nak: Move the QMD code back into the main nak crate

I only ever pulled it out because I also pulled out the test runner.
Now that the test runner lives inside NAK, this can, too.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25167>

src/nouveau/compiler/meson.build

@@ -158,22 +158,6 @@ _libnak_ir_proc_rs = rust.proc_macro(
   dependencies : [dep_syn],
 )
 
-_libnak_qmd_rs = static_library(
-  'nak_qmd_rs',
-  files('nak_qmd/lib.rs'),
-  gnu_symbol_visibility : 'hidden',
-  rust_abi : 'c',
-  rust_args : nak_rust_args,
-  dependencies : [
-    dep_paste,
-    idep_nvidia_headers_rs,
-  ],
-  link_with: [
-    _libbitview_rs,
-    _libnak_bindings_rs,
-  ],
-)
-
 _libnak_rs = static_library(
   'nak_rs',
   files('nak/lib.rs'),
@@ -184,11 +168,14 @@ _libnak_rs = static_library(
     # Otherwise, rustc trips up on -pthread
     '-Clink-arg=-Wno-unused-command-line-argument',
   ],
-  link_with: [
+  dependencies : [
+    dep_paste,
+    idep_nvidia_headers_rs,
+  ],
+  link_with : [
     _libbitview_rs,
     _libnak_bindings_rs,
     _libnak_ir_proc_rs,
-    _libnak_qmd_rs,
   ],
 )
 
@@ -209,7 +196,6 @@ if with_tests and get_option('b_sanitize') == 'none'
       idep_nouveau_ws,
       idep_compiler.partial_dependency(link_args : true, links : true),
       idep_mesautil.partial_dependency(link_args : true, links : true),
-      idep_nvidia_headers_rs,
       idep_nv_push_rs,
     ],
     link_with: [

src/nouveau/compiler/nak/lib.rs

@@ -24,6 +24,7 @@ mod opt_lop;
 mod opt_out;
 mod opt_prmt;
 mod opt_uniform_instrs;
+mod qmd;
 mod repair_ssa;
 mod sm50;
 mod sm70;

src/nouveau/compiler/nak/qmd.rs

@@ -1,9 +1,7 @@
 // Copyright © 2024 Collabora, Ltd.
 // SPDX-License-Identifier: MIT
 
-extern crate bitview;
 extern crate nvidia_headers;
-extern crate paste;
 
 use nak_bindings::*;
 use nvidia_headers::classes::{cla0c0, clc0c0, clc3c0, clc6c0};
@@ -163,7 +161,7 @@ macro_rules! qmd_impl_set_register_count {
 }
 
 mod qmd_0_6 {
-    use crate::*;
+    use crate::qmd::*;
     use nvidia_headers::classes::cla0c0::qmd as cla0c0;
 
     #[repr(transparent)]
@@ -208,7 +206,7 @@ mod qmd_0_6 {
 use qmd_0_6::Qmd0_6;
 
 mod qmd_2_1 {
-    use crate::*;
+    use crate::qmd::*;
     use nvidia_headers::classes::clc0c0::qmd as clc0c0;
 
     #[repr(transparent)]
@@ -276,7 +274,7 @@ macro_rules! qmd_impl_set_smem_size_bounded {
 }
 
 mod qmd_2_2 {
-    use crate::*;
+    use crate::qmd::*;
     use nvidia_headers::classes::clc3c0::qmd as clc3c0;
 
     #[repr(transparent)]
@@ -304,7 +302,7 @@ mod qmd_2_2 {
 use qmd_2_2::Qmd2_2;
 
 mod qmd_3_0 {
-    use crate::*;
+    use crate::qmd::*;
     use nvidia_headers::classes::clc6c0::qmd as clc6c0;
 
     #[repr(transparent)]