From dcf82a0c7b6a56c2a557b1c69712b203f3c19447 Mon Sep 17 00:00:00 2001
From: auphelia <jakobapk@web.de>
Date: Thu, 26 Jan 2023 15:23:28 +0000
Subject: [PATCH] [Transform] Add defaults, docstring and comments to split
large fifos
---
src/finn/transformation/fpgadataflow/set_fifo_depths.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/finn/transformation/fpgadataflow/set_fifo_depths.py b/src/finn/transformation/fpgadataflow/set_fifo_depths.py
index 8699cd700..9ac100046 100644
--- a/src/finn/transformation/fpgadataflow/set_fifo_depths.py
+++ b/src/finn/transformation/fpgadataflow/set_fifo_depths.py
@@ -451,7 +451,9 @@ class InsertAndSetFIFODepths(Transformation):
return (model, False)
-def get_fifo_split_configs(depth, max_qsrl_depth, max_vivado_depth):
+def get_fifo_split_configs(depth, max_qsrl_depth=256, max_vivado_depth=32768):
+ """Break non-power-of-2 sized FIFO depths into several ones"""
+
def floor_pow2(x):
if (x & (x - 1) == 0) and x != 0:
return x
@@ -486,6 +488,7 @@ def get_fifo_split_configs(depth, max_qsrl_depth, max_vivado_depth):
# into several ones
ret_pass2 = list(map(decompose_pow2, ret))
+ # unpack list of lists
ret_pass2 = [x for dec_list in ret_pass2 for x in dec_list]
# finally, add impl_style to each split FIFO
--
GitLab