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/*
* Copyright © 2015 Intel Corporation
*
* 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 (including the next
* paragraph) 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.
*/
#ifndef BRW_PERFORMANCE_QUERY_H
#define BRW_PERFORMANCE_QUERY_H
#include <stdint.h>
#include "brw_context.h"
#include "brw_performance_query_metrics.h"
/*
* When currently allocate only one page for pipeline statistics queries. Here
* we derived the maximum number of counters for that amount.
*/
#define STATS_BO_SIZE 4096
#define STATS_BO_END_OFFSET_BYTES (STATS_BO_SIZE / 2)
#define MAX_STAT_COUNTERS (STATS_BO_END_OFFSET_BYTES / 8)
/*
* The largest OA formats we can use include:
* For Haswell:
* 1 timestamp, 45 A counters, 8 B counters and 8 C counters.
* For Gen8+
* 1 timestamp, 1 clock, 36 A counters, 8 B counters and 8 C counters
*/
#define MAX_OA_REPORT_COUNTERS 62
/**
* i965 representation of a performance query object.
*
* NB: We want to keep this structure relatively lean considering that
* applications may expect to allocate enough objects to be able to
* query around all draw calls in a frame.
*/
struct brw_perf_query_object
{
struct gl_perf_query_object base;
const struct brw_perf_query_info *query;
/* See query->kind to know which state below is in use... */
union {
struct {
/**
* BO containing OA counter snapshots at query Begin/End time.
*/
struct brw_bo *bo;
/**
* Address of mapped of @bo
*/
void *map;
/**
* The MI_REPORT_PERF_COUNT command lets us specify a unique
* ID that will be reflected in the resulting OA report
* that's written by the GPU. This is the ID we're expecting
* in the begin report and the the end report should be
* @begin_report_id + 1.
*/
int begin_report_id;
/**
* Reference the head of the brw->perfquery.sample_buffers
* list at the time that the query started (so we only need
* to look at nodes after this point when looking for samples
* related to this query)
*
* (See struct brw_oa_sample_buf description for more details)
*/
struct exec_node *samples_head;
/**
* Storage for the final accumulated OA counters.
*/
uint64_t accumulator[MAX_OA_REPORT_COUNTERS];
/**
* Hw ID used by the context on which the query was running.
*/
uint32_t hw_id;
/**
* false while in the unaccumulated_elements list, and set to
* true when the final, end MI_RPC snapshot has been
* accumulated.
*/
bool results_accumulated;
/**
* Number of reports accumulated to produce the results.
*/
uint32_t reports_accumulated;
/**
* Frequency of the GT at begin and end of the query.
*/
uint64_t gt_frequency[2];
/**
* Frequency in the slices of the GT at the begin and end of the
* query.
*/
uint64_t slice_frequency[2];
/**
* Frequency in the unslice of the GT at the begin and end of the
* query.
*/
uint64_t unslice_frequency[2];
} oa;
struct {
/**
* BO containing starting and ending snapshots for the
* statistics counters.
*/
struct brw_bo *bo;
} pipeline_stats;
};
};
static inline struct brw_perf_query_info *
brw_perf_query_append_query_info(struct brw_context *brw)
{
brw->perfquery.queries =
reralloc(brw, brw->perfquery.queries,
struct brw_perf_query_info, ++brw->perfquery.n_queries);
return &brw->perfquery.queries[brw->perfquery.n_queries - 1];
}
static inline void
brw_perf_query_info_add_stat_reg(struct brw_perf_query_info *query,
uint32_t reg,
uint32_t numerator,
uint32_t denominator,
const char *name,
const char *description)
{
struct brw_perf_query_counter *counter;
assert(query->n_counters < MAX_STAT_COUNTERS);
counter = &query->counters[query->n_counters];
counter->name = name;
counter->desc = description;
counter->type = GL_PERFQUERY_COUNTER_RAW_INTEL;
counter->data_type = GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL;
counter->size = sizeof(uint64_t);
counter->offset = sizeof(uint64_t) * query->n_counters;
counter->pipeline_stat.reg = reg;
counter->pipeline_stat.numerator = numerator;
counter->pipeline_stat.denominator = denominator;
query->n_counters++;
}
static inline void
brw_perf_query_info_add_basic_stat_reg(struct brw_perf_query_info *query,
uint32_t reg, const char *name)
{
brw_perf_query_info_add_stat_reg(query, reg, 1, 1, name, name);
}
/* Accumulate 32bits OA counters */
static inline void
brw_perf_query_accumulate_uint32(const uint32_t *report0,
const uint32_t *report1,
uint64_t *accumulator)
{
*accumulator += (uint32_t)(*report1 - *report0);
}
/* Accumulate 40bits OA counters */
static inline void
brw_perf_query_accumulate_uint40(int a_index,
const uint32_t *report0,
const uint32_t *report1,
uint64_t *accumulator)
{
const uint8_t *high_bytes0 = (uint8_t *)(report0 + 40);
const uint8_t *high_bytes1 = (uint8_t *)(report1 + 40);
uint64_t high0 = (uint64_t)(high_bytes0[a_index]) << 32;
uint64_t high1 = (uint64_t)(high_bytes1[a_index]) << 32;
uint64_t value0 = report0[a_index + 4] | high0;
uint64_t value1 = report1[a_index + 4] | high1;
uint64_t delta;
if (value0 > value1)
delta = (1ULL << 40) + value1 - value0;
else
delta = value1 - value0;
*accumulator += delta;
}
int brw_perf_query_get_mdapi_oa_data(struct brw_context *brw,
struct brw_perf_query_object *obj,
size_t data_size,
uint8_t *data);
void brw_perf_query_register_mdapi_oa_query(struct brw_context *brw);
void brw_perf_query_register_mdapi_statistic_query(struct brw_context *brw);
#endif /* BRW_PERFORMANCE_QUERY_H */
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