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authorBen Skeggs <bskeggs@redhat.com>2010-10-06 16:16:59 +1000
committerBen Skeggs <bskeggs@redhat.com>2010-12-03 15:05:18 +1000
commitcff5c1332486ced8ff4180e957e04983cb72a39e (patch)
treeec1f6687156277632aef96693c1b8eca0c022b7c /drivers/gpu/drm/nouveau/nouveau_state.c
parentdrm/nouveau: add per-channel mutex, use to lock access to drm's channel (diff)
downloadlinux-dev-cff5c1332486ced8ff4180e957e04983cb72a39e.tar.xz
linux-dev-cff5c1332486ced8ff4180e957e04983cb72a39e.zip
drm/nouveau: add more fine-grained locking to channel list + structures
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_state.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_state.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 049f755567e5..513c1063fb5e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -516,11 +516,11 @@ nouveau_card_init_channel(struct drm_device *dev)
if (ret)
goto out_err;
+ mutex_unlock(&dev_priv->channel->mutex);
return 0;
out_err:
- nouveau_channel_free(dev_priv->channel);
- dev_priv->channel = NULL;
+ nouveau_channel_put(&dev_priv->channel);
return ret;
}
@@ -567,6 +567,7 @@ nouveau_card_init(struct drm_device *dev)
if (ret)
goto out;
engine = &dev_priv->engine;
+ spin_lock_init(&dev_priv->channels.lock);
spin_lock_init(&dev_priv->context_switch_lock);
/* Make the CRTCs and I2C buses accessible */
@@ -713,8 +714,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
if (!engine->graph.accel_blocked) {
nouveau_fence_fini(dev);
- nouveau_channel_free(dev_priv->channel);
- dev_priv->channel = NULL;
+ nouveau_channel_put(&dev_priv->channel);
}
if (!nouveau_noaccel) {