bslathi19/PeakRDL-regblock
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Add 'rd_swacc' and 'wr_swacc' UDPs. #21

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This commit is contained in:
Alex Mykyta
2022-11-09 21:22:59 -08:00
parent 17afaf13ff
commit 489b4d1310
17 changed files with 243 additions and 12 deletions
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24
src/peakrdl_regblock/field_logic/__init__.py
View File

@@ -193,6 +193,30 @@ class FieldLogic:
strb = self.exp.dereferencer.get_access_strobe(field)
return strb
def get_rd_swacc_identifier(self, field: 'FieldNode') -> str:
"""
Asserted when field is software accessed (read)
"""
buffer_reads = field.parent.get_property('buffer_reads')
if buffer_reads:
rstrb = self.exp.read_buffering.get_trigger(field.parent)
return rstrb
else:
strb = self.exp.dereferencer.get_access_strobe(field)
return f"{strb} && !decoded_req_is_wr"
def get_wr_swacc_identifier(self, field: 'FieldNode') -> str:
"""
Asserted when field is software accessed (write)
"""
buffer_writes = field.parent.get_property('buffer_writes')
if buffer_writes:
wstrb = self.exp.write_buffering.get_write_strobe(field)
return wstrb
else:
strb = self.exp.dereferencer.get_access_strobe(field)
return f"{strb} && decoded_req_is_wr"
def get_swmod_identifier(self, field: 'FieldNode') -> str:
"""
Asserted when field is modified by software (written or read with a

16
src/peakrdl_regblock/field_logic/generators.py
View File

@@ -224,20 +224,33 @@ class FieldLogicGenerator(RDLForLoopGenerator):
f"assign {output_identifier} = {value};"
)
# Software access strobes
if node.get_property('swmod'):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "swmod")
value = self.field_logic.get_swmod_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property('swacc'):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "swacc")
value = self.field_logic.get_swacc_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property('rd_swacc'):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "rd_swacc")
value = self.field_logic.get_rd_swacc_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property('wr_swacc'):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "wr_swacc")
value = self.field_logic.get_wr_swacc_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)
# Counter thresholds
if node.get_property('incrthreshold') is not False: # (explicitly not False. Not 0)
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "incrthreshold")
value = self.field_logic.get_field_combo_identifier(node, 'incrthreshold')
@@ -251,6 +264,7 @@ class FieldLogicGenerator(RDLForLoopGenerator):
f"assign {output_identifier} = {value};"
)
# Counter events
if node.get_property('overflow'):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "overflow")
value = self.field_logic.get_field_combo_identifier(node, 'overflow')