src/gallium/drivers/nouveau/nv30/nv30_query.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   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  * Authors: Ben Skeggs
  23  *
  24  */
  25
  26 #include "nv_object.xml.h"
  27 #include "nv30/nv30-40_3d.xml.h"
  28 #include "nv30/nv30_screen.h"
  29 #include "nv30/nv30_context.h"
  30
  31 #define LIST_FIRST_ENTRY(__type, __item, __field) \
  32    LIST_ENTRY(__type, (__item)->next, __field)
  33
  34 struct nv30_query_object {
  35    struct list_head list;
  36    struct nouveau_heap *hw;
  37 };
  38
  39 static volatile void *
  40 nv30_ntfy(struct nv30_screen *screen, struct nv30_query_object *qo)
  41 {
  42    struct nv04_notify *query = screen->query->data;
  43    struct nouveau_bo *notify = screen->notify;
  44    volatile void *ntfy = NULL;
  45
  46    if (qo && qo->hw)
  47       ntfy = (char *)notify->map + query->offset + qo->hw->start;
  48
  49    return ntfy;
  50 }
  51
  52 static void
  53 nv30_query_object_del(struct nv30_screen *screen, struct nv30_query_object **po)
  54 {
  55    struct nv30_query_object *qo = *po; *po = NULL;
  56    if (qo) {
  57       volatile uint32_t *ntfy = nv30_ntfy(screen, qo);
  58       while (ntfy[3] & 0xff000000) {
  59       }
  60       nouveau_heap_free(&qo->hw);
  61       LIST_DEL(&qo->list);
  62       FREE(qo);
  63    }
  64 }
  65
  66 static struct nv30_query_object *
  67 nv30_query_object_new(struct nv30_screen *screen)
  68 {
  69    struct nv30_query_object *oq, *qo = CALLOC_STRUCT(nv30_query_object);
  70    volatile uint32_t *ntfy;
  71
  72    if (!qo)
  73       return NULL;
  74
  75    /* allocate a new hw query object, if no hw objects left we need to
  76     * spin waiting for one to become free
  77     */
  78    while (nouveau_heap_alloc(screen->query_heap, 32, NULL, &qo->hw)) {
  79       oq = LIST_FIRST_ENTRY(struct nv30_query_object, &screen->queries, list);
  80       nv30_query_object_del(screen, &oq);
  81    }
  82
  83    LIST_ADDTAIL(&qo->list, &screen->queries);
  84
  85    ntfy = nv30_ntfy(screen, qo);
  86    ntfy[0] = 0x00000000;
  87    ntfy[1] = 0x00000000;
  88    ntfy[2] = 0x00000000;
  89    ntfy[3] = 0x01000000;
  90    return qo;
  91 }
  92
  93 struct nv30_query {
  94    struct nv30_query_object *qo[2];
  95    unsigned type;
  96    uint32_t report;
  97    uint32_t enable;
  98    uint64_t result;
  99 };
 100
 101 static inline struct nv30_query *
 102 nv30_query(struct pipe_query *pipe)
 103 {
 104    return (struct nv30_query *)pipe;
 105 }
 106
 107 static struct pipe_query *
 108 nv30_query_create(struct pipe_context *pipe, unsigned type, unsigned index)
 109 {
 110    struct nv30_query *q = CALLOC_STRUCT(nv30_query);
 111    if (!q)
 112       return NULL;
 113
 114    q->type = type;
 115
 116    switch (q->type) {
 117    case PIPE_QUERY_TIMESTAMP:
 118    case PIPE_QUERY_TIME_ELAPSED:
 119       q->enable = 0x0000;
 120       q->report = 1;
 121       break;
 122    case PIPE_QUERY_OCCLUSION_COUNTER:
 123       q->enable = NV30_3D_QUERY_ENABLE;
 124       q->report = 1;
 125       break;
 126    case NV30_QUERY_ZCULL_0:
 127    case NV30_QUERY_ZCULL_1:
 128    case NV30_QUERY_ZCULL_2:
 129    case NV30_QUERY_ZCULL_3:
 130       q->enable = 0x1804;
 131       q->report = 2 + (q->type - NV30_QUERY_ZCULL_0);
 132       break;
 133    default:
 134       FREE(q);
 135       return NULL;
 136    }
 137
 138    return (struct pipe_query *)q;
 139 }
 140
 141 static void
 142 nv30_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
 143 {
 144    FREE(pq);
 145 }
 146
 147 static boolean
 148 nv30_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
 149 {
 150    struct nv30_context *nv30 = nv30_context(pipe);
 151    struct nv30_query *q = nv30_query(pq);
 152    struct nouveau_pushbuf *push = nv30->base.pushbuf;
 153
 154    switch (q->type) {
 155    case PIPE_QUERY_TIME_ELAPSED:
 156       q->qo[0] = nv30_query_object_new(nv30->screen);
 157       if (q->qo[0]) {
 158          BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
 159          PUSH_DATA (push, (q->report << 24) | q->qo[0]->hw->start);
 160       }
 161       break;
 162    case PIPE_QUERY_TIMESTAMP:
 163       return true;
 164    default:
 165       BEGIN_NV04(push, NV30_3D(QUERY_RESET), 1);
 166       PUSH_DATA (push, q->report);
 167       break;
 168    }
 169
 170    if (q->enable) {
 171       BEGIN_NV04(push, SUBC_3D(q->enable), 1);
 172       PUSH_DATA (push, 1);
 173    }
 174    return true;
 175 }
 176
 177 static void
 178 nv30_query_end(struct pipe_context *pipe, struct pipe_query *pq)
 179 {
 180    struct nv30_context *nv30 = nv30_context(pipe);
 181    struct nv30_screen *screen = nv30->screen;
 182    struct nv30_query *q = nv30_query(pq);
 183    struct nouveau_pushbuf *push = nv30->base.pushbuf;
 184
 185    q->qo[1] = nv30_query_object_new(screen);
 186    if (q->qo[1]) {
 187       BEGIN_NV04(push, NV30_3D(QUERY_GET), 1);
 188       PUSH_DATA (push, (q->report << 24) | q->qo[1]->hw->start);
 189    }
 190
 191    if (q->enable) {
 192       BEGIN_NV04(push, SUBC_3D(q->enable), 1);
 193       PUSH_DATA (push, 0);
 194    }
 195    PUSH_KICK (push);
 196 }
 197
 198 static boolean
 199 nv30_query_result(struct pipe_context *pipe, struct pipe_query *pq,
 200                   boolean wait, union pipe_query_result *result)
 201 {
 202    struct nv30_screen *screen = nv30_screen(pipe->screen);
 203    struct nv30_query *q = nv30_query(pq);
 204    volatile uint32_t *ntfy0 = nv30_ntfy(screen, q->qo[0]);
 205    volatile uint32_t *ntfy1 = nv30_ntfy(screen, q->qo[1]);
 206    uint64_t *res64 = &result->u64;
 207
 208    if (ntfy1) {
 209       while (ntfy1[3] & 0xff000000) {
 210          if (!wait)
 211             return false;
 212       }
 213
 214       switch (q->type) {
 215       case PIPE_QUERY_TIMESTAMP:
 216          q->result = *(uint64_t *)&ntfy1[0];
 217          break;
 218       case PIPE_QUERY_TIME_ELAPSED:
 219          q->result = *(uint64_t *)&ntfy1[0] - *(uint64_t *)&ntfy0[0];
 220          break;
 221       default:
 222          q->result = ntfy1[2];
 223          break;
 224       }
 225
 226       nv30_query_object_del(screen, &q->qo[0]);
 227       nv30_query_object_del(screen, &q->qo[1]);
 228    }
 229
 230    *res64 = q->result;
 231    return true;
 232 }
 233
 234 static void
 235 nv40_query_render_condition(struct pipe_context *pipe,
 236                             struct pipe_query *pq,
 237                             boolean condition, uint mode)
 238 {
 239    struct nv30_context *nv30 = nv30_context(pipe);
 240    struct nv30_query *q = nv30_query(pq);
 241    struct nouveau_pushbuf *push = nv30->base.pushbuf;
 242
 243    nv30->render_cond_query = pq;
 244    nv30->render_cond_mode = mode;
 245    nv30->render_cond_cond = condition;
 246
 247    if (!pq) {
 248       BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
 249       PUSH_DATA (push, 0x01000000);
 250       return;
 251    }
 252
 253    if (mode == PIPE_RENDER_COND_WAIT ||
 254        mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
 255       BEGIN_NV04(push, SUBC_3D(0x0110), 1);
 256       PUSH_DATA (push, 0);
 257    }
 258
 259    BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
 260    PUSH_DATA (push, 0x02000000 | q->qo[1]->hw->start);
 261 }
 262
 263 void
 264 nv30_query_init(struct pipe_context *pipe)
 265 {
 266    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
 267
 268    pipe->create_query = nv30_query_create;
 269    pipe->destroy_query = nv30_query_destroy;
 270    pipe->begin_query = nv30_query_begin;
 271    pipe->end_query = nv30_query_end;
 272    pipe->get_query_result = nv30_query_result;
 273    if (eng3d->oclass >= NV40_3D_CLASS)
 274       pipe->render_condition = nv40_query_render_condition;
 275 }