1 /* 2 * Copyright 2015 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 <bskeggs@redhat.com> 23 */ 24 #include "priv.h" 25 26 #include <engine/fifo.h> 27 28 u32 29 nvkm_gr_ctxsw_inst(struct nvkm_device *device) 30 { 31 struct nvkm_gr *gr = device->gr; 32 if (gr && gr->func->ctxsw.inst) 33 return gr->func->ctxsw.inst(gr); 34 return 0; 35 } 36 37 int 38 nvkm_gr_ctxsw_resume(struct nvkm_device *device) 39 { 40 struct nvkm_gr *gr = device->gr; 41 if (gr && gr->func->ctxsw.resume) 42 return gr->func->ctxsw.resume(gr); 43 return 0; 44 } 45 46 int 47 nvkm_gr_ctxsw_pause(struct nvkm_device *device) 48 { 49 struct nvkm_gr *gr = device->gr; 50 if (gr && gr->func->ctxsw.pause) 51 return gr->func->ctxsw.pause(gr); 52 return 0; 53 } 54 55 static bool 56 nvkm_gr_chsw_load(struct nvkm_engine *engine) 57 { 58 struct nvkm_gr *gr = nvkm_gr(engine); 59 if (gr->func->chsw_load) 60 return gr->func->chsw_load(gr); 61 return false; 62 } 63 64 static void 65 nvkm_gr_tile(struct nvkm_engine *engine, int region, struct nvkm_fb_tile *tile) 66 { 67 struct nvkm_gr *gr = nvkm_gr(engine); 68 if (gr->func->tile) 69 gr->func->tile(gr, region, tile); 70 } 71 72 u64 73 nvkm_gr_units(struct nvkm_gr *gr) 74 { 75 if (gr->func->units) 76 return gr->func->units(gr); 77 return 0; 78 } 79 80 int 81 nvkm_gr_tlb_flush(struct nvkm_gr *gr) 82 { 83 if (gr->func->tlb_flush) 84 return gr->func->tlb_flush(gr); 85 return -ENODEV; 86 } 87 88 static int 89 nvkm_gr_oclass_get(struct nvkm_oclass *oclass, int index) 90 { 91 struct nvkm_gr *gr = nvkm_gr(oclass->engine); 92 int c = 0; 93 94 if (gr->func->object_get) { 95 int ret = gr->func->object_get(gr, index, &oclass->base); 96 if (oclass->base.oclass) 97 return index; 98 return ret; 99 } 100 101 while (gr->func->sclass[c].oclass) { 102 if (c++ == index) { 103 oclass->base = gr->func->sclass[index]; 104 return index; 105 } 106 } 107 108 return c; 109 } 110 111 static int 112 nvkm_gr_cclass_new(struct nvkm_chan *chan, const struct nvkm_oclass *oclass, 113 struct nvkm_object **pobject) 114 { 115 struct nvkm_gr *gr = nvkm_gr(oclass->engine); 116 if (gr->func->chan_new) 117 return gr->func->chan_new(gr, chan, oclass, pobject); 118 return 0; 119 } 120 121 static void 122 nvkm_gr_intr(struct nvkm_engine *engine) 123 { 124 struct nvkm_gr *gr = nvkm_gr(engine); 125 gr->func->intr(gr); 126 } 127 128 static int 129 nvkm_gr_nonstall(struct nvkm_engine *engine) 130 { 131 struct nvkm_gr *gr = nvkm_gr(engine); 132 133 if (gr->func->nonstall) 134 return gr->func->nonstall(gr); 135 136 return -EINVAL; 137 } 138 139 static int 140 nvkm_gr_oneinit(struct nvkm_engine *engine) 141 { 142 struct nvkm_gr *gr = nvkm_gr(engine); 143 if (gr->func->oneinit) 144 return gr->func->oneinit(gr); 145 return 0; 146 } 147 148 static int 149 nvkm_gr_reset(struct nvkm_engine *engine) 150 { 151 struct nvkm_gr *gr = nvkm_gr(engine); 152 153 if (gr->func->reset) 154 return gr->func->reset(gr); 155 156 return -ENOSYS; 157 } 158 159 static int 160 nvkm_gr_init(struct nvkm_engine *engine) 161 { 162 struct nvkm_gr *gr = nvkm_gr(engine); 163 return gr->func->init(gr); 164 } 165 166 static int 167 nvkm_gr_fini(struct nvkm_engine *engine, bool suspend) 168 { 169 struct nvkm_gr *gr = nvkm_gr(engine); 170 if (gr->func->fini) 171 return gr->func->fini(gr, suspend); 172 return 0; 173 } 174 175 static void * 176 nvkm_gr_dtor(struct nvkm_engine *engine) 177 { 178 struct nvkm_gr *gr = nvkm_gr(engine); 179 if (gr->func->dtor) 180 return gr->func->dtor(gr); 181 return gr; 182 } 183 184 static const struct nvkm_engine_func 185 nvkm_gr = { 186 .dtor = nvkm_gr_dtor, 187 .oneinit = nvkm_gr_oneinit, 188 .init = nvkm_gr_init, 189 .fini = nvkm_gr_fini, 190 .reset = nvkm_gr_reset, 191 .nonstall = nvkm_gr_nonstall, 192 .intr = nvkm_gr_intr, 193 .tile = nvkm_gr_tile, 194 .chsw_load = nvkm_gr_chsw_load, 195 .fifo.cclass = nvkm_gr_cclass_new, 196 .fifo.sclass = nvkm_gr_oclass_get, 197 }; 198 199 int 200 nvkm_gr_ctor(const struct nvkm_gr_func *func, struct nvkm_device *device, 201 enum nvkm_subdev_type type, int inst, bool enable, struct nvkm_gr *gr) 202 { 203 gr->func = func; 204 return nvkm_engine_ctor(&nvkm_gr, device, type, inst, enable, &gr->engine); 205 } 206