From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 4 Dec 2021 04:06:53 +0000 (+0000)
Subject: not busy if excrption occurs on MMU_LOOKUP in loadstore.py
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6fb8fff9ea5b50549b4c9e73f6f9e76cd10f7103;p=soc.git

not busy if excrption occurs on MMU_LOOKUP in loadstore.py
---

diff --git a/src/soc/fu/ldst/loadstore.py b/src/soc/fu/ldst/loadstore.py
index 8aa67ac1..2a09bb24 100644
--- a/src/soc/fu/ldst/loadstore.py
+++ b/src/soc/fu/ldst/loadstore.py
@@ -249,7 +249,7 @@ class LoadStore1(PortInterfaceBase):
             # waiting here for the MMU TLB lookup to complete.
             # either re-try the dcache lookup or throw MMU exception
             with m.Case(State.MMU_LOOKUP):
-                comb += self.busy.eq(1)
+                comb += self.busy.eq(~exception)
                 with m.If(m_in.done):
                     with m.If(~self.instr_fault):
                         sync += Display("MMU_LOOKUP, done %x -> %x",