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/*
* Copyright 2015 Samuel Pitoiset
*
* 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.
*/
#include "nv50/nv50_context.h"
#include "nv50/nv50_query_hw_metric.h"
#include "nv50/nv50_query_hw_sm.h"
/* === PERFORMANCE MONITORING METRICS for NV84+ === */
static const char *nv50_hw_metric_names[] =
{
"metric-branch_efficiency",
};
struct nv50_hw_metric_query_cfg {
uint32_t queries[4];
uint32_t num_queries;
};
#define _SM(n) NV50_HW_SM_QUERY(NV50_HW_SM_QUERY_ ##n)
#define _M(n, c) [NV50_HW_METRIC_QUERY_##n] = c
/* ==== Compute capability 1.1 (G84+) ==== */
static const struct nv50_hw_metric_query_cfg
sm11_branch_efficiency =
{
.queries[0] = _SM(BRANCH),
.queries[1] = _SM(DIVERGENT_BRANCH),
.num_queries = 2,
};
static const struct nv50_hw_metric_query_cfg *sm11_hw_metric_queries[] =
{
_M(BRANCH_EFFICIENCY, &sm11_branch_efficiency),
};
#undef _SM
#undef _M
static const struct nv50_hw_metric_query_cfg *
nv50_hw_metric_query_get_cfg(struct nv50_context *nv50,
struct nv50_hw_query *hq)
{
struct nv50_query *q = &hq->base;
return sm11_hw_metric_queries[q->type - NV50_HW_METRIC_QUERY(0)];
}
static void
nv50_hw_metric_destroy_query(struct nv50_context *nv50,
struct nv50_hw_query *hq)
{
struct nv50_hw_metric_query *hmq = nv50_hw_metric_query(hq);
unsigned i;
for (i = 0; i < hmq->num_queries; i++)
if (hmq->queries[i]->funcs->destroy_query)
hmq->queries[i]->funcs->destroy_query(nv50, hmq->queries[i]);
FREE(hmq);
}
static bool
nv50_hw_metric_begin_query(struct nv50_context *nv50, struct nv50_hw_query *hq)
{
struct nv50_hw_metric_query *hmq = nv50_hw_metric_query(hq);
bool ret = false;
unsigned i;
for (i = 0; i < hmq->num_queries; i++) {
ret = hmq->queries[i]->funcs->begin_query(nv50, hmq->queries[i]);
if (!ret)
return ret;
}
return ret;
}
static void
nv50_hw_metric_end_query(struct nv50_context *nv50, struct nv50_hw_query *hq)
{
struct nv50_hw_metric_query *hmq = nv50_hw_metric_query(hq);
unsigned i;
for (i = 0; i < hmq->num_queries; i++)
hmq->queries[i]->funcs->end_query(nv50, hmq->queries[i]);
}
static uint64_t
sm11_hw_metric_calc_result(struct nv50_hw_query *hq, uint64_t res64[8])
{
switch (hq->base.type - NV50_HW_METRIC_QUERY(0)) {
case NV50_HW_METRIC_QUERY_BRANCH_EFFICIENCY:
/* (branch / (branch + divergent_branch)) * 100 */
if (res64[0] + res64[1])
return (res64[0] / (double)(res64[0] + res64[1])) * 100;
break;
default:
debug_printf("invalid metric type: %d\n",
hq->base.type - NV50_HW_METRIC_QUERY(0));
break;
}
return 0;
}
static bool
nv50_hw_metric_get_query_result(struct nv50_context *nv50,
struct nv50_hw_query *hq, bool wait,
union pipe_query_result *result)
{
struct nv50_hw_metric_query *hmq = nv50_hw_metric_query(hq);
union pipe_query_result results[4] = {};
uint64_t res64[4] = {};
bool ret = false;
unsigned i;
for (i = 0; i < hmq->num_queries; i++) {
ret = hmq->queries[i]->funcs->get_query_result(nv50, hmq->queries[i],
wait, &results[i]);
if (!ret)
return ret;
res64[i] = *(uint64_t *)&results[i];
}
*(uint64_t *)result = sm11_hw_metric_calc_result(hq, res64);
return ret;
}
static const struct nv50_hw_query_funcs hw_metric_query_funcs = {
.destroy_query = nv50_hw_metric_destroy_query,
.begin_query = nv50_hw_metric_begin_query,
.end_query = nv50_hw_metric_end_query,
.get_query_result = nv50_hw_metric_get_query_result,
};
struct nv50_hw_query *
nv50_hw_metric_create_query(struct nv50_context *nv50, unsigned type)
{
const struct nv50_hw_metric_query_cfg *cfg;
struct nv50_hw_metric_query *hmq;
struct nv50_hw_query *hq;
unsigned i;
if (type < NV50_HW_METRIC_QUERY(0) || type > NV50_HW_METRIC_QUERY_LAST)
return NULL;
hmq = CALLOC_STRUCT(nv50_hw_metric_query);
if (!hmq)
return NULL;
hq = &hmq->base;
hq->funcs = &hw_metric_query_funcs;
hq->base.type = type;
cfg = nv50_hw_metric_query_get_cfg(nv50, hq);
for (i = 0; i < cfg->num_queries; i++) {
hmq->queries[i] = nv50_hw_sm_create_query(nv50, cfg->queries[i]);
if (!hmq->queries[i]) {
nv50_hw_metric_destroy_query(nv50, hq);
return NULL;
}
hmq->num_queries++;
}
return hq;
}
int
nv50_hw_metric_get_driver_query_info(struct nv50_screen *screen, unsigned id,
struct pipe_driver_query_info *info)
{
int count = 0;
if (screen->compute)
if (screen->base.class_3d >= NV84_3D_CLASS)
count += NV50_HW_METRIC_QUERY_COUNT;
if (!info)
return count;
if (id < count) {
if (screen->compute) {
if (screen->base.class_3d >= NV84_3D_CLASS) {
info->name = nv50_hw_metric_names[id];
info->query_type = NV50_HW_METRIC_QUERY(id);
info->group_id = NV50_HW_METRIC_QUERY_GROUP;
return 1;
}
}
}
return 0;
}
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