David Dai | 0d01443 | 2016-11-10 12:57:44 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved. |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/list.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/slab.h> |
| 17 | #include <linux/rtmutex.h> |
| 18 | #include <linux/clk.h> |
| 19 | #include <linux/msm-bus.h> |
| 20 | #include "msm_bus_core.h" |
| 21 | #include "msm_bus_rpmh.h" |
| 22 | |
| 23 | #define NUM_CL_HANDLES 50 |
| 24 | #define NUM_LNODES 3 |
| 25 | #define MAX_STR_CL 50 |
| 26 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 27 | #define MSM_BUS_MAS_ALC 144 |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 28 | #define MSM_BUS_RSC_APPS 8000 |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 29 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 30 | struct bus_search_type { |
| 31 | struct list_head link; |
| 32 | struct list_head node_list; |
| 33 | }; |
| 34 | |
| 35 | struct handle_type { |
| 36 | int num_entries; |
| 37 | struct msm_bus_client **cl_list; |
| 38 | }; |
| 39 | |
| 40 | static struct handle_type handle_list; |
| 41 | static LIST_HEAD(input_list); |
| 42 | static LIST_HEAD(apply_list); |
| 43 | static LIST_HEAD(commit_list); |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 44 | static LIST_HEAD(late_init_clist); |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 45 | static LIST_HEAD(query_list); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 46 | |
| 47 | DEFINE_RT_MUTEX(msm_bus_adhoc_lock); |
| 48 | |
| 49 | static bool chk_bl_list(struct list_head *black_list, unsigned int id) |
| 50 | { |
| 51 | struct msm_bus_node_device_type *bus_node = NULL; |
| 52 | |
| 53 | list_for_each_entry(bus_node, black_list, link) { |
| 54 | if (bus_node->node_info->id == id) |
| 55 | return true; |
| 56 | } |
| 57 | return false; |
| 58 | } |
| 59 | |
| 60 | static void copy_remaining_nodes(struct list_head *edge_list, struct list_head |
| 61 | *traverse_list, struct list_head *route_list) |
| 62 | { |
| 63 | struct bus_search_type *search_node; |
| 64 | |
| 65 | if (list_empty(edge_list) && list_empty(traverse_list)) |
| 66 | return; |
| 67 | |
| 68 | search_node = kzalloc(sizeof(struct bus_search_type), GFP_KERNEL); |
| 69 | INIT_LIST_HEAD(&search_node->node_list); |
| 70 | list_splice_init(edge_list, traverse_list); |
| 71 | list_splice_init(traverse_list, &search_node->node_list); |
| 72 | list_add_tail(&search_node->link, route_list); |
| 73 | } |
| 74 | |
| 75 | /* |
| 76 | * Duplicate instantiaion from msm_bus_arb.c. Todo there needs to be a |
| 77 | * "util" file for these common func/macros. |
| 78 | * |
| 79 | */ |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 80 | uint64_t msm_bus_div64(uint64_t num, unsigned int base) |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 81 | { |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 82 | uint64_t *n = # |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 83 | |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 84 | if ((num > 0) && (num < base)) |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 85 | return 1; |
| 86 | |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 87 | switch (base) { |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 88 | case 0: |
| 89 | WARN(1, "AXI: Divide by 0 attempted\n"); |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 90 | case 1: return num; |
| 91 | case 2: return (num >> 1); |
| 92 | case 4: return (num >> 2); |
| 93 | case 8: return (num >> 3); |
| 94 | case 16: return (num >> 4); |
| 95 | case 32: return (num >> 5); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 96 | } |
| 97 | |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 98 | do_div(*n, base); |
| 99 | return *n; |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | int msm_bus_device_match_adhoc(struct device *dev, void *id) |
| 103 | { |
| 104 | int ret = 0; |
| 105 | struct msm_bus_node_device_type *bnode = to_msm_bus_node(dev); |
| 106 | |
| 107 | if (bnode) |
| 108 | ret = (bnode->node_info->id == *(unsigned int *)id); |
| 109 | else |
| 110 | ret = 0; |
| 111 | |
| 112 | return ret; |
| 113 | } |
| 114 | |
| 115 | static void bcm_add_bus_req(struct device *dev) |
| 116 | { |
| 117 | struct msm_bus_node_device_type *cur_dev = NULL; |
| 118 | struct msm_bus_node_device_type *bcm_dev = NULL; |
| 119 | struct link_node *lnode; |
| 120 | int lnode_idx = -1; |
| 121 | int max_num_lnodes = 0; |
| 122 | int i; |
| 123 | |
| 124 | cur_dev = to_msm_bus_node(dev); |
| 125 | if (!cur_dev) { |
| 126 | MSM_BUS_ERR("%s: Null device ptr", __func__); |
| 127 | goto exit_bcm_add_bus_req; |
| 128 | } |
| 129 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 130 | if (cur_dev->node_info->bcm_req_idx != -1) |
| 131 | goto exit_bcm_add_bus_req; |
| 132 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 133 | if (!cur_dev->node_info->num_bcm_devs) |
| 134 | goto exit_bcm_add_bus_req; |
| 135 | |
| 136 | for (i = 0; i < cur_dev->node_info->num_bcm_devs; i++) { |
| 137 | bcm_dev = to_msm_bus_node(cur_dev->node_info->bcm_devs[i]); |
| 138 | max_num_lnodes = bcm_dev->bcmdev->num_bus_devs; |
| 139 | |
| 140 | if (!bcm_dev->num_lnodes) { |
| 141 | bcm_dev->lnode_list = devm_kzalloc(dev, |
| 142 | sizeof(struct link_node) * max_num_lnodes, |
| 143 | GFP_KERNEL); |
| 144 | if (!bcm_dev->lnode_list) |
| 145 | goto exit_bcm_add_bus_req; |
| 146 | |
| 147 | lnode = bcm_dev->lnode_list; |
| 148 | bcm_dev->num_lnodes = max_num_lnodes; |
| 149 | lnode_idx = 0; |
| 150 | } else { |
| 151 | int i; |
| 152 | |
| 153 | for (i = 0; i < bcm_dev->num_lnodes; i++) { |
| 154 | if (!bcm_dev->lnode_list[i].in_use) |
| 155 | break; |
| 156 | } |
| 157 | |
| 158 | if (i < bcm_dev->num_lnodes) { |
| 159 | lnode = &bcm_dev->lnode_list[i]; |
| 160 | lnode_idx = i; |
| 161 | } else { |
| 162 | struct link_node *realloc_list; |
| 163 | size_t cur_size = sizeof(struct link_node) * |
| 164 | bcm_dev->num_lnodes; |
| 165 | |
| 166 | bcm_dev->num_lnodes += NUM_LNODES; |
| 167 | realloc_list = msm_bus_realloc_devmem( |
| 168 | dev, |
| 169 | bcm_dev->lnode_list, |
| 170 | cur_size, |
| 171 | sizeof(struct link_node) * |
| 172 | bcm_dev->num_lnodes, |
| 173 | GFP_KERNEL); |
| 174 | |
| 175 | if (!realloc_list) |
| 176 | goto exit_bcm_add_bus_req; |
| 177 | |
| 178 | bcm_dev->lnode_list = realloc_list; |
| 179 | lnode = &bcm_dev->lnode_list[i]; |
| 180 | lnode_idx = i; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | lnode->in_use = 1; |
| 185 | lnode->bus_dev_id = cur_dev->node_info->id; |
| 186 | cur_dev->node_info->bcm_req_idx = lnode_idx; |
| 187 | memset(lnode->lnode_ib, 0, sizeof(uint64_t) * NUM_CTX); |
| 188 | memset(lnode->lnode_ab, 0, sizeof(uint64_t) * NUM_CTX); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | exit_bcm_add_bus_req: |
| 192 | return; |
| 193 | } |
| 194 | |
| 195 | static int gen_lnode(struct device *dev, |
| 196 | int next_hop, int prev_idx, const char *cl_name) |
| 197 | { |
| 198 | struct link_node *lnode; |
| 199 | struct msm_bus_node_device_type *cur_dev = NULL; |
| 200 | int lnode_idx = -1; |
| 201 | |
| 202 | if (!dev) |
| 203 | goto exit_gen_lnode; |
| 204 | |
| 205 | cur_dev = to_msm_bus_node(dev); |
| 206 | if (!cur_dev) { |
| 207 | MSM_BUS_ERR("%s: Null device ptr", __func__); |
| 208 | goto exit_gen_lnode; |
| 209 | } |
| 210 | |
| 211 | if (!cur_dev->num_lnodes) { |
| 212 | cur_dev->lnode_list = devm_kzalloc(dev, |
| 213 | sizeof(struct link_node) * NUM_LNODES, |
| 214 | GFP_KERNEL); |
| 215 | if (!cur_dev->lnode_list) |
| 216 | goto exit_gen_lnode; |
| 217 | |
| 218 | lnode = cur_dev->lnode_list; |
| 219 | cur_dev->num_lnodes = NUM_LNODES; |
| 220 | lnode_idx = 0; |
| 221 | } else { |
| 222 | int i; |
| 223 | |
| 224 | for (i = 0; i < cur_dev->num_lnodes; i++) { |
| 225 | if (!cur_dev->lnode_list[i].in_use) |
| 226 | break; |
| 227 | } |
| 228 | |
| 229 | if (i < cur_dev->num_lnodes) { |
| 230 | lnode = &cur_dev->lnode_list[i]; |
| 231 | lnode_idx = i; |
| 232 | } else { |
| 233 | struct link_node *realloc_list; |
| 234 | size_t cur_size = sizeof(struct link_node) * |
| 235 | cur_dev->num_lnodes; |
| 236 | |
| 237 | cur_dev->num_lnodes += NUM_LNODES; |
| 238 | realloc_list = msm_bus_realloc_devmem( |
| 239 | dev, |
| 240 | cur_dev->lnode_list, |
| 241 | cur_size, |
| 242 | sizeof(struct link_node) * |
| 243 | cur_dev->num_lnodes, GFP_KERNEL); |
| 244 | |
| 245 | if (!realloc_list) |
| 246 | goto exit_gen_lnode; |
| 247 | |
| 248 | cur_dev->lnode_list = realloc_list; |
| 249 | lnode = &cur_dev->lnode_list[i]; |
| 250 | lnode_idx = i; |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | lnode->in_use = 1; |
| 255 | lnode->cl_name = cl_name; |
| 256 | if (next_hop == cur_dev->node_info->id) { |
| 257 | lnode->next = -1; |
| 258 | lnode->next_dev = NULL; |
| 259 | } else { |
| 260 | lnode->next = prev_idx; |
| 261 | lnode->next_dev = bus_find_device(&msm_bus_type, NULL, |
| 262 | (void *) &next_hop, |
| 263 | msm_bus_device_match_adhoc); |
| 264 | } |
| 265 | |
| 266 | memset(lnode->lnode_ib, 0, sizeof(uint64_t) * NUM_CTX); |
| 267 | memset(lnode->lnode_ab, 0, sizeof(uint64_t) * NUM_CTX); |
| 268 | |
| 269 | exit_gen_lnode: |
| 270 | return lnode_idx; |
| 271 | } |
| 272 | |
| 273 | static int remove_lnode(struct msm_bus_node_device_type *cur_dev, |
| 274 | int lnode_idx) |
| 275 | { |
| 276 | int ret = 0; |
| 277 | |
| 278 | if (!cur_dev) { |
| 279 | MSM_BUS_ERR("%s: Null device ptr", __func__); |
| 280 | ret = -ENODEV; |
| 281 | goto exit_remove_lnode; |
| 282 | } |
| 283 | |
| 284 | if (lnode_idx != -1) { |
| 285 | if (!cur_dev->num_lnodes || |
| 286 | (lnode_idx > (cur_dev->num_lnodes - 1))) { |
| 287 | MSM_BUS_ERR("%s: Invalid Idx %d, num_lnodes %d", |
| 288 | __func__, lnode_idx, cur_dev->num_lnodes); |
| 289 | ret = -ENODEV; |
| 290 | goto exit_remove_lnode; |
| 291 | } |
| 292 | |
| 293 | cur_dev->lnode_list[lnode_idx].next = -1; |
| 294 | cur_dev->lnode_list[lnode_idx].next_dev = NULL; |
| 295 | cur_dev->lnode_list[lnode_idx].in_use = 0; |
| 296 | cur_dev->lnode_list[lnode_idx].cl_name = NULL; |
| 297 | } |
| 298 | |
| 299 | exit_remove_lnode: |
| 300 | return ret; |
| 301 | } |
| 302 | |
| 303 | static int prune_path(struct list_head *route_list, int dest, int src, |
| 304 | struct list_head *black_list, int found, |
| 305 | const char *cl_name) |
| 306 | { |
| 307 | struct bus_search_type *search_node, *temp_search_node; |
| 308 | struct msm_bus_node_device_type *bus_node; |
| 309 | struct list_head *bl_list; |
| 310 | struct list_head *temp_bl_list; |
| 311 | int search_dev_id = dest; |
| 312 | struct device *dest_dev = bus_find_device(&msm_bus_type, NULL, |
| 313 | (void *) &dest, |
| 314 | msm_bus_device_match_adhoc); |
| 315 | int lnode_hop = -1; |
| 316 | |
| 317 | if (!found) |
| 318 | goto reset_links; |
| 319 | |
| 320 | if (!dest_dev) { |
| 321 | MSM_BUS_ERR("%s: Can't find dest dev %d", __func__, dest); |
| 322 | goto exit_prune_path; |
| 323 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 324 | |
| 325 | lnode_hop = gen_lnode(dest_dev, search_dev_id, lnode_hop, cl_name); |
| 326 | bcm_add_bus_req(dest_dev); |
| 327 | |
| 328 | list_for_each_entry_reverse(search_node, route_list, link) { |
| 329 | list_for_each_entry(bus_node, &search_node->node_list, link) { |
| 330 | unsigned int i; |
| 331 | |
| 332 | for (i = 0; i < bus_node->node_info->num_connections; |
| 333 | i++) { |
| 334 | if (bus_node->node_info->connections[i] == |
| 335 | search_dev_id) { |
| 336 | dest_dev = bus_find_device( |
| 337 | &msm_bus_type, |
| 338 | NULL, |
| 339 | (void *) |
| 340 | &bus_node->node_info-> |
| 341 | id, |
| 342 | msm_bus_device_match_adhoc); |
| 343 | |
| 344 | if (!dest_dev) { |
| 345 | lnode_hop = -1; |
| 346 | goto reset_links; |
| 347 | } |
| 348 | |
| 349 | lnode_hop = gen_lnode(dest_dev, |
| 350 | search_dev_id, |
| 351 | lnode_hop, cl_name); |
| 352 | bcm_add_bus_req(dest_dev); |
| 353 | search_dev_id = |
| 354 | bus_node->node_info->id; |
| 355 | break; |
| 356 | } |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | reset_links: |
| 361 | list_for_each_entry_safe(search_node, temp_search_node, route_list, |
| 362 | link) { |
| 363 | list_for_each_entry(bus_node, &search_node->node_list, link) |
| 364 | bus_node->node_info->is_traversed = false; |
| 365 | |
| 366 | list_del(&search_node->link); |
| 367 | kfree(search_node); |
| 368 | } |
| 369 | |
| 370 | list_for_each_safe(bl_list, temp_bl_list, black_list) |
| 371 | list_del(bl_list); |
| 372 | |
| 373 | exit_prune_path: |
| 374 | return lnode_hop; |
| 375 | } |
| 376 | |
| 377 | static void setup_bl_list(struct msm_bus_node_device_type *node, |
| 378 | struct list_head *black_list) |
| 379 | { |
| 380 | unsigned int i; |
| 381 | |
| 382 | for (i = 0; i < node->node_info->num_blist; i++) { |
| 383 | struct msm_bus_node_device_type *bdev; |
| 384 | |
| 385 | bdev = to_msm_bus_node(node->node_info->black_connections[i]); |
| 386 | list_add_tail(&bdev->link, black_list); |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | static int getpath(struct device *src_dev, int dest, const char *cl_name) |
| 391 | { |
| 392 | struct list_head traverse_list; |
| 393 | struct list_head edge_list; |
| 394 | struct list_head route_list; |
| 395 | struct list_head black_list; |
| 396 | struct msm_bus_node_device_type *src_node; |
| 397 | struct bus_search_type *search_node; |
| 398 | int found = 0; |
| 399 | int depth_index = 0; |
| 400 | int first_hop = -1; |
| 401 | int src; |
| 402 | |
| 403 | INIT_LIST_HEAD(&traverse_list); |
| 404 | INIT_LIST_HEAD(&edge_list); |
| 405 | INIT_LIST_HEAD(&route_list); |
| 406 | INIT_LIST_HEAD(&black_list); |
| 407 | |
| 408 | if (!src_dev) { |
| 409 | MSM_BUS_ERR("%s: Cannot locate src dev ", __func__); |
| 410 | goto exit_getpath; |
| 411 | } |
| 412 | |
| 413 | src_node = to_msm_bus_node(src_dev); |
| 414 | if (!src_node) { |
| 415 | MSM_BUS_ERR("%s:Fatal, Source node not found", __func__); |
| 416 | goto exit_getpath; |
| 417 | } |
| 418 | src = src_node->node_info->id; |
| 419 | list_add_tail(&src_node->link, &traverse_list); |
| 420 | |
| 421 | while ((!found && !list_empty(&traverse_list))) { |
| 422 | struct msm_bus_node_device_type *bus_node = NULL; |
| 423 | /* Locate dest_id in the traverse list */ |
| 424 | list_for_each_entry(bus_node, &traverse_list, link) { |
| 425 | if (bus_node->node_info->id == dest) { |
| 426 | found = 1; |
| 427 | break; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | if (!found) { |
| 432 | unsigned int i; |
| 433 | /* Setup the new edge list */ |
| 434 | list_for_each_entry(bus_node, &traverse_list, link) { |
| 435 | /* Setup list of black-listed nodes */ |
| 436 | setup_bl_list(bus_node, &black_list); |
| 437 | |
| 438 | for (i = 0; i < bus_node->node_info-> |
| 439 | num_connections; i++) { |
| 440 | bool skip; |
| 441 | struct msm_bus_node_device_type |
| 442 | *node_conn; |
| 443 | node_conn = |
| 444 | to_msm_bus_node(bus_node->node_info-> |
| 445 | dev_connections[i]); |
| 446 | if (node_conn->node_info-> |
| 447 | is_traversed) { |
| 448 | MSM_BUS_ERR("Circ Path %d\n", |
| 449 | node_conn->node_info->id); |
| 450 | goto reset_traversed; |
| 451 | } |
| 452 | skip = chk_bl_list(&black_list, |
| 453 | bus_node->node_info-> |
| 454 | connections[i]); |
| 455 | if (!skip) { |
| 456 | list_add_tail(&node_conn->link, |
| 457 | &edge_list); |
| 458 | node_conn->node_info-> |
| 459 | is_traversed = true; |
| 460 | } |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | /* Keep tabs of the previous search list */ |
| 465 | search_node = kzalloc(sizeof(struct bus_search_type), |
| 466 | GFP_KERNEL); |
| 467 | INIT_LIST_HEAD(&search_node->node_list); |
| 468 | list_splice_init(&traverse_list, |
| 469 | &search_node->node_list); |
| 470 | /* Add the previous search list to a route list */ |
| 471 | list_add_tail(&search_node->link, &route_list); |
| 472 | /* Advancing the list depth */ |
| 473 | depth_index++; |
| 474 | list_splice_init(&edge_list, &traverse_list); |
| 475 | } |
| 476 | } |
| 477 | reset_traversed: |
| 478 | copy_remaining_nodes(&edge_list, &traverse_list, &route_list); |
| 479 | first_hop = prune_path(&route_list, dest, src, &black_list, found, |
| 480 | cl_name); |
| 481 | |
| 482 | exit_getpath: |
| 483 | return first_hop; |
| 484 | } |
| 485 | |
| 486 | static void bcm_update_bus_req(struct device *dev, int ctx) |
| 487 | { |
| 488 | struct msm_bus_node_device_type *cur_dev = NULL; |
| 489 | struct msm_bus_node_device_type *bcm_dev = NULL; |
| 490 | int i; |
| 491 | uint64_t max_ib = 0; |
| 492 | uint64_t max_ab = 0; |
| 493 | int lnode_idx = 0; |
| 494 | |
| 495 | cur_dev = to_msm_bus_node(dev); |
| 496 | if (!cur_dev) { |
| 497 | MSM_BUS_ERR("%s: Null device ptr", __func__); |
| 498 | goto exit_bcm_update_bus_req; |
| 499 | } |
| 500 | |
| 501 | if (!cur_dev->node_info->num_bcm_devs) |
| 502 | goto exit_bcm_update_bus_req; |
| 503 | |
| 504 | for (i = 0; i < cur_dev->node_info->num_bcm_devs; i++) { |
| 505 | bcm_dev = to_msm_bus_node(cur_dev->node_info->bcm_devs[i]); |
| 506 | |
| 507 | if (!bcm_dev) |
| 508 | goto exit_bcm_update_bus_req; |
| 509 | |
| 510 | lnode_idx = cur_dev->node_info->bcm_req_idx; |
| 511 | bcm_dev->lnode_list[lnode_idx].lnode_ib[ctx] = |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 512 | msm_bus_div64(cur_dev->node_bw[ctx].max_ib * |
| 513 | (uint64_t)bcm_dev->bcmdev->width, |
| 514 | cur_dev->node_info->agg_params.buswidth); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 515 | |
| 516 | bcm_dev->lnode_list[lnode_idx].lnode_ab[ctx] = |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 517 | msm_bus_div64(cur_dev->node_bw[ctx].sum_ab * |
| 518 | (uint64_t)bcm_dev->bcmdev->width, |
| 519 | cur_dev->node_info->agg_params.buswidth * |
| 520 | cur_dev->node_info->agg_params.num_aggports); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 521 | |
| 522 | for (i = 0; i < bcm_dev->num_lnodes; i++) { |
| 523 | if (ctx == ACTIVE_CTX) { |
| 524 | max_ib = max(max_ib, |
| 525 | max(bcm_dev->lnode_list[i].lnode_ib[ACTIVE_CTX], |
| 526 | bcm_dev->lnode_list[i].lnode_ib[DUAL_CTX])); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 527 | max_ab = max(max_ab, |
| 528 | bcm_dev->lnode_list[i].lnode_ab[ACTIVE_CTX] + |
| 529 | bcm_dev->lnode_list[i].lnode_ab[DUAL_CTX]); |
| 530 | } else { |
| 531 | max_ib = max(max_ib, |
| 532 | bcm_dev->lnode_list[i].lnode_ib[ctx]); |
| 533 | max_ab = max(max_ab, |
| 534 | bcm_dev->lnode_list[i].lnode_ab[ctx]); |
| 535 | } |
| 536 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 537 | bcm_dev->node_bw[ctx].max_ab = max_ab; |
| 538 | bcm_dev->node_bw[ctx].max_ib = max_ib; |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 539 | |
| 540 | max_ab = msm_bus_div64(max_ab, bcm_dev->bcmdev->unit_size); |
| 541 | max_ib = msm_bus_div64(max_ib, bcm_dev->bcmdev->unit_size); |
| 542 | |
| 543 | bcm_dev->node_vec[ctx].vec_a = max_ab; |
| 544 | bcm_dev->node_vec[ctx].vec_b = max_ib; |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 545 | } |
| 546 | exit_bcm_update_bus_req: |
| 547 | return; |
| 548 | } |
| 549 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 550 | static void bcm_query_bus_req(struct device *dev, int ctx) |
| 551 | { |
| 552 | struct msm_bus_node_device_type *cur_dev = NULL; |
| 553 | struct msm_bus_node_device_type *bcm_dev = NULL; |
| 554 | int i; |
| 555 | uint64_t max_query_ib = 0; |
| 556 | uint64_t max_query_ab = 0; |
| 557 | int lnode_idx = 0; |
| 558 | |
| 559 | cur_dev = to_msm_bus_node(dev); |
| 560 | if (!cur_dev) { |
| 561 | MSM_BUS_ERR("%s: Null device ptr", __func__); |
| 562 | goto exit_bcm_query_bus_req; |
| 563 | } |
| 564 | |
| 565 | if (!cur_dev->node_info->num_bcm_devs) |
| 566 | goto exit_bcm_query_bus_req; |
| 567 | |
| 568 | for (i = 0; i < cur_dev->node_info->num_bcm_devs; i++) { |
| 569 | bcm_dev = to_msm_bus_node(cur_dev->node_info->bcm_devs[i]); |
| 570 | |
| 571 | if (!bcm_dev) |
| 572 | goto exit_bcm_query_bus_req; |
| 573 | |
| 574 | lnode_idx = cur_dev->node_info->bcm_req_idx; |
| 575 | bcm_dev->lnode_list[lnode_idx].lnode_query_ib[ctx] = |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 576 | msm_bus_div64(cur_dev->node_bw[ctx].max_query_ib * |
| 577 | (uint64_t)bcm_dev->bcmdev->width, |
| 578 | cur_dev->node_info->agg_params.buswidth); |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 579 | |
| 580 | bcm_dev->lnode_list[lnode_idx].lnode_query_ab[ctx] = |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 581 | msm_bus_div64(cur_dev->node_bw[ctx].sum_query_ab * |
| 582 | (uint64_t)bcm_dev->bcmdev->width, |
David Dai | 489b0d7 | 2017-03-14 13:05:01 -0700 | [diff] [blame] | 583 | cur_dev->node_info->agg_params.num_aggports * |
David Dai | 607fbc4 | 2017-03-02 16:22:36 -0800 | [diff] [blame] | 584 | cur_dev->node_info->agg_params.buswidth); |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 585 | |
| 586 | for (i = 0; i < bcm_dev->num_lnodes; i++) { |
| 587 | if (ctx == ACTIVE_CTX) { |
| 588 | max_query_ib = max(max_query_ib, |
| 589 | max(bcm_dev->lnode_list[i]. |
| 590 | lnode_query_ib[ACTIVE_CTX], |
| 591 | bcm_dev->lnode_list[i]. |
| 592 | lnode_query_ib[DUAL_CTX])); |
| 593 | |
| 594 | max_query_ab = max(max_query_ab, |
| 595 | bcm_dev->lnode_list[i]. |
| 596 | lnode_query_ab[ACTIVE_CTX] + |
| 597 | bcm_dev->lnode_list[i]. |
| 598 | lnode_query_ab[DUAL_CTX]); |
| 599 | } else { |
| 600 | max_query_ib = max(max_query_ib, |
| 601 | bcm_dev->lnode_list[i]. |
| 602 | lnode_query_ib[ctx]); |
| 603 | max_query_ab = max(max_query_ab, |
| 604 | bcm_dev->lnode_list[i]. |
| 605 | lnode_query_ab[ctx]); |
| 606 | } |
| 607 | } |
| 608 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 609 | max_query_ab = msm_bus_div64(max_query_ab, |
| 610 | bcm_dev->bcmdev->unit_size); |
| 611 | max_query_ib = msm_bus_div64(max_query_ib, |
| 612 | bcm_dev->bcmdev->unit_size); |
| 613 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 614 | bcm_dev->node_bw[ctx].max_query_ab = max_query_ab; |
| 615 | bcm_dev->node_bw[ctx].max_query_ib = max_query_ib; |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 616 | } |
| 617 | exit_bcm_query_bus_req: |
| 618 | return; |
| 619 | } |
| 620 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 621 | static void bcm_update_alc_req(struct msm_bus_node_device_type *dev, int ctx) |
| 622 | { |
| 623 | struct msm_bus_node_device_type *bcm_dev = NULL; |
| 624 | int i; |
| 625 | uint64_t max_alc = 0; |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 626 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 627 | if (!dev || !to_msm_bus_node(dev->node_info->bus_device)) { |
| 628 | MSM_BUS_ERR("Bus node pointer is Invalid"); |
| 629 | goto exit_bcm_update_alc_req; |
| 630 | } |
| 631 | |
| 632 | for (i = 0; i < dev->num_lnodes; i++) |
| 633 | max_alc = max(max_alc, dev->lnode_list[i].alc_idx[ctx]); |
| 634 | |
| 635 | dev->node_bw[ctx].max_alc = max_alc; |
| 636 | |
| 637 | bcm_dev = to_msm_bus_node(dev->node_info->bcm_devs[0]); |
| 638 | |
| 639 | if (ctx == ACTIVE_CTX) { |
| 640 | max_alc = max(max_alc, |
| 641 | max(dev->node_bw[ACTIVE_CTX].max_alc, |
| 642 | dev->node_bw[DUAL_CTX].max_alc)); |
| 643 | } else { |
| 644 | max_alc = dev->node_bw[ctx].max_alc; |
| 645 | } |
| 646 | |
| 647 | bcm_dev->node_bw[ctx].max_alc = max_alc; |
| 648 | bcm_dev->node_vec[ctx].vec_a = max_alc; |
| 649 | bcm_dev->node_vec[ctx].vec_b = 0; |
| 650 | |
| 651 | exit_bcm_update_alc_req: |
| 652 | return; |
| 653 | } |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 654 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 655 | int bcm_remove_handoff_req(struct device *dev, void *data) |
| 656 | { |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 657 | struct msm_bus_node_device_type *bus_dev = NULL; |
| 658 | struct msm_bus_node_device_type *cur_bcm = NULL; |
| 659 | struct msm_bus_node_device_type *cur_rsc = NULL; |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 660 | int ret = 0; |
| 661 | |
| 662 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 663 | |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 664 | bus_dev = to_msm_bus_node(dev); |
| 665 | if (bus_dev->node_info->is_bcm_dev || |
| 666 | bus_dev->node_info->is_fab_dev || |
| 667 | bus_dev->node_info->is_rsc_dev) |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 668 | goto exit_bcm_remove_handoff_req; |
| 669 | |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 670 | if (bus_dev->node_info->num_bcm_devs) { |
| 671 | cur_bcm = to_msm_bus_node(bus_dev->node_info->bcm_devs[0]); |
| 672 | if (cur_bcm->node_info->num_rsc_devs) { |
| 673 | cur_rsc = |
| 674 | to_msm_bus_node(cur_bcm->node_info->rsc_devs[0]); |
| 675 | if (cur_rsc->node_info->id != MSM_BUS_RSC_APPS) |
| 676 | goto exit_bcm_remove_handoff_req; |
| 677 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 678 | } |
| 679 | |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 680 | if (!bus_dev->dirty) { |
| 681 | list_add_tail(&bus_dev->link, &late_init_clist); |
| 682 | bus_dev->dirty = true; |
| 683 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 684 | |
| 685 | exit_bcm_remove_handoff_req: |
| 686 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 687 | return ret; |
| 688 | } |
| 689 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 690 | static void aggregate_bus_req(struct msm_bus_node_device_type *bus_dev, |
| 691 | int ctx) |
| 692 | { |
| 693 | int i; |
| 694 | uint64_t max_ib = 0; |
| 695 | uint64_t sum_ab = 0; |
| 696 | |
| 697 | if (!bus_dev || !to_msm_bus_node(bus_dev->node_info->bus_device)) { |
| 698 | MSM_BUS_ERR("Bus node pointer is Invalid"); |
| 699 | goto exit_agg_bus_req; |
| 700 | } |
| 701 | |
| 702 | for (i = 0; i < bus_dev->num_lnodes; i++) { |
| 703 | max_ib = max(max_ib, bus_dev->lnode_list[i].lnode_ib[ctx]); |
| 704 | sum_ab += bus_dev->lnode_list[i].lnode_ab[ctx]; |
| 705 | } |
| 706 | |
| 707 | bus_dev->node_bw[ctx].sum_ab = sum_ab; |
| 708 | bus_dev->node_bw[ctx].max_ib = max_ib; |
| 709 | |
| 710 | exit_agg_bus_req: |
| 711 | return; |
| 712 | } |
| 713 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 714 | static void aggregate_bus_query_req(struct msm_bus_node_device_type *bus_dev, |
| 715 | int ctx) |
| 716 | { |
| 717 | int i; |
| 718 | uint64_t max_ib = 0; |
| 719 | uint64_t sum_ab = 0; |
| 720 | |
| 721 | if (!bus_dev || !to_msm_bus_node(bus_dev->node_info->bus_device)) { |
| 722 | MSM_BUS_ERR("Bus node pointer is Invalid"); |
| 723 | goto exit_agg_bus_req; |
| 724 | } |
| 725 | |
| 726 | for (i = 0; i < bus_dev->num_lnodes; i++) { |
| 727 | max_ib = max(max_ib, |
| 728 | bus_dev->lnode_list[i].lnode_query_ib[ctx]); |
| 729 | sum_ab += bus_dev->lnode_list[i].lnode_query_ab[ctx]; |
| 730 | } |
| 731 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 732 | bus_dev->node_bw[ctx].sum_query_ab = sum_ab; |
| 733 | bus_dev->node_bw[ctx].max_query_ib = max_ib; |
| 734 | |
| 735 | exit_agg_bus_req: |
| 736 | return; |
| 737 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 738 | |
| 739 | static void del_inp_list(struct list_head *list) |
| 740 | { |
| 741 | struct rule_update_path_info *rule_node; |
| 742 | struct rule_update_path_info *rule_node_tmp; |
| 743 | |
| 744 | list_for_each_entry_safe(rule_node, rule_node_tmp, list, link) { |
| 745 | list_del(&rule_node->link); |
| 746 | rule_node->added = false; |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | static void del_op_list(struct list_head *list) |
| 751 | { |
| 752 | struct rule_apply_rcm_info *rule; |
| 753 | struct rule_apply_rcm_info *rule_tmp; |
| 754 | |
| 755 | list_for_each_entry_safe(rule, rule_tmp, list, link) |
| 756 | list_del(&rule->link); |
| 757 | } |
| 758 | |
| 759 | static int msm_bus_apply_rules(struct list_head *list, bool after_clk_commit) |
| 760 | { |
| 761 | struct rule_apply_rcm_info *rule; |
| 762 | struct device *dev = NULL; |
| 763 | struct msm_bus_node_device_type *dev_info = NULL; |
| 764 | int ret = 0; |
| 765 | |
| 766 | list_for_each_entry(rule, list, link) { |
| 767 | if (!rule) |
| 768 | continue; |
| 769 | |
| 770 | if (rule && (rule->after_clk_commit != after_clk_commit)) |
| 771 | continue; |
| 772 | |
| 773 | dev = bus_find_device(&msm_bus_type, NULL, |
| 774 | (void *) &rule->id, |
| 775 | msm_bus_device_match_adhoc); |
| 776 | |
| 777 | if (!dev) { |
| 778 | MSM_BUS_ERR("Can't find dev node for %d", rule->id); |
| 779 | continue; |
| 780 | } |
| 781 | dev_info = to_msm_bus_node(dev); |
| 782 | |
| 783 | ret = msm_bus_enable_limiter(dev_info, rule->throttle, |
| 784 | rule->lim_bw); |
| 785 | if (ret) |
| 786 | MSM_BUS_ERR("Failed to set limiter for %d", rule->id); |
| 787 | } |
| 788 | |
| 789 | return ret; |
| 790 | } |
| 791 | |
| 792 | static void commit_data(void) |
| 793 | { |
| 794 | bool rules_registered = msm_rule_are_rules_registered(); |
| 795 | |
| 796 | if (rules_registered) { |
| 797 | msm_rules_update_path(&input_list, &apply_list); |
| 798 | msm_bus_apply_rules(&apply_list, false); |
| 799 | } |
| 800 | |
| 801 | msm_bus_commit_data(&commit_list); |
| 802 | |
| 803 | if (rules_registered) { |
| 804 | msm_bus_apply_rules(&apply_list, true); |
| 805 | del_inp_list(&input_list); |
| 806 | del_op_list(&apply_list); |
| 807 | } |
| 808 | INIT_LIST_HEAD(&input_list); |
| 809 | INIT_LIST_HEAD(&apply_list); |
| 810 | INIT_LIST_HEAD(&commit_list); |
| 811 | } |
| 812 | |
David Dai | 62c04a6 | 2017-04-12 19:05:49 -0700 | [diff] [blame^] | 813 | void commit_late_init_data(void) |
| 814 | { |
| 815 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 816 | |
| 817 | msm_bus_commit_data(&late_init_clist); |
| 818 | INIT_LIST_HEAD(&late_init_clist); |
| 819 | |
| 820 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 821 | } |
| 822 | |
| 823 | |
| 824 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 825 | static void add_node_to_clist(struct msm_bus_node_device_type *node) |
| 826 | { |
| 827 | struct msm_bus_node_device_type *node_parent = |
| 828 | to_msm_bus_node(node->node_info->bus_device); |
| 829 | |
| 830 | if (!node->dirty) { |
| 831 | list_add_tail(&node->link, &commit_list); |
| 832 | node->dirty = true; |
| 833 | } |
| 834 | |
| 835 | if (!node_parent->dirty) { |
| 836 | list_add_tail(&node_parent->link, &commit_list); |
| 837 | node_parent->dirty = true; |
| 838 | } |
| 839 | } |
| 840 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 841 | static void add_node_to_query_list(struct msm_bus_node_device_type *node) |
| 842 | { |
| 843 | if (!node->query_dirty) { |
| 844 | list_add_tail(&node->query_link, &query_list); |
| 845 | node->query_dirty = true; |
| 846 | } |
| 847 | } |
| 848 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 849 | static int update_path(struct device *src_dev, int dest, uint64_t act_req_ib, |
| 850 | uint64_t act_req_bw, uint64_t slp_req_ib, |
| 851 | uint64_t slp_req_bw, uint64_t cur_ib, uint64_t cur_bw, |
| 852 | int src_idx, int ctx) |
| 853 | { |
| 854 | struct device *next_dev = NULL; |
| 855 | struct link_node *lnode = NULL; |
| 856 | struct msm_bus_node_device_type *dev_info = NULL; |
| 857 | int curr_idx; |
| 858 | int ret = 0; |
| 859 | struct rule_update_path_info *rule_node; |
| 860 | bool rules_registered = msm_rule_are_rules_registered(); |
| 861 | |
| 862 | if (IS_ERR_OR_NULL(src_dev)) { |
| 863 | MSM_BUS_ERR("%s: No source device", __func__); |
| 864 | ret = -ENODEV; |
| 865 | goto exit_update_path; |
| 866 | } |
| 867 | |
| 868 | next_dev = src_dev; |
| 869 | |
| 870 | if (src_idx < 0) { |
| 871 | MSM_BUS_ERR("%s: Invalid lnode idx %d", __func__, src_idx); |
| 872 | ret = -ENXIO; |
| 873 | goto exit_update_path; |
| 874 | } |
| 875 | curr_idx = src_idx; |
| 876 | |
| 877 | while (next_dev) { |
| 878 | int i; |
| 879 | |
| 880 | dev_info = to_msm_bus_node(next_dev); |
| 881 | |
| 882 | if (curr_idx >= dev_info->num_lnodes) { |
| 883 | MSM_BUS_ERR("%s: Invalid lnode Idx %d num lnodes %d", |
| 884 | __func__, curr_idx, dev_info->num_lnodes); |
| 885 | ret = -ENXIO; |
| 886 | goto exit_update_path; |
| 887 | } |
| 888 | |
| 889 | lnode = &dev_info->lnode_list[curr_idx]; |
| 890 | if (!lnode) { |
| 891 | MSM_BUS_ERR("%s: Invalid lnode ptr lnode %d", |
| 892 | __func__, curr_idx); |
| 893 | ret = -ENXIO; |
| 894 | goto exit_update_path; |
| 895 | } |
| 896 | lnode->lnode_ib[ACTIVE_CTX] = act_req_ib; |
| 897 | lnode->lnode_ab[ACTIVE_CTX] = act_req_bw; |
| 898 | lnode->lnode_ib[DUAL_CTX] = slp_req_ib; |
| 899 | lnode->lnode_ab[DUAL_CTX] = slp_req_bw; |
| 900 | |
| 901 | for (i = 0; i < NUM_CTX; i++) { |
| 902 | aggregate_bus_req(dev_info, i); |
| 903 | bcm_update_bus_req(next_dev, i); |
| 904 | } |
| 905 | |
| 906 | add_node_to_clist(dev_info); |
| 907 | |
| 908 | if (rules_registered) { |
| 909 | rule_node = &dev_info->node_info->rule; |
| 910 | rule_node->id = dev_info->node_info->id; |
| 911 | rule_node->ib = dev_info->node_bw[ACTIVE_CTX].max_ib; |
| 912 | rule_node->ab = dev_info->node_bw[ACTIVE_CTX].sum_ab; |
| 913 | rule_node->clk = |
| 914 | dev_info->node_bw[ACTIVE_CTX].cur_clk_hz; |
| 915 | if (!rule_node->added) { |
| 916 | list_add_tail(&rule_node->link, &input_list); |
| 917 | rule_node->added = true; |
| 918 | } |
| 919 | } |
| 920 | |
| 921 | next_dev = lnode->next_dev; |
| 922 | curr_idx = lnode->next; |
| 923 | } |
| 924 | |
| 925 | exit_update_path: |
| 926 | return ret; |
| 927 | } |
| 928 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 929 | static int update_alc_vote(struct device *alc_dev, uint64_t act_req_fa_lat, |
| 930 | uint64_t act_req_idle_time, uint64_t slp_req_fa_lat, |
| 931 | uint64_t slp_req_idle_time, uint64_t cur_fa_lat, |
| 932 | uint64_t cur_idle_time, int idx, int ctx) |
| 933 | { |
| 934 | struct link_node *lnode = NULL; |
| 935 | struct msm_bus_node_device_type *dev_info = NULL; |
| 936 | int curr_idx, i; |
| 937 | int ret = 0; |
| 938 | |
| 939 | if (IS_ERR_OR_NULL(alc_dev)) { |
| 940 | MSM_BUS_ERR("%s: No source device", __func__); |
| 941 | ret = -ENODEV; |
| 942 | goto exit_update_alc_vote; |
| 943 | } |
| 944 | |
| 945 | if (idx < 0) { |
| 946 | MSM_BUS_ERR("%s: Invalid lnode idx %d", __func__, idx); |
| 947 | ret = -ENXIO; |
| 948 | goto exit_update_alc_vote; |
| 949 | } |
| 950 | |
| 951 | dev_info = to_msm_bus_node(alc_dev); |
| 952 | curr_idx = idx; |
| 953 | |
| 954 | if (curr_idx >= dev_info->num_lnodes) { |
| 955 | MSM_BUS_ERR("%s: Invalid lnode Idx %d num lnodes %d", |
| 956 | __func__, curr_idx, dev_info->num_lnodes); |
| 957 | ret = -ENXIO; |
| 958 | goto exit_update_alc_vote; |
| 959 | } |
| 960 | |
| 961 | lnode = &dev_info->lnode_list[curr_idx]; |
| 962 | if (!lnode) { |
| 963 | MSM_BUS_ERR("%s: Invalid lnode ptr lnode %d", |
| 964 | __func__, curr_idx); |
| 965 | ret = -ENXIO; |
| 966 | goto exit_update_alc_vote; |
| 967 | } |
| 968 | |
| 969 | /* |
| 970 | * Add aggregation and mapping logic once LUT is avail. |
| 971 | * Use default values for time being. |
| 972 | */ |
| 973 | lnode->alc_idx[ACTIVE_CTX] = 12; |
| 974 | lnode->alc_idx[DUAL_CTX] = 0; |
| 975 | |
| 976 | for (i = 0; i < NUM_CTX; i++) |
| 977 | bcm_update_alc_req(dev_info, i); |
| 978 | |
| 979 | add_node_to_clist(dev_info); |
| 980 | |
| 981 | exit_update_alc_vote: |
| 982 | return ret; |
| 983 | } |
| 984 | |
| 985 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 986 | static int query_path(struct device *src_dev, int dest, uint64_t act_req_ib, |
| 987 | uint64_t act_req_bw, uint64_t slp_req_ib, |
| 988 | uint64_t slp_req_bw, uint64_t cur_ib, uint64_t cur_bw, |
| 989 | int src_idx) |
| 990 | { |
| 991 | struct device *next_dev = NULL; |
| 992 | struct link_node *lnode = NULL; |
| 993 | struct msm_bus_node_device_type *dev_info = NULL; |
| 994 | int curr_idx; |
| 995 | int ret = 0; |
| 996 | |
| 997 | if (IS_ERR_OR_NULL(src_dev)) { |
| 998 | MSM_BUS_ERR("%s: No source device", __func__); |
| 999 | ret = -ENODEV; |
| 1000 | goto exit_query_path; |
| 1001 | } |
| 1002 | |
| 1003 | next_dev = src_dev; |
| 1004 | |
| 1005 | if (src_idx < 0) { |
| 1006 | MSM_BUS_ERR("%s: Invalid lnode idx %d", __func__, src_idx); |
| 1007 | ret = -ENXIO; |
| 1008 | goto exit_query_path; |
| 1009 | } |
| 1010 | curr_idx = src_idx; |
| 1011 | |
| 1012 | while (next_dev) { |
| 1013 | int i; |
| 1014 | |
| 1015 | dev_info = to_msm_bus_node(next_dev); |
| 1016 | |
| 1017 | if (curr_idx >= dev_info->num_lnodes) { |
| 1018 | MSM_BUS_ERR("%s: Invalid lnode Idx %d num lnodes %d", |
| 1019 | __func__, curr_idx, dev_info->num_lnodes); |
| 1020 | ret = -ENXIO; |
| 1021 | goto exit_query_path; |
| 1022 | } |
| 1023 | |
| 1024 | lnode = &dev_info->lnode_list[curr_idx]; |
| 1025 | if (!lnode) { |
| 1026 | MSM_BUS_ERR("%s: Invalid lnode ptr lnode %d", |
| 1027 | __func__, curr_idx); |
| 1028 | ret = -ENXIO; |
| 1029 | goto exit_query_path; |
| 1030 | } |
| 1031 | lnode->lnode_query_ib[ACTIVE_CTX] = act_req_ib; |
| 1032 | lnode->lnode_query_ab[ACTIVE_CTX] = act_req_bw; |
| 1033 | lnode->lnode_query_ib[DUAL_CTX] = slp_req_ib; |
| 1034 | lnode->lnode_query_ab[DUAL_CTX] = slp_req_bw; |
| 1035 | |
| 1036 | for (i = 0; i < NUM_CTX; i++) { |
| 1037 | aggregate_bus_query_req(dev_info, i); |
| 1038 | bcm_query_bus_req(next_dev, i); |
| 1039 | } |
| 1040 | |
| 1041 | add_node_to_query_list(dev_info); |
| 1042 | |
| 1043 | next_dev = lnode->next_dev; |
| 1044 | curr_idx = lnode->next; |
| 1045 | } |
| 1046 | |
| 1047 | exit_query_path: |
| 1048 | return ret; |
| 1049 | } |
| 1050 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1051 | static int remove_path(struct device *src_dev, int dst, uint64_t cur_ib, |
| 1052 | uint64_t cur_ab, int src_idx, int active_only) |
| 1053 | { |
| 1054 | struct device *next_dev = NULL; |
| 1055 | struct link_node *lnode = NULL; |
| 1056 | struct msm_bus_node_device_type *dev_info = NULL; |
| 1057 | int ret = 0; |
| 1058 | int cur_idx = src_idx; |
| 1059 | int next_idx; |
| 1060 | |
| 1061 | /* Update the current path to zero out all request from |
| 1062 | * this cient on all paths |
| 1063 | */ |
| 1064 | if (!src_dev) { |
| 1065 | MSM_BUS_ERR("%s: Can't find source device", __func__); |
| 1066 | ret = -ENODEV; |
| 1067 | goto exit_remove_path; |
| 1068 | } |
| 1069 | |
| 1070 | ret = update_path(src_dev, dst, 0, 0, 0, 0, cur_ib, cur_ab, src_idx, |
| 1071 | active_only); |
| 1072 | if (ret) { |
| 1073 | MSM_BUS_ERR("%s: Error zeroing out path ctx %d", |
| 1074 | __func__, ACTIVE_CTX); |
| 1075 | goto exit_remove_path; |
| 1076 | } |
| 1077 | |
| 1078 | next_dev = src_dev; |
| 1079 | |
| 1080 | while (next_dev) { |
| 1081 | dev_info = to_msm_bus_node(next_dev); |
| 1082 | lnode = &dev_info->lnode_list[cur_idx]; |
| 1083 | next_idx = lnode->next; |
| 1084 | next_dev = lnode->next_dev; |
| 1085 | remove_lnode(dev_info, cur_idx); |
| 1086 | cur_idx = next_idx; |
| 1087 | } |
| 1088 | |
| 1089 | exit_remove_path: |
| 1090 | return ret; |
| 1091 | } |
| 1092 | |
| 1093 | static void getpath_debug(int src, int curr, int active_only) |
| 1094 | { |
| 1095 | struct device *dev_node; |
| 1096 | struct device *dev_it; |
| 1097 | unsigned int hop = 1; |
| 1098 | int idx; |
| 1099 | struct msm_bus_node_device_type *devinfo; |
| 1100 | int i; |
| 1101 | |
| 1102 | dev_node = bus_find_device(&msm_bus_type, NULL, |
| 1103 | (void *) &src, |
| 1104 | msm_bus_device_match_adhoc); |
| 1105 | |
| 1106 | if (!dev_node) { |
| 1107 | MSM_BUS_ERR("SRC NOT FOUND %d", src); |
| 1108 | return; |
| 1109 | } |
| 1110 | |
| 1111 | idx = curr; |
| 1112 | devinfo = to_msm_bus_node(dev_node); |
| 1113 | dev_it = dev_node; |
| 1114 | |
| 1115 | MSM_BUS_ERR("Route list Src %d", src); |
| 1116 | while (dev_it) { |
| 1117 | struct msm_bus_node_device_type *busdev = |
| 1118 | to_msm_bus_node(devinfo->node_info->bus_device); |
| 1119 | |
| 1120 | MSM_BUS_ERR("Hop[%d] at Device %d ctx %d", hop, |
| 1121 | devinfo->node_info->id, active_only); |
| 1122 | |
| 1123 | for (i = 0; i < NUM_CTX; i++) { |
| 1124 | MSM_BUS_ERR("dev info sel ib %llu", |
| 1125 | devinfo->node_bw[i].cur_clk_hz); |
| 1126 | MSM_BUS_ERR("dev info sel ab %llu", |
| 1127 | devinfo->node_bw[i].sum_ab); |
| 1128 | } |
| 1129 | |
| 1130 | dev_it = devinfo->lnode_list[idx].next_dev; |
| 1131 | idx = devinfo->lnode_list[idx].next; |
| 1132 | if (dev_it) |
| 1133 | devinfo = to_msm_bus_node(dev_it); |
| 1134 | |
| 1135 | MSM_BUS_ERR("Bus Device %d", busdev->node_info->id); |
| 1136 | MSM_BUS_ERR("Bus Clock %llu", busdev->clk[active_only].rate); |
| 1137 | |
| 1138 | if (idx < 0) |
| 1139 | break; |
| 1140 | hop++; |
| 1141 | } |
| 1142 | } |
| 1143 | |
| 1144 | static void unregister_client_adhoc(uint32_t cl) |
| 1145 | { |
| 1146 | int i; |
| 1147 | struct msm_bus_scale_pdata *pdata; |
| 1148 | int lnode, src, curr, dest; |
| 1149 | uint64_t cur_clk, cur_bw; |
| 1150 | struct msm_bus_client *client; |
| 1151 | struct device *src_dev; |
| 1152 | |
| 1153 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1154 | if (!cl) { |
| 1155 | MSM_BUS_ERR("%s: Null cl handle passed unregister\n", |
| 1156 | __func__); |
| 1157 | goto exit_unregister_client; |
| 1158 | } |
| 1159 | client = handle_list.cl_list[cl]; |
| 1160 | pdata = client->pdata; |
| 1161 | if (!pdata) { |
| 1162 | MSM_BUS_ERR("%s: Null pdata passed to unregister\n", |
| 1163 | __func__); |
| 1164 | goto exit_unregister_client; |
| 1165 | } |
| 1166 | |
| 1167 | curr = client->curr; |
| 1168 | if (curr >= pdata->num_usecases) { |
| 1169 | MSM_BUS_ERR("Invalid index Defaulting curr to 0"); |
| 1170 | curr = 0; |
| 1171 | } |
| 1172 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1173 | for (i = 0; i < pdata->usecase->num_paths; i++) { |
| 1174 | src = client->pdata->usecase[curr].vectors[i].src; |
| 1175 | dest = client->pdata->usecase[curr].vectors[i].dst; |
| 1176 | |
| 1177 | lnode = client->src_pnode[i]; |
| 1178 | src_dev = client->src_devs[i]; |
| 1179 | cur_clk = client->pdata->usecase[curr].vectors[i].ib; |
| 1180 | cur_bw = client->pdata->usecase[curr].vectors[i].ab; |
| 1181 | remove_path(src_dev, dest, cur_clk, cur_bw, lnode, |
| 1182 | pdata->active_only); |
| 1183 | } |
| 1184 | commit_data(); |
| 1185 | msm_bus_dbg_client_data(client->pdata, MSM_BUS_DBG_UNREGISTER, cl); |
| 1186 | kfree(client->src_pnode); |
| 1187 | kfree(client->src_devs); |
| 1188 | kfree(client); |
| 1189 | handle_list.cl_list[cl] = NULL; |
| 1190 | exit_unregister_client: |
| 1191 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1192 | } |
| 1193 | |
| 1194 | static int alloc_handle_lst(int size) |
| 1195 | { |
| 1196 | int ret = 0; |
| 1197 | struct msm_bus_client **t_cl_list; |
| 1198 | |
| 1199 | if (!handle_list.num_entries) { |
| 1200 | t_cl_list = kzalloc(sizeof(struct msm_bus_client *) |
| 1201 | * NUM_CL_HANDLES, GFP_KERNEL); |
| 1202 | if (ZERO_OR_NULL_PTR(t_cl_list)) { |
| 1203 | ret = -ENOMEM; |
| 1204 | MSM_BUS_ERR("%s: Failed to allocate handles list", |
| 1205 | __func__); |
| 1206 | goto exit_alloc_handle_lst; |
| 1207 | } |
| 1208 | handle_list.cl_list = t_cl_list; |
| 1209 | handle_list.num_entries += NUM_CL_HANDLES; |
| 1210 | } else { |
| 1211 | t_cl_list = krealloc(handle_list.cl_list, |
| 1212 | sizeof(struct msm_bus_client *) * |
| 1213 | (handle_list.num_entries + NUM_CL_HANDLES), |
| 1214 | GFP_KERNEL); |
| 1215 | if (ZERO_OR_NULL_PTR(t_cl_list)) { |
| 1216 | ret = -ENOMEM; |
| 1217 | MSM_BUS_ERR("%s: Failed to allocate handles list", |
| 1218 | __func__); |
| 1219 | goto exit_alloc_handle_lst; |
| 1220 | } |
| 1221 | |
| 1222 | handle_list.cl_list = t_cl_list; |
| 1223 | memset(&handle_list.cl_list[handle_list.num_entries], 0, |
| 1224 | NUM_CL_HANDLES * sizeof(struct msm_bus_client *)); |
| 1225 | handle_list.num_entries += NUM_CL_HANDLES; |
| 1226 | } |
| 1227 | exit_alloc_handle_lst: |
| 1228 | return ret; |
| 1229 | } |
| 1230 | |
| 1231 | static uint32_t gen_handle(struct msm_bus_client *client) |
| 1232 | { |
| 1233 | uint32_t handle = 0; |
| 1234 | int i; |
| 1235 | int ret = 0; |
| 1236 | |
| 1237 | for (i = 0; i < handle_list.num_entries; i++) { |
| 1238 | if (i && !handle_list.cl_list[i]) { |
| 1239 | handle = i; |
| 1240 | break; |
| 1241 | } |
| 1242 | } |
| 1243 | |
| 1244 | if (!handle) { |
| 1245 | ret = alloc_handle_lst(NUM_CL_HANDLES); |
| 1246 | |
| 1247 | if (ret) { |
| 1248 | MSM_BUS_ERR("%s: Failed to allocate handle list", |
| 1249 | __func__); |
| 1250 | goto exit_gen_handle; |
| 1251 | } |
| 1252 | handle = i + 1; |
| 1253 | } |
| 1254 | handle_list.cl_list[handle] = client; |
| 1255 | exit_gen_handle: |
| 1256 | return handle; |
| 1257 | } |
| 1258 | |
| 1259 | static uint32_t register_client_adhoc(struct msm_bus_scale_pdata *pdata) |
| 1260 | { |
| 1261 | int src, dest; |
| 1262 | int i; |
| 1263 | struct msm_bus_client *client = NULL; |
| 1264 | int *lnode; |
| 1265 | struct device *dev; |
| 1266 | uint32_t handle = 0; |
| 1267 | |
| 1268 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1269 | client = kzalloc(sizeof(struct msm_bus_client), GFP_KERNEL); |
| 1270 | if (!client) { |
| 1271 | MSM_BUS_ERR("%s: Error allocating client data", __func__); |
| 1272 | goto exit_register_client; |
| 1273 | } |
| 1274 | client->pdata = pdata; |
| 1275 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 1276 | if (pdata->alc) { |
| 1277 | client->curr = -1; |
| 1278 | lnode = kzalloc(sizeof(int), GFP_KERNEL); |
| 1279 | |
| 1280 | if (ZERO_OR_NULL_PTR(lnode)) { |
| 1281 | MSM_BUS_ERR("%s: Error allocating lnode!", __func__); |
| 1282 | goto exit_lnode_malloc_fail; |
| 1283 | } |
| 1284 | client->src_pnode = lnode; |
| 1285 | |
| 1286 | client->src_devs = kzalloc(sizeof(struct device *), |
| 1287 | GFP_KERNEL); |
| 1288 | if (IS_ERR_OR_NULL(client->src_devs)) { |
| 1289 | MSM_BUS_ERR("%s: Error allocating src_dev!", __func__); |
| 1290 | goto exit_src_dev_malloc_fail; |
| 1291 | } |
| 1292 | src = MSM_BUS_MAS_ALC; |
| 1293 | dev = bus_find_device(&msm_bus_type, NULL, |
| 1294 | (void *) &src, |
| 1295 | msm_bus_device_match_adhoc); |
| 1296 | if (IS_ERR_OR_NULL(dev)) { |
| 1297 | MSM_BUS_ERR("%s:Failed to find alc device", |
| 1298 | __func__); |
| 1299 | goto exit_invalid_data; |
| 1300 | } |
| 1301 | gen_lnode(dev, MSM_BUS_MAS_ALC, 0, pdata->name); |
| 1302 | bcm_add_bus_req(dev); |
| 1303 | |
| 1304 | client->src_devs[0] = dev; |
| 1305 | |
| 1306 | handle = gen_handle(client); |
| 1307 | goto exit_register_client; |
| 1308 | } |
| 1309 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1310 | lnode = kcalloc(pdata->usecase->num_paths, sizeof(int), GFP_KERNEL); |
| 1311 | if (ZERO_OR_NULL_PTR(lnode)) { |
| 1312 | MSM_BUS_ERR("%s: Error allocating pathnode ptr!", __func__); |
| 1313 | goto exit_lnode_malloc_fail; |
| 1314 | } |
| 1315 | client->src_pnode = lnode; |
| 1316 | |
| 1317 | client->src_devs = kcalloc(pdata->usecase->num_paths, |
| 1318 | sizeof(struct device *), GFP_KERNEL); |
| 1319 | if (IS_ERR_OR_NULL(client->src_devs)) { |
| 1320 | MSM_BUS_ERR("%s: Error allocating pathnode ptr!", __func__); |
| 1321 | goto exit_src_dev_malloc_fail; |
| 1322 | } |
| 1323 | client->curr = -1; |
| 1324 | |
| 1325 | for (i = 0; i < pdata->usecase->num_paths; i++) { |
| 1326 | src = pdata->usecase->vectors[i].src; |
| 1327 | dest = pdata->usecase->vectors[i].dst; |
| 1328 | |
| 1329 | if ((src < 0) || (dest < 0)) { |
| 1330 | MSM_BUS_ERR("%s:Invalid src/dst.src %d dest %d", |
| 1331 | __func__, src, dest); |
| 1332 | goto exit_invalid_data; |
| 1333 | } |
| 1334 | dev = bus_find_device(&msm_bus_type, NULL, |
| 1335 | (void *) &src, |
| 1336 | msm_bus_device_match_adhoc); |
| 1337 | if (IS_ERR_OR_NULL(dev)) { |
| 1338 | MSM_BUS_ERR("%s:Failed to find path.src %d dest %d", |
| 1339 | __func__, src, dest); |
| 1340 | goto exit_invalid_data; |
| 1341 | } |
| 1342 | client->src_devs[i] = dev; |
| 1343 | |
| 1344 | MSM_BUS_ERR("%s:find path.src %d dest %d", |
| 1345 | __func__, src, dest); |
| 1346 | |
| 1347 | lnode[i] = getpath(dev, dest, client->pdata->name); |
| 1348 | if (lnode[i] < 0) { |
| 1349 | MSM_BUS_ERR("%s:Failed to find path.src %d dest %d", |
| 1350 | __func__, src, dest); |
| 1351 | goto exit_invalid_data; |
| 1352 | } |
| 1353 | } |
| 1354 | |
| 1355 | handle = gen_handle(client); |
| 1356 | msm_bus_dbg_client_data(client->pdata, MSM_BUS_DBG_REGISTER, |
| 1357 | handle); |
| 1358 | MSM_BUS_ERR("%s:Client handle %d %s", __func__, handle, |
| 1359 | client->pdata->name); |
| 1360 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1361 | return handle; |
| 1362 | exit_invalid_data: |
| 1363 | kfree(client->src_devs); |
| 1364 | exit_src_dev_malloc_fail: |
| 1365 | kfree(lnode); |
| 1366 | exit_lnode_malloc_fail: |
| 1367 | kfree(client); |
| 1368 | exit_register_client: |
| 1369 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1370 | return handle; |
| 1371 | } |
| 1372 | |
| 1373 | static int update_client_paths(struct msm_bus_client *client, bool log_trns, |
| 1374 | unsigned int idx) |
| 1375 | { |
| 1376 | int lnode, src, dest, cur_idx; |
| 1377 | uint64_t req_clk, req_bw, curr_clk, curr_bw, slp_clk, slp_bw; |
| 1378 | int i, ret = 0; |
| 1379 | struct msm_bus_scale_pdata *pdata; |
| 1380 | struct device *src_dev; |
| 1381 | |
| 1382 | if (!client) { |
| 1383 | MSM_BUS_ERR("Client handle Null"); |
| 1384 | ret = -ENXIO; |
| 1385 | goto exit_update_client_paths; |
| 1386 | } |
| 1387 | |
| 1388 | pdata = client->pdata; |
| 1389 | if (!pdata) { |
| 1390 | MSM_BUS_ERR("Client pdata Null"); |
| 1391 | ret = -ENXIO; |
| 1392 | goto exit_update_client_paths; |
| 1393 | } |
| 1394 | |
| 1395 | cur_idx = client->curr; |
| 1396 | client->curr = idx; |
| 1397 | for (i = 0; i < pdata->usecase->num_paths; i++) { |
| 1398 | src = pdata->usecase[idx].vectors[i].src; |
| 1399 | dest = pdata->usecase[idx].vectors[i].dst; |
| 1400 | |
| 1401 | lnode = client->src_pnode[i]; |
| 1402 | src_dev = client->src_devs[i]; |
| 1403 | req_clk = client->pdata->usecase[idx].vectors[i].ib; |
| 1404 | req_bw = client->pdata->usecase[idx].vectors[i].ab; |
| 1405 | if (cur_idx < 0) { |
| 1406 | curr_clk = 0; |
| 1407 | curr_bw = 0; |
| 1408 | } else { |
| 1409 | curr_clk = |
| 1410 | client->pdata->usecase[cur_idx].vectors[i].ib; |
| 1411 | curr_bw = client->pdata->usecase[cur_idx].vectors[i].ab; |
| 1412 | MSM_BUS_DBG("%s:ab: %llu ib: %llu\n", __func__, |
| 1413 | curr_bw, curr_clk); |
| 1414 | } |
| 1415 | |
| 1416 | if (pdata->active_only) { |
| 1417 | slp_clk = 0; |
| 1418 | slp_bw = 0; |
| 1419 | } else { |
| 1420 | slp_clk = req_clk; |
| 1421 | slp_bw = req_bw; |
David Dai | 0d01443 | 2016-11-10 12:57:44 -0800 | [diff] [blame] | 1422 | req_clk = 0; |
| 1423 | req_bw = 0; |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1424 | } |
| 1425 | |
| 1426 | ret = update_path(src_dev, dest, req_clk, req_bw, slp_clk, |
| 1427 | slp_bw, curr_clk, curr_bw, lnode, pdata->active_only); |
| 1428 | |
| 1429 | if (ret) { |
| 1430 | MSM_BUS_ERR("%s: Update path failed! %d ctx %d\n", |
| 1431 | __func__, ret, pdata->active_only); |
| 1432 | goto exit_update_client_paths; |
| 1433 | } |
| 1434 | |
| 1435 | if (log_trns) |
| 1436 | getpath_debug(src, lnode, pdata->active_only); |
| 1437 | } |
| 1438 | commit_data(); |
| 1439 | exit_update_client_paths: |
| 1440 | return ret; |
| 1441 | } |
| 1442 | |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 1443 | static int update_client_alc(struct msm_bus_client *client, bool log_trns, |
| 1444 | unsigned int idx) |
| 1445 | { |
| 1446 | int lnode, cur_idx; |
| 1447 | uint64_t req_idle_time, req_fal, dual_idle_time, dual_fal, |
| 1448 | cur_idle_time, cur_fal; |
| 1449 | int ret = 0; |
| 1450 | struct msm_bus_scale_pdata *pdata; |
| 1451 | struct device *src_dev; |
| 1452 | |
| 1453 | if (!client) { |
| 1454 | MSM_BUS_ERR("Client handle Null"); |
| 1455 | ret = -ENXIO; |
| 1456 | goto exit_update_client_alc; |
| 1457 | } |
| 1458 | |
| 1459 | pdata = client->pdata; |
| 1460 | if (!pdata) { |
| 1461 | MSM_BUS_ERR("Client pdata Null"); |
| 1462 | ret = -ENXIO; |
| 1463 | goto exit_update_client_alc; |
| 1464 | } |
| 1465 | |
| 1466 | cur_idx = client->curr; |
| 1467 | client->curr = idx; |
| 1468 | req_fal = pdata->usecase_lat[idx].fal_ns; |
| 1469 | req_idle_time = pdata->usecase_lat[idx].idle_t_ns; |
| 1470 | lnode = client->src_pnode[0]; |
| 1471 | src_dev = client->src_devs[0]; |
| 1472 | |
| 1473 | if (pdata->active_only) { |
| 1474 | dual_fal = 0; |
| 1475 | dual_idle_time = 0; |
| 1476 | } else { |
| 1477 | dual_fal = req_fal; |
| 1478 | dual_idle_time = req_idle_time; |
| 1479 | } |
| 1480 | |
| 1481 | ret = update_alc_vote(src_dev, req_fal, req_idle_time, dual_fal, |
| 1482 | dual_idle_time, cur_fal, cur_idle_time, lnode, |
| 1483 | pdata->active_only); |
| 1484 | |
| 1485 | if (ret) { |
| 1486 | MSM_BUS_ERR("%s: Update path failed! %d ctx %d\n", |
| 1487 | __func__, ret, pdata->active_only); |
| 1488 | goto exit_update_client_alc; |
| 1489 | } |
| 1490 | commit_data(); |
| 1491 | exit_update_client_alc: |
| 1492 | return ret; |
| 1493 | } |
| 1494 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 1495 | static int query_usecase(struct msm_bus_client *client, bool log_trns, |
| 1496 | unsigned int idx, |
| 1497 | struct msm_bus_tcs_usecase *tcs_usecase) |
| 1498 | { |
| 1499 | int lnode, src, dest, cur_idx; |
David Dai | 489b0d7 | 2017-03-14 13:05:01 -0700 | [diff] [blame] | 1500 | uint64_t req_clk, req_bw, curr_clk, curr_bw; |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 1501 | int i, ret = 0; |
| 1502 | struct msm_bus_scale_pdata *pdata; |
| 1503 | struct device *src_dev; |
| 1504 | struct msm_bus_node_device_type *node = NULL; |
| 1505 | struct msm_bus_node_device_type *node_tmp = NULL; |
| 1506 | |
| 1507 | if (!client) { |
| 1508 | MSM_BUS_ERR("Client handle Null"); |
| 1509 | ret = -ENXIO; |
| 1510 | goto exit_query_usecase; |
| 1511 | } |
| 1512 | |
| 1513 | pdata = client->pdata; |
| 1514 | if (!pdata) { |
| 1515 | MSM_BUS_ERR("Client pdata Null"); |
| 1516 | ret = -ENXIO; |
| 1517 | goto exit_query_usecase; |
| 1518 | } |
| 1519 | |
| 1520 | cur_idx = client->curr; |
| 1521 | client->curr = idx; |
| 1522 | for (i = 0; i < pdata->usecase->num_paths; i++) { |
| 1523 | src = pdata->usecase[idx].vectors[i].src; |
| 1524 | dest = pdata->usecase[idx].vectors[i].dst; |
| 1525 | |
| 1526 | lnode = client->src_pnode[i]; |
| 1527 | src_dev = client->src_devs[i]; |
| 1528 | req_clk = client->pdata->usecase[idx].vectors[i].ib; |
| 1529 | req_bw = client->pdata->usecase[idx].vectors[i].ab; |
| 1530 | if (cur_idx < 0) { |
| 1531 | curr_clk = 0; |
| 1532 | curr_bw = 0; |
| 1533 | } else { |
| 1534 | curr_clk = |
| 1535 | client->pdata->usecase[cur_idx].vectors[i].ib; |
| 1536 | curr_bw = client->pdata->usecase[cur_idx].vectors[i].ab; |
| 1537 | MSM_BUS_DBG("%s:ab: %llu ib: %llu\n", __func__, |
| 1538 | curr_bw, curr_clk); |
| 1539 | } |
| 1540 | |
David Dai | 489b0d7 | 2017-03-14 13:05:01 -0700 | [diff] [blame] | 1541 | ret = query_path(src_dev, dest, req_clk, req_bw, 0, |
| 1542 | 0, curr_clk, curr_bw, lnode); |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 1543 | |
| 1544 | if (ret) { |
| 1545 | MSM_BUS_ERR("%s: Query path failed! %d ctx %d\n", |
| 1546 | __func__, ret, pdata->active_only); |
| 1547 | goto exit_query_usecase; |
| 1548 | } |
| 1549 | } |
| 1550 | msm_bus_query_gen(&query_list, tcs_usecase); |
| 1551 | INIT_LIST_HEAD(&query_list); |
| 1552 | |
| 1553 | for (i = 0; i < pdata->usecase->num_paths; i++) { |
| 1554 | src = pdata->usecase[idx].vectors[i].src; |
| 1555 | dest = pdata->usecase[idx].vectors[i].dst; |
| 1556 | |
| 1557 | lnode = client->src_pnode[i]; |
| 1558 | src_dev = client->src_devs[i]; |
| 1559 | |
| 1560 | ret = query_path(src_dev, dest, 0, 0, 0, 0, |
| 1561 | curr_clk, curr_bw, lnode); |
| 1562 | |
| 1563 | if (ret) { |
| 1564 | MSM_BUS_ERR("%s: Clear query path failed! %d ctx %d\n", |
| 1565 | __func__, ret, pdata->active_only); |
| 1566 | goto exit_query_usecase; |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | list_for_each_entry_safe(node, node_tmp, &query_list, query_link) { |
| 1571 | node->query_dirty = false; |
| 1572 | list_del_init(&node->query_link); |
| 1573 | } |
| 1574 | |
| 1575 | INIT_LIST_HEAD(&query_list); |
| 1576 | |
| 1577 | exit_query_usecase: |
| 1578 | return ret; |
| 1579 | } |
| 1580 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1581 | static int update_context(uint32_t cl, bool active_only, |
| 1582 | unsigned int ctx_idx) |
| 1583 | { |
| 1584 | int ret = 0; |
| 1585 | struct msm_bus_scale_pdata *pdata; |
| 1586 | struct msm_bus_client *client; |
| 1587 | |
| 1588 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1589 | if (!cl) { |
| 1590 | MSM_BUS_ERR("%s: Invalid client handle %d", __func__, cl); |
| 1591 | ret = -ENXIO; |
| 1592 | goto exit_update_context; |
| 1593 | } |
| 1594 | |
| 1595 | client = handle_list.cl_list[cl]; |
| 1596 | if (!client) { |
| 1597 | ret = -ENXIO; |
| 1598 | goto exit_update_context; |
| 1599 | } |
| 1600 | |
| 1601 | pdata = client->pdata; |
| 1602 | if (!pdata) { |
| 1603 | ret = -ENXIO; |
| 1604 | goto exit_update_context; |
| 1605 | } |
| 1606 | if (pdata->active_only == active_only) { |
| 1607 | MSM_BUS_ERR("No change in context(%d==%d), skip\n", |
| 1608 | pdata->active_only, active_only); |
| 1609 | ret = -ENXIO; |
| 1610 | goto exit_update_context; |
| 1611 | } |
| 1612 | |
| 1613 | if (ctx_idx >= pdata->num_usecases) { |
| 1614 | MSM_BUS_ERR("Client %u passed invalid index: %d\n", |
| 1615 | cl, ctx_idx); |
| 1616 | ret = -ENXIO; |
| 1617 | goto exit_update_context; |
| 1618 | } |
| 1619 | |
| 1620 | pdata->active_only = active_only; |
| 1621 | |
| 1622 | msm_bus_dbg_client_data(client->pdata, ctx_idx, cl); |
| 1623 | ret = update_client_paths(client, false, ctx_idx); |
| 1624 | if (ret) { |
| 1625 | pr_err("%s: Err updating path\n", __func__); |
| 1626 | goto exit_update_context; |
| 1627 | } |
| 1628 | |
| 1629 | // trace_bus_update_request_end(pdata->name); |
| 1630 | |
| 1631 | exit_update_context: |
| 1632 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1633 | return ret; |
| 1634 | } |
| 1635 | |
| 1636 | static int update_request_adhoc(uint32_t cl, unsigned int index) |
| 1637 | { |
| 1638 | int ret = 0; |
| 1639 | struct msm_bus_scale_pdata *pdata; |
| 1640 | struct msm_bus_client *client; |
| 1641 | const char *test_cl = "Null"; |
| 1642 | bool log_transaction = false; |
| 1643 | |
| 1644 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1645 | |
| 1646 | if (!cl) { |
| 1647 | MSM_BUS_ERR("%s: Invalid client handle %d", __func__, cl); |
| 1648 | ret = -ENXIO; |
| 1649 | goto exit_update_request; |
| 1650 | } |
| 1651 | |
| 1652 | client = handle_list.cl_list[cl]; |
| 1653 | if (!client) { |
| 1654 | MSM_BUS_ERR("%s: Invalid client pointer ", __func__); |
| 1655 | ret = -ENXIO; |
| 1656 | goto exit_update_request; |
| 1657 | } |
| 1658 | |
| 1659 | pdata = client->pdata; |
| 1660 | if (!pdata) { |
| 1661 | MSM_BUS_ERR("%s: Client data Null.[client didn't register]", |
| 1662 | __func__); |
| 1663 | ret = -ENXIO; |
| 1664 | goto exit_update_request; |
| 1665 | } |
| 1666 | |
| 1667 | if (index >= pdata->num_usecases) { |
| 1668 | MSM_BUS_ERR("Client %u passed invalid index: %d\n", |
| 1669 | cl, index); |
| 1670 | ret = -ENXIO; |
| 1671 | goto exit_update_request; |
| 1672 | } |
| 1673 | |
| 1674 | if (client->curr == index) { |
| 1675 | MSM_BUS_DBG("%s: Not updating client request idx %d unchanged", |
| 1676 | __func__, index); |
| 1677 | goto exit_update_request; |
| 1678 | } |
| 1679 | |
| 1680 | if (!strcmp(test_cl, pdata->name)) |
| 1681 | log_transaction = true; |
| 1682 | |
| 1683 | MSM_BUS_DBG("%s: cl: %u index: %d curr: %d num_paths: %d\n", __func__, |
| 1684 | cl, index, client->curr, client->pdata->usecase->num_paths); |
David Dai | bee6623 | 2017-03-31 19:05:39 -0700 | [diff] [blame] | 1685 | |
| 1686 | if (pdata->alc) |
| 1687 | ret = update_client_alc(client, log_transaction, index); |
| 1688 | else { |
| 1689 | msm_bus_dbg_client_data(client->pdata, index, cl); |
| 1690 | ret = update_client_paths(client, log_transaction, index); |
| 1691 | } |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1692 | if (ret) { |
| 1693 | pr_err("%s: Err updating path\n", __func__); |
| 1694 | goto exit_update_request; |
| 1695 | } |
| 1696 | |
| 1697 | // trace_bus_update_request_end(pdata->name); |
| 1698 | |
| 1699 | exit_update_request: |
| 1700 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1701 | return ret; |
| 1702 | } |
| 1703 | |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 1704 | static int query_client_usecase(struct msm_bus_tcs_usecase *tcs_usecase, |
| 1705 | uint32_t cl, unsigned int index) |
| 1706 | { |
| 1707 | int ret = 0; |
| 1708 | struct msm_bus_scale_pdata *pdata; |
| 1709 | struct msm_bus_client *client; |
| 1710 | const char *test_cl = "Null"; |
| 1711 | bool log_transaction = false; |
| 1712 | |
| 1713 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1714 | |
| 1715 | if (!cl) { |
| 1716 | MSM_BUS_ERR("%s: Invalid client handle %d", __func__, cl); |
| 1717 | ret = -ENXIO; |
| 1718 | goto exit_query_client_usecase; |
| 1719 | } |
| 1720 | |
| 1721 | client = handle_list.cl_list[cl]; |
| 1722 | if (!client) { |
| 1723 | MSM_BUS_ERR("%s: Invalid client pointer ", __func__); |
| 1724 | ret = -ENXIO; |
| 1725 | goto exit_query_client_usecase; |
| 1726 | } |
| 1727 | |
| 1728 | pdata = client->pdata; |
| 1729 | if (!pdata) { |
| 1730 | MSM_BUS_ERR("%s: Client data Null.[client didn't register]", |
| 1731 | __func__); |
| 1732 | ret = -ENXIO; |
| 1733 | goto exit_query_client_usecase; |
| 1734 | } |
| 1735 | |
| 1736 | if (index >= pdata->num_usecases) { |
| 1737 | MSM_BUS_ERR("Client %u passed invalid index: %d\n", |
| 1738 | cl, index); |
| 1739 | ret = -ENXIO; |
| 1740 | goto exit_query_client_usecase; |
| 1741 | } |
| 1742 | |
| 1743 | if (!strcmp(test_cl, pdata->name)) |
| 1744 | log_transaction = true; |
| 1745 | |
| 1746 | MSM_BUS_DBG("%s: cl: %u index: %d curr: %d num_paths: %d\n", __func__, |
| 1747 | cl, index, client->curr, client->pdata->usecase->num_paths); |
| 1748 | ret = query_usecase(client, log_transaction, index, tcs_usecase); |
| 1749 | if (ret) { |
| 1750 | pr_err("%s: Err updating path\n", __func__); |
| 1751 | goto exit_query_client_usecase; |
| 1752 | } |
| 1753 | |
| 1754 | // trace_bus_update_request_end(pdata->name); |
| 1755 | |
| 1756 | exit_query_client_usecase: |
| 1757 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1758 | return ret; |
| 1759 | } |
| 1760 | |
| 1761 | static int query_client_usecase_all(struct msm_bus_tcs_handle *tcs_handle, |
| 1762 | uint32_t cl) |
| 1763 | { |
| 1764 | int ret = 0; |
| 1765 | struct msm_bus_scale_pdata *pdata; |
| 1766 | struct msm_bus_client *client; |
| 1767 | const char *test_cl = "Null"; |
| 1768 | bool log_transaction = false; |
| 1769 | int i = 0; |
| 1770 | |
| 1771 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1772 | |
| 1773 | if (!cl) { |
| 1774 | MSM_BUS_ERR("%s: Invalid client handle %d", __func__, cl); |
| 1775 | ret = -ENXIO; |
| 1776 | goto exit_query_client_usecase_all; |
| 1777 | } |
| 1778 | |
| 1779 | client = handle_list.cl_list[cl]; |
| 1780 | if (!client) { |
| 1781 | MSM_BUS_ERR("%s: Invalid client pointer ", __func__); |
| 1782 | ret = -ENXIO; |
| 1783 | goto exit_query_client_usecase_all; |
| 1784 | } |
| 1785 | |
| 1786 | pdata = client->pdata; |
| 1787 | if (!pdata) { |
| 1788 | MSM_BUS_ERR("%s: Client data Null.[client didn't register]", |
| 1789 | __func__); |
| 1790 | ret = -ENXIO; |
| 1791 | goto exit_query_client_usecase_all; |
| 1792 | } |
| 1793 | |
| 1794 | if (!strcmp(test_cl, pdata->name)) |
| 1795 | log_transaction = true; |
| 1796 | |
| 1797 | MSM_BUS_ERR("%s: query_start", __func__); |
| 1798 | for (i = 0; i < pdata->num_usecases; i++) |
| 1799 | query_usecase(client, log_transaction, i, |
| 1800 | &tcs_handle->usecases[i]); |
| 1801 | tcs_handle->num_usecases = pdata->num_usecases; |
| 1802 | |
| 1803 | if (ret) { |
| 1804 | pr_err("%s: Err updating path\n", __func__); |
| 1805 | goto exit_query_client_usecase_all; |
| 1806 | } |
| 1807 | |
| 1808 | // trace_bus_update_request_end(pdata->name); |
| 1809 | |
| 1810 | exit_query_client_usecase_all: |
| 1811 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1812 | return ret; |
| 1813 | } |
| 1814 | |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1815 | static void free_cl_mem(struct msm_bus_client_handle *cl) |
| 1816 | { |
| 1817 | if (cl) { |
| 1818 | kfree(cl->name); |
| 1819 | kfree(cl); |
| 1820 | cl = NULL; |
| 1821 | } |
| 1822 | } |
| 1823 | |
| 1824 | static int update_bw_adhoc(struct msm_bus_client_handle *cl, u64 ab, u64 ib) |
| 1825 | { |
| 1826 | int ret = 0; |
| 1827 | char *test_cl = "test-client"; |
| 1828 | bool log_transaction = false; |
| 1829 | u64 slp_ib, slp_ab; |
| 1830 | |
| 1831 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1832 | |
| 1833 | if (!cl) { |
| 1834 | MSM_BUS_ERR("%s: Invalid client handle %p", __func__, cl); |
| 1835 | ret = -ENXIO; |
| 1836 | goto exit_update_request; |
| 1837 | } |
| 1838 | |
| 1839 | if (!strcmp(test_cl, cl->name)) |
| 1840 | log_transaction = true; |
| 1841 | |
| 1842 | msm_bus_dbg_rec_transaction(cl, ab, ib); |
| 1843 | |
| 1844 | if ((cl->cur_act_ib == ib) && (cl->cur_act_ab == ab)) { |
| 1845 | MSM_BUS_DBG("%s:no change in request", cl->name); |
| 1846 | goto exit_update_request; |
| 1847 | } |
| 1848 | |
| 1849 | if (cl->active_only) { |
| 1850 | slp_ib = 0; |
| 1851 | slp_ab = 0; |
| 1852 | } else { |
| 1853 | slp_ib = ib; |
| 1854 | slp_ab = ab; |
| 1855 | } |
| 1856 | |
| 1857 | ret = update_path(cl->mas_dev, cl->slv, ib, ab, slp_ib, slp_ab, |
| 1858 | cl->cur_act_ib, cl->cur_act_ab, cl->first_hop, cl->active_only); |
| 1859 | |
| 1860 | if (ret) { |
| 1861 | MSM_BUS_ERR("%s: Update path failed! %d active_only %d\n", |
| 1862 | __func__, ret, cl->active_only); |
| 1863 | goto exit_update_request; |
| 1864 | } |
| 1865 | |
| 1866 | commit_data(); |
| 1867 | cl->cur_act_ib = ib; |
| 1868 | cl->cur_act_ab = ab; |
| 1869 | cl->cur_slp_ib = slp_ib; |
| 1870 | cl->cur_slp_ab = slp_ab; |
| 1871 | |
| 1872 | if (log_transaction) |
| 1873 | getpath_debug(cl->mas, cl->first_hop, cl->active_only); |
| 1874 | // trace_bus_update_request_end(cl->name); |
| 1875 | exit_update_request: |
| 1876 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1877 | |
| 1878 | return ret; |
| 1879 | } |
| 1880 | |
| 1881 | static int update_bw_context(struct msm_bus_client_handle *cl, u64 act_ab, |
| 1882 | u64 act_ib, u64 slp_ib, u64 slp_ab) |
| 1883 | { |
| 1884 | int ret = 0; |
| 1885 | |
| 1886 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1887 | if (!cl) { |
| 1888 | MSM_BUS_ERR("Invalid client handle %p", cl); |
| 1889 | ret = -ENXIO; |
| 1890 | goto exit_change_context; |
| 1891 | } |
| 1892 | |
| 1893 | if ((cl->cur_act_ib == act_ib) && |
| 1894 | (cl->cur_act_ab == act_ab) && |
| 1895 | (cl->cur_slp_ib == slp_ib) && |
| 1896 | (cl->cur_slp_ab == slp_ab)) { |
| 1897 | MSM_BUS_ERR("No change in vote"); |
| 1898 | goto exit_change_context; |
| 1899 | } |
| 1900 | |
| 1901 | if (!slp_ab && !slp_ib) |
| 1902 | cl->active_only = true; |
| 1903 | msm_bus_dbg_rec_transaction(cl, cl->cur_act_ab, cl->cur_slp_ib); |
| 1904 | ret = update_path(cl->mas_dev, cl->slv, act_ib, act_ab, slp_ib, slp_ab, |
| 1905 | cl->cur_act_ab, cl->cur_act_ab, cl->first_hop, |
| 1906 | cl->active_only); |
| 1907 | if (ret) { |
| 1908 | MSM_BUS_ERR("%s: Update path failed! %d active_only %d\n", |
| 1909 | __func__, ret, cl->active_only); |
| 1910 | goto exit_change_context; |
| 1911 | } |
| 1912 | commit_data(); |
| 1913 | cl->cur_act_ib = act_ib; |
| 1914 | cl->cur_act_ab = act_ab; |
| 1915 | cl->cur_slp_ib = slp_ib; |
| 1916 | cl->cur_slp_ab = slp_ab; |
| 1917 | // trace_bus_update_request_end(cl->name); |
| 1918 | exit_change_context: |
| 1919 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1920 | return ret; |
| 1921 | } |
| 1922 | |
| 1923 | static void unregister_adhoc(struct msm_bus_client_handle *cl) |
| 1924 | { |
| 1925 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1926 | if (!cl) { |
| 1927 | MSM_BUS_ERR("%s: Null cl handle passed unregister\n", |
| 1928 | __func__); |
| 1929 | goto exit_unregister_client; |
| 1930 | } |
| 1931 | |
| 1932 | MSM_BUS_DBG("%s: Unregistering client %p", __func__, cl); |
| 1933 | |
| 1934 | remove_path(cl->mas_dev, cl->slv, cl->cur_act_ib, cl->cur_act_ab, |
| 1935 | cl->first_hop, cl->active_only); |
| 1936 | commit_data(); |
| 1937 | msm_bus_dbg_remove_client(cl); |
| 1938 | kfree(cl); |
David Dai | 0d01443 | 2016-11-10 12:57:44 -0800 | [diff] [blame] | 1939 | MSM_BUS_DBG("%s: Unregistered client", __func__); |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 1940 | exit_unregister_client: |
| 1941 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 1942 | } |
| 1943 | |
| 1944 | static struct msm_bus_client_handle* |
| 1945 | register_adhoc(uint32_t mas, uint32_t slv, char *name, bool active_only) |
| 1946 | { |
| 1947 | struct msm_bus_client_handle *client = NULL; |
| 1948 | int len = 0; |
| 1949 | |
| 1950 | rt_mutex_lock(&msm_bus_adhoc_lock); |
| 1951 | |
| 1952 | if (!(mas && slv && name)) { |
| 1953 | pr_err("%s: Error: src dst name num_paths are required", |
| 1954 | __func__); |
| 1955 | goto exit_register; |
| 1956 | } |
| 1957 | |
| 1958 | client = kzalloc(sizeof(struct msm_bus_client_handle), GFP_KERNEL); |
| 1959 | if (!client) { |
| 1960 | MSM_BUS_ERR("%s: Error allocating client data", __func__); |
| 1961 | goto exit_register; |
| 1962 | } |
| 1963 | |
| 1964 | len = strnlen(name, MAX_STR_CL); |
| 1965 | client->name = kzalloc((len + 1), GFP_KERNEL); |
| 1966 | if (!client->name) { |
| 1967 | MSM_BUS_ERR("%s: Error allocating client name buf", __func__); |
| 1968 | free_cl_mem(client); |
| 1969 | goto exit_register; |
| 1970 | } |
| 1971 | strlcpy(client->name, name, MAX_STR_CL); |
| 1972 | client->active_only = active_only; |
| 1973 | |
| 1974 | client->mas = mas; |
| 1975 | client->slv = slv; |
| 1976 | |
| 1977 | client->mas_dev = bus_find_device(&msm_bus_type, NULL, |
| 1978 | (void *) &mas, |
| 1979 | msm_bus_device_match_adhoc); |
| 1980 | if (IS_ERR_OR_NULL(client->mas_dev)) { |
| 1981 | MSM_BUS_ERR("%s:Failed to find path.src %d dest %d", |
| 1982 | __func__, client->mas, client->slv); |
| 1983 | free_cl_mem(client); |
| 1984 | goto exit_register; |
| 1985 | } |
| 1986 | |
| 1987 | client->first_hop = getpath(client->mas_dev, client->slv, client->name); |
| 1988 | if (client->first_hop < 0) { |
| 1989 | MSM_BUS_ERR("%s:Failed to find path.src %d dest %d", |
| 1990 | __func__, client->mas, client->slv); |
| 1991 | free_cl_mem(client); |
| 1992 | goto exit_register; |
| 1993 | } |
| 1994 | |
| 1995 | MSM_BUS_DBG("%s:Client handle %p %s", __func__, client, |
| 1996 | client->name); |
| 1997 | msm_bus_dbg_add_client(client); |
| 1998 | exit_register: |
| 1999 | rt_mutex_unlock(&msm_bus_adhoc_lock); |
| 2000 | return client; |
| 2001 | } |
| 2002 | /** |
| 2003 | * msm_bus_arb_setops_adhoc() : Setup the bus arbitration ops |
| 2004 | * @ arb_ops: pointer to the arb ops. |
| 2005 | */ |
| 2006 | void msm_bus_arb_setops_adhoc(struct msm_bus_arb_ops *arb_ops) |
| 2007 | { |
| 2008 | arb_ops->register_client = register_client_adhoc; |
| 2009 | arb_ops->update_request = update_request_adhoc; |
| 2010 | arb_ops->unregister_client = unregister_client_adhoc; |
| 2011 | arb_ops->update_context = update_context; |
| 2012 | |
| 2013 | arb_ops->register_cl = register_adhoc; |
| 2014 | arb_ops->unregister = unregister_adhoc; |
| 2015 | arb_ops->update_bw = update_bw_adhoc; |
| 2016 | arb_ops->update_bw_context = update_bw_context; |
David Dai | 9d66f3f | 2016-11-23 15:33:06 -0800 | [diff] [blame] | 2017 | arb_ops->query_usecase = query_client_usecase; |
| 2018 | arb_ops->query_usecase_all = query_client_usecase_all; |
David Dai | 04ce420 | 2016-09-26 16:24:13 -0700 | [diff] [blame] | 2019 | } |