1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h
new file mode 100644
index 000000000..4887caa69
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NOUVEAU_FENCE_H__
+#define __NOUVEAU_FENCE_H__
+
+#include <linux/dma-fence.h>
+#include <nvif/notify.h>
+
+struct nouveau_drm;
+struct nouveau_bo;
+
+struct nouveau_fence {
+	struct dma_fence base;
+
+	struct list_head head;
+
+	struct nouveau_channel __rcu *channel;
+	unsigned long timeout;
+};
+
+int  nouveau_fence_new(struct nouveau_channel *, bool sysmem,
+		       struct nouveau_fence **);
+void nouveau_fence_unref(struct nouveau_fence **);
+
+int  nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *);
+bool nouveau_fence_done(struct nouveau_fence *);
+int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
+int  nouveau_fence_sync(struct nouveau_bo *, struct nouveau_channel *, bool exclusive, bool intr);
+
+struct nouveau_fence_chan {
+	spinlock_t lock;
+	struct kref fence_ref;
+
+	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);
+
+	u32 sequence;
+	u32 context;
+	char name[32];
+
+	struct nvif_notify notify;
+	int notify_ref, dead;
+};
+
+struct nouveau_fence_priv {
+	void (*dtor)(struct nouveau_drm *);
+	bool (*suspend)(struct nouveau_drm *);
+	void (*resume)(struct nouveau_drm *);
+	int  (*context_new)(struct nouveau_channel *);
+	void (*context_del)(struct nouveau_channel *);
+
+	bool uevent;
+};
+
+#define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
+
+void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
+void nouveau_fence_context_del(struct nouveau_fence_chan *);
+void nouveau_fence_context_free(struct nouveau_fence_chan *);
+void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
+
+int nv04_fence_create(struct nouveau_drm *);
+int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
+
+int  nv10_fence_emit(struct nouveau_fence *);
+int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
+		     struct nouveau_channel *);
+u32  nv10_fence_read(struct nouveau_channel *);
+void nv10_fence_context_del(struct nouveau_channel *);
+void nv10_fence_destroy(struct nouveau_drm *);
+int  nv10_fence_create(struct nouveau_drm *);
+
+int  nv17_fence_create(struct nouveau_drm *);
+void nv17_fence_resume(struct nouveau_drm *drm);
+
+int nv50_fence_create(struct nouveau_drm *);
+int nv84_fence_create(struct nouveau_drm *);
+int nvc0_fence_create(struct nouveau_drm *);
+
+struct nv84_fence_chan {
+	struct nouveau_fence_chan base;
+	struct nouveau_vma *vma;
+};
+
+struct nv84_fence_priv {
+	struct nouveau_fence_priv base;
+	struct nouveau_bo *bo;
+	u32 *suspend;
+	struct mutex mutex;
+};
+
+int  nv84_fence_context_new(struct nouveau_channel *);
+
+#endif