rename store conditional stuff as extra data so it can be used for conditional swaps as well

Add support for a twin 64 bit int load
Add Memory barrier and write barrier flags as appropriate
Make atomic memory ops atomic

src/arch/alpha/isa/mem.isa:
src/arch/alpha/locked_mem.hh:
src/cpu/base_dyn_inst.hh:
src/mem/cache/cache_blk.hh:
src/mem/cache/cache_impl.hh:
    rename store conditional stuff as extra data so it can be used for conditional swaps as well
src/arch/alpha/types.hh:
src/arch/mips/types.hh:
src/arch/sparc/types.hh:
    add a largest read data type for statically allocating read buffers in atomic simple cpu
src/arch/isa_parser.py:
    Add support for a twin 64 bit int load
src/arch/sparc/isa/decoder.isa:
    Make atomic memory ops atomic
    Add Memory barrier and write barrier flags as appropriate
src/arch/sparc/isa/formats/mem/basicmem.isa:
    add post access code block and define a twinload format for twin loads
src/arch/sparc/isa/formats/mem/blockmem.isa:
    remove old microcoded twin load coad
src/arch/sparc/isa/formats/mem/mem.isa:
    swap.isa replaces the code in loadstore.isa
src/arch/sparc/isa/formats/mem/util.isa:
    add a post access code block
src/arch/sparc/isa/includes.isa:
    need bigint.hh for Twin64_t
src/arch/sparc/isa/operands.isa:
    add a twin 64 int type
src/cpu/simple/atomic.cc:
src/cpu/simple/atomic.hh:
src/cpu/simple/base.hh:
src/cpu/simple/timing.cc:
    add support for twinloads
    add support for swap and conditional swap instructions
    rename store conditional stuff as extra data so it can be used for conditional swaps as well
src/mem/packet.cc:
src/mem/packet.hh:
    Add support for atomic swap memory commands
src/mem/packet_access.hh:
    Add endian conversion function for Twin64_t type
src/mem/physical.cc:
src/mem/physical.hh:
src/mem/request.hh:
    Add support for atomic swap memory commands
    Rename sc code to extradata

--HG--
extra : convert_revision : 69d908512fb34a4e28b29a6e58b807fb1a6b1656

1 files changed, 17 insertions, 1 deletions

diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index e4748c966..ff3606a74 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -30,6 +30,7 @@
 
 #include "arch/locked_mem.hh"
 #include "arch/utility.hh"
+#include "base/bigint.hh"
 #include "cpu/exetrace.hh"
 #include "cpu/simple/timing.hh"
 #include "mem/packet.hh"
@@ -312,6 +313,10 @@ TimingSimpleCPU::read(Addr addr, T &data, unsigned flags)
 
 template
 Fault
+TimingSimpleCPU::read(Addr addr, Twin64_t &data, unsigned flags);
+
+template
+Fault
 TimingSimpleCPU::read(Addr addr, uint64_t &data, unsigned flags);
 
 template
@@ -359,13 +364,20 @@ TimingSimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res)
         new Request(/* asid */ 0, addr, sizeof(T), flags, thread->readPC(),
                     cpu_id, /* thread ID */ 0);
 
+    if (traceData) {
+        traceData->setAddr(req->getVaddr());
+    }
+
     // translate to physical address
     Fault fault = thread->translateDataWriteReq(req);
 
     // Now do the access.
     if (fault == NoFault) {
         assert(dcache_pkt == NULL);
-        dcache_pkt = new Packet(req, MemCmd::WriteReq, Packet::Broadcast);
+        if (req->isSwap())
+            dcache_pkt = new Packet(req, MemCmd::SwapReq, Packet::Broadcast);
+        else
+            dcache_pkt = new Packet(req, MemCmd::WriteReq, Packet::Broadcast);
         dcache_pkt->allocate();
         dcache_pkt->set(data);
 
@@ -374,6 +386,10 @@ TimingSimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res)
         if (req->isLocked()) {
             do_access = TheISA::handleLockedWrite(thread, req);
         }
+        if (req->isCondSwap()) {
+             assert(res);
+             req->setExtraData(*res);
+        }
 
         if (do_access) {
             if (!dcachePort.sendTiming(dcache_pkt)) {