r600g: don't suspend TIME_ELAPSED queries during flushing

According to the GL spec, the result should be equivalent to comparing
two timestamps.

4 files changed, 8 insertions, 54 deletions

diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
index 6c8cb9d..486bc7a 100644
--- a/src/gallium/drivers/r600/r600_hw_context.c
+++ b/src/gallium/drivers/r600/r600_hw_context.c
@@ -391,7 +391,6 @@ void r600_need_cs_space(struct r600_context *ctx, unsigned num_dw,
 
 	/* Count in queries_suspend. */
 	num_dw += ctx->num_cs_dw_nontimer_queries_suspend;
-	num_dw += ctx->num_cs_dw_timer_queries_suspend;
 
 	/* Count in streamout_end at the end of CS. */
 	num_dw += ctx->num_cs_dw_streamout_end;
@@ -691,15 +690,10 @@ void r600_context_flush(struct r600_context *ctx, unsigned flags)
 	if (cs->cdw == ctx->start_cs_cmd.num_dw)
 		return;
 
-	ctx->timer_queries_suspended = false;
 	ctx->nontimer_queries_suspended = false;
 	ctx->streamout_suspended = false;
 
 	/* suspend queries */
-	if (ctx->num_cs_dw_timer_queries_suspend) {
-		r600_suspend_timer_queries(ctx);
-		ctx->timer_queries_suspended = true;
-	}
 	if (ctx->num_cs_dw_nontimer_queries_suspend) {
 		r600_suspend_nontimer_queries(ctx);
 		ctx->nontimer_queries_suspended = true;
@@ -827,9 +821,6 @@ void r600_begin_new_cs(struct r600_context *ctx)
 	}
 
 	/* resume queries */
-	if (ctx->timer_queries_suspended) {
-		r600_resume_timer_queries(ctx);
-	}
 	if (ctx->nontimer_queries_suspended) {
 		r600_resume_nontimer_queries(ctx);
 	}
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index b02f875..65dcbf8 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -227,7 +227,6 @@ static struct pipe_context *r600_create_context(struct pipe_screen *screen, void
 	rctx->chip_class = rscreen->chip_class;
 	rctx->keep_tiling_flags = rscreen->info.drm_minor >= 12;
 
-	LIST_INITHEAD(&rctx->active_timer_queries);
 	LIST_INITHEAD(&rctx->active_nontimer_queries);
 	LIST_INITHEAD(&rctx->dirty);
 	LIST_INITHEAD(&rctx->enable_list);
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 8418737..6b7c053 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -496,18 +496,12 @@ struct r600_context {
 	/* Queries. */
 	/* The list of active queries. Only one query of each type can be active. */
 	int				num_occlusion_queries;
-	/* Manage queries in two separate groups:
-	 * The timer ones and the others (streamout, occlusion).
-	 *
-	 * We do this because we should only suspend non-timer queries for u_blitter,
-	 * and later if the non-timer queries are suspended, the context flush should
-	 * only suspend and resume the timer queries. */
-	struct list_head		active_timer_queries;
-	unsigned			num_cs_dw_timer_queries_suspend;
+	/* Keep track of non-timer queries, because they should be suspended
+	 * during context flushing.
+	 * The timer queries (TIME_ELAPSED) shouldn't be suspended. */
 	struct list_head		active_nontimer_queries;
 	unsigned			num_cs_dw_nontimer_queries_suspend;
-	/* Flags if queries have been suspended. */
-	bool				timer_queries_suspended;
+	/* If queries have been suspended. */
 	bool				nontimer_queries_suspended;
 
 	/* Render condition. */
@@ -636,8 +630,6 @@ void r600_flush(struct pipe_context *ctx, struct pipe_fence_handle **fence,
 void r600_init_query_functions(struct r600_context *rctx);
 void r600_suspend_nontimer_queries(struct r600_context *ctx);
 void r600_resume_nontimer_queries(struct r600_context *ctx);
-void r600_suspend_timer_queries(struct r600_context *ctx);
-void r600_resume_timer_queries(struct r600_context *ctx);
 
 /* r600_resource.c */
 void r600_init_context_resource_functions(struct r600_context *r600);
diff --git a/src/gallium/drivers/r600/r600_query.c b/src/gallium/drivers/r600/r600_query.c
index d35d3fb..083d510 100644
--- a/src/gallium/drivers/r600/r600_query.c
+++ b/src/gallium/drivers/r600/r600_query.c
@@ -156,9 +156,7 @@ static void r600_emit_query_begin(struct r600_context *ctx, struct r600_query *q
 	cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
 	cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, query->buffer.buf, RADEON_USAGE_WRITE);
 
-	if (r600_is_timer_query(query->type)) {
-		ctx->num_cs_dw_timer_queries_suspend += query->num_cs_dw;
-	} else {
+	if (!r600_is_timer_query(query->type)) {
 		ctx->num_cs_dw_nontimer_queries_suspend += query->num_cs_dw;
 	}
 }
@@ -213,9 +211,7 @@ static void r600_emit_query_end(struct r600_context *ctx, struct r600_query *que
 	query->buffer.results_end += query->result_size;
 
 	if (r600_query_needs_begin(query->type)) {
-		if (r600_is_timer_query(query->type)) {
-			ctx->num_cs_dw_timer_queries_suspend -= query->num_cs_dw;
-		} else {
+		if (!r600_is_timer_query(query->type)) {
 			ctx->num_cs_dw_nontimer_queries_suspend -= query->num_cs_dw;
 		}
 	}
@@ -366,9 +362,7 @@ static void r600_begin_query(struct pipe_context *ctx, struct pipe_query *query)
 
 	r600_emit_query_begin(rctx, rquery);
 
-	if (r600_is_timer_query(rquery->type)) {
-		LIST_ADDTAIL(&rquery->list, &rctx->active_timer_queries);
-	} else {
+	if (!r600_is_timer_query(rquery->type)) {
 		LIST_ADDTAIL(&rquery->list, &rctx->active_nontimer_queries);
 	}
 }
@@ -380,7 +374,7 @@ static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
 
 	r600_emit_query_end(rctx, rquery);
 
-	if (r600_query_needs_begin(rquery->type)) {
+	if (r600_query_needs_begin(rquery->type) && !r600_is_timer_query(rquery->type)) {
 		LIST_DELINIT(&rquery->list);
 	}
 }
@@ -581,28 +575,6 @@ void r600_resume_nontimer_queries(struct r600_context *ctx)
 	}
 }
 
-void r600_suspend_timer_queries(struct r600_context *ctx)
-{
-	struct r600_query *query;
-
-	LIST_FOR_EACH_ENTRY(query, &ctx->active_timer_queries, list) {
-		r600_emit_query_end(ctx, query);
-	}
-
-	assert(ctx->num_cs_dw_timer_queries_suspend == 0);
-}
-
-void r600_resume_timer_queries(struct r600_context *ctx)
-{
-	struct r600_query *query;
-
-	assert(ctx->num_cs_dw_timer_queries_suspend == 0);
-
-	LIST_FOR_EACH_ENTRY(query, &ctx->active_timer_queries, list) {
-		r600_emit_query_begin(ctx, query);
-	}
-}
-
 void r600_init_query_functions(struct r600_context *rctx)
 {
 	rctx->context.create_query = r600_create_query;