src/gallium/drivers/nv50/nv50_query.c

   1 /*
   2  * Copyright 2011 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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  *
  22  * Authors: Christoph Bumiller
  23  */
  24
  25 #define NV50_PUSH_EXPLICIT_SPACE_CHECKING
  26
  27 #include "nv50_context.h"
  28 #include "nouveau/nv_object.xml.h"
  29
  30 /* XXX: Nested queries, and simultaneous queries on multiple gallium contexts
  31  * (since we use only a single GPU channel per screen) will not work properly.
  32  *
  33  * The first is not that big of an issue because OpenGL does not allow nested
  34  * queries anyway.
  35  */
  36
  37 struct nv50_query {
  38    uint32_t *data;
  39    uint16_t type;
  40    uint16_t index;
  41    uint32_t sequence;
  42    struct nouveau_bo *bo;
  43    uint32_t base;
  44    uint32_t offset; /* base + i * 16 */
  45    boolean ready;
  46    boolean flushed;
  47    boolean is64bit;
  48    struct nouveau_mm_allocation *mm;
  49 };
  50
  51 #define NV50_QUERY_ALLOC_SPACE 128
  52
  53 static INLINE struct nv50_query *
  54 nv50_query(struct pipe_query *pipe)
  55 {
  56    return (struct nv50_query *)pipe;
  57 }
  58
  59 static boolean
  60 nv50_query_allocate(struct nv50_context *nv50, struct nv50_query *q, int size)
  61 {
  62    struct nv50_screen *screen = nv50->screen;
  63    int ret;
  64
  65    if (q->bo) {
  66       nouveau_bo_ref(NULL, &q->bo);
  67       if (q->mm) {
  68          if (q->ready)
  69             nouveau_mm_free(q->mm);
  70          else
  71             nouveau_fence_work(screen->base.fence.current, nouveau_mm_free_work,
  72                                q->mm);
  73       }
  74    }
  75    if (size) {
  76       q->mm = nouveau_mm_allocate(screen->base.mm_GART, size, &q->bo, &q->base);
  77       if (!q->bo)
  78          return FALSE;
  79       q->offset = q->base;
  80
  81       ret = nouveau_bo_map(q->bo, 0, screen->base.client);
  82       if (ret) {
  83          nv50_query_allocate(nv50, q, 0);
  84          return FALSE;
  85       }
  86       q->data = (uint32_t *)((uint8_t *)q->bo->map + q->base);
  87    }
  88    return TRUE;
  89 }
  90
  91 static void
  92 nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
  93 {
  94    nv50_query_allocate(nv50_context(pipe), nv50_query(pq), 0);
  95    FREE(nv50_query(pq));
  96 }
  97
  98 static struct pipe_query *
  99 nv50_query_create(struct pipe_context *pipe, unsigned type)
 100 {
 101    struct nv50_context *nv50 = nv50_context(pipe);
 102    struct nv50_query *q;
 103
 104    q = CALLOC_STRUCT(nv50_query);
 105    if (!q)
 106       return NULL;
 107
 108    if (!nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE)) {
 109       FREE(q);
 110       return NULL;
 111    }
 112
 113    q->is64bit = (type == PIPE_QUERY_PRIMITIVES_GENERATED ||
 114                  type == PIPE_QUERY_PRIMITIVES_EMITTED ||
 115                  type == PIPE_QUERY_SO_STATISTICS);
 116    q->type = type;
 117
 118    if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
 119       q->offset -= 16;
 120       q->data -= 16 / sizeof(*q->data); /* we advance before query_begin ! */
 121    }
 122
 123    return (struct pipe_query *)q;
 124 }
 125
 126 static void
 127 nv50_query_get(struct nouveau_pushbuf *push, struct nv50_query *q,
 128                unsigned offset, uint32_t get)
 129 {
 130    offset += q->offset;
 131
 132    PUSH_SPACE(push, 5);
 133    PUSH_REFN (push, q->bo, NOUVEAU_BO_GART | NOUVEAU_BO_WR);
 134    BEGIN_NV04(push, NV50_3D(QUERY_ADDRESS_HIGH), 4);
 135    PUSH_DATAh(push, q->bo->offset + offset);
 136    PUSH_DATA (push, q->bo->offset + offset);
 137    PUSH_DATA (push, q->sequence);
 138    PUSH_DATA (push, get);
 139 }
 140
 141 static void
 142 nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
 143 {
 144    struct nv50_context *nv50 = nv50_context(pipe);
 145    struct nouveau_pushbuf *push = nv50->base.pushbuf;
 146    struct nv50_query *q = nv50_query(pq);
 147
 148    /* For occlusion queries we have to change the storage, because a previous
 149     * query might set the initial render conition to FALSE even *after* we re-
 150     * initialized it to TRUE.
 151     */
 152    if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
 153       q->offset += 16;
 154       q->data += 16 / sizeof(*q->data);
 155       if (q->offset - q->base == NV50_QUERY_ALLOC_SPACE)
 156          nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE);
 157
 158       /* XXX: can we do this with the GPU, and sync with respect to a previous
 159        *  query ?
 160        */
 161       q->data[1] = 1; /* initial render condition = TRUE */
 162    }
 163    if (!q->is64bit)
 164       q->data[0] = q->sequence++; /* the previously used one */
 165
 166    switch (q->type) {
 167    case PIPE_QUERY_OCCLUSION_COUNTER:
 168       PUSH_SPACE(push, 4);
 169       BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
 170       PUSH_DATA (push, NV50_3D_COUNTER_RESET_SAMPLECNT);
 171       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
 172       PUSH_DATA (push, 1);
 173       break;
 174    case PIPE_QUERY_PRIMITIVES_GENERATED:
 175       nv50_query_get(push, q, 0x10, 0x06805002);
 176       break;
 177    case PIPE_QUERY_PRIMITIVES_EMITTED:
 178       nv50_query_get(push, q, 0x10, 0x05805002);
 179       break;
 180    case PIPE_QUERY_SO_STATISTICS:
 181       nv50_query_get(push, q, 0x20, 0x05805002);
 182       nv50_query_get(push, q, 0x30, 0x06805002);
 183       break;
 184    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 185    case PIPE_QUERY_TIME_ELAPSED:
 186       nv50_query_get(push, q, 0x10, 0x00005002);
 187       break;
 188    default:
 189       break;
 190    }
 191    q->ready = FALSE;
 192 }
 193
 194 static void
 195 nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq)
 196 {
 197    struct nv50_context *nv50 = nv50_context(pipe);
 198    struct nouveau_pushbuf *push = nv50->base.pushbuf;
 199    struct nv50_query *q = nv50_query(pq);
 200
 201    switch (q->type) {
 202    case PIPE_QUERY_OCCLUSION_COUNTER:
 203       nv50_query_get(push, q, 0, 0x0100f002);
 204       PUSH_SPACE(push, 2);
 205       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
 206       PUSH_DATA (push, 0);
 207       break;
 208    case PIPE_QUERY_PRIMITIVES_GENERATED:
 209       nv50_query_get(push, q, 0, 0x06805002);
 210       break;
 211    case PIPE_QUERY_PRIMITIVES_EMITTED:
 212       nv50_query_get(push, q, 0, 0x05805002);
 213       break;
 214    case PIPE_QUERY_SO_STATISTICS:
 215       nv50_query_get(push, q, 0x00, 0x05805002);
 216       nv50_query_get(push, q, 0x10, 0x06805002);
 217       break;
 218    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 219    case PIPE_QUERY_TIME_ELAPSED:
 220       nv50_query_get(push, q, 0, 0x00005002);
 221       break;
 222    case PIPE_QUERY_GPU_FINISHED:
 223       nv50_query_get(push, q, 0, 0x1000f010);
 224       break;
 225    case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
 226       nv50_query_get(push, q, 0, 0x0d005002 | (q->index << 5));
 227       break;
 228    default:
 229       assert(0);
 230       break;
 231    }
 232    q->flushed = FALSE;
 233 }
 234
 235 static INLINE boolean
 236 nv50_query_ready(struct nv50_query *q)
 237 {
 238    return q->ready || (!q->is64bit && (q->data[0] == q->sequence));
 239 }
 240
 241 static boolean
 242 nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
 243                   boolean wait, union pipe_query_result *result)
 244 {
 245    struct nv50_context *nv50 = nv50_context(pipe);
 246    struct nv50_query *q = nv50_query(pq);
 247    uint64_t *res64 = (uint64_t *)result;
 248    uint32_t *res32 = (uint32_t *)result;
 249    boolean *res8 = (boolean *)result;
 250    uint64_t *data64 = (uint64_t *)q->data;
 251
 252    if (!q->ready) /* update ? */
 253       q->ready = nv50_query_ready(q);
 254    if (!q->ready) {
 255       if (!wait) {
 256          /* for broken apps that spin on GL_QUERY_RESULT_AVAILABLE */
 257          if (!q->flushed) {
 258             q->flushed = TRUE;
 259             PUSH_KICK(nv50->base.pushbuf);
 260          }
 261          return FALSE;
 262       }
 263       if (nouveau_bo_wait(q->bo, NOUVEAU_BO_RD, nv50->screen->base.client))
 264          return FALSE;
 265    }
 266    q->ready = TRUE;
 267
 268    switch (q->type) {
 269    case PIPE_QUERY_GPU_FINISHED:
 270       res8[0] = TRUE;
 271       break;
 272    case PIPE_QUERY_OCCLUSION_COUNTER: /* u32 sequence, u32 count, u64 time */
 273       res64[0] = q->data[1];
 274       break;
 275    case PIPE_QUERY_PRIMITIVES_GENERATED: /* u64 count, u64 time */
 276    case PIPE_QUERY_PRIMITIVES_EMITTED: /* u64 count, u64 time */
 277       res64[0] = data64[0] - data64[2];
 278       break;
 279    case PIPE_QUERY_SO_STATISTICS:
 280       res64[0] = data64[0] - data64[4];
 281       res64[1] = data64[2] - data64[6];
 282       break;
 283    case PIPE_QUERY_TIMESTAMP_DISJOINT: /* u32 sequence, u32 0, u64 time */
 284       res64[0] = 1000000000;
 285       res8[8] = (data64[0] == data64[2]) ? FALSE : TRUE;
 286       break;
 287    case PIPE_QUERY_TIME_ELAPSED:
 288       res64[0] = data64[1] - data64[3];
 289       break;
 290    case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
 291       res32[0] = q->data[1];
 292       break;
 293    default:
 294       return FALSE;
 295    }
 296
 297    return TRUE;
 298 }
 299
 300 void
 301 nv84_query_fifo_wait(struct nouveau_pushbuf *push, struct pipe_query *pq)
 302 {
 303    struct nv50_query *q = nv50_query(pq);
 304    unsigned offset = q->offset;
 305
 306    PUSH_SPACE(push, 5);
 307    PUSH_REFN (push, q->bo, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
 308    BEGIN_NV04(push, SUBC_3D(NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH), 4);
 309    PUSH_DATAh(push, q->bo->offset + offset);
 310    PUSH_DATA (push, q->bo->offset + offset);
 311    PUSH_DATA (push, q->sequence);
 312    PUSH_DATA (push, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL);
 313 }
 314
 315 static void
 316 nv50_render_condition(struct pipe_context *pipe,
 317                       struct pipe_query *pq, uint mode)
 318 {
 319    struct nv50_context *nv50 = nv50_context(pipe);
 320    struct nouveau_pushbuf *push = nv50->base.pushbuf;
 321    struct nv50_query *q;
 322
 323    PUSH_SPACE(push, 6);
 324
 325    if (!pq) {
 326       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
 327       PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
 328       return;
 329    }
 330    q = nv50_query(pq);
 331
 332    if (mode == PIPE_RENDER_COND_WAIT ||
 333        mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
 334       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
 335       PUSH_DATA (push, 0);
 336    }
 337
 338    BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
 339    PUSH_DATAh(push, q->bo->offset + q->offset);
 340    PUSH_DATA (push, q->bo->offset + q->offset);
 341    PUSH_DATA (push, NV50_3D_COND_MODE_RES_NON_ZERO);
 342 }
 343
 344 void
 345 nv50_query_pushbuf_submit(struct nouveau_pushbuf *push,
 346                           struct pipe_query *pq, unsigned result_offset)
 347 {
 348    struct nv50_query *q = nv50_query(pq);
 349
 350    /* XXX: does this exist ? */
 351 #define NV50_IB_ENTRY_1_NO_PREFETCH (0 << (31 - 8))
 352
 353    nouveau_pushbuf_space(push, 0, 0, 1);
 354    nouveau_pushbuf_data(push, q->bo, q->offset + result_offset, 4 |
 355                         NV50_IB_ENTRY_1_NO_PREFETCH);
 356 }
 357
 358 void
 359 nva0_so_target_save_offset(struct pipe_context *pipe,
 360                            struct pipe_stream_output_target *ptarg,
 361                            unsigned index, boolean serialize)
 362 {
 363    struct nv50_so_target *targ = nv50_so_target(ptarg);
 364
 365    if (serialize) {
 366       struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
 367       PUSH_SPACE(push, 2);
 368       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
 369       PUSH_DATA (push, 0);
 370    }
 371
 372    nv50_query(targ->pq)->index = index;
 373    nv50_query_end(pipe, targ->pq);
 374 }
 375
 376 void
 377 nv50_init_query_functions(struct nv50_context *nv50)
 378 {
 379    struct pipe_context *pipe = &nv50->base.pipe;
 380
 381    pipe->create_query = nv50_query_create;
 382    pipe->destroy_query = nv50_query_destroy;
 383    pipe->begin_query = nv50_query_begin;
 384    pipe->end_query = nv50_query_end;
 385    pipe->get_query_result = nv50_query_result;
 386    pipe->render_condition = nv50_render_condition;
 387 }