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      1 /*
      2  * Copyright  2019 Intel Corporation
      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
     12  * in all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     15  * OR 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 OTHER
     18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     20  * DEALINGS IN THE SOFTWARE.
     21  */
     22 
     23 #include "iris_monitor.h"
     24 
     25 #include <xf86drm.h>
     26 
     27 #include "iris_screen.h"
     28 #include "iris_context.h"
     29 #include "iris_perf.h"
     30 
     31 struct iris_monitor_object {
     32    int num_active_counters;
     33    int *active_counters;
     34 
     35    size_t result_size;
     36    unsigned char *result_buffer;
     37 
     38    struct intel_perf_query_object *query;
     39 };
     40 
     41 int
     42 iris_get_monitor_info(struct pipe_screen *pscreen, unsigned index,
     43                       struct pipe_driver_query_info *info)
     44 {
     45    const struct iris_screen *screen = (struct iris_screen *)pscreen;
     46    const struct intel_perf_config *perf_cfg = screen->perf_cfg;
     47    assert(perf_cfg);
     48    if (!perf_cfg)
     49       return 0;
     50 
     51    if (!info) {
     52       /* return the number of metrics */
     53       return perf_cfg->n_counters;
     54    }
     55 
     56    struct intel_perf_query_counter_info *counter_info = &perf_cfg->counter_infos[index];
     57    struct intel_perf_query_counter *counter = counter_info->counter;
     58 
     59    info->group_id = counter_info->location.group_idx;
     60    info->name = counter->name;
     61    info->query_type = PIPE_QUERY_DRIVER_SPECIFIC + index;
     62 
     63    if (counter->type == INTEL_PERF_COUNTER_TYPE_THROUGHPUT)
     64       info->result_type = PIPE_DRIVER_QUERY_RESULT_TYPE_AVERAGE;
     65    else
     66       info->result_type = PIPE_DRIVER_QUERY_RESULT_TYPE_CUMULATIVE;
     67    switch (counter->data_type) {
     68    case INTEL_PERF_COUNTER_DATA_TYPE_BOOL32:
     69    case INTEL_PERF_COUNTER_DATA_TYPE_UINT32:
     70       info->type = PIPE_DRIVER_QUERY_TYPE_UINT;
     71       assert(counter->raw_max <= UINT32_MAX);
     72       info->max_value.u32 = (uint32_t)counter->raw_max;
     73       break;
     74    case INTEL_PERF_COUNTER_DATA_TYPE_UINT64:
     75       info->type = PIPE_DRIVER_QUERY_TYPE_UINT64;
     76       info->max_value.u64 = counter->raw_max;
     77       break;
     78    case INTEL_PERF_COUNTER_DATA_TYPE_FLOAT:
     79    case INTEL_PERF_COUNTER_DATA_TYPE_DOUBLE:
     80       info->type = PIPE_DRIVER_QUERY_TYPE_FLOAT;
     81       info->max_value.f = counter->raw_max;
     82       break;
     83    default:
     84       assert(false);
     85       break;
     86    }
     87 
     88    /* indicates that this is an OA query, not a pipeline statistics query */
     89    info->flags = PIPE_DRIVER_QUERY_FLAG_BATCH;
     90    return 1;
     91 }
     92 
     93 static bool
     94 iris_monitor_init_metrics(struct iris_screen *screen)
     95 {
     96    struct intel_perf_config *perf_cfg = intel_perf_new(screen);
     97    if (unlikely(!perf_cfg))
     98       return false;
     99 
    100    screen->perf_cfg = perf_cfg;
    101 
    102    iris_perf_init_vtbl(perf_cfg);
    103 
    104    intel_perf_init_metrics(perf_cfg, &screen->devinfo, screen->fd,
    105                            true /* pipeline stats*/,
    106                            true /* register snapshots */);
    107 
    108    return perf_cfg->n_counters > 0;
    109 }
    110 
    111 int
    112 iris_get_monitor_group_info(struct pipe_screen *pscreen,
    113                             unsigned group_index,
    114                             struct pipe_driver_query_group_info *info)
    115 {
    116    struct iris_screen *screen = (struct iris_screen *)pscreen;
    117    if (!screen->perf_cfg) {
    118       if (!iris_monitor_init_metrics(screen))
    119          return 0;
    120    }
    121 
    122    const struct intel_perf_config *perf_cfg = screen->perf_cfg;
    123 
    124    if (!info) {
    125       /* return the count that can be queried */
    126       return perf_cfg->n_queries;
    127    }
    128 
    129    if (group_index >= perf_cfg->n_queries) {
    130       /* out of range */
    131       return 0;
    132    }
    133 
    134    struct intel_perf_query_info *query = &perf_cfg->queries[group_index];
    135 
    136    info->name = query->name;
    137    info->max_active_queries = query->n_counters;
    138    info->num_queries = query->n_counters;
    139 
    140    return 1;
    141 }
    142 
    143 static void
    144 iris_init_monitor_ctx(struct iris_context *ice)
    145 {
    146    struct iris_screen *screen = (struct iris_screen *) ice->ctx.screen;
    147 
    148    ice->perf_ctx = intel_perf_new_context(ice);
    149    if (unlikely(!ice->perf_ctx))
    150       return;
    151 
    152    struct intel_perf_context *perf_ctx = ice->perf_ctx;
    153    struct intel_perf_config *perf_cfg = screen->perf_cfg;
    154    intel_perf_init_context(perf_ctx,
    155                          perf_cfg,
    156                          ice,
    157                          ice,
    158                          screen->bufmgr,
    159                          &screen->devinfo,
    160                          ice->batches[IRIS_BATCH_RENDER].hw_ctx_id,
    161                          screen->fd);
    162 }
    163 
    164 /* entry point for GenPerfMonitorsAMD */
    165 struct iris_monitor_object *
    166 iris_create_monitor_object(struct iris_context *ice,
    167                            unsigned num_queries,
    168                            unsigned *query_types)
    169 {
    170    struct iris_screen *screen = (struct iris_screen *) ice->ctx.screen;
    171    struct intel_perf_config *perf_cfg = screen->perf_cfg;
    172    struct intel_perf_query_object *query_obj = NULL;
    173 
    174    /* initialize perf context if this has not already been done.  This
    175     * function is the first entry point that carries the gl context.
    176     */
    177    if (ice->perf_ctx == NULL) {
    178       iris_init_monitor_ctx(ice);
    179    }
    180    struct intel_perf_context *perf_ctx = ice->perf_ctx;
    181 
    182    assert(num_queries > 0);
    183    int query_index = query_types[0] - PIPE_QUERY_DRIVER_SPECIFIC;
    184    assert(query_index <= perf_cfg->n_counters);
    185    const int group = perf_cfg->counter_infos[query_index].location.group_idx;
    186 
    187    struct iris_monitor_object *monitor =
    188       calloc(1, sizeof(struct iris_monitor_object));
    189    if (unlikely(!monitor))
    190       goto allocation_failure;
    191 
    192    monitor->num_active_counters = num_queries;
    193    monitor->active_counters = calloc(num_queries, sizeof(int));
    194    if (unlikely(!monitor->active_counters))
    195       goto allocation_failure;
    196 
    197    for (int i = 0; i < num_queries; ++i) {
    198       unsigned current_query = query_types[i];
    199       unsigned current_query_index = current_query - PIPE_QUERY_DRIVER_SPECIFIC;
    200 
    201       /* all queries must be in the same group */
    202       assert(current_query_index <= perf_cfg->n_counters);
    203       assert(perf_cfg->counter_infos[current_query_index].location.group_idx == group);
    204       monitor->active_counters[i] =
    205          perf_cfg->counter_infos[current_query_index].location.counter_idx;
    206    }
    207 
    208    /* create the intel_perf_query */
    209    query_obj = intel_perf_new_query(perf_ctx, group);
    210    if (unlikely(!query_obj))
    211       goto allocation_failure;
    212 
    213    monitor->query = query_obj;
    214    monitor->result_size = perf_cfg->queries[group].data_size;
    215    monitor->result_buffer = calloc(1, monitor->result_size);
    216    if (unlikely(!monitor->result_buffer))
    217       goto allocation_failure;
    218 
    219    return monitor;
    220 
    221 allocation_failure:
    222    if (monitor) {
    223       free(monitor->active_counters);
    224       free(monitor->result_buffer);
    225    }
    226    free(query_obj);
    227    free(monitor);
    228    return NULL;
    229 }
    230 
    231 void
    232 iris_destroy_monitor_object(struct pipe_context *ctx,
    233                             struct iris_monitor_object *monitor)
    234 {
    235    struct iris_context *ice = (struct iris_context *)ctx;
    236 
    237    intel_perf_delete_query(ice->perf_ctx, monitor->query);
    238    free(monitor->result_buffer);
    239    monitor->result_buffer = NULL;
    240    free(monitor->active_counters);
    241    monitor->active_counters = NULL;
    242    free(monitor);
    243 }
    244 
    245 bool
    246 iris_begin_monitor(struct pipe_context *ctx,
    247                    struct iris_monitor_object *monitor)
    248 {
    249    struct iris_context *ice = (void *) ctx;
    250    struct intel_perf_context *perf_ctx = ice->perf_ctx;
    251 
    252    return intel_perf_begin_query(perf_ctx, monitor->query);
    253 }
    254 
    255 bool
    256 iris_end_monitor(struct pipe_context *ctx,
    257                  struct iris_monitor_object *monitor)
    258 {
    259    struct iris_context *ice = (void *) ctx;
    260    struct intel_perf_context *perf_ctx = ice->perf_ctx;
    261 
    262    intel_perf_end_query(perf_ctx, monitor->query);
    263    return true;
    264 }
    265 
    266 bool
    267 iris_get_monitor_result(struct pipe_context *ctx,
    268                         struct iris_monitor_object *monitor,
    269                         bool wait,
    270                         union pipe_numeric_type_union *result)
    271 {
    272    struct iris_context *ice = (void *) ctx;
    273    struct intel_perf_context *perf_ctx = ice->perf_ctx;
    274    struct iris_batch *batch = &ice->batches[IRIS_BATCH_RENDER];
    275 
    276    bool monitor_ready =
    277       intel_perf_is_query_ready(perf_ctx, monitor->query, batch);
    278 
    279    if (!monitor_ready) {
    280       if (!wait)
    281          return false;
    282       intel_perf_wait_query(perf_ctx, monitor->query, batch);
    283    }
    284 
    285    assert(intel_perf_is_query_ready(perf_ctx, monitor->query, batch));
    286 
    287    unsigned bytes_written;
    288    intel_perf_get_query_data(perf_ctx, monitor->query, batch,
    289                            monitor->result_size,
    290                            (unsigned*) monitor->result_buffer,
    291                            &bytes_written);
    292    if (bytes_written != monitor->result_size)
    293       return false;
    294 
    295    /* copy metrics into the batch result */
    296    for (int i = 0; i < monitor->num_active_counters; ++i) {
    297       int current_counter = monitor->active_counters[i];
    298       const struct intel_perf_query_info *info =
    299          intel_perf_query_info(monitor->query);
    300       const struct intel_perf_query_counter *counter =
    301          &info->counters[current_counter];
    302       assert(intel_perf_query_counter_get_size(counter));
    303       switch (counter->data_type) {
    304       case INTEL_PERF_COUNTER_DATA_TYPE_UINT64:
    305          result[i].u64 = *(uint64_t*)(monitor->result_buffer + counter->offset);
    306          break;
    307       case INTEL_PERF_COUNTER_DATA_TYPE_FLOAT:
    308          result[i].f = *(float*)(monitor->result_buffer + counter->offset);
    309          break;
    310       case INTEL_PERF_COUNTER_DATA_TYPE_UINT32:
    311       case INTEL_PERF_COUNTER_DATA_TYPE_BOOL32:
    312          result[i].u64 = *(uint32_t*)(monitor->result_buffer + counter->offset);
    313          break;
    314       case INTEL_PERF_COUNTER_DATA_TYPE_DOUBLE: {
    315          double v = *(double*)(monitor->result_buffer + counter->offset);
    316          result[i].f = v;
    317          break;
    318       }
    319       default:
    320          unreachable("unexpected counter data type");
    321       }
    322    }
    323    return true;
    324 }
    325