[PATCH] drm/nouveau: idle all channels before suspending
Maarten Lankhorst
maarten.lankhorst at canonical.com
Mon Apr 8 05:04:01 PDT 2013
Seems to make suspend slightly more reliable on my system.
Cc: stable at vger.kernel.org [3.7+]
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
---
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index b6bdc9f..5032c31 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -464,6 +464,23 @@ nouveau_do_suspend(struct drm_device *dev)
NV_INFO(drm, "evicting buffers...\n");
ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
+ list_for_each_entry(cli, &drm->clients, head) {
+ struct nouveau_abi16 *abi16 = cli->abi16;
+ struct nouveau_abi16_chan *chan;
+
+ if (!abi16)
+ continue;
+
+ list_for_each_entry(chan, &abi16->channels, head)
+ nouveau_channel_idle(chan->chan);
+ }
+
+ if (drm->channel)
+ nouveau_channel_idle(drm->channel);
+
+ if (drm->cechan)
+ nouveau_channel_idle(drm->cechan);
+
if (drm->fence && nouveau_fence(drm)->suspend) {
if (!nouveau_fence(drm)->suspend(drm))
return -ENOMEM;
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