broadcom/vc5: Introduce a helper for pre-packing our V3DXX structs.

This is so much more pleasant to write than the manual
V3D33_whatever_pack() calls, and will be useful for when we start doing
actual per-V3D compiles.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc5/vc5_cl.h b/src/gallium/drivers/vc5/vc5_cl.h
index 4c64f084d3d..f62376e296a 100644
--- a/src/gallium/drivers/vc5/vc5_cl.h
+++ b/src/gallium/drivers/vc5/vc5_cl.h
@@ -248,6 +248,19 @@ cl_get_emit_space(struct vc5_cl_out **cl, size_t size)
         cl_advance(&(cl)->next, sizeof(*packet));                \
 } while (0)
 
+#define v3dx_pack(packed, packet, name)                          \
+        for (struct cl_packet_struct(packet) name = {            \
+                cl_packet_header(packet)                         \
+        },                                                       \
+        *_loop_terminate = &name;                                \
+        __builtin_expect(_loop_terminate != NULL, 1);            \
+        ({                                                       \
+                cl_packet_pack(packet)(NULL, (uint8_t *)packed, &name); \
+                VG(VALGRIND_CHECK_MEM_IS_DEFINED((uint8_t *)packed, \
+                                                 cl_packet_length(packet))); \
+                _loop_terminate = NULL;                          \
+        }))                                                      \
+
 /**
  * Helper function called by the XML-generated pack functions for filling in
  * an address field in shader records.