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