1 /* SPDX-License-Identifier: MIT */
2 
3 #ifndef __NOUVEAU_UVMM_H__
4 #define __NOUVEAU_UVMM_H__
5 
6 #include <drm/drm_gpuva_mgr.h>
7 
8 #include "nouveau_drv.h"
9 
10 struct nouveau_uvmm {
11 	struct nouveau_vmm vmm;
12 	struct drm_gpuva_manager umgr;
13 	struct maple_tree region_mt;
14 	struct mutex mutex;
15 	struct dma_resv resv;
16 
17 	u64 kernel_managed_addr;
18 	u64 kernel_managed_size;
19 
20 	bool disabled;
21 };
22 
23 struct nouveau_uvma_region {
24 	struct nouveau_uvmm *uvmm;
25 
26 	struct {
27 		u64 addr;
28 		u64 range;
29 	} va;
30 
31 	struct kref kref;
32 
33 	struct completion complete;
34 	bool dirty;
35 };
36 
37 struct nouveau_uvma {
38 	struct drm_gpuva va;
39 
40 	struct nouveau_uvma_region *region;
41 	u8 kind;
42 };
43 
44 #define uvmm_from_mgr(x) container_of((x), struct nouveau_uvmm, umgr)
45 #define uvma_from_va(x) container_of((x), struct nouveau_uvma, va)
46 
47 #define to_uvmm(x) uvmm_from_mgr((x)->va.mgr)
48 
49 struct nouveau_uvmm_bind_job {
50 	struct nouveau_job base;
51 
52 	struct kref kref;
53 	struct list_head entry;
54 	struct work_struct work;
55 	struct completion complete;
56 
57 	/* struct bind_job_op */
58 	struct list_head ops;
59 };
60 
61 struct nouveau_uvmm_bind_job_args {
62 	struct drm_file *file_priv;
63 	struct nouveau_sched_entity *sched_entity;
64 
65 	unsigned int flags;
66 
67 	struct {
68 		struct drm_nouveau_sync *s;
69 		u32 count;
70 	} in_sync;
71 
72 	struct {
73 		struct drm_nouveau_sync *s;
74 		u32 count;
75 	} out_sync;
76 
77 	struct {
78 		struct drm_nouveau_vm_bind_op *s;
79 		u32 count;
80 	} op;
81 };
82 
83 #define to_uvmm_bind_job(job) container_of((job), struct nouveau_uvmm_bind_job, base)
84 
85 int nouveau_uvmm_init(struct nouveau_uvmm *uvmm, struct nouveau_cli *cli,
86 		      u64 kernel_managed_addr, u64 kernel_managed_size);
87 void nouveau_uvmm_fini(struct nouveau_uvmm *uvmm);
88 
89 void nouveau_uvmm_bo_map_all(struct nouveau_bo *nvbov, struct nouveau_mem *mem);
90 void nouveau_uvmm_bo_unmap_all(struct nouveau_bo *nvbo);
91 
92 int nouveau_uvmm_ioctl_vm_init(struct drm_device *dev, void *data,
93 			       struct drm_file *file_priv);
94 
95 int nouveau_uvmm_ioctl_vm_bind(struct drm_device *dev, void *data,
96 			       struct drm_file *file_priv);
97 
98 static inline void nouveau_uvmm_lock(struct nouveau_uvmm *uvmm)
99 {
100 	mutex_lock(&uvmm->mutex);
101 }
102 
103 static inline void nouveau_uvmm_unlock(struct nouveau_uvmm *uvmm)
104 {
105 	mutex_unlock(&uvmm->mutex);
106 }
107 
108 #endif
109