vc4: Avoid VS shader recompiles by keeping a set of FS inputs seen so far.

We don't want to bake the whole array into the FS key, because of the
hashing overhead.  But we can keep a set of the arrays seen, and use a
pointer to the copy in as the array's proxy.

Between this and the previous patch, gl-1.0-blend-func now passes on
hardware, where previously it was filling the 256MB CMA area with shaders
and OOMing.

Drops 712 shaders from shader-db.

1 files changed, 1 insertions, 6 deletions

diff --git a/src/gallium/drivers/vc4/vc4_qir.h b/src/gallium/drivers/vc4/vc4_qir.h
index b8ded30711c..e6297c5c82c 100644
--- a/src/gallium/drivers/vc4/vc4_qir.h
+++ b/src/gallium/drivers/vc4/vc4_qir.h
@@ -352,12 +352,7 @@ struct vc4_fs_key {
 struct vc4_vs_key {
         struct vc4_key base;
 
-        /**
-         * This is a proxy for the array of FS input semantics, which is
-         * larger than we would want to put in the key.
-         */
-        uint64_t compiled_fs_id;
-
+        const struct vc4_fs_inputs *fs_inputs;
         enum pipe_format attr_formats[8];
         bool is_coord;
         bool per_vertex_point_size;