gallium/radeon: add flag R600_QUERY_HW_FLAG_BEGIN_RESUMES

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeon/r600_query.c b/src/gallium/drivers/radeon/r600_query.c
index d4d7292..e6fda0c 100644 (file)
--- a/src/gallium/drivers/radeon/r600_query.c
+++ b/src/gallium/drivers/radeon/r600_query.c
@@ -763,7 +763,8 @@ bool r600_query_hw_begin(struct r600_common_context *rctx,
                return false;
        }
 
-       r600_query_hw_reset_buffers(rctx, query);
+       if (!(query->flags & R600_QUERY_HW_FLAG_BEGIN_RESUMES))
+               r600_query_hw_reset_buffers(rctx, query);
 
        r600_query_hw_emit_start(rctx, query);
        if (!query->buffer.buf)

diff --git a/src/gallium/drivers/radeon/r600_query.h b/src/gallium/drivers/radeon/r600_query.h
index e99a911..1a0ac80 100644 (file)
--- a/src/gallium/drivers/radeon/r600_query.h
+++ b/src/gallium/drivers/radeon/r600_query.h
@@ -92,6 +92,8 @@ struct r600_query {
 enum {
        R600_QUERY_HW_FLAG_NO_START = (1 << 0),
        R600_QUERY_HW_FLAG_PREDICATE = (1 << 1),
+       /* whether begin_query doesn't clear the result */
+       R600_QUERY_HW_FLAG_BEGIN_RESUMES = (1 << 2),
 };
 
 struct r600_query_hw_ops {