panfrost: Implement Midgard shader toolchain

This patch implements the free Midgard shader toolchain: the assembler,
the disassembler, and the NIR-based compiler. The assembler is a
standalone inaccessible Python script for reference purposes. The
disassembler and the compiler are implemented in C, accessible via the
standalone `midgard_compiler` binary. Later patches will use these
interfaces from the driver for online compilation.

Signed-off-by: Alyssa Rosenzweig <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>
Acked-by: Rob Clark <[email protected]>
Acked-by: Eric Anholt <[email protected]>
Acked-by: Emil Velikov <[email protected]>

1 files changed, 42 insertions, 2 deletions

diff --git a/src/gallium/drivers/panfrost/meson.build b/src/gallium/drivers/panfrost/meson.build
index fdf66c02138..f4dec42ad3e 100644
--- a/src/gallium/drivers/panfrost/meson.build
+++ b/src/gallium/drivers/panfrost/meson.build
@@ -23,6 +23,10 @@ files_panfrost = files(
   'pan_public.h',
   'pan_screen.c',
   'pan_screen.h',
+
+  'midgard/midgard_compile.c',
+  'midgard/cppwrap.cpp',
+  'midgard/disassemble.c',
 )
 
 inc_panfrost = [
@@ -32,12 +36,25 @@ inc_panfrost = [
   inc_drm_uapi,
   inc_include,
   inc_src,
-  include_directories('include')
+  include_directories('include'),
+  include_directories('midgard'),
 ]
 
+midgard_nir_algebraic_c = custom_target(
+  'midgard_nir_algebraic.c',
+  input : 'midgard/midgard_nir_algebraic.py',
+  output : 'midgard_nir_algebraic.c',
+  command : [
+    prog_python, '@INPUT@',
+    '-p', join_paths(meson.source_root(), 'src/compiler/nir/'),
+  ],
+  capture : true,
+  depend_files : nir_algebraic_py,
+)
+
 libpanfrost = static_library(
   'panfrost',
-  [files_panfrost],
+  [files_panfrost, midgard_nir_algebraic_c],
   dependencies: [
     dep_thread,
     idep_nir
@@ -50,3 +67,26 @@ driver_panfrost = declare_dependency(
   compile_args : ['-DGALLIUM_PANFROST', '-Wno-pointer-arith'],
   link_with : [libpanfrost, libpanfrostwinsys],
 )
+
+files_midgard = files(
+  'midgard/midgard_compile.c',
+  'midgard/cppwrap.cpp',
+  'midgard/disassemble.c',
+  'midgard/cmdline.c',
+)
+
+midgard_compiler = executable(
+  'midgard_compiler',
+  [files_midgard, midgard_nir_algebraic_c],
+  include_directories : inc_panfrost,
+  dependencies : [
+    dep_thread,
+    idep_nir
+  ],
+  link_with : [
+    libgallium,
+    libglsl_standalone,
+    libmesa_util
+  ],
+  build_by_default : true
+)