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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * SPDX-License-Identifier: MIT
3 *
4 * Copyright © 2016 Intel Corporation
5 */
6
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/* i915_gem_context.c */
112void i915_gem_init__contexts(struct drm_i915_private *i915);
113
114int i915_gem_context_open(struct drm_i915_private *i915,
115 struct drm_file *file);
116void i915_gem_context_close(struct drm_file *file);
117
118void i915_gem_context_release(struct kref *ctx_ref);
119
120int i915_gem_vm_create_ioctl(struct drm_device *dev, void *data,
121 struct drm_file *file);
122int i915_gem_vm_destroy_ioctl(struct drm_device *dev, void *data,
123 struct drm_file *file);
124
125int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
126 struct drm_file *file);
127int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
128 struct drm_file *file);
129int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
130 struct drm_file *file_priv);
131int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
132 struct drm_file *file_priv);
133int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
134 struct drm_file *file);
135
136static inline struct i915_gem_context *
137i915_gem_context_get(struct i915_gem_context *ctx)
138{
139 kref_get(&ctx->ref);
140 return ctx;
141}
142
143static inline void i915_gem_context_put(struct i915_gem_context *ctx)
144{
145 kref_put(&ctx->ref, i915_gem_context_release);
146}
147
148static inline struct i915_address_space *
149i915_gem_context_vm(struct i915_gem_context *ctx)
150{
151 return rcu_dereference_protected(ctx->vm, lockdep_is_held(&ctx->mutex));
152}
153
154static inline struct i915_address_space *
155i915_gem_context_get_vm_rcu(struct i915_gem_context *ctx)
156{
157 struct i915_address_space *vm;
158
159 rcu_read_lock();
160 vm = rcu_dereference(ctx->vm);
161 if (!vm)
162 vm = &ctx->i915->ggtt.vm;
163 vm = i915_vm_get(vm);
164 rcu_read_unlock();
165
166 return vm;
167}
168
169static inline struct i915_gem_engines *
170i915_gem_context_engines(struct i915_gem_context *ctx)
171{
172 return rcu_dereference_protected(ctx->engines,
173 lockdep_is_held(&ctx->engines_mutex));
174}
175
176static inline struct i915_gem_engines *
177i915_gem_context_lock_engines(struct i915_gem_context *ctx)
178 __acquires(&ctx->engines_mutex)
179{
180 mutex_lock(&ctx->engines_mutex);
181 return i915_gem_context_engines(ctx);
182}
183
184static inline void
185i915_gem_context_unlock_engines(struct i915_gem_context *ctx)
186 __releases(&ctx->engines_mutex)
187{
188 mutex_unlock(&ctx->engines_mutex);
189}
190
191static inline struct intel_context *
192i915_gem_context_get_engine(struct i915_gem_context *ctx, unsigned int idx)
193{
194 struct intel_context *ce;
195
196 rcu_read_lock(); {
197 struct i915_gem_engines *e = rcu_dereference(ctx->engines);
198 if (unlikely(!e)) /* context was closed! */
199 ce = ERR_PTR(-ENOENT);
200 else if (likely(idx < e->num_engines && e->engines[idx]))
201 ce = intel_context_get(e->engines[idx]);
202 else
203 ce = ERR_PTR(-EINVAL);
204 } rcu_read_unlock();
205
206 return ce;
207}
208
209static inline void
210i915_gem_engines_iter_init(struct i915_gem_engines_iter *it,
211 struct i915_gem_engines *engines)
212{
213 it->engines = engines;
214 it->idx = 0;
215}
216
217struct intel_context *
218i915_gem_engines_iter_next(struct i915_gem_engines_iter *it);
219
220#define for_each_gem_engine(ce, engines, it) \
221 for (i915_gem_engines_iter_init(&(it), (engines)); \
222 ((ce) = i915_gem_engines_iter_next(&(it)));)
223
224struct i915_lut_handle *i915_lut_handle_alloc(void);
225void i915_lut_handle_free(struct i915_lut_handle *lut);
226
227int i915_gem_user_to_context_sseu(struct intel_gt *gt,
228 const struct drm_i915_gem_context_param_sseu *user,
229 struct intel_sseu *context);
230
231#endif /* !__I915_GEM_CONTEXT_H__ */