[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / nouveau / nouveau_bo.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NOUVEAU_BO_H__
#define __NOUVEAU_BO_H__

#include <drm/drm_gem.h>

struct nouveau_channel;
struct nouveau_fence;
struct nvkm_vma;

struct nouveau_bo {
	struct ttm_buffer_object bo;
	struct ttm_placement placement;
	u32 valid_domains;
	struct ttm_place placements[3];
	struct ttm_place busy_placements[3];
	bool force_coherent;
	struct ttm_bo_kmap_obj kmap;
	struct list_head head;

	/* protected by ttm_bo_reserve() */
	struct drm_file *reserved_by;
	struct list_head entry;
	int pbbo_index;
	bool validate_mapped;

	struct list_head vma_list;

	unsigned contig:1;
	unsigned page:5;
	unsigned kind:8;
	unsigned comp:3;
	unsigned zeta:3;
	unsigned mode;

	struct nouveau_drm_tile *tile;

	/* Only valid if allocated via nouveau_gem_new() and iff you hold a
	 * gem reference to it! For debugging, use gem.filp != NULL to test
	 * whether it is valid. */
	struct drm_gem_object gem;

	/* protect by the ttm reservation lock */
	int pin_refcnt;

	struct ttm_bo_kmap_obj dma_buf_vmap;
};

static inline struct nouveau_bo *
nouveau_bo(struct ttm_buffer_object *bo)
{
	return container_of(bo, struct nouveau_bo, bo);
}

static inline int
nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
{
	struct nouveau_bo *prev;

	if (!pnvbo)
		return -EINVAL;
	prev = *pnvbo;

	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
	if (prev) {
		struct ttm_buffer_object *bo = &prev->bo;

		ttm_bo_unref(&bo);
	}

	return 0;
}

extern struct ttm_bo_driver nouveau_bo_driver;

void nouveau_bo_move_init(struct nouveau_drm *);
int  nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 flags,
		    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
		    struct reservation_object *robj,
		    struct nouveau_bo **);
int  nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
int  nouveau_bo_unpin(struct nouveau_bo *);
int  nouveau_bo_map(struct nouveau_bo *);
void nouveau_bo_unmap(struct nouveau_bo *);
void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
			 bool no_wait_gpu);
void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);

/* TODO: submit equivalent to TTM generic API upstream? */
static inline void __iomem *
nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
{
	bool is_iomem;
	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
						&nvbo->kmap, &is_iomem);
	WARN_ON_ONCE(ioptr && !is_iomem);
	return ioptr;
}

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
8be21a64 BS	2	#ifndef __NOUVEAU_BO_H__
	3	#define __NOUVEAU_BO_H__
	4
d9fc9413 DV	5	#include <drm/drm_gem.h>
d9fc9413 DV	6
8be21a64	7	struct nouveau_channel;
ebb945a9	8	struct nouveau_fence;
be83cd4e	9	struct nvkm_vma;
8be21a64	10
8be21a64 BS	11	struct nouveau_bo {
	12	struct ttm_buffer_object bo;
	13	struct ttm_placement placement;
	14	u32 valid_domains;
f1217ed0 CK	15	struct ttm_place placements[3];
f1217ed0 CK	16	struct ttm_place busy_placements[3];
c3a0c771	17	bool force_coherent;
8be21a64 BS	18	struct ttm_bo_kmap_obj kmap;
	19	struct list_head head;
	20
	21	/* protected by ttm_bo_reserve() */
	22	struct drm_file *reserved_by;
	23	struct list_head entry;
	24	int pbbo_index;
	25	bool validate_mapped;
	26
	27	struct list_head vma_list;
8be21a64	28
7760a2e3 BS	29	unsigned contig:1;
	30	unsigned page:5;
	31	unsigned kind:8;
	32	unsigned comp:3;
	33	unsigned zeta:3;
	34	unsigned mode;
	35
ebb945a9	36	struct nouveau_drm_tile *tile;
8be21a64	37
55fb74ad DH	38	/* Only valid if allocated via nouveau_gem_new() and iff you hold a
	39	* gem reference to it! For debugging, use gem.filp != NULL to test
	40	* whether it is valid. */
	41	struct drm_gem_object gem;
0ae6d7bc DV	42
0ae6d7bc DV	43	/* protect by the ttm reservation lock */
8be21a64 BS	44	int pin_refcnt;
	45
	46	struct ttm_bo_kmap_obj dma_buf_vmap;
8be21a64 BS	47	};
	48
	49	static inline struct nouveau_bo *
	50	nouveau_bo(struct ttm_buffer_object *bo)
	51	{
	52	return container_of(bo, struct nouveau_bo, bo);
	53	}
	54
	55	static inline int
	56	nouveau_bo_ref(struct nouveau_bo ref, struct nouveau_bo *pnvbo)
	57	{
	58	struct nouveau_bo *prev;
	59
	60	if (!pnvbo)
	61	return -EINVAL;
	62	prev = *pnvbo;
	63
	64	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
	65	if (prev) {
	66	struct ttm_buffer_object *bo = &prev->bo;
	67
	68	ttm_bo_unref(&bo);
	69	}
	70
	71	return 0;
	72	}
	73
	74	extern struct ttm_bo_driver nouveau_bo_driver;
	75
49981046	76	void nouveau_bo_move_init(struct nouveau_drm *);
4d8b3d34	77	int nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 flags,
8be21a64	78	u32 tile_mode, u32 tile_flags, struct sg_table *sg,
bb6178b0	79	struct reservation_object *robj,
8be21a64	80	struct nouveau_bo **);
ad76b3f7	81	int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
8be21a64 BS	82	int nouveau_bo_unpin(struct nouveau_bo *);
	83	int nouveau_bo_map(struct nouveau_bo *);
	84	void nouveau_bo_unmap(struct nouveau_bo *);
	85	void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
8be21a64 BS	86	void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
	87	u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
	88	void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
809e9447	89	void nouveau_bo_fence(struct nouveau_bo , struct nouveau_fence , bool exclusive);
8be21a64	90	int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
97a875cb	91	bool no_wait_gpu);
b22870ba AC	92	void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
b22870ba AC	93	void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
8be21a64	94
ebb945a9 BS	95	/* TODO: submit equivalent to TTM generic API upstream? */
	96	static inline void __iomem *
	97	nvbo_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
8be21a64	106	#endif