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drm/nouveau: don't munge in drm_mm internals

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Nouveau was checking drm_mm internals on teardown to see whether the
memory manager was initialized. Hide these internals in a small
inline helper function.

Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Daniel Vetter 2011-02-18 17:59:11 +01:00 committed by Dave Airlie
parent a250b9fdc5
commit 31a5b8ce8f
4 changed files with 9 additions and 4 deletions
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2
drivers/gpu/drm/nouveau/nouveau_object.c
View File

@ -909,7 +909,7 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
nouveau_vm_ref(NULL, &chan->vm, chan->vm_pd);
nouveau_gpuobj_ref(NULL, &chan->vm_pd);
if (chan->ramin_heap.free_stack.next)
if (drm_mm_initialized(&chan->ramin_heap))
drm_mm_takedown(&chan->ramin_heap);
nouveau_gpuobj_ref(NULL, &chan->ramin);
}

4
drivers/gpu/drm/nouveau/nv50_instmem.c
View File

@ -56,7 +56,7 @@ nv50_channel_del(struct nouveau_channel **pchan)
nouveau_gpuobj_ref(NULL, &chan->ramfc);
nouveau_vm_ref(NULL, &chan->vm, chan->vm_pd);
nouveau_gpuobj_ref(NULL, &chan->vm_pd);
if (chan->ramin_heap.free_stack.next)
if (drm_mm_initialized(&chan->ramin_heap))
drm_mm_takedown(&chan->ramin_heap);
nouveau_gpuobj_ref(NULL, &chan->ramin);
kfree(chan);
@ -259,7 +259,7 @@ nv50_instmem_takedown(struct drm_device *dev)
nouveau_gpuobj_ref(NULL, &dev_priv->bar3_vm->pgt[0].obj[0]);
nouveau_vm_ref(NULL, &dev_priv->bar3_vm, NULL);
if (dev_priv->ramin_heap.free_stack.next)
if (drm_mm_initialized(&dev_priv->ramin_heap))
drm_mm_takedown(&dev_priv->ramin_heap);
dev_priv->engine.instmem.priv = NULL;

2
drivers/gpu/drm/nouveau/nvc0_instmem.c
View File

@ -67,7 +67,7 @@ nvc0_channel_del(struct nouveau_channel **pchan)
return;
nouveau_vm_ref(NULL, &chan->vm, NULL);
if (chan->ramin_heap.free_stack.next)
if (drm_mm_initialized(&chan->ramin_heap))
drm_mm_takedown(&chan->ramin_heap);
nouveau_gpuobj_ref(NULL, &chan->ramin);
kfree(chan);

5
include/drm/drm_mm.h
View File

@ -72,6 +72,11 @@ struct drm_mm {
unsigned long scan_end;
};
static inline bool drm_mm_initialized(struct drm_mm *mm)
{
return mm->free_stack.next;
}
/*
* Basic range manager support (drm_mm.c)
*/