From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 21 Dec 2021 05:07:37 +0000 (+0000)
Subject: comments
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a676c4d25fe9e37a6e2383c3a39b19cfc6aa39e3;p=soc.git

comments
---

diff --git a/src/soc/experiment/mmu.py b/src/soc/experiment/mmu.py
index e9599948..01eb61d3 100644
--- a/src/soc/experiment/mmu.py
+++ b/src/soc/experiment/mmu.py
@@ -376,6 +376,9 @@ class MMU(Elaboratable):
                 sync += Display("MMUBUG: non-present PTE, generate a DSI")
 
     def segment_check(self, m, v, r, data, finalmask):
+        """segment_check: checks validity of the request before doing a
+        RADIX lookup. reports either segment error or bad tree if not ok
+        """
         comb = m.d.comb
 
         mbits = Signal(6)