intel/tools: add shader compiler hash key to json devinfo format

Offline shader compilation will use json as the source configuration
to accurately instantiate mesa for target hardware.  Similar platforms
generate identical shader binaries even though intel_device_info
differs inconsequenially.

Include the shader compilation hash key to device info json files, so
these platforms can be deduplicated.

Closes: #6746

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26844>

src/intel/tools/intel_dev_info.c

@@ -38,6 +38,7 @@
 #include "dev/intel_device_info.h"
 #include "dev/intel_device_info_serialize.h"
 #include "dev/intel_hwconfig.h"
+#include "compiler/brw_compiler.h"
 
 static int
 error(char *fmt, ...)
@@ -260,6 +261,15 @@ main(int argc, char *argv[])
 
          if (print_json) {
             JSON_Value *json = intel_device_info_dump_json(&devinfo);
+
+            /* add the compiler device sha, to allow deduplication of similar
+             * device info files
+             */
+            JSON_Object *obj = json_object(json);
+            char device_info_sha[41];
+            brw_device_sha1(device_info_sha, &devinfo);
+            json_object_set_string(obj, "shader_cache_sha1", device_info_sha);
+
             char *pretty_string = json_serialize_to_string_pretty(json);
             printf("%s", pretty_string);
             json_free_serialized_string(pretty_string);

src/intel/tools/meson.build

@@ -185,7 +185,8 @@ if with_intel_tools
   intel_dev_info = executable(
     'intel_dev_info',
     [files('intel_dev_info.c'), [intel_dev_serialize_src]],
-    dependencies : [dep_libdrm, dep_dl, dep_thread, dep_m, idep_intel_dev, idep_parson],
+    dependencies : [dep_libdrm, dep_dl, dep_thread, dep_m, idep_intel_dev, idep_parson, idep_nir],
+    link_with : [libintel_compiler],
     include_directories : [inc_include, inc_src, inc_intel],
     c_args : [no_override_init_args],
     gnu_symbol_visibility : 'hidden',