Subversion Repositories Kolibri OS

/*

 * Mesa 3-D graphics library

 *

 * Copyright (C) 2012-2013 LunarG, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 *

 * Authors:

 *    Chia-I Wu 

 */

#include "intel_winsys.h"

#include "ilo_3d.h"

#include "ilo_context.h"

#include "ilo_cp.h"

#include "ilo_query.h"

static const struct {

   const char *name;

   void (*begin)(struct ilo_context *ilo, struct ilo_query *q);

   void (*end)(struct ilo_context *ilo, struct ilo_query *q);

   void (*process)(struct ilo_context *ilo, struct ilo_query *q);

} query_info[PIPE_QUERY_TYPES] = {

#define INFO(prefix, desc) {        \

   .name = desc,                    \

   .begin = prefix ## _begin_query, \

   .end = prefix ## _end_query,     \

   .process = prefix ## _process_query, \

}

#define INFOX(prefix, desc) { desc, NULL, NULL, NULL, }

   [PIPE_QUERY_OCCLUSION_COUNTER]      = INFO(ilo_3d, "occlusion counter"),

   [PIPE_QUERY_OCCLUSION_PREDICATE]    = INFOX(ilo_3d, "occlusion pred."),

   [PIPE_QUERY_TIMESTAMP]              = INFO(ilo_3d, "timestamp"),

   [PIPE_QUERY_TIMESTAMP_DISJOINT]     = INFOX(ilo_3d, "timestamp disjoint"),

   [PIPE_QUERY_TIME_ELAPSED]           = INFO(ilo_3d, "time elapsed"),

   [PIPE_QUERY_PRIMITIVES_GENERATED]   = INFO(ilo_3d, "primitives generated"),

   [PIPE_QUERY_PRIMITIVES_EMITTED]     = INFO(ilo_3d, "primitives emitted"),

   [PIPE_QUERY_SO_STATISTICS]          = INFOX(ilo_3d, "so statistics"),

   [PIPE_QUERY_SO_OVERFLOW_PREDICATE]  = INFOX(ilo_3d, "so overflow pred."),

   [PIPE_QUERY_GPU_FINISHED]           = INFOX(ilo_3d, "gpu finished"),

   [PIPE_QUERY_PIPELINE_STATISTICS]    = INFOX(ilo_3d, "pipeline statistics"),

#undef INFO

#undef INFOX

};

static inline struct ilo_query *

ilo_query(struct pipe_query *query)

{

   return (struct ilo_query *) query;

}

static struct pipe_query *

ilo_create_query(struct pipe_context *pipe, unsigned query_type)

{

   struct ilo_query *q;

   switch (query_type) {

   case PIPE_QUERY_OCCLUSION_COUNTER:

   case PIPE_QUERY_TIMESTAMP:

   case PIPE_QUERY_TIME_ELAPSED:

   case PIPE_QUERY_PRIMITIVES_GENERATED:

   case PIPE_QUERY_PRIMITIVES_EMITTED:

      break;

   default:

      return NULL;

   }

   q = CALLOC_STRUCT(ilo_query);

   if (!q)

      return NULL;

   q->type = query_type;

   list_inithead(&q->list);

   return (struct pipe_query *) q;

}

static void

ilo_destroy_query(struct pipe_context *pipe, struct pipe_query *query)

{

   struct ilo_query *q = ilo_query(query);

   if (q->bo)

      intel_bo_unreference(q->bo);

   FREE(q);

}

static void

ilo_begin_query(struct pipe_context *pipe, struct pipe_query *query)

{

   struct ilo_context *ilo = ilo_context(pipe);

   struct ilo_query *q = ilo_query(query);

   q->active = true;

   query_info[q->type].begin(ilo, q);

}

static void

ilo_end_query(struct pipe_context *pipe, struct pipe_query *query)

{

   struct ilo_context *ilo = ilo_context(pipe);

   struct ilo_query *q = ilo_query(query);

   query_info[q->type].end(ilo, q);

   /*

    * some queries such as timestamp query does not require a call to

    * begin_query() so q->active is always false

    */

   q->active = false;

}

/**

 * The type (union pipe_query_result) indicates only the size of the buffer.

 * Callers expect the result to be "serialized".

 */

static void

serialize_query_data(unsigned type, const union pipe_query_result *data,

                     void *buf)

{

   switch (type) {

   case PIPE_QUERY_OCCLUSION_COUNTER:

   case PIPE_QUERY_TIMESTAMP:

   case PIPE_QUERY_TIME_ELAPSED:

   case PIPE_QUERY_PRIMITIVES_GENERATED:

   case PIPE_QUERY_PRIMITIVES_EMITTED:

      {

         uint64_t *r = buf;

         r[0] = data->u64;

      }

      break;

   default:

      memset(buf, 0, sizeof(union pipe_query_result));

      break;

   }

}

static boolean

ilo_get_query_result(struct pipe_context *pipe, struct pipe_query *query,

                     boolean wait, union pipe_query_result *result)

{

   struct ilo_context *ilo = ilo_context(pipe);

   struct ilo_query *q = ilo_query(query);

   if (q->active)

      return false;

   if (q->bo) {

      if (intel_bo_references(ilo->cp->bo, q->bo))

         ilo_cp_flush(ilo->cp);

      if (!wait && intel_bo_is_busy(q->bo))

         return false;

      query_info[q->type].process(ilo, q);

   }

   if (result)

      serialize_query_data(q->type, &q->data, (void *) result);

   return true;

}

/**

 * Allocate a query bo for reading hardware statistics.

 *

 * \param reg_count specifies how many registers need to be read.

 * \param repeat_count specifies how many times the registers are read.  If

 *        zero or negative, a 4KB bo is allocated.

 */

bool

ilo_query_alloc_bo(struct ilo_query *q, int reg_count, int repeat_count,

                   struct intel_winsys *winsys)

{

   const char *name;

   int reg_total;

   name = query_info[q->type].name;

   reg_total = reg_count * repeat_count;

   if (reg_total <= 0)

      reg_total = 4096 / sizeof(uint64_t);

   /* (re-)allocate the bo */

   if (q->reg_total < reg_total) {

      /* registers are 64-bit */

      const int size = reg_total * sizeof(uint64_t);

      if (q->bo)

         intel_bo_unreference(q->bo);

      q->bo = intel_winsys_alloc_buffer(winsys, name, size, 0);

      q->reg_total = (q->bo) ? reg_total : 0;

   }

   /* avoid partial reads */

   if (reg_count)

      q->reg_total -= q->reg_total % reg_count;

   q->reg_read = 0;

   return (q->bo != NULL);

}

/**

 * Initialize query-related functions.

 */

void

ilo_init_query_functions(struct ilo_context *ilo)

{

   ilo->base.create_query = ilo_create_query;

   ilo->base.destroy_query = ilo_destroy_query;

   ilo->base.begin_query = ilo_begin_query;

   ilo->base.end_query = ilo_end_query;

   ilo->base.get_query_result = ilo_get_query_result;

}