It could be confusing that a newer platform named with a smaller
number than a half-generation of an older platform like 'gfx20' and
'gfx75' in xml files.
Down the road, it can be a little worse once we pass something like
'gfx40' when there is already a gfx45.xml for the oldest platform.
Unify naming xml files with verx10 numbers to resolve the issue.
Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31943>
I've had people ask about the design of the pack functions, for example,
why aren't we using bitfields. I wrote up a bit of background on why and
how we ended up with the current design and we might as well keep that
with the code.
