Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into drm-fixes

* 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next:
  drm/nv50: initialize ramht_refs list for faked 0 channel
  drm/nouveau: Don't take struct_mutex around the pushbuf IOCTL.
  drm/nouveau: Take fence spinlock before reading the last sequence.

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 6b208ff..87ac21e 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -64,16 +64,17 @@ nouveau_fence_update(struct nouveau_channel *chan)
        struct nouveau_fence *fence;
        uint32_t sequence;
 
+       spin_lock(&chan->fence.lock);
+
        if (USE_REFCNT)
                sequence = nvchan_rd32(chan, 0x48);
        else
                sequence = atomic_read(&chan->fence.last_sequence_irq);
 
        if (chan->fence.sequence_ack == sequence)
-               return;
+               goto out;
        chan->fence.sequence_ack = sequence;
 
-       spin_lock(&chan->fence.lock);
        list_for_each_safe(entry, tmp, &chan->fence.pending) {
                fence = list_entry(entry, struct nouveau_fence, entry);
 
@@ -85,6 +86,7 @@ nouveau_fence_update(struct nouveau_channel *chan)
                if (sequence == chan->fence.sequence_ack)
                        break;
        }
+out:
        spin_unlock(&chan->fence.lock);
 }
 

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 581c67c..ead7b8f 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -245,7 +245,7 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
                list_del(&nvbo->entry);
                nvbo->reserved_by = NULL;
                ttm_bo_unreserve(&nvbo->bo);
-               drm_gem_object_unreference(nvbo->gem);
+               drm_gem_object_unreference_unlocked(nvbo->gem);
        }
 }
 
@@ -300,7 +300,7 @@ retry:
                        validate_fini(op, NULL);
                        if (ret == -EAGAIN)
                                ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
-                       drm_gem_object_unreference(gem);
+                       drm_gem_object_unreference_unlocked(gem);
                        if (ret) {
                                NV_ERROR(dev, "fail reserve\n");
                                return ret;
@@ -616,8 +616,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
                return PTR_ERR(bo);
        }
 
-       mutex_lock(&dev->struct_mutex);
-
        /* Mark push buffers as being used on PFIFO, the validation code
         * will then make sure that if the pushbuf bo moves, that they
         * happen on the kernel channel, which will in turn cause a sync
@@ -731,7 +729,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 out:
        validate_fini(&op, fence);
        nouveau_fence_unref((void**)&fence);
-       mutex_unlock(&dev->struct_mutex);
        kfree(bo);
        kfree(push);
 

diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index c95bf9b..91ef93c 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -139,6 +139,8 @@ nv50_instmem_init(struct drm_device *dev)
        chan->file_priv = (struct drm_file *)-2;
        dev_priv->fifos[0] = dev_priv->fifos[127] = chan;
 
+       INIT_LIST_HEAD(&chan->ramht_refs);
+
        /* Channel's PRAMIN object + heap */
        ret = nouveau_gpuobj_new_fake(dev, 0, c_offset, c_size, 0,
                                                        NULL, &chan->ramin);