mem: Add PortProxy read/write helper with explicit endianness
Change-Id: Ia9a11ca68b2892dafd02f2c37324b99b35c77d34
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jack Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/8146
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
diff --git a/src/mem/port_proxy.hh b/src/mem/port_proxy.hh
index e9ddeec..ac1873b 100644
--- a/src/mem/port_proxy.hh
+++ b/src/mem/port_proxy.hh
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011-2013 ARM Limited
+ * Copyright (c) 2011-2013, 2018 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
@@ -123,6 +123,20 @@
template <typename T>
void write(Addr address, T data) const;
+ /**
+ * Read sizeof(T) bytes from address and return as object T.
+ * Performs selected endianness transform.
+ */
+ template <typename T>
+ T readGtoH(Addr address, ByteOrder guest_byte_order) const;
+
+ /**
+ * Write object T to address. Writes sizeof(T) bytes.
+ * Performs selected endianness transform.
+ */
+ template <typename T>
+ void writeHtoG(Addr address, T data, ByteOrder guest_byte_order) const;
+
#if THE_ISA != NULL_ISA
/**
* Read sizeof(T) bytes from address and return as object T.
@@ -157,6 +171,23 @@
writeBlob(address, (uint8_t*)&data, sizeof(T));
}
+template <typename T>
+T
+PortProxy::readGtoH(Addr address, ByteOrder byte_order) const
+{
+ T data;
+ readBlob(address, (uint8_t*)&data, sizeof(T));
+ return gtoh(data, byte_order);
+}
+
+template <typename T>
+void
+PortProxy::writeHtoG(Addr address, T data, ByteOrder byte_order) const
+{
+ data = htog(data, byte_order);
+ writeBlob(address, (uint8_t*)&data, sizeof(T));
+}
+
#if THE_ISA != NULL_ISA
template <typename T>
T
