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a8c21a54 T |
1 | /* |
2 | * Copyright (C) 2015 Etnaviv Project | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License version 2 as published by | |
6 | * the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #ifndef __ETNAVIV_GEM_H__ | |
18 | #define __ETNAVIV_GEM_H__ | |
19 | ||
20 | #include <linux/reservation.h> | |
21 | #include "etnaviv_drv.h" | |
22 | ||
6e2b98cf | 23 | struct dma_fence; |
a8c21a54 T |
24 | struct etnaviv_gem_ops; |
25 | struct etnaviv_gem_object; | |
26 | ||
27 | struct etnaviv_gem_userptr { | |
28 | uintptr_t ptr; | |
29 | struct task_struct *task; | |
30 | struct work_struct *work; | |
31 | bool ro; | |
32 | }; | |
33 | ||
34 | struct etnaviv_vram_mapping { | |
35 | struct list_head obj_node; | |
36 | struct list_head scan_node; | |
37 | struct list_head mmu_node; | |
38 | struct etnaviv_gem_object *object; | |
39 | struct etnaviv_iommu *mmu; | |
40 | struct drm_mm_node vram_node; | |
41 | unsigned int use; | |
42 | u32 iova; | |
43 | }; | |
44 | ||
45 | struct etnaviv_gem_object { | |
46 | struct drm_gem_object base; | |
47 | const struct etnaviv_gem_ops *ops; | |
48 | struct mutex lock; | |
49 | ||
50 | u32 flags; | |
51 | ||
52 | struct list_head gem_node; | |
53 | struct etnaviv_gpu *gpu; /* non-null if active */ | |
54 | atomic_t gpu_active; | |
55 | u32 access; | |
56 | ||
57 | struct page **pages; | |
58 | struct sg_table *sgt; | |
59 | void *vaddr; | |
60 | ||
61 | /* normally (resv == &_resv) except for imported bo's */ | |
62 | struct reservation_object *resv; | |
63 | struct reservation_object _resv; | |
64 | ||
65 | struct list_head vram_list; | |
66 | ||
67 | /* cache maintenance */ | |
68 | u32 last_cpu_prep_op; | |
69 | ||
70 | struct etnaviv_gem_userptr userptr; | |
71 | }; | |
72 | ||
73 | static inline | |
74 | struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj) | |
75 | { | |
76 | return container_of(obj, struct etnaviv_gem_object, base); | |
77 | } | |
78 | ||
79 | struct etnaviv_gem_ops { | |
80 | int (*get_pages)(struct etnaviv_gem_object *); | |
81 | void (*release)(struct etnaviv_gem_object *); | |
a0a5ab3e | 82 | void *(*vmap)(struct etnaviv_gem_object *); |
a10e2bde | 83 | int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *); |
a8c21a54 T |
84 | }; |
85 | ||
86 | static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj) | |
87 | { | |
88 | return atomic_read(&etnaviv_obj->gpu_active) != 0; | |
89 | } | |
90 | ||
91 | #define MAX_CMDS 4 | |
92 | ||
8779aa8f RK |
93 | struct etnaviv_gem_submit_bo { |
94 | u32 flags; | |
95 | struct etnaviv_gem_object *obj; | |
96 | struct etnaviv_vram_mapping *mapping; | |
97 | }; | |
98 | ||
a8c21a54 T |
99 | /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc, |
100 | * associated with the cmdstream submission for synchronization (and | |
101 | * make it easier to unwind when things go wrong, etc). This only | |
102 | * lasts for the duration of the submit-ioctl. | |
103 | */ | |
104 | struct etnaviv_gem_submit { | |
105 | struct drm_device *dev; | |
106 | struct etnaviv_gpu *gpu; | |
107 | struct ww_acquire_ctx ticket; | |
6e2b98cf | 108 | struct dma_fence *fence; |
f4a4381b | 109 | u32 flags; |
a8c21a54 | 110 | unsigned int nr_bos; |
8779aa8f | 111 | struct etnaviv_gem_submit_bo bos[0]; |
f4a4381b | 112 | /* No new members here, the previous one is variable-length! */ |
a8c21a54 T |
113 | }; |
114 | ||
115 | int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj, | |
116 | struct timespec *timeout); | |
117 | int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags, | |
118 | struct reservation_object *robj, const struct etnaviv_gem_ops *ops, | |
119 | struct etnaviv_gem_object **res); | |
54f09288 | 120 | void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj); |
a8c21a54 T |
121 | struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj); |
122 | void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj); | |
123 | ||
b6325f40 RK |
124 | struct etnaviv_vram_mapping *etnaviv_gem_mapping_get( |
125 | struct drm_gem_object *obj, struct etnaviv_gpu *gpu); | |
126 | void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping); | |
127 | void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping); | |
128 | ||
a8c21a54 | 129 | #endif /* __ETNAVIV_GEM_H__ */ |