src/gallium/drivers/nouveau/nv50/nv50_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 #include "util/u_upload_mgr.h"
  26
  27 #include "nv50/nv50_context.h"
  28 #include "nv50/nv50_screen.h"
  29 #include "nv50/nv50_resource.h"
  30
  31 static void
  32 nv50_flush(struct pipe_context *pipe,
  33            struct pipe_fence_handle **fence,
  34            unsigned flags)
  35 {
  36    struct nouveau_screen *screen = nouveau_screen(pipe->screen);
  37
  38    if (fence)
  39       nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
  40
  41    PUSH_KICK(screen->pushbuf);
  42
  43    nouveau_context_update_frame_stats(nouveau_context(pipe));
  44 }
  45
  46 static void
  47 nv50_texture_barrier(struct pipe_context *pipe, unsigned flags)
  48 {
  49    struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
  50
  51    BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
  52    PUSH_DATA (push, 0);
  53    BEGIN_NV04(push, NV50_3D(TEX_CACHE_CTL), 1);
  54    PUSH_DATA (push, 0x20);
  55 }
  56
  57 static void
  58 nv50_memory_barrier(struct pipe_context *pipe, unsigned flags)
  59 {
  60    struct nv50_context *nv50 = nv50_context(pipe);
  61    int i, s;
  62
  63    if (flags & PIPE_BARRIER_MAPPED_BUFFER) {
  64       for (i = 0; i < nv50->num_vtxbufs; ++i) {
  65          if (!nv50->vtxbuf[i].buffer.resource && !nv50->vtxbuf[i].is_user_buffer)
  66             continue;
  67          if (nv50->vtxbuf[i].buffer.resource->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT)
  68             nv50->base.vbo_dirty = true;
  69       }
  70
  71       for (s = 0; s < 3 && !nv50->cb_dirty; ++s) {
  72          uint32_t valid = nv50->constbuf_valid[s];
  73
  74          while (valid && !nv50->cb_dirty) {
  75             const unsigned i = ffs(valid) - 1;
  76             struct pipe_resource *res;
  77
  78             valid &= ~(1 << i);
  79             if (nv50->constbuf[s][i].user)
  80                continue;
  81
  82             res = nv50->constbuf[s][i].u.buf;
  83             if (!res)
  84                continue;
  85
  86             if (res->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT)
  87                nv50->cb_dirty = true;
  88          }
  89       }
  90    }
  91 }
  92
  93 static void
  94 nv50_emit_string_marker(struct pipe_context *pipe, const char *str, int len)
  95 {
  96    struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
  97    int string_words = len / 4;
  98    int data_words;
  99
 100    if (len <= 0)
 101       return;
 102    string_words = MIN2(string_words, NV04_PFIFO_MAX_PACKET_LEN);
 103    if (string_words == NV04_PFIFO_MAX_PACKET_LEN)
 104       data_words = string_words;
 105    else
 106       data_words = string_words + !!(len & 3);
 107    BEGIN_NI04(push, SUBC_3D(NV04_GRAPH_NOP), data_words);
 108    if (string_words)
 109       PUSH_DATAp(push, str, string_words);
 110    if (string_words != data_words) {
 111       int data = 0;
 112       memcpy(&data, &str[string_words * 4], len & 3);
 113       PUSH_DATA (push, data);
 114    }
 115 }
 116
 117 void
 118 nv50_default_kick_notify(struct nouveau_pushbuf *push)
 119 {
 120    struct nv50_screen *screen = push->user_priv;
 121
 122    if (screen) {
 123       nouveau_fence_next(&screen->base);
 124       nouveau_fence_update(&screen->base, true);
 125       if (screen->cur_ctx)
 126          screen->cur_ctx->state.flushed = true;
 127    }
 128 }
 129
 130 static void
 131 nv50_context_unreference_resources(struct nv50_context *nv50)
 132 {
 133    unsigned s, i;
 134
 135    nouveau_bufctx_del(&nv50->bufctx_3d);
 136    nouveau_bufctx_del(&nv50->bufctx);
 137    nouveau_bufctx_del(&nv50->bufctx_cp);
 138
 139    util_unreference_framebuffer_state(&nv50->framebuffer);
 140
 141    assert(nv50->num_vtxbufs <= PIPE_MAX_ATTRIBS);
 142    for (i = 0; i < nv50->num_vtxbufs; ++i)
 143       pipe_vertex_buffer_unreference(&nv50->vtxbuf[i]);
 144
 145    for (s = 0; s < 3; ++s) {
 146       assert(nv50->num_textures[s] <= PIPE_MAX_SAMPLERS);
 147       for (i = 0; i < nv50->num_textures[s]; ++i)
 148          pipe_sampler_view_reference(&nv50->textures[s][i], NULL);
 149
 150       for (i = 0; i < NV50_MAX_PIPE_CONSTBUFS; ++i)
 151          if (!nv50->constbuf[s][i].user)
 152             pipe_resource_reference(&nv50->constbuf[s][i].u.buf, NULL);
 153    }
 154
 155    for (i = 0; i < nv50->global_residents.size / sizeof(struct pipe_resource *);
 156         ++i) {
 157       struct pipe_resource **res = util_dynarray_element(
 158          &nv50->global_residents, struct pipe_resource *, i);
 159       pipe_resource_reference(res, NULL);
 160    }
 161    util_dynarray_fini(&nv50->global_residents);
 162 }
 163
 164 static void
 165 nv50_destroy(struct pipe_context *pipe)
 166 {
 167    struct nv50_context *nv50 = nv50_context(pipe);
 168
 169    if (nv50->screen->cur_ctx == nv50) {
 170       nv50->screen->cur_ctx = NULL;
 171       /* Save off the state in case another context gets created */
 172       nv50->screen->save_state = nv50->state;
 173    }
 174
 175    if (nv50->base.pipe.stream_uploader)
 176       u_upload_destroy(nv50->base.pipe.stream_uploader);
 177
 178    nouveau_pushbuf_bufctx(nv50->base.pushbuf, NULL);
 179    nouveau_pushbuf_kick(nv50->base.pushbuf, nv50->base.pushbuf->channel);
 180
 181    nv50_context_unreference_resources(nv50);
 182
 183    FREE(nv50->blit);
 184
 185    nouveau_context_destroy(&nv50->base);
 186 }
 187
 188 static int
 189 nv50_invalidate_resource_storage(struct nouveau_context *ctx,
 190                                  struct pipe_resource *res,
 191                                  int ref)
 192 {
 193    struct nv50_context *nv50 = nv50_context(&ctx->pipe);
 194    unsigned bind = res->bind ? res->bind : PIPE_BIND_VERTEX_BUFFER;
 195    unsigned s, i;
 196
 197    if (bind & PIPE_BIND_RENDER_TARGET) {
 198       assert(nv50->framebuffer.nr_cbufs <= PIPE_MAX_COLOR_BUFS);
 199       for (i = 0; i < nv50->framebuffer.nr_cbufs; ++i) {
 200          if (nv50->framebuffer.cbufs[i] &&
 201              nv50->framebuffer.cbufs[i]->texture == res) {
 202             nv50->dirty_3d |= NV50_NEW_3D_FRAMEBUFFER;
 203             nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_FB);
 204             if (!--ref)
 205                return ref;
 206          }
 207       }
 208    }
 209    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 210       if (nv50->framebuffer.zsbuf &&
 211           nv50->framebuffer.zsbuf->texture == res) {
 212          nv50->dirty_3d |= NV50_NEW_3D_FRAMEBUFFER;
 213          nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_FB);
 214          if (!--ref)
 215             return ref;
 216       }
 217    }
 218
 219    if (bind & (PIPE_BIND_VERTEX_BUFFER |
 220                PIPE_BIND_INDEX_BUFFER |
 221                PIPE_BIND_CONSTANT_BUFFER |
 222                PIPE_BIND_STREAM_OUTPUT |
 223                PIPE_BIND_SAMPLER_VIEW)) {
 224
 225       assert(nv50->num_vtxbufs <= PIPE_MAX_ATTRIBS);
 226       for (i = 0; i < nv50->num_vtxbufs; ++i) {
 227          if (nv50->vtxbuf[i].buffer.resource == res) {
 228             nv50->dirty_3d |= NV50_NEW_3D_ARRAYS;
 229             nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_VERTEX);
 230             if (!--ref)
 231                return ref;
 232          }
 233       }
 234
 235       for (s = 0; s < 3; ++s) {
 236       assert(nv50->num_textures[s] <= PIPE_MAX_SAMPLERS);
 237       for (i = 0; i < nv50->num_textures[s]; ++i) {
 238          if (nv50->textures[s][i] &&
 239              nv50->textures[s][i]->texture == res) {
 240             nv50->dirty_3d |= NV50_NEW_3D_TEXTURES;
 241             nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_TEXTURES);
 242             if (!--ref)
 243                return ref;
 244          }
 245       }
 246       }
 247
 248       for (s = 0; s < 3; ++s) {
 249       for (i = 0; i < NV50_MAX_PIPE_CONSTBUFS; ++i) {
 250          if (!(nv50->constbuf_valid[s] & (1 << i)))
 251             continue;
 252          if (!nv50->constbuf[s][i].user &&
 253              nv50->constbuf[s][i].u.buf == res) {
 254             nv50->dirty_3d |= NV50_NEW_3D_CONSTBUF;
 255             nv50->constbuf_dirty[s] |= 1 << i;
 256             nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_CB(s, i));
 257             if (!--ref)
 258                return ref;
 259          }
 260       }
 261       }
 262    }
 263
 264    return ref;
 265 }
 266
 267 static void
 268 nv50_context_get_sample_position(struct pipe_context *, unsigned, unsigned,
 269                                  float *);
 270
 271 struct pipe_context *
 272 nv50_create(struct pipe_screen *pscreen, void *priv, unsigned ctxflags)
 273 {
 274    struct nv50_screen *screen = nv50_screen(pscreen);
 275    struct nv50_context *nv50;
 276    struct pipe_context *pipe;
 277    int ret;
 278    uint32_t flags;
 279
 280    nv50 = CALLOC_STRUCT(nv50_context);
 281    if (!nv50)
 282       return NULL;
 283    pipe = &nv50->base.pipe;
 284
 285    if (!nv50_blitctx_create(nv50))
 286       goto out_err;
 287
 288    nv50->base.pushbuf = screen->base.pushbuf;
 289    nv50->base.client = screen->base.client;
 290
 291    ret = nouveau_bufctx_new(screen->base.client, 2, &nv50->bufctx);
 292    if (!ret)
 293       ret = nouveau_bufctx_new(screen->base.client, NV50_BIND_3D_COUNT,
 294                                &nv50->bufctx_3d);
 295    if (!ret)
 296       ret = nouveau_bufctx_new(screen->base.client, NV50_BIND_CP_COUNT,
 297                                &nv50->bufctx_cp);
 298    if (ret)
 299       goto out_err;
 300
 301    nv50->base.screen    = &screen->base;
 302    nv50->base.copy_data = nv50_m2mf_copy_linear;
 303    nv50->base.push_data = nv50_sifc_linear_u8;
 304    nv50->base.push_cb   = nv50_cb_push;
 305
 306    nv50->screen = screen;
 307    pipe->screen = pscreen;
 308    pipe->priv = priv;
 309    pipe->stream_uploader = u_upload_create_default(pipe);
 310    if (!pipe->stream_uploader)
 311       goto out_err;
 312    pipe->const_uploader = pipe->stream_uploader;
 313
 314    pipe->destroy = nv50_destroy;
 315
 316    pipe->draw_vbo = nv50_draw_vbo;
 317    pipe->clear = nv50_clear;
 318    pipe->launch_grid = nv50_launch_grid;
 319
 320    pipe->flush = nv50_flush;
 321    pipe->texture_barrier = nv50_texture_barrier;
 322    pipe->memory_barrier = nv50_memory_barrier;
 323    pipe->get_sample_position = nv50_context_get_sample_position;
 324    pipe->emit_string_marker = nv50_emit_string_marker;
 325
 326    if (!screen->cur_ctx) {
 327       /* Restore the last context's state here, normally handled during
 328        * context switch
 329        */
 330       nv50->state = screen->save_state;
 331       screen->cur_ctx = nv50;
 332       nouveau_pushbuf_bufctx(screen->base.pushbuf, nv50->bufctx);
 333    }
 334    nv50->base.pushbuf->kick_notify = nv50_default_kick_notify;
 335
 336    nouveau_context_init(&nv50->base);
 337    nv50_init_query_functions(nv50);
 338    nv50_init_surface_functions(nv50);
 339    nv50_init_state_functions(nv50);
 340    nv50_init_resource_functions(pipe);
 341
 342    nv50->base.invalidate_resource_storage = nv50_invalidate_resource_storage;
 343
 344    if (screen->base.device->chipset < 0x84 ||
 345        debug_get_bool_option("NOUVEAU_PMPEG", false)) {
 346       /* PMPEG */
 347       nouveau_context_init_vdec(&nv50->base);
 348    } else if (screen->base.device->chipset < 0x98 ||
 349               screen->base.device->chipset == 0xa0) {
 350       /* VP2 */
 351       pipe->create_video_codec = nv84_create_decoder;
 352       pipe->create_video_buffer = nv84_video_buffer_create;
 353    } else {
 354       /* VP3/4 */
 355       pipe->create_video_codec = nv98_create_decoder;
 356       pipe->create_video_buffer = nv98_video_buffer_create;
 357    }
 358
 359    flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD;
 360
 361    BCTX_REFN_bo(nv50->bufctx_3d, 3D_SCREEN, flags, screen->code);
 362    BCTX_REFN_bo(nv50->bufctx_3d, 3D_SCREEN, flags, screen->uniforms);
 363    BCTX_REFN_bo(nv50->bufctx_3d, 3D_SCREEN, flags, screen->txc);
 364    BCTX_REFN_bo(nv50->bufctx_3d, 3D_SCREEN, flags, screen->stack_bo);
 365    if (screen->compute) {
 366       BCTX_REFN_bo(nv50->bufctx_cp, CP_SCREEN, flags, screen->code);
 367       BCTX_REFN_bo(nv50->bufctx_cp, CP_SCREEN, flags, screen->txc);
 368       BCTX_REFN_bo(nv50->bufctx_cp, CP_SCREEN, flags, screen->stack_bo);
 369    }
 370
 371    flags = NOUVEAU_BO_GART | NOUVEAU_BO_WR;
 372
 373    BCTX_REFN_bo(nv50->bufctx_3d, 3D_SCREEN, flags, screen->fence.bo);
 374    BCTX_REFN_bo(nv50->bufctx, FENCE, flags, screen->fence.bo);
 375    if (screen->compute)
 376       BCTX_REFN_bo(nv50->bufctx_cp, CP_SCREEN, flags, screen->fence.bo);
 377
 378    nv50->base.scratch.bo_size = 2 << 20;
 379
 380    util_dynarray_init(&nv50->global_residents, NULL);
 381
 382    // Make sure that the first TSC entry has SRGB conversion bit set, since we
 383    // use it as a fallback.
 384    if (!screen->tsc.entries[0])
 385       nv50_upload_tsc0(nv50);
 386
 387    // And mark samplers as dirty so that the first slot would get bound to the
 388    // zero entry if it's not otherwise set.
 389    nv50->dirty_3d |= NV50_NEW_3D_SAMPLERS;
 390
 391    return pipe;
 392
 393 out_err:
 394    if (pipe->stream_uploader)
 395       u_upload_destroy(pipe->stream_uploader);
 396    if (nv50->bufctx_3d)
 397       nouveau_bufctx_del(&nv50->bufctx_3d);
 398    if (nv50->bufctx_cp)
 399       nouveau_bufctx_del(&nv50->bufctx_cp);
 400    if (nv50->bufctx)
 401       nouveau_bufctx_del(&nv50->bufctx);
 402    FREE(nv50->blit);
 403    FREE(nv50);
 404    return NULL;
 405 }
 406
 407 void
 408 nv50_bufctx_fence(struct nouveau_bufctx *bufctx, bool on_flush)
 409 {
 410    struct nouveau_list *list = on_flush ? &bufctx->current : &bufctx->pending;
 411    struct nouveau_list *it;
 412
 413    for (it = list->next; it != list; it = it->next) {
 414       struct nouveau_bufref *ref = (struct nouveau_bufref *)it;
 415       struct nv04_resource *res = ref->priv;
 416       if (res)
 417          nv50_resource_validate(res, (unsigned)ref->priv_data);
 418    }
 419 }
 420
 421 static void
 422 nv50_context_get_sample_position(struct pipe_context *pipe,
 423                                  unsigned sample_count, unsigned sample_index,
 424                                  float *xy)
 425 {
 426    static const uint8_t ms1[1][2] = { { 0x8, 0x8 } };
 427    static const uint8_t ms2[2][2] = {
 428       { 0x4, 0x4 }, { 0xc, 0xc } }; /* surface coords (0,0), (1,0) */
 429    static const uint8_t ms4[4][2] = {
 430       { 0x6, 0x2 }, { 0xe, 0x6 },   /* (0,0), (1,0) */
 431       { 0x2, 0xa }, { 0xa, 0xe } }; /* (0,1), (1,1) */
 432    static const uint8_t ms8[8][2] = {
 433       { 0x1, 0x7 }, { 0x5, 0x3 },   /* (0,0), (1,0) */
 434       { 0x3, 0xd }, { 0x7, 0xb },   /* (0,1), (1,1) */
 435       { 0x9, 0x5 }, { 0xf, 0x1 },   /* (2,0), (3,0) */
 436       { 0xb, 0xf }, { 0xd, 0x9 } }; /* (2,1), (3,1) */
 437 #if 0
 438    /* NOTE: there are alternative modes for MS2 and MS8, currently not used */
 439    static const uint8_t ms8_alt[8][2] = {
 440       { 0x9, 0x5 }, { 0x7, 0xb },   /* (2,0), (1,1) */
 441       { 0xd, 0x9 }, { 0x5, 0x3 },   /* (3,1), (1,0) */
 442       { 0x3, 0xd }, { 0x1, 0x7 },   /* (0,1), (0,0) */
 443       { 0xb, 0xf }, { 0xf, 0x1 } }; /* (2,1), (3,0) */
 444 #endif
 445
 446    const uint8_t (*ptr)[2];
 447
 448    switch (sample_count) {
 449    case 0:
 450    case 1: ptr = ms1; break;
 451    case 2: ptr = ms2; break;
 452    case 4: ptr = ms4; break;
 453    case 8: ptr = ms8; break;
 454    default:
 455       assert(0);
 456       return; /* bad sample count -> undefined locations */
 457    }
 458    xy[0] = ptr[sample_index][0] * 0.0625f;
 459    xy[1] = ptr[sample_index][1] * 0.0625f;
 460 }