1 files changed, 53 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h b/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
new file mode 100644
index 000000000..9363b839a
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
@@ -0,0 +1,53 @@
+#ifndef __NVKM_MEMORY_H__
+#define __NVKM_MEMORY_H__
+#include <core/os.h>
+struct nvkm_device;
+struct nvkm_vma;
+struct nvkm_vm;
+
+enum nvkm_memory_target {
+	NVKM_MEM_TARGET_INST,
+	NVKM_MEM_TARGET_VRAM,
+	NVKM_MEM_TARGET_HOST,
+};
+
+struct nvkm_memory {
+	const struct nvkm_memory_func *func;
+};
+
+struct nvkm_memory_func {
+	void *(*dtor)(struct nvkm_memory *);
+	enum nvkm_memory_target (*target)(struct nvkm_memory *);
+	u64 (*addr)(struct nvkm_memory *);
+	u64 (*size)(struct nvkm_memory *);
+	void (*boot)(struct nvkm_memory *, struct nvkm_vm *);
+	void __iomem *(*acquire)(struct nvkm_memory *);
+	void (*release)(struct nvkm_memory *);
+	u32 (*rd32)(struct nvkm_memory *, u64 offset);
+	void (*wr32)(struct nvkm_memory *, u64 offset, u32 data);
+	void (*map)(struct nvkm_memory *, struct nvkm_vma *, u64 offset);
+};
+
+void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *);
+int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target,
+		    u64 size, u32 align, bool zero, struct nvkm_memory **);
+void nvkm_memory_del(struct nvkm_memory **);
+#define nvkm_memory_target(p) (p)->func->target(p)
+#define nvkm_memory_addr(p) (p)->func->addr(p)
+#define nvkm_memory_size(p) (p)->func->size(p)
+#define nvkm_memory_boot(p,v) (p)->func->boot((p),(v))
+#define nvkm_memory_map(p,v,o) (p)->func->map((p),(v),(o))
+
+/* accessor macros - kmap()/done() must bracket use of the other accessor
+ * macros to guarantee correct behaviour across all chipsets
+ */
+#define nvkm_kmap(o)     (o)->func->acquire(o)
+#define nvkm_ro32(o,a)   (o)->func->rd32((o), (a))
+#define nvkm_wo32(o,a,d) (o)->func->wr32((o), (a), (d))
+#define nvkm_mo32(o,a,m,d) ({                                                  \
+	u32 _addr = (a), _data = nvkm_ro32((o), _addr);                        \
+	nvkm_wo32((o), _addr, (_data & ~(m)) | (d));                           \
+	_data;                                                                 \
+})
+#define nvkm_done(o)     (o)->func->release(o)
+#endif