iris: Add iris_resolve_conditional_render().

This function can be used to stall on the CPU and resolve the predicate
for the conditional render. It will convert ice->state.predicate from
IRIS_PREDICATE_STATE_USE_BIT to either IRIS_PREDICATE_STATE_RENDER or
IRIS_PREDICATE_STATE_DONT_RENDER, depending on the result of the query.

v2:
 - return void (Ken)
 - update the stored condition (Ken)
 - simplify the code leading to resolve the predicate (Ken)

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gallium/drivers/iris/iris_context.h b/src/gallium/drivers/iris/iris_context.h
index 8f91d28446f..f3a5bdb7eb8 100644
--- a/src/gallium/drivers/iris/iris_context.h
+++ b/src/gallium/drivers/iris/iris_context.h
@@ -515,6 +515,11 @@ struct iris_context {
    } shaders;
 
    struct {
+      struct iris_query *query;
+      bool condition;
+   } condition;
+
+   struct {
       uint64_t dirty;
       uint64_t dirty_for_nos[IRIS_NOS_COUNT];
 
@@ -781,6 +786,7 @@ void iris_math_div32_gpr0(struct iris_context *ice,
 
 uint64_t iris_timebase_scale(const struct gen_device_info *devinfo,
                              uint64_t gpu_timestamp);
+void iris_resolve_conditional_render(struct iris_context *ice);
 
 /* iris_resolve.c */