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      1 /*	$NetBSD: priv.h,v 1.4 2021/12/19 10:51:58 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NVKM_MMU_PRIV_H__
      5 #define __NVKM_MMU_PRIV_H__
      6 #define nvkm_mmu(p) container_of((p), struct nvkm_mmu, subdev)
      7 #include <subdev/mmu.h>
      8 
      9 void nvkm_mmu_ctor(const struct nvkm_mmu_func *, struct nvkm_device *,
     10 		   int index, struct nvkm_mmu *);
     11 int nvkm_mmu_new_(const struct nvkm_mmu_func *, struct nvkm_device *,
     12 		  int index, struct nvkm_mmu **);
     13 
     14 struct nvkm_mmu_func {
     15 	void (*init)(struct nvkm_mmu *);
     16 
     17 	u8  dma_bits;
     18 
     19 	struct {
     20 		struct nvkm_sclass user;
     21 	} mmu;
     22 
     23 	struct {
     24 		struct nvkm_sclass user;
     25 		int (*vram)(struct nvkm_mmu *, int type, u8 page, u64 size,
     26 			    void *argv, u32 argc, struct nvkm_memory **);
     27 #ifdef __NetBSD__
     28 		int (*umap)(struct nvkm_mmu *, struct nvkm_memory *, void *argv,
     29 			    u32 argc, bus_space_tag_t *, u64 *addr, u64 *size, struct nvkm_vma **);
     30 #else
     31 		int (*umap)(struct nvkm_mmu *, struct nvkm_memory *, void *argv,
     32 			    u32 argc, u64 *addr, u64 *size, struct nvkm_vma **);
     33 #endif
     34 	} mem;
     35 
     36 	struct {
     37 		struct nvkm_sclass user;
     38 		int (*ctor)(struct nvkm_mmu *, bool managed, u64 addr, u64 size,
     39 			    void *argv, u32 argc, struct lock_class_key *,
     40 			    const char *name, struct nvkm_vmm **);
     41 		bool global;
     42 		u32 pd_offset;
     43 	} vmm;
     44 
     45 	const u8 *(*kind)(struct nvkm_mmu *, int *count, u8 *invalid);
     46 	bool kind_sys;
     47 };
     48 
     49 extern const struct nvkm_mmu_func nv04_mmu;
     50 
     51 const u8 *nv50_mmu_kind(struct nvkm_mmu *, int *count, u8 *invalid);
     52 
     53 const u8 *gf100_mmu_kind(struct nvkm_mmu *, int *count, u8 *invalid);
     54 
     55 const u8 *gm200_mmu_kind(struct nvkm_mmu *, int *, u8 *);
     56 
     57 struct nvkm_mmu_pt {
     58 	union {
     59 		struct nvkm_mmu_ptc *ptc;
     60 		struct nvkm_mmu_ptp *ptp;
     61 	};
     62 	struct nvkm_memory *memory;
     63 	bool sub;
     64 	u16 base;
     65 	u64 addr;
     66 	struct list_head head;
     67 };
     68 
     69 void nvkm_mmu_ptc_dump(struct nvkm_mmu *);
     70 struct nvkm_mmu_pt *
     71 nvkm_mmu_ptc_get(struct nvkm_mmu *, u32 size, u32 align, bool zero);
     72 void nvkm_mmu_ptc_put(struct nvkm_mmu *, bool force, struct nvkm_mmu_pt **);
     73 #endif
     74