xref: /linux/drivers/accel/ivpu/ivpu_gem.h (revision 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2020-2023 Intel Corporation
4  */
5 #ifndef __IVPU_GEM_H__
6 #define __IVPU_GEM_H__
7 
8 #include <drm/drm_gem.h>
9 #include <drm/drm_gem_shmem_helper.h>
10 #include <drm/drm_mm.h>
11 
12 struct ivpu_file_priv;
13 
14 struct ivpu_bo {
15 	struct drm_gem_shmem_object base;
16 	struct ivpu_mmu_context *ctx;
17 	struct list_head bo_list_node;
18 	struct drm_mm_node mm_node;
19 
20 	struct mutex lock; /* Protects: ctx, mmu_mapped, vpu_addr */
21 	u64 vpu_addr;
22 	u32 flags;
23 	u32 job_status; /* Valid only for command buffer */
24 	bool mmu_mapped;
25 };
26 
27 int ivpu_bo_pin(struct ivpu_bo *bo);
28 void ivpu_bo_unbind_all_bos_from_context(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);
29 
30 struct drm_gem_object *ivpu_gem_create_object(struct drm_device *dev, size_t size);
31 struct ivpu_bo *ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags);
32 void ivpu_bo_free_internal(struct ivpu_bo *bo);
33 
34 int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
35 int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
36 int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
37 
38 void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p);
39 void ivpu_bo_list_print(struct drm_device *dev);
40 
41 static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj)
42 {
43 	return container_of(obj, struct ivpu_bo, base.base);
44 }
45 
46 static inline void *ivpu_bo_vaddr(struct ivpu_bo *bo)
47 {
48 	return bo->base.vaddr;
49 }
50 
51 static inline size_t ivpu_bo_size(struct ivpu_bo *bo)
52 {
53 	return bo->base.base.size;
54 }
55 
56 static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)
57 {
58 	return bo->flags & DRM_IVPU_BO_CACHE_MASK;
59 }
60 
61 static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)
62 {
63 	return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;
64 }
65 
66 static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo)
67 {
68 	return to_ivpu_device(bo->base.base.dev);
69 }
70 
71 static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)
72 {
73 	if (vpu_addr < bo->vpu_addr)
74 		return NULL;
75 
76 	if (vpu_addr >= (bo->vpu_addr + ivpu_bo_size(bo)))
77 		return NULL;
78 
79 	return ivpu_bo_vaddr(bo) + (vpu_addr - bo->vpu_addr);
80 }
81 
82 static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr)
83 {
84 	if (cpu_addr < ivpu_bo_vaddr(bo))
85 		return 0;
86 
87 	if (cpu_addr >= (ivpu_bo_vaddr(bo) + ivpu_bo_size(bo)))
88 		return 0;
89 
90 	return bo->vpu_addr + (cpu_addr - ivpu_bo_vaddr(bo));
91 }
92 
93 #endif /* __IVPU_GEM_H__ */
94