1 /* 2 * Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved. 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 * DEALINGS IN THE SOFTWARE. 21 */ 22 #include "gk20a.h" 23 #include "ctxgf100.h" 24 25 #include <nvif/class.h> 26 #include <subdev/timer.h> 27 28 static struct nvkm_oclass 29 gk20a_gr_sclass[] = { 30 { FERMI_TWOD_A, &nvkm_object_ofuncs }, 31 { KEPLER_INLINE_TO_MEMORY_A, &nvkm_object_ofuncs }, 32 { KEPLER_C, &gf100_fermi_ofuncs, gf100_gr_9097_omthds }, 33 { KEPLER_COMPUTE_A, &nvkm_object_ofuncs, gf100_gr_90c0_omthds }, 34 {} 35 }; 36 37 static void 38 gk20a_gr_init_dtor(struct gf100_gr_pack *pack) 39 { 40 vfree(pack); 41 } 42 43 struct gk20a_fw_av 44 { 45 u32 addr; 46 u32 data; 47 }; 48 49 static struct gf100_gr_pack * 50 gk20a_gr_av_to_init(struct gf100_gr_fuc *fuc) 51 { 52 struct gf100_gr_init *init; 53 struct gf100_gr_pack *pack; 54 const int nent = (fuc->size / sizeof(struct gk20a_fw_av)); 55 int i; 56 57 pack = vzalloc((sizeof(*pack) * 2) + (sizeof(*init) * (nent + 1))); 58 if (!pack) 59 return ERR_PTR(-ENOMEM); 60 61 init = (void *)(pack + 2); 62 63 pack[0].init = init; 64 65 for (i = 0; i < nent; i++) { 66 struct gf100_gr_init *ent = &init[i]; 67 struct gk20a_fw_av *av = &((struct gk20a_fw_av *)fuc->data)[i]; 68 69 ent->addr = av->addr; 70 ent->data = av->data; 71 ent->count = 1; 72 ent->pitch = 1; 73 } 74 75 return pack; 76 } 77 78 struct gk20a_fw_aiv 79 { 80 u32 addr; 81 u32 index; 82 u32 data; 83 }; 84 85 static struct gf100_gr_pack * 86 gk20a_gr_aiv_to_init(struct gf100_gr_fuc *fuc) 87 { 88 struct gf100_gr_init *init; 89 struct gf100_gr_pack *pack; 90 const int nent = (fuc->size / sizeof(struct gk20a_fw_aiv)); 91 int i; 92 93 pack = vzalloc((sizeof(*pack) * 2) + (sizeof(*init) * (nent + 1))); 94 if (!pack) 95 return ERR_PTR(-ENOMEM); 96 97 init = (void *)(pack + 2); 98 99 pack[0].init = init; 100 101 for (i = 0; i < nent; i++) { 102 struct gf100_gr_init *ent = &init[i]; 103 struct gk20a_fw_aiv *av = &((struct gk20a_fw_aiv *)fuc->data)[i]; 104 105 ent->addr = av->addr; 106 ent->data = av->data; 107 ent->count = 1; 108 ent->pitch = 1; 109 } 110 111 return pack; 112 } 113 114 static struct gf100_gr_pack * 115 gk20a_gr_av_to_method(struct gf100_gr_fuc *fuc) 116 { 117 struct gf100_gr_init *init; 118 struct gf100_gr_pack *pack; 119 /* We don't suppose we will initialize more than 16 classes here... */ 120 static const unsigned int max_classes = 16; 121 const int nent = (fuc->size / sizeof(struct gk20a_fw_av)); 122 int i, classidx = 0; 123 u32 prevclass = 0; 124 125 pack = vzalloc((sizeof(*pack) * max_classes) + 126 (sizeof(*init) * (nent + 1))); 127 if (!pack) 128 return ERR_PTR(-ENOMEM); 129 130 init = (void *)(pack + max_classes); 131 132 for (i = 0; i < nent; i++) { 133 struct gf100_gr_init *ent = &init[i]; 134 struct gk20a_fw_av *av = &((struct gk20a_fw_av *)fuc->data)[i]; 135 u32 class = av->addr & 0xffff; 136 u32 addr = (av->addr & 0xffff0000) >> 14; 137 138 if (prevclass != class) { 139 pack[classidx].init = ent; 140 pack[classidx].type = class; 141 prevclass = class; 142 if (++classidx >= max_classes) { 143 vfree(pack); 144 return ERR_PTR(-ENOSPC); 145 } 146 } 147 148 ent->addr = addr; 149 ent->data = av->data; 150 ent->count = 1; 151 ent->pitch = 1; 152 } 153 154 return pack; 155 } 156 157 int 158 gk20a_gr_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 159 struct nvkm_oclass *oclass, void *data, u32 size, 160 struct nvkm_object **pobject) 161 { 162 int err; 163 struct gf100_gr_priv *priv; 164 struct gf100_gr_fuc fuc; 165 166 err = gf100_gr_ctor(parent, engine, oclass, data, size, pobject); 167 if (err) 168 return err; 169 170 priv = (void *)*pobject; 171 172 err = gf100_gr_ctor_fw(priv, "sw_nonctx", &fuc); 173 if (err) 174 return err; 175 priv->fuc_sw_nonctx = gk20a_gr_av_to_init(&fuc); 176 gf100_gr_dtor_fw(&fuc); 177 if (IS_ERR(priv->fuc_sw_nonctx)) 178 return PTR_ERR(priv->fuc_sw_nonctx); 179 180 err = gf100_gr_ctor_fw(priv, "sw_ctx", &fuc); 181 if (err) 182 return err; 183 priv->fuc_sw_ctx = gk20a_gr_aiv_to_init(&fuc); 184 gf100_gr_dtor_fw(&fuc); 185 if (IS_ERR(priv->fuc_sw_ctx)) 186 return PTR_ERR(priv->fuc_sw_ctx); 187 188 err = gf100_gr_ctor_fw(priv, "sw_bundle_init", &fuc); 189 if (err) 190 return err; 191 priv->fuc_bundle = gk20a_gr_av_to_init(&fuc); 192 gf100_gr_dtor_fw(&fuc); 193 if (IS_ERR(priv->fuc_bundle)) 194 return PTR_ERR(priv->fuc_bundle); 195 196 err = gf100_gr_ctor_fw(priv, "sw_method_init", &fuc); 197 if (err) 198 return err; 199 priv->fuc_method = gk20a_gr_av_to_method(&fuc); 200 gf100_gr_dtor_fw(&fuc); 201 if (IS_ERR(priv->fuc_method)) 202 return PTR_ERR(priv->fuc_method); 203 204 return 0; 205 } 206 207 void 208 gk20a_gr_dtor(struct nvkm_object *object) 209 { 210 struct gf100_gr_priv *priv = (void *)object; 211 212 gk20a_gr_init_dtor(priv->fuc_method); 213 gk20a_gr_init_dtor(priv->fuc_bundle); 214 gk20a_gr_init_dtor(priv->fuc_sw_ctx); 215 gk20a_gr_init_dtor(priv->fuc_sw_nonctx); 216 217 gf100_gr_dtor(object); 218 } 219 220 static int 221 gk20a_gr_wait_mem_scrubbing(struct gf100_gr_priv *priv) 222 { 223 if (!nv_wait(priv, 0x40910c, 0x6, 0x0)) { 224 nv_error(priv, "FECS mem scrubbing timeout\n"); 225 return -ETIMEDOUT; 226 } 227 228 if (!nv_wait(priv, 0x41a10c, 0x6, 0x0)) { 229 nv_error(priv, "GPCCS mem scrubbing timeout\n"); 230 return -ETIMEDOUT; 231 } 232 233 return 0; 234 } 235 236 static void 237 gk20a_gr_set_hww_esr_report_mask(struct gf100_gr_priv *priv) 238 { 239 nv_wr32(priv, 0x419e44, 0x1ffffe); 240 nv_wr32(priv, 0x419e4c, 0x7f); 241 } 242 243 int 244 gk20a_gr_init(struct nvkm_object *object) 245 { 246 struct gk20a_gr_oclass *oclass = (void *)object->oclass; 247 struct gf100_gr_priv *priv = (void *)object; 248 const u32 magicgpc918 = DIV_ROUND_UP(0x00800000, priv->tpc_total); 249 u32 data[TPC_MAX / 8] = {}; 250 u8 tpcnr[GPC_MAX]; 251 int gpc, tpc; 252 int ret, i; 253 254 ret = nvkm_gr_init(&priv->base); 255 if (ret) 256 return ret; 257 258 /* Clear SCC RAM */ 259 nv_wr32(priv, 0x40802c, 0x1); 260 261 gf100_gr_mmio(priv, priv->fuc_sw_nonctx); 262 263 ret = gk20a_gr_wait_mem_scrubbing(priv); 264 if (ret) 265 return ret; 266 267 ret = gf100_gr_wait_idle(priv); 268 if (ret) 269 return ret; 270 271 /* MMU debug buffer */ 272 nv_wr32(priv, 0x100cc8, priv->unk4188b4->addr >> 8); 273 nv_wr32(priv, 0x100ccc, priv->unk4188b8->addr >> 8); 274 275 if (oclass->init_gpc_mmu) 276 oclass->init_gpc_mmu(priv); 277 278 /* Set the PE as stream master */ 279 nv_mask(priv, 0x503018, 0x1, 0x1); 280 281 /* Zcull init */ 282 memset(data, 0x00, sizeof(data)); 283 memcpy(tpcnr, priv->tpc_nr, sizeof(priv->tpc_nr)); 284 for (i = 0, gpc = -1; i < priv->tpc_total; i++) { 285 do { 286 gpc = (gpc + 1) % priv->gpc_nr; 287 } while (!tpcnr[gpc]); 288 tpc = priv->tpc_nr[gpc] - tpcnr[gpc]--; 289 290 data[i / 8] |= tpc << ((i % 8) * 4); 291 } 292 293 nv_wr32(priv, GPC_BCAST(0x0980), data[0]); 294 nv_wr32(priv, GPC_BCAST(0x0984), data[1]); 295 nv_wr32(priv, GPC_BCAST(0x0988), data[2]); 296 nv_wr32(priv, GPC_BCAST(0x098c), data[3]); 297 298 for (gpc = 0; gpc < priv->gpc_nr; gpc++) { 299 nv_wr32(priv, GPC_UNIT(gpc, 0x0914), 300 priv->magic_not_rop_nr << 8 | priv->tpc_nr[gpc]); 301 nv_wr32(priv, GPC_UNIT(gpc, 0x0910), 0x00040000 | 302 priv->tpc_total); 303 nv_wr32(priv, GPC_UNIT(gpc, 0x0918), magicgpc918); 304 } 305 306 nv_wr32(priv, GPC_BCAST(0x3fd4), magicgpc918); 307 308 /* Enable FIFO access */ 309 nv_wr32(priv, 0x400500, 0x00010001); 310 311 /* Enable interrupts */ 312 nv_wr32(priv, 0x400100, 0xffffffff); 313 nv_wr32(priv, 0x40013c, 0xffffffff); 314 315 /* Enable FECS error interrupts */ 316 nv_wr32(priv, 0x409c24, 0x000f0000); 317 318 /* Enable hardware warning exceptions */ 319 nv_wr32(priv, 0x404000, 0xc0000000); 320 nv_wr32(priv, 0x404600, 0xc0000000); 321 322 if (oclass->set_hww_esr_report_mask) 323 oclass->set_hww_esr_report_mask(priv); 324 325 /* Enable TPC exceptions per GPC */ 326 nv_wr32(priv, 0x419d0c, 0x2); 327 nv_wr32(priv, 0x41ac94, (((1 << priv->tpc_total) - 1) & 0xff) << 16); 328 329 /* Reset and enable all exceptions */ 330 nv_wr32(priv, 0x400108, 0xffffffff); 331 nv_wr32(priv, 0x400138, 0xffffffff); 332 nv_wr32(priv, 0x400118, 0xffffffff); 333 nv_wr32(priv, 0x400130, 0xffffffff); 334 nv_wr32(priv, 0x40011c, 0xffffffff); 335 nv_wr32(priv, 0x400134, 0xffffffff); 336 337 gf100_gr_zbc_init(priv); 338 339 return gf100_gr_init_ctxctl(priv); 340 } 341 342 struct nvkm_oclass * 343 gk20a_gr_oclass = &(struct gk20a_gr_oclass) { 344 .gf100 = { 345 .base.handle = NV_ENGINE(GR, 0xea), 346 .base.ofuncs = &(struct nvkm_ofuncs) { 347 .ctor = gk20a_gr_ctor, 348 .dtor = gk20a_gr_dtor, 349 .init = gk20a_gr_init, 350 .fini = _nvkm_gr_fini, 351 }, 352 .cclass = &gk20a_grctx_oclass, 353 .sclass = gk20a_gr_sclass, 354 .ppc_nr = 1, 355 }, 356 .set_hww_esr_report_mask = gk20a_gr_set_hww_esr_report_mask, 357 }.gf100.base; 358