5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 1356,1368 ****
                      kthread_t *new)
  {
          pg_cmt_t        *cmt_pg = (pg_cmt_t *)pg;
  
          if (old == cp->cpu_idle_thread) {
!                 atomic_add_32(&cmt_pg->cmt_utilization, 1);
          } else if (new == cp->cpu_idle_thread) {
!                 atomic_add_32(&cmt_pg->cmt_utilization, -1);
          }
  }
  
  /*
   * Macro to test whether a thread is currently runnable on a CPU in a PG.
--- 1356,1368 ----
                      kthread_t *new)
  {
          pg_cmt_t        *cmt_pg = (pg_cmt_t *)pg;
  
          if (old == cp->cpu_idle_thread) {
!                 atomic_inc_32(&cmt_pg->cmt_utilization);
          } else if (new == cp->cpu_idle_thread) {
!                 atomic_dec_32(&cmt_pg->cmt_utilization);
          }
  }
  
  /*
   * Macro to test whether a thread is currently runnable on a CPU in a PG.
*** 1381,1391 ****
          cpupm_domain_t  *dom;
          uint32_t        u;
  
          if (old == cp->cpu_idle_thread) {
                  ASSERT(new != cp->cpu_idle_thread);
!                 u = atomic_add_32_nv(&cmt->cmt_utilization, 1);
                  if (u == 1) {
                          /*
                           * Notify the CPU power manager that the domain
                           * is non-idle.
                           */
--- 1381,1391 ----
          cpupm_domain_t  *dom;
          uint32_t        u;
  
          if (old == cp->cpu_idle_thread) {
                  ASSERT(new != cp->cpu_idle_thread);
!                 u = atomic_inc_32_nv(&cmt->cmt_utilization);
                  if (u == 1) {
                          /*
                           * Notify the CPU power manager that the domain
                           * is non-idle.
                           */
*** 1393,1403 ****
                          cpupm_utilization_event(cp, now, dom,
                              CPUPM_DOM_BUSY_FROM_IDLE);
                  }
          } else if (new == cp->cpu_idle_thread) {
                  ASSERT(old != cp->cpu_idle_thread);
!                 u = atomic_add_32_nv(&cmt->cmt_utilization, -1);
                  if (u == 0) {
                          /*
                           * The domain is idle, notify the CPU power
                           * manager.
                           *
--- 1393,1403 ----
                          cpupm_utilization_event(cp, now, dom,
                              CPUPM_DOM_BUSY_FROM_IDLE);
                  }
          } else if (new == cp->cpu_idle_thread) {
                  ASSERT(old != cp->cpu_idle_thread);
!                 u = atomic_dec_32_nv(&cmt->cmt_utilization);
                  if (u == 0) {
                          /*
                           * The domain is idle, notify the CPU power
                           * manager.
                           *