Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/accel/amdxdna/amdxdna_gem.h
51976 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
/*

3
 * Copyright (C) 2024, Advanced Micro Devices, Inc.

4
 */

5


6
#ifndef _AMDXDNA_GEM_H_

7
#define _AMDXDNA_GEM_H_

8


9
#include <linux/hmm.h>

10
#include "amdxdna_pci_drv.h"

11


12
struct amdxdna_umap {

13
	struct vm_area_struct		*vma;

14
	struct mmu_interval_notifier	notifier;

15
	struct hmm_range		range;

16
	struct work_struct		hmm_unreg_work;

17
	struct amdxdna_gem_obj		*abo;

18
	struct list_head		node;

19
	struct kref			refcnt;

20
	bool				invalid;

21
	bool				unmapped;

22
};

23


24
struct amdxdna_mem {

25
	u64				userptr;

26
	void				*kva;

27
	u64				dev_addr;

28
	size_t				size;

29
	struct page			**pages;

30
	u32				nr_pages;

31
	struct list_head		umap_list;

32
	bool				map_invalid;

33
};

34


35
struct amdxdna_gem_obj {

36
	struct drm_gem_shmem_object	base;

37
	struct amdxdna_client		*client;

38
	u8				type;

39
	bool				pinned;

40
	struct mutex			lock; /* Protects: pinned */

41
	struct amdxdna_mem		mem;

42


43
	/* Below members is uninitialized when needed */

44
	struct drm_mm			mm; /* For AMDXDNA_BO_DEV_HEAP */

45
	struct drm_mm_node		mm_node; /* For AMDXDNA_BO_DEV */

46
	u32				assigned_hwctx;

47
	struct dma_buf			*dma_buf;

48
	struct dma_buf_attachment	*attach;

49
};

50


51
#define to_gobj(obj)    (&(obj)->base.base)

52
#define is_import_bo(obj) ((obj)->attach)

53


54
static inline struct amdxdna_gem_obj *to_xdna_obj(struct drm_gem_object *gobj)

55
{

56
	return container_of(gobj, struct amdxdna_gem_obj, base.base);

57
}

58


59
struct amdxdna_gem_obj *amdxdna_gem_get_obj(struct amdxdna_client *client,

60
					    u32 bo_hdl, u8 bo_type);

61
static inline void amdxdna_gem_put_obj(struct amdxdna_gem_obj *abo)

62
{

63
	drm_gem_object_put(to_gobj(abo));

64
}

65


66
static inline u64 amdxdna_dev_bo_offset(struct amdxdna_gem_obj *abo)

67
{

68
	return abo->mem.dev_addr - abo->client->dev_heap->mem.dev_addr;

69
}

70


71
void amdxdna_umap_put(struct amdxdna_umap *mapp);

72


73
struct drm_gem_object *

74
amdxdna_gem_create_object_cb(struct drm_device *dev, size_t size);

75
struct drm_gem_object *

76
amdxdna_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);

77
struct amdxdna_gem_obj *

78
amdxdna_drm_alloc_dev_bo(struct drm_device *dev,

79
			 struct amdxdna_drm_create_bo *args,

80
			 struct drm_file *filp);

81


82
int amdxdna_gem_pin_nolock(struct amdxdna_gem_obj *abo);

83
int amdxdna_gem_pin(struct amdxdna_gem_obj *abo);

84
void amdxdna_gem_unpin(struct amdxdna_gem_obj *abo);

85


86
int amdxdna_drm_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);

87
int amdxdna_drm_get_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);

88
int amdxdna_drm_sync_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);

89


90
#endif /* _AMDXDNA_GEM_H_ */

91


92