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.
Cc: Ben Skeggs <bske...@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
---
drivers/gpu/drm/nouveau/nouveau_object.c | 2 +-
drivers/gpu/drm/nouveau/nv50_instmem.c | 4 ++--
drivers/gpu/drm/nouveau/nvc0_instmem.c | 2 +-
include/drm/drm_mm.h | 5 +++++
4 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c
b/drivers/gpu/drm/nouveau/nouveau_object.c
index 30b6544..03adfe4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_object.c
+++ b/drivers/gpu/drm/nouveau/nouveau_object.c
@@ -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);
}
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c
b/drivers/gpu/drm/nouveau/nv50_instmem.c
index ea00418..300285a 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -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;
diff --git a/drivers/gpu/drm/nouveau/nvc0_instmem.c
b/drivers/gpu/drm/nouveau/nvc0_instmem.c
index c090917..82357d2 100644
--- a/drivers/gpu/drm/nouveau/nvc0_instmem.c
+++ b/drivers/gpu/drm/nouveau/nvc0_instmem.c
@@ -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);
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index e391777..0d79146 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -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)
*/
--
1.7.2.3
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