asahi: Deserialize libagx when opening device

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25498>

src/asahi/lib/agx_device.c

@@ -7,15 +7,21 @@
 #include "agx_device.h"
 #include <inttypes.h>
 #include "agx_bo.h"
+#include "agx_compile.h"
 #include "decode.h"
+#include "glsl_types.h"
+#include "libagx_shaders.h"
 
 #include <fcntl.h>
 #include <xf86drm.h>
 #include "drm-uapi/dma-buf.h"
+#include "util/blob.h"
 #include "util/log.h"
 #include "util/os_file.h"
 #include "util/os_mman.h"
 #include "util/simple_mtx.h"
+#include "git_sha1.h"
+#include "nir_serialize.h"
 
 /* TODO: Linux UAPI. Dummy defines to get some things to compile. */
 #define ASAHI_BIND_READ  0
@@ -334,6 +340,12 @@ agx_open_device(void *memctx, struct agx_device *dev)
    dev->queue_id = agx_create_command_queue(dev, 0 /* TODO: CAPS */);
    agx_get_global_ids(dev);
 
+   glsl_type_singleton_init_or_ref();
+   struct blob_reader blob;
+   blob_reader_init(&blob, (void *)libagx_shaders_nir,
+                    sizeof(libagx_shaders_nir));
+   dev->libagx = nir_deserialize(memctx, &agx_nir_options, &blob);
+
    return true;
 }
 

src/asahi/lib/agx_device.h

@@ -61,9 +61,15 @@ struct drm_asahi_params_global {
 /* Fencepost problem, hence the off-by-one */
 #define NR_BO_CACHE_BUCKETS (MAX_BO_CACHE_BUCKET - MIN_BO_CACHE_BUCKET + 1)
 
+/* Forward decl only, do not pull in all of NIR */
+struct nir_shader;
+
 struct agx_device {
    uint32_t debug;
 
+   /* NIR library of AGX helpers/shaders. Immutable once created. */
+   const struct nir_shader *libagx;
+
    char name[64];
    struct drm_asahi_params_global params;
    uint64_t next_global_id, last_global_id;

src/gallium/drivers/asahi/meson.build

@@ -18,11 +18,11 @@ files_asahi = files(
 
 libasahi = static_library(
   'asahi',
-  files_asahi,
+  [files_asahi],
   include_directories : [inc_gallium_aux, inc_gallium, inc_include, inc_src],
   c_args : [c_msvc_compat_args],
   gnu_symbol_visibility : 'hidden',
-  dependencies : [idep_nir, idep_mesautil, idep_agx_pack, dep_libdrm],
+  dependencies : [idep_nir, idep_mesautil, idep_agx_pack, dep_libdrm, idep_mesaclc],
 )
 
 driver_asahi = declare_dependency(