From eb8bc8dcc5354a1f85d4ea79b1f466dc6273f832 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu, 11 May 2017 10:28:44 +0200
Subject: [PATCH] drm/i915: Remove vma unpin in intel_plane_destroy
Git-commit: eb8bc8dcc5354a1f85d4ea79b1f466dc6273f832
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900
commit a667fb402c1e856209bf9e77ba41fc1cf356b867
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu Dec 15 15:29:44 2016 +0100
drm/i915: Disable all crtcs during driver unload, v2.
made sure that all crtc's are disabled on driver unload, but only the
following commit made sure all fb's are cleaned up correctly:
commit 9b2104f423de5c148749a07e8197dbab4c449877
Date: Tue Feb 21 14:51:40 2017 +0100
drm/atomic: Make disable_all helper fully disable the crtc.
Finally remove this and add a WARN_ON when vma is set. It should
have been removed by intel_cleanup_plane_fb().
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511082844.13965-2-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_atomic_plane.c | 18 +-----------------
1 file changed, 1 insertion(+), 17 deletions(-)
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -102,23 +102,7 @@ void
intel_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
- struct i915_vma *vma;
-
- vma = fetch_and_zero(&to_intel_plane_state(state)->vma);
-
- /*
- * FIXME: Normally intel_cleanup_plane_fb handles destruction of vma.
- * We currently don't clear all planes during driver unload, so we have
- * to be able to unpin vma here for now.
- *
- * Normally this can only happen during unload when kmscon is disabled
- * and userspace doesn't attempt to set a framebuffer at all.
- */
- if (vma) {
- mutex_lock(&plane->dev->struct_mutex);
- intel_unpin_fb_vma(vma);
- mutex_unlock(&plane->dev->struct_mutex);
- }
+ WARN_ON(to_intel_plane_state(state)->vma);
drm_atomic_helper_plane_destroy_state(plane, state);
}