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 nvkm_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	bool force_coherent;
17	struct ttm_bo_kmap_obj kmap;
18	struct list_head head;
19
20	/* protected by ttm_bo_reserve() */
21	struct drm_file *reserved_by;
22	struct list_head entry;
23	int pbbo_index;
24	bool validate_mapped;
25
26	struct list_head vma_list;
27	unsigned page_shift;
28
29	u32 tile_mode;
30	u32 tile_flags;
31	struct nouveau_drm_tile *tile;
32
33	/* Only valid if allocated via nouveau_gem_new() and iff you hold a
34	 * gem reference to it! For debugging, use gem.filp != NULL to test
35	 * whether it is valid. */
36	struct drm_gem_object gem;
37
38	/* protect by the ttm reservation lock */
39	int pin_refcnt;
40
41	struct ttm_bo_kmap_obj dma_buf_vmap;
42};
43
44static inline struct nouveau_bo *
45nouveau_bo(struct ttm_buffer_object *bo)
46{
47	return container_of(bo, struct nouveau_bo, bo);
48}
49
50static inline int
51nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
52{
53	struct nouveau_bo *prev;
54
55	if (!pnvbo)
56		return -EINVAL;
57	prev = *pnvbo;
58
59	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
60	if (prev) {
61		struct ttm_buffer_object *bo = &prev->bo;
62
63		ttm_bo_unref(&bo);
64	}
65
66	return 0;
67}
68
69extern struct ttm_bo_driver nouveau_bo_driver;
70
71void nouveau_bo_move_init(struct nouveau_drm *);
72int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
73		    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
74		    struct reservation_object *robj,
75		    struct nouveau_bo **);
76int  nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
77int  nouveau_bo_unpin(struct nouveau_bo *);
78int  nouveau_bo_map(struct nouveau_bo *);
79void nouveau_bo_unmap(struct nouveau_bo *);
80void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
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);
87void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
88void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
89
90struct nvkm_vma *
91nouveau_bo_vma_find(struct nouveau_bo *, struct nvkm_vm *);
92
93int  nouveau_bo_vma_add(struct nouveau_bo *, struct nvkm_vm *,
94			struct nvkm_vma *);
95void nouveau_bo_vma_del(struct nouveau_bo *, struct nvkm_vma *);
96
97/* TODO: submit equivalent to TTM generic API upstream? */
98static inline void __iomem *
99nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
100{
101	bool is_iomem;
102	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
103						&nvbo->kmap, &is_iomem);
104	WARN_ON_ONCE(ioptr && !is_iomem);
105	return ioptr;
106}
107
108#endif
109