[m5-dev] changeset in m5: ARM: Add support for some more registers in the...

[Ali Saidi]

changeset a8c4b7a24d62 in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=a8c4b7a24d62
description:
        ARM: Add support for some more registers in the real view controller.

diffstat:

 src/dev/arm/rv_ctrl.cc |  10 +++++++++-
 src/dev/arm/rv_ctrl.hh |   7 +++++++
 2 files changed, 16 insertions(+), 1 deletions(-)

diffs (63 lines):

diff -r 5dddde1126c2 -r a8c4b7a24d62 src/dev/arm/rv_ctrl.cc
--- a/src/dev/arm/rv_ctrl.cc    Wed May 04 20:38:27 2011 -0500
+++ b/src/dev/arm/rv_ctrl.cc    Wed May 04 20:38:27 2011 -0500
@@ -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 @@
       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 @@
       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 @@
 void
 RealViewCtrl::serialize(std::ostream &os)
 {
+    SERIALIZE_SCALAR(flags);
 }
 
 void
 RealViewCtrl::unserialize(Checkpoint *cp, const std::string &section)
 {
+    UNSERIALIZE_SCALAR(flags);
 }
 
 RealViewCtrl *
diff -r 5dddde1126c2 -r a8c4b7a24d62 src/dev/arm/rv_ctrl.hh
--- a/src/dev/arm/rv_ctrl.hh    Wed May 04 20:38:27 2011 -0500
+++ b/src/dev/arm/rv_ctrl.hh    Wed May 04 20:38:27 2011 -0500
@@ -95,6 +95,13 @@
 
     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 *
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