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_gem.h" 15 #include "i915_scheduler.h" 16 #include "intel_device_info.h" 17 18 struct drm_device; 19 struct drm_file; 20 21 static inline bool i915_gem_context_is_closed(const struct i915_gem_context *ctx) 22 { 23 return test_bit(CONTEXT_CLOSED, &ctx->flags); 24 } 25 26 static inline void i915_gem_context_set_closed(struct i915_gem_context *ctx) 27 { 28 GEM_BUG_ON(i915_gem_context_is_closed(ctx)); 29 set_bit(CONTEXT_CLOSED, &ctx->flags); 30 } 31 32 static inline bool i915_gem_context_no_error_capture(const struct i915_gem_context *ctx) 33 { 34 return test_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); 35 } 36 37 static inline void i915_gem_context_set_no_error_capture(struct i915_gem_context *ctx) 38 { 39 set_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); 40 } 41 42 static inline void i915_gem_context_clear_no_error_capture(struct i915_gem_context *ctx) 43 { 44 clear_bit(UCONTEXT_NO_ERROR_CAPTURE, &ctx->user_flags); 45 } 46 47 static inline bool i915_gem_context_is_bannable(const struct i915_gem_context *ctx) 48 { 49 return test_bit(UCONTEXT_BANNABLE, &ctx->user_flags); 50 } 51 52 static inline void i915_gem_context_set_bannable(struct i915_gem_context *ctx) 53 { 54 set_bit(UCONTEXT_BANNABLE, &ctx->user_flags); 55 } 56 57 static inline void i915_gem_context_clear_bannable(struct i915_gem_context *ctx) 58 { 59 clear_bit(UCONTEXT_BANNABLE, &ctx->user_flags); 60 } 61 62 static inline bool i915_gem_context_is_recoverable(const struct i915_gem_context *ctx) 63 { 64 return test_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); 65 } 66 67 static inline void i915_gem_context_set_recoverable(struct i915_gem_context *ctx) 68 { 69 set_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); 70 } 71 72 static inline void i915_gem_context_clear_recoverable(struct i915_gem_context *ctx) 73 { 74 clear_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); 75 } 76 77 static inline bool i915_gem_context_is_banned(const struct i915_gem_context *ctx) 78 { 79 return test_bit(CONTEXT_BANNED, &ctx->flags); 80 } 81 82 static inline void i915_gem_context_set_banned(struct i915_gem_context *ctx) 83 { 84 set_bit(CONTEXT_BANNED, &ctx->flags); 85 } 86 87 static inline bool i915_gem_context_force_single_submission(const struct i915_gem_context *ctx) 88 { 89 return test_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ctx->flags); 90 } 91 92 static inline void i915_gem_context_set_force_single_submission(struct i915_gem_context *ctx) 93 { 94 __set_bit(CONTEXT_FORCE_SINGLE_SUBMISSION, &ctx->flags); 95 } 96 97 static inline bool 98 i915_gem_context_user_engines(const struct i915_gem_context *ctx) 99 { 100 return test_bit(CONTEXT_USER_ENGINES, &ctx->flags); 101 } 102 103 static inline void 104 i915_gem_context_set_user_engines(struct i915_gem_context *ctx) 105 { 106 set_bit(CONTEXT_USER_ENGINES, &ctx->flags); 107 } 108 109 static inline void 110 i915_gem_context_clear_user_engines(struct i915_gem_context *ctx) 111 { 112 clear_bit(CONTEXT_USER_ENGINES, &ctx->flags); 113 } 114 115 static inline bool i915_gem_context_is_kernel(struct i915_gem_context *ctx) 116 { 117 return !ctx->file_priv; 118 } 119 120 /* i915_gem_context.c */ 121 int __must_check i915_gem_contexts_init(struct drm_i915_private *dev_priv); 122 void i915_gem_contexts_fini(struct drm_i915_private *dev_priv); 123 124 int i915_gem_context_open(struct drm_i915_private *i915, 125 struct drm_file *file); 126 void i915_gem_context_close(struct drm_file *file); 127 128 void i915_gem_context_release(struct kref *ctx_ref); 129 130 int i915_gem_vm_create_ioctl(struct drm_device *dev, void *data, 131 struct drm_file *file); 132 int i915_gem_vm_destroy_ioctl(struct drm_device *dev, void *data, 133 struct drm_file *file); 134 135 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, 136 struct drm_file *file); 137 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, 138 struct drm_file *file); 139 int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, 140 struct drm_file *file_priv); 141 int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data, 142 struct drm_file *file_priv); 143 int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data, 144 struct drm_file *file); 145 146 struct i915_gem_context * 147 i915_gem_context_create_kernel(struct drm_i915_private *i915, int prio); 148 149 static inline struct i915_gem_context * 150 i915_gem_context_get(struct i915_gem_context *ctx) 151 { 152 kref_get(&ctx->ref); 153 return ctx; 154 } 155 156 static inline void i915_gem_context_put(struct i915_gem_context *ctx) 157 { 158 kref_put(&ctx->ref, i915_gem_context_release); 159 } 160 161 static inline struct i915_gem_engines * 162 i915_gem_context_engines(struct i915_gem_context *ctx) 163 { 164 return rcu_dereference_protected(ctx->engines, 165 lockdep_is_held(&ctx->engines_mutex)); 166 } 167 168 static inline struct i915_gem_engines * 169 i915_gem_context_lock_engines(struct i915_gem_context *ctx) 170 __acquires(&ctx->engines_mutex) 171 { 172 mutex_lock(&ctx->engines_mutex); 173 return i915_gem_context_engines(ctx); 174 } 175 176 static inline void 177 i915_gem_context_unlock_engines(struct i915_gem_context *ctx) 178 __releases(&ctx->engines_mutex) 179 { 180 mutex_unlock(&ctx->engines_mutex); 181 } 182 183 static inline struct intel_context * 184 i915_gem_context_get_engine(struct i915_gem_context *ctx, unsigned int idx) 185 { 186 struct intel_context *ce = ERR_PTR(-EINVAL); 187 188 rcu_read_lock(); { 189 struct i915_gem_engines *e = rcu_dereference(ctx->engines); 190 if (likely(idx < e->num_engines && e->engines[idx])) 191 ce = intel_context_get(e->engines[idx]); 192 } rcu_read_unlock(); 193 194 return ce; 195 } 196 197 static inline void 198 i915_gem_engines_iter_init(struct i915_gem_engines_iter *it, 199 struct i915_gem_engines *engines) 200 { 201 GEM_BUG_ON(!engines); 202 it->engines = engines; 203 it->idx = 0; 204 } 205 206 struct intel_context * 207 i915_gem_engines_iter_next(struct i915_gem_engines_iter *it); 208 209 #define for_each_gem_engine(ce, engines, it) \ 210 for (i915_gem_engines_iter_init(&(it), (engines)); \ 211 ((ce) = i915_gem_engines_iter_next(&(it)));) 212 213 struct i915_lut_handle *i915_lut_handle_alloc(void); 214 void i915_lut_handle_free(struct i915_lut_handle *lut); 215 216 #endif /* !__I915_GEM_CONTEXT_H__ */ 217