus: add drm_driver.release callback. Date: Tue, 11 Feb 2020 11:16:15 +0100 Message-Id: <20200211101616.16065-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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: David Airlie , open list , "open list:DRM DRIVER FOR QEMU'S CIRRUS DEVICE" , Gerd Hoffmann , Dave Airlie MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Move final cleanups from cirrus_pci_remove() to the new callback. Add drm_atomic_helper_shutdown() call to cirrus_pci_remove(). Use drm_dev_{enter,exit,unplug} to avoid touching hardware after device removal. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/cirrus/cirrus.c | 43 ++++++++++++++++++++++++++++----- 1 file changed, 37 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c index a91fb0d7282c..d2ff63ce8eaf 100644 --- a/drivers/gpu/drm/cirrus/cirrus.c +++ b/drivers/gpu/drm/cirrus/cirrus.c @@ -151,9 +151,13 @@ static int cirrus_pitch(struct drm_framebuffer *fb) static void cirrus_set_start_address(struct cirrus_device *cirrus, u32 offset) { + int idx; u32 addr; u8 tmp; + if (!drm_dev_enter(&cirrus->dev, &idx)) + return; + addr = offset >> 2; wreg_crt(cirrus, 0x0c, (u8)((addr >> 8) & 0xff)); wreg_crt(cirrus, 0x0d, (u8)(addr & 0xff)); @@ -168,6 +172,8 @@ static void cirrus_set_start_address(struct cirrus_device *cirrus, u32 offset) tmp &= 0x7f; tmp |= (addr >> 12) & 0x80; wreg_crt(cirrus, 0x1d, tmp); + + drm_dev_exit(idx); } static int cirrus_mode_set(struct cirrus_device *cirrus, @@ -176,9 +182,12 @@ static int cirrus_mode_set(struct cirrus_device *cirrus, { int hsyncstart, hsyncend, htotal, hdispend; int vtotal, vdispend; - int tmp; + int tmp, idx; int sr07 = 0, hdr = 0; + if (!drm_dev_enter(&cirrus->dev, &idx)) + return -1; + htotal = mode->htotal / 8; hsyncend = mode->hsync_end / 8; hsyncstart = mode->hsync_start / 8; @@ -264,6 +273,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus, hdr = 0xc5; break; default: + drm_dev_exit(idx); return -1; } @@ -292,6 +302,8 @@ static int cirrus_mode_set(struct cirrus_device *cirrus, /* Unblank (needed on S3 resume, vgabios doesn't do it then) */ outb(0x20, 0x3c0); + + drm_dev_exit(idx); return 0; } @@ -300,10 +312,16 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, { struct cirrus_device *cirrus = fb->dev->dev_private; void *vmap; + int idx, ret; + ret = -ENODEV; + if (!drm_dev_enter(&cirrus->dev, &idx)) + goto out; + + ret = -ENOMEM; vmap = drm_gem_shmem_vmap(fb->obj[0]); if (!vmap) - return -ENOMEM; + goto out_dev_exit; if (cirrus->cpp == fb->format->cpp[0]) drm_fb_memcpy_dstclip(cirrus->vram, @@ -323,7 +341,12 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, WARN_ON_ONCE("cpp mismatch"); drm_gem_shmem_vunmap(fb->obj[0], vmap); - return 0; + ret = 0; + +out_dev_exit: + drm_dev_exit(idx); +out: + return ret; } static int cirrus_fb_blit_fullscreen(struct drm_framebuffer *fb) @@ -502,6 +525,14 @@ static void cirrus_mode_config_init(struct cirrus_device *cirrus) /* ------------------------------------------------------------------ */ +static void cirrus_release(struct drm_device *dev) +{ + struct cirrus_device *cirrus = dev->dev_private; + + drm_mode_config_cleanup(dev); + kfree(cirrus); +} + DEFINE_DRM_GEM_FOPS(cirrus_fops); static struct drm_driver cirrus_driver = { @@ -515,6 +546,7 @@ static struct drm_driver cirrus_driver = { .fops = &cirrus_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .release = cirrus_release, }; static int cirrus_pci_probe(struct pci_dev *pdev, @@ -598,12 +630,11 @@ static void cirrus_pci_remove(struct pci_dev *pdev) struct drm_device *dev = pci_get_drvdata(pdev); struct cirrus_device *cirrus = dev->dev_private; - drm_dev_unregister(dev); - drm_mode_config_cleanup(dev); + drm_dev_unplug(dev); + drm_atomic_helper_shutdown(dev); iounmap(cirrus->mmio); iounmap(cirrus->vram); drm_dev_put(dev); - kfree(cirrus); pci_release_regions(pdev); }