From: Jacob Lifshay <programmerjake@gmail.com>
Date: Mon, 4 Dec 2023 08:19:31 +0000 (-0800)
Subject: ISACaller: add PowerISA spec. reference for real_page_size
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0a16a9f58ef519a1d332931b302601e2bac87b05;p=openpower-isa.git

ISACaller: add PowerISA spec. reference for real_page_size
---

diff --git a/src/openpower/decoder/isa/caller.py b/src/openpower/decoder/isa/caller.py
index e500f8a3..fd0a60fe 100644
--- a/src/openpower/decoder/isa/caller.py
+++ b/src/openpower/decoder/isa/caller.py
@@ -1461,7 +1461,9 @@ class ISACaller(ISACallerHelper, ISAFPHelpers, StepLoop):
 
         # for LR/SC
         if real_page_size is None:
-            real_page_size = 4096
+            # PowerISA v3.1B Book III Section 6.7 page 1191 (1217)
+            # defines real page size as 2 ** 12 bytes (4KiB)
+            real_page_size = 2 ** 12
         self.real_page_size = real_page_size
         self.reserve_addr = SelectableInt(0, self.XLEN)
         self.reserve = SelectableInt(0, 1)