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/*
* Copyright (C) 2017 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 "util/u_memory.h"
#include "util/u_inlines.h"
#include "freedreno_query_acc.h"
#include "freedreno_context.h"
#include "freedreno_resource.h"
#include "freedreno_util.h"
static bool
is_active(struct fd_acc_query *aq, enum fd_render_stage stage)
{
return !!(aq->provider->active & stage);
}
static void
fd_acc_destroy_query(struct fd_context *ctx, struct fd_query *q)
{
struct fd_acc_query *aq = fd_acc_query(q);
DBG("%p: active=%d", q, q->active);
pipe_resource_reference(&aq->prsc, NULL);
list_del(&aq->node);
free(aq);
}
static void
realloc_query_bo(struct fd_context *ctx, struct fd_acc_query *aq)
{
struct fd_resource *rsc;
void *map;
pipe_resource_reference(&aq->prsc, NULL);
aq->prsc = pipe_buffer_create(&ctx->screen->base,
PIPE_BIND_QUERY_BUFFER, 0, 0x1000);
/* don't assume the buffer is zero-initialized: */
rsc = fd_resource(aq->prsc);
fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, DRM_FREEDRENO_PREP_WRITE);
map = fd_bo_map(rsc->bo);
memset(map, 0, aq->provider->size);
fd_bo_cpu_fini(rsc->bo);
}
static boolean
fd_acc_begin_query(struct fd_context *ctx, struct fd_query *q)
{
struct fd_batch *batch = ctx->batch;
struct fd_acc_query *aq = fd_acc_query(q);
const struct fd_acc_sample_provider *p = aq->provider;
DBG("%p: active=%d", q, q->active);
/* ->begin_query() discards previous results, so realloc bo: */
realloc_query_bo(ctx, aq);
/* then resume query if needed to collect first sample: */
if (batch && is_active(aq, batch->stage))
p->resume(aq, batch);
/* add to active list: */
assert(list_empty(&aq->node));
list_addtail(&aq->node, &ctx->acc_active_queries);
return true;
}
static void
fd_acc_end_query(struct fd_context *ctx, struct fd_query *q)
{
struct fd_batch *batch = ctx->batch;
struct fd_acc_query *aq = fd_acc_query(q);
const struct fd_acc_sample_provider *p = aq->provider;
DBG("%p: active=%d", q, q->active);
if (batch && is_active(aq, batch->stage))
p->pause(aq, batch);
/* remove from active list: */
list_delinit(&aq->node);
}
static boolean
fd_acc_get_query_result(struct fd_context *ctx, struct fd_query *q,
boolean wait, union pipe_query_result *result)
{
struct fd_acc_query *aq = fd_acc_query(q);
const struct fd_acc_sample_provider *p = aq->provider;
struct fd_resource *rsc = fd_resource(aq->prsc);
DBG("%p: wait=%d, active=%d", q, wait, q->active);
assert(LIST_IS_EMPTY(&aq->node));
/* if !wait, then check the last sample (the one most likely to
* not be ready yet) and bail if it is not ready:
*/
if (!wait) {
int ret;
if (pending(rsc, false)) {
/* piglit spec@arb_occlusion_query@occlusion_query_conform
* test, and silly apps perhaps, get stuck in a loop trying
* to get query result forever with wait==false.. we don't
* wait to flush unnecessarily but we also don't want to
* spin forever:
*/
if (aq->no_wait_cnt++ > 5)
fd_batch_flush(rsc->write_batch, false);
return false;
}
ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe,
DRM_FREEDRENO_PREP_READ | DRM_FREEDRENO_PREP_NOSYNC);
if (ret)
return false;
fd_bo_cpu_fini(rsc->bo);
}
if (rsc->write_batch)
fd_batch_flush(rsc->write_batch, true);
/* get the result: */
fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, DRM_FREEDRENO_PREP_READ);
void *ptr = fd_bo_map(rsc->bo);
p->result(ctx, ptr, result);
fd_bo_cpu_fini(rsc->bo);
return true;
}
static const struct fd_query_funcs acc_query_funcs = {
.destroy_query = fd_acc_destroy_query,
.begin_query = fd_acc_begin_query,
.end_query = fd_acc_end_query,
.get_query_result = fd_acc_get_query_result,
};
struct fd_query *
fd_acc_create_query(struct fd_context *ctx, unsigned query_type)
{
struct fd_acc_query *aq;
struct fd_query *q;
int idx = pidx(query_type);
if ((idx < 0) || !ctx->acc_sample_providers[idx])
return NULL;
aq = CALLOC_STRUCT(fd_acc_query);
if (!aq)
return NULL;
DBG("%p: query_type=%u", aq, query_type);
aq->provider = ctx->acc_sample_providers[idx];
list_inithead(&aq->node);
q = &aq->base;
q->funcs = &acc_query_funcs;
q->type = query_type;
return q;
}
void
fd_acc_query_set_stage(struct fd_batch *batch, enum fd_render_stage stage)
{
if (stage != batch->stage) {
struct fd_acc_query *aq;
LIST_FOR_EACH_ENTRY(aq, &batch->ctx->acc_active_queries, node) {
const struct fd_acc_sample_provider *p = aq->provider;
bool was_active = is_active(aq, batch->stage);
bool now_active = is_active(aq, stage);
if (now_active && !was_active)
p->resume(aq, batch);
else if (was_active && !now_active)
p->pause(aq, batch);
}
}
}
void
fd_acc_query_register_provider(struct pipe_context *pctx,
const struct fd_acc_sample_provider *provider)
{
struct fd_context *ctx = fd_context(pctx);
int idx = pidx(provider->query_type);
assert((0 <= idx) && (idx < MAX_HW_SAMPLE_PROVIDERS));
assert(!ctx->acc_sample_providers[idx]);
ctx->acc_sample_providers[idx] = provider;
}
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