1 /* 2 * Copyright 2013 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "priv.h" 25 #include "conn.h" 26 #include "head.h" 27 #include "ior.h" 28 #include "outp.h" 29 30 #include <core/client.h> 31 #include <core/ramht.h> 32 33 #include <nvif/class.h> 34 #include <nvif/cl0046.h> 35 #include <nvif/event.h> 36 #include <nvif/unpack.h> 37 38 static void 39 nvkm_disp_vblank_fini(struct nvkm_event *event, int type, int id) 40 { 41 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 42 struct nvkm_head *head = nvkm_head_find(disp, id); 43 if (head) 44 head->func->vblank_put(head); 45 } 46 47 static void 48 nvkm_disp_vblank_init(struct nvkm_event *event, int type, int id) 49 { 50 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 51 struct nvkm_head *head = nvkm_head_find(disp, id); 52 if (head) 53 head->func->vblank_get(head); 54 } 55 56 static const struct nvkm_event_func 57 nvkm_disp_vblank_func = { 58 .init = nvkm_disp_vblank_init, 59 .fini = nvkm_disp_vblank_fini, 60 }; 61 62 void 63 nvkm_disp_vblank(struct nvkm_disp *disp, int head) 64 { 65 nvkm_event_ntfy(&disp->vblank, head, NVKM_DISP_HEAD_EVENT_VBLANK); 66 } 67 68 static int 69 nvkm_disp_class_new(struct nvkm_device *device, 70 const struct nvkm_oclass *oclass, void *data, u32 size, 71 struct nvkm_object **pobject) 72 { 73 return nvkm_udisp_new(oclass, data, size, pobject); 74 } 75 76 static const struct nvkm_device_oclass 77 nvkm_disp_sclass = { 78 .ctor = nvkm_disp_class_new, 79 }; 80 81 static int 82 nvkm_disp_class_get(struct nvkm_oclass *oclass, int index, 83 const struct nvkm_device_oclass **class) 84 { 85 struct nvkm_disp *disp = nvkm_disp(oclass->engine); 86 if (index == 0) { 87 oclass->base = disp->func->root; 88 *class = &nvkm_disp_sclass; 89 return 0; 90 } 91 return 1; 92 } 93 94 static void 95 nvkm_disp_intr(struct nvkm_engine *engine) 96 { 97 struct nvkm_disp *disp = nvkm_disp(engine); 98 disp->func->intr(disp); 99 } 100 101 static int 102 nvkm_disp_fini(struct nvkm_engine *engine, bool suspend) 103 { 104 struct nvkm_disp *disp = nvkm_disp(engine); 105 struct nvkm_outp *outp; 106 107 if (disp->func->fini) 108 disp->func->fini(disp, suspend); 109 110 list_for_each_entry(outp, &disp->outps, head) { 111 if (outp->func->fini) 112 outp->func->fini(outp); 113 } 114 115 return 0; 116 } 117 118 static int 119 nvkm_disp_init(struct nvkm_engine *engine) 120 { 121 struct nvkm_disp *disp = nvkm_disp(engine); 122 struct nvkm_outp *outp; 123 struct nvkm_ior *ior; 124 125 list_for_each_entry(outp, &disp->outps, head) { 126 if (outp->func->init) 127 outp->func->init(outp); 128 } 129 130 if (disp->func->init) { 131 int ret = disp->func->init(disp); 132 if (ret) 133 return ret; 134 } 135 136 /* Set 'normal' (ie. when it's attached to a head) state for 137 * each output resource to 'fully enabled'. 138 */ 139 list_for_each_entry(ior, &disp->iors, head) { 140 if (ior->func->power) 141 ior->func->power(ior, true, true, true, true, true); 142 } 143 144 return 0; 145 } 146 147 static int 148 nvkm_disp_oneinit(struct nvkm_engine *engine) 149 { 150 struct nvkm_disp *disp = nvkm_disp(engine); 151 struct nvkm_subdev *subdev = &disp->engine.subdev; 152 struct nvkm_head *head; 153 int ret, i; 154 155 if (disp->func->oneinit) { 156 ret = disp->func->oneinit(disp); 157 if (ret) 158 return ret; 159 } 160 161 i = 0; 162 list_for_each_entry(head, &disp->heads, head) 163 i = max(i, head->id + 1); 164 165 return nvkm_event_init(&nvkm_disp_vblank_func, subdev, 1, i, &disp->vblank); 166 } 167 168 static void * 169 nvkm_disp_dtor(struct nvkm_engine *engine) 170 { 171 struct nvkm_disp *disp = nvkm_disp(engine); 172 struct nvkm_conn *conn; 173 struct nvkm_outp *outp; 174 struct nvkm_ior *ior; 175 struct nvkm_head *head; 176 void *data = disp; 177 178 nvkm_ramht_del(&disp->ramht); 179 nvkm_gpuobj_del(&disp->inst); 180 181 nvkm_event_fini(&disp->uevent); 182 183 if (disp->super.wq) { 184 destroy_workqueue(disp->super.wq); 185 mutex_destroy(&disp->super.mutex); 186 } 187 188 nvkm_event_fini(&disp->vblank); 189 190 while (!list_empty(&disp->conns)) { 191 conn = list_first_entry(&disp->conns, typeof(*conn), head); 192 list_del(&conn->head); 193 nvkm_conn_del(&conn); 194 } 195 196 while (!list_empty(&disp->outps)) { 197 outp = list_first_entry(&disp->outps, typeof(*outp), head); 198 list_del(&outp->head); 199 nvkm_outp_del(&outp); 200 } 201 202 while (!list_empty(&disp->iors)) { 203 ior = list_first_entry(&disp->iors, typeof(*ior), head); 204 nvkm_ior_del(&ior); 205 } 206 207 while (!list_empty(&disp->heads)) { 208 head = list_first_entry(&disp->heads, typeof(*head), head); 209 nvkm_head_del(&head); 210 } 211 212 if (disp->func && disp->func->dtor) 213 disp->func->dtor(disp); 214 215 return data; 216 } 217 218 static const struct nvkm_engine_func 219 nvkm_disp = { 220 .dtor = nvkm_disp_dtor, 221 .oneinit = nvkm_disp_oneinit, 222 .init = nvkm_disp_init, 223 .fini = nvkm_disp_fini, 224 .intr = nvkm_disp_intr, 225 .base.sclass = nvkm_disp_class_get, 226 }; 227 228 int 229 nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device, 230 enum nvkm_subdev_type type, int inst, struct nvkm_disp **pdisp) 231 { 232 struct nvkm_disp *disp; 233 int ret; 234 235 if (!(disp = *pdisp = kzalloc(sizeof(**pdisp), GFP_KERNEL))) 236 return -ENOMEM; 237 238 disp->func = func; 239 INIT_LIST_HEAD(&disp->heads); 240 INIT_LIST_HEAD(&disp->iors); 241 INIT_LIST_HEAD(&disp->outps); 242 INIT_LIST_HEAD(&disp->conns); 243 spin_lock_init(&disp->client.lock); 244 245 ret = nvkm_engine_ctor(&nvkm_disp, device, type, inst, true, &disp->engine); 246 if (ret) { 247 disp->func = NULL; 248 return ret; 249 } 250 251 if (func->super) { 252 disp->super.wq = create_singlethread_workqueue("nvkm-disp"); 253 if (!disp->super.wq) 254 return -ENOMEM; 255 256 INIT_WORK(&disp->super.work, func->super); 257 mutex_init(&disp->super.mutex); 258 } 259 260 return nvkm_event_init(func->uevent, &disp->engine.subdev, 1, ARRAY_SIZE(disp->chan), 261 &disp->uevent); 262 } 263