1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * (C) COPYRIGHT 2018 ARM Limited. All rights reserved. 4 * Author: James.Qian.Wang <james.qian.wang@arm.com> 5 * 6 */ 7 #include <drm/drm_print.h> 8 9 #include "komeda_dev.h" 10 #include "komeda_pipeline.h" 11 12 /** komeda_pipeline_add - Add a pipeline to &komeda_dev */ 13 struct komeda_pipeline * 14 komeda_pipeline_add(struct komeda_dev *mdev, size_t size, 15 const struct komeda_pipeline_funcs *funcs) 16 { 17 struct komeda_pipeline *pipe; 18 19 if (mdev->n_pipelines + 1 > KOMEDA_MAX_PIPELINES) { 20 DRM_ERROR("Exceed max support %d pipelines.\n", 21 KOMEDA_MAX_PIPELINES); 22 return ERR_PTR(-ENOSPC); 23 } 24 25 if (size < sizeof(*pipe)) { 26 DRM_ERROR("Request pipeline size too small.\n"); 27 return ERR_PTR(-EINVAL); 28 } 29 30 pipe = devm_kzalloc(mdev->dev, size, GFP_KERNEL); 31 if (!pipe) 32 return ERR_PTR(-ENOMEM); 33 34 pipe->mdev = mdev; 35 pipe->id = mdev->n_pipelines; 36 pipe->funcs = funcs; 37 38 mdev->pipelines[mdev->n_pipelines] = pipe; 39 mdev->n_pipelines++; 40 41 return pipe; 42 } 43 44 void komeda_pipeline_destroy(struct komeda_dev *mdev, 45 struct komeda_pipeline *pipe) 46 { 47 struct komeda_component *c; 48 int i; 49 50 dp_for_each_set_bit(i, pipe->avail_comps) { 51 c = komeda_pipeline_get_component(pipe, i); 52 komeda_component_destroy(mdev, c); 53 } 54 55 clk_put(pipe->pxlclk); 56 57 of_node_put(pipe->of_output_links[0]); 58 of_node_put(pipe->of_output_links[1]); 59 of_node_put(pipe->of_output_port); 60 of_node_put(pipe->of_node); 61 62 devm_kfree(mdev->dev, pipe); 63 } 64 65 static struct komeda_component ** 66 komeda_pipeline_get_component_pos(struct komeda_pipeline *pipe, int id) 67 { 68 struct komeda_dev *mdev = pipe->mdev; 69 struct komeda_pipeline *temp = NULL; 70 struct komeda_component **pos = NULL; 71 72 switch (id) { 73 case KOMEDA_COMPONENT_LAYER0: 74 case KOMEDA_COMPONENT_LAYER1: 75 case KOMEDA_COMPONENT_LAYER2: 76 case KOMEDA_COMPONENT_LAYER3: 77 pos = to_cpos(pipe->layers[id - KOMEDA_COMPONENT_LAYER0]); 78 break; 79 case KOMEDA_COMPONENT_WB_LAYER: 80 pos = to_cpos(pipe->wb_layer); 81 break; 82 case KOMEDA_COMPONENT_COMPIZ0: 83 case KOMEDA_COMPONENT_COMPIZ1: 84 temp = mdev->pipelines[id - KOMEDA_COMPONENT_COMPIZ0]; 85 if (!temp) { 86 DRM_ERROR("compiz-%d doesn't exist.\n", id); 87 return NULL; 88 } 89 pos = to_cpos(temp->compiz); 90 break; 91 case KOMEDA_COMPONENT_SCALER0: 92 case KOMEDA_COMPONENT_SCALER1: 93 pos = to_cpos(pipe->scalers[id - KOMEDA_COMPONENT_SCALER0]); 94 break; 95 case KOMEDA_COMPONENT_SPLITTER: 96 pos = to_cpos(pipe->splitter); 97 break; 98 case KOMEDA_COMPONENT_MERGER: 99 pos = to_cpos(pipe->merger); 100 break; 101 case KOMEDA_COMPONENT_IPS0: 102 case KOMEDA_COMPONENT_IPS1: 103 temp = mdev->pipelines[id - KOMEDA_COMPONENT_IPS0]; 104 if (!temp) { 105 DRM_ERROR("ips-%d doesn't exist.\n", id); 106 return NULL; 107 } 108 pos = to_cpos(temp->improc); 109 break; 110 case KOMEDA_COMPONENT_TIMING_CTRLR: 111 pos = to_cpos(pipe->ctrlr); 112 break; 113 default: 114 pos = NULL; 115 DRM_ERROR("Unknown pipeline resource ID: %d.\n", id); 116 break; 117 } 118 119 return pos; 120 } 121 122 struct komeda_component * 123 komeda_pipeline_get_component(struct komeda_pipeline *pipe, int id) 124 { 125 struct komeda_component **pos = NULL; 126 struct komeda_component *c = NULL; 127 128 pos = komeda_pipeline_get_component_pos(pipe, id); 129 if (pos) 130 c = *pos; 131 132 return c; 133 } 134 135 struct komeda_component * 136 komeda_pipeline_get_first_component(struct komeda_pipeline *pipe, 137 u32 comp_mask) 138 { 139 struct komeda_component *c = NULL; 140 int id; 141 142 id = find_first_bit((unsigned long *)&comp_mask, 32); 143 if (id < 32) 144 c = komeda_pipeline_get_component(pipe, id); 145 146 return c; 147 } 148 149 static struct komeda_component * 150 komeda_component_pickup_input(struct komeda_component *c, u32 avail_comps) 151 { 152 u32 avail_inputs = c->supported_inputs & (avail_comps); 153 154 return komeda_pipeline_get_first_component(c->pipeline, avail_inputs); 155 } 156 157 /** komeda_component_add - Add a component to &komeda_pipeline */ 158 struct komeda_component * 159 komeda_component_add(struct komeda_pipeline *pipe, 160 size_t comp_sz, u32 id, u32 hw_id, 161 const struct komeda_component_funcs *funcs, 162 u8 max_active_inputs, u32 supported_inputs, 163 u8 max_active_outputs, u32 __iomem *reg, 164 const char *name_fmt, ...) 165 { 166 struct komeda_component **pos; 167 struct komeda_component *c; 168 int idx, *num = NULL; 169 170 if (max_active_inputs > KOMEDA_COMPONENT_N_INPUTS) { 171 WARN(1, "please large KOMEDA_COMPONENT_N_INPUTS to %d.\n", 172 max_active_inputs); 173 return ERR_PTR(-ENOSPC); 174 } 175 176 pos = komeda_pipeline_get_component_pos(pipe, id); 177 if (!pos || (*pos)) 178 return ERR_PTR(-EINVAL); 179 180 if (has_bit(id, KOMEDA_PIPELINE_LAYERS)) { 181 idx = id - KOMEDA_COMPONENT_LAYER0; 182 num = &pipe->n_layers; 183 if (idx != pipe->n_layers) { 184 DRM_ERROR("please add Layer by id sequence.\n"); 185 return ERR_PTR(-EINVAL); 186 } 187 } else if (has_bit(id, KOMEDA_PIPELINE_SCALERS)) { 188 idx = id - KOMEDA_COMPONENT_SCALER0; 189 num = &pipe->n_scalers; 190 if (idx != pipe->n_scalers) { 191 DRM_ERROR("please add Scaler by id sequence.\n"); 192 return ERR_PTR(-EINVAL); 193 } 194 } 195 196 c = devm_kzalloc(pipe->mdev->dev, comp_sz, GFP_KERNEL); 197 if (!c) 198 return ERR_PTR(-ENOMEM); 199 200 c->id = id; 201 c->hw_id = hw_id; 202 c->reg = reg; 203 c->pipeline = pipe; 204 c->max_active_inputs = max_active_inputs; 205 c->max_active_outputs = max_active_outputs; 206 c->supported_inputs = supported_inputs; 207 c->funcs = funcs; 208 209 if (name_fmt) { 210 va_list args; 211 212 va_start(args, name_fmt); 213 vsnprintf(c->name, sizeof(c->name), name_fmt, args); 214 va_end(args); 215 } 216 217 if (num) 218 *num = *num + 1; 219 220 pipe->avail_comps |= BIT(c->id); 221 *pos = c; 222 223 return c; 224 } 225 226 void komeda_component_destroy(struct komeda_dev *mdev, 227 struct komeda_component *c) 228 { 229 devm_kfree(mdev->dev, c); 230 } 231 232 static void komeda_component_dump(struct komeda_component *c) 233 { 234 if (!c) 235 return; 236 237 DRM_DEBUG(" %s: ID %d-0x%08lx.\n", 238 c->name, c->id, BIT(c->id)); 239 DRM_DEBUG(" max_active_inputs:%d, supported_inputs: 0x%08x.\n", 240 c->max_active_inputs, c->supported_inputs); 241 DRM_DEBUG(" max_active_outputs:%d, supported_outputs: 0x%08x.\n", 242 c->max_active_outputs, c->supported_outputs); 243 } 244 245 static void komeda_pipeline_dump(struct komeda_pipeline *pipe) 246 { 247 struct komeda_component *c; 248 int id; 249 250 DRM_INFO("Pipeline-%d: n_layers: %d, n_scalers: %d, output: %s.\n", 251 pipe->id, pipe->n_layers, pipe->n_scalers, 252 pipe->dual_link ? "dual-link" : "single-link"); 253 DRM_INFO(" output_link[0]: %s.\n", 254 pipe->of_output_links[0] ? 255 pipe->of_output_links[0]->full_name : "none"); 256 DRM_INFO(" output_link[1]: %s.\n", 257 pipe->of_output_links[1] ? 258 pipe->of_output_links[1]->full_name : "none"); 259 260 dp_for_each_set_bit(id, pipe->avail_comps) { 261 c = komeda_pipeline_get_component(pipe, id); 262 263 komeda_component_dump(c); 264 } 265 } 266 267 static void komeda_component_verify_inputs(struct komeda_component *c) 268 { 269 struct komeda_pipeline *pipe = c->pipeline; 270 struct komeda_component *input; 271 int id; 272 273 dp_for_each_set_bit(id, c->supported_inputs) { 274 input = komeda_pipeline_get_component(pipe, id); 275 if (!input) { 276 c->supported_inputs &= ~(BIT(id)); 277 DRM_WARN("Can not find input(ID-%d) for component: %s.\n", 278 id, c->name); 279 continue; 280 } 281 282 input->supported_outputs |= BIT(c->id); 283 } 284 } 285 286 static struct komeda_layer * 287 komeda_get_layer_split_right_layer(struct komeda_pipeline *pipe, 288 struct komeda_layer *left) 289 { 290 int index = left->base.id - KOMEDA_COMPONENT_LAYER0; 291 int i; 292 293 for (i = index + 1; i < pipe->n_layers; i++) 294 if (left->layer_type == pipe->layers[i]->layer_type) 295 return pipe->layers[i]; 296 return NULL; 297 } 298 299 static void komeda_pipeline_assemble(struct komeda_pipeline *pipe) 300 { 301 struct komeda_component *c; 302 struct komeda_layer *layer; 303 int i, id; 304 305 dp_for_each_set_bit(id, pipe->avail_comps) { 306 c = komeda_pipeline_get_component(pipe, id); 307 komeda_component_verify_inputs(c); 308 } 309 /* calculate right layer for the layer split */ 310 for (i = 0; i < pipe->n_layers; i++) { 311 layer = pipe->layers[i]; 312 313 layer->right = komeda_get_layer_split_right_layer(pipe, layer); 314 } 315 316 if (pipe->dual_link && !pipe->ctrlr->supports_dual_link) { 317 pipe->dual_link = false; 318 DRM_WARN("PIPE-%d doesn't support dual-link, ignore DT dual-link configuration.\n", 319 pipe->id); 320 } 321 } 322 323 /* if pipeline_A accept another pipeline_B's component as input, treat 324 * pipeline_B as slave of pipeline_A. 325 */ 326 struct komeda_pipeline * 327 komeda_pipeline_get_slave(struct komeda_pipeline *master) 328 { 329 struct komeda_component *slave; 330 331 slave = komeda_component_pickup_input(&master->compiz->base, 332 KOMEDA_PIPELINE_COMPIZS); 333 334 return slave ? slave->pipeline : NULL; 335 } 336 337 int komeda_assemble_pipelines(struct komeda_dev *mdev) 338 { 339 struct komeda_pipeline *pipe; 340 int i; 341 342 for (i = 0; i < mdev->n_pipelines; i++) { 343 pipe = mdev->pipelines[i]; 344 345 komeda_pipeline_assemble(pipe); 346 komeda_pipeline_dump(pipe); 347 } 348 349 return 0; 350 } 351 352 void komeda_pipeline_dump_register(struct komeda_pipeline *pipe, 353 struct seq_file *sf) 354 { 355 struct komeda_component *c; 356 u32 id; 357 358 seq_printf(sf, "\n======== Pipeline-%d ==========\n", pipe->id); 359 360 if (pipe->funcs && pipe->funcs->dump_register) 361 pipe->funcs->dump_register(pipe, sf); 362 363 dp_for_each_set_bit(id, pipe->avail_comps) { 364 c = komeda_pipeline_get_component(pipe, id); 365 366 seq_printf(sf, "\n------%s------\n", c->name); 367 if (c->funcs->dump_register) 368 c->funcs->dump_register(c, sf); 369 } 370 } 371