drm/nouveau/fence: make internal hooks part of the context

A step towards being able to provide fences from other engines not
connected to PFIFO.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_fence.c

@@ -61,13 +61,12 @@ nouveau_fence_context_new(struct nouveau_fence_chan *fctx)
 static void
 nouveau_fence_update(struct nouveau_channel *chan)
 {
-	struct nouveau_fence_priv *priv = chan->drm->fence;
 	struct nouveau_fence_chan *fctx = chan->fence;
 	struct nouveau_fence *fence, *fnext;
 
 	spin_lock(&fctx->lock);
 	list_for_each_entry_safe(fence, fnext, &fctx->pending, head) {
-		if (priv->read(chan) < fence->sequence)
+		if (fctx->read(chan) < fence->sequence)
 			break;
 
 		if (fence->work)
@@ -82,7 +81,6 @@ nouveau_fence_update(struct nouveau_channel *chan)
 int
 nouveau_fence_emit(struct nouveau_fence *fence, struct nouveau_channel *chan)
 {
-	struct nouveau_fence_priv *priv = chan->drm->fence;
 	struct nouveau_fence_chan *fctx = chan->fence;
 	int ret;
 
@@ -90,7 +88,7 @@ nouveau_fence_emit(struct nouveau_fence *fence, struct nouveau_channel *chan)
 	fence->timeout  = jiffies + (3 * DRM_HZ);
 	fence->sequence = ++fctx->sequence;
 
-	ret = priv->emit(fence);
+	ret = fctx->emit(fence);
 	if (!ret) {
 		kref_get(&fence->kref);
 		spin_lock(&fctx->lock);
@@ -219,14 +217,14 @@ nouveau_fence_wait(struct nouveau_fence *fence, bool lazy, bool intr)
 int
 nouveau_fence_sync(struct nouveau_fence *fence, struct nouveau_channel *chan)
 {
-	struct nouveau_fence_priv *priv = chan->drm->fence;
+	struct nouveau_fence_chan *fctx = chan->fence;
 	struct nouveau_channel *prev;
 	int ret = 0;
 
 	prev = fence ? fence->channel : NULL;
 	if (prev) {
 		if (unlikely(prev != chan && !nouveau_fence_done(fence))) {
-			ret = priv->sync(fence, prev, chan);
+			ret = fctx->sync(fence, prev, chan);
 			if (unlikely(ret))
 				ret = nouveau_fence_wait(fence, true, false);
 		}

drivers/gpu/drm/nouveau/nouveau_fence.h

@@ -29,6 +29,13 @@ struct nouveau_fence_chan {
 	struct list_head pending;
 	struct list_head flip;
 
+	int  (*emit)(struct nouveau_fence *);
+	int  (*sync)(struct nouveau_fence *, struct nouveau_channel *,
+		     struct nouveau_channel *);
+	u32  (*read)(struct nouveau_channel *);
+	int  (*emit32)(struct nouveau_channel *, u64, u32);
+	int  (*sync32)(struct nouveau_channel *, u64, u32);
+
 	spinlock_t lock;
 	u32 sequence;
 };
@@ -39,12 +46,6 @@ struct nouveau_fence_priv {
 	void (*resume)(struct nouveau_drm *);
 	int  (*context_new)(struct nouveau_channel *);
 	void (*context_del)(struct nouveau_channel *);
-	int  (*emit32)(struct nouveau_channel *, u64, u32);
-	int  (*emit)(struct nouveau_fence *);
-	int  (*sync32)(struct nouveau_channel *, u64, u32);
-	int  (*sync)(struct nouveau_fence *, struct nouveau_channel *,
-		     struct nouveau_channel *);
-	u32  (*read)(struct nouveau_channel *);
 
 	wait_queue_head_t waiting;
 	bool uevent;

drivers/gpu/drm/nouveau/nv04_fence.c

@@ -78,6 +78,9 @@ nv04_fence_context_new(struct nouveau_channel *chan)
 	struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL);
 	if (fctx) {
 		nouveau_fence_context_new(&fctx->base);
+		fctx->base.emit = nv04_fence_emit;
+		fctx->base.sync = nv04_fence_sync;
+		fctx->base.read = nv04_fence_read;
 		chan->fence = fctx;
 		return 0;
 	}
@@ -104,8 +107,5 @@ nv04_fence_create(struct nouveau_drm *drm)
 	priv->base.dtor = nv04_fence_destroy;
 	priv->base.context_new = nv04_fence_context_new;
 	priv->base.context_del = nv04_fence_context_del;
-	priv->base.emit = nv04_fence_emit;
-	priv->base.sync = nv04_fence_sync;
-	priv->base.read = nv04_fence_read;
 	return 0;
 }

drivers/gpu/drm/nouveau/nv10_fence.c

@@ -75,6 +75,9 @@ nv10_fence_context_new(struct nouveau_channel *chan)
 		return -ENOMEM;
 
 	nouveau_fence_context_new(&fctx->base);
+	fctx->base.emit = nv10_fence_emit;
+	fctx->base.read = nv10_fence_read;
+	fctx->base.sync = nv10_fence_sync;
 	return 0;
 }
 
@@ -102,9 +105,6 @@ nv10_fence_create(struct nouveau_drm *drm)
 	priv->base.dtor = nv10_fence_destroy;
 	priv->base.context_new = nv10_fence_context_new;
 	priv->base.context_del = nv10_fence_context_del;
-	priv->base.emit = nv10_fence_emit;
-	priv->base.read = nv10_fence_read;
-	priv->base.sync = nv10_fence_sync;
 	spin_lock_init(&priv->lock);
 	return 0;
 }

drivers/gpu/drm/nouveau/nv17_fence.c

@@ -84,6 +84,9 @@ nv17_fence_context_new(struct nouveau_channel *chan)
 		return -ENOMEM;
 
 	nouveau_fence_context_new(&fctx->base);
+	fctx->base.emit = nv10_fence_emit;
+	fctx->base.read = nv10_fence_read;
+	fctx->base.sync = nv17_fence_sync;
 
 	ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
 				 NvSema, 0x0002,
@@ -121,9 +124,6 @@ nv17_fence_create(struct nouveau_drm *drm)
 	priv->base.resume = nv17_fence_resume;
 	priv->base.context_new = nv17_fence_context_new;
 	priv->base.context_del = nv10_fence_context_del;
-	priv->base.emit = nv10_fence_emit;
-	priv->base.read = nv10_fence_read;
-	priv->base.sync = nv17_fence_sync;
 	spin_lock_init(&priv->lock);
 
 	ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,

drivers/gpu/drm/nouveau/nv50_fence.c

@@ -46,6 +46,9 @@ nv50_fence_context_new(struct nouveau_channel *chan)
 		return -ENOMEM;
 
 	nouveau_fence_context_new(&fctx->base);
+	fctx->base.emit = nv10_fence_emit;
+	fctx->base.read = nv10_fence_read;
+	fctx->base.sync = nv17_fence_sync;
 
 	ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
 				 NvSema, 0x0002,
@@ -88,11 +91,9 @@ nv50_fence_create(struct nouveau_drm *drm)
 		return -ENOMEM;
 
 	priv->base.dtor = nv10_fence_destroy;
+	priv->base.resume = nv17_fence_resume;
 	priv->base.context_new = nv50_fence_context_new;
 	priv->base.context_del = nv10_fence_context_del;
-	priv->base.emit = nv10_fence_emit;
-	priv->base.read = nv10_fence_read;
-	priv->base.sync = nv17_fence_sync;
 	spin_lock_init(&priv->lock);
 
 	ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
@@ -108,13 +109,11 @@ nv50_fence_create(struct nouveau_drm *drm)
 			nouveau_bo_ref(NULL, &priv->bo);
 	}
 
-	if (ret == 0) {
-		nouveau_bo_wr32(priv->bo, 0x000, 0x00000000);
-		priv->base.sync = nv17_fence_sync;
-		priv->base.resume = nv17_fence_resume;
+	if (ret) {
+		nv10_fence_destroy(drm);
+		return ret;
 	}
 
-	if (ret)
-		nv10_fence_destroy(drm);
+	nouveau_bo_wr32(priv->bo, 0x000, 0x00000000);
 	return ret;
 }

drivers/gpu/drm/nouveau/nv84_fence.c

@@ -80,22 +80,20 @@ int
 nv84_fence_emit(struct nouveau_fence *fence)
 {
 	struct nouveau_channel *chan = fence->channel;
-	struct nv84_fence_priv *priv = chan->drm->fence;
 	struct nv84_fence_chan *fctx = chan->fence;
 	struct nouveau_fifo_chan *fifo = (void *)chan->object;
 	u64 addr = fctx->vma.offset + fifo->chid * 16;
-	return priv->base.emit32(chan, addr, fence->sequence);
+	return fctx->base.emit32(chan, addr, fence->sequence);
 }
 
 int
 nv84_fence_sync(struct nouveau_fence *fence,
 		struct nouveau_channel *prev, struct nouveau_channel *chan)
 {
-	struct nv84_fence_priv *priv = chan->drm->fence;
 	struct nv84_fence_chan *fctx = chan->fence;
 	struct nouveau_fifo_chan *fifo = (void *)prev->object;
 	u64 addr = fctx->vma.offset + fifo->chid * 16;
-	return priv->base.sync32(chan, addr, fence->sequence);
+	return fctx->base.sync32(chan, addr, fence->sequence);
 }
 
 u32
@@ -139,6 +137,11 @@ nv84_fence_context_new(struct nouveau_channel *chan)
 		return -ENOMEM;
 
 	nouveau_fence_context_new(&fctx->base);
+	fctx->base.emit = nv84_fence_emit;
+	fctx->base.sync = nv84_fence_sync;
+	fctx->base.read = nv84_fence_read;
+	fctx->base.emit32 = nv84_fence_emit32;
+	fctx->base.sync32 = nv84_fence_sync32;
 
 	ret = nouveau_bo_vma_add(priv->bo, client->vm, &fctx->vma);
 	if (ret)
@@ -213,11 +216,6 @@ nv84_fence_create(struct nouveau_drm *drm)
 	priv->base.resume = nv84_fence_resume;
 	priv->base.context_new = nv84_fence_context_new;
 	priv->base.context_del = nv84_fence_context_del;
-	priv->base.emit32 = nv84_fence_emit32;
-	priv->base.emit = nv84_fence_emit;
-	priv->base.sync32 = nv84_fence_sync32;
-	priv->base.sync = nv84_fence_sync;
-	priv->base.read = nv84_fence_read;
 
 	init_waitqueue_head(&priv->base.waiting);
 	priv->base.uevent = true;

drivers/gpu/drm/nouveau/nvc0_fence.c

@@ -66,6 +66,18 @@ nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
 	return ret;
 }
 
+static int
+nvc0_fence_context_new(struct nouveau_channel *chan)
+{
+	int ret = nv84_fence_context_new(chan);
+	if (ret == 0) {
+		struct nv84_fence_chan *fctx = chan->fence;
+		fctx->base.emit32 = nvc0_fence_emit32;
+		fctx->base.sync32 = nvc0_fence_sync32;
+	}
+	return ret;
+}
+
 int
 nvc0_fence_create(struct nouveau_drm *drm)
 {
@@ -80,13 +92,8 @@ nvc0_fence_create(struct nouveau_drm *drm)
 	priv->base.dtor = nv84_fence_destroy;
 	priv->base.suspend = nv84_fence_suspend;
 	priv->base.resume = nv84_fence_resume;
-	priv->base.context_new = nv84_fence_context_new;
+	priv->base.context_new = nvc0_fence_context_new;
 	priv->base.context_del = nv84_fence_context_del;
-	priv->base.emit32 = nvc0_fence_emit32;
-	priv->base.emit = nv84_fence_emit;
-	priv->base.sync32 = nvc0_fence_sync32;
-	priv->base.sync = nv84_fence_sync;
-	priv->base.read = nv84_fence_read;
 
 	init_waitqueue_head(&priv->base.waiting);
 	priv->base.uevent = true;