src/gallium/drivers/nouveau/nvc0/nvc0_context.c

   1 /*
   2  * Copyright 2010 Christoph Bumiller
   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
  23 #include "pipe/p_defines.h"
  24 #include "util/u_framebuffer.h"
  25
  26 #include "nvc0/nvc0_context.h"
  27 #include "nvc0/nvc0_screen.h"
  28 #include "nvc0/nvc0_resource.h"
  29
  30 static void
  31 nvc0_flush(struct pipe_context *pipe,
  32            struct pipe_fence_handle **fence,
  33            unsigned flags)
  34 {
  35    struct nvc0_context *nvc0 = nvc0_context(pipe);
  36    struct nouveau_screen *screen = &nvc0->screen->base;
  37
  38    if (fence)
  39       nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
  40
  41    PUSH_KICK(nvc0->base.pushbuf); /* fencing handled in kick_notify */
  42
  43    nouveau_context_update_frame_stats(&nvc0->base);
  44 }
  45
  46 static void
  47 nvc0_texture_barrier(struct pipe_context *pipe)
  48 {
  49    struct nouveau_pushbuf *push = nvc0_context(pipe)->base.pushbuf;
  50
  51    IMMED_NVC0(push, NVC0_3D(SERIALIZE), 0);
  52    IMMED_NVC0(push, NVC0_3D(TEX_CACHE_CTL), 0);
  53 }
  54
  55 static void
  56 nvc0_memory_barrier(struct pipe_context *pipe, unsigned flags)
  57 {
  58    struct nvc0_context *nvc0 = nvc0_context(pipe);
  59    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
  60    int i, s;
  61
  62    if (flags & PIPE_BARRIER_MAPPED_BUFFER) {
  63       for (i = 0; i < nvc0->num_vtxbufs; ++i) {
  64          if (!nvc0->vtxbuf[i].buffer)
  65             continue;
  66          if (nvc0->vtxbuf[i].buffer->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT)
  67             nvc0->base.vbo_dirty = true;
  68       }
  69
  70       if (nvc0->idxbuf.buffer &&
  71           nvc0->idxbuf.buffer->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT)
  72          nvc0->base.vbo_dirty = true;
  73
  74       for (s = 0; s < 5 && !nvc0->cb_dirty; ++s) {
  75          uint32_t valid = nvc0->constbuf_valid[s];
  76
  77          while (valid && !nvc0->cb_dirty) {
  78             const unsigned i = ffs(valid) - 1;
  79             struct pipe_resource *res;
  80
  81             valid &= ~(1 << i);
  82             if (nvc0->constbuf[s][i].user)
  83                continue;
  84
  85             res = nvc0->constbuf[s][i].u.buf;
  86             if (!res)
  87                continue;
  88
  89             if (res->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT)
  90                nvc0->cb_dirty = true;
  91          }
  92       }
  93    }
  94    if (flags & PIPE_BARRIER_SHADER_BUFFER) {
  95       IMMED_NVC0(push, NVC0_3D(MEM_BARRIER), 0x1011);
  96    }
  97 }
  98
  99 static void
 100 nvc0_context_unreference_resources(struct nvc0_context *nvc0)
 101 {
 102    unsigned s, i;
 103
 104    nouveau_bufctx_del(&nvc0->bufctx_3d);
 105    nouveau_bufctx_del(&nvc0->bufctx);
 106    nouveau_bufctx_del(&nvc0->bufctx_cp);
 107
 108    util_unreference_framebuffer_state(&nvc0->framebuffer);
 109
 110    for (i = 0; i < nvc0->num_vtxbufs; ++i)
 111       pipe_resource_reference(&nvc0->vtxbuf[i].buffer, NULL);
 112
 113    pipe_resource_reference(&nvc0->idxbuf.buffer, NULL);
 114
 115    for (s = 0; s < 6; ++s) {
 116       for (i = 0; i < nvc0->num_textures[s]; ++i)
 117          pipe_sampler_view_reference(&nvc0->textures[s][i], NULL);
 118
 119       for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; ++i)
 120          if (!nvc0->constbuf[s][i].user)
 121             pipe_resource_reference(&nvc0->constbuf[s][i].u.buf, NULL);
 122    }
 123
 124    for (s = 0; s < 2; ++s) {
 125       for (i = 0; i < NVC0_MAX_SURFACE_SLOTS; ++i)
 126          pipe_surface_reference(&nvc0->surfaces[s][i], NULL);
 127    }
 128
 129    for (s = 0; s < 6; ++s)
 130       for (i = 0; i < NVC0_MAX_BUFFERS; ++i)
 131          pipe_resource_reference(&nvc0->buffers[s][i].buffer, NULL);
 132
 133    for (i = 0; i < nvc0->num_tfbbufs; ++i)
 134       pipe_so_target_reference(&nvc0->tfbbuf[i], NULL);
 135
 136    for (i = 0; i < nvc0->global_residents.size / sizeof(struct pipe_resource *);
 137         ++i) {
 138       struct pipe_resource **res = util_dynarray_element(
 139          &nvc0->global_residents, struct pipe_resource *, i);
 140       pipe_resource_reference(res, NULL);
 141    }
 142    util_dynarray_fini(&nvc0->global_residents);
 143
 144    if (nvc0->tcp_empty)
 145       nvc0->base.pipe.delete_tcs_state(&nvc0->base.pipe, nvc0->tcp_empty);
 146 }
 147
 148 static void
 149 nvc0_destroy(struct pipe_context *pipe)
 150 {
 151    struct nvc0_context *nvc0 = nvc0_context(pipe);
 152
 153    if (nvc0->screen->cur_ctx == nvc0) {
 154       nvc0->screen->cur_ctx = NULL;
 155       nvc0->screen->save_state = nvc0->state;
 156       nvc0->screen->save_state.tfb = NULL;
 157    }
 158
 159    /* Unset bufctx, we don't want to revalidate any resources after the flush.
 160     * Other contexts will always set their bufctx again on action calls.
 161     */
 162    nouveau_pushbuf_bufctx(nvc0->base.pushbuf, NULL);
 163    nouveau_pushbuf_kick(nvc0->base.pushbuf, nvc0->base.pushbuf->channel);
 164
 165    nvc0_context_unreference_resources(nvc0);
 166    nvc0_blitctx_destroy(nvc0);
 167
 168    nouveau_context_destroy(&nvc0->base);
 169 }
 170
 171 void
 172 nvc0_default_kick_notify(struct nouveau_pushbuf *push)
 173 {
 174    struct nvc0_screen *screen = push->user_priv;
 175
 176    if (screen) {
 177       nouveau_fence_next(&screen->base);
 178       nouveau_fence_update(&screen->base, true);
 179       if (screen->cur_ctx)
 180          screen->cur_ctx->state.flushed = true;
 181       NOUVEAU_DRV_STAT(&screen->base, pushbuf_count, 1);
 182    }
 183 }
 184
 185 static int
 186 nvc0_invalidate_resource_storage(struct nouveau_context *ctx,
 187                                  struct pipe_resource *res,
 188                                  int ref)
 189 {
 190    struct nvc0_context *nvc0 = nvc0_context(&ctx->pipe);
 191    unsigned s, i;
 192
 193    if (res->bind & PIPE_BIND_RENDER_TARGET) {
 194       for (i = 0; i < nvc0->framebuffer.nr_cbufs; ++i) {
 195          if (nvc0->framebuffer.cbufs[i] &&
 196              nvc0->framebuffer.cbufs[i]->texture == res) {
 197             nvc0->dirty |= NVC0_NEW_FRAMEBUFFER;
 198             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_FB);
 199             if (!--ref)
 200                return ref;
 201          }
 202       }
 203    }
 204    if (res->bind & PIPE_BIND_DEPTH_STENCIL) {
 205       if (nvc0->framebuffer.zsbuf &&
 206           nvc0->framebuffer.zsbuf->texture == res) {
 207          nvc0->dirty |= NVC0_NEW_FRAMEBUFFER;
 208          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_FB);
 209          if (!--ref)
 210             return ref;
 211       }
 212    }
 213
 214    if (res->target == PIPE_BUFFER) {
 215       for (i = 0; i < nvc0->num_vtxbufs; ++i) {
 216          if (nvc0->vtxbuf[i].buffer == res) {
 217             nvc0->dirty |= NVC0_NEW_ARRAYS;
 218             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_VTX);
 219             if (!--ref)
 220                return ref;
 221          }
 222       }
 223
 224       if (nvc0->idxbuf.buffer == res) {
 225          nvc0->dirty |= NVC0_NEW_IDXBUF;
 226          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_IDX);
 227          if (!--ref)
 228             return ref;
 229       }
 230
 231       for (s = 0; s < 5; ++s) {
 232       for (i = 0; i < nvc0->num_textures[s]; ++i) {
 233          if (nvc0->textures[s][i] &&
 234              nvc0->textures[s][i]->texture == res) {
 235             nvc0->textures_dirty[s] |= 1 << i;
 236             nvc0->dirty |= NVC0_NEW_TEXTURES;
 237             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_TEX(s, i));
 238             if (!--ref)
 239                return ref;
 240          }
 241       }
 242       }
 243
 244       for (s = 0; s < 5; ++s) {
 245       for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; ++i) {
 246          if (!(nvc0->constbuf_valid[s] & (1 << i)))
 247             continue;
 248          if (!nvc0->constbuf[s][i].user &&
 249              nvc0->constbuf[s][i].u.buf == res) {
 250             nvc0->dirty |= NVC0_NEW_CONSTBUF;
 251             nvc0->constbuf_dirty[s] |= 1 << i;
 252             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_CB(s, i));
 253             if (!--ref)
 254                return ref;
 255          }
 256       }
 257       }
 258
 259       for (s = 0; s < 5; ++s) {
 260       for (i = 0; i < NVC0_MAX_BUFFERS; ++i) {
 261          if (nvc0->buffers[s][i].buffer == res) {
 262             nvc0->buffers_dirty[s] |= 1 << i;
 263             nvc0->dirty |= NVC0_NEW_BUFFERS;
 264             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_BUF);
 265             if (!--ref)
 266                return ref;
 267          }
 268       }
 269       }
 270    }
 271
 272    return ref;
 273 }
 274
 275 static void
 276 nvc0_context_get_sample_position(struct pipe_context *, unsigned, unsigned,
 277                                  float *);
 278
 279 struct pipe_context *
 280 nvc0_create(struct pipe_screen *pscreen, void *priv, unsigned ctxflags)
 281 {
 282    struct nvc0_screen *screen = nvc0_screen(pscreen);
 283    struct nvc0_context *nvc0;
 284    struct pipe_context *pipe;
 285    int ret;
 286    uint32_t flags;
 287
 288    nvc0 = CALLOC_STRUCT(nvc0_context);
 289    if (!nvc0)
 290       return NULL;
 291    pipe = &nvc0->base.pipe;
 292
 293    if (!nvc0_blitctx_create(nvc0))
 294       goto out_err;
 295
 296    nvc0->base.pushbuf = screen->base.pushbuf;
 297    nvc0->base.client = screen->base.client;
 298
 299    ret = nouveau_bufctx_new(screen->base.client, 2, &nvc0->bufctx);
 300    if (!ret)
 301       ret = nouveau_bufctx_new(screen->base.client, NVC0_BIND_3D_COUNT,
 302                                &nvc0->bufctx_3d);
 303    if (!ret)
 304       ret = nouveau_bufctx_new(screen->base.client, NVC0_BIND_CP_COUNT,
 305                                &nvc0->bufctx_cp);
 306    if (ret)
 307       goto out_err;
 308
 309    nvc0->screen = screen;
 310    nvc0->base.screen = &screen->base;
 311
 312    pipe->screen = pscreen;
 313    pipe->priv = priv;
 314
 315    pipe->destroy = nvc0_destroy;
 316
 317    pipe->draw_vbo = nvc0_draw_vbo;
 318    pipe->clear = nvc0_clear;
 319    pipe->launch_grid = (nvc0->screen->base.class_3d >= NVE4_3D_CLASS) ?
 320       nve4_launch_grid : nvc0_launch_grid;
 321
 322    pipe->flush = nvc0_flush;
 323    pipe->texture_barrier = nvc0_texture_barrier;
 324    pipe->memory_barrier = nvc0_memory_barrier;
 325    pipe->get_sample_position = nvc0_context_get_sample_position;
 326
 327    nouveau_context_init(&nvc0->base);
 328    nvc0_init_query_functions(nvc0);
 329    nvc0_init_surface_functions(nvc0);
 330    nvc0_init_state_functions(nvc0);
 331    nvc0_init_transfer_functions(nvc0);
 332    nvc0_init_resource_functions(pipe);
 333
 334    nvc0->base.invalidate_resource_storage = nvc0_invalidate_resource_storage;
 335
 336    pipe->create_video_codec = nvc0_create_decoder;
 337    pipe->create_video_buffer = nvc0_video_buffer_create;
 338
 339    /* shader builtin library is per-screen, but we need a context for m2mf */
 340    nvc0_program_library_upload(nvc0);
 341    nvc0_program_init_tcp_empty(nvc0);
 342    if (!nvc0->tcp_empty)
 343       goto out_err;
 344    /* set the empty tctl prog on next draw in case one is never set */
 345    nvc0->dirty |= NVC0_NEW_TCTLPROG;
 346
 347    /* now that there are no more opportunities for errors, set the current
 348     * context if there isn't already one.
 349     */
 350    if (!screen->cur_ctx) {
 351       nvc0->state = screen->save_state;
 352       screen->cur_ctx = nvc0;
 353       nouveau_pushbuf_bufctx(screen->base.pushbuf, nvc0->bufctx);
 354    }
 355    screen->base.pushbuf->kick_notify = nvc0_default_kick_notify;
 356
 357    /* add permanently resident buffers to bufctxts */
 358
 359    flags = NV_VRAM_DOMAIN(&screen->base) | NOUVEAU_BO_RD;
 360
 361    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->text);
 362    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->uniform_bo);
 363    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->txc);
 364    if (screen->compute) {
 365       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->text);
 366       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->txc);
 367       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->parm);
 368    }
 369
 370    flags = NV_VRAM_DOMAIN(&screen->base) | NOUVEAU_BO_RDWR;
 371
 372    if (screen->poly_cache)
 373       BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->poly_cache);
 374    if (screen->compute)
 375       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->tls);
 376
 377    flags = NOUVEAU_BO_GART | NOUVEAU_BO_WR;
 378
 379    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->fence.bo);
 380    BCTX_REFN_bo(nvc0->bufctx, FENCE, flags, screen->fence.bo);
 381    if (screen->compute)
 382       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->fence.bo);
 383
 384    nvc0->base.scratch.bo_size = 2 << 20;
 385
 386    memset(nvc0->tex_handles, ~0, sizeof(nvc0->tex_handles));
 387
 388    util_dynarray_init(&nvc0->global_residents);
 389
 390    return pipe;
 391
 392 out_err:
 393    if (nvc0) {
 394       if (nvc0->bufctx_3d)
 395          nouveau_bufctx_del(&nvc0->bufctx_3d);
 396       if (nvc0->bufctx_cp)
 397          nouveau_bufctx_del(&nvc0->bufctx_cp);
 398       if (nvc0->bufctx)
 399          nouveau_bufctx_del(&nvc0->bufctx);
 400       FREE(nvc0->blit);
 401       FREE(nvc0);
 402    }
 403    return NULL;
 404 }
 405
 406 void
 407 nvc0_bufctx_fence(struct nvc0_context *nvc0, struct nouveau_bufctx *bufctx,
 408                   bool on_flush)
 409 {
 410    struct nouveau_list *list = on_flush ? &bufctx->current : &bufctx->pending;
 411    struct nouveau_list *it;
 412    NOUVEAU_DRV_STAT_IFD(unsigned count = 0);
 413
 414    for (it = list->next; it != list; it = it->next) {
 415       struct nouveau_bufref *ref = (struct nouveau_bufref *)it;
 416       struct nv04_resource *res = ref->priv;
 417       if (res)
 418          nvc0_resource_validate(res, (unsigned)ref->priv_data);
 419       NOUVEAU_DRV_STAT_IFD(count++);
 420    }
 421    NOUVEAU_DRV_STAT(&nvc0->screen->base, resource_validate_count, count);
 422 }
 423
 424 static void
 425 nvc0_context_get_sample_position(struct pipe_context *pipe,
 426                                  unsigned sample_count, unsigned sample_index,
 427                                  float *xy)
 428 {
 429    static const uint8_t ms1[1][2] = { { 0x8, 0x8 } };
 430    static const uint8_t ms2[2][2] = {
 431       { 0x4, 0x4 }, { 0xc, 0xc } }; /* surface coords (0,0), (1,0) */
 432    static const uint8_t ms4[4][2] = {
 433       { 0x6, 0x2 }, { 0xe, 0x6 },   /* (0,0), (1,0) */
 434       { 0x2, 0xa }, { 0xa, 0xe } }; /* (0,1), (1,1) */
 435    static const uint8_t ms8[8][2] = {
 436       { 0x1, 0x7 }, { 0x5, 0x3 },   /* (0,0), (1,0) */
 437       { 0x3, 0xd }, { 0x7, 0xb },   /* (0,1), (1,1) */
 438       { 0x9, 0x5 }, { 0xf, 0x1 },   /* (2,0), (3,0) */
 439       { 0xb, 0xf }, { 0xd, 0x9 } }; /* (2,1), (3,1) */
 440 #if 0
 441    /* NOTE: there are alternative modes for MS2 and MS8, currently not used */
 442    static const uint8_t ms8_alt[8][2] = {
 443       { 0x9, 0x5 }, { 0x7, 0xb },   /* (2,0), (1,1) */
 444       { 0xd, 0x9 }, { 0x5, 0x3 },   /* (3,1), (1,0) */
 445       { 0x3, 0xd }, { 0x1, 0x7 },   /* (0,1), (0,0) */
 446       { 0xb, 0xf }, { 0xf, 0x1 } }; /* (2,1), (3,0) */
 447 #endif
 448
 449    const uint8_t (*ptr)[2];
 450
 451    switch (sample_count) {
 452    case 0:
 453    case 1: ptr = ms1; break;
 454    case 2: ptr = ms2; break;
 455    case 4: ptr = ms4; break;
 456    case 8: ptr = ms8; break;
 457    default:
 458       assert(0);
 459       return; /* bad sample count -> undefined locations */
 460    }
 461    xy[0] = ptr[sample_index][0] * 0.0625f;
 462    xy[1] = ptr[sample_index][1] * 0.0625f;
 463 }