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freedreno/a4xx: timestamp queries

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Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2016-02-14 11:14:06 -05:00 • committed by Rob Clark
parent b888d8e937
commit 9253dcde58
3 changed files with 34 additions and 1 deletions
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28
src/gallium/drivers/freedreno/a4xx/fd4_query.c
View file

@ -224,6 +224,19 @@ time_elapsed_accumulate_result(struct fd_context *ctx,
result->u64 += n * 1000000000 / ctx->screen->max_freq;
}
static void
timestamp_accumulate_result(struct fd_context *ctx,
const void *start, const void *end,
union pipe_query_result *result)
{
/* just return the value from fist tile: */
if (result->u64 != 0)
return;
uint64_t n = *(uint64_t *)start;
/* max_freq is in Hz, convert cycle count to ns: */
result->u64 = n * 1000000000 / ctx->screen->max_freq;
}
static const struct fd_hw_sample_provider occlusion_counter = {
.query_type = PIPE_QUERY_OCCLUSION_COUNTER,
.active = FD_STAGE_DRAW,
@ -246,9 +259,24 @@ static const struct fd_hw_sample_provider time_elapsed = {
.accumulate_result = time_elapsed_accumulate_result,
};
/* NOTE: timestamp query isn't going to give terribly sensible results
* on a tiler. But it is needed by qapitrace profile heatmap. If you
* add in a binning pass, the results get even more non-sensical. So
* we just return the timestamp on the first tile and hope that is
* kind of good enough.
*/
static const struct fd_hw_sample_provider timestamp = {
.query_type = PIPE_QUERY_TIMESTAMP,
.active = FD_STAGE_ALL,
.enable = time_elapsed_enable,
.get_sample = time_elapsed_get_sample,
.accumulate_result = timestamp_accumulate_result,
};
void fd4_query_context_init(struct pipe_context *pctx)
{
fd_hw_query_register_provider(pctx, &occlusion_counter);
fd_hw_query_register_provider(pctx, &occlusion_predicate);
fd_hw_query_register_provider(pctx, &time_elapsed);
fd_hw_query_register_provider(pctx, &timestamp);
}

5
src/gallium/drivers/freedreno/freedreno_query_hw.c
View file

@ -47,8 +47,13 @@ static int pidx(unsigned query_type)
return 0;
case PIPE_QUERY_OCCLUSION_PREDICATE:
return 1;
/* TODO currently queries only emitted in main pass (not in binning pass)..
* which is fine for occlusion query, but pretty much not anything else.
*/
case PIPE_QUERY_TIME_ELAPSED:
return 2;
case PIPE_QUERY_TIMESTAMP:
return 3;
default:
return -1;
}

2
src/gallium/drivers/freedreno/freedreno_screen.c
View file

@ -332,11 +332,11 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return is_a3xx(screen) ? 1 : 0;
/* Queries. */
case PIPE_CAP_QUERY_TIMESTAMP:
case PIPE_CAP_QUERY_BUFFER_OBJECT:
return 0;
case PIPE_CAP_OCCLUSION_QUERY:
return is_a3xx(screen) || is_a4xx(screen);
case PIPE_CAP_QUERY_TIMESTAMP:
case PIPE_CAP_QUERY_TIME_ELAPSED:
/* only a4xx, requires new enough kernel so we know max_freq: */
return (screen->max_freq > 0) && is_a4xx(screen);