1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* Copyright 2020 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Christian König
*/
#include <drm/ttm/ttm_resource.h>
#include <drm/ttm/ttm_bo_driver.h>
int ttm_resource_alloc(struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource *res)
{
struct ttm_resource_manager *man =
ttm_manager_type(bo->bdev, res->mem_type);
res->mm_node = NULL;
if (!man->func || !man->func->alloc)
return 0;
return man->func->alloc(man, bo, place, res);
}
void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource *res)
{
struct ttm_resource_manager *man =
ttm_manager_type(bo->bdev, res->mem_type);
if (man->func && man->func->free)
man->func->free(man, res);
res->mm_node = NULL;
res->mem_type = TTM_PL_SYSTEM;
}
EXPORT_SYMBOL(ttm_resource_free);
/**
* ttm_resource_manager_init
*
* @man: memory manager object to init
* @p_size: size managed area in pages.
*
* Initialise core parts of a manager object.
*/
void ttm_resource_manager_init(struct ttm_resource_manager *man,
unsigned long p_size)
{
unsigned i;
spin_lock_init(&man->move_lock);
man->size = p_size;
for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
INIT_LIST_HEAD(&man->lru[i]);
man->move = NULL;
}
EXPORT_SYMBOL(ttm_resource_manager_init);
/*
* ttm_resource_manager_evict_all
*
* @bdev - device to use
* @man - manager to use
*
* Evict all the objects out of a memory manager until it is empty.
* Part of memory manager cleanup sequence.
*/
int ttm_resource_manager_evict_all(struct ttm_bo_device *bdev,
struct ttm_resource_manager *man)
{
struct ttm_operation_ctx ctx = {
.interruptible = false,
.no_wait_gpu = false,
.force_alloc = true
};
struct ttm_bo_global *glob = &ttm_bo_glob;
struct dma_fence *fence;
int ret;
unsigned i;
/*
* Can't use standard list traversal since we're unlocking.
*/
spin_lock(&glob->lru_lock);
for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
while (!list_empty(&man->lru[i])) {
spin_unlock(&glob->lru_lock);
ret = ttm_mem_evict_first(bdev, man, NULL, &ctx,
NULL);
if (ret)
return ret;
spin_lock(&glob->lru_lock);
}
}
spin_unlock(&glob->lru_lock);
spin_lock(&man->move_lock);
fence = dma_fence_get(man->move);
spin_unlock(&man->move_lock);
if (fence) {
ret = dma_fence_wait(fence, false);
dma_fence_put(fence);
if (ret)
return ret;
}
return 0;
}
EXPORT_SYMBOL(ttm_resource_manager_evict_all);
/**
* ttm_resource_manager_debug
*
* @man: manager type to dump.
* @p: printer to use for debug.
*/
void ttm_resource_manager_debug(struct ttm_resource_manager *man,
struct drm_printer *p)
{
drm_printf(p, " use_type: %d\n", man->use_type);
drm_printf(p, " use_tt: %d\n", man->use_tt);
drm_printf(p, " size: %llu\n", man->size);
if (man->func && man->func->debug)
(*man->func->debug)(man, p);
}
EXPORT_SYMBOL(ttm_resource_manager_debug);
|
