mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-18 09:53:04 +00:00
137 lines
3.8 KiB
Python
137 lines
3.8 KiB
Python
import sys, re, json
|
|
from xml.etree import ElementTree
|
|
|
|
def insert_n(s, nb):
|
|
sout = ""
|
|
def sub(g):
|
|
if g.group(2):
|
|
a, b = int(g.group(1)), int(g.group(2)[1:])
|
|
return nb[-a - 1:-b or None]
|
|
else:
|
|
a = int(g.group(1))
|
|
return nb[-a - 1]
|
|
|
|
s = re.sub(r'n\[(\d+)(:\d+)?\]', sub, s)
|
|
s = "".join(s.split(":"))
|
|
return int(s.replace("0b", ""), 2)
|
|
|
|
def parse_one(regs, xml):
|
|
t = ElementTree.parse(xml)
|
|
|
|
for reg in t.findall('registers/register'):
|
|
data = {}
|
|
|
|
name = reg.find('reg_short_name').text
|
|
fullname = reg.find('reg_long_name').text
|
|
|
|
if name.startswith("S3_") or name.startswith("SYS S1_"):
|
|
continue
|
|
|
|
array = reg.find('reg_array')
|
|
|
|
start = end = 0
|
|
|
|
if array:
|
|
start = int(array.find("reg_array_start").text)
|
|
end = int(array.find("reg_array_end").text)
|
|
|
|
encs = {}
|
|
accessors = {}
|
|
|
|
for am in reg.findall('access_mechanisms/access_mechanism'):
|
|
accessor = am.attrib["accessor"]
|
|
if accessor.startswith("MSRimmediate"):
|
|
continue
|
|
ins = am.find("encoding/access_instruction").text.split(" ")[0]
|
|
regname = accessor.split(" ", 1)[1]
|
|
enc = {}
|
|
for e in am.findall("encoding/enc"):
|
|
enc[e.attrib["n"]] = e.attrib["v"]
|
|
|
|
enc = enc["op0"], enc["op1"], enc["CRn"], enc["CRm"], enc["op2"]
|
|
if regname in encs:
|
|
assert encs[regname] == enc
|
|
encs[regname] = enc
|
|
accessors.setdefault(regname, set()).add(ins)
|
|
|
|
if not encs:
|
|
continue
|
|
|
|
fieldsets = []
|
|
|
|
width = None
|
|
|
|
for fields_elem in reg.findall('reg_fieldsets/fields'):
|
|
|
|
fieldset = {}
|
|
|
|
if (instance_elem := fields_elem.find('fields_instance')) is not None:
|
|
fieldset["instance"] = instance_elem.text
|
|
|
|
fields = []
|
|
|
|
set_width = int(fields_elem.attrib["length"])
|
|
|
|
if width is None:
|
|
width = set_width
|
|
else:
|
|
assert width == set_width
|
|
|
|
single_field = False
|
|
|
|
for f in fields_elem.findall('field'):
|
|
|
|
if f.attrib.get("rwtype", None) in ("RES0", "RES1", "RAZ", "RAZ/WI", "RAO/WI", "UNKNOWN"):
|
|
continue
|
|
msb, lsb = int(f.find('field_msb').text), int(f.find('field_lsb').text)
|
|
|
|
assert not single_field
|
|
|
|
if msb == width - 1 and lsb == 0:
|
|
continue
|
|
|
|
if (name_elem := f.find('field_name')) is not None:
|
|
name = name_elem.text
|
|
else:
|
|
assert not fields
|
|
continue
|
|
|
|
field = {
|
|
"name": name,
|
|
"msb": msb,
|
|
"lsb": lsb,
|
|
}
|
|
fields.append(field)
|
|
|
|
fields.sort(key=lambda x: x["lsb"], reverse=True)
|
|
|
|
fieldset["fields"] = fields
|
|
fieldsets.append(fieldset)
|
|
|
|
for idx, n in enumerate(range(start, end + 1)):
|
|
nb = "{0:064b}".format(n)[::-1]
|
|
for name, enc in sorted(encs.items()):
|
|
enc = tuple(insert_n(i, nb) for i in enc)
|
|
data = {
|
|
"index": idx,
|
|
"name": name.replace("<n>", "%d" % n),
|
|
"fullname": fullname,
|
|
"enc": enc,
|
|
"accessors": sorted(list(accessors[name])),
|
|
"fieldsets": fieldsets,
|
|
}
|
|
|
|
if width is not None:
|
|
data["width"] = width
|
|
|
|
yield data
|
|
|
|
if __name__ == "__main__":
|
|
regs = []
|
|
for i in sys.argv[1:]:
|
|
regs.extend(parse_one(regs, i))
|
|
|
|
json.dump(regs, sys.stdout)
|
|
|
|
|
|
|