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/*
* Copyright 2010 Jerome Glisse <glisse@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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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:
* Jerome Glisse
* Corbin Simpson
*/
#include <errno.h>
#include <util/u_inlines.h>
#include <util/u_format.h>
#include <util/u_memory.h>
#include "r600_screen.h"
#include "r600_context.h"
static void r600_query_begin(struct r600_context *rctx, struct r600_query *rquery)
{
struct r600_screen *rscreen = rctx->screen;
struct radeon_state *rstate = &rquery->rstate;
radeon_state_fini(rstate);
radeon_state_init(rstate, rscreen->rw, R600_STATE_QUERY_BEGIN, 0, 0);
rstate->states[R600_QUERY__OFFSET] = rquery->num_results;
radeon_ws_bo_reference(rscreen->rw, &rstate->bo[0], rquery->buffer);
rstate->nbo = 1;
rstate->placement[0] = RADEON_GEM_DOMAIN_GTT;
if (radeon_state_pm4(rstate)) {
radeon_state_fini(rstate);
}
}
static void r600_query_end(struct r600_context *rctx, struct r600_query *rquery)
{
struct r600_screen *rscreen = rctx->screen;
struct radeon_state *rstate = &rquery->rstate;
radeon_state_fini(rstate);
radeon_state_init(rstate, rscreen->rw, R600_STATE_QUERY_END, 0, 0);
rstate->states[R600_QUERY__OFFSET] = rquery->num_results + 8;
radeon_ws_bo_reference(rscreen->rw, &rstate->bo[0], rquery->buffer);
rstate->nbo = 1;
rstate->placement[0] = RADEON_GEM_DOMAIN_GTT;
if (radeon_state_pm4(rstate)) {
radeon_state_fini(rstate);
}
}
static struct pipe_query *r600_create_query(struct pipe_context *ctx, unsigned query_type)
{
struct r600_screen *rscreen = r600_screen(ctx->screen);
struct r600_context *rctx = r600_context(ctx);
struct r600_query *q;
if (query_type != PIPE_QUERY_OCCLUSION_COUNTER)
return NULL;
q = CALLOC_STRUCT(r600_query);
if (!q)
return NULL;
q->type = query_type;
q->buffer_size = 4096;
q->buffer = radeon_ws_bo(rscreen->rw, q->buffer_size, 1);
if (!q->buffer) {
FREE(q);
return NULL;
}
LIST_ADDTAIL(&q->list, &rctx->query_list);
return (struct pipe_query *)q;
}
static void r600_destroy_query(struct pipe_context *ctx,
struct pipe_query *query)
{
struct r600_screen *rscreen = r600_screen(ctx->screen);
struct r600_query *q = r600_query(query);
radeon_ws_bo_reference(rscreen->rw, &q->buffer, NULL);
LIST_DEL(&q->list);
FREE(query);
}
static void r600_query_result(struct pipe_context *ctx, struct r600_query *rquery)
{
struct r600_screen *rscreen = r600_screen(ctx->screen);
u64 start, end;
u32 *results;
int i;
radeon_ws_bo_wait(rscreen->rw, rquery->buffer);
results = radeon_ws_bo_map(rscreen->rw, rquery->buffer);
for (i = 0; i < rquery->num_results; i += 4) {
start = (u64)results[i] | (u64)results[i + 1] << 32;
end = (u64)results[i + 2] | (u64)results[i + 3] << 32;
if ((start & 0x8000000000000000UL) && (end & 0x8000000000000000UL)) {
rquery->result += end - start;
}
}
radeon_ws_bo_unmap(rscreen->rw, rquery->buffer);
rquery->num_results = 0;
}
static void r600_query_resume(struct pipe_context *ctx, struct r600_query *rquery)
{
struct r600_context *rctx = r600_context(ctx);
if (rquery->num_results >= ((rquery->buffer_size >> 2) - 2)) {
/* running out of space */
if (!rquery->flushed) {
ctx->flush(ctx, 0, NULL);
}
r600_query_result(ctx, rquery);
}
r600_query_begin(rctx, rquery);
rquery->flushed = false;
}
static void r600_query_suspend(struct pipe_context *ctx, struct r600_query *rquery)
{
struct r600_context *rctx = r600_context(ctx);
r600_query_end(rctx, rquery);
rquery->num_results += 16;
}
static void r600_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct r600_context *rctx = r600_context(ctx);
struct r600_query *rquery = r600_query(query);
int r;
rquery->state = R600_QUERY_STATE_STARTED;
rquery->num_results = 0;
rquery->flushed = false;
r600_query_resume(ctx, rquery);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
if (r == -EBUSY) {
/* this shouldn't happen */
R600_ERR("had to flush while emitting end query\n");
ctx->flush(ctx, 0, NULL);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
}
}
static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct r600_context *rctx = r600_context(ctx);
struct r600_query *rquery = r600_query(query);
int r;
rquery->state &= ~R600_QUERY_STATE_STARTED;
rquery->state |= R600_QUERY_STATE_ENDED;
r600_query_suspend(ctx, rquery);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
if (r == -EBUSY) {
/* this shouldn't happen */
R600_ERR("had to flush while emitting end query\n");
ctx->flush(ctx, 0, NULL);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
}
}
void r600_queries_suspend(struct pipe_context *ctx)
{
struct r600_context *rctx = r600_context(ctx);
struct r600_query *rquery;
int r;
LIST_FOR_EACH_ENTRY(rquery, &rctx->query_list, list) {
if (rquery->state & R600_QUERY_STATE_STARTED) {
r600_query_suspend(ctx, rquery);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
if (r == -EBUSY) {
/* this shouldn't happen */
R600_ERR("had to flush while emitting end query\n");
ctx->flush(ctx, 0, NULL);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
}
}
rquery->state |= R600_QUERY_STATE_SUSPENDED;
}
}
void r600_queries_resume(struct pipe_context *ctx)
{
struct r600_context *rctx = r600_context(ctx);
struct r600_query *rquery;
int r;
LIST_FOR_EACH_ENTRY(rquery, &rctx->query_list, list) {
if (rquery->state & R600_QUERY_STATE_STARTED) {
r600_query_resume(ctx, rquery);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
if (r == -EBUSY) {
/* this shouldn't happen */
R600_ERR("had to flush while emitting end query\n");
ctx->flush(ctx, 0, NULL);
r = radeon_ctx_set_query_state(rctx->ctx, &rquery->rstate);
}
}
rquery->state &= ~R600_QUERY_STATE_SUSPENDED;
}
}
static boolean r600_get_query_result(struct pipe_context *ctx,
struct pipe_query *query,
boolean wait, void *vresult)
{
struct r600_query *rquery = r600_query(query);
uint64_t *result = (uint64_t*)vresult;
if (!rquery->flushed) {
ctx->flush(ctx, 0, NULL);
rquery->flushed = true;
}
r600_query_result(ctx, rquery);
*result = rquery->result;
rquery->result = 0;
return TRUE;
}
void r600_init_query_functions(struct r600_context* rctx)
{
LIST_INITHEAD(&rctx->query_list);
rctx->context.create_query = r600_create_query;
rctx->context.destroy_query = r600_destroy_query;
rctx->context.begin_query = r600_begin_query;
rctx->context.end_query = r600_end_query;
rctx->context.get_query_result = r600_get_query_result;
}
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