1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/intr.h b/drivers/gpu/drm/nouveau/include/nvkm/core/intr.h
new file mode 100644
index 000000000000..a003d6a544b0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/intr.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_INTR_H__
+#define __NVKM_INTR_H__
+#include <core/os.h>
+struct nvkm_device;
+struct nvkm_subdev;
+
+enum nvkm_intr_prio {
+	NVKM_INTR_PRIO_VBLANK = 0,
+	NVKM_INTR_PRIO_NORMAL,
+	NVKM_INTR_PRIO_NR
+};
+
+enum nvkm_intr_type {
+	NVKM_INTR_SUBDEV   = -1, /* lookup vector by requesting subdev, in mapping table. */
+	NVKM_INTR_VECTOR_0 = 0,
+};
+
+struct nvkm_intr {
+	const struct nvkm_intr_func {
+		bool (*pending)(struct nvkm_intr *);
+		void (*unarm)(struct nvkm_intr *);
+		void (*rearm)(struct nvkm_intr *);
+		void (*block)(struct nvkm_intr *, int leaf, u32 mask);
+		void (*allow)(struct nvkm_intr *, int leaf, u32 mask);
+		void (*reset)(struct nvkm_intr *, int leaf, u32 mask);
+	} *func;
+	const struct nvkm_intr_data {
+		int type; /* enum nvkm_subdev_type (+ve), enum nvkm_intr_type (-ve) */
+		int inst;
+		int leaf;
+		u32 mask; /* 0-terminated. */
+		bool legacy; /* auto-create "legacy" nvkm_subdev_intr() handler */
+	} *data;
+
+	struct nvkm_subdev *subdev;
+	int leaves;
+	u32 *stat;
+	u32 *mask;
+
+	struct list_head head;
+};
+
+void nvkm_intr_ctor(struct nvkm_device *);
+void nvkm_intr_dtor(struct nvkm_device *);
+int nvkm_intr_install(struct nvkm_device *);
+void nvkm_intr_unarm(struct nvkm_device *);
+void nvkm_intr_rearm(struct nvkm_device *);
+
+int nvkm_intr_add(const struct nvkm_intr_func *, const struct nvkm_intr_data *,
+		  struct nvkm_subdev *, int leaves, struct nvkm_intr *);
+void nvkm_intr_block(struct nvkm_subdev *, enum nvkm_intr_type);
+void nvkm_intr_allow(struct nvkm_subdev *, enum nvkm_intr_type);
+
+struct nvkm_inth;
+typedef irqreturn_t (*nvkm_inth_func)(struct nvkm_inth *);
+
+struct nvkm_inth {
+	struct nvkm_intr *intr;
+	int leaf;
+	u32 mask;
+	nvkm_inth_func func;
+
+	atomic_t allowed;
+
+	struct list_head head;
+};
+
+int nvkm_inth_add(struct nvkm_intr *, enum nvkm_intr_type, enum nvkm_intr_prio,
+		  struct nvkm_subdev *, nvkm_inth_func, struct nvkm_inth *);
+void nvkm_inth_allow(struct nvkm_inth *);
+void nvkm_inth_block(struct nvkm_inth *);
+#endif