freedreno: re-order support for hw queries

Push query state down to batch, and use the resource tracking to figure
out which batch(es) need to be flushed to get the query result.

This means we actually need to allocate the prsc up front, before we
know the size.  So we have to add a special way to allocate an un-
backed resource, and then later allocate the backing storage.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_resource.h b/src/gallium/drivers/freedreno/freedreno_resource.h
index fcdb4c1e364..8caab6b8a5a 100644
--- a/src/gallium/drivers/freedreno/freedreno_resource.h
+++ b/src/gallium/drivers/freedreno/freedreno_resource.h
@@ -104,6 +104,23 @@ fd_resource(struct pipe_resource *ptex)
 	return (struct fd_resource *)ptex;
 }
 
+static inline bool
+pending(struct fd_resource *rsc, bool write)
+{
+	/* if we have a pending GPU write, we are busy in any case: */
+	if (rsc->write_batch)
+		return true;
+
+	/* if CPU wants to write, but we are pending a GPU read, we are busy: */
+	if (write && rsc->batch_mask)
+		return true;
+
+	if (rsc->stencil && pending(rsc->stencil, write))
+		return true;
+
+	return false;
+}
+
 struct fd_transfer {
 	struct pipe_transfer base;
 	void *staging;
@@ -140,6 +157,8 @@ fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
 void fd_resource_screen_init(struct pipe_screen *pscreen);
 void fd_resource_context_init(struct pipe_context *pctx);
 
+void fd_resource_resize(struct pipe_resource *prsc, uint32_t sz);
+
 bool fd_render_condition_check(struct pipe_context *pctx);
 
 #endif /* FREEDRENO_RESOURCE_H_ */