Hello Nikos Nikoleris, Curtis Dunham,
I'd like you to do a code review. Please visit
https://gem5-review.googlesource.com/2966
to review the following change.
Change subject: util, arm: Support mmapped m5ops on aarch64
......................................................................
util, arm: Support mmapped m5ops on aarch64
Add support for memory-mapped m5ops in the aarch64 version of the m5
utility. To enable support for memory-mapped m5ops, compile the tool
with the define M5OP_ADDR set to the base of the m5op PA range.
Change-Id: I13e21e48536b9849bf4081411b66b2f350f7a8ac
Signed-off-by: Andreas Sandberg <[email protected]>
Reviewed-by: Curtis Dunham <[email protected]>
Reviewed-by: Nikos Nikoleris <[email protected]>
---
M util/m5/m5op_arm_A64.S
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/util/m5/m5op_arm_A64.S b/util/m5/m5op_arm_A64.S
index b69530d..f17c803 100644
--- a/util/m5/m5op_arm_A64.S
+++ b/util/m5/m5op_arm_A64.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010-2013, 2016 ARM Limited
+ * Copyright (c) 2010-2013, 2016-2017 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
@@ -45,12 +45,23 @@
#include "m5ops.h"
+#ifdef M5OP_ADDR
+.macro m5op_func, name, func, subfunc
+ .globl \name
+ \name:
+ ldr x9, m5_mem
+ movz x10, #((\func << 8) | \subfunc)
+ ldr x0, [ x9, x10 ]
+ ret
+.endm
+#else
.macro m5op_func, name, func, subfunc
.globl \name
\name:
.long 0xff000110 | (\func << 16) | (\subfunc << 12)
ret
.endm
+#endif
.text
#define M5OP(name, func, subfunc) m5op_func name, func, subfunc
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I13e21e48536b9849bf4081411b66b2f350f7a8ac
Gerrit-Change-Number: 2966
Gerrit-PatchSet: 1
Gerrit-Owner: Andreas Sandberg <[email protected]>
Gerrit-Reviewer: Curtis Dunham <[email protected]>
Gerrit-Reviewer: Nikos Nikoleris <[email protected]>
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