src/gallium/drivers/nouveau/nvc0/nvc0_compute.c

   1 /*
   2  * Copyright 2013 Nouveau Project
   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
  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: Christoph Bumiller, Samuel Pitoiset
  23  */
  24
  25 #include "nvc0/nvc0_context.h"
  26
  27 #include "nvc0/nvc0_compute.xml.h"
  28
  29 int
  30 nvc0_screen_compute_setup(struct nvc0_screen *screen,
  31                           struct nouveau_pushbuf *push)
  32 {
  33    struct nouveau_object *chan = screen->base.channel;
  34    struct nouveau_device *dev = screen->base.device;
  35    uint32_t obj_class;
  36    int ret;
  37    int i;
  38
  39    switch (dev->chipset & ~0xf) {
  40    case 0xc0:
  41    case 0xd0:
  42       /* In theory, GF110+ should also support NVC8_COMPUTE_CLASS but,
  43        * in practice, a ILLEGAL_CLASS dmesg fail appears when using it. */
  44       obj_class = NVC0_COMPUTE_CLASS;
  45       break;
  46    default:
  47       NOUVEAU_ERR("unsupported chipset: NV%02x\n", dev->chipset);
  48       return -1;
  49    }
  50
  51    ret = nouveau_object_new(chan, 0xbeef90c0, obj_class, NULL, 0,
  52                             &screen->compute);
  53    if (ret) {
  54       NOUVEAU_ERR("Failed to allocate compute object: %d\n", ret);
  55       return ret;
  56    }
  57
  58    ret = nouveau_bo_new(dev, NV_VRAM_DOMAIN(&screen->base), 0, 1 << 12, NULL,
  59                         &screen->parm);
  60    if (ret)
  61       return ret;
  62
  63    BEGIN_NVC0(push, SUBC_CP(NV01_SUBCHAN_OBJECT), 1);
  64    PUSH_DATA (push, screen->compute->oclass);
  65
  66    /* hardware limit */
  67    BEGIN_NVC0(push, NVC0_CP(MP_LIMIT), 1);
  68    PUSH_DATA (push, screen->mp_count);
  69    BEGIN_NVC0(push, NVC0_CP(CALL_LIMIT_LOG), 1);
  70    PUSH_DATA (push, 0xf);
  71
  72    BEGIN_NVC0(push, SUBC_CP(0x02a0), 1);
  73    PUSH_DATA (push, 0x8000);
  74
  75    /* global memory setup */
  76    BEGIN_NVC0(push, SUBC_CP(0x02c4), 1);
  77    PUSH_DATA (push, 0);
  78    BEGIN_NIC0(push, NVC0_CP(GLOBAL_BASE), 0x100);
  79    for (i = 0; i <= 0xff; i++)
  80       PUSH_DATA (push, (0xc << 28) | (i << 16) | i);
  81    BEGIN_NVC0(push, SUBC_CP(0x02c4), 1);
  82    PUSH_DATA (push, 1);
  83
  84    /* local memory and cstack setup */
  85    BEGIN_NVC0(push, NVC0_CP(TEMP_ADDRESS_HIGH), 2);
  86    PUSH_DATAh(push, screen->tls->offset);
  87    PUSH_DATA (push, screen->tls->offset);
  88    BEGIN_NVC0(push, NVC0_CP(TEMP_SIZE_HIGH), 2);
  89    PUSH_DATAh(push, screen->tls->size);
  90    PUSH_DATA (push, screen->tls->size);
  91    BEGIN_NVC0(push, NVC0_CP(WARP_TEMP_ALLOC), 1);
  92    PUSH_DATA (push, 0);
  93    BEGIN_NVC0(push, NVC0_CP(LOCAL_BASE), 1);
  94    PUSH_DATA (push, 0xff << 24);
  95
  96    /* shared memory setup */
  97    BEGIN_NVC0(push, NVC0_CP(CACHE_SPLIT), 1);
  98    PUSH_DATA (push, NVC0_COMPUTE_CACHE_SPLIT_48K_SHARED_16K_L1);
  99    BEGIN_NVC0(push, NVC0_CP(SHARED_BASE), 1);
 100    PUSH_DATA (push, 0xfe << 24);
 101    BEGIN_NVC0(push, NVC0_CP(SHARED_SIZE), 1);
 102    PUSH_DATA (push, 0);
 103
 104    /* code segment setup */
 105    BEGIN_NVC0(push, NVC0_CP(CODE_ADDRESS_HIGH), 2);
 106    PUSH_DATAh(push, screen->text->offset);
 107    PUSH_DATA (push, screen->text->offset);
 108
 109    /* textures */
 110    BEGIN_NVC0(push, NVC0_CP(TIC_ADDRESS_HIGH), 3);
 111    PUSH_DATAh(push, screen->txc->offset);
 112    PUSH_DATA (push, screen->txc->offset);
 113    PUSH_DATA (push, NVC0_TIC_MAX_ENTRIES - 1);
 114
 115    /* samplers */
 116    BEGIN_NVC0(push, NVC0_CP(TSC_ADDRESS_HIGH), 3);
 117    PUSH_DATAh(push, screen->txc->offset + 65536);
 118    PUSH_DATA (push, screen->txc->offset + 65536);
 119    PUSH_DATA (push, NVC0_TSC_MAX_ENTRIES - 1);
 120
 121    return 0;
 122 }
 123
 124 static void
 125 nvc0_compute_validate_samplers(struct nvc0_context *nvc0)
 126 {
 127    bool need_flush = nvc0_validate_tsc(nvc0, 5);
 128    if (need_flush) {
 129       BEGIN_NVC0(nvc0->base.pushbuf, NVC0_CP(TSC_FLUSH), 1);
 130       PUSH_DATA (nvc0->base.pushbuf, 0);
 131    }
 132 }
 133
 134 static void
 135 nvc0_compute_validate_textures(struct nvc0_context *nvc0)
 136 {
 137    bool need_flush = nvc0_validate_tic(nvc0, 5);
 138    if (need_flush) {
 139       BEGIN_NVC0(nvc0->base.pushbuf, NVC0_CP(TIC_FLUSH), 1);
 140       PUSH_DATA (nvc0->base.pushbuf, 0);
 141    }
 142 }
 143
 144 static void
 145 nvc0_compute_validate_constbufs(struct nvc0_context *nvc0)
 146 {
 147    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 148    const int s = 5;
 149
 150    while (nvc0->constbuf_dirty[s]) {
 151       int i = ffs(nvc0->constbuf_dirty[s]) - 1;
 152       nvc0->constbuf_dirty[s] &= ~(1 << i);
 153
 154       if (nvc0->constbuf[s][i].user) {
 155          struct nouveau_bo *bo = nvc0->screen->uniform_bo;
 156          const unsigned base = NVC0_CB_USR_INFO(s);
 157          const unsigned size = nvc0->constbuf[s][0].size;
 158          assert(i == 0); /* we really only want OpenGL uniforms here */
 159          assert(nvc0->constbuf[s][0].u.data);
 160
 161          if (nvc0->state.uniform_buffer_bound[s] < size) {
 162             nvc0->state.uniform_buffer_bound[s] = align(size, 0x100);
 163
 164             BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
 165             PUSH_DATA (push, nvc0->state.uniform_buffer_bound[s]);
 166             PUSH_DATAh(push, bo->offset + base);
 167             PUSH_DATA (push, bo->offset + base);
 168             BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
 169             PUSH_DATA (push, (0 << 8) | 1);
 170          }
 171          nvc0_cb_bo_push(&nvc0->base, bo, NV_VRAM_DOMAIN(&nvc0->screen->base),
 172                          base, nvc0->state.uniform_buffer_bound[s],
 173                          0, (size + 3) / 4,
 174                          nvc0->constbuf[s][0].u.data);
 175       } else {
 176          struct nv04_resource *res =
 177             nv04_resource(nvc0->constbuf[s][i].u.buf);
 178          if (res) {
 179             BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
 180             PUSH_DATA (push, nvc0->constbuf[s][i].size);
 181             PUSH_DATAh(push, res->address + nvc0->constbuf[s][i].offset);
 182             PUSH_DATA (push, res->address + nvc0->constbuf[s][i].offset);
 183             BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
 184             PUSH_DATA (push, (i << 8) | 1);
 185
 186             BCTX_REFN(nvc0->bufctx_cp, CP_CB(i), res, RD);
 187
 188             res->cb_bindings[s] |= 1 << i;
 189          } else {
 190             BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
 191             PUSH_DATA (push, (i << 8) | 0);
 192          }
 193          if (i == 0)
 194             nvc0->state.uniform_buffer_bound[s] = 0;
 195       }
 196    }
 197
 198    BEGIN_NVC0(push, NVC0_CP(FLUSH), 1);
 199    PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CB);
 200 }
 201
 202 static void
 203 nvc0_compute_validate_driverconst(struct nvc0_context *nvc0)
 204 {
 205    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 206    struct nvc0_screen *screen = nvc0->screen;
 207
 208    BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
 209    PUSH_DATA (push, 1024);
 210    PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(5));
 211    PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(5));
 212    BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
 213    PUSH_DATA (push, (15 << 8) | 1);
 214
 215    nvc0->dirty_3d |= NVC0_NEW_3D_DRIVERCONST;
 216 }
 217
 218 static void
 219 nvc0_compute_validate_buffers(struct nvc0_context *nvc0)
 220 {
 221    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 222    struct nvc0_screen *screen = nvc0->screen;
 223    const int s = 5;
 224    int i;
 225
 226    BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
 227    PUSH_DATA (push, 1024);
 228    PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
 229    PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
 230    BEGIN_1IC0(push, NVC0_CP(CB_POS), 1 + 4 * NVC0_MAX_BUFFERS);
 231    PUSH_DATA (push, NVC0_CB_AUX_BUF_INFO(0));
 232
 233    for (i = 0; i < NVC0_MAX_BUFFERS; i++) {
 234       if (nvc0->buffers[s][i].buffer) {
 235          struct nv04_resource *res =
 236             nv04_resource(nvc0->buffers[s][i].buffer);
 237          PUSH_DATA (push, res->address + nvc0->buffers[s][i].buffer_offset);
 238          PUSH_DATAh(push, res->address + nvc0->buffers[s][i].buffer_offset);
 239          PUSH_DATA (push, nvc0->buffers[s][i].buffer_size);
 240          PUSH_DATA (push, 0);
 241          BCTX_REFN(nvc0->bufctx_cp, CP_BUF, res, RDWR);
 242       } else {
 243          PUSH_DATA (push, 0);
 244          PUSH_DATA (push, 0);
 245          PUSH_DATA (push, 0);
 246          PUSH_DATA (push, 0);
 247       }
 248    }
 249 }
 250
 251 void
 252 nvc0_compute_validate_globals(struct nvc0_context *nvc0)
 253 {
 254    unsigned i;
 255
 256    for (i = 0; i < nvc0->global_residents.size / sizeof(struct pipe_resource *);
 257         ++i) {
 258       struct pipe_resource *res = *util_dynarray_element(
 259          &nvc0->global_residents, struct pipe_resource *, i);
 260       if (res)
 261          nvc0_add_resident(nvc0->bufctx_cp, NVC0_BIND_CP_GLOBAL,
 262                            nv04_resource(res), NOUVEAU_BO_RDWR);
 263    }
 264 }
 265
 266 static struct nvc0_state_validate
 267 validate_list_cp[] = {
 268    { nvc0_compprog_validate,              NVC0_NEW_CP_PROGRAM     },
 269    { nvc0_compute_validate_constbufs,     NVC0_NEW_CP_CONSTBUF    },
 270    { nvc0_compute_validate_driverconst,   NVC0_NEW_CP_DRIVERCONST },
 271    { nvc0_compute_validate_buffers,       NVC0_NEW_CP_BUFFERS     },
 272    { nvc0_compute_validate_textures,      NVC0_NEW_CP_TEXTURES    },
 273    { nvc0_compute_validate_samplers,      NVC0_NEW_CP_SAMPLERS    },
 274    { nvc0_compute_validate_globals,       NVC0_NEW_CP_GLOBALS     },
 275 };
 276
 277 static bool
 278 nvc0_state_validate_cp(struct nvc0_context *nvc0, uint32_t mask)
 279 {
 280    bool ret;
 281
 282    ret = nvc0_state_validate(nvc0, mask, validate_list_cp,
 283                              ARRAY_SIZE(validate_list_cp), &nvc0->dirty_cp,
 284                              nvc0->bufctx_cp);
 285
 286    if (unlikely(nvc0->state.flushed))
 287       nvc0_bufctx_fence(nvc0, nvc0->bufctx_cp, true);
 288    return ret;
 289 }
 290
 291 static void
 292 nvc0_compute_upload_input(struct nvc0_context *nvc0, const void *input)
 293 {
 294    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 295    struct nvc0_screen *screen = nvc0->screen;
 296    struct nvc0_program *cp = nvc0->compprog;
 297
 298    if (cp->parm_size) {
 299       BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
 300       PUSH_DATA (push, align(cp->parm_size, 0x100));
 301       PUSH_DATAh(push, screen->parm->offset);
 302       PUSH_DATA (push, screen->parm->offset);
 303       BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
 304       PUSH_DATA (push, (0 << 8) | 1);
 305       /* NOTE: size is limited to 4 KiB, which is < NV04_PFIFO_MAX_PACKET_LEN */
 306       BEGIN_1IC0(push, NVC0_CP(CB_POS), 1 + cp->parm_size / 4);
 307       PUSH_DATA (push, 0);
 308       PUSH_DATAp(push, input, cp->parm_size / 4);
 309
 310       BEGIN_NVC0(push, NVC0_CP(FLUSH), 1);
 311       PUSH_DATA (push, NVC0_COMPUTE_FLUSH_CB);
 312    }
 313 }
 314
 315 void
 316 nvc0_launch_grid(struct pipe_context *pipe, const struct pipe_grid_info *info)
 317 {
 318    struct nvc0_context *nvc0 = nvc0_context(pipe);
 319    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
 320    struct nvc0_program *cp = nvc0->compprog;
 321    unsigned s;
 322    int ret;
 323
 324    ret = !nvc0_state_validate_cp(nvc0, ~0);
 325    if (ret) {
 326       NOUVEAU_ERR("Failed to launch grid !\n");
 327       return;
 328    }
 329
 330    nvc0_compute_upload_input(nvc0, info->input);
 331
 332    BEGIN_NVC0(push, NVC0_CP(CP_START_ID), 1);
 333    PUSH_DATA (push, nvc0_program_symbol_offset(cp, info->pc));
 334
 335    BEGIN_NVC0(push, NVC0_CP(LOCAL_POS_ALLOC), 3);
 336    PUSH_DATA (push, align(cp->cp.lmem_size, 0x10));
 337    PUSH_DATA (push, 0);
 338    PUSH_DATA (push, 0x800); /* WARP_CSTACK_SIZE */
 339
 340    BEGIN_NVC0(push, NVC0_CP(SHARED_SIZE), 3);
 341    PUSH_DATA (push, align(cp->cp.smem_size, 0x100));
 342    PUSH_DATA (push, info->block[0] * info->block[1] * info->block[2]);
 343    PUSH_DATA (push, cp->num_barriers);
 344    BEGIN_NVC0(push, NVC0_CP(CP_GPR_ALLOC), 1);
 345    PUSH_DATA (push, cp->num_gprs);
 346
 347    /* launch preliminary setup */
 348    BEGIN_NVC0(push, NVC0_CP(GRIDID), 1);
 349    PUSH_DATA (push, 0x1);
 350    BEGIN_NVC0(push, SUBC_CP(0x036c), 1);
 351    PUSH_DATA (push, 0);
 352    BEGIN_NVC0(push, NVC0_CP(FLUSH), 1);
 353    PUSH_DATA (push, NVC0_COMPUTE_FLUSH_GLOBAL | NVC0_COMPUTE_FLUSH_UNK8);
 354
 355    /* block setup */
 356    BEGIN_NVC0(push, NVC0_CP(BLOCKDIM_YX), 2);
 357    PUSH_DATA (push, (info->block[1] << 16) | info->block[0]);
 358    PUSH_DATA (push, info->block[2]);
 359
 360    if (unlikely(info->indirect)) {
 361       struct nv04_resource *res = nv04_resource(info->indirect);
 362       uint32_t offset = res->offset + info->indirect_offset;
 363       unsigned macro = NVC0_CP_MACRO_LAUNCH_GRID_INDIRECT;
 364
 365       nouveau_pushbuf_space(push, 16, 0, 1);
 366       PUSH_REFN(push, res->bo, NOUVEAU_BO_RD | res->domain);
 367       PUSH_DATA(push, NVC0_FIFO_PKHDR_1I(1, macro, 3));
 368       nouveau_pushbuf_data(push, res->bo, offset,
 369                            NVC0_IB_ENTRY_1_NO_PREFETCH | 3 * 4);
 370    } else {
 371       /* grid setup */
 372       BEGIN_NVC0(push, NVC0_CP(GRIDDIM_YX), 2);
 373       PUSH_DATA (push, (info->grid[1] << 16) | info->grid[0]);
 374       PUSH_DATA (push, info->grid[2]);
 375
 376       /* kernel launching */
 377       BEGIN_NVC0(push, NVC0_CP(COMPUTE_BEGIN), 1);
 378       PUSH_DATA (push, 0);
 379       BEGIN_NVC0(push, SUBC_CP(0x0a08), 1);
 380       PUSH_DATA (push, 0);
 381       BEGIN_NVC0(push, NVC0_CP(LAUNCH), 1);
 382       PUSH_DATA (push, 0x1000);
 383       BEGIN_NVC0(push, NVC0_CP(COMPUTE_END), 1);
 384       PUSH_DATA (push, 0);
 385       BEGIN_NVC0(push, SUBC_CP(0x0360), 1);
 386       PUSH_DATA (push, 0x1);
 387    }
 388
 389    /* Invalidate all 3D constbufs because they are aliased with COMPUTE. */
 390    nvc0->dirty_3d |= NVC0_NEW_3D_CONSTBUF;
 391    for (s = 0; s < 5; s++) {
 392       nvc0->constbuf_dirty[s] |= nvc0->constbuf_valid[s];
 393       nvc0->state.uniform_buffer_bound[s] = 0;
 394    }
 395 }