more change for PMC

[IRC.git] / Robust / src / Runtime / bamboo / pmc_garbage.c

diff --git a/Robust/src/Runtime/bamboo/pmc_garbage.c b/Robust/src/Runtime/bamboo/pmc_garbage.c
index a9bfd4828bebd1c8866e6896f3d1417fd938a00a..915471462754a25c5a30b4e4cef61c64b5cc1ed3 100644 (file)
--- a/Robust/src/Runtime/bamboo/pmc_garbage.c
+++ b/Robust/src/Runtime/bamboo/pmc_garbage.c
@@ -1,2 +1,158 @@
+#include "multicoregc.h"
+#include "multicoreruntime.h"
 #include "pmc_garbage.h"
+#include "runtime_arch.h"
+#include "pmc_mark.h"
+#include "pmc_forward.h"
+#include "pmc_refupdate.h"
 
+struct pmc_heap * pmc_heapptr;
+struct pmc_queue * pmc_localqueue;
+volatile bool gcflag;
+
+void incrementthreads() {
+  tmc_spin_mutex_lock(&pmc_heapptr->lock);
+  pmc_heapptr->numthreads++;
+  tmc_spin_mutex_unlock(&pmc_heapptr->lock);
+}
+
+void decrementthreads() {
+  tmc_spin_mutex_lock(&pmc_heapptr->lock);
+  pmc_heapptr->numthreads--;
+  tmc_spin_mutex_unlock(&pmc_heapptr->lock);
+}
+
+void * pmc_unitend(unsigned int index) {
+  return gcbaseva+(index+1)*UNITSIZE;
+}
+
+void pmc_onceInit() {
+  pmc_localqueue=&pmc_heapptr->regions[BAMBOO_NUM_OF_CORE].markqueue;
+  pmc_queueinit(pmc_localqueue);
+  if (BAMBOO_NUM_OF_CORE==STARTUPCORE) {
+    tmc_spin_barrier_init(&pmc_heapptr->barrier, NUMCORES4GC);
+    for(int i=0;i<NUMPMCUNITS;i++) {
+      pmc_heapptr->units[i].endptr=pmc_unitend(i);
+      tprintf("%u endptr=%x\n", i, pmc_heapptr->units[i].endptr);
+    }
+    
+    for(int i=0;i<NUMCORES4GC;i+=2) {
+      if (i==0) {
+       pmc_heapptr->regions[i].lastptr=gcbaseva;
+      } else
+       pmc_heapptr->regions[i].lastptr=pmc_heapptr->units[i*4-1].endptr;
+      pmc_heapptr->regions[i].lowunit=4*i;
+      pmc_heapptr->regions[i].highunit=4*(i+1);
+      pmc_heapptr->regions[i+1].lastptr=pmc_heapptr->units[(i+1)*4+3].endptr;
+      pmc_heapptr->regions[i+1].lowunit=4*(i+1);
+      pmc_heapptr->regions[i+1].highunit=4*(i+2);
+    }
+    for(int i=0;i<NUMCORES4GC;i++) {
+      tprintf("%u lastptr=%x\n", i, pmc_heapptr->regions[i].lastptr);
+    }
+  }
+}
+
+void pmc_init() {
+  if (BAMBOO_NUM_OF_CORE==STARTUPCORE) {
+    pmc_heapptr->numthreads=NUMCORES4GC;
+    for(int i=0;i<NUMCORES4GC;i+=2) {
+      void *startptr=pmc_heapptr->regions[i].lastptr;
+      void *finishptr=pmc_heapptr->regions[i+1].lastptr;
+      struct pmc_region *region=&pmc_heapptr->regions[i];
+      unsigned int startindex=region->lowunit;
+      unsigned int endindex=pmc_heapptr->regions[i+1].highunit;
+      tprintf("Free space in partition %u from %x to %x\n", i, startptr, finishptr);
+      for(unsigned int index=startindex;index<endindex;index++) {
+       void *ptr=pmc_heapptr->units[index].endptr;
+       if ((ptr>startptr)&&(ptr<=finishptr)) {
+         padspace(startptr, (unsigned int)(ptr-startptr));
+         startptr=ptr;
+       }
+       if (ptr>finishptr) {
+         padspace(startptr, (unsigned int) (finishptr-startptr));
+         break;
+       }
+      }
+    }
+  }
+  if (bamboo_smem_size) {
+        tprintf("Left over alloc space from %x to %x\n", bamboo_cur_msp, bamboo_cur_msp+bamboo_smem_size);
+    padspace(bamboo_cur_msp, bamboo_smem_size);  
+  }
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+}
+
+void gc(struct garbagelist *gl) {
+  tprintf("start GC\n");
+  pmc_init();
+  //mark live objects
+  tprintf("mark\n");
+  pmc_mark(gl);
+  //count live objects per unit
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+  tprintf("count\n");
+  pmc_count();
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+  //divide up work
+  tprintf("divide\n");
+  if (BAMBOO_NUM_OF_CORE==STARTUPCORE) {
+    pmc_processunits();
+  }
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+  //set up forwarding pointers
+  tprintf("forward\n");
+  pmc_doforward();
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+  //update pointers
+  tprintf("updaterefs\n");
+  pmc_doreferenceupdate(gl);
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+  //compact data
+  tprintf("compact\n");
+  pmc_docompact();
+  //reset memory allocation
+  bamboo_cur_msp=NULL;
+  bamboo_smem_size=0;
+  tprintf("done\n");
+
+  gcflag=false;
+  tmc_spin_barrier_wait(&pmc_heapptr->barrier);
+
+  tprintf("exit GC\n");
+}
+
+void padspace(void *ptr, unsigned int length) {
+  //zero small blocks
+    tprintf("Padspace from %x to %x\n", ptr, ptr+length);
+  if (length<sizeof(struct ArrayObject)) {
+    BAMBOO_MEMSET_WH(ptr,0,length);
+  } else {
+    //generate fake arrays for big blocks
+    struct ArrayObject *ao=(struct ArrayObject *)ptr;
+    ao->type=BYTEARRAYTYPE;
+    unsigned arraylength=length-sizeof(struct ArrayObject);
+    ao->___length___=arraylength;
+    ao->marked=0;
+  }
+}
+
+void gettype_size(void * ptr, unsigned int * ttype, unsigned int * tsize) {
+  int type = ((int *)ptr)[0];
+  if (type>TOTALNUMCLASSANDARRAY) {
+    tprintf("ptr=%x type=%u\n", ptr, type);
+  }
+
+  if(type < NUMCLASSES) {
+    // a normal object
+    *tsize = classsize[type];
+    *ttype = type;
+  } else {
+    // an array
+    struct ArrayObject *ao=(struct ArrayObject *)ptr;
+    unsigned int elementsize=classsize[type];
+    unsigned int length=ao->___length___;
+    *tsize = sizeof(struct ArrayObject)+length*elementsize;
+    *ttype = type;
+  } 
+}