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 #include "nv50/nv50_query_hw_metric.h"
  31 #include "nv50/nv50_query_hw_sm.h"
  32
  33 static struct pipe_query *
  34 nv50_create_query(struct pipe_context *pipe, unsigned type, unsigned index)
  35 {
  36    struct nv50_context *nv50 = nv50_context(pipe);
  37    struct nv50_query *q;
  38
  39    q = nv50_hw_create_query(nv50, type, index);
  40    return (struct pipe_query *)q;
  41 }
  42
  43 static void
  44 nv50_destroy_query(struct pipe_context *pipe, struct pipe_query *pq)
  45 {
  46    struct nv50_query *q = nv50_query(pq);
  47    q->funcs->destroy_query(nv50_context(pipe), q);
  48 }
  49
  50 static boolean
  51 nv50_begin_query(struct pipe_context *pipe, struct pipe_query *pq)
  52 {
  53    struct nv50_query *q = nv50_query(pq);
  54    return q->funcs->begin_query(nv50_context(pipe), q);
  55 }
  56
  57 static bool
  58 nv50_end_query(struct pipe_context *pipe, struct pipe_query *pq)
  59 {
  60    struct nv50_query *q = nv50_query(pq);
  61    q->funcs->end_query(nv50_context(pipe), q);
  62    return true;
  63 }
  64
  65 static boolean
  66 nv50_get_query_result(struct pipe_context *pipe, struct pipe_query *pq,
  67                       boolean wait, union pipe_query_result *result)
  68 {
  69    struct nv50_query *q = nv50_query(pq);
  70    return q->funcs->get_query_result(nv50_context(pipe), q, wait, result);
  71 }
  72
  73 static void
  74 nv50_render_condition(struct pipe_context *pipe,
  75                       struct pipe_query *pq,
  76                       boolean condition, uint mode)
  77 {
  78    struct nv50_context *nv50 = nv50_context(pipe);
  79    struct nouveau_pushbuf *push = nv50->base.pushbuf;
  80    struct nv50_query *q = nv50_query(pq);
  81    struct nv50_hw_query *hq = nv50_hw_query(q);
  82    uint32_t cond;
  83    bool wait =
  84       mode != PIPE_RENDER_COND_NO_WAIT &&
  85       mode != PIPE_RENDER_COND_BY_REGION_NO_WAIT;
  86
  87    if (!pq) {
  88       cond = NV50_3D_COND_MODE_ALWAYS;
  89    }
  90    else {
  91       /* NOTE: comparison of 2 queries only works if both have completed */
  92       switch (q->type) {
  93       case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
  94          cond = condition ? NV50_3D_COND_MODE_EQUAL :
  95                             NV50_3D_COND_MODE_NOT_EQUAL;
  96          wait = true;
  97          break;
  98       case PIPE_QUERY_OCCLUSION_COUNTER:
  99       case PIPE_QUERY_OCCLUSION_PREDICATE:
 100          if (likely(!condition)) {
 101             if (unlikely(hq->nesting))
 102                cond = wait ? NV50_3D_COND_MODE_NOT_EQUAL :
 103                              NV50_3D_COND_MODE_ALWAYS;
 104             else
 105                cond = NV50_3D_COND_MODE_RES_NON_ZERO;
 106          } else {
 107             cond = wait ? NV50_3D_COND_MODE_EQUAL : NV50_3D_COND_MODE_ALWAYS;
 108          }
 109          break;
 110       default:
 111          assert(!"render condition query not a predicate");
 112          cond = NV50_3D_COND_MODE_ALWAYS;
 113          break;
 114       }
 115    }
 116
 117    nv50->cond_query = pq;
 118    nv50->cond_cond = condition;
 119    nv50->cond_condmode = cond;
 120    nv50->cond_mode = mode;
 121
 122    if (!pq) {
 123       PUSH_SPACE(push, 2);
 124       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
 125       PUSH_DATA (push, cond);
 126       return;
 127    }
 128
 129    PUSH_SPACE(push, 9);
 130
 131    if (wait) {
 132       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
 133       PUSH_DATA (push, 0);
 134    }
 135
 136    PUSH_REFN (push, hq->bo, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
 137    BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
 138    PUSH_DATAh(push, hq->bo->offset + hq->offset);
 139    PUSH_DATA (push, hq->bo->offset + hq->offset);
 140    PUSH_DATA (push, cond);
 141
 142    BEGIN_NV04(push, NV50_2D(COND_ADDRESS_HIGH), 2);
 143    PUSH_DATAh(push, hq->bo->offset + hq->offset);
 144    PUSH_DATA (push, hq->bo->offset + hq->offset);
 145 }
 146
 147 static void
 148 nv50_set_active_query_state(struct pipe_context *pipe, boolean enable)
 149 {
 150 }
 151
 152 void
 153 nv50_init_query_functions(struct nv50_context *nv50)
 154 {
 155    struct pipe_context *pipe = &nv50->base.pipe;
 156
 157    pipe->create_query = nv50_create_query;
 158    pipe->destroy_query = nv50_destroy_query;
 159    pipe->begin_query = nv50_begin_query;
 160    pipe->end_query = nv50_end_query;
 161    pipe->get_query_result = nv50_get_query_result;
 162    pipe->set_active_query_state = nv50_set_active_query_state;
 163    pipe->render_condition = nv50_render_condition;
 164    nv50->cond_condmode = NV50_3D_COND_MODE_ALWAYS;
 165 }
 166
 167 int
 168 nv50_screen_get_driver_query_info(struct pipe_screen *pscreen,
 169                                   unsigned id,
 170                                   struct pipe_driver_query_info *info)
 171 {
 172    struct nv50_screen *screen = nv50_screen(pscreen);
 173    int num_hw_queries = 0;
 174
 175    num_hw_queries = nv50_hw_get_driver_query_info(screen, 0, NULL);
 176
 177    if (!info)
 178       return num_hw_queries;
 179
 180    /* Init default values. */
 181    info->name = "this_is_not_the_query_you_are_looking_for";
 182    info->query_type = 0xdeadd01d;
 183    info->max_value.u64 = 0;
 184    info->type = PIPE_DRIVER_QUERY_TYPE_UINT64;
 185    info->group_id = -1;
 186    info->flags = 0;
 187
 188    return nv50_hw_get_driver_query_info(screen, id, info);
 189 }
 190
 191 int
 192 nv50_screen_get_driver_query_group_info(struct pipe_screen *pscreen,
 193                                         unsigned id,
 194                                         struct pipe_driver_query_group_info *info)
 195 {
 196    struct nv50_screen *screen = nv50_screen(pscreen);
 197    int count = 0;
 198
 199    if (screen->compute)
 200       if (screen->base.class_3d >= NV84_3D_CLASS)
 201          count += 2;
 202
 203    if (!info)
 204       return count;
 205
 206    if (id == NV50_HW_SM_QUERY_GROUP) {
 207       if (screen->compute) {
 208          if (screen->base.class_3d >= NV84_3D_CLASS) {
 209             info->name = "MP counters";
 210
 211             /* Expose the maximum number of hardware counters available,
 212              * although some queries use more than one counter. Expect failures
 213              * in that case but as performance counters are for developers,
 214              * this should not have a real impact. */
 215             info->max_active_queries = 4;
 216             info->num_queries = NV50_HW_SM_QUERY_COUNT;
 217             return 1;
 218          }
 219       }
 220    } else
 221    if (id == NV50_HW_METRIC_QUERY_GROUP) {
 222       if (screen->compute) {
 223          if (screen->base.class_3d >= NV84_3D_CLASS) {
 224             info->name = "Performance metrics";
 225             info->max_active_queries = 2; /* A metric uses at least 2 queries */
 226             info->num_queries = NV50_HW_METRIC_QUERY_COUNT;
 227             return 1;
 228          }
 229       }
 230    }
 231
 232    /* user asked for info about non-existing query group */
 233    info->name = "this_is_not_the_query_group_you_are_looking_for";
 234    info->max_active_queries = 0;
 235    info->num_queries = 0;
 236    return 0;
 237 }