def transform_fragment(self, f): newspecials = set() for orig in f.specials: if not isinstance(orig, Memory): newspecials.add(orig) continue global_granularity = gcd_multiple([p.we_granularity if p.we_granularity else orig.width for p in orig.ports]) if global_granularity == orig.width: newspecials.add(orig) # nothing to do else: for i in range(orig.width//global_granularity): if orig.init is None: newinit = None else: newinit = [(v >> i*global_granularity) & (2**global_granularity - 1) for v in orig.init] newmem = Memory(global_granularity, orig.depth, newinit, orig.name_override + "_grain" + str(i)) newspecials.add(newmem) for port in orig.ports: port_granularity = port.we_granularity if port.we_granularity else orig.width newport = _MemoryPort(adr=port.adr, dat_r=port.dat_r[i*global_granularity:(i+1)*global_granularity] if port.dat_r is not None else None, we=port.we[i*global_granularity//port_granularity] if port.we is not None else None, dat_w=port.dat_w[i*global_granularity:(i+1)*global_granularity] if port.dat_w is not None else None, async_read=port.async_read, re=port.re, we_granularity=0, mode=port.mode, clock_domain=port.clock) newmem.ports.append(newport) newspecials.add(newport) f.specials = newspecials
def transform_fragment(self, i, f):
newspecials = set()
for orig in sorted(f.specials, key=lambda x: x.duid):
if not isinstance(orig, Memory):
newspecials.add(orig)
continue
global_granularity = gcd_multiple([
p.we_granularity if p.we_granularity else orig.width
for p in orig.ports
])
if global_granularity == orig.width:
newspecials.add(orig) # nothing to do
else:
newmems = []
for i in range(orig.width // global_granularity):
if orig.init is None:
newinit = None
else:
newinit = [(v >> i * global_granularity) &
(2**global_granularity - 1)
for v in orig.init]
newmem = Memory(global_granularity, orig.depth, newinit,
orig.name_override + "_grain" + str(i))
newspecials.add(newmem)
newmems.append(newmem)
for port in orig.ports:
port_granularity = port.we_granularity if port.we_granularity else orig.width
newport = _MemoryPort(
adr=port.adr,
dat_r=port.dat_r[i * global_granularity:(i + 1) *
global_granularity]
if port.dat_r is not None else None,
we=port.we[i * global_granularity //
port_granularity]
if port.we is not None else None,
dat_w=port.dat_w[i * global_granularity:(i + 1) *
global_granularity]
if port.dat_w is not None else None,
async_read=port.async_read,
re=port.re,
we_granularity=0,
mode=port.mode,
clock_domain=port.clock.cd)
newmem.ports.append(newport)
newspecials.add(newport)
self.replacements[orig] = newmems
f.specials = newspecials
for oldmem in self.replacements.keys():
f.specials -= set(oldmem.ports)