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7#ifndef __I915_GEM_CONTEXT_H__
8#define __I915_GEM_CONTEXT_H__
9
10#include "i915_gem_context_types.h"
11
12#include "gt/intel_context.h"
13
14#include "i915_drv.h"
15#include "i915_gem.h"
16#include "i915_scheduler.h"
17#include "intel_device_info.h"
18
19struct drm_device;
20struct drm_file;
21
22static inline bool i915_gem_context_is_closed(const struct i915_gem_context *ctx)
23{
24 return test_bit(CONTEXT_CLOSED, &ctx->flags);
25}
26
27static inline void i915_gem_context_set_closed(struct i915_gem_context *ctx)
28{
29 GEM_BUG_ON(i915_gem_context_is_closed(ctx));
30 set_bit(CONTEXT_CLOSED, &ctx->flags);
31}
32
33static inline bool i915_gem_context_no_error_capture(const struct i915_gem_context *ctx)
34{
35 return test_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags);
36}
37
38static inline void i915_gem_context_set_no_error_capture(struct i915_gem_context *ctx)
39{
40 set_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags);
41}
42
43static inline void i915_gem_context_clear_no_error_capture(struct i915_gem_context *ctx)
44{
45 clear_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags);
46}
47
48static inline bool i915_gem_context_is_bannable(const struct i915_gem_context *ctx)
49{
50 return test_bit(UCONTEXT_BANNABLE, &ctx->user_flags);
51}
52
53static inline void i915_gem_context_set_bannable(struct i915_gem_context *ctx)
54{
55 set_bit(UCONTEXT_BANNABLE, &ctx->user_flags);
56}
57
58static inline void i915_gem_context_clear_bannable(struct i915_gem_context *ctx)
59{
60 clear_bit(UCONTEXT_BANNABLE, &ctx->user_flags);
61}
62
63static inline bool i915_gem_context_is_recoverable(const struct i915_gem_context *ctx)
64{
65 return test_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags);
66}
67
68static inline void i915_gem_context_set_recoverable(struct i915_gem_context *ctx)
69{
70 set_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags);
71}
72
73static inline void i915_gem_context_clear_recoverable(struct i915_gem_context *ctx)
74{
75 clear_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags);
76}
77
78static inline bool i915_gem_context_is_persistent(const struct i915_gem_context *ctx)
79{
80 return test_bit(UCONTEXT_PERSISTENCE, &ctx->user_flags);
81}
82
83static inline void i915_gem_context_set_persistence(struct i915_gem_context *ctx)
84{
85 set_bit(UCONTEXT_PERSISTENCE, &ctx->user_flags);
86}
87
88static inline void i915_gem_context_clear_persistence(struct i915_gem_context *ctx)
89{
90 clear_bit(UCONTEXT_PERSISTENCE, &ctx->user_flags);
91}
92
93static inline bool
94i915_gem_context_user_engines(const struct i915_gem_context *ctx)
95{
96 return test_bit(CONTEXT_USER_ENGINES, &ctx->flags);
97}
98
99static inline void
100i915_gem_context_set_user_engines(struct i915_gem_context *ctx)
101{
102 set_bit(CONTEXT_USER_ENGINES, &ctx->flags);
103}
104
105static inline void
106i915_gem_context_clear_user_engines(struct i915_gem_context *ctx)
107{
108 clear_bit(CONTEXT_USER_ENGINES, &ctx->flags);
109}
110
111
112void i915_gem_init__contexts(struct drm_i915_private *i915);
113void i915_gem_driver_release__contexts(struct drm_i915_private *i915);
114
115int i915_gem_context_open(struct drm_i915_private *i915,
116 struct drm_file *file);
117void i915_gem_context_close(struct drm_file *file);
118
119void i915_gem_context_release(struct kref *ctx_ref);
120
121int i915_gem_vm_create_ioctl(struct drm_device *dev, void *data,
122 struct drm_file *file);
123int i915_gem_vm_destroy_ioctl(struct drm_device *dev, void *data,
124 struct drm_file *file);
125
126int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
127 struct drm_file *file);
128int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
129 struct drm_file *file);
130int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
131 struct drm_file *file_priv);
132int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
133 struct drm_file *file_priv);
134int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
135 struct drm_file *file);
136
137static inline struct i915_gem_context *
138i915_gem_context_get(struct i915_gem_context *ctx)
139{
140 kref_get(&ctx->ref);
141 return ctx;
142}
143
144static inline void i915_gem_context_put(struct i915_gem_context *ctx)
145{
146 kref_put(&ctx->ref, i915_gem_context_release);
147}
148
149static inline struct i915_address_space *
150i915_gem_context_vm(struct i915_gem_context *ctx)
151{
152 return rcu_dereference_protected(ctx->vm, lockdep_is_held(&ctx->mutex));
153}
154
155static inline struct i915_address_space *
156i915_gem_context_get_vm_rcu(struct i915_gem_context *ctx)
157{
158 struct i915_address_space *vm;
159
160 rcu_read_lock();
161 vm = rcu_dereference(ctx->vm);
162 if (!vm)
163 vm = &ctx->i915->ggtt.vm;
164 vm = i915_vm_get(vm);
165 rcu_read_unlock();
166
167 return vm;
168}
169
170static inline struct i915_gem_engines *
171i915_gem_context_engines(struct i915_gem_context *ctx)
172{
173 return rcu_dereference_protected(ctx->engines,
174 lockdep_is_held(&ctx->engines_mutex));
175}
176
177static inline struct i915_gem_engines *
178i915_gem_context_lock_engines(struct i915_gem_context *ctx)
179 __acquires(&ctx->engines_mutex)
180{
181 mutex_lock(&ctx->engines_mutex);
182 return i915_gem_context_engines(ctx);
183}
184
185static inline void
186i915_gem_context_unlock_engines(struct i915_gem_context *ctx)
187 __releases(&ctx->engines_mutex)
188{
189 mutex_unlock(&ctx->engines_mutex);
190}
191
192static inline struct intel_context *
193i915_gem_context_get_engine(struct i915_gem_context *ctx, unsigned int idx)
194{
195 struct intel_context *ce;
196
197 rcu_read_lock(); {
198 struct i915_gem_engines *e = rcu_dereference(ctx->engines);
199 if (unlikely(!e))
200 ce = ERR_PTR(-ENOENT);
201 else if (likely(idx < e->num_engines && e->engines[idx]))
202 ce = intel_context_get(e->engines[idx]);
203 else
204 ce = ERR_PTR(-EINVAL);
205 } rcu_read_unlock();
206
207 return ce;
208}
209
210static inline void
211i915_gem_engines_iter_init(struct i915_gem_engines_iter *it,
212 struct i915_gem_engines *engines)
213{
214 it->engines = engines;
215 it->idx = 0;
216}
217
218struct intel_context *
219i915_gem_engines_iter_next(struct i915_gem_engines_iter *it);
220
221#define for_each_gem_engine(ce, engines, it) \
222 for (i915_gem_engines_iter_init(&(it), (engines)); \
223 ((ce) = i915_gem_engines_iter_next(&(it)));)
224
225struct i915_lut_handle *i915_lut_handle_alloc(void);
226void i915_lut_handle_free(struct i915_lut_handle *lut);
227
228int i915_gem_user_to_context_sseu(struct intel_gt *gt,
229 const struct drm_i915_gem_context_param_sseu *user,
230 struct intel_sseu *context);
231
232#endif
233
