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1/*2 * Copyright 2021 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#include "priv.h"23#include "conn.h"24#include "head.h"25#include "outp.h"26 27#include <nvif/class.h>28#include <nvif/if0010.h>29 30static int31nvkm_udisp_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *sclass)32{33 struct nvkm_disp *disp = nvkm_udisp(object);34 35 if (index-- == 0) {36 sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_CONN };37 sclass->ctor = nvkm_uconn_new;38 return 0;39 }40 41 if (index-- == 0) {42 sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_OUTP };43 sclass->ctor = nvkm_uoutp_new;44 return 0;45 }46 47 if (index-- == 0) {48 sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_HEAD };49 sclass->ctor = nvkm_uhead_new;50 return 0;51 }52 53 if (disp->func->user[index].ctor) {54 sclass->base = disp->func->user[index].base;55 sclass->ctor = disp->func->user[index].ctor;56 return 0;57 }58 59 return -EINVAL;60}61 62static void *63nvkm_udisp_dtor(struct nvkm_object *object)64{65 struct nvkm_disp *disp = nvkm_udisp(object);66 67 spin_lock(&disp->client.lock);68 if (object == &disp->client.object)69 disp->client.object.func = NULL;70 spin_unlock(&disp->client.lock);71 return NULL;72}73 74static const struct nvkm_object_func75nvkm_udisp = {76 .dtor = nvkm_udisp_dtor,77 .sclass = nvkm_udisp_sclass,78};79 80int81nvkm_udisp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)82{83 struct nvkm_disp *disp = nvkm_disp(oclass->engine);84 struct nvkm_conn *conn;85 struct nvkm_outp *outp;86 struct nvkm_head *head;87 union nvif_disp_args *args = argv;88 89 if (argc != sizeof(args->v0) || args->v0.version != 0)90 return -ENOSYS;91 92 spin_lock(&disp->client.lock);93 if (disp->client.object.func) {94 spin_unlock(&disp->client.lock);95 return -EBUSY;96 }97 nvkm_object_ctor(&nvkm_udisp, oclass, &disp->client.object);98 *pobject = &disp->client.object;99 spin_unlock(&disp->client.lock);100 101 args->v0.conn_mask = 0;102 list_for_each_entry(conn, &disp->conns, head)103 args->v0.conn_mask |= BIT(conn->index);104 105 args->v0.outp_mask = 0;106 list_for_each_entry(outp, &disp->outps, head)107 args->v0.outp_mask |= BIT(outp->index);108 109 args->v0.head_mask = 0;110 list_for_each_entry(head, &disp->heads, head)111 args->v0.head_mask |= BIT(head->id);112 113 return 0;114}115