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Author SHA1 Message Date
Mark Janes
1f725a222a intel/dev: implement json serialization for intel_device_info
Generate intel_device_serialize.c from a mako template, providing
functions to dump and parse intel_device_info.

intel_device_info.py declares python objects representing all type
declarations associated with intel_device_info.  It is used as a data
source for intel_device_serialize_c.py

intel_device_serialize_c.py emits a c++ file with routines to dump
or load all struct members to/from json.  The json format is a direct
translation of the c structure, with 2 exceptions:

 - When parsing json, the no_hw member is always set to true to
   indicate that the driver's intel_device_info does not correspond to
   the current platform.

 - When dumping to json, devinfo_type_sha1 is calculated to be a
   checksum which changes whenever intel_device_info is updated.  This
   checksum is encoded in json.  When parsing json, the driver verifies
   that the checksum matches before loading data into
   intel_device_info.  This verifies compatibility.

Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27557>
2024-02-13 19:38:36 +00:00