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1/*2 * Copyright 2013 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */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 38static void39nvkm_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 47static void48nvkm_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 56static const struct nvkm_event_func57nvkm_disp_vblank_func = {58 .init = nvkm_disp_vblank_init,59 .fini = nvkm_disp_vblank_fini,60};61 62void63nvkm_disp_vblank(struct nvkm_disp *disp, int head)64{65 nvkm_event_ntfy(&disp->vblank, head, NVKM_DISP_HEAD_EVENT_VBLANK);66}67 68static int69nvkm_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 76static const struct nvkm_device_oclass77nvkm_disp_sclass = {78 .ctor = nvkm_disp_class_new,79};80 81static int82nvkm_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 94static void95nvkm_disp_intr(struct nvkm_engine *engine)96{97 struct nvkm_disp *disp = nvkm_disp(engine);98 disp->func->intr(disp);99}100 101static int102nvkm_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 118static int119nvkm_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 for137 * 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 147static int148nvkm_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 168static void *169nvkm_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 218static const struct nvkm_engine_func219nvkm_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 228int229nvkm_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