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radeonsi: avoid redundant SET_PREDICATION packet with QBO workaround

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The QBO workaround compute grid launch emits the render condition atom
when dirty, so install the render condition in the context only after
launching the compute grid. This avoids a redundant SET_PREDICATION.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle
2017-07-27 19:41:26 +02:00
parent dfc1502c84
commit 1c5b7d5235
1 changed files with 9 additions and 4 deletions
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13
src/gallium/drivers/radeon/r600_query.c
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@@ -1790,10 +1790,6 @@ static void r600_render_condition(struct pipe_context *ctx,
struct r600_query_buffer *qbuf;
struct r600_atom *atom = &rctx->render_cond_atom;
rctx->render_cond = query;
rctx->render_cond_invert = condition;
rctx->render_cond_mode = mode;
/* Compute the size of SET_PREDICATION packets. */
atom->num_dw = 0;
if (query) {
@@ -1820,6 +1816,11 @@ static void r600_render_condition(struct pipe_context *ctx,
&rquery->workaround_offset,
(struct pipe_resource **)&rquery->workaround_buf);
/* Reset to NULL to avoid a redundant SET_PREDICATION
* from launching the compute grid.
*/
rctx->render_cond = NULL;
ctx->get_query_result_resource(
ctx, query, true, PIPE_QUERY_TYPE_U64, 0,
&rquery->workaround_buf->b.b, rquery->workaround_offset);
@@ -1836,6 +1837,10 @@ static void r600_render_condition(struct pipe_context *ctx,
}
}
rctx->render_cond = query;
rctx->render_cond_invert = condition;
rctx->render_cond_mode = mode;
rctx->set_atom_dirty(rctx, atom, query != NULL);
}