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 bind = res->bind ? res->bind : PIPE_BIND_VERTEX_BUFFER;
 184    unsigned s, i;
 185
 186    if (bind & PIPE_BIND_RENDER_TARGET) {
 187       for (i = 0; i < nvc0->framebuffer.nr_cbufs; ++i) {
 188          if (nvc0->framebuffer.cbufs[i] &&
 189              nvc0->framebuffer.cbufs[i]->texture == res) {
 190             nvc0->dirty |= NVC0_NEW_FRAMEBUFFER;
 191             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_FB);
 192             if (!--ref)
 193                return ref;
 194          }
 195       }
 196    }
 197    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 198       if (nvc0->framebuffer.zsbuf &&
 199           nvc0->framebuffer.zsbuf->texture == res) {
 200          nvc0->dirty |= NVC0_NEW_FRAMEBUFFER;
 201          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_FB);
 202          if (!--ref)
 203             return ref;
 204       }
 205    }
 206
 207    if (bind & (PIPE_BIND_VERTEX_BUFFER |
 208                PIPE_BIND_INDEX_BUFFER |
 209                PIPE_BIND_CONSTANT_BUFFER |
 210                PIPE_BIND_STREAM_OUTPUT |
 211                PIPE_BIND_COMMAND_ARGS_BUFFER |
 212                PIPE_BIND_SAMPLER_VIEW)) {
 213       for (i = 0; i < nvc0->num_vtxbufs; ++i) {
 214          if (nvc0->vtxbuf[i].buffer == res) {
 215             nvc0->dirty |= NVC0_NEW_ARRAYS;
 216             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_VTX);
 217             if (!--ref)
 218                return ref;
 219          }
 220       }
 221
 222       if (nvc0->idxbuf.buffer == res) {
 223          nvc0->dirty |= NVC0_NEW_IDXBUF;
 224          nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_IDX);
 225          if (!--ref)
 226             return ref;
 227       }
 228
 229       for (s = 0; s < 5; ++s) {
 230       for (i = 0; i < nvc0->num_textures[s]; ++i) {
 231          if (nvc0->textures[s][i] &&
 232              nvc0->textures[s][i]->texture == res) {
 233             nvc0->textures_dirty[s] |= 1 << i;
 234             nvc0->dirty |= NVC0_NEW_TEXTURES;
 235             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_TEX(s, i));
 236             if (!--ref)
 237                return ref;
 238          }
 239       }
 240       }
 241
 242       for (s = 0; s < 5; ++s) {
 243       for (i = 0; i < NVC0_MAX_PIPE_CONSTBUFS; ++i) {
 244          if (!(nvc0->constbuf_valid[s] & (1 << i)))
 245             continue;
 246          if (!nvc0->constbuf[s][i].user &&
 247              nvc0->constbuf[s][i].u.buf == res) {
 248             nvc0->dirty |= NVC0_NEW_CONSTBUF;
 249             nvc0->constbuf_dirty[s] |= 1 << i;
 250             nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_CB(s, i));
 251             if (!--ref)
 252                return ref;
 253          }
 254       }
 255       }
 256    }
 257
 258    return ref;
 259 }
 260
 261 static void
 262 nvc0_context_get_sample_position(struct pipe_context *, unsigned, unsigned,
 263                                  float *);
 264
 265 struct pipe_context *
 266 nvc0_create(struct pipe_screen *pscreen, void *priv, unsigned ctxflags)
 267 {
 268    struct nvc0_screen *screen = nvc0_screen(pscreen);
 269    struct nvc0_context *nvc0;
 270    struct pipe_context *pipe;
 271    int ret;
 272    uint32_t flags;
 273
 274    nvc0 = CALLOC_STRUCT(nvc0_context);
 275    if (!nvc0)
 276       return NULL;
 277    pipe = &nvc0->base.pipe;
 278
 279    if (!nvc0_blitctx_create(nvc0))
 280       goto out_err;
 281
 282    nvc0->base.pushbuf = screen->base.pushbuf;
 283    nvc0->base.client = screen->base.client;
 284
 285    ret = nouveau_bufctx_new(screen->base.client, 2, &nvc0->bufctx);
 286    if (!ret)
 287       ret = nouveau_bufctx_new(screen->base.client, NVC0_BIND_3D_COUNT,
 288                                &nvc0->bufctx_3d);
 289    if (!ret)
 290       ret = nouveau_bufctx_new(screen->base.client, NVC0_BIND_CP_COUNT,
 291                                &nvc0->bufctx_cp);
 292    if (ret)
 293       goto out_err;
 294
 295    nvc0->screen = screen;
 296    nvc0->base.screen = &screen->base;
 297
 298    pipe->screen = pscreen;
 299    pipe->priv = priv;
 300
 301    pipe->destroy = nvc0_destroy;
 302
 303    pipe->draw_vbo = nvc0_draw_vbo;
 304    pipe->clear = nvc0_clear;
 305    pipe->launch_grid = (nvc0->screen->base.class_3d >= NVE4_3D_CLASS) ?
 306       nve4_launch_grid : nvc0_launch_grid;
 307
 308    pipe->flush = nvc0_flush;
 309    pipe->texture_barrier = nvc0_texture_barrier;
 310    pipe->memory_barrier = nvc0_memory_barrier;
 311    pipe->get_sample_position = nvc0_context_get_sample_position;
 312
 313    nouveau_context_init(&nvc0->base);
 314    nvc0_init_query_functions(nvc0);
 315    nvc0_init_surface_functions(nvc0);
 316    nvc0_init_state_functions(nvc0);
 317    nvc0_init_transfer_functions(nvc0);
 318    nvc0_init_resource_functions(pipe);
 319
 320    nvc0->base.invalidate_resource_storage = nvc0_invalidate_resource_storage;
 321
 322    pipe->create_video_codec = nvc0_create_decoder;
 323    pipe->create_video_buffer = nvc0_video_buffer_create;
 324
 325    /* shader builtin library is per-screen, but we need a context for m2mf */
 326    nvc0_program_library_upload(nvc0);
 327    nvc0_program_init_tcp_empty(nvc0);
 328    if (!nvc0->tcp_empty)
 329       goto out_err;
 330    /* set the empty tctl prog on next draw in case one is never set */
 331    nvc0->dirty |= NVC0_NEW_TCTLPROG;
 332
 333    /* now that there are no more opportunities for errors, set the current
 334     * context if there isn't already one.
 335     */
 336    if (!screen->cur_ctx) {
 337       nvc0->state = screen->save_state;
 338       screen->cur_ctx = nvc0;
 339       nouveau_pushbuf_bufctx(screen->base.pushbuf, nvc0->bufctx);
 340    }
 341    screen->base.pushbuf->kick_notify = nvc0_default_kick_notify;
 342
 343    /* add permanently resident buffers to bufctxts */
 344
 345    flags = NV_VRAM_DOMAIN(&screen->base) | NOUVEAU_BO_RD;
 346
 347    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->text);
 348    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->uniform_bo);
 349    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->txc);
 350    if (screen->compute) {
 351       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->text);
 352       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->txc);
 353       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->parm);
 354    }
 355
 356    flags = NV_VRAM_DOMAIN(&screen->base) | NOUVEAU_BO_RDWR;
 357
 358    if (screen->poly_cache)
 359       BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->poly_cache);
 360    if (screen->compute)
 361       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->tls);
 362
 363    flags = NOUVEAU_BO_GART | NOUVEAU_BO_WR;
 364
 365    BCTX_REFN_bo(nvc0->bufctx_3d, SCREEN, flags, screen->fence.bo);
 366    BCTX_REFN_bo(nvc0->bufctx, FENCE, flags, screen->fence.bo);
 367    if (screen->compute)
 368       BCTX_REFN_bo(nvc0->bufctx_cp, CP_SCREEN, flags, screen->fence.bo);
 369
 370    nvc0->base.scratch.bo_size = 2 << 20;
 371
 372    memset(nvc0->tex_handles, ~0, sizeof(nvc0->tex_handles));
 373
 374    util_dynarray_init(&nvc0->global_residents);
 375
 376    return pipe;
 377
 378 out_err:
 379    if (nvc0) {
 380       if (nvc0->bufctx_3d)
 381          nouveau_bufctx_del(&nvc0->bufctx_3d);
 382       if (nvc0->bufctx_cp)
 383          nouveau_bufctx_del(&nvc0->bufctx_cp);
 384       if (nvc0->bufctx)
 385          nouveau_bufctx_del(&nvc0->bufctx);
 386       FREE(nvc0->blit);
 387       FREE(nvc0);
 388    }
 389    return NULL;
 390 }
 391
 392 void
 393 nvc0_bufctx_fence(struct nvc0_context *nvc0, struct nouveau_bufctx *bufctx,
 394                   bool on_flush)
 395 {
 396    struct nouveau_list *list = on_flush ? &bufctx->current : &bufctx->pending;
 397    struct nouveau_list *it;
 398    NOUVEAU_DRV_STAT_IFD(unsigned count = 0);
 399
 400    for (it = list->next; it != list; it = it->next) {
 401       struct nouveau_bufref *ref = (struct nouveau_bufref *)it;
 402       struct nv04_resource *res = ref->priv;
 403       if (res)
 404          nvc0_resource_validate(res, (unsigned)ref->priv_data);
 405       NOUVEAU_DRV_STAT_IFD(count++);
 406    }
 407    NOUVEAU_DRV_STAT(&nvc0->screen->base, resource_validate_count, count);
 408 }
 409
 410 static void
 411 nvc0_context_get_sample_position(struct pipe_context *pipe,
 412                                  unsigned sample_count, unsigned sample_index,
 413                                  float *xy)
 414 {
 415    static const uint8_t ms1[1][2] = { { 0x8, 0x8 } };
 416    static const uint8_t ms2[2][2] = {
 417       { 0x4, 0x4 }, { 0xc, 0xc } }; /* surface coords (0,0), (1,0) */
 418    static const uint8_t ms4[4][2] = {
 419       { 0x6, 0x2 }, { 0xe, 0x6 },   /* (0,0), (1,0) */
 420       { 0x2, 0xa }, { 0xa, 0xe } }; /* (0,1), (1,1) */
 421    static const uint8_t ms8[8][2] = {
 422       { 0x1, 0x7 }, { 0x5, 0x3 },   /* (0,0), (1,0) */
 423       { 0x3, 0xd }, { 0x7, 0xb },   /* (0,1), (1,1) */
 424       { 0x9, 0x5 }, { 0xf, 0x1 },   /* (2,0), (3,0) */
 425       { 0xb, 0xf }, { 0xd, 0x9 } }; /* (2,1), (3,1) */
 426 #if 0
 427    /* NOTE: there are alternative modes for MS2 and MS8, currently not used */
 428    static const uint8_t ms8_alt[8][2] = {
 429       { 0x9, 0x5 }, { 0x7, 0xb },   /* (2,0), (1,1) */
 430       { 0xd, 0x9 }, { 0x5, 0x3 },   /* (3,1), (1,0) */
 431       { 0x3, 0xd }, { 0x1, 0x7 },   /* (0,1), (0,0) */
 432       { 0xb, 0xf }, { 0xf, 0x1 } }; /* (2,1), (3,0) */
 433 #endif
 434
 435    const uint8_t (*ptr)[2];
 436
 437    switch (sample_count) {
 438    case 0:
 439    case 1: ptr = ms1; break;
 440    case 2: ptr = ms2; break;
 441    case 4: ptr = ms4; break;
 442    case 8: ptr = ms8; break;
 443    default:
 444       assert(0);
 445       return; /* bad sample count -> undefined locations */
 446    }
 447    xy[0] = ptr[sample_index][0] * 0.0625f;
 448    xy[1] = ptr[sample_index][1] * 0.0625f;
 449 }