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drm/nouveau/fifo: implement channel creation event generation 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-04-26 11:44:26 +10:00
parent 10eeaf123d
commit 893e90c554
2 changed files with 9 additions and 1 deletions
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7
drivers/gpu/drm/nouveau/core/engine/fifo/base.c
View File

@ -91,6 +91,8 @@ nouveau_fifo_channel_create_(struct nouveau_object *parent,
if (!chan->user)
return -EFAULT;
nouveau_event_trigger(priv->cevent, 0);
chan->size = size;
return 0;
}
@ -167,6 +169,7 @@ nouveau_fifo_destroy(struct nouveau_fifo *priv)
{
kfree(priv->channel);
nouveau_event_destroy(&priv->uevent);
nouveau_event_destroy(&priv->cevent);
nouveau_engine_destroy(&priv->base);
}
@ -191,6 +194,10 @@ nouveau_fifo_create_(struct nouveau_object *parent,
if (!priv->channel)
return -ENOMEM;
ret = nouveau_event_create(1, &priv->cevent);
if (ret)
return ret;
ret = nouveau_event_create(1, &priv->uevent);
if (ret)
return ret;

3
drivers/gpu/drm/nouveau/core/include/engine/fifo.h
View File

@ -65,7 +65,8 @@ struct nouveau_fifo_base {
struct nouveau_fifo {
struct nouveau_engine base;
struct nouveau_event *uevent;
struct nouveau_event *cevent; /* channel creation event */
struct nouveau_event *uevent; /* async user trigger */
struct nouveau_object **channel;
spinlock_t lock;