src/gallium/drivers/nouveau/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 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: Christoph Bumiller
  23  */
  24
  25 #define NV50_PUSH_EXPLICIT_SPACE_CHECKING
  26
  27 #include "nv50/nv50_context.h"
  28 #include "nv50/nv50_query.h"
  29 #include "nv50/nv50_query_hw.h"
  30
  31 static struct pipe_query *
  32 nv50_create_query(struct pipe_context *pipe, unsigned type, unsigned index)
  33 {
  34    struct nv50_context *nv50 = nv50_context(pipe);
  35    struct nv50_query *q;
  36
  37    q = nv50_hw_create_query(nv50, type, index);
  38    return (struct pipe_query *)q;
  39 }
  40
  41 static void
  42 nv50_destroy_query(struct pipe_context *pipe, struct pipe_query *pq)
  43 {
  44    struct nv50_query *q = nv50_query(pq);
  45    q->funcs->destroy_query(nv50_context(pipe), q);
  46 }
  47
  48 static boolean
  49 nv50_begin_query(struct pipe_context *pipe, struct pipe_query *pq)
  50 {
  51    struct nv50_query *q = nv50_query(pq);
  52    return q->funcs->begin_query(nv50_context(pipe), q);
  53 }
  54
  55 static void
  56 nv50_end_query(struct pipe_context *pipe, struct pipe_query *pq)
  57 {
  58    struct nv50_query *q = nv50_query(pq);
  59    q->funcs->end_query(nv50_context(pipe), q);
  60 }
  61
  62 static boolean
  63 nv50_get_query_result(struct pipe_context *pipe, struct pipe_query *pq,
  64                       boolean wait, union pipe_query_result *result)
  65 {
  66    struct nv50_query *q = nv50_query(pq);
  67    return q->funcs->get_query_result(nv50_context(pipe), q, wait, result);
  68 }
  69
  70 static void
  71 nv50_render_condition(struct pipe_context *pipe,
  72                       struct pipe_query *pq,
  73                       boolean condition, uint mode)
  74 {
  75    struct nv50_context *nv50 = nv50_context(pipe);
  76    struct nouveau_pushbuf *push = nv50->base.pushbuf;
  77    struct nv50_query *q = nv50_query(pq);
  78    struct nv50_hw_query *hq = nv50_hw_query(q);
  79    uint32_t cond;
  80    bool wait =
  81       mode != PIPE_RENDER_COND_NO_WAIT &&
  82       mode != PIPE_RENDER_COND_BY_REGION_NO_WAIT;
  83
  84    if (!pq) {
  85       cond = NV50_3D_COND_MODE_ALWAYS;
  86    }
  87    else {
  88       /* NOTE: comparison of 2 queries only works if both have completed */
  89       switch (q->type) {
  90       case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
  91          cond = condition ? NV50_3D_COND_MODE_EQUAL :
  92                             NV50_3D_COND_MODE_NOT_EQUAL;
  93          wait = true;
  94          break;
  95       case PIPE_QUERY_OCCLUSION_COUNTER:
  96       case PIPE_QUERY_OCCLUSION_PREDICATE:
  97          if (likely(!condition)) {
  98             if (unlikely(hq->nesting))
  99                cond = wait ? NV50_3D_COND_MODE_NOT_EQUAL :
 100                              NV50_3D_COND_MODE_ALWAYS;
 101             else
 102                cond = NV50_3D_COND_MODE_RES_NON_ZERO;
 103          } else {
 104             cond = wait ? NV50_3D_COND_MODE_EQUAL : NV50_3D_COND_MODE_ALWAYS;
 105          }
 106          break;
 107       default:
 108          assert(!"render condition query not a predicate");
 109          cond = NV50_3D_COND_MODE_ALWAYS;
 110          break;
 111       }
 112    }
 113
 114    nv50->cond_query = pq;
 115    nv50->cond_cond = condition;
 116    nv50->cond_condmode = cond;
 117    nv50->cond_mode = mode;
 118
 119    if (!pq) {
 120       PUSH_SPACE(push, 2);
 121       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
 122       PUSH_DATA (push, cond);
 123       return;
 124    }
 125
 126    PUSH_SPACE(push, 9);
 127
 128    if (wait) {
 129       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
 130       PUSH_DATA (push, 0);
 131    }
 132
 133    PUSH_REFN (push, hq->bo, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
 134    BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
 135    PUSH_DATAh(push, hq->bo->offset + hq->offset);
 136    PUSH_DATA (push, hq->bo->offset + hq->offset);
 137    PUSH_DATA (push, cond);
 138
 139    BEGIN_NV04(push, NV50_2D(COND_ADDRESS_HIGH), 2);
 140    PUSH_DATAh(push, hq->bo->offset + hq->offset);
 141    PUSH_DATA (push, hq->bo->offset + hq->offset);
 142 }
 143
 144 void
 145 nv50_init_query_functions(struct nv50_context *nv50)
 146 {
 147    struct pipe_context *pipe = &nv50->base.pipe;
 148
 149    pipe->create_query = nv50_create_query;
 150    pipe->destroy_query = nv50_destroy_query;
 151    pipe->begin_query = nv50_begin_query;
 152    pipe->end_query = nv50_end_query;
 153    pipe->get_query_result = nv50_get_query_result;
 154    pipe->render_condition = nv50_render_condition;
 155 }