1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2015-2018 Etnaviv Project
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #ifndef __ETNAVIV_GEM_H__
7*4882a593Smuzhiyun #define __ETNAVIV_GEM_H__
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/dma-resv.h>
10*4882a593Smuzhiyun #include "etnaviv_cmdbuf.h"
11*4882a593Smuzhiyun #include "etnaviv_drv.h"
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun struct dma_fence;
14*4882a593Smuzhiyun struct etnaviv_gem_ops;
15*4882a593Smuzhiyun struct etnaviv_gem_object;
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun struct etnaviv_gem_userptr {
18*4882a593Smuzhiyun uintptr_t ptr;
19*4882a593Smuzhiyun struct mm_struct *mm;
20*4882a593Smuzhiyun bool ro;
21*4882a593Smuzhiyun };
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun struct etnaviv_vram_mapping {
24*4882a593Smuzhiyun struct list_head obj_node;
25*4882a593Smuzhiyun struct list_head scan_node;
26*4882a593Smuzhiyun struct list_head mmu_node;
27*4882a593Smuzhiyun struct etnaviv_gem_object *object;
28*4882a593Smuzhiyun struct etnaviv_iommu_context *context;
29*4882a593Smuzhiyun struct drm_mm_node vram_node;
30*4882a593Smuzhiyun unsigned int use;
31*4882a593Smuzhiyun u32 iova;
32*4882a593Smuzhiyun };
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun struct etnaviv_gem_object {
35*4882a593Smuzhiyun struct drm_gem_object base;
36*4882a593Smuzhiyun const struct etnaviv_gem_ops *ops;
37*4882a593Smuzhiyun struct mutex lock;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun u32 flags;
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun struct list_head gem_node;
42*4882a593Smuzhiyun struct etnaviv_gpu *gpu; /* non-null if active */
43*4882a593Smuzhiyun atomic_t gpu_active;
44*4882a593Smuzhiyun u32 access;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun struct page **pages;
47*4882a593Smuzhiyun struct sg_table *sgt;
48*4882a593Smuzhiyun void *vaddr;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun struct list_head vram_list;
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun /* cache maintenance */
53*4882a593Smuzhiyun u32 last_cpu_prep_op;
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun struct etnaviv_gem_userptr userptr;
56*4882a593Smuzhiyun };
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun static inline
to_etnaviv_bo(struct drm_gem_object * obj)59*4882a593Smuzhiyun struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun return container_of(obj, struct etnaviv_gem_object, base);
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun struct etnaviv_gem_ops {
65*4882a593Smuzhiyun int (*get_pages)(struct etnaviv_gem_object *);
66*4882a593Smuzhiyun void (*release)(struct etnaviv_gem_object *);
67*4882a593Smuzhiyun void *(*vmap)(struct etnaviv_gem_object *);
68*4882a593Smuzhiyun int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
69*4882a593Smuzhiyun };
70*4882a593Smuzhiyun
is_active(struct etnaviv_gem_object * etnaviv_obj)71*4882a593Smuzhiyun static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun return atomic_read(&etnaviv_obj->gpu_active) != 0;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun #define MAX_CMDS 4
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun struct etnaviv_gem_submit_bo {
79*4882a593Smuzhiyun u32 flags;
80*4882a593Smuzhiyun u64 va;
81*4882a593Smuzhiyun struct etnaviv_gem_object *obj;
82*4882a593Smuzhiyun struct etnaviv_vram_mapping *mapping;
83*4882a593Smuzhiyun struct dma_fence *excl;
84*4882a593Smuzhiyun unsigned int nr_shared;
85*4882a593Smuzhiyun struct dma_fence **shared;
86*4882a593Smuzhiyun };
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
89*4882a593Smuzhiyun * associated with the cmdstream submission for synchronization (and
90*4882a593Smuzhiyun * make it easier to unwind when things go wrong, etc).
91*4882a593Smuzhiyun */
92*4882a593Smuzhiyun struct etnaviv_gem_submit {
93*4882a593Smuzhiyun struct drm_sched_job sched_job;
94*4882a593Smuzhiyun struct kref refcount;
95*4882a593Smuzhiyun struct etnaviv_file_private *ctx;
96*4882a593Smuzhiyun struct etnaviv_gpu *gpu;
97*4882a593Smuzhiyun struct etnaviv_iommu_context *mmu_context, *prev_mmu_context;
98*4882a593Smuzhiyun struct dma_fence *out_fence, *in_fence;
99*4882a593Smuzhiyun int out_fence_id;
100*4882a593Smuzhiyun struct list_head node; /* GPU active submit list */
101*4882a593Smuzhiyun struct etnaviv_cmdbuf cmdbuf;
102*4882a593Smuzhiyun bool runtime_resumed;
103*4882a593Smuzhiyun u32 exec_state;
104*4882a593Smuzhiyun u32 flags;
105*4882a593Smuzhiyun unsigned int nr_pmrs;
106*4882a593Smuzhiyun struct etnaviv_perfmon_request *pmrs;
107*4882a593Smuzhiyun unsigned int nr_bos;
108*4882a593Smuzhiyun struct etnaviv_gem_submit_bo bos[];
109*4882a593Smuzhiyun /* No new members here, the previous one is variable-length! */
110*4882a593Smuzhiyun };
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
113*4882a593Smuzhiyun
114*4882a593Smuzhiyun int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
115*4882a593Smuzhiyun struct drm_etnaviv_timespec *timeout);
116*4882a593Smuzhiyun int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
117*4882a593Smuzhiyun const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res);
118*4882a593Smuzhiyun void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
119*4882a593Smuzhiyun struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
120*4882a593Smuzhiyun void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
121*4882a593Smuzhiyun
122*4882a593Smuzhiyun struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
123*4882a593Smuzhiyun struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
124*4882a593Smuzhiyun u64 va);
125*4882a593Smuzhiyun void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
126*4882a593Smuzhiyun
127*4882a593Smuzhiyun #endif /* __ETNAVIV_GEM_H__ */
128