1 /* $NetBSD: nouveau_nvkm_core_object.c,v 1.11 2021/12/19 11:07:11 riastradh Exp $ */ 2 3 /* 4 * Copyright 2012 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Ben Skeggs 25 */ 26 #include <sys/cdefs.h> 27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_core_object.c,v 1.11 2021/12/19 11:07:11 riastradh Exp $"); 28 29 #include <core/object.h> 30 #include <core/client.h> 31 #include <core/engine.h> 32 33 struct nvkm_object * 34 nvkm_object_search(struct nvkm_client *client, u64 handle, 35 const struct nvkm_object_func *func) 36 { 37 struct nvkm_object *object; 38 39 if (handle) { 40 #ifdef __NetBSD__ 41 object = rb_tree_find_node(&client->objtree, &handle); 42 if (object) 43 goto done; 44 #else 45 struct rb_node *node = client->objroot.rb_node; 46 while (node) { 47 object = rb_entry(node, typeof(*object), node); 48 if (handle < object->object) 49 node = node->rb_left; 50 else 51 if (handle > object->object) 52 node = node->rb_right; 53 else 54 goto done; 55 } 56 #endif 57 return ERR_PTR(-ENOENT); 58 } else { 59 object = &client->object; 60 } 61 62 done: 63 if (unlikely(func && object->func != func)) 64 return ERR_PTR(-EINVAL); 65 return object; 66 } 67 68 void 69 nvkm_object_remove(struct nvkm_object *object) 70 { 71 #ifdef __NetBSD__ 72 if (object->on_tree) { 73 rb_tree_remove_node(&object->client->objtree, object); 74 object->on_tree = false; 75 } 76 #else 77 if (!RB_EMPTY_NODE(&object->node)) 78 rb_erase(&object->node, &object->client->objroot); 79 #endif 80 } 81 82 bool 83 nvkm_object_insert(struct nvkm_object *object) 84 { 85 #ifdef __NetBSD__ 86 struct nvkm_object *collision = 87 rb_tree_insert_node(&object->client->objtree, object); 88 89 if (collision != object) 90 return false; /* EEXIST */ 91 92 object->on_tree = true; 93 return true; 94 #else 95 struct rb_node **ptr = &object->client->objroot.rb_node; 96 struct rb_node *parent = NULL; 97 98 while (*ptr) { 99 struct nvkm_object *this = rb_entry(*ptr, typeof(*this), node); 100 parent = *ptr; 101 if (object->object < this->object) 102 ptr = &parent->rb_left; 103 else 104 if (object->object > this->object) 105 ptr = &parent->rb_right; 106 else 107 return false; 108 } 109 110 rb_link_node(&object->node, parent, ptr); 111 rb_insert_color(&object->node, &object->client->objroot); 112 return true; 113 #endif 114 } 115 116 int 117 nvkm_object_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) 118 { 119 if (likely(object->func->mthd)) 120 return object->func->mthd(object, mthd, data, size); 121 return -ENODEV; 122 } 123 124 int 125 nvkm_object_ntfy(struct nvkm_object *object, u32 mthd, 126 struct nvkm_event **pevent) 127 { 128 if (likely(object->func->ntfy)) 129 return object->func->ntfy(object, mthd, pevent); 130 return -ENODEV; 131 } 132 133 #ifdef __NetBSD__ 134 int 135 nvkm_object_map(struct nvkm_object *object, void *argv, u32 argc, 136 enum nvkm_object_map *type, bus_space_tag_t *tagp, u64 *addr, u64 *size) 137 { 138 if (likely(object->func->map)) 139 return object->func->map(object, argv, argc, type, tagp, addr, 140 size); 141 return -ENODEV; 142 } 143 #else 144 int 145 nvkm_object_map(struct nvkm_object *object, void *argv, u32 argc, 146 enum nvkm_object_map *type, u64 *addr, u64 *size) 147 { 148 if (likely(object->func->map)) 149 return object->func->map(object, argv, argc, type, addr, size); 150 return -ENODEV; 151 } 152 #endif 153 154 int 155 nvkm_object_unmap(struct nvkm_object *object) 156 { 157 if (likely(object->func->unmap)) 158 return object->func->unmap(object); 159 return -ENODEV; 160 } 161 162 int 163 nvkm_object_rd08(struct nvkm_object *object, u64 addr, u8 *data) 164 { 165 if (likely(object->func->rd08)) 166 return object->func->rd08(object, addr, data); 167 return -ENODEV; 168 } 169 170 int 171 nvkm_object_rd16(struct nvkm_object *object, u64 addr, u16 *data) 172 { 173 if (likely(object->func->rd16)) 174 return object->func->rd16(object, addr, data); 175 return -ENODEV; 176 } 177 178 int 179 nvkm_object_rd32(struct nvkm_object *object, u64 addr, u32 *data) 180 { 181 if (likely(object->func->rd32)) 182 return object->func->rd32(object, addr, data); 183 return -ENODEV; 184 } 185 186 int 187 nvkm_object_wr08(struct nvkm_object *object, u64 addr, u8 data) 188 { 189 if (likely(object->func->wr08)) 190 return object->func->wr08(object, addr, data); 191 return -ENODEV; 192 } 193 194 int 195 nvkm_object_wr16(struct nvkm_object *object, u64 addr, u16 data) 196 { 197 if (likely(object->func->wr16)) 198 return object->func->wr16(object, addr, data); 199 return -ENODEV; 200 } 201 202 int 203 nvkm_object_wr32(struct nvkm_object *object, u64 addr, u32 data) 204 { 205 if (likely(object->func->wr32)) 206 return object->func->wr32(object, addr, data); 207 return -ENODEV; 208 } 209 210 int 211 nvkm_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *gpuobj, 212 int align, struct nvkm_gpuobj **pgpuobj) 213 { 214 if (object->func->bind) 215 return object->func->bind(object, gpuobj, align, pgpuobj); 216 return -ENODEV; 217 } 218 219 int 220 nvkm_object_fini(struct nvkm_object *object, bool suspend) 221 { 222 const char *action = suspend ? "suspend" : "fini"; 223 struct nvkm_object *child; 224 s64 time; 225 int ret; 226 227 nvif_debug(object, "%s children...\n", action); 228 time = ktime_to_us(ktime_get()); 229 list_for_each_entry(child, &object->tree, head) { 230 ret = nvkm_object_fini(child, suspend); 231 if (ret && suspend) 232 goto fail_child; 233 } 234 235 nvif_debug(object, "%s running...\n", action); 236 if (object->func->fini) { 237 ret = object->func->fini(object, suspend); 238 if (ret) { 239 nvif_error(object, "%s failed with %d\n", action, ret); 240 if (suspend) 241 goto fail; 242 } 243 } 244 245 time = ktime_to_us(ktime_get()) - time; 246 nvif_debug(object, "%s completed in %"PRId64"us\n", action, time); 247 return 0; 248 249 fail: 250 if (object->func->init) { 251 int rret = object->func->init(object); 252 if (rret) 253 nvif_fatal(object, "failed to restart, %d\n", rret); 254 } 255 fail_child: 256 list_for_each_entry_continue_reverse(child, &object->tree, head) { 257 nvkm_object_init(child); 258 } 259 return ret; 260 } 261 262 int 263 nvkm_object_init(struct nvkm_object *object) 264 { 265 struct nvkm_object *child; 266 s64 time; 267 int ret; 268 269 nvif_debug(object, "init running...\n"); 270 time = ktime_to_us(ktime_get()); 271 if (object->func->init) { 272 ret = object->func->init(object); 273 if (ret) 274 goto fail; 275 } 276 277 nvif_debug(object, "init children...\n"); 278 list_for_each_entry(child, &object->tree, head) { 279 ret = nvkm_object_init(child); 280 if (ret) 281 goto fail_child; 282 } 283 284 time = ktime_to_us(ktime_get()) - time; 285 nvif_debug(object, "init completed in %"PRId64"us\n", time); 286 return 0; 287 288 fail_child: 289 list_for_each_entry_continue_reverse(child, &object->tree, head) 290 nvkm_object_fini(child, false); 291 fail: 292 nvif_error(object, "init failed with %d\n", ret); 293 if (object->func->fini) 294 object->func->fini(object, false); 295 return ret; 296 } 297 298 void * 299 nvkm_object_dtor(struct nvkm_object *object) 300 { 301 struct nvkm_object *child, *ctemp; 302 void *data = object; 303 s64 time; 304 305 nvif_debug(object, "destroy children...\n"); 306 time = ktime_to_us(ktime_get()); 307 list_for_each_entry_safe(child, ctemp, &object->tree, head) { 308 nvkm_object_del(&child); 309 } 310 311 nvif_debug(object, "destroy running...\n"); 312 nvkm_object_unmap(object); 313 if (object->func->dtor) 314 data = object->func->dtor(object); 315 nvkm_engine_unref(&object->engine); 316 time = ktime_to_us(ktime_get()) - time; 317 nvif_debug(object, "destroy completed in %"PRId64"us...\n", time); 318 return data; 319 } 320 321 void 322 nvkm_object_del(struct nvkm_object **pobject) 323 { 324 struct nvkm_object *object = *pobject; 325 if (object && !WARN_ON(!object->func)) { 326 *pobject = nvkm_object_dtor(object); 327 nvkm_object_remove(object); 328 list_del(&object->head); 329 kfree(*pobject); 330 *pobject = NULL; 331 } 332 } 333 334 void 335 nvkm_object_ctor(const struct nvkm_object_func *func, 336 const struct nvkm_oclass *oclass, struct nvkm_object *object) 337 { 338 object->func = func; 339 object->client = oclass->client; 340 object->engine = nvkm_engine_ref(oclass->engine); 341 object->oclass = oclass->base.oclass; 342 object->handle = oclass->handle; 343 object->route = oclass->route; 344 object->token = oclass->token; 345 object->object = oclass->object; 346 INIT_LIST_HEAD(&object->head); 347 INIT_LIST_HEAD(&object->tree); 348 #ifdef __NetBSD__ 349 object->on_tree = false; 350 #else 351 RB_CLEAR_NODE(&object->node); 352 #endif 353 WARN_ON(IS_ERR(object->engine)); 354 } 355 356 int 357 nvkm_object_new_(const struct nvkm_object_func *func, 358 const struct nvkm_oclass *oclass, void *data, u32 size, 359 struct nvkm_object **pobject) 360 { 361 if (size == 0) { 362 if (!(*pobject = kzalloc(sizeof(**pobject), GFP_KERNEL))) 363 return -ENOMEM; 364 nvkm_object_ctor(func, oclass, *pobject); 365 return 0; 366 } 367 return -ENOSYS; 368 } 369 370 static const struct nvkm_object_func 371 nvkm_object_func = { 372 }; 373 374 int 375 nvkm_object_new(const struct nvkm_oclass *oclass, void *data, u32 size, 376 struct nvkm_object **pobject) 377 { 378 const struct nvkm_object_func *func = 379 oclass->base.func ? oclass->base.func : &nvkm_object_func; 380 return nvkm_object_new_(func, oclass, data, size, pobject); 381 } 382
Indexes created Mon Sep 22 21:09:42 GMT 2025