freedreno: batch query prep-work

For batch queries we have N different query_type's for one query, so
mapping a single query_type to a sample_provider doesn't really work
out.  Instead add a new constructor to construct a query directly
from a sample_provider.

Also, the sample buffer size needs to be determined at runtime, as
it depends on the number of query_types.

Signed-off-by: Rob Clark <robdclark@gmail.com>

src/gallium/drivers/freedreno/freedreno_query_acc.c

@@ -49,6 +49,7 @@ fd_acc_destroy_query(struct fd_context *ctx, struct fd_query *q)
 	pipe_resource_reference(&aq->prsc, NULL);
 	list_del(&aq->node);
 
+	free(aq->query_data);
 	free(aq);
 }
 
@@ -69,7 +70,7 @@ realloc_query_bo(struct fd_context *ctx, struct fd_acc_query *aq)
 	fd_bo_cpu_prep(rsc->bo, ctx->pipe, DRM_FREEDRENO_PREP_WRITE);
 
 	map = fd_bo_map(rsc->bo);
-	memset(map, 0, aq->provider->size);
+	memset(map, 0, aq->size);
 	fd_bo_cpu_fini(rsc->bo);
 }
 
@@ -171,14 +172,11 @@ static const struct fd_query_funcs acc_query_funcs = {
 };
 
 struct fd_query *
-fd_acc_create_query(struct fd_context *ctx, unsigned query_type)
+fd_acc_create_query2(struct fd_context *ctx, unsigned query_type,
+		const struct fd_acc_sample_provider *provider)
 {
 	struct fd_acc_query *aq;
 	struct fd_query *q;
-	int idx = pidx(query_type);
-
-	if ((idx < 0) || !ctx->acc_sample_providers[idx])
-		return NULL;
 
 	aq = CALLOC_STRUCT(fd_acc_query);
 	if (!aq)
@@ -186,7 +184,8 @@ fd_acc_create_query(struct fd_context *ctx, unsigned query_type)
 
 	DBG("%p: query_type=%u", aq, query_type);
 
-	aq->provider = ctx->acc_sample_providers[idx];
+	aq->provider = provider;
+	aq->size = provider->size;
 
 	list_inithead(&aq->node);
 
@@ -197,6 +196,18 @@ fd_acc_create_query(struct fd_context *ctx, unsigned query_type)
 	return q;
 }
 
+struct fd_query *
+fd_acc_create_query(struct fd_context *ctx, unsigned query_type)
+{
+	int idx = pidx(query_type);
+
+	if ((idx < 0) || !ctx->acc_sample_providers[idx])
+		return NULL;
+
+	return fd_acc_create_query2(ctx, query_type,
+			ctx->acc_sample_providers[idx]);
+}
+
 void
 fd_acc_query_set_stage(struct fd_batch *batch, enum fd_render_stage stage)
 {

src/gallium/drivers/freedreno/freedreno_query_acc.h

@@ -77,11 +77,18 @@ struct fd_acc_query {
 	const struct fd_acc_sample_provider *provider;
 
 	struct pipe_resource *prsc;
-	unsigned offset;
+
+	/* usually the same as provider->size but for batch queries we
+	 * need to calculate the size dynamically when the query is
+	 * allocated:
+	 */
+	unsigned size;
 
 	struct list_head node;   /* list-node in ctx->active_acc_queries */
 
 	int no_wait_cnt;         /* see fd_acc_get_query_result() */
+
+	void *query_data;        /* query specific data */
 };
 
 static inline struct fd_acc_query *
@@ -91,6 +98,8 @@ fd_acc_query(struct fd_query *q)
 }
 
 struct fd_query * fd_acc_create_query(struct fd_context *ctx, unsigned query_type);
+struct fd_query * fd_acc_create_query2(struct fd_context *ctx, unsigned query_type,
+		const struct fd_acc_sample_provider *provider);
 void fd_acc_query_set_stage(struct fd_batch *batch, enum fd_render_stage stage);
 void fd_acc_query_register_provider(struct pipe_context *pctx,
 		const struct fd_acc_sample_provider *provider);