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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2016 Intel Corporation
*/
#include "i915_file_private.h"
#include "mock_context.h"
#include "selftests/mock_drm.h"
#include "selftests/mock_gtt.h"
struct i915_gem_context *
mock_context(struct drm_i915_private *i915,
const char *name)
{
struct i915_gem_context *ctx;
struct i915_gem_engines *e;
struct intel_sseu null_sseu = {};
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
kref_init(&ctx->ref);
INIT_LIST_HEAD(&ctx->link);
ctx->i915 = i915;
INIT_WORK(&ctx->release_work, i915_gem_context_release_work);
mutex_init(&ctx->mutex);
spin_lock_init(&ctx->stale.lock);
INIT_LIST_HEAD(&ctx->stale.engines);
i915_gem_context_set_persistence(ctx);
if (name) {
struct i915_ppgtt *ppgtt;
strscpy(ctx->name, name, sizeof(ctx->name));
ppgtt = mock_ppgtt(i915, name);
if (!ppgtt)
goto err_free;
ctx->vm = &ppgtt->vm;
}
mutex_init(&ctx->engines_mutex);
e = default_engines(ctx, null_sseu);
if (IS_ERR(e))
goto err_vm;
RCU_INIT_POINTER(ctx->engines, e);
INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
mutex_init(&ctx->lut_mutex);
return ctx;
err_vm:
if (ctx->vm)
i915_vm_put(ctx->vm);
err_free:
kfree(ctx);
return NULL;
}
void mock_context_close(struct i915_gem_context *ctx)
{
context_close(ctx);
}
void mock_init_contexts(struct drm_i915_private *i915)
{
init_contexts(&i915->gem.contexts);
}
struct i915_gem_context *
live_context(struct drm_i915_private *i915, struct file *file)
{
struct drm_i915_file_private *fpriv = to_drm_file(file)->driver_priv;
struct i915_gem_proto_context *pc;
struct i915_gem_context *ctx;
int err;
u32 id;
pc = proto_context_create(fpriv, i915, 0);
if (IS_ERR(pc))
return ERR_CAST(pc);
ctx = i915_gem_create_context(i915, pc);
proto_context_close(i915, pc);
if (IS_ERR(ctx))
return ctx;
i915_gem_context_set_no_error_capture(ctx);
err = xa_alloc(&fpriv->context_xa, &id, NULL, xa_limit_32b, GFP_KERNEL);
if (err < 0)
goto err_ctx;
gem_context_register(ctx, fpriv, id);
return ctx;
err_ctx:
context_close(ctx);
return ERR_PTR(err);
}
struct i915_gem_context *
live_context_for_engine(struct intel_engine_cs *engine, struct file *file)
{
struct i915_gem_engines *engines;
struct i915_gem_context *ctx;
struct intel_sseu null_sseu = {};
struct intel_context *ce;
engines = alloc_engines(1);
if (!engines)
return ERR_PTR(-ENOMEM);
ctx = live_context(engine->i915, file);
if (IS_ERR(ctx)) {
__free_engines(engines, 0);
return ctx;
}
ce = intel_context_create(engine);
if (IS_ERR(ce)) {
__free_engines(engines, 0);
return ERR_CAST(ce);
}
intel_context_set_gem(ce, ctx, null_sseu);
engines->engines[0] = ce;
engines->num_engines = 1;
mutex_lock(&ctx->engines_mutex);
i915_gem_context_set_user_engines(ctx);
engines = rcu_replace_pointer(ctx->engines, engines, 1);
mutex_unlock(&ctx->engines_mutex);
engines_idle_release(ctx, engines);
return ctx;
}
struct i915_gem_context *
kernel_context(struct drm_i915_private *i915,
struct i915_address_space *vm)
{
struct i915_gem_context *ctx;
struct i915_gem_proto_context *pc;
pc = proto_context_create(NULL, i915, 0);
if (IS_ERR(pc))
return ERR_CAST(pc);
if (vm) {
if (pc->vm)
i915_vm_put(pc->vm);
pc->vm = i915_vm_get(vm);
}
ctx = i915_gem_create_context(i915, pc);
proto_context_close(i915, pc);
if (IS_ERR(ctx))
return ctx;
i915_gem_context_clear_bannable(ctx);
i915_gem_context_set_persistence(ctx);
i915_gem_context_set_no_error_capture(ctx);
return ctx;
}
void kernel_context_close(struct i915_gem_context *ctx)
{
context_close(ctx);
}
|
