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freedreno/a5xx: timestamp / time-elapsed queries

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Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2017-05-30 07:52:25 -04:00
parent 5ed9e8fd5d
commit 76214b9919
2 changed files with 97 additions and 1 deletions
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96
src/gallium/drivers/freedreno/a5xx/fd5_query.c
View file

@ -144,6 +144,99 @@ static const struct fd_acc_sample_provider occlusion_predicate = {
.result = occlusion_predicate_result,
};
/*
* Timestamp Queries:
*/
static void
timestamp_resume(struct fd_acc_query *aq, struct fd_batch *batch)
{
struct fd_ringbuffer *ring = batch->draw;
OUT_PKT7(ring, CP_EVENT_WRITE, 4);
OUT_RING(ring, CP_EVENT_WRITE_0_EVENT(CACHE_FLUSH_AND_INV_EVENT) |
CP_EVENT_WRITE_0_TIMESTAMP);
OUT_RELOCW(ring, query_sample(aq, start));
OUT_RING(ring, 0x00000000);
fd_reset_wfi(batch);
}
static void
timestamp_pause(struct fd_acc_query *aq, struct fd_batch *batch)
{
struct fd_ringbuffer *ring = batch->draw;
OUT_PKT7(ring, CP_EVENT_WRITE, 4);
OUT_RING(ring, CP_EVENT_WRITE_0_EVENT(CACHE_FLUSH_AND_INV_EVENT) |
CP_EVENT_WRITE_0_TIMESTAMP);
OUT_RELOCW(ring, query_sample(aq, stop));
OUT_RING(ring, 0x00000000);
fd_reset_wfi(batch);
fd_wfi(batch, ring);
/* result += stop - start: */
OUT_PKT7(ring, CP_MEM_TO_MEM, 9);
OUT_RING(ring, CP_MEM_TO_MEM_0_DOUBLE |
CP_MEM_TO_MEM_0_NEG_C);
OUT_RELOCW(ring, query_sample(aq, result)); /* dst */
OUT_RELOC(ring, query_sample(aq, result)); /* srcA */
OUT_RELOC(ring, query_sample(aq, stop)); /* srcB */
OUT_RELOC(ring, query_sample(aq, start)); /* srcC */
}
static uint64_t
ticks_to_ns(struct fd_context *ctx, uint32_t ts)
{
/* This is based on the 19.2MHz always-on rbbm timer.
*
* TODO we should probably query this value from kernel..
*/
return ts * (1000000000 / 19200000);
}
static void
time_elapsed_accumulate_result(struct fd_context *ctx, void *buf,
union pipe_query_result *result)
{
struct fd5_query_sample *sp = buf;
result->u64 = ticks_to_ns(ctx, sp->result);
}
static void
timestamp_accumulate_result(struct fd_context *ctx, void *buf,
union pipe_query_result *result)
{
struct fd5_query_sample *sp = buf;
result->u64 = ticks_to_ns(ctx, sp->result);
}
static const struct fd_acc_sample_provider time_elapsed = {
.query_type = PIPE_QUERY_TIME_ELAPSED,
.active = FD_STAGE_DRAW | FD_STAGE_CLEAR,
.size = sizeof(struct fd5_query_sample),
.resume = timestamp_resume,
.pause = timestamp_pause,
.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_acc_sample_provider timestamp = {
.query_type = PIPE_QUERY_TIMESTAMP,
.active = FD_STAGE_ALL,
.size = sizeof(struct fd5_query_sample),
.resume = timestamp_resume,
.pause = timestamp_pause,
.result = timestamp_accumulate_result,
};
void
fd5_query_context_init(struct pipe_context *pctx)
{
@ -154,4 +247,7 @@ fd5_query_context_init(struct pipe_context *pctx)
fd_acc_query_register_provider(pctx, &occlusion_counter);
fd_acc_query_register_provider(pctx, &occlusion_predicate);
fd_acc_query_register_provider(pctx, &time_elapsed);
fd_acc_query_register_provider(pctx, &timestamp);
}

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

@ -377,7 +377,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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);
return (screen->max_freq > 0) && (is_a4xx(screen) || is_a5xx(screen));
case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MIN_TEXEL_OFFSET: