1 /* 2 * Copyright 2021 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 #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 30 static int 31 nvkm_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 62 static void * 63 nvkm_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 74 static const struct nvkm_object_func 75 nvkm_udisp = { 76 .dtor = nvkm_udisp_dtor, 77 .sclass = nvkm_udisp_sclass, 78 }; 79 80 int 81 nvkm_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