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      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, enum pipe_render_cond_flag 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       case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
    101          if (likely(!condition)) {
    102             if (unlikely(hq->nesting))
    103                cond = wait ? NV50_3D_COND_MODE_NOT_EQUAL :
    104                              NV50_3D_COND_MODE_ALWAYS;
    105             else
    106                cond = NV50_3D_COND_MODE_RES_NON_ZERO;
    107          } else {
    108             cond = wait ? NV50_3D_COND_MODE_EQUAL : NV50_3D_COND_MODE_ALWAYS;
    109          }
    110          break;
    111       default:
    112          assert(!"render condition query not a predicate");
    113          cond = NV50_3D_COND_MODE_ALWAYS;
    114          break;
    115       }
    116    }
    117 
    118    nv50->cond_query = pq;
    119    nv50->cond_cond = condition;
    120    nv50->cond_condmode = cond;
    121    nv50->cond_mode = mode;
    122 
    123    if (!pq) {
    124       PUSH_SPACE(push, 2);
    125       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    126       PUSH_DATA (push, cond);
    127       return;
    128    }
    129 
    130    PUSH_SPACE(push, 9);
    131 
    132    if (wait) {
    133       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
    134       PUSH_DATA (push, 0);
    135    }
    136 
    137    PUSH_REFN (push, hq->bo, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
    138    BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
    139    PUSH_DATAh(push, hq->bo->offset + hq->offset);
    140    PUSH_DATA (push, hq->bo->offset + hq->offset);
    141    PUSH_DATA (push, cond);
    142 
    143    BEGIN_NV04(push, NV50_2D(COND_ADDRESS_HIGH), 2);
    144    PUSH_DATAh(push, hq->bo->offset + hq->offset);
    145    PUSH_DATA (push, hq->bo->offset + hq->offset);
    146 }
    147 
    148 static void
    149 nv50_set_active_query_state(struct pipe_context *pipe, boolean enable)
    150 {
    151 }
    152 
    153 void
    154 nv50_init_query_functions(struct nv50_context *nv50)
    155 {
    156    struct pipe_context *pipe = &nv50->base.pipe;
    157 
    158    pipe->create_query = nv50_create_query;
    159    pipe->destroy_query = nv50_destroy_query;
    160    pipe->begin_query = nv50_begin_query;
    161    pipe->end_query = nv50_end_query;
    162    pipe->get_query_result = nv50_get_query_result;
    163    pipe->set_active_query_state = nv50_set_active_query_state;
    164    pipe->render_condition = nv50_render_condition;
    165    nv50->cond_condmode = NV50_3D_COND_MODE_ALWAYS;
    166 }
    167 
    168 int
    169 nv50_screen_get_driver_query_info(struct pipe_screen *pscreen,
    170                                   unsigned id,
    171                                   struct pipe_driver_query_info *info)
    172 {
    173    struct nv50_screen *screen = nv50_screen(pscreen);
    174    int num_hw_queries = 0;
    175 
    176    num_hw_queries = nv50_hw_get_driver_query_info(screen, 0, NULL);
    177 
    178    if (!info)
    179       return num_hw_queries;
    180 
    181    /* Init default values. */
    182    info->name = "this_is_not_the_query_you_are_looking_for";
    183    info->query_type = 0xdeadd01d;
    184    info->max_value.u64 = 0;
    185    info->type = PIPE_DRIVER_QUERY_TYPE_UINT64;
    186    info->group_id = -1;
    187    info->flags = 0;
    188 
    189    return nv50_hw_get_driver_query_info(screen, id, info);
    190 }
    191 
    192 int
    193 nv50_screen_get_driver_query_group_info(struct pipe_screen *pscreen,
    194                                         unsigned id,
    195                                         struct pipe_driver_query_group_info *info)
    196 {
    197    struct nv50_screen *screen = nv50_screen(pscreen);
    198    int count = 0;
    199 
    200    if (screen->compute)
    201       if (screen->base.class_3d >= NV84_3D_CLASS)
    202          count += 2;
    203 
    204    if (!info)
    205       return count;
    206 
    207    if (id == NV50_HW_SM_QUERY_GROUP) {
    208       if (screen->compute) {
    209          if (screen->base.class_3d >= NV84_3D_CLASS) {
    210             info->name = "MP counters";
    211 
    212             /* Expose the maximum number of hardware counters available,
    213              * although some queries use more than one counter. Expect failures
    214              * in that case but as performance counters are for developers,
    215              * this should not have a real impact. */
    216             info->max_active_queries = 4;
    217             info->num_queries = NV50_HW_SM_QUERY_COUNT;
    218             return 1;
    219          }
    220       }
    221    } else
    222    if (id == NV50_HW_METRIC_QUERY_GROUP) {
    223       if (screen->compute) {
    224          if (screen->base.class_3d >= NV84_3D_CLASS) {
    225             info->name = "Performance metrics";
    226             info->max_active_queries = 2; /* A metric uses at least 2 queries */
    227             info->num_queries = NV50_HW_METRIC_QUERY_COUNT;
    228             return 1;
    229          }
    230       }
    231    }
    232 
    233    /* user asked for info about non-existing query group */
    234    info->name = "this_is_not_the_query_group_you_are_looking_for";
    235    info->max_active_queries = 0;
    236    info->num_queries = 0;
    237    return 0;
    238 }
    239