agx: Generate enums from Python

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11199>

src/asahi/compiler/agx_opcodes.py

@@ -23,6 +23,7 @@ SOFTWARE.
 
 opcodes = {}
 immediates = {}
+enums = {}
 
 class Opcode(object):
    def __init__(self, name, dests, srcs, imms, is_float, can_eliminate, encoding_16, encoding_32):
@@ -67,6 +68,10 @@ def immediate(name, ctype = "uint32_t"):
    immediates[name] = imm
    return imm
 
+def enum(name, value_dict):
+   enums[name] = value_dict
+   return immediate(name, "enum agx_" + name)
+
 L = (1 << 15)
 _ = None