2 * Copyright (C) 2015 Etnaviv Project
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published by
6 * the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef __ETNAVIV_GEM_H__
18 #define __ETNAVIV_GEM_H__
20 #include <linux/reservation.h>
21 #include "etnaviv_cmdbuf.h"
22 #include "etnaviv_drv.h"
25 struct etnaviv_gem_ops;
26 struct etnaviv_gem_object;
28 struct etnaviv_gem_userptr {
34 struct etnaviv_vram_mapping {
35 struct list_head obj_node;
36 struct list_head scan_node;
37 struct list_head mmu_node;
38 struct etnaviv_gem_object *object;
39 struct etnaviv_iommu *mmu;
40 struct drm_mm_node vram_node;
45 struct etnaviv_gem_object {
46 struct drm_gem_object base;
47 const struct etnaviv_gem_ops *ops;
52 struct list_head gem_node;
53 struct etnaviv_gpu *gpu; /* non-null if active */
61 /* normally (resv == &_resv) except for imported bo's */
62 struct reservation_object *resv;
63 struct reservation_object _resv;
65 struct list_head vram_list;
67 /* cache maintenance */
70 struct etnaviv_gem_userptr userptr;
74 struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
76 return container_of(obj, struct etnaviv_gem_object, base);
79 struct etnaviv_gem_ops {
80 int (*get_pages)(struct etnaviv_gem_object *);
81 void (*release)(struct etnaviv_gem_object *);
82 void *(*vmap)(struct etnaviv_gem_object *);
83 int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
86 static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
88 return atomic_read(&etnaviv_obj->gpu_active) != 0;
93 struct etnaviv_gem_submit_bo {
95 struct etnaviv_gem_object *obj;
96 struct etnaviv_vram_mapping *mapping;
99 /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
100 * associated with the cmdstream submission for synchronization (and
101 * make it easier to unwind when things go wrong, etc).
103 struct etnaviv_gem_submit {
104 struct kref refcount;
105 struct etnaviv_gpu *gpu;
106 struct dma_fence *out_fence, *in_fence;
107 struct list_head node; /* GPU active submit list */
108 struct etnaviv_cmdbuf cmdbuf;
111 unsigned int nr_pmrs;
112 struct etnaviv_perfmon_request *pmrs;
114 struct etnaviv_gem_submit_bo bos[0];
115 /* No new members here, the previous one is variable-length! */
118 void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
120 int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
121 struct timespec *timeout);
122 int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
123 struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
124 struct etnaviv_gem_object **res);
125 void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
126 struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
127 void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
129 struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
130 struct drm_gem_object *obj, struct etnaviv_gpu *gpu);
131 void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping);
132 void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
134 #endif /* __ETNAVIV_GEM_H__ */