[go: nahoru, domu]
1#ifndef __NOUVEAU_BO_H__
2#define __NOUVEAU_BO_H__
3
4#include <drm/drm_gem.h>
5
6struct nouveau_channel;
7struct nouveau_fence;
8struct nouveau_vma;
9
10struct nouveau_bo {
11	struct ttm_buffer_object bo;
12	struct ttm_placement placement;
13	u32 valid_domains;
14	struct ttm_place placements[3];
15	struct ttm_place busy_placements[3];
16	struct ttm_bo_kmap_obj kmap;
17	struct list_head head;
18
19	/* protected by ttm_bo_reserve() */
20	struct drm_file *reserved_by;
21	struct list_head entry;
22	int pbbo_index;
23	bool validate_mapped;
24
25	struct list_head vma_list;
26	unsigned page_shift;
27
28	u32 tile_mode;
29	u32 tile_flags;
30	struct nouveau_drm_tile *tile;
31
32	/* Only valid if allocated via nouveau_gem_new() and iff you hold a
33	 * gem reference to it! For debugging, use gem.filp != NULL to test
34	 * whether it is valid. */
35	struct drm_gem_object gem;
36
37	/* protect by the ttm reservation lock */
38	int pin_refcnt;
39
40	struct ttm_bo_kmap_obj dma_buf_vmap;
41};
42
43static inline struct nouveau_bo *
44nouveau_bo(struct ttm_buffer_object *bo)
45{
46	return container_of(bo, struct nouveau_bo, bo);
47}
48
49static inline int
50nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
51{
52	struct nouveau_bo *prev;
53
54	if (!pnvbo)
55		return -EINVAL;
56	prev = *pnvbo;
57
58	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
59	if (prev) {
60		struct ttm_buffer_object *bo = &prev->bo;
61
62		ttm_bo_unref(&bo);
63	}
64
65	return 0;
66}
67
68extern struct ttm_bo_driver nouveau_bo_driver;
69
70void nouveau_bo_move_init(struct nouveau_drm *);
71int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
72		    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
73		    struct reservation_object *robj,
74		    struct nouveau_bo **);
75int  nouveau_bo_pin(struct nouveau_bo *, u32 flags);
76int  nouveau_bo_unpin(struct nouveau_bo *);
77int  nouveau_bo_map(struct nouveau_bo *);
78void nouveau_bo_unmap(struct nouveau_bo *);
79void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
80u16  nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
81void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
82u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
83void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
84void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
85int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
86			 bool no_wait_gpu);
87
88struct nouveau_vma *
89nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
90
91int  nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
92			struct nouveau_vma *);
93void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
94
95/* TODO: submit equivalent to TTM generic API upstream? */
96static inline void __iomem *
97nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
98{
99	bool is_iomem;
100	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
101						&nvbo->kmap, &is_iomem);
102	WARN_ON_ONCE(ioptr && !is_iomem);
103	return ioptr;
104}
105
106#endif
107