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authorAli Saidi <Ali.Saidi@ARM.com>2011-05-04 20:38:27 -0500
committerAli Saidi <Ali.Saidi@ARM.com>2011-05-04 20:38:27 -0500
commitafd08879d726dbbefa3ff6018088cd6d89b53bbb (patch)
treef77a8147770c772ce05933f9b96a615049a70263
parentf7380052669eb7030e73d4799fb448ffc8e78680 (diff)
downloadgem5-afd08879d726dbbefa3ff6018088cd6d89b53bbb.tar.xz
ARM: Add support for some more registers in the real view controller.
-rw-r--r--src/dev/arm/rv_ctrl.cc10
-rw-r--r--src/dev/arm/rv_ctrl.hh7
2 files changed, 16 insertions, 1 deletions
diff --git a/src/dev/arm/rv_ctrl.cc b/src/dev/arm/rv_ctrl.cc
index f9cdbe8a1..e24fea737 100644
--- a/src/dev/arm/rv_ctrl.cc
+++ b/src/dev/arm/rv_ctrl.cc
@@ -43,7 +43,7 @@
#include "mem/packet_access.hh"
RealViewCtrl::RealViewCtrl(Params *p)
- : BasicPioDevice(p)
+ : BasicPioDevice(p), flags(0)
{
pioSize = 0xD4;
}
@@ -94,6 +94,9 @@ RealViewCtrl::read(PacketPtr pkt)
case Lock:
pkt->set<uint32_t>(sysLock);
break;
+ case Flags:
+ pkt->set<uint32_t>(flags);
+ break;
default:
panic("Tried to read RealView I/O at offset %#x that doesn't exist\n", daddr);
break;
@@ -121,6 +124,9 @@ RealViewCtrl::write(PacketPtr pkt)
case Lock:
sysLock.lockVal = pkt->get<uint16_t>();
break;
+ case Flags:
+ flags = pkt->get<uint32_t>();
+ break;
default:
panic("Tried to write RVIO at offset %#x that doesn't exist\n", daddr);
break;
@@ -132,11 +138,13 @@ RealViewCtrl::write(PacketPtr pkt)
void
RealViewCtrl::serialize(std::ostream &os)
{
+ SERIALIZE_SCALAR(flags);
}
void
RealViewCtrl::unserialize(Checkpoint *cp, const std::string &section)
{
+ UNSERIALIZE_SCALAR(flags);
}
RealViewCtrl *
diff --git a/src/dev/arm/rv_ctrl.hh b/src/dev/arm/rv_ctrl.hh
index ceed5ef2f..255b21c0f 100644
--- a/src/dev/arm/rv_ctrl.hh
+++ b/src/dev/arm/rv_ctrl.hh
@@ -95,6 +95,13 @@ class RealViewCtrl : public BasicPioDevice
SysLockReg sysLock;
+ /** This register is used for smp booting.
+ * The primary cpu writes the secondary start address here before
+ * sends it a soft interrupt. The secondary cpu reads this register and if
+ * it's non-zero it jumps to the address
+ */
+ uint32_t flags;
+
public:
typedef RealViewCtrlParams Params;
const Params *