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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "freedreno_query_hw.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
#include "fd3_query.h"
#include "fd3_util.h"
struct fd_rb_samp_ctrs {
uint64_t ctr[16];
};
/*
* Occlusion Query:
*
* OCCLUSION_COUNTER and OCCLUSION_PREDICATE differ only in how they
* interpret results
*/
static struct fd_hw_sample *
occlusion_get_sample(struct fd_context *ctx, struct fd_ringbuffer *ring)
{
struct fd_hw_sample *samp =
fd_hw_sample_init(ctx, sizeof(struct fd_rb_samp_ctrs));
/* Set RB_SAMPLE_COUNT_ADDR to samp->offset plus value of
* HW_QUERY_BASE_REG register:
*/
OUT_PKT3(ring, CP_SET_CONSTANT, 3);
OUT_RING(ring, CP_REG(REG_A3XX_RB_SAMPLE_COUNT_ADDR) | 0x80000000);
OUT_RING(ring, HW_QUERY_BASE_REG);
OUT_RING(ring, samp->offset);
OUT_PKT0(ring, REG_A3XX_RB_SAMPLE_COUNT_CONTROL, 1);
OUT_RING(ring, A3XX_RB_SAMPLE_COUNT_CONTROL_COPY);
OUT_PKT3(ring, CP_DRAW_INDX, 3);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, DRAW(DI_PT_POINTLIST_A2XX, DI_SRC_SEL_AUTO_INDEX,
INDEX_SIZE_IGN, USE_VISIBILITY));
OUT_RING(ring, 0); /* NumIndices */
fd_event_write(ctx, ring, ZPASS_DONE);
OUT_PKT0(ring, REG_A3XX_RBBM_PERFCTR_CTL, 1);
OUT_RING(ring, A3XX_RBBM_PERFCTR_CTL_ENABLE);
OUT_PKT0(ring, REG_A3XX_VBIF_PERF_CNT_EN, 1);
OUT_RING(ring, A3XX_VBIF_PERF_CNT_EN_CNT0 |
A3XX_VBIF_PERF_CNT_EN_CNT1 |
A3XX_VBIF_PERF_CNT_EN_PWRCNT0 |
A3XX_VBIF_PERF_CNT_EN_PWRCNT1 |
A3XX_VBIF_PERF_CNT_EN_PWRCNT2);
return samp;
}
static uint64_t
count_samples(const struct fd_rb_samp_ctrs *start,
const struct fd_rb_samp_ctrs *end)
{
uint64_t n = 0;
unsigned i;
/* not quite sure what all of these are, possibly different
* counters for each MRT render target:
*/
for (i = 0; i < 16; i += 4)
n += end->ctr[i] - start->ctr[i];
return n;
}
static void
occlusion_counter_accumulate_result(struct fd_context *ctx,
const void *start, const void *end,
union pipe_query_result *result)
{
uint64_t n = count_samples(start, end);
result->u64 += n;
}
static void
occlusion_predicate_accumulate_result(struct fd_context *ctx,
const void *start, const void *end,
union pipe_query_result *result)
{
uint64_t n = count_samples(start, end);
result->b |= (n > 0);
}
static const struct fd_hw_sample_provider occlusion_counter = {
.query_type = PIPE_QUERY_OCCLUSION_COUNTER,
.active = FD_STAGE_DRAW,
.get_sample = occlusion_get_sample,
.accumulate_result = occlusion_counter_accumulate_result,
};
static const struct fd_hw_sample_provider occlusion_predicate = {
.query_type = PIPE_QUERY_OCCLUSION_PREDICATE,
.active = FD_STAGE_DRAW,
.get_sample = occlusion_get_sample,
.accumulate_result = occlusion_predicate_accumulate_result,
};
void fd3_query_context_init(struct pipe_context *pctx)
{
fd_hw_query_register_provider(pctx, &occlusion_counter);
fd_hw_query_register_provider(pctx, &occlusion_predicate);
}
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